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Guo P, Chen L, Yang D, Zhang L, Shu C, Li H, Zhu J, Zhou J, Li X. Predictive value of plasma ephrinB2 levels for amputation risk following endovascular revascularization in peripheral artery disease. PeerJ 2024; 12:e17531. [PMID: 38854794 PMCID: PMC11162178 DOI: 10.7717/peerj.17531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 05/17/2024] [Indexed: 06/11/2024] Open
Abstract
Background The aim of this study is to investigate the expression levels of ephrinB2 in patients with lower extremity peripheral arterial disease (PAD) and explore its association with the severity of the disease and the risk of amputation after endovascular revascularization. Methods During the period from March 2021 to March 2023, this study collected blood samples and clinical data from 133 patients diagnosed with lower extremity PAD and 51 healthy volunteer donors. The severity of lower extremity PAD patients was classified using the Rutherford categories. The expression of ephrin-B2 in plasma samples was detected using the Western Blotting. Results Compared to the control group, the levels of serum ephrinB2 in patients were significantly elevated (p < 0.001). Moreover, the plasma EphrinB2 levels were positively correlated with white blood cell counts (r = 0.204, p = 0.018), neutrophil counts (r = 0.174, p = 0.045), and neutrophil-to-lymphocyte ratio (NLR) (r = 0.223, p = 0.009). Furthermore, the AUCs of plasma ephrinB2 level, NLR, and their combination as predictors for amputation events within 30 months after lower extremity PAD endovascular revascularization were 0.659, 0.730 and 0.811. In the high-ephrinB2 group, the incidence of amputation events within 30 months after endovascular revascularization was higher. Conclusions Plasma EphrinB2 levels may be linked to lower extremity PAD development, inflammation, and postoperative amputation. Combining EphrinB2 and NLR can improve amputation prediction accuracy after endovascular revascularization in lower extremity PAD patients.
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Affiliation(s)
- Pengcheng Guo
- Vascular Surgery Department, the Secondary Xiangya Hospital, Central South University, Hunan, China
- Institute of Vascular Diseases, Central South University, Chang Sha, Hunan, China
| | - Lei Chen
- Pharmacy Department, the Secondary Xiangya Hospital, Central South University, Hunan, China
| | - Dafeng Yang
- Cardiology Surgery Department, the Secondary Xiangya Hospital, Central South University, Hunan, China
| | - Lei Zhang
- Vascular Surgery Department, the Secondary Xiangya Hospital, Central South University, Hunan, China
- Institute of Vascular Diseases, Central South University, Chang Sha, Hunan, China
| | - Chang Shu
- Vascular Surgery Department, the Secondary Xiangya Hospital, Central South University, Hunan, China
- Institute of Vascular Diseases, Central South University, Chang Sha, Hunan, China
- State Key Laboratory of Cardiovascular Diseases, Center of Vascular Surgery, Fuwai Hospital National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Huande Li
- Pharmacy Department, the Secondary Xiangya Hospital, Central South University, Hunan, China
| | - Jieting Zhu
- Vascular Surgery Department, the Secondary Xiangya Hospital, Central South University, Hunan, China
- Institute of Vascular Diseases, Central South University, Chang Sha, Hunan, China
| | - Jienan Zhou
- Vascular Surgery Department, the Secondary Xiangya Hospital, Central South University, Hunan, China
- Institute of Vascular Diseases, Central South University, Chang Sha, Hunan, China
| | - Xin Li
- Vascular Surgery Department, the Secondary Xiangya Hospital, Central South University, Hunan, China
- Institute of Vascular Diseases, Central South University, Chang Sha, Hunan, China
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Wang D, Guo Y, Heng BC, Zhang X, Wei Y, He Y, Xu M, Xia B, Deng X. Cell membrane vesicles derived from hBMSCs and hUVECs enhance bone regeneration. Bone Res 2024; 12:23. [PMID: 38594236 PMCID: PMC11003965 DOI: 10.1038/s41413-024-00325-9] [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: 04/12/2023] [Revised: 02/04/2024] [Accepted: 03/08/2024] [Indexed: 04/11/2024] Open
Abstract
Bone tissue renewal can be enhanced through co-transplantation of bone mesenchymal stem cells (BMSCs) and vascular endothelial cells (ECs). However, there are apparent limitations in stem cell-based therapy which hinder its clinic translation. Hence, we investigated the potential of alternative stem cell substitutes for facilitating bone regeneration. In this study, we successfully prepared cell membrane vesicles (CMVs) from BMSCs and ECs. The results showed that BMSC-derived cell membrane vesicles (BMSC-CMVs) possessed membrane receptors involved in juxtacrine signaling and growth factors derived from their parental cells. EC-derived cell membrane vesicles (EC-CMVs) also contained BMP2 and VEGF derived from their parental cells. BMSC-CMVs enhanced tube formation and migration ability of hUVECs, while EC-CMVs promoted the osteogenic differentiation of hBMSCs in vitro. Using a rat skull defect model, we found that co-transplantation of BMSC-CMVs and EC-CMVs could stimulate angiogenesis and bone formation in vivo. Therefore, our research might provide an innovative and feasible approach for cell-free therapy in bone tissue regeneration.
