https://www.researchgate.net/profile/Judy-Mikovits
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Publications (101)
Oct 2014
Judy Mikovits / Vincent C Lombardi / Max A Pfost / Kathryn S Hagen / Francis Ruscetti
In October 2009, we reported the first direct isolation of infectious xenotropic murine leukemia virus-related virus (XMRV). In that study, we used a combination of biological amplification and molecular enhancement techniques to detect XMRV in more than 75% of 101 patients with chronic fatigue syndrome (CFS). Since our report, controversy arose af...
Jan 2014
D.L.S. Goetz / Judy Mikovits / Jamie Deckoff-Jones / Francis Ruscetti
Chronic Fatigue Syndrome (CFS) is recognized by the WHO as an alternative name for Myalgic Encephalomyelitis, which has been classified as a disease of the central nervous system since 1969. The concept that chronic microbial infection drives constant activation of the innate immune system through alterations in the production of innate immune cell...
May 2013
e22038 Background: Clonal T-cell expansion and monocytosis could explain inflammation, fatigue and autoimmunity seen with cancer if both cell types release excess amounts of cytokines and disregulate the immune system. Cytokines can also have a paracrine effect and increase malignant cell proliferation. Methods: 48 patients with various neoplasms f...
May 2013
e22039 Background: The only known human cancer retrovirus, HTLV1 causes adult T-cell leukemia/lymphoma of which some respond to AZT+ alpha interferon. The existence of human retroviruses originating from murine leukemia viruses (MLVs) and their role in human cancer has been debated since the 1970s. A previously untreated 68 y.o. Oncologist with B-c...
Sep 2012
Harvey J. Alter / Judy Mikovits / William M Switzer / Francis Ruscetti / Shyh-Ching Lo / Nancy G Klimas / Anthony L Komaroff / Jose Gilberto Montoya / Lucinda Bateman / Susan Levine / Daniel Peterson / Bruce Levin / Maureen R Hanson / Afia Genfi / Muhsin Bhat / Haoqiang Zheng / Richard Yuan-Hu Wang / Bingjie Li / Guo-Chiuan Hung / Li Ling Lee / Stephen Sameroff / Walid Heneine / John Coffin / Mady Hornig / W. Ian Lipkin
IMPORTANCE Chronic fatigue syndrome/myalgic encephalomyelitis has an estimated prevalence of 42/10,000 in the United States, with annual direct medical costs of $7 billion. Here, the original investigators who found XMRV and pMLV (polytropic murine leukemia virus) in blood of subjects with this disorder report that this association is not confirmed...
Article
In our 23 October 2009 Report, "Detection of an infectious retrovirus, XMRV, in blood cells of patients with chronic fatigue syndrome" (1), two of the coauthors, Silverman and Das Gupta, analyzed DNA samples from chronic fatigue syndrome (CFS) patients and healthy controls. A reexamination by Silverman and Das Gupta of the samples they used shows t...
Article
Full-text available
Murine leukemia viruses (MLVs), including xenotropic-MLV-related virus (XMRV), have been controversially linked to chronic fatigue syndrome (CFS). To explore this issue in greater depth, we compiled coded replicate samples of blood from 15 subjects previously reported to be XMRV/MLV-positive (14 with CFS) and from 15 healthy donors previously deter...
Article
Full-text available
The label 'chronic fatigue syndrome' (CFS) has persisted for many years because of the lack of knowledge of the aetiological agents and the disease process. In view of more recent research and clinical experience that strongly point to widespread inflammation and multisystemic neuropathology, it is more appropriate and correct to use the term 'myal...
Article
Full-text available
Previous studies have shown that CFS patients have an increased incidence of lympho-proliferative malignancy compared to the normal population [1]. While the incidence rate of non-Hodgkin’s lymphoma in the United States is 0.02%, nearly 5% of the CFS patients developed the disease. Additionally, development of cancer coincides with an outgrowth of...
Article
Full-text available
Methods This hypothesis was addressed by multiplex profiling of plasma cytokines and chemokines on a LuminexTM platform and phenotypic analysis of leukocyte subsets by multi-parameter flow cytometry in XMRV infected CFS patients versus uninfected controls. XMRV-infected subject and control samples were assayed blindly. Analysis was performed using...
Multi-laboratory evaluations of XMRV nucleic acid detection assays
Article
Full-text available
The Blood XMRV Scientific Research Working Group was formed to facilitate collaborative studies into the impact of XMRV in blood donors. Studies will evaluate XMRV detection assays in terms of sensitivity, specifi-city and reproducibility; assess performance on specimens represented in existing blood donor repositories, and determine the prevalence...
Article
Article
Full-text available
The recent identification of xenotropic murine leukemia virus-related virus (XMRV) in the blood of patients with chronic fatigue syndrome (CFS) establishes that a retrovirus may play a role in the pathology in this disease. Knowledge of the immune response might lead to a better understanding of the role XMRV plays in this syndrome. Our objective w...
