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Croock D, Swart Y, Sanko TJ, Mavumengwana V, Möller M, Uren C, Petersen DC. Uncharted territory: the role of mitochondrial DNA variation in macrophage-mediated host susceptibility to tuberculosis. Tuberculosis (Edinb) 2025; 153:102650. [PMID: 40354681 DOI: 10.1016/j.tube.2025.102650] [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: 03/06/2025] [Revised: 05/06/2025] [Accepted: 05/07/2025] [Indexed: 05/14/2025]
Abstract
Mitochondria form an integral, yet frequently underappreciated, part of the immune response to Mycobacterium tuberculosis (M.tb), particularly within macrophages. Despite growing recognition for their role in infection and immunity, studies investigating how mitochondrial DNA (mtDNA) variation influences host susceptibility to tuberculosis (TB) are limited. Notably, there are no studies in African-based populations, although Africans possess unparalleled human genetic diversity, including the earliest diverged mitochondrial haplogroups, and a high TB burden. This underrepresentation limits the discovery of novel ancestry-specific genetic loci associated with TB. In this review article, we describe the unique characteristics of mtDNA, highlight key mitochondrial functions relevant to macrophage responses during M.tb infection, and summarise published studies that investigate the role of host mtDNA variation in TB susceptibility. We further advocate for the inclusion of African populations in future studies to identify novel TB susceptibility genetic risk loci and expand the current knowledgebase on host TB susceptibility.
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Affiliation(s)
- Dayna Croock
- South African Medical Research Council (SAMRC) Centre for Tuberculosis Research (CTR), Division of Molecular Biology and Human Genetics (MBHG), Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Yolandi Swart
- South African Medical Research Council (SAMRC) Centre for Tuberculosis Research (CTR), Division of Molecular Biology and Human Genetics (MBHG), Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Tomasz Janusz Sanko
- Centre for Epidemic Response and Innovation (CERI), School of Data Science and Computational Thinking, Stellenbosch University, Stellenbosch, South Africa
| | - Vuyo Mavumengwana
- South African Medical Research Council (SAMRC) Centre for Tuberculosis Research (CTR), Division of Molecular Biology and Human Genetics (MBHG), Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Marlo Möller
- South African Medical Research Council (SAMRC) Centre for Tuberculosis Research (CTR), Division of Molecular Biology and Human Genetics (MBHG), Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa; Centre for Bioinformatics and Computational Biology, Stellenbosch University, Cape Town, South Africa; Genomics for Health in Africa (GHA), Africa-Europe Cluster of Research Excellence (CoRE), South Africa; National Institute for Theoretical and Computational Sciences (NITheCS) South Africa, South Africa
| | - Caitlin Uren
- South African Medical Research Council (SAMRC) Centre for Tuberculosis Research (CTR), Division of Molecular Biology and Human Genetics (MBHG), Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa; Centre for Bioinformatics and Computational Biology, Stellenbosch University, Cape Town, South Africa; Genomics for Health in Africa (GHA), Africa-Europe Cluster of Research Excellence (CoRE), South Africa; National Institute for Theoretical and Computational Sciences (NITheCS) South Africa, South Africa
| | - Desiree C Petersen
- South African Medical Research Council (SAMRC) Centre for Tuberculosis Research (CTR), Division of Molecular Biology and Human Genetics (MBHG), Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa; Genomics for Health in Africa (GHA), Africa-Europe Cluster of Research Excellence (CoRE), South Africa.
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2
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Zhang S, Li M, Li Y, Yang S, Wang J, Ren X, Wang X, Bai L, Huang J, Geng Z, Han G, Fang Y, Su J. Mitochondria-targeted nanovesicles for ursodeoxycholic acid delivery to combat neurodegeneration by ameliorating mitochondrial dysfunction. J Nanobiotechnology 2025; 23:202. [PMID: 40069803 PMCID: PMC11895296 DOI: 10.1186/s12951-025-03258-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2024] [Accepted: 02/20/2025] [Indexed: 03/15/2025] Open
Abstract
Mitochondria are pivotal in sustaining oxidative balance and metabolic activity within neurons. It is well-established that mitochondrial dysfunction constitutes a fundamental pathogenic mechanism in neurodegeneration, especially in the context of Parkinson's disease (PD), this represents a promising target for therapeutic intervention. Ursodeoxycholic acid (UDCA), a clinical drug used for liver disease, possesses antioxidant and mitochondrial repair properties. Recently, it has gained attention as a potential therapeutic option for treating various neurodegenerative diseases. However, multiple barriers, including the blood-brain barrier (BBB) and cellular/mitochondrial membranes, significantly hinder the efficient delivery of therapeutic agents to the damaged neuronal mitochondria. Macrophage-derived nanovesicles (NVs), which can traverse the BBB in response to brain inflammation signals, have demonstrated promising tools for brain drug delivery. Nevertheless, natural nanovesicles inherently lack the ability to specifically target mitochondria. Herein, artificial NVs are loaded with UDCA and then functionalized with triphenylphosphonium (TPP) molecules, denoted as UDCA-NVs-TPP. These nanovesicles specifically accumulate in damaged neuronal mitochondria, reduce oxidative stress, and enhance ATP production by 42.62%, thereby alleviating neurotoxicity induced by 1-methyl-4-phenylpyridinium (MPP+). Furthermore, UDCA-loaded NVs modified with TPP successfully cross the BBB and accumulate in the striatum of PD mice. These nanoparticles significantly improve PD symptoms, as demonstrated by a 48.56% reduction in pole climb time, a 59.09% increase in hanging ability, and the restoration of tyrosine hydroxylase levels to normal, achieving remarkable therapeutic efficacy. Our work highlights the immense potential of these potent UDCA-loaded, mitochondria-targeting nanovesicles for efficient treatment of PD and other central neurodegenerative diseases.
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Affiliation(s)
- Shizheng Zhang
- Department of Neurology, Wenzhou Central Hospital, Wenzhou, 325000, China
- The Second Affiliated Hospital of Shanghai University, Wenzhou, 325000, China
- Panvascular Disease Management Center, Wenzhou Central Hospital, Wenzhou, 325000, China
| | - Mengmeng Li
- Institute of Translational Medicine, Shanghai University, Shanghai, 200444, China.
- Sanming Institute of Translational Medicine, Fujian, 365004, China.
| | - Yuan Li
- The Second Affiliated Hospital of Shanghai University, Wenzhou, 325000, China
- Institute of Translational Medicine, Shanghai University, Shanghai, 200444, China
- School of Medicine, Shanghai University, Shanghai, 200444, China
| | - Shike Yang
- Institute of Translational Medicine, Shanghai University, Shanghai, 200444, China
- School of Medicine, Shanghai University, Shanghai, 200444, China
- Department of Anesthesiology, Shanghai Zhongye Hospital, Shanghai, 200941, China
| | - Jian Wang
- Institute of Translational Medicine, Shanghai University, Shanghai, 200444, China
- School of Medicine, Shanghai University, Shanghai, 200444, China
| | - Xiaoxiang Ren
- Institute of Translational Medicine, Shanghai University, Shanghai, 200444, China
| | - Xiuhui Wang
- Institute of Translational Medicine, Shanghai University, Shanghai, 200444, China
| | - Long Bai
- Institute of Translational Medicine, Shanghai University, Shanghai, 200444, China
| | - Jianping Huang
- Department of Neurology, Wenzhou Central Hospital, Wenzhou, 325000, China
- The Second Affiliated Hospital of Shanghai University, Wenzhou, 325000, China
- Panvascular Disease Management Center, Wenzhou Central Hospital, Wenzhou, 325000, China
| | - Zhen Geng
- Institute of Translational Medicine, Shanghai University, Shanghai, 200444, China.
| | - Guosheng Han
- Department of Neurosurgery, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai, 200434, China.
| | - Yibin Fang
- Stroke Center, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai, 200434, China.
| | - Jiacan Su
- Institute of Translational Medicine, Shanghai University, Shanghai, 200444, China.
- Department of Orthopedics, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China.
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Aranda-Rivera AK, Amador-Martínez I, Aparicio-Trejo OE, León-Contreras JC, Hernández-Pando R, Saavedra E, García-Arroyo FE, Pedraza-Chaverri J, Sánchez-Lozada LG, Tapia E. Sulforaphane Restores Mitochondrial β-Oxidation and Reduces Renal Lipid Accumulation in a Model of Releasing Unilateral Ureteral Obstruction. Antioxidants (Basel) 2025; 14:288. [PMID: 40227243 PMCID: PMC11939561 DOI: 10.3390/antiox14030288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2025] [Revised: 02/11/2025] [Accepted: 02/26/2025] [Indexed: 04/15/2025] Open
Abstract
Obstructive nephropathy (ON), characterized by urine flow disruption, can induce chronic kidney disease (CKD). Although the release of the obstruction is performed as the primary intervention, renal pathology often persists and progresses. Accordingly, the murine model of releasing unilateral ureteral obstruction (RUUO) is valuable for investigating the molecular events underlying renal damage after obstruction release. Remarkably, after RUUO, disturbances such as oxidative stress, inflammation, lipid accumulation, and fibrosis continue to increase. Mitochondrial dysfunction contributes to fibrosis in the UUO model, but its role in RUUO remains unclear. Additionally, the impact of using antioxidants to restore mitochondrial function and prevent renal fibrosis in RUUO has not been determined. This study aimed to determine the therapeutic effect of pre-administering the antioxidant sulforaphane (SFN) in the RUUO model. SFN was administered 1 day before RUUO to evaluate mitochondrial biogenesis, fatty acids (FA) metabolism, bioenergetics, dynamics, and mitophagy/autophagy mechanisms in the kidney. Our data demonstrated that SFN enhanced mitochondrial biogenesis and reestablished mitochondrial oxygen consumption and β-oxidation. These effects collectively reduced lipid accumulation and normalized mitochondrial dynamics, mitophagy, and autophagy, thereby mitigating fibrosis after obstruction. Our findings suggest that SFN holds promise as a potential therapeutic agent in ON-induced CKD progression in RUUO and opens new avenues in studying antioxidant molecules to treat this disease.
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Affiliation(s)
- Ana Karina Aranda-Rivera
- Departamento de Biología, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, Mexico City 04510, Mexico
| | - Isabel Amador-Martínez
- Departamento de Biología, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, Mexico City 04510, Mexico
- Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyocán, Mexico City 04510, Mexico
| | - Omar Emiliano Aparicio-Trejo
- Departamento de Fisiopatología Cardio-Renal, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City 14080, Mexico
| | - Juan Carlos León-Contreras
- Departamento de Patología, Instituto Nacional de Ciencias Médicas y Nutrición “Salvador Zubirán”, Mexico City 14080, Mexico
| | - Rogelio Hernández-Pando
- Departamento de Patología, Instituto Nacional de Ciencias Médicas y Nutrición “Salvador Zubirán”, Mexico City 14080, Mexico
| | - Emma Saavedra
- Departamento de Bioquímica, Instituto Nacional de Cardiología “Ignacio Chávez”, Mexico City 14080, Mexico
| | - Fernando E. García-Arroyo
- Departamento de Fisiopatología Cardio-Renal, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City 14080, Mexico
| | - José Pedraza-Chaverri
- Departamento de Biología, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, Mexico City 04510, Mexico
| | - Laura Gabriela Sánchez-Lozada
- Departamento de Fisiopatología Cardio-Renal, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City 14080, Mexico
| | - Edilia Tapia
- Departamento de Fisiopatología Cardio-Renal, Instituto Nacional de Cardiología Ignacio Chávez, Mexico City 14080, Mexico
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Biró B, Gál Z, Nagy Z, Garcia JF, Batbold TA, Hoffmann OI. MANUDB: database and application to retrieve and visualize mammalian NUMTs. Database (Oxford) 2025; 2025:baaf009. [PMID: 39985319 PMCID: PMC11845865 DOI: 10.1093/database/baaf009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2024] [Revised: 01/13/2025] [Accepted: 02/03/2025] [Indexed: 02/24/2025]
Abstract
There is an ongoing genetic flow from the mitochondrial genome to the nuclear genome. The mitochondrial sequences that have integrated into the nuclear genome have been shown to be drivers of evolutionary processes and cancerous transformations. In addition to their fundamental biological importance, these sequences have significant consequences for genome assembly and phylogenetic and forensic analyses as well. Previously, our research group developed a computational pipeline that provides a uniform way of identifying these sequences in mammalian genomes. In this paper, we publish MANUDB-the MAmmalian NUclear mitochondrial sequences DataBase, which makes the results of our pipeline publicly accessible. With MANUDB one can retrieve and visualize mitochondrial genome fragments that have been integrated into the nuclear genome of mammalian species. Database URL: manudb.streamlit.app.
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Affiliation(s)
- Bálint Biró
- Group BM, Data Insights Team, _VOIS, Kerepesi str. 35, Budapest, 1087, Hungary
- Agribiotechnology and Precision Breeding for Food Security National Laboratory, Department of Animal Biotechnology, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Szent-Györgyi Albert str. 4, Gödöllő, 2100, Hungary
| | - Zoltán Gál
- Agribiotechnology and Precision Breeding for Food Security National Laboratory, Department of Animal Biotechnology, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Szent-Györgyi Albert str. 4, Gödöllő, 2100, Hungary
| | - Zsófia Nagy
- Agribiotechnology and Precision Breeding for Food Security National Laboratory, Department of Animal Biotechnology, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Szent-Györgyi Albert str. 4, Gödöllő, 2100, Hungary
| | - Juan Francisco Garcia
- Department of Plant Biotechnology, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Szent-Györgyi Albert str. 4, Gödöllő, 2100, Hungary
| | - Tsend-Ayush Batbold
- Department of Plant Biotechnology, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Szent-Györgyi Albert str. 4, Gödöllő, 2100, Hungary
| | - Orsolya Ivett Hoffmann
- Agribiotechnology and Precision Breeding for Food Security National Laboratory, Department of Animal Biotechnology, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Szent-Györgyi Albert str. 4, Gödöllő, 2100, Hungary
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Luo Z, Ding X, Yuan Y, Hou L. Rare complication of rheumatoid arthritis: Charcot Neuro-osteoarthropathy. BMC Musculoskelet Disord 2024; 25:340. [PMID: 38685038 PMCID: PMC11057095 DOI: 10.1186/s12891-024-07424-y] [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: 10/24/2023] [Accepted: 04/08/2024] [Indexed: 05/02/2024] Open
Abstract
BACKGROUND Rheumatoid arthritis (RA) is an autoimmune disease.However, there are few cases of Charcot Neuro-osteoarthropathy (CN) caused by rheumatoid diseases in clinical reports. It is not easy to pay attention to the diagnosis of CN in the complications of rheumatoid disease, which greatly increases the probability of misdiagnosis and missed diagnosis. This case reported a rare complication of rheumatoid arthritis, Charcot arthritis, and the molecular mechanism and diagnosis and treatment of CN caused by RA were systematically discussed. CASE PRESENTATION The patient, a 79-year-old woman, was hospitalized due to bilateral shoulder pain, limited activity for half a year, aggravated for 4 months to the hospital. During this period, the symptoms did not improve after treatment with acupuncture and Chinese medicine. The patient was previously diagnosed with rheumatoid arthritis for more than 3 years and intermittent irregular use of methylprednisolone and methotrexate for 2 years. She had a history of osteoporosis. PHYSICAL EXAMINATION symmetrical malformed swelling of the finger joints of both hands; Bilateral supraspinatus and deltoid muscle atrophy, tenderness at the acromion, and attachment of the long head tendon of the biceps brachii were observed. The left Dugas test and the right Dugas test were positive.Blood test: anti-cyclic citrullinated peptide antibody (A-CCP) 33.10U/ml (normal range: 0-5RU/ml); antinuclear antibody quantification (ANA) 47.40AU/ml (normal range: Negative or < 32); anti-double stranded DNA IgG antibody quantification (dsDNA) 31.00 IU/ml (normal range: 0-100 IU/ml); D-Dimer 6.43 µg/ml (normal range: 0-0.5 mg/L); erythrocyte sedimentation rate (ESR) was 27 mm/h (normal range: < 20 mm/60 min). C-reactive protein (CRP) 39.06 mg/L(0.068-8 mg/L).MRI 3.0 T enhancement of bilateral shoulder joints, cervical spine and thoracic spine showed: 1.Large bone destruction, cartilage injury, multiple effusion, synovitis, obvious on the right side. 2.Intervertebral disc degeneration, cervical 3/4, 4/5, 5/6, 6/7 disc herniation, with cervical 3/4 obvious, posterior central herniation; CONCLUSIONS: Rheumatoid arthritis complicated with Charcot's joint is rare. Clinically, patients with rheumatoid diseases should not ignore Charcot's joint complications because of rareness. Early blood inflammatory markers, neuro electrophysiology, and imaging MRI of rheumatoid CN are of great significance for the diagnosis of this mild or early neurovascular inflammation. Early diagnosis and treatment are helpful to prevent further joint injury. The clinical diagnosis, treatment, and molecular mechanism of osteolysis in RA and peripheral sensory nerve injury remain to be further revealed.