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Affiliation(s)
- Dandan Wang
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China
| | - Yaru Guo
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, 100081, P. R. China
| | - Boon Chin Heng
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, 100081, P. R. China
| | - Xuehui Zhang
- Department of Dental Materials & Dental Medical Devices Testing Center, Peking University School and Hospital of Stomatology, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, 100081, P. R. China
| | - Yan Wei
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, 100081, P. R. China
| | - Ying He
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, 100081, P. R. China
| | - Mingming Xu
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, 100081, P. R. China
| | - Bin Xia
- Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, P. R. China.
| | - Xuliang Deng
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, National Center for Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Beijing, 100081, P. R. China.
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Chen Y, Veenman L, Liao M, Huang W, Yu J, Zeng J. Enhanced angiogenesis in the thalamus induced by a novel TSPO ligand ameliorates cognitive deficits after focal cortical infarction. J Cereb Blood Flow Metab 2024; 44:477-490. [PMID: 37988123 PMCID: PMC10981401 DOI: 10.1177/0271678x231214671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 05/25/2023] [Accepted: 06/23/2023] [Indexed: 11/22/2023]
Abstract
Neuronal loss in the ipsilateral thalamus after focal cortical infarction participates in post-stroke cognitive deficits, and enhanced angiogenesis in the thalamus is expected to reduce neuronal damage. We hypothesize that novel translocator protein (TSPO) ligand, 2-Cl-MGV-1, can promote angiogenesis, attenuate neuronal loss in the thalamus, and ameliorate post-stroke cognitive deficits. Cortical infarction was induced by distal middle cerebral artery occlusion (dMCAO) in stroke-prone renovascular hypertensive rats. 2-Cl-MGV-1 or dimethyl sulfoxide was administered 24 h after dMCAO and then for 6 or 13 days. Spatial learning and memory were assessed using the Morris water maze. Neuronal loss, TSPO expression, angiogenesis, and intrinsic pathway were determined by immunofluorescence and immunoblotting 7 and 14 days after dMCAO. Cortical infarction caused post-stroke cognitive deficits and secondary neuronal loss with gliosis in the ipsilateral thalamus within 14 days of dMCAO. Increased angiogenesis and elevated expression of vascular TSPO were detected in the ipsilateral thalamus, and treatment with 2-Cl-MGV-1 enhanced angiogenesis by stimulating the PI3K-AKT-mTOR pathway. The effects of 2-Cl-MGV-1 on angiogenesis coincided with reduced neuronal loss in the thalamus and contributed to improvements in post-stroke cognitive deficits. Our findings suggest that 2-Cl-MGV-1 stimulates angiogenesis, ameliorates neuronal loss in the thalamus, and improves post-stroke cognitive deficits.
