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Zhou M, Zhang S, Bai X, Cai Y, Zhang Z, Zhang P, Xue C, Zheng H, Sun Q, Han D, Lou L, Wang Y, Liu W. Acteoside delays the fibrosis process of diabetic nephropathy by anti-oxidation and regulating the autophagy-lysosome pathway. Eur J Pharmacol 2024:176715. [PMID: 38852699 DOI: 10.1016/j.ejphar.2024.176715] [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: 02/11/2024] [Revised: 06/04/2024] [Accepted: 06/05/2024] [Indexed: 06/11/2024]
Abstract
Renal fibrosis is the final pathological change of kidney disease, it has also been recognized to be critical for the final progression of diabetic nephropathy (DN) to kidney failure. Acteoside (ACT) is a phenylethanoid glycoside widely distributed in dicotyledonous plants. It has many pharmacological activities, such as anti-oxidation, anti-inflammation, anti-cancer, neuroprotection, cardiovascular protection, anti-diabetes, bone and cartilage protection, liver and kidney protection, and antibacterial activity. This study aims to investigate the protective effects of ACT on renal interstitial fibrosis in rats with DN induced by intraperitoneal injection of streptozocin (STZ) combined with unilateral nephrectomy and its mechanism. In vivo and in vitro, the effects of ACT on reactive oxygen species (ROS) level, oxidative tubular injury, as well as damage of autophagic flux and lysosome in the DN model were detected. Results indicate that administration of ACT delayed the progression of renal interstitial fibrosis in DN by anti-oxidation and regulating the autophagy-lysosome pathway, which may potentially be attributed to the regulatory influence of ACT on transcription factor EB (TFEB).
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Affiliation(s)
- Mengqi Zhou
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100007, China; Key Laboratory of Chinese Internal Medicine of Ministry of Education, Beijing Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Shujiao Zhang
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100007, China; Key Laboratory of Chinese Internal Medicine of Ministry of Education, Beijing Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Xuehui Bai
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100007, China; Key Laboratory of Chinese Internal Medicine of Ministry of Education, Beijing Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Yuzi Cai
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100007, China; Key Laboratory of Chinese Internal Medicine of Ministry of Education, Beijing Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Zeyu Zhang
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100007, China; Key Laboratory of Chinese Internal Medicine of Ministry of Education, Beijing Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Pingna Zhang
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100007, China; Key Laboratory of Chinese Internal Medicine of Ministry of Education, Beijing Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Chengyuan Xue
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100007, China; Key Laboratory of Chinese Internal Medicine of Ministry of Education, Beijing Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Huijuan Zheng
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100007, China; Key Laboratory of Chinese Internal Medicine of Ministry of Education, Beijing Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Quanmei Sun
- National Centre for Nanoscience and Technology, Beijing, China
| | - Dong Han
- National Centre for Nanoscience and Technology, Beijing, China
| | - Lixia Lou
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100007, China; Key Laboratory of Chinese Internal Medicine of Ministry of Education, Beijing Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China.
| | - Yaoxian Wang
- Henan University of Chinese Medicine, Zhengzhou, China; Renal Research Institution of Beijing University of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| | - Weijing Liu
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100007, China; Key Laboratory of Chinese Internal Medicine of Ministry of Education, Beijing Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China; Renal Research Institution of Beijing University of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
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2
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Satou M, Wang J, Nakano-Tateno T, Teramachi M, Aoki S, Sugimoto H, Chik C, Tateno T. Autophagy inhibition suppresses hormone production and cell growth in pituitary tumor cells: A potential approach to pituitary tumors. Mol Cell Endocrinol 2024; 586:112196. [PMID: 38462123 DOI: 10.1016/j.mce.2024.112196] [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: 12/04/2023] [Revised: 02/26/2024] [Accepted: 02/27/2024] [Indexed: 03/12/2024]
Abstract
Pituitary tumors (PTs) represent about 10% of all intracranial tumors, and most are benign. However, some PTs exhibit continued growth despite multimodal therapies. Although temozolomide (TMZ), an alkylating chemotherapeutic agent, is a first-line medical treatment for aggressive PTs, some PTs are resistant to TMZ. Existing literature indicated the involvement of autophagy in cell growth in several types of tumors, including PTs, and autophagy inhibitors have anti-tumor effects. In this study, the expression of several autophagy-inducible genes, including Atg3, Beclin1, Map1lc3A, Map1lc3b, Ulk1, Wipi2, and Tfe3 in two PT cell lines, the mouse corticotroph AtT-20 cells and the rat mammosomatotroph GH4 cells were identified. Down regulation of Tfe3, a master switch of basal autophagy, using RNA interference, suppressed cell proliferation in AtT-20 cells, suggesting basal autophagy contributes to the maintenance of cellular functions in PT cells. Expectedly, treatment with bafilomycin A1, an autophagy inhibitor, suppressed cell proliferation, increased the cleavage of PARP1, and reduced ACTH production in AtT-20 cells. Treatment with two additional autophagy inhibitors, chloroquine (CQ) and monensin, demonstrated similar effects on cell proliferation, apoptosis, and ACTH production in AtT-20 cells. Also, treatment with CQ suppressed cell proliferation and growth hormone production in GH4 cells. Moreover, the combination of CQ and TMZ had an additive effect on the inhibition of cell proliferation in AtT-20 and GH4 cells. The additive effect of anti-cancer drugs such as CQ alone or in combination with TMZ may represent a novel therapeutic approach for PTs, in particular tumors with resistance to TMZ.
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Affiliation(s)
- Motoyasu Satou
- Division of Endocrinology and Metabolism, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada; Department of Biochemistry, Dokkyo Medical University School of Medicine, Mibu, Tochigi, Japan
| | - Jason Wang
- Division of Endocrinology and Metabolism, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Tae Nakano-Tateno
- Division of Endocrinology and Metabolism, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Mariko Teramachi
- Division of Endocrinology and Metabolism, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Shigeki Aoki
- Laboratory of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Chiba University, Chiba, Japan
| | - Hiroyuki Sugimoto
- Department of Biochemistry, Dokkyo Medical University School of Medicine, Mibu, Tochigi, Japan
| | - Constance Chik
- Division of Endocrinology and Metabolism, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Toru Tateno
- Division of Endocrinology and Metabolism, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada.
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3
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Do H, Meena NK, Raben N. Failure of Autophagy in Pompe Disease. Biomolecules 2024; 14:573. [PMID: 38785980 PMCID: PMC11118179 DOI: 10.3390/biom14050573] [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: 04/08/2024] [Revised: 05/10/2024] [Accepted: 05/11/2024] [Indexed: 05/25/2024] Open
Abstract
Autophagy is an evolutionarily conserved lysosome-dependent degradation of cytoplasmic constituents. The system operates as a critical cellular pro-survival mechanism in response to nutrient deprivation and a variety of stress conditions. On top of that, autophagy is involved in maintaining cellular homeostasis through selective elimination of worn-out or damaged proteins and organelles. The autophagic pathway is largely responsible for the delivery of cytosolic glycogen to the lysosome where it is degraded to glucose via acid α-glucosidase. Although the physiological role of lysosomal glycogenolysis is not fully understood, its significance is highlighted by the manifestations of Pompe disease, which is caused by a deficiency of this lysosomal enzyme. Pompe disease is a severe lysosomal glycogen storage disorder that affects skeletal and cardiac muscles most. In this review, we discuss the basics of autophagy and describe its involvement in the pathogenesis of muscle damage in Pompe disease. Finally, we outline how autophagic pathology in the diseased muscles can be used as a tool to fast track the efficacy of therapeutic interventions.
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Affiliation(s)
| | | | - Nina Raben
- M6P Therapeutics, 20 S. Sarah Street, St. Louis, MO 63108, USA; (H.D.); (N.K.M.)
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4
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Guan XJ, Deng ZQ, Liu J, Su CF, Tong BCK, Zhu Z, Sreenivasmurthy SG, Kan YX, Lu KJ, Chu CPK, Pi RB, Cheung KH, Iyaswamy A, Song JX, Li M. Corynoxine promotes TFEB/TFE3-mediated autophagy and alleviates Aβ pathology in Alzheimer's disease models. Acta Pharmacol Sin 2024; 45:900-913. [PMID: 38225393 PMCID: PMC11053156 DOI: 10.1038/s41401-023-01197-1] [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: 05/01/2023] [Accepted: 11/09/2023] [Indexed: 01/17/2024] Open
Abstract
Autophagy impairment is a key factor in Alzheimer's disease (AD) pathogenesis. TFEB (transcription factor EB) and TFE3 (transcription factor binding to IGHM enhancer 3) are nuclear transcription factors that regulate autophagy and lysosomal biogenesis. We previously showed that corynoxine (Cory), a Chinese medicine compound, protects neurons from Parkinson's disease (PD) by activating autophagy. In this study, we investigated the effect of Cory on AD models in vivo and in vitro. We found that Cory improved learning and memory function, increased neuronal autophagy and lysosomal biogenesis, and reduced pathogenic APP-CTFs levels in 5xFAD mice model. Cory activated TFEB/TFE3 by inhibiting AKT/mTOR signaling and stimulating lysosomal calcium release via transient receptor potential mucolipin 1 (TRPML1). Moreover, we demonstrated that TFEB/TFE3 knockdown abolished Cory-induced APP-CTFs degradation in N2aSwedAPP cells. Our findings suggest that Cory promotes TFEB/TFE3-mediated autophagy and alleviates Aβ pathology in AD models.
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Affiliation(s)
- Xin-Jie Guan
- Mr. & Mrs. Ko Chi Ming Centre for Parkinson's Disease Research (CPDR), School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
- Institute for Research and Continuing Education, Hong Kong Baptist University, Shenzhen, 518057, China
| | - Zhi-Qiang Deng
- Mr. & Mrs. Ko Chi Ming Centre for Parkinson's Disease Research (CPDR), School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
- Institute for Research and Continuing Education, Hong Kong Baptist University, Shenzhen, 518057, China
| | - Jia Liu
- Mr. & Mrs. Ko Chi Ming Centre for Parkinson's Disease Research (CPDR), School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
- Institute for Research and Continuing Education, Hong Kong Baptist University, Shenzhen, 518057, China
| | - Cheng-Fu Su
- Mr. & Mrs. Ko Chi Ming Centre for Parkinson's Disease Research (CPDR), School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
- Institute for Research and Continuing Education, Hong Kong Baptist University, Shenzhen, 518057, China
| | - Benjamin Chun-Kit Tong
- Mr. & Mrs. Ko Chi Ming Centre for Parkinson's Disease Research (CPDR), School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
| | - Zhou Zhu
- Mr. & Mrs. Ko Chi Ming Centre for Parkinson's Disease Research (CPDR), School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
- Institute for Research and Continuing Education, Hong Kong Baptist University, Shenzhen, 518057, China
| | - Sravan Gopalkrishnashetty Sreenivasmurthy
- Mr. & Mrs. Ko Chi Ming Centre for Parkinson's Disease Research (CPDR), School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
- Department of Neurology, University of Texas Medical Branch, Galveston, TX, USA
| | - Yu-Xuan Kan
- Mr. & Mrs. Ko Chi Ming Centre for Parkinson's Disease Research (CPDR), School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
- Institute for Research and Continuing Education, Hong Kong Baptist University, Shenzhen, 518057, China
| | - Ke-Jia Lu
- Mr. & Mrs. Ko Chi Ming Centre for Parkinson's Disease Research (CPDR), School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
| | - Carol Pui-Kei Chu
- Mr. & Mrs. Ko Chi Ming Centre for Parkinson's Disease Research (CPDR), School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
| | - Rong-Biao Pi
- School of Medicine, Sun Yat-sen University (Shenzhen), Shenzhen, 518107, China
| | - King-Ho Cheung
- Mr. & Mrs. Ko Chi Ming Centre for Parkinson's Disease Research (CPDR), School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China
- Institute for Research and Continuing Education, Hong Kong Baptist University, Shenzhen, 518057, China
| | - Ashok Iyaswamy
- Mr. & Mrs. Ko Chi Ming Centre for Parkinson's Disease Research (CPDR), School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China.
- Institute for Research and Continuing Education, Hong Kong Baptist University, Shenzhen, 518057, China.
| | - Ju-Xian Song
- Medical College of Acupuncture-Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China.
| | - Min Li
- Mr. & Mrs. Ko Chi Ming Centre for Parkinson's Disease Research (CPDR), School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR, China.
- Institute for Research and Continuing Education, Hong Kong Baptist University, Shenzhen, 518057, China.
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5
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Yin Q, Yang C. Exploring lysosomal biology: current approaches and methods. BIOPHYSICS REPORTS 2024; 10:111-120. [PMID: 38774350 PMCID: PMC11103719 DOI: 10.52601/bpr.2023.230028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Accepted: 01/04/2024] [Indexed: 05/24/2024] Open
Abstract
Lysosomes are the degradation centers and signaling hubs in the cell. Lysosomes undergo adaptation to maintain cell homeostasis in response to a wide variety of cues. Dysfunction of lysosomes leads to aging and severe diseases including lysosomal storage diseases (LSDs), neurodegenerative disorders, and cancer. To understand the complexity of lysosome biology, many research approaches and tools have been developed to investigate lysosomal functions and regulatory mechanisms in diverse experimental systems. This review summarizes the current approaches and tools adopted for studying lysosomes, and aims to provide a methodological overview of lysosomal research and related fields.
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Affiliation(s)
- Qiuyuan Yin
- State Key Laboratory of Conservation and Utilization of Bio-resources in Yunnan and Center for Life Sciences, School of Life Sciences, Yunnan University, Kunming 650091, China
| | - Chonglin Yang
- State Key Laboratory of Conservation and Utilization of Bio-resources in Yunnan and Center for Life Sciences, School of Life Sciences, Yunnan University, Kunming 650091, China
- Southwest United Graduate School, Kunming 650092, China
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6
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Li Y, Pan J, Yu JJJ, Wu X, Yang G, Pan X, Sui G, Wang M, Cheng M, Zhu S, Tai H, Xiao H, Xu L, Wu J, Yang Y, Tang J, Gong L, Jia L, Min D. Huayu Qutan Recipe promotes lipophagy and cholesterol efflux through the mTORC1/TFEB/ABCA1-SCARB1 signal axis. J Cell Mol Med 2024; 28:e18257. [PMID: 38526033 PMCID: PMC10962127 DOI: 10.1111/jcmm.18257] [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: 08/17/2023] [Revised: 02/01/2024] [Accepted: 02/14/2024] [Indexed: 03/26/2024] Open
Abstract
This study aims to investigate the mechanism of the anti-atherosclerosis effect of Huayu Qutan Recipe (HYQT) on the inhibition of foam cell formation. In vivo, the mice were randomly divided into three groups: CTRL group, MOD group and HYQT group. The HYQT group received HYQT oral administration twice a day (20.54 g/kg/d), and the plaque formation in ApoE-/- mice was observed using haematoxylin-eosin (HE) staining and oil red O (ORO) staining. The co-localization of aortic macrophages and lipid droplets (LDs) was examined using fluorescent labelling of CD11b and BODIPY fluorescence probe. In vitro, RAW 264.7 cells were exposed to 50 μg/mL ox-LDL for 48 h and then treated with HYQT for 24 h. The accumulation of LDs was evaluated using ORO and BODIPY. Cell viability was assessed using the CCK-8 assay. The co-localization of LC3b and BODIPY was detected via immunofluorescence and fluorescence probe. LysoTracker Red and BODIPY 493/503 were used as markers for lysosomes and LDs, respectively. Autophagosome formation were observed via transmission electron microscopy. The levels of LC3A/B II/LC3A/B I, p-mTOR/mTOR, p-4EBP1/4EBP1, p-P70S6K/P70S6K and TFEB protein level were examined via western blotting, while SQSTM1/p62, Beclin1, ABCA1, ABCG1 and SCARB1 were examined via qRT-PCR and western blotting. The nuclear translocation of TFEB was detected using immunofluorescence. The components of HYQT medicated serum were determined using Q-Orbitrap high-resolution MS analysis. Molecular docking was employed to identify the components of HYQT medicated serum responsible for the mTOR signalling pathway. The mechanism of taurine was illustrated. HYQT has a remarkable effect on atherosclerotic plaque formation and blood lipid level in ApoE-/- mice. HYQT decreased the co-localization of CD11b and BODIPY. HYQT (10% medicated serum) reduced the LDs accumulation in RAW 264.7 cells. HYQT and RAPA (rapamycin, a mTOR inhibitor) could promote cholesterol efflux, while chloroquine (CQ, an autophagy inhibitor) weakened the effect of HYQT. Moreover, MHY1485 (a mTOR agonist) also mitigated the effects of HYQT by reduced cholesterol efflux. qRT-PCR and WB results suggested that HYQT improved the expression of the proteins ABCA1, ABCG1 and SCARB1.HYQT regulates ABCA1 and SCARB1 protein depending on the mTORC1/TFEB signalling pathway. However, the activation of ABCG1 does not depend on this pathway. Q-Orbitrap high-resolution MS analysis results demonstrated that seven core compounds have good binding ability to the mTOR protein. Taurine may play an important role in the mechanism regulation. HYQT may reduce cardiovascular risk by promoting cholesterol efflux and degrading macrophage-derived foam cell formation. It has been observed that HYQT and ox-LDL regulate lipophagy through the mTOR/TFEB signalling pathway, rather than the mTOR/4EBP1/P70S6K pathway. Additionally, HYQT is found to regulate cholesterol efflux through the mTORC1/TFEB/ABCA1-SCARB1 signal axis, while taurine plays a significant role in lipophagy.