Article
Recently, there have been studies that indicate that Xenotropic Murine Leukemia Virus (MLV)-related Virus (XMRV), a newly described human gammaretrovirus, and other related viruses, may be associated with both prostate cancer and myalgic encephalomyelitis (ME) / chronic fatigue syndrome (CFS)1–4. It has also been suggested that these viruses have t...
Article
Full-text available
Hypocortisolism is a frequent finding in individuals with chronic fatigue syndrome (CFS) and could play an explana-tory role in the development of illness symptomatology. The etiologic mechanism behind this finding could be genetic variance in glucocorticoid receptor expression (GR) or increased resistance to the effects of glucocorticoids. Several...
Article
Despite the fact that xenotropic murine leukemia virus-related virus (XMRV) research is in its infancy, considerable attention has been focused on this recently discovered human retrovirus because of the surprising association of XMRV with two very different diseases: prostate cancer and myalgic encephalomyelitis/chronic fatigue syndrome. Like othe...
Article
Jul 2010
[...]
In 2006, sequences described as xenotropic murine leukemia virus-related virus (XMRV) were discovered in prostate cancer patients. In October 2009, we published the first direct isolation of infectious XMRV from humans and the detection of infectious XMRV in patients with chronic fatigue syndrome. In that study, a combination of classic retroviral...
Article
May 2010
We reported the detection of the human gammaretrovirus XMRV in 67% of 101 patients with chronic fatigue syndrome (CFS) and in 3.7% of 218 healthy controls, but we did not claim that XMRV causes CFS. Here, we explain why the criticisms of Sudlow et al., Lloyd et al., and van der Meer et al. regarding the selection of patients and controls in our stu...
Article
Jan 2010
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Article
Oct 2009
NOTE - THIS IS A GUEST SPEAKER OPPORTUNITY ( https://sci-hub.se/10.1016/j.cyto.2009.07.043 )
Article
Full-text available
Chronic fatigue syndrome (CFS) is a debilitating disease of unknown etiology that is estimated to affect 17 million people worldwide. Studying peripheral blood mononuclear cells (PBMCs) from CFS patients, we identified DNA from a human gammaretrovirus, xenotropic murine leukemia virus–related virus (XMRV), in 68 of 101 patients (67%) as compared to...
LINK ... THIS WAS RETRACTED . .https://sci-hub.se/10.1126/science.1179052
Please see: Partial Retraction - 14 October 2011
This article has been retracted.
Please see: Retraction - 23 December 2011
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ABERRANT EXPRESSION OF LYMPHOCYTE CYTOTOXIC PROTEINS IN CHRONIC FATIGUE SYNDROME
Conference Paper
Nov 2008
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Article
Article
Kaposi's sarcoma (KS) and its causative agent, Kaposi's sarcoma associated herpesvirus (KSHV/HHV-8), a gamma2 herpesvirus, have distinctive geographical distributions that are largely unexplained. We propose the "oncoweed" hypothesis to explain these differences, namely that environmental cofactors present in KS endemic regions cause frequent react...
Article
Feb 2006
[...]
Aberrant DNA methylation is now recognized as an important epigenetic alteration occurring early in human cancer. To directly study the role of DNA methyltransferase 1 (DNMT1) in the regulation of expression of tumor-related genes in human colon cancer cells, we stably transfected expression constructs containing sense or antisense DNMT1 into the h...
Epigenetic Control during Lymphoid Development and Immune Responses
Article
Methylation of cytosines controls a number of biologic processes such as imprinting and X chromosomal inactivation. DNA hypermethylation is closely associated with transcriptional silencing, while DNA hypomethylation is associated with transcriptional activation. Hypoacetylation of histones leads to compact chromatin with reduced accessibility to t...
Article
HIV-1 infection leads to a disease that attacks the central regulatory mechanisms of the immune response. As mucosal tissue is one of the primary sites infected with HIV in vivo, we examined the effects of HIV exposure on human mast cells, important components of mucosal defense. Using the human mast cell line, HMC-1, which expresses CXCR4 but not...
An inhibitor of glycosphingolipid metabolism blocks HIV-1 infection of primary T-cells
Article
HIV-1 uses CD4 and chemokine receptors to enter cells. However, other target membrane components may also be involved. This study examines the role of glycosphingolipids (GSL) in HIV-1 entry into primary lymphocytes and its modulation by an inhibitor of GSL biosynthesis. CD4 lymphocytes purified from normal or the p-group subtype individuals that w...
Article
The DNA polymerase (POL) of Kaposi's sarcoma-associated herpesvirus (KSHV) is essential for viral DNA replication and, thus, may be considered as a viable target for anti-KSHV therapeutics. To produce large quantities of homogeneous and pure POL required for high-throughput screening (HTS) for inhibitors, we generated a recombinant baculovirus vect...
