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Dong L, Luo L, Wang Z, Lian S, Wang M, Wu X, Fan J, Zeng Y, Li S, Lv S, Yang Y, Chen R, Shen E, Yang W, Li C, Wang K. Targeted degradation of NDUFS1 by agrimol B promotes mitochondrial ROS accumulation and cytotoxic autophagy arrest in hepatocellular carcinoma. Free Radic Biol Med 2024; 220:111-124. [PMID: 38697493 DOI: 10.1016/j.freeradbiomed.2024.04.242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 04/28/2024] [Accepted: 04/29/2024] [Indexed: 05/05/2024]
Abstract
Hepatocellular carcinoma (HCC) is a global public health problem with increased morbidity and mortality. Agrimol B, a natural polyphenol, has been proved to be a potential anticancer drug. Our recent report showed a favorable anticancer effect of agrimol B in HCC, however, the mechanism of action remains unclear. Here, we found agrimol B inhibits the growth and proliferation of HCC cells in vitro as well as in an HCC patient-derived xenograft (PDX) model. Notably, agrimol B drives autophagy initiation and blocks autophagosome-lysosome fusion, resulting in autophagosome accumulation and autophagy arrest in HCC cells. Mechanistically, agrimol B downregulates the protein level of NADH:ubiquinone oxidoreductase core subunit S1 (NDUFS1) through caspase 3-mediated degradation, leading to mitochondrial reactive oxygen species (mROS) accumulation and autophagy arrest. NDUFS1 overexpression partially restores mROS overproduction, autophagosome accumulation, and growth inhibition induced by agrimol B, suggesting a cytotoxic role of agrimol B-induced autophagy arrest in HCC cells. Notably, agrimol B significantly enhances the sensitivity of HCC cells to sorafenib in vitro and in vivo. In conclusion, our study uncovers the anticancer mechanism of agrimol B in HCC involving the regulation of oxidative stress and autophagy, and suggests agrimol B as a potential therapeutic drug for HCC treatment.
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Affiliation(s)
- Lixia Dong
- West China School of Basic Medical Sciences & Forensic Medicine, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, PR China
| | - Li Luo
- Center for Reproductive Medicine, Department of Gynecology and Obstetrics, West China Second University Hospital, Sichuan University, Chengdu, 610041, PR China; Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, 610041, PR China
| | - Zihao Wang
- Colorectal Cancer Center, West China Hospital, Sichuan University, 610041, PR China
| | - Shan Lian
- West China School of Basic Medical Sciences & Forensic Medicine, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, PR China
| | - Mao Wang
- West China School of Basic Medical Sciences & Forensic Medicine, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, PR China
| | - Xingyun Wu
- West China School of Basic Medical Sciences & Forensic Medicine, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, PR China
| | - Jiawu Fan
- West China School of Basic Medical Sciences & Forensic Medicine, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, PR China
| | - Yan Zeng
- West China School of Basic Medical Sciences & Forensic Medicine, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, PR China
| | - Sijia Li
- West China School of Basic Medical Sciences & Forensic Medicine, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, PR China
| | - Sinan Lv
- West China School of Basic Medical Sciences & Forensic Medicine, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, PR China
| | - Yurong Yang
- West China School of Basic Medical Sciences & Forensic Medicine, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, PR China
| | - Rong Chen
- West China School of Basic Medical Sciences & Forensic Medicine, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, PR China
| | - Enhao Shen
- West China School of Basic Medical Sciences & Forensic Medicine, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, PR China
| | - Wenyong Yang
- Department of Neurosurgery, Medical Research Center, the Third People's Hospital of Chengdu, the Affiliated Hospital of Southwest Jiaotong University, the Second Chengdu Hospital Affiliated to Chongqing Medical University, Chengdu, 610041, PR China.
| | - Changlong Li
- West China School of Basic Medical Sciences & Forensic Medicine, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, PR China.
| | - Kui Wang
- West China School of Basic Medical Sciences & Forensic Medicine, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, PR China.
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Wu M, Li H, Zhai R, Shan B, Guo C, Chen J. Tanshinone IIA positively regulates the Keap1-Nrf2 system to alleviate pulmonary fibrosis via the sestrin2-sqstm1 signaling axis-mediated autophagy. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 129:155620. [PMID: 38669964 DOI: 10.1016/j.phymed.2024.155620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 03/19/2024] [Accepted: 04/09/2024] [Indexed: 04/28/2024]
Abstract
BACKGROUND Activation of myofibroblasts, linked to oxidative stress, emerges as a pivotal role in the progression of pulmonary fibrosis (PF). Our prior research has underscored the therapeutic promise of tanshinone IIA (Tan-IIA) in mitigating PF by enhancing nuclear factor-erythroid 2-related factor 2 (Nrf2) activity. Nevertheless, the molecular basis through which Tan-IIA influences Nrf2 activity has yet to be fully elucidated. METHODS The influence of Tan-IIA on PF was assessed in vivo and in vitro models. Inhibitors, overexpression plasmids, and small interfering RNA (siRNA) were utilized to probe its underlying mechanism of action in vitro. RESULTS We demonstrate that Tan-IIA effectively activates the kelch-like ECH-associated protein 1 (Keap1)-Nrf2 antioxidant pathway, which in turn inhibits myofibroblast activation and ameliorates PF. Notably, the stability and nucleo-cytoplasmic shuttling of Nrf2 is shown to be dependent on augmented autophagic flux, which is in alignment with the observation that Tan-IIA induces autophagy. Inhibition of autophagy, conversely, fosters the activation of extracellular matrix (ECM)-producing myofibroblasts. Further, Tan-IIA initiates an autophagy program through the sestrin 2 (Sesn2)-sequestosome 1 (Sqstm1) signaling axis, crucial for protecting Nrf2 from Keap1-mediated degradation. Meanwhile, these findings were corroborated in a murine model of PF. CONCLUSION Collectively, we observed for the first time that the Sqstm1-Sesn2 axis-mediated autophagic degradation of Keap1 effectively prevents myofibroblast activation and reduces the synthesis of ECM. This autophagy-dependent degradation of Keap1 can be initiated by the Tan-IIA treatment, which solidifies its potential as an Nrf2-modulating agent for PF treatment.
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Affiliation(s)
- Mingyu Wu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China; Department of Pharmacognosy, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Hongxia Li
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China; Jiangsu Agri-Animal Husbandry Vocational College, Taizhou 22530, China
| | - Rao Zhai
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China; Department of Pharmacognosy, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Baixi Shan
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China; Department of Pharmacognosy, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Congying Guo
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China; Department of Pharmacognosy, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Jun Chen
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China; Department of Pharmacognosy, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 210009, China.
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Ling Z, Pan J, Zhang Z, Chen G, Geng J, Lin Q, Zhang T, Cao S, Chen C, Lin J, Yuan H, Ding W, Xiao F, Xu X, Li F, Wang G, Zhang Y, Li J. Small-molecule Molephantin induces apoptosis and mitophagy flux blockage through ROS production in glioblastoma. Cancer Lett 2024; 592:216927. [PMID: 38697460 DOI: 10.1016/j.canlet.2024.216927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 04/15/2024] [Accepted: 04/27/2024] [Indexed: 05/05/2024]
Abstract
Glioblastoma (GBM), one of the most malignant brain tumors in the world, has limited treatment options and a dismal survival rate. Effective and safe disease-modifying drugs for glioblastoma are urgently needed. Here, we identified a small molecule, Molephantin (EM-5), effectively penetrated the blood-brain barrier (BBB) and demonstrated notable antitumor effects against GBM with good safety profiles both in vitro and in vivo. Mechanistically, EM-5 not only inhibits the proliferation and invasion of GBM cells but also induces cell apoptosis through the reactive oxygen species (ROS)-mediated PI3K/Akt/mTOR pathway. Furthermore, EM-5 causes mitochondrial dysfunction and blocks mitophagy flux by impeding the fusion of mitophagosomes with lysosomes. It is noteworthy that EM-5 does not interfere with the initiation of autophagosome formation or lysosomal function. Additionally, the mitophagy flux blockage caused by EM-5 was driven by the accumulation of intracellular ROS. In vivo, EM-5 exhibited significant efficacy in suppressing tumor growth in a xenograft model. Collectively, our findings not only identified EM-5 as a promising, effective, and safe lead compound for treating GBM but also uncovered its underlying mechanisms from the perspective of apoptosis and mitophagy.
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Affiliation(s)
- Zhipeng Ling
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, and State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou, China; Department of Pharmacology, School of Medicine, and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou, China
| | - Junping Pan
- Guangdong Second Provincial General Hospital, Integrated Chinese and Western Medicine Postdoctoral Research Station, School of Medicine, Jinan University, Guangzhou, China
| | - Zhongfei Zhang
- Department of Neurosurgery, Guangzhou Women and Children's Medical Center, Guangzhou, China
| | - Guisi Chen
- Department of Pharmacology, School of Medicine, and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou, China
| | - Jiayuan Geng
- Department of Microbial and Biochemical Pharmacy, College of Pharmacy, Jinan University, Guangzhou, China
| | - Qiang Lin
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, and State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou, China
| | - Tao Zhang
- Department of Kidney Transplantation, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Shuqin Cao
- Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Cheng Chen
- Department of Neurosurgery, Guangzhou Women and Children's Medical Center, Guangzhou, China
| | - Jinrong Lin
- Department of Neurosurgery, Guangzhou Women and Children's Medical Center, Guangzhou, China
| | - Hongyao Yuan
- Department of Neurosurgery, Guangzhou Women and Children's Medical Center, Guangzhou, China
| | - Weilong Ding
- Department of Pharmacology, School of Medicine, and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou, China
| | - Fei Xiao
- Department of Pharmacology, School of Medicine, and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou, China
| | - Xinke Xu
- Department of Neurosurgery, Guangzhou Women and Children's Medical Center, Guangzhou, China
| | - Fangcheng Li
- Department of Neurosurgery, Guangzhou Women and Children's Medical Center, Guangzhou, China
| | - Guocai Wang
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, and State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou, China.
| | - Yubo Zhang
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, and State Key Laboratory of Bioactive Molecules and Druggability Assessment, Jinan University, Guangzhou, China; Department of Pharmacology, School of Medicine, and Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research, Jinan University, Guangzhou, China.
| | - Junliang Li
- Department of Neurosurgery, Guangzhou Women and Children's Medical Center, Guangzhou, China.
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Depierre P, Ginet V, Truttmann AC, Puyal J. Neuronal autosis is Na +/K +-ATPase alpha 3-dependent and involved in hypoxic-ischemic neuronal death. Cell Death Dis 2024; 15:363. [PMID: 38796484 PMCID: PMC11127954 DOI: 10.1038/s41419-024-06750-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 05/14/2024] [Accepted: 05/15/2024] [Indexed: 05/28/2024]
Abstract
Macroautophagy (hereafter called autophagy) is an essential physiological process of degradation of organelles and long-lived proteins. The discovery of autosis, a Na+/K+-ATPase (ATP1)-dependent type of autophagic cell death with specific morphological and biochemical features, has strongly contributed to the acceptance of a pro-death role of autophagy. However, the occurrence and relevance of autosis in neurons has never been clearly investigated, whereas we previously provided evidence that autophagy mechanisms could be involved in neuronal death in different in vitro and in vivo rodent models of hypoxia-ischemia (HI) and that morphological features of autosis were observed in dying neurons following rat perinatal cerebral HI. In the present study, we demonstrated that neuronal autosis could occur in primary cortical neurons using two different stimulations enhancing autophagy flux and neuronal death: a neurotoxic concentration of Tat-BECN1 (an autophagy-inducing peptide) and a hypoxic/excitotoxic stimulus (mimicking neuronal death induced by cerebral HI). Both stimulations induce autophagic neuronal death (dependent on canonical autophagic genes and independent on apoptotic, necroptotic or ferroptotic pathways) with all morphological and biochemical (ATP1a-dependent) features of autosis. However, we demonstrated that autosis is not dependent on the ubiquitous subunit ATP1a1 in neurons, as in dividing cell types, but on the neuronal specific ATP1a3 subunit. We also provided evidence that, in different in vitro and in vivo models where autosis is induced, ATP1a3-BECN1 interaction is increased and prevented by cardiac glycosides treatment. Interestingly, an increase in ATP1a3-BECN1 interaction is also detected in dying neurons in the autoptic brains of human newborns with severe hypoxic-ischemic encephalopathy (HIE). Altogether, these results suggest that ATP1a3-BECN1-dependent autosis could play an important role in neuronal death in HI conditions, paving the way for the development of new neuroprotective strategies in hypoxic-ischemic conditions including in severe case of human HIE.
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Affiliation(s)
- Pauline Depierre
- Department of Fundamental Neurosciences, University of Lausanne, Lausanne, Switzerland
| | - Vanessa Ginet
- Department of Fundamental Neurosciences, University of Lausanne, Lausanne, Switzerland
- Clinic of Neonatology, Department of Women, Mother and Child, University Hospital Center of Vaud, Lausanne, Switzerland
| | - Anita C Truttmann
- Clinic of Neonatology, Department of Women, Mother and Child, University Hospital Center of Vaud, Lausanne, Switzerland
| | - Julien Puyal
- Department of Fundamental Neurosciences, University of Lausanne, Lausanne, Switzerland.
- CURML, University Center of Legal Medicine, Lausanne University Hospital, Lausanne, Switzerland.
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Wang H, Du X, Liu W, Zhang C, Li Y, Hou J, Yu Y, Li G, Wang Q. Combination of betulinic acid and EGFR-TKIs exerts synergistic anti-tumor effects against wild-type EGFR NSCLC by inducing autophagy-related cell death via EGFR signaling pathway. Respir Res 2024; 25:215. [PMID: 38764025 PMCID: PMC11103851 DOI: 10.1186/s12931-024-02844-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Accepted: 05/09/2024] [Indexed: 05/21/2024] Open
Abstract
BACKGROUND Epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs) have revolutionized the treatment of lung cancer patients with mutated EGFR. However, the efficacy of EGFR-TKIs in wild-type EGFR tumors has been shown to be marginal. Methods that can sensitize EGFR-TKIs to EGFR wild-type NSCLC remain rare. Hence, we determined whether combination treatment can maximize the therapeutic efficacy of EGFR-TKIs. METHODS We established a focused drug screening system to investigate candidates for overcoming the intrinsic resistance of wild-type EGFR NSCLC to EGFR-TKIs. Molecular docking assays and western blotting were used to identify the binding mode and blocking effect of the candidate compounds. Proliferation assays, analyses of drug interactions, colony formation assays, flow cytometry and nude mice xenograft models were used to determine the effects and investigate the molecular mechanism of the combination treatment. RESULTS Betulinic acid (BA) is effective at targeting EGFR and synergizes with EGFR-TKIs (gefitinib and osimertinib) preferentially against wild-type EGFR. BA showed inhibitory activity due to its interaction with the ATP-binding pocket of EGFR and dramatically enhanced the suppressive effects of EGFR-TKIs by blocking EGFR and modulating the EGFR-ATK-mTOR axis. Mechanistic studies revealed that the combination strategy activated EGFR-induced autophagic cell death and that the EGFR-AKT-mTOR signaling pathway was essential for completing autophagy and cell cycle arrest. Activation of the mTOR pathway or blockade of autophagy by specific chemical agents markedly attenuated the effect of cell cycle arrest. In vivo administration of the combination treatment caused marked tumor regression in the A549 xenografts. CONCLUSIONS BA is a potential wild-type EGFR inhibitor that plays a critical role in sensitizing EGFR-TKI activity. BA combined with an EGFR-TKI effectively suppressed the proliferation and survival of intrinsically resistant lung cancer cells via the inhibition of EGFR as well as the induction of autophagy-related cell death, indicating that BA combined with an EGFR-TKI may be a potential therapeutic strategy for overcoming the primary resistance of wild-type EGFR-positive lung cancers.
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Affiliation(s)
- Han Wang
- The Second Hospital of Dalian Medical University, Dalian, 116023, China
- Guangzhou women and children's medical center, Guangzhou Medical University, Guangzhou, 510623, China
| | - Xiaohui Du
- The Second Hospital of Dalian Medical University, Dalian, 116023, China
| | - Wenwen Liu
- The Second Hospital of Dalian Medical University, Dalian, 116023, China
| | - Congcong Zhang
- The Second Hospital of Dalian Medical University, Dalian, 116023, China
| | - Ying Li
- The Second Hospital of Dalian Medical University, Dalian, 116023, China
| | - Jingwen Hou
- The Second Hospital of Dalian Medical University, Dalian, 116023, China
| | - Yi Yu
- The Second Hospital of Dalian Medical University, Dalian, 116023, China
| | - Guiru Li
- The Second Hospital of Dalian Medical University, Dalian, 116023, China.
| | - Qi Wang
- The Second Hospital of Dalian Medical University, Dalian, 116023, China.
