Gosain
Laboratory
Role of the Enteric Nervous System in Pediatric Colorectal Diseases
Our overarching goal is to define fundamental biology of the enteric nervous system (ENS) in order to develop novel therapies for a broad range of congenital and acquired pediatric colorectal diseases (e.g. Hirschsprung disease, Inflammatory Bowel Diseases).
Neural Crest Cell - Extracellular Matrix Interactions during ENS Development: Hirschsprung Disease (HSCR)
Hirschsprung disease (HSCR) is a common cause of neonatal bowel obstruction and is invariably lethal if untreated. HSCR results from failure of neural crest-derived cells (NCC) to migrate into and colonize the distal colon to form the enteric nervous system (ENS) which controls motility, secretion, digestion and absorption. NCC migration is governed by interactions between NCC and the extracellular matrix (ECM) in the surrounding intestinal microenvironment.
ENS in Intestinal Homeostasis: Hirschsprung-Associated Enterocolitis (HAEC)
Hirschsprung-associated enterocolitis (HAEC) is a life-threatening complication of Hirschsprung Disease (HSCR). HAEC affects 30-60% of infants with HSCR and carries a mortality of 5-10%, with the majority of deaths occurring in newborns prior to definitive operation. Dysmotility, dysbiotic microbiota, impaired mucosal immunity, and intestinal barrier dysfunction all appear to contribute to the pathogenesis of HAEC.