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Su C, Mo J, Dong S, Liao Z, Zhang B, Zhu P. Integrinβ-1 in disorders and cancers: molecular mechanisms and therapeutic targets. Cell Commun Signal 2024; 22:71. [PMID: 38279122 PMCID: PMC10811905 DOI: 10.1186/s12964-023-01338-3] [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: 08/23/2023] [Accepted: 09/27/2023] [Indexed: 01/28/2024] Open
Abstract
Integrinβ-1 (ITGB1) is a crucial member of the transmembrane glycoprotein signaling receptor family and is also central to the integrin family. It forms heterodimers with other ligands, participates in intracellular signaling and controls a variety of cellular processes, such as angiogenesis and the growth of neurons; because of its role in bidirectional signaling regulation both inside and outside the membrane, ITGB1 must interact with a multitude of substances, so a variety of interfering factors can affect ITGB1 and lead to changes in its function. Over the past 20 years, many studies have confirmed a clear causal relationship between ITGB1 dysregulation and cancer development and progression in a wide range of benign diseases and solid tumor types, which may imply that ITGB1 is a prognostic biomarker and a therapeutic target for cancer treatment that warrants further investigation. This review summarizes the biological roles of ITGB1 in benign diseases and cancers, and compiles the current status of ITGB1 function and therapy in various aspects of tumorigenesis and progression. Finally, future research directions and application prospects of ITGB1 are suggested. Video Abstract.
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Affiliation(s)
- Chen Su
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, People's Republic of China
- Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan, Hubei, People's Republic of China
| | - Jie Mo
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, People's Republic of China
- Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan, Hubei, People's Republic of China
| | - Shuilin Dong
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, People's Republic of China
- Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan, Hubei, People's Republic of China
| | - Zhibin Liao
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, People's Republic of China.
- Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan, Hubei, People's Republic of China.
| | - Bixiang Zhang
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, People's Republic of China.
- Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan, Hubei, People's Republic of China.
- Key Laboratory of Organ Transplantation, Ministry of Education, Wuhan, Hubei, People's Republic of China.
- Key Laboratory of Organ Transplantation, National Health Commission, Wuhan, Hubei, People's Republic of China.
- Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, Hubei, People's Republic of China.
| | - Peng Zhu
- Hepatic Surgery Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 Jiefang Avenue, Wuhan, 430030, Hubei, People's Republic of China.
- Hubei Key Laboratory of Hepato-Pancreato-Biliary Diseases, Wuhan, Hubei, People's Republic of China.
- Key Laboratory of Organ Transplantation, Ministry of Education, Wuhan, Hubei, People's Republic of China.
- Key Laboratory of Organ Transplantation, National Health Commission, Wuhan, Hubei, People's Republic of China.
- Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, Hubei, People's Republic of China.
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2
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Osuka K, Ohmichi Y, Ohmichi M, Honma S, Suzuki C, Aoyama M, Iwami K, Watanabe Y, Miyachi S. Angiogenesis in the Outer Membrane of Chronic Subdural Hematomas through Thrombin-Cleaved Osteopontin and the Integrin α9 and Integrin β1 Signaling Pathways. Biomedicines 2023; 11:biomedicines11051440. [PMID: 37239111 DOI: 10.3390/biomedicines11051440] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 05/05/2023] [Indexed: 05/28/2023] Open
Abstract
BACKGROUND A chronic subdural hematoma (CSDH) is considered to be an inflammatory and angiogenic disease. The CSDH outer membrane, which contains inflammatory cells, plays an important role in CSDH development. Osteopontin (OPN) is an extracellular matrix protein that is cleaved by thrombin, generating the N-terminal half of OPN, which is prominently involved in integrin signal transduction. We explored the expression of the N-terminal half of OPN in CSDH fluid and the expression of integrins α9 and β1 and the downstream components of the angiogenic signaling pathways in the outer membrane of CSDHs. METHODS Twenty samples of CSDH fluid and eight samples of CSDH outer membrane were collected from patients suffering from CSDHs. The concentrations of the N-terminal half of OPN in CSDH fluid samples were measured using ELISA kits. The expression levels of integrins α9 and β1, vinculin, talin-1, focal adhesion kinase (FAK), paxillin, α-actin, Src and β-actin were examined by Western blot analysis. The expression levels of integrins α9 and β1, FAK and paxillin were also examined by immunohistochemistry. We investigated whether CSDH fluid could activate FAK in cultured endothelial cells in vitro. RESULTS The concentration of the N-terminal half of OPN in CSDH fluid was significantly higher than that in the serum. Western blot analysis confirmed the presence of these molecules. In addition, integrins α9 and β1, FAK and paxillin were localized in the endothelial cells of vessels within the CSDH outer membrane. FAK was significantly phosphorylated immediately after treatment with CSDH fluid. CONCLUSION Our data suggest that the N-terminal half of OPN in CSDH fluid promotes neovascularization in endothelial cells through integrins α9 and β1. The N-terminal half of OPN, which is part of the extracellular matrix, plays a critical role in the promotion of CSDHs.