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Affiliation(s)
- Yue Li
- Department of Cardiologythe Affiliated Hospital of Liaoning University of Traditional Chinese MedicineShenyangChina
- Liaoning Provincial Key Laboratory of TCM Geriatric Cardio‐Cerebrovascular DiseasesShenyangChina
| | - Jiaxiang Pan
- Department of Cardiologythe Affiliated Hospital of Liaoning University of Traditional Chinese MedicineShenyangChina
- Graduate School of Liaoning University of Traditional Chinese MedicineShenyangChina
| | - J. J. Jiajia Yu
- Postdoctoral Program of Liaoning University of Traditional Chinese MedicineShenyangChina
| | - Xize Wu
- Graduate School of Liaoning University of Traditional Chinese MedicineShenyangChina
- Nantong Hospital of Traditional Chinese MedicineNantong Hospital Affiliated to Nanjing University of Chinese MedicineNantongChina
| | - Guanlin Yang
- Innovation Engineering Technology Center of Traditional Chinese MedicineLiaoning University of Traditional Chinese MedicineShenyangChina
| | - Xue Pan
- Graduate School of Liaoning University of Traditional Chinese MedicineShenyangChina
- Dazhou Vocational College of Chinese MedicineDazhouChina
| | - Guoyuan Sui
- Innovation Engineering Technology Center of Traditional Chinese MedicineLiaoning University of Traditional Chinese MedicineShenyangChina
| | - Mingyang Wang
- College of Animal Science and Veterinary Medicine of Shenyang Agricultural UniversityShenyangChina
| | - Meijia Cheng
- Experimental Center of Traditional Chinese Medicinethe Affiliated Hospital of Liaoning University of Traditional Chinese MedicineShenyangChina
| | - Shu Zhu
- Department of Paediatric Dentistry, School of StomatologyChina Medical UniversityShenyangChina
| | - He Tai
- School of PharmacyLiaoning University of Traditional Chinese MedicineDalianChina
| | - Honghe Xiao
- School of PharmacyLiaoning University of Traditional Chinese MedicineDalianChina
| | - Lili Xu
- Department of Cardiology, 924 Hospital of Joint Logistic Support Force of PLAGuilinChina
| | - Jin Wu
- Innovation Engineering Technology Center of Traditional Chinese MedicineLiaoning University of Traditional Chinese MedicineShenyangChina
| | - Yongju Yang
- Experimental Center of Traditional Chinese Medicinethe Affiliated Hospital of Liaoning University of Traditional Chinese MedicineShenyangChina
| | - Jing Tang
- Department of Cardiologythe Affiliated Hospital of Liaoning University of Traditional Chinese MedicineShenyangChina
| | - Lihong Gong
- Department of Cardiologythe Affiliated Hospital of Liaoning University of Traditional Chinese MedicineShenyangChina
- Liaoning Provincial Key Laboratory of TCM Geriatric Cardio‐Cerebrovascular DiseasesShenyangChina
| | - Lianqun Jia
- Innovation Engineering Technology Center of Traditional Chinese MedicineLiaoning University of Traditional Chinese MedicineShenyangChina
| | - Dongyu Min
- Experimental Center of Traditional Chinese Medicinethe Affiliated Hospital of Liaoning University of Traditional Chinese MedicineShenyangChina
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7
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Wei T, Liu N, Yao Y, Huang X, Wang Z, Wu T, Zhang T, Xue Y, Tang M. Low-dose cadmium telluride quantum dots trigger M1 polarization in macrophages through mTOR-mediated transcription factor EB activation. NANOIMPACT 2024; 34:100505. [PMID: 38579989 DOI: 10.1016/j.impact.2024.100505] [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: 11/02/2023] [Revised: 03/18/2024] [Accepted: 03/29/2024] [Indexed: 04/07/2024]
Abstract
The increasing application of quantum dots (QDs) increases interactions with organisms. The inflammatory imbalance is a significant manifestation of immunotoxicity. Macrophages maintain inflammatory homeostasis. Using macrophages differentiated by phorbol 12-myristate 13-acetate-induced THP-1 cells as models, the study found that low-dose (5 μM) cadmium telluride QDs (CdTe-QDs) hindered monocyte-macrophage differentiation. CD11b is a surface marker of macrophage, and the addition of CdTe-QDs during induction resulted in a decrease in CD11b expression. Moreover, exposure of differentiated THP-1 macrophage (dTHP-1) to 5 μM CdTe-QDs led to the initiation of M1 polarization. This was indicated by the increased surface marker CD86 expression, along with elevated level of NF-κB and IL-1β proteins. The potential mechanisms are being explored. The transcription factor EB (TFEB) plays a significant role in immune regulation and serves as a crucial regulator of the autophagic lysosomal pathway. After exposed to CdTe-QDs, TFEB activation-mediated autophagy and M1 polarization were observed to occur simultaneously in dTHP-1. The mTOR signaling pathway contributed to TFEB activation induced by CdTe-QDs. However, mTOR-independent activation of TFEB failed to promote M1 polarization. These results suggest that mTOR-TFEB is an advantageous target to enhance the biocompatibility of CdTe-QDs.
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Affiliation(s)
- Tingting Wei
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education; School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Na Liu
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education; School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Yongshuai Yao
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education; School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Xiaoquan Huang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education; School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Zhihui Wang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education; School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Tianshu Wu
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education; School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Ting Zhang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education; School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Yuying Xue
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education; School of Public Health, Southeast University, Nanjing 210009, PR China
| | - Meng Tang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education; School of Public Health, Southeast University, Nanjing 210009, PR China.
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8
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Xia Q, Zheng H, Li Y, Xu W, Wu C, Xu J, Li S, Zhang L, Dong L. SMURF1 controls the PPP3/calcineurin complex and TFEB at a regulatory node for lysosomal biogenesis. Autophagy 2024; 20:735-751. [PMID: 37909662 PMCID: PMC11062382 DOI: 10.1080/15548627.2023.2267413] [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: 11/07/2022] [Accepted: 10/01/2023] [Indexed: 11/03/2023] Open
Abstract
Macroautophagy/autophagy is a homeostatic process in response to multiple signaling, such as the lysosome-dependent recycling process of cellular components. Starvation-induced MTOR inactivation and PPP3/calcineurin activation were shown to promote the nuclear translocation of TFEB. However, the mechanisms via which signals from endomembrane damage are transmitted to activate PPP3/calcineurin and orchestrate autophagic responses remain unknown. This study aimed to show that autophagy regulator SMURF1 controlled TFEB nuclear import for transcriptional activation of the lysosomal biogenesis. We showed that blocking SMURF1 affected lysosomal biogenesis in response to lysosomal damage by preventing TFEB nuclear translocation. It revealed galectins recognized endolysosomal damage, and led to recruitment of SMURF1 and the PPP3/calcineurin apparatus on lysosomes. SMURF1 interacts with both LGALS3 and PPP3CB to form the LGALS3-SMURF1-PPP3/calcineurin complex. Importantly, this complex further stabilizes TFEB, thereby activating TFEB for lysosomal biogenesis. We determined that LLOMe-mediated TFEB nuclear import is dependent on SMURF1 under the condition of MTORC1 inhibition. In addition, SMURF1 is required for PPP3/calcineurin activity as a positive regulator of TFEB. SMURF1 controlled the phosphatase activity of the PPP3CB by promoting the dissociation of its autoinhibitory domain (AID) from its catalytic domain (CD). Overexpression of SMURF1 showed similar effects as the constitutive activation of PPP3CB. Thus, SMURF1, which bridges environmental stress with the core autophagosomal and autolysosomal machinery, interacted with endomembrane sensor LGALS3 and phosphatase PPP3CB to control TFEB activation.Abbreviations: ATG: autophagy-related; LLOMe: L-Leucyl-L-Leucine methyl ester; ML-SA1: mucolipin synthetic agonist 1; MTOR: mechanistic target of rapamycin kinase; PPP3CB: protein phosphatase 3 catalytic subunit beta; RPS6KB1/p70S6K: ribosomal protein S6 kinase B1; SMURF1: SMAD specific E3 ubiquitin protein ligase 1; TFEB: transcription factor EB.
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Affiliation(s)
- Qin Xia
- Key Laboratory of Molecular Medicine and Biological Diagnosis and Treatment (Ministry of Industry and Information Technology), School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Hanfei Zheng
- Key Laboratory of Molecular Medicine and Biological Diagnosis and Treatment (Ministry of Industry and Information Technology), School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Yang Li
- Key Laboratory of Molecular Medicine and Biological Diagnosis and Treatment (Ministry of Industry and Information Technology), School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Wanting Xu
- Key Laboratory of Molecular Medicine and Biological Diagnosis and Treatment (Ministry of Industry and Information Technology), School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Chengwei Wu
- Key Laboratory of Molecular Medicine and Biological Diagnosis and Treatment (Ministry of Industry and Information Technology), School of Life Science, Beijing Institute of Technology, Beijing, China
| | - Jiachen Xu
- State Key Laboratory of Molecular Oncology, Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Shanhu Li
- Department of Cell Engineering, Beijing Institute of Biotechnology, Beijing, China
| | - Lingqiang Zhang
- State Key Laboratory of Proteomics, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China
| | - Lei Dong
- Key Laboratory of Molecular Medicine and Biological Diagnosis and Treatment (Ministry of Industry and Information Technology), School of Life Science, Beijing Institute of Technology, Beijing, China
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9
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Brunialti E, Rizzi N, Pinto-Costa R, Villa A, Panzeri A, Meda C, Rebecchi M, Di Monte DA, Ciana P. Design and validation of a reporter mouse to study the dynamic regulation of TFEB and TFE3 activity through in vivo imaging techniques. Autophagy 2024:1-16. [PMID: 38522425 DOI: 10.1080/15548627.2024.2334111] [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: 07/14/2023] [Accepted: 03/18/2024] [Indexed: 03/26/2024] Open
Abstract
TFEB and TFE3 belong to the MiT/TFE family of transcription factors that bind identical DNA responsive elements in the regulatory regions of target genes. They are involved in regulating lysosomal biogenesis, function, exocytosis, autophagy, and lipid catabolism. Precise control of TFEB and TFE3 activity is crucial for processes such as senescence, stress response, energy metabolism, and cellular catabolism. Dysregulation of these factors is implicated in various diseases, thus researchers have explored pharmacological approaches to modulate MiT/TFE activity, considering these transcription factors as potential therapeutic targets. However, the physiological complexity of their functions and the lack of suitable in vivo tools have limited the development of selective MiT/TFE modulating agents. Here, we have created a reporter-based biosensor, named CLEARoptimized, facilitating the pharmacological profiling of TFEB- and TFE3-mediated transcription. This innovative tool enables the measurement of TFEB and TFE3 activity in living cells and mice through imaging and biochemical techniques. CLEARoptimized consists of a promoter with six coordinated lysosomal expression and regulation motifs identified through an in-depth bioinformatic analysis of the promoters of 128 TFEB-target genes. The biosensor drives the expression of luciferase and tdTomato reporter genes, allowing the quantification of TFEB and TFE3 activity in cells and in animals through optical imaging and biochemical assays. The biosensor's validity was confirmed by modulating MiT/TFE activity in both cell culture and reporter mice using physiological and pharmacological stimuli. Overall, this study introduces an innovative tool for studying autophagy and lysosomal pathway modulation at various biological levels, from individual cells to the entire organism.Abbreviations: CLEAR: coordinated lysosomal expression and regulation; MAR: matrix attachment regions; MiT: microphthalmia-associated transcription factor; ROI: region of interest; TBS: tris-buffered saline; TF: transcription factor; TFE3: transcription factor binding to IGHM enhancer 3; TFEB: transcription factor EB; TH: tyrosine hydroxylase; TK: thymidine kinase; TSS: transcription start site.
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Affiliation(s)
| | | | - Rita Pinto-Costa
- German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
| | - Alessandro Villa
- Department of Health Sciences, University of Milan, Milan, Italy
| | - Alessia Panzeri
- Department of Health Sciences, University of Milan, Milan, Italy
| | - Clara Meda
- Department of Health Sciences, University of Milan, Milan, Italy
| | - Monica Rebecchi
- Department of Health Sciences, University of Milan, Milan, Italy
| | | | - Paolo Ciana
- Department of Health Sciences, University of Milan, Milan, Italy
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10
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Yu X, Dang L, Zhang R, Yang W. Therapeutic Potential of Targeting the PERK Signaling Pathway in Ischemic Stroke. Pharmaceuticals (Basel) 2024; 17:353. [PMID: 38543139 PMCID: PMC10974972 DOI: 10.3390/ph17030353] [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: 01/25/2024] [Revised: 02/15/2024] [Accepted: 03/05/2024] [Indexed: 04/01/2024] Open
Abstract
Many pathologic states can lead to the accumulation of unfolded/misfolded proteins in cells. This causes endoplasmic reticulum (ER) stress and triggers the unfolded protein response (UPR), which encompasses three main adaptive branches. One of these UPR branches is mediated by protein kinase RNA-like ER kinase (PERK), an ER stress sensor. The primary consequence of PERK activation is the suppression of global protein synthesis, which reduces ER workload and facilitates the recovery of ER function. Ischemic stroke induces ER stress and activates the UPR. Studies have demonstrated the involvement of the PERK pathway in stroke pathophysiology; however, its role in stroke outcomes requires further clarification. Importantly, considering mounting evidence that supports the therapeutic potential of the PERK pathway in aging-related cognitive decline and neurodegenerative diseases, this pathway may represent a promising therapeutic target in stroke. Therefore, in this review, our aim is to discuss the current understanding of PERK in ischemic stroke, and to summarize pharmacologic tools for translational stroke research that targets PERK and its associated pathways.
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Affiliation(s)
| | | | | | - Wei Yang
- Multidisciplinary Brain Protection Program, Department of Anesthesiology, Duke University Medical Center, Box 3094, 303 Research Drive, Durham, NC 27710, USA
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11
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Chauhan N, Patro BS. Emerging roles of lysosome homeostasis (repair, lysophagy and biogenesis) in cancer progression and therapy. Cancer Lett 2024; 584:216599. [PMID: 38135207 DOI: 10.1016/j.canlet.2023.216599] [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: 09/28/2023] [Revised: 11/30/2023] [Accepted: 12/12/2023] [Indexed: 12/24/2023]
Abstract
In the era of personalized therapy, precise targeting of subcellular organelles holds great promise for cancer modality. Taking into consideration that lysosome represents the intersection site in numerous endosomal trafficking pathways and their modulation in cancer growth, progression, and resistance against cancer therapies, the lysosome is proposed as an attractive therapeutic target for cancer treatment. Based on the recent advances, the current review provides a comprehensive understanding of molecular mechanisms of lysosome homeostasis under 3R responses: Repair, Removal (lysophagy) and Regeneration of lysosomes. These arms of 3R responses have distinct role in lysosome homeostasis although their interdependency along with switching between the pathways still remain elusive. Recent advances underpinning the crucial role of (1) ESCRT complex dependent/independent repair of lysosome, (2) various Galectins-based sensing and ubiquitination in lysophagy and (3) TFEB/TFE proteins in lysosome regeneration/biogenesis of lysosome are outlined. Later, we also emphasised how these recent advancements may aid in development of phytochemicals and pharmacological agents for targeting lysosomes for efficient cancer therapy. Some of these lysosome targeting agents, which are now at various stages of clinical trials and patents, are also highlighted in this review.
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Affiliation(s)
- Nitish Chauhan
- Bio-Organic Division, Bhabha Atomic Research Centre, Mumbai, Maharashtra, 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai, Maharashtra, 400094, India
| | - Birija Sankar Patro
- Bio-Organic Division, Bhabha Atomic Research Centre, Mumbai, Maharashtra, 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai, Maharashtra, 400094, India.
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12
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Aleksandrova KV, Vorobev ML, Suvorova II. mTOR pathway occupies a central role in the emergence of latent cancer cells. Cell Death Dis 2024; 15:176. [PMID: 38418814 PMCID: PMC10902345 DOI: 10.1038/s41419-024-06547-3] [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: 11/11/2023] [Revised: 01/18/2024] [Accepted: 02/07/2024] [Indexed: 03/02/2024]
Abstract
The current focus in oncology research is the translational control of cancer cells as a major mechanism of cellular plasticity. Recent evidence has prompted a reevaluation of the role of the mTOR pathway in cancer development leading to new conclusions. The mechanistic mTOR inhibition is well known to be a tool for generating quiescent stem cells and cancer cells. In response to mTOR suppression, quiescent cancer cells dynamically change their proteome, triggering alternative non-canonical translation mechanisms. The shift to selective translation may have clinical relevance, since quiescent tumor cells can acquire new phenotypical features. This review provides new insights into the patterns of mTOR functioning in quiescent cancer cells, enhancing our current understanding of the biology of latent metastasis.
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Affiliation(s)
| | - Mikhail L Vorobev
- Institute of Cytology, Russian Academy of Sciences, St. Petersburg, Russian Federation
| | - Irina I Suvorova
- Institute of Cytology, Russian Academy of Sciences, St. Petersburg, Russian Federation.
