Lecture

T-Cell Responses: Activation and Differentiation

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In course

BIO-310: Immunology

Ce cours décrit le fonctionnement du système immunitaire humain et les bases immunologiques de la vaccination, de la transplantation, de l'immunothérapie, et de l'allergie. Il présente aussi le rôle des cellules souches dans la formation des tissus, notamm ...

Description

This lecture covers the intracellular immune responses mediated by T cells, including their role in assisting B cells, eliminating germs, and defending the body. It explains the phases of T-cell responses, from activation by antigens to proliferation, differentiation, and becoming effector or memory T cells.

In MOOC

Introduction to immunology (part 1)

Instructors (2)

Bruno Lemaitre

Personal Webpage http://brunolemaitre.ch Personal Webpage http://brunolemaitre.ch Teaching & PhD PhD Students Blandine Ribotta, Yao Tian, Désirée Popelka, Prince Kumar Sah, Siqi Wang, Kenan Krakovic, Nathan Alexandre Klotz Past EPFL PhD Students Sveta Chakrabarti, Olivier Binggeli, Jeremy Keith Herren, Juan Camilo Paredes Escobar, Alfred Chng, Maroun Bou Sleiman, Jan Paul Dudzic, Mario Gonzalo Garcia Arraez, Claudia Melcarne, Alice Marra, Bianca Marie Petrignani, Mark Austin Hanson, Alexia Laurie Carboni

David Michael Suter

Teaching & PhD PhD Students Ekaterina Lyublinskaya, Yuliia Romaniuk, Joanna Agnieszka Dembska, Solomon Nshemereirwe Past EPFL PhD Students Onur Tidin, Aleksandra Mandic, Daniel Strebinger, Andrea Brigitta Alber, Mahé Raccaud, Torgil Elias Friman, Shoujie Sun, Silja Michelle Placzek, Romane Mizeret, Benjamin Martin, Sim Sakong, Stella Katharina Krämer Past EPFL PhD Students as codirector Damien Lionel Nicolas, Isabelle Chareyron, Christopher Tadhg James Wall, Kolly Dominique Courses Immunology BI

Official source

Ontological neighbourhood

Health sciences

Immunology: Immune system

Related concepts (28)

T helper cell

The T helper cells (Th cells), also known as CD4+ cells or CD4-positive cells, are a type of T cell that play an important role in the adaptive immune system. They aid the activity of other immune cells by releasing cytokines. They are considered essential in B cell antibody class switching, breaking cross-tolerance in dendritic cells, in the activation and growth of cytotoxic T cells, and in maximizing bactericidal activity of phagocytes such as macrophages and neutrophils.

Immune system

The immune system is a network of biological processes that protects an organism from diseases. It detects and responds to a wide variety of pathogens, from viruses to parasitic worms, as well as cancer cells and objects such as wood splinters, distinguishing them from the organism's own healthy tissue. Many species have two major subsystems of the immune system. The innate immune system provides a preconfigured response to broad groups of situations and stimuli.

Adaptive immune system

The adaptive immune system, also known as the acquired immune system, or specific immune system is a subsystem of the immune system that is composed of specialized, systemic cells and processes that eliminate pathogens or prevent their growth. The acquired immune system is one of the two main immunity strategies found in vertebrates (the other being the innate immune system). Like the innate system, the adaptive immune system includes both humoral immunity components and cell-mediated immunity components and destroys invading pathogens.

Innate immune system

The innate, or nonspecific, immune system is one of the two main immunity strategies (the other being the adaptive immune system) in vertebrates. The innate immune system is an alternate defense strategy and is the dominant immune system response found in plants, fungi, insects, and primitive multicellular organisms (see Beyond vertebrates).

Antigen presentation

Antigen presentation is a vital immune process that is essential for T cell immune response triggering. Because T cells recognize only fragmented antigens displayed on cell surfaces, antigen processing must occur before the antigen fragment, now bound to the major histocompatibility complex (MHC), is transported to the surface of the cell, a process known as presentation, where it can be recognized by a T-cell receptor. If there has been an infection with viruses or bacteria, the cell will present an endogenous or exogenous peptide fragment derived from the antigen by MHC molecules.

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