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Gorska-Arcisz M, Popeda M, Braun M, Piasecka D, Nowak JI, Kitowska K, Stasilojc G, Okroj M, Romanska HM, Sadej R. FGFR2-triggered autophagy and activation of Nrf-2 reduce breast cancer cell response to anti-ER drugs. Cell Mol Biol Lett 2024; 29:71. [PMID: 38745155 PMCID: PMC11092031 DOI: 10.1186/s11658-024-00586-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 04/29/2024] [Indexed: 05/16/2024] Open
Abstract
BACKGROUND Genetic abnormalities in the FGFR signalling occur in 40% of breast cancer (BCa) patients resistant to anti-ER therapy, which emphasizes the potential of FGFR-targeting strategies. Recent findings indicate that not only mutated FGFR is a driver of tumour progression but co-mutational landscapes and other markers should be also investigated. Autophagy has been recognized as one of the major mechanisms underlying the role of tumour microenvironment in promotion of cancer cell survival, and resistance to anti-ER drugs. The selective autophagy receptor p62/SQSTM1 promotes Nrf-2 activation by Keap1/Nrf-2 complex dissociation. Herein, we have analysed whether the negative effect of FGFR2 on BCa cell response to anti-ER treatment involves the autophagy process and/or p62/Keap1/Nrf-2 axis. METHODS The activity of autophagy in ER-positive MCF7 and T47D BCa cell lines was determined by analysis of expression level of autophagy markers (p62 and LC3B) and monitoring of autophagosomes' maturation. Western blot, qPCR and proximity ligation assay were used to determine the Keap1/Nrf-2 interaction and Nrf-2 activation. Analysis of 3D cell growth in Matrigel® was used to assess BCa cell response to applied treatments. In silico gene expression analysis was performed to determine FGFR2/Nrf-2 prognostic value. RESULTS We have found that FGFR2 signalling induced autophagy in AMPKα/ULK1-dependent manner. FGFR2 activity promoted dissociation of Keap1/Nrf-2 complex and activation of Nrf-2. Both, FGFR2-dependent autophagy and activation of Nrf-2 were found to counteract the effect of anti-ER drugs on BCa cell growth. Moreover, in silico analysis showed that high expression of NFE2L2 (gene encoding Nrf-2) combined with high FGFR2 expression was associated with poor relapse-free survival (RFS) of ER+ BCa patients. CONCLUSIONS This study revealed the unknown role of FGFR2 signalling in activation of autophagy and regulation of the p62/Keap1/Nrf-2 interdependence, which has a negative impact on the response of ER+ BCa cells to anti-ER therapies. The data from in silico analyses suggest that expression of Nrf-2 could act as a marker indicating potential benefits of implementation of anti-FGFR therapy in patients with ER+ BCa, in particular, when used in combination with anti-ER drugs.
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Affiliation(s)
- Monika Gorska-Arcisz
- Laboratory of Enzymology and Molecular Oncology, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Debinki 1, 80-211, Gdansk, Poland
| | - Marta Popeda
- Department of Pathomorphology, Medical University of Gdansk, Gdansk, Poland
| | - Marcin Braun
- Department of Pathology, Chair of Oncology, Medical University of Lodz, Pomorska 251, 92-213, Lodz, Poland
| | - Dominika Piasecka
- Laboratory of Enzymology and Molecular Oncology, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Debinki 1, 80-211, Gdansk, Poland
| | - Joanna I Nowak
- Department of Histology, Medical University of Gdansk, Gdansk, Poland
| | - Kamila Kitowska
- Laboratory of Enzymology and Molecular Oncology, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Debinki 1, 80-211, Gdansk, Poland
| | - Grzegorz Stasilojc
- Department of Cell Biology and Immunology, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Gdansk, Poland
| | - Marcin Okroj
- Department of Cell Biology and Immunology, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Gdansk, Poland
| | - Hanna M Romanska
- Department of Pathology, Chair of Oncology, Medical University of Lodz, Pomorska 251, 92-213, Lodz, Poland.
| | - Rafal Sadej
- Laboratory of Enzymology and Molecular Oncology, Intercollegiate Faculty of Biotechnology, University of Gdansk and Medical University of Gdansk, Debinki 1, 80-211, Gdansk, Poland.
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Wu J, Zhang Y, Tang H, Ye BC. MicroRNA-144-3p Inhibits Host Lipid Catabolism and Autophagy by Targeting PPARα and ABCA1 During Mycobacterium Tuberculosis Infection. ACS Infect Dis 2024; 10:1654-1663. [PMID: 38578697 DOI: 10.1021/acsinfecdis.3c00731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2024]
Abstract
MicroRNA-mediated metabolic reprogramming recently has been identified as an important strategy for Mycobacterium tuberculosis (Mtb) to evade host immune responses. However, it is unknown what role microRNA-144-3p (miR-144-3p) plays in cellular metabolism during Mtb infection. Here, we report the meaning of miR-144-3p-mediated lipid accumulation for Mtb-macrophage interplay. Mtb infection was shown to upregulate the expression of miR-144-3p in macrophages. By targeting peroxisome proliferator-activated receptor α (PPARα) and ATP-binding cassette transporter A1 (ABCA1), miR-144-3p overexpression promoted lipid accumulation and bacterial survival in Mtb-infected macrophages, while miR-144-3p inhibition had the opposite effect. Furthermore, reprogramming of host lipid metabolism by miR-144-3p suppressed autophagy in response to Mtb infection. Our findings uncover that miR-144-3p regulates host metabolism and immune responses to Mtb by targeting PPARα and ABCA1, suggesting a potential host-directed tuberculosis therapy by targeting the interface of miRNA and lipid metabolism.
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Affiliation(s)
- Jing Wu
- Institute of Engineering Biology and Health, Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yong Zhang
- Institute of Engineering Biology and Health, Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China
| | - Hao Tang
- Institute of Engineering Biology and Health, Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China
| | - Bang-Ce Ye
- Institute of Engineering Biology and Health, Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China
- Lab of Biosystems and Microanalysis, State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, China
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Hwang RD, Lu Y, Tang Q, Periz G, Park G, Li X, Xiang Q, Liu Y, Zhang T, Wang J. DBT is a metabolic switch for maintenance of proteostasis under proteasomal impairment. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.09.12.556394. [PMID: 37745492 PMCID: PMC10515868 DOI: 10.1101/2023.09.12.556394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
Proteotoxic stress impairs cellular homeostasis and underlies the pathogenesis of many neurodegenerative diseases, including amyotrophic lateral sclerosis (ALS). The proteasomal and autophagic degradation of proteins are two major pathways for protein quality control in the cell. Here, we report a genome-wide CRISPR screen uncovering a major regulator of cytotoxicity resulting from the inhibition of the proteasome. Dihydrolipoamide branched chain transacylase E2 (DBT) was found to be a robust suppressor, the loss of which protects against proteasome inhibition-associated cell death through promoting clearance of ubiquitinated proteins. Loss of DBT altered the metabolic and energetic status of the cell and resulted in activation of autophagy in an AMP-activated protein kinase (AMPK)-dependent mechanism in the presence of proteasomal inhibition. Loss of DBT protected against proteotoxicity induced by ALS-linked mutant TDP-43 in Drosophila and mammalian neurons. DBT is upregulated in the tissues from ALS patients. These results demonstrate that DBT is a master switch in the metabolic control of protein quality control with implications in neurodegenerative diseases.
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Jassey A, Jackson WT. Viruses and autophagy: bend, but don't break. Nat Rev Microbiol 2024; 22:309-321. [PMID: 38102460 DOI: 10.1038/s41579-023-00995-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/09/2023] [Indexed: 12/17/2023]
Abstract
Autophagy is a constitutive cellular process of degradation required to maintain homeostasis and turn over spent organelles and aggregated proteins. For some viruses, the process can be antiviral, degrading viral proteins or virions themselves. For many other viruses, the induction of the autophagic process provides a benefit and promotes viral replication. In this Review, we survey the roles that the autophagic pathway plays in the replication of viruses. Most viruses that benefit from autophagic induction block autophagic degradation, which is a 'bend, but don't break' strategy initiating but limiting a potentially antiviral response. In almost all cases, it is other effects of the redirected autophagic machinery that benefit these viruses. This rapid mechanism to generate small double-membraned vesicles can be usurped to shape membranes for viral genome replication and virion maturation. However, data suggest that autophagic maintenance of cellular homeostasis is crucial for the initiation of infection, as viruses have evolved to replicate in normal, healthy cells. Inhibition of autophagic degradation is important once infection has initiated. Although true degradative autophagy is probably a negative for most viruses, initiating nondegradative autophagic membranes benefits a wide variety of viruses.
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Affiliation(s)
- Alagie Jassey
- Department of Microbiology and Immunology and Center for Pathogen Research, University of Maryland School of Medicine, Baltimore, MD, USA
| | - William T Jackson
- Department of Microbiology and Immunology and Center for Pathogen Research, University of Maryland School of Medicine, Baltimore, MD, USA.
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10
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Cai H, Meng Z, Yu F. The involvement of ROS-regulated programmed cell death in hepatocellular carcinoma. Crit Rev Oncol Hematol 2024; 197:104361. [PMID: 38626849 DOI: 10.1016/j.critrevonc.2024.104361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 03/11/2024] [Accepted: 04/10/2024] [Indexed: 04/21/2024] Open
Abstract
Reactive oxidative species (ROS) is a crucial factor in the regulation of cellular biological activity and function, and aberrant levels of ROS can contribute to the development of a variety of diseases, particularly cancer. Numerous discoveries have affirmed that this process is strongly associated with "programmed cell death (PCD)," which refers to the suicide protection mechanism initiated by cells in response to external stimuli, such as apoptosis, autophagy, ferroptosis, etc. Research has demonstrated that ROS-induced PCD is crucial for the development of hepatocellular carcinoma (HCC). These activities serve a dual function in both facilitating and inhibiting cancer, suggesting the existence of a delicate balance within healthy cells that can be disrupted by the abnormal generation of reactive oxygen species (ROS), thereby influencing the eventual advancement or regression of a tumor. In this review, we summarize how ROS regulates PCD to influence the tumorigenesis and progression of HCC. Studying how ROS-induced PCD affects the progression of HCC at a molecular level can help develop better prevention and treatment methods and facilitate the design of more effective preventative and therapeutic strategies.
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Affiliation(s)
- Hanchen Cai
- The First Afliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, China; The Second School of Medicine, Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, China
| | - Ziqi Meng
- The Second School of Medicine, Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, China; The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, China
| | - Fujun Yu
- Department of Gastroenterology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang Province, China.
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11
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Mohar NP, Cox EM, Adelizzi E, Moore SA, Mathews KD, Darbro BW, Wallrath LL. The Influence of a Genetic Variant in CCDC78 on LMNA-Associated Skeletal Muscle Disease. Int J Mol Sci 2024; 25:4930. [PMID: 38732148 PMCID: PMC11084688 DOI: 10.3390/ijms25094930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 04/12/2024] [Accepted: 04/24/2024] [Indexed: 05/13/2024] Open
Abstract
Mutations in the LMNA gene-encoding A-type lamins can cause Limb-Girdle muscular dystrophy Type 1B (LGMD1B). This disease presents with weakness and wasting of the proximal skeletal muscles and has a variable age of onset and disease severity. This variability has been attributed to genetic background differences among individuals; however, such variants have not been well characterized. To identify such variants, we investigated a multigeneration family in which affected individuals are diagnosed with LGMD1B. The primary genetic cause of LGMD1B in this family is a dominant mutation that activates a cryptic splice site, leading to a five-nucleotide deletion in the mature mRNA. This results in a frame shift and a premature stop in translation. Skeletal muscle biopsies from the family members showed dystrophic features of variable severity, with the muscle fibers of some family members possessing cores, regions of sarcomeric disruption, and a paucity of mitochondria, not commonly associated with LGMD1B. Using whole genome sequencing (WGS), we identified 21 DNA sequence variants that segregate with the family members possessing more profound dystrophic features and muscle cores. These include a relatively common variant in coiled-coil domain containing protein 78 (CCDC78). This variant was given priority because another mutation in CCDC78 causes autosomal dominant centronuclear myopathy-4, which causes cores in addition to centrally positioned nuclei. Therefore, we analyzed muscle biopsies from family members and discovered that those with both the LMNA mutation and the CCDC78 variant contain muscle cores that accumulated both CCDC78 and RyR1. Muscle cores containing mislocalized CCDC78 and RyR1 were absent in the less profoundly affected family members possessing only the LMNA mutation. Taken together, our findings suggest that a relatively common variant in CCDC78 can impart profound muscle pathology in combination with a LMNA mutation and accounts for variability in skeletal muscle disease phenotypes.
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Affiliation(s)
- Nathaniel P. Mohar
- Interdisciplinary Graduate Program in Genetics, University of Iowa, Iowa City, IA 52242, USA; (N.P.M.); (E.A.)
- Department of Biochemistry and Molecular Biology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Efrem M. Cox
- Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA (S.A.M.)
- Department of Neurosurgery, UNLV School of Medicine, Las Vegas, NV 89106, USA
| | - Emily Adelizzi
- Interdisciplinary Graduate Program in Genetics, University of Iowa, Iowa City, IA 52242, USA; (N.P.M.); (E.A.)
- Department of Anatomy and Cell Biology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Steven A. Moore
- Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA (S.A.M.)
| | - Katherine D. Mathews
- Department of Pediatrics, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA;
| | - Benjamin W. Darbro
- Interdisciplinary Graduate Program in Genetics, University of Iowa, Iowa City, IA 52242, USA; (N.P.M.); (E.A.)
- Department of Pediatrics, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA;
| | - Lori L. Wallrath
- Interdisciplinary Graduate Program in Genetics, University of Iowa, Iowa City, IA 52242, USA; (N.P.M.); (E.A.)
- Department of Biochemistry and Molecular Biology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
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12
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Cui YN, Tian N, Luo YH, Zhao JJ, Bi CF, Gou Y, Liu J, Feng K, Zhang JF. High-dose Vitamin C injection ameliorates against sepsis-induced myocardial injury by anti-apoptosis, anti-inflammatory and pro-autophagy through regulating MAPK, NF-κB and PI3K/AKT/mTOR signaling pathways in rats. Aging (Albany NY) 2024; 16:6937-6953. [PMID: 38643461 PMCID: PMC11087106 DOI: 10.18632/aging.205735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 03/13/2024] [Indexed: 04/22/2024]
Abstract
AIMS This study aimed to evaluate the effects of VC on SIMI in rats. METHODS In this study, the survival rate of high dose VC for SIMI was evaluated within 7 days. Rats were randomly assigned to three groups: Sham group, CLP group, and high dose VC (500 mg/kg i.v.) group. The animals in each group were treated with drugs for 1 day, 3 days or 5 days, respectively. Echocardiography, myocardial enzymes and HE were used to detect cardiac function. IL-1β, IL-6, IL-10 and TNF-α) in serum were measured using ELISA kits. Western blot was used to detect proteins related to apoptosis, inflammation, autophagy, MAPK, NF-κB and PI3K/Akt/mTOR signaling pathways. RESULTS High dose VC improved the survival rate of SIMI within 7 days. Echocardiography, HE staining and myocardial enzymes showed that high-dose VC relieved SIMI in rats in a time-dependent manner. And compared with CLP group, high-dose VC decreased the expressions of pro-apoptotic proteins, while increased the expression of anti-apoptotic protein. And compared with CLP group, high dose VC decreased phosphorylation levels of Erk1/2, P38, JNK, NF-κB and IKK α/β in SIMI rats. High dose VC increased the expression of the protein Beclin-1 and LC3-II/LC3-I ratio, whereas decreased the expression of P62 in SIMI rats. Finally, high dose VC attenuated phosphorylation of PI3K, AKT and mTOR compared with the CLP group. SIGNIFICANCE Our results showed that high dose VC has a good protective effect on SIMI after continuous treatment, which may be mediated by inhibiting apoptosis and inflammatory, and promoting autophagy through regulating MAPK, NF-κB and PI3K/AKT/mTOR pathway.
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Affiliation(s)
- Ya-Nan Cui
- Medical Records and Statistics Room, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750000, China
| | - Na Tian
- Department of Emergency Medical, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750000, China
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, Ningxia 750000, China
| | - Yan-Hai Luo
- Department of Pathology, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750000, China
| | - Ji-Jun Zhao
- Department of Emergency Medical, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750000, China
| | - Cheng-Fei Bi
- Department of Emergency Medical, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750000, China
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, Ningxia 750000, China
| | - Yi Gou
- Department of Emergency Medical, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750000, China
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, Ningxia 750000, China
| | - Jia Liu
- Department of Emergency Medical, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750000, China
| | - Ke Feng
- Department of Emergency Medical, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750000, China
| | - Jun-Fei Zhang
- Department of Emergency Medical, General Hospital of Ningxia Medical University, Yinchuan, Ningxia 750000, China
- School of Clinical Medicine, Ningxia Medical University, Yinchuan, Ningxia 750000, China
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13
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Yin Y, Ahmed N, Hassan MF, Guo K, Shakir Y, Zang J, Lyu J. Effect of Nano-selenium on Biological Mechanism of Goblet Cells of the Small Intestine Within Laying Hen. Biol Trace Elem Res 2024; 202:1699-1710. [PMID: 37454307 DOI: 10.1007/s12011-023-03770-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 07/07/2023] [Indexed: 07/18/2023]
Abstract
Dietary selenium intake within the normal physiological range is critical for various supporting biological functions. However, the effect of nano-selenium on biological mechanism of goblet cells associated with autophagy is largely unknown.The purpose of this study was to investigate the effect of nano-selenium on the mucosal immune-defense mechanism of goblet cells (GCs) in the small intestine of laying hens.The autophagy was determined by using specific markers. Nano-selenium-treated group of immunohistochemistry (IHC), immunofluorescence (IF), and western blotting (WB) results indicated the strong positive immune signaling of microtubule-associated light chain (LC3) within the mucosal surface of the small intestine. However, weak expression of LC3 was observed in the 3-methyladenine autophagy inhibitor (3-MA) group. IHC and IF staining results showed the opposite tendency for LC3 of sequestosome 1 (P62/SQSTM1). P62/SQSTM1 showed strong positive immune signaling within the mucosal surface of the small intestine of the 3-MAgroup, and weak immune signaling of P62/SQSTM1 in the nano-selenium-treated group. Moreover, pinpointing autophagy was involved in the mucosal production and enrichment of mucosal immunity of the GCs. The morphology and ultrastructure evidence showed that the mucus secretion of GCs was significantly increased after nano-selenium treatment confirmed by light and transmission electron microscopy. Besides that, immunostaining of IHC, IF and WB showed that autophagy enhanced the secretion of Mucin2 (Muc2) protein in nano-selenium-treated group. This work illustrates that the nano-selenium particle might enhance the mucosal immune-defense mechanism via the protective role of GCs for intestinal homeostasis through autophagy.