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13
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Yang S, Ting CY, Lilly MA. The GATOR2 complex maintains lysosomal-autophagic function by inhibiting the protein degradation of MiT/TFEs. Mol Cell 2024; 84:727-743.e8. [PMID: 38325378 PMCID: PMC10940221 DOI: 10.1016/j.molcel.2024.01.012] [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: 01/12/2023] [Revised: 07/31/2023] [Accepted: 01/17/2024] [Indexed: 02/09/2024]
Abstract
Lysosomes are central to metabolic homeostasis. The microphthalmia bHLH-LZ transcription factors (MiT/TFEs) family members MITF, TFEB, and TFE3 promote the transcription of lysosomal and autophagic genes and are often deregulated in cancer. Here, we show that the GATOR2 complex, an activator of the metabolic regulator TORC1, maintains lysosomal function by protecting MiT/TFEs from proteasomal degradation independent of TORC1, GATOR1, and the RAG GTPase. We determine that in GATOR2 knockout HeLa cells, members of the MiT/TFEs family are ubiquitylated by a trio of E3 ligases and are degraded, resulting in lysosome dysfunction. Additionally, we demonstrate that GATOR2 protects MiT/TFE proteins in pancreatic ductal adenocarcinoma and Xp11 translocation renal cell carcinoma, two cancers that are driven by MiT/TFE hyperactivation. In summary, we find that the GATOR2 complex has independent roles in TORC1 regulation and MiT/TFE protein protection and thus is central to coordinating cellular metabolism with control of the lysosomal-autophagic system.
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Affiliation(s)
- Shu Yang
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
| | - Chun-Yuan Ting
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA
| | - Mary A Lilly
- Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892, USA.
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14
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Wong JC, Oliveira AN, Khemraj P, Hood DA. The role of TFE3 in mediating skeletal muscle mitochondrial adaptations to exercise training. J Appl Physiol (1985) 2024; 136:262-273. [PMID: 38095014 DOI: 10.1152/japplphysiol.00484.2023] [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: 07/17/2023] [Revised: 12/07/2023] [Accepted: 12/11/2023] [Indexed: 01/26/2024] Open
Abstract
Transcription factor E3 (TFE3) is a transcription factor that activates the expression of lysosomal genes involved in the clearance of dysfunctional mitochondria, termed mitophagy. With exercise, TFE3 is presumed to optimize the mitochondrial pool through the removal of organelles via lysosomes. However, the molecular mechanisms of the involved pathways remain unknown. Wild-type (WT) and TFE3 knockout (KO) mice were subjected to 6 wk of voluntary wheel running as an endurance training regimen. This was followed by a 45-min bout of in situ stimulation of the sciatic nerve innervating hindlimb muscles to evaluate muscle fatigue and contractile properties. A subset of animals was treated with colchicine to measure autophagy and mitophagy flux. Fatigability during stimulation was reduced with training in WT animals, as seen by a 13% increase in the percentage of maximum force at 5 min of stimulation, and a 30% increase at 30 minutes. Permeabilized fiber oxygen consumption was also improved with training. Concurrent with improved muscle and mitochondrial function, cytochrome c oxidase (COX) activity and COX I protein expression were increased in trained WT animals compared to untrained animals, signifying an increase in mitochondrial content. These training adaptations were abolished with the loss of TFE3. Surprisingly, the absence of TFE3 did not affect lysosomal content nor did it blunt the induction of mitophagy flux with contractile activity compared to WT mice. Our results suggest that the loss of TFE3 compromises beneficial training adaptations that lead to improved muscle endurance and mitochondrial function.NEW & NOTEWORTHY Our understanding of the role of transcription factor E3 (TFE3) in skeletal muscle is very limited. This research shows that TFE3 plays a direct role in skeletal muscle mitochondrial enhancement with exercise training, thereby introducing a paradigm shift in our perception of the function of TFE3 in mitochondrial maintenance, beyond mitophagy. This research serves to introduce TFE3 as a protein that holds promise as a future therapeutic target for metabolic diseases and skeletal muscle dysfunction.
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Affiliation(s)
- Jenna C Wong
- Muscle Health Research Centre, School of Kinesiology and Health Science, York University, Toronto, Ontario, Canada
| | - Ashley N Oliveira
- Muscle Health Research Centre, School of Kinesiology and Health Science, York University, Toronto, Ontario, Canada
| | - Priyanka Khemraj
- Muscle Health Research Centre, School of Kinesiology and Health Science, York University, Toronto, Ontario, Canada
| | - David A Hood
- Muscle Health Research Centre, School of Kinesiology and Health Science, York University, Toronto, Ontario, Canada
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15
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Xu G, Peng H, Yao R, Yang Y, Li B. TFEB and TFE3 cooperate in regulating inorganic arsenic-induced autophagy-lysosome impairment and immuno-dysfunction in primary dendritic cells. Cell Biol Toxicol 2024; 40:4. [PMID: 38267572 PMCID: PMC10808261 DOI: 10.1007/s10565-024-09841-0] [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: 09/22/2023] [Accepted: 12/04/2023] [Indexed: 01/26/2024]
Abstract
Arsenic (As) is a prevalent and hazardous environmental toxicant associated with cancer and various health problems, which has been shown suppressive effects on dendritic cells (DCs). Autophagy is essential for the innate and adaptive immune responses of DCs, and the transcription factors TFEB and TFE3 are key regulators of autophagic and lysosomal target genes. However, the detrimental alterations of the autophagy-lysosome pathway in As-exposed DCs and the possible coordinating roles of TFEB and TFE3 in the immune dysfunction of this cell are less understood. In this paper, we found that As exposure significantly impaired lysosomal number, lysosomal acidic environment, and lysosomal membrane permeabilization, which might lead to blocked autophagic flux in cultured DCs. Furthermore, our results confirmed that TFEB or TFE3 knockdown exacerbated the disorders of lysosome and the blockade of autophagic flux in As-exposed DCs, and also enhanced the inhibitory expression of co-stimulatory molecules Cd80 and Cd83; adhesion molecule Icam1; cytokines TNF-α, IL-1β, and IL-6; chemokine receptor Ccr7; and antigen-presenting molecules MHC II and MHC I. By contrast, overexpression of TFEB or TFE3 partially alleviated the above-mentioned impairment of DCs by inorganic As exposure. In conclusion, these findings reveal a previously unappreciated inhibition of lysosome-mediated degradation and damage of lysosomal membrane integrity leading to dysregulated autophagy and impaired immune functions of DCs by arsenicals, and also suggest TFEB and TFE3 as potential therapeutic targets for ameliorating As toxicity.
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Affiliation(s)
- Guowei Xu
- Key Laboratory of Environmental Stress and Chronic Disease Control and Prevention, Ministry of Education (China Medical University), Shenyang, Liaoning, People's Republic of China
- Environment and Non-Communicable Disease Research Center, Key Laboratory of Arsenic-Related Biological Effects and Prevention and Treatment in Liaoning Province, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area Liaoning Province, Shenyang, 110122, People's Republic of China
| | - Huaguang Peng
- Key Laboratory of Environmental Stress and Chronic Disease Control and Prevention, Ministry of Education (China Medical University), Shenyang, Liaoning, People's Republic of China
- Environment and Non-Communicable Disease Research Center, Key Laboratory of Arsenic-Related Biological Effects and Prevention and Treatment in Liaoning Province, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area Liaoning Province, Shenyang, 110122, People's Republic of China
| | - Ran Yao
- Key Laboratory of Environmental Stress and Chronic Disease Control and Prevention, Ministry of Education (China Medical University), Shenyang, Liaoning, People's Republic of China
- Environment and Non-Communicable Disease Research Center, Key Laboratory of Arsenic-Related Biological Effects and Prevention and Treatment in Liaoning Province, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area Liaoning Province, Shenyang, 110122, People's Republic of China
| | - Yuqing Yang
- Key Laboratory of Environmental Stress and Chronic Disease Control and Prevention, Ministry of Education (China Medical University), Shenyang, Liaoning, People's Republic of China
- Environment and Non-Communicable Disease Research Center, Key Laboratory of Arsenic-Related Biological Effects and Prevention and Treatment in Liaoning Province, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area Liaoning Province, Shenyang, 110122, People's Republic of China
| | - Bing Li
- Key Laboratory of Environmental Stress and Chronic Disease Control and Prevention, Ministry of Education (China Medical University), Shenyang, Liaoning, People's Republic of China.
- Environment and Non-Communicable Disease Research Center, Key Laboratory of Arsenic-Related Biological Effects and Prevention and Treatment in Liaoning Province, School of Public Health, China Medical University, No.77 Puhe Road, Shenyang North New Area Liaoning Province, Shenyang, 110122, People's Republic of China.
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16
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Bu KB, Kim M, Shin MK, Lee SH, Sung JS. Regulation of Benzo[a]pyrene-Induced Hepatic Lipid Accumulation through CYP1B1-Induced mTOR-Mediated Lipophagy. Int J Mol Sci 2024; 25:1324. [PMID: 38279324 PMCID: PMC10816991 DOI: 10.3390/ijms25021324] [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: 12/29/2023] [Revised: 01/17/2024] [Accepted: 01/19/2024] [Indexed: 01/28/2024] Open
Abstract
Metabolic dysfunction-associated steatotic liver disease (MASLD) is caused by lipid accumulation within the liver. The pathogenesis underlying its development is poorly understood. Benzo[a]pyrene (B[a]P) is a polycyclic aromatic hydrocarbon and a group 1 carcinogen. The aryl hydrocarbon receptor activation by B[a]P induces cytochrome P450 (CYP) enzymes, contributing to hepatic lipid accumulation. However, the molecular mechanism through which the B[a]P-mediated induction of CYP enzymes causes hepatic lipid accumulation is unknown. This research was conducted to elucidate the role of CYP1B1 in regulating B[a]P-induced lipid accumulation within hepatocytes. B[a]P increased hepatic lipid accumulation, which was mitigated by CYP1B1 knockdown. An increase in the mammalian target of rapamycin (mTOR) by B[a]P was specifically reduced by CYP1B1 knockdown. The reduction of mTOR increased the expression of autophagic flux-related genes and promoted phagolysosome formation. Both the expression and translocation of TFE3, a central regulator of lipophagy, were induced, along with the expression of lipophagy-related genes. Conversely, enhanced mTOR activity reduced TFE3 expression and translocation, which reduced the expression of lipophagy-related genes, diminished phagolysosome production, and increased lipid accumulation. Our results indicate that B[a]P-induced hepatic lipid accumulation is caused by CYP1B1-induced mTOR and the reduction of lipophagy, thereby introducing novel targets and mechanisms to provide insights for understanding B[a]P-induced MASLD.
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Affiliation(s)
| | | | | | | | - Jung-Suk Sung
- Department of Life Science, Dongguk University-Seoul, Goyang 10326, Republic of Korea; (K.-B.B.); (M.K.); (M.K.S.); (S.-H.L.)
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17
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Jiang X, Huang K, Sun X, Li Y, Hua L, Liu F, Huang R, Du J, Zeng H. Hexamethylene amiloride synergizes with venetoclax to induce lysosome-dependent cell death in acute myeloid leukemia. iScience 2024; 27:108691. [PMID: 38205254 PMCID: PMC10776932 DOI: 10.1016/j.isci.2023.108691] [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: 07/11/2023] [Revised: 10/15/2023] [Accepted: 12/05/2023] [Indexed: 01/12/2024] Open
Abstract
Tumors maintain an alkaline intracellular environment to enable rapid growth. The proton exporter NHE1 participates in maintenance of this pH gradient. However, whether targeting NHE1 could inhibit the growth of tumor cells remains unknown. Here, we report that the NHE1 inhibitor Hexamethylene amiloride (HA) efficiently suppresses the growth of AML cell lines. Moreover, HA combined with venetoclax synergized to efficiently inhibit the growth of AML cells. Interestingly, lysosomes are the main contributors to the synergism of HA and venetoclax in inhibiting AML cells. Most importantly, the combination of HA and venetoclax also had prominent anti-leukemia effects in both xenograft models and bone marrow samples from AML patients. In summary, our results provide evidence that the NHE1 inhibitor HA or its combination with venetoclax efficiently inhibits the growth of AML in vitro and in vivo.
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Affiliation(s)
- Xinya Jiang
- Department of Hematology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510630, China
- Department of Hematology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Kexiu Huang
- Department of Hematology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510630, China
| | - Xiaofan Sun
- Department of Hematology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510630, China
| | - Yue Li
- Department of Hematology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510630, China
| | - Lei Hua
- Department of Hematology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510630, China
| | - Fangshu Liu
- Department of Hematology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510630, China
| | - Rui Huang
- Department of Hematology, Zhujiang Hospital of Southern Medical University, Guangzhou, P.R. China
| | - Juan Du
- Department of Hematology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510630, China
| | - Hui Zeng
- Department of Hematology, The First Affiliated Hospital of Jinan University, Guangzhou, Guangdong 510630, China
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18
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Jeong J, Lee J, Talaia G, Kim W, Song J, Hong J, Yoo K, Gonzalez DG, Athonvarangkul D, Shin J, Dann P, Haberman AM, Kim LK, Ferguson SM, Choi J, Wysolmerski J. Intracellular calcium links milk stasis to lysosome-dependent cell death during early mammary gland involution. Cell Mol Life Sci 2024; 81:29. [PMID: 38212474 PMCID: PMC10784359 DOI: 10.1007/s00018-023-05044-8] [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: 06/10/2023] [Revised: 10/17/2023] [Accepted: 11/07/2023] [Indexed: 01/13/2024]
Abstract
Involution of the mammary gland after lactation is a dramatic example of coordinated cell death. Weaning causes distension of the alveolar structures due to the accumulation of milk, which, in turn, activates STAT3 and initiates a caspase-independent but lysosome-dependent cell death (LDCD) pathway. Although the importance of STAT3 and LDCD in early mammary involution is well established, it has not been entirely clear how milk stasis activates STAT3. In this report, we demonstrate that protein levels of the PMCA2 calcium pump are significantly downregulated within 2-4 h of experimental milk stasis. Reductions in PMCA2 expression correlate with an increase in cytoplasmic calcium in vivo as measured by multiphoton intravital imaging of GCaMP6f fluorescence. These events occur concomitant with the appearance of nuclear pSTAT3 expression but prior to significant activation of LDCD or its previously implicated mediators such as LIF, IL6, and TGFβ3, all of which appear to be upregulated by increased intracellular calcium. We further demonstrate that increased intracellular calcium activates STAT3 by inducing degradation of its negative regulator, SOCS3. We also observed that milk stasis, loss of PMCA2 expression and increased intracellular calcium levels activate TFEB, an important regulator of lysosome biogenesis through a process involving inhibition of CDK4/6 and cell cycle progression. In summary, these data suggest that intracellular calcium serves as an important proximal biochemical signal linking milk stasis to STAT3 activation, increased lysosomal biogenesis, and lysosome-mediated cell death.
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Affiliation(s)
- Jaekwang Jeong
- Section of Endocrinology and Metabolism, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA.
| | - Jongwon Lee
- Department of Biomedical Sciences, Korea University College of Medicine, Seoul, Republic of Korea
| | - Gabriel Talaia
- Departments of Cell Biology and of Neuroscience, Wu Tsai Institute, Yale University School of Medicine, New Haven, CT, 06510, USA
| | - Wonnam Kim
- Division of Phamacology, School of Korean Medicine, Pusan National University, Yangsan, Gyeongnam, 50612, Republic of Korea
| | - Junho Song
- Department of Biomedical Sciences, Korea University College of Medicine, Seoul, Republic of Korea
| | - Juhyeon Hong
- Department of Biomedical Sciences, Korea University College of Medicine, Seoul, Republic of Korea
| | - Kwangmin Yoo
- Department of Biomedical Sciences, Korea University College of Medicine, Seoul, Republic of Korea
| | - David G Gonzalez
- Department of Genetics, Yale School of Medicine, New Haven, CT, 06510, USA
| | - Diana Athonvarangkul
- Section of Endocrinology and Metabolism, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Jaehun Shin
- Integrated Science Engineering Division, Underwood International College, Yonsei University, Seoul, Republic of Korea
| | - Pamela Dann
- Section of Endocrinology and Metabolism, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Ann M Haberman
- Departments of Immunobiology and Laboratory Medicine, Yale School of Medicine, New Haven, CT, 06510, USA
| | - Lark Kyun Kim
- Department of Biomedical Sciences, Graduate School of Medical Science, Brain Korea 21 Project, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, 06230, Republic of Korea
| | - Shawn M Ferguson
- Departments of Cell Biology and of Neuroscience, Wu Tsai Institute, Yale University School of Medicine, New Haven, CT, 06510, USA
| | - Jungmin Choi
- Department of Biomedical Sciences, Korea University College of Medicine, Seoul, Republic of Korea
| | - John Wysolmerski
- Section of Endocrinology and Metabolism, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA.
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19
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Mansat M, Botelho RJ. Lysosome identity crisis: Phosphoinositides and mTORC1 negotiate lysosomal behavior. Mol Cell 2024; 84:17-19. [PMID: 38181757 DOI: 10.1016/j.molcel.2023.12.009] [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: 12/08/2023] [Revised: 12/08/2023] [Accepted: 12/08/2023] [Indexed: 01/07/2024]
Abstract
Ebner et al.1 discovered a nutrient-dependent molecular feedback circuit that employs mTORC1, lipid kinases, and phosphatases to generate phosphatidylinositol-3-phosphate [PI(3)P] or phosphatidylinositol-4-phosphate [PI(4)P] in a mutually exclusive manner on lysosomes, which respectively convert lysosomes into organelles that support anabolism or catabolism.
