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BNIP3 contributes to silibinin-induced DNA double strand breaks in glioma cells via inhibition of mTOR
In this study, we find that silibinin triggers DNA DSBs, ROS accumulation and expressional upregulation of BNIP3 in glioma cells. Mitigation of ROS with antioxidant GSH significantly inhibits silibinin-induced DNA DSBs and glioma cell death. Then, we find knockdown of BNIP3 with SiRNA obviously prevents silibinin-induced DNA DSBs and ROS accumulation. Mechanistically, BNIP3 knockdown not only reverses silibinin-triggered depletion of cysteine and GSH via maintaining xCT level, but also abrogates catalase decrease. Notably, silibinin-induced dephosphorylation of mTOR is also prevented when BNIP3 is knocked down. Given that ...
Source: Biochemical and Biophysical Research communications - December 9, 2021 Category: Biochemistry Authors: Cong Hua Xuanzhong Wang Shipeng Liang Xi Chen Chen Li Guangqiang You Chongcheng Wang Tianfei Luo Zhenchuan Wang Pengfei Ge Source Type: research

Auranofin, an Anti-rheumatic Gold Drug, Aggravates the Radiation-Induced Acute Intestinal Injury in Mice
Conclusion In this study, we found that a non-toxic dose of auranofin significantly aggravated the severity of the radiation-induced intestinal injury. This suggests that auranofin treatment can be an independent factor that influences the risk of intestinal complications after pelvic or abdominal radiotherapy. Ethics Statement All the protocols used in this study were approved by the Institutional Animal Care and Use Committee of the Korean Institute of Radiological and Medical Sciences (IACUC permit number: KIRAMS217-0007). Author Contributions H-JL, JS, and Y-BL designed the experiments. EL and JK conducted the exp...
Source: Frontiers in Pharmacology - April 23, 2019 Category: Drugs & Pharmacology Source Type: research

Myeloid Derived Suppressor Cells Interactions With Natural Killer Cells and Pro-angiogenic Activities: Roles in Tumor Progression
Conclusions MDSC are major players in the immunosuppressive scenario in cancer, thanks to their phenotype heterogeneity and critical interaction with several innate immune cells, thus representing a crucial target in oncology. Here we reviewed the interactions of MDSCs with NK cells. The contribution of key cytokines, chemokines and mediators active in this process have been discussed. We also described the contribution of MDSC on angiogenesis directly or indirectly through interactions with NK and immunosuppressive activities. A parallel of the cancer associated to the decidual counterpart of these cells is discussed, a...
Source: Frontiers in Immunology - April 17, 2019 Category: Allergy & Immunology Source Type: research

ROS-p53-cyclophilin-D signaling mediates salinomycin-induced glioma cell necrosis
Conclusions: Thus, salinomycin mainly induces programmed necrosis in cultured glioma cells.
Source: Epidemiologic Perspectives and Innovations - May 29, 2015 Category: Epidemiology Authors: Li-sen QinPi-feng JiaZhi-qing ZhangShi-ming Zhang Source Type: research