DescriptionT cell activation.svg	The T lymphocyte activation pathway is triggered when a T cell encounters its cognate antigen, coupled to a MHC molecule, on the surface of an infected cell or a phagocyte. T cells contribute to immune defenses in two major ways: some direct and regulate immune responses; others directly attack infected or cancerous cells.
Date	28 January 2012, 00:51 (UTC)
Source	This file was derived from: T cell activation.png:
Author	T_cell_activation.png: Template drawing and caption text from "The Immune System", any modifcations, made by myself are released into the public domain. derivative work: Rehua (talk)
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  • 2007-03-13T21:42:49Z DO11.10 686x1038 (237918 Bytes) {{Information| |Description= The T lymphocyte activation pathway is triggered when a T cell encounters its cognate antigen, coupled to an MHC molecule, on the surface of an infected cell or a phagocyte. T cells contribute to

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