1
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Chang H, Chen J, Ding K, Cheng T, Tang S. Highly-expressed lncRNA FOXD2-AS1 in adipose mesenchymal stem cell derived exosomes affects HaCaT cells via regulating miR-185-5p/ROCK2 axis. Adipocyte 2023; 12:2173513. [PMID: 36775902 PMCID: PMC9928455 DOI: 10.1080/21623945.2023.2173513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/14/2023] Open
Abstract
The healing of skin wounds is a highly coordinated multi-step process that occurs after trauma including surgical incisions, thermal burns, and chronic ulcers. In this study, the authors investigated lncRNA FOXD2-AS1 function in adipose mesenchymal exosomes from ADMSCs that were successfully extracted. Highly expressed lncRNA FOXD2-AS1 in ADMSCs-exosomes accelerated HaCaT cell migration and proliferation. LncRNA FOXD2-AS1 negatively targeted miR-185-5p, and miR-185-5p negatively targeted ROCK2. Highly expressed lncRNA FOXD2-AS1 in ADMSCs-exosomes promoted HaCaT cell migration and proliferation via down-regulating miR-185-5p and further up-regulating ROCK2. In conclusion, LncRNA FOXD2-AS1 overexpression in ADMSCs derived exosomes might accelerate HaCaT cell migration and proliferation via modulating the miR-185-5p/ROCK2 axis.
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Affiliation(s)
- Huanchao Chang
- Plastic Surgery of Plastic Surgery Hospital, Weifang Medical University, Weifang, China
| | - Junliang Chen
- Vascular surgery department, Affiliated Hospital of Weifang Medical College, Weifang, China
| | - Kun Ding
- Plastic Surgery of Plastic Surgery Hospital, Weifang Medical University, Weifang, China
| | - Tianling Cheng
- Burn plastic surgery, The First Affiliated Hospital of Xi’an Medical University, Xi’an, China
| | - Shengjian Tang
- Plastic Surgery of Plastic Surgery Hospital, Weifang Medical University, Weifang, China,CONTACT Shengjian Tang Plastic Surgery Institute, Weifang Medical University, 4948 Shengli East Street, Kuiwen District, Weifang, 261041, China
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2
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Veitch CR, Power AS, Erickson JR. CaMKII Inhibition is a Novel Therapeutic Strategy to Prevent Diabetic Cardiomyopathy. Front Pharmacol 2021; 12:695401. [PMID: 34381362 PMCID: PMC8350113 DOI: 10.3389/fphar.2021.695401] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 07/14/2021] [Indexed: 11/24/2022] Open
Abstract
Increasing prevalence of diabetes mellitus worldwide has pushed the complex disease state to the foreground of biomedical research, especially concerning its multifaceted impacts on the cardiovascular system. Current therapies for diabetic cardiomyopathy have had a positive impact, but with diabetic patients still suffering from a significantly greater burden of cardiac pathology compared to the general population, the need for novel therapeutic approaches is great. A new therapeutic target, calcium/calmodulin-dependent kinase II (CaMKII), has emerged as a potential treatment option for preventing cardiac dysfunction in the setting of diabetes. Within the last 10 years, new evidence has emerged describing the pathophysiological consequences of CaMKII activation in the diabetic heart, the mechanisms that underlie persistent CaMKII activation, and the protective effects of CaMKII inhibition to prevent diabetic cardiomyopathy. This review will examine recent evidence tying cardiac dysfunction in diabetes to CaMKII activation. It will then discuss the current understanding of the mechanisms by which CaMKII activity is enhanced during diabetes. Finally, it will examine the benefits of CaMKII inhibition to treat diabetic cardiomyopathy, including contractile dysfunction, heart failure with preserved ejection fraction, and arrhythmogenesis. We intend this review to serve as a critical examination of CaMKII inhibition as a therapeutic strategy, including potential drawbacks of this approach.
