- |||||||||| Journal: Lactate protects against oxidative stress-induced retinal degeneration by activating autophagy. (Pubmed Central) - Dec 10, 2022
In contrast, application of 3-methyladenine, an inhibitor of autophagy, effectively weakened the protective effect of lactate against oxidative stress in vivo and in vitro. Taken together, all data in this study indicate that lactate protects against oxidative stress-induced retinal degeneration and preserves mitochondrial function by activating autophagy.
- |||||||||| Journal: Autophagy Inhibition Signals through Senescence to Promote Tumor Suppression. (Pubmed Central) - Dec 7, 2022
The altered SASP had increased potent activity to induce paracrine senescence of neighboring GBM cells, to skew macrophage polarization toward the anti-tumor M1 state, and to block the recruitment of pro-tumor neutrophils to GBM tumor tissues. Taken together, this study reveals novel functional communication between autophagy and senescence and suggests cancer therapeutic approaches harnessing autophagy blockage in inducing senescence-mediated antitumor immunity.
- |||||||||| sirolimus / Generic mfg., disulfiram / Generic mfg.
Journal: ATG5-Mediated Autophagy May Inhibit Pyroptosis to Ameliorate Oleic Acid-Induced Hepatocyte Steatosis. (Pubmed Central) - Dec 7, 2022 Inversely, treatment with pyroptotic agonist Nigericin aggravated OA-induced hepatic steatosis, while pyroptosis antagonist disulfiram ameliorated this effect...Significantly, overexpression of ATG5 obviously downregulated cleaved caspase-1 expressions without altering the total caspase1 expressions in hepatic cell steatosis. Taken together, our studies strongly demonstrated that the activation of ATG5 inhibits pyroptosis to improve hepatic steatosis and suggest autophagy activation as a potential therapeutic strategy for pyroptosis-mediated MAFLD.
- |||||||||| Journal: TAT-Beclin 1 represses the carcinogenesis of DUSP4-positive PTC by enhancing autophagy. (Pubmed Central) - Dec 7, 2022
Taken together, our studies strongly demonstrated that the activation of ATG5 inhibits pyroptosis to improve hepatic steatosis and suggest autophagy activation as a potential therapeutic strategy for pyroptosis-mediated MAFLD. TAT-Beclin 1, as an autophagic promoter, could repress the carcinogenesis of DUSP4-positive PTC, which implies that the use of TAT-Beclin 1 for the PTC patients' treatment might be determined according to the DUSP4 level in their tumors.
- |||||||||| hydroxychloroquine / Generic mfg.
Journal: Reductive damage induced autophagy inhibition for tumor therapy. (Pubmed Central) - Dec 6, 2022 Among them, hydroxychloroquine is the most commonly used autophagy inhibitor in clinics, but it is severely limited by its high therapeutic dose, significant toxicity, poor reversal efficacy, and nonspecific action...Overall, this study presents a reductive-damage strategy as a promising anti-tumor approach that catalytically inhibits autophagy and activates the intrinsic antioxidant pathways of tumor cells and also shows its potential for the therapy of other autophagy-related diseases. Supplementary material (cellular uptake of PN-CeO, effects of PN-CeO on several common malignant tumor models, viability of HaCaT cells treated with PN-CeO at different concentrations, time-dependent body-weight curves of SCL-1 tumor-bearing nude mice, the biodistribution of Ce element in main tissues and tumors after injection of PN-CeO, measurement of Ce element concentration in urine and feces samples, H&E-stained images of main organs, and measurement of liver and kidney function in mice after different treatment) is available in the online version of this article at 10.1007/s12274-022-5139-z.
- |||||||||| metformin / Generic mfg.
Journal: Metformin regulates autophagy via LGMN to inhibit choriocarcinoma. (Pubmed Central) - Dec 5, 2022 Autophagy inhibitor could depress metformin-induced autophagy and improve cell proliferation and invasion ability dropped by metformin, while autophagy inducer could partially reverse the change of cell proliferation and invasion modulated by combination of metformin and LGMN overexpression. These results indicated that metformin inhibited cell proliferation and invasion ability by inducing autophagy in a LGMN-dependent manner so as to play a role in the treatment of choriocarcinoma.
- |||||||||| Journal: A Time and Place for Inhibiting Autophagy. (Pubmed Central) - Dec 3, 2022
In this issue of Cancer Research, Khayati and colleagues use state-of-the-art genetically engineered mouse models to demonstrate that transient systemic inhibition of autophagy can irreversibly impair the growth of established lung tumors with a good tolerability in normal tissues, suggesting a therapeutic strategy for cancer treatment. See related article by Khayati et al., p. 4429.
- |||||||||| cisplatin / Generic mfg.
Journal: The COPS3-FOXO3 positive feedback loop regulates autophagy to promote cisplatin resistance in osteosarcoma. (Pubmed Central) - Dec 2, 2022 In both COPS3-expressing OS cells and a murine xenograft model, inhibition of autophagy could also overcome resistance to cisplatin. Collectively, our results offer insights into the mechanisms of cisplatin resistance and suggest that targeting COPS3-mediated autophagy is a promising therapeutic strategy for overcoming the cisplatin resistance of OS.Abbreviations: 3-MA: 3-methyladenine; BECN1: beclin 1; ChIP: chromatin immunoprecipitation; CHX: cycloheximide; COPS3/CSN3: COP9 signalosome subunit 3; CQ: chloroquine; DEGs: differentially expressed genes; FOXO3: forkhead box O3; GFP: green fluorescent protein; IC50: 50% inhibitory concentration; LAMP1: lysosomal associated membrane protein 1; MAP1LC3B/LC3B: microtubule associated protein 1 light chain 3 beta; MTOR: mechanistic target of rapamycin kinase; mRFP: monomeric red fluorescent protein; OS: osteosarcoma; PBS: phosphate-buffered saline; qRT-PCR: quantitative real-time PCR; RAB7: RAB7, member RAS oncogene family; RPS6KB1/p70S6K1: ribosomal protein S6 kinase B1; SEM: standard error of the mean; shRNA: short hairpin RNA; siRNA: small interfering RNA; SKP2: S-phase kinase associated protein 2; TEM: transmission electron microscopy; UPS: ubiquitin-proteasome system.
