SEP 02, 2015 6:00 AM PDT

Structure and Function of the Human Microbiome

Presented at: Microbiology
Speaker
  • Principal Investigator, Department of Biostatistics, Harvard T.H. Chan School of Public Health
    Biography
      Dr. Curtis Huttenhower is an Associate Professor of Computational Biology and Bioinformatics at the Harvard T.H. Chan School of Public Health and an Associate Member at the Broad Institute. He received his Ph.D. from Princeton University, where he also performed his postdoctoral research at the Lewis-Sigler Institute. He was an analysis lead in the NIH Human Microbiome Project and currently co-leads the "HMP2" Center for Characterizing the Gut Microbial Ecosystem in Inflammatory Bowel Disease. His lab focuses on computational methods for functional analysis of microbial communities. This includes systems biology reconstructions integrating metagenomic, metatranscriptomic, and other microbial community 'omics, the human microbiome in autoimmune disease such as IBD, and its potential as a diagnostic tool and point of therapeutic intervention.

    Abstract

    Among many surprising insights, the genomic revolution has helped us to realize that we're never alone and, in fact, barely human. For most of our lives, we share our bodies with some ten times as many microbes as human cells. They are resident in our gut and on nearly every body surface, and they are responsible for a tremendous diversity of metabolic activity and immunomodulation. These microbial communities are a normal part of human health, and their disruption has been implicated in diseases from colorectal cancer to inflammatory bowel disease. The human microbiome has begun to be well-described using high-throughput sequencing, and understanding its role in health and disease requires techniques from genomics, computational "big data" mining, and molecular epidemiology. I will discuss what is now known regarding the microbiome's baseline ecology, molecular function, and analysis methods, including comments on metagenomic and metatranscriptomic sequencing for mixed microbial communities, experimental design for population-scale microbiome studies, and biomarker discovery for human disease. I will conclude with open questions for future work in potentially translating the microbiome in inflammatory conditions such as Crohn's disease and ulcerative colitis. Learning Objectives: - Understand the overview of the human microbiome, including its basic biology, epidemiology, and potential roles in public health. - Identify areas of opportunity for development of the microbiome as a novel therapeutic target, diagnostic or prognostic biomarker, or basic microbial system.


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