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Affiliation(s)
- Christopher R Veitch
- Department of Physiology and HeartOtago, University of Otago, Dunedin, New Zealand
| | - Amelia S Power
- Department of Physiology and HeartOtago, University of Otago, Dunedin, New Zealand
| | - Jeffrey R Erickson
- Department of Physiology and HeartOtago, University of Otago, Dunedin, New Zealand
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3
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ROCK Inhibition as Potential Target for Treatment of Pulmonary Hypertension. Cells 2021; 10:cells10071648. [PMID: 34209333 PMCID: PMC8303917 DOI: 10.3390/cells10071648] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/17/2021] [Accepted: 06/23/2021] [Indexed: 02/07/2023] Open
Abstract
Pulmonary hypertension (PH) is a cardiovascular disease caused by extensive vascular remodeling in the lungs, which ultimately leads to death in consequence of right ventricle (RV) failure. While current drugs for PH therapy address the sustained vasoconstriction, no agent effectively targets vascular cell proliferation and tissue inflammation. Rho-associated protein kinases (ROCKs) emerged in the last few decades as promising targets for PH therapy, since ROCK inhibitors demonstrated significant anti-remodeling and anti-inflammatory effects. In this review, current aspects of ROCK inhibition therapy are discussed in relation to the treatment of PH and RV dysfunction, from cell biology to preclinical and clinical studies.
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4
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Yang BG, Yuan Y, Zhou DK, Ma YH, Mahrous KF, Wang SZ, He YM, Duan XH, Zhang WY, E G. Genome-wide selection signal analysis of Australian Boer goat reveals artificial selection imprinting on candidate genes related to muscle development. Anim Genet 2021; 52:550-555. [PMID: 34029388 DOI: 10.1111/age.13092] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/07/2021] [Indexed: 12/25/2022]
Abstract
As one of the best-known commercial goat breeds in the world, Boer goat has undergone long-term artificial selection for nearly 100 years, and its excellent growth rate and meat production performance have attracted considerable worldwide attention. Herein, we used single nucleotide polymorphisms (SNPs) called from the whole-genome sequencing data of 46 Australian Boer goats to detect polymorphisms and identify genomic regions related to muscle development in comparison with those of 81 non-specialized meat goat individuals from Europe, Africa, and Asia. A total of 13 795 202 SNPs were identified, and the whole-genome selective signal screen with a π ratio of nucleotide diversity (πcase /πcontrol ) and pairwise fixation index (FST ) was analyzed. Finally, we identified 1741 candidate selective windows based on the top 5% threshold of both parameters; here, 449 candidate genes were only found in 727 of these regions. A total of 433 genes out of the 449 genes obtained were annotated to 2729 gene ontology terms, of which 51 were directly linked to muscle development (e.g., muscle organ development, muscle cell differentiation) by 30 candidate genes (e.g., JAK2, KCNQ1, PDE5A, PDLIM5, TBX5). In addition, 246 signaling pathways were annotated by 178 genes, and two pathways related to muscle contraction, including vascular smooth muscle contraction (ADCY7, PRKCB, PLA2G4E, ROCK2) and cardiac muscle contraction (CACNA2D3, CASQ2, COX6B1), were identified. The results could improve the current understanding of the genetic effects of artificial selection on the muscle development of goat. More importantly, this study provides valuable candidate genes for future breeding of goats.
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Affiliation(s)
- B-G Yang
- College of Animal Science and Technology, Southwest University, Chongqing, 400715, China
| | - Y Yuan
- College of Animal Science and Technology, Southwest University, Chongqing, 400715, China
| | - D-K Zhou
- College of Animal Science and Technology, Southwest University, Chongqing, 400715, China
| | - Y-H Ma
- Institute of Animal Science, Chinese Academy of Agricultural Sciences (CAAS), Beijing, 100193, China
| | - K-F Mahrous
- Division of Genetic Engineering and Biotechnology Research Cell, Biology Department, National Research Centre, Dokki, Giza, 12622, Egypt
| | - S-Z Wang
- College of Animal Science and Technology, Southwest University, Chongqing, 400715, China
| | - Y-M He
- College of Animal Science and Technology, Southwest University, Chongqing, 400715, China
| | - X-H Duan
- College of Animal Science and Technology, Southwest University, Chongqing, 400715, China
| | - W-Y Zhang
- College of Animal Science and Technology, Southwest University, Chongqing, 400715, China
| | - Guangxin E
- College of Animal Science and Technology, Southwest University, Chongqing, 400715, China
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5
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Ma K, Ma G, Guo Z, Liu G, Liang W. Regulatory mechanism of calcium/calmodulin-dependent protein kinase II in the occurrence and development of ventricular arrhythmia (Review). Exp Ther Med 2021; 21:656. [PMID: 33968186 PMCID: PMC8097202 DOI: 10.3892/etm.2021.10088] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 02/05/2021] [Indexed: 11/24/2022] Open
Abstract
Ventricular arrhythmia (VA) is a highly fatal arrhythmia that involves multiple ion channels. Of all sudden cardiac death events, ~85% result from VAs, including ventricular tachycardia and ventricular fibrillation. Calcium/calmodulin-dependent pro-tein kinase II (CaMKII) is an important ion channel regulator that participates in the excitation-contraction coupling of the heart, and as such is important for regulating its electrophysiological function. CaMKII can be activated in a Ca2+/calmodulin (CaM)-dependent or Ca2+/CaM-independent manner, serving a key role in the occurrence and development of VA. The present review aimed to determine whether activated CaMKII induces early afterdepolarizations and delayed afterdepolarizations that result in VA by regulating sodium, potassium and calcium ions. Assessing VA mechanisms based on the CaMKII pathway is of great significance to the clinical treatment of VA and the de-velopment of effective drugs for use in clinical practice.