Article
Methylation of cytosines controls a number of biologic processes such as imprinting and X chromosomal inactivation. DNA hypermethylation is closely associated with transcriptional silencing, while DNA hypomethylation is associated with transcriptional activation. Hypoacetylation of histones leads to compact chromatin with reduced accessibility to t...
A Potent Cell-active Allosteric Inhibitor of Murine DNA Cytosine C 5 Methyltransferase
Article
Full-text available
The major DNA cytosine methyltransferase isoform in mouse erythroleukemia cells, Dnmt1, exhibits potent dead-end inhibition with a single-stranded nucleic acid by binding to an allosteric site on the enzyme. The previously reported substrate inhibition with double-stranded substrates also involves binding to an allosteric site. Thus, both forms of...
Article
The crucial functions of HIV-1 nucleocapsid-p7 protein (NC-p7) at different stages of HIV replication are dependent on its nucleic acid binding properties. In this study, a search has been made to identify antagonists of the interaction between NC-p7 and d(TG)(4). A chemical library of approximately 2000 small molecules (the NCI Diversity Set) was...
Article
Full-text available
Although highly active antiretroviral therapy against human immunodeficiency virus (HIV) type 1 reduces the mortality of persons with acquired immunodeficiency syndrome, it does not eliminate HIV reservoirs. In this study, which used a 6-thioguanine (6-TG) resistant clone (4C6) of the MT-2 cell line as a model, the combination of 6-TG with both rev...
Article
Objective: DNA methylation and chromatin modification of histone acetylation are two global mechanisms that regulate gene expression. p16INK4A and p21WAF1 are cyclin-dependent kinases inhibitors. Human immunodeficiency virus type 1 (HIV-1) induces up-regulation of DNA methyltransferase (DNMT), hypermethylation and down-regulation of p16INK4A gene i...
Article
Hyper-mutable retroviruses such as HIV can become rapidly resistant to drugs used to treat infection. Strategies for coping with drug-resistant strains of virus include combination therapies, using viral protease and reverse transcriptase inhibitors. Another approach is the development of antiviral agents that attack mutationally nonpermissive targ...
Article
Full-text available
DNA methylation, by regulating the transcription of genes, is a major modifier of the eukaryotic genome. DNA methyltransferases (DNMTs) are responsible for both maintenance and de novo methylation. We have reported that human immunodeficiency virus type 1 (HIV-1) infection increases DNMT1 expression and de novo methylation of genes such as the gamm...
Peptide T inhibits HIV-1 infection mediated by the chemokine receptor-5 (CCR5)
Article
Peptide T, which is derived from the V2 region of HIV-1, inhibits replication of R5 and dual-tropic (R5/X4) HIV-1 strains in monocyte-derived macrophages (MDMs), microglia, and primary CD4(+)T cells. Little to no inhibition by peptide T was observed with lab adapted X4 viruses such as IIIB, MN, or NL4-3 propagated in CD4(+) T cells or in the MAGI e...
Data
Sep 2001
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Flavopiridol, actinomycin D and DRB
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Sep 2001
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Flavopiridol titration
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Sep 2001
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Cdk inhibitors
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Sep 2001
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Induced genes in OCI -Ly3 cells
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Sep 2001
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Highly induced genes in PBMC
Data
Sep 2001
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Half-lives of well-measured genes
Data
Sep 2001
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Proliferation genes
Data
Sep 2001
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Anti-apoptotic genes
Data
Sep 2001
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Highly induced chemokines, cytokines and their receptors
Article
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Jun 2001
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The G protein-coupled 7 transmembrane (STM) chemoattractant receptors can be inactivated by heterologous desensitization. Earlier work showed that formly peptide receptor-like 1 (FPRL1), an STM receptor with low affinity for the bacterial chemotactic peptide formyl-methionyl-leucyl-phenylalamine (fMLF), is activated by peptide domains derived from...
STAT5 pathway: Target of anti-CD4 antibody in attenuation of IL-2 receptor signaling
Article
Apr 2001
[...]
Anti-CD4 antibodies induce long-term graft survival by incompletely understood mechanisms, and CD4-ligation with HIV gp120-derivatives attenuates interleukin (IL)-2 receptor signaling. We examined the latter in the context of the CD4-modulating antibody 16H5. We performed immunoblots to assess the IL-2-induced phosphorylation of signal transducer a...
Potential Cellular Signatures of Viral Infections in Human Hematopoietic Cells
Article
Full-text available
Feb 2001
[...]
Expression profiling of cellular genes was performed using a 10,000 cDNA human gene array in order to identify expression changes following chronic infection of human hematopoietic cells with Kaposi's Sarcoma-associated Virus (KSHV) also known as Human Herpesvirus 8 (HHV8) and Human T cell leukemia virus-1 (HTLV-1). We performed cell-free in vitro...
