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Zhang L, Zeng C, Huang J, Yan H, Jiang Y, Li R. Exploration of the miR-187-3p/CNR2 pathway in modulating osteoblast differentiation and treating postmenopausal osteoporosis through mechanical stress. FASEB J 2024; 38:e23776. [PMID: 38958998 DOI: 10.1096/fj.202400113rr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 05/28/2024] [Accepted: 06/18/2024] [Indexed: 07/04/2024]
Abstract
This study aimed to explore how mechanical stress affects osteogenic differentiation via the miR-187-3p/CNR2 pathway. To conduct this study, 24 female C57BL/6 mice, aged 8 weeks, were used and divided into four groups. The Sham and OVX groups did not undergo treadmill exercise, while the Sham + EX and OVX + EX groups received a 8-week treadmill exercise. Post-training, bone marrow and fresh femur samples were collected for further analysis. Molecular biology analysis, histomorphology analysis, and micro-CT analysis were conducted on these samples. Moreover, primary osteoblasts were cultured under osteogenic conditions and divided into GM group and CTS group. The cells in the CTS group underwent a sinusoidal stretching regimen for either 3 or 7 days. The expression of early osteoblast markers (Runx2, OPN, and ALP) was measured to assess differentiation. The study findings revealed that mechanical stress has a regulatory impact on osteoblast differentiation. The expression of miR-187-3p was observed to decrease, facilitating osteogenic differentiation, while the expression of CNR2 increased significantly. These observations suggest that mechanical stress, miR-187-3p, and CNR2 play crucial roles in regulating osteogenic differentiation. Both in vivo and in vitro experiments have confirmed that mechanical stress downregulates miR-187-3p and upregulates CNR2, which leads to the restoration of distal femoral bone mass and enhancement of osteoblast differentiation. Therefore, mechanical stress promotes osteoblasts, resulting in improved osteoporosis through the miR-187-3p/CNR2 signaling pathway. These findings have broad prospect and provide molecular biology guidance for the basic research and clinical application of exercise in the prevention and treatment of PMOP.
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Affiliation(s)
- Lei Zhang
- Department of Foot and Ankle Surgery, Center for Orthopaedic Surgery, The Third Affiliated Hospital, Southern Medical University, Guangzhou, China
- Orthopaedic Hospital of Guangdong Province, Guangzhou, China
- Academy of Orthopedics·Guangdong Province, Guangzhou, China
- Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China
| | - Canjun Zeng
- Department of Foot and Ankle Surgery, Center for Orthopaedic Surgery, The Third Affiliated Hospital, Southern Medical University, Guangzhou, China
- Orthopaedic Hospital of Guangdong Province, Guangzhou, China
- Academy of Orthopedics·Guangdong Province, Guangzhou, China
- Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China
| | - Juanyu Huang
- Department of Foot and Ankle Surgery, Center for Orthopaedic Surgery, The Third Affiliated Hospital, Southern Medical University, Guangzhou, China
- Orthopaedic Hospital of Guangdong Province, Guangzhou, China
- Academy of Orthopedics·Guangdong Province, Guangzhou, China
- Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China
| | - Haohang Yan
- Department of Foot and Ankle Surgery, Center for Orthopaedic Surgery, The Third Affiliated Hospital, Southern Medical University, Guangzhou, China
- Orthopaedic Hospital of Guangdong Province, Guangzhou, China
- Academy of Orthopedics·Guangdong Province, Guangzhou, China
- Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China
| | - Yutao Jiang
- Orthopaedic Hospital of Guangdong Province, Guangzhou, China
- Academy of Orthopedics·Guangdong Province, Guangzhou, China
- Guangzhou Key Laboratory of Neuropathic Pain Mechanism at Spinal Cord Level, Guangzhou, China
- Department of Spine Surgery, Center for Orthopaedic Surgery, The Third Affiliated Hospital, Southern Medical University, Guangzhou, China
| | - Runguang Li
- Department of Foot and Ankle Surgery, Center for Orthopaedic Surgery, The Third Affiliated Hospital, Southern Medical University, Guangzhou, China
- Orthopaedic Hospital of Guangdong Province, Guangzhou, China
- Academy of Orthopedics·Guangdong Province, Guangzhou, China
- Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China