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Affiliation(s)
- Yongxiang Yin
- Department of Pathology, Wuxi Maternal and Child Health Care Hospital, Womens Hospital of Jiangnan University, Jiangsu, 214002, China
| | - Nisar Ahmed
- Faculty of Veterinary and Animal Sciences, Lasbela University of Agriculture, Water and Marine Sciences, Uthal, 90150, Pakistan
| | - Mohammad Farooque Hassan
- Shaheed Benazir Bhutto University of Veterinary and Animal Sciences, Sakrand, Sindh, 67210, Pakistan
| | - Kai Guo
- Department of Pathology, Suzhou Science and Technology Town Hospital, Suzhou, 215153, China
| | - Yasmeen Shakir
- Department of Biochemistry, Hazara University, Mansehra, 21300, Pakistan
| | - Jia Zang
- Department of Laboratory Medicine, Wuxi Maternal and Child Health Care Hospital, Womens Hospital of Jiangnan University, Jiangsu, 214002, China.
| | - Jue Lyu
- Department of Laboratory Medicine, Wuxi No.2 Peoples Hospital, Jiangnan University Medical Center, Jiangsu, 214002, China.
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14
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Zhang G, Wang M, Gao Y, Komianou AC, Georgiou EA, Wang Y, Zheng Y, Liu J, Kostakis IK, Zhao L. A Novel Synthesized Cyclohexane-Hydroxytyrosol Derivative Suppresses Ovarian Cancer Cell Growth Through Inducing Reactive Oxidative Species and Blocking Autophagic Flux. Antioxid Redox Signal 2024. [PMID: 38407966 DOI: 10.1089/ars.2023.0400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Aims: Drug resistance in ovarian cancer (OC) cells often leads to recurrence, metastasis, and high mortality rates among OC patients. Hydroxytyrosol (HT) has been reported to inhibit the proliferation of ovarian and other types of cancer cells. Here we synthesized a novel cyclohexane-hydroxytyrosol derivative (Chx-HT) for enhanced anticaner efficacy. We examined the growth-suppressing effect of Chx-HT on OC cells in vitro and in a xenograft mouse model and investigated the underlying mechanism. Results: We demonstrated that Chx-HT inhibits proliferation, promotes apoptosis, and remodels glucose and lipid metabolism by reducing fatty acid β-oxidation while increasing glycolysis, de novo fatty acid synthesis (FAS), and lipid droplet (LD) accumulation, impairs mitochondrial respiration, and induces oxidative stress both in vitro and in vivo. In addition, Chx-HT blocks autophagic flux by obstructing the maturation of lysosomal cathepsins in the late stage, but also activates autophagy through the p-AMPK/p-mTOR/p-ULK1 pathway in response to energy deficit. Innovation and Conclusion: Reactive oxidative species (ROS) play a critical role in mediating the effects of Chx-HT on proliferation, apoptosis, autophagy, tricarboxylic acid (TCA) cycle, fatty acid β-oxidation, and mitochondrial respiration, and the autophagic activation underlies the effects of Chx-HT on glycolysis, de novo FAS, and LD accumulation in OC cells. Cotreating OC cells with Chx-HT and autophagic inhibitor or glycolytic inhibitor results in an additive inhibition of proliferation. Our study indicates that Chx-HT stands for a promising OC therapeutic by ROS and autophagy blockade-mediated metabolic remodeling.
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Affiliation(s)
- Guanfei Zhang
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Cardiometabolic Innovation Center, Ministry of Education, Department of Cardiology, First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Min Wang
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Cardiometabolic Innovation Center, Ministry of Education, Department of Cardiology, First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Yilin Gao
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Cardiometabolic Innovation Center, Ministry of Education, Department of Cardiology, First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | | | - Eleftheria A Georgiou
- Faculty of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Yan Wang
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Cardiometabolic Innovation Center, Ministry of Education, Department of Cardiology, First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Yezi Zheng
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Cardiometabolic Innovation Center, Ministry of Education, Department of Cardiology, First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Jiankang Liu
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Cardiometabolic Innovation Center, Ministry of Education, Department of Cardiology, First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
- School of Life Sciences, University of Health and Rehabilitation Sciences, Qingdao, China
| | - Ioannis K Kostakis
- Faculty of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Lin Zhao
- Center for Mitochondrial Biology and Medicine, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Cardiometabolic Innovation Center, Ministry of Education, Department of Cardiology, First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
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15
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Pang JD, Jin XM, Liu Y, Dong ZJ, Ding J, Boireau P, Vallée I, Liu MY, Xu N, Liu XL. Trichinella spiralis inhibits myoblast differentiation by targeting SQSTM1/p62 with a secreted E3 ubiquitin ligase. iScience 2024; 27:109102. [PMID: 38380253 PMCID: PMC10877949 DOI: 10.1016/j.isci.2024.109102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 11/05/2023] [Accepted: 01/30/2024] [Indexed: 02/22/2024] Open
Abstract
Trichinella spiralis infection is associated with the formation of cysts within host skeletal muscle cells, thereby enabling immune evasion and subsequent growth and development; however, the pathogenic factors involved in this process and their mechanisms remain elusive. Here, we found that Ts-RNF secreted by T. spiralis is required for its growth and development in host cells. Further study revealed that Ts-RNF functions as an E3 ubiquitin ligase that targets the UBA domain of SQSTM1/p62 by forming K63-type ubiquitin chains. This modification interferes with autophagic flux, leading to impaired mitochondrial clearance and abnormal myotube differentiation and fusion. Our results established that T. spiralis increases its escape by interfering with host autophagy via the secretion of an E3 ubiquitin ligase.
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Affiliation(s)
- Jian da Pang
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, Jilin 130062, China
| | - Xue min Jin
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, Jilin 130062, China
| | - Yi Liu
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, Jilin 130062, China
| | - Zi jian Dong
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, Jilin 130062, China
| | - Jing Ding
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, Jilin 130062, China
| | - Pascal Boireau
- Ecole Nationale Vétérinaire d’Alfort, Laboratoire de Santé Animale, BIPAR, 94700 Maisons-Alfort, France
| | - Isabelle Vallée
- Ecole Nationale Vétérinaire d’Alfort, Laboratoire de Santé Animale, BIPAR, 94700 Maisons-Alfort, France
| | - Ming yuan Liu
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, Jilin 130062, China
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu 225000, China
| | - Ning Xu
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, Jilin 130062, China
| | - Xiao lei Liu
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis, College of Veterinary Medicine, Jilin University, Changchun, Jilin 130062, China
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16
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Ye D, Zhang Y, Zhang B, Liu J, Wei T, Lu S. The regulatory role of m 6A methylation modification in metabolic syndrome pathogenesis and progression. Front Physiol 2024; 15:1271874. [PMID: 38562618 PMCID: PMC10984216 DOI: 10.3389/fphys.2024.1271874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Accepted: 02/29/2024] [Indexed: 04/04/2024] Open
Abstract
Metabolic syndromes are characterized by various complications caused by disrupted glucose and lipid metabolism, which are major factors affecting the health of a population. However, existing diagnostic and treatment strategies have limitations, such as the lack of early diagnostic and therapeutic approaches, variability in patient responses to treatment, and cost-effectiveness. Therefore, developing alternative solutions for metabolic syndromes is crucial. N6-methyladenosine (m6A) is one of the most abundant modifications that determine the fate of RNA. m6A modifications are closely associated with metabolic syndrome development and present novel prospects for clinical applications. Aberrant m6A modifications have been detected during inflammatory infiltration, apoptosis, autophagy, iron sagging, necrosis, and scorching during metabolic syndrome pathogenesis and progression. However, few reviews have systematically described the correlation between m6A modifications and these factors concerning metabolic syndrome pathogenesis and progression. This study summarizes the m6A methylation regulators and their roles in metabolic syndrome development, highlighting the potential of m6A modification as a biomarker in metabolic disorders.
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Affiliation(s)
- Diwen Ye
- Department of Laboratory Medicine, The First Affiliated Hospital of Shandong First Medical University, Jinan, China
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, China
| | - Yongjiao Zhang
- Department of Laboratory Medicine, The First Affiliated Hospital of Shandong First Medical University, Jinan, China
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, China
| | - Bingyang Zhang
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, China
| | - Junjun Liu
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, China
| | - Tianshu Wei
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, China
| | - Sumei Lu
- Department of Laboratory Medicine, The First Affiliated Hospital of Shandong First Medical University, Jinan, China
- School of Medical Laboratory, Weifang Medical University, Weifang, Shandong, China
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17
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Zhang Y, Yang J, Ouyang C, Meng N. The association between ferroptosis and autophagy in cardiovascular diseases. Cell Biochem Funct 2024; 42:e3985. [PMID: 38509716 DOI: 10.1002/cbf.3985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 03/05/2024] [Accepted: 03/08/2024] [Indexed: 03/22/2024]
Abstract
Autophagy is a process in which cells degrade intracellular substances and play a variety of roles in cells, such as maintaining intracellular homeostasis, preventing cell overgrowth, and removing pathogens. It is highly conserved during the evolution of eukaryotic cells. So far, the study of autophagy is still a hot topic in the field of cytology. Ferroptosis is an iron-dependent form of cell death, accompanied by the accumulation of reactive oxygen species and lipid peroxides. With the deepening of research, it has been found that ferroptosis, like autophagy, is involved in the occurrence and development of cardiovascular diseases. The relationship between autophagy and ferroptosis is complex, and the association between the two in cardiovascular disease remains to be clarified. This article reviews the mechanism of autophagy and ferroptosis and their correlation, and discusses the relationship between them in cardiovascular diseases, which is expected to provide new and important treatment strategies for cardiovascular diseases.
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Affiliation(s)
- Yifan Zhang
- School of Biological Science and Technology, University of Jinan, Jinan, China
| | - Junjun Yang
- School of Biological Science and Technology, University of Jinan, Jinan, China
| | - Chenxi Ouyang
- Department of Vascular Surgery, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Ning Meng
- School of Biological Science and Technology, University of Jinan, Jinan, China
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18
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Sales CF, Pinheiro APB, Ribeiro YM, Moreira DP, Luz RK, Melo RMC, Rizzo E. Starvation-induced autophagy modulates spermatogenesis and sperm quality in Nile tilapia. Theriogenology 2024; 216:42-52. [PMID: 38154205 DOI: 10.1016/j.theriogenology.2023.11.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 11/10/2023] [Accepted: 11/28/2023] [Indexed: 12/30/2023]
Abstract
Spermatogenesis is a finely regulated process that involves the interaction of several cellular mechanisms to ensure the proper development and maturation of germ cells. This study assessed autophagy contribution and its relation to apoptosis in fish spermatogenesis during starvation. To that end, Nile tilapia males were subjected to 0 (control), 7, 14, 21, and 28 days of starvation to induce autophagy. Testes samples were obtained for analyses of spermatogenesis by histology, electron microscopy, immunohistochemistry, and western blotting. Sperm quality was assessed using a computer-assisted sperm analysis (CASA) system. Data indicated a significant reduction in gonadosomatic index, seminiferous tubule area, and spermatozoa proportion in fish subject to starvation compared to the control group. Immunoblotting revealed a reduction of Bcl2 and Beclin 1 associated with increased Bax and Caspase-3, mainly after 21 and 28 days of starvation. LC3 and P62 indicated reduced autophagic flux in these starvation times. Immunolabeling for autophagic and apoptotic proteins occurred in all development stages of the germ cells, but protein expression varied throughout starvation. Beclin 1 and Cathepsin D decreased while Bax and Caspase-3 increased in spermatocytes, spermatids, and spermatozoa after 21 and 28 days. Autophagic and lysosomal proteins colocalization indicated the fusion of autophagosomes with lysosomes and lysosomal degradation in spermatogenic cells. The CASA system indicated reduced sperm motility and velocity in animals subjected to 21 and 28 days of starvation. Altogether, the data support autophagy acting at different spermatogenesis stages in Nile tilapia, with decreased autophagy and increased apoptosis after 21 and 28 days of starvation, which results in a decrease in the spermatozoa number and sperm quality.
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Affiliation(s)
- Camila Ferreira Sales
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, 31270-901, Belo Horizonte, Minas Gerais, Brazil
| | - Ana Paula Barbosa Pinheiro
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, 31270-901, Belo Horizonte, Minas Gerais, Brazil
| | - Yves Moreira Ribeiro
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, 31270-901, Belo Horizonte, Minas Gerais, Brazil
| | - Davidson Peruci Moreira
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, 31270-901, Belo Horizonte, Minas Gerais, Brazil
| | - Ronald Kennedy Luz
- Laboratório de Aquacultura, Escola de Veterinária, Universidade Federal de Minas Gerais, 31270-901, Belo Horizonte, Minas Gerais, Brazil
| | - Rafael Magno Costa Melo
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, 31270-901, Belo Horizonte, Minas Gerais, Brazil
| | - Elizete Rizzo
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, 31270-901, Belo Horizonte, Minas Gerais, Brazil.
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Pang X, Qiu W, Zhang X, Huang J, Zhou S, Wang R, Tang Z, Su R. Asiatic Acid Alleviates Lipopolysaccharide-Induced Acute Myocardial Injury by Promoting Mitophagy and Regulating Mitochondrial Dynamics in Broilers. Avian Dis 2024; 68:25-32. [PMID: 38687104 DOI: 10.1637/aviandiseases-d-23-00036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Accepted: 01/04/2024] [Indexed: 05/02/2024]
Abstract
Acute myocardial injury (AMI) induced by lipopolysaccharide (LPS) can cause cardiovascular dysfunction and lead to death in poultry. Traditional antibiotic therapy has been found to have many limitations and negative effects. Asiatic acid (AA) is a naturally occurring pentacyclic triterpenoid that is extracted from Centella asiatica and has anti-inflammatory, antioxidant, and anticancer pharmacological properties. Previously, we studied the effect of AA on LPS-induced liver and kidney injury; however, the impact of AA on LPS-induced AMI remained unclear. Sixty 1-day-old broilers were randomly divided into control group, LPS group, LPS + AA 15 mg/kg group, LPS + AA 30 mg/kg group, LPS + AA 60 mg/kg group, and control + AA 60 mg/kg group. The histopathology of cardiac tissues was detected by hematoxylin and eosin (H&E) staining. The mRNA and protein expressions related to mitochondrial dynamics and mitophagy were detected by quantitative real-time PCR, western blot, immunofluorescence, and immunohistochemistry. Disorganized myocardial cells and fractured myocardial fibers were found in the LPS group, and obvious red-blood-cell filling can be seen in the gaps between the myocardial fibers in the low-dose AA group. Nevertheless, the medium and high dose of AA obviously attenuated these changes. Our results showed that AA significantly restored the mRNA and protein expressions related to mitochondrial dynamic through further promoting mitophagy. This study revealed the effect of AA on LPS-induced AMI in broilers. Mechanically, AA regulated mitochondrial dynamic homeostasis and further promoted mitophagy. These novel findings indicate that AA may be a potential drug for LPS-induced AMI in broilers.
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Affiliation(s)
- Xiaoyue Pang
- College of Veterinary Medicine, South China of Agricultural University, Guangzhou, People's Republic of China
| | - Wenyue Qiu
- College of Veterinary Medicine, South China of Agricultural University, Guangzhou, People's Republic of China
| | - Xinting Zhang
- College of Veterinary Medicine, South China of Agricultural University, Guangzhou, People's Republic of China
| | - Jianjia Huang
- College of Veterinary Medicine, South China of Agricultural University, Guangzhou, People's Republic of China
| | - Shuilian Zhou
- College of Veterinary Medicine, South China of Agricultural University, Guangzhou, People's Republic of China
| | - Rongmei Wang
- Yingdong College of Biology and Agriculture, Shaoguan University, Shaoguan, People's Republic of China
| | - Zhaoxin Tang
- College of Veterinary Medicine, South China of Agricultural University, Guangzhou, People's Republic of China
| | - Rongsheng Su
- College of Veterinary Medicine, South China of Agricultural University, Guangzhou, People's Republic of China,
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20
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Bhatnagar A, Chopra U, Raja S, Das KD, Mahalingam S, Chakravortty D, Srinivasula SM. TLR-mediated aggresome-like induced structures comprise antimicrobial peptides and attenuate intracellular bacterial survival. Mol Biol Cell 2024; 35:ar34. [PMID: 38170582 PMCID: PMC10916861 DOI: 10.1091/mbc.e23-09-0347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 12/07/2023] [Accepted: 12/19/2023] [Indexed: 01/05/2024] Open
Abstract
Immune cells employ diverse mechanisms for host defense. Macrophages, in response to TLR activation, assemble aggresome-like induced structures (ALIS). Our group has shown TLR4-signaling transcriptionally upregulates p62/sequestome1, which assembles ALIS. We have demonstrated that TLR4-mediated autophagy is, in fact, selective-autophagy of ALIS. We hypothesize that TLR-mediated autophagy and ALIS contribute to host-defense. Here we show that ALIS are assembled in macrophages upon exposure to different bacteria. These structures are associated with pathogen-containing phagosomes. Importantly, we present evidence of increased bacterial burden, where ALIS assembly is prevented with p62-specific siRNA. We have employed 3D-super-resolution structured illumination microscopy (3D-SR-SIM) and mass-spectrometric (MS) analyses to gain insight into the assembly of ALIS. Ultra-structural analyses of known constituents of ALIS (p62, ubiquitin, LC3) reveal that ALIS are organized structures with distinct patterns of alignment. Furthermore, MS-analyses of ALIS identified, among others, several proteins of known antimicrobial properties. We have validated MS data by testing the association of some of these molecules (Bst2, IFITM2, IFITM3) with ALIS and the phagocytosed-bacteria. We surmise that AMPs enrichment in ALIS leads to their delivery to bacteria-containing phagosomes and restricts the bacteria. Our findings in this paper support hitherto unknown functions of ALIS in host-defense.
