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Hosseini SM, Tingzhu Y, Zaohong R, Ullah F, Liang A, Hua G, Yang L. Regulatory impacts of PPARGC1A gene expression on milk production and cellular metabolism in buffalo mammary epithelial cells. Anim Biotechnol 2024; 35:2344210. [PMID: 38785376 DOI: 10.1080/10495398.2024.2344210] [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: 05/25/2024]
Abstract
The PPARGC1A gene plays a fundamental role in regulating cellular energy metabolism, including adaptive thermogenesis, mitochondrial biogenesis, adipogenesis, gluconeogenesis, and glucose/fatty acid metabolism. In a previous study, our group investigated seven SNPs in Mediterranean buffalo associated with milk production traits, and the current study builds on this research by exploring the regulatory influences of the PPARGC1A gene in buffalo mammary epithelial cells (BuMECs). Our findings revealed that knockdown of PPARGC1A gene expression significantly affected the growth of BuMECs, including proliferation, cell cycle, and apoptosis. Additionally, we observed downregulated triglyceride secretion after PPARGC1A knockdown. Furthermore, the critical genes related to milk production, including the STATS, BAD, P53, SREBF1, and XDH genes were upregulated after RNAi, while the FABP3 gene, was downregulated. Moreover, Silencing the PPARGC1A gene led to a significant downregulation of β-casein synthesis in BuMECs. Our study provides evidence of the importance of the PPARGC1A gene in regulating cell growth, lipid, and protein metabolism in the buffalo mammary gland. In light of our previous research, the current study underscores the potential of this gene for improving milk production efficiency and overall dairy productivity in buffalo populations.
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Affiliation(s)
- Seyed Mahdi Hosseini
- National Center for International Research on Animal Genetics, Breeding and Reproduction (NCIRAGBR), College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Ye Tingzhu
- National Center for International Research on Animal Genetics, Breeding and Reproduction (NCIRAGBR), College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Ran Zaohong
- National Center for International Research on Animal Genetics, Breeding and Reproduction (NCIRAGBR), College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Farman Ullah
- National Center for International Research on Animal Genetics, Breeding and Reproduction (NCIRAGBR), College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Aixin Liang
- National Center for International Research on Animal Genetics, Breeding and Reproduction (NCIRAGBR), College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Guohua Hua
- National Center for International Research on Animal Genetics, Breeding and Reproduction (NCIRAGBR), College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Liguo Yang
- National Center for International Research on Animal Genetics, Breeding and Reproduction (NCIRAGBR), College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, China
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2
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Gao YH, Wen DT, Du ZR, Wang JF, Wang SJ. Muscle Psn gene combined with exercise contribute to healthy aging of skeletal muscle and lifespan by adaptively regulating Sirt1/PGC-1α and arm pathway. PLoS One 2024; 19:e0300787. [PMID: 38753634 PMCID: PMC11098322 DOI: 10.1371/journal.pone.0300787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 03/05/2024] [Indexed: 05/18/2024] Open
Abstract
The Presenilin (Psn) gene is closely related to aging, but it is still unclear the role of Psn genes in skeletal muscle. Here, the Psn-UAS/Mhc-GAL4 system in Drosophila was used to regulate muscle Psn overexpression(MPO) and muscle Psn knockdown(MPK). Drosophila were subjected to endurance exercise from 4 weeks to 5 weeks old. The results showed that MPO and exercise significantly increased climbing speed, climbing endurance, lifespan, muscle SOD activity, Psn expression, Sirt1 expression, PGC-1α expression, and armadillo (arm) expression in aged Drosophila, and they significantly decreased muscle malondialdehyde levels. Interestingly, when the Psn gene is knockdown by 0.78 times, the PGC-1α expression and arm expression were also down-regulated, but the exercise capacity and lifespan were increased. Furthermore, exercise combined with MPO further improved the exercise capacity and lifespan. MPK combined with exercise further improves the exercise capacity and lifespan. Thus, current results confirmed that the muscle Psn gene was a vital gene that contributed to the healthy aging of skeletal muscle since whether it was overexpressed or knocked down, the aging progress of skeletal muscle structure and function was slowed down by regulating the activity homeostasis of Sirt1/PGC-1α pathway and Psn/arm pathway. Exercise enhanced the function of the Psn gene to delay skeletal muscle aging by up regulating the activity of the Sirt1/PGC-1α pathway and Psn/arm pathway.
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Affiliation(s)
- Ying-hui Gao
- Ludong University, City Yantai, Shandong Province, China
| | - Deng-tai Wen
- Ludong University, City Yantai, Shandong Province, China
| | - Zhong-rui Du
- Ludong University, City Yantai, Shandong Province, China
| | - Jing-feng Wang
- Ludong University, City Yantai, Shandong Province, China
| | - Shi-jie Wang
- Ludong University, City Yantai, Shandong Province, China
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3
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Galichon P, Lannoy M, Li L, Serre J, Vandermeersch S, Legouis D, Valerius MT, Hadchouel J, Bonventre JV. Energy depletion by cell proliferation sensitizes the kidney epithelial cells to injury. Am J Physiol Renal Physiol 2024; 326:F326-F337. [PMID: 38205542 PMCID: PMC11207531 DOI: 10.1152/ajprenal.00023.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 11/06/2023] [Accepted: 11/06/2023] [Indexed: 01/12/2024] Open
Abstract
Acute kidney injury activates both proliferative and antiproliferative pathways, the consequences of which are not fully elucidated. If an initial proliferation of the renal epithelium is necessary for the successful repair, the persistence of proliferation markers is associated with the occurrence of chronic kidney disease. We hypothesized that proliferation in stress conditions impacts cell viability and renal outcomes. We found that proliferation is associated with cell death after various stresses in kidney cells. In vitro, the ATP/ADP ratio oscillates reproducibly throughout the cell cycle, and cell proliferation is associated with a decreased intracellular ATP/ADP ratio. In vivo, transcriptomic data from transplanted kidneys revealed that proliferation was strongly associated with a decrease in the expression of the mitochondria-encoded genes of the oxidative phosphorylation pathway, but not of the nucleus-encoded ones. These observations suggest that mitochondrial function is a limiting factor for energy production in proliferative kidney cells after injury. The association of increased proliferation and decreased mitochondrial function was indeed associated with poor renal outcomes. In summary, proliferation is an energy-demanding process impairing the cellular ability to cope with an injury, highlighting proliferative repair and metabolic recovery as indispensable and interdependent features for successful kidney repair.NEW & NOTEWORTHY ATP depletion is a hallmark of acute kidney injury. Proliferation is instrumental to kidney repair. We show that ATP levels vary during the cell cycle and that proliferation sensitizes renal epithelial cells to superimposed injuries in vitro. More proliferation and less energy production by the mitochondria are associated with adverse outcomes in injured kidney allografts. This suggests that controlling the timing of kidney repair might be beneficial to mitigate the extent of acute kidney injury.