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Affiliation(s)
- Yicong Chen
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases; National Key Clinical Department and Key Discipline of Neurology, Guangzhou, China
| | - Leo Veenman
- Department of Neuroscience, Israel Institute of Technology, Haifa, Israel
| | - Mengshi Liao
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases; National Key Clinical Department and Key Discipline of Neurology, Guangzhou, China
| | - Weixian Huang
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases; National Key Clinical Department and Key Discipline of Neurology, Guangzhou, China
| | - Jian Yu
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases; National Key Clinical Department and Key Discipline of Neurology, Guangzhou, China
| | - Jinsheng Zeng
- Department of Neurology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diagnosis and Treatment of Major Neurological Diseases; National Key Clinical Department and Key Discipline of Neurology, Guangzhou, China
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Qi L, Ge W, Pan C, Jiang W, Lin D, Zhang L. Compromised osteogenic effect of exosomes internalized by senescent bone marrow stem cells via endocytoses involving clathrin, macropinocytosis and caveolae. Front Bioeng Biotechnol 2023; 10:1090914. [PMID: 36686252 PMCID: PMC9846034 DOI: 10.3389/fbioe.2022.1090914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 12/19/2022] [Indexed: 01/05/2023] Open
Abstract
Stem cell senescence leads to progressive functional declines and disrupts the physiological homeostasis of bone environment. Stem cell-derived exosomes are emerging as promising therapeutical approaches to treat diverse aging-related osseous diseases. Herein, a previously reported osteoinductive exosome (OI-exo) was applied as a therapeutic agent for bone repair in aging individuals and its internalization mechanisms in senescent bone marrow stem cells (BMSCs) were explored. The results demonstrated that OI-exos derived from young BMSCs could partially rescue the proliferation, osteogenic differentiation and alleviate aging phenotypes in vitro. OI-exo-delivered hierarchical mesoporous bioactive glass (MBG) scaffold effectively promote in vivo bone formation in aging rat cranial defect model. However, the osteogenic effects of OI-exo both in vitro and in vivo were compromised in senescent individuals and for aging BMSCs compared to younger ones. This study revealed that non-senescent BMSCs internalized exosomes exclusively via clathrin-mediated endocytosis, while senescent BMSCs additionally evoked macropinocytosis and caveolae-mediated endocytosis to mediate the internalization of exosomes. The alteration of endocytic manner of senescent BMSCs and the involvement of macropinocytosis might be responsible for the compromised effects of therapeutical exosomes. The phenomena discovered in this study could also be extended to other scenarios where drugs or treatments exerted compromised effects in aging individuals. The influence of endocytic manner, avoidance of macropinocytosis-related negative effects should be taken into considerations in future therapeutic design for aging populations.
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Affiliation(s)
- Lei Qi
- Department of Oral and Cranio-Maxillofacial Surgery, Shanghai Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai, China
| | - Weiwen Ge
- Department of Oral and Cranio-Maxillofacial Surgery, Shanghai Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai, China
| | - Cancan Pan
- Department of Oral and Cranio-Maxillofacial Surgery, Shanghai Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai, China
| | - Weidong Jiang
- Department of Oral and Cranio-Maxillofacial Surgery, Shanghai Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai, China
| | - Dan Lin
- Shanghai University of Medicine and Health Sciences, Shanghai, China,*Correspondence: Lei Zhang, ; Dan Lin,
| | - Lei Zhang
- Department of Oral and Cranio-Maxillofacial Surgery, Shanghai Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai, China,*Correspondence: Lei Zhang, ; Dan Lin,
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Wang P, Deng Z, Li A, Li R, Huang W, Cui J, Chen S, Li B, Zhang S. β-Catenin promotes long-term survival and angiogenesis of peripheral blood mesenchymal stem cells via the Oct4 signaling pathway. EXPERIMENTAL & MOLECULAR MEDICINE 2022; 54:1434-1449. [PMID: 36050404 PMCID: PMC9535028 DOI: 10.1038/s12276-022-00839-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 04/06/2022] [Accepted: 06/27/2022] [Indexed: 11/21/2022]
Abstract
Stem cell therapy has been extensively studied to improve heart function following myocardial infarction; however, its therapeutic potency is limited by low rates of engraftment, survival, and differentiation. Here, we aimed to determine the roles of the β-catenin/Oct4 signaling axis in the regulation of long-term survival and angiogenesis of peripheral blood mesenchymal stem cells (PBMSCs). These cells were obtained from rat abdominal aortic blood. We showed that β-catenin promotes the self-renewal, antiapoptotic effects, and long-term survival of PBMSCs by activating the Oct4 pathway through upregulation of the expression of the antiapoptotic factors Bcl2 and survivin and the proangiogenic cytokine bFGF and suppression of the levels of the proapoptotic factors Bax and cleaved caspase-3. β-Catenin overexpression increased Oct4 expression. β-Catenin knockdown suppressed Oct4 expression in PBMSCs. However, β-catenin levels were not affected by Oct4 overexpression or knockdown. Chromatin immunoprecipitation assays proved that β-catenin directly regulates Oct4 transcription in PBMSCs. In vivo, PBMSCs overexpressing β-catenin showed high survival in infarcted hearts and resulted in better myocardial repair. Further functional analysis identified Oct4 as the direct upstream regulator of Ang1, bFGF, HGF, VEGF, Bcl2, and survivin, which cooperatively drive antiapoptosis and angiogenesis of engrafted PBMSCs. These findings revealed the regulation of β-catenin in PBMSCs by the Oct4-mediated antiapoptotic/proangiogenic signaling axis and provide a breakthrough point for improving the long-term survival and therapeutic effects of PBMSCs. Boosting expression of a specific gene has allowed researchers to generate stem cells with increased capacity for tissue repair after a heart attack. Several studies have shown that treatment with a population of circulating cells known as ‘peripheral blood mesenchymal stem cells’ (PBMSCs) can regenerate cardiac tissue. These cells generally have a short lifespan when used therapeutically, but researchers led by Shaoheng Zhang at Jinan University in Guangzhou China have increased long-term survival and performance by boosting expression of the gene encoding β-catenin, a protein that promotes cell survival and proliferation. PBMSCs expressing increased levels of β-catenin preserved heart function in a rat model of heart attack, stimulating blood vessel growth and improving animal survival. This study also reveals proteins regulated by β-catenin, which could potentially be exploited for finer control of PBMSC function.