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Affiliation(s)
- Kexin Ma
- Graduate School, Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
| | - Guoping Ma
- The First Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
| | - Zijing Guo
- College of Integrated Traditional Chinese and Western Medicine, Hebei University of Chinese Medicine, Shijiazhuang, Hebei 050200, P.R. China
| | - Gang Liu
- The First Hospital of Hebei Medical University, Shijiazhuang, Hebei 050000, P.R. China
| | - Wenjie Liang
- College of Integrated Traditional Chinese and Western Medicine, Hebei University of Chinese Medicine, Shijiazhuang, Hebei 050200, P.R. China
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Liu X, Guo B, Zhang W, Ma B, Li Y. MiR-20a-5p overexpression prevented diabetic cardiomyopathy via inhibition of cardiomyocyte apoptosis, hypertrophy, fibrosis, and JNK/NF-κB signaling pathway. J Biochem 2021; 170:349-362. [PMID: 33837411 DOI: 10.1093/jb/mvab047] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 04/02/2021] [Indexed: 12/13/2022] Open
Abstract
Diabetic cardiomyopathy (DCM) is a common cardiovascular disease. A declined miR-20a-5p was observed in hearts of diabetic mice, while its effect on DCM remains unknown. Herein, we established streptozotocin-induced DCM rat model and high glucose-stimulated H9C2 model of DCM. They then were treated with adenovirus expressing miR-20a-5p to explore the function of miR-20a-5p. ITT and ipGTT assay revealed that miR-20a-5p reduced blood glucose level. Besides, miR-20a-5p improved cardiac dysfunction reflected by reduced HW/BW and LVDP, and increased LVSP and ±LV dp/dt max. MiR-20a-5p prevented cardiomyocyte apoptosis, along with the up-regulated c-caspase-3, bax and down-regulated bcl-2. Moreover, miR-20a-5p alleviated cardiac hypertrophy as the parameters of ANP, BNP and MyHC-β decreased. Also, miR-20a-5p attenuated the cardiac fibrosis demonstrated by decreased TGF-β1, collagen I levels and the inflammatory response manifested by reduced IL-6, TNF-α and IL-1β production. Furthermore, miR-20a-5p prevented JNK phosphorylation and NF-κB p65nuclear translocation. Similarly, the effects of miR-20a-5p on DCM were confirmed in our in vitro experiments. Additionally, ROCK2 is a possible target gene of miR-20a-5p. ROCK2 overexpression reversed the protective effect of miR-20a-5p on DCM. Overall, miR-20a-5p may effectively ameliorate DCM through improving cardiac metabolism, and subsequently inhibiting inflammation, apoptosis, hypertrophy, fibrosis, and JNK/NF-κB pathway via modulating ROCK2.