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Affiliation(s)
- Anushree Bhatnagar
- School of Biology, Indian Institute of Science Education and Research Thiruvananthapuram, Maruthamala PO, Vithura, Thiruvananthapuram 695551, Kerala, India
| | - Umesh Chopra
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bengaluru, Karnataka 560012, India
| | - Sebastian Raja
- Laboratory of Molecular Cell Biology, Department of Biotechnology, Indian Institute of Technology-Madras, Chennai 600036, India
| | - Krishanu Dey Das
- School of Biology, Indian Institute of Science Education and Research Thiruvananthapuram, Maruthamala PO, Vithura, Thiruvananthapuram 695551, Kerala, India
| | - S. Mahalingam
- Laboratory of Molecular Cell Biology, Department of Biotechnology, Indian Institute of Technology-Madras, Chennai 600036, India
| | - Dipshikha Chakravortty
- School of Biology, Indian Institute of Science Education and Research Thiruvananthapuram, Maruthamala PO, Vithura, Thiruvananthapuram 695551, Kerala, India
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bengaluru, Karnataka 560012, India
| | - Srinivasa Murty Srinivasula
- School of Biology, Indian Institute of Science Education and Research Thiruvananthapuram, Maruthamala PO, Vithura, Thiruvananthapuram 695551, Kerala, India
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21
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Zhao M, Yin Y, Yang B, Chang M, Ma S, Shi X, Li Q, Li P, Zhang Y. Ameliorative effects of Modified Huangqi Chifeng decoction on podocyte injury via autophagy mediated by PI3K/AKT/mTOR and AMPK/mTOR pathways. JOURNAL OF ETHNOPHARMACOLOGY 2024; 321:117520. [PMID: 38042389 DOI: 10.1016/j.jep.2023.117520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 11/18/2023] [Accepted: 11/26/2023] [Indexed: 12/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Proteinuria is recognized as a risk factor for the exacerbation of chronic kidney disease. Modified Huangqi Chifeng decoction (MHCD) has distinct advantages in reducing proteinuria. Our previous experimental results have shown that MHCD can inhibit excessive autophagy. However, the specific mechanism by which MHCD regulates autophagy needs to be further explored. AIM OF THE STUDY In this study, in vivo and in vitro experiments were conducted to further clarify the protective mechanism of MHCD on the kidney and podocytes by regulating autophagy based on phosphatidylinositol 3-kinase (PI3K)/protein kinase B (AKT)/mammalian target of rapamycin (mTOR) and adenosine monophosphate-activated protein kinase (AMPK)/mTOR signaling pathways. MATERIALS AND METHODS By a single injection via the tail vein, Sprague-Dawley rats received Adriamycin (5 mg/kg) to establish a model of proteinuria nephropathy. They were divided into control, model, MHCD, 3-methyladenine (3 MA), 3 MA + MHCD, and telmisartan groups and were administered continuously for 6 weeks. The MHCD-containing serum was prepared, and a model of podocyte injury induced by Adriamycin (0.2 μg/mL) was established. RESULTS MHCD reduced the 24-h urine protein levels and relieved pathological kidney damage. During autophagy in the kidneys of rats with Adriamycin-induced nephropathy, the PI3K/AKT/mTOR signaling pathway is inhibited, while the AMPK/mTOR signaling pathway is activated. MHCD antagonized these effects, thereby inhibiting excessive autophagy. MHCD alleviated Adriamycin-induced podocyte autophagy, as demonstrated using Pik3r1 siRNA and an overexpression plasmid for Prkaa1/Prkaa2. Furthermore, MHCD could activate the PI3K/AKT/mTOR signaling pathway while suppressing the AMPK/mTOR signaling pathway. CONCLUSIONS This study demonstrated that MHCD can activate the interaction between the PI3K/AKT/mTOR and the AMPK/mTOR signaling pathways to maintain autophagy balance, inhibit excessive autophagy, and play a role in protecting the kidneys and podocytes.
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Affiliation(s)
- Mingming Zhao
- Department of Nephrology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China.
| | - Yundong Yin
- Postdoctoral Research Station, China Academy of Chinese Medical Sciences, Beijing, 100700, China; Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China.
| | - Bin Yang
- Department of Pathology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China.
| | - Meiying Chang
- Department of Nephrology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China.
| | - Sijia Ma
- Department of Nephrology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China.
| | - Xiujie Shi
- Department of Nephrology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China.
| | - Qi Li
- Department of Clinical Laboratory, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China.
| | - Peng Li
- Institute of Basic Medical Sciences, Xiyuan Hospital of China Academy of Chinese Medical Sciences, Beijing, 100091, China; Key Laboratory of Pharmacology of Chinese Materia Medica of Beijing, Beijing, 100091, China.
| | - Yu Zhang
- Department of Nephrology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, 100091, China; Xin-Huangpu Joint Innovation Institute of Chinese Medicine, Guangzhou, 510000, China.
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22
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Aghajani Mir M. Vault RNAs (vtRNAs): Rediscovered non-coding RNAs with diverse physiological and pathological activities. Genes Dis 2024; 11:772-787. [PMID: 37692527 PMCID: PMC10491885 DOI: 10.1016/j.gendis.2023.01.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 01/16/2023] [Indexed: 04/05/2023] Open
Abstract
The physicochemical characteristics of RNA admit non-coding RNAs to perform a different range of biological acts through various mechanisms and are involved in regulating a diversity of fundamental processes. Notably, some reports of pathological conditions have proved abnormal expression of many non-coding RNAs guides the ailment. Vault RNAs are a class of non-coding RNAs containing stem regions or loops with well-conserved sequence patterns that play a fundamental role in the function of vault particles through RNA-ligand, RNA-RNA, or RNA-protein interactions. Taken together, vault RNAs have been proposed to be involved in a variety of functions such as cell proliferation, nucleocytoplasmic transport, intracellular detoxification processes, multidrug resistance, apoptosis, and autophagy, and serve as microRNA precursors and signaling pathways. Despite decades of investigations devoted, the biological function of the vault particle or the vault RNAs is not yet completely cleared. In this review, the current scientific assertions of the vital vault RNAs functions were discussed.
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Affiliation(s)
- Mahsa Aghajani Mir
- Deputy of Research and Technology, Health Research Institute, Babol University of Medical Sciences, Babol 47176-4774, Iran
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23
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McCarty N, Wang Y, Lyu L, Vu T. TRIM44 promotes autophagy through SQSTM1 oligomerization in the response to oxidative stress induced by Arsenic Trioxide in cancer cells. RESEARCH SQUARE 2024:rs.3.rs-3951960. [PMID: 38464079 PMCID: PMC10925436 DOI: 10.21203/rs.3.rs-3951960/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Tripartite motif containing 44 (TRIM44), a deubiquitinase, plays a pivotal role in connecting proteotoxic stress response to autophagic degradation in cancer and neurological diseases. While numerous studies have reported the upregulation of TRIM44 as a prognostic maker in various cancers, the detailed molecular mechanisms through which TRIM44 promotes autophagic degradation remain unclear. Here, we reported that TRIM44 can promote autophagy in response to oxidative stress which results in decreased cytotoxicity in Arsenic Trioxide treated cancer cells. The study focuses on the posttranslational modification of sequestosome-1 (SQSTM1) and its role in enhancing sequestration function during autophagic degradation. We discovered that TRIM44 significantly promotes SQSTM1 oligomerization in PB1 domain-dependent and oxidation-dependent manners. Furthermore, TRIM44 enhances the interaction between protein kinase A (PKA) and oligomerized SQSTM1, leading to increased phosphorylation of SQSTM1 at S349 and subsequent activation of NFE2L2 in response to oxidative stress. Collectively, our data support the potential roles of TRIM44 in the sensitivity of SQSTM1-mediated autophagy in the context of cancer, ageing and ageing-associated diseases, as well as neurodegenerative diseases.
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24
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Chen B, Liu X, Wu S, Hou J, Shang P, Chamba Y, Mehmood K, Fouad D, Li Y, Zhang H. Inhalation of ammonia promotes apoptosis and induces autophagy in hepatocytes via Bax/BCl-2 and m-TOR/ATG5/LC-3bII axes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169036. [PMID: 38061639 DOI: 10.1016/j.scitotenv.2023.169036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/20/2023] [Accepted: 11/30/2023] [Indexed: 01/18/2024]
Abstract
Ammonia (NH3) is an irritating gas and atmospheric pollutant that endangers the health of humans and animals by stimulating respiratory tract's mucosa and causing liver damage. However, physiological role of ammonia gas in hepatotoxicity remains unclear. To investigate the hepatotoxic effects of inhaled ammonia gas, experiments were conducted using mouse model exposed to 100 ppm of ammonia gas for 21 days. The exposed mice exhibited signs of depression, emaciation, and reduced growth. This study revealed that inhalation of ammonia led to significant decrease in water (P < 0.0001) and food intake (P < 0.05), resulting in slower growth. Histopathological analysis showed that ammonia stress alters the microstructure of the liver by enlarging the gap between hepatic lobule and fibrosis. Moreover, ammonia-induced stress significantly reduces the expression of the anti-apoptotic protein BCl-2 (P < 0.001), while elevates the mRNA expression of the pro-apoptotic gene Bax (P < 0.001). Furthermore, ammonia inhalation significantly increases the protein expression of LC-3bII (P < 0.05) and the mRNA expression of autophagy-related gene 5 (ATG5) (P < 0.05) and p62 (P < 0.05) while remarkably decreases the mRNA expression of mammalian target of rapamycin (m-TOR) (P < 0.05). In conclusion, this study demonstrates that inhalation of ammonia gas causes liver damage and suggests autophagy happening via m-TOR/p62/LC-3bII and pro-apoptosis effect mediated by Bax/BCl-2 in the liver damage caused by ammonia inhalation. Our study provides a new perspective on ammonia-induced hepatotoxicity.
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Affiliation(s)
- Bohan Chen
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Xiaoqing Liu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Shouyan Wu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Junhong Hou
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Peng Shang
- Animal Science College, Tibet Agriculture & Animal Husbandry University, Linzhi 860000, China
| | - Yangzom Chamba
- Animal Science College, Tibet Agriculture & Animal Husbandry University, Linzhi 860000, China
| | - Khalid Mehmood
- Faculty of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, 63100, Pakistan
| | - Dalia Fouad
- Department of Zoology, College of Science, King Saud University, PO Box 22452, Riyadh 11495, Saudi Arabia
| | - Ying Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Hui Zhang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China.
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25
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Tian X, Gu L, Zeng F, Liu X, Zhou Y, Dou Y, Han J, Zhao Y, Zhang Y, Luo Q, Wang F. Strophanthidin Induces Apoptosis of Human Lung Adenocarcinoma Cells by Promoting TRAIL-DR5 Signaling. Molecules 2024; 29:877. [PMID: 38398629 PMCID: PMC10892344 DOI: 10.3390/molecules29040877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/08/2024] [Accepted: 02/08/2024] [Indexed: 02/25/2024] Open
Abstract
Strophanthidin (SPTD), one of the cardiac glycosides, is refined from traditional Chinese medicines such as Semen Lepidii and Antiaris toxicaria, and was initially used for the treatment of heart failure disease in clinic. Recently, SPTD has been shown to be a potential anticancer agent, but the underlying mechanism of action is poorly understood. Herein, we explored the molecular mechanism by which SPTD exerts anticancer effects in A549 human lung adenocarcinoma cells by means of mass spectrometry-based quantitative proteomics in combination with bioinformatics analysis. We revealed that SPTD promoted the expression of tumor necrosis factor (TNF)-related apoptosis-inducing ligand receptor 2 (TRAIL-R2, or DR5) in A549 cells to activate caspase 3/6/8, in particular caspase 3. Consequently, the activated caspases elevated the expression level of apoptotic chromatin condensation inducer in the nucleus (ACIN1) and prelamin-A/C (LMNA), ultimately inducing apoptosis via cooperation with the SPTD-induced overexpressed barrier-to-autointegration factor 1 (Banf1). Moreover, the SPTD-induced DEPs interacted with each other to downregulate the p38 MAPK/ERK signaling, contributing to the SPTD inhibition of the growth of A549 cells. Additionally, the downregulation of collagen COL1A5 by SPTD was another anticancer benefit of SPTD through the modulation of the cell microenvironment.
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Affiliation(s)
- Xiao Tian
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, China;
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, National Centre for Mass Spectrometry in Beijing, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (L.G.); (X.L.); (Y.Z.); (Y.D.); (J.H.); (Y.Z.); (Y.Z.)
| | - Liangzhen Gu
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, National Centre for Mass Spectrometry in Beijing, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (L.G.); (X.L.); (Y.Z.); (Y.D.); (J.H.); (Y.Z.); (Y.Z.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fangang Zeng
- School of Environment of Natural Resources, Remin University of China, Beijing 100875, China;
| | - Xingkai Liu
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, National Centre for Mass Spectrometry in Beijing, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (L.G.); (X.L.); (Y.Z.); (Y.D.); (J.H.); (Y.Z.); (Y.Z.)
| | - Yang Zhou
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, National Centre for Mass Spectrometry in Beijing, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (L.G.); (X.L.); (Y.Z.); (Y.D.); (J.H.); (Y.Z.); (Y.Z.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yang Dou
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, National Centre for Mass Spectrometry in Beijing, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (L.G.); (X.L.); (Y.Z.); (Y.D.); (J.H.); (Y.Z.); (Y.Z.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Juanjuan Han
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, National Centre for Mass Spectrometry in Beijing, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (L.G.); (X.L.); (Y.Z.); (Y.D.); (J.H.); (Y.Z.); (Y.Z.)
| | - Yao Zhao
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, National Centre for Mass Spectrometry in Beijing, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (L.G.); (X.L.); (Y.Z.); (Y.D.); (J.H.); (Y.Z.); (Y.Z.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yanyan Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, National Centre for Mass Spectrometry in Beijing, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (L.G.); (X.L.); (Y.Z.); (Y.D.); (J.H.); (Y.Z.); (Y.Z.)
| | - Qun Luo
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, National Centre for Mass Spectrometry in Beijing, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (L.G.); (X.L.); (Y.Z.); (Y.D.); (J.H.); (Y.Z.); (Y.Z.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fuyi Wang
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250355, China;
- Beijing National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, National Centre for Mass Spectrometry in Beijing, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; (L.G.); (X.L.); (Y.Z.); (Y.D.); (J.H.); (Y.Z.); (Y.Z.)
- University of Chinese Academy of Sciences, Beijing 100049, China
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26
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Feng J, Li Y, Zhang Y, Sun S, Sun J, Xu Q, Ji X, Liu Y, Wan Q. Endothelium-specific deletion of p62 causes organ fibrosis and cardiac dysfunction. J Transl Med 2024; 22:161. [PMID: 38365674 PMCID: PMC10870664 DOI: 10.1186/s12967-024-04946-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 02/02/2024] [Indexed: 02/18/2024] Open
Abstract
BACKGROUND The autophagy adapter SQSTM1/p62 is crucial for maintaining homeostasis in various organs and cells due to its protein-protein interaction domains and involvement in diverse physiological and pathological processes. Vascular endothelium cells play a unique role in vascular biology and contribute to vascular health. METHODS Using the Cre-loxP system, we generated mice with endothelium cell-specific knockout of p62 mediated by Tek (Tek receptor tyrosine kinase)-cre to investigate the essential role of p62 in the endothelium. In vitro, we employed protein mass spectrometry and IPA to identify differentially expressed proteins upon knockdown of p62. Immunoprecipitation assays were conducted to demonstrate the interaction between p62 and FN1 or LAMC2 in human umbilical vein endothelium cells (HUVECs). Additionally, we identified the degradation pathway of FN1 and LAMC2 using the autophagy inhibitor 3-methyladenine (3-MA) or proteasome inhibitor MG132. Finally, the results of immunoprecipitation demonstrated that the interaction between p62 and LAMC2 was abolished in the PB1 truncation group of p62, while the interaction between p62 and FN1 was abolished in the UBA truncation group of p62. RESULTS Our findings revealed that p62 Endo mice exhibited heart, lung, and kidney fibrosis compared to littermate controls, accompanied by severe cardiac dysfunction. Immunoprecipitation assays provided evidence of p62 acting as an autophagy adapter in the autophagy-lysosome pathway for FN1 and LAMC2 degradation respectively through PB1 and UBA domain with these proteins rather than proteasome system. CONCLUSIONS Our study demonstrates that defects in p62 within endothelium cells induce multi-organ fibrosis and cardiac dysfunction in mice. Our findings indicate that FN1 and LAMC2, as markers of (EndoMT), have detrimental effects on HUVECs and elucidate the autophagy-lysosome degradation mechanism of FN1 and LAMC2.
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Affiliation(s)
- Jing Feng
- Key Laboratory of Cell Metabolism in Medical and Health of Shandong Provincial Health Commission, Jinan Central Hospital, Shandong University, Jinan, 250021, Shandong, China
- Qingdao Central Hospital, Shandong University, Qingdao, 266042, Shandong, China
| | - Yan Li
- Department of Pulmonary and Critical Care Medicine, The Second Hospital of Shandong University, Jinan, 250033, Shandong, China
| | - Yu Zhang
- Department of Pulmonary and Critical Care Medicine, Shandong Provincial Hospital, Shandong University, Jinan, 250021, Shandong, China
| | - Shengnan Sun
- Key Laboratory of Cell Metabolism in Medical and Health of Shandong Provincial Health Commission, Jinan Central Hospital, Shandong University, Jinan, 250021, Shandong, China
| | - Jian Sun
- Department of Pulmonary and Critical Care Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
- Shandong Key Laboratory of Infections Respiratory Disease, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, 250021, Shandong, China
| | - Quanlin Xu
- Department of Pulmonary and Critical Care Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
- Shandong Key Laboratory of Infections Respiratory Disease, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, 250021, Shandong, China
| | - Xingzhao Ji
- Department of Pulmonary and Critical Care Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China.