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Affiliation(s)
- Zhiyuan Luo
- The Eighth Clinical Medical College of Guangzhou University of Chinese Medicine, Foshan, Guangdong, China
| | - Xinxiang Ding
- The Eighth Clinical Medical College of Guangzhou University of Chinese Medicine, Foshan, Guangdong, China
| | - Yu Yuan
- The Eighth Clinical Medical College of Guangzhou University of Chinese Medicine, Foshan, Guangdong, China
| | - Lei Hou
- The Eighth Clinical Medical College of Guangzhou University of Chinese Medicine, Foshan, Guangdong, China.
- Foshan Hospital of Traditional Chinese Medicine, Foshan, Guangdong, China.
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Selvido DI, Koontongkaew S, Kokilakanit P, Sacharoen A, Korsuwannawong S, Utispan K. High nitric oxide-adapted head and neck cancer cell lines demonstrate altered autophagy and apoptosis. J Dent Sci 2024; 19:855-864. [PMID: 38618052 PMCID: PMC11010715 DOI: 10.1016/j.jds.2023.08.023] [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: 07/06/2023] [Revised: 08/25/2023] [Indexed: 04/16/2024] Open
Abstract
Background/purpose Autophagy is an intracellular degradative process occurring under stressful conditions. Nitric oxide (NO), a free radical, regulates autophagy and apoptosis in several cancers. However, the effect of head and neck squamous cell carcinoma (HNSCC) cell adaptation to high nitric oxide (HNO) on autophagy remains unknown. We investigated the autophagy and apoptotic changes in the HNO-adapted HNSCC cell lines. Materials and methods Isogenic primary HNSCC (HN18/HN30) and metastatic (HN17/HN31) cell lines were evaluated. The cells were induced with 1, 2, 3 and 4 mM DEA-NONOate, an NO donor, for 72 h and assessed for cell viability by MTT assay. "HNO-adapted cells" were defined when the cell viability in the treatment group was <10%. The surviving cells were re-treated with HNO to confirm their adaptation. HNO-adapted cells were quantified for apoptosis using flow cytometry. Autophagic structures (autophagosomes) and proteins (LC3A/B and LC3B-II) were investigated using transmission electron and confocal microscopy, respectively. Results HNO-adapted concentration for HN18, HN17, HN30 and HN31 cells was 3, 2, 4 and 4 mM, respectively. The HNO-adapted HN18 cells demonstrated a significantly increased apoptotic percentage, whereas no significant apoptotic change was detected in the HNO-adapted HN17, HN30 and HN31 cells compared with the parent cells. Autophagosomes were widely observed across the HNO-adapted cells. Moreover, LC3A/B and LC3B-II proteins were increased in all HNO-adapted cells. Conclusion Our results demonstrate that apoptosis and/or autophagy are increased during HNO adaptation in HNSCC cell lines.
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Affiliation(s)
| | | | - Paopanga Kokilakanit
- Faculty of Dentistry, Thammasat University (Rangsit Campus), Pathum Thani, Thailand
| | | | | | - Kusumawadee Utispan
- Faculty of Dentistry, Thammasat University (Rangsit Campus), Pathum Thani, Thailand
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Biró B, Gál Z, Fekete Z, Klecska E, Hoffmann OI. Mitochondrial genome plasticity of mammalian species. BMC Genomics 2024; 25:278. [PMID: 38486136 PMCID: PMC10941376 DOI: 10.1186/s12864-024-10201-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 03/08/2024] [Indexed: 03/17/2024] Open
Abstract
There is an ongoing process in which mitochondrial sequences are being integrated into the nuclear genome. The importance of these sequences has already been revealed in cancer biology, forensic, phylogenetic studies and in the evolution of the eukaryotic genetic information. Human and numerous model organisms' genomes were described from those sequences point of view. Furthermore, recent studies were published on the patterns of these nuclear localised mitochondrial sequences in different taxa.However, the results of the previously released studies are difficult to compare due to the lack of standardised methods and/or using few numbers of genomes. Therefore, in this paper our primary goal is to establish a uniform mining pipeline to explore these nuclear localised mitochondrial sequences.Our results show that the frequency of several repetitive elements is higher in the flanking regions of these sequences than expected. A machine learning model reveals that the flanking regions' repetitive elements and different structural characteristics are highly influential during the integration process.In this paper, we introduce a general mining pipeline for all mammalian genomes. The workflow is publicly available and is believed to serve as a validated baseline for future research in this field. We confirm the widespread opinion, on - as to our current knowledge - the largest dataset, that structural circumstances and events corresponding to repetitive elements are highly significant. An accurate model has also been trained to predict these sequences and their corresponding flanking regions.
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Affiliation(s)
- Bálint Biró
- Agribiotechnology and Precision Breeding for Food Security National Laboratory, Department of Animal Biotechnology, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Szent-Györgyi Albert str. 4, 2100, Gödöllő, Hungary.
- Group BM, Data Insights Team, _VOIS, Kerepesi str. 35, 1087, Budapest, Hungary.
| | - Zoltán Gál
- Agribiotechnology and Precision Breeding for Food Security National Laboratory, Department of Animal Biotechnology, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Szent-Györgyi Albert str. 4, 2100, Gödöllő, Hungary
| | - Zsófia Fekete
- Department of Genetics and Genomics, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Szent-Györgyi Albert str. 4, 2100, Gödöllő, Hungary
| | - Eszter Klecska
- FamiCord Group, Krio Institute, Kelemen László str, 1026, Budapest, Hungary
| | - Orsolya Ivett Hoffmann
- Agribiotechnology and Precision Breeding for Food Security National Laboratory, Department of Animal Biotechnology, Institute of Genetics and Biotechnology, Hungarian University of Agriculture and Life Sciences, Szent-Györgyi Albert str. 4, 2100, Gödöllő, Hungary.
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Zhang Y, Jia Z, Gao X, Zhao J, Zhang H. Polystyrene nanoparticles induced mammalian intestine damage caused by blockage of BNIP3/NIX-mediated mitophagy and gut microbiota alteration. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 907:168064. [PMID: 37884137 DOI: 10.1016/j.scitotenv.2023.168064] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Revised: 10/01/2023] [Accepted: 10/21/2023] [Indexed: 10/28/2023]
Abstract
Nanoplastics possess the capacity for cellular internalization, and consequentially disrupt mitochondrial functionality, precipitating aberrations in energy metabolism. Given this, the potential accumulation of nanoplastics in alimentary sources presents a considerable hazard to the mammalian gastrointestinal system. While mitophagy serves as a cytoprotective mechanism that sustains redox homeostasis through the targeted removal of compromised mitochondria, the regulatory implications of mitophagy in nanoplastic-induced toxicity remain an underexplored domain. In the present investigation, polystyrene (PS) nanoparticles, with a diameter of 80 nm employed as a representative model to assess their toxicological impact and propensity to instigate mitophagy in intestinal cells both in vitro and in vivo. Data indicated that PS nanoparticles elicited BNIP3/NIX-mediated mitophagy within the intestinal milieu. Strikingly, the impediment of this degradation process at elevated concentrations was correlated with exacerbated pathological ramifications. In vitro assays corroborated that high-dosage cellular uptake of PS nanoparticles obstructed the mitophagy pathway. Furthermore, treatment with PS nanoparticles engendered alterations in gut microbiota composition and manifested a proclivity to modulate nutritional metabolism. Collectively, these findings elucidate that oral exposure to PS nanoparticles culminates in the inhibition of mitophagy and induces perturbations in the intestinal microbiota. This contributes valuable insights into the toxicological repercussions of nanoplastics on mammalian gastrointestinal health.
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Affiliation(s)
- Yilun Zhang
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Key Laboratory of Food Nutrition and Safety of Shandong Normal University, College of Life Science, Shandong Normal University, Jinan, Shandong 250014, China
| | - Zhenzhen Jia
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Key Laboratory of Food Nutrition and Safety of Shandong Normal University, College of Life Science, Shandong Normal University, Jinan, Shandong 250014, China
| | - Xianlei Gao
- Department of Orthopedic Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China
| | - Juan Zhao
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Key Laboratory of Food Nutrition and Safety of Shandong Normal University, College of Life Science, Shandong Normal University, Jinan, Shandong 250014, China
| | - Hongyan Zhang
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Key Laboratory of Food Nutrition and Safety of Shandong Normal University, College of Life Science, Shandong Normal University, Jinan, Shandong 250014, China.
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Yin Z, Gong G, Wang X, Liu W, Wang B, Yin J. The dual role of autophagy in periprosthetic osteolysis. Front Cell Dev Biol 2023; 11:1123753. [PMID: 37035243 PMCID: PMC10080036 DOI: 10.3389/fcell.2023.1123753] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 03/16/2023] [Indexed: 04/11/2023] Open
Abstract
Periprosthetic osteolysis (PPO) induced by wear particles is an important cause of aseptic loosening after artificial joint replacement, among which the imbalance of osteogenesis and osteoclastic processes occupies a central position. The cells involved in PPO mainly include osteoclasts (macrophages), osteoblasts, osteocytes, and fibroblasts. RANKL/RANK/OGP axis is a typical way for osteolysis. Autophagy, a mode of regulatory cell death and maintenance of cellular homeostasis, has a dual role in PPO. Although autophagy is activated in various periprosthetic cells and regulates the release of inflammatory cytokines, osteoclast activation, and osteoblast differentiation, its beneficial or detrimental role remains controversy. In particular, differences in the temporal control and intensity of autophagy may have different effects. This article focuses on the role of autophagy in PPO, and expects the regulation of autophagy to become a powerful target for clinical treatment of PPO.
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Affiliation(s)
- Zhaoyang Yin
- Department of Orthopedics, The First People’s Hospital of Lianyungang, The Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang, China
| | - Ge Gong
- Department of Geriatrics, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Xiang Wang
- Department of Orthopedics, The Affiliated Jiangning Hospital with Nanjing Medical University, Nanjing, China
| | - Wei Liu
- Department of Orthopedics, The Affiliated Jiangning Hospital with Nanjing Medical University, Nanjing, China
| | - Bin Wang
- Department of Orthopedics, The Affiliated Jiangning Hospital with Nanjing Medical University, Nanjing, China
- *Correspondence: Jian Yin, ; Bin Wang,
| | - Jian Yin
- Department of Orthopedics, The Affiliated Jiangning Hospital with Nanjing Medical University, Nanjing, China
- *Correspondence: Jian Yin, ; Bin Wang,
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Xin L, Wen Y, Song J, Chen T, Zhai Q. Bone regeneration strategies based on organelle homeostasis of mesenchymal stem cells. Front Endocrinol (Lausanne) 2023; 14:1151691. [PMID: 37033227 PMCID: PMC10081449 DOI: 10.3389/fendo.2023.1151691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 03/06/2023] [Indexed: 04/11/2023] Open
Abstract
The organelle modulation has emerged as a crucial contributor to the organismal homeostasis. The mesenchymal stem cells (MSCs), with their putative functions in maintaining the regeneration ability of adult tissues, have been identified as a major driver to underlie skeletal health. Bone is a structural and endocrine organ, in which the organelle regulation on mesenchymal stem cells (MSCs) function has most been discovered recently. Furthermore, potential treatments to control bone regeneration are developing using organelle-targeted techniques based on manipulating MSCs osteogenesis. In this review, we summarize the most current understanding of organelle regulation on MSCs in bone homeostasis, and to outline mechanistic insights as well as organelle-targeted approaches for accelerated bone regeneration.
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Affiliation(s)
- Liangjing Xin
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Yao Wen
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Jinlin Song
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
- *Correspondence: Qiming Zhai, ; Tao Chen, ; Jinlin Song,
| | - Tao Chen
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
- *Correspondence: Qiming Zhai, ; Tao Chen, ; Jinlin Song,
| | - Qiming Zhai
- College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
- *Correspondence: Qiming Zhai, ; Tao Chen, ; Jinlin Song,
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11
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Bao F, Zhou L, Xiao J, Liu X. Mitolysosome exocytosis: a novel mitochondrial quality control pathway linked with parkinsonism-like symptoms. Biochem Soc Trans 2022; 50:1773-1783. [PMID: 36484629 DOI: 10.1042/bst20220726] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/14/2022] [Accepted: 11/25/2022] [Indexed: 06/17/2023]
Abstract
Quality control of mitochondria is essential for their homeostasis and function. Light chain 3 (LC3) associated autophagosomes-mediated mitophagy represents a canonical mitochondrial quality control pathway. Alternative quality control processes, such as mitochondrial-derived vesicles (MDVs), have been discovered, but the intact mitochondrial quality control remains unknown. We recently discovered a novel mitolysosome exocytosis mechanism for mitochondrial quality control in flunarizine (FNZ)-induced mitochondria clearance, where autophagosomes are not required, but rather mitochondria are engulfed directly by lysosomes, mediating mitochondrial secretion. As FNZ results in parkinsonism, we propose that excessive mitolysosome exocytosis is the cause.
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Affiliation(s)
- Feixiang Bao
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences; Guangzhou Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, China-New Zealand Joint Laboratory on Biomedicine and Health, CUHK-GIBH Joint Research Laboratory on Stem Cells and Regenerative Medicine, Institute for Stem Cell and Regeneration, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Lingyan Zhou
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences; Guangzhou Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, China-New Zealand Joint Laboratory on Biomedicine and Health, CUHK-GIBH Joint Research Laboratory on Stem Cells and Regenerative Medicine, Institute for Stem Cell and Regeneration, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Jiahui Xiao
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences; Guangzhou Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, China-New Zealand Joint Laboratory on Biomedicine and Health, CUHK-GIBH Joint Research Laboratory on Stem Cells and Regenerative Medicine, Institute for Stem Cell and Regeneration, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Xingguo Liu
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences; Guangzhou Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, China-New Zealand Joint Laboratory on Biomedicine and Health, CUHK-GIBH Joint Research Laboratory on Stem Cells and Regenerative Medicine, Institute for Stem Cell and Regeneration, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science & Innovation, Chinese Academy of Sciences, Hong Kong SAR, China
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12
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Stochastic survival of the densest and mitochondrial DNA clonal expansion in aging. Proc Natl Acad Sci U S A 2022; 119:e2122073119. [PMID: 36442091 PMCID: PMC9894218 DOI: 10.1073/pnas.2122073119] [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: 11/29/2022] Open
Abstract
The expansion of mitochondrial DNA molecules with deletions has been associated with aging, particularly in skeletal muscle fibers; its mechanism has remained unclear for three decades. Previous accounts have assigned a replicative advantage (RA) to mitochondrial DNA containing deletion mutations, but there is also evidence that cells can selectively remove defective mitochondrial DNA. Here we present a spatial model that, without an RA, but instead through a combination of enhanced density for mutants and noise, produces a wave of expanding mutations with speeds consistent with experimental data. A standard model based on RA yields waves that are too fast. We provide a formula that predicts that wave speed drops with copy number, consonant with experimental data. Crucially, our model yields traveling waves of mutants even if mutants are preferentially eliminated. Additionally, we predict that mutant loads observed in single-cell experiments can be produced by de novo mutation rates that are drastically lower than previously thought for neutral models. Given this exemplar of how spatial structure (multiple linked mtDNA populations), noise, and density affect muscle cell aging, we introduce the mechanism of stochastic survival of the densest (SSD), an alternative to RA, that may underpin other evolutionary phenomena.