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Affiliation(s)
- Pierre Galichon
- Department of Medicine, Harvard Medical School, Boston, Massachusetts, United States
- Institut National de la Santé et de la Recherche Médicale (UMR_S1155), "Common and Rare and Kidney Diseases: From Molecular Events to Precision Medicine," Paris, France
- Medical School, Sorbonne Université, Paris, France
| | - Morgane Lannoy
- Institut National de la Santé et de la Recherche Médicale (UMR_S1155), "Common and Rare and Kidney Diseases: From Molecular Events to Precision Medicine," Paris, France
| | - Li Li
- Department of Medicine, Harvard Medical School, Boston, Massachusetts, United States
- Institut National de la Santé et de la Recherche Médicale (UMR_S1155), "Common and Rare and Kidney Diseases: From Molecular Events to Precision Medicine," Paris, France
| | - Justine Serre
- Institut National de la Santé et de la Recherche Médicale (UMR_S1155), "Common and Rare and Kidney Diseases: From Molecular Events to Precision Medicine," Paris, France
| | - Sophie Vandermeersch
- Institut National de la Santé et de la Recherche Médicale (UMR_S1155), "Common and Rare and Kidney Diseases: From Molecular Events to Precision Medicine," Paris, France
| | - David Legouis
- Laboratory of Nephrology, Division of Intensive Care, Department of Medicine and Cell Physiology, University Hospital of Geneva, Geneva, Switzerland
| | - M Todd Valerius
- Department of Medicine, Harvard Medical School, Boston, Massachusetts, United States
- Institut National de la Santé et de la Recherche Médicale (UMR_S1155), "Common and Rare and Kidney Diseases: From Molecular Events to Precision Medicine," Paris, France
| | - Juliette Hadchouel
- Institut National de la Santé et de la Recherche Médicale (UMR_S1155), "Common and Rare and Kidney Diseases: From Molecular Events to Precision Medicine," Paris, France
| | - Joseph V Bonventre
- Department of Medicine, Harvard Medical School, Boston, Massachusetts, United States
- Institut National de la Santé et de la Recherche Médicale (UMR_S1155), "Common and Rare and Kidney Diseases: From Molecular Events to Precision Medicine," Paris, France
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Teng H, Yang B, Su Y, Chen J, Cui L, Sun R, Zhao J, Liu Q, Qin A. Aminooxyacetic acid hemihydrochloride leads to decreased intracellular ATP levels and altered cell cycle of prostate cancer cells by suppressing energy metabolism. Biomed Pharmacother 2023; 167:115605. [PMID: 37801901 DOI: 10.1016/j.biopha.2023.115605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 09/21/2023] [Accepted: 09/26/2023] [Indexed: 10/08/2023] Open
Abstract
The second most common cancer among men is prostate cancer, which is also the fifth leading reason for male cancer deaths worldwide. Bone metastases are the main factor affecting the prognosis of prostate cancer. Consequently, antitumor and anti-prostate cancer-induced bone destruction medicines are urgently needed. We previously discovered that aminooxyacetic acid hemihydrochloride (AOAA) suppressed bone resorption and osteoclast growth by decreasing adenosine triphosphate (ATP) production and limiting oxidative phosphorylation (OXPHOS). Here, we evaluated the impacts of AOAA on prostate cancer RM-1 cells in vitro. It's found that AOAA significantly inhibited cell proliferation, migration, and invasiveness, decreased ATP levels, increased ROS, halted the cell cycle phase, and triggered apoptosis. AOAA also decreased mitochondrial membrane potential and the ability to uptake glucose, suggesting that the antitumor effects of AOAA were expressed through the inhibition of OXPHOS and glycolysis. Furthermore, we assessed the effects of AOAA in vivo using a prostate cancer-induced bone osteolysis mice model. AOAA also delayed tumor growth and bone destruction in vivo. On the whole, our findings imply that AOAA may potentially have therapeutic effects on prostate cancer and prostate cancer-induced osteolysis.
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Affiliation(s)
- Hailong Teng
- Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application Co-constructed by the Province and Ministry, Life Sciences Institute, Guangxi Medical University, Nanning, Guangxi, China
| | - Biao Yang
- Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application Co-constructed by the Province and Ministry, Life Sciences Institute, Guangxi Medical University, Nanning, Guangxi, China
| | - Yuangang Su
- Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application Co-constructed by the Province and Ministry, Life Sciences Institute, Guangxi Medical University, Nanning, Guangxi, China
| | - Junchun Chen
- Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application Co-constructed by the Province and Ministry, Life Sciences Institute, Guangxi Medical University, Nanning, Guangxi, China
| | - Lei Cui
- Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application Co-constructed by the Province and Ministry, Life Sciences Institute, Guangxi Medical University, Nanning, Guangxi, China
| | - Ran Sun
- Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application Co-constructed by the Province and Ministry, Life Sciences Institute, Guangxi Medical University, Nanning, Guangxi, China
| | - Jinmin Zhao
- Guangxi Key Laboratory of Regenerative Medicine, Orthopaedic Department, The First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi, China
| | - Qian Liu
- Guangxi Key Laboratory of Regenerative Medicine, Orthopaedic Department, The First Affiliated Hospital, Guangxi Medical University, Nanning, Guangxi, China.
| | - An Qin
- Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application Co-constructed by the Province and Ministry, Life Sciences Institute, Guangxi Medical University, Nanning, Guangxi, China; Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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Yadav S, Shah D, Dalai P, Agrawal-Rajput R. The tale of antibiotics beyond antimicrobials: Expanding horizons. Cytokine 2023; 169:156285. [PMID: 37393846 DOI: 10.1016/j.cyto.2023.156285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 06/02/2023] [Accepted: 06/24/2023] [Indexed: 07/04/2023]
Abstract
Antibiotics had proved to be a godsend for mankind since their discovery. They were once the magical solution to the vexing problem of infection-related deaths. German scientist Paul Ehrlich had termed salvarsan as the silver bullet to treatsyphilis.As time passed, the magic of newly discovered silver bullets got tarnished with raging antibiotic resistance among bacteria and associated side-effects. Still, antibiotics remain the primary line of treatment for bacterial infections. Our understanding of their chemical and biological activities has increased immensely with advancement in the research field. Non-antibacterial effects of antibiotics are studied extensively to optimise their safer, broad-range use. These non-antibacterial effects could be both useful and harmful to us. Various researchers across the globe including our lab are studying the direct/indirect effects and molecular mechanisms behind these non-antibacterial effects of antibiotics. So, it is interesting for us to sum up the available literature. In this review, we have briefed the possible reason behind the non-antibacterial effects of antibiotics, owing to the endosymbiotic origin of host mitochondria. We further discuss the physiological and immunomodulatory effects of antibiotics. We then extend the review to discuss molecular mechanisms behind the plausible use of antibiotics as anticancer agents.
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Affiliation(s)
- Shivani Yadav
- Immunology Lab, Department of Biotechnology and Bioengineering, Indian Institute of Advanced Research, Gandhinagar, India
| | - Dhruvi Shah
- Immunology Lab, Department of Biotechnology and Bioengineering, Indian Institute of Advanced Research, Gandhinagar, India
| | - Parmeswar Dalai
- Immunology Lab, Department of Biotechnology and Bioengineering, Indian Institute of Advanced Research, Gandhinagar, India
| | - Reena Agrawal-Rajput
- Immunology Lab, Department of Biotechnology and Bioengineering, Indian Institute of Advanced Research, Gandhinagar, India.
