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Biber JC, Sullivan A, Brazzo JA, Heo Y, Tumenbayar BI, Krajnik A, Poppenberg KE, Tutino VM, Heo SJ, Kolega J, Lee K, Bae Y. Survivin as a mediator of stiffness-induced cell cycle progression and proliferation of vascular smooth muscle cells. APL Bioeng 2023; 7:046108. [PMID: 37915752 PMCID: PMC10618027 DOI: 10.1063/5.0150532] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 10/05/2023] [Indexed: 11/03/2023] Open
Abstract
Stiffened arteries are a pathology of atherosclerosis, hypertension, and coronary artery disease and a key risk factor for cardiovascular disease events. The increased stiffness of arteries triggers a phenotypic switch, hypermigration, and hyperproliferation of vascular smooth muscle cells (VSMCs), leading to neointimal hyperplasia and accelerated neointima formation. However, the mechanism underlying this trigger remains unknown. Our analyses of whole-transcriptome microarray data from mouse VSMCs cultured on stiff hydrogels simulating arterial pathology identified 623 genes that were significantly and differentially expressed (360 upregulated and 263 downregulated) relative to expression in VSMCs cultured on soft hydrogels. Functional enrichment and gene network analyses revealed that these stiffness-sensitive genes are linked to cell cycle progression and proliferation. Importantly, we found that survivin, an inhibitor of apoptosis protein, mediates stiffness-dependent cell cycle progression and proliferation as determined by gene network and pathway analyses, RT-qPCR, immunoblotting, and cell proliferation assays. Furthermore, we found that inhibition of cell cycle progression did not reduce survivin expression, suggesting that survivin functions as an upstream regulator of cell cycle progression and proliferation in response to ECM stiffness. Mechanistically, we found that the stiffness signal is mechanotransduced via the FAK-E2F1 signaling axis to regulate survivin expression, establishing a regulatory pathway for how the stiffness of the cellular microenvironment affects VSMC behaviors. Overall, our findings indicate that survivin is necessary for VSMC cycling and proliferation and plays a role in regulating stiffness-responsive phenotypes.
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Affiliation(s)
- John C. Biber
- Department of Pathology and Anatomical Sciences, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York 14203, USA
| | - Andra Sullivan
- Department of Biomedical Engineering, School of Engineering and Applied Sciences, University at Buffalo, Buffalo, New York 14260, USA
| | - Joseph A. Brazzo
- Department of Pathology and Anatomical Sciences, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York 14203, USA
| | | | - Bat-Ider Tumenbayar
- Department of Pharmacology and Toxicology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York 14203, USA
| | - Amanda Krajnik
- Department of Pathology and Anatomical Sciences, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York 14203, USA
| | | | | | - Su-Jin Heo
- Department of Orthopedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - John Kolega
- Department of Pathology and Anatomical Sciences, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York 14203, USA
| | - Kwonmoo Lee
- Vascular Biology Program, Boston Children's Hospital, Boston, Massachusetts 02115, USA
| | - Yongho Bae
- Author to whom correspondence should be addressed:
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Tu Y, Wang L, Wang X, Wu W, Tu Y, Zou D, Deng Y, Qi J, Cao C, Xu D, Chai Y, Zhu Y, Zhang J, Sun J, Lai F, He L. LncRNA-WAKMAR2 regulates expression of CLDN1 to affect skin barrier through recruiting c-Fos. Contact Dermatitis 2023; 88:188-200. [PMID: 36461623 DOI: 10.1111/cod.14256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 10/31/2022] [Accepted: 11/27/2022] [Indexed: 12/04/2022]
Abstract
BACKGROUND Chronic actinic dermatitis (CAD) is an immune-mediated photo-allergic skin disease. In the clinic, the treatment of this disease is hampered by the lack of proper understanding of the skin barrier dysfunction mechanism. OBJECTIVE To illuminate the mechanism of skin barrier dysfunction in CAD. METHODS Transcriptome sequencing and protein profiling were used to detect skin barrier injury-related genes. RNA pull down, a promoter-reporter gene assay, and chromatin isolation by RNA purification-sequencing were used to elucidate the effect of WAKMAR2 in skin barrier functionality. RESULTS Transcriptome sequencing from patient's tissues showed a significantly decreased expression of WAKMAR2. Down-regulation of WAKMAR2 destroyed the keratinocyte barrier. Moreover, WAKMAR2 can directly bind to the c-Fos protein. This novel long non-coding RNA (LncRNA)-protein complexes were targeted to the CLDN1 promotor. Overexpression of WAKMAR2 enhanced the promoter activity of CLDN1, while the addition of AP-1 inhibitor could reverse this phenomenon. Furthermore, our in vivo results suggested that expression of WAKMAR2 was required for the repair of skin damage in mice induced by ultraviolet irradiation. CONCLUSIONS We identified a crucial LncRNA (WAKMAR2) for the protection of the skin barrier in vitro and in vivo. Mechanically, it can specifically interact with c-Fos protein for the regulation of CLDN1, a finding which could be applied for CAD treatment.
