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Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Onco+Targets+Ther 2017 ; 10 (ä): 2349-63 Nephropedia Template TP
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Immune checkpoint blockade: the role of PD-1-PD-L axis in lymphoid malignancies #MMPMID28496333
Ilcus C; Bagacean C; Tempescul A; Popescu C; Parvu A; Cenariu M; Bocsan C; Zdrenghea M
Onco Targets Ther 2017[]; 10 (ä): 2349-63 PMID28496333show ga
The co-inhibitory receptor programmed cell death (PD)-1, expressed by immune effector cells, is credited with a protective role for normal tissue during immune responses, by limiting the extent of effector activation. Its presently known ligands, programmed death ligands (PD-Ls) 1 and 2, are expressed by a variety of cells including cancer cells, suggesting a role for these molecules as an immune evasion mechanism. Blocking of the PD-1-PD-L signaling axis has recently been shown to be effective and was clinically approved in relapsed/refractory tumors such as malignant melanoma and lung cancer, but also classical Hodgkin?s lymphoma. A plethora of trials exploring PD-1 blockade in cancer are ongoing. Here, we review the role of PD-1 signaling in lymphoid malignancies, and the latest results of trials investigating PD-1 or PD-L1 blocking agents in this group of diseases. Early phase studies proved very promising, leading to the clinical approval of a PD-1 blocking agent in Hodgkin?s lymphoma, and Phase III clinical studies are either planned or ongoing in most lymphoid malignancies.