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Yang S, Zhao J, Cui X, Zhan Q, Yi K, Wang Q, Xiao M, Tan Y, Hong B, Fang C, Kang C. TCA-phospholipid-glycolysis targeted triple therapy effectively suppresses ATP production and tumor growth in glioblastoma. Theranostics 2022; 12:7032-7050. [PMID: 36276638 PMCID: PMC9576613 DOI: 10.7150/thno.74197] [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: 04/20/2022] [Accepted: 09/14/2022] [Indexed: 11/14/2022] Open
Abstract
Rationale: Glioblastoma (GBM) displays a complex metabolic reprogramming in cancer cells. Adenosine triphosphate (ATP) is one of the central mediators of cell metabolism and signaling. GBM cells generate ATP by glycolysis and the tricarboxylic acid (TCA) cycle associated with oxidative phosphorylation (OXPHOS) through the breaking-down of pyruvate or fatty acids to meet the growing energy demand of cancer cells. Therefore, it's urgent to develop novel treatments targeting energy metabolism to hinder tumor cell proliferation in GBM. Methods: Non-targeted metabolomic profiling analysis was utilized to evaluate cell metabolic reprogramming using a small molecule inhibitor (SMI) EPIC-0412 treatment. Cellular oxygen consumption rate (OCR) and the total proton efflux rate (PER), as well as ATP concentration, were tracked to study metabolic responses to specifically targeted inhibitors, including EPIC-0412, arachidonyl trifluoromethyl ketone (AACOCF3), and 2 deoxy-D-glucose (2-DG). Cancer cell proliferation was assessed by CCK-8 measurements and colony formation assay. Additionally, flow cytometry, immunoblotting (IB), and immunofluorescence (IF) analyses were performed with GBM cells to understand their tumorigenic properties under treatments. Finally, the anticancer effects of this combination therapy were evaluated in the GBM mouse model by convection-enhanced delivery (CED). Results: We found that SMI EPIC-0412 could effectively perturb the TCA cycle, which participated in the combination therapy of cytosolic phospholipase A2 (cPLA2)-inhibitor AACOCF3, and hexokinase II (HK2)-inhibitor 2-DG to disrupt the GBM energy metabolism for targeted metabolic treatments. ATP production was significantly declined in glioma cells when treated with monotherapy (EPIC-0412 or AACOCF3), dual therapy (EPIC-0412 + AACOCF3), or triple therapy (EPIC-0412 + AACOCF3 +2-DG) regimen. Our experiments revealed that these therapies hindered glioma cell proliferation and growth, leading to the reduction in ATP production and G0/G1 cell cycle arrest. We demonstrated that the combination therapy effectively extended the survival of cerebral tumor-bearing mice. Conclusion: Our findings indicate that the TCA-phospholipid-glycolysis metabolism axis can be blocked by specific inhibitors that significantly disrupt the tumor energy metabolism and suppress tumor proliferation in vitro and in vivo, suggesting that targeting ATP synthesis inhibition in cancer cells might be an attractive therapeutic avenue in GBM management.
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Affiliation(s)
- Shixue Yang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Lab of Neuro-oncology, Tianjin Neurological Institute, Tianjin, 300052, China.,Key Laboratory of Post-Neuro Injury Neuro-repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, 300052, China
| | - Jixing Zhao
- Department of Neurosurgery, Tianjin Medical University General Hospital, Lab of Neuro-oncology, Tianjin Neurological Institute, Tianjin, 300052, China.,Key Laboratory of Post-Neuro Injury Neuro-repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, 300052, China
| | - Xiaoteng Cui
- Department of Neurosurgery, Tianjin Medical University General Hospital, Lab of Neuro-oncology, Tianjin Neurological Institute, Tianjin, 300052, China.,Key Laboratory of Post-Neuro Injury Neuro-repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, 300052, China
| | - Qi Zhan
- Tianjin Key Laboratory of Composite and Functional Materials, School of Material Science and Engineering, Tianjin University, Tianjin, 300072, China
| | - Kaikai Yi
- Department of Neuro-Oncology and Neurosurgery, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy of Tianjin, Tianjin's Clinical Research Center for Cancer, Tianjin 300060, China
| | - Qixue Wang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Lab of Neuro-oncology, Tianjin Neurological Institute, Tianjin, 300052, China.,Key Laboratory of Post-Neuro Injury Neuro-repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, 300052, China
| | - Menglin Xiao
- Department of Neurosurgery, Affiliated Hospital of Hebei University, Hebei Key Laboratory of Precise Diagnosis and Treatment of Glioma, Baoding, 071000, China
| | - Yanli Tan
- Department of Pathology, Affiliated Hospital of Hebei University, Department of Pathology, Hebei University School of Basic Medical Sciences, Baoding, 071000, China
| | - Biao Hong
- Department of Neurosurgery, Tianjin Medical University General Hospital, Lab of Neuro-oncology, Tianjin Neurological Institute, Tianjin, 300052, China.,Key Laboratory of Post-Neuro Injury Neuro-repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, 300052, China
| | - Chuan Fang
- Department of Neurosurgery, Affiliated Hospital of Hebei University, Hebei Key Laboratory of Precise Diagnosis and Treatment of Glioma, Baoding, 071000, China
| | - Chunsheng Kang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Lab of Neuro-oncology, Tianjin Neurological Institute, Tianjin, 300052, China.,Key Laboratory of Post-Neuro Injury Neuro-repair and Regeneration in Central Nervous System, Ministry of Education and Tianjin City, Tianjin, 300052, China
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Zhu Z, Wang X, Song Z, Zuo X, Ma Y, Zhang Z, Ju C, Liang Z, Li K, Hu X, Wang Z. Photobiomodulation promotes repair following spinal cord injury by restoring neuronal mitochondrial bioenergetics via AMPK/PGC-1α/TFAM pathway. Front Pharmacol 2022; 13:991421. [PMID: 36172183 PMCID: PMC9512226 DOI: 10.3389/fphar.2022.991421] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 08/17/2022] [Indexed: 11/21/2022] Open
Abstract
