Ataxia-telangiectasia mutated (ATM) was first discovered in patients with AT (ataxia telangiectasia), which is characteristic with cerebellar degeneration, immunodeficiency, being susceptible to malignant tumors and sensitive to radiation. ATM kinase could detect DNA double-strand breaks and play a vital role in the DNA damage response. Inhibiting the function of ATM could sensitize tumor cells to both ionizing radiation (IR) and chemotherapy, as well as improve the chemoresistance and radioresistance observed in some patients. As such, ATM is a novel and important target for the cancer therapy. We reviewed ATM inhibitors reported in the last two decades, focusing on their development process, structure-activity relationships, inhibitory efficacy, pharmacokinetics and pharmacodynamics characteristics in the preclinical and clinical studies. We summarized the clinical value of ATM inhibitors in tumors and some neurodegenerative diseases, as well as the main challenges to the development of the drugs, providing directions and references for the future development of ATM inhibitors.
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http://dx.doi.org/10.1016/j.ejmech.2024.116781 | DOI Listing |
BJUI Compass
January 2025
Division of Medical Oncology A Policlinico Umberto I Rome Italy.
Background: We present a systematic review and meta-analysis of randomized clinical trials (RCTs) with PARPi either as monotherapy or in combination with an androgen receptor-targeted agent (ARTA) in first- and second-line settings.
Methods: Primary endpoints are radiographic progression free survival (rPFS) and overall survival (OS) in patients with mCRPC and either unselected, homologous recombination repair wild-type (HRR-), homologous recombination repair mutated (HRR+) or with BRCA1, BRCA2, or ATM mutation. The effect of PARPi + ARTA in the second-line setting is also explored.
Mech Ageing Dev
January 2025
Department of Biological Science, College of Natural Science, Chosun University, 309 Pilmun-daero, Dong-gu, Gwangju 61452, Republic of Korea; BK21 FOUR Education Research Group for Age-Associated Disorder Control Technology, Department of Integrative Biological Science, Chosun University, Gwangju 61452, Republic of Korea; The Basic Science Institute of Chosun University, Chosun University, Gwangju 61452, Republic of Korea. Electronic address:
The protective effects of mangiferin (MAG) against etoposide- and high glucose (HG)-induced DNA damage and aging were investigated in human bone marrow-mesenchymal stem cells (hBM-MSCs). Etoposide, a topoisomerase II inhibitor, was used to induce double-strand breaks (DSBs) in hBM-MSCs, resulting in increased genotoxicity, elevated levels of the DNA damage sensor ATM and CDKN1A, and decreased levels of the aging markers H3 and H4. MAG activated AMPK and SIRT1, thus protecting against DSB-induced damage.
View Article and Find Full Text PDFMol Divers
January 2025
Department of Chemistry, National Institute of Technology Calicut, Kozhikode, 673601, Kerala, India.
Quinoline is a highly privileged scaffold with significant pharmacological potential. Introducing a carbonyl group into the quinoline ring generates a quinolone ring, which exhibits promising biological properties. Incorporating a carboxamide linkage at different positions within the quinoline and quinolone frameworks has proven an effective strategy for enhancing pharmacological properties, particularly anticancer potency.
View Article and Find Full Text PDFInt J Gynecol Pathol
January 2025
Department of Pathology and Immunology, Washington University.
High-grade serous carcinomas (HGSCs) with homologous recombination deficiency (HRD) respond favorably to platinum therapy and poly ADP ribose polymerase (PARP) inhibitors. Mutations in BRCA1 and BRCA2 commonly cause HRD and have been associated with Solid, pseudoEndometrioid, and Transitional-like (SET-like) histology. Mutations in other homologous recombination repair (HRR) genes as well as epigenetic changes can also result in HRD; however, morphologic correlates have not been well-explored in these cases.
View Article and Find Full Text PDFGenes (Basel)
January 2025
Department of Biology and Biotechnology "L. Spallanzani", University of Pavia, Via Ferrata 9, 27100 Pavia, Italy.
DNA damage response (DDR) is a highly conserved and complex signal transduction network required for preserving genome integrity. DNA repair pathways downstream of DDR include the tyrosyl-DNA phosphodiesterase1 (TDP1) enzyme that hydrolyses the phosphodiester bond between the tyrosine residue of topoisomerase I (TopI) and 3'-phosphate end of DNA. A small TDP1 subfamily, composed of TDP1α and TDP1β, is present in plants.
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