cb-1158

Numidargistat dihydrochloride (CB-1158 dihydrochloride) 是一种具有口服活性和高效性的精氨酸酶 ( ARG1 ) 抑制剂，是一种免疫肿瘤剂，通过减少晶状体上皮细胞 （LEC) 的增殖和降低纤连蛋白、α-SMA、胶原蛋白 1A1 和波形蛋白的表达来抑制 TGF-β2 诱导的前囊下白内障。

CB-1158 is a potent and orally bioavailable inhibitor of arginase (IC50s: 86 and 296 nM for recombinant human arginase 1 and 2).

BRN-103 was found to suppress the VEGF-induced phosphorylation of VEGF receptor 2 (VEGR2) and the activations of AKT and eNOS. Taken together, these results suggest that BRN-103 inhibits VEGF-mediated angiogenesis signaling in human endothelial cells.

CB-1158-analog, also known as Numidargistat-analog and INCB01158-analog, is a potent and orally active arginase inhibitor with IC50=89 nM) . CB-1158 blocked myeloid cell-mediated suppression of T cell proliferation in vitro and reduced tumor growth in multiple mouse models of cancer, as a single agent and in combination with checkpoint blockade, adoptive T cell therapy, adoptive NK cell therapy, and the chemotherapy agent gemcitabine. CB-1158 increased tumor-infiltrating CD8+ T cells and NK cells, inflammatory cytokines, and expression of interferon-inducible genes. CB-1158 may be potentially useful in renal cell cancer, breast cancer, non-small cell lung cancer, acute myeloid leukemia, and other tumor types where arginase-secreting MDSCs are known to play an immunosuppressive role. (see ADDITIONAL INFORMATION in this web page for CB-1158 structure confusion).