TYPES OF T CELL2

TYPES OF T CELL2 - TYPESOFTCELLS

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
TYPES OF T CELLS T cells do not recognize their particular antigen unless it is displayed on the surface of an  antigen-presenting cell (APC). The main APCs are macrophages and dendritic cells. The APC  ingests the antigen, breaks it up into pieces inside the cell, and combines the pieces of antigen  with proteins belonging to the cell. The cellular proteins are components of the major  histocompatibility complex (MHC) proteins. Every individual has his own unique MHC proteins,  which are the part of the cell that the immune system recognizes as self (or nonself, in the case of  transplanted tissues). They are displayed on the outside of the plasma membrane of all nucleated  cells of the body, (which means that red blood cells do not have them).       1. H ELPER  T  CELLS ---these are of major importance to the immune response. By releasing  cytokines, they:
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 2

TYPES OF T CELL2 - TYPESOFTCELLS

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online