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Deng Y, Li Y, Yang M, Gao Y, Luo X, Chen H, Guo M, Yang X, Liu Y, He J, Lu B, Liu N. Carfilzomib activates ER stress and JNK/p38 MAPK signaling to promote apoptosis in hepatocellular carcinoma cells. Acta Biochim Biophys Sin (Shanghai) 2024; 56:697-708. [PMID: 38591121 PMCID: PMC11177107 DOI: 10.3724/abbs.2024040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 01/04/2024] [Indexed: 04/10/2024] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most prevalent and deadly cancers in the world, which is frequently diagnosed at a late stage. HCC patients have a poor prognosis due to the lack of an efficacious therapeutic strategy. Approved drug repurposing is a way for accelerating drug discovery and can significantly reduce the cost of drug development. Carfilzomib (CFZ) is a second-generation proteasome inhibitor, which is highly efficacious against multiple myeloma and has been reported to possess potential antitumor activities against multiple cancers. However, the underlying mechanism of CFZ on HCC is still unclear. Here, we show that CFZ inhibits the proliferation of HCC cells through cell cycle arrest at the G2/M phase and suppresses the migration and invasion of HCC cells by inhibiting epithelial-mesenchymal transition. We also find that CFZ promotes reactive oxygen species production to induce endoplasmic reticulum (ER) stress and activate JNK/p38 MAPK signaling in HCC cells, thus inducing cell death in HCC cells. Moreover, CFZ significantly inhibits HCC cell growth in a xenograft mouse model. Collectively, our study elucidates that CFZ impairs mitochondrial function and activates ER stress and JNK/p38 MAPK signaling, thus inhibiting HCC cell and tumor growth. This indicates that CFZ has the potential as a therapeutic drug for HCC.
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Affiliation(s)
- Yao Deng
- Department of Gastroenterology and Hunan Provincial Clinical Research Center for Metabolic Associated Fatty Liver DiseaseThe Affiliated Nanhua Hospital and Department of Cell Biology and GeneticsSchool of Basic Medical SciencesHengyang Medical SchoolUniversity of South ChinaHengyang421001China
| | - Yujie Li
- School of Laboratory Medicine and Life SciencesWenzhou Medical UniversityWenzhou325035China
- Department of Gastrointestinal SurgeryThe First Affiliated HospitalWenzhou Medical UniversityWenzhou325000China
| | - Mingyue Yang
- School of Laboratory Medicine and Life SciencesWenzhou Medical UniversityWenzhou325035China
| | - Yang Gao
- School of Public HealthFudan UniversityShanghai200032China
| | - Xuling Luo
- Department of Gastroenterology and Hunan Provincial Clinical Research Center for Metabolic Associated Fatty Liver DiseaseThe Affiliated Nanhua Hospital and Department of Cell Biology and GeneticsSchool of Basic Medical SciencesHengyang Medical SchoolUniversity of South ChinaHengyang421001China
| | - Hanbin Chen
- Department of OncologyThe First Affiliated HospitalWenzhou Medical UniversityWenzhou325000China
| | - Meng Guo
- Department of Gastroenterology and Hunan Provincial Clinical Research Center for Metabolic Associated Fatty Liver DiseaseThe Affiliated Nanhua Hospital and Department of Cell Biology and GeneticsSchool of Basic Medical SciencesHengyang Medical SchoolUniversity of South ChinaHengyang421001China
| | - Xuefeng Yang
- Department of Gastroenterology and Hunan Provincial Clinical Research Center for Metabolic Associated Fatty Liver DiseaseThe Affiliated Nanhua Hospital and Department of Cell Biology and GeneticsSchool of Basic Medical SciencesHengyang Medical SchoolUniversity of South ChinaHengyang421001China
| | - Yongzhang Liu
- School of Laboratory Medicine and Life SciencesWenzhou Medical UniversityWenzhou325035China
| | - Jun He
- Department of Gastroenterology and Hunan Provincial Clinical Research Center for Metabolic Associated Fatty Liver DiseaseThe Affiliated Nanhua Hospital and Department of Cell Biology and GeneticsSchool of Basic Medical SciencesHengyang Medical SchoolUniversity of South ChinaHengyang421001China
| | - Bin Lu
- Department of Gastroenterology and Hunan Provincial Clinical Research Center for Metabolic Associated Fatty Liver DiseaseThe Affiliated Nanhua Hospital and Department of Cell Biology and GeneticsSchool of Basic Medical SciencesHengyang Medical SchoolUniversity of South ChinaHengyang421001China
- School of Laboratory Medicine and Life SciencesWenzhou Medical UniversityWenzhou325035China
| | - Naxin Liu
- Department of Gastrointestinal SurgeryThe First Affiliated HospitalWenzhou Medical UniversityWenzhou325000China
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Wang V, Tseng KY, Kuo TT, Huang EYK, Lan KL, Chen ZR, Ma KH, Greig NH, Jung J, Choi HI, Olson L, Hoffer BJ, Chen YH. Attenuating mitochondrial dysfunction and morphological disruption with PT320 delays dopamine degeneration in MitoPark mice. J Biomed Sci 2024; 31:38. [PMID: 38627765 PMCID: PMC11022395 DOI: 10.1186/s12929-024-01025-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 03/22/2024] [Indexed: 04/19/2024] Open
Abstract
BACKGROUND Mitochondria are essential organelles involved in cellular energy production. Changes in mitochondrial function can lead to dysfunction and cell death in aging and age-related disorders. Recent research suggests that mitochondrial dysfunction is closely linked to neurodegenerative diseases. Glucagon-like peptide-1 receptor (GLP-1R) agonist has gained interest as a potential treatment for Parkinson's disease (PD). However, the exact mechanisms responsible for the therapeutic effects of GLP-1R-related agonists are not yet fully understood. METHODS In this study, we explores the effects of early treatment with PT320, a sustained release formulation of the GLP-1R agonist Exenatide, on mitochondrial functions and morphology in a progressive PD mouse model, the MitoPark (MP) mouse. RESULTS Our findings demonstrate that administration of a clinically translatable dose of PT320 ameliorates the reduction in tyrosine hydroxylase expression, lowers reactive oxygen species (ROS) levels, and inhibits mitochondrial cytochrome c release during nigrostriatal dopaminergic denervation in MP mice. PT320 treatment significantly preserved mitochondrial function and morphology but did not influence the reduction in mitochondria numbers during PD progression in MP mice. Genetic analysis indicated that the cytoprotective effect of PT320 is attributed to a reduction in the expression of mitochondrial fission protein 1 (Fis1) and an increase in the expression of optic atrophy type 1 (Opa1), which is known to play a role in maintaining mitochondrial homeostasis and decreasing cytochrome c release through remodeling of the cristae. CONCLUSION Our findings suggest that the early administration of PT320 shows potential as a neuroprotective treatment for PD, as it can preserve mitochondrial function. Through enhancing mitochondrial health by regulating Opa1 and Fis1, PT320 presents a new neuroprotective therapy in PD.
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Affiliation(s)
- Vicki Wang
- Doctoral Degree Program in Translational Medicine, National Defense Medical Center and Academia Sinica, Taipei, 11490, Taiwan
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, 11490, Taiwan
| | - Kuan-Yin Tseng
- Department of Neurological Surgery, Tri-Service General Hospital, Taipei, 11490, Taiwan
- National Defense Medical Center, Taipei, 11490, Taiwan
| | - Tung-Tai Kuo
- Department of Neurological Surgery, Tri-Service General Hospital, Taipei, 11490, Taiwan
- Department of Pharmacology, National Defense Medical Center, Taipei, 11490, Taiwan
| | - Eagle Yi-Kung Huang
- Department of Pharmacology, National Defense Medical Center, Taipei, 11490, Taiwan
| | - Kuo-Lun Lan
- Department of Pathology, Tri-Service General Hospital, Taipei, 11490, Taiwan
| | - Zi-Rong Chen
- Department of Pathology, Tri-Service General Hospital, Taipei, 11490, Taiwan
| | - Kuo-Hsing Ma
- Graduate Institute of Biology and Anatomy, National Defense Medical Center, Taipei, 11490, Taiwan
| | - Nigel H Greig
- Drug Design & Development Section, Translational Gerontology Branch, Intramural Research Program National Institute on Aging, National Institutes of Health (NIH), Baltimore, MD, 21224, USA
| | - Jin Jung
- Peptron, Inc., Yuseong-gu, Daejeon, 34054, Republic of Korea
| | - Ho-Ii Choi
- Peptron, Inc., Yuseong-gu, Daejeon, 34054, Republic of Korea
| | - Lars Olson
- Department of Neuroscience, Karolinska Institute, 171 77, Stockholm, Sweden
| | - Barry J Hoffer
- Department of Neurosurgery, University Hospitals of Cleveland, Case Western Reserve University School of Medicine, Cleveland, OH, 44106, USA
| | - Yuan-Hao Chen
- Department of Neurological Surgery, Tri-Service General Hospital, Taipei, 11490, Taiwan.
- National Defense Medical Center, Taipei, 11490, Taiwan.
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Lei T, Rui Y, Xiaoshuang Z, Jinglan Z, Jihong Z. Mitochondria transcription and cancer. Cell Death Discov 2024; 10:168. [PMID: 38589371 PMCID: PMC11001877 DOI: 10.1038/s41420-024-01926-3] [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: 12/14/2023] [Revised: 03/14/2024] [Accepted: 03/20/2024] [Indexed: 04/10/2024] Open
Abstract
Mitochondria are major organelles involved in several processes related to energy supply, metabolism, and cell proliferation. The mitochondria function is transcriptionally regulated by mitochondria DNA (mtDNA), which encodes the key proteins in the electron transport chain that is indispensable for oxidative phosphorylation (OXPHOS). Mitochondrial transcriptional abnormalities are closely related to a variety of human diseases, such as cardiovascular diseases, and diabetes. The mitochondria transcription is regulated by the mtDNA, mitochondrial RNA polymerase (POLRMT), two transcription factors (TFAM and TF2BM), one transcription elongation (TEFM), and one known transcription termination factor (mTERFs). Dysregulation of these factors directly leads to altered expression of mtDNA in tumor cells, resulting in cellular metabolic reprogramming and mitochondrial dysfunction. This dysregulation plays a role in modulating tumor progression. Therefore, understanding the role of mitochondrial transcription in cancer can have implications for cancer diagnosis, prognosis, and treatment. Targeting mitochondrial transcription or related pathways may provide potential therapeutic strategies for cancer treatment. Additionally, assessing mitochondrial transcriptional profiles or biomarkers in cancer cells or patient samples may offer diagnostic or prognostic information.
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Affiliation(s)
- Tang Lei
- Medical School, Kunming University of Science and Technology, Kunming, China
| | - Yu Rui
- Medical School, Kunming University of Science and Technology, Kunming, China
| | - Zhou Xiaoshuang
- Medical School, Kunming University of Science and Technology, Kunming, China
| | - Zhang Jinglan
- Medical School, Kunming University of Science and Technology, Kunming, China
| | - Zhang Jihong
- Medical School, Kunming University of Science and Technology, Kunming, China.
- Yunnan Province Clinical Research Center for Hematologic Disease, Kunming, China.
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Jia Z, Wang F, Li G, Jiang P, Leng Y, Ke L, Luo L, Gao W. Zinc finger protein 468 up-regulation of TFAM contributes to the malignant growth and cisplatin resistance of breast cancer cells. Cell Div 2024; 19:8. [PMID: 38429817 PMCID: PMC10908137 DOI: 10.1186/s13008-024-00113-1] [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: 09/05/2023] [Accepted: 02/21/2024] [Indexed: 03/03/2024] Open
Abstract
BACKGROUND Because of the progress on the diagnosis and treatment for patients with breast cancer (BC), the overall survival of the patients has been improved. However, a number of BC patients cannot benefit from the existing therapeutic strategies as the essential molecular events triggering the development of BC are not well understood. Previous studies have shown that abnormal expression of zinc finger proteins is involved in the development of various malignancies, whereas it remains largely unclear on their significance during the progression of BC. In this study, we aimed to explore the clinical relevance, cellular function and underlying mechanisms of zinc finger protein 468 (ZNF468) in BC. METHODS The clinical relevance of ZNF468 and TFAM was analyzed based on TCGA database. Overexpression or knockdown of ZNF468 and TFAM were performed by transfecting the cells with overexpression plasmids and siRNAs, respectively. Overexpression and knockdown efficacy was checked by immunoblotting. CCK-8, colony formation, transwell and apoptosis experiments were conducted to check the cellular function of ZNF468 and TFAM. The content of mtDNA was measured by the indicated assay kit. The effects of cisplatin on BC cells were detected by CCK-8 and colony formation assays. The regulation of ZNF468 on TFAM was analyzed by RT-qPCR, immunoblotting, dual luciferase activity and ChIP-qPCR assays. RESULTS ZNF468 was overexpressed in BC patients and inversely correlated with their prognosis. Based on overexpression and knockdown assays, we found that ectopic expression of ZNF468 was essential for the proliferation, growth and migration of BC cells. The expression of ZNF468 also negatively regulated the sensitivity of BC cells to the treatment of cisplatin. Mechanistically, ZNF468 potentiated the transcription activity of TFAM gene via direct binding on its promoter. Lastly, we demonstrated that ZNF468 up-regulation of TFAM was important for the growth, migration and cisplatin resistance in BC cells. CONCLUSION Our study indicates that ZNF468 promotes BC cell growth and migration via transcriptional activation of TFAM. ZNF468/TFAM axis can serve as the diagnostic and therapeutic target, as well as the predictor of cisplatin effectiveness in BC patients.
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Affiliation(s)
- Zhaoyang Jia
- Department of Radiation Oncology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Feng Wang
- Department of Radiation Oncology, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Gongzhuo Li
- Department of Oncology, GuiHang Guiyang Hospital, Guiyang, China
| | - Ping Jiang
- Department of Oncology, GuiHang Guiyang Hospital, Guiyang, China
| | - Yuanxiu Leng
- Department of Oncology, GuiHang Guiyang Hospital, Guiyang, China
| | - Longzhu Ke
- Hubei University of Chinese Medicine, Wuhan, China
| | - Li Luo
- Department of Oncology, GuiHang Guiyang Hospital, Guiyang, China.
| | - Wei Gao
- Department of Radiation Oncology, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai, China.
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Wang H, Cheng W, Hu P, Ling T, Hu C, Chen Y, Zheng Y, Wang J, Zhao T, You Q. Integrative analysis identifies oxidative stress biomarkers in non-alcoholic fatty liver disease via machine learning and weighted gene co-expression network analysis. Front Immunol 2024; 15:1335112. [PMID: 38476236 PMCID: PMC10927810 DOI: 10.3389/fimmu.2024.1335112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 02/08/2024] [Indexed: 03/14/2024] Open
Abstract
Background Non-alcoholic fatty liver disease (NAFLD) is the most common chronic liver disease globally, with the potential to progress to non-alcoholic steatohepatitis (NASH), cirrhosis, and even hepatocellular carcinoma. Given the absence of effective treatments to halt its progression, novel molecular approaches to the NAFLD diagnosis and treatment are of paramount importance. Methods Firstly, we downloaded oxidative stress-related genes from the GeneCards database and retrieved NAFLD-related datasets from the GEO database. Using the Limma R package and WGCNA, we identified differentially expressed genes closely associated with NAFLD. In our study, we identified 31 intersection genes by analyzing the intersection among oxidative stress-related genes, NAFLD-related genes, and genes closely associated with NAFLD as identified through Weighted Gene Co-expression Network Analysis (WGCNA). In a study of 31 intersection genes between NAFLD and Oxidative Stress (OS), we identified three hub genes using three machine learning algorithms: Least Absolute Shrinkage and Selection Operator (LASSO) regression, Support Vector Machine - Recursive Feature Elimination (SVM-RFE), and RandomForest. Subsequently, a nomogram was utilized to predict the incidence of NAFLD. The CIBERSORT algorithm was employed for immune infiltration analysis, single sample Gene Set Enrichment Analysis (ssGSEA) for functional enrichment analysis, and Protein-Protein Interaction (PPI) networks to explore the relationships between the three hub genes and other intersecting genes of NAFLD and OS. The distribution of these three hub genes across six cell clusters was determined using single-cell RNA sequencing. Finally, utilizing relevant data from the Attie Lab Diabetes Database, and liver tissues from NASH mouse model, Western Blot (WB) and Reverse Transcription Quantitative Polymerase Chain Reaction (RT-qPCR) assays were conducted, this further validated the significant roles of CDKN1B and TFAM in NAFLD. Results In the course of this research, we identified 31 genes with a strong association with oxidative stress in NAFLD. Subsequent machine learning analysis and external validation pinpointed two genes: CDKN1B and TFAM, as demonstrating the closest correlation to oxidative stress in NAFLD. Conclusion This investigation found two hub genes that hold potential as novel targets for the diagnosis and treatment of NAFLD, thereby offering innovative perspectives for its clinical management.