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13
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Wang C, Zhu Y, Long H, Ou M, Zhao S. Relationship between blood manganese and bone mineral density and bone mineral content in adults: A population-based cross-sectional study. PLoS One 2022; 17:e0276551. [PMID: 36269752 PMCID: PMC9586363 DOI: 10.1371/journal.pone.0276551] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 10/09/2022] [Indexed: 11/17/2022] Open
Abstract
PURPOSE It has been reported that bone is the primary organ for manganese (Mn) accumulation, but the association between manganese and bone loss remains debatable. Therefore, this study aimed to evaluate the relationship between blood manganese and bone mineral density/bone mineral content (BMD/BMC) by using a representative sample from the National Health and Nutrition Examination Survey (NHANES). METHODS A total of 9732 subjects over the age of 18 with available data were enrolled in this study. The relationship between blood manganese and BMD/BMC of the total body, spine and femoral regions was evaluated using multivariate linear regression models. Subgroup analyses were also performed. RESULTS We observed a negative association between blood manganese and BMD/BMC in the femoral neck and total body in the fully adjusted model, especially femoral neck BMD in women aged 50-70 years. CONCLUSION In brief, people exposed to manganese should be aware of the increased risk of osteopenia or osteoporosis. Besides, due to the lack of available data, there are no definite values for the tolerable upper intake level (UL), average requirement (AR) and population reference intake (PRI) of manganese. The results of our study may provide some references for the establishment of AR, PRI and UL of Mn.
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Affiliation(s)
- Chao Wang
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yong Zhu
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Haitao Long
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Mingning Ou
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shushan Zhao
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
- * E-mail:
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14
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Gillson J, Abd El-Aziz YS, Leck LYW, Jansson PJ, Pavlakis N, Samra JS, Mittal A, Sahni S. Autophagy: A Key Player in Pancreatic Cancer Progression and a Potential Drug Target. Cancers (Basel) 2022; 14:3528. [PMID: 35884592 PMCID: PMC9315706 DOI: 10.3390/cancers14143528] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 07/10/2022] [Accepted: 07/11/2022] [Indexed: 01/18/2023] Open
Abstract
Pancreatic cancer is known to have the lowest survival outcomes among all major cancers, and unfortunately, this has only been marginally improved over last four decades. The innate characteristics of pancreatic cancer include an aggressive and fast-growing nature from powerful driver mutations, a highly defensive tumor microenvironment and the upregulation of advantageous survival pathways such as autophagy. Autophagy involves targeted degradation of proteins and organelles to provide a secondary source of cellular supplies to maintain cell growth. Elevated autophagic activity in pancreatic cancer is recognized as a major survival pathway as it provides a plethora of support for tumors by supplying vital resources, maintaining tumour survival under the stressful microenvironment and promoting other pathways involved in tumour progression and metastasis. The combination of these features is unique to pancreatic cancer and present significant resistance to chemotherapeutic strategies, thus, indicating a need for further investigation into therapies targeting this crucial pathway. This review will outline the autophagy pathway and its regulation, in addition to the genetic landscape and tumor microenvironment that contribute to pancreatic cancer severity. Moreover, this review will also discuss the mechanisms of novel therapeutic strategies that inhibit autophagy and how they could be used to suppress tumor progression.
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Affiliation(s)
- Josef Gillson
- Faculty of Medicine and Health, University of Sydney, Camperdown, Sydney, NSW 2050, Australia; (J.G.); (Y.S.A.E.-A.); (L.Y.W.L.); (P.J.J.); (N.P.); (J.S.S.); (A.M.)
- Bill Walsh Translational Cancer Research Laboratory, Kolling Institute of Medical Research, St Leonards, Sydney, NSW 2065, Australia
| | - Yomna S. Abd El-Aziz
- Faculty of Medicine and Health, University of Sydney, Camperdown, Sydney, NSW 2050, Australia; (J.G.); (Y.S.A.E.-A.); (L.Y.W.L.); (P.J.J.); (N.P.); (J.S.S.); (A.M.)
- Bill Walsh Translational Cancer Research Laboratory, Kolling Institute of Medical Research, St Leonards, Sydney, NSW 2065, Australia
- Oral Pathology Department, Faculty of Dentistry, Tanta University, Tanta 31527, Egypt
| | - Lionel Y. W. Leck
- Faculty of Medicine and Health, University of Sydney, Camperdown, Sydney, NSW 2050, Australia; (J.G.); (Y.S.A.E.-A.); (L.Y.W.L.); (P.J.J.); (N.P.); (J.S.S.); (A.M.)
- Bill Walsh Translational Cancer Research Laboratory, Kolling Institute of Medical Research, St Leonards, Sydney, NSW 2065, Australia
- Cancer Drug Resistance and Stem Cell Program, University of Sydney, Sydney, NSW 2006, Australia
| | - Patric J. Jansson
- Faculty of Medicine and Health, University of Sydney, Camperdown, Sydney, NSW 2050, Australia; (J.G.); (Y.S.A.E.-A.); (L.Y.W.L.); (P.J.J.); (N.P.); (J.S.S.); (A.M.)
- Bill Walsh Translational Cancer Research Laboratory, Kolling Institute of Medical Research, St Leonards, Sydney, NSW 2065, Australia
- Cancer Drug Resistance and Stem Cell Program, University of Sydney, Sydney, NSW 2006, Australia
| | - Nick Pavlakis
- Faculty of Medicine and Health, University of Sydney, Camperdown, Sydney, NSW 2050, Australia; (J.G.); (Y.S.A.E.-A.); (L.Y.W.L.); (P.J.J.); (N.P.); (J.S.S.); (A.M.)
- Bill Walsh Translational Cancer Research Laboratory, Kolling Institute of Medical Research, St Leonards, Sydney, NSW 2065, Australia
| | - Jaswinder S. Samra
- Faculty of Medicine and Health, University of Sydney, Camperdown, Sydney, NSW 2050, Australia; (J.G.); (Y.S.A.E.-A.); (L.Y.W.L.); (P.J.J.); (N.P.); (J.S.S.); (A.M.)
- Upper GI Surgical Unit, Royal North Shore Hospital and North Shore Private Hospital, St Leonards, Sydney, NSW 2065, Australia
- Australian Pancreatic Centre, St Leonards, Sydney, NSW 2065, Australia
| | - Anubhav Mittal
- Faculty of Medicine and Health, University of Sydney, Camperdown, Sydney, NSW 2050, Australia; (J.G.); (Y.S.A.E.-A.); (L.Y.W.L.); (P.J.J.); (N.P.); (J.S.S.); (A.M.)
- Upper GI Surgical Unit, Royal North Shore Hospital and North Shore Private Hospital, St Leonards, Sydney, NSW 2065, Australia
- Australian Pancreatic Centre, St Leonards, Sydney, NSW 2065, Australia
- School of Medicine, University of Notre Dame, Darlinghurst, Sydney, NSW 2010, Australia
| | - Sumit Sahni
- Faculty of Medicine and Health, University of Sydney, Camperdown, Sydney, NSW 2050, Australia; (J.G.); (Y.S.A.E.-A.); (L.Y.W.L.); (P.J.J.); (N.P.); (J.S.S.); (A.M.)
- Bill Walsh Translational Cancer Research Laboratory, Kolling Institute of Medical Research, St Leonards, Sydney, NSW 2065, Australia
- Australian Pancreatic Centre, St Leonards, Sydney, NSW 2065, Australia
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15
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Behera J, Ison J, Tyagi A, Mbalaviele G, Tyagi N. Mechanisms of autophagy and mitophagy in skeletal development, diseases and therapeutics. Life Sci 2022; 301:120595. [PMID: 35504330 DOI: 10.1016/j.lfs.2022.120595] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 01/12/2022] [Accepted: 04/26/2022] [Indexed: 12/20/2022]
Abstract
Autophagy is a highly evolutionarily conserved process in the eukaryotic cellular system by which dysfunctional organelles are selectively degraded through a series of processes of lysosomal activity and then returned to the cytoplasm for reuse. All cells require this process to maintain cellular homeostasis and promote cell survival during stress responses such as deprivation and hypoxia. Osteoblasts and osteoclasts are two cellular phenotypes in the bone that mediate bone homeostasis. However, an imbalance between osteoblastic bone formation and osteoclastic bone resorption contributes to the onset of bone diseases. Recent studies suggest that autophagy, mitophagy, and selective mitochondrial autophagy may play an essential role in regulating osteoblast differentiation and osteoclast maturation. Autophagic activity dysregulation alters the equilibrium between osteoblastic bone creation and osteoclastic bone resorption, allowing bone disorders like osteoporosis to develop more easily. The current review emphasizes the role of autophagy and mitophagy and their related molecular mechanisms in bone metabolic disorders. In the current review, we emphasize the role of autophagy and mitophagy as well as their related molecular mechanism in bone metabolic disorders. Furthermore, we will discuss autophagy as a target for the treatment of metabolic bone disease and future application in therapeutic translational research.
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Affiliation(s)
- Jyotirmaya Behera
- Bone Biology Laboratory, Department of Physiology, School of Medicine, University of Louisville, Louisville, KY 40202, USA
| | - Jessica Ison
- Bone Biology Laboratory, Department of Physiology, School of Medicine, University of Louisville, Louisville, KY 40202, USA
| | - Ashish Tyagi
- Bone Biology Laboratory, Department of Physiology, School of Medicine, University of Louisville, Louisville, KY 40202, USA
| | - Gabriel Mbalaviele
- Division of Bone and Mineral Diseases, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Neetu Tyagi
- Bone Biology Laboratory, Department of Physiology, School of Medicine, University of Louisville, Louisville, KY 40202, USA.
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16
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Bao F, Zhou L, Zhou R, Huang Q, Chen J, Zeng S, Wu Y, Yang L, Qian S, Wang M, He X, Liang S, Qi J, Xiang G, Long Q, Guo J, Ying Z, Zhou Y, Zhao Q, Zhang J, Zhang D, Sun W, Gao M, Wu H, Zhao Y, Nie J, Li M, Chen Q, Chen J, Zhang X, Pan G, Zhang H, Li M, Tian M, Liu X. Mitolysosome exocytosis, a mitophagy-independent mitochondrial quality control in flunarizine-induced parkinsonism-like symptoms. SCIENCE ADVANCES 2022; 8:eabk2376. [PMID: 35417232 PMCID: PMC9007515 DOI: 10.1126/sciadv.abk2376] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Accepted: 02/23/2022] [Indexed: 05/20/2023]
Abstract
Mitochondrial quality control plays an important role in maintaining mitochondrial homeostasis and function. Disruption of mitochondrial quality control degrades brain function. We found that flunarizine (FNZ), a drug whose chronic use causes parkinsonism, led to a parkinsonism-like motor dysfunction in mice. FNZ induced mitochondrial dysfunction and decreased mitochondrial mass specifically in the brain. FNZ decreased mitochondrial content in both neurons and astrocytes, without affecting the number of nigral dopaminergic neurons. In human neural progenitor cells, FNZ also induced mitochondrial depletion. Mechanistically, independent of ATG5- or RAB9-mediated mitophagy, mitochondria were engulfed by lysosomes, followed by a vesicle-associated membrane protein 2- and syntaxin-4-dependent extracellular secretion. A genome-wide CRISPR knockout screen identified genes required for FNZ-induced mitochondrial elimination. These results reveal not only a previously unidentified lysosome-associated exocytosis process of mitochondrial quality control that may participate in the FNZ-induced parkinsonism but also a drug-based method for generating mitochondria-depleted mammal cells.
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Affiliation(s)
- Feixiang Bao
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, China-New Zealand Joint Laboratory on Biomedicine and Health, CUHK-GIBH Joint Research Laboratory on Stem Cells and Regenerative Medicine, Institute for Stem Cell and Regeneration, Guangzhou Institutes of Biomedicine and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Guangzhou, China
| | - Lingyan Zhou
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, China-New Zealand Joint Laboratory on Biomedicine and Health, CUHK-GIBH Joint Research Laboratory on Stem Cells and Regenerative Medicine, Institute for Stem Cell and Regeneration, Guangzhou Institutes of Biomedicine and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Guangzhou, China
| | - Rui Zhou
- Department of Nuclear Medicine and PET Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Qiaoying Huang
- Guangdong Provincial Key Laboratory of Brain Function and Disease, Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Junguo Chen
- Guangdong Provincial Key Laboratory of Brain Function and Disease, Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Sheng Zeng
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, China-New Zealand Joint Laboratory on Biomedicine and Health, CUHK-GIBH Joint Research Laboratory on Stem Cells and Regenerative Medicine, Institute for Stem Cell and Regeneration, Guangzhou Institutes of Biomedicine and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Guangzhou, China
| | - Yi Wu
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, China-New Zealand Joint Laboratory on Biomedicine and Health, CUHK-GIBH Joint Research Laboratory on Stem Cells and Regenerative Medicine, Institute for Stem Cell and Regeneration, Guangzhou Institutes of Biomedicine and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Guangzhou, China
| | - Liang Yang
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, China-New Zealand Joint Laboratory on Biomedicine and Health, CUHK-GIBH Joint Research Laboratory on Stem Cells and Regenerative Medicine, Institute for Stem Cell and Regeneration, Guangzhou Institutes of Biomedicine and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Guangzhou, China
| | - Shufang Qian
- Department of Nuclear Medicine and PET Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Mengfei Wang
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, China-New Zealand Joint Laboratory on Biomedicine and Health, CUHK-GIBH Joint Research Laboratory on Stem Cells and Regenerative Medicine, Institute for Stem Cell and Regeneration, Guangzhou Institutes of Biomedicine and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Guangzhou, China
| | - Xueying He
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, China-New Zealand Joint Laboratory on Biomedicine and Health, CUHK-GIBH Joint Research Laboratory on Stem Cells and Regenerative Medicine, Institute for Stem Cell and Regeneration, Guangzhou Institutes of Biomedicine and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Guangzhou, China
| | - Shan Liang
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, China-New Zealand Joint Laboratory on Biomedicine and Health, CUHK-GIBH Joint Research Laboratory on Stem Cells and Regenerative Medicine, Institute for Stem Cell and Regeneration, Guangzhou Institutes of Biomedicine and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Guangzhou, China
| | - Juntao Qi
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, China-New Zealand Joint Laboratory on Biomedicine and Health, CUHK-GIBH Joint Research Laboratory on Stem Cells and Regenerative Medicine, Institute for Stem Cell and Regeneration, Guangzhou Institutes of Biomedicine and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Guangzhou, China
| | - Ge Xiang
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, China-New Zealand Joint Laboratory on Biomedicine and Health, CUHK-GIBH Joint Research Laboratory on Stem Cells and Regenerative Medicine, Institute for Stem Cell and Regeneration, Guangzhou Institutes of Biomedicine and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Guangzhou, China
- GMU-GIBH Joint School of Life Sciences, Center of Reproductive Medicine, Third Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Qi Long
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, China-New Zealand Joint Laboratory on Biomedicine and Health, CUHK-GIBH Joint Research Laboratory on Stem Cells and Regenerative Medicine, Institute for Stem Cell and Regeneration, Guangzhou Institutes of Biomedicine and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Guangzhou, China
| | - Jingyi Guo
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, China-New Zealand Joint Laboratory on Biomedicine and Health, CUHK-GIBH Joint Research Laboratory on Stem Cells and Regenerative Medicine, Institute for Stem Cell and Regeneration, Guangzhou Institutes of Biomedicine and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Guangzhou, China
| | - Zhongfu Ying
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, China-New Zealand Joint Laboratory on Biomedicine and Health, CUHK-GIBH Joint Research Laboratory on Stem Cells and Regenerative Medicine, Institute for Stem Cell and Regeneration, Guangzhou Institutes of Biomedicine and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Guangzhou, China
- GMU-GIBH Joint School of Life Sciences, Center of Reproductive Medicine, Third Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Yanshuang Zhou
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, China-New Zealand Joint Laboratory on Biomedicine and Health, CUHK-GIBH Joint Research Laboratory on Stem Cells and Regenerative Medicine, Institute for Stem Cell and Regeneration, Guangzhou Institutes of Biomedicine and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Guangzhou, China
| | - Qiuge Zhao
- The First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Jiwei Zhang
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, Henan, China
| | - Di Zhang
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, China-New Zealand Joint Laboratory on Biomedicine and Health, CUHK-GIBH Joint Research Laboratory on Stem Cells and Regenerative Medicine, Institute for Stem Cell and Regeneration, Guangzhou Institutes of Biomedicine and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Guangzhou, China
| | - Wei Sun
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, China-New Zealand Joint Laboratory on Biomedicine and Health, CUHK-GIBH Joint Research Laboratory on Stem Cells and Regenerative Medicine, Institute for Stem Cell and Regeneration, Guangzhou Institutes of Biomedicine and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Guangzhou, China
| | - Mi Gao
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, China-New Zealand Joint Laboratory on Biomedicine and Health, CUHK-GIBH Joint Research Laboratory on Stem Cells and Regenerative Medicine, Institute for Stem Cell and Regeneration, Guangzhou Institutes of Biomedicine and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Guangzhou, China
| | - Hao Wu
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, China-New Zealand Joint Laboratory on Biomedicine and Health, CUHK-GIBH Joint Research Laboratory on Stem Cells and Regenerative Medicine, Institute for Stem Cell and Regeneration, Guangzhou Institutes of Biomedicine and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Guangzhou, China
| | - Yifan Zhao
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, China-New Zealand Joint Laboratory on Biomedicine and Health, CUHK-GIBH Joint Research Laboratory on Stem Cells and Regenerative Medicine, Institute for Stem Cell and Regeneration, Guangzhou Institutes of Biomedicine and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Guangzhou, China
| | - Jinfu Nie
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, China-New Zealand Joint Laboratory on Biomedicine and Health, CUHK-GIBH Joint Research Laboratory on Stem Cells and Regenerative Medicine, Institute for Stem Cell and Regeneration, Guangzhou Institutes of Biomedicine and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Guangzhou, China
| | - Min Li
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, China
| | - Quan Chen
- College of Life Sciences, Nankai University, Tianjin, China
| | - Jiekai Chen
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, China-New Zealand Joint Laboratory on Biomedicine and Health, CUHK-GIBH Joint Research Laboratory on Stem Cells and Regenerative Medicine, Institute for Stem Cell and Regeneration, Guangzhou Institutes of Biomedicine and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Guangzhou, China
| | - Xiao Zhang
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, China-New Zealand Joint Laboratory on Biomedicine and Health, CUHK-GIBH Joint Research Laboratory on Stem Cells and Regenerative Medicine, Institute for Stem Cell and Regeneration, Guangzhou Institutes of Biomedicine and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Guangzhou, China
| | - Guangjin Pan
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, China-New Zealand Joint Laboratory on Biomedicine and Health, CUHK-GIBH Joint Research Laboratory on Stem Cells and Regenerative Medicine, Institute for Stem Cell and Regeneration, Guangzhou Institutes of Biomedicine and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Guangzhou, China
| | - Hong Zhang
- Department of Nuclear Medicine and PET Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Mingtao Li
- Guangdong Provincial Key Laboratory of Brain Function and Disease, Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Mei Tian
- Department of Nuclear Medicine and PET Center, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
- Corresponding author. (X.L.); (M.T.)