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Affiliation(s)
- Pengzhen Wang
- Department of Cardiology, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, Guangdong, 510220, P.R. China.,Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, Guangdong, 510220, P.R. China
| | - Zhanyu Deng
- Department of Cardiology, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, Guangdong, 510220, P.R. China
| | - Aiguo Li
- Department of Orthopaedics, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, Guangdong, 510220, P.R. China
| | - Rongsen Li
- Department of Cardiology, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, Guangdong, 510220, P.R. China
| | - Weiguang Huang
- Department of Cardiology, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, Guangdong, 510220, P.R. China
| | - Jin Cui
- Department of Cardiology, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, Guangdong, 510220, P.R. China
| | - Songsheng Chen
- Department of Cardiology, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, Guangdong, 510220, P.R. China
| | - Biao Li
- Department of Cardiology, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, Guangdong, 510220, P.R. China
| | - Shaoheng Zhang
- Department of Cardiology, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, Guangdong, 510220, P.R. China.
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Message in a Bottle: Endothelial Cell Regulation by Extracellular Vesicles. Cancers (Basel) 2022; 14:cancers14081969. [PMID: 35454874 PMCID: PMC9026533 DOI: 10.3390/cancers14081969] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/06/2022] [Accepted: 04/10/2022] [Indexed: 12/17/2022] Open
Abstract
Simple Summary Elucidating the role of extracellular vesicles (EVs) in the communication mechanisms between cancer and endothelial cells (ECs) within the tumor microenvironment is an exciting challenge. At the same time, due to their ability to convey bioactive molecules, EVs may be potentially relevant from a therapeutic perspective for diverse vascular pathologies. Abstract Intercellular communication is a key biological mechanism that is fundamental to maintain tissue homeostasis. Extracellular vesicles (EVs) have emerged as critical regulators of cell–cell communication in both physiological and pathological conditions, due to their ability to shuttle a variety of cell constituents, such as DNA, RNA, lipids, active metabolites, cytosolic, and cell surface proteins. In particular, endothelial cells (ECs) are prominently regulated by EVs released by neighboring cell types. The discovery that cancer cell-derived EVs can control the functions of ECs has prompted the investigation of their roles in tumor angiogenesis and cancer progression. In particular, here, we discuss evidence that supports the roles of exosomes in EC regulation within the tumor microenvironment and in vascular dysfunction leading to atherosclerosis. Moreover, we survey the molecular mechanisms and exosomal cargoes that have been implicated in explanations of these regulatory effects.
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Guo Y, Mei F, Huang Y, Ma S, Wei Y, Zhang X, Xu M, He Y, Heng BC, Chen L, Deng X. Matrix stiffness modulates tip cell formation through the p-PXN-Rac1-YAP signaling axis. Bioact Mater 2021; 7:364-376. [PMID: 34466738 PMCID: PMC8379356 DOI: 10.1016/j.bioactmat.2021.05.033] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 05/05/2021] [Accepted: 05/19/2021] [Indexed: 01/01/2023] Open
Abstract
Endothelial tip cell outgrowth of blood-vessel sprouts marks the initiation of angiogenesis which is critical in physiological and pathophysiological procedures. However, how mechanical characteristics of extracellular matrix (ECM) modulates tip cell formation has been largely neglected. In this study, we found enhanced CD31 expression in the stiffening outer layer of hepatocellular carcinoma than in surrounding soft tissues. Stiffened matrix promoted sprouting from endothelial cell (EC) spheroids and upregulated expressions of tip cell-enriched genes in vitro. Moreover, tip cells showed increased cellular stiffness, more actin cytoskeleton organization and enhanced YAP nuclear transfer than stalk and phalanx ECs. We further uncovered that substrate stiffness regulates FAK and Paxillin phosphorylation in focal adhesion of ECs promoting Rac1 transition from inactive to active state. YAP is subsequently activated and translocated into nucleus, leading to increased tip cell specification. p-Paxillin can also loosen the intercellular connection which also facilitates tip cell specification. Collectively our present study shows that matrix stiffness modulates tip cell formation through p-PXN-Rac1-YAP signaling axis, shedding light on the role of mechanotransduction in tip cell formation. This is of special significance in biomaterial design and treatment of some pathological situations. Mechanotransduction is implicated in angiogenesis and tip cell formation. Tip cells showed different mechanical properties from stalk and phalanx ECs. Paxillin, Rac1 and YAP might be novel treatment targets for some diseases. Material stiffness affects tip cell specification.