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Affiliation(s)
- Haining Wang
- Medical Center for Digestive Diseases, Department of Geriatrics, the Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Wei Cheng
- Medical Center for Digestive Diseases, Department of Geriatrics, the Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Ping Hu
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin, China
| | - Tao Ling
- Medical Center for Digestive Diseases, Department of Geriatrics, the Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Chao Hu
- Medical Center for Digestive Diseases, Department of Geriatrics, the Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yongzhen Chen
- Medical Center for Digestive Diseases, Department of Geriatrics, the Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yanan Zheng
- Medical Center for Digestive Diseases, Department of Geriatrics, the Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Junqi Wang
- Department of Medical Oncology, Shenzhen Traditional Chinese Medicine Hospital, Shenzhen, China
| | - Ting Zhao
- Department of Medical Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Qiang You
- Medical Center for Digestive Diseases, Department of Geriatrics, the Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
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Roy S, Das A, Bairagi A, Das D, Jha A, Srivastava AK, Chatterjee N. Mitochondria act as a key regulatory factor in cancer progression: Current concepts on mutations, mitochondrial dynamics, and therapeutic approach. MUTATION RESEARCH. REVIEWS IN MUTATION RESEARCH 2024; 793:108490. [PMID: 38460864 DOI: 10.1016/j.mrrev.2024.108490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 02/12/2024] [Accepted: 02/22/2024] [Indexed: 03/11/2024]
Abstract
The diversified impacts of mitochondrial function vs. dysfunction have been observed in almost all disease conditions including cancers. Mitochondria play crucial roles in cellular homeostasis and integrity, however, mitochondrial dysfunctions influenced by alterations in the mtDNA can disrupt cellular balance. Many external stimuli or cellular defects that cause cellular integrity abnormalities, also impact mitochondrial functions. Imbalances in mitochondrial activity can initiate and lead to accumulations of genetic mutations and can promote the processes of tumorigenesis, progression, and survival. This comprehensive review summarizes epigenetic and genetic alterations that affect the functionality of the mitochondria, with considerations of cellular metabolism, and as influenced by ethnicity. We have also reviewed recent insights regarding mitochondrial dynamics, miRNAs, exosomes that play pivotal roles in cancer promotion, and the impact of mitochondrial dynamics on immune cell mechanisms. The review also summarizes recent therapeutic approaches targeting mitochondria in anti-cancer treatment strategies.
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Affiliation(s)
- Sraddhya Roy
- Chittaranjan National Cancer Institute, 37 S. P. Mukherjee Road, Kolkata 700026, India
| | - Ananya Das
- Chittaranjan National Cancer Institute, 37 S. P. Mukherjee Road, Kolkata 700026, India
| | - Aparajita Bairagi
- Chittaranjan National Cancer Institute, 37 S. P. Mukherjee Road, Kolkata 700026, India
| | - Debangshi Das
- Chittaranjan National Cancer Institute, 37 S. P. Mukherjee Road, Kolkata 700026, India
| | - Ashna Jha
- Chittaranjan National Cancer Institute, 37 S. P. Mukherjee Road, Kolkata 700026, India
| | - Amit Kumar Srivastava
- CSIR-IICB Translational Research Unit Of Excellence, CN-6, Salt Lake, Sector - V, Kolkata 700091, India
| | - Nabanita Chatterjee
- Chittaranjan National Cancer Institute, 37 S. P. Mukherjee Road, Kolkata 700026, India.
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Xin H, Yu N, Yang Q, Zou X, An Z, Zhou G. Antioxidative polyphenols attenuate pyocyanin-induced ROS production in neuronal HT22 cell lines. RSC Adv 2023; 13:19477-19484. [PMID: 37388142 PMCID: PMC10301880 DOI: 10.1039/d3ra02943c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 06/15/2023] [Indexed: 07/01/2023] Open
Abstract
Pyocyanin, a secreted virulence factor, plays an essential role during Pseudomonas aeruginosa infection. Infection of the central nervous system by this bacterium results in high mortality, but the studies on its mechanism are still rather limited. In this study, we first evaluate the neuronal damage caused by pyocyanin exposure in neuronal HT22 cells. Pyocyanin leads to mitochondrial syndrome and antioxidant defense disruption, therefore increasing intercellular reactive oxygen species (ROS) production. Several typical superior antioxidant polyphenols effectively protect against pyocyanin-induced neuronal cell damage. These findings suggest the neuronal protective activity more or less relies on the structure, rather than the residues. Pre-incubation of catechin activates the essential pathway, indicating inverse correlation of ERK and AMPK phosphorylation participates in this process. These data outline a novel strategy to eliminate intracellular generated ROS. The investigated candidates could be potentially used as therapeutic agents against various ROS-related neurological diseases.
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Affiliation(s)
- Haolin Xin
- Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Department of Neurology, Huanhu Hospital Tianjin China
| | - Ning Yu
- Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Department of Neurology, Huanhu Hospital Tianjin China
| | - Qian Yang
- Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Department of Neurology, Huanhu Hospital Tianjin China
| | - Xuan Zou
- Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Department of Neurology, Huanhu Hospital Tianjin China
| | - Zhongping An
- Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Department of Neurology, Huanhu Hospital Tianjin China
| | - Guanen Zhou
- Tianjin Key Laboratory of Cerebral Vascular and Neurodegenerative Diseases, Department of Neurology, Huanhu Hospital Tianjin China
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Giacomini I, Cortini M, Tinazzi M, Baldini N, Cocetta V, Ragazzi E, Avnet S, Montopoli M. Contribution of Mitochondrial Activity to Doxorubicin-Resistance in Osteosarcoma Cells. Cancers (Basel) 2023; 15:cancers15051370. [PMID: 36900165 PMCID: PMC10000149 DOI: 10.3390/cancers15051370] [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: 01/11/2023] [Revised: 02/09/2023] [Accepted: 02/16/2023] [Indexed: 02/24/2023] Open
Abstract
Osteosarcoma is considered the most common bone tumor affecting children and young adults. The standard of care is chemotherapy; however, the onset of drug resistance still jeopardizes osteosarcoma patients, thus making it necessary to conduct a thorough investigation of the possible mechanisms behind this phenomenon. In the last decades, metabolic rewiring of cancer cells has been proposed as a cause of chemotherapy resistance. Our aim was to compare the mitochondrial phenotype of sensitive osteosarcoma cells (HOS and MG-63) versus their clones when continuously exposed to doxorubicin (resistant cells) and identify alterations exploitable for pharmacological approaches to overcome chemotherapy resistance. Compared with sensitive cells, doxorubicin-resistant clones showed sustained viability with less oxygen-dependent metabolisms, and significantly reduced mitochondrial membrane potential, mitochondrial mass, and ROS production. In addition, we found reduced expression of TFAM gene generally associated with mitochondrial biogenesis. Finally, combined treatment of resistant osteosarcoma cells with doxorubicin and quercetin, a known inducer of mitochondrial biogenesis, re-sensitizes the doxorubicin effect in resistant cells. Despite further investigations being needed, these results pave the way for the use of mitochondrial inducers as a promising strategy to re-sensitize doxorubicin cytotoxicity in patients who do not respond to therapy or reduce doxorubicin side effects.
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Affiliation(s)
- Isabella Giacomini
- Department of Pharmaceutical and Pharmacological Sciences, University of Padua, 35131 Padova, Italy
| | - Margherita Cortini
- Biomedical Science and Technologies and Nanobiotechnology Lab, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
| | - Mattia Tinazzi
- Department of Pharmaceutical and Pharmacological Sciences, University of Padua, 35131 Padova, Italy
| | - Nicola Baldini
- Biomedical Science and Technologies and Nanobiotechnology Lab, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
- Department of Biomedical and Neuromotor Sciences, Alma Mater Studiorum, University of Bologna, 40126 Bologna, Italy
| | - Veronica Cocetta
- Department of Pharmaceutical and Pharmacological Sciences, University of Padua, 35131 Padova, Italy
| | - Eugenio Ragazzi
- Department of Pharmaceutical and Pharmacological Sciences, University of Padua, 35131 Padova, Italy
| | - Sofia Avnet
- Department of Biomedical and Neuromotor Sciences, Alma Mater Studiorum, University of Bologna, 40126 Bologna, Italy
- Correspondence: (S.A.); (M.M.)
| | - Monica Montopoli
- Department of Pharmaceutical and Pharmacological Sciences, University of Padua, 35131 Padova, Italy
- Veneto Institute of Molecular Medicine (VIMM), 35129 Padova, Italy
- Institute of Oncology Research (IOR), Oncology Institute of Southern Switzerland (IOSI), 6500 Bellinzona, Switzerland
- Correspondence: (S.A.); (M.M.)
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Golubickaite I, Ugenskiene R, Bartnykaite A, Poskiene L, Vegiene A, Padervinskis E, Rudzianskas V, Juozaityte E. Mitochondria-Related TFAM and POLG Gene Variants and Associations with Tumor Characteristics and Patient Survival in Head and Neck Cancer. Genes (Basel) 2023; 14:434. [PMID: 36833361 PMCID: PMC9956916 DOI: 10.3390/genes14020434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 02/02/2023] [Accepted: 02/07/2023] [Indexed: 02/11/2023] Open
Abstract
In 2020, 878,348 newly reported cases and 444,347 deaths related to head and neck cancer were reported. These numbers suggest that there is still a need for molecular biomarkers for the diagnosis and prognosis of the disease. In this study, we aimed to analyze mitochondria-related mitochondrial transcription factor A (TFAM) and DNA polymerase γ (POLG) single-nucleotide polymorphisms (SNPs) in the head and neck cancer patient group and evaluate associations between SNPs, disease characteristics, and patient outcomes. Genotyping was performed using TaqMan probes with Real-Time polymerase chain reaction. We found associations between TFAM gene SNPs rs11006129 and rs3900887 and patient survival status. We found that patients with the TFAM rs11006129 CC genotype and non-carriers of the T allele had longer survival times than those with the CT genotype or T-allele carriers. Additionally, patients with the TFAM rs3900887 A allele tended to have shorter survival times than non-carriers of the A allele. Our findings suggest that variants in the TFAM gene may play an important role in head and neck cancer patient survival and could be considered and further evaluated as prognostic biomarkers. However, due to the limited sample size (n = 115), further studies in larger and more diverse cohorts are needed to confirm these findings.
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Affiliation(s)
- Ieva Golubickaite
- Department of Genetics and Molecular Medicine, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania
| | - Rasa Ugenskiene
- Department of Genetics and Molecular Medicine, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania
- Institute of Oncology, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania
| | - Agne Bartnykaite
- Institute of Oncology, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania
| | - Lina Poskiene
- Department of Pathological Anatomy, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania
| | - Aurelija Vegiene
- Department of Otorhinolaryngology, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania
| | - Evaldas Padervinskis
- Department of Otorhinolaryngology, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania
| | - Viktoras Rudzianskas
- Institute of Oncology, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania
| | - Elona Juozaityte
- Institute of Oncology, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania
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Effects of the anti-inflammatory drug celecoxib on cell death signaling in human colon cancer. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2023; 396:1171-1185. [PMID: 36692829 DOI: 10.1007/s00210-023-02399-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 01/16/2023] [Indexed: 01/25/2023]
Abstract
The anti-inflammatory drug celecoxib, the only inhibitor of cyclooxygenase-2 (COX-2) with anticancer activity, is used to treat rheumatoid arthritis and can cause endoplasmic reticulum (ER) stress by inhibiting sarco/ER Ca2 +-ATPase activity in cancer cells. This study aimed to investigate the correlation between celecoxib-induced ER stress and the effects of celecoxib against cell death signaling. Treatment of human colon cancer HCT116 cells with celecoxib reduced their viability and resulted in a loss of mitochondrial membrane potential ([Formula: see text]). Additionally, celecoxib treatment reduced the expression of genes involved in mitochondrial biogenesis and metabolism such as mitochondrial transcription factor A (TFAM) and uncoupling protein 2 (UCP2). Furthermore, celecoxib reduced transmembrane protein 117 (TMEM117), and RNAi-mediated knockdown of TMEM117 reduced TFAM and UCP2 expressions. These results suggest that celecoxib treatment results in the loss of [Formula: see text] by reducing TMEM117 expression and provide insights for the development of novel drugs through TMEM117 expression.
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11
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Wang Y, Wang G, Hong X, Zhao J, Wu D, Chen L, Liu X, Kong D, Huang Q, Xing J, Wang N, Zhao Y. Downregulated mitochondrial transcription factor A enhances mycoplasma infection to promote the metastasis of hepatocellular carcinoma. Cancer Sci 2023; 114:1464-1478. [PMID: 36601865 PMCID: PMC10067405 DOI: 10.1111/cas.15715] [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: 09/07/2022] [Revised: 12/06/2022] [Accepted: 12/30/2022] [Indexed: 01/06/2023] Open
Abstract
Mycoplasma is widespread in various hosts and may cause various diseases in animals. Interestingly, the occurrence of mycoplasma infection was observed in many tumor types. However, the mechanism regulating its infection is far from clear. We unexpectedly found that the knockdown of mitochondrial transcription factor A (TFAM) remarkably enhanced mycoplasma infection in hepatocellular carcinoma (HCC) cells. More importantly, we found that mycoplasma infection facilitated by TFAM knockdown significantly promoted HCC cell metastasis. Mycoplasma infection was further found to be positively correlated with poor prognosis in patients with HCC. Mechanistically, the decreased TFAM expression upregulated the transcription factor Sp1 to increase the expression level of Annexin A2 (ANXA2), which was reported to interact with membrane protein of mycoplasma. Moreover, we found that mycoplasma infection enhanced by the TFAM downregulation promoted HCC migration and invasion by activating the nuclear factor-κB signaling pathway. The downregulation of TFAM enhanced mycoplasma infection in HCC cells and promoted HCC cell metastasis. Our study contributes to the understanding of the pathological role of mycoplasma infection and provides supporting evidence that targeting TFAM could be a potential strategy for the treatment of HCC with mycoplasma infection.
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Affiliation(s)
- Yinping Wang
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China
| | - Gang Wang
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China
| | - Xin Hong
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China
| | - Jing Zhao
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China
| | - Dan Wu
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China
| | - Lin Chen
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China
| | - Xiaoli Liu
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China
| | - Deyu Kong
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China
| | - Qichao Huang
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China
| | - Jinliang Xing
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China
| | - Nan Wang
- Department of General Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Yilin Zhao
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China.,Department of Clinical Oncology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
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12
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Tian Y, Fan Z, Liu S, Wu Y, Liu S. Identifying Mitochondrial Transcription Factor A As a Potential Biomarker for the Carcinogenesis and Prognosis of Prostate Cancer. Genet Test Mol Biomarkers 2023; 27:5-11. [PMID: 36719981 PMCID: PMC9902047 DOI: 10.1089/gtmb.2022.0141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Aims: Mitochondrial functional transformation contributes to the carcinogenesis of the prostate by meeting the metabolic needs of cancer cells. Mitochondrial transcription factor A (TFAM) is a pivotal regulator that maintains homeostasis of mitochondrial function. However, its role in prostate carcinogenesis has not been well elucidated. Materials and Methods: In the present study, we analyzed the expression of TFAM in normal prostate tissue and prostate cancer using public databases; a prostate-tissue chip was used to verify the results. The expression of TFAM in normal cells and in prostate cancer cells was determined by western blotting analysis. We knocked down TFAM in the prostate cancer cell line PC3 using a specific shRNA to explore the potential effects of TFAM in prostatic carcinogenesis. Results: We observed higher expression levels of TFAM in prostate cancer tissue than in normal prostate tissue and tumor adjacent normal tissues. A receiver operating characteristic curve was drawn that demonstrated the diagnostic efficacy of using TFAM expression for prostate cancer prognoses. Elevated levels of TFAM may indicate poorer overall survival in prostate cancer patients. Western blotting assays also showed that relative to the normal prostatic epithelial cell line RWPE-1, prostate cancer cell lines PC3 and DU145 expressed more TFAM protein. Furthermore, knockdown of TFAM inhibited the colony-formation capability of PC3 cells. Conclusion: Collectively, these results suggest that TFAM promotes carcinogenesis of the prostate, and may constitute a marker to be used in the diagnosis and prognosis of prostate cancer.