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Affiliation(s)
- Koji Osuka
- Department of Neurological Surgery, Aichi Medical University, 1-1 Yazakokarimata, Nagakute 480-1195, Japan
| | - Yusuke Ohmichi
- Department of Anatomy II, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Kahoku 920-0293, Japan
| | - Mika Ohmichi
- Department of Anatomy II, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Kahoku 920-0293, Japan
| | - Satoru Honma
- Department of Anatomy II, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Kahoku 920-0293, Japan
| | - Chiharu Suzuki
- Department of Neurological Surgery, Aichi Medical University, 1-1 Yazakokarimata, Nagakute 480-1195, Japan
| | - Masahiro Aoyama
- Department of Neurological Surgery, Aichi Medical University, 1-1 Yazakokarimata, Nagakute 480-1195, Japan
| | - Kenichiro Iwami
- Department of Neurological Surgery, Aichi Medical University, 1-1 Yazakokarimata, Nagakute 480-1195, Japan
| | - Yasuo Watanabe
- High Technology Research Center, Pharmacology, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawa Gakuen, Machida 194-8543, Japan
| | - Shigeru Miyachi
- Department of Neurological Surgery, Aichi Medical University, 1-1 Yazakokarimata, Nagakute 480-1195, Japan
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3
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Huang JH, Chen YN, He H, Fu CH, Xu ZY, Lin FY. Schwann cells-derived exosomes promote functional recovery after spinal cord injury by promoting angiogenesis. Front Cell Neurosci 2023; 16:1077071. [PMID: 36687521 PMCID: PMC9846210 DOI: 10.3389/fncel.2022.1077071] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Accepted: 12/01/2022] [Indexed: 01/06/2023] Open
Abstract
Exosomes are small vesicles that contain diverse miRNA, mRNA, and proteins that are secreted by multiple cells, and play a vital function in cell-cell communication. Numerous exosomes produced by cells have been demonstrated to be protective against spinal cord injury (SCI). This study aims to investigate the neuroprotective effect of Schwann cells-derived exosomes (SCs-Exos) on spinal cord injury. We found that SCs-Exos can be taken directly by brain-derived endothelial cells.3 (bEnd.3 cells) and promoted to proliferate, migrate, and form bEnd.3 tube. Additionally, our results showed that the pro-angiogenesis molecules, Integrin-β1, were highly expressed in SCs-Exos. Moreover, we used special shRNA technology to investigate the role of Integrin-β1 in mediating the effect of SCs-Exos-induced angiogenesis on bEnd.3 cells. We observed that the pro-angiogenic effect of SCs-Exos on bEnd.3 cells was suppressed by inhibiting the expression of integrin-β1 in SCs-Exos. In the SCI model, we found that SCs-Exos attenuated tissue damage and improved functional recovery after SCI. Using immunofluorescence staining, we observed that SCs-Exos treatment promoted angiogenesis in SCI, and integrin-β1 was required to promote angiogenesis. In conclusion, our results indicate that SCs-Exos promote angiogenesis by delivering integrin-β1 and may serve as a promising novel therapeutic agent for enhancing neurological functional recovery after SCI.