Article
Full-text available
Feb 2001
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Flavopiridol, a flavonoid currently in cancer clinical trials, inhibits cyclin-dependent kinases (CDKs) by competitively blocking their ATP-binding pocket. However, the mechanism of action of flavopiridol as an anti-cancer agent has not been fully elucidated. Using DNA microarrays, we found that flavopiridol inhibited gene expression broadly, in co...
Article
Flavonoid Baicalin Inhibits HIV-1 Infection at the Level of Viral Entry
Article
Oct 2000
[...]
Baicalin (BA) is a flavonoid compound purified from medicinal plant Scutellaria baicalensis Georgi and has been shown to possess anti-inflammatory and anti-HIV-1 activities. In an effort to elucidate the mechanism of the anti-inflammatory effect of BA, we recently found that this flavonoid compound was able to form complexes with selected chemokine...
Article
Mar 2000
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Nov 1999
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Nov 1999
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Ebola viruses are filamentous, enveloped, nonsegmented RNA viruses. Although most Ebola viruses, notably Ebola-Zaire virus, are highly infectious for primates and can cause severe haemorrhagic diseases, Ebola-Reston virus does not cause serious disease in humans. Microarray technology was employed to compare cellular gene responses to Ebola-Zaire a...
Article
To explore the role of chemokines in mast cell chemotaxis and accumulation at sites of inflammation, we first investigated the response of human mast cells to 18 different chemokines by induction of intracellular calcium mobilization in the human mast cell line, HMC-1. Only a subgroup of CXC chemokines defined by the conserved sequence motif glutam...
Article
To explore the role of chemokines in mast cell chemotaxis and accumulation at sites of inflammation, we first investigated the response of human mast cells to 18 different chemokines by induction of intracellular calcium mobilization in the human mast cell line, HMC-1. Only a subgroup of CXC chemokines defined by the conserved sequence motif glutam...
Anti-CD4 antibody attenuates interleukin-2 receptor signaling
Article
Apr 1999
[...]
Article
PRODUCTIVE HUMAN RETROVIRAL INFECTION OF CD56+ HUMAN FETAL LIVER NK/LYMPHOID PROGENITOR CELL LINES
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Article
Feb 1999
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Article
Full-text available
The immune response to pathogens is regulated by a delicate balance of cytokines. The dysregulation of cytokine gene expression, including interleukin-12, tumor necrosis factor alpha, and gamma interferon (IFN- g), following human retrovirus infection is well documented. One process by which such gene expression may be modulated is altered DNA meth...
ATTENUATION OF IL-2 RECEPTOR SIGNALING BY CD4-LIGATION - MOLECULAR MECHANISMS
Article
Jun 1998
[...]
Similar Levels of Human Immunodeficiency Virus Type 1 Replication in Human TH1 and TH2 Clones
Article
Full-text available
Studies on the development and function of CD4+ TH1 and TH2 cells during the progression to AIDS may increase the understanding of AIDS pathogenesis. The preferential replication of human immunodeficiency virus (HIV) in either TH1 or TH2 cells could alter the delicate balance of the immune response. TH1 (gamma interferon [IFN-gamma] positive, inter...
ATTENUATION OF IL2 RECEPTOR SIGNALING BY CD4-LIGATION-MOLECULAR MECHANISMS
Article
May 1998
[...]
Attenuation of IL-2 signaling by CD4 ligand involves the cytoskeleton but does not require P56LCK.
Article
Jan 1998
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Article
In contrast to other retroviruses of the oncovirinae subgroup, the primate and bovine leukemia viruses (HTLV, STLV, and BLV) encode genes in the X-region of the genome, between the env gene and the 3' long terminal repeat. In HTLV-I, two overlapping open reading frames (ORFs) in the distal half of the X-region encode tax and rex genes, while two OR...
Article
Full-text available
Apr 1997
[...]
Vitamin E succinate (VES), a derivative of the fat-soluble vitamin D-alpha-tocopherol (vitamin E), inhibited growth and induced apoptotic cell death of estrogen receptor-negative human breast cancer cells. VES-induced apoptosis in MDA-MB-231 and SKBR-3 cells occurred through a Fas pathway. Total protein levels of the Fas receptor (Fas; APO-1/CD-95)...
Interruption of IL-2 receptor signaling by CD3-ligand HIV-gp120 binding.
Conference Paper
Jan 1997
[...]
The manifest cytocidal and cytopathic activities of HIV on CD4+ T cells do not explain the global immunodeficiency of HIV infected individuals. Moreover, infusions of IL-2 have been associated with sustained increases in CD4 counts in these patients (Kovacs et al., N Engl J Med 332:567-75, 1995). Accordingly, in an effort to clarify the etiology of...
Article
Full-text available
Jun 1996
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The negative regulatory element (NRE) of human immunodeficiency virus type-1 (HIV-1) long terminal repeat (LTR) is a defined region that has been reported to downregulate LTR-directed HIV gene expression. However, information on the precise role of this region in regulating HIV gone transcription is lacking. We have investigated the possibility tha...