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Affiliation(s)
- Yaqiong Tian
- The Third Central Hospital of Tianjin, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China
- Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Zhijuan Fan
- The Third Central Hospital of Tianjin, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China
- Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Shuang Liu
- The Third Central Hospital of Tianjin, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China
- Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Yujing Wu
- The Third Central Hospital of Tianjin, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China
- Artificial Cell Engineering Technology Research Center, Tianjin, China
| | - Shuye Liu
- The Third Central Hospital of Tianjin, Tianjin, China
- Tianjin Key Laboratory of Extracorporeal Life Support for Critical Diseases, Tianjin, China
- Artificial Cell Engineering Technology Research Center, Tianjin, China
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13
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Kumar S, Tripathi J, Maurya DK, Nuwad J, Gautam S. Anti-proliferative effect and underlying mechanism of ethoxy-substituted phylloquinone (vitamin K1 derivative) from Spinacia oleracea leaf and enhancement of its extractability using radiation technology. 3 Biotech 2022; 12:265. [PMID: 36091087 PMCID: PMC9452621 DOI: 10.1007/s13205-022-03264-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 07/17/2022] [Indexed: 11/01/2022] Open
Abstract
In our previous studies, a novel antimutagenic compound, 2-ethoxy-3-(3,7,11,15-tetramethylhexadec-2-ethyl) naphthaquinone-1,4-dione (ethoxy-substituted phylloquinone; ESP) from spinach was characterized and mechanism contributing to its antimutagenicity was deduced. In the current study, anti-proliferative activity of ESP was assessed in lung cancer (A549) cells using MTT [3-(4,5-dimethylthiazole-2yl)-2,5-diphenyl tetrazolium bromide], clonogenic assays and cell cycle analysis. ESP treatment showed selective cytotoxicity against lung cancer cells and no cytotoxicity in normal lung (WI38) cells. Cell cycle analysis revealed that ESP treatment arrests A549 cell population in G2-M phase. In-silico analysis indicated positive drug-likeness features of ESP. Molecular docking showed H-bonding and hydrophobic interactions between ESP and B-DNA dodecamer residues at minor groove. SWATH-MS (Sequential Window Acquisition of All Theoretical Mass Spectra) based proteomic analysis indicated down-regulation of proteins involved in EGFR signaling, NEDDylation and other metabolic pathways and up-regulation of tumor suppressor (STAT1 and NDRG1) proteins. Treatment of spinach powder with gamma radiation (5-20 kGy) from cobalt (Co-60) enhanced the extractability of ESP up to 4.4-fold at the highest dose of 20 kGy. Scanning electron microscopy of spinach powder displayed decrease in smoothness and compactness with increase in radiation dose attributing to its enhanced extractability. Increase in the extractability of ESP with increasing radiation doses as measured by fluorescence intensity and dry weight basis was strongly correlated. Nonetheless, radiation treatment did not affect the functionality of ESP in terms of anti-proliferative and antimutagenic activities. Current findings thus highlight broad spectrum bioactivity of ESP from spinach, its underlying mechanism and applicability of radiation technology in enhancing extractability. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-022-03264-6.
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Affiliation(s)
- Sanjeev Kumar
- Food Technology Division, Bhabha Atomic Research Centre, Mumbai, 400 085 India
| | - Jyoti Tripathi
- Food Technology Division, Bhabha Atomic Research Centre, Mumbai, 400 085 India
| | - Dharmendra K. Maurya
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Mumbai, 400 085 India
- Homi Bhabha National Institute, Mumbai, 400 094 India
| | - Jitendra Nuwad
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai, 400 085 India
| | - Satyendra Gautam
- Food Technology Division, Bhabha Atomic Research Centre, Mumbai, 400 085 India
- Homi Bhabha National Institute, Mumbai, 400 094 India
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14
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Wang W, Sun H, Ma X, Zhu T, Zhang H. Circ_0002476 regulates cell growth, invasion, and mtDNA damage in non-small cell lung cancer by targeting miR-1182/TFAM axis. Thorac Cancer 2022; 13:2867-2878. [PMID: 36056804 PMCID: PMC9575079 DOI: 10.1111/1759-7714.14631] [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: 07/04/2022] [Revised: 08/15/2022] [Accepted: 08/16/2022] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Many circular RNAs (circRNAs) have been identified as potential targets for cancer therapy. However, the role of circ_0002476 in non-small cell lung cancer (NSCLC) progression has not been explored. METHODS The expression levels of circ_0002476, microRNA (miR)-1182, and mitochondrial transcription factor A (TFAM) were detected by quantitative real-time polymerase chain reaction. Cell functions were measured by cell counting kit 8 assay, EdU assay, colony formation assay, flow cytometry and transwell assay. Mitochondrial DNA (mtDNA) damage was assessed by measuring mtDNA copy number and transcript levels of ND1 and ATP6. Protein expression was examined by western blot. The interaction between miR-1182 and circ_0002476 or TFAM was detected by dual-luciferase reporter assay and RNA pull-down assay. Animal experiments were performed to explore circ_0002476 role in vivo. Exosomes (Exs) were extracted and identified by transmission electron microscopy and nanoparticle tracking analysis. RESULTS Circ_0002476 was overexpressed in NSCLC tissues and cells. Circ_0002476 knockdown suppressed NSCLC cell proliferation and invasion, while promoted apoptosis and mtDNA damage. Circ_0002476 could sponge miR-1182, and miR-1182 inhibitor reversed the influence induced by circ_0002476 knockdown. Moreover, TFAM was targeted by miR-1182, and miR-1182 hindered NSCLC cell progression by regulating TFAM. Additionally, circ_0002476 silencing could reduce NSCLC tumor growth by miR-1182/TFAM. Further analyzed showed that Exs were involved in the transport of circ_0002476 between cells. CONCLUSION Taken together, our findings suggested that circ_0002476 might be a potential molecular target for NSCLC treatment.
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Affiliation(s)
- Weijie Wang
- Department of Thoracic Surgery, The Affiliated Xiangshan Hospital of Wenzhou Medial University, Ningbo, China
| | - Haiting Sun
- Department of Thoracic Surgery, The Affiliated Xiangshan Hospital of Wenzhou Medial University, Ningbo, China
| | - Xuan Ma
- Department of Thoracic Surgery, The Affiliated Xiangshan Hospital of Wenzhou Medial University, Ningbo, China
| | - Ting Zhu
- Department of Thoracic Surgery, The Affiliated Xiangshan Hospital of Wenzhou Medial University, Ningbo, China
| | - Haina Zhang
- Department of Thoracic Surgery, The Affiliated Xiangshan Hospital of Wenzhou Medial University, Ningbo, China
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15
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Wagner A, Kosnacova H, Chovanec M, Jurkovicova D. Mitochondrial Genetic and Epigenetic Regulations in Cancer: Therapeutic Potential. Int J Mol Sci 2022; 23:ijms23147897. [PMID: 35887244 PMCID: PMC9321253 DOI: 10.3390/ijms23147897] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 07/12/2022] [Accepted: 07/14/2022] [Indexed: 02/01/2023] Open
Abstract
Mitochondria are dynamic organelles managing crucial processes of cellular metabolism and bioenergetics. Enabling rapid cellular adaptation to altered endogenous and exogenous environments, mitochondria play an important role in many pathophysiological states, including cancer. Being under the control of mitochondrial and nuclear DNA (mtDNA and nDNA), mitochondria adjust their activity and biogenesis to cell demands. In cancer, numerous mutations in mtDNA have been detected, which do not inactivate mitochondrial functions but rather alter energy metabolism to support cancer cell growth. Increasing evidence suggests that mtDNA mutations, mtDNA epigenetics and miRNA regulations dynamically modify signalling pathways in an altered microenvironment, resulting in cancer initiation and progression and aberrant therapy response. In this review, we discuss mitochondria as organelles importantly involved in tumorigenesis and anti-cancer therapy response. Tumour treatment unresponsiveness still represents a serious drawback in current drug therapies. Therefore, studying aspects related to genetic and epigenetic control of mitochondria can open a new field for understanding cancer therapy response. The urgency of finding new therapeutic regimens with better treatment outcomes underlines the targeting of mitochondria as a suitable candidate with new therapeutic potential. Understanding the role of mitochondria and their regulation in cancer development, progression and treatment is essential for the development of new safe and effective mitochondria-based therapeutic regimens.
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Affiliation(s)
- Alexandra Wagner
- Department of Genetics, Cancer Research Institute, Biomedical Research Center, Slovak Academy of Sciences, 845 05 Bratislava, Slovakia; (A.W.); (H.K.); (M.C.)
- Department of Simulation and Virtual Medical Education, Faculty of Medicine, Comenius University, 811 08 Bratislava, Slovakia
| | - Helena Kosnacova
- Department of Genetics, Cancer Research Institute, Biomedical Research Center, Slovak Academy of Sciences, 845 05 Bratislava, Slovakia; (A.W.); (H.K.); (M.C.)
- Department of Simulation and Virtual Medical Education, Faculty of Medicine, Comenius University, 811 08 Bratislava, Slovakia
| | - Miroslav Chovanec
- Department of Genetics, Cancer Research Institute, Biomedical Research Center, Slovak Academy of Sciences, 845 05 Bratislava, Slovakia; (A.W.); (H.K.); (M.C.)
| | - Dana Jurkovicova
- Department of Genetics, Cancer Research Institute, Biomedical Research Center, Slovak Academy of Sciences, 845 05 Bratislava, Slovakia; (A.W.); (H.K.); (M.C.)
- Correspondence:
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16
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TFAM downregulation promotes autophagy and ESCC survival through mtDNA stress-mediated STING pathway. Oncogene 2022; 41:3735-3746. [PMID: 35750756 DOI: 10.1038/s41388-022-02365-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 05/15/2022] [Accepted: 05/26/2022] [Indexed: 11/08/2022]
Abstract
The dynamics of mitochondrial biogenesis regulation is critical in maintaining cellular homeostasis for immune regulation and tumor prevention. Here, we report that mitochondrial biogenesis disruption through TFAM reduction significantly impairs mitochondrial function, induces autophagy, and promotes esophageal squamous cell carcinoma (ESCC) growth. We found that TFAM protein reduction promotes mitochondrial DNA (mtDNA) release into the cytosol, induces cytosolic mtDNA stress, subsequently activates the cGAS-STING signaling pathway, thereby stimulating autophagy and ESCC growth. STING depletion or mtDNA degradation by DNase I abrogates mtDNA stress response, attenuates autophagy, and decreases the growth of TFAM depleted cells. In addition, autophagy inhibitor also ameliorates mitochondrial dysfunction-induced activation of the cGAS-STING signaling pathway and ESCC growth. In conclusion, our results indicate that mtDNA stress induced by mitochondria biogenesis perturbation activates the cGAS-STING pathway and autophagy to promote ESCC growth, revealing an underappreciated therapeutic strategy for ESCC.
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17
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Liu Y, Lan L, Li Y, Lu J, He L, Deng Y, Fei M, Lu JW, Shangguan F, Lu JP, Wang J, Wu L, Huang K, Lu B. N-glycosylation stabilizes MerTK and promotes hepatocellular carcinoma tumor growth. Redox Biol 2022; 54:102366. [PMID: 35728303 PMCID: PMC9214875 DOI: 10.1016/j.redox.2022.102366] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 06/07/2022] [Accepted: 06/08/2022] [Indexed: 11/25/2022] Open
Abstract
Despite the evidences of elevated expression of Mer tyrosine kinase (MerTK) in multiple human cancers, mechanisms underlying the oncogenic roles of MerTK in hepatocellular carcinoma (HCC) remains undefined. We explored the functional effects of MerTK and N-Glycosylated MerTK on HCC cell survival and tumor growth. Here, we show that MerTK ablation increases reactive oxygen species (ROS) production and promotes the switching from glycolytic metabolism to oxidative phosphorylation in HCC cells, thus suppressing HCC cell proliferation and tumor growth. MerTK is N-glycosylated in HCC cells at asparagine 294 and 454 that stabilizes MerTK to promote oncogenic transformation. Moreover, we observed that nuclear located non-glycosylated MerTK is indispensable for survival of HCC cells under stress. Pathologically, tissue microarray (TMA) data indicate that MerTK is a pivotal prognostic factor for HCC. Our data strongly support the roles of MerTK N-glycosylation in HCC tumorigenesis and suggesting N-glycosylation inhibition as a potential HCC therapeutic strategy. MerTK promotes the switching from oxidative phosphorylation to glycolytic metabolism in HCC cells. MerTK is N-glycosylated in HCC cells at asparagine 294 and 454 that stabilizes MerTK to promote HCC tumor growth. The nuclear located non-glycosylated MerTK is indispensable for survival of HCC cells under stress. MerTK is a pivotal prognostic factor for HCC and its N-glycosylation inhibition is a potential HCC therapeutic strategy.
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Affiliation(s)
- Yongzhang Liu
- Protein Quality Control and Diseases Laboratory, Zhejiang Provincial Key Laboratory of Medical Genetics, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Linhua Lan
- Protein Quality Control and Diseases Laboratory, Zhejiang Provincial Key Laboratory of Medical Genetics, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China; Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China
| | - Yujie Li
- Protein Quality Control and Diseases Laboratory, Zhejiang Provincial Key Laboratory of Medical Genetics, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China; Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Jing Lu
- Department of Laboratory Medicine, The First People's Hospital of Jingzhou, The First Affiliated Hospital of Yangtze University, Jingzhou, Hubei, 434000, China
| | - Lipeng He
- Protein Quality Control and Diseases Laboratory, Zhejiang Provincial Key Laboratory of Medical Genetics, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China; Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Yao Deng
- Protein Quality Control and Diseases Laboratory, Zhejiang Provincial Key Laboratory of Medical Genetics, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China; Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Mingming Fei
- Protein Quality Control and Diseases Laboratory, Zhejiang Provincial Key Laboratory of Medical Genetics, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Jun-Wan Lu
- Protein Quality Control and Diseases Laboratory, Zhejiang Provincial Key Laboratory of Medical Genetics, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Fugen Shangguan
- Protein Quality Control and Diseases Laboratory, Zhejiang Provincial Key Laboratory of Medical Genetics, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China; Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China
| | - Ju-Ping Lu
- Protein Quality Control and Diseases Laboratory, Zhejiang Provincial Key Laboratory of Medical Genetics, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Jiaxin Wang
- Protein Quality Control and Diseases Laboratory, Zhejiang Provincial Key Laboratory of Medical Genetics, Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China; Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Liang Wu
- Department of Pathology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China
| | - Kate Huang
- Department of Pathology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China
| | - Bin Lu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China; Attardi Institute of Mitochondrial Biomedicine, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China.