- Shandong Key Laboratory of Infections Respiratory Disease, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, 250021, Shandong, China.
| | - Yi Liu
- Department of Pulmonary and Critical Care Medicine, Shandong Provincial Hospital, Shandong University, Jinan, 250021, Shandong, China.
- Department of Pulmonary and Critical Care Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China.
- Shandong Key Laboratory of Infections Respiratory Disease, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, 250021, Shandong, China.
| | - Qiang Wan
- Key Laboratory of Cell Metabolism in Medical and Health of Shandong Provincial Health Commission, Jinan Central Hospital, Shandong University, Jinan, 250021, Shandong, China.
- Key Laboratory of Cell Metabolism in Medical and Health of Shandong Provincial Health Commission, Central Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China.
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Li C, Yin X, Xue P, Wang F, Song R, Song Q, Su J, Zhang H. Apoptosis and autophagy of muscle cell during pork postmortem aging. Anim Biosci 2024; 37:284-294. [PMID: 37905320 PMCID: PMC10766493 DOI: 10.5713/ab.23.0148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 06/02/2023] [Accepted: 09/06/2023] [Indexed: 11/02/2023] Open
Abstract
OBJECTIVE Pork is an important source of animal protein in many countries. Subtle physiochemical changes occur during pork postmortem aging. The changes of apoptosis and autophagy in pork at 6 h to 72 h after slaughter were studied to provide evidence for pork quality. METHODS In this article, morphological changes of postmortem pork was observed through Hematoxylin-eosin staining, apoptotic nuclei were observed by TdT-mediated dUTP nick end labeling assay, protein related to apoptosis and autophagy expressions were tested by western blot and LC3 level were expressed according to immunofluorescence assay. RESULTS In this study, we found the occurrence of apoptosis in postmortem pork, and the process was characterized by nucleus condensation and fragmentation, formation of apoptotic bodies, increase in apoptosis-related Bax/Bcl-2 levels, and activation of caspases. Autophagy reached its peak between 24 and 48 h after slaughter, accompanied by the formation of autophagosomes on the cell membrane and expression of autophagy-related proteins beclin-1, P62, LC3-I, LC3-II, and ATG5. CONCLUSION Obvious apoptosis was observed at 12 h and autophagy reached its peak at 48 h. The present work provides the evidence for the occurrence of apoptosis and autophagy during postmortem aging of pork. In conclusion, the apoptosis and autophagy of muscle cells discovered in this study have important implications for pork in the meat industry.
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Affiliation(s)
- Chunmei Li
- College of Food Science and Engineering, Yangzhou University, Yangzhou 225009,
China
- Key Laboratory of Chinese Cuisine Intangible Cultural Heritage Technology Inheritance, Ministry of Culture and Tourism, Yangzhou University, Yangzhou 225009,
China
| | - Xialian Yin
- College of Food Science and Engineering, Yangzhou University, Yangzhou 225009,
China
| | - Panpan Xue
- Jiangsu Food & Pharmaceutical Science College, Huaian 223023,
China
| | - Feng Wang
- College of Food Science and Engineering, Yangzhou University, Yangzhou 225009,
China
| | - Ruilong Song
- Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, Yangzhou 225009,
China
- Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, Yangzhou University, Yangzhou 225009,
China
| | - Qi Song
- College of Food Science and Engineering, Yangzhou University, Yangzhou 225009,
China
| | - Jiamin Su
- College of Food Science and Engineering, Yangzhou University, Yangzhou 225009,
China
| | - Haifeng Zhang
- College of Food Science and Engineering, Yangzhou University, Yangzhou 225009,
China
- Key Laboratory of Chinese Cuisine Intangible Cultural Heritage Technology Inheritance, Ministry of Culture and Tourism, Yangzhou University, Yangzhou 225009,
China
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Wu S, Lu J, Zhu H, Wu F, Mo Y, Xie L, Song C, Liu L, Xie X, Li Y, Lin H, Tang H. A novel axis of circKIF4A-miR-637-STAT3 promotes brain metastasis in triple-negative breast cancer. Cancer Lett 2024; 581:216508. [PMID: 38029538 DOI: 10.1016/j.canlet.2023.216508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 11/07/2023] [Accepted: 11/20/2023] [Indexed: 12/01/2023]
Abstract
Among patients with triple-negative breast cancer (TNBC), distant metastasis is the leading cause of death. Our previous studies have shown that TNBC progression is greatly facilitated by circKIF4A, but uncertainty remains regarding its role in TNBC brain metastasis and the molecular mechanism. In this study, we found notable upregulation of circKIF4A in TNBC cell lines and brain metastases. Inhibition of circKIF4A impaired the ability of TNBC to proliferate, migrate, and cause brain metastasis. Luciferase reporter assays confirmed that circKIF4A competed for binding to miR-637 with STAT3 3' UTR. Western blot analysis revealed that inhibition of circKIF4A decreased STAT3 and p62 expression, while increased the LC3B-II/LC3B-I ratio and the expression of Beclin, indicating that downregulation of circKIF4A induced autophagy by competing with STAT3 for binding to miR-637. By employing a competitive endogenous RNA (ceRNA) mechanism, the circKIF4A-miR-637-STAT3 axis coordinates brain metastasis in TNBC. circKIF4A can therefore be used as a prognostic biomarker for brain metastasis in TNBC and as a therapeutic target.
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Affiliation(s)
- Song Wu
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Jibu Lu
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Hongbo Zhu
- The First Affiliated Hospital of Hengyang Medical School, University of South China, Hengyang, China
| | - Feiyue Wu
- Guizhou Provincial People's Hospital, Guiyang, China
| | - Yunxian Mo
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Liming Xie
- The First Affiliated Hospital of Hengyang Medical School, University of South China, Hengyang, China
| | - Cailu Song
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Lingrui Liu
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Xiaoming Xie
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Yuehua Li
- The First Affiliated Hospital of Hengyang Medical School, University of South China, Hengyang, China.
| | - Huan Lin
- The Affiliated TCM Hospital of Guangzhou Medical University, Guangzhou, China.
| | - Hailin Tang
- State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China.
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Das N, Mukherjee S, Das A, Gupta P, Bandyopadhyay A, Chattopadhyay S. Intra-tumor ROS amplification by melatonin interferes in the apoptosis-autophagy-inflammation-EMT collusion in the breast tumor microenvironment. Heliyon 2024; 10:e23870. [PMID: 38226217 PMCID: PMC10788523 DOI: 10.1016/j.heliyon.2023.e23870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 11/21/2023] [Accepted: 12/14/2023] [Indexed: 01/17/2024] Open
Abstract
Epidemiological as well as experimental studies have established that the pineal hormone melatonin has inhibitory effects on different types of cancers. Several mechanisms have been proposed for the anticancer activities of melatonin, but the fundamental molecular pathways still require clarity. We developed a mouse model of breast cancer using Ehrlich's ascites carcinoma (injected in the 4th mammary fat pad of female Swiss albino mice) and investigated the possibility of targeting the autophagy-inflammation-EMT colloquy to restrict breast tumor progression using melatonin as intervention. Contrary to its conventional antioxidant role, melatonin was shown to augment intracellular ROS and initiate ROS-dependent apoptosis in our system, by modulating the p53/JNK & NF-κB/pJNK expressions/interactions. Melatonin-induced ROS promoted SIRT1 activity. Interplay between SIRT1 and NF-κB/p65 is known to play a pivotal role in regulating the crosstalk between autophagy and inflammation. Persistent inflammation in the tumor microenvironment and subsequent activation of the IL-6/STAT3/NF-κB feedback loop promoted EMT and suppression of autophagy through activation of PI3K/Akt/mTOR signaling pathway. Melatonin disrupted NF-κB/SIRT1 interactions blocking IL-6/STAT3/NF-κB pathway. This led to reversal of pro-inflammatory bias in the breast tumor microenvironment and augmented autophagic responses. The interactions between p62/Twist1, NF-κB/Beclin1 and NF-κB/Slug were altered by melatonin to strike a balance between autophagy, inflammation and EMT, leading to tumor regression. This study provides critical insights into how melatonin could be utilized in treating breast cancer via inhibition of the PI3K/Akt/mTOR signaling and differential modulation of SIRT1 and NF-κB proteins, leading to the establishment of apoptotic and autophagic fates in breast cancer cells.
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Affiliation(s)
- Nirmal Das
- Department of Physiology, University of Calcutta, 92, A.P.C. Road, Kolkata, West Bengal 700009, India
| | - Sudeshna Mukherjee
- Department of Physiology, University of Calcutta, 92, A.P.C. Road, Kolkata, West Bengal 700009, India
- Department of Physiology and Allied Sciences, Amity Institute of Health Allied Sciences, Amity University, Uttar Pradesh, India
| | - Ankur Das
- Department of Physiology, University of Calcutta, 92, A.P.C. Road, Kolkata, West Bengal 700009, India
| | - Payal Gupta
- Department of Physiology, University of Calcutta, 92, A.P.C. Road, Kolkata, West Bengal 700009, India
| | - Amit Bandyopadhyay
- Department of Physiology, University of Calcutta, 92, A.P.C. Road, Kolkata, West Bengal 700009, India
| | - Sreya Chattopadhyay
- Department of Physiology, University of Calcutta, 92, A.P.C. Road, Kolkata, West Bengal 700009, India
- Centre for Research in Nanoscience and Nanotechnology (CRNN), University of Calcutta, JD-2, Salt Lake, Sector III, Kolkata-700098, India
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30
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Xie J, Meijer AH. Xenophagy receptors Optn and p62 and autophagy modulator Dram1 independently promote the zebrafish host defense against Mycobacterium marinum. Front Cell Infect Microbiol 2024; 13:1331818. [PMID: 38264729 PMCID: PMC10803470 DOI: 10.3389/fcimb.2023.1331818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 12/18/2023] [Indexed: 01/25/2024] Open
Abstract
Anti-bacterial autophagy, also known as xenophagy, is a crucial innate immune process that helps maintain cellular homeostasis by targeting invading microbes. This defense pathway is widely studied in the context of infections with mycobacteria, the causative agents of human tuberculosis and tuberculosis-like disease in animal models. Our previous work in a zebrafish tuberculosis model showed that host defense against Mycobacterium marinum (Mm) is impaired by deficiencies in xenophagy receptors, optineurin (Optn) or sequestome 1 (p62), and Damage-regulated autophagy modulator 1 (Dram1). However, the interdependency of these receptors and their interaction with Dram1 remained unknown. In the present study, we used single and double knockout zebrafish lines in combination with overexpression experiments. We show that Optn and p62 can compensate for the loss of each other's function, as their overexpression restores the infection susceptibility of the mutant phenotypes. Similarly, Dram1 can compensate for deficiencies in Optn and p62, and, vice versa, Optn and p62 compensate for the loss of Dram1, indicating that these xenophagy receptors and Dram1 do not rely on each other for host defense against Mm. In agreement, Dram1 overexpression in optn/p62 double mutants restored the interaction of autophagosome marker Lc3 with Mm. Finally, optn/p62 double mutants displayed more severe infection susceptibility than the single mutants. Taken together, these results suggest that Optn and p62 do not function downstream of each other in the anti-mycobacterial xenophagy pathway, and that the Dram1-mediated defense against Mm infection does not rely on specific xenophagy receptors.
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Xia Q, Xie J, Zhang J, Zhang L, Zhou Y, Zhu B, Wu Y, Yang Z, Li J. Ovatodiolide induces autophagy-mediated cell death through the p62-Keap1-Nrf2 signaling pathway in chronic myeloid leukemia cells. Chem Biol Interact 2024; 387:110819. [PMID: 38000454 DOI: 10.1016/j.cbi.2023.110819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 11/08/2023] [Accepted: 11/20/2023] [Indexed: 11/26/2023]
Abstract
Ovatodiolide is a macrocyclic diterpenoid compound with various biological activities that displays considerable anticancer potential in different tumor models. However, the underlying mechanism for this antineoplastic activity remains unclear. The aim of the present study was to investigate the anticancer effect and possible molecular mechanism of ovatodiolide in human chronic myeloid leukemia (CML). Ovatodiolide suppressed cell colony formation and induced apoptosis in the K562 and KU812 cells. We also observed that ovatodiolide enhanced the production of reactive oxygen species (ROS), activated Nrf2 signaling, and inhibited mTOR phosphorylation. Autophagic flux was shown to be enhanced after treatment with ovatodiolide in K562 cells. Furthermore, autophagy inhibition alleviated ovatodiolide-induced cell apoptosis, whereas autophagy promotion aggravated apoptosis in CML cells. These results demonstrated that ovatodiolide activates autophagy-mediated cell death in CML cells. Additionally, ovatodiolide transcriptionally activated the expression of p62, and the p62 levels were negatively regulated by autophagy. Moreover, p62-Keap1-Nrf2 signaling was confirmed to be involved in ovatodiolide-induced cell death. Accordingly, LC3B knockdown augmented the ovatodiolide-induced p62 expression, increased the p62-Keap1 interaction, and enhanced the translocation of Nrf2 into the nucleus. In contrast, p62 inhibition abolished the effects that were induced through ovatodiolide treatment. Nrf2 inhibition with ML385 diminished the protective effect of autophagy inhibition in CML cells. Collectively, our results indicate that ovatodiolide induces oxidative stress and provokes autophagy, which effectively decreases the expression of p62 and weakens the protective effect of Nrf2 signaling activation, thus contributing to apoptosis in CML cells.
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Affiliation(s)
- Qingqing Xia
- Department of Laboratory Medicine, Huangyan Hospital of Wenzhou Medical University, Taizhou First People's Hospital, Taizhou, Zhejiang Province, China
| | - Jing Xie
- Department of Laboratory Medicine, Huangyan Hospital of Wenzhou Medical University, Taizhou First People's Hospital, Taizhou, Zhejiang Province, China
| | - Jianguo Zhang
- Department of Laboratory Medicine, Huangyan Hospital of Wenzhou Medical University, Taizhou First People's Hospital, Taizhou, Zhejiang Province, China
| | - Lingmin Zhang
- Department of Laboratory Medicine, Huangyan Hospital of Wenzhou Medical University, Taizhou First People's Hospital, Taizhou, Zhejiang Province, China
| | - Yingying Zhou
- Department of Laboratory Medicine, Huangyan Hospital of Wenzhou Medical University, Taizhou First People's Hospital, Taizhou, Zhejiang Province, China
| | - Bihong Zhu
- Department of Neurology, Huangyan Hospital of Wenzhou Medical University, Taizhou First People's Hospital, Taizhou, Zhejiang Province, China
| | - Yanfang Wu
- Department of Hematology, The First People's Hospital of Fuyang, Hangzhou, Zhejiang Province, China
| | - Zaixing Yang
- Department of Laboratory Medicine, Huangyan Hospital of Wenzhou Medical University, Taizhou First People's Hospital, Taizhou, Zhejiang Province, China.
| | - Jie Li
- Department of Laboratory Medicine, Huangyan Hospital of Wenzhou Medical University, Taizhou First People's Hospital, Taizhou, Zhejiang Province, China.
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Shuey A, Patricelli C, Oxford JT, Pu X. Effects of doxorubicin on autophagy in fibroblasts. Hum Exp Toxicol 2024; 43:9603271241231947. [PMID: 38324556 DOI: 10.1177/09603271241231947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Objectives: Doxorubicin (DOX) is a highly effective chemotherapeutic used to treat many adult and pediatric cancers, such as solid tumors, leukemia, lymphomas and breast cancer. It can also cause injuries to multiple organs, including the heart, liver, and brain or kidney, although cardiotoxicity is the most prominent side effect of DOX. In this study, we examined the potential effects of DOX on autophagy activity in two different mouse fibroblasts.Methods: Mouse embryonic fibroblasts (NIH3T3) and mouse primary cardiac fibroblasts (CFs) were treated with DOX to assess changes in the expression of two commonly used autophagy protein markers, LC3II and p62. We also examined the effects of DOX the on expression of key genes that encode components of the molecular machinery and regulators modulating autophagy in response to both extracellular and intracellular signals.Results: We observed that LC3II levels increased and p62 levels decreased following the DOX treatment in NIH3T3 cells. However, similar effects were not observed in primary cardiac fibroblasts. In addition, DOX treatment induced the upregulation of a significant number of genes involved in autophagy in NIH3T3 cells, but not in primary cardiac fibroblasts.Conclusions: Taken together, these results indicate that DOX upregulates autophagy in fibroblasts in a cell-specific manner.
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Affiliation(s)
- Anna Shuey
- Biomolecular Sciences Graduate Programs, Boise State University, Boise, ID, USA
| | - Conner Patricelli
- Biomolecular Sciences Graduate Programs, Boise State University, Boise, ID, USA
| | - Julia T Oxford
- Biomolecular Sciences Graduate Programs, Boise State University, Boise, ID, USA
- Biomolecular Research Center, Boise State University, Boise, ID, USA
- Department of Biological Sciences, Boise State University, Boise, ID, USA
| | - Xinzhu Pu
- Biomolecular Research Center, Boise State University, Boise, ID, USA
- Department of Biological Sciences, Boise State University, Boise, ID, USA
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Yang YH, Li W, Ren LW, Yang H, Zhang YZ, Zhang S, Hao Y, Yu DK, Tong RS, Du GH, Shi JY, Wang JH. S670, an amide derivative of 3-O-acetyl-11-keto-β-boswellic acid, induces ferroptosis in human glioblastoma cells by generating ROS and inhibiting STX17-mediated fusion of autophagosome and lysosome. Acta Pharmacol Sin 2024; 45:209-222. [PMID: 37749236 PMCID: PMC10770369 DOI: 10.1038/s41401-023-01157-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 08/25/2023] [Indexed: 09/27/2023] Open
Abstract
Glioblastoma (GBM) is the most common malignant tumor in the brain with temozolomide (TMZ) as the only approved chemotherapy agent. GBM is characterized by susceptibility to radiation and chemotherapy resistance and recurrence as well as low immunological response. There is an urgent need for new therapy to improve the outcome of GBM patients. We previously reported that 3-O-acetyl-11-keto-β-boswellic acid (AKBA) inhibited the growth of GBM. In this study we characterized the anti-GBM effect of S670, a synthesized amide derivative of AKBA, and investigated the underlying mechanisms. We showed that S670 dose-dependently inhibited the proliferation of human GBM cell lines U87 and U251 with IC50 values of around 6 μM. Furthermore, we found that S670 (6 μM) markedly stimulated mitochondrial ROS generation and induced ferroptosis in the GBM cells. Moreover, S670 treatment induced ROS-mediated Nrf2 activation and TFEB nuclear translocation, promoting protective autophagosome and lysosome biogenesis in the GBM cells. On the other hand, S670 treatment significantly inhibited the expression of SXT17, thus impairing autophagosome-lysosome fusion and blocking autophagy flux, which exacerbated ROS accumulation and enhanced ferroptosis in the GBM cells. Administration of S670 (50 mg·kg-1·d-1, i.g.) for 12 days in a U87 mouse xenograft model significantly inhibited tumor growth with reduced Ki67 expression and increased LC3 and LAMP2 expression in the tumor tissues. Taken together, S670 induces ferroptosis by generating ROS and inhibiting STX17-mediated fusion of autophagosome and lysosome in GBM cells. S670 could serve as a drug candidate for the treatment of GBM.
