RP6685
/ Repare Therap
- LARVOL DELTA
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July 01, 2025
Polymerase Ѳ inhibitors combinations with approved and investigational agents in patient-derived tumor multi-cell type (mct) spheroids.
(PubMed, Exp Mol Pathol)
- "The potential of novobiocin, recently identified to be a DNA POLѲ inhibitor, to augment cancer chemotherapy was explored in the late 1980s and early 1990s in tumor cells, tumor-bearing mice and in Phase 1 clinical trial in combination with cyclophosphamide or cisplatin...In simultaneous combination with ART-558, talazoparib produced greater-than-additive cytotoxicity at the highest concentrations of the POLѲ inhibitors in the 922,993-354-T-J3-PDC endometrial serous carcinoma mct-spheroids. Activity of the Chk1/2 inhibitor prexasertib was potentiated by either ART-558 or RP6685 in the 922,993-354-T-J3 mct-spheroids...Regions of potentiation were evident in the 922,993-354-T-J3-PDC endometrial carcinoma survival surface plots at the highest concentration of paclitaxel tested, while regions of potentiation were evident in the paclitaxel mid-concentrations of the 299,254-011-R-J1-PDC melanoma mct-spheroids survival surface plots as determined by the Bliss independence..."
Journal • Endometrial Cancer • Endometrial Serous Adenocarcinoma • Endometrial Serous Carcinoma • Melanoma • Oncology • Solid Tumor • BRCA • LIG3 • MSI • PALB2 • PARP1 • XRCC1
March 06, 2024
Polymerase θ (POLθ) inhibitors (novobiocin, ART-558, RP6685) were tested with 22 approved and investigational agents in multi-cell type spheroids of genetically selected patient-derived human tumor cell lines
(AACR 2024)
- "The potential of novobiocin to augment cancer chemotherapy was explored in the late 1980s and early 1990s in tumor cells and tumor-bearing mice and in Phase 1 clinical trials with cyclophosphamide or cisplatin...Potentiation of the topoisomerase II inhibitors doxorubicin (DOX) and etoposide by the POLθ inhibitors ART-558 or RP6685 was observed in spheroids grown from the serous endometrial adenocarcinoma 922993-354-T-J3, which has ATM and BRCA2 variants...Activity of the Chk1/2 inhibitor prexasertib was potentiated by either ART-558 or RP6685 in the 922993-354-T-J3 complex spheroids...KRAS G12D inhibitor MRTX-133 cytotoxicity against 186277-243-T-J2 colon adenocarcinoma with the KRAS G12D variant was potentiated by either ART-558 or RP6685. Potential combinations to advance into in vivo studies will be presented."
Late-breaking abstract • Preclinical • Tumor cell • Colon Cancer • Colorectal Adenocarcinoma • Colorectal Cancer • Endometrial Adenocarcinoma • Endometrial Cancer • Gastrointestinal Cancer • Oncology • Solid Tumor • BRCA • BRCA2 • KRAS • LIG3 • PALB2 • POLQ • XRCC1
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