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Affiliation(s)
- Jiang-Hu Huang
- Department of Orthopedics, Fujian Provincial Hospital, Fujian Medical University, Fuzhou, China
| | - Yong-Neng Chen
- Department of Orthopedics, Fujian Provincial Hospital, Fujian Medical University, Fuzhou, China
| | - Hang He
- Department of Orthopedics, Fujian Provincial Hospital, Fujian Medical University, Fuzhou, China
| | - Chun-Hui Fu
- Fuzhou Maixin Biotech. Co., Ltd., Fuzhou, China
| | - Zhao-Yi Xu
- Department of Orthopedics, Fujian Provincial Hospital, Fujian Medical University, Fuzhou, China
| | - Fei-Yue Lin
- Department of Orthopedics, Fujian Provincial Hospital, Fujian Medical University, Fuzhou, China,*Correspondence: Fei-Yue Lin,
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Hall ML, Givens S, Santosh N, Iacovino M, Kyba M, Ogle BM. Laminin 411 mediates endothelial specification via multiple signaling axes that converge on β-catenin. Stem Cell Reports 2022; 17:569-583. [PMID: 35120622 PMCID: PMC9039757 DOI: 10.1016/j.stemcr.2022.01.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 01/06/2022] [Accepted: 01/07/2022] [Indexed: 11/24/2022] Open
Abstract
The extracellular matrix (ECM) provides essential cues to promote endothelial specification during tissue development in vivo; correspondingly, ECM is considered essential for endothelial differentiation outside of the body. However, systematic studies to assess the precise contribution of individual ECM proteins to endothelial differentiation have not been conducted. Further, the multi-component nature of differentiation protocols makes it challenging to study the underlying mechanisms by which the ECM contributes to cell fate. In this study, we determined that Laminin 411 alone increases endothelial differentiation of induced pluripotent stem cells over collagen I or Matrigel. The effect of ECM was shown to be independent of vascular endothelial growth factor (VEGF) binding capacity. We also show that ECM-guided endothelial differentiation is dependent on activation of focal adhesion kinase (FAK), integrin-linked kinase (ILK), Notch, and β-catenin pathways. Our results indicate that ECM contributes to endothelial differentiation through multiple avenues, which converge at the expression of active β-catenin.
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Affiliation(s)
- Mikayla L Hall
- Department of Biomedical Engineering, University of Minnesota, Twin Cities, 7-130 Nils Hasselmo Hall, 312 Church St. SE, Minneapolis, MN 55455, USA; Stem Cell Institute, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA
| | - Sophie Givens
- Department of Biomedical Engineering, University of Minnesota, Twin Cities, 7-130 Nils Hasselmo Hall, 312 Church St. SE, Minneapolis, MN 55455, USA; Stem Cell Institute, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA
| | - Natasha Santosh
- Stem Cell Institute, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA; Department of Pediatrics, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA
| | - Michelina Iacovino
- Stem Cell Institute, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA; Department of Pediatrics, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA
| | - Michael Kyba
- Stem Cell Institute, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA; Department of Pediatrics, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA; Lillehei Heart Institute, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA
| | - Brenda M Ogle
- Department of Biomedical Engineering, University of Minnesota, Twin Cities, 7-130 Nils Hasselmo Hall, 312 Church St. SE, Minneapolis, MN 55455, USA; Stem Cell Institute, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA; Department of Pediatrics, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA; Lillehei Heart Institute, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA; Institute for Engineering in Medicine, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA; Masonic Cancer Center, University of Minnesota, Twin Cities, Minneapolis, MN 55455, USA.
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Rieck S, Kilgus S, Meyer JH, Huang H, Zhao L, Matthey M, Wang X, Schmitz-Valckenberg S, Fleischmann BK, Wenzel D. Inhibition of Vascular Growth by Modulation of the Anandamide/Fatty Acid Amide Hydrolase Axis. Arterioscler Thromb Vasc Biol 2021; 41:2974-2989. [PMID: 34615374 PMCID: PMC8608012 DOI: 10.1161/atvbaha.121.316973] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Supplemental Digital Content is available in the text. Objective: Pathological angiogenesis is a hallmark of various diseases characterized by local hypoxia and inflammation. These disorders can be treated with inhibitors of angiogenesis, but current compounds display a variety of side effects and lose efficacy over time. This makes the identification of novel signaling pathways and pharmacological targets involved in angiogenesis a top priority. Approach and Results: Here, we show that inactivation of FAAH (fatty acid amide hydrolase), the enzyme responsible for degradation of the endocannabinoid anandamide, strongly impairs angiogenesis in vitro and in vivo. Both, the pharmacological FAAH inhibitor URB597 and anandamide induce downregulation of gene sets for cell cycle progression and DNA replication in endothelial cells. This is underscored by cell biological experiments, in which both compounds inhibit proliferation and migration and evoke cell cycle exit of endothelial cells. This prominent antiangiogenic effect is also of pathophysiological relevance in vivo, as laser-induced choroidal neovascularization in the eye of FAAH−/− mice is strongly reduced. Conclusions: Thus, elevation of endogenous anandamide levels by FAAH inhibition represents a novel antiangiogenic mechanism.
