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autoantibody

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au⋅to⋅an⋅ti⋅bod⋅y

[aw-toh-an-ti-bod-ee, -an-tee-]
–noun, plural -bod⋅ies. Immunology.
an antibody that an organism produces against any of its own tissues, cells, or cell components.

Origin:
1905–10; auto- 1 + antibody
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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au·to·an·ti·bod·y   (ô'tō-ān'tĭ-bŏd'ē)   
n.  An antibody that reacts with the cells, tissues, or native proteins of the individual in which it is produced.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: au·to·an·ti·body
Pronunciation: "ot-(")O-'ant-i-"bäd-E
Function: noun
Inflected Form: plural -bod·ies
: an antibody active against a tissue constituent of the individual producing it
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

autoantibody au·to·an·ti·bod·y (ô'tō-ān'tĭ-bŏd'ē)
n.
An antibody that attacks the cells and tissues of the organism in which it was formed.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia

autoantibody

harmful antibody that attacks components of the body called self antigens. Normally autoantibodies are routinely eliminated by the immune system's self-regulatory process-probably through the neutralization of autoantibody-producing lymphocytes before they mature. At times this process fails, and antibodies that react to self constituents proliferate.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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