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Ruslan Medzhitov, PhD

Sterling Professor of Immunobiology
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Additional Titles

Investigator, Howard Hughes Medical Institute

About

Titles

Sterling Professor of Immunobiology

Investigator, Howard Hughes Medical Institute

Biography

Medzhitov laboratory studies biology of inflammation, mechanisms of homoeostasis, allergic immunity and mechanisms of diseases.

Appointments

Education & Training

PhD
Moscow State University (1993)

Research

Overview

Host-Pathogen interactions

The disease state caused by microbial infection is a result of either microbial virulence or immunopathology (the host response to infection), or in some cases both. Thus immune sensing and responsiveness to infection are adjusted during evolution to achieve an optimal balance to maximize protection from infection, and to minimize the pathology caused by an overzealous immune response. This balance can presumably vary depending on infection. We are interested in studying the mechanisms (both hard-wired and adaptive) that allow for an optimal trade-off between these two conflicting goals. We are interested in understanding the role avoidance, resistance and tolerance as defense strategies.

Inflammation

Inflammation is a fundamental physiological process that underlies a multitude of normal and pathological conditions. We are studying both the basic biology of inflammation and the regulatory mechanisms that control initiation, quality and intensity of inflammatory responses. In particular, we are studying the links between inflammation and metabolism, inflammation and aging, and inflammation and cancer.

Control of adaptive immunity

Innate immune recognition plays a critical role in the control of adaptive immune responses. Multiple mechanisms underlie the connections between innate and adaptive immune systems, and most of them are poorly understood. We are studying basic mechanisms that couple innate immune recognition with activation and differentiation of adaptive immune responses. We are also studying the links between innate immune system and peripheral tolerance.

Control of gene expression

Stimulation of macrophages through TLRs leads to changes in the expression (induction and suppression) of hundreds of genes. These changes are effected through a diversity of mechanisms. Gene regulation occurs at multiple levels (activation of trasnscription factors, chromatin remodeling and histone modifications) and has both signal-specific and gene-specific components. Different subsets of TLR-inducible genes are subject to differential regulatory influences, which are dependent on the function of the products they encode. We are interested in the basic principles of inducible gene expression, which are currently poorly characterized.

Macrophage biology

We are studying the role of macrophages in maintenance of homeostasis and in physiological inflammation.

Medical Subject Headings (MeSH)

Adaptive Immunity; Allergy and Immunology; Gene Expression; Host-Pathogen Interactions; Immunity; Inflammation; Macrophages

Research at a Glance

Yale Co-Authors

Frequent collaborators of Ruslan Medzhitov's published research.

Publications

2024

2023

2006

Academic Achievements & Community Involvement

  • honor

    Elected

Get In Touch

Contacts

Academic Office Number
Mailing Address

Immunobiology

PO Box 208011, 300 Cedar Street

New Haven, CT 06520

United States