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Zhang H, Lin L, Yang A, Liang Y, Huang B. Scutellarin alleviates tensile stress-induced proliferation and migration of venous smooth muscle cells via mediating the p38 MAPK pathway. Tissue Cell 2024; 87:102300. [PMID: 38211409 DOI: 10.1016/j.tice.2024.102300] [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: 07/04/2023] [Revised: 12/08/2023] [Accepted: 01/01/2024] [Indexed: 01/13/2024]
Abstract
OBJECTIVE Abnormal proliferation and migration of biomechanical force-induced venous smooth muscle cells (VSMCs) is a major cause to limit the efficacy of coronary artery bypass grafting (CABG) for coronary heart disease (CHD). Scutellarin is the main active ingredient of Erigeron Breviscapus, and has broad-spectrum pharmacological effects. Therefore, the present study was proposed to investigate the effect of Scutellarin on VSMCs under tensile stress. METHODS After interfering with VSMCs at different tensile stresses, the optimal tensile stress was screened. In a tensile stress environment, 100 μM Scutellarin and Hesperetin (p38 MAPK pathway activator) was used to treatment with VSMCs. CCK-8, EDU, Wound healing, flow cytometry and western blotting assays were used to detect cell proliferation, migration, apoptosis, and the expression of apoptosis-related proteins (Caspase3, Bcl2 and Bax). RESULTS Tensile stress with 10% significantly enhanced the activity, wound-healing ratio, and EDU+ cells of VSMCs, and decreased their apoptosis ratio. Moreover, it upregulated Bcl2 expression, and downregulated cleaved-Caspase3 and Bax expression of VSMCs. Hence, 10% tensile stress was selected to creates a tensile stress environment for VSMCs. Interestingly, 100 μM Scutellarin alleviated the effect of 10% tensile stress on the phenotype of VSMCs. Notably, 10% tensile stress increased the phosphorylation level of p38 MAPK (Thr180 +Tyr182) in VSMCs, which was restricted by Scutellarin. Further, Hesperetin restored the effect of Scutellarin on the phenotype of VSMCs. CONCLUSION Scutellarin alleviates tension stress-induced proliferation and migration of VSMCs via suppressing p38 MAPK pathway. Scutellarin may be used as an adjunctive strategy for future GABG treatment in CHD patients.
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Affiliation(s)
- Hu Zhang
- Departments of Cardiology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, China
| | - Ling Lin
- Departments of Cardiology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, China
| | - Ailing Yang
- Departments of Cardiology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, China
| | - Yasha Liang
- Departments of Cardiology, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, China
| | - Bo Huang
- Operating Room, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, China.
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Bao Y, Zhang H, Wang D, Yan P, Shao S, Zhang Z, Liu B, Li N. The Pathological Factors Involved in Current In Vitro Atherosclerotic Models. TISSUE ENGINEERING. PART B, REVIEWS 2024. [PMID: 38258801 DOI: 10.1089/ten.teb.2023.0272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Cardiovascular disease stemmed from atherosclerosis (AS) is well recognized to be the predominant cause of global death. To comprehensively clarify the pathogenesis of AS, exploit effective drugs, as well as develop therapeutic solutions, various atherosclerotic models were constructed in vitro and widely utilized by the scientific community. Compared with animal models, the in vitro atherosclerotic models play a prominent role not only in the targeted research of single pathological factor related to AS in the human derived system, but also in the combined study on multipathological factors leading to AS, thereby contributing tremendously to the in-depth elucidation of atherosclerotic pathological process. In the current review, a variety of pathological factors incorporated into the existing atherosclerotic models in vitro are broadly elaborated, including the pathological mechanism, in vitro simulation approaches, and the desired improvement perspectives for reproducing each pathological factor. In addition, this review also summarizes the advantages and disadvantages of current atherosclerotic models as well as their potential functionality. Finally, the promising aspects for future atherosclerotic models in vitro with potential advances are also discussed.