Background: Insufficient neuronal mitochondrial bioenergetics supply occurs after spinal cord injury (SCI), leading to neuronal apoptosis and impaired motor function. Previous reports have shown that photobiomodulation (PBM) could reduce neuronal apoptosis and promote functional recovery, but the underlying mechanism remains unclear. Therefore, we aimed to investigate whether PBM improved prognosis by promoting neuronal mitochondrial bioenergetics after SCI. Methods: Sprague Dawley rats were randomly divided into four groups: a Sham group, an SCI group, an SCI + PBM group and an SCI + PBM + Compound C group. After SCI model was established, PBM and Compound C (an AMPK inhibitor) injection were carried out. The level of neuron apoptosis, the recovery of motor function and mitochondrial function were observed at different times (7, 14, and 28 days). The AMPK/PGC-1α/TFAM pathway was hypothesized to be a potential target through which PBM could affect neuronal mitochondrial bioenergetics. In vitro, ventral spinal cord 4.1 (VSC4.1) cells were irradiated with PBM and cotreated with Compound C after oxygen and glucose deprivation (OGD). Results: PBM promoted the recovery of mitochondrial respiratory chain complex activity, increased ATP production, alleviated neuronal apoptosis and reversed motor dysfunction after SCI. The activation of the AMPK/PGC-1α/TFAM pathway after SCI were facilitated by PBM but inhibited by Compound C. Equally important, PBM could inhibit OGD-induced VSC4.1 cell apoptosis by increasing ATP production whereas these changes could be abolished by Compound C. Conclusion: PBM activated AMPK/PGC-1α/TFAM pathway to restore mitochondrial bioenergetics and exerted neuroprotective effects after SCI.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Xueyu Hu
- *Correspondence: Zhe Wang, ; Xueyu Hu,
| | - Zhe Wang
- *Correspondence: Zhe Wang, ; Xueyu Hu,
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8
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Isoform-selective HDAC Inhibitor Mocetinostat (MGCD0103) Alleviates Myocardial Ischemia/Reperfusion Injury via Mitochondrial Protection through the HDACs/CREB/PGC-1α Signaling Pathway. J Cardiovasc Pharmacol 2021; 79:217-228. [PMID: 34983914 DOI: 10.1097/fjc.0000000000001174] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 09/28/2021] [Indexed: 11/25/2022]
Abstract
ABSTRACT Over the past decade, histone deacetylases (HDACs) has been proven to manipulate development and exacerbation of cardiovascular diseases, including myocardial ischemia/reperfusion injury (MIRI), cardiac hypertrophy, ventricular remodeling, myocardial fibrosis. Inhibition of histone deacetylases, especially class-I HDACs, is potent to protection of ischemic myocardium after ischemia/reperfusion. Herein, we examine whether mocetinostat (MGCD0103, MOCE), a class-I selective HDAC inhibitor in phase-II clinical trial, conducts cardioprotection under ischemia/reperfusion (I/R) in vivo and vitro, if so, reveal its potential pharmacological mechanism to provide an experimental and theoretical basis for mocetinostat usage in a clinical setting. HCMs were exposed to hypoxia and reoxygenation (H/R), with or without mocetinostat treatment. H/R reduced mitochondrial membrane potential (MMP) and induced HCMs apoptosis. Mocetinostat pre-treatment reversed these H/R-induced mitochondrial damage and cellular apoptosis and upregulated CREB, p-CREB and PGC-1α in HCMs during H/R. Transfection with siRNA against PGC-1α or CREB abolished the protective effects of mocetinostat on cardiomyocytes undergoing H/R. In vivo, mocetinostat was demonstrated to protect myocardial injury posed by myocardial ischemia/reperfusion (I/R) via activation of CREB and upregulation of PGC-1α. Mocetinostat (MGCD0103) can protect myocardium from ischemia/reperfusion injury through mitochondrial protection mediated by CREB/PGC-1α pathway. Therefore, activation of the CREB/PGC-1α signaling pathway via inhibition of Class-I HDACs may be a promising new therapeutic strategy for alleviating myocardial reperfusion injury.
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9
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DU X, Xiao J, Fu X, Xu B, Han H, Wang Y, Pei X. A proteomic analysis of Bcl-2 regulation of cell cycle arrest: insight into the mechanisms. J Zhejiang Univ Sci B 2021; 22:839-855. [PMID: 34636187 DOI: 10.1631/jzus.b2000802] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
B cell lymphoma 2 (Bcl-2) is an important antiapoptotic gene that plays a dual role in the maintenance of the dynamic balance between the survival and death of cancer cells. In our previous study, Bcl-2 was shown to delay the G0/G1 to S phase entry by regulating the mitochondrial metabolic pathways to produce lower levels of adenosine triphosphate (ATP) and reactive oxygen species (ROS). However, the detailed molecular mechanisms or pathways by which Bcl-2 regulates the cell cycle remain unknown. Here, we compared the effects of Bcl-2 overexpression with an empty vector control in the NIH3T3 cell line synchronized by serum starvation, and evaluated the effects using proteomic analysis. The effect of Bcl-2 on cell cycle regulation was detected by monitoring Bcl-2 and p27 expression. The result of subsequent proteomic analysis of Bcl-2 overexpressing cells identified 169 upregulated and 120 downregulated proteins with a 1.5-fold change. These differentially expressed proteins were enriched in a number of signaling pathways predominantly involving the ribosome and oxidative phosphorylation, according to the data of Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses. These results indicated that Bcl-2 potentially acts at the translation level to influence proteins or enzymes of the respiratory chain or in the ribosome, and thereby regulates the cell cycle. Additionally, differentially expressed proteins involved in oxidative phosphorylation were determined to account for most of the effects of Bcl-2 on the cell cycle mediated by the mitochondrial pathway investigated in our previous study. These results can provide assistance for additional in-depth studies on the regulation of the cell cycle by Bcl-2. The results of the proteomic analysis determined the mechanism of Bcl-2-dependent delay of the cell cycle progression. In summary, the results of this study provide a novel mechanistic basis for identifying the key proteins or pathways for designing and developing precisely targeted cancer drugs.
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Affiliation(s)
- Xing DU
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Ningxia Medical University, Yinchuan 750004, China.,Department of Biochemistry and Molecular Biology, Ningxia Medical University, Yinchuan 750004, China
| | - Jingjing Xiao
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Ningxia Medical University, Yinchuan 750004, China.,Department of Physiology and Neurobiology, Ningxia Medical University, Yinchuan 750004, China
| | - Xufeng Fu
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Ningxia Medical University, Yinchuan 750004, China.,Department of Biochemistry and Molecular Biology, Ningxia Medical University, Yinchuan 750004, China
| | - Bo Xu
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Ningxia Medical University, Yinchuan 750004, China
| | - Hang Han
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Ningxia Medical University, Yinchuan 750004, China
| | - Yin Wang
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Ningxia Medical University, Yinchuan 750004, China. .,Department of Physiology and Neurobiology, Ningxia Medical University, Yinchuan 750004, China.
| | - Xiuying Pei
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Ningxia Medical University, Yinchuan 750004, China.