In vitro infection of primary and retrovirus-infected human leukocytes by human foamy virus
Article
Full-text available
The infectivity of human foamy virus (HFV) was examined in primary and cultured human leukocytes. Cell-free infectious viral stocks of HFV were prepared from the human kidney cell line 293 transfected with an infectious molecular clone of HFV. HFV productively infects a variety of human myeloid and lymphoid cell lines. In addition, primary cell cul...
Article
May 1996
[...]
Infectious molecular clones of HTLV-I proviruses have only recently been reported. The long wait for such provirus clones reflects the difficulties inherent in propagating HTLV-I in vitro, and thus a rigorous demonstration of infectivity has awaited improved cell culture systems and sensitive detection techniques for HTLV-I. An intact HTLV-I provir...
Article
Full-text available
IgE/anti-IgE immune complexes (IgE-IC) induce the release of multiple mediators from monocytes/macrophages and the monocytic cell line U937 following the ligation of the low-affinity Fc epsilon receptors (Fc epsilon RII/CD23). These effects are mediated through an accumulation of cAMP and the generation of L-arginine-dependent nitric oxide (NO). Si...
Regulation of interferon-gamma gene expression: Multiple mechanisms of control.
Article
Article
Oct 1995
Judy Mikovits / PM HOFFMAN / Axel Rethwilm / Francis Ruscetti
Article
Full-text available
Sep 1995
[...]
Several lines of evidence suggest that cellular proteins play a role during human immunodeficiency virus type 1 (HIV-1) Tat-mediated trans activation. A recent report from this laboratory has shown that a 140-kDa HeLa nuclear protein (p140) binds specifically to the lower stem region of the Tat response element, TAR RNA. Since HIV-1 trans activatio...
cis-Acting Regulatory Elements in the Bovine Immunodeficiency Virus Long Terminal Repeat
Article
Functional cis-acting regulatory elements in the bovine immunodeficiency virus (BIV) long terminal repeat (LTR) were identified by deletion mapping and nuclear protein gel shift analysis using three BIV-infectible cell lines, Cf2Th, BLAC-20, and EREp. Deletion mapping studies indicated that putative NF-kappa B, GRE, AP-4, AP-1, CAAT, and ATF/CRE tr...
Article
Full-text available
Apr 1995
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The ability of molecular clones of human T-cell leukemia virus type I (HTLV-I) to direct the synthesis of infectious virions has not previously been demonstrated. An HTLV-I provirus originating from an adult T-cell leukemia patient was cloned into a plasmid vector and is designated pCS-HTLV. This molecular clone was shown to direct the synthesis of...
Article
Full-text available
Feb 1995
[...]
3-Deazaadenosine (DZA), 3-deaza-(+/-)-aristeromycin (DZAri), and 3-deazaneplanocin A (DZNep) are powerful modulators of cellular processes. When tested against H9 cells infected acutely with two different strains of human immunodeficiency virus 1 (HIV-1) and in the chronically infected monocytoid cell lines U1 and THP-1, the 3-deazanucleosides caus...
IL-4 and IL-13 have overlapping but distinct effects on HIV production in monocytes
Article
In HIV-1-infected monocytes and monocytoid cell lines, viral expression can be observed as high-level production, restricted (chronic low-level) expression, and latency (no viral expression). Interleukin-13 (IL-13) and IL-4, which have remarkedly similar deactivating effects on inflammatory monocyte functions, were studied for their regulation of H...
Article
EVIDENCE FOR INFECTION IN RATS FOLLOWING EXPOSURE TO A MOLECULAR CLONE OF HTLV-I
Article
Apr 1994
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HTLV-1 INTERACTION WITH GLIAL-CELLS - IMPLICATIONS FOR HAM/TSP
Article
Apr 1994
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Article
Full-text available
Aug 1993
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The Tax protein of the human T-cell leukemia virus type I (HTLV-I) has been shown to induce nuclear expression of Rel family NF-kappa B-binding proteins. However, under different experimental conditions, different J. H. Kim, Y. Daitoku, and W. G. Greene, J. Virol. 65:6892-6899, 1991). In this study, using specific immunological reagents capable of...