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Affiliation(s)
- Xiaoyu Liu
- Department of Cardiology, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, China.,The Third Department of Cardiology, Cangzhou Central Hospital, Cangzhou, 061000, China
| | - Bingyan Guo
- Department of Cardiology, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, China
| | - Wei Zhang
- The Third Department of Cardiology, Cangzhou Central Hospital, Cangzhou, 061000, China
| | - Bocong Ma
- The Third Department of Cardiology, Cangzhou Central Hospital, Cangzhou, 061000, China
| | - Yongjun Li
- Department of Cardiology, The Second Hospital of Hebei Medical University, Shijiazhuang, 050000, China
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Deng B, Deng J, Yi X, Zou Y, Li C. ROCK2 Promotes Osteosarcoma Growth and Glycolysis by Up-Regulating HKII via Phospho-PI3K/AKT Signalling. Cancer Manag Res 2021; 13:449-462. [PMID: 33500659 PMCID: PMC7823140 DOI: 10.2147/cmar.s279496] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Accepted: 10/24/2020] [Indexed: 01/14/2023] Open
Abstract
Background Osteosarcoma (OS) is a malignant bone tumour that exhibits a high mortality. While tumours thrive in a state of malnutrition, the mechanism by which OS cells adapt to metabolic stress through metabolic reprogramming remains unclear. Methods We analysed the expression of ROCK2 in osteosarcoma tissues by RT-qPCR and Western blot. Cell proliferation were analysed using CCK8, EdU and colony formation assays. The level of cell glycolysis was detected by glucose-6 phosphate, glucose consumption, lactate production and ATP levels. Results Herein, our study showed that ROCK2 expression in OS tissues was higher than in adjacent tissues. Functional assays have demonstrated that ROCK2 contributes to the growth of OS cells by inducing aerobic glycolysis. The current study revealed that ROCK2 knockdown decreased the levels of mitochondrial hexokinase II (HKII). And also indicated that ROCK2 served as a key enzyme in glycolysis and that it served an important role in tumour growth. A significant positive correlation was identified between the mRNA and protein expressions of ROCK2 and HKII, further demonstrating that ROCK2-induced glycolysis and proliferation was dependent on HKII expression in OS cells. Mechanistically, ROCK2 promotes HKII expression by activating the phospho-PI3K/AKT signalling pathway. Conclusion Taken together, the results of the current study linked the two drivers of OS growth and aerobic glycolysis and identified a new mechanism of ROCK2 control in OS.
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Affiliation(s)
- Binbin Deng
- Department of Orthopedics, Second Affiliated Hospital of Nanchang University, Nanchang, People's Republic of China
| | - Jianyong Deng
- Department of Orthopedics, Second Affiliated Hospital of Nanchang University, Nanchang, People's Republic of China
| | - Xuan Yi
- Department of Orthopedics, Second Affiliated Hospital of Nanchang University, Nanchang, People's Republic of China
| | - Yeqing Zou
- Jiangxi Province Key Laboratory of Molecular Medicine, Second Affiliated Hospital of Nanchang University, Nanchang, People's Republic of China
| | - Chen Li
- Department of Orthopedics, Second Affiliated Hospital of Nanchang University, Nanchang, People's Republic of China
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8
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Neuron-derived orphan receptor-1 modulates cardiac gene expression and exacerbates angiotensin II-induced cardiac hypertrophy. Clin Sci (Lond) 2020; 134:359-377. [PMID: 31985010 DOI: 10.1042/cs20191014] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 01/21/2020] [Accepted: 01/27/2020] [Indexed: 12/22/2022]
Abstract
Hypertensive cardiac hypertrophy (HCH) is a common cause of heart failure (HF), a major public health problem worldwide. However, the molecular bases of HCH have not been completely elucidated. Neuron-derived orphan receptor-1 (NOR-1) is a nuclear receptor whose role in cardiac remodelling is poorly understood. The aim of the present study was to generate a transgenic mouse over-expressing NOR-1 in the heart (TgNOR-1) and assess the impact of this gain-of-function on HCH. The CAG promoter-driven transgenesis led to viable animals that over-expressed NOR-1 in the heart, mainly in cardiomyocytes and also in cardiofibroblasts. Cardiomyocytes from TgNOR-1 exhibited an enhanced cell surface area and myosin heavy chain 7 (Myh7)/Myh6 expression ratio, and increased cell shortening elicited by electric field stimulation. TgNOR-1 cardiofibroblasts expressed higher levels of myofibroblast markers than wild-type (WT) cells (α 1 skeletal muscle actin (Acta1), transgelin (Sm22α)) and were more prone to synthesise collagen and migrate. TgNOR-1 mice experienced an age-associated remodelling of the left ventricle (LV). Angiotensin II (AngII) induced the cardiac expression of NOR-1, and NOR-1 transgenesis exacerbated AngII-induced cardiac hypertrophy and fibrosis. This effect was associated with the up-regulation of hypertrophic (brain natriuretic peptide (Bnp), Acta1 and Myh7) and fibrotic markers (collagen type I α 1 chain (Col1a1), Pai-1 and lysyl oxidase-like 2 (Loxl2)). NOR-1 transgenesis up-regulated two key genes involved in cardiac hypertrophy (Myh7, encoding for β-myosin heavy chain (β-MHC)) and fibrosis (Loxl2, encoding for the extracellular matrix (ECM) modifying enzyme, Loxl2). Interestigly, in transient transfection assays, NOR-1 drove the transcription of Myh7 and Loxl2 promoters. Our findings suggest that NOR-1 is involved in the transcriptional programme leading to HCH.