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Affiliation(s)
- Mélanie Mansat
- Department of Chemistry and Biology, Toronto Metropolitan University, Toronto, ON, Canada
| | - Roberto J Botelho
- Department of Chemistry and Biology, Toronto Metropolitan University, Toronto, ON, Canada; Molecular Science Graduate Program, Toronto Metropolitan University, Toronto, ON, Canada.
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20
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Jeong E, Willett R, Rissone A, La Spina M, Puertollano R. TMEM55B links autophagy flux, lysosomal repair, and TFE3 activation in response to oxidative stress. Nat Commun 2024; 15:93. [PMID: 38168055 PMCID: PMC10761734 DOI: 10.1038/s41467-023-44316-6] [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: 07/20/2023] [Accepted: 12/07/2023] [Indexed: 01/05/2024] Open
Abstract
Lysosomes have emerged as critical regulators of cellular homeostasis. Here we show that the lysosomal protein TMEM55B contributes to restore cellular homeostasis in response to oxidative stress by three different mechanisms: (1) TMEM55B mediates NEDD4-dependent PLEKHM1 ubiquitination, causing PLEKHM1 proteasomal degradation and halting autophagosome/lysosome fusion; (2) TMEM55B promotes recruitment of components of the ESCRT machinery to lysosomal membranes to stimulate lysosomal repair; and (3) TMEM55B sequesters the FLCN/FNIP complex to facilitate translocation of the transcription factor TFE3 to the nucleus, allowing expression of transcriptional programs that enable cellular adaptation to stress. Knockout of tmem55 genes in zebrafish embryos increases their susceptibility to oxidative stress, causing early death of tmem55-KO animals in response to arsenite toxicity. Altogether, our work identifies a role for TMEM55B as a molecular sensor that coordinates autophagosome degradation, lysosomal repair, and activation of stress responses.
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Affiliation(s)
- Eutteum Jeong
- Cell and Developmental Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Rose Willett
- Cell and Developmental Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Alberto Rissone
- Cell and Developmental Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Martina La Spina
- Cell and Developmental Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Rosa Puertollano
- Cell and Developmental Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA.
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21
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Shao J, Lang Y, Ding M, Yin X, Cui L. Transcription Factor EB: A Promising Therapeutic Target for Ischemic Stroke. Curr Neuropharmacol 2024; 22:170-190. [PMID: 37491856 PMCID: PMC10788889 DOI: 10.2174/1570159x21666230724095558] [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: 05/08/2022] [Revised: 12/14/2022] [Accepted: 12/15/2022] [Indexed: 07/27/2023] Open
Abstract
Transcription factor EB (TFEB) is an important endogenous defensive protein that responds to ischemic stimuli. Acute ischemic stroke is a growing concern due to its high morbidity and mortality. Most survivors suffer from disabilities such as numbness or weakness in an arm or leg, facial droop, difficulty speaking or understanding speech, confusion, impaired balance or coordination, or loss of vision. Although TFEB plays a neuroprotective role, its potential effect on ischemic stroke remains unclear. This article describes the basic structure, regulation of transcriptional activity, and biological roles of TFEB relevant to ischemic stroke. Additionally, we explore the effects of TFEB on the various pathological processes underlying ischemic stroke and current therapeutic approaches. The information compiled here may inform clinical and basic studies on TFEB, which may be an effective therapeutic drug target for ischemic stroke.
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Affiliation(s)
- Jie Shao
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Yue Lang
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Manqiu Ding
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Xiang Yin
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Jilin University, Changchun, China
| | - Li Cui
- Department of Neurology and Neuroscience Center, The First Hospital of Jilin University, Jilin University, Changchun, China
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22
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Li F, Cai T, Yu L, Yu G, Zhang H, Geng Y, Kuang J, Wang Y, Cai Y, Xiao J, Wang X, Ding J, Xu H, Ni W, Zhou K. FGF-18 Protects the Injured Spinal cord in mice by Suppressing Pyroptosis and Promoting Autophagy via the AKT-mTOR-TRPML1 axis. Mol Neurobiol 2024; 61:55-73. [PMID: 37581847 DOI: 10.1007/s12035-023-03503-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 07/11/2023] [Indexed: 08/16/2023]
Abstract
Spinal cord injury (SCI) is a severe medical condition with lasting effects. The efficacy of numerous clinical treatments is hampered by the intricate pathophysiological mechanism of SCI. Fibroblast growth factor 18 (FGF-18) has been found to exert neuroprotective effects after brain ischaemia, but its effect after SCI has not been well explored. The aim of the present study was to explore the therapeutic effect of FGF-18 on SCI and the related mechanism. In the present study, a mouse model of SCI was used, and the results showed that FGF-18 may significantly affect functional recovery. The present findings demonstrated that FGF-18 directly promoted functional recovery by increasing autophagy and decreasing pyroptosis. In addition, FGF-18 increased autophagy, and the well-known autophagy inhibitor 3-methyladenine (3MA) reversed the therapeutic benefits of FGF-18 after SCI, suggesting that autophagy mediates the therapeutic effects of FGF-18 on SCI. A mechanistic study revealed that after stimulation of the protein kinase B (AKT)-transient receptor potential mucolipin 1 (TRPML1)-calcineurin signalling pathway, the FGF-18-induced increase in autophagy was mediated by the dephosphorylation and nuclear translocation of transcription factor E3 (TFE3). Together, these findings indicated that FGF-18 is a robust autophagy modulator capable of accelerating functional recovery after SCI, suggesting that it may be a promising treatment for SCI in the clinic.
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Affiliation(s)
- Feida Li
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 325027, Wenzhou, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, 325027, Wenzhou, China
- The Second Clinical Medical College of Wenzhou Medical University, 325027, Wenzhou, China
| | - Tingwen Cai
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 325027, Wenzhou, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, 325027, Wenzhou, China
- The Second Clinical Medical College of Wenzhou Medical University, 325027, Wenzhou, China
| | - Letian Yu
- Renji College of Wenzhou Medical University, 325027, Wenzhou, China
| | - Gaoxiang Yu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 325027, Wenzhou, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, 325027, Wenzhou, China
- The Second Clinical Medical College of Wenzhou Medical University, 325027, Wenzhou, China
| | - Haojie Zhang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 325027, Wenzhou, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, 325027, Wenzhou, China
- The Second Clinical Medical College of Wenzhou Medical University, 325027, Wenzhou, China
| | - Yibo Geng
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 325027, Wenzhou, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, 325027, Wenzhou, China
- The Second Clinical Medical College of Wenzhou Medical University, 325027, Wenzhou, China
| | - Jiaxuan Kuang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 325027, Wenzhou, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, 325027, Wenzhou, China
- The Second Clinical Medical College of Wenzhou Medical University, 325027, Wenzhou, China
- Cixi Biomedical Research Institute, Wenzhou Medical University, 315300, Ningbo, China
| | - Yongli Wang
- Zhejiang Provincial Key Laboratory of Orthopaedics, 325027, Wenzhou, China
- The Second Clinical Medical College of Wenzhou Medical University, 325027, Wenzhou, China
- Department of Orthopaedics, Huzhou Basic and Clinical Translation of Orthopaedics key Laboratory, Huzhou Central Hospital, 313300, Huzhou, China
| | - Yuepiao Cai
- School of Pharmaceutical Sciences, Wenzhou Medical University, 325035, Wenzhou, China
| | - Jian Xiao
- School of Pharmaceutical Sciences, Wenzhou Medical University, 325035, Wenzhou, China
| | - Xiangyang Wang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 325027, Wenzhou, China
- Zhejiang Provincial Key Laboratory of Orthopaedics, 325027, Wenzhou, China
- The Second Clinical Medical College of Wenzhou Medical University, 325027, Wenzhou, China
| | - Jian Ding
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 325027, Wenzhou, China.
- Zhejiang Provincial Key Laboratory of Orthopaedics, 325027, Wenzhou, China.
- The Second Clinical Medical College of Wenzhou Medical University, 325027, Wenzhou, China.
| | - Hui Xu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 325027, Wenzhou, China.
- Zhejiang Provincial Key Laboratory of Orthopaedics, 325027, Wenzhou, China.
- The Second Clinical Medical College of Wenzhou Medical University, 325027, Wenzhou, China.
| | - Wenfei Ni
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 325027, Wenzhou, China.
- Zhejiang Provincial Key Laboratory of Orthopaedics, 325027, Wenzhou, China.
- The Second Clinical Medical College of Wenzhou Medical University, 325027, Wenzhou, China.
| | - Kailiang Zhou
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, 325027, Wenzhou, China.
- Zhejiang Provincial Key Laboratory of Orthopaedics, 325027, Wenzhou, China.
- The Second Clinical Medical College of Wenzhou Medical University, 325027, Wenzhou, China.
- Cixi Biomedical Research Institute, Wenzhou Medical University, 315300, Ningbo, China.
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23
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Chae CW, Jung YH, Han HJ. Transcription Factor EB-Mediated Lysosomal Function Regulation for Determining Stem Cell Fate under Metabolic Stress. Mol Cells 2023; 46:727-735. [PMID: 38052487 PMCID: PMC10701302 DOI: 10.14348/molcells.2023.0143] [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: 08/25/2023] [Revised: 10/12/2023] [Accepted: 10/20/2023] [Indexed: 12/07/2023] Open
Abstract
Stem cells require high amounts of energy to replicate their genome and organelles and differentiate into numerous cell types. Therefore, metabolic stress has a major impact on stem cell fate determination, including self-renewal, quiescence, and differentiation. Lysosomes are catabolic organelles that influence stem cell function and fate by regulating the degradation of intracellular components and maintaining cellular homeostasis in response to metabolic stress. Lysosomal functions altered by metabolic stress are tightly regulated by the transcription factor EB (TFEB) and TFE3, critical regulators of lysosomal gene expression. Therefore, understanding the regulatory mechanism of TFEB-mediated lysosomal function may provide some insight into stem cell fate determination under metabolic stress. In this review, we summarize the molecular mechanism of TFEB/TFE3 in modulating stem cell lysosomal function and then elucidate the role of TFEB/TFE3-mediated transcriptional activity in the determination of stem cell fate under metabolic stress.
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Affiliation(s)
- Chang Woo Chae
- Department of Veterinary Physiology, College of Veterinary Medicine, Research Institute for Veterinary Science, and BK21 Four Future Veterinary Medicine Leading Education & Research Center, Seoul National University, Seoul 08826, Korea
- These authors contributed equally to this work
| | - Young Hyun Jung
- Department of Physiology, College of Medicine, Soonchunhyang University, Cheonan 31151, Korea
- These authors contributed equally to this work
| | - Ho Jae Han
- Department of Veterinary Physiology, College of Veterinary Medicine, Research Institute for Veterinary Science, and BK21 Four Future Veterinary Medicine Leading Education & Research Center, Seoul National University, Seoul 08826, Korea
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24
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Wang X, Shen Z, Zhang H, Zhang HJ, Li F, Yu L, Chen H, Zhou K, Xu H, Sheng S. Bexarotene improves motor function after spinal cord injury in mice. Neural Regen Res 2023; 18:2733-2742. [PMID: 37449638 DOI: 10.4103/1673-5374.373676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2023] Open
Abstract
Spinal cord injury is a challenge in orthopedics because it causes irreversible damage to the central nervous system. Therefore, early treatment to prevent lesion expansion is crucial for the management of patients with spinal cord injury. Bexarotene, a type of retinoid, exerts therapeutic effects on patients with cutaneous T-cell lymphoma and Parkinson's disease. Bexarotene has been proven to promote autophagy, but it has not been used in the treatment of spinal cord injury. To investigate the effects of bexarotene on spinal cord injury, we established a mouse model of T11-T12 spinal cord contusion and performed daily intraperitoneal injection of bexarotene for 5 consecutive days. We found that bexarotene effectively reduced the deposition of collagen and the number of pathological neurons in the injured spinal cord, increased the number of synapses of nerve cells, reduced oxidative stress, inhibited pyroptosis, promoted the recovery of motor function, and reduced death. Inhibition of autophagy with 3-methyladenine reversed the effects of bexarotene on spinal cord injury. Bexarotene enhanced the nuclear translocation of transcription factor E3, which further activated AMP-activated protein kinase-S-phase kinase-associated protein 2-coactivator-associated arginine methyltransferase 1 and AMP-activated protein kinase-mammalian target of rapamycin signaling pathways. Intravenous injection of transcription factor E3 shRNA or intraperitoneal injection of compound C, an AMP-activated protein kinase blocker, inhibited the effects of bexarotene. These findings suggest that bexarotene regulates nuclear translocation of transcription factor E3 through the AMP-activated protein kinase-S-phase kinase-associated protein 2-coactivator-associated arginine methyltransferase 1 and AMP-activated protein kinase-mammalian target of rapamycin signal pathways, promotes autophagy, decreases reactive oxygen species level, inhibits pyroptosis, and improves motor function after spinal cord injury.
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Affiliation(s)
- Xingyu Wang
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University; Zhejiang Provincial Key Laboratory of Orthopedics; The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Zhihao Shen
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University; Zhejiang Provincial Key Laboratory of Orthopedics; The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Haojie Zhang
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University; Zhejiang Provincial Key Laboratory of Orthopedics; The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Hao-Jie Zhang
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University; Zhejiang Provincial Key Laboratory of Orthopedics; The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Feida Li
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University; Zhejiang Provincial Key Laboratory of Orthopedics; The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Letian Yu
- Renji College of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Hua Chen
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University; Zhejiang Provincial Key Laboratory of Orthopedics; The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Kailiang Zhou
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University; Zhejiang Provincial Key Laboratory of Orthopedics; The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Hui Xu
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University; Zhejiang Provincial Key Laboratory of Orthopedics; The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Sunren Sheng
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University; Zhejiang Provincial Key Laboratory of Orthopedics; The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
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25
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Aufiero MA, Shlezinger N, Gjonbalaj M, Mills KAM, Ballabio A, Hohl TM. Dectin-1/CARD9 induction of the TFEB and TFE3 gene network is dispensable for phagocyte anti- Aspergillus activity in the lung. Infect Immun 2023; 91:e0021723. [PMID: 37861312 PMCID: PMC10652993 DOI: 10.1128/iai.00217-23] [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: 06/02/2023] [Accepted: 09/22/2023] [Indexed: 10/21/2023] Open
Abstract
Myeloid phagocytes of the respiratory immune system, such as neutrophils, monocytes, and alveolar macrophages, are essential for immunity to Aspergillus fumigatus, the most common etiologic agent of mold pneumonia worldwide. Following the engulfment of A. fumigatus conidia, fusion of the phagosome with the lysosome is a critical process for killing conidia. TFEB and TFE3 are transcription factors that regulate lysosomal biogenesis under stress and are activated by inflammatory stimuli in macrophages, but it is unknown whether TFEB and TFE3 contribute to anti-Aspergillus immunity during infection. We found that lung neutrophils express TFEB and TFE3, and their target genes were upregulated during A. fumigatus lung infection. In addition, A. fumigatus infection induced nuclear accumulation of TFEB and TFE3 in macrophages in a process regulated by Dectin-1 and CARD9. Genetic deletion of Tfeb and Tfe3 impaired macrophage killing of A. fumigatus conidia. However, in a murine immune-competent Aspergillus infection model with genetic deficiency of Tfeb and Tfe3 in hematopoietic cells, we surprisingly found that lung myeloid phagocytes had no defects in conidial phagocytosis or killing. Loss of TFEB and TFE3 did not impact murine survival or clearance of A. fumigatus from the lungs. Our findings indicate that myeloid phagocytes activate TFEB and TFE3 in response to A. fumigatus, and while this pathway promotes macrophage fungicidal activity in vitro, genetic loss can be functionally compensated in the lung, resulting in no measurable defect in fungal control and host survival.
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Affiliation(s)
- Mariano A. Aufiero
- Louis V. Gerstner Jr. Graduate School of Biomedical Sciences, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Neta Shlezinger
- Koret School of Veterinary Medicine, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Mergim Gjonbalaj
- Infectious Disease Service, Department of Medicine, Memorial Hospital, New York, New York, USA
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Kathleen A. M. Mills
- Immunology and Microbial Pathogenesis Graduate Program, Weill Cornell Graduate School, New York, New York, USA
| | - Andrea Ballabio
- Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, Italy
- Medical Genetics Unit, Department of Medical and Translational Science, Federico II University, Naples, Italy
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, Texas, USA
| | - Tobias M. Hohl
- Louis V. Gerstner Jr. Graduate School of Biomedical Sciences, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, New York, USA
- Infectious Disease Service, Department of Medicine, Memorial Hospital, New York, New York, USA
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, New York, USA
- Immunology and Microbial Pathogenesis Graduate Program, Weill Cornell Graduate School, New York, New York, USA
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26
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Tan JX, Finkel T. Lysosomes in senescence and aging. EMBO Rep 2023; 24:e57265. [PMID: 37811693 PMCID: PMC10626421 DOI: 10.15252/embr.202357265] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 08/08/2023] [Accepted: 09/21/2023] [Indexed: 10/10/2023] Open
Abstract
Dysfunction of lysosomes, the primary hydrolytic organelles in animal cells, is frequently associated with aging and age-related diseases. At the cellular level, lysosomal dysfunction is strongly linked to cellular senescence or the induction of cell death pathways. However, the precise mechanisms by which lysosomal dysfunction participates in these various cellular or organismal phenotypes have remained elusive. The ability of lysosomes to degrade diverse macromolecules including damaged proteins and organelles puts lysosomes at the center of multiple cellular stress responses. Lysosomal activity is tightly regulated by many coordinated cellular processes including pathways that function inside and outside of the organelle. Here, we collectively classify these coordinated pathways as the lysosomal processing and adaptation system (LYPAS). We review evidence that the LYPAS is upregulated by diverse cellular stresses, its adaptability regulates senescence and cell death decisions, and it can form the basis for therapeutic manipulation for a wide range of age-related diseases and potentially for aging itself.