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18
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Tran PX, Inoue J, Harada H, Inazawa J. Potential for reversing miR-634-mediated cytoprotective processes to improve efficacy of chemotherapy against oral squamous cell carcinoma. Mol Ther Oncolytics 2022; 24:897-908. [PMID: 35571376 PMCID: PMC9073396 DOI: 10.1016/j.omto.2022.02.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Accepted: 02/11/2022] [Indexed: 01/04/2023] Open
Abstract
For advanced oral squamous cell carcinoma (OSCC), increasing sensitivity to chemotherapy is a major challenge in improving treatment outcomes, and targeting cytoprotective processes that lead to the chemotherapy resistance of cancer cells may be therapeutically promising. Tumor-suppressive microRNAs (miRNAs) can target multiple cancer-promoting genes concurrently and are thus expected to be useful seeds for cancer therapeutics. We revealed that miR-634-mediated targeting of multiple cytoprotective process-related genes, including cellular inhibitor of apoptosis protein 1 (cIAP1), can effectively increase cisplatin (CDDP)-induced cytotoxicity and overcome CDDP resistance in OSCC cells. The combination of topical treatment with miR-634 ointment and administration of CDDP was synergistically effective against OSCC tumor growth in a xenograft mouse model. Furthermore, the expression of miR-634 target genes is frequently upregulated in primary OSCC tumors. Our study suggests that reversing miR-634-mediated cytoprotective processes activated in cancer cells is a potentially useful strategy to improve CDDP efficacy against advanced OSCC.
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Affiliation(s)
- Phuong Xuan Tran
- Department of Molecular Cytogenetics, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.,Department of Oral and Maxillofacial Surgery, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Jun Inoue
- Department of Molecular Cytogenetics, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Hiroyuki Harada
- Department of Oral and Maxillofacial Surgery, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Johji Inazawa
- Department of Molecular Cytogenetics, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.,Bioresource Research Center, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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19
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Sarlak S, Lalou C, Sant'Anna-Silva ACB, Mafhouf W, De Luise M, Rousseau B, Izotte J, Claverol S, Lacombe D, Nikitopoulou E, Yang M, Oliveira M, Frezza C, Gasparre G, Rezvani HR, Amoedo ND, Rossignol R. Lung Tumor Growth Promotion by Tobacco-Specific Nitrosamines Involves the β2-Adrenergic Receptors-Dependent Stimulation of Mitochondrial REDOX Signaling. Antioxid Redox Signal 2022; 36:525-549. [PMID: 34715750 DOI: 10.1089/ars.2020.8259] [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] [Indexed: 11/12/2022]
Abstract
Aims: Lung cancer is the leading cause of cancer death worldwide, and tobacco smoking is a recognized major risk factor for lung tumor development. We analyzed the effect of tobacco-specific nitrosamines (TSNAs) on human lung adenocarcinoma metabolic reprogramming, an emergent hallmark of carcinogenesis. Results: A series of in vitro and in vivo bioenergetic, proteomic, metabolomic, and tumor biology studies were performed to analyze changes in lung cancer cell metabolism and the consequences for hallmarks of cancer, including tumor growth, cancer cell invasion, and redox signaling. The findings revealed that nicotine-derived nitrosamine ketone (NNK) stimulates mitochondrial function and promotes lung tumor growth in vivo. These malignant properties were acquired from the induction of mitochondrial biogenesis induced by the upregulation and activation of the beta-2 adrenergic receptors (β2-AR)-cholinergic receptor nicotinic alpha 7 subunit (CHRNAα7)-dependent nitrosamine canonical signaling pathway. The observed NNK metabolic effects were mediated by TFAM overexpression and revealed a key role for mitochondrial reactive oxygen species and Annexin A1 in tumor growth promotion. Conversely, ectopic expression of the mitochondrial antioxidant enzyme manganese superoxide dismutase rescued the reprogramming and malignant metabolic effects of exposure to NNK and overexpression of TFAM, underlining the link between NNK and mitochondrial redox signaling in lung cancer. Innovation: Our findings describe the metabolic changes caused by NNK in a mechanistic framework for understanding how cigarette smoking causes lung cancer. Conclusion: Mitochondria play a role in the promotion of lung cancer induced by tobacco-specific nitrosamines. Antioxid. Redox Signal. 36, 525-549.
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Affiliation(s)
- Saharnaz Sarlak
- Bordeaux University, Bordeaux, France
- INSERM U1211, Bordeaux, France
| | - Claude Lalou
- Bordeaux University, Bordeaux, France
- INSERM U1211, Bordeaux, France
| | | | - Walid Mafhouf
- Bordeaux University, Bordeaux, France
- INSERM U1045, Bordeaux, France
| | - Monica De Luise
- Department of Medical and Surgical Sciences (DIMEC), Unit of Medical Genetics, Center for Applied Biomedical Research (CRBA), University of Bologna, Bologna, Italy
| | - Benoît Rousseau
- Bordeaux University, Bordeaux, France
- Transgenic Animal Facility A2, University of Bordeaux, Bordeaux, France
| | - Julien Izotte
- Bordeaux University, Bordeaux, France
- Transgenic Animal Facility A2, University of Bordeaux, Bordeaux, France
| | - Stéphane Claverol
- Bordeaux University, Bordeaux, France
- Proteomics Facility, Functional Genomics Center (CGFB), Bordeaux, France
| | - Didier Lacombe
- Bordeaux University, Bordeaux, France
- INSERM U1211, Bordeaux, France
| | - Efterpi Nikitopoulou
- Medical Research Council Cancer Unit, Hutchison/MRC Research Centre, University of Cambridge, Cambridge, United Kingdom
| | - Ming Yang
- Medical Research Council Cancer Unit, Hutchison/MRC Research Centre, University of Cambridge, Cambridge, United Kingdom
| | - Marcus Oliveira
- Institute of Medical Biochemistry, Federal University, Rio de Janeiro, Brazil
| | - Christian Frezza
- Medical Research Council Cancer Unit, Hutchison/MRC Research Centre, University of Cambridge, Cambridge, United Kingdom
| | - Giuseppe Gasparre
- Department of Medical and Surgical Sciences (DIMEC), Unit of Medical Genetics, Center for Applied Biomedical Research (CRBA), University of Bologna, Bologna, Italy
| | | | - Nivea Dias Amoedo
- CELLOMET, Functional Genomics Center of Bordeaux (CGFB), Bordeaux, France
| | - Rodrigue Rossignol
- Bordeaux University, Bordeaux, France
- INSERM U1211, Bordeaux, France
- CELLOMET, Functional Genomics Center of Bordeaux (CGFB), Bordeaux, France
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20
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Lee YG, Park DH, Chae YC. Role of Mitochondrial Stress Response in Cancer Progression. Cells 2022; 11:cells11050771. [PMID: 35269393 PMCID: PMC8909674 DOI: 10.3390/cells11050771] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 02/13/2022] [Accepted: 02/17/2022] [Indexed: 02/07/2023] Open
Abstract
Mitochondria are subcellular organelles that are a hub for key biological processes, such as bioenergetic, biosynthetic, and signaling functions. Mitochondria are implicated in all oncogenic processes, from malignant transformation to metastasis and resistance to chemotherapeutics. The harsh tumor environment constantly exposes cancer cells to cytotoxic stressors, such as nutrient starvation, low oxygen, and oxidative stress. Excessive or prolonged exposure to these stressors can cause irreversible mitochondrial damage, leading to cell death. To survive hostile microenvironments that perturb mitochondrial function, cancer cells activate a stress response to maintain mitochondrial protein and genome integrity. This adaptive mechanism, which is closely linked to mitochondrial function, enables rapid adjustment and survival in harsh environmental conditions encountered during tumor dissemination, thereby promoting cancer progression. In this review, we describe how the mitochondria stress response contributes to the acquisition of typical malignant traits and highlight the potential of targeting the mitochondrial stress response as an anti-cancer therapeutic strategy.
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Affiliation(s)
- Yu Geon Lee
- Department of Biological Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Korea; (Y.G.L.); (D.H.P.)
- Korea Food Research Institute, Wanju 55365, Korea
| | - Do Hong Park
- Department of Biological Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Korea; (Y.G.L.); (D.H.P.)
| | - Young Chan Chae
- Department of Biological Sciences, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Korea; (Y.G.L.); (D.H.P.)
- Correspondence: ; Tel.: +82-52-217-2524 or +82-52-217-2638
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21
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Mu J, Tian Y, Liu F, Wang Z, Tan R, Zhang B, Quan P, Zhang H, Yang J, Yuan P. Mitochondrial transcription factor B1 promotes the progression of hepatocellular carcinoma via enhancing aerobic glycolysis. J Cell Commun Signal 2021; 16:223-238. [PMID: 34825289 DOI: 10.1007/s12079-021-00658-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 11/09/2021] [Indexed: 12/27/2022] Open
Abstract
Mitochondrial dysfunctions play crucial roles in the carcinogenesis of various human cancers. However, the molecular mechanisms leading to mitochondrial dysfunction and thus cancer progression remains largely unclear. TFB1M (mitochondrial transcription factor B1) is a mitochondrial DNA-binding protein that activates the transcription of mitochondrial DNA. Our bioinformatics analysis indicated a significant up-regulation of TFB1M in hepatocellular carcinoma (HCC). Here, we investigated its clinical significance and biological functions in this malignancy. Here, we found that TFB1M was significantly upregulated in HCC cells probably due to decreased miR-130a-3p expression. High TFB1M expression was positively associated with poor patient survival in HCC. TFB1M contributes to HCC growth and metastasis by promoting cell cycle progression, epithelia-mesenchymal transition (EMT), and inhibiting cell apoptosis. Mechanistically, the metabolic switch from oxidative phosphorylation to glycolysis contributed to the promotion of tumor growth and metastasis by TFB1M overexpression in HCC cells. In summary, we demonstrate that TFB1M plays a crucial oncogenic role in HCC progression, indicating TFB1M as a promising prognostic marker and therapeutic target in HCC.
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Affiliation(s)
- Jiao Mu
- Department of Pain Treatment, Tangdu Hospital, Air Force Military Medical University, 1 Xinsi Road, Xi'an, 710038, Shaanxi, China.,Department of Hematology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.,Department of Hematology, Xi'an Central Hospital, Xi'an, 710003, Shaanxi, China
| | - Yiyuan Tian
- Physiology Divion of Yan'an University Medical College, Yan'an, 716000, Shaanxi, China
| | - Fengzhou Liu
- Aerospace Clinical Medical Center, School of Aerospace Medicine, Air Force Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Zijun Wang
- Battalion of the First Regiment of Cadets of Basic Medicine, Air Force Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Rui Tan
- Department of Orthopaedics, Xijing Hospital, Air Force Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Bei Zhang
- Department of Pain Treatment, Tangdu Hospital, Air Force Military Medical University, 1 Xinsi Road, Xi'an, 710038, Shaanxi, China
| | - Penghe Quan
- Department of Urology, Xijing Hospital, Air Force Military Medical University, Xi'an, 710032, Shaanxi, China
| | - Hongxin Zhang
- Department of Pain Treatment, Tangdu Hospital, Air Force Military Medical University, 1 Xinsi Road, Xi'an, 710038, Shaanxi, China.
| | - Jingyue Yang
- Department of Oncology, Xijing Hospital, Air Force Military Medical University, 169 Changle West Road, Xi'an, 710032, Shaanxi, China.
| | - Peng Yuan
- Department of Pain Treatment, Tangdu Hospital, Air Force Military Medical University, 1 Xinsi Road, Xi'an, 710038, Shaanxi, China. .,State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Air Force Military Medical University, Xi'an, 710032, Shaanxi, China.
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22
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Golubickaite I, Ugenskiene R, Cepaite J, Ziliene E, Inciura A, Poskiene L, Juozaityte E. Mitochondria-related TFAM gene variants and their effects on patients with cervical cancer. Biomed Rep 2021; 15:106. [PMID: 34765190 PMCID: PMC8576402 DOI: 10.3892/br.2021.1482] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 10/13/2021] [Indexed: 12/26/2022] Open
Abstract
Cervical cancer is the fourth most common type of cancer in women worldwide, with high incidence and mortality rates, particularly in developing countries. There are human papillomavirus vaccines and cytological screening programs available; however, there are no molecular markers that would aid the prognosis of the course of the disease or prediction of the outcomes of the patients. The aim of the present study was to investigate the associations between single nucleotide polymorphisms (SNPs) of the mitochondrial transcription factor A (TFAM) gene (rs11006132, rs11006129, rs1937, rs16912174, rs16912202 and rs3900887), and the clinical parameters and tumor phenotype of patients with cervical cancer. DNA isolated from patients with cervical cancer (n=172) was used for genotyping using Real-Time PCR using TaqMan probes. It was revealed that the TFAM rs3900887 TT and AT genotypes were associated with a lower risk of developing larger tumors. The results showed an association between the rs3900887 SNP and tumor phenotype, indicating TFAM rs3900887 as a potential biomarker for tumor size in cervical cancer.
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Affiliation(s)
- Ieva Golubickaite
- Department of Genetics and Molecular Medicine, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania
| | - Rasa Ugenskiene
- Department of Genetics and Molecular Medicine, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania.,Institute of Oncology, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania
| | - Juste Cepaite
- Institute of Oncology, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania
| | - Egle Ziliene
- Institute of Oncology, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania
| | - Arturas Inciura
- Institute of Oncology, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania
| | - Lina Poskiene
- Department of Pathological Anatomy, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania
| | - Elona Juozaityte
- Institute of Oncology, Lithuanian University of Health Sciences, 44307 Kaunas, Lithuania
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23
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Chang H, Li J, Luo Y, Wu B, Yuan C, Geng X. TFB2M activates aerobic glycolysis in hepatocellular carcinoma cells through the NAD + /SIRT3/HIF-1α signaling. J Gastroenterol Hepatol 2021; 36:2978-2988. [PMID: 33982328 DOI: 10.1111/jgh.15548] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 04/25/2021] [Accepted: 05/11/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND AND AIM Increased aerobic glycolysis has been well-known as a hallmark of cancer, which is closely related to mitochondrial dysfunction. TFB2M (mitochondrial transcription factor B2) is a core mitochondrial transcription factor, which has been shown by us to play an oncogenic role in hepatocellular carcinoma (HCC). However, whether TFB2M contributes to the aerobic glycolysis in HCC cells remains unexplored. METHODS The role and underlying molecular mechanisms of TFB2M in the regulation of aerobic glycolysis in HCC cells were systematically investigated by in vitro cell glucose metabolism and metabolomics analyses. Besides, the effects of TFB2M-regulated aerobic glycolysis in the growth and metastasis of HCC cells were also explored. RESULTS Here, we show that TFB2M markedly enhanced the reprogramming of glucose metabolism from oxidative phosphorylation to aerobic glycolysis mainly through two mechanisms. On the one hand, TFB2M increased the expressions of glycolytic genes GAPDH, LDHA, GLUT1, and HK2. On the other hand, TFB2M decreased the expression of peroxisome proliferator-activated receptor gamma coactivator 1 alpha (PGC-1α), a critical regulator of mitochondrial respiration. Mechanistically, TFB2M regulates the upregulation of glycolytic genes and downregulation of PGC-1α mainly through NAD+ /SIRT3/HIF-1α signaling. Additionally, we found that TFBM2 promoted the progression of HCC cells through HIF-1α-regulated reprogramming of glucose metabolism. CONCLUSIONS Our findings indicate that TFB2M serves as a critical glucose metabolic reprogramming mechanism in tumorigenesis, which could be used as potential therapeutic target in HCC.