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9
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Ocaranza MP, Valderas P, Moya J, Gabrielli L, Godoy I, Córdova S, Nab PM, García L, Farías L, Jalil JE. Rho kinase cascade activation in circulating leukocytes in patients with diabetes mellitus type 2. Cardiovasc Diabetol 2020; 19:56. [PMID: 32375786 PMCID: PMC7203835 DOI: 10.1186/s12933-020-01027-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 04/25/2020] [Indexed: 12/11/2022] Open
Abstract
Background The intracellular ROCK signaling pathway is an important modulator of blood pressure and of cardiovascular and renal remodeling when Rho-kinase activity is increased. Besides, in preclinical models of diabetes, ROCK activation has also a role in abnormal glucose metabolism as well as in subsequent vascular and myocardial dysfunction. In humans, there are a few data assessing ROCK activation in patients with type 2 diabetes mellitus (T2D) and no studies assessing upstream/downstream components of the ROCK pathway. We assessed here levels of ROCK activation and some of the RhoA/ROCK cascade molecules in peripheral blood mononuclear cells (PBMCs) in T2D patients under current treatment. Methods Cross-sectional observational study comparing 28 T2D patients under current antidiabetic treatment with 31 consecutive healthy subjects, matched by age and gender. Circulating levels of malondialdehyde, angiotensin II and inflammatory cytokines IL-6 and IL-8 were determined in all subjects. ROCK activation in PMBCs, upstream and downstream cascade proteins, and levels of the proinflammatory molecules VCAM, ICAM-1 and IL-8 were determined in their PMBCs by Western blot. Results Compared to healthy controls, ROCK activation in T2D patients measured by 2 direct ROCK targets in PBMCs was increased by 420 and 570% (p < 0001) and it correlated significantly with serum glucose levels. p38 MAPK phosphorylation (downstream from ROCK) and JAK-2 (upstream from ROCK) were significantly higher in the T2D patients by 580% and 220%, respectively. In T2D patients, significantly increased PBMC levels of the proinflammatory molecules VCAM-1, ICAM-1 and IL-8 were observed compared to control subjects (by 180%, 360% and 260%, respectively). Circulating levels of Ang II and MDA were significantly higher in T2D patients by 29 and 63%, respectively. Conclusions T2D patients under treatment with glucose-lowering drugs, antihypertensive treatment as well as with statins have significantly increased ROCK activation in their circulating leukocytes along with higher phosphorylation of downstream cascade proteins despite pharmacologic treatment, along with increased plasma angiotensin II and MDA levels. ROCK inhibition might have an additional role in the prevention and treatment of T2D.