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10
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Kyriakou S, Cheung W, Mantso T, Mitsiogianni M, Anestopoulos I, Veuger S, Trafalis DT, Franco R, Pappa A, Tetard D, Panayiotidis MI. A novel methylated analogue of L-Mimosine exerts its therapeutic potency through ROS production and ceramide-induced apoptosis in malignant melanoma. Invest New Drugs 2021; 39:971-986. [PMID: 33624234 PMCID: PMC8280034 DOI: 10.1007/s10637-021-01087-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 02/11/2021] [Indexed: 01/01/2023]
Abstract
Melanoma is an aggressive and highly metastatic type of skin cancer where the design of new therapies is of utmost importance for the clinical management of the disease. Thus, we have aimed to investigate the mode of action by which a novel methylated analogue of L-Mimosine (e.g., L-SK-4) exerts its therapeutic potency in an in vitro model of malignant melanoma. Cytotoxicity was assessed by the Alamar Blue assay, oxidative stress by commercially available kits, ROS generation, caspase 3/7 activation and mitochondrial membrane depolarisation by flow cytometry, expression of apoptosis-related proteins by western immunoblotting and profiling of lipid biosynthesis by a metabolomic approach. Overall, higher levels of ROS, sphingolipids and apoptosis were induced by L-SK-4 suggesting that the compound's therapeutic potency is mediated through elevated ROS levels which promote the upregulation of sphingolipid (ceramide) biosynthesis thus leading to the activation of both extrinsic and intrinsic apoptosis, in an experimental model of malignant melanoma.
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Affiliation(s)
- Sotiris Kyriakou
- Department of Applied Sciences, Northumbria University, Newcastle Upon Tyne, UK
- Department of Cancer Genetics, Therapeutics & Ultrastructural Pathology, The Cyprus Institute of Neurology & Genetics, Nicosia, Cyprus
- The Cyprus School of Molecular Medicine, The Cyprus Institute of Neurology & Genetics, Nicosia, Cyprus
| | - William Cheung
- Department of Applied Sciences, Northumbria University, Newcastle Upon Tyne, UK
| | - Theodora Mantso
- Department of Applied Sciences, Northumbria University, Newcastle Upon Tyne, UK
| | - Melina Mitsiogianni
- Department of Applied Sciences, Northumbria University, Newcastle Upon Tyne, UK
| | - Ioannis Anestopoulos
- Department of Cancer Genetics, Therapeutics & Ultrastructural Pathology, The Cyprus Institute of Neurology & Genetics, Nicosia, Cyprus
- The Cyprus School of Molecular Medicine, The Cyprus Institute of Neurology & Genetics, Nicosia, Cyprus
| | - Stephany Veuger
- Department of Applied Sciences, Northumbria University, Newcastle Upon Tyne, UK
| | - Dimitris T Trafalis
- Department of Pharmacology, Medical School, National & Kapodistrian University of Athens, Athens, Greece
| | - Rodrigo Franco
- Redox Biology Centre, University of Nebraska, Lincoln, USA
- School of Veterinary Medicine & Biomedical Sciences, University of Nebraska, Lincoln, USA
| | - Aglaia Pappa
- Department of Molecular Biology & Genetics, Democritus University of Thrace, Alexandroupolis, Greece
| | - David Tetard
- Department of Applied Sciences, Northumbria University, Newcastle Upon Tyne, UK
| | - Mihalis I Panayiotidis
- Department of Applied Sciences, Northumbria University, Newcastle Upon Tyne, UK.
- Department of Cancer Genetics, Therapeutics & Ultrastructural Pathology, The Cyprus Institute of Neurology & Genetics, Nicosia, Cyprus.
- The Cyprus School of Molecular Medicine, The Cyprus Institute of Neurology & Genetics, Nicosia, Cyprus.
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11
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Ding L, Wen Y, Zhang X, Zhao F, Lv K, Shi JH, Shen S, Pan X. Transcriptional network constituted of CBP, Ku70, NOX2, and BAX prevents the cell death of necrosis, paraptosis, and apoptosis in human melanoma. Cell Death Discov 2021; 7:40. [PMID: 33637687 PMCID: PMC7910564 DOI: 10.1038/s41420-021-00417-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 01/03/2021] [Accepted: 02/03/2021] [Indexed: 11/20/2022] Open
Abstract
CREB-binding protein (CBP) is an acetyltransferase known to play multiple roles in the transcriptions of genes involving oxidative metabolism, cell cycle, DNA damage checkpoints, and cell death. In this study, CBP was found to positively regulate the expression of Ku70, and both CBP and Ku70 were found to negatively regulate the expression of NOX2, therefore, mitigating the intracellular ROS in human melanoma. Knocking down CBP or Ku70 induced necrotic and paraptotic cell death as indicated by high-level intracellular ROS, cytoplasmic vacuolization, and cell cycle arrest in the S phase. In addition, chromosomal condensations were also observed in the cells proceeding necrotic and paraptotic cell death, which was found to be related to the BAX-associated intrinsic pathway of apoptotic cell death, when Ku70 was decreased either by CBP depletion or by Ku70 depletion directly. Our results, therefore, supported the idea that CBP, Ku70, BAX, and NOX2 have formed a transcriptional network in the prevention of cell death of necrosis, paraptosis, and apoptosis in human melanoma.
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Affiliation(s)
- Liang Ding
- School of Medicine, Hebei University, Baoding, 071002, China
| | - Yalei Wen
- School of Medicine, Hebei University, Baoding, 071002, China
| | - Xin Zhang
- School of Medicine, Hebei University, Baoding, 071002, China
| | - Fang Zhao
- School of Medicine, Hebei University, Baoding, 071002, China
| | - Kenao Lv
- School of Life Science, Beijing Institute of Technology, Beijin, 100081, China
| | - Jian-Hong Shi
- Central Laboratory, Affiliated Hospital of Hebei University, Baoding, 071002, China
| | - Shigang Shen
- School of Chemistry and environmental Science, Hebei University, Baodin, 071002, China
| | - Xuefeng Pan
- School of Medicine, Hebei University, Baoding, 071002, China. .,School of Life Science, Beijing Institute of Technology, Beijin, 100081, China. .,School of Chemistry and environmental Science, Hebei University, Baodin, 071002, China.
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12
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Wang C, Dong L, Li X, Li Y, Zhang B, Wu H, Shen B, Ma P, Li Z, Xu Y, Chen B, Pan S, Fu Y, Huo Z, Jiang H, Wu Y, Ma Y. The PGC1α/NRF1-MPC1 axis suppresses tumor progression and enhances the sensitivity to sorafenib/doxorubicin treatment in hepatocellular carcinoma. Free Radic Biol Med 2021; 163:141-152. [PMID: 33276082 DOI: 10.1016/j.freeradbiomed.2020.11.035] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 11/23/2020] [Accepted: 11/26/2020] [Indexed: 12/24/2022]
Abstract
Targeting energy metabolism holds the potential to effectively treat a variety of malignant diseases, and peroxisome proliferator-activated receptor gamma coactivator 1 alpha (PGC1α) is a key regulator of energy metabolism. However, PGC1α's role in cancer, especially in hepatocellular carcinoma (HCC) remains largely unknown. In the present study, we reported that PGC1α was significantly downregulated in HCC cell lines and specimens. Moreover, reduced expression of PGC1α in tumor cells was correlated with poor prognosis. PGC1α overexpression substantially inhibited cell proliferation and induced apoptosis in vitro and in vivo. On the contrary, the knockdown of PGC1α produced the opposite effect. The mechanism was at least partially due to the upregulation of mitochondrial pyruvate carrier 1 (MPC1) caused by PGC1α, which promoted mitochondrial biogenesis by binding to nuclear respiratory factor 1 (NRF1). Consequently, the production of cellular reactive oxygen species (ROS) caused by mitochondrial oxidation was elevated above a critical threshold for survival. Furthermore, we found that PGC1α could enhance the antitumor activity of sorafenib and doxorubicin in HCC through ROS accumulation-mediated cell death. These results indicate that PGC1α/NRF1-MPC1 axis is involved in HCC progression and could be a promising target for HCC treatment.