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Affiliation(s)
- Yaru Guo
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, China
| | - Feng Mei
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
| | - Ying Huang
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, China
| | - Siqin Ma
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, China
| | - Yan Wei
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, China
| | - Xuehui Zhang
- Department of Dental Materials, Peking University School and Hospital of Stomatology, Beijing, 100081, PR China
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, 100081, PR China
- Beijing Laboratory of Biomedical Materials, Peking University School and Hospital of Stomatology, Beijing, 100081, PR China
| | - Mingming Xu
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, China
| | - Ying He
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, China
| | - Boon Chin Heng
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, 100081, PR China
| | - Lili Chen
- Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Hubei Province Key Laboratory of Oral and Maxillofacial Development and Regeneration, Wuhan, 430022, China
- Corresponding author. Department of Stomatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| | - Xuliang Deng
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, China
- Department of Dental Materials, Peking University School and Hospital of Stomatology, Beijing, 100081, PR China
- National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing, 100081, PR China
- Beijing Laboratory of Biomedical Materials, Peking University School and Hospital of Stomatology, Beijing, 100081, PR China
- Corresponding author. Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, China.
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8
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Ji Z, Chen S, Cui J, Huang W, Zhang R, Wei J, Zhang S. Oct4-dependent FoxC1 activation improves the survival and neovascularization of mesenchymal stem cells under myocardial ischemia. Stem Cell Res Ther 2021; 12:483. [PMID: 34454602 PMCID: PMC8403428 DOI: 10.1186/s13287-021-02553-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 08/16/2021] [Indexed: 12/23/2022] Open
Abstract
Background The administration of mesenchymal stem cells (MSCs) remains the most promising approach for cardiac repair after myocardial infarct (MI). However, their poor survival and potential in the ischemic environment limit their therapeutic efficacy for heart repair after MI. The purpose of this study was to investigate the influence of FoxC1-induced vascular niche on the activation of octamer-binding protein 4 (Oct4) and the fate of MSCs under hypoxic/ischemic conditions.
Methods Vascular microenvironment/niche was induced by efficient delivery of FoxC1 transfection into hypoxic endothelial cells (ECs) or infarcted hearts. MSCs were cultured or injected into this niche by utilizing an in vitro coculture model and a rat MI model. Survival and neovascularization of MSCs regulated by Oct4 were explored using gene transfer and functional studies.
Results Here, using gene expression heatmap, we demonstrated that cardiac ECs rapidly upregulated FoxC1 after acute ischemic cardiac injury, contributing to an intrinsic angiogenesis. In vitro, FoxC1 accelerated tube-like structure formation and increased survival of ECs, resulting in inducing a vascular microenvironment. Overexpression of FoxC1 in ECs promoted survival and neovascularization of MSCs under hypoxic coculture. Overexpression of Oct4, a FoxC1 target gene, in MSCs enhanced their mesenchymal-to-endothelial transition (MEndoT) while knockdown of Oct4 by siRNA altering vascularization. In a rat MI model, overexpression of FoxC1 in ischemic hearts increased post-infarct vascular density and improved cardiac function. The transplantation of adOct4-pretreated MSCs into these ischemic niches augments MEndoT, enhanced vascularity, and further improved cardiac function. Consistently, these cardioprotective effects of FoxC1 was abrogated when Oct4 was depleted in the MSCs and was mimicked by overexpression of Oct4. Conclusions Together, these studies demonstrate that the FoxC1/Oct4 axis is an essential aspect for survival and neovascularization of MSCs in the ischemic conditions and represents a potential therapeutic target for enhancing cardiac repair. Supplementary Information The online version contains supplementary material available at 10.1186/s13287-021-02553-w.