| | - Xingguo Liu
- CAS Key Laboratory of Regenerative Biology, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou Medical University, Guangzhou, China
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory), Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, China-New Zealand Joint Laboratory on Biomedicine and Health, CUHK-GIBH Joint Research Laboratory on Stem Cells and Regenerative Medicine, Institute for Stem Cell and Regeneration, Guangzhou Institutes of Biomedicine and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Guangzhou, China
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science and Innovation, Chinese Academy of Sciences, Hong Kong, SAR China
- Corresponding author. (X.L.); (M.T.)
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17
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Cuyler J, Murthy P, Spada NG, McGuire TF, Lotze MT, Xie XQ. Sequestsome-1/p62-targeted small molecules for pancreatic cancer therapy. Drug Discov Today 2022; 27:362-370. [PMID: 34592447 DOI: 10.1016/j.drudis.2021.09.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 08/24/2021] [Accepted: 09/22/2021] [Indexed: 12/27/2022]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is characterized by heightened autophagy and systemic immune dysfunction. Modest improvements in clinical outcomes have been demonstrated in completed clinical trials targeting autophagy with combination hydroxychloroquine (HCQ) and chemotherapy. Recent mechanistic insights into the role of autophagy-dependent immune evasion have prompted the need for more precise and druggable targets of autophagy inhibition. Sequestosome-1 (SQSTM-1) is a multidomain scaffold protein with well-established roles in autophagy, tumor necrosis factor alpha (TNFα)- and NF-κB-related signaling pathways. SQSTM1 overexpression is frequently observed in PDAC, correlating with clinical stage and outcome. Given the unique molecular structure of SQSTM-1 and its diverse activity, identifying means of limiting SQSTM-1-dependent autophagy to promote an effective immune response in PDAC could be a promising treatment strategy.
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Affiliation(s)
- Jacob Cuyler
- Department of Pharmaceutical Sciences and Computational Chemical Genomics Screening Center, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15261, USA; National Center of Excellence for Computational Drug Abuse Research, University of Pittsburgh, Pittsburgh, PA 15261, USA; Drug Discovery Institute, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Pranav Murthy
- Department of Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Neal G Spada
- Department of Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Terence F McGuire
- Department of Pharmaceutical Sciences and Computational Chemical Genomics Screening Center, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15261, USA; National Center of Excellence for Computational Drug Abuse Research, University of Pittsburgh, Pittsburgh, PA 15261, USA; Drug Discovery Institute, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - Michael T Lotze
- Department of Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15261, USA; Department of Immunology and Bioengineering, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15261, USA.
| | - Xiang-Qun Xie
- Department of Pharmaceutical Sciences and Computational Chemical Genomics Screening Center, School of Pharmacy, University of Pittsburgh, Pittsburgh, PA 15261, USA; National Center of Excellence for Computational Drug Abuse Research, University of Pittsburgh, Pittsburgh, PA 15261, USA; Drug Discovery Institute, University of Pittsburgh, Pittsburgh, PA 15261, USA; Department of Computational Biology and Structural Biology, School of Medicine, University of Pittsburgh, Pittsburgh, PA 15261, USA.
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18
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Addis DR, Aggarwal S, Lazrak A, Jilling T, Matalon S. Halogen-Induced Chemical Injury to the Mammalian Cardiopulmonary Systems. Physiology (Bethesda) 2021; 36:272-291. [PMID: 34431415 DOI: 10.1152/physiol.00004.2021] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The halogens chlorine (Cl2) and bromine (Br2) are highly reactive oxidizing elements with widespread industrial applications and a history of development and use as chemical weapons. When inhaled, depending on the dose and duration of exposure, they cause acute and chronic injury to both the lungs and systemic organs that may result in the development of chronic changes (such as fibrosis) and death from cardiopulmonary failure. A number of conditions, such as viral infections, coexposure to other toxic gases, and pregnancy increase susceptibility to halogens significantly. Herein we review their danger to public health, their mechanisms of action, and the development of pharmacological agents that when administered post-exposure decrease morbidity and mortality.
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Affiliation(s)
- Dylan R Addis
- Department of Anesthesiology and Perioperative Medicine, Division of Cardiothoracic Anesthesiology, University of Alabama at Birmingham, Birmingham, Alabama.,Comprehensive Cardiovascular Center, University of Alabama at Birmingham, Birmingham, Alabama
| | - Saurabh Aggarwal
- Department of Anesthesiology and Perioperative Medicine, Division of Molecular and Translational Biomedicine, University of Alabama at Birmingham, Birmingham, Alabama.,Pulmonary Injury and Repair Center, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Ahmed Lazrak
- Department of Anesthesiology and Perioperative Medicine, Division of Molecular and Translational Biomedicine, University of Alabama at Birmingham, Birmingham, Alabama.,Pulmonary Injury and Repair Center, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
| | - Tamas Jilling
- Pulmonary Injury and Repair Center, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama.,Department of Pediatrics, Division of Neonatology, Children's Hospital, University of Alabama at Birmingham, Birmingham, Alabama
| | - Sadis Matalon
- Department of Anesthesiology and Perioperative Medicine, Division of Molecular and Translational Biomedicine, University of Alabama at Birmingham, Birmingham, Alabama.,Pulmonary Injury and Repair Center, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
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19
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Guan R, Li Z, Dai X, Zou W, Yu X, Liu H, Chen Q, Teng W, Liu P, Liu X, Dong S. Electroacupuncture at GV20‑GB7 regulates mitophagy to protect against neurological deficits following intracerebral hemorrhage via inhibition of apoptosis. Mol Med Rep 2021; 24:492. [PMID: 33955500 PMCID: PMC8127033 DOI: 10.3892/mmr.2021.12131] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 02/24/2021] [Indexed: 01/07/2023] Open
Abstract
The acupuncture penetrating line of Baihui (GV20) to Qubin (GB7) spans the parietal, frontal and temporal lobes. The present study aimed to elucidate the mechanism by which electroacupuncture (EA) at GV20‑GB7 regulates mitophagy in intracerebral hemorrhage (ICH) and whether it serves a neuroprotective role. A whole blood‑induced ICH model was used. Mitophagy‑regulating proteins, including BCL/adenovirus E1B 19 kDa‑interacting protein 3 (BNIP3), PTEN‑induced putative kinase 1 (PINK1), Parkin and apoptosis‑associated proteins were detected by western blotting; autophagy following ICH was evaluated by immunofluorescent techniques; morphological characteristics of mitophagy were observed using transmission electron microscopy; and TUNEL assay was performed to determine the number of apoptotic cells. Immunohistochemistry was used to detect p53 expression. The protective role of EA (GV20‑GB7) via enhanced mitophagy and suppressed apoptosis in ICH was further confirmed by decreased modified neurological severity score. The results showed that EA (GV20‑GB7) treatment upregulated mitochondrial autophagy following ICH and inhibited apoptotic cell death. The mechanism underlying EA (GV20‑GB7) treatment may involve inhibition of p53, an overlapping protein of autophagy and apoptosis. EA (GV20‑GB7) treatment decreased neurobehavioral deficits following ICH but pretreatment with 3‑methyladenine counteracted the beneficial effects of EA (GV20‑GB7) treatment. In conclusion, EA (GV20‑GB7) improved recovery from ICH by regulating the balance between mitophagy and apoptosis.
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Affiliation(s)
- Ruiqiao Guan
- Department of Integrated Chinese and Western Medicine, Zhongshan Hospital, Fudan University, Shanghai 200032, P.R. China
- Department of Clinical Medicine, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150040, P.R. China
- The Third Department of Acupuncture and Moxibustion, First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150040, P.R. China
- Clinical Key Laboratory of Integrated Chinese and Western Medicine, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150040, P.R. China
- Department of Traditional Chinese Medicine, London South Bank University, London SE1 6RD, UK
- The Clinic of Traditional Chinese Medicine, London Confucius Institute of Traditional Chinese Medicine, London SE1 0AA, UK
| | - Zhihao Li
- Department of Acupuncture and Moxibustion, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Chinese Medicine, Shanghai 200437, P.R. China
| | - Xiaohong Dai
- Department of Clinical Medicine, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150040, P.R. China
- The Third Department of Acupuncture and Moxibustion, First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150040, P.R. China
| | - Wei Zou
- Department of Clinical Medicine, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150040, P.R. China
- The Third Department of Acupuncture and Moxibustion, First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150040, P.R. China
| | - Xueping Yu
- Department of Clinical Medicine, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150040, P.R. China
- The Third Department of Acupuncture and Moxibustion, First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150040, P.R. China
| | - Hao Liu
- Department of Acupuncture and Moxibustion, Tongde Hospital of Zhejiang Province, Hangzhou, Zhejiang 315099, P.R. China
| | - Qiuxin Chen
- Department of Clinical Medicine, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150040, P.R. China
- The Third Department of Acupuncture and Moxibustion, First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150040, P.R. China
- Clinical Key Laboratory of Integrated Chinese and Western Medicine, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150040, P.R. China
| | - Wei Teng
- Department of Clinical Medicine, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150040, P.R. China
- The Third Department of Acupuncture and Moxibustion, First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150040, P.R. China
| | - Peng Liu
- Department of Clinical Medicine, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150040, P.R. China
- The Third Department of Acupuncture and Moxibustion, First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150040, P.R. China
| | - Xiaoying Liu
- Department of Clinical Medicine, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150040, P.R. China
- The Third Department of Acupuncture and Moxibustion, First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150040, P.R. China
| | - Shanshan Dong
- Department of Clinical Medicine, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150040, P.R. China
- The Third Department of Acupuncture and Moxibustion, First Affiliated Hospital of Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150040, P.R. China
- Clinical Key Laboratory of Integrated Chinese and Western Medicine, Heilongjiang University of Chinese Medicine, Harbin, Heilongjiang 150040, P.R. China
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20
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Qin N, Xu G, Wang Y, Zhan X, Gao Y, Wang Z, Fu S, Shi W, Hou X, Wang C, Li R, Liu Y, Wang J, Zhao H, Xiao X, Bai Z. Bavachin enhances NLRP3 inflammasome activation induced by ATP or nigericin and causes idiosyncratic hepatotoxicity. Front Med 2021; 15:594-607. [PMID: 33909257 DOI: 10.1007/s11684-020-0809-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Accepted: 06/03/2020] [Indexed: 12/31/2022]
Abstract
Psoraleae Fructus (PF) is a well-known traditional herbal medicine in China, and it is widely used for osteoporosis, vitiligo, and other diseases in clinical settings. However, liver injury caused by PF and its preparations has been frequently reported in recent years. Our previous studies have demonstrated that PF could cause idiosyncratic drug-induced liver injury (IDILI), but the mechanism underlying its hepatotoxicity remains unclear. This paper reports that bavachin isolated from PF enhances the specific stimuli-induced activation of the NLRP3 inflammasome and leads to hepatotoxicity. Bavachin boosts the secretion of IL-1β and caspase-1 caused by ATP or nigericin but not those induced by poly(I:C), monosodium urate crystal, or intracellular lipopolysaccharide. Bavachin does not affect AIM2 or NLRC4 inflammasome activation. Mechanistically, bavachin specifically increases the production of nigericin-induced mitochondrial reactive oxygen species among the most important upstream events in the activation of the NLRP3 inflammasome. Bavachin increases the levels of aspartate transaminase and alanine aminotransferase in serum and hepatocyte injury accompanied by the secretion of IL-1β via a mouse model of lipopolysaccharide-mediated susceptibility to IDILI. These results suggest that bavachin specifically enhances the ATP- or nigericin-induced activation of the NLRP3 inflammasome. Bavachin also potentially contributes to PF-induced idiosyncratic hepatotoxicity. Moreover, bavachin and PF should be evaded among patients with diseases linked to the ATP- or nigericin-mediated activation of the NLRP3 inflammasome, which may be a dangerous factor for liver injury.