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Affiliation(s)
- Jay Xiaojun Tan
- Aging InstituteUniversity of Pittsburgh School of Medicine/University of Pittsburgh Medical CenterPittsburghPAUSA
- Department of Cell BiologyUniversity of Pittsburgh School of MedicinePittsburghPAUSA
| | - Toren Finkel
- Aging InstituteUniversity of Pittsburgh School of Medicine/University of Pittsburgh Medical CenterPittsburghPAUSA
- Department of MedicineUniversity of Pittsburgh School of MedicinePittsburghPAUSA
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27
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Ma X, Manley S, Qian H, Li Y, Zhang C, Li K, Ding B, Guo F, Chen A, Zhang X, Liu M, Hao M, Kugler B, Morris EM, Thyfault J, Yang L, Sesaki H, Ni HM, McBride H, Ding WX. Mitochondria-lysosome-related organelles mediate mitochondrial clearance during cellular dedifferentiation. Cell Rep 2023; 42:113291. [PMID: 37862166 PMCID: PMC10842364 DOI: 10.1016/j.celrep.2023.113291] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 08/01/2023] [Accepted: 09/29/2023] [Indexed: 10/22/2023] Open
Abstract
Dysfunctional mitochondria are removed via multiple pathways, such as mitophagy, a selective autophagy process. Here, we identify an intracellular hybrid mitochondria-lysosome organelle (termed the mitochondria-lysosome-related organelle [MLRO]), which regulates mitochondrial homeostasis independent of canonical mitophagy during hepatocyte dedifferentiation. The MLRO is an electron-dense organelle that has either a single or double membrane with both mitochondria and lysosome markers. Mechanistically, the MLRO is likely formed from the fusion of mitochondria-derived vesicles (MDVs) with lysosomes through a PARKIN-, ATG5-, and DRP1-independent process, which is negatively regulated by transcription factor EB (TFEB) and associated with mitochondrial protein degradation and hepatocyte dedifferentiation. The MLRO, which is galectin-3 positive, is reminiscent of damaged lysosome and could be cleared by overexpression of TFEB, resulting in attenuation of hepatocyte dedifferentiation. Together, results from this study suggest that the MLRO may act as an alternative mechanism for mitochondrial quality control independent of canonical autophagy/mitophagy involved in cell dedifferentiation.
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Affiliation(s)
- Xiaowen Ma
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Sharon Manley
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Hui Qian
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Yuan Li
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Chen Zhang
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Kevin Li
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Benjamin Ding
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Fengli Guo
- Stowers Institute for Medical Research, Kansas City, MO, USA; Department of Pathology, University of Kansas Medical Center, Kansas City, KS, USA
| | - Allen Chen
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Xing Zhang
- Department of Biochemistry and Molecular Biology, University of New Mexico Health Sciences Center, Albuquerque, NM, USA
| | - Meilian Liu
- Department of Biochemistry and Molecular Biology, University of New Mexico Health Sciences Center, Albuquerque, NM, USA
| | - Meihua Hao
- Department of Anatomy and Cell Biology, Fraternal Order of Eagles Diabetes Research Center, Pappajohn Biomedical Institute, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Benjamin Kugler
- Department of Cell Biology and Physiology, University of Kansas Medical Center, Kansas City, KS, USA
| | - E Matthew Morris
- Department of Cell Biology and Physiology, University of Kansas Medical Center, Kansas City, KS, USA
| | - John Thyfault
- Department of Cell Biology and Physiology, University of Kansas Medical Center, Kansas City, KS, USA
| | - Ling Yang
- Department of Anatomy and Cell Biology, Fraternal Order of Eagles Diabetes Research Center, Pappajohn Biomedical Institute, University of Iowa Carver College of Medicine, Iowa City, IA, USA
| | - Hiromi Sesaki
- Department of Cell Biology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Hong-Min Ni
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Heidi McBride
- Montreal Neurological Institute, McGill University, Montreal, QC, Canada
| | - Wen-Xing Ding
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, KS 66160, USA; Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS, USA.
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28
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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: 4] [Impact Index Per Article: 4.0] [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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Chae CW, Yoon JH, Lim JR, Park JY, Cho JH, Jung YH, Choi GE, Lee HJ, Han HJ. TRIM16-mediated lysophagy suppresses high-glucose-accumulated neuronal Aβ. Autophagy 2023; 19:2752-2768. [PMID: 37357416 PMCID: PMC10472864 DOI: 10.1080/15548627.2023.2229659] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 06/13/2023] [Accepted: 06/21/2023] [Indexed: 06/27/2023] Open
Abstract
ABBREVIATIONS Aβ: amyloid β; AD: Alzheimer disease; AMPK: 5' adenosine monophosphate-activated protein kinase; CTSB: cathepsin B; CTSD: cathepsin D; DM: diabetes mellitus; ESCRT: endosomal sorting complex required for transport; FBXO27: F-box protein 27; iPSC-NDs: induced pluripotent stem cell-derived neuronal differentiated cells; LAMP1: lysosomal-associated membrane protein 1; LMP: lysosomal membrane permeabilization; LRSAM1: leucine rich repeat and sterile alpha motif containing 1; MAP1LC3/LC3: microtubule associated protein 1 light chain 3; MTORC1: mechanistic target of rapamycin kinase complex 1; p-MAPT/tau: phosphorylated microtubule associated protein tau; ROS: reactive oxygen species; STZ: streptozotocin; TFE3: transcription factor E3; TFEB: transcription factor EB; TRIM16: tripartite motif containing 16; UBE2QL1: ubiquitin conjugating enzyme E2 Q family like 1; VCP: valosin containing protein.
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Affiliation(s)
- Chang Woo Chae
- Department of Veterinary Physiology, College of Veterinary Medicine, Research Institute for Veterinary Science, and BK21 FOUR Future Veterinary Medicine Leading Education & Research Center, Seoul National University, Seoul, South Korea
| | - Jee Hyeon Yoon
- Department of Veterinary Physiology, College of Veterinary Medicine, Research Institute for Veterinary Science, and BK21 FOUR Future Veterinary Medicine Leading Education & Research Center, Seoul National University, Seoul, South Korea
| | - Jae Ryong Lim
- Department of Veterinary Physiology, College of Veterinary Medicine, Research Institute for Veterinary Science, and BK21 FOUR Future Veterinary Medicine Leading Education & Research Center, Seoul National University, Seoul, South Korea
| | - Ji Yong Park
- Department of Veterinary Physiology, College of Veterinary Medicine, Research Institute for Veterinary Science, and BK21 FOUR Future Veterinary Medicine Leading Education & Research Center, Seoul National University, Seoul, South Korea
| | - Ji Hyeon Cho
- Department of Veterinary Physiology, College of Veterinary Medicine, Research Institute for Veterinary Science, and BK21 FOUR Future Veterinary Medicine Leading Education & Research Center, Seoul National University, Seoul, South Korea
| | - Young Hyun Jung
- Department of Veterinary Physiology, College of Veterinary Medicine, Research Institute for Veterinary Science, and BK21 FOUR Future Veterinary Medicine Leading Education & Research Center, Seoul National University, Seoul, South Korea
| | - Gee Euhn Choi
- Laboratory of Veterinary Biochemistry, College of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University, Jeju, South Korea
- Interdisciplinary Graduate Program in Advanced Convergence Technology & Science, Jeju National University, Jeju, South Korea
| | - Hyun Jik Lee
- Laboratory of Veterinary Physiology, College of Veterinary Medicine, Chungbuk National University, Cheongju, Chungbuk, South Korea
- Institute for Stem Cell and Regenerative Medicine (ISCRM), Chungbuk National University, Cheongju, Chungbuk, South Korea
| | - Ho Jae Han
- Department of Veterinary Physiology, College of Veterinary Medicine, Research Institute for Veterinary Science, and BK21 FOUR Future Veterinary Medicine Leading Education & Research Center, Seoul National University, Seoul, South Korea
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30
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Contreras PS, Puertollano R. TFEB. Curr Biol 2023; 33:R886-R888. [PMID: 37699340 DOI: 10.1016/j.cub.2023.06.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/14/2023]
Abstract
Contreras and Puertollano introduce TFEB, a transcription factor that orchestrates cellular responses to stress via mechanisms including upregulation of lysosome biogenesis and autophagy.
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Affiliation(s)
- Pablo S Contreras
- Cell and Developmental Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Rosa Puertollano
- Cell and Developmental Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA.
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31
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Xu J, Xiong A, Wang X, Yan X, Chen Y, Ye X, Wang Z, Ding L, Yang L. Hyperoside attenuates pyrrolizidine alkaloids-induced liver injury by ameliorating TFEB-mediated mitochondrial dysfunction. Arch Pharm Res 2023; 46:694-712. [PMID: 37733287 DOI: 10.1007/s12272-023-01460-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 08/27/2023] [Indexed: 09/22/2023]
Abstract
Pyrrolizidine alkaloids (PAs) are potent hepatotoxins that can cause liver damage. Hyperoside (Hyp), a natural flavonoid, can be extracted from medicinal plants. Hyp displays hepatoprotective activity in various liver diseases. However, the potential effect and mechanism of action of Hyp in ameliorating PA-induced liver injury remain obscure. This study aimed to explore the protective effect of Hyp against PA-induced hepatotoxicity and its underlying mechanism. We established an in vitro model of PAs in mouse primary hepatocytes and developed a mouse model of acute PA toxicity to investigate the protective effect of Hyp. We found that Hyp notably attenuated PA-induced hepatotoxicity. RNA-sequencing showed that the beneficial effect of Hyp against PA-induced hepatotoxicity was associated with the transcription factor EB (TFEB)-peroxisome proliferator-activated receptor-γ coactivator-1-α (PGC1α) pathway. Our results confirmed that both the autophagy-lysosomal pathway and mitochondrial biogenesis were induced by Hyp through TFEB nuclear translocation in PA-induced liver injury. Furthermore, we demonstrated that activation of the mechanistic target of rapamycin complex 1 (mTORC1) by MHY 1485 decreased TFEB nuclear translocation and abrogated the protective effect of Hyp against PA-induced liver injury in mice. In contrast, inhibition of mTORC1 activity increased the level of TFEB and reduced hepatotoxicity induced by PAs in mouse livers. Likewise, Hyp-induced TFEB activation was validated in vitro. In conclusion, Hyp can activate the TFEB-mediated autophagy-lysosomal pathway and mitochondrial biogenesis through inhibition of mTORC1 activity, alleviating the liver injury induced by PAs, thus suggesting the potential value of Hyp in the treatment of PA-induced hepatotoxicity.
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Affiliation(s)
- Jie Xu
- Shanghai Key Laboratory of Complex Prescriptions, The MOE Key Laboratory for Standardization of Chinese Medicines and the SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Traditional Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Cai Lun Road 1200, Zhangjiang, Shanghai, 201203, China
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicines, Shanghai, 201203, China
- Shanghai R & D Center for Standardization of Traditional Chinese Medicines, Shanghai, 201203, China
| | - Aizhen Xiong
- Shanghai Key Laboratory of Complex Prescriptions, The MOE Key Laboratory for Standardization of Chinese Medicines and the SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Traditional Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Cai Lun Road 1200, Zhangjiang, Shanghai, 201203, China
- Shanghai R & D Center for Standardization of Traditional Chinese Medicines, Shanghai, 201203, China
| | - Xunjiang Wang
- Shanghai Key Laboratory of Complex Prescriptions, The MOE Key Laboratory for Standardization of Chinese Medicines and the SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Traditional Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Cai Lun Road 1200, Zhangjiang, Shanghai, 201203, China
- Shanghai R & D Center for Standardization of Traditional Chinese Medicines, Shanghai, 201203, China
| | - Xing Yan
- Shanghai Key Laboratory of Complex Prescriptions, The MOE Key Laboratory for Standardization of Chinese Medicines and the SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Traditional Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Cai Lun Road 1200, Zhangjiang, Shanghai, 201203, China
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicines, Shanghai, 201203, China
- Shanghai R & D Center for Standardization of Traditional Chinese Medicines, Shanghai, 201203, China
| | - Yilin Chen
- Shanghai Key Laboratory of Complex Prescriptions, The MOE Key Laboratory for Standardization of Chinese Medicines and the SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Traditional Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Cai Lun Road 1200, Zhangjiang, Shanghai, 201203, China
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicines, Shanghai, 201203, China
- Shanghai R & D Center for Standardization of Traditional Chinese Medicines, Shanghai, 201203, China
| | - Xuanling Ye
- Shanghai Key Laboratory of Complex Prescriptions, The MOE Key Laboratory for Standardization of Chinese Medicines and the SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Traditional Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Cai Lun Road 1200, Zhangjiang, Shanghai, 201203, China
- Shanghai R & D Center for Standardization of Traditional Chinese Medicines, Shanghai, 201203, China
| | - Zhengtao Wang
- Shanghai Key Laboratory of Complex Prescriptions, The MOE Key Laboratory for Standardization of Chinese Medicines and the SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Traditional Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Cai Lun Road 1200, Zhangjiang, Shanghai, 201203, China
- Shanghai R & D Center for Standardization of Traditional Chinese Medicines, Shanghai, 201203, China
| | - Lili Ding
- Shanghai Key Laboratory of Complex Prescriptions, The MOE Key Laboratory for Standardization of Chinese Medicines and the SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Traditional Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Cai Lun Road 1200, Zhangjiang, Shanghai, 201203, China.
- Shanghai R & D Center for Standardization of Traditional Chinese Medicines, Shanghai, 201203, China.
| | - Li Yang
- Shanghai Key Laboratory of Complex Prescriptions, The MOE Key Laboratory for Standardization of Chinese Medicines and the SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Traditional Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Cai Lun Road 1200, Zhangjiang, Shanghai, 201203, China.
- Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicines, Shanghai, 201203, China.
- Shanghai R & D Center for Standardization of Traditional Chinese Medicines, Shanghai, 201203, China.
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Kim SH, Cho YS, Kim Y, Park J, Yoo SM, Gwak J, Kim Y, Gwon Y, Kam TI, Jung YK. Endolysosomal impairment by binding of amyloid beta or MAPT/Tau to V-ATPase and rescue via the HYAL-CD44 axis in Alzheimer disease. Autophagy 2023; 19:2318-2337. [PMID: 36843263 PMCID: PMC10351450 DOI: 10.1080/15548627.2023.2181614] [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: 04/14/2022] [Revised: 02/10/2023] [Accepted: 02/13/2023] [Indexed: 02/28/2023] Open
Abstract
Impaired activities and abnormally enlarged structures of endolysosomes are frequently observed in Alzheimer disease (AD) brains. However, little is known about whether and how endolysosomal dysregulation is triggered and associated with AD. Here, we show that vacuolar ATPase (V-ATPase) is a hub that mediates proteopathy of oligomeric amyloid beta (Aβ) and hyperphosphorylated MAPT/Tau (p-MAPT/Tau). Endolysosomal integrity was largely destroyed in Aβ-overloaded or p-MAPT/Tau-positive neurons in culture and AD brains, which was a necessary step for triggering neurotoxicity, and treatments with acidic nanoparticles or endocytosis inhibitors rescued the endolysosomal impairment and neurotoxicity. Interestingly, we found that the lumenal ATP6V0C and cytosolic ATP6V1B2 subunits of the V-ATPase complex bound to the internalized Aβ and cytosolic PHF-1-reactive MAPT/Tau, respectively. Their interactions disrupted V-ATPase activity and accompanying endolysosomal activity in vitro and induced neurodegeneration. Using a genome-wide functional screen, we isolated a suppressor, HYAL (hyaluronidase), which reversed the endolysosomal dysfunction and proteopathy and alleviated the memory impairment in 3xTg-AD mice. Further, we found that its metabolite hyaluronic acid (HA) and HA receptor CD44 attenuated neurotoxicity in affected neurons via V-ATPase. We propose that endolysosomal V-ATPase is a bona fide proteotoxic receptor that binds to pathogenic proteins and deteriorates endolysosomal function in AD, leading to neurodegeneration in proteopathy.Abbreviations: AAV, adeno-associated virus; Aβ, amyloid beta; AD, Alzheimer disease; APP, amyloid beta precursor protein; ATP6V0C, ATPase H+ transporting V0 subunit c; ATP6V1A, ATPase H+ transporting V1 subunit A; ATP6V1B2, ATPase H+ transporting V1 subunit B2; CD44.Fc, CD44-mouse immunoglobulin Fc fusion construct; Co-IP, co-immunoprecipitation; CTSD, cathepsin D; HA, hyaluronic acid; HMWHA, high-molecular-weight hyaluronic acid; HYAL, hyaluronidase; i.c.v, intracerebroventricular; LMWHA, low-molecular-weight hyaluronic acid; NPs, nanoparticles; p-MAPT/Tau, hyperphosphorylated microtubule associated protein tau; PI3K, phosphoinositide 3-kinase; V-ATPase, vacuolar-type H+-translocating ATPase; WT, wild-type.