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Affiliation(s)
- Sarah Rieck
- Institute of Physiology I, Life&Brain Center, Medical Faculty (S.R., S.K., B.K.F., D.W.), University of Bonn, Germany
| | - Sofia Kilgus
- Institute of Physiology I, Life&Brain Center, Medical Faculty (S.R., S.K., B.K.F., D.W.), University of Bonn, Germany
| | - Johanna H Meyer
- Department of Ophthalmology (J.H.M., S.S.-V.), University of Bonn, Germany
| | - Hao Huang
- Department of Biomedical Sciences, City University of Hong Kong (H.H., L.Z., X.W.)
| | - Lan Zhao
- Department of Biomedical Sciences, City University of Hong Kong (H.H., L.Z., X.W.)
| | - Michaela Matthey
- Department of Systems Physiology, Institute of Physiology, Medical Faculty, Ruhr University of Bochum, Germany (M.M., D.W.)
| | - Xin Wang
- Department of Biomedical Sciences, City University of Hong Kong (H.H., L.Z., X.W.)
| | - Steffen Schmitz-Valckenberg
- Department of Ophthalmology (J.H.M., S.S.-V.), University of Bonn, Germany.,John A. Moran Eye Center, Ophthalmology & Visual Science, University of Utah, Salt Lake City (S.S.-V.)
| | - Bernd K Fleischmann
- Institute of Physiology I, Life&Brain Center, Medical Faculty (S.R., S.K., B.K.F., D.W.), University of Bonn, Germany
| | - Daniela Wenzel
- Institute of Physiology I, Life&Brain Center, Medical Faculty (S.R., S.K., B.K.F., D.W.), University of Bonn, Germany.,Department of Systems Physiology, Institute of Physiology, Medical Faculty, Ruhr University of Bochum, Germany (M.M., D.W.)
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6
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Huang B, Yan X, Li Y. Cancer Stem Cell for Tumor Therapy. Cancers (Basel) 2021; 13:cancers13194814. [PMID: 34638298 PMCID: PMC8508418 DOI: 10.3390/cancers13194814] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 09/13/2021] [Accepted: 09/23/2021] [Indexed: 02/06/2023] Open
Abstract
Simple Summary Although many methods have been applied in clinical treatment for tumors, they still always show a poor prognosis. Molecule targeted therapy has revolutionized tumor therapy, and a proper target must be found urgently. With a crucial role in tumor development, metastasis and recurrence, cancer stem cells have been found to be a feasible and potential target for tumor therapy. We list the unique biological characteristics of cancer stem cells and summarize the recent strategies to target cancer stem cells for tumor therapy, through which we hope to provide a comprehensive understanding of cancer stem cells and find a better combinational strategy to target cancer stem cells for tumor therapy. Abstract Tumors pose a significant threat to human health. Although many methods, such as operations, chemotherapy and radiotherapy, have been proposed to eliminate tumor cells, the results are unsatisfactory. Targeting therapy has shown potential due to its specificity and efficiency. Meanwhile, it has been revealed that cancer stem cells (CSCs) play a crucial role in the genesis, development, metastasis and recurrence of tumors. Thus, it is feasible to inhibit tumors and improve prognosis via targeting CSCs. In this review, we provide a comprehensive understanding of the biological characteristics of CSCs, including mitotic pattern, metabolic phenotype, therapeutic resistance and related mechanisms. Finally, we summarize CSCs targeted strategies, including targeting CSCs surface markers, targeting CSCs related signal pathways, targeting CSC niches, targeting CSC metabolic pathways, inducing differentiation therapy and immunotherapy (tumor vaccine, CAR-T, oncolytic virus, targeting CSCs–immune cell crosstalk and immunity checkpoint inhibitor). We highlight the potential of immunity therapy and its combinational anti-CSC therapies, which are composed of different drugs working in different mechanisms.
