dna damage repair mechanism

GeA-69 (GeA69) is a selective and allosteric PARP14 macrodomain 2 (MD2) inhibitor (Kd: 0.86 μM in ITC assays).

MOMA-341 is a highly selective inhibitor targeting the Werner RecQ-like helicase (WRN). It exerts a dual mechanism of allosteric regulation and ATP competitive inhibition by binding to the cysteine 727 site of the WRN protein. In mouse models with mismatch repair deficiency (dMMR) or high microsatellite instability (MSI-H), MOMA-341 can induce DNA damage, cell apoptosis, and promote tumor shrinkage. This compound exhibits significant anti-tumor activity and has potential application prospects in the study of advanced and metastatic solid tumors.

Amuvatinib hydrochloride (MP470 hydrochloride) is an orally administered multi-targeted tyrosine kinase inhibitor effective against mutant forms of c-Kit, PDGFRα, Flt3, c-Met, and c-Ret, and it suppresses DNA repair by inhibiting the RAD51 protein, contributing to its antineoplastic activity[1][2][3][4].

5'-Deoxyadenosine (5′-dAdo) is an oxidized nucleoside found in the urine of normal subjects. Oxidized nucleosides represent excellent biomarkers for determining the extent of damage in genetic material, which has long been of interest in understanding the mechanism of aging, neurodegenerative diseases, and carcinogenesis. The normal form of deoxyadenosine used in DNA synthesis and repair is 2'-deoxyadenosine where the hydroxyl group (-OH) is at the 2' position of its ribose sugar moiety. 5'-deoxyadenosine has its hydroxyl group at the 5' position of the ribose sugar.