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Affiliation(s)
- Maria Paz Ocaranza
- School of Medicine, Division of Cardiovascular Diseases, Pontificia Universidad Católica de Chile, Diagonal Paraguay 362, Piso 7, 8320000, Santiago, Chile.,Center for New Drugs for Hypertension (CENDHY), Pontificia Universidad Católica de Chile, Santiago, Chile.,Advanced Center for Chronic Diseases (ACCDiS), Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Patricio Valderas
- Facultad de Medicina, Odontología, Universidad de Antofagasta, Avenida Argentina 2000, 1240000, Antofagasta, Chile
| | - Jackeline Moya
- School of Medicine, Division of Cardiovascular Diseases, Pontificia Universidad Católica de Chile, Diagonal Paraguay 362, Piso 7, 8320000, Santiago, Chile
| | - Luigi Gabrielli
- School of Medicine, Division of Cardiovascular Diseases, Pontificia Universidad Católica de Chile, Diagonal Paraguay 362, Piso 7, 8320000, Santiago, Chile.,Advanced Center for Chronic Diseases (ACCDiS), Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Iván Godoy
- School of Medicine, Division of Cardiovascular Diseases, Pontificia Universidad Católica de Chile, Diagonal Paraguay 362, Piso 7, 8320000, Santiago, Chile
| | - Samuel Córdova
- School of Medicine, Division of Cardiovascular Diseases, Pontificia Universidad Católica de Chile, Diagonal Paraguay 362, Piso 7, 8320000, Santiago, Chile
| | - Paul Mac Nab
- School of Medicine, Division of Cardiovascular Diseases, Pontificia Universidad Católica de Chile, Diagonal Paraguay 362, Piso 7, 8320000, Santiago, Chile
| | - Lorena García
- Faculty of Chemical and Pharmaceutical Sciences, Advanced Center for Chronic Diseases (ACCDiS), Universidad de Chile, Santiago, Chile
| | - Luis Farías
- School of Medicine, Division of Cardiovascular Diseases, Pontificia Universidad Católica de Chile, Diagonal Paraguay 362, Piso 7, 8320000, Santiago, Chile
| | - Jorge E Jalil
- School of Medicine, Division of Cardiovascular Diseases, Pontificia Universidad Católica de Chile, Diagonal Paraguay 362, Piso 7, 8320000, Santiago, Chile. .,Center for New Drugs for Hypertension (CENDHY), Pontificia Universidad Católica de Chile, Santiago, Chile.
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Soliman H, Nyamandi V, Hove-Madsen L, MacLeod KM. ROCK2 as a novel target for diabetic cardiomyopathy. Int J Cardiol 2020; 299:206. [PMID: 31791538 DOI: 10.1016/j.ijcard.2019.10.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 10/08/2019] [Indexed: 11/17/2022]
Affiliation(s)
- Hesham Soliman
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British, Columbia, Canada and Faculty of Pharmacy, Minia University, Minia, Egypt
| | - Vongai Nyamandi
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British, Columbia, Canada
| | - Leif Hove-Madsen
- Biomedical Research Institute Barcelona IIBB-CSIC, IIB Sant Pau and CIBERCV, Hospital de Sant Pau, 08025, Barcelona, Spain
| | - Kathleen M MacLeod
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, British, Columbia, Canada.
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11
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Zhang BL, Yang DG. ROCK2: A novel, potential therapeutic target in diabetic cardiomyocytes? Int J Cardiol 2020; 298:119. [PMID: 31901260 DOI: 10.1016/j.ijcard.2019.09.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 09/06/2019] [Accepted: 09/11/2019] [Indexed: 10/25/2022]
Affiliation(s)
- Bao-Lei Zhang
- Department of Gastrointestinal Surgery, Liaocheng People's Hospital Affiliated to Shandong University, Liaocheng 252000, PR China
| | - Dao-Gui Yang
- Department of Gastrointestinal Surgery, Liaocheng People's Hospital Affiliated to Shandong University, Liaocheng 252000, PR China.
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12
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Deng X, Yi X, Deng J, Zou Y, Wang S, Shan W, Liu P, Zhang Z, Chen L, Hao L. ROCK2 promotes osteosarcoma growth and metastasis by modifying PFKFB3 ubiquitination and degradation. Exp Cell Res 2019; 385:111689. [PMID: 31678169 DOI: 10.1016/j.yexcr.2019.111689] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 10/23/2019] [Accepted: 10/25/2019] [Indexed: 12/11/2022]
Abstract
Rho-associated coiled-coil-containing protein kinase 2 (ROCK2) and 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 3 (PFKFB3) are widely involved in cell biological activities and play a key role in controlling various cell phenomena. However, the underlying mechanisms connecting ROCK2 and PFKFB3 in osteosarcoma growth and metastasis are poorly understood. In this study, we explored and analysed the role and molecular mechanism of ROCK2 and PFKFB3 in osteosarcoma. We analysed ROCK2 and PFKFB3 protein expression in 51 surgical specimens from osteosarcoma patients and determined the correlation between ROCK2 and PFKFB3. In addition, we used Transwell and wound-healing assays to detect cell invasion and migration and CCK8 and EdU assays to assess cell proliferation. Herein, we confirmed that ROCK2 and PFKFB3 proteins were significantly upregulated in osteosarcoma compared with adjacent normal tissues. Further studies revealed that knockdown of ROCK2 significantly decreased the expression levels of PFKFB3; moreover, growth and metastasis were decreased in shROCK2 osteosarcoma cells. Additionally, upregulation of PFKFB3 rescued the decreased proliferation and metastasis induced by ROCK2 knockdown, whereas knockdown of PFKFB3 decreased ROCK2-enhanced osteosarcoma proliferation and metastasis. These results suggest that PFKFB3 is essential for ROCK2-mediated proliferation and metastasis of osteosarcoma cells. Mechanistically, ROCK2 stabilizes PFKFB3 expression by modifying its ubiquitination and degradation. Taken together, our results link two drivers of proliferation and metastasis in osteosarcoma and identify a novel pathway for PFKFB3 regulation. Thus, we provide new evidence of the biological and clinical significance of PFKFB3 as a potential biomarker for osteosarcoma.