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Affiliation(s)
- Chaoqun Wang
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Department of Hepatic Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Liqian Dong
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Department of Hepatic Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xiaozhuang Li
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Department of Hepatic Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yao Li
- Department of Intensive Care Unit, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Bao Zhang
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Department of Hepatic Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Huibo Wu
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Department of Hepatic Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Benqiang Shen
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Department of Hepatic Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Panfei Ma
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Department of Hepatic Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Zuoyu Li
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Department of Hepatic Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yang Xu
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Department of Hepatic Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Bangliang Chen
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Department of Hepatic Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Shangha Pan
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Department of Hepatic Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yao Fu
- Department of Ultrasound, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Zhongqi Huo
- Department of Anatomy and Neuroscience, The University of Melbourne, Parkville, Victoria, Australia
| | - Hongchi Jiang
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Department of Hepatic Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yaohua Wu
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Department of Hepatic Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China; Department of Thyroid Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
| | - Yong Ma
- Key Laboratory of Hepatosplenic Surgery, Ministry of Education, Department of Hepatic Surgery, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
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13
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Fu X, Yang X, Du X, Cui Q. Deciphering the possible role of H2O2 in methylmercury-induced neurotoxicity in Xenopus laevis. Mol Cell Toxicol 2020. [DOI: 10.1007/s13273-020-00082-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Abstract
Backgrounds
Methylmercury (MeHg) is regarded as a developmental neurotoxicant but the detailed mechanism remains not completely clear.
Methods
The Xenopus laevis embryos were exposed to methylmercury chloride and the expression of neurodevelopment and oxidative stress genes was detected by qRT-PCR or Western blotting. PC12 cells were exposed to various levels of H2O2, and then cell cycle, neurite length, neurodevelopment-related genes, protein expression of apoptosis and autophagy were detected.
Results
The genes of neurodevelopment and oxidative stress were disrupted by methylmercury chloride and H2O2 were increased interestingly in X. laevis embryos. Then, PC12 cells were exposed to H2O2 and the results showed the cell cycle, neurite length, and neurodevelopment-related genes, the proteins apoptosis and autophagy were changed.
Conclusion
These results supported the idea that neurodevelopment-related gene expression was regulated by oxidative stress and that apoptosis and autophagy pathways were activated by H2O2 and involved in methylmercury neurotoxicity.
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14
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Cyclin-Dependent Kinase and Antioxidant Gene Expression in Cancers with Poor Therapeutic Response. Pharmaceuticals (Basel) 2020; 13:ph13020026. [PMID: 32033319 PMCID: PMC7169466 DOI: 10.3390/ph13020026] [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: 01/01/2020] [Revised: 01/26/2020] [Accepted: 01/30/2020] [Indexed: 11/23/2022] Open
Abstract
Pancreatic cancer, hepatocellular carcinoma (HCC), and mesothelioma are treatment-refractory cancers, and patients afflicted with these cancers generally have a very poor prognosis. The genomics of these tumors were analyzed as part of The Cancer Genome Atlas (TCGA) project. However, these analyses are an overview and may miss pathway interactions that could be exploited for therapeutic targeting. In this study, the TCGA Pan-Cancer datasets were queried via cBioPortal for correlations among mRNA expression of key genes in the cell cycle and mitochondrial (mt) antioxidant defense pathways. Here we describe these correlations. The results support further evaluation to develop combination treatment strategies that target these two critical pathways in pancreatic cancer, hepatocellular carcinoma, and mesothelioma.
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15
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Bruns I, Sauer B, Burger MC, Eriksson J, Hofmann U, Braun Y, Harter PN, Luger AL, Ronellenfitsch MW, Steinbach JP, Rieger J. Disruption of peroxisome proliferator-activated receptor γ coactivator (PGC)-1α reverts key features of the neoplastic phenotype of glioma cells. J Biol Chem 2018; 294:3037-3050. [PMID: 30578297 DOI: 10.1074/jbc.ra118.006993] [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: 12/07/2018] [Indexed: 12/30/2022] Open
Abstract
The peroxisome proliferator-activated receptor γ coactivator (PGC)-1α is a master regulator of mitochondrial biogenesis and controls metabolism by coordinating transcriptional events. Here, we interrogated whether PGC-1α is involved in tumor growth and the metabolic flexibility of glioblastoma cells. PGC-1α was expressed in a subset of established glioma cell lines and primary glioblastoma cell cultures. Furthermore, a higher PGC-1α expression was associated with an adverse outcome in the TCGA glioblastoma dataset. Suppression of PGC-1α expression by shRNA in the PGC-1α-positive U343MG glioblastoma line suppressed mitochondrial gene expression, reduced mitochondrial membrane potential, and diminished oxygen as well as glucose consumption, and lactate production. Compatible with the known PGC-1α functions in reactive oxygen species (ROS) metabolism, glioblastoma cells deficient in PGC-1α displayed ROS accumulation, had reduced RNA levels of proteins involved in ROS detoxification, and were more susceptible to death induction by H2O2 compared with control cells. PGC-1αsh cells also had impaired proliferation and migration rates in vitro and displayed less stem cell characteristics. Complementary effects were observed in PGC-1α-low LNT-229 cells engineered to overexpress PGC-1α. In an in vivo xenograft experiment, tumors formed by U343MG PGC-1αsh glioblastoma cells grew much slower than control tumors and were less invasive. Interestingly, the PGC-1α knockdown conferred protection against hypoxia-induced cell death, probably as a result of less active anabolic pathways, and this effect was associated with reduced epidermal growth factor expression and mammalian target of rapamycin signaling. In summary, PGC-1α modifies the neoplastic phenotype of glioblastoma cells toward more aggressive behavior and therefore makes PGC-1α a potential target for anti-glioblastoma therapies.