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Affiliation(s)
- Nan Qin
- China Military Institute of Chinese Materia, the Fifth Medical Centre, Chinese PLA General Hospital, Beijing, 100039, China.,Department of Pharmacy, Nantong Hospital of Traditional Chinese Medicine, Nantong, 226300, China
| | - Guang Xu
- China Military Institute of Chinese Materia, the Fifth Medical Centre, Chinese PLA General Hospital, Beijing, 100039, China
| | - Yan Wang
- China Military Institute of Chinese Materia, the Fifth Medical Centre, Chinese PLA General Hospital, Beijing, 100039, China.,School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China
| | - Xiaoyan Zhan
- China Military Institute of Chinese Materia, the Fifth Medical Centre, Chinese PLA General Hospital, Beijing, 100039, China
| | - Yuan Gao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Zhilei Wang
- China Military Institute of Chinese Materia, the Fifth Medical Centre, Chinese PLA General Hospital, Beijing, 100039, China
| | - Shubin Fu
- China Military Institute of Chinese Materia, the Fifth Medical Centre, Chinese PLA General Hospital, Beijing, 100039, China
| | - Wei Shi
- China Military Institute of Chinese Materia, the Fifth Medical Centre, Chinese PLA General Hospital, Beijing, 100039, China
| | - Xiaorong Hou
- China Military Institute of Chinese Materia, the Fifth Medical Centre, Chinese PLA General Hospital, Beijing, 100039, China
| | - Chunyu Wang
- China Military Institute of Chinese Materia, the Fifth Medical Centre, Chinese PLA General Hospital, Beijing, 100039, China
| | - Ruisheng Li
- Research Center for Clinical and Translational Medicine, the Fifth Medical Centre, Chinese PLA General Hospital, Beijing, 100039, China
| | - Yan Liu
- Research Center for Clinical and Translational Medicine, the Fifth Medical Centre, Chinese PLA General Hospital, Beijing, 100039, China
| | - Jiabo Wang
- China Military Institute of Chinese Materia, the Fifth Medical Centre, Chinese PLA General Hospital, Beijing, 100039, China
| | - Haiping Zhao
- School of Traditional Chinese Medicine, Jiangxi University of Traditional Chinese Medicine, Nanchang, 330004, China.
| | - Xiaohe Xiao
- China Military Institute of Chinese Materia, the Fifth Medical Centre, Chinese PLA General Hospital, Beijing, 100039, China. .,Integrative Medical Centre, the Fifth Medical Centre, Chinese PLA General Hospital, Beijing, 100039, China.
| | - Zhaofang Bai
- China Military Institute of Chinese Materia, the Fifth Medical Centre, Chinese PLA General Hospital, Beijing, 100039, China.
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21
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Adamcakova J, Mokra D. New Insights into Pathomechanisms and Treatment Possibilities for Lung Silicosis. Int J Mol Sci 2021; 22:ijms22084162. [PMID: 33920534 PMCID: PMC8072896 DOI: 10.3390/ijms22084162] [Citation(s) in RCA: 100] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/14/2021] [Accepted: 04/14/2021] [Indexed: 02/06/2023] Open
Abstract
Inhalation of silica particles is an environmental and occupational cause of silicosis, a type of pneumoconiosis. Development of the lung silicosis is a unique process in which the vicious cycle of ingestion of inhaled silica particles by alveolar macrophages and their release triggers inflammation, generation of nodular lesions, and irreversible fibrosis. The pathophysiology of silicosis is complex, and interactions between the pathomechanisms have not been completely understood. However, elucidation of silica-induced inflammation cascades and inflammation-fibrosis relations has uncovered several novel possibilities of therapeutic targeting. This article reviews new information on the pathophysiology of silicosis and points out several promising treatment approaches targeting silicosis-related pathways.
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22
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Kheirallah DAM, El-Samad LM, Abdel-Moneim AM. DNA damage and ovarian ultrastructural lesions induced by nickel oxide nano-particles in Blaps polycresta (Coleoptera: Tenebrionidae). THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 753:141743. [PMID: 32891989 DOI: 10.1016/j.scitotenv.2020.141743] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 07/28/2020] [Accepted: 08/15/2020] [Indexed: 06/11/2023]
Abstract
Nickel oxide nanoparticles (NiO-NPs) have extensively used in industrial and consumer products. The present study conducted to gain more knowledge about the safe use of NiO-NPs and also to understand their impact on the environment and biological systems. Herein, we examined the genotoxic and ultra-structural effects of a sublethal dose of NiO-NPs (0.03 mg/g) on the ovarian tissues of the ground beetle, Blaps polycresta. The mean diameter of NiO-NPs was 24.49 ± 3.88 nm, as obtained through transmission electron microscopy (TEM). In terms of DNA damage levels, the frequency of micronucleus (MN) formation was highly significant in the NiO-NPs treated group versus the controls. Besides, NiO-NPs treatment resulted in a significant increase in the tail length of comets. Further, electron microscopy revealed a progressive increase in chromatin condensation of the ovarian nurse and follicular cells, in addition to the accumulation of lysosomes and endo-lysosomes in their cytoplasm. In conclusion, NiO-NPs are capable of gaining access to the ovary of B. polycresta and causing DNA damage and a high degree of cellular toxicity in the ovarian cells. The present study highlights, for the first time, the adverse effects of these NPs to female gonads of insects and raised the concern of its genotoxic potential. It would be of interest to investigate NiO-NPs mediated intracellular ROS generation in future studies.
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23
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Wang S, Deng Z, Ma Y, Jin J, Qi F, Li S, Liu C, Lyu FJ, Zheng Q. The Role of Autophagy and Mitophagy in Bone Metabolic Disorders. Int J Biol Sci 2020; 16:2675-2691. [PMID: 32792864 PMCID: PMC7415419 DOI: 10.7150/ijbs.46627] [Citation(s) in RCA: 180] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Accepted: 07/12/2020] [Indexed: 12/15/2022] Open
Abstract
Bone metabolic disorders include osteolysis, osteoporosis, osteoarthritis and rheumatoid arthritis. Osteoblasts and osteoclasts are two major types of cells in bone constituting homeostasis. The imbalance between bone formation by osteoblasts and bone resorption by osteoclasts has been shown to have a direct contribution to the onset of these diseases. Recent evidence indicates that autophagy and mitophagy, the selective autophagy of mitochondria, may play a vital role in regulating the proliferation, differentiation and function of osteoblasts and osteoclasts. Several signaling pathways, including PINK1/Parkin, SIRT1, MAPK8/FOXO3, Beclin-1/BECN1, p62/SQSTM1, and mTOR pathways, have been implied in the regulation of autophagy and mitophagy in these cells. Here we review the current progress about the regulation of autophagy and mitophagy in osteoblasts and osteoclasts in these bone metabolic disorders, as well as the molecular signaling activated or deactivated during this process. Together, we hope to draw attention to the role of autophagy and mitophagy in bone metabolic disorders, and their potential as a new target for the treatment of bone metabolic diseases and the requirements of further mechanism studies.
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Affiliation(s)
- Shuai Wang
- Department of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 510080, China.,South China University of Technology-The University of Western Australia Joint Center for Regenerative Medicine Research, School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Zhantao Deng
- Department of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 510080, China
| | - Yuanchen Ma
- Department of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 510080, China
| | - Jiewen Jin
- Department of Endocrinology, The First Affiliated Hospital of Sun Yat-sen University
| | - Fangjie Qi
- Department of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 510080, China.,South China University of Technology-The University of Western Australia Joint Center for Regenerative Medicine Research, School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Shuxian Li
- Department of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 510080, China.,South China University of Technology-The University of Western Australia Joint Center for Regenerative Medicine Research, School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Chang Liu
- South China University of Technology-The University of Western Australia Joint Center for Regenerative Medicine Research, School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Feng-Juan Lyu
- South China University of Technology-The University of Western Australia Joint Center for Regenerative Medicine Research, School of Medicine, South China University of Technology, Guangzhou, 510006, China
| | - Qiujian Zheng
- Department of Orthopedics, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, 510080, China
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24
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Verma V, Kumar P, Gupta S, Yadav S, Dhanda RS, Thorlacius H, Yadav M. α-Hemolysin of uropathogenic E. coli regulates NLRP3 inflammasome activation and mitochondrial dysfunction in THP-1 macrophages. Sci Rep 2020; 10:12653. [PMID: 32724079 PMCID: PMC7387347 DOI: 10.1038/s41598-020-69501-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 07/07/2020] [Indexed: 12/16/2022] Open
Abstract
Hemolysin expressing UPEC strains have been associated with severe advanced kidney pathologies, such as cystitis and pyelonephritis, which are associated with an inflammatory response. Macrophages play an important role in regulating an inflammatory response during a urinary tract infection. We have studied the role of purified recombinant α-hemolysin in inducing inflammatory responses and cell death in macrophages. Acylation at lysine residues through HlyC is known to activate proHlyA into a fully functional pore-forming toxin, HlyA. It was observed that active α-hemolysin (HlyA) induced cleavage of caspase-1 leading to the maturation of IL-1β, while inactive α-hemolysin (proHlyA) failed to do so in THP-1 derived macrophages. HlyA also promotes deubiquitination, oligomerization, and activation of the NLRP3 inflammasome, which was found to be dependent on potassium efflux. We have also observed the co-localization of NLRP3 within mitochondria during HlyA stimulations. Moreover, blocking of potassium efflux improved the mitochondrial health in addition to a decreased inflammatory response. Our study demonstrates that HlyA stimulation caused perturbance in potassium homeostasis, which led to the mitochondrial dysfunction followed by an acute inflammatory response, resulting in cell death. However, the repletion of intracellular potassium stores could avoid HlyA induced macrophage cell death. The findings of this study will help to understand the mechanism of α-hemolysin induced inflammatory response and cell death.
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Affiliation(s)
- Vivek Verma
- Dr. B. R. Ambedkar Center for Biomedical Research, University of Delhi (North Campus), Delhi, 110007, India
| | - Parveen Kumar
- Department of Urology, University of Alabama At Birmingham, Hugh Kaul Genetics Building, Birmingham, AL, USA
| | - Surbhi Gupta
- Dr. B. R. Ambedkar Center for Biomedical Research, University of Delhi (North Campus), Delhi, 110007, India
| | - Sonal Yadav
- Dr. B. R. Ambedkar Center for Biomedical Research, University of Delhi (North Campus), Delhi, 110007, India
| | - Rakesh Singh Dhanda
- Stem Cell Laboratory, Longboat Explorers AB, SMiLE Incubator, Scheelevägen 2, Lund, Sweden
| | - Henrik Thorlacius
- Department of Clinical Sciences, Section of Surgery, Malmö, Skåne University Hospital, Lund University, Malmö, Sweden
| | - Manisha Yadav
- Dr. B. R. Ambedkar Center for Biomedical Research, University of Delhi (North Campus), Delhi, 110007, India.
- Department of Clinical Sciences, Section of Surgery, Malmö, Skåne University Hospital, Lund University, Malmö, Sweden.
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25
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Xu DD, Leong MML, Wong FL, Lam HM, Hoeven R. Photodynamic therapy on prostate cancer cells involve mitochondria membrane proteins. Photodiagnosis Photodyn Ther 2020; 31:101933. [PMID: 32717455 DOI: 10.1016/j.pdpdt.2020.101933] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 07/08/2020] [Accepted: 07/17/2020] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Photodynamic therapy for prostate cancer has emerged, however the evaluation of its mechanism of action has not yet been clarified. This study aims to explore the mechanism and significance of photodynamic therapy on prostate cancer in vitro. METHODS Cultured prostate cancer cells were divided into two groups: untreated and photodynamic therapy treatment. The protein of each group was extracted and analyzed by MALDI-TOF/MSMS method. The significantly expressed proteins were identified in the NCBI human protein database. The change of mitochondrial membrane permeability after photodynamic treatment was examined by transmission electron microscopy. RESULTS The total protein content and band distribution of photodynamic treatment group were similar to the control group. Two mitochondrial membrane proteins were down-regulated significantly. They are mitochondrial heat shock protein (HSP60) (Entrez Gene ID: 31542947, PI 5.7, MW: 61016.4, Protein Score: 354, Protein Score C.I.%:100), and voltage-dependent anion channel (VDAC) (Entrez Gene ID: 340201, PI 7.49, MW: 31574.6, Protein Score: 178, Protein Score C.I.%:100). Transmission electron microscopy showed the loss of integrity of mitochondrial membranes. CONCLUSIONS Photodynamic therapy changes mitochondrial membrane permeability, leading to the eventual death of cancer cells. The regulation of proteins related to mitochondrial membrane permeability may become an indicator of the efficacy of photodynamic therapy.
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Affiliation(s)
- Dan Dan Xu
- Shandong University of Traditional Chinese Medicine, Jinan, China.
| | - Merrin Man Long Leong
- Division of Infectious Disease, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA; Department of Microbiology, Harvard Medical School, Boston, MA, 02115, USA
| | - Fuk-Ling Wong
- School of Life Science, The Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - Hon Ming Lam
- School of Life Science, The Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - Robin Hoeven
- Manchester Institute of Biotechnology, Faculty of Science and Engineering, The University of Manchester, Manchester, United Kingdom.
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26
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Kong H, Jiang CY, Hu L, Teng P, Zhang Y, Pan XX, Sun XD, Liu WT. Morphine induces dysfunction of PINK1/Parkin-mediated mitophagy in spinal cord neurons implying involvement in antinociceptive tolerance. J Mol Cell Biol 2020; 11:1056-1068. [PMID: 30698724 PMCID: PMC7261486 DOI: 10.1093/jmcb/mjz002] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 07/01/2018] [Accepted: 01/28/2019] [Indexed: 01/15/2023] Open
Abstract
The development of opioid-induced analgesic tolerance is a clinical challenge in long-term use for managing chronic pain. The mechanisms of morphine tolerance are poorly understood. Mitochondria-derived reactive oxygen species (ROS) is a crucial signal inducing analgesic tolerance and pain. Chronic administration of morphine leads to robust ROS production and accumulation of damaged mitochondria, which are immediately removed by mitophagy. Here, we show that morphine inhibits mitochondria damage-induced accumulation of PTEN-induced putative kinase 1 (PINK1) in neurons. It interrupts the recruitment of Parkin to the impaired mitochondria and inhibits the ubiquitination of mitochondrial proteins catalyzed by Parkin. Consequently, morphine suppresses the recognition of autophagosomes to the damaged mitochondria mediated by LC3 and sequestosome-1 (SQSTM1/p62). Thus, morphine inhibits autophagy flux and leads to the accumulation of SQSTM1/p62. Finally, the impaired mitochondria cannot be delivered to lysosomes for degradation and ultimately induces robust ROS production and morphine tolerance. Our findings suggest that the dysfunction of mitophagy is involved in morphine tolerance. The deficiency of PINK1/Parkin-mediated clearance of damaged mitochondria is crucial for the generation of excessive ROS and important to the development of analgesic tolerance. These findings suggest that the compounds capable of stabilizing PINK1 or restoring mitophagy may be utilized to prevent or reduce opioid tolerance during chronic pain management.
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Affiliation(s)
- Hong Kong
- Neuroprotective Drug Discovery Key Laboratory of Nanjing Medical University, Department of Pharmacology, Nanjing Medical University, Nanjing, China
| | - Chun-Yi Jiang
- Neuroprotective Drug Discovery Key Laboratory of Nanjing Medical University, Department of Pharmacology, Nanjing Medical University, Nanjing, China
| | - Liang Hu
- Neuroprotective Drug Discovery Key Laboratory of Nanjing Medical University, Department of Pharmacology, Nanjing Medical University, Nanjing, China
| | - Peng Teng
- Neuroprotective Drug Discovery Key Laboratory of Nanjing Medical University, Department of Pharmacology, Nanjing Medical University, Nanjing, China
| | - Yan Zhang
- Neuroprotective Drug Discovery Key Laboratory of Nanjing Medical University, Department of Pharmacology, Nanjing Medical University, Nanjing, China.,Research Division of Pharmacology, China Pharmaceutical University, Nanjing, China
| | - Xiu-Xiu Pan
- Neuroprotective Drug Discovery Key Laboratory of Nanjing Medical University, Department of Pharmacology, Nanjing Medical University, Nanjing, China
| | - Xiao-Di Sun
- Neuroprotective Drug Discovery Key Laboratory of Nanjing Medical University, Department of Pharmacology, Nanjing Medical University, Nanjing, China.,Department of Anesthesiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Wen-Tao Liu
- Neuroprotective Drug Discovery Key Laboratory of Nanjing Medical University, Department of Pharmacology, Nanjing Medical University, Nanjing, China.,Department of Pharmacy, Sir Run Run Shaw Hospital Affiliated to Nanjing Medical University, Nanjing, China
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27
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Aoki S, Shimizu K, Ito K. Autophagy-dependent mitochondrial function regulates osteoclast differentiation and maturation. Biochem Biophys Res Commun 2020; 527:874-880. [PMID: 32430180 DOI: 10.1016/j.bbrc.2020.04.155] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 04/29/2020] [Accepted: 04/30/2020] [Indexed: 01/07/2023]
Abstract
Bone homeostasis is maintained by bone remodeling, which involves continuous bone resorption by osteoclasts and bone formation by osteoblasts. Dysregulation of bone turnover, caused by osteoclast overactivation, causes destructive bone diseases. However, the mechanisms underlying the maintenance of osteoclast differentiation and activation are unclear. Herein, we examined the role of autophagy in the maintenance of osteoclast differentiation and maturation. We used in vitro and in vivo assays to evaluate relationships between mitochondrial activity and autophagy during osteoclast differentiation and maturation. Our results indicate that autophagy was enhanced during osteoclast differentiation and maturation, and autophagic activity was positively correlated with osteoclast activity and survival. Maintenance of mitochondrial function, which is critical during osteoclast differentiation and maturation, was controlled by autophagy. Continuous exposure of osteoclasts to glucocorticoids upregulated autophagic processes. Treatment with the autophagic inhibitor chloroquine suppressed prolonged survival of activated osteoclasts and attenuated excessive osteoclast activity. Our study shows that autophagy-dependent mitochondrial function plays an important role in osteoclast differentiation and maturation. Elucidating the mechanisms regulating autophagic activity in osteoclasts, and developing bone-tissue-specific inhibitors of autophagy, will lead to improved understanding of the pathologies involved in destructive bone diseases.
