Summary

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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Licensing

	This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code. Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
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Original upload log

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• File:T_cell_activation.png licensed with PD-USGov, PD-user
  • 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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