RRC ID 44395
Author Yasuda S, Sho M, Yamato I, Yoshiji H, Wakatsuki K, Nishiwada S, Yagita H, Nakajima Y.
Title Simultaneous blockade of programmed death 1 and vascular endothelial growth factor receptor 2 (VEGFR2) induces synergistic anti-tumour effect in vivo.
Journal Clin Exp Immunol
Abstract Recent basic and clinical studies have shown that the programmed death ligand (PD-L)/PD-1 pathway has a significant role in tumour immunity, and its blockade has a therapeutic potential against several human cancers. We hypothesized that anti-angiogeneic treatment might augment the efficacy of PD-1 blockade. To this end, we evaluated combining the blockade of PD-1 and vascular endothelial growth factor receptor 2 (VEGFR2) in a murine cancer model using Colon-26 adenocarcinoma. Interestingly, simultaneous treatment with anti-PD-1 and anti-VEGFR2 monoclonal antibodies (mAbs) inhibited tumour growth synergistically in vivo without overt toxicity. Blocking VEGFR2 inhibited tumour neovascularization significantly, as demonstrated by the reduced number of microvessels, while PD-1 blockade had no impact on tumour angiogenesis. PD-1 blockade might promote T cell infiltration into tumours and significantly enhanced local immune activation, as shown by the up-regulation of several proinflammatory cytokine expressions. Importantly, VEGFR2 blockade did not interfere with T cell infiltration and immunological activation induced by PD-1 blockade. In conclusion, simultaneous blockade of PD-1 and VEGFR2 induced a synergistic in-vivo anti-tumour effect, possibly through different mechanisms that might not be mutually exclusive. This unique therapeutic strategy may hold significant promise for future clinical application.
Volume 172(3)
Pages 500-6
Published 2013-6-1
DOI 10.1111/cei.12069
PMID 23600839
PMC PMC3646450
MeSH Adenocarcinoma / blood supply Adenocarcinoma / immunology Adenocarcinoma / therapy Angiogenesis Inhibitors / administration & dosage Animals Antibodies, Monoclonal / administration & dosage Cell Line, Tumor Colonic Neoplasms / blood supply Colonic Neoplasms / immunology Colonic Neoplasms / therapy Drug Synergism Female Humans Lymphocytes, Tumor-Infiltrating / immunology Mice Mice, Inbred BALB C Neoplasms, Experimental / blood supply Neoplasms, Experimental / immunology Neoplasms, Experimental / therapy* Neovascularization, Pathologic / prevention & control Programmed Cell Death 1 Receptor / antagonists & inhibitors* Programmed Cell Death 1 Receptor / immunology Vascular Endothelial Growth Factor Receptor-2 / antagonists & inhibitors* Vascular Endothelial Growth Factor Receptor-2 / immunology
IF 3.532
Times Cited 89
WOS Category IMMUNOLOGY
Altmetric score
オルトメトリクス指標項目
The most frequently cited source Patent(IFI CLAIMS)
Total number of mentions 57
Altmetric score changes over past 6months 3.0
Resource
Human and Animal Cells Colon-26(RCB2657)