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Affiliation(s)
- Yunhua Tu
- Department of Dermatology, First Affiliated Hospital of Kunming Medical University, Kunming, China.,Department of Dermatology, The Second People's Hospital of Guiyang, Guiyang, China
| | - Li Wang
- Department of Dermatology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Xiaoli Wang
- Department of Dermatology, Changzheng Hospital, Naval Medical University, Shanghai, China
| | - Wenjuan Wu
- Department of Dermatology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Ying Tu
- Department of Dermatology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Dandan Zou
- Department of Dermatology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yuanyuan Deng
- Department of Dermatology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Jue Qi
- Department of Dermatology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Can Cao
- Department of Dermatology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Dan Xu
- Department of Dermatology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yanjie Chai
- Department of Dermatology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yun Zhu
- Department of Dermatology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Juan Zhang
- Department of Dermatology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Jun Sun
- Department of Anatomy and Histology and Embryology, Faculty of Basic Medical Science, Kunming Medical University, Kunming, China
| | - Fan Lai
- State Key Laboratory for Conservation and Utilization of Bio-Resource in Yunnan, Center for Life Science, School of Life Sciences, Yunnan University, Kunming, China
| | - Li He
- Department of Dermatology, First Affiliated Hospital of Kunming Medical University, Kunming, China
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Qiu L, Zhu Z, Peng F, Zhang C, Xie J, Zhou R, Zhang Y, Li M. Li-Doped Ti Surface for the Improvement of Osteointegration. ACS OMEGA 2022; 7:12030-12038. [PMID: 35449902 PMCID: PMC9016885 DOI: 10.1021/acsomega.2c00229] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 03/24/2022] [Indexed: 06/14/2023]
Abstract
Aseptic loosening is the main factor that leads to the failure of orthopedic implants. Enhancing the early osteointegration of a bone implant can lower the risk of aseptic loosening. Here, a Li-doped surface was constructed on a Ti surface via plasma electrolytic oxidation (PEO) to improve osteointegration. The prepared Li-doped PEO coating showed a porous morphology and the sustained release of Li ions. In vitro results of rat bone marrow mesenchymal stem cell (rBMSC) culture studies suggested that the Li-doped Ti surface significantly favored cell adhesion. Moreover, it was found that the Li-doped surface enhanced alkaline phosphatase activity and extracellular matrix mineralization of rBMSCs. In addition, the surface improved the expression of osteogenesis-related genes. Furthermore, a bone implantation model indicated that the Li-doped Ti surface showed improved osteointegration. The incorporation of Li into a Ti surface is a promising method for orthopedic applications.
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Affiliation(s)
- Longhai Qiu
- The
Second School of Clinical Medicine, Southern
Medical University, Guangzhou 510515, China
- Medical
Research Center, Department of Orthopedics, Guangdong Provincial People’s Hospital, Guangdong Academy
of Medical Sciences, Guangzhou 510080, China
- Department
of Traumatology and Orthopaedic Surgery, Institute of Orthopaedics, Huizhou Municipal Central Hospital, Huizhou, Guangdong 516001, China
| | - Zhanbei Zhu
- Medical
Research Center, Department of Orthopedics, Guangdong Provincial People’s Hospital, Guangdong Academy
of Medical Sciences, Guangzhou 510080, China
| | - Feng Peng
- Medical
Research Center, Department of Orthopedics, Guangdong Provincial People’s Hospital, Guangdong Academy
of Medical Sciences, Guangzhou 510080, China
| | - Chi Zhang
- Medical
Research Center, Department of Orthopedics, Guangdong Provincial People’s Hospital, Guangdong Academy
of Medical Sciences, Guangzhou 510080, China
| | - Juning Xie
- Medical
Research Center, Department of Orthopedics, Guangdong Provincial People’s Hospital, Guangdong Academy
of Medical Sciences, Guangzhou 510080, China
| | - Ruixiang Zhou
- Medical
Research Center, Department of Orthopedics, Guangdong Provincial People’s Hospital, Guangdong Academy
of Medical Sciences, Guangzhou 510080, China
| | - Yu Zhang
- The
Second School of Clinical Medicine, Southern
Medical University, Guangzhou 510515, China
- Medical
Research Center, Department of Orthopedics, Guangdong Provincial People’s Hospital, Guangdong Academy
of Medical Sciences, Guangzhou 510080, China
| | - Mei Li
- Medical
Research Center, Department of Orthopedics, Guangdong Provincial People’s Hospital, Guangdong Academy
of Medical Sciences, Guangzhou 510080, China
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Mao L, Yin R, Yang L, Zhao D. Role of advanced glycation end products on vascular smooth muscle cells under diabetic atherosclerosis. Front Endocrinol (Lausanne) 2022; 13:983723. [PMID: 36120471 PMCID: PMC9470882 DOI: 10.3389/fendo.2022.983723] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 08/11/2022] [Indexed: 11/30/2022] Open
Abstract
Atherosclerosis (AS) is a chronic inflammatory disease and leading cause of cardiovascular diseases. The progression of AS is a multi-step process leading to high morbidity and mortality. Hyperglycemia, dyslipidemia, advanced glycation end products (AGEs), inflammation and insulin resistance which strictly involved in diabetes are closely related to the pathogenesis of AS. A growing number of studies have linked AGEs to AS. As one of the risk factors of cardiac metabolic diseases, dysfunction of VSMCs plays an important role in AS pathogenesis. AGEs are increased in diabetes, participate in the occurrence and progression of AS through multiple molecular mechanisms of vascular cell injury. As the main functional cells of vascular, vascular smooth muscle cells (VSMCs) play different roles in each stage of atherosclerotic lesions. The interaction between AGEs and receptor for AGEs (RAGE) accelerates AS by affecting the proliferation and migration of VSMCs. In addition, increasing researches have reported that AGEs promote osteogenic transformation and macrophage-like transformation of VSMCs, and affect the progression of AS through other aspects such as autophagy and cell cycle. In this review, we summarize the effect of AGEs on VSMCs in atherosclerotic plaque development and progression. We also discuss the AGEs that link AS and diabetes mellitus, including oxidative stress, inflammation, RAGE ligands, small noncoding RNAs.
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Affiliation(s)
| | | | | | - Dong Zhao
- *Correspondence: Longyan Yang, ; Dong Zhao,
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