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Affiliation(s)
- Shigeki Aoki
- Laboratory of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Chiba University, Inohana 1-8-1, Chuo-ku, Chiba-city, Chiba, 260-8675, Japan.
| | - Kengo Shimizu
- Laboratory of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Chiba University, Inohana 1-8-1, Chuo-ku, Chiba-city, Chiba, 260-8675, Japan
| | - Kousei Ito
- Laboratory of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Chiba University, Inohana 1-8-1, Chuo-ku, Chiba-city, Chiba, 260-8675, Japan
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28
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Rao G, Murphy B, Dey A, Dhar Dwivedi SK, Zhang Y, Roy RV, Chakraborty P, Bhattacharya R, Mukherjee P. Cystathionine beta synthase regulates mitochondrial dynamics and function in endothelial cells. FASEB J 2020; 34:9372-9392. [PMID: 32463541 PMCID: PMC7675787 DOI: 10.1096/fj.202000173r] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Revised: 04/19/2020] [Accepted: 04/30/2020] [Indexed: 12/12/2022]
Abstract
Mutations in the human cystathionine beta synthase (CBS) gene are known to cause endothelial dysfunction responsible for cardiovascular and neurovascular diseases. CBS is the predominant hydrogen sulfide (H2 S)-producing enzyme in endothelial cells (ECs). Recently, H2 S was shown to attenuate ROS and improve mitochondrial function. Mitochondria are metabolic organelles that actively transform their ultrastructure to mediate their function. Therefore, we questioned whether perturbation of CBS/H2 S activity could drive mitochondrial dysfunction via mitochondrial dynamics in ECs. Here we demonstrate that silencing CBS induces mitochondria fragmentation, attenuates efficient oxidative phosphorylation, and decreases EC function. Mechanistically, CBS silencing significantly elevates ROS production, thereby leading to reduced mitofusin 2 (MFN2) expression, decouple endoplasmic reticulum-mitochondria contacts, increased mitochondria fission, enhanced receptor-mediated mitophagy, and increased EC death. These defects were significantly rescued by the treatment of H2 S donors. Taken together our data highlights a novel signaling axis that mechanistically links CBS with mitochondrial function and ER-mitochondrial tethering and could be considered as a new therapeutic approach for the intervention of EC dysfunction-related pathologies.
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Affiliation(s)
- Geeta Rao
- Department of Pathology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Peggy and Charles Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Brennah Murphy
- Department of Pathology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Peggy and Charles Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Anindya Dey
- Department of Obstetrics and Gynecology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | | | - Yushan Zhang
- Department of Pathology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Peggy and Charles Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Ram Vinod Roy
- Department of Pathology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Peggy and Charles Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Prabir Chakraborty
- Department of Pathology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Peggy and Charles Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Resham Bhattacharya
- Peggy and Charles Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Department of Obstetrics and Gynecology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Priyabrata Mukherjee
- Department of Pathology, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
- Peggy and Charles Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
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29
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Xiao Y, Liu L, Zhang T, Zhou R, Ren Y, Li X, Shu H, Ye W, Zheng X, Zhang Z, Zhang H. Transcription factor MoMsn2 targets the putative 3-methylglutaconyl-CoA hydratase-encoding gene MoAUH1 to govern infectious growth via mitochondrial fusion/fission balance in Magnaporthe oryzae. Environ Microbiol 2020; 23:774-790. [PMID: 32431008 DOI: 10.1111/1462-2920.15088] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 05/09/2020] [Accepted: 05/15/2020] [Indexed: 01/22/2023]
Abstract
Mitochondrial quality and quantity are essential for a cell to maintain normal cellular functions. Our previous study revealed that the transcription factor MoMsn2 plays important roles in the development and virulence of Magnaporthe oryzae. However, to date, no study has reported its underlying regulatory mechanism in phytopathogens. Here, we explored the downstream target genes of MoMsn2 using a chromatin immunoprecipitation sequencing (ChIP-Seq) approach. In total, 332 target genes and five putative MoMsn2-binding sites were identified. The 332 genes exhibited a diverse array of functions and the highly represented were genes involved in metabolic and catalytic processes. Based on the ChIP-Seq data, we found that MoMsn2 plays a role in maintaining mitochondrial morphology, likely by targeting a number of mitochondria-related genes. Further investigation revealed that MoMsn2 targets the putative 3-methylglutaconyl-CoA hydratase-encoding gene (MoAUH1) to control mitochondrial morphology and mitophagy, which are critical for the infectious growth of the pathogen. Meanwhile, the deletion of MoAUH1 resulted in phenotypes similar to the ΔMomsn2 mutant in mitochondrial morphology, mitophagy and virulence. Overall, our results provide evidence for the regulatory mechanisms of MoMsn2, which targets MoAUH1 to modulate its transcript levels, thereby disturbing the mitochondrial fusion/fission balance. This ultimately affects the development and virulence of M. oryzae.
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Affiliation(s)
- Yuhan Xiao
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, and Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, 210095, China
| | - Luping Liu
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, and Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, 210095, China
| | - Ting Zhang
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, and Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, 210095, China
| | - Ruiwen Zhou
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, and Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, 210095, China
| | - Yuan Ren
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, and Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, 210095, China
| | - Xinrui Li
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, and Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, 210095, China
| | - Haidong Shu
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, and Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, 210095, China
| | - Wenwu Ye
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, and Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, 210095, China
| | - Xiaobo Zheng
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, and Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, 210095, China
| | - Zhengguang Zhang
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, and Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, 210095, China
| | - Haifeng Zhang
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, and Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, 210095, China
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30
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Oh CM, Ryu D, Cho S, Jang Y. Mitochondrial Quality Control in the Heart: New Drug Targets for Cardiovascular Disease. Korean Circ J 2020; 50:395-405. [PMID: 32216174 PMCID: PMC7098821 DOI: 10.4070/kcj.2019.0416] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 01/27/2020] [Accepted: 02/18/2020] [Indexed: 12/14/2022] Open
Abstract
Despite considerable efforts to prevent and treat cardiovascular disease (CVD), it has become the leading cause of death worldwide. Cardiac mitochondria are crucial cell organelles responsible for creating energy-rich ATP and mitochondrial dysfunction is the root cause for developing heart failure. Therefore, maintenance of mitochondrial quality control (MQC) is an essential process for cardiovascular homeostasis and cardiac health. In this review, we describe the major mechanisms of MQC system, such as mitochondrial unfolded protein response and mitophagy. Moreover, we describe the results of MQC failure in cardiac mitochondria. Furthermore, we discuss the prospects of 2 drug candidates, urolithin A and spermidine, for restoring mitochondrial homeostasis to treat CVD.
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Affiliation(s)
- Chang Myung Oh
- Department of Biomedical Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, Korea
| | - Dongryeol Ryu
- Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon, Korea
- Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University (SKKU), Suwon, Korea
- Samsung Biomedical Research Institute, Samsung Medical Center, Seoul, Korea
| | - Sungsoo Cho
- Division of Cardiovascular medicine, Department of Internal medicine, Dankook University College of Medicine, Dankook University Hospital, Cheonan, Korea
| | - Yangsoo Jang
- Division of Cardiology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
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31
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Peng X, Chen H, Li Y, Huang D, Huang B, Sun D. Effects of NIX-mediated mitophagy on ox-LDL-induced macrophage pyroptosis in atherosclerosis. Cell Biol Int 2020; 44:1481-1490. [PMID: 32181963 DOI: 10.1002/cbin.11343] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 03/14/2020] [Indexed: 12/11/2022]
Abstract
Pyroptosis is a form of cell death that is uniquely dependent on caspase-1. Pyroptosis involved in oxidized low-density lipoprotein (ox-LDL)-induced human macrophage death through the promotion of caspase-1 activation is important for the formation of unstable plaques in atherosclerosis. The mitochondrial outer membrane protein NIX directly interacts with microtubule-associated protein 1 light chain 3 (LC3). Although we previously showed that NIX-mediated mitochondrial autophagy is involved in the clearance of damaged mitochondria, how NIX contributes to ox-LDL-induced macrophage pyroptosis remains unknown. Here, immunoperoxidase staining Nix expression decreased in human atherosclerosis. When we silenced NIX expression in murine macrophage cell, active caspase-1, and mature interleukin-1β expression levels were increased and LC3 was reduced. In addition, LDH release and acridine orange and ethidium bromide staining indicated that damage to macrophage cell membranes induced by ox-LDL was substantially worse. Moreover, intracellular reactive oxygen species and NLRP3 inflammasome levels increased. Taken together, these results demonstrated that NIX inhibits ox-LDL-induced macrophage pyroptosis via autophagy in atherosclerosis.
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Affiliation(s)
- Xue Peng
- Department of Pathology, Anhui Armed Police General Hospital, Hefei, 230032, Anhui, China
| | - Hengmei Chen
- Department of Pathology, Anhui Armed Police General Hospital, Hefei, 230032, Anhui, China
| | - Yunyun Li
- Department of Immunology, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Dake Huang
- Department of Immunology, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Baojun Huang
- Department of Immunology, School of Basic Medical Sciences, Anhui Medical University, Hefei, 230032, Anhui, China
| | - Dengqun Sun
- Department of General Surgery, Anhui Armed Police General Hospital, Hefei, 230032, Anhui, China
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32
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Shen S, Yu H, Gan L, Ye Y, Lin L. Natural constituents from food sources: potential therapeutic agents against muscle wasting. Food Funct 2019; 10:6967-6986. [PMID: 31599912 DOI: 10.1039/c9fo00912d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Skeletal muscle wasting is highly correlated with not only reduced quality of life but also higher morbidity and mortality. Although an increasing number of patients are suffering from various kinds of muscle atrophy and weakness, there is still no effective therapy available, and skeletal muscle is considered as an under-medicated organ. Food provided not only essential macronutrients but also functional substances involved in the modulation of the physiological systems of our body. Natural constituents from commonly consumed dietary plants, either extracts or compounds, have attracted more and more attention to be developed as agents for preventing and treating muscle wasting due to their safety and effectiveness, as well as structural diversity. This review provides an overview of the mechanistic aspects of muscle wasting, and summarizes the extracts and compounds from food sources as potential therapeutic agents against muscle wasting.
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Affiliation(s)
- Shengnan Shen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China.
| | - Hua Yu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China.
| | - Lishe Gan
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
| | - Yang Ye
- State Key Laboratory of Drug Research, and Natural Products Chemistry Department, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Ligen Lin
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China.
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33
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Flavonoid VI-16 protects against DSS-induced colitis by inhibiting Txnip-dependent NLRP3 inflammasome activation in macrophages via reducing oxidative stress. Mucosal Immunol 2019; 12:1150-1163. [PMID: 31152156 DOI: 10.1038/s41385-019-0177-x] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Revised: 05/13/2019] [Accepted: 05/16/2019] [Indexed: 02/04/2023]
Abstract
Emerging evidence suggests that NLRP3 inflammasome was associated with various kinds of immunological diseases including colitis. However, there are few drugs targeting inflammasomes in the treatment of colitis. Several flavonoids have been found to affect the inflammasome pathway, but the mechanism is still confusing. Here we report that VI-16, a synthetic flavonoid compound, exerts potent anti-inflammatory effects on macrophages in DSS-induced colitis mice, which intervened in the activation of NLRP3 inflammasome without affecting intestinal epithelial cells. However, the protection of VI-16 against DSS-induced colitis was dependent on NLRP3 expression in hematopoietic cells. Furthermore, this inhibitory effect of VI-16 was found to be at least partially achieved by decreasing the mitochondrial ROS generation without affecting autophagy. Further studies confirm that VI-16 inhibits the binding of Txnip to NLRP3 by reducing oxidative stress and ultimately inhibits NLRP3 inflammasome. This demonstrates the ability of VI-16 to inhibit the NLRP3 inflammasome activation and its potential use in the treatment of inflammatory bowel disease.
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Zhu LB, Cao MM, Wang J, Su Y, Jiang W, Liu GD, Li YB. Role of autophagy in LPS‑induced inflammation in INS‑1 cells. Mol Med Rep 2019; 19:5211-5218. [PMID: 31059020 DOI: 10.3892/mmr.2019.10172] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Accepted: 11/09/2018] [Indexed: 11/05/2022] Open
Abstract
Inflammation has been implicated in the pathogenesis of type 2 diabetes (T2D), which is a progressive disease characterized by pancreatic β‑cell dysfunction and apoptosis with consequential insufficient insulin secretion. Autophagy is necessary to maintain the structure, mass and function of pancreatic β‑cells. The present study investigated the crosstalk between autophagy and inflammasome activation in T2D. INS‑1 cells were stimulated with lipopolysaccharide. Apoptosis and reactive oxygen species (ROS) formation were measured using flow cytometry, and cell proliferation was measured using Cell Counting Kit‑8 solution. Autophagy was assayed using western blotting and transmission electron microscopy. The expression levels of interleukin‑1β (IL‑1β) and caspase‑1 were detected by western blotting. The results demonstrated that inhibiting autophagy using 3‑methyladenine (3‑MA) promoted INS‑1 cell apoptosis. This response was correlated with an increase in ROS production and the inflammatory response, including IL‑1β maturation and caspase‑1 activation. Furthermore, when ROS were inhibited using N‑acetyl‑L‑cysteine, inflammation was decreased. These results demonstrated that inhibition of autophagy enhanced inflammatory injury via the ROS‑mediated activation of the Nod‑like receptor pyrin domain‑containing protein 3 inflammasome. Autophagy may have a protective effect by mitigating inflammation in T2D, which may provide a novel approach for T2D treatment.
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Affiliation(s)
- Li-Bo Zhu
- Department of Endocrinology, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Ming-Ming Cao
- Department of Endocrinology, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Jun Wang
- Department of Endocrinology, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Ying Su
- Department of Endocrinology, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Wei Jiang
- Department of Endocrinology, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Guo-Dong Liu
- Department of Endocrinology, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Yan-Bo Li
- Department of Endocrinology, First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
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Brito C, Cabanes D, Sarmento Mesquita F, Sousa S. Mechanisms protecting host cells against bacterial pore-forming toxins. Cell Mol Life Sci 2019; 76:1319-1339. [PMID: 30591958 PMCID: PMC6420883 DOI: 10.1007/s00018-018-2992-8] [Citation(s) in RCA: 93] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 12/06/2018] [Accepted: 12/10/2018] [Indexed: 12/19/2022]
Abstract
Pore-forming toxins (PFTs) are key virulence determinants produced and secreted by a variety of human bacterial pathogens. They disrupt the plasma membrane (PM) by generating stable protein pores, which allow uncontrolled exchanges between the extracellular and intracellular milieus, dramatically disturbing cellular homeostasis. In recent years, many advances were made regarding the characterization of conserved repair mechanisms that allow eukaryotic cells to recover from mechanical disruption of the PM membrane. However, the specificities of the cell recovery pathways that protect host cells against PFT-induced damage remain remarkably elusive. During bacterial infections, the coordinated action of such cell recovery processes defines the outcome of infected cells and is, thus, critical for our understanding of bacterial pathogenesis. Here, we review the cellular pathways reported to be involved in the response to bacterial PFTs and discuss their impact in single-cell recovery and infection.
