Anti-Mouse CD25 Alexa Fluor® 700

Description: The PC61.5 antibody reacts with mouse CD25, the 55 kDa interleukin-2 receptor α chain (IL-2Rα). CD25 is expressed by early progenitors of the T and B lineage as well as by activated mature T and B lymphocytes. By itself, CD25 binds IL-2 only with low affinity. However, CD25 associates with CD122 (IL-2 receptor beta chain) and CD132 (common γ chain) to form the high affinity IL-2 receptor. Binding of IL-2 to both the high and low affinity classes of IL-2 receptor is inhibited by the PC61.5 antibody. CD25 plays a role in lymphocyte differentiation and activation/proliferation.

References: Tuve S, Chen BM, Liu Y, Cheng TL, Touré P, Sow PS, Feng Q, Kiviat N, Strauss R, Ni S, Li ZY, Roffler SR, Lieber A. Combination of tumor site-located CTL-associated antigen-4 blockade and systemic regulatory T-cell depletion induces tumor-destructive immune responses. Cancer Res. 2007 Jun 15;67(12):5929-39. (PC61.5, in vivo depletion, PubMed)

Huang B, Zhao J, Shen S, Li H, He KL, Shen GX, Mayer L, Unkeless J, Li D, Yuan Y, Zhang GM, Xiong H, Feng ZH. Listeria monocytogenes promotes tumor growth via tumor cell toll-like receptor 2 signaling. Cancer Res. 2007 May 1;67(9):4346-52. (PC61.5, in vivo depletion, PubMed)

Hayashi T, Hasegawa K, Adachi C. Elimination of CD4+CD25+ T cell accelerates the development of glomerulonephritis during the preactive phase in autoimmune-prone female NZB × NZW F1 mice. Int J Exp Pathol. 2005 Oct;86(5):289-96. (PC61.5, in vivo depletion, PubMed)

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Lowenthal JW, Tougne C, MacDonald HR, Smith KA, Nabholz M. Antigenic stimulation regulates the expression of IL 2 receptors in a cytolytic T lymphocyte clone. J Immunol. 1985 Feb;134(2):931-9.