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Affiliation(s)
- Binjie Huang
- Department of General Surgery, Second Hospital of Lanzhou University, Lanzhou 730030, China; (B.H.); (X.Y.)
- Key Laboratory of the Digestive System Tumors of Gansu Province, Second Hospital of Lanzhou University, Lanzhou 730030, China
| | - Xin Yan
- Department of General Surgery, Second Hospital of Lanzhou University, Lanzhou 730030, China; (B.H.); (X.Y.)
- Key Laboratory of the Digestive System Tumors of Gansu Province, Second Hospital of Lanzhou University, Lanzhou 730030, China
| | - Yumin Li
- Department of General Surgery, Second Hospital of Lanzhou University, Lanzhou 730030, China; (B.H.); (X.Y.)
- Key Laboratory of the Digestive System Tumors of Gansu Province, Second Hospital of Lanzhou University, Lanzhou 730030, China
- Correspondence: ; Tel.: +86-138-9361-5421
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7
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Targeting RGD-binding integrins as an integrative therapy for diabetic retinopathy and neovascular age-related macular degeneration. Prog Retin Eye Res 2021; 85:100966. [PMID: 33775825 DOI: 10.1016/j.preteyeres.2021.100966] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 03/15/2021] [Accepted: 03/19/2021] [Indexed: 12/14/2022]
Abstract
Integrins are a class of transmembrane receptors that are involved in a wide range of biological functions. Dysregulation of integrins has been implicated in many pathological processes and consequently, they are attractive therapeutic targets. In the ophthalmology arena, there is extensive evidence suggesting that integrins play an important role in diabetic retinopathy (DR), age-related macular degeneration (AMD), glaucoma, dry eye disease and retinal vein occlusion. For example, there is extensive evidence that arginyl-glycyl-aspartic acid (Arg-Gly-Asp; RGD)-binding integrins are involved in key disease hallmarks of DR and neovascular AMD (nvAMD), specifically inflammation, vascular leakage, angiogenesis and fibrosis. Based on such evidence, drugs that engage integrin-linked pathways have received attention for their potential to block all these vision-threatening pathways. This review focuses on the pathophysiological role that RGD-binding integrins can have in complex multifactorial retinal disorders like DR, diabetic macular edema (DME) and nvAMD, which are leading causes of blindness in developed countries. Special emphasis will be given on how RGD-binding integrins can modulate the intricate molecular pathways and regulate the underlying pathological mechanisms. For instance, the interplay between integrins and key molecular players such as growth factors, cytokines and enzymes will be summarized. In addition, recent clinical advances linked to targeting RGD-binding integrins in the context of DME and nvAMD will be discussed alongside future potential for limiting progression of these diseases.
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8
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Kumaravel S, Abbey CA, Bayless KJ, Chakraborty S. The β 1-integrin plays a key role in LEC invasion in an optimized 3-D collagen matrix model. Am J Physiol Cell Physiol 2020; 319:C1045-C1058. [PMID: 33052069 DOI: 10.1152/ajpcell.00299.2020] [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] [Indexed: 02/08/2023]
Abstract
Lymphangiogenesis, or formation of new lymphatic vessels, is a tightly regulated process that is controlled by growth factor signaling and biomechanical cues. Lymphatic endothelial cells (LECs) undergo remodeling, migration, and proliferation to invade the surrounding extracellular matrix (ECM) during both physiological and pathological lymphangiogenesis. This study optimized conditions for an in vitro three-dimensional (3-D) collagen-based model that induced LEC invasion and recapitulated physiological formation of lymphatic capillaries with lumens. Invasion of LECs was enhanced in the presence of sphingosine 1-phosphate (S1P). Effects of various known lymphangiogenic factors, vascular endothelial growth factor (VEGF)