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Affiliation(s)
- Cláudia Brito
- i3S-Instituto de Investigação e Inovação em Saúde, IBMC, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135, Porto, Portugal
- Programa Doutoral em Biologia Molecular e Celular (MCbiology), Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua Jorge de Viterbo Ferreira 228, 4050-313, Porto, Portugal
| | - Didier Cabanes
- i3S-Instituto de Investigação e Inovação em Saúde, IBMC, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135, Porto, Portugal
| | - Francisco Sarmento Mesquita
- i3S-Instituto de Investigação e Inovação em Saúde, IBMC, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135, Porto, Portugal.
- Global Health Institute, School of Life Science, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.
| | - Sandra Sousa
- i3S-Instituto de Investigação e Inovação em Saúde, IBMC, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135, Porto, Portugal.
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36
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Gómez-Cabañas L, López-Cotarelo P, Criado-García O, Murphy MP, Boya P, Rodríguez-Fernández JL. Immunological Synapse Formation Induces Mitochondrial Clustering and Mitophagy in Dendritic Cells. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2019; 202:1715-1723. [PMID: 30718295 DOI: 10.4049/jimmunol.1800575] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 01/07/2019] [Indexed: 02/02/2023]
Abstract
The immunological synapse (IS) is a superstructure formed during T cell activation at the zone of contact between T cells and dendritic cells (DCs). The IS includes specific molecular components in the T cell and DCs sides that may result in different functionality. Most of the studies on the IS have focused on the T cell side of this structure and, in contrast, the information available on the IS of DCs is sparse. Autophagy is a cellular process involved in the clearance of damaged proteins and organelles via lysosomal degradation. Mitophagy is the selective autophagy of damaged mitochondria. In this study, it is shown that IS formation induces clustering of mitochondria in the IS of DCs and partial depolarization of these organelles. At the IS of the DCs also accumulate autophagy and mitophagy markers, even when the kinase complex mTORC1, an inhibitor of the autophagy, is active. Together the results presented indicate that IS formation induces local clustering of mitochondria and mitophagy, which could be a homeostatic mechanism to control the quality of mitochondria in this region. The data underline the complexity of the regulatory mechanisms operating in the IS of DCs.
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Affiliation(s)
- Laura Gómez-Cabañas
- Cellular and Molecular Biology Department, Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, 28040 Madrid, Spain; and
| | - Pilar López-Cotarelo
- Cellular and Molecular Biology Department, Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, 28040 Madrid, Spain; and
| | - Olga Criado-García
- Cellular and Molecular Biology Department, Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, 28040 Madrid, Spain; and
| | - Michael P Murphy
- Medical Research Council-Mitochondrial Biology Unit, University of Cambridge, Cambridge CB2 0XY, United Kingdom
| | - Patricia Boya
- Cellular and Molecular Biology Department, Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, 28040 Madrid, Spain; and
| | - José Luis Rodríguez-Fernández
- Cellular and Molecular Biology Department, Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, 28040 Madrid, Spain; and
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Manshian BB, Pokhrel S, Mädler L, Soenen SJ. The impact of nanoparticle-driven lysosomal alkalinization on cellular functionality. J Nanobiotechnology 2018; 16:85. [PMID: 30382919 PMCID: PMC6208102 DOI: 10.1186/s12951-018-0413-7] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 10/25/2018] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND The biomedical use of nanosized materials is rapidly gaining interest, which drives the quest to elucidate the behavior of nanoparticles (NPs) in a biological environment. Apart from causing direct cell death, NPs can affect cellular wellbeing through a wide range of more subtle processes that are often overlooked. Here, we aimed to study the effect of two biomedically interesting NP types on cellular wellbeing. RESULTS In the present work, gold and SiO2 NPs of similar size and surface charge are used and their interactions with cultured cells is studied. Initial screening shows that at subcytotoxic conditions gold NPs induces cytoskeletal aberrations while SiO2 NPs do not. However, these transformations are only transient. In-depth investigation reveals that Au NPs reduce lysosomal activity by alkalinization of the lysosomal lumen. This leads to an accumulation of autophagosomes, resulting in a reduced cellular degradative capacity and less efficient clearance of damaged mitochondria. The autophagosome accumulation induces Rac and Cdc42 activity, and at a later stage activates RhoA. These transient cellular changes also affect cell functionality, where Au NP-labelled cells display significantly impeded cell migration and invasion. CONCLUSIONS These data highlight the importance of in-depth understanding of bio-nano interactions to elucidate how one biological parameter (impact on cellular degradation) can induce a cascade of different effects that may have significant implications on the further use of labeled cells.
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Affiliation(s)
- Bella B Manshian
- NanoHealth and Optical Imaging Group, Department of Imaging and Pathology, KU Leuven, Leuven, Belgium.,Molecular Small Animal Imaging Center, KU Leuven, Leuven, Belgium
| | - Suman Pokhrel
- Foundation Institute of Materials Science (IWT), Department of Production Engineering, University of Bremen, 28359, Bremen, Germany.,Leibniz Institute for Materials Engineering IWT, Badgasteiner Str. 3, 28359, Bremen, Germany
| | - Lutz Mädler
- Foundation Institute of Materials Science (IWT), Department of Production Engineering, University of Bremen, 28359, Bremen, Germany.,Leibniz Institute for Materials Engineering IWT, Badgasteiner Str. 3, 28359, Bremen, Germany
| | - Stefaan J Soenen
- NanoHealth and Optical Imaging Group, Department of Imaging and Pathology, KU Leuven, Leuven, Belgium. .,Molecular Small Animal Imaging Center, KU Leuven, Leuven, Belgium.
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Huang Y, Yang P, Chen H, Bai X, Wang X, Vistro WA, Haseeb A, Shi Y, Chen Q. A "Lamellar structure" contributes to autophagosome biogenesis and mitophagy in zebrafish hepatocytes. FISH & SHELLFISH IMMUNOLOGY 2018; 81:83-91. [PMID: 29960063 DOI: 10.1016/j.fsi.2018.06.044] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 06/21/2018] [Accepted: 06/26/2018] [Indexed: 06/08/2023]
Abstract
Despite many studies being conducted over the past few decades, the origin of autophagosomal membranes remains unclear. The present study aimed to uncover the formation process of autophagosomal membranes in hepatocytes of zebrafish (Danio rerio), a model organism in medical science. Immunohistochemistry of zebrafish hepatocytes indicated that light chain 3-like protein 2 (LC3-II) is highly active in some hepatocytes, but poorly expressed in others. Under transmission electron microscopy, the amount of autophagosomes (APs) varied in different hepatocytes. When the endoplasmic reticulum (ER) is dispersed in the cytoplasm, few isolation membranes (IMs) and APs were observed. Subsequently, when the ER assembles into a particular "lamellar structure" (LS), IMs arise from it and extend to enwrap the mitochondria. With further aggregation of the ER, the LS developed into an over twenty-layered structure, and mitophagy was more obvious in the hepatocytes and cavities appeared in mitochondria. Finally, most ERs were assembled into several LSs. At this point, mitophagy was most active in the hepatocytes. Thereafter, glycogen and lipid droplet increased gradually, while the LS degenerated and ER scatter increased. Then, the glycogen and lipid droplets dominated the hepatocellular cytoplasm. After suppressing the formation of autophagosomes using 3-Methyladenine (3-MA), the LS could no longer be visualized in the hepatocellular cytoplasm, and mitophagy decreased drastically. Taken together, the results suggested that this LS in the hepatocytes of zebrafish, might be another manifestation of a pre-autophagosomal structure in zebrafish liver, analogous to the omegasome in yeast or the ER-IM complex in mammalian cell lines. Furthermore, selective mitophagy and consequent cyclic utilization of its products were probably relevant to dynamic cycle of the hepatocellular cytoplasm.
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Affiliation(s)
- Yufei Huang
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province, 210095, China
| | - Ping Yang
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province, 210095, China
| | - Hong Chen
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province, 210095, China
| | - Xuebing Bai
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province, 210095, China
| | - Xindong Wang
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province, 210095, China
| | - Waseem Ali Vistro
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province, 210095, China
| | - Abdul Haseeb
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province, 210095, China
| | - Yonghong Shi
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, 200241, China
| | - Qiusheng Chen
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, Jiangsu Province, 210095, China.
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Ding JL, Peng YJ, Chu XL, Feng MG, Ying SH. Autophagy-related gene BbATG11 is indispensable for pexophagy and mitophagy, and contributes to stress response, conidiation and virulence in the insect mycopathogen Beauveria bassiana. Environ Microbiol 2018; 20:3309-3324. [PMID: 30058280 DOI: 10.1111/1462-2920.14329] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 06/06/2018] [Accepted: 06/17/2018] [Indexed: 12/17/2022]
Abstract
Autophagy is a conserved degradation system in eukaryotic cells that includes non-selective and selective processes. Selective autophagy functions as a selective degradation mechanism for specific substrates in which autophagy-related protein 11 (ATG11) acts as an essential scaffold protein. In B. bassiana, there is a unique ATG11 family protein, which is designated as BbATG11. Disruption of BbATG11 resulted in significantly reduced conidial germination under starvation stress. The mutant ΔBbATG11 displayed enhanced sensitivity to oxidative stress and impaired asexual reproduction. The conidial yield was reduced by approximately 75%, and this defective phenotype could be repressed by increasing exogenous nutrients. The virulence of the ΔBbATG11 mutant strain was significantly impaired as indicated in topical and intra-hemocoel injection bioassays, with a greater reduction in topical infection. Notably, BbATG11 was involved in pexophagy and mitophagy, but these two autophagic processes appeared in different fungal physiological aspects. Both pexophagy and mitophagy were associated with nutrient shift, starvation stress and growth in the host hemocoel, but only pexophagy appeared in both oxidation-stressed cells and aerial mycelia. This study highlights that BbATG11 mediates pexophagy and mitophagy in B. bassiana and links selective autophagy to the fungal stress response, conidiation and virulence.
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Affiliation(s)
- Jin-Li Ding
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Yue-Jin Peng
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Xin-Ling Chu
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Ming-Guang Feng
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Sheng-Hua Ying
- Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
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Abstract
The spatial density of mitochondria was studied by thin-section electron microscopy in
smooth muscles of bladder, iris and gut in mice, rats, guinea-pigs and sheep. Morphometric
data included areas of muscle cell profiles (~6,000 muscle cells were measured) and areas
of their mitochondria (more than three times as many). The visual method delivers accurate
estimates of the extent of the chondrioma (the ensemble of mitochondria in a cell),
measuring all and only the mitochondria in each muscle cell and no other cells. The
digital records obtained can be used again for checks and new searches. Spatial density of
mitochondria varies between about 2 and 10% in different muscles in different species. In
contrast, there is consistency of mitochondrial density within a given muscle in a given
species. For each muscle in each species there is a characteristic mitochondrial density
with modest variation between experiments. On the basis of data from serial sections in
the rat detrusor muscle, mitochondrial density varies very little between the muscle
cells, each cell having a value close to that for the whole muscle. Mitochondrial density
is different in a given muscle, e.g., ileal circular muscle, from the four mammalian
species, with highest values in mouse and lowest in sheep; in mice the mitochondrial
density is nearly three time higher that in sheep. In a given species there are
characteristic variations between different muscles. For example, the bladder detrusor
muscle has markedly fewer mitochondria than the ileum, and the iris has markedly more.
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41
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Huang C, Lu H, Xu J, Yu H, Wang X, Zhang X. Protective roles of autophagy in retinal pigment epithelium under high glucose condition via regulating PINK1/Parkin pathway and BNIP3L. Biol Res 2018; 51:22. [PMID: 30012208 PMCID: PMC6047129 DOI: 10.1186/s40659-018-0169-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Accepted: 06/06/2018] [Indexed: 12/11/2022] Open
Abstract
Background Our study aimed to investigate the roles of autophagy against high glucose induced response in retinal pigment epithelium (ARPE-19 cells). Methods The morphological changes and reactive oxygen species (ROS) generation in ARPE-19 cells under high glucose treatment were respectively detected using the transmission electron microscopy and flow cytometry. The expression levels of Parkin, PINK1, BNIP3L, LC3-I and LC3-II in ARPE-19 cells received high glucose treatment were measured by western blot after pretreatment of carbonyl cyanide m-chlorophenylhydrazone (CCCP), 3-methyladenine (3-MA), N-acetyl cysteine (NAC) or cyclosporin A (CsA) followed by high glucose treatment. Results ARPE-19 cells subjected to high glucose stress showed an obvious reduction in the LC3-I expression and significant increase in the number of autophagosomes, in the intracellular ROS level, and in the expression levels of Parkin, PINK1, BNIP3L and LC3-II (p < 0.05). Pretreatment with CCCP significantly reduced the LC3-I expression and increased the expression levels of Parkin, PINK1, BNIP3L and LC3-II (p < 0.05). ARPE-19 cells pretreated with CsA under high glucose stress showed markedly down-regulated expressions of Parkin, PINK1 and BNIP3L compared with the cells treated with high glucose (p < 0.05). Pretreatment of ARPE-19 cells with NAC or 3-MA under high glucose stress resulted in a marked reduction in the expression levels of PINK1, BNIP3L and LC3-II (p < 0.05). Meanwhile, the expression level of Parkin in the ARPE-19 cells pretreated with NAC under high glucose stress was comparable with that in the control cells. Conclusion Autophagy might have protective roles against high glucose induced injury in ARPE19 cells via regulating PINK1/Parkin pathway and BNIP3L.
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Affiliation(s)
- Chengchi Huang
- Ophthalmology Hospital, The First Affiliated Hospital of Harbin Medical University, 23 Youzheng Street, Nangang District, Harbin, 150001, China.,Department of Ophthalmology, The Fourth Affiliated Hospital, Harbin Medical University, 17 Yiyuan Street, Nangang District, Harbin, 150001, China
| | - Hong Lu
- Ophthalmology Hospital, The First Affiliated Hospital of Harbin Medical University, 23 Youzheng Street, Nangang District, Harbin, 150001, China
| | - Junyu Xu
- Ophthalmology Hospital, The First Affiliated Hospital of Harbin Medical University, 23 Youzheng Street, Nangang District, Harbin, 150001, China
| | - Hongmin Yu
- Ophthalmology Hospital, The First Affiliated Hospital of Harbin Medical University, 23 Youzheng Street, Nangang District, Harbin, 150001, China
| | - Xiaodan Wang
- Ophthalmology Hospital, The First Affiliated Hospital of Harbin Medical University, 23 Youzheng Street, Nangang District, Harbin, 150001, China
| | - Xiaomei Zhang
- Ophthalmology Hospital, The First Affiliated Hospital of Harbin Medical University, 23 Youzheng Street, Nangang District, Harbin, 150001, China.
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42
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Gong J, Jin J, Zhao L, Li Y, Li Y, He Q. Tripterygium glycoside protects against puromycin amino nucleoside‑induced podocyte injury by upregulating autophagy. Int J Mol Med 2018; 42:115-122. [PMID: 29620171 PMCID: PMC5979933 DOI: 10.3892/ijmm.2018.3598] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 03/22/2018] [Indexed: 12/14/2022] Open
Abstract
Tripterygium glycoside (TG), an active ingredient of the widely used Chinese herb Tripterygium wilfordii Hook F, has immunosuppressive and anti-inflammatory effects. Previous studies have indicated that TG is a potentially effective therapeutic option to treat nephrotic syndrome. The mechanism underlying the therapeutic effect of TG, including its effect on autophagy and apoptosis in podocyte injury, remains to be fully elucidated. The present study aimed to assess the protective effect of TG on podocytes via its potential role in the activation of autophagic and phosphatidylinositol 3-kinase (PI3K) pathways. Using flow cytometry, western blot analysis, cell counting kit-8 assays and transmission electron microscopy analysis, the effects of TG on puromycin amino-nucleoside (PAN)-induced podocyte injury were investigated. Chloroquine (CQ), an inhibitor of autophagy, was used to assess the importance of autophagy in the protective effect of TG. In addition, LY294002, an inhibitor of class III PI3K, was used to identify which signaling pathways TG is involved in. PAN caused marked apoptosis of podocytes, which was significantly antagonized by TG. The expression of microtubule-associated protein 1A/1B-light chain 3 and the appearance of autophagosomes increased significantly following TG treatment, whereas the expression levels of p62 and cleaved caspase-3 were markedly decreased. Podocyte apoptosis decreased significantly when the podocytes were treated with TG compared with the levels of apoptosis in the PAN- and PAN+CQ-treated groups. The expression of phosphorylated AKT was increased significantly in the TG-treated groups, and the effects of TG on the podocytes were significantly inhibited by LY294002. In conclusion, TG protected podocytes from PAN-induced injury, and the effects were attributable to the activation of autophagy, mainly via a PI3K-dependent pathway.