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Affiliation(s)
- Yi-Hui Yang
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing, 100050, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Wan Li
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing, 100050, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Li-Wen Ren
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing, 100050, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Hong Yang
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing, 100050, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Yi-Zhi Zhang
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing, 100050, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Sen Zhang
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing, 100050, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Yue Hao
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing, 100050, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Dong-Ke Yu
- Department of Pharmacy, Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610072, China
| | - Rong-Sheng Tong
- Department of Pharmacy, Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610072, China
| | - Guan-Hua Du
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing, 100050, China
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China
| | - Jian-You Shi
- Department of Pharmacy, Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, 610072, China.
| | - Jin-Hua Wang
- The State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Beijing, 100050, China.
- Key Laboratory of Drug Target Research and Drug Screen, Institute of Materia Medica, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China.
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Zhang H, Gao Y, Wang C, Huang X, Li T, Li K, Peng R, Li F, Li L, Zhang X, Yin L, Zhang S, Zhang J. NCOA4-mediated ferritinophagy aggravate intestinal oxidative stress and ferroptosis after traumatic brain injury. Biochem Biophys Res Commun 2023; 688:149065. [PMID: 37979398 DOI: 10.1016/j.bbrc.2023.09.093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 09/29/2023] [Accepted: 09/29/2023] [Indexed: 11/20/2023]
Abstract
Intestinal injury caused by traumatic brain injury (TBI) seriously affects patient prognosis; however, the underlying mechanisms are unknown. Recent studies have demonstrated that ferritinophagy-mediated ferroptosis is involved in several intestinal disorders. However, uncertainty persists regarding the role of ferritinophagy-mediated ferroptosis in the intestinal damage caused by TBI. High-throughput transcriptional sequencing was used to identify the genes that were differentially expressed in the intestine after TBI. The intestinal tissues were harvested for hematoxylin and eosin staining (HE), immunofluorescence, and western blot (WB). Lipid peroxide markers and iron content in the intestines were determined using the corresponding kits. High throughput sequencing revealed that the ferroptosis signaling pathway was enriched, demonstrating that intestinal damage caused by TBI may include ferroptosis. Chiu's score, tight junction proteins, and lipid peroxide indicators demonstrated that TBI caused an intestinal mucosal injury that persisted for several days. The ferroptosis pathway-related proteins, ferritin heavy polypeptide 1 (Fth1) and glutathione peroxidase 4 (GPX4), exhibited dynamic changes. The results indicated that lipid peroxide products were markedly increased, whereas antioxidant enzymes were markedly decreased. WB analysis demonstrated that the expression levels of nuclear receptor coactivator 4 (NCOA4), LC3II/LC3I, and p62 were markedly upregulated, whereas those of GPX4 and Fth1 were markedly downregulated. In addition, ferrostatin-1 attenuates intestinal ferroptosis and injury post-TBI in vivo. Intriguingly, 3-methyladenine (3-MA) reduces intestinal ferritin decomposition, iron accumulation, and ferroptosis after TBI. Moreover, 3-MA markedly reduced intestinal apoptosis. In conclusion, NCOA4 mediated ferritinophagy and ferroptosis play roles in intestinal oxidative stress injury post-TBI. This study provides a deeper understanding of the mechanisms underlying intestinal damage following TBI.
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Affiliation(s)
- Hejun Zhang
- Key Laboratory of Post-Neurotrauma Neurorepair and Regeneration in Central Nervous System, Ministry of Education and Tianjin Neurological Institute, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052, PR China; Department of Neurosurgery, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052, PR China; Department of Neurosurgery, First Hospital of Qinhuangdao, Qinhuangdao, Hebei Province, 066000, PR China
| | - Yalong Gao
- Department of Neurosurgery, Tianjin Huanhu Hospital, 6 Jizhao Road, Tianjin, 300350, PR China
| | - Cong Wang
- Key Laboratory of Post-Neurotrauma Neurorepair and Regeneration in Central Nervous System, Ministry of Education and Tianjin Neurological Institute, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052, PR China; Department of Neurosurgery, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052, PR China
| | - Xingqi Huang
- Key Laboratory of Post-Neurotrauma Neurorepair and Regeneration in Central Nervous System, Ministry of Education and Tianjin Neurological Institute, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052, PR China; Department of Neurosurgery, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052, PR China
| | - Tuo Li
- Key Laboratory of Post-Neurotrauma Neurorepair and Regeneration in Central Nervous System, Ministry of Education and Tianjin Neurological Institute, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052, PR China; Department of Neurosurgery, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052, PR China; Department of Neurosurgery, Yantai Yuhuangding Hospital, Yantai, Shandong Province, 264000, PR China
| | - Kaiji Li
- Key Laboratory of Post-Neurotrauma Neurorepair and Regeneration in Central Nervous System, Ministry of Education and Tianjin Neurological Institute, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052, PR China; Department of Neurosurgery, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052, PR China
| | - Ruilong Peng
- Key Laboratory of Post-Neurotrauma Neurorepair and Regeneration in Central Nervous System, Ministry of Education and Tianjin Neurological Institute, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052, PR China; Department of Neurosurgery, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052, PR China
| | - Fanjian Li
- Key Laboratory of Post-Neurotrauma Neurorepair and Regeneration in Central Nervous System, Ministry of Education and Tianjin Neurological Institute, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052, PR China; Department of Neurosurgery, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052, PR China
| | - Lei Li
- Key Laboratory of Post-Neurotrauma Neurorepair and Regeneration in Central Nervous System, Ministry of Education and Tianjin Neurological Institute, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052, PR China; Department of Neurosurgery, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052, PR China
| | - Xu Zhang
- Key Laboratory of Post-Neurotrauma Neurorepair and Regeneration in Central Nervous System, Ministry of Education and Tianjin Neurological Institute, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052, PR China; Department of Neurosurgery, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052, PR China; Medical College of Nankai University, Tianjin, 300000, PR China
| | - Lichuan Yin
- Characteristic Medical Center of Chinese People's Armed Police Force, PR China
| | - Shu Zhang
- Key Laboratory of Post-Neurotrauma Neurorepair and Regeneration in Central Nervous System, Ministry of Education and Tianjin Neurological Institute, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052, PR China; Department of Neurosurgery, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052, PR China.
| | - Jianning Zhang
- Key Laboratory of Post-Neurotrauma Neurorepair and Regeneration in Central Nervous System, Ministry of Education and Tianjin Neurological Institute, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052, PR China; Department of Neurosurgery, Tianjin Medical University General Hospital, 154 Anshan Road, Tianjin, 300052, PR China.
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Takeda K, Sakai-Sakasai A, Kajinami K, Takeuchi M. A Novel Approach: Investigating the Intracellular Clearance Mechanism of Glyceraldehyde-Derived Advanced Glycation End-Products Using the Artificial Checkpoint Kinase 1 d270KD Mutant as a Substrate Model. Cells 2023; 12:2838. [PMID: 38132156 PMCID: PMC10741459 DOI: 10.3390/cells12242838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/04/2023] [Accepted: 12/12/2023] [Indexed: 12/23/2023] Open
Abstract
Advanced glycation end-products (AGEs), formed through glyceraldehyde (GA) as an intermediate in non-enzymatic reactions with intracellular proteins, are cytotoxic and have been implicated in the pathogenesis of various diseases. Despite their significance, the mechanisms underlying the degradation of GA-derived AGEs (GA-AGEs) remain unclear. In the present study, we found that N-terminal checkpoint kinase 1 cleavage products (CHK1-CPs) and their mimic protein, d270WT, were degraded intracellularly post-GA exposure. Notably, a kinase-dead d270WT variant (d270KD) underwent rapid GA-induced degradation, primarily via the ubiquitin-proteasome pathway. The high-molecular-weight complexes formed by the GA stimulation of d270KD were abundant in the RIPA-insoluble fraction, which also contained high levels of GA-AGEs. Immunoprecipitation experiments indicated that the high-molecular-weight complexes of d270KD were modified by GA-AGEs and that p62/SQSTM1 was one of its components. The knockdown of p62 or treatment with chloroquine reduced the amount of high-molecular-weight complexes in the RIPA-insoluble fraction, indicating its involvement in the formation of GA-AGE aggregates. The present results suggest that the ubiquitin-proteasome pathway and p62 play a role in the degradation and aggregation of intracellular GA-AGEs. This study provides novel insights into the mechanisms underlying GA-AGE metabolism and may lead to the development of novel therapeutic strategies for diseases associated with the accumulation of GA-AGEs.
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Affiliation(s)
- Kenji Takeda
- Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, 1-1 Daigaku, Uchinada-Machi, Ishikawa 920-0293, Japan; (A.S.-S.); (M.T.)
- Department of Cardiology, Kanazawa Medical University, 1-1 Daigaku, Uchinada-Machi, Ishikawa 920-0293, Japan;
| | - Akiko Sakai-Sakasai
- Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, 1-1 Daigaku, Uchinada-Machi, Ishikawa 920-0293, Japan; (A.S.-S.); (M.T.)
| | - Kouji Kajinami
- Department of Cardiology, Kanazawa Medical University, 1-1 Daigaku, Uchinada-Machi, Ishikawa 920-0293, Japan;
| | - Masayoshi Takeuchi
- Department of Advanced Medicine, Medical Research Institute, Kanazawa Medical University, 1-1 Daigaku, Uchinada-Machi, Ishikawa 920-0293, Japan; (A.S.-S.); (M.T.)
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Moriya S, Kazama H, Hino H, Takano N, Hiramoto M, Aizawa S, Miyazawa K. Clarithromycin overcomes stromal cell-mediated drug resistance against proteasome inhibitors in myeloma cells via autophagy flux blockage leading to high NOXA expression. PLoS One 2023; 18:e0295273. [PMID: 38039297 PMCID: PMC10691716 DOI: 10.1371/journal.pone.0295273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 11/19/2023] [Indexed: 12/03/2023] Open
Abstract
We previously reported that macrolide antibiotics, such as clarithromycin (CAM), blocked autophagy flux, and simultaneous proteasome and autophagy inhibition by bortezomib (BTZ) plus CAM resulted in enhanced apoptosis induction in multiple myeloma (MM) cells via increased endoplasmic reticulum (ER) stress loading. However, in actual therapeutic settings, cell adhesion-mediated drug resistance between bone marrow stromal cells (BMSC) and MM cells has been known to be a barrier to treatment. To investigate whether CAM could enhance BTZ-induced cytotoxicity in MM cells under direct cell adhesion with BMSC, we established a co-culture system of EGFP-labeled MM cells with BMSC. The cytotoxic effect of BTZ on MM cells was diminished by its interaction with BMSC; however, the attenuated cytotoxicity was recovered by the co-administration of CAM, which upregulates ER stress loading and NOXA expression. Knockout of NOXA in MM cells canceled the enhanced cell death by CAM, indicating that NOXA is a key molecule for cell death induction by the co-administration of CAM. Since NOXA is degraded by autophagy as well as proteasomes, blocking autophagy with CAM resulted in the sustained upregulation of NOXA in MM cells co-cultured with BMSC in the presence of BTZ. Our data suggest that BMSC-associated BTZ resistance is mediated by the attenuation of ER stress loading. However, the addition of CAM overcomes BMSC-associated resistance via upregulation of NOXA by concomitantly blocking autophagy-mediated NOXA degradation and transcriptional activation of NOXA by ER stress loading.
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Affiliation(s)
- Shota Moriya
- Department of Biochemistry, Tokyo Medical University, Tokyo, Japan
| | - Hiromi Kazama
- Department of Biochemistry, Tokyo Medical University, Tokyo, Japan
| | - Hirotsugu Hino
- Department of Biochemistry, Tokyo Medical University, Tokyo, Japan
- Division of Anatomical Science, Department of Functional Morphology, Nihon University School of Medicine, Tokyo, Japan
| | - Naoharu Takano
- Department of Biochemistry, Tokyo Medical University, Tokyo, Japan
| | - Masaki Hiramoto
- Department of Biochemistry, Tokyo Medical University, Tokyo, Japan
| | - Shin Aizawa
- Division of Anatomical Science, Department of Functional Morphology, Nihon University School of Medicine, Tokyo, Japan
| | - Keisuke Miyazawa
- Department of Biochemistry, Tokyo Medical University, Tokyo, Japan
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Panada J, Klopava V, Kulahava T, Koran S, Faletrov Y, Frolova N, Fomina E, Shkumatov V. Differential induction of C6 glioma apoptosis and autophagy by 3β-hydroxysteroid-indolamine conjugates. Steroids 2023; 200:109326. [PMID: 37827441 DOI: 10.1016/j.steroids.2023.109326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 09/28/2023] [Accepted: 10/09/2023] [Indexed: 10/14/2023]
Abstract
In a previous work, we reported the synthesis of four novel indole steroids and their effect on rat C6 glioma proliferation in vitro. The steroid derived from dehydroepiandrosterone and tryptamine (IS-1) was the most active (52 % inhibition at 10 µM), followed by one of the epimers derived from pregnenolone and tryptamine (IS-3, 36 % inhibition at 10 µM). By contrast, the steroid derived from estrone and tryptamine (IS-2) showed negligible activity at 10 µM. No necrosis, increase in intracellular calcium or ROS levels was observed. In this work, the effect of compounds on C6 glioma apoptosis and autophagy is examined by fluorimetry and fluorescent microscopy. The IS-3 epimers disrupt the mitochondrial membrane potential and induce apoptosis in vitro moderately whereas IS-1 and IS-2 do not. However, IS-1 produces a large increase in monodansylcadaverine-positive autophagic vesicles over 24 h. The antiproliferative effect of indole steroids is ameliorated by autophagy inhibitor hydroxychloroquine, suggesting an autophagy-dependent mechanism of cell death.
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Affiliation(s)
- Jan Panada
- Research Institute for Physical Chemical Problems of the Belarusian State University, 220006, 14 Lieninhradskaja str., Minsk, Belarus
| | - Valeriya Klopava
- Research Institute for Physical Chemical Problems of the Belarusian State University, 220006, 14 Lieninhradskaja str., Minsk, Belarus
| | - Tatsiana Kulahava
- Institute for Nuclear Problems of the Belarusian State University, 220006, 11 Babrujskaja str., Minsk, Belarus
| | - Siarhei Koran
- Republican Research and Practical Center for Epidemiology and Microbiology, 220114, 23 Filimonava str., Minsk, Belarus
| | - Yaroslav Faletrov
- Research Institute for Physical Chemical Problems of the Belarusian State University, 220006, 14 Lieninhradskaja str., Minsk, Belarus; Department of Chemistry, Belarusian State University, 220050, 4 Independence ave., Minsk, Belarus
| | - Nina Frolova
- Research Institute for Physical Chemical Problems of the Belarusian State University, 220006, 14 Lieninhradskaja str., Minsk, Belarus
| | - Elena Fomina
- Republican Research and Practical Center for Epidemiology and Microbiology, 220114, 23 Filimonava str., Minsk, Belarus
| | - Vladimir Shkumatov
- Research Institute for Physical Chemical Problems of the Belarusian State University, 220006, 14 Lieninhradskaja str., Minsk, Belarus; Department of Chemistry, Belarusian State University, 220050, 4 Independence ave., Minsk, Belarus.
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Ham J, Jang H, Song G, Lim W. Cypermethrin induces endoplasmic reticulum stress and autophagy, leads to testicular dysfunction. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 902:166167. [PMID: 37567297 DOI: 10.1016/j.scitotenv.2023.166167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 08/06/2023] [Accepted: 08/07/2023] [Indexed: 08/13/2023]
Abstract
Cypermethrin is a pyrethroid insecticide that is used to control insects and protect crops. However, pesticide residues and their possible toxicity to non-target animals such as mammals are concerning. Although cypermethrin reduces testosterone levels, the molecular mechanisms involved, particularly those regarding endoplasmic reticulum (ER) stress and autophagy regulation, have not yet been fully elucidated. In this study, we demonstrated testicular toxicity of cypermethrin in mouse Leydig (TM3) and Sertoli (TM4) cells. Cypermethrin suppresses TM3 and TM4 cell proliferation and induces apoptosis. Moreover, it interrupted calcium homeostasis in intracellular organelles and dissipated mitochondrial membrane polarization in mouse testicular cells. Moreover, we verified the accumulation of Sqstm1/p62 protein in the mitochondria of cypermethrin-treated TM3 and TM4 cells. Furthermore, we confirmed that cypermethrin activated autophagy and the ER stress pathway in a time-dependent manner in both cell types. Finally, we determined that cypermethrin downregulated testicular function-related genes, steroidogenesis, and spermatogenesis in mouse testis cells. Therefore, we conclude that cypermethrin regulates autophagy and ER stress, leading to testicular dysfunction.