1993-08-journal-of-virology-diff-expression-of-rel-family-members-tcell-li-ruscetti.pdf
August 1993
67(7):4205-13
DOI:10.1128/JVI.67.7.4205-4213.1993
Differential Expression of Rel Family Members in Human
T-Cell Leukemia Virus Type I-Infected Cells:
Transcriptional Activation of c-rel by
Tax Protein
CHOU-CHI H. LI,1* FRANCIS W. RUSCETTI,2 NANCY R. RICE,3 EYING CHEN,1 NING-SUN YANG,4
JUDY MIKOVITS,' AND DAN L. LONGO2
Biological Carcinogenesis and Development Program, Program Resources, Inc. /Dyncorp, 1 Laboratory of
Leukocyte Biology, Biological Response Modifiers Program, Division of Cancer Treatment,2 Laboratory
of Molecular Virology and Carcinogenesis, ABL-Basic Research Program, 3 National Cancer Institute-
Frederick Cancer Research and Development Center, Frederick, Maryland 21702, and Agracetus,
Middleton, Wisconsin 535624
Received 7 January 1993/Accepted 21 April 1993
ACKNOWLEDGMENTS
We thank H. Temin for the c-rel promoter construct; W. Farrar
for the J-tax cell line; B. Felber and J. Harrison for the Tax plasmid
and assistance in the luciferase assay; T. Copeland and S. Oroszlan
for Tax antiserum; Raziuddin, R. M. Dai, and M. Korner for
consultations on EMSA; H. Phillips for help in tissue cultures; L.
Cheng and J. Sum for particle bombardment-mediated gene transfer;
and L. Martinez and T. Phillips for preparation of the manuscript.
============================
Article
Full-text available
The pathogenesis of progressive spastic paraparesis [HTLV-I-associated myelopathy/tropical spastic paraparesis (HAM/TSP)], a serious consequence of human T-cell leukemia virus type I (HTLV-I) infection, is unclear. T and B lymphocytes can be naturally infected by HTLV-I, but the susceptibility to HTLV-I infection of other cell types that could cont...
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Article
Full-text available
Jan 1993
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Cellular transcription factors play critical roles in regulating human immunodeficiency virus (HIV) gene transcription, although the precise mechanism(s) defining their roles are not well established. Primarily it has been suggested that sequence-specific interaction of trans-activating proteins with cis-acting DNA elements plays a crucial role in...
DOI:10.1016/S0021-9258(19)73989-1
THE Journal of Biological Chemistry
1993-01-the-journal-of-biological-chemistry-characterization-purification-nov-transcriptional-reprocessor-west-mikovits.pdf
Michael West$, Judy MikovitsS, Gerald Princlerg, Ya-LunL iuS, Frank W. Ruscettill,
Hsiang-Fu Kungg, and RaziuddinS I(
From the Laboratories of §Biochemical Physiology and YMolecular Immunoregulation, Biological Response Modifiers Program,
Division of Cancer Treatment, National Cancer Institute and the $Biological Carcinogenesis and Development Program,
Program Resources, Inc./DynCorp., Frederick Cancer Research and Development Center, Frederick, Marylund 21 702-1201
(Received for publication, June 23, 1992)
==================
TheJournalofClinicalInvestigation,Inc. Volume90,October1992,1486-1491
1992-10-the-journal-of-clinical-investigation-mikovits.pdf
also available at : https://www.ncbi.nlm.nih.gov/pmc/articles/PMC443195/
PMID: 1401081
doi: 10.1172/JCI116016
Article
Nov 1992
[...]
Activation of Infectious Virus from Latent Human Immunodeficiency Virus Infection of Monocytes In Vivo
JudyA.Mikovits,*NancyC.Lohrey, RichardSchulof, JaneCourtless, andFrancisW.Ruscettit
*Biological Carcinogenesis and Development Program, Program Resources/DynCorp, Inc.; $Laboratory ofImmunoregulation, BiologicalResponseModifiersProgram,NationalCancerInstitute-FrederickCancerResearchandDevelopmentCenter,
Frederick, Maryland 21702-1201; and 1AIDS Clinical Trials Unit, George Washington University Medical Center, Washington, District ofColumbia 20037
Individuals infected with HIV may be asymptomatic for years before progressing to overt AIDS. Since HIV can latently infect monocytoid cell lines, we examined whether HIV latency occurs in monocytes in vivo. Freshly isolated monocytes from asymptomatic seropositive individuals examined before and after culture were positive for HIV DNA, but not RNA...
Individuals infected with HIV may be asymptomatic for years before progressing to overt AIDS. Since HIV can latently infect monocytoid cell lines, we examined whether HIV latency occurs in monocytes in vivo. Freshly isolated monocytes from asymptomatic seropositive individuals examined before and after culture were positive for HIV DNA, but not RNA, as measured by polymerase chain reaction, showing that HIV latency occurs in monocytes in vivo. Coculture of these latently infected monocytes with Con A-activated T cells from HIV-negative normal donors stimulated 90% of the patients' samples and latently infected THP-1 to produce infectious virus. Neither Con A, resting T cells, nor T cell supernatants induced virus. Plasma membranes from activated T cells stimulated HIV production, suggesting cell contact induces factor(s) in monocytes to overcome latency. Thus, monocytes in AIDS patients harbor latent HIV inducible during an immune response, leading to T cell infection and viral-induced pathology.
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Article
Full-text available
Dec 1991
[...]
