JAWAHARLAL NEHRU UNIVERSITY
Special Centre for Molecular Medicine
Featured Talk
25th July, 2019; 11:00 AM
Venue: Seminar Room, SCMM
Commensal microbes and their metabolites in health and disease: Few stories from HIV, cancer and aging.
Santanu Banerjee, Ph.D.
Assistant Professor
Department of Surgery/Surgical Oncology
University of Miami, Florida, USA.
Abstract: A host of disease-associated inflammatory events have been correlated to changes in the microbial composition in the lung and gut mucosa. This “dysbiosis” of the microbiome has been suggested to either foster the pro-inflammatory prognosis by influencing the innate immune system of the host, or has been suggested as an early marker for these changes. While there is a dearth of knowledge on the lung microbial dysbiosis in disease models, wealth of information is emerging on the gut microbiome dysbiosis , leading to increased systemic inflammation and co-morbidities in various diseases. In recent years, my laboratory has started generating and working with NSG-BLT and CD34+ humanized mice on various aspects of mucosal immunology, including elucidating the role of commensal microbiota from various mucosal surfaces and its influence on host immune system and metabolism of proximal tissues using 16s pyrosequencing and shotgun metagenomics. Recent unpublished work includes looking at the host and microbial metabolites and their crosstalk in murine models of opioid addiction, HIV infection or pancreatic cancer using targeted (Isotope Ratio Outlier Analysis; IROA) and untargeted (Tandem Mass spectrometry) LC-MS/MS and GC-MS based approaches. In my laboratory, we bring these platforms together to elucidate the precise role of microbiome in host pathogenesis in the context of inflammatory diseases with special focus on personalized medicine (bench to bedside approach). This presentation will describe these findings.