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Affiliation(s)
- Jiyeon Ham
- Division of Animal and Dairy Science, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Hyewon Jang
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Gwonhwa Song
- Institute of Animal Molecular Biotechnology and Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea.
| | - Whasun Lim
- Department of Biological Sciences, College of Science, Sungkyunkwan University, Suwon 16419, Republic of Korea.
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Xu ST, Zhang YX, Liu SL, Liu F, Ye JT. Exosomes derived from cardiac fibroblasts with angiotensin II stimulation provoke hypertrophy and autophagy inhibition in cardiomyocytes. Biochem Biophys Res Commun 2023; 682:199-206. [PMID: 37826943 DOI: 10.1016/j.bbrc.2023.10.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 10/07/2023] [Indexed: 10/14/2023]
Abstract
Although accumulating evidence has revealed that autophagy inhibition contributes to the development of pathological cardiac hypertrophy, the mechanisms leading to declined autophagy activity in the hypertrophic heart remain to be elucidated. Exosomes are known to be important mediators of intercellular communication, and the involvement of exosomes in cardiovascular abnormities has attracted increasing attentions. Cardiac fibroblasts (CFs) are the most abundant cell type in the heart. Here, we investigated the potential role of CFs-derived exosomes in regulating cardiomyocyte hypertrophy and autophagy. Exosomes from rat CFs treated with angiotensin II (Ang II-CFs-exosomes) were collected and characterized. Our experiments showed that these exosomes could induce hypertrophic responses and impair autophagy activity in primary neonatal rat cardiomyocytes (NRCMs). Ang II-CFs-exosomes blocked the autophagic flux of NRCMs via inhibiting the formation of autolysosomes. Moreover, the pro-hypertrophic effects and autophagy inhibition induced by Ang II-CFs-exosomes was validated in mice receiving injection of the exosomes. These findings highlight a novel role of Ang II-CFs-exosomes in suppressing cardiomyocyte autophagy, which may help to better understand the pathogenesis of cardiac hypertrophy.
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Affiliation(s)
- Si-Ting Xu
- School of Pharmaceutical Sciences, Sun Yat-Sen University, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Guangzhou, 510006, China
| | - Yue-Xin Zhang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Guangzhou, 510006, China
| | - Si-Ling Liu
- School of Pharmaceutical Sciences, Sun Yat-Sen University, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Guangzhou, 510006, China
| | - Fang Liu
- School of Pharmaceutical Sciences, Sun Yat-Sen University, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Guangzhou, 510006, China
| | - Jian-Tao Ye
- School of Pharmaceutical Sciences, Sun Yat-Sen University, National and Local United Engineering Lab of Druggability and New Drugs Evaluation, Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Guangzhou, 510006, China.
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Ma YN, Jiang X, Tang W, Song P. Influence of intermittent fasting on autophagy in the liver. Biosci Trends 2023; 17:335-355. [PMID: 37661370 DOI: 10.5582/bst.2023.01207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
Studies have found that intermittent fasting (IF) can prevent diabetes, cancer, heart disease, and neuropathy, while in humans it has helped to alleviate metabolic syndrome, asthma, rheumatoid arthritis, Alzheimer's disease, and many other disorders. IF involves a series of coordinated metabolic and hormonal changes to maintain the organism's metabolic balance and cellular homeostasis. More importantly, IF can activate hepatic autophagy, which is important for maintaining cellular homeostasis and energy balance, quality control, cell and tissue remodeling, and defense against extracellular damage and pathogens. IF affects hepatic autophagy through multiple interacting pathways and molecular mechanisms, including adenosine monophosphate (AMP)-activated protein kinase (AMPK), mammalian target of rapamycin (mTOR), silent mating-type information regulatory 2 homolog-1 (SIRT1), peroxisomal proliferator-activated receptor alpha (PPARα) and farnesoid X receptor (FXR), as well as signaling pathways and molecular mechanisms such as glucagon and fibroblast growth factor 21 (FGF21). These pathways can stimulate the pro-inflammatory cytokines interleukin 6 (IL-6) and tumor necrosis factor α (TNF-α), play a cytoprotective role, downregulate the expression of aging-related molecules, and prevent the development of steatosis-associated liver tumors. By influencing the metabolism of energy and oxygen radicals as well as cellular stress response systems, IF protects hepatocytes from genetic and environmental factors. By activating hepatic autophagy, IF has a potential role in treating a variety of liver diseases, including non-alcoholic fatty liver disease, drug-induced liver injury, viral hepatitis, hepatic fibrosis, and hepatocellular carcinoma. A better understanding of the effects of IF on liver autophagy may lead to new approaches for the prevention and treatment of liver disease.
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Affiliation(s)
- Ya-Nan Ma
- Department of Gastroenterology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, China
- Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo, Japan
| | - Xuemei Jiang
- Department of Gastroenterology, Hainan General Hospital, Hainan Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Wei Tang
- International Health Care Center, National Center for Global Health and Medicine, Tokyo, Japan
- Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, The University of Tokyo Hospital, Tokyo, Japan
| | - Peipei Song
- Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo, Japan
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Kozhevnikova OS, Fursova AZ, Derbeneva AS, Nikulich IF, Devyatkin VA, Kolosova NG. Pharmacogenetic Association between Allelic Variants of the Autophagy-Related Genes and Anti-Vascular Endothelial Growth Factor Treatment Response in Neovascular Age-Related Macular Degeneration. Biomedicines 2023; 11:3079. [PMID: 38002079 PMCID: PMC10669692 DOI: 10.3390/biomedicines11113079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 11/13/2023] [Accepted: 11/15/2023] [Indexed: 11/26/2023] Open
Abstract
BACKGROUND Age-related macular degeneration (AMD) is the leading cause of late-onset blindness in elderly. The occurrence and development of AMD is a multifactorial complex process where autophagy plays an important role. The first-line drugs for neovascular AMD (nAMD) are inhibitors of VEGF, with up to 30% of patients having an incomplete response to treatment. Genetic factors may influence the response to anti-VEGF therapy and explain treatment outcome variability. We aimed to estimate the role of polymorphic markers of the MTOR (rs1064261, rs1057079, rs11121704, rs2295080), SQSTM1 (rs10277), ULK1 (rs11246867, rs3088051), MAP1LC3A (rs73105013) and ATG5 (rs573775) genes in the development of nAMD and the efficacy of anti-VEGF therapy response. METHODS Genotyping by allele-specific PCR was performed in 317 controls and 315 nAMD patients in the Russian population. Of them, 196 treatment-naive nAMD patients underwent three monthly intravitreal injections (IVIs) of aflibercept. Genotypic frequencies were compared with OCT markers of therapy effectiveness and best-corrected visual acuity (BCVA) measures. The main outcomes were the BCVA gain and decrease in central retinal thickness (CRT). RESULTS MTOR-rs1057079-C, MTOR-rs11121704-C and MTOR-rs2295080-G alleles were associated with an increased risk of nAMD. The BCVA was increased in 117 (59.7%) patients by 10 [5-20] letters, did not changed in 59 (30.1%), and was decreased in 20 (10.2%) patients. ULK1-rs3088051 was associated with BCVA change. Among patients with the TT and CT genotypes for ULK1-rs3088051, an improvement in visual acuity was noted in 67.6% and 53.8% of cases, while in patients with the CC genotype, an increase in BCVA was recorded in 37.5% of cases (p = 0.01). The decrease in CRT was associated with SQSTM1-rs10277 (p = 0.001): it was significantly higher in TT (93 [58-122] mkm) and CT (66 [30-105] mkm) carriers compared to the CC genotype (47 [24-68] mkm). Other SNPs did not show significant associations with the outcome of anti-VEGF treatment. CONCLUSIONS MTOR gene polymorphisms are moderately associated with the risk of nAMD. SQSTM1-rs10277 and ULK1-rs3088051 may influence short-term response to intravitreal anti-VEGF treatment. The results suggest that autophagy could be a target for future drugs to overcome resistance to anti-VEGF therapy.
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Affiliation(s)
- Oyuna S. Kozhevnikova
- Federal Research Center Institute of Cytology and Genetics SB RAS, Pr. Lavrentiev, 10, 630090 Novosibirsk, Russia; (A.Z.F.); (A.S.D.); (I.F.N.); (V.A.D.); (N.G.K.)
| | - Anzhella Zh. Fursova
- Federal Research Center Institute of Cytology and Genetics SB RAS, Pr. Lavrentiev, 10, 630090 Novosibirsk, Russia; (A.Z.F.); (A.S.D.); (I.F.N.); (V.A.D.); (N.G.K.)
- State Novosibirsk Regional Clinical Hospital, St. Nemirovich-Danchenko, 130, 630087 Novosibirsk, Russia
- Department of Ophthalmology, Novosibirsk State Medical University, Pr. Krasny, 52, 630091 Novosibirsk, Russia
| | - Anna S. Derbeneva
- Federal Research Center Institute of Cytology and Genetics SB RAS, Pr. Lavrentiev, 10, 630090 Novosibirsk, Russia; (A.Z.F.); (A.S.D.); (I.F.N.); (V.A.D.); (N.G.K.)
- State Novosibirsk Regional Clinical Hospital, St. Nemirovich-Danchenko, 130, 630087 Novosibirsk, Russia
- Department of Ophthalmology, Novosibirsk State Medical University, Pr. Krasny, 52, 630091 Novosibirsk, Russia
| | - Ida F. Nikulich
- Federal Research Center Institute of Cytology and Genetics SB RAS, Pr. Lavrentiev, 10, 630090 Novosibirsk, Russia; (A.Z.F.); (A.S.D.); (I.F.N.); (V.A.D.); (N.G.K.)
- State Novosibirsk Regional Clinical Hospital, St. Nemirovich-Danchenko, 130, 630087 Novosibirsk, Russia
- Department of Ophthalmology, Novosibirsk State Medical University, Pr. Krasny, 52, 630091 Novosibirsk, Russia
| | - Vasiliy A. Devyatkin
- Federal Research Center Institute of Cytology and Genetics SB RAS, Pr. Lavrentiev, 10, 630090 Novosibirsk, Russia; (A.Z.F.); (A.S.D.); (I.F.N.); (V.A.D.); (N.G.K.)
| | - Nataliya G. Kolosova
- Federal Research Center Institute of Cytology and Genetics SB RAS, Pr. Lavrentiev, 10, 630090 Novosibirsk, Russia; (A.Z.F.); (A.S.D.); (I.F.N.); (V.A.D.); (N.G.K.)
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Jiang Z, Kuo YH, Arkin MR. Autophagy Receptor-Inspired Antibody-Fusion Proteins for Targeted Intracellular Degradation. J Am Chem Soc 2023; 145:23939-23947. [PMID: 37748140 PMCID: PMC10636752 DOI: 10.1021/jacs.3c05199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Indexed: 09/27/2023]
Abstract
Autophagy is responsible for the degradation of large intracellular contents, such as unwanted protein aggregates and organelles. Impaired autophagy can therefore lead to the accumulation of pathological aggregates, correlating with aging and neurodegenerative diseases. However, a broadly applicable methodology is not available for the targeted degradation of protein aggregates or organelles in mammalian cells. Herein, we developed a series of autophagy receptor-inspired targeting chimeras (AceTACs) that can induce the targeted degradation of aggregation-prone proteins and protein aggregates (e.g., huntingtin, TDP-43, and FUS mutants), as well as organelles (e.g., mitochondria, peroxisomes, and endoplasmic reticulum). These antibody-fusion-based AceTAC degraders were designed to mimic the function of autophagy receptors, simultaneously binding with the cellular targets and the LC3 proteins on the autophagosomal membrane, eventually transporting the target to the autophagy-lysosomal process for degradation. The AceTAC degradation system provides design principles for antibody-based degradation through autophagy, largely expanding the scope of intracellular targeted degradation technologies.
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Affiliation(s)
- Ziwen Jiang
- Department
of Pharmaceutical Chemistry, and Small Molecule Discovery Center, University of California, San Francisco, California 94158, United States
| | - Yu-Hsuan Kuo
- Department
of Pharmaceutical Chemistry, and Small Molecule Discovery Center, University of California, San Francisco, California 94158, United States
| | - Michelle R. Arkin
- Department
of Pharmaceutical Chemistry, and Small Molecule Discovery Center, University of California, San Francisco, California 94158, United States
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Guo Y, Huang C, Xu C, Qiu L, Yang F. Dysfunction of ZNF554 promotes ROS-induced apoptosis and autophagy in Fetal Growth Restriction via the p62-Keap1-Nrf2 pathway. Placenta 2023; 143:34-44. [PMID: 37804692 DOI: 10.1016/j.placenta.2023.09.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 09/14/2023] [Accepted: 09/26/2023] [Indexed: 10/09/2023]
Abstract
Fetal growth restriction (FGR) is one of the most common complications of an abnormal pregnancy. Placental dysplasia has been established as a significant contributing factor to FGR. Zinc finger protein 554 (ZNF554) is a member of the Krüppel-associated box domain zinc finger protein subfamily, primarily expressed in the placenta and essential for maintaining normal pregnancy outcomes. However, its precise role in FGR remains uncertain. In this study, we confirmed that ZNF554 was low expressed in the placenta of the FGR pregnancy. To further elucidate the impact of ZNF554 on trophoblasts, we conducted experiments using siRNA and overexpression plasmids on HTR8/SVneo and JEG3 cells. Our findings revealed that silencing ZNF554 increased apoptosis and inhibited migration and invasion, while overexpression reduced apoptosis and promoted migration and invasion. Notably, ZNF554 knockdown decreased cellular antioxidant capacity and elevated the production of reactive oxygen species (ROS). Conversely, ZNF554 activated the nuclear factor E2-related factor 2 (NRF2) signaling pathway, exerting its antioxidant effects. Additionally, ZNF554 knockdown promoted cellular autophagy by suppressing P62 and enhancing LC3-II/LC3-I expression. Importantly, the antioxidant N-acetylcysteine (NAC) partially mitigated the impact of ZNF554 knockdown on mitochondrial ROS in trophoblast cells and subsequent effects on cellular autophagy and apoptosis. In conclusion, our results suggest that ZNF554 plays a pivotal role in modulating trophoblast cell invasion and may serve as a prognostic marker and potential therapeutic target for FGR.
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Affiliation(s)
- Yanyan Guo
- Department of Fetal Medicine and Prenatal Diagnosis, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China; Obstetrics and Gynecology Center, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Chuyi Huang
- Department of Fetal Medicine and Prenatal Diagnosis, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China; Obstetrics and Gynecology Center, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Cailing Xu
- Department of Fetal Medicine and Prenatal Diagnosis, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China; Obstetrics and Gynecology Center, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Liyan Qiu
- Department of Fetal Medicine and Prenatal Diagnosis, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China; Obstetrics and Gynecology Center, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Fang Yang
- Department of Fetal Medicine and Prenatal Diagnosis, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China; Obstetrics and Gynecology Center, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China.
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Echavarria-Consuegra L, Dinesh Kumar N, van der Laan M, Mauthe M, Van de Pol D, Reggiori F, Smit JM. Mitochondrial protein BNIP3 regulates Chikungunya virus replication in the early stages of infection. PLoS Negl Trop Dis 2023; 17:e0010751. [PMID: 38011286 PMCID: PMC10703415 DOI: 10.1371/journal.pntd.0010751] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 12/07/2023] [Accepted: 10/05/2023] [Indexed: 11/29/2023] Open
Abstract
Chikungunya virus (CHIKV) is a human pathogen causing outbreaks of febrile illness for which vaccines and specific treatments remain unavailable. Autophagy-related (ATG) proteins and autophagy receptors are a set of host factors that participate in autophagy, but have also shown to function in other unrelated cellular pathways. Although autophagy is reported to both inhibit and enhance CHIKV replication, the specific role of individual ATG proteins remains largely unknown. Here, a siRNA screen was performed to evaluate the importance of the ATG proteome and autophagy receptors in controlling CHIKV infection. We observed that 7 out of 50 ATG proteins impact the replication of CHIKV. Among those, depletion of the mitochondrial protein and autophagy receptor BCL2 Interacting Protein 3 (BNIP3) increased CHIKV infection. Interestingly, BNIP3 controls CHIKV independently of autophagy and cell death. Detailed analysis of the CHIKV viral cycle revealed that BNIP3 interferes with the early stages of infection. Moreover, the antiviral role of BNIP3 was found conserved across two distinct CHIKV genotypes and the closely related Semliki Forest virus. Altogether, this study describes a novel and previously unknown function of the mitochondrial protein BNIP3 in the control of the early stages of the alphavirus viral cycle.