- |||||||||| dexamethasone / Generic mfg.
Journal: Low-dose dexamethasone promotes osteoblast viability by activating autophagy via the SGK1/FOXO3a signaling pathway. (Pubmed Central) - Dec 2, 2022 Knocking down SGK1 before Dex exposure significantly reduced the phosphorylated forkhead box O3a (p-FOXO3a)/FOXO3 ratio, suppressed LC3II and Beclin-1 levels, and increased SQSTM/p62 levels in MC3T3-E1 cells, and these effects were amplified by 3-MA. In conclusion, the results revealed that low-dose GC treatment increased osteoblast viability by activating autophagy via the SGK1/FOXO3a pathway.
- |||||||||| Cotellic (cobimetinib) / Exelixis, Roche, Tecentriq (atezolizumab) / Roche
Enrollment closed, Trial primary completion date, Combination therapy, Checkpoint inhibition, Checkpoint block, Metastases: MEKiAUTO: Study of Combination Therapy With the MEK Inhibitor, Cobimetinib, Immune Checkpoint Blockade, Atezolizumab, and the AUTOphagy Inhibitor, Hydroxychloroquine in KRAS-mutated Advanced Malignancies (clinicaltrials.gov) - Dec 1, 2022 P1/2, N=175, Active, not recruiting, In conclusion, the results revealed that low-dose GC treatment increased osteoblast viability by activating autophagy via the SGK1/FOXO3a pathway. Recruiting --> Active, not recruiting | Trial primary completion date: Sep 2023 --> Jun 2024
- |||||||||| sorafenib / Generic mfg.
Journal: PNO1 inhibits autophagy-mediated ferroptosis by GSH metabolic reprogramming in hepatocellular carcinoma. (Pubmed Central) - Nov 30, 2022 The combination of PNO1 inhibition with drugs causing ferroptosis induction, particularly sorafenib, the first-line drug associated with ferroptosis in liver cancer shows therapeutic promise in vitro and in vivo. Together, our findings indicated that PNO1 protects HCC cells from ferroptotic death through autophagy-mediated GSH metabolic remodeling, and we identified a candidate therapeutic target that may potentiate the effect of ferroptosis-based antitumor therapy.
- |||||||||| methotrexate / Generic mfg.
Journal, IO biomarker: Wenhua Juanbi Recipe Attenuates Rheumatoid Arthritis via Inhibiting miRNA-146a-Mediated Autophagy. (Pubmed Central) - Nov 29, 2022 The model rats were administered WJR or methotrexate (MTX) to assess the therapeutic effect of the drugs...WJR could, therefore, regulate autophagy by influencing the miRNA-146a-mediated PI3K/AKT/mTOR pathway, which induces apoptosis and proliferation of FLS. WJR can inhibit autophagy, apoptosis, and proliferation in a CIA rat model by inhibiting the miRNA-146a-mediated PI3K/AKT/mTOR pathway.
- |||||||||| Journal: A Novel TP53 Gene Mutation Sustains Non-Small Cell Lung Cancer through Mitophagy. (Pubmed Central) - Nov 27, 2022
The pharmaceutical inhibition of autophagy/mitophagy selectively suppresses the cell proliferation of TP53-null or TP53-p.Glu358Val-expressing lung cancer cells. Together, our study characterizes a new TP53 mutation identified from Chinese lung cancer patients and uncovers its roles in regulating mitophagy, providing a new insight into NSCLC treatment.
- |||||||||| Journal: Autophagy Mediates Escherichia Coli-Induced Cellular Inflammatory Injury by Regulating Calcium Mobilization, Mitochondrial Dysfunction, and Endoplasmic Reticulum Stress. (Pubmed Central) - Nov 27, 2022
Finally, activation of autophagy inhibited the release of IL-1β and IL-18, cytochrome c, ATP, ERS-related proteins, and cytoplasmic calcium. Collectively, our findings demonstrate that autophagy mediated E. coli-induced cellular inflammatory injury by regulating cytoplasmic calcium, mitochondrial dysfunction, and ERS.
- |||||||||| chloroquine phosphate / Generic mfg.
Journal: Brucella BtpB Manipulates Apoptosis and Autophagic Flux in RAW264.7 Cells. (Pubmed Central) - Nov 27, 2022 Moreover, our results revealed that the autophagy inhibitor, chloroquine, reduces Brucella's intracellular survival. Overall, our data unveil new mechanisms of virulence implicating the effector BtpB in regulating host intracellular infection.
- |||||||||| Preclinical, Journal: Neuroprotective Mechanism of Icariin on Hypoxic Ischemic Brain Damage in Neonatal Mice. (Pubmed Central) - Nov 26, 2022
Both MPP and PHTPP administration significantly inhibited the expression levels of the ERα and ERβ proteins activated by ICA pretreatment, reversed the neuroprotective effects of ICA pretreatment, inhibited the increase in autophagy induced by ICA pretreatment, and promoted apoptosis. ICA pretreatment may promote autophagy by activating the ERα and ERβ pathways, thus reducing the apoptosis induced by HIBD and exerting a neuroprotective effect on neonatal mice with HIBD.
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