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Affiliation(s)
- Seo-Hyun Kim
- School of Biological Sciences, Seoul National University, Seoul, Korea
| | - Young-Sin Cho
- School of Biological Sciences, Seoul National University, Seoul, Korea
| | - Youbin Kim
- Interdisciplinary Program in Neuroscience, Seoul National University, Seoul, Korea
| | - Jisu Park
- School of Biological Sciences, Seoul National University, Seoul, Korea
| | - Seung-Min Yoo
- School of Biological Sciences, Seoul National University, Seoul, Korea
| | - Jimin Gwak
- School of Biological Sciences, Seoul National University, Seoul, Korea
| | - Youngwon Kim
- School of Biological Sciences, Seoul National University, Seoul, Korea
| | - Youngdae Gwon
- School of Medicine, Sungkyunkwan University, Suwon, Korea
| | - Tae-in Kam
- Department of Neurology and Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Yong-Keun Jung
- School of Biological Sciences, Seoul National University, Seoul, Korea
- Interdisciplinary Program in Neuroscience, Seoul National University, Seoul, Korea
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33
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Shi F, Collins S. Regulation of mTOR Signaling: Emerging Role of Cyclic Nucleotide-Dependent Protein Kinases and Implications for Cardiometabolic Disease. Int J Mol Sci 2023; 24:11497. [PMID: 37511253 PMCID: PMC10380887 DOI: 10.3390/ijms241411497] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/07/2023] [Accepted: 07/13/2023] [Indexed: 07/30/2023] Open
Abstract
The mechanistic target of rapamycin (mTOR) kinase is a central regulator of cell growth and metabolism. It is the catalytic subunit of two distinct large protein complexes, mTOR complex 1 (mTORC1) and mTORC2. mTOR activity is subjected to tight regulation in response to external nutrition and growth factor stimulation. As an important mechanism of signaling transduction, the 'second messenger' cyclic nucleotides including cAMP and cGMP and their associated cyclic nucleotide-dependent kinases, including protein kinase A (PKA) and protein kinase G (PKG), play essential roles in mediating the intracellular action of a variety of hormones and neurotransmitters. They have also emerged as important regulators of mTOR signaling in various physiological and disease conditions. However, the mechanism by which cAMP and cGMP regulate mTOR activity is not completely understood. In this review, we will summarize the earlier work establishing the ability of cAMP to dampen mTORC1 activation in response to insulin and growth factors and then discuss our recent findings demonstrating the regulation of mTOR signaling by the PKA- and PKG-dependent signaling pathways. This signaling framework represents a new non-canonical regulation of mTOR activity that is independent of AKT and could be a novel mechanism underpinning the action of a variety of G protein-coupled receptors that are linked to the mTOR signaling network. We will further review the implications of these signaling events in the context of cardiometabolic disease, such as obesity, non-alcoholic fatty liver disease, and cardiac remodeling. The metabolic and cardiac phenotypes of mouse models with targeted deletion of Raptor and Rictor, the two essential components for mTORC1 and mTORC2, will be summarized and discussed.
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Affiliation(s)
- Fubiao Shi
- Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Sheila Collins
- Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, TN 37232, USA
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Sun Y, Ni X, Cheng S, Yu X, Jin X, Chen L, Yang Z, Xia D, Chen Z, Hu MG, Hou X. Acteoside improves adipocyte browning by CDK6-mediated mTORC1-TFEB pathway. Biochim Biophys Acta Mol Cell Biol Lipids 2023:159364. [PMID: 37433343 DOI: 10.1016/j.bbalip.2023.159364] [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: 02/10/2023] [Revised: 06/10/2023] [Accepted: 07/04/2023] [Indexed: 07/13/2023]
Abstract
Adipocyte browning increases energy expenditure by thermogenesis, which has been considered a potential strategy against obesity and its related metabolic diseases. Phytochemicals derived from natural products with the ability to improve adipocyte thermogenesis have aroused extensive attention. Acteoside (Act), a phenylethanoid glycoside, exists in various medicinal or edible plants and has been shown to regulate metabolic disorders. Here, the browning effect of Act was evaluated by stimulating beige cell differentiation from the stromal vascular fraction (SVF) in the inguinal white adipose tissue (iWAT) and 3 T3-L1 preadipocytes, and by converting the iWAT-SVF derived mature white adipocytes. Act improves adipocyte browning by differentiation of the stem/progenitors into beige cells and by direct conversion of mature white adipocytes into beige cells. Mechanistically, Act inhibited CDK6 and mTOR, and consequently relieved phosphorylation of the transcription factor EB (TFEB) and increased its nuclear retention, leading to induction of PGC-1α, a driver of mitochondrial biogenesis, and UCP1-dependent browning. These data thus unveil a CDK6-mTORC1-TFEB pathway that regulates Act-induced adipocyte browning.
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Affiliation(s)
- Yunxia Sun
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China; Academy of Chinese Medical Science, Zhejiang Chinese Medical University, China
| | - Xintao Ni
- Academy of Chinese Medical Science, Zhejiang Chinese Medical University, China
| | - Siyao Cheng
- Academy of Chinese Medical Science, Zhejiang Chinese Medical University, China
| | - Xiaofeng Yu
- Academy of Chinese Medical Science, Zhejiang Chinese Medical University, China
| | - Xiaoqin Jin
- Academy of Chinese Medical Science, Zhejiang Chinese Medical University, China
| | - Liangxin Chen
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhenggang Yang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Disease, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Daozong Xia
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhe Chen
- The Second Clinical Medical College, Zhejiang Chinese Medical University, China
| | - Miaofen G Hu
- Department of Medicine, Division of Hematology and Oncology, Tufts Medical Center, Boston, MA, USA
| | - Xiaoli Hou
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China; Academy of Chinese Medical Science, Zhejiang Chinese Medical University, China.
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35
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Patel S, Bhatt AM, Bhansali P, Setty SRG. Pseudophosphatase STYXL1 depletion enhances glucocerebrosidase trafficking to lysosomes via ER stress. Traffic 2023; 24:254-269. [PMID: 37198709 DOI: 10.1111/tra.12886] [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: 12/07/2022] [Revised: 03/28/2023] [Accepted: 03/29/2023] [Indexed: 05/19/2023]
Abstract
Pseudophosphatases are catalytically inactive but share sequence and structural similarities with classical phosphatases. STYXL1 is a pseudophosphatase that belongs to the family of dual-specificity phosphatases and is known to regulate stress granule formation, neurite formation and apoptosis in different cell types. However, the role of STYXL1 in regulating cellular trafficking or the lysosome function has not been elucidated. Here, we show that the knockdown of STYXL1 enhances the trafficking of β-glucocerebrosidase (β-GC) and its lysosomal activity in HeLa cells. Importantly, the STYXL1-depleted cells display enhanced distribution of endoplasmic reticulum (ER), late endosome and lysosome compartments. Further, knockdown of STYXL1 causes the nuclear translocation of unfolded protein response (UPR) and lysosomal biogenesis transcription factors. However, the upregulated β-GC activity in the lysosomes is independent of TFEB/TFE3 nuclear localization in STYXL1 knockdown cells. The treatment of STYXL1 knockdown cells with 4-PBA (ER stress attenuator) significantly reduces the β-GC activity equivalent to control cells but not additive with thapsigargin, an ER stress activator. Additionally, STYXL1-depleted cells show the enhanced contact of lysosomes with ER, possibly via increased UPR. The depletion of STYXL1 in human primary fibroblasts derived from Gaucher patients showed moderately enhanced lysosomal enzyme activity. Overall, these studies illustrated the unique role of pseudophosphatase STYXL1 in modulating the lysosome function both in normal and lysosome-storage disorder cell types. Thus, designing small molecules against STYXL1 possibly can restore the lysosome activity by enhancing ER stress in Gaucher disease.
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Affiliation(s)
- Saloni Patel
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore, India
| | - Anshul Milap Bhatt
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore, India
| | - Priyanka Bhansali
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore, India
| | - Subba Rao Gangi Setty
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore, India
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36
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Dang TT, Kim MJ, Lee YY, Le HT, Kim KH, Nam S, Hyun SH, Kim HL, Chung SW, Chung HT, Jho EH, Yoshida H, Kim K, Park CY, Lee MS, Back SH. Phosphorylation of EIF2S1 (eukaryotic translation initiation factor 2 subunit alpha) is indispensable for nuclear translocation of TFEB and TFE3 during ER stress. Autophagy 2023; 19:2111-2142. [PMID: 36719671 PMCID: PMC10283430 DOI: 10.1080/15548627.2023.2173900] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 01/21/2023] [Accepted: 01/24/2023] [Indexed: 02/01/2023] Open
Abstract
There are diverse links between macroautophagy/autophagy pathways and unfolded protein response (UPR) pathways under endoplasmic reticulum (ER) stress conditions to restore ER homeostasis. Phosphorylation of EIF2S1/eIF2α is an important mechanism that can regulate all three UPR pathways through transcriptional and translational reprogramming to maintain cellular homeostasis and overcome cellular stresses. In this study, to investigate the roles of EIF2S1 phosphorylation in regulation of autophagy during ER stress, we used EIF2S1 phosphorylation-deficient (A/A) cells in which residue 51 was mutated from serine to alanine. A/A cells exhibited defects in several steps of autophagic processes (such as autophagosome and autolysosome formation) that are regulated by the transcriptional activities of the autophagy master transcription factors TFEB and TFE3 under ER stress conditions. EIF2S1 phosphorylation was required for nuclear translocation of TFEB and TFE3 during ER stress. In addition, EIF2AK3/PERK, PPP3/calcineurin-mediated dephosphorylation of TFEB and TFE3, and YWHA/14-3-3 dissociation were required for their nuclear translocation, but were insufficient to induce their nuclear retention during ER stress. Overexpression of the activated ATF6/ATF6α form, XBP1s, and ATF4 differentially rescued defects of TFEB and TFE3 nuclear translocation in A/A cells during ER stress. Consequently, overexpression of the activated ATF6 or TFEB form more efficiently rescued autophagic defects, although XBP1s and ATF4 also displayed an ability to restore autophagy in A/A cells during ER stress. Our results suggest that EIF2S1 phosphorylation is important for autophagy and UPR pathways, to restore ER homeostasis and reveal how EIF2S1 phosphorylation connects UPR pathways to autophagy.Abbreviations: A/A: EIF2S1 phosphorylation-deficient; ACTB: actin beta; Ad-: adenovirus-; ATF6: activating transcription factor 6; ATZ: SERPINA1/α1-antitrypsin with an E342K (Z) mutation; Baf A1: bafilomycin A1; BSA: bovine serum albumin; CDK4: cyclin dependent kinase 4; CDK6: cyclin dependent kinase 6; CHX: cycloheximide; CLEAR: coordinated lysosomal expression and regulation; Co-IP: coimmunoprecipitation; CTSB: cathepsin B; CTSD: cathepsin D; CTSL: cathepsin L; DAPI: 4',6-diamidino-2-phenylindole dihydrochloride; DMEM: Dulbecco's modified Eagle's medium; DMSO: dimethyl sulfoxide; DTT: dithiothreitol; EBSS: Earle's Balanced Salt Solution; EGFP: enhanced green fluorescent protein; EIF2S1/eIF2α: eukaryotic translation initiation factor 2 subunit alpha; EIF2AK3/PERK: eukaryotic translation initiation factor 2 alpha kinase 3; ER: endoplasmic reticulum; ERAD: endoplasmic reticulum-associated degradation; ERN1/IRE1α: endoplasmic reticulum to nucleus signaling 1; FBS: fetal bovine serum; gRNA: guide RNA; GSK3B/GSK3β: glycogen synthase kinase 3 beta; HA: hemagglutinin; Hep: immortalized hepatocyte; IF: immunofluorescence; IRES: internal ribosome entry site; KO: knockout; LAMP1: lysosomal associated membrane protein 1; LMB: leptomycin B; LPS: lipopolysaccharide; MAP1LC3A/B/LC3A/B: microtubule associated protein 1 light chain 3 alpha/beta; MAP1LC3B/LC3B: microtubule associated protein 1 light chain 3 beta; MEFs: mouse embryonic fibroblasts; MFI: mean fluorescence intensity; MTORC1: mechanistic target of rapamycin kinase complex 1; NES: nuclear export signal; NFE2L2/NRF2: NFE2 like bZIP transcription factor 2; OE: overexpression; PBS: phosphate-buffered saline; PLA: proximity ligation assay; PPP3/calcineurin: protein phosphatase 3; PTM: post-translational modification; SDS: sodium dodecyl sulfate; SDS-PAGE: sodium dodecyl sulfate-polyacrylamide gel electrophoresis; SEM: standard error of the mean; TEM: transmission electron microscopy; TFE3: transcription factor E3; TFEB: transcription factor EB; TFs: transcription factors; Tg: thapsigargin; Tm: tunicamycin; UPR: unfolded protein response; WB: western blot; WT: wild-type; Xbp1s: spliced Xbp1; XPO1/CRM1: exportin 1.
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Affiliation(s)
- Thao Thi Dang
- School of Biological Sciences, University of Ulsan, Ulsan, 44610, Korea
| | - Mi-Jeong Kim
- School of Biological Sciences, University of Ulsan, Ulsan, 44610, Korea
| | - Yoon Young Lee
- Department of Biological Sciences, School of Life Sciences, Ulsan National Institute of Science and Technology, Ulsan, 44919, Korea
| | - Hien Thi Le
- School of Biological Sciences, University of Ulsan, Ulsan, 44610, Korea
| | - Kook Hwan Kim
- Severance Biomedical Research Institute, Yonsei University College of Medicine, 03722, Seoul, Korea
| | - Somi Nam
- School of Biological Sciences, University of Ulsan, Ulsan, 44610, Korea
| | - Seung Hwa Hyun
- School of Biological Sciences, University of Ulsan, Ulsan, 44610, Korea
| | - Hong Lim Kim
- Integrative Research Support Center, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Su Wol Chung
- School of Biological Sciences, University of Ulsan, Ulsan, 44610, Korea
| | - Hun Taeg Chung
- School of Biological Sciences, University of Ulsan, Ulsan, 44610, Korea
| | - Eek-Hoon Jho
- Department of Life Science, University of Seoul, Seoul, Korea
| | - Hiderou Yoshida
- Department of Molecular Biochemistry, Graduate School of Life Science, University of Hyogo, 678-1297, Hyogo, Japan
| | - Kyoungmi Kim
- Department of Biomedical Sciences and Department of Physiology, Korea University College of Medicine, 02841, Seoul, Korea
| | - Chan Young Park
- Department of Biological Sciences, School of Life Sciences, Ulsan National Institute of Science and Technology, Ulsan, 44919, Korea
| | - Myung-Shik Lee
- Department of Integrated Biomedical Science & Division of Endocrinology, Department of Internal Medicine, SIMS (Soonchunhyang Institute of Medi-bio Science) & Soonchunhyang University Hospital, Soonchunhyang University, 31151, Cheonan, Korea
| | - Sung Hoon Back
- School of Biological Sciences, University of Ulsan, Ulsan, 44610, Korea
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Ferret L, Alvarez-Valadez K, Rivière J, Muller A, Bohálová N, Yu L, Guittat L, Brázda V, Kroemer G, Mergny JL, Djavaheri-Mergny M. G-quadruplex ligands as potent regulators of lysosomes. Autophagy 2023; 19:1901-1915. [PMID: 36740766 PMCID: PMC10283436 DOI: 10.1080/15548627.2023.2170071] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 12/03/2022] [Accepted: 12/05/2022] [Indexed: 02/07/2023] Open
Abstract
Guanine-quadruplex structures (G4) are unusual nucleic acid conformations formed by guanine-rich DNA and RNA sequences and known to control gene expression mechanisms, from transcription to protein synthesis. So far, a number of molecules that recognize G4 have been developed for potential therapeutic applications in human pathologies, including cancer and infectious diseases. These molecules are called G4 ligands. When the biological effects of G4 ligands are studied, the analysis is often limited to nucleic acid targets. However, recent evidence indicates that G4 ligands may target other cellular components and compartments such as lysosomes and mitochondria. Here, we summarize our current knowledge of the regulation of lysosome by G4 ligands, underlying their potential functional impact on lysosome biology and autophagic flux, as well as on the transcriptional regulation of lysosomal genes. We outline the consequences of these effects on cell fate decisions and we systematically analyzed G4-prone sequences within the promoter of 435 lysosome-related genes. Finally, we propose some hypotheses about the mechanisms involved in the regulation of lysosomes by G4 ligands.