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Affiliation(s)
- Zhou Ji
- Department of Cardiology, Guangzhou Red Cross Hospital Medical College of Jinan University, 396 Tongfuzhong Road, Haizhu District, Guangzhou, 510220, China.,Department of Cardiology, The Third Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121001, Liaoning, China
| | - Songsheng Chen
- Department of Cardiology, Guangzhou Red Cross Hospital Medical College of Jinan University, 396 Tongfuzhong Road, Haizhu District, Guangzhou, 510220, China
| | - Jin Cui
- Department of Cardiology, Guangzhou Red Cross Hospital Medical College of Jinan University, 396 Tongfuzhong Road, Haizhu District, Guangzhou, 510220, China
| | - Weiguang Huang
- Department of Cardiology, Guangzhou Red Cross Hospital Medical College of Jinan University, 396 Tongfuzhong Road, Haizhu District, Guangzhou, 510220, China
| | - Rui Zhang
- Department of Cardiology, Guangzhou Red Cross Hospital Medical College of Jinan University, 396 Tongfuzhong Road, Haizhu District, Guangzhou, 510220, China
| | - Jianrui Wei
- Department of Cardiology, Guangzhou Red Cross Hospital Medical College of Jinan University, 396 Tongfuzhong Road, Haizhu District, Guangzhou, 510220, China
| | - Shaoheng Zhang
- Department of Cardiology, Guangzhou Red Cross Hospital Medical College of Jinan University, 396 Tongfuzhong Road, Haizhu District, Guangzhou, 510220, China.
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9
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Insights into the mechanism of vascular endothelial cells on bone biology. Biosci Rep 2021; 41:227494. [PMID: 33403387 PMCID: PMC7816070 DOI: 10.1042/bsr20203258] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 12/25/2020] [Accepted: 01/04/2021] [Indexed: 12/16/2022] Open
Abstract
In the skeletal system, blood vessels not only function as a conduit system for transporting gases, nutrients, metabolic waste, or cells but also provide multifunctional signal molecules regulating bone development, regeneration, and remodeling. Endothelial cells (ECs) in bone tissues, unlike in other organ tissues, are in direct contact with the pericytes of blood vessels, resulting in a closer connection with peripheral connective tissues. Close-contact ECs contribute to osteogenesis and osteoclastogenesis by secreting various cytokines in the paracrine or juxtacrine pathways. An increasing number of studies have revealed that extracellular vesicles (EVs) derived from ECs can directly regulate maturation process of osteoblasts and osteoclasts. The different pathways focus on targets at different distances, forming the basis of the intimate spatial and temporal link between bone tissue and blood vessels. Here, we provide a systematic review to elaborate on the function of ECs in bone biology and its underlying mechanisms based on three aspects: paracrine, EVs, and juxtacrine. This review proposes the possibility of a therapeutic strategy targeting blood vessels, as an adjuvant treatment for bone disorders.
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Reddy LVK, Murugan D, Mullick M, Begum Moghal ET, Sen D. Recent Approaches for Angiogenesis in Search of Successful Tissue Engineering and Regeneration. Curr Stem Cell Res Ther 2020; 15:111-134. [PMID: 31682212 DOI: 10.2174/1574888x14666191104151928] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 05/28/2019] [Accepted: 08/06/2019] [Indexed: 02/06/2023]
Abstract
Angiogenesis plays a central role in human physiology from reproduction and fetal development to wound healing and tissue repair/regeneration. Clinically relevant therapies are needed for promoting angiogenesis in order to supply oxygen and nutrients after transplantation, thus relieving the symptoms of ischemia. Increase in angiogenesis can lead to the restoration of damaged tissues, thereby leading the way for successful tissue regeneration. Tissue regeneration is a broad field that has shown the convergence of various interdisciplinary fields, wherein living cells in conjugation with biomaterials have been tried and tested on to the human body. Although there is a prevalence of various approaches that hypothesize enhanced tissue regeneration via angiogenesis, none of them have been successful in gaining clinical relevance. Hence, the current review summarizes the recent cell-based and cell free (exosomes, extracellular vesicles, micro-RNAs) therapies, gene and biomaterial-based approaches that have been used for angiogenesis-mediated tissue regeneration and have been applied in treating disease models like ischemic heart, brain stroke, bone defects and corneal defects. This review also puts forward a concise report of the pre-clinical and clinical studies that have been performed so far; thereby presenting the credible impact of the development of biomaterials and their 3D concepts in the field of tissue engineering and regeneration, which would lead to the probable ways for heralding the successful future of angiogenesis-mediated approaches in the greater perspective of tissue engineering and regenerative medicine.