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Affiliation(s)
- Hulin Chang
- Department of Hepatobiliary Surgery, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Jibin Li
- State Key Laboratory of Cancer Biology and Experimental Teaching Center of Basic Medicine, Fourth Military Medical University, Xi'an, China
| | - Ying Luo
- Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China
| | - Bing Wu
- Department of Geriatrics, The 940th Hospital of Joint Logistics Support Force of Chinese People's Liberation Army, Lanzhou, China
| | - Chong Yuan
- Department of Clinical Laboratory, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Xilin Geng
- Department of Hepatobiliary Surgery, Shaanxi Provincial People's Hospital, Xi'an, China
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24
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Yang S, He X, Zhao J, Wang D, Guo S, Gao T, Wang G, Jin C, Yan Z, Wang N, Wang Y, Zhao Y, Xing J, Huang Q. Mitochondrial transcription factor A plays opposite roles in the initiation and progression of colitis-associated cancer. Cancer Commun (Lond) 2021; 41:695-714. [PMID: 34160895 PMCID: PMC8360642 DOI: 10.1002/cac2.12184] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 03/22/2021] [Accepted: 06/14/2021] [Indexed: 01/01/2023] Open
Abstract
Background Mitochondria are key regulators in cell proliferation and apoptosis. Alterations in mitochondrial function are closely associated with inflammation and tumorigenesis. This study aimed to investigate whether mitochondrial transcription factor A (TFAM), a key regulator of mitochondrial DNA transcription and replication, is involved in the initiation and progression of colitis‐associated cancer (CAC). Methods TFAM expression was examined in tissue samples of inflammatory bowel diseases (IBD) and CAC by immunohistochemistry. Intestinal epithelial cell (IEC)‐specific TFAM‐knockout mice (TFAM△IEC) and colorectal cancer (CRC) cells with TFAM knockdown or overexpression were used to evaluate the role of TFAM in colitis and the initiation and progression of CAC. The underlying mechanisms of TFAM were also explored by analyzing mitochondrial respiration function and biogenesis. Results The expression of TFAM was downregulated in active IBD and negatively associated with the disease activity. The downregulation of TFAM in IECs was induced by interleukin‐6 in a signal transducer and activator of transcription 3 (STAT3)/miR‐23b‐dependent manner. In addition, TFAM knockout impaired IEC turnover to promote dextran sulfate sodium (DSS)‐induced colitis in mice. Of note, TFAM knockout increased the susceptibility of mice to azoxymethane/DSS‐induced CAC and TFAM overexpression protected mice from intestinal inflammation and colitis‐associated tumorigenesis. By contrast, TFAM expression was upregulated in CAC tissues and contributed to cell growth. Furthermore, it was demonstrated that β‐catenin induced the upregulation of TFAM through c‐Myc in CRC cells. Mechanistically, TFAM promoted the proliferation of both IECs and CRC cells by increasing mitochondrial biogenesis and activity. Conclusions TFAM plays a dual role in the initiation and progression of CAC, providing a novel understanding of CAC pathogenesis.
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Affiliation(s)
- Shirong Yang
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, P. R. China.,Department of General Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, P. R. China
| | - Xianli He
- Department of General Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, P. R. China
| | - Jing Zhao
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, P. R. China
| | - Dalin Wang
- Department of Hepatobiliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, P. R. China
| | - Shanshan Guo
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, P. R. China
| | - Tian Gao
- Department of General Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, P. R. China
| | - Gang Wang
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, P. R. China
| | - Chao Jin
- Department of General Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, P. R. China
| | - Zeyu Yan
- Department of General Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, P. R. China
| | - Nan Wang
- Department of General Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, P. R. China
| | - Yongxing Wang
- Department of Respiratory Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, P. R. China
| | - Yilin Zhao
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, P. R. China
| | - Jinliang Xing
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, P. R. China
| | - Qichao Huang
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, Shaanxi, 710032, P. R. China
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25
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Elevated TEFM expression promotes growth and metastasis through activation of ROS/ERK signaling in hepatocellular carcinoma. Cell Death Dis 2021; 12:325. [PMID: 33771980 PMCID: PMC7997956 DOI: 10.1038/s41419-021-03618-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 02/15/2021] [Accepted: 02/22/2021] [Indexed: 12/19/2022]
Abstract
TEFM (transcription elongation factor of mitochondria) has been identified as a novel nuclear-encoded transcription elongation factor in the transcription of mitochondrial genome. Our bioinformatics analysis of TCGA data revealed an aberrant over-expression of TEFM in hepatocellular carcinoma (HCC). We analyzed its biological effects and clinical significance in this malignancy. TEFM expression was analyzed by quantitative real-time PCR, western blot, and immunohistochemistry analysis in HCC tissues and cell lines. The effects of TEFM on HCC cell growth and metastasis were determined by cell proliferation, colony formation, flow cytometric cell cycle and apoptosis, migration, and invasion assays. TEFM expression was significantly increased in HCC tissues mainly caused by down-regulation of miR-194-5p. Its increased expression is correlated with poor prognosis of HCC patients. TEFM promoted HCC growth and metastasis both in vitro and in vivo by promoting G1–S cell transition, epithelial-to-mesenchymal transition (EMT), and suppressing cell apoptosis. Mechanistically, TEFM exerts its tumor growth and metastasis promoting effects at least partly through increasing ROS production and subsequently by activation of ERK signaling. Our study suggests that TEFM functions as a vital oncogene in promoting growth and metastasis in HCC and may contribute to the targeted therapy of HCC.
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26
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Su Z, Han S, Jin Q, Zhou N, Lu J, Shangguan F, Yu S, Liu Y, Wang L, Lu J, Li Q, Cai L, Wang C, Tian X, Chen L, Zheng W, Lu B. Ciclopirox and bortezomib synergistically inhibits glioblastoma multiforme growth via simultaneously enhancing JNK/p38 MAPK and NF-κB signaling. Cell Death Dis 2021; 12:251. [PMID: 33674562 PMCID: PMC7935936 DOI: 10.1038/s41419-021-03535-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 02/14/2021] [Accepted: 02/17/2021] [Indexed: 02/05/2023]
Abstract
Ciclopirox (CPX) is an antifungal drug that has recently been reported to act as a potential anticancer drug. However, the effects and underlying molecular mechanisms of CPX on glioblastoma multiforme (GBM) remain unknown. Bortezomib (BTZ) is the first proteasome inhibitor-based anticancer drug approved to treat multiple myeloma and mantle cell lymphoma, as BTZ exhibits toxic effects on diverse tumor cells. Herein, we show that CPX displays strong anti-tumorigenic activity on GBM. Mechanistically, CPX inhibits GBM cellular migration and invasion by reducing N-Cadherin, MMP9 and Snail expression. Further analysis revealed that CPX suppresses the expression of several key subunits of mitochondrial enzyme complex, thus leading to the disruption of mitochondrial oxidative phosphorylation (OXPHOS) in GBM cells. In combination with BTZ, CPX promotes apoptosis in GBM cells through the induction of reactive oxygen species (ROS)-mediated c-Jun N-terminal kinase (JNK)/p38 mitogen-activated protein kinase (MAPK) signaling. Moreover, CPX and BTZ synergistically activates nuclear factor kappa B (NF-κB) signaling and induces cellular senescence. Our findings suggest that a combination of CPX and BTZ may serve as a novel therapeutic strategy to enhance the anticancer activity of CPX against GBM.
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Affiliation(s)
- Zhipeng Su
- Department of Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China
- Protein Quality Control and Diseases Laboratory, Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Shengnan Han
- Protein Quality Control and Diseases Laboratory, Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
- Department of Pathology, The Second Hospital of Jiaxing, Jiaxing University, Jiaxing, 314000, China
| | - Qiumei Jin
- Protein Quality Control and Diseases Laboratory, Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Ningning Zhou
- Protein Quality Control and Diseases Laboratory, Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Junwan Lu
- Protein Quality Control and Diseases Laboratory, Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Fugen Shangguan
- Protein Quality Control and Diseases Laboratory, Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Shiyi Yu
- Protein Quality Control and Diseases Laboratory, Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Yongzhang Liu
- Protein Quality Control and Diseases Laboratory, Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Lu Wang
- Protein Quality Control and Diseases Laboratory, Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Jianglong Lu
- Department of Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China
| | - Qun Li
- Department of Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China
| | - Lin Cai
- Department of Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China
| | - Chengde Wang
- Department of Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China
| | - Xiaohe Tian
- Huaxi MR Research Center (HMRRC), Department of Radiology, Functional and molecular imaging Key Laboratory of Sichuan Province, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Lingyan Chen
- Protein Quality Control and Diseases Laboratory, Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China
| | - Weiming Zheng
- Department of Neurosurgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China.
| | - Bin Lu
- Protein Quality Control and Diseases Laboratory, Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, 325035, Zhejiang, China.
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Ye XS, Tian WJ, Liu XZ, Zhou M, Zeng DQ, Lin T, Wang GH, Yao XS, Chen HF. Lignans and phenylpropanoids from the roots of Ficus hirta and their cytotoxic activities. Nat Prod Res 2021; 36:3840-3849. [PMID: 33648391 DOI: 10.1080/14786419.2021.1892099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
One undescribed lignan, one new natural product, along with fourteen known compounds, were isolated from the roots of Ficus hirta. The structures of the isolates were elucidated by comprehensive spectroscopic technologies, including UV, IR, HRESIMS, and NMR. The absolute configuration of 1 was determined by comparison of experimental and calculated ECD data. The cytotoxicity of all the compounds against HeLa and HepG2 cell lines was evaluated and compound 7 showed considerable cytotoxic effect towards HepG2 cells. Also, the apoptotic effect of 7 on HepG2 cells and the effect of 7 on the key proteins (p-JNK and p-p38) in MAPK (Mitogen-activated protein kinases) pathways were studied by flow cytometry and western blotting experiment. As a result, compound 7 induced the apoptosis of HepG2 cells, and dose-dependently increased the phosphorylation of JNK and p38. Thus, 7 might trigger HepG2 cells apoptosis via JNK/p38 MAPK signaling pathway.
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Affiliation(s)
- Xian-Sheng Ye
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, People's Republic of China
| | - Wen-Jing Tian
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, People's Republic of China
| | - Xiang-Zhong Liu
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, People's Republic of China
| | - Mi Zhou
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, People's Republic of China
| | - De-Quan Zeng
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, People's Republic of China
| | - Ting Lin
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, People's Republic of China
| | - Guang-Hui Wang
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, People's Republic of China
| | - Xin-Sheng Yao
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, People's Republic of China.,Institute of Traditional Chinese Medicine & Natural Products, Jinan University, Guangzhou, People's Republic of China
| | - Hai-Feng Chen
- Fujian Provincial Key Laboratory of Innovative Drug Target, School of Pharmaceutical Sciences, Xiamen University, Xiamen, People's Republic of China
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28
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IL-6 Reduces Mitochondrial Replication, and IL-6 Receptors Reduce Chronic Inflammation in NAFLD and Type 2 Diabetes. Int J Mol Sci 2021; 22:ijms22041774. [PMID: 33579000 PMCID: PMC7916777 DOI: 10.3390/ijms22041774] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 02/04/2021] [Accepted: 02/08/2021] [Indexed: 12/15/2022] Open
Abstract
Interleukin (IL)-6 family cytokines act through a receptor complex with gp130 subunits. IL-6 is a pleiotropic cytokine that regulates inflammation and liver regeneration. Mitochondria are the first to respond to stress and adapt their dynamics in conditions of damage. In this regard, the study aimed to investigate the role of the IL-6 cytokine family (sIL-6Ra, gp130/sIL-6Rb, and IL-11) in the regulation of mitochondrial dynamics in the liver in obese patients and to assess the contribution of these cytokines to the pathogenesis of type 2 diabetes mellitus (T2DM). We studied 134 obese patients with and without T2DM and 41 healthy donors. We found that increasing the concentration of sIL-6Ra and gp130/sIL-6Rb protected against carbohydrate disorders in obese patients and prevented non-alcoholic fatty liver disease (NAFLD) progression in obese patients. An increase in plasma IL-6 levels is associated with decreased, mitochondrial transcription factor A (TFAM) protein production in liver biopsies in obese patients with and without T2DM. Replication, transcription, and division processes in liver biopsy were reduced in patients with T2DM. Inflammatory processes stimulate liver cell apoptosis in obese patients with T2DM. The increase in IL-11 levels is associated with decreased pro-apoptotic Bcl-2-associated X protein (BAX) protein production in obese patients with and without T2DM.
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Yu X, Wang X, Wang X, Zhou Y, Li Y, Wang A, Wang T, An Y, Sun W, Du J, Tong X, Wang Y. TEOA Inhibits Proliferation and Induces DNA Damage of Diffuse Large B-Cell Lymphoma Cells Through Activation of the ROS-Dependent p38 MAPK Signaling Pathway. Front Pharmacol 2020; 11:554736. [PMID: 33013393 PMCID: PMC7500465 DOI: 10.3389/fphar.2020.554736] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 08/18/2020] [Indexed: 11/26/2022] Open
Abstract
Diffuse large B-cell lymphoma (DLBCL) is the most common subtype of lymphoma, accounting for approximately 30% to 40% of non-Hodgkin’s lymphomas (NHL). The administration of rituximab significantly improved the outcomes of DLBCL; however, the unavoidable development of resistance limits the long-term efficacy. Therefore, a new generation of less toxic drugs with higher chemotherapy response is required to prevent or reverse chemoresistance. TEOA is a pentacyclic triterpenoid compound isolated from the roots of Actinidia eriantha. Studies have confirmed that TEOA has significant cytotoxicity on gastrointestinal cancer cells. However, there are no relevant reports on DLBCL cells. In this study, we investigated the potential molecular mechanism of the anticancer activity of TEOA in DLBCL cells. The results demonstrated that TEOA inhibited proliferation and induced apoptosis in time-and dose-dependent manners. TEOA induced reactive oxygen species (ROS) generation, which was reversed by N-acetyl cysteine (NAC). TEOA induced DNA damage, increased the level of γ-H2AX, and the phosphorylation of CHK1 and CHK2. In addition, TEOA induced the activation of the p38 MAPK pathway and pretreated with p38 inhibitor SB20358 or ROS scavenger could block TEOA-induced DNA damage. Taken together, these results suggest that ROS mediated activation of the p38 MAPK signal pathway plays an important role in initiating TEOA-induced DNA damage.
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Affiliation(s)
- Xingxing Yu
- Clinical Research Institute, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China.,Department of Hematology, Fuyang Hospital of Anhui Medical University, Fuyang, China
| | - Xin Wang
- Clinical Research Institute, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Xu Wang
- School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou, China.,Department of Laboratory Medicine, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Yi Zhou
- Clinical Research Institute, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China.,Wangjiangshan Institute, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Yanchun Li
- The Second Clinical Medical School of Zhejiang Chinese Medical University, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China
| | - Aiwei Wang
- Department of Hematology, The First People's Hospital of Fuyang, Hangzhou, China
| | - Tongtong Wang
- Wangjiangshan Institute, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Yihan An
- Clinical Research Institute, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Weidong Sun
- Clinical Research Institute, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Jing Du
- Department of Laboratory Medicine, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Xiangmin Tong
- Clinical Research Institute, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China.,School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou, China.,The Second Clinical Medical School of Zhejiang Chinese Medical University, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.,Phase I Clinical Research Center, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Ying Wang
- Phase I Clinical Research Center, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
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30
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Wan J, Wu X, Chen H, Xia X, Song X, Chen S, Lu X, Jin J, Su Q, Cai D, Liu B, Li B. Aging-induced aberrant RAGE/PPARα axis promotes hepatic steatosis via dysfunctional mitochondrial β oxidation. Aging Cell 2020; 19:e13238. [PMID: 32936538 PMCID: PMC7576254 DOI: 10.1111/acel.13238] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 07/18/2020] [Accepted: 08/16/2020] [Indexed: 02/06/2023] Open
Abstract
Non‐alcoholic fatty liver disease (NAFLD), characterized by an increase in hepatic triglyceride (TG) content, is the most common liver disease worldwide. Aging has been shown to increase susceptibility to NAFLD; however, the underlying molecular mechanism remains poorly understood. In the present study, we examined hepatic TG content and gene expression profiles in body weight‐matched young (3 months old), middle‐aged (10 months old), and old (20 months old) C57BL/6 mice and found that TGs were markedly accumulated while mitochondrial β‐oxidation‐related genes, including PPARα, were downregulated in the liver of old mice. In addition, advanced glycation end product receptor (RAGE), a key regulator of glucose metabolism, was upregulated in the old mice. Mechanistically, suppression of RAGE upregulated PPARα and its downstream target genes, which in turn led to reduced TG retention. Finally, we found that hepatic RAGE expression was increased in aging patients, a finding that correlated with decreased PPARα levels. Taken together, our findings demonstrate that the upregulation of RAGE may play a critical role in aging‐associated liver steatosis.