Although monocytic cells can provide a reservoir for viral production in vivo, their regulation of human immunodeficiency virus type 1 (HIV-1) transcription can be either latent, restricted, or productive. These differences in gene expression have not been molecularly defined. In THP-1 cells with restricted HIV expression, there is an absence of DN...
Article
Full-text available
Jun 1990
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In THP-1 monocytoid cells infected with HIV, viral expression can be regulated in several ways: (a) latency (no viral expression); (b) restricted expression (chronic low-level viral expression with little or no detectable virus released); and (c) continuous production. In cells with restricted HIV expression, nuclear factor(s) were found that block...
Interferon-Induced Activation of Latent Transforming Growth Factor? by Human Monocytes
Article
Article
Full-text available
May 1990
Full list of authors, from PDF : BY JUDY A. MIKOVITS,' RAZIUDDIN,` MATTHEW GONDA,T MARTIN RUTA,1 NANCY C. LOHREYS HSIANG-FU KUNG,N AND FRANCIS W. RUSCETTIS
From the 'Department of Biological Carcinogenesis Development Program and the TLaboratory of
Cell and Molecular Structure, Program Resources, Inc . ; the SLaboratory of Molecular
Immunoregulation and the Il Laboratory of Biochemical Physiology, National Cancer Institute,
Frederick Cancer Research Facility, Frederick, Maryland 21701; and the Division of Blood and
Blood Products, Centers for Biologic Evaluation and Research, Bethesda, Maryland 20892
SO... "Program Resources, Inc." is DynCorp
Article in Journal of Experimental Medicine (JEM) · May 1990
DOI: 10.1084/jem.171.5.1705
1990-05-journal-of-experimental-medicine-negative-regulation-hiv-relication-in-monocytes-mikovits.pdf
In THP-1 monocytoid cells infected with HIV, viral expression can be regulated in several ways: (a) latency (no viral expression); (b) restricted expression (chronic low-level viral expression with little or no detectable virus released); and (c) continuous production. In cells with restricted HIV expression, nuclear factor(s) were found that block...
Gamma-interferon-induced activation of latent transforming growth factor-beta by human monocytes
Feb 1990
D R Twardzik / Judy Mikovits / J E Ranchalis / [...]
A. F. PURCHIO ( https://www.researchgate.net/scientific-contributions/A-F-Purchio-60160063 )
LARRY ELLINGSWORTH ( https://www.researchgate.net/scientific-contributions/L-R-Ellingsworth-47006401 )
Affiliations
[a] “Oncogen-Bristol Myers-Squibb, Seattle, Wshington 98121"
[b] "Program Resources Inc. , National Cancer Institute - Frederick Cancer Research Facility, Frederick, Maryland 21702"
[c] "Collagen Corporation, Palo Alto, California 94303"
[d] “Laboratory of Molecular Immunoregulation, Biological Response Modifiers Program, National Cancer Institute- Frederick Cancer Research Facility, Frederick, Maryland 21701"
PMID: 2115757 / DOI: 10.1111/j.1749-6632.1990.tb16119.x
Gamma-interferon-induced activation of latent transforming growth factor-beta by human monocytes
February 1990Annals of the New York Academy of Sciences 593:276-84
DOWNLOADED PDF FROM : https://sci-hub.se/10.1111/j.1749-6632.1990.tb16119.x
1990-02-annals-of-the-new-york-academy-of-sciences-gamma-interferon-induced-activation-of-latent-transforming-gfb.pdf
1990-02-annals-of-the-new-york-academy-of-sciences-gamma-interferon-induced-activation-of-latent-transforming-gfb-img-pg-01.jpg
https://drive.google.com/file/d/1O5MaunQNV162eMMtwENy0ee8PTL6dHnp/view?usp=drive_link
ABSTRACT :
Transforming growth factor-ps (TGFps), a family of at least four different homologous
disulfide-linked homodimeric polypeptides, are potent modulators of cell growth and
differentiation.’-3 Analysis of cDNA clones encoding mammalian TGFPs and appro-
priate cell culture supernatants indicates that the mature molecule is cleaved from the
carboxy terminus of a larger glycosylated precurso+6 and is secreted in a latent, in-
active form?-9 Transient acidification activates EFP; however, the physiological
mechanism(s) of TGFB secretion and activation, which initiate its potent autocrine
and paracrine effects in vivo, are poorly understood.
In this study, we asked whether cell association was involved in activation of ‘EFp.
The ’’latent- recombinant complex used contains one dimeric TGFpl molecule associated
with a disulfide-bonded dimeric remnant of the precursor. Fresh human monocytes
stimulated by y-interferon (yIFN), activates the “latent” recombinant EFPl complex
(LmFPl) in a dose-dependent manner. The activated XFpl released into the media
is neutralized by a TGFPl monoclonal antibody and has a mass (24 kD) identical to
native TGFB1. Thus, TGFSl activation by monocytes may require y IFN-mediated gene
expression as well as a cell-associated processing event.