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Affiliation(s)
- Yuxin Bao
- School of Biomedical Engineering, Faculty of Medicine, Dalian University of Technology, Dalian, China
| | - Hangyu Zhang
- School of Biomedical Engineering, Faculty of Medicine, Dalian University of Technology, Dalian, China
| | - Danbo Wang
- Cancer Hospital of Dalian University of Technology, Shenyang, China
| | - Peishi Yan
- Department of Cardiology, Central Hospital of Dalian University of Technology, Dalian, China
| | - Shuai Shao
- School of Biomedical Engineering, Faculty of Medicine, Dalian University of Technology, Dalian, China
| | - Zhengyao Zhang
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, China
| | - Bo Liu
- Cancer Hospital of Dalian University of Technology, Shenyang, China
- School of Basic Medical Sciences, Faculty of Medicine, Dalian University of Technology, Dalian, China
- Liaoning Key Lab of Integrated Circuit and Biomedical Electronic System, Dalian University of Technology, Dalian, China
| | - Na Li
- Cancer Hospital of Dalian University of Technology, Shenyang, China
- School of Basic Medical Sciences, Faculty of Medicine, Dalian University of Technology, Dalian, China
- Liaoning Key Lab of Integrated Circuit and Biomedical Electronic System, Dalian University of Technology, Dalian, China
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Cheng L, Huang Y, Yao H, Luo J, Zhang L, Fu R, Lv J, Yang B, Yan L. Wall Shear Stress Reduction Activates Angiotensin II to Facilitate Aneurysmal Subarachnoid Hemorrhage in Intracranial Aneurysms Through MicroRNA-29/The Growth Factor-Beta Receptor Type II/Smad3 Axis. World Neurosurg 2023; 176:e314-e326. [PMID: 37230243 DOI: 10.1016/j.wneu.2023.05.056] [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: 03/15/2023] [Revised: 05/16/2023] [Accepted: 05/17/2023] [Indexed: 05/27/2023]
Abstract
OBJECTIVE We tried to broaden our knowledge of the possible role of wall shear stress (WSS) in the occurrence of intracranial aneurysms (IAs). METHODS Genes implicated in IAs and genes related to WSS were predicted through in silico analysis. Rat models of IAs were established, in which the expression patterns of angiotensin II (Ang II) were characterized, and WSS was assessed. Vascular endothelial cells isolated from rats bearing IAs were treated with microRNA-29 (miR-29) mimic/inhibitor, small interfering RNA-TGF-β receptor type II (TGFBR2)/overexpressed TGFBR2, Ang II, or angiotensin-converting enzyme (ACE) inhibitor. Then, the endothelial-to-mesenchymal transition (EndMT) was evaluated by flow cytometry. Finally, the volume of IAs and risk of subarachnoid hemorrhage were analyzed in vivo in response to miR-29 gain of function. RESULTS WSS was decreased in the IA bearing arteries, which showed a positive correlation with ACE and Ang II in the vascular tissues of IA rats. Reduced miR-29 and increased ACE, Ang II, and TGFBR2 were detected in the vascular tissues of IA rats. Ang II inhibited miR-29, which targeted TGFBR2. Downregulated TGFBR2 was accompanied by suppression of Smad3 phosphorylation. Through impairing miR-29-dependent inhibition of TGFBR2, Ang II enhanced EndMT. In vivo data confirmed that treatment of miR-29 agomir delayed the formation of IA and decreased the risk of subarachnoid hemorrhage. CONCLUSIONS The current study provided evidence that WSS reduction could activate Ang II, reduce miR-29 expression, and activate the TGFBR2/Smad3 axis, thus promoting EndMT and accelerating the progression of IAs.
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Affiliation(s)
- Longhai Cheng
- Department of Neurosurgery, Taihe Hospital, Hubei University of Medicine, Shiyan, P.R. China
| | - Yan Huang
- Department of Neurosurgery, Taihe Hospital, Hubei University of Medicine, Shiyan, P.R. China
| | - Hong Yao
- Department of Neurosurgery, Taihe Hospital, Hubei University of Medicine, Shiyan, P.R. China
| | - Jie Luo
- Department of Neurosurgery, Taihe Hospital, Hubei University of Medicine, Shiyan, P.R. China
| | - Li Zhang
- Department of Neurosurgery, Taihe Hospital, Hubei University of Medicine, Shiyan, P.R. China
| | - Rui Fu
- Department of Neurosurgery, Taihe Hospital, Hubei University of Medicine, Shiyan, P.R. China
| | - Junti Lv
- Department of Neurosurgery, Taihe Hospital, Hubei University of Medicine, Shiyan, P.R. China.
| | - Bowen Yang
- Department of Neurosurgery, Taihe Hospital, Hubei University of Medicine, Shiyan, P.R. China
| | - Lidong Yan
- Department of Neurosurgery, Taihe Hospital, Hubei University of Medicine, Shiyan, P.R. China
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