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Affiliation(s)
- Xueqiang Deng
- Department of Orthopedics, Second Affiliated Hospital of Nanchang University, Nanchang, China; Jiangxi Province Key Laboratory of Molecular Medicine, Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xuan Yi
- Department of Orthopedics, Second Affiliated Hospital of Nanchang University, Nanchang, China; Jiangxi Province Key Laboratory of Molecular Medicine, Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jianyong Deng
- Department of Orthopedics, Second Affiliated Hospital of Nanchang University, Nanchang, China; Jiangxi Province Key Laboratory of Molecular Medicine, Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yeqin Zou
- Jiangxi Province Key Laboratory of Molecular Medicine, Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Shanshan Wang
- Jiangxi Province Key Laboratory of Molecular Medicine, Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Wenhao Shan
- Department of Orthopedics, Third Affiliated Hospital of Nanchang University, Nanchang, China
| | - Peng Liu
- Department of Gastroenterology, Third Affiliated Hospital of Nanchang University, Nanchang, China
| | - Zhibin Zhang
- Department of Dermatology, Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Leifeng Chen
- Department of General Surgery, Second Affiliated Hospital of Nanchang University, Nanchang, China.
| | - Liang Hao
- Department of Orthopedics, Second Affiliated Hospital of Nanchang University, Nanchang, China.
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Hu L, Ding M, Tang D, Gao E, Li C, Wang K, Qi B, Qiu J, Zhao H, Chang P, Fu F, Li Y. Targeting mitochondrial dynamics by regulating Mfn2 for therapeutic intervention in diabetic cardiomyopathy. Am J Cancer Res 2019; 9:3687-3706. [PMID: 31281507 PMCID: PMC6587356 DOI: 10.7150/thno.33684] [Citation(s) in RCA: 134] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 04/24/2019] [Indexed: 01/09/2023] Open
Abstract
Increasing evidence has implicated the important role of mitochondrial pathology in diabetic cardiomyopathy (DCM), while the underlying mechanism remains largely unclear. The aim of this study was to investigate the role of mitochondrial dynamics in the pathogenesis of DCM and its underlying mechanisms. Methods: Obese diabetic (db/db) and lean control (db/+) mice were used in this study. Mitochondrial dynamics were analyzed by transmission electron microscopy in vivo and by confocal microscopy in vitro. Results: Diabetic hearts from 12-week-old db/db mice showed excessive mitochondrial fission and significant reduced expression of Mfn2, while there was no significant alteration or slight change in the expression of other dynamic-related proteins. Reconstitution of Mfn2 in diabetic hearts inhibited mitochondrial fission and prevented the progression of DCM. In an in-vitro study, cardiomyocytes cultured in high-glucose and high-fat (HG/HF) medium showed excessive mitochondrial fission and decreased Mfn2 expression. Reconstitution of Mfn2 restored mitochondrial membrane potential, suppressed mitochondrial oxidative stress and improved mitochondrial function in HG/HF-treated cardiomyocytes through promoting mitochondrial fusion. In addition, the down-regulation of Mfn2 expression in HG/HF-treated cardiomyocytes was induced by reduced expression of PPARα, which positively regulated the expression of Mfn2 by directly binding to its promoter. Conclusion: Our study provides the first evidence that imbalanced mitochondrial dynamics induced by down-regulated Mfn2 contributes to the development of DCM. Targeting mitochondrial dynamics by regulating Mfn2 might be a potential therapeutic strategy for DCM.
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