CD Markers
CD121


Topic Completed: 1 February 2002

Minor changes: 9 October 2020

Copyright: 2002-2021, PathologyOutlines.com, Inc.

PubMed Search: CD121a OR CDw121b

Nat Pernick, M.D.
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Table of Contents
CD121a | CDw121b
Cite this page: Pernick N. CD121. PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/cdmarkerscd121.html. Accessed January 15th, 2021.
CD121a
Definition / general
  • Also known as Interleukin 1 receptor (IL-1R) type I, IL1-alpha
  • Interleukin-1, an inflammatory mediator, consists of 2 separate but related proteins, IL1-alpha and IL1-beta

Positive staining - normal
  • T cells, thymocytes, fibroblasts, endothelial cells
CDw121b
Definition / general
  • Also known as Interleukin 1 receptor (IL-1 R) type II, IL1-beta
  • May inhibit IL1 activity by acting as a decoy target for IL1

Positive staining - normal
  • B cells, macrophages
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