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Affiliation(s)
- Lekkala Vinod Kumar Reddy
- Cellular and Molecular Therapeutics Laboratory, Centre for Biomaterials, Cellular and Molecular Theranostics, Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
| | - Durai Murugan
- Cellular and Molecular Therapeutics Laboratory, Centre for Biomaterials, Cellular and Molecular Theranostics, Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
| | - Madhubanti Mullick
- Cellular and Molecular Therapeutics Laboratory, Centre for Biomaterials, Cellular and Molecular Theranostics, Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
| | - Erfath Thanjeem Begum Moghal
- Cellular and Molecular Therapeutics Laboratory, Centre for Biomaterials, Cellular and Molecular Theranostics, Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India
| | - Dwaipayan Sen
- Cellular and Molecular Therapeutics Laboratory, Centre for Biomaterials, Cellular and Molecular Theranostics, Vellore Institute of Technology (VIT), Vellore 632014, Tamil Nadu, India.,University of Georgia, Athens, GA, United States
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An alginate/poly(N-isopropylacrylamide)-based composite hydrogel dressing with stepwise delivery of drug and growth factor for wound repair. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 115:111123. [DOI: 10.1016/j.msec.2020.111123] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 05/24/2020] [Accepted: 05/24/2020] [Indexed: 02/07/2023]
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12
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Vreeken D, Zhang H, van Zonneveld AJ, van Gils JM. Ephs and Ephrins in Adult Endothelial Biology. Int J Mol Sci 2020; 21:ijms21165623. [PMID: 32781521 PMCID: PMC7460586 DOI: 10.3390/ijms21165623] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 07/29/2020] [Accepted: 08/04/2020] [Indexed: 12/19/2022] Open
Abstract
Eph receptors and their ephrin ligands are important guidance molecules during neurological and vascular development. In recent years, it has become clear that the Eph protein family remains functional in adult physiology. A subset of Ephs and ephrins is highly expressed by endothelial cells. As endothelial cells form the first barrier between the blood and surrounding tissues, maintenance of a healthy endothelium is crucial for tissue homeostasis. This review gives an overview of the current insights of the role of ephrin ligands and receptors in endothelial function and leukocyte recruitment in the (patho)physiology of adult vascular biology.
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Gong T, Xu J, Heng B, Qiu S, Yi B, Han Y, Lo ECM, Zhang C. EphrinB2/EphB4 Signaling Regulates DPSCs to Induce Sprouting Angiogenesis of Endothelial Cells. J Dent Res 2019; 98:803-812. [PMID: 31017515 DOI: 10.1177/0022034519843886] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Dental pulp stem cells (DPSCs) are capable of facilitating angiogenesis resembling pericytes when located adjacent to endothelial cells (ECs). Nevertheless, the precise mechanisms orchestrating their proangiogenic functions remain unclear. Using a 3-dimensional (3-D) fibrin gel model, we aimed to investigate whether EphrinB2/EphB4 signaling in DPSCs plays a role in supporting vascular morphogenesis mediated by ECs, together with the underlying mechanism involved. The EphrinB2/EphB4 signaling was inhibited either by a pharmacological inhibitor of EphB4 receptor or by knocking down the expressions of EphrinB2 and EphB4 using lentiviral small hairpin RNA (shRNA). DPSCs were either encapsulated in fibrin gel together with human umbilical vein endothelial cells (HUVECs) or cultured as a monolayer on top of HUVECs to investigate both paracrine and juxtacrine interactions simultaneously. Following 10 d of direct coculture, we found that pharmacological inhibition of EphrinB2/EphB4 signaling severely impaired vessel formation and laminin deposition. When directly cocultured with HUVECs, knockdown of EphrinB2 or EphB4 in DPSCs significantly inhibited endothelial sprouting, resulting in less capillary sprouts with reduced vessel length (P < 0.05). By contrast, when DPSCs were not in direct contact with HUVECs, attenuation of EphrinB2 or EphB4 expression levels in DPSCs did not exert any significant effects on capillary morphogenesis. Noticeably, exogenous stimulation with soluble EphrinB2-Fc or EphB4-Fc (1 µg/mL) enhanced vascular endothelial growth factor (VEGF) secretion from DPSCs, thereby moderately promoting angiogenic cascades in the fibrin matrix. This study, for the first time, reveals a crucial role of EphrinB2/EphB4 signaling in regulating the capacity of DPSCs to induce sprouting angiogenesis. These findings advance our understanding of postnatal angiogenesis and may have future regenerative medicine applications.