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Affiliation(s)
- Ines Bruns
- From the Dr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Goethe University, 60528 Frankfurt, Germany.,the German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, 60590 Frankfurt.,the German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany.,the University Cancer Center (UCT), University Hospital Frankfurt, Goethe University, 60590 Frankfurt, Germany
| | - Benedikt Sauer
- From the Dr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Goethe University, 60528 Frankfurt, Germany.,the German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, 60590 Frankfurt.,the German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany.,the University Cancer Center (UCT), University Hospital Frankfurt, Goethe University, 60590 Frankfurt, Germany
| | - Michael C Burger
- From the Dr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Goethe University, 60528 Frankfurt, Germany.,the German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, 60590 Frankfurt.,the German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany.,the University Cancer Center (UCT), University Hospital Frankfurt, Goethe University, 60590 Frankfurt, Germany
| | - Jule Eriksson
- From the Dr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Goethe University, 60528 Frankfurt, Germany.,the Department of Neurology, University of Basel, 4031 Basel, Switzerland
| | - Ute Hofmann
- the Dr. Margarete Fischer-Bosch Institute of Clinical Pharmacology, 70376 Stuttgart, Germany.,the University of Tübingen, 72074 Tübingen, Germany
| | - Yannick Braun
- the Institute of Neurology (Edinger Institute), University Hospital Frankfurt, Goethe University, 60528 Frankfurt, Germany, and
| | - Patrick N Harter
- the German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, 60590 Frankfurt.,the German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany.,the University Cancer Center (UCT), University Hospital Frankfurt, Goethe University, 60590 Frankfurt, Germany.,the Institute of Neurology (Edinger Institute), University Hospital Frankfurt, Goethe University, 60528 Frankfurt, Germany, and
| | - Anna-Luisa Luger
- From the Dr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Goethe University, 60528 Frankfurt, Germany.,the German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, 60590 Frankfurt.,the German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany.,the University Cancer Center (UCT), University Hospital Frankfurt, Goethe University, 60590 Frankfurt, Germany
| | - Michael W Ronellenfitsch
- From the Dr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Goethe University, 60528 Frankfurt, Germany, .,the German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, 60590 Frankfurt.,the German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany.,the University Cancer Center (UCT), University Hospital Frankfurt, Goethe University, 60590 Frankfurt, Germany
| | - Joachim P Steinbach
- From the Dr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Goethe University, 60528 Frankfurt, Germany, .,the German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, 60590 Frankfurt.,the German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany.,the University Cancer Center (UCT), University Hospital Frankfurt, Goethe University, 60590 Frankfurt, Germany
| | - Johannes Rieger
- From the Dr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Goethe University, 60528 Frankfurt, Germany.,the Interdisciplinary Division of Neuro-Oncology, Hertie Institute of Clinical Brain Research, University Hospital Tübingen, 72076 Tübingen, Germany
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16
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Yao K, Fu XF, Du X, Li Y, Yang SS, Yu M, Cui QH. PGC-1α coordinates with Bcl-2 to control the cell cycle in U251 cells through reducing ROS. J Zhejiang Univ Sci B 2018. [DOI: 10.1631/jzus.b1700148] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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17
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Song B, Li X, Ma J, Yu L, Feng Z, Liu Z, Cui Y. Prokaryotic Expression and Anti-IBDV Activity of Chicken Interleukin-18 and Interferon-γ. Cytogenet Genome Res 2017; 153:36-45. [DOI: 10.1159/000481522] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/19/2017] [Indexed: 12/12/2022] Open
Abstract
Interferon-γ (IFN-γ), a cytokine produced by activated natural killer cells and T lymphocytes, is an important regulator of innate and adaptive immunity. Interleukin (IL)-18, also known as IFN-γ-inducing factor, is a cytokine that induces T and natural killer cells to produce IFN-γ. In this study, the chicken IL-18 (ChIL-18) and chicken IFN-γ (ChIFN-γ) genes were inserted into the pET28a prokaryotic expression vector, resulting in pET28a-IL-18 and pET28a-IFN-γ, respectively. These plasmids were transformed into Escherichia coli strain BL21, and the ChIL-18 and ChIFN-γ proteins were expressed and purified. To determine their antiviral activities, 200 ng/mL of ChIL-18 and/or ChIFN-γ were inoculated into chicken embryonic fibroblast cells. After 24 h, one 50% tissue culture infective dose (TCID50) of infectious bursal disease virus (IBDV) was inoculated into the chicken embryonic fibroblast cells. The results showed that the antiviral effect of ChIL-18 and ChIFN-γ in combination was better than that of ChIL-18 or ChIFN-γ alone. Next, 14-day-old chicken were injected with 200 µg of ChIL-18 and/or ChIFN-γ and then were challenged with 103 TCID50 of IBDV via intraperitoneal injection. The results showed that the proliferation of IBDV was inhibited by the injection of the recombinant proteins, especially the combination of ChIL-18 and ChIFN-γ, as evidenced by cytokine detection, quantitative PCR, and pathology analyses. These results indicate that ChIL-18 and ChIFN-γ could inhibit IBDV infection and the combination of ChIL-18 and ChIFN-γ has a better inhibitory effect than either cytokine alone.
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18
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Fu X, Yan Y, Li S, Wang J, Jiang B, Wang H, Duan Y, Tan T, Gao F, Gong D, Niu Y, Ji W, Zheng B, Si W. Vitrification of Rhesus Macaque Mesenchymal Stem Cells and the Effects on Global Gene Expression. Stem Cells Int 2017; 2017:3893691. [PMID: 29204157 PMCID: PMC5674518 DOI: 10.1155/2017/3893691] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 07/20/2017] [Accepted: 08/07/2017] [Indexed: 12/12/2022] Open
Abstract
Mesenchymal stem cells (MSCs) are one of the most promising adult stem cells for clinical application in a cell therapy. The development of large-scale cryopreservation techniques, such as vitrification, for MSCs is a prerequisite for clinical therapies. Dimethyl sulfoxide (DMSO) and ethylene glycol (EG) are two types of cryoprotectants widely used for cell vitrification. However, the effects of DMSO and EG on the biological characteristics and transcriptome profiles of MSCs after cryopreservation remain unknown. In the present study, the viability, immunophenotype of cell surface markers, proliferation, differentiation potency, and global gene expression of rhesus macaque bone marrow-derived MSCs vitrified using DMSO and EG were studied. The results showed that vitrification did not affect the morphology, surface markers, and differentiation of the MSCs, and compared to DMSO, EG better protected cell viability and proliferation. Most importantly, vitrification resulted in changes in a large number of transcripts of MSCs either preserved using DMSO or EG. This report is the first to examine the effects of DMSO and EG on global gene expression in stem cells. These results will be beneficial to understanding the biological process involved in MSC vitrification and will contribute to improving cryopreservation protocols that maintain transcriptomic identity with high cryosurvival for preclinical research and clinical long-term storage.
