an antibody that an organism produces against any of its own tissues, cells, or cell components.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use autoantibody in a sentence
These preexisting autoantibodies, likely created by previous infections, were still lurking around and appeared to be mistakenly attacking other immune cells.
When Aaron Ring began testing blood samples collected from covid-19 patients who had come through Yale–New Haven Hospital last March and April, he expected to see a type of immune cell known as an autoantibody in at least some of them.
Ring’s autoantibody tests showed that in some patients—even some with mild cases of covid—the rogue immune cells were marking blood cells for attack.
The original version of this story misstated the definition of autoantibodies.Scientists Have Uncovered the Likely Cause of a Serious COVID-19 Symptom: Blood Clotting | Alice Park | November 5, 2020 | Time
However, they were tested during infection for autoantibodies found in a variety of disorders.COVID-19 Causes Some Patients’ Immune Systems To Attack Their Own Bodies, Which May Contribute To Severe Illness | LGBTQ-Editor | October 27, 2020 | No Straight News
British Dictionary definitions for autoantibody
an antibody reacting with an antigen that is a part of the organism in which the antibody is formed
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for autoantibody
An antibody that reacts with the cells, tissues, or native proteins of the individual in which it is produced. Autoimmune diseases are caused by the presence of autoantibodies.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.