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Affiliation(s)
- Lucille Ferret
- Centre de Recherche des Cordeliers, INSERM UMRS 1138, Sorbonne Université, Université Paris Cité, Equipe labellisée par la Ligue contre le Cancer, Institut universitaire de France, Paris, France
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
| | - Karla Alvarez-Valadez
- Centre de Recherche des Cordeliers, INSERM UMRS 1138, Sorbonne Université, Université Paris Cité, Equipe labellisée par la Ligue contre le Cancer, Institut universitaire de France, Paris, France
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
| | - Jennifer Rivière
- Department of Medicine III, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
| | - Alexandra Muller
- Centre de Recherche des Cordeliers, INSERM UMRS 1138, Sorbonne Université, Université Paris Cité, Equipe labellisée par la Ligue contre le Cancer, Institut universitaire de France, Paris, France
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
| | - Natalia Bohálová
- Department of Biophysical Chemistry and Molecular Oncology, Institute of Biophysics, The Czech Academy of Sciences, Brno, Czech Republic
| | - Luo Yu
- Laboratoire d’Optique et Biosciences, Ecole Polytechnique, CNRS, INSERM, Institut Polytechnique de Paris, 91128Palaiseau, France
- CNRS UMR9187, INSERM U1196, Université Paris-Saclay, Orsay, France
| | - Lionel Guittat
- Laboratoire d’Optique et Biosciences, Ecole Polytechnique, CNRS, INSERM, Institut Polytechnique de Paris, 91128Palaiseau, France
- UFR SMBH, Université Sorbonne Paris Nord, Bobigny, France
| | - Vaclav Brázda
- Department of Biophysical Chemistry and Molecular Oncology, Institute of Biophysics, The Czech Academy of Sciences, Brno, Czech Republic
| | - Guido Kroemer
- Centre de Recherche des Cordeliers, INSERM UMRS 1138, Sorbonne Université, Université Paris Cité, Equipe labellisée par la Ligue contre le Cancer, Institut universitaire de France, Paris, France
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
- Institut du Cancer Paris CARPEM, Department of Biology, Hôpital Européen Georges Pompidou, AP-HP, Paris, France
| | - Jean-Louis Mergny
- Department of Biophysical Chemistry and Molecular Oncology, Institute of Biophysics, The Czech Academy of Sciences, Brno, Czech Republic
- Laboratoire d’Optique et Biosciences, Ecole Polytechnique, CNRS, INSERM, Institut Polytechnique de Paris, 91128Palaiseau, France
| | - Mojgan Djavaheri-Mergny
- Centre de Recherche des Cordeliers, INSERM UMRS 1138, Sorbonne Université, Université Paris Cité, Equipe labellisée par la Ligue contre le Cancer, Institut universitaire de France, Paris, France
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
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Zhang C, Chen H, Rodriguez Y, Ma X, Swerdlow RH, Zhang J, Ding WX. A perspective on autophagy and transcription factor EB in Alcohol-Associated Alzheimer's disease. Biochem Pharmacol 2023; 213:115576. [PMID: 37127251 PMCID: PMC11009931 DOI: 10.1016/j.bcp.2023.115576] [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: 03/03/2023] [Revised: 04/21/2023] [Accepted: 04/24/2023] [Indexed: 05/03/2023]
Abstract
Alzheimer's disease (AD) is the most common form of progressive dementia and there is no truly efficacious treatment. Accumulating evidence indicates that impaired autophagic function for removal of damaged mitochondria and protein aggregates such as amyloid and tau protein aggregates may contribute to the pathogenesis of AD. Epidemiologic studies have implicated alcohol abuse in promoting AD, yet the underlying mechanisms are poorly understood. In this review, we discuss mechanisms of selective autophagy for mitochondria and protein aggregates and how these mechanisms are impaired by aging and alcohol consumption. We also discuss potential genetic and pharmacological approaches for targeting autophagy/mitophagy, as well as lysosomal and mitochondrial biogenesis, for the potential prevention and treatment of AD.
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Affiliation(s)
- Chen Zhang
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Hao Chen
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Yssa Rodriguez
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Xiaowen Ma
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Russell H Swerdlow
- Department of Neurology, The University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Jianhua Zhang
- Department of Pathology, Division of Molecular Cellular Pathology, University of Alabama at Birmingham, 901 19th street South, Birmingham, AL 35294, USA
| | - Wen-Xing Ding
- Department of Pharmacology, Toxicology and Therapeutics, The University of Kansas Medical Center, Kansas City, KS 66160, USA; Department of Internal Medicine, Division of Gastroenterology, Hepatology & Motility, The University of Kansas Medical Center, Kansas City, KS 66160, USA.
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39
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Zhou Y, Guan J, Meng G, Fan W, Ge C, Niu C, Cheng Y, Fu Y, Lu Y, Wei Y. The RagA GTPase protects young egg chambers in Drosophila. Cell Rep 2023; 42:112631. [PMID: 37302067 DOI: 10.1016/j.celrep.2023.112631] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 04/18/2023] [Accepted: 05/24/2023] [Indexed: 06/13/2023] Open
Abstract
The preservation of female fertility under unfavorable conditions is essential for animal reproduction. Inhibition of the target of rapamycin complex 1 (TORC1) is indispensable for Drosophila young egg chamber maintenance under nutrient starvation. Here, we show that knockdown of RagA results in young egg chamber death independent of TORC1 hyperactivity. RagA RNAi ovaries have autolysosomal acidification and degradation defects, which make the young egg chambers sensitive to autophagosome augmentation. Meanwhile, RagA RNAi ovaries have nuclear-localized Mitf, which promotes autophagic degradation and protects young egg chambers under stress. Interestingly, GDP-bound RagA rescues autolysosome defects, while GTP-bound RagA rescues Mitf nuclear localization in RagA RNAi young egg chambers. Moreover, Rag GTPase activity, rather than TORC1 activity, controls Mitf cellular localization in the Drosophila germ line. Our work suggests that RagA separately controls autolysosomal acidification and Mitf activity in the Drosophila young egg chambers.
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Affiliation(s)
- Ying Zhou
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou 225009, China; College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China
| | - Jianwen Guan
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou 225009, China; College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China
| | - Guoqiang Meng
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou 225009, China; College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China
| | - Weikang Fan
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou 225009, China; College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China
| | - Churui Ge
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou 225009, China; College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China
| | - Chunmei Niu
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou 225009, China; College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China
| | - Yang Cheng
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou 225009, China; College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China
| | - Yuanyuan Fu
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou 225009, China; College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China
| | - Yingying Lu
- College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China
| | - Youheng Wei
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou 225009, China; College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, China; Institute of Reproduction and Metabolism, Yangzhou University, Yangzhou 225009, China.
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40
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Jeong J, Lee J, Talaia G, Kim W, Song J, Hong J, Yoo K, Gonzalez D, Athonvarangkul D, Shin J, Dann P, Haberman A, Kim LK, Ferguson S, Choi J, Wysolmerski J. Intracellular Calcium links Milk Stasis to Lysosome Dependent Cell Death by Activating a TGFβ3/TFEB/STAT3 Pathway Early during Mammary Gland Involution. RESEARCH SQUARE 2023:rs.3.rs-3030763. [PMID: 37398309 PMCID: PMC10312953 DOI: 10.21203/rs.3.rs-3030763/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
Involution of the mammary gland after lactation is a dramatic example of coordinated cell death. Weaning causes distension of the alveolar structures due to the accumulation of milk, which, in turn, activates STAT3 and initiates a caspase-independent but lysosome-dependent cell death (LDCD) pathway. Although the importance of STAT3 and LDCD in early mammary involution is well established, it has not been entirely clear how milk stasis activates STAT3. In this report, we demonstrate that protein levels of the PMCA2 calcium pump are significantly downregulated within 2-4 hours of experimental milk stasis. Reductions in PMCA2 expression correlate with an increase in cytoplasmic calcium in vivo as measured by multiphoton intravital imaging of GCaMP6f fluorescence. These events occur concomitant with the appearance of nuclear pSTAT3 expression but prior to significant activation of LDCD or its previously implicated mediators such as LIF, IL6 and TGFβ3, all of which appear to be upregulated by increased intracellular calcium. We also observed that milk stasis, loss of PMCA2 expression and increased intracellular calcium levels activate TFEB, an important regulator of lysosome biogenesis. This is the result of increased TGFβ signaling and inhibition of cell cycle progression. Finally, we demonstrate that increased intracellular calcium activates STAT3 by inducing degradation of its negative regulator, SOCS3, a process which also appears to be mediated by TGFβ signaling. In summary, these data suggest that intracellular calcium serves as an important proximal biochemical signal linking milk stasis to STAT3 activation, increased lysosomal biogenesis, and lysosome-mediated cell death.
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Affiliation(s)
- Jaekwang Jeong
- Yale School of Medicine: Yale University School of Medicine
| | | | - Gabriel Talaia
- Yale School of Medicine: Yale University School of Medicine
| | | | | | | | | | - David Gonzalez
- Yale School of Medicine: Yale University School of Medicine
| | | | | | - Pamela Dann
- Yale School of Medicine: Yale University School of Medicine
| | - Ann Haberman
- Yale School of Medicine: Yale University School of Medicine
| | | | - Shawn Ferguson
- Yale School of Medicine: Yale University School of Medicine
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41
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Aufiero MA, Shlezinger N, Gjonbalaj M, Mills KA, Ballabio A, Hohl TM. Dectin-1/CARD9-induction of the TFEB and TFE3 gene network is dispensable for phagocyte anti- Aspergillus activity in the lung. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.06.13.544785. [PMID: 37398416 PMCID: PMC10312688 DOI: 10.1101/2023.06.13.544785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
Myeloid phagocytes of the respiratory immune system, such as neutrophils, monocytes, and alveolar macrophages, are essential for immunity to Aspergillus fumigatus, the most common etiologic agent of mold pneumonia worldwide. Following engulfment of A. fumigatus conidia, fusion of the phagosome with the lysosome, is a critical process for killing conidia. TFEB and TFE3 are transcription factors that regulate lysosomal biogenesis under stress and are activated by inflammatory stimuli in macrophages, but it is unknown whether TFEB and TFE3 contribute to anti-Aspergillus immunity during infection. We found that lung neutrophils express TFEB and TFE3, and their target genes were upregulated during A. fumigatus lung infection. Additionally, A. fumigatus infection induced nuclear accumulation of TFEB and TFE3 in macrophages in a process regulated by Dectin-1 and CARD9 signaling. Genetic deletion of Tfeb and Tfe3 impaired macrophage killing of A. fumigatus conidia. However, in a murine immune competent Aspergillus infection model with genetic deficiency of Tfeb and Tfe3 in hematopoietic cells, we surprisingly found that lung myeloid phagocytes had no defects in conidial phagocytosis or killing. Loss of TFEB and TFE3 did not impact murine survival or clearance of A. fumigatus from the lungs. Our findings indicate that myeloid phagocytes activate TFEB and TFE3 in response to A. fumigatus, and while this pathway promotes macrophage fungicidal activity in vitro, genetic loss can be functionally compensated at the portal of infection in the lung, resulting in no measurable defect in fungal control and host survival.
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Affiliation(s)
- Mariano A. Aufiero
- Louis V. Gerstner Jr. Graduate School of Biomedical Sciences, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Neta Shlezinger
- Koret School of Veterinary Medicine, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Mergim Gjonbalaj
- Infectious Disease Service, Department of Medicine, Memorial Hospital, New York, NY, USA
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Kathleen A.M. Mills
- Immunology and Microbial Pathogenesis Graduate Program, Weill Cornell Graduate School, New York, NY, USA
| | - Andrea Ballabio
- Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, Italy
- Medical Genetics Unit, Department of Medical and Translational Science, Federico II University, Naples, Italy
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
| | - Tobias M. Hohl
- Louis V. Gerstner Jr. Graduate School of Biomedical Sciences, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Infectious Disease Service, Department of Medicine, Memorial Hospital, New York, NY, USA
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Immunology and Microbial Pathogenesis Graduate Program, Weill Cornell Graduate School, New York, NY, USA
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42
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Ong AJS, Bladen CE, Tigani TA, Karamalakis AP, Evason KJ, Brown KK, Cox AG. The KEAP1-NRF2 pathway regulates TFEB/TFE3-dependent lysosomal biogenesis. Proc Natl Acad Sci U S A 2023; 120:e2217425120. [PMID: 37216554 PMCID: PMC10235939 DOI: 10.1073/pnas.2217425120] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 04/17/2023] [Indexed: 05/24/2023] Open
Abstract
The maintenance of redox and metabolic homeostasis is integral to embryonic development. Nuclear factor erythroid 2-related factor 2 (NRF2) is a stress-induced transcription factor that plays a central role in the regulation of redox balance and cellular metabolism. Under homeostatic conditions, NRF2 is repressed by Kelch-like ECH-associated protein 1 (KEAP1). Here, we demonstrate that Keap1 deficiency induces Nrf2 activation and postdevelopmental lethality. Loss of viability is preceded by severe liver abnormalities characterized by an accumulation of lysosomes. Mechanistically, we demonstrate that loss of Keap1 promotes aberrant activation of transcription factor EB (TFEB)/transcription factor binding to IGHM Enhancer 3 (TFE3)-dependent lysosomal biogenesis. Importantly, we find that NRF2-dependent regulation of lysosomal biogenesis is cell autonomous and evolutionarily conserved. These studies identify a role for the KEAP1-NRF2 pathway in the regulation of lysosomal biogenesis and suggest that maintenance of lysosomal homeostasis is required during embryonic development.
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Affiliation(s)
- Athena Jessica S. Ong
- Peter MacCallum Cancer Centre, Melbourne, VIC3000, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, VIC3010, Australia
| | - Cerys E. Bladen
- Peter MacCallum Cancer Centre, Melbourne, VIC3000, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, VIC3010, Australia
| | - Tara A. Tigani
- Peter MacCallum Cancer Centre, Melbourne, VIC3000, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, VIC3010, Australia
| | - Anthony P. Karamalakis
- Peter MacCallum Cancer Centre, Melbourne, VIC3000, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, VIC3010, Australia
| | - Kimberley J. Evason
- Division of Anatomic Pathology, Department of Pathology, University of Utah, Salt Lake City, UT84112
- Huntsman Cancer Institute, University of Utah, Salt Lake City, UT84112, USA
| | - Kristin K. Brown
- Peter MacCallum Cancer Centre, Melbourne, VIC3000, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, VIC3010, Australia
- Department of Biochemistry and Pharmacology, The University of Melbourne, Melbourne, VIC3010, Australia
| | - Andrew G. Cox
- Peter MacCallum Cancer Centre, Melbourne, VIC3000, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, VIC3010, Australia
- Department of Biochemistry and Pharmacology, The University of Melbourne, Melbourne, VIC3010, Australia
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43
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Wang Z, Yang C, Guan D, Li J, Zhang H. Cellular proteins act as surfactants to control the interfacial behavior and function of biological condensates. Dev Cell 2023:S1534-5807(23)00157-0. [PMID: 37098348 DOI: 10.1016/j.devcel.2023.04.004] [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: 10/24/2022] [Revised: 03/02/2023] [Accepted: 04/01/2023] [Indexed: 04/27/2023]
Abstract
Interfacial tension governs the behaviors and physiological functions of multiple biological condensates during diverse biological processes. Little is known about whether there are cellular surfactant factors that regulate the interfacial tension and functions of biological condensates within physiological environments. TFEB, a master transcription factor that controls expression of autophagic-lysosomal genes, assembles into transcriptional condensates to control the autophagy-lysosome pathway (ALP). Here, we show that interfacial tension modulates the transcriptional activity of TFEB condensates. MLX, MYC, and IPMK act as synergistic surfactants to decrease the interfacial tension and consequent DNA affinity of TFEB condensates. The interfacial tension of TFEB condensates is quantitatively correlated to their DNA affinity and subsequent ALP activity. The interfacial tension and DNA affinity of condensates formed by TAZ-TEAD4 are also regulated by the synergistic surfactant proteins RUNX3 and HOXA4. Our results indicate that the interfacial tension and functions of biological condensates can be controlled by cellular surfactant proteins in human cells.
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Affiliation(s)
- Zheng Wang
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, P.R. China.
| | - Chun Yang
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, P.R. China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Dongshi Guan
- State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, P.R. China
| | - Jiaqi Li
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Hong Zhang
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, P.R. China; College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, P.R. China
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Huang Y, Liang J, Fan Z. A review: Small organic molecule dual/multi-organelle-targeted fluorescent probes. Talanta 2023; 259:124529. [PMID: 37084606 DOI: 10.1016/j.talanta.2023.124529] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 03/21/2023] [Accepted: 04/03/2023] [Indexed: 04/23/2023]
Abstract
In recent years, the dual/multi-organelle-targeted fluorescent probe based on small organic molecules has good biocompatibility and can visualize the interaction between different organelles, which has attracted much attention. In addition, these probes can also be used to detect small molecules in the organelle environment, such as active sulfur species (RSS), reactive oxygen species (ROS), pH, viscosity and so on. However, the review of dual/multi-organelle-targeted fluorescent probe for small organic molecules lacks a systematic summary, which may hinder the development of this field. In this review, we will focus on the design strategies and bioimaging applications of dual/multi-organelle-targeted fluorescent probe, and classify them into six classes according to different organelles targeted. The first class probe targeted mitochondria and lysosome. The second class probe targeted endoplasmic reticulum and lysosome. The third class probe targeted mitochondria and lipid droplets. The fourth class probe targeted endoplasmic reticulum and lipid droplets. The fifth class probe targeted lysosome and lipid droplets. The sixth class multi-targeted probe. The mechanism of these probes targeting organelles and the visualization of the interaction between different organelles are emphasized, and the prospect and future development direction of this research field are prospected. This will provide a systematic idea for the development and functional research of dual/multi-organelle-targeted fluorescent probe, and promote its research in related physiological and pathological medicine field in the future.