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Affiliation(s)
- Xufeng Fu
- Yunnan Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming 650500, China
- School of Medicine, Yunnan University, Kunming 650091, China
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, Ningxia Medical University, Yinchuan 750004, China
| | - Yaping Yan
- Yunnan Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming 650500, China
| | - Shanshan Li
- Yunnan Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming 650500, China
| | - Junfeng Wang
- Department of Hepatic and Bile Duct Surgery, The First People's Hospital of Yunnan Province, Kunming 650032, China
| | - Bin Jiang
- Yunnan Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming 650500, China
| | - Hong Wang
- Yunnan Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming 650500, China
- Yunnan Provincial Academy of Science and Technology, Kunming 650500, China
| | - Yanchao Duan
- Yunnan Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming 650500, China
| | - Tao Tan
- Yunnan Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming 650500, China
- Yunnan Provincial Academy of Science and Technology, Kunming 650500, China
- Kunming Ennovate Institute of Bioscience, Kunming 650500, China
| | - Fei Gao
- Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Desheng Gong
- Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Yuyu Niu
- Yunnan Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming 650500, China
- Yunnan Provincial Academy of Science and Technology, Kunming 650500, China
- Kunming Ennovate Institute of Bioscience, Kunming 650500, China
| | - Weizhi Ji
- Yunnan Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming 650500, China
- Yunnan Provincial Academy of Science and Technology, Kunming 650500, China
- Kunming Ennovate Institute of Bioscience, Kunming 650500, China
| | - Bingrong Zheng
- School of Medicine, Yunnan University, Kunming 650091, China
| | - Wei Si
- Yunnan Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming 650500, China
- Yunnan Provincial Academy of Science and Technology, Kunming 650500, China
- Kunming Ennovate Institute of Bioscience, Kunming 650500, China
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19
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Multi-regulatory network of ROS: the interconnection of ROS, PGC-1 alpha, and AMPK-SIRT1 during exercise. J Physiol Biochem 2017; 73:487-494. [DOI: 10.1007/s13105-017-0576-y] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 06/29/2017] [Indexed: 01/20/2023]
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20
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Zhou CX, Shi LY, Li RC, Liu YH, Xu BQ, Liu JW, Yuan B, Yang ZX, Ying XY, Zhang D. GTPase-activating protein Elmod2 is essential for meiotic progression in mouse oocytes. Cell Cycle 2017; 16:852-860. [PMID: 28324667 DOI: 10.1080/15384101.2017.1304329] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Meiotic failure in oocytes is the major determinant of human zygote-originated reproductive diseases, the successful accomplishment of meiosis largely relay on the normal functions of many female fertility factors. Elmod2 is a member of the Elmod family with the strongest GAP (GTPase-activating protein) activity; although it was identified as a possible maternal protein, its actual physiologic role in mammalian oocytes has not been elucidated. Herein we reported that among Elmod family proteins, Elmod2 is the most abundant in mouse oocytes, and that inhibition of Elmod2 by specific siRNA caused severe meiotic delay and abnormal chromosomal segregation during anaphase. Elmod2 knockdown also significantly decreased the rate of oocyte maturation (to MII, with first polar body extrusion), and significantly greater numbers of Elmod2-knockdown MII oocytes were aneuploid. Correspondingly, Elmod2 knockdown dramatically decreased fertilization rate. To investigate the mechanism(s) involved, we found that Elmod2 knockdown caused significantly more abnormal mitochondrial aggregation and diminished cellular ATP levels; and we also found that Elmod2 co-localized and interacted with Arl2, a GTPase that is known to maintain mitochondrial dynamics and ATP levels in oocytes. In summary, we found that Elmod2 is the GAP essential to meiosis progression of mouse oocytes, most likely by regulating mitochondrial dynamics.
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Affiliation(s)
- Chun-Xiang Zhou
- a State Key Lab of Reproductive Medicine , Nanjing Medical University , Nanjing , Jiangsu , P.R. China
| | - Li-Ya Shi
- a State Key Lab of Reproductive Medicine , Nanjing Medical University , Nanjing , Jiangsu , P.R. China
| | - Rui-Chao Li
- b Liuzhou Worker's Hospital , Liuzhou , Guangxi , China
| | - Ya-Hong Liu
- c The Second Affiliated Hospital , Nanjing Medical University , Nanjing , Jiangsu , China
| | - Bo-Qun Xu
- c The Second Affiliated Hospital , Nanjing Medical University , Nanjing , Jiangsu , China
| | - Jin-Wei Liu
- d Department of Gynecology , Zhejiang Provincial People's Hospital , Hangzhou , Zhejiang , China
| | - Bo Yuan
- e Wenxi Agriculture Committee , Yuncheng , Shanxi , China
| | - Zhi-Xia Yang
- a State Key Lab of Reproductive Medicine , Nanjing Medical University , Nanjing , Jiangsu , P.R. China
| | - Xiao-Yan Ying
- c The Second Affiliated Hospital , Nanjing Medical University , Nanjing , Jiangsu , China
| | - Dong Zhang
- a State Key Lab of Reproductive Medicine , Nanjing Medical University , Nanjing , Jiangsu , P.R. China
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Du X, Fu X, Yao K, Lan Z, Xu H, Cui Q, Yang E. Bcl-2 delays cell cycle through mitochondrial ATP and ROS. Cell Cycle 2017; 16:707-713. [PMID: 28278051 DOI: 10.1080/15384101.2017.1295182] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Bcl-2 inhibits cell proliferation by delaying G0/G1 to S phase entry. We tested the hypothesis that Bcl-2 regulates S phase entry through mitochondrial pathways. Existing evidence indicates mitochondrial adenosine tri-phosphate (ATP) and reactive oxygen species (ROS) are important signals in cell survival and cell death, however, the molecular details of how these 2 processes are linked remain unknown. In this study, 2 cell lines stably expressing Bcl-2, 3T3Bcl-2 and C3HBcl-2, and vector-alone PB controls were arrested in G0/G1 phase by serum starvation and contact inhibition, and ATP and ROS were measured during re-stimulation of cell cycle entry. Both ATP and ROS levels were decreased in G0/G1 arrested cells compared with normal growing cells. In addition, ROS levels were significant lower in synchronized Bcl-2 cells than those in PB controls. After re-stimulation, ATP levels increased with time, reaching peak value 1-3 hours ahead of S phase entry for both Bcl-2 cells and PB controls. Consistent with 2 hours of S phase delay, Bcl-2 cells reached ATP peaks 2 hours later than PB control, which suggests a rise in ATP levels is required for S phase entry. To examine the role of ATP and ROS in cell cycle regulation, ATP and ROS level were changed. We observed that elevation of ATP accelerated cell cycle progression in both PB and Bcl-2 cells, and decrease of ATP and ROS to the level equivalent to Bcl-2 cells delayed S phase entry in PB cells. Our results support the hypothesis that Bcl-2 protein regulates mitochondrial metabolism to produce less ATP and ROS, which contributes to S phase entry delay in Bcl-2 cells. These findings reveal a novel mechanistic basis for understanding the link between mitochondrial metabolism and tumor-suppressive function of Bcl-2.
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Affiliation(s)
- Xing Du
- a School of Life Sciences , Yunnan University , Kunming , Yunnan , P.R. China
| | - Xufeng Fu
- a School of Life Sciences , Yunnan University , Kunming , Yunnan , P.R. China
| | - Kun Yao
- a School of Life Sciences , Yunnan University , Kunming , Yunnan , P.R. China
| | - Zhenwei Lan
- a School of Life Sciences , Yunnan University , Kunming , Yunnan , P.R. China
| | - Hui Xu
- a School of Life Sciences , Yunnan University , Kunming , Yunnan , P.R. China
| | - Qinghua Cui
- a School of Life Sciences , Yunnan University , Kunming , Yunnan , P.R. China.,b Key Laboratory for Tumor Molecular Biology in Yunnan Province , Yunnan University , Kunming , Yunnan , P.R. China
| | - Elizabeth Yang
- c Center for Cancer and Blood Disorders of Northern Virginia , Falls Church , VA , USA
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