human leukocyte antigen

noun

Definition of human leukocyte antigen

: any of various proteins that are encoded by genes of the major histocompatibility complex in humans and are found on the surface of many cell types (such as white blood cells) broadly : hla sense 2

Examples of human leukocyte antigen in a Sentence

Recent Examples on the Web In addition to genetic variants of the ACE2 receptor, scientists want to see whether differences in the human leukocyte antigen genes, which influence the immune system’s response to viruses and bacteria, affect disease severity. Jocelyn Kaiser, Science | AAAS, "How sick will the coronavirus make you? The answer may be in your genes," 27 Mar. 2020 Everyone has a human leukocyte antigen (HLA), a gene complex that is related to the immune system that, among other functions, regulates the kind of bacteria that is found on the surface of the skin. Elizabeth King, Allure, "Why Mosquitos Bite Some People More Than Others," 8 Aug. 2019 Lacking antibodies from vaccines or earlier infections, the human immune system relies on T cells, which attack foreign proteins, and human leukocyte antigens (HLAs) which bind to short pieces of viral proteins. Quanta Magazine, "Decoding Flu Viruses Before an Outbreak," 29 Aug. 2013 Donors must be prepared to undergo extensive medical and psychological screenings, including a check for the human leukocyte antigen HLA, which plays a role in the body’s immune response to foreign substances. Deanese Williams-harris, chicagotribune.com, "People are using social media to improve their odds of finding organ donors: 'Doing it can save my life'," 6 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'human leukocyte antigen.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of human leukocyte antigen

1978, in the meaning defined above

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The first known use of human leukocyte antigen was in 1978

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Cite this Entry

“Human leukocyte antigen.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/human%20leukocyte%20antigen. Accessed 19 Oct. 2020.

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More Definitions for human leukocyte antigen

human leukocyte antigen

noun

Medical Definition of human leukocyte antigen

: any of various proteins that are encoded by genes of the major histocompatibility complex in humans and are found on the surface of many cell types (as white blood cells) broadly : hla sense 2

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