rad51 in 3

RAD51-IN-3, a Rad51 inhibitor, is chemically identified as (8aR,9R)-11'-chloro-6',8'-dihydroxy-2H,2'H-[3,8'-bi-1H-benzo[f]indene]-1,3,5',7'(4H,6H)-tetraone.

PARP1 BRD4-IN-3 (compound HF4) is an effective inhibitor of BRD4 and PARP1, with IC50 values of 1210 nM and 2019 nM respectively. The compound exhibits antiproliferative activity, induces apoptosis (apoptosis) and cell cycle arrest at the G0 G1 phase. Additionally, PARP1 BRD4-IN-3 causes DNA damage and reduces the expression of the Rad51 protein, demonstrating anti-tumor activity.

Halenaquinone is a phosphatidylinositol 3-kinase inhibitor. Halenaquinone specifically inhibits the secondary DNA binding of RAD51. Halenaquinone inhibits RANKL-induced osteoclastogenesis. Halenaquinone induces apoptosis in PC12 cells.

Phosphoramide mustard cyclohexanamine is the active metabolite of cyclophosphamide, an alkylating agent that cross-links DNA strands, organizes cell division and causes cell death, and has antitumor activity.

CAY10760 is an inhibitor of the protein-protein interaction between RAD51 recombinase and BRCA2 (EC50= 19 μM in a cell-free competitive ELISA).1It decreases homologous recombination by 54% in wild-typeBRCA2-expressing BxPC-3 pancreatic cancer cells when used at a concentration of 20 μM. CAY10760 (20 μM) decreases proliferation of BxPC-3, as well as mutantBRCA2-expressing Capan-1, cancer cells when used alone or in combination with the poly(ADP-ribose) polymerase (PARP) inhibitor olaparib . 1.Bagnolini, G., Milano, D., Manerba, M., et al.Synthetic lethality in pancreatic cancer: Discovery of a new RAD51-BRCA2 small molecule disruptor that inhibits homologous recombination and synergizes with olaparibJ. Med. Chem.63(5)2588-2619(2020)