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Affiliation(s)
- T Gong
- 1 Endodontology, Faculty of Dentistry, The University of Hong Kong, Pokfulam, Hong Kong, China.,4 HKU Shenzhen Institute of Research and Innovation, Hong Kong, China
| | - J Xu
- 1 Endodontology, Faculty of Dentistry, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - B Heng
- 1 Endodontology, Faculty of Dentistry, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - S Qiu
- 2 Shenzhen Key Laboratory of ENT, Institute of ENT & Longgang ENT Hospital, Shenzhen, China
| | - B Yi
- 1 Endodontology, Faculty of Dentistry, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - Y Han
- 1 Endodontology, Faculty of Dentistry, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - E C M Lo
- 3 Dental Public Health, Faculty of Dentistry, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - C Zhang
- 1 Endodontology, Faculty of Dentistry, The University of Hong Kong, Pokfulam, Hong Kong, China.,4 HKU Shenzhen Institute of Research and Innovation, Hong Kong, China
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Yuan C, Wang P, Zhu S, Liu Z, Wang W, Geng T, Dissanayaka WL, Jin L, Zhang C. Overexpression of ephrinB2 in stem cells from apical papilla accelerates angiogenesis. Oral Dis 2019; 25:848-859. [PMID: 30667136 DOI: 10.1111/odi.13042] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Revised: 12/17/2018] [Accepted: 01/16/2019] [Indexed: 12/30/2022]
Abstract
OBJECTIVES We aimed to accelerate angiogenesis in pulp regeneration by modulating ephrinB2 expression in stem cells from apical papilla (SCAPs). MATERIALS AND METHODS Stem cells from apical papilla were transducted with ephrinB2-lentiviral expression vector (ephrinB2-SCAPs) in experimental group and green fluorescent protein (GFP-SCAPs) in control group. The transduction efficiency was confirmed by real-time PCR and Western blot assays. MTT assay was performed to detect the proliferative capacity of SCAPs after transduction. In vitro Matrigel assay and in vivo Matrigel plug assay were carried out to evaluate the angiogenic capacity. RESULTS Results showed that ephrinB2-SCAPs had significantly higher ephrinB2 expression than GFP-SCAPs. EphrinB2-SCAPs upregulated vascular endothelial growth factor (VEGF) secretion under hypoxia. In vitro Matrigel assay demonstrated that human umbilical vein endothelial cells (HUVECs) cocultured with ephrinB2-SCAPs under hypoxia formed vascular-like structures earlier than GFP-SCAPs. Animal experiments confirmed that SCAPs co-transplanted with HUVECs enabled to generate greater amount of blood vessels than SCAPs alone. EphrinB2-SCAPs produced increased number of blood vessels with references to GFP-SCAPs, and those co-transplanted with HUVECs generated vessels with larger and functional tubule volumes. CONCLUSIONS Regulating ephrinB2 expression in SCAPs may act as a new avenue for enhancing angiogenesis in dental pulp regeneration.
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Affiliation(s)
- Changyong Yuan
- Endodontology, Faculty of Dentistry, The University of Hong Kong, Hong Kong, Hong Kong.,HKU Shenzhen Institute of Research and Innovation, Shenzhen, China.,Dental Implant Center, Affiliated Xuzhou Stomatological Hospital of Xuzhou Medical University, Xuzhou, China
| | - Penglai Wang
- Dental Implant Center, Affiliated Xuzhou Stomatological Hospital of Xuzhou Medical University, Xuzhou, China
| | - Shaoyue Zhu
- Dental Implant Center, Affiliated Xuzhou Stomatological Hospital of Xuzhou Medical University, Xuzhou, China
| | - Zongxiang Liu
- Dental Implant Center, Affiliated Xuzhou Stomatological Hospital of Xuzhou Medical University, Xuzhou, China
| | - Wen Wang
- Dental Implant Center, Affiliated Xuzhou Stomatological Hospital of Xuzhou Medical University, Xuzhou, China
| | - Tengyu Geng
- Dental Implant Center, Affiliated Xuzhou Stomatological Hospital of Xuzhou Medical University, Xuzhou, China
| | - Waruna Lakmal Dissanayaka
- Endodontology, Faculty of Dentistry, The University of Hong Kong, Hong Kong, Hong Kong.,HKU Shenzhen Institute of Research and Innovation, Shenzhen, China
| | - Lijian Jin
- Periodontology, Faculty of Dentistry, The University of Hong Kong, Hong Kong, Hong Kong
| | - Chengfei Zhang
- Endodontology, Faculty of Dentistry, The University of Hong Kong, Hong Kong, Hong Kong.,HKU Shenzhen Institute of Research and Innovation, Shenzhen, China
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