TITLE : Differential regulation of the two IL-2-binding proteins. Physiological consequences
Feb 1989
PAPER - CANNOT FIND THIS PAPER ( PMID: 2652929 ... DOI ??? )
TITLE : "Analysis of the effector mechanisms against HTLV-1 and HTLV-III/LAV infected lymphoid cells"
[ Source (of this entry on ResearchGate) : https://www.researchgate.net/publication/20734368_Analysis_of_the_effector_mechanisms_against_HTLV-1_and_HTLV-IIILAV_infected_lymphoid_cells ]
Publication Date : Jun 1986 (June) [ Note : paper says "Vol. 136, No. 10, May 15 1986" ]
Publication : J Immunol (1986) 136 (10): 3619–3624.
DOI : 10.4049/jimmunol.136.10.3619
PMID : 2422259
Authors :
V S Kalyanaraman (c) [Research Gate: https://www.researchgate.net/scientific-contributions/V-S-Kalyanaraman-38239525 ]
R Overton (d) [Research Gate: https://www.researchgate.net/scientific-contributions/R-Overton-49301808 ]
H Stevenson (e) [Research Gate : https://www.researchgate.net/scientific-contributions/H-C-Stevenson-39037558 ]
K Stromberg (b) [Research Gate : https://www.researchgate.net/scientific-contributions/K-Stromberg-46757025 ]
R B Herberman (e) [Research Gate : https://www.researchgate.net/scientific-contributions/R-B-Herberman-2163336651?_tp=eyJjb250ZXh0Ijp7ImZpcnN0UGFnZSI6InB1YmxpY2F0aW9uIiwicGFnZSI6InB1YmxpY2F0aW9uIn19 ]
W L Farrar (a) [Research Gate : https://www.researchgate.net/scientific-contributions/W-L-Farrar-39362542?_tp=eyJjb250ZXh0Ijp7ImZpcnN0UGFnZSI6InB1YmxpY2F0aW9uIiwicGFnZSI6InB1YmxpY2F0aW9uIn19 ]
J R Ortaldo (e) [Research Gate: https://www.researchgate.net/scientific-contributions/John-R-Ortaldo-39813572 ]
Author Affiliations :
DOWNLOADED PAPER (PDF) :
Source : https://journals.aai.org/jimmunol/article/136/10/3619/16079/Analysis-of-effector-mechanisms-against-HTLV-I-and / PAID $35 (May 3 2024)
1986-05-15-journal-of-immunology-effector-mech-htlvi-htlviii-lymphoid-cells.pdf
https://drive.google.com/file/d/1MEtKNs-sW6uI0n8g5EQcrPfMfwvWc0BD/view?usp=drive_link
1986-05-15-journal-of-immunology-effector-mech-htlvi-htlviii-lymphoid-cells-img-pg-01,jpg
ABSTRACT :
Acquired immunodeficiency syndrome is associated with a viral (HTLV-III/LAV)-mediated progressive depletion of a helper/inducer T4+ T cell subset, whereas acute T cell leukemia is associated with a viral (HTLV-I)-mediated growth of the same T cell subset. Because large granular lymphocytes (LGL) with natural killer (NK) activity have been shown to spontaneously lyse several virus-infected target cells, the ability of NK cells to lyse both HTLV-I- and HTLV-III/LAV-infected lymphoid cell lines and fresh lymphocytes was explored. Normal lymphocytes (T cells and LGL), with and without pretreatment with recombinant interleukin 2 (IL 2), as well as monocytes, with and without pretreatment with interferon-gamma were employed as effectors. Both IL 2-activated T cells and NK cells were cytolytic for HTLV-I-infected targets. However, only LGL demonstrated significant spontaneous activity against HTLV-I-infected targets. Similarly, LGL showed spontaneous cytolytic activity against HTLV-III/LAV-infected targets, and this cytotoxicity was considerably augmented by IL 2. In contrast, T cells and monocytes were unable to lyse HTLV-III/LAV targets, and only minimal activity was induced by activation. LGL cells, B cells, and monocytes were infectible in vitro by high titers of HTLV-III/LAV. However, levels of reverse transcriptase found in these cultures were significantly lower than the levels in T cell cultures. In contrast, only T cells were susceptible to infection by HTLV-I. Experiments with the use of cell cocultures showed that LGL afforded T cells protection from infection by HTLV-I (as indicated by lack of transformation and viral protein expression) but not from infection by HTLV-III/LAV. Collectively, these results indicate that NK cells may play a role in protecting cells against HTLV infection.
Last entry ..
Negative regulation of HIV expression in monocytes /
Article
Abstract inserted. Includes bibliographical references (leaves 131-161). Thesis (Ph. D.)--George Washington University, 1992.
Derse - Aug 7 2000, passing of father
https://www.newspapers.com/image/780587422/?match=1&terms=%22david%20derse%22