Programmed Death 1 (PD-1) is a member of the CD28/CTLA-4 family of T-cell regulators, expressed as a co-receptor on the surface of activated T-cells, B-cells, and macrophages. New studies have suggested that the PD-1/PD-L1 signaling pathway may be linked to anti-tumor immunity, as PD-L1 has been shown to induce apoptosis of activated T cells or inhibit activity of cytotoxic T cells. In comparison to CD10 and Bcl-6, PD-1 is expressed by fewer B cells and has therefore been considered a more specific and useful diagnostic marker for angioimmunoblastic T-cell lymphoma. Therapies targeted toward the PD-1 receptor have shown remarkable clinical responses in patients with various types of cancer, including non–small-cell lung cancer, melanoma, and renal-cell cancer.



  • Available Formats:

    0.1 ml Concentrate - IHC001-100

    1.0 ml Concentrate - IHC001-1

    7.0 ml Pre-Dilute - IHC001-7




    Source Mouse Monoclonal
    Positive Control Tonsil, Lymph Node
    Dilution Range 1:50-1:200


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    5. Mataki N, et al. Am J Gastroenterol. 2007; 102:302-12.
    6. Kim JW, et al. Oncology (Williston Park). 2014; 28:15-28.
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    8. D’Incecco A, et al. Br J Cancer. 2015; 112:95-102.
    9. Tykodi SS. Onco Targets Ther. 2014; 7:1349-59.

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