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Affiliation(s)
- Yongfei Huang
- Key Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education & School of Chemistry and Materials Science of Shanxi Normal University, TaiYuan, 030032, China
| | - Junping Liang
- Key Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education & School of Chemistry and Materials Science of Shanxi Normal University, TaiYuan, 030032, China
| | - Zhefeng Fan
- Key Laboratory of Magnetic Molecules and Magnetic Information Materials of Ministry of Education & School of Chemistry and Materials Science of Shanxi Normal University, TaiYuan, 030032, China.
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Wang T, Qin Y, Ye Z, Jing DS, Fan GX, Liu MQ, Zhuo QF, Ji SR, Chen XM, Yu XJ, Xu XW, Li Z. A new glance at autophagolysosomal-dependent or -independent function of transcriptional factor EB in human cancer. Acta Pharmacol Sin 2023:10.1038/s41401-023-01078-7. [PMID: 37012494 PMCID: PMC10374590 DOI: 10.1038/s41401-023-01078-7] [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: 10/27/2022] [Accepted: 03/14/2023] [Indexed: 04/05/2023] Open
Abstract
Autophagy-lysosome system plays a variety of roles in human cancers. In addition to being implicated in metabolism, it is also involved in tumor immunity, remodeling the tumor microenvironment, vascular proliferation, and promoting tumor progression and metastasis. Transcriptional factor EB (TFEB) is a major regulator of the autophagy-lysosomal system. With the in-depth studies on TFEB, researchers have found that it promotes various cancer phenotypes by regulating the autophagolysosomal system, and even in an autophagy-independent way. In this review, we summarize the recent findings about TFEB in various types of cancer (melanoma, pancreatic ductal adenocarcinoma, renal cell carcinoma, colorectal cancer, breast cancer, prostate cancer, ovarian cancer and lung cancer), and shed some light on the mechanisms by which it may serve as a potential target for cancer treatment.
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Affiliation(s)
- Ting Wang
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital of Soochow University, Changzhou, 213000, China
| | - Yi Qin
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital of Soochow University, Changzhou, 213000, China
| | - Zeng Ye
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China
| | - De-Sheng Jing
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China
| | - Gui-Xiong Fan
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China
| | - Meng-Qi Liu
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China
| | - Qi-Feng Zhuo
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China
| | - Shun-Rong Ji
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China
| | - Xue-Min Chen
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital of Soochow University, Changzhou, 213000, China
| | - Xian-Jun Yu
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China.
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China.
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China.
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China.
| | - Xiao-Wu Xu
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China.
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China.
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China.
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China.
| | - Zheng Li
- Department of Pancreatic Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China.
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China.
- Shanghai Pancreatic Cancer Institute, Shanghai, 200032, China.
- Pancreatic Cancer Institute, Fudan University, Shanghai, 200032, China.
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Zhao X, Amevor FK, Cui Z, Wan Y, Xue X, Peng C, Li Y. Steatosis in metabolic diseases: A focus on lipolysis and lipophagy. Biomed Pharmacother 2023; 160:114311. [PMID: 36764133 DOI: 10.1016/j.biopha.2023.114311] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/23/2023] [Accepted: 01/26/2023] [Indexed: 02/11/2023] Open
Abstract
Fatty acids (FAs), as part of lipids, are involved in cell membrane composition, cellular energy storage, and cell signaling. FAs can also be toxic when their concentrations inside and/or outside the cell exceed physiological levels, which is called "lipotoxicity", and steatosis is a form of lipotoxity. To facilitate the storage of large quantities of FAs in cells, they undergo a process called lipolysis or lipophagy. This review focuses on the effects of lipolytic enzymes including cytoplasmic "neutral" lipolysis, lysosomal "acid" lipolysis, and lipophagy. Moreover, the impact of related lipolytic enzymes on lipid metabolism homeostasis and energy conservation, as well as their role in lipid-related metabolic diseases. In addition, we describe how they affect lipid metabolism homeostasis and energy conservation in lipid-related metabolic diseases with a focus on hepatic steatosis and cancer and the pathogenesis and therapeutic targets of AMPK/SIRTs/FOXOs, PI3K/Akt, PPARs/PGC-1α, MAPK/ERK1/2, TLR4/NF-κB, AMPK/mTOR/TFEB, Wnt/β-catenin through immune inflammation, oxidative stress and autophagy-related pathways. As well as the current application of lipolytic enzyme inhibitors (especially Monoacylglycerol lipase (MGL) inhibitors) to provide new strategies for future exploration of metabolic programming in metabolic diseases.
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Affiliation(s)
- Xingtao Zhao
- State Key Laboratory of Southwestern Chinese Medicine Resources, Ministry of Education, Chengdu 611137, China; School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Felix Kwame Amevor
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China.
| | - Zhifu Cui
- College of Animal Science and Technology, Southwest University, Chongqing 400715, China.
| | - Yan Wan
- State Key Laboratory of Southwestern Chinese Medicine Resources, Ministry of Education, Chengdu 611137, China; School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Xinyan Xue
- State Key Laboratory of Southwestern Chinese Medicine Resources, Ministry of Education, Chengdu 611137, China; School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Ministry of Education, Chengdu 611137, China; School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| | - Yunxia Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Ministry of Education, Chengdu 611137, China; School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
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Niu Z, Tang G, Wang X, Yang X, Zhao Y, Wang Y, Liu Q, Zhang F, Zhao Y, Ding X, Hao X. Trigonochinene E promotes lysosomal biogenesis and enhances autophagy via TFEB/TFE3 in human degenerative NP cells against oxidative stress. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 112:154720. [PMID: 36868108 DOI: 10.1016/j.phymed.2023.154720] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 02/01/2023] [Accepted: 02/15/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Macroautophagy (henceforth autophagy) is the major form of autophagy, which delivers intracellular cargo to lysosomes for degradation. Considerable research has revealed that the impairment of lysosomal biogenesis and autophagic flux exacerbates the development of autophagy-related diseases. Therefore, reparative medicines restoring lysosomal biogenesis and autophagic flux in cells may have therapeutic potential against the increasing prevalence of these diseases. PURPOSE The aim of the present study was thus to explore the effect of trigonochinene E (TE), an aromatic tetranorditerpene isolated from Trigonostemon flavidus, on lysosomal biogenesis and autophagy and to elucidate the potential underlying mechanism. METHODS Four human cell lines, HepG2, nucleus pulposus (NP), HeLa and HEK293 cells were applied in this study. The cytotoxicity of TE was evaluated by MTT assay. Lysosomal biogenesis and autophagic flux induced by 40 μM TE were analyzed using gene transfer techniques, western blotting, real-time PCR and confocal microscopy. Immunofluorescence, immunoblotting and pharmacological inhibitors/activators were applied to determine the changes in the protein expression levels in mTOR, PKC, PERK, and IRE1α signaling pathways. RESULTS Our results showed that TE promotes lysosomal biogenesis and autophagic flux by activating the transcription factors of lysosomes, transcription factor EB (TFEB) and transcription factor E3 (TFE3). Mechanistically, TE induces TFEB and TFE3 nuclear translocation through an mTOR/PKC/ROS-independent and endoplasmic reticulum (ER) stress-mediated pathway. The PERK and IRE1α branches of ER stress are crucial for TE-induced autophagy and lysosomal biogenesis. Whereas TE activated PERK, which mediated calcineurin dephosphorylation of TFEB/TFE3, IRE1α was activated and led to inactivation of STAT3, which further enhanced autophagy and lysosomal biogenesis. Functionally, knockdown of TFEB or TFE3 impairs TE-induced lysosomal biogenesis and autophagic flux. Furthermore, TE-induced autophagy protects NP cells from oxidative stress to ameliorate intervertebral disc degeneration (IVDD). CONCLUSIONS Here, our study showed that TE can induce TFEB/TFE3-dependent lysosomal biogenesis and autophagy via the PERK-calcineurin axis and IRE1α-STAT3 axis. Unlike other agents regulating lysosomal biogenesis and autophagy, TE showed limited cytotoxicity, thereby providing a new direction for therapeutic opportunities to use TE to treat diseases with impaired autophagy-lysosomal pathways, including IVDD.
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Affiliation(s)
- Zhenpeng Niu
- School of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou 550025, China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany Chinese Academy of Sciences, Kunming, Yunnan 650201, China; Research Unit of Chemical Biology of Natural Anti-Virus Products, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Guihua Tang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany Chinese Academy of Sciences, Kunming, Yunnan 650201, China
| | - Xuenan Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany Chinese Academy of Sciences, Kunming, Yunnan 650201, China; Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, China
| | - Xu Yang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany Chinese Academy of Sciences, Kunming, Yunnan 650201, China
| | - Yueqin Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany Chinese Academy of Sciences, Kunming, Yunnan 650201, China
| | - Yinyuan Wang
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany Chinese Academy of Sciences, Kunming, Yunnan 650201, China; School of Life Sciences, Yunnan University, Kunming, Yunnan 650091, China
| | - Qin Liu
- The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang, Guizhou 550014, China
| | - Fan Zhang
- Department of Orthopedics, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, China
| | - Yuhan Zhao
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany Chinese Academy of Sciences, Kunming, Yunnan 650201, China.
| | - Xiao Ding
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany Chinese Academy of Sciences, Kunming, Yunnan 650201, China; Research Unit of Chemical Biology of Natural Anti-Virus Products, Chinese Academy of Medical Sciences, Beijing 100730, China.
| | - Xiaojiang Hao
- School of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou 550025, China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany Chinese Academy of Sciences, Kunming, Yunnan 650201, China; Research Unit of Chemical Biology of Natural Anti-Virus Products, Chinese Academy of Medical Sciences, Beijing 100730, China; The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang, Guizhou 550014, China.
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Yu X, Tian AL, Wang P, Li J, Wu J, Li B, Liu Z, Liu S, Gao Z, Sun S, Sun S, Tu Y, Wu Q. Macrolide antibiotics activate the integrated stress response and promote tumor proliferation. Cell Stress 2023; 7:20-33. [PMID: 37021084 PMCID: PMC10069438 DOI: 10.15698/cst2023.04.278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 03/01/2023] [Accepted: 03/16/2023] [Indexed: 04/07/2023] Open
Abstract
Macrolide antibiotics are widely used antibacterial agents that are associated with autophagy inhibition. This study aimed to investigate the association between macrolide antibiotics and malignant tumors, as well as the effect on autophagy, reactive oxygen species (ROS) accumulation and integrated stress response (ISR). The meta-analysis indicated a modestly higher risk of cancer in macrolide antibiotic ever-users compared to non-users. Further experiments showed that macrolides block autophagic flux by inhibiting lysosomal acidification. Additionally, azithromycin, a representative macrolide antibiotic, induced the accumulation of ROS, and stimulated the ISR and the activation of transcription factor EB (TFEB) and TFE3 in a ROS-dependent manner. Finally, animal experiments confirmed that azithromycin promoted tumor progression in vivo, which could be receded by N-acetylcysteine, an inhibitor of ROS and ISR. Overall, this study reveals the potential role of macrolide antibiotics in malignant progression and highlights the need for further investigation into their effects.
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Affiliation(s)
- Xin Yu
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
- # These authors have contributed equally to this work and share first authorship
| | - Ai-Ling Tian
- Gustave Roussy Cancer Campus, Villejuif Cedex, France
- Université Paris-Saclay, Faculté de Médecine, Le Kremlin-Bicêtre, France
- Centre de Recherche des Cordeliers, INSERM U1138, Équipe Labellisée - Ligue Nationale contre le Cancer, Université Paris Cité, Sorbonne Université, Paris, France
- Metabolomics and Cell Biology Platforms, Gustave Roussy Cancer Campus, Villejuif, France
- # These authors have contributed equally to this work and share first authorship
| | - Ping Wang
- Medical College, Anhui University of Science and Technology, Huainan, AnHui, P. R. China
- # These authors have contributed equally to this work and share first authorship
| | - Juanjuan Li
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Juan Wu
- Department of Pathology, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Bei Li
- Department of Pathology, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Zhou Liu
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Siqing Liu
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Zhijie Gao
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Si Sun
- Department of Clinical Laboratory, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
| | - Shengrong Sun
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
- * Corresponding Author: Dr. Shengrong Sun, Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, 238 Ziyang Road, Wuhan 430060, Hubei Province, P. R. China; E-mail:
| | - Yi Tu
- Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, Wuhan, Hubei, P. R. China
- * Corresponding Author: Dr. Yi Tu, Department of Breast and Thyroid Surgery, Renmin Hospital of Wuhan University, 238 Ziyang Road, Wuhan 430060, Hubei Province, P. R. China; E-mail:
| | - Qi Wu
- Tongji University Cancer Center, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, P. R. China
- * Corresponding Author: Dr. Qi Wu, Tongji University Cancer Center, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, P. R. China; E-mail:
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Shillingford JM, Shayman JA. Functional TFEB activation characterizes multiple models of renal cystic disease and loss of polycystin-1. Am J Physiol Renal Physiol 2023; 324:F404-F422. [PMID: 36794754 PMCID: PMC10069964 DOI: 10.1152/ajprenal.00237.2022] [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: 09/14/2022] [Revised: 02/07/2023] [Accepted: 02/07/2023] [Indexed: 02/17/2023] Open
Abstract
Polycystic kidney disease is a disorder of renal epithelial growth and differentiation. Transcription factor EB (TFEB), a master regulator of lysosome biogenesis and function, was studied for a potential role in this disorder. Nuclear translocation and functional responses to TFEB activation were studied in three murine models of renal cystic disease, including knockouts of folliculin, folliculin interacting proteins 1 and 2, and polycystin-1 (Pkd1) as well as in mouse embryonic fibroblasts lacking Pkd1 and three-dimensional cultures of Madin-Darby canine kidney cells. Nuclear translocation of Tfeb characterized cystic but not noncystic renal tubular epithelia in all three murine models as both an early and sustained response to cyst formation. Epithelia expressed elevated levels of Tfeb-dependent gene products, including cathepsin B and glycoprotein nonmetastatic melanoma protein B. Nuclear Tfeb translocation was observed in mouse embryonic fibroblasts lacking Pkd1 but not wild-type fibroblasts. Pkd1 knockout fibroblasts were characterized by increased Tfeb-dependent transcripts, lysosomal biogenesis and repositioning, and increased autophagy. The growth of Madin-Darby canine kidney cell cysts was markedly increased following exposure to the TFEB agonist compound C1, and nuclear Tfeb translocation was observed in response to both forskolin and compound C1 treatment. Nuclear TFEB also characterized cystic epithelia but not noncystic tubular epithelia in human patients with autosomal dominant polycystic kidney disease. Noncanonical activation of TFEB is characteristic of cystic epithelia in multiple models of renal cystic disease including those associated with loss of Pkd1. Nuclear TFEB translocation is functionally active in these models and may be a component of a general pathway contributing to cystogenesis and growth.NEW & NOTEWORTHY Changes in epithelial cell metabolism are important in renal cyst development. The role of TFEB, a transcriptional regulator of lysosomal function, was explored in several models of renal cystic disease and human ADPKD tissue sections. Nuclear TFEB translocation was uniformly observed in cystic epithelia in each model of renal cystic disease examined. TFEB translocation was functionally active and associated with lysosomal biogenesis and perinuclear repositioning, increased TFEB-associated protein expression, and activation of autophagic flux. Compound C1, a TFEB agonist, promoted cyst growth in 3-D cultures of MDCK cells. Nuclear TFEB translocation is an underappreciated signaling pathway for cystogenesis that may represent a new paradigm for cystic kidney disease.
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Affiliation(s)
- Jonathan M Shillingford
- Department of Internal Medicine, University of Michigan Medical School, University of Michigan, Ann Arbor, Michigan, United States
| | - James A Shayman
- Department of Internal Medicine, University of Michigan Medical School, University of Michigan, Ann Arbor, Michigan, United States
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50
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Contreras PS, Tapia PJ, Jeong E, Ghosh S, Altan-Bonnet N, Puertollano R. Beta-coronaviruses exploit cellular stress responses by modulating TFEB and TFE3 activity. iScience 2023; 26:106169. [PMID: 36785787 PMCID: PMC9908431 DOI: 10.1016/j.isci.2023.106169] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 01/09/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
Beta-coronaviruses have emerged as a severe threat to global health. Undercovering the interplay between host and beta-coronaviruses is essential for understanding disease pathogenesis and developing efficient treatments. Here we report that the transcription factors TFEB and TFE3 translocate from the cytosol to the nucleus in response to beta-coronavirus infection by a mechanism that requires activation of calcineurin phosphatase. In the nucleus, TFEB and TFE3 bind to the promoter of multiple lysosomal and immune genes. Accordingly, MHV-induced upregulation of immune regulators is significantly decreased in TFEB/TFE3-depleted cells. Conversely, over-expression of either TFEB or TFE3 is sufficient to increase expression of several cytokines and chemokines. The reduced immune response observed in the absence of TFEB and TFE3 results in increased cellular survival of infected cells but also in reduced lysosomal exocytosis and decreased viral infectivity. These results suggest a central role of TFEB and TFE3 in cellular response to beta-coronavirus infection.
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Affiliation(s)
- Pablo S. Contreras
- Cell and Developmental Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Pablo J. Tapia
- Cell and Developmental Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Eutteum Jeong
- Cell and Developmental Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Sourish Ghosh
- Cell and Developmental Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Nihal Altan-Bonnet
- Cell and Developmental Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Rosa Puertollano
- Cell and Developmental Biology Center, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
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