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Affiliation(s)
- Jianguang Gong
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325035, P.R. China
| | - Juan Jin
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325035, P.R. China
| | - Li Zhao
- Department of Nephrology, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang 310014, P.R. China
| | - Yiqiao Li
- Department of Nephrology, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang 310014, P.R. China
| | - Yiwen Li
- Department of Nephrology, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang 310014, P.R. China
| | - Qiang He
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325035, P.R. China
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43
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Li Y, Liu Z, Zhang Y, Zhao Q, Wang X, Lu P, Zhang H, Wang Z, Dong H, Zhang Z. PEDF protects cardiomyocytes by promoting FUNDC1‑mediated mitophagy via PEDF-R under hypoxic condition. Int J Mol Med 2018; 41:3394-3404. [PMID: 29512692 PMCID: PMC5881750 DOI: 10.3892/ijmm.2018.3536] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2016] [Accepted: 02/15/2018] [Indexed: 01/15/2023] Open
Abstract
Pigment epithelial-derived factor (PEDF) is known to exert diverse physiological activities. Previous studies suggest that hypoxia could induce mitophagy. Astoundingly, under hypoxic condition, we found that PEDF decreased the mitochondrial density of cardiomyocytes. In this study, we evaluated whether PEDF could decrease the mitochondrial density and play a protective role in hypoxic cardiomyocytes via promoting mitophagy. Immunostaining and western blotting were used to analyze mitochondrial density and mitophagy of hypoxic cardiomyocytes. Gas chromatography-mass spectrometry and ELISA were used to analyze levels of palmitic acid and diacylglycerol. Transmission Electron Microscopy was used to detect mitophagy and the mitochondrial density in adult male Sprague-Dawley rat model of acute myocardial infarction. Compared to the control group, we observed that PEDF decreased mitochondrial density through promoting hypoxic cardiomyocyte mitophagy. PEDF increased the levels of palmitic acid and diacylglycerol, and then upregulated the levels of protein kinase Cα (PKC-α) and its activation. Furthermore, inhibition of PKC-α by Go6976 could effectively suppress PEDF-induced mitophagy. Besides, we found that PEDF promoted FUNDC1-mediated cardiomyocyte mitophagy via ULK1, which depended on the activation of PKC-α. Finally, we discovered that mitophagy was increased and mitochondrial density was reduced in adult male Sprague-Dawley rat model of acute myocardial infarction. We concluded that PEDF promotes mitophagy to protect hypoxic cardiomyocytes, through PEDF/PEDF-R/PA/DAG/PKC-α/ULK1/FUNDC1 pathway.
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Affiliation(s)
- Yufeng Li
- Department of Thoracic Cardiovascular Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221006, P.R. China
| | - Zhiwei Liu
- Research Facility Center for Morphology, Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China
| | - Yiqian Zhang
- Department of Thoracic Cardiovascular Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221006, P.R. China
| | - Qixiang Zhao
- Department of Thoracic Cardiovascular Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221006, P.R. China
| | - Xiaoyu Wang
- Department of Thoracic Cardiovascular Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221006, P.R. China
| | - Peng Lu
- Department of Thoracic Cardiovascular Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221006, P.R. China
| | - Hao Zhang
- Department of Thoracic Cardiovascular Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221006, P.R. China
| | - Zhu Wang
- Department of Thoracic Cardiovascular Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221006, P.R. China
| | - Hongyan Dong
- Research Facility Center for Morphology, Xuzhou Medical University, Xuzhou, Jiangsu 221004, P.R. China
| | - Zhongming Zhang
- Department of Thoracic Cardiovascular Surgery, Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221006, P.R. China
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Selective autophagy: The new player in the fight against neurodegenerative diseases? Brain Res Bull 2018; 137:79-90. [DOI: 10.1016/j.brainresbull.2017.11.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 11/05/2017] [Accepted: 11/14/2017] [Indexed: 12/21/2022]
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45
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Feng J, Luo L, Liu Y, Fu S, Chen J, Duan X, Xiang L, Zhang Y, Wu J, Fan J, Wen Q, Zhang Y, Yang J, Peng J, Zhao M, Yang L. TP53-induced glycolysis and apoptosis regulator is indispensable for mitochondria quality control and degradation following damage. Oncol Lett 2018; 15:155-160. [PMID: 29375708 PMCID: PMC5766069 DOI: 10.3892/ol.2017.7303] [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: 09/13/2016] [Accepted: 09/22/2017] [Indexed: 11/06/2022] Open
Abstract
Mitochondria have been described as 'the powerhouse of the cell' as the organelle generates the majority of adenosine triphosphate (ATP) in cells to support life. Mitochondria can be damaged due to stress, for example by reactive oxygen species (ROS). TP53-induced glycolysis and apoptosis regulator (TIGAR) serves a role in suppressing ROS damage and may protect mitochondria integrity. In the present study, the localization of TIGAR on mitochondria in 5-8F cells was demonstrated. Furthermore, it was indicated that the knockdown of TIGAR using lentivirus-short hairpin RNA induces the loss of mitochondrial membrane potential and cytochrome c leakage. However, these damaged mitochondria were not degraded in cells, but exhibited an abnormal appearance as indicated by mitochondrial swelling, crista collapse and vacuolization, with physiological dysfunction marked by reduced ATP production. Therefore, TIGAR maybe an indispensable protein for mitochondrial protection and degradation following cellular damage.
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Affiliation(s)
- Jing Feng
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Li Luo
- Department of Laboratory Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Yong Liu
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Shaozhi Fu
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Jie Chen
- Department of Rheumatology and Immunology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Xiaoxia Duan
- Department of Anesthesiology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Li Xiang
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Yanling Zhang
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Jinbo Wu
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Juan Fan
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Qinglian Wen
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Ye Zhang
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Jingpin Yang
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Jinxia Peng
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Ming Zhao
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Linglin Yang
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
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Picca A, Lezza AMS, Leeuwenburgh C, Pesce V, Calvani R, Bossola M, Manes-Gravina E, Landi F, Bernabei R, Marzetti E. Circulating Mitochondrial DNA at the Crossroads of Mitochondrial Dysfunction and Inflammation During Aging and Muscle Wasting Disorders. Rejuvenation Res 2018; 21:350-359. [PMID: 29125070 DOI: 10.1089/rej.2017.1989] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Mitochondrial structural and functional integrity is maintained through the coordination of several processes (e.g., biogenesis, dynamics, mitophagy), collectively referred to as mitochondrial quality control (MQC). Dysfunctional MQC and inflammation are hallmarks of aging and are involved in the pathogenesis of muscle wasting disorders, including sarcopenia and cachexia. One of the consequences of failing MQC is the release of mitochondria-derived damage-associated molecular patterns (DAMPs). By virtue of their bacterial ancestry, these molecules can trigger an inflammatory response by interacting with receptors similar to those involved in pathogen-associated responses. Mitochondria-derived DAMPs, especially cell-free mitochondrial DNA, have recently been associated with conditions characterized by chronic inflammation, such as aging and degenerative diseases. Yet, their actual implication in the aging process and muscle wasting disorders is at an early stage of investigation. Here, we review the contribution of mitochondria-derived DAMPs to age-related systemic inflammation. We also provide arguments in support of the exploitation of such signaling pathways for the management of muscle wasting conditions.
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Affiliation(s)
- Anna Picca
- 1 Department of Geriatrics, Neuroscience and Orthopedics, Teaching Hospital "Agostino Gemelli," Catholic University of the Sacred Heart School of Medicine , Rome, Italy
| | | | - Christiaan Leeuwenburgh
- 3 Division of Biology of Aging, Department of Aging and Geriatric Research, Institute on Aging, University of Florida , Gainesville, Florida
| | - Vito Pesce
- 2 Department of Biosciences, Biotechnology and Biopharmaceutics, University of Bari , Bari, Italy
| | - Riccardo Calvani
- 1 Department of Geriatrics, Neuroscience and Orthopedics, Teaching Hospital "Agostino Gemelli," Catholic University of the Sacred Heart School of Medicine , Rome, Italy
| | - Maurizio Bossola
- 4 Department of Surgery, Catholic University of the Sacred Heart School of Medicine , Rome, Italy
| | - Ester Manes-Gravina
- 1 Department of Geriatrics, Neuroscience and Orthopedics, Teaching Hospital "Agostino Gemelli," Catholic University of the Sacred Heart School of Medicine , Rome, Italy
| | - Francesco Landi
- 1 Department of Geriatrics, Neuroscience and Orthopedics, Teaching Hospital "Agostino Gemelli," Catholic University of the Sacred Heart School of Medicine , Rome, Italy
| | - Roberto Bernabei
- 1 Department of Geriatrics, Neuroscience and Orthopedics, Teaching Hospital "Agostino Gemelli," Catholic University of the Sacred Heart School of Medicine , Rome, Italy
| | - Emanuele Marzetti
- 1 Department of Geriatrics, Neuroscience and Orthopedics, Teaching Hospital "Agostino Gemelli," Catholic University of the Sacred Heart School of Medicine , Rome, Italy
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47
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Hou CC, Wei CG, Lu CP, Gao XM, Yang WX, Zhu JQ. Prohibitin-mediated mitochondrial ubiquitination during spermiogenesis in Chinese mitten crab Eriocheir sinensis. Oncotarget 2017; 8:98782-98797. [PMID: 29228727 PMCID: PMC5716767 DOI: 10.18632/oncotarget.21961] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 09/23/2017] [Indexed: 12/21/2022] Open
Abstract
The sperm of Eriocheir sinensis has a cup-shaped nucleus that contains several mitochondria embedded at the opening of the cup. The acrosome vesicle also contains derivants of mitochondria. The mitochondria distribution pattern involves a decrease in the number and changes in the structure and transportation of these organelles. The decreased number of sperm mitochondria is achieved through autophagy or the ubiquitination pathway. Prohibitin (PHB), the mitochondria inner membrane protein, is an evolutionarily highly conserved protein, is closely associated with spermatogenesis and sperm quality control and is also a potential substrate of ubiquitination. However, whether PHB protein mediates the ubiquitination pathway of sperm mitochondria in crustacean animals remains poorly understood. In the present study, we revealed that PHB, a substrate of ubiquitin, participates in the ubiquitination and degradation of mitochondria during spermiogenesis in E. sinensis. To confirm this finding, we used shRNA interference to reduce PHB expression and an overexpression technique to increase PHB expression in vitro. The interference experiment showed that the reduced PHB expression directly affected the polyubiquitination level and mitochondria status, whereas PHB overexpression markedly increased the polyubiquitination level. In vitro experiments also showed that PHB and its ubiquitination decide the fate of mitochondria.
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Affiliation(s)
- Cong-Cong Hou
- Key Laboratory of Applied Marine Biotechnology of Ministry of Education, School of Marine Sciences, Ningbo University, Ningbo 315211, China
| | - Chao-Guang Wei
- Key Laboratory of Applied Marine Biotechnology of Ministry of Education, School of Marine Sciences, Ningbo University, Ningbo 315211, China
| | - Cheng-Peng Lu
- Key Laboratory of Applied Marine Biotechnology of Ministry of Education, School of Marine Sciences, Ningbo University, Ningbo 315211, China
| | - Xin-Ming Gao
- Key Laboratory of Applied Marine Biotechnology of Ministry of Education, School of Marine Sciences, Ningbo University, Ningbo 315211, China
| | - Wan-Xi Yang
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jun-Quan Zhu
- Key Laboratory of Applied Marine Biotechnology of Ministry of Education, School of Marine Sciences, Ningbo University, Ningbo 315211, China
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48
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Wang X, Xu Y, Zhang Y, Si Y, Jing L, Bao H. The effect of adiponectin on LPS-induced inflammation via autophagy in RAW 264.7 macrophages. EUR J INFLAMM 2017. [DOI: 10.1177/1721727x17737208] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Mitochondrial dysfunction is involved in the process of sepsis and leads to the accumulation of reactive oxygen species (ROS), which breaks cellular homeostasis and activates the downstream inflammatory cascade. The autophagic removal of ROS is a well-established cellular adaptive mechanism. Adiponectin is an adipocytokine that plays an important role in metabolic and inflammatory regulation. In this study, we investigated the anti-inflammatory effect of adiponectin in a sepsis model and its potential association with autophagy. We induced RAW 264.7 macrophages with lipopolysaccharide (LPS) to set up the sepsis model and treated them with adiponectin, an inhibitor of the nucleotide-binding domain and leucine-rich repeat containing family pyrin domain–containing 3 (NLRP3), ROS, Complex I, and an autophagy inhibitor. Flow cytometry and western blot analysis were performed to detect the expression levels of ROS, NLRP3, interleukin-1 beta (IL-1β), microtubule-associated protein 1A/1B-light chain 3II/I (LC3II/I), and adenosine monophosphate–activated protein kinase (AMPK). Expression levels of NLRP3, IL-1β, and ROS were significantly increased following LPS induction, and adiponectin reversed this up-regulation. Meanwhile, adiponectin also enhanced the expression of LC3II/I, an autophagosome marker, but an autophagy inhibitor and AMPK inhibitor depleted (reversed) the anti-inflammatory and antioxidant effect of adiponectin. Taken together, in the LPS-induced sepsis model, adiponectin alleviated the inflammatory reaction by reducing ROS production, possibly by enhancing autophagy via the AMPK pathway. The activation of autophagy may therefore be a key mechanism by which adiponectin ameliorates the inflammatory reactions of sepsis.
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Affiliation(s)
- Xiaoliang Wang
- Department of Anesthesiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Yajie Xu
- Department of Anesthesiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Yong Zhang
- Department of Anesthesiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Yanna Si
- Department of Anesthesiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Leng Jing
- Department of Pathology, Nanjing Medical University, Nanjing, China
| | - Hongguang Bao
- Department of Anesthesiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
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49
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Netto CA, Sanches E, Odorcyk FK, Duran-Carabali LE, Weis SN. Sex-dependent consequences of neonatal brain hypoxia-ischemia in the rat. J Neurosci Res 2016; 95:409-421. [DOI: 10.1002/jnr.23828] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 06/14/2016] [Accepted: 06/20/2016] [Indexed: 12/25/2022]
Affiliation(s)
- Carlos Alexandre Netto
- Department of Biochemistry, Instituto de Ciências Básicas da Saúde; Universidade Federal do Rio Grande do Sul; Porto Alegre Rio Grande do Sul Brazil
| | - Eduardo Sanches
- Division of Child Development and Growth, Department of Pediatrics; University of Geneva; Geneva Switzerland
| | - Felipe Kawa Odorcyk
- Postgraduate Program of Neurosciences, Instituto de Ciências Básicas da Saúde; Universidade Federal do Rio Grande do Sul; Porto Alegre Rio Grande do Sul Brazil
| | - Luz Elena Duran-Carabali
- Postgraduate Program of Physiology, Instituto de Ciências Básicas da Saúde; Universidade Federal do Rio Grande do Sul; Porto Alegre Rio Grande do Sul Brazil
| | - Simone Nardin Weis
- Department of Cellular Biology; Universidade de Brasília; Brasilia Distrito Federal Brazil
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50
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Malakhova LV, Lomaeva MG, Zakharova ML, Kirillova EN, Sokolova SN, Antipova VN, Bezlepkin VG. Mitochondrial DNA deletions in the peripheral blood of workers at the Mayak PA who were exposed to long-term combined effects of external γ- and internal α-radiation. Biophysics (Nagoya-shi) 2016. [DOI: 10.1134/s0006350916060142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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