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Combined Ribociclib and NU7026 administration enhances radio-sensitivity by inhibiting DNA repair in prostate cancer.
Naunyn Schmiedebergs Arch Pharmacol
December 2024
Department of Urology, Tangdu Hospital, Fourth Military Medical University, No.569 Xinsi Road, Xi'an, 710038, Shaanxi, China.
Radiosensitivity is critical for clinical outcomes and overall survival of prostate cancer patients treated with irradiation. Ribociclib and NU7026 have been reported as radiosensitizers in cancer cells, but which are inadequately understood in prostate cancer cells. The present study was performed to investigate the effects of ribociclib, NU7026, and their combination on the radiosensitivity of prostate cancer cells.
View Article and Find Full Text PDFDNA Damage and Inflammatory Response of p53 Null H358 Non-Small Cell Lung Cancer Cells to X-Ray Exposure Under Chronic Hypoxia.
Int J Mol Sci
November 2024
Department of Radiation Biology, Institute of Aerospace Medicine, German Aerospace Center (DLR), 51147 Cologne, Germany.
Hypoxia-induced radioresistance limits therapeutic success in cancer. In addition, p53 mutations are widespread in tumors including non-small cell lung carcinomas (NSCLCs), and they might modify the radiation response of hypoxic tumor cells. We therefore analyzed the DNA damage and inflammatory response in chronically hypoxic (1% O, 48 h) p53 null H358 NSCLC cells after X-ray exposure.
View Article and Find Full Text PDFDephosphorylation of branched-chain α-keto acid dehydrogenase E1α (BCKDHA) promotes branched-chain amino acid catabolism and renders cancer cells resistant to X-rays by mitigating DNA damage.
Biochem Biophys Res Commun
January 2025
Department of Biochemistry and Molecular Biology, Graduate School of Medical Science, Yamagata University, Japan.
Branched-chain amino acids (BCAAs) facilitate cancer cell proliferation and survival. Stresses, including X-irradiation, increase BCAA uptake. However, the role of BCAA metabolism in cancer cell survival remains unclear.
View Article and Find Full Text PDFDesigning a linear accelerator-based "X irradiation system" for platelet products: an efficient, safe, accessible and cost-effective alternative for conventional X- or gamma irradiators.
Sci Rep
November 2024
Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Iranian Blood Transfusion Organization Building, Next to the Milad Tower, Hemmat Exp. Way, P.O.Box:14665-1157, Tehran, Iran.
X-irradiation of blood products is an alternative for gamma-ray to prevent post-transfusion GvHD. However, commercial X-irradiators are not widely available while little is known about their safety and efficacy for platelet products. This study introduces an efficient, accessible and cost-effective "X irradiation system" for platelet concentrates (PCs).
View Article and Find Full Text PDFEstablishment of acquired radioresistant cells to fractionated radiation from hTERT-immortalized normal human epithelial cell.
Radiat Prot Dosimetry
November 2024
Pathology Informatics Team, RIKEN Center for Advance Intelligence Project, 1-4-1 Nihonbashi Chuo-ku, Tokyo 103-0027, Japan.
Senescence-like growth arrest (SLGA), which is a radiation-induced cell death pathway, is induced in immortalized normal human epithelial cell (hTERT-RPE1) by the daily fractionated X-irradiation with 1.5 Gy within 30 times. We here demonstrate that pre-treatment induces acquired radioresistance (ARR) that can survive from the lethal fractionated radiation.
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