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Affiliation(s)
- Jian Wan
- Department of Emergency and Critical Care Medicine Shanghai Pudong New Area People's Hospital Shanghai University of Medicine and Health Sciences Shanghai China
| | - Xiangsong Wu
- Department of General Surgery XinHua Hospital Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Hanbei Chen
- Department of Endocrinology XinHua Hospital Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Xinyi Xia
- Department of Endocrinology and Metabolism Shanghai Jiao Tong University Affiliated Sixth People's Hospital Shanghai China
| | - Xi Song
- Department of Emergency and Critical Care Medicine Shanghai Pudong New Area People's Hospital Shanghai University of Medicine and Health Sciences Shanghai China
| | - Song Chen
- Department of Emergency and Critical Care Medicine Shanghai Pudong New Area People's Hospital Shanghai University of Medicine and Health Sciences Shanghai China
| | - Xinyuan Lu
- Department of Emergency and Critical Care Medicine Shanghai Pudong New Area People's Hospital Shanghai University of Medicine and Health Sciences Shanghai China
| | - Jie Jin
- Department of Endocrinology XinHua Hospital Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Qing Su
- Department of Endocrinology XinHua Hospital Shanghai Jiao Tong University School of Medicine Shanghai China
| | - Dongsheng Cai
- Department of Molecular Pharmacology Diabetes Research Center Institute of Aging Albert Einstein College of Medicine Bronx NY USA
| | - Bin Liu
- Hubei Key Laboratory for Kidney Disease Pathogenesis and Intervention Hubei Polytechnic University School of Medicine Huangshi China
| | - Bo Li
- Department of Endocrinology XinHua Hospital Shanghai Jiao Tong University School of Medicine Shanghai China
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31
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Marchetti P, Fovez Q, Germain N, Khamari R, Kluza J. Mitochondrial spare respiratory capacity: Mechanisms, regulation, and significance in non-transformed and cancer cells. FASEB J 2020; 34:13106-13124. [PMID: 32808332 DOI: 10.1096/fj.202000767r] [Citation(s) in RCA: 142] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 06/25/2020] [Accepted: 07/21/2020] [Indexed: 01/07/2023]
Abstract
Mitochondrial metabolism must constantly adapt to stress conditions in order to maintain bioenergetic levels related to cellular functions. This absence of proper adaptation can be seen in a wide array of conditions, including cancer. Metabolic adaptation calls on mitochondrial function and draws on the mitochondrial reserve to meet increasing needs. Among mitochondrial respiratory parameters, the spare respiratory capacity (SRC) represents a particularly robust functional parameter to evaluate mitochondrial reserve. We provide an overview of potential SRC mechanisms and regulation with a focus on its particular significance in cancer cells.
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Affiliation(s)
- Philippe Marchetti
- Institut de Recherche contre le Cancer de Lille, CNRS, INSERM, CHU Lille, UMR9020 - UMR-S 1277 - Canther, Université Lille, Lille Cedex, France.,Banque de Tissus, CHU Lille, Lille Cedex, France
| | - Quentin Fovez
- Institut de Recherche contre le Cancer de Lille, CNRS, INSERM, CHU Lille, UMR9020 - UMR-S 1277 - Canther, Université Lille, Lille Cedex, France
| | - Nicolas Germain
- Institut de Recherche contre le Cancer de Lille, CNRS, INSERM, CHU Lille, UMR9020 - UMR-S 1277 - Canther, Université Lille, Lille Cedex, France.,Banque de Tissus, CHU Lille, Lille Cedex, France
| | - Raeeka Khamari
- Institut de Recherche contre le Cancer de Lille, CNRS, INSERM, CHU Lille, UMR9020 - UMR-S 1277 - Canther, Université Lille, Lille Cedex, France
| | - Jérôme Kluza
- Institut de Recherche contre le Cancer de Lille, CNRS, INSERM, CHU Lille, UMR9020 - UMR-S 1277 - Canther, Université Lille, Lille Cedex, France
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32
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Vozáriková V, Kunová N, Bauer JA, Frankovský J, Kotrasová V, Procházková K, Džugasová V, Kutejová E, Pevala V, Nosek J, Tomáška Ľ. Mitochondrial HMG-Box Containing Proteins: From Biochemical Properties to the Roles in Human Diseases. Biomolecules 2020; 10:biom10081193. [PMID: 32824374 PMCID: PMC7463775 DOI: 10.3390/biom10081193] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 08/11/2020] [Accepted: 08/13/2020] [Indexed: 12/14/2022] Open
Abstract
Mitochondrial DNA (mtDNA) molecules are packaged into compact nucleo-protein structures called mitochondrial nucleoids (mt-nucleoids). Their compaction is mediated in part by high-mobility group (HMG)-box containing proteins (mtHMG proteins), whose additional roles include the protection of mtDNA against damage, the regulation of gene expression and the segregation of mtDNA into daughter organelles. The molecular mechanisms underlying these functions have been identified through extensive biochemical, genetic, and structural studies, particularly on yeast (Abf2) and mammalian mitochondrial transcription factor A (TFAM) mtHMG proteins. The aim of this paper is to provide a comprehensive overview of the biochemical properties of mtHMG proteins, the structural basis of their interaction with DNA, their roles in various mtDNA transactions, and the evolutionary trajectories leading to their rapid diversification. We also describe how defects in the maintenance of mtDNA in cells with dysfunctional mtHMG proteins lead to different pathologies at the cellular and organismal level.
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Affiliation(s)
- Veronika Vozáriková
- Department of Genetics, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovičova 6, Mlynská dolina B-1, 842 15 Bratislava, Slovakia; (V.V.); (J.F.); (K.P.); (V.D.)
| | - Nina Kunová
- Institute of Molecular Biology, Slovak Academy of Sciences, Dúbravská cesta 21, 845 51 Bratislava, Slovakia; (N.K.); (J.A.B.); (V.K.); (E.K.); (V.P.)
| | - Jacob A. Bauer
- Institute of Molecular Biology, Slovak Academy of Sciences, Dúbravská cesta 21, 845 51 Bratislava, Slovakia; (N.K.); (J.A.B.); (V.K.); (E.K.); (V.P.)
| | - Ján Frankovský
- Department of Genetics, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovičova 6, Mlynská dolina B-1, 842 15 Bratislava, Slovakia; (V.V.); (J.F.); (K.P.); (V.D.)
| | - Veronika Kotrasová
- Institute of Molecular Biology, Slovak Academy of Sciences, Dúbravská cesta 21, 845 51 Bratislava, Slovakia; (N.K.); (J.A.B.); (V.K.); (E.K.); (V.P.)
| | - Katarína Procházková
- Department of Genetics, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovičova 6, Mlynská dolina B-1, 842 15 Bratislava, Slovakia; (V.V.); (J.F.); (K.P.); (V.D.)
| | - Vladimíra Džugasová
- Department of Genetics, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovičova 6, Mlynská dolina B-1, 842 15 Bratislava, Slovakia; (V.V.); (J.F.); (K.P.); (V.D.)
| | - Eva Kutejová
- Institute of Molecular Biology, Slovak Academy of Sciences, Dúbravská cesta 21, 845 51 Bratislava, Slovakia; (N.K.); (J.A.B.); (V.K.); (E.K.); (V.P.)
| | - Vladimír Pevala
- Institute of Molecular Biology, Slovak Academy of Sciences, Dúbravská cesta 21, 845 51 Bratislava, Slovakia; (N.K.); (J.A.B.); (V.K.); (E.K.); (V.P.)
| | - Jozef Nosek
- Department of Biochemistry, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovičova 6, Mlynská dolina CH-1, 842 15 Bratislava, Slovakia;
| | - Ľubomír Tomáška
- Department of Genetics, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovičova 6, Mlynská dolina B-1, 842 15 Bratislava, Slovakia; (V.V.); (J.F.); (K.P.); (V.D.)
- Correspondence: ; Tel.: +421-2-90149-433
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33
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Pandey AK, Verma S. Combination drug therapy for multimodal treatment of cancer by targeting mitochondrial transcriptional pathway: An in-silico approach. Med Hypotheses 2020; 143:110075. [PMID: 32652430 DOI: 10.1016/j.mehy.2020.110075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 06/23/2020] [Accepted: 07/01/2020] [Indexed: 12/26/2022]
Abstract
Cancer pathologies are deeply associated with mitochondrial dysfunction. TFAM, transcription factor A of mitochondria plays eminent role in transcription and replication of mtDNA to synthesize different mitochondrial proteins, has been reported to have elevated levels during malignancy and can be a compelling target of the disease. We hypothesize that violacein and silver nanoparticles, as a dyad drug system, can structurally bind and inhibit TFAM at the interface of TFAM-DNA complex during replication and thus can hinder majority of pathways contributing to cancer proliferation. It is evident from our molecular docking analysis of violacein and silver nanoparticles with the TFAM-DNA complex which gave resulting negative binding energy of -8.836 kcal/mol for violacein with inhibition constant (Ki value) of 1.51 μM and high binding score of 9518 for silver nanoparticle in the DNA interacting cavity of TFAM. Hence, our hypothesis of employing violacein and silver nanoparticle for cancer treatment by TFAM inhibition seems highly promising and further in-vitro and in-vivo studies are extremely demanded in this concern.
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Affiliation(s)
- Anand Kumar Pandey
- Department of Biotechnology Engineering, Institute of Engineering and Technology, Bundelkhand University, Jhansi 284128, India.
| | - Shalja Verma
- Department of Biotechnology Engineering, Institute of Engineering and Technology, Bundelkhand University, Jhansi 284128, India; Department of Biochemical Engineering and Biotechnology. Indian Institute of Technology, Hauz Khas, New Delhi 110016, India
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34
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Geng X, Geng Z, Li H, Zhang Y, Li J, Chang H. Over-expression of TFB2M facilitates cell growth and metastasis via activating ROS-Akt-NF-κB signalling in hepatocellular carcinoma. Liver Int 2020; 40:1756-1769. [PMID: 32174027 DOI: 10.1111/liv.14440] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 03/10/2020] [Accepted: 03/11/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND & AIMS Human TFB2M (mitochondrial transcription factor B2) is a key regulator of mitochondria transcription. Our bioinformatic analysis based on the cancer genome atlas (TCGA) data revealed an aberrant over-expression of TFB2M in hepatocellular carcinoma (HCC). However, the functional roles of TFB2M in tumourigenesis remains unexplored, including HCC. METHODS The expression and clinical significance of TFB2M were evaluated by qRT-PCR and western blot analysis. The biological effects and underlying mechanisms of TFB2M in HCC were determined by cell proliferation, colony formation, cell cycle, apoptosis, migration and invasion assays. RESULTS TFB2M was commonly up-regulated in HCC mainly because of the down-regulation of miR101-3p, which significantly correlated with poor survival of HCC patients. Functional experiments revealed that TFB2M significantly promoted HCC cell proliferation, migration and invasion, while inhibited apoptosis in vitro and promoted xenograft tumourigenesis and lung metastasis in nude mice models in vivo. Mechanistically, increased production of reactive oxygen species (ROS) and subsequently activated Akt/NF-κB signalling was found to be involved in the promotion of growth and metastasis by TFB2M in HCC cells. CONCLUSIONS These findings suggest that TFB2M plays a pivotal oncogenic role in HCC cells through activating ROS-Akt-NF-κB signalling pathway.
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Affiliation(s)
- Xilin Geng
- Department of Hepatobiliary Surgery, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Zhimin Geng
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Hui Li
- Department of Hepatobiliary Surgery, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Yu Zhang
- Department of Hepatobiliary Surgery, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Jibin Li
- State Key Laboratory of Cancer Biology and Experimental, Teaching Center of Basic Medicine, Fourth Military Medical University, Xi'an, China
| | - Hulin Chang
- Department of Hepatobiliary Surgery, Shaanxi Provincial People's Hospital, Xi'an, China
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35
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Cui X, Zhou D, Du Q, Wan P, Dong K, Hou H, Geller DA. MicroRNA200a enhances antitumor effects in combination with doxorubicin in hepatocellular carcinoma. Transl Oncol 2020; 13:100805. [PMID: 32563177 PMCID: PMC7305444 DOI: 10.1016/j.tranon.2020.100805] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 05/08/2020] [Accepted: 05/11/2020] [Indexed: 12/25/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is often treated with doxorubicin. MicroRNAs have been shown to have important regulatory roles in cancer and serve as a target in chemoresistance. In this study, we investigated the effects of specific microRNA-200a (miR-200a) on HCC tumor cell growth and effect of doxorubicin-mediated cytotoxicity. Our results show miR-200a is downregulated in human HCC and HCC tumor cell lines. Increasing miR-200a expression inhibited HCC growth and synergized with the antitumor effects of doxorubicin. Inhibiting endogenous miR-200a promoted tumor growth and chemotherapeutic resistance. Increasing miR-200a expression inhibited tumor metabolism (ATP production, mitochondrial respiration, glycolysis), while inhibition of endogenous miR-200a reversed these effects. MiR-200a expression also increased autophagy and synergized with doxorubicin-mediated cytotoxicity. This study identifies a novel role of miR-200a in potentiating doxorubicin-mediated therapeutic effects in HCC.
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Affiliation(s)
- Xiao Cui
- Department of Surgery, The Second Hospital of Anhui Medical University, Hefei, Anhui, China; Department of Surgery, University of Pittsburgh, Pittsburgh, USA
| | - Dachen Zhou
- Department of Surgery, The Second Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Qiang Du
- Department of Surgery, University of Pittsburgh, Pittsburgh, USA
| | - Peiqi Wan
- Department of Infectious Diseases, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Kun Dong
- Department of Pediatric Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Hui Hou
- Department of Surgery, The Second Hospital of Anhui Medical University, Hefei, Anhui, China.
| | - David A Geller
- Department of Surgery, University of Pittsburgh, Pittsburgh, USA.
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36
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Zhu Y, Xu J, Hu W, Wang F, Zhou Y, Xu W, Gong W, Shao L. TFAM depletion overcomes hepatocellular carcinoma resistance to doxorubicin and sorafenib through AMPK activation and mitochondrial dysfunction. Gene 2020; 753:144807. [PMID: 32461017 DOI: 10.1016/j.gene.2020.144807] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 05/06/2020] [Accepted: 05/21/2020] [Indexed: 02/06/2023]
Abstract
Mitochondrial transcription factor A (TFAM), which is required for mitochondrial DNA (mtDNA) transcription, has been linked to metabolic changes that contribute to tumorigenesis and chemoresistance. In this work, we investigated the expression pattern and role of TFAM in hepatocellular carcinoma (HCC). TFAM expression level is similar in 18 out of 20 paired normal liver and HCC tissues with only 2 HCC tissues showing 1.8-fold increase in TFAM. Similar phenomenon was observed in HCC cell lines compared to normal liver lines. Interestingly, TFAM expression is upregulated in resistant HCC cells regardless of the differential TFAM expression level in their parental lines and mechanism of resistance. TFAM depletion led to inhibition of growth and survival but not migration, and sensitization to doxorubicin and sorafenib treatment, through AMPK activation, reduction of nucleoside triphosphates and mitochondrial respiration in HCC cells. In addition, we demonstrated that resistant HCC cell lines were more sensitive to TFAM inhibition than parental lines, and this might be due to the increased mitochondrial biogenesis in resistant HCC cell lines. Our work reveals the preferential role of TFAM in HCC cell response to standard of care drugs, which suggests a potential sensitizing therapeutic target for HCC treatment.
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Affiliation(s)
- Ying Zhu
- Department of Gastroenterology, Shenzhen Hospital of Southern Medical University, Shenzhen, Guangdong, China
| | - Jianguo Xu
- Department of Liver Disease Center, Shenzhen Hospital of Southern Medical University, Shenzhen, Guangdong, China
| | - Wei Hu
- Department of Gastroenterology, Shenzhen Hospital of Southern Medical University, Shenzhen, Guangdong, China
| | - Fang Wang
- Department of Gastroenterology, Shenzhen Hospital of Southern Medical University, Shenzhen, Guangdong, China
| | - Yan Zhou
- Information Management Section, Bethune International Peace Hospital, Shijiazhuang City, Hebei Province, China
| | - Wen Xu
- Department of Gastroenterology, Shenzhen Hospital of Southern Medical University, Shenzhen, Guangdong, China
| | - Wei Gong
- Department of Gastroenterology, Shenzhen Hospital of Southern Medical University, Shenzhen, Guangdong, China.
| | - Lichun Shao
- Department of Gastroenterology, The Air Force Hospital From Northern Theatre of PLA, Shenyang, Liaoning, China.