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Affiliation(s)
- Liliana Echavarria-Consuegra
- Department of Medical Microbiology and Infection Prevention, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Nilima Dinesh Kumar
- Department of Medical Microbiology and Infection Prevention, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
- Department of Biomedical Sciences of Cells & Systems, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Marleen van der Laan
- Department of Medical Microbiology and Infection Prevention, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Mario Mauthe
- Department of Biomedical Sciences of Cells & Systems, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Denise Van de Pol
- Department of Medical Microbiology and Infection Prevention, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Fulvio Reggiori
- Department of Biomedical Sciences of Cells & Systems, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Jolanda M. Smit
- Department of Medical Microbiology and Infection Prevention, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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45
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Miyoshi T, Keller BC, Ashino T, Numazawa S. Noncanonical mechanism of Nrf2 activation by diacylglycerol polyethylene glycol adducts in normal human epidermal keratinocytes. PLoS One 2023; 18:e0291905. [PMID: 37819868 PMCID: PMC10566712 DOI: 10.1371/journal.pone.0291905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 09/07/2023] [Indexed: 10/13/2023] Open
Abstract
Polyethylene glycol-23 glyceryl distearate (GDS-23), a diacylglycerol polyethylene glycol adduct, forms niosomes with a liposome-like structure and functions as an active ingredient in drug delivery systems. In addition, it upregulates antioxidant proteins such as heme oxygenase 1 and NAD(P)H-quinone dehydrogenase 1 in cells. However, the activation of nuclear factor E2-related factor-2 (Nrf2), which plays a role in inducing the expression of antioxidant proteins, and its protective effects induced by GDS-23 treatment against oxidative stress have not been elucidated. This study aimed at verifying the activation of Nrf2 by GDS-23 and clarifying its underlying mechanisms, and investigated whether GDS-23 protects against hydroquinone-induced cytotoxicity. Normal human epidermal keratinocytes were treated with GDS-23. Real-time reverse transcription-polymerase chain reaction, western blotting, and immunostaining were used to investigate the mechanism of Nrf2 activation, and neutral red assay was performed to evaluate cytotoxicity. GDS-23-treated cells showed an increase in antioxidant protein levels and stabilization of Nrf2 in the nucleus. During Nrf2 activation, p62, an autophagy-related adaptor protein, was phosphorylated at Ser349. Inhibition of the interaction between the phosphorylated p62 and Kelch-like ECH-associated protein 1 significantly suppressed the GDS-23-mediated induction of antioxidant protein expression. In addition, hydroquinone-induced cell toxicity was significantly attenuated by GDS-23. GDS-23 induced the intracellular antioxidant system by activating Nrf2 in a p62 phosphorylation-dependent manner without generating oxidative stress in the cells. GDS-23 may be applied as a multifunctional material for drug delivery system that enhances internal antioxidant systems.
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Affiliation(s)
- Tatsuro Miyoshi
- Beverly Glen Laboratories, Inc. Newport Beach, Newport Beach, CA, United States of America
| | - Brian C. Keller
- Beverly Glen Laboratories, Inc. Newport Beach, Newport Beach, CA, United States of America
| | - Takashi Ashino
- Department of Pharmacology, Division of Toxicology, Toxicology and Therapeutics, Showa University School of Pharmacy, Shinagawa, Tokyo, Japan
| | - Satoshi Numazawa
- Department of Pharmacology, Division of Toxicology, Toxicology and Therapeutics, Showa University School of Pharmacy, Shinagawa, Tokyo, Japan
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Wang T, Yan L, Wang L, Sun J, Qu H, Ma Y, Song R, Tong X, Zhu J, Yuan Y, Gu J, Bian J, Liu Z, Zou H. VPS41-mediated incomplete autophagy aggravates cadmium-induced apoptosis in mouse hepatocytes. JOURNAL OF HAZARDOUS MATERIALS 2023; 459:132243. [PMID: 37562348 DOI: 10.1016/j.jhazmat.2023.132243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 08/04/2023] [Accepted: 08/05/2023] [Indexed: 08/12/2023]
Abstract
Exposure to cadmium (Cd), an environmental heavy metal contaminant, is a serious threat to global health that increases the burden of liver diseases. Autophagy and apoptosis are important in Cd-induced liver injury. However, the regulatory mechanisms involved in the progression of Cd-induced liver damage are poorly understood. Herein, we investigated the role of vacuolar protein sorting 41 (VPS41) in Cd-induced autophagy and apoptosis in hepatocytes. We used targeted VPS41 regulation to elucidate the mechanism of Cd-induced hepatotoxicity. Our data showed that Cd triggered incomplete autophagy by downregulating VPS41, aggravating Cd-induced hepatocyte apoptosis. Mechanistically, Cd-induced VPS41 downregulation interfered with the mTORC1-TFEB/TFE3 axis, leading to an imbalance in autophagy initiation and termination and abnormal activation of autophagy. Moreover, Cd-induced downregulation of VPS41 inhibited autophagosome-lysosome fusion, leading to blocked autophagic flux. This triggers incomplete autophagy, which causes excessive P62 accumulation, accelerating Caspase-9 (CASP9) cleavage. Incomplete autophagy blocks clearance of cleaved CASP9 (CL-CASP9) via the autophagic pathway, promoting apoptosis. Notably, VPS41 overexpression alleviated Cd-induced incomplete autophagy and apoptosis, independent of the homotypic fusion and protein sorting complex. This study provides a new mechanistic understanding of the relationship between autophagy and apoptosis, suggesting that VPS41 is a new therapeutic target for Cd-induced liver damage.
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Affiliation(s)
- Tao Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, Jiangsu, China
| | - Lianqi Yan
- Department of Orthopedics, The Second Xiangya Hospital of Central South University, Changsha 410000, Hunan, China; Department of Orthopedics, Clinical Medical College of Yangzhou University, Subei People's Hospital, Yangzhou 225009, Jiangsu, China
| | - Li Wang
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, Jiangsu, China
| | - Jian Sun
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, Jiangsu, China
| | - Huayi Qu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, Jiangsu, China
| | - Yonggang Ma
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, Jiangsu, China
| | - Ruilong Song
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, Jiangsu, China
| | - Xishuai Tong
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, Jiangsu, China; Jiangsu Key Laboratory of Zoonosis, Yangzhou 225009, Jiangsu, China
| | - Jiaqiao Zhu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, Jiangsu, China
| | - Yan Yuan
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, Jiangsu, China
| | - Jianhong Gu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, Jiangsu, China
| | - Jianchun Bian
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, Jiangsu, China
| | - Zongping Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, Jiangsu, China
| | - Hui Zou
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, Jiangsu, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of the Ministry of Education of China, Yangzhou University, Yangzhou 225009, Jiangsu, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou 225009, Jiangsu, China.
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Huang X, Yao J, Liu L, Chen J, Mei L, Huangfu J, Luo D, Wang X, Lin C, Chen X, Yang Y, Ouyang S, Wei F, Wang Z, Zhang S, Xiang T, Neculai D, Sun Q, Kong E, Tate EW, Yang A. S-acylation of p62 promotes p62 droplet recruitment into autophagosomes in mammalian autophagy. Mol Cell 2023; 83:3485-3501.e11. [PMID: 37802024 PMCID: PMC10552648 DOI: 10.1016/j.molcel.2023.09.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 06/22/2023] [Accepted: 09/07/2023] [Indexed: 10/08/2023]
Abstract
p62 is a well-characterized autophagy receptor that recognizes and sequesters specific cargoes into autophagosomes for degradation. p62 promotes the assembly and removal of ubiquitinated proteins by forming p62-liquid droplets. However, it remains unclear how autophagosomes efficiently sequester p62 droplets. Herein, we report that p62 undergoes reversible S-acylation in multiple human-, rat-, and mouse-derived cell lines, catalyzed by zinc-finger Asp-His-His-Cys S-acyltransferase 19 (ZDHHC19) and deacylated by acyl protein thioesterase 1 (APT1). S-acylation of p62 enhances the affinity of p62 for microtubule-associated protein 1 light chain 3 (LC3)-positive membranes and promotes autophagic membrane localization of p62 droplets, thereby leading to the production of small LC3-positive p62 droplets and efficient autophagic degradation of p62-cargo complexes. Specifically, increasing p62 acylation by upregulating ZDHHC19 or by genetic knockout of APT1 accelerates p62 degradation and p62-mediated autophagic clearance of ubiquitinated proteins. Thus, the protein S-acylation-deacylation cycle regulates p62 droplet recruitment to the autophagic membrane and selective autophagic flux, thereby contributing to the control of selective autophagic clearance of ubiquitinated proteins.
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Affiliation(s)
- Xue Huang
- School of Life Sciences, Chongqing University, Chongqing 401331, China
| | - Jia Yao
- School of Life Sciences, Chongqing University, Chongqing 401331, China
| | - Lu Liu
- School of Life Sciences, Chongqing University, Chongqing 401331, China
| | - Jing Chen
- School of Life Sciences, Chongqing University, Chongqing 401331, China
| | - Ligang Mei
- School of Life Sciences, Chongqing University, Chongqing 401331, China
| | - Jingjing Huangfu
- Institute of Psychiatry and Neuroscience, Xinxiang Key Laboratory of Protein Palmitoylation and Major Human Diseases, Xinxiang Medical University, Xinxiang, China
| | - Dong Luo
- School of Pharmacy, Chongqing University, Chongqing 401331, China
| | - Xinyi Wang
- International Institutes of Medicine, The Fourth Affiliated Hospital of Zhejiang University School of Medicine, Yiwu, Zhejiang, China; Department of Biochemistry and Department of Cardiology of Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Changhai Lin
- School of Life Sciences, Chongqing University, Chongqing 401331, China; Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing 400030, China
| | - Xiaorong Chen
- School of Life Sciences, Chongqing University, Chongqing 401331, China
| | - Yi Yang
- School of Life Sciences, Chongqing University, Chongqing 401331, China
| | - Sheng Ouyang
- School of Life Sciences, Chongqing University, Chongqing 401331, China
| | - Fujing Wei
- School of Life Sciences, Chongqing University, Chongqing 401331, China
| | - Zhuolin Wang
- School of Life Sciences, Chongqing University, Chongqing 401331, China
| | - Shaolin Zhang
- School of Pharmacy, Chongqing University, Chongqing 401331, China
| | - Tingxiu Xiang
- Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing 400030, China
| | - Dante Neculai
- International Institutes of Medicine, The Fourth Affiliated Hospital of Zhejiang University School of Medicine, Yiwu, Zhejiang, China
| | - Qiming Sun
- International Institutes of Medicine, The Fourth Affiliated Hospital of Zhejiang University School of Medicine, Yiwu, Zhejiang, China; Department of Biochemistry and Department of Cardiology of Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Eryan Kong
- Institute of Psychiatry and Neuroscience, Xinxiang Key Laboratory of Protein Palmitoylation and Major Human Diseases, Xinxiang Medical University, Xinxiang, China
| | - Edward W Tate
- Department of Chemistry, Imperial College London, 82 Wood Lane, London W12 0BZ, UK
| | - Aimin Yang
- School of Life Sciences, Chongqing University, Chongqing 401331, China.
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Gu F, Huang X, Huang W, Zhao M, Zheng H, Wang Y, Chen R. The role of miRNAs in Behçet's disease. Front Immunol 2023; 14:1249826. [PMID: 37860009 PMCID: PMC10584330 DOI: 10.3389/fimmu.2023.1249826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 09/12/2023] [Indexed: 10/21/2023] Open
Abstract
The symptoms of Behçet's disease (BD), a multisystemic condition with autoimmune and inflammation as hallmarks, include arthritis, recurring oral and vaginal ulcers, skin rashes and lesions, and involvement of the nervous, gastrointestinal, and vascular systems. Non-coding RNAs (ncRNAs), including microRNAs (miRNAs), long non-coding RNAs (lncRNAs), and circular RNAs (circRNAs), may be important regulators of inflammation and autoimmune disease. These ncRNAs are essential to the physiological and pathophysiological disease course, and miRNA in particular has received significant attention for its role and function in BD and its potential use as a diagnostic biomarker in recent years. Although promising as therapeutic targets, miRNAs must be studied further to fully comprehend how miRNAs in BD act biologically.
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Affiliation(s)
| | | | | | | | | | - Yuanyin Wang
- College and Hospital of Stomatology, Anhui Medical University, Key Laboratory of Oral Diseases Research of Anhui Province, Hefei, China
| | - Ran Chen
- College and Hospital of Stomatology, Anhui Medical University, Key Laboratory of Oral Diseases Research of Anhui Province, Hefei, China
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Feng R, Liu J, Yang Z, Yao T, Ye P, Li X, Zhang J, Jiang H. Realgar-Induced Neurotoxicity: Crosstalk Between the Autophagic Flux and the p62-NRF2 Feedback Loop Mediates p62 Accumulation to Promote Apoptosis. Mol Neurobiol 2023; 60:6001-6017. [PMID: 37400749 DOI: 10.1007/s12035-023-03452-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 06/20/2023] [Indexed: 07/05/2023]
Abstract
Realgar is a traditional Chinese medicine that contains arsenic. It has been reported that the abuse of medicine-containing realgar has potential central nervous system (CNS) toxicity, but the toxicity mechanism has not been elucidated. In this study, we established an in vivo realgar exposure model and selected the end product of realgar metabolism, DMA, to treat SH-SY5Y cells in vitro. Many assays, including behavioral, analytical chemistry, and molecular biology, were used to elucidate the roles of the autophagic flux and the p62-NRF2 feedback loop in realgar-induced neurotoxicity. The results showed that arsenic could accumulate in the brain, causing cognitive impairment and anxiety-like behavior. Realgar impairs the ultrastructure of neurons, promotes apoptosis, perturbs autophagic flux homeostasis, amplifies the p62-NRF2 feedback loop, and leads to p62 accumulation. Further analysis showed that realgar promotes the formation of the Beclin1-Vps34 complex by activating JNK/c-Jun to induce autophagy and recruit p62. Meanwhile, realgar inhibits the activities of CTSB and CTSD and changes the acidity of lysosomes, leading to the inhibition of p62 degradation and p62 accumulation. Moreover, the amplified p62-NRF2 feedback loop is involved in the accumulation of p62. Its accumulation promotes neuronal apoptosis by upregulating the expression levels of Bax and cleaved caspase-9, resulting in neurotoxicity. Taken together, these data suggest that realgar can perturb the crosstalk between the autophagic flux and the p62-NRF2 feedback loop to mediate p62 accumulation, promote apoptosis, and induce neurotoxicity. Realgar promotes p62 accumulation to produce neurotoxicity by perturbing the autophagic flux and p62-NRF2 feedback loop crosstalk.
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Affiliation(s)
- Rui Feng
- Department of Health Laboratory Technology, School of Public Health, China Medical University, Shengyang, 110122, China
| | - Jieyu Liu
- Department of Health Laboratory Technology, School of Public Health, China Medical University, Shengyang, 110122, China
| | - Zhao Yang
- Department of Health Laboratory Technology, School of Public Health, China Medical University, Shengyang, 110122, China
| | - Tiantian Yao
- Department of Health Laboratory Technology, School of Public Health, China Medical University, Shengyang, 110122, China
| | - Ping Ye
- Department of Health Laboratory Technology, School of Public Health, China Medical University, Shengyang, 110122, China
| | - Xiuhan Li
- Department of Health Laboratory Technology, School of Public Health, China Medical University, Shengyang, 110122, China
| | - Jiaxin Zhang
- Department of Health Laboratory Technology, School of Public Health, China Medical University, Shengyang, 110122, China
| | - Hong Jiang
- Department of Health Laboratory Technology, School of Public Health, China Medical University, Shengyang, 110122, China.
- Key Laboratory of Liaoning Province On Toxic and Biological Effects of Arsenic, Shengyang, 110122, China.
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50
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Asami E, Kitami M, Ida T, Kobayashi T, Saeki M. Anti-inflammatory activity of 2-methoxy-4-vinylphenol involves inhibition of lipopolysaccharide-induced inducible nitric oxidase synthase by heme oxygenase-1. Immunopharmacol Immunotoxicol 2023; 45:589-596. [PMID: 36995736 DOI: 10.1080/08923973.2023.2197141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Accepted: 03/25/2023] [Indexed: 03/31/2023]
Abstract
BACKGROUND 2-Methoxy-4-vinylphenol (2M4VP) is a natural anti-inflammatory compound derived from red wine, but its underlying mechanism remains unclear. Heme oxygenase-1 (HO-1), an anti-inflammatory enzyme, inhibits NO gene expression, while nuclear factor erythroid 2-related factor 2 (Nrf2), a transcription factor involved in HO-1 production, binds to the antioxidant response element (ARE) in the nucleus and promotes HO-1 transcription. Based on the hypothesis that the inhibitory effect of 2M4VP on NO production is mediated by HO-1, we examined the possible mechanism of the anti-inflammatory activity of 2M4VP in this study. MATERIALS AND METHODS The anti-inflammatory activity of 2M4VP was analyzed by Griess method, ELISA, qPCR, and Western blotting using LPS-treated macrophage lineage RAW264.7 cells. The impact of 2M4VP on the Nrf2/ARE pathway was also analyzed using immunocytochemistry and an ARE luciferase reporter using HEK293 cells. RESULTS The results showed that 2M4VP reduced the production of LPS-induced NO and inducible nitric oxidase synthase (iNOS). In addition, 2M4VP increased the expression of HO-1, while pretreatment with the Nrf2 inhibitor ML385 downregulated HO-1 expression. 2M4VP induced Kelch-like ECH-associated protein 1 (Keap1) degradation. Furthermore, it promoted Nrf2 nuclear translocation and increased luciferase activity by binding to the ARE. CONCLUSIONS 2M4VP induces Keap1 degradation and promotes Nrf2 nuclear translocation. Activation of Nrf2/ARE pathway enhances HO-1 expression and leads to iNOS inhibition for anti-inflammatory function.
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Affiliation(s)
- Eri Asami
- Division of Dental Pharmacology, Faculty of Dentistry and Graduate School of Medical and Dental Science, Niigata University, Niigata, Japan
- Division of Reconstructive Surgery for Oral and Maxillofacial Region, Faculty of Dentistry and Graduate School of Medical and Dental Science, Niigata University, Niigata, Japan
| | - Megumi Kitami
- Division of Dental Pharmacology, Faculty of Dentistry and Graduate School of Medical and Dental Science, Niigata University, Niigata, Japan
| | - Takako Ida
- Division of Cariology, Operative Dentistry and Endodontics, Faculty of Dentistry and Graduate School of Medical and Dental Science, Niigata University, Niigata, Japan
| | - Tadaharu Kobayashi
- Division of Reconstructive Surgery for Oral and Maxillofacial Region, Faculty of Dentistry and Graduate School of Medical and Dental Science, Niigata University, Niigata, Japan
| | - Makio Saeki
- Division of Dental Pharmacology, Faculty of Dentistry and Graduate School of Medical and Dental Science, Niigata University, Niigata, Japan
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