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37
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Jing Y, Chavez V, Khatwani N, Ban Y, Espejo AP, Chen X, Merchan JR. In vivo antitumor activity by dual stromal and tumor-targeted oncolytic measles viruses. Cancer Gene Ther 2020; 27:910-922. [PMID: 32231231 DOI: 10.1038/s41417-020-0171-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 02/27/2020] [Accepted: 03/10/2020] [Indexed: 12/12/2022]
Abstract
The tumor stroma acts as a barrier that limits the efficacy of systemically administered oncolytic viruses (OV). We previously demonstrated that stromal-selective, retargeted oncolytic measles viruses (MVs) delay in vivo tumor progression. To further characterize the contribution of stromal targeting to MV's overall in vivo efficacy in an experimental cancer model, a dual targeted oncolytic measles virus (MV-CD46-muPA) able to simultaneously infect murine stromal (via murine uPAR) and human cancer (via CD46) cells was developed. MV-CD46-muPA infected, replicated, and induced cytotoxicity in both murine and human cancer cells. Viral infection was successfully transferred from stromal to tumor cells in vitro, leading to tumor cell oncolysis. Systemic administration of MV-CD46-muPA led to improved antitumor effects in colon (HT-29) cancer xenografts compared to vehicle or CD46 only targeted MVs. These effects were associated with improved tumor viral deposition, increased apoptosis, and decreases in murine stromal endothelial cells and fibroblasts. MV-CD46-muPA modulated cell cycle, survival, proliferation, and metabolic pathways, as determined by functional proteomic analysis of treated tumors. The above findings further validate the concept that dual stromal and tumor cell viral targeting enhances the therapeutic effects of systemically administered OVs and support further preclinical and clinical development of stromal directed virotherapies.
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Affiliation(s)
- Yuqi Jing
- Division of Medical Oncology, University of Miami Miller School of Medicine and Sylvester Comprehensive Cancer Center, Miami, FL, USA
| | - Valery Chavez
- Division of Medical Oncology, University of Miami Miller School of Medicine and Sylvester Comprehensive Cancer Center, Miami, FL, USA
| | - Natasha Khatwani
- Division of Medical Oncology, University of Miami Miller School of Medicine and Sylvester Comprehensive Cancer Center, Miami, FL, USA.,Sheila and David Fuente Graduate Program in Cancer Biology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Yuguang Ban
- Division of Biostatistics and Bioinformatics, Sylvester Comprehensive Cancer, Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Andrea P Espejo
- Division of Internal Medicine, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Xi Chen
- Division of Biostatistics and Bioinformatics, Sylvester Comprehensive Cancer, Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Jaime R Merchan
- Division of Medical Oncology, University of Miami Miller School of Medicine and Sylvester Comprehensive Cancer Center, Miami, FL, USA.
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38
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Dong Z, Pu L, Cui H. Mitoepigenetics and Its Emerging Roles in Cancer. Front Cell Dev Biol 2020; 8:4. [PMID: 32039210 PMCID: PMC6989428 DOI: 10.3389/fcell.2020.00004] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 01/08/2020] [Indexed: 12/11/2022] Open
Abstract
In human beings, there is a ∼16,569 bp circular mitochondrial DNA (mtDNA) encoding 22 tRNAs, 12S and 16S rRNAs, 13 polypeptides that constitute the central core of ETC/OxPhos complexes, and some non-coding RNAs. Recently, mtDNA has been shown to have some covalent modifications such as methylation or hydroxylmethylation, which play pivotal epigenetic roles in mtDNA replication and transcription. Post-translational modifications of proteins in mitochondrial nucleoids such as mitochondrial transcription factor A (TFAM) also emerge as essential epigenetic modulations in mtDNA replication and transcription. Post-transcriptional modifications of mitochondrial RNAs (mtRNAs) including mt-rRNAs, mt-tRNAs and mt-mRNAs are important epigenetic modulations. Besides, mtDNA or nuclear DNA (n-DNA)-derived non-coding RNAs also play important roles in the regulation of translation and function of mitochondrial genes. These evidences introduce a novel concept of mitoepigenetics that refers to the study of modulations in the mitochondria that alter heritable phenotype in mitochondria itself without changing the mtDNA sequence. Since mitochondrial dysfunction contributes to carcinogenesis and tumor development, mitoepigenetics is also essential for cancer. Understanding the mode of actions of mitoepigenetics in cancers may shade light on the clinical diagnosis and prevention of these diseases. In this review, we summarize the present study about modifications in mtDNA, mtRNA and nucleoids and modulations of mtDNA/nDNA-derived non-coding RNAs that affect mtDNA translation/function, and overview recent studies of mitoepigenetic alterations in cancer.
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Affiliation(s)
- Zhen Dong
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, Southwest University, Chongqing, China.,Cancer Center, Medical Research Institute, Southwest University, Chongqing, China.,Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing, China.,Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Southwest University, Chongqing, China
| | - Longjun Pu
- Umeå Centre for Molecular Medicine, Umeå University, Umeå, Sweden
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, Institute of Sericulture and Systems Biology, Southwest University, Chongqing, China.,Cancer Center, Medical Research Institute, Southwest University, Chongqing, China.,Engineering Research Center for Cancer Biomedical and Translational Medicine, Southwest University, Chongqing, China.,Chongqing Engineering and Technology Research Center for Silk Biomaterials and Regenerative Medicine, Southwest University, Chongqing, China
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39
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Lin CS, Wei YH, Yeh YC, Pan SC, Lu SY, Chen YJ, Chueh WY. Role of mitochondrial DNA copy number alteration in non-small cell lung cancer. FORMOSAN JOURNAL OF SURGERY 2020. [DOI: 10.4103/fjs.fjs_15_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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40
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Kang Q, Zhang X, Cao N, Chen C, Yi J, Hao L, Ji Y, Liu X, Lu J. EGCG enhances cancer cells sensitivity under 60Coγ radiation based on miR-34a/Sirt1/p53. Food Chem Toxicol 2019; 133:110807. [DOI: 10.1016/j.fct.2019.110807] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 09/01/2019] [Accepted: 09/05/2019] [Indexed: 01/04/2023]
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41
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Rodríguez-Enríquez S, Marín-Hernández Á, Gallardo-Pérez JC, Pacheco-Velázquez SC, Belmont-Díaz JA, Robledo-Cadena DX, Vargas-Navarro JL, Corona de la Peña NA, Saavedra E, Moreno-Sánchez R. Transcriptional Regulation of Energy Metabolism in Cancer Cells. Cells 2019; 8:cells8101225. [PMID: 31600993 PMCID: PMC6830338 DOI: 10.3390/cells8101225] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 09/19/2019] [Accepted: 10/01/2019] [Indexed: 01/17/2023] Open
Abstract
Cancer development, growth, and metastasis are highly regulated by several transcription regulators (TRs), namely transcription factors, oncogenes, tumor-suppressor genes, and protein kinases. Although TR roles in these events have been well characterized, their functions in regulating other important cancer cell processes, such as metabolism, have not been systematically examined. In this review, we describe, analyze, and strive to reconstruct the regulatory networks of several TRs acting in the energy metabolism pathways, glycolysis (and its main branching reactions), and oxidative phosphorylation of nonmetastatic and metastatic cancer cells. Moreover, we propose which possible gene targets might allow these TRs to facilitate the modulation of each energy metabolism pathway, depending on the tumor microenvironment.
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Affiliation(s)
| | | | | | | | | | | | | | - Norma Angélica Corona de la Peña
- Unidad de Investigación Médica en Trombosis, Hemostasia y Aterogénesis, Hospital General Regional Carlos McGregor-Sánchez, México CP 03100, Mexico.
| | - Emma Saavedra
- Departamento de Bioquímica, Instituto Nacional de Cardiología, México 14080, Mexico.
| | - Rafael Moreno-Sánchez
- Departamento de Bioquímica, Instituto Nacional de Cardiología, México 14080, Mexico.
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42
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Li Y, Lu J, Chen Q, Han S, Shao H, Chen P, Jin Q, Yang M, Shangguan F, Fei M, Wang L, Liu Y, Liu N, Lu B. Artemisinin suppresses hepatocellular carcinoma cell growth, migration and invasion by targeting cellular bioenergetics and Hippo-YAP signaling. Arch Toxicol 2019; 93:3367-3383. [PMID: 31563988 DOI: 10.1007/s00204-019-02579-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 09/17/2019] [Indexed: 01/17/2023]
Abstract
The primary liver cancer (PLC) is one of the leading causes of cancer-related death worldwide. The predominant form of PLC is hepatocellular carcinoma (HCC), which accounts for about 85% of all PLC. Artemisinin (ART) was clinically used as anti-malarial agents. Recently, it was demonstrated to inhibit cell growth and migration in multiple cancer types. However, the molecular mechanism underlying these anti-cancer activity remains largely unknown. Herein, it is discovered that ART dramatically suppresses HCC cell growth in vitro through arresting cell cycle progression, and represses cell migration and invasion via regulating N-cadherin-Snail-E-cadherin axis. In addition, the disruption of cellular bioenergetics contributed to ART-caused cell growth, migration and invasion inhibition. Moreover, ART (100 mg/kg, intraperitoneally) substantially inhibits HCC xenograft growth in vivo. Importantly, Hippo-YAP signal transduction is remarkably inactivated in HCC cells upon ART administration. Collectively, these data reveal a novel mechanism of ART in regulating HCC cell growth, migration, and invasion, which indicates that ART could be considered as a potential drug for the treatment of HCC.
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Affiliation(s)
- Yujie Li
- Protein Quality Control and Diseases Laboratory, Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, University-Town, Wenzhou, Zhejiang, 325035, China.,Department of Intensive Care, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China
| | - Jing Lu
- Protein Quality Control and Diseases Laboratory, Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, University-Town, Wenzhou, Zhejiang, 325035, China
| | - Qin Chen
- Department of Intensive Care, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China
| | - Shengnan Han
- Protein Quality Control and Diseases Laboratory, Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, University-Town, Wenzhou, Zhejiang, 325035, China
| | - Hua Shao
- Protein Quality Control and Diseases Laboratory, Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, University-Town, Wenzhou, Zhejiang, 325035, China
| | - Pingyi Chen
- Protein Quality Control and Diseases Laboratory, Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, University-Town, Wenzhou, Zhejiang, 325035, China
| | - Qiumei Jin
- Protein Quality Control and Diseases Laboratory, Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, University-Town, Wenzhou, Zhejiang, 325035, China
| | - Mingyue Yang
- Protein Quality Control and Diseases Laboratory, Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, University-Town, Wenzhou, Zhejiang, 325035, China
| | - Fugen Shangguan
- Protein Quality Control and Diseases Laboratory, Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, University-Town, Wenzhou, Zhejiang, 325035, China
| | - Mingming Fei
- Protein Quality Control and Diseases Laboratory, Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, University-Town, Wenzhou, Zhejiang, 325035, China
| | - Lu Wang
- Protein Quality Control and Diseases Laboratory, Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, University-Town, Wenzhou, Zhejiang, 325035, China
| | - Yongzhang Liu
- Protein Quality Control and Diseases Laboratory, Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, University-Town, Wenzhou, Zhejiang, 325035, China. .,Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, Zhejiang Provincial Top Key Discipline in Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China.
| | - Naxin Liu
- Department of Pancreatitis Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China. .,Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, Zhejiang Provincial Top Key Discipline in Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China.
| | - Bin Lu
- Protein Quality Control and Diseases Laboratory, Key Laboratory of Medical Genetics of Zhejiang Province, Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, University-Town, Wenzhou, Zhejiang, 325035, China. .,Key Laboratory of Diagnosis and Treatment of Severe Hepato-Pancreatic Diseases of Zhejiang Province, Zhejiang Provincial Top Key Discipline in Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325000, China.
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Ghnaimawi S, Shelby S, Baum J, Huang Y. Effects of eicosapentaenoic acid and docosahexaenoic acid on C2C12 cell adipogenesis and inhibition of myotube formation. Anim Cells Syst (Seoul) 2019; 23:355-364. [PMID: 31700701 PMCID: PMC6830227 DOI: 10.1080/19768354.2019.1661282] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 08/08/2019] [Accepted: 08/22/2019] [Indexed: 12/14/2022] Open
Abstract
Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) modulate cellular metabolic functions and gene expression. This study investigated the impacts of EPA and DHA on gene expression and morphological changes during adipogenic inducement in C2C12 myoblasts. Cells were cultured and treated with differentiation medium with and without 50 μM EPA and DHA. Cells treated with fatty acids had noticeable lipid droplets, but no formation of myotubes compared to control group cells. The expression levels of key genes relevant to adipogenesis and inflammation were significantly higher (P < 0.05) in cells treated with fatty acids. Genes associated with myogenesis and mitochondrial biosynthesis and function had lower (P < 0.05) expression with fatty acids supplementation. Moreover, fatty acid treatment reduced (P < 0.05) oxygen consumption rate in the differentiated cells. This suggested blocking myotube formation through supplementation with EPA and DHA drove myoblasts to enter the quiescent state and enabled adipogenic trans-differentiation of the myoblasts. Data also suggested that overdosage of EPA and DHA during gestation may drive fetal mesenchymal stem cell differentiation to the fate of adipogenesis and have a long-term effect on childhood obesity.
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Affiliation(s)
- Saeed Ghnaimawi
- Department of Animal Science, Division of Agriculture, University of Arkansas, Fayetteville AR, USA
| | - Sarah Shelby
- Department of Animal Science, Division of Agriculture, University of Arkansas, Fayetteville AR, USA
| | - Jamie Baum
- Department of Food Science, Division of Agriculture, University of Arkansas, Fayetteville AR, USA
| | - Yan Huang
- Department of Animal Science, Division of Agriculture, University of Arkansas, Fayetteville AR, USA
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Jiang X, Wang J. Down-regulation of TFAM increases the sensitivity of tumour cells to radiation via p53/TIGAR signalling pathway. J Cell Mol Med 2019; 23:4545-4558. [PMID: 31062473 PMCID: PMC6584511 DOI: 10.1111/jcmm.14350] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 03/27/2019] [Accepted: 04/10/2019] [Indexed: 11/11/2022] Open
Abstract
Mitochondrial transcription factor A (TFAM) is a key regulator of mitochondria biogenesis. Previous studies confirmed that reduced TFAM expression sensitized tumours cells to chemical therapy reagents and ionizing irradiation (IR). However, the underlying mechanisms remain largely unknown. In this study, we identified that decreased expression of TFAM impaired the proliferation of tumour cells by inducing G1/S phase arrest and reducing the expression of E2F1, phospo-Rb, PCNA and TK1. Furthermore, we proved that knockdown of TFAM enhanced the interaction between p53 and MDM2, resulting in decreased expression of p53 and the downstream target TIGAR, and thus leading to elevated level of mitochondrial superoxide and DNA double-strand break (DSB) which were exacerbated when treated the cell with ionizing radiation. Those indicated that knockdown of TFAM could aggravate radiation induced DSB levels through affecting the production of mitochondria derived reactive oxygen species. Our current work proposed a new mechanism that TFAM through p53/TIGAR signalling to regulate the sensitivity of tumour cells to ionizing radiation. This indicated that TFAM might be a potential target for increasing the sensitization of cancer cells to radiotherapy.
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Affiliation(s)
- Xu Jiang
- Key Laboratory of High Magnetic Field and Ion Beam Physical BiologyChinese Academy of SciencesHefeiChina
- The University of Science and Technology of ChinaHefeiChina
| | - Jun Wang
- Key Laboratory of High Magnetic Field and Ion Beam Physical BiologyChinese Academy of SciencesHefeiChina
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45
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Cyclooxygenase-2-Mediated Up-Regulation of Mitochondrial Transcription Factor A Mitigates the Radio-Sensitivity of Cancer Cells. Int J Mol Sci 2019; 20:ijms20051218. [PMID: 30862036 PMCID: PMC6429587 DOI: 10.3390/ijms20051218] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 02/22/2019] [Accepted: 03/07/2019] [Indexed: 12/23/2022] Open
Abstract
Mitochondrial transcription factor A (TFAM) regulates mitochondrial biogenesis, and it is a candidate target for sensitizing tumor during therapy. Previous studies identified that increased TFAM expression conferred tumor cells resistance to ionizing radiation. However, the mechanisms on how TFAM are regulated in irradiated tumor cells remain to be explored. In this research, we demonstrated the contribution of cyclooxygenase-2 (COX-2) to enhancing TFAM expression in irradiated tumor cells. Our results showed TFAM was concomitantly up-regulated with COX-2 in irradiated tumor cells. Inhibition of COX-2 by NS-398 blocked radiation-induced expression of TFAM, and prostaglandin E2 (PGE2) treatment stimulated TFAM expression. We next provided evidence that DRP1-mediated mitochondrial fragmentation was a reason for TFAM up-regulation in irradiated cells, by using small interfering RNA (siRNA) and selective inhibitor-targeted DRP1. Furthermore, we proved that p38-MAPK-connected COX-2, and DRP1-mediated TFAM up-regulation. Enhanced phosphorylation of p38 in irradiated tumor cells promoted DRP1 expression, mitochondrial fragmentation, and TFAM expression. NS-398 treatment inhibited radiation-induced p38 phosphorylation, while PGE2 stimulated the activation of p38. The results put forward a mechanism where COX-2 stimulates TFAM expression via p38-mediated DRP1/mitochondrial fragmentation signaling in irradiated tumor cells, which may be of value in understanding how to sensitize cancer cells during radiotherapy.
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46
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Wang G, Wang Q, Huang Q, Chen Y, Sun X, He L, Zhan L, Guo X, Yin C, Fang Y, He X, Xing J. Upregulation of mtSSB by interleukin-6 promotes cell growth through mitochondrial biogenesis-mediated telomerase activation in colorectal cancer. Int J Cancer 2018; 144:2516-2528. [PMID: 30415472 DOI: 10.1002/ijc.31978] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 10/08/2018] [Accepted: 10/30/2018] [Indexed: 12/17/2022]
Abstract
It is now widely accepted that mitochondrial biogenesis is inhibited in most cancer cells. Interestingly, one of the possible exceptions is colorectal cancer (CRC), in which the content of mitochondria has been found to be higher than in normal colon mucosa. However, to date, the causes and effects of this phenomenon are still unclear. In the present study, we systematically investigated the functional role of mitochondrial single-strand DNA binding protein (mtSSB), a key molecule in the regulation of mitochondrial DNA (mtDNA) replication, in the mitochondrial biogenesis and CRC cell growth. Our results demonstrated that mtSSB was frequently upregulated in CRC tissues and that upregulated mtSSB was associated with poor prognosis in CRC patients. Furthermore, overexpression of mtSSB promoted CRC cell growth in vitro by regulating cell proliferation. The in vivo assay confirmed these results, indicating that the forced expression of mtSSB significantly increases the growth capacity of xenograft tumors. Mechanistically, the survival advantage conferred by mtSSB was primarily caused by increased mitochondrial biogenesis and subsequent ROS production, which induced telomerase reverse transcriptase (TERT) expression and telomere elongation via Akt/mTOR pathway in CRC cells. In addition, FOXP1, a member of the forkhead box family, was identified as a new transcription factor for mtSSB. Moreover, our results also demonstrate that proinflammatory IL-6/STAT3 signaling facilitates mtSSB expression and CRC cell proliferation via inducing FOXP1 expression. Collectively, our findings demonstrate that mtSSB induced by inflammation plays a critical role in the regulation of mitochondrial biogenesis, telomerase activation, and subsequent CRC proliferation, providing a strong evidence for mtSSB as drug target in CRC treatment.
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Affiliation(s)
- Gang Wang
- State Key Laboratory of Cancer Biology and Experimental Teaching Center of Basic Medicine, Fourth Military Medical University, Xi'an, China.,Department of General Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Qian Wang
- State Key Laboratory of Cancer Biology and Experimental Teaching Center of Basic Medicine, Fourth Military Medical University, Xi'an, China.,Department of General Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Qichao Huang
- State Key Laboratory of Cancer Biology and Experimental Teaching Center of Basic Medicine, Fourth Military Medical University, Xi'an, China
| | - Yibing Chen
- State Key Laboratory of Cancer Biology and Experimental Teaching Center of Basic Medicine, Fourth Military Medical University, Xi'an, China.,Center of Genetic & Prenatal Diagnosis, First Affiliated Hospital, Zhengzhou University, Zhengzhou, China
| | - Xiacheng Sun
- State Key Laboratory of Cancer Biology and Experimental Teaching Center of Basic Medicine, Fourth Military Medical University, Xi'an, China
| | - Linjie He
- State Key Laboratory of Cancer Biology and Experimental Teaching Center of Basic Medicine, Fourth Military Medical University, Xi'an, China
| | - Lei Zhan
- Department of Gastroenterology, Second Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Xu Guo
- State Key Laboratory of Cancer Biology and Experimental Teaching Center of Basic Medicine, Fourth Military Medical University, Xi'an, China
| | - Chun Yin
- State Key Laboratory of Cancer Biology and Experimental Teaching Center of Basic Medicine, Fourth Military Medical University, Xi'an, China
| | - Yujiang Fang
- Department of Microbiology, Immunology & Pathology, Des Moines University, Des Moines, IA
| | - Xianli He
- Department of General Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Jinliang Xing
- State Key Laboratory of Cancer Biology and Experimental Teaching Center of Basic Medicine, Fourth Military Medical University, Xi'an, China
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47
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Araujo LF, Siena ADD, Plaça JR, Brotto DB, Barros II, Muys BR, Biagi CAO, Peronni KC, Sousa JF, Molfetta GA, West LC, West AP, Leopoldino AM, Espreafico EM, Silva WA. Mitochondrial transcription factor A (TFAM) shapes metabolic and invasion gene signatures in melanoma. Sci Rep 2018; 8:14190. [PMID: 30242167 PMCID: PMC6155108 DOI: 10.1038/s41598-018-31170-6] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 07/27/2018] [Indexed: 12/27/2022] Open
Abstract
Mitochondria are central key players in cell metabolism, and mitochondrial DNA (mtDNA) instability has been linked to metabolic changes that contribute to tumorigenesis and to increased expression of pro-tumorigenic genes. Here, we use melanoma cell lines and metastatic melanoma tumors to evaluate the effect of mtDNA alterations and the expression of the mtDNA packaging factor, TFAM, on energetic metabolism and pro-tumorigenic nuclear gene expression changes. We report a positive correlation between mtDNA copy number, glucose consumption, and ATP production in melanoma cell lines. Gene expression analysis reveals a down-regulation of glycolytic enzymes in cell lines and an up-regulation of amino acid metabolism enzymes in melanoma tumors, suggesting that TFAM may shift melanoma fuel utilization from glycolysis towards amino acid metabolism, especially glutamine. Indeed, proliferation assays reveal that TFAM-down melanoma cell lines display a growth arrest in glutamine-free media, emphasizing that these cells rely more on glutamine metabolism than glycolysis. Finally, our data indicate that TFAM correlates to VEGF expression and may contribute to tumorigenesis by triggering a more invasive gene expression signature. Our findings contribute to the understanding of how TFAM affects melanoma cell metabolism, and they provide new insight into the mechanisms by which TFAM and mtDNA copy number influence melanoma tumorigenesis.
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Affiliation(s)
- L F Araujo
- Department of Genetics-Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
- National institute of Science and Technology in Stem Cell and Cell Therapy, Center for Cell-based Therapy-CEPID/FAPESP, Ribeirão Preto, Brazil
- Medical Genomics Laboratory, CIPE, AC Camargo Cancer Center, São Paulo, Brazil
| | - A D D Siena
- Department of Genetics-Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
- National institute of Science and Technology in Stem Cell and Cell Therapy, Center for Cell-based Therapy-CEPID/FAPESP, Ribeirão Preto, Brazil
| | - J R Plaça
- National institute of Science and Technology in Stem Cell and Cell Therapy, Center for Cell-based Therapy-CEPID/FAPESP, Ribeirão Preto, Brazil
| | - D B Brotto
- Department of Genetics-Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
- National institute of Science and Technology in Stem Cell and Cell Therapy, Center for Cell-based Therapy-CEPID/FAPESP, Ribeirão Preto, Brazil
| | - I I Barros
- Department of Genetics-Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
- National institute of Science and Technology in Stem Cell and Cell Therapy, Center for Cell-based Therapy-CEPID/FAPESP, Ribeirão Preto, Brazil
| | - B R Muys
- Department of Genetics-Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
- National institute of Science and Technology in Stem Cell and Cell Therapy, Center for Cell-based Therapy-CEPID/FAPESP, Ribeirão Preto, Brazil
| | - C A O Biagi
- Department of Genetics-Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
- National institute of Science and Technology in Stem Cell and Cell Therapy, Center for Cell-based Therapy-CEPID/FAPESP, Ribeirão Preto, Brazil
| | - K C Peronni
- National institute of Science and Technology in Stem Cell and Cell Therapy, Center for Cell-based Therapy-CEPID/FAPESP, Ribeirão Preto, Brazil
| | - J F Sousa
- Department of Genetics-Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
- National institute of Science and Technology in Stem Cell and Cell Therapy, Center for Cell-based Therapy-CEPID/FAPESP, Ribeirão Preto, Brazil
| | - G A Molfetta
- Department of Genetics-Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
- National institute of Science and Technology in Stem Cell and Cell Therapy, Center for Cell-based Therapy-CEPID/FAPESP, Ribeirão Preto, Brazil
| | - L C West
- Microbial Pathogenesis & Immunology, Health Science Center, Texas A&M University, College Station, USA
| | - A P West
- Microbial Pathogenesis & Immunology, Health Science Center, Texas A&M University, College Station, USA
| | - A M Leopoldino
- Department of Clinical Analysis-Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
| | - E M Espreafico
- Department of Cellular and Molecular Biology-Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - W A Silva
- Department of Genetics-Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil.
- National institute of Science and Technology in Stem Cell and Cell Therapy, Center for Cell-based Therapy-CEPID/FAPESP, Ribeirão Preto, Brazil.
- Center for Integrative System Biology-CISBi-NAP/USP, University of São Paulo, Ribeirão Preto, Brazil.
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48
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Zhang R, Wang J. HuR stabilizes TFAM mRNA in an ATM/p38-dependent manner in ionizing irradiated cancer cells. Cancer Sci 2018; 109:2446-2457. [PMID: 29856906 PMCID: PMC6113444 DOI: 10.1111/cas.13657] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Revised: 05/29/2018] [Accepted: 05/30/2018] [Indexed: 12/27/2022] Open
Abstract
Mitochondrial transcription factor A (TFAM) plays key roles in transcription and maintenance of mtDNA. It has been reported that TFAM could promote the proliferation and tumorigenesis of cells under stressed conditions. Previous evidence showed ionizing radiation stimulated the expression of TFAM, the replication of mtDNA, and the activity of mtDNA‐encoded cytochrome C oxidase. However, little is known about the mechanism of TFAM regulation in irradiated cells. In this article, we explored the role of mRNA stability in regulating TFAM expression in irradiated cancer cells. Our results showed that radiation stimulated the levels of TFAM mRNA and protein. RNA‐binding protein HuR associated and stabilized TFAM mRNA to facilitate the expression of TFAM, which was enhanced by radiation. Furthermore, radiation‐activated ataxia‐telangiectasia mutated kinase/p38 signaling positively contributed to the nucleus to cytosol translocation of HuR, its binding and stabilization of TFAM mRNA, without affecting the transcription and the stability of TFAM. Our current work proposed a new mechanism of DNA damage response‐regulated mitochondrial function variations, and indicated that TFAM might be a potential target for increasing the sensitization of cancer cells to radiotherapy.
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Affiliation(s)
- Rui Zhang
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Chinese Academy of Sciences, Hefei, China.,University of Science and Technology of China, Hefei, China
| | - Jun Wang
- Key Laboratory of High Magnetic Field and Ion Beam Physical Biology, Chinese Academy of Sciences, Hefei, China
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49
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Franco DG, Moretti IF, Marie SKN. Mitochondria Transcription Factor A: A Putative Target for the Effect of Melatonin on U87MG Malignant Glioma Cell Line. Molecules 2018; 23:molecules23051129. [PMID: 29747444 PMCID: PMC6099566 DOI: 10.3390/molecules23051129] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 05/04/2018] [Accepted: 05/07/2018] [Indexed: 12/30/2022] Open
Abstract
The disruption of mitochondrial activity has been associated with cancer development because it contributes to regulating apoptosis and is the main source of reactive oxygen species (ROS) production. Mitochondrial transcription factor A (TFAM) is a protein that maintains mitochondrial DNA (mtDNA) integrity, and alterations in its expression are associated with mitochondrial damage and cancer development. In addition, studies have shown that mitochondria are a known target of melatonin, the pineal gland hormone that plays an important anti-tumorigenic role. Thus, we hypothesized that melatonin decreases the expression of TFAM (RNA and protein) in the human glioblastoma cell line U87MG, which disrupts mtDNA expression and results in cell death due to increased ROS production and mitochondrial damage. Our results confirm the hypothesis, and also show that melatonin reduced the expression of other mitochondrial transcription factors mRNA (TFB1M and TFB2M) and interfered with mtDNA transcription. Moreover, melatonin delayed cell cycle progression and potentiated the reduction of cell survival due to treatment with the chemotherapeutic agent temozolomide. In conclusion, elucidating the effect of melatonin on TFAM expression should help to understand the signaling pathways involved in glioblastoma progression, and melatonin could be potentially applied in the treatment of this type of brain tumor.
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Affiliation(s)
- Daiane G Franco
- Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, SP 01246903, Brazil.
| | - Isabele F Moretti
- Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, SP 01246903, Brazil.
| | - Suely K N Marie
- Faculdade de Medicina FMUSP, Universidade de Sao Paulo, Sao Paulo, SP 01246903, Brazil.
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50
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Zeng Z, Zhang H, Wang X, Liu K, Li T, Sun S, Li H. Salvianolic acid B suppresses cell proliferation and induces apoptosis in osteosarcoma through p38-mediated reactive oxygen species generation. Oncol Lett 2018; 15:2679-2685. [PMID: 29434992 DOI: 10.3892/ol.2017.7609] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Accepted: 01/06/2017] [Indexed: 12/16/2022] Open
Abstract
The present study aimed to investigate the potential anticancer effect and mechanisms of salvianolic acid B on osteosarcoma. Salvianolic acid B suppressed osteosarcoma cell proliferation and induced apoptosis in the osteosarcoma MG63 cell line, and activated the expressions of cleaved caspase-3, phosphorylated-tumor protein (p)38 mitogen-activated protein kinase (p-p38 MAPK) and phosphorylated-p53 (p-p53) proteins in the MG63 cells. Additionally, Salvianolic acid B also increased the level of reactive oxygen species (ROS) generation in the MG63 cells. The silencing of p38 expression inhibited the anticancer effect of salvianolic acid B on the levels of cell proliferation, p-p53 protein expression and ROS generation level in the MG63 cells. All these data supported the hypothesis that the anticancer effect of salvianolic acid B includes the suppression of cell proliferation and induces apoptosis in MG63 cells, and that p38 is important in the anticancer effect of salvianolic acid B on osteosarcoma cells due to the direct regulation of ROS generation. These data suggest that salvianolic acid B is important in the proliferation of osteosarcoma cells due to the direct regulation of p38-mediated ROS signaling.
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Affiliation(s)
- Zhaoyang Zeng
- College of Integrated Traditional Chinese and Western Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu 730000, P.R. China
| | - Hua Zhang
- College of Integrated Traditional Chinese and Western Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu 730000, P.R. China
| | - Xin Wang
- Department of Orthopedics, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Kai Liu
- College of Integrated Traditional Chinese and Western Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu 730000, P.R. China
| | - Tian Li
- College of Integrated Traditional Chinese and Western Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu 730000, P.R. China
| | - Shaobo Sun
- College of Integrated Traditional Chinese and Western Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu 730000, P.R. China
| | - Hailong Li
- College of Integrated Traditional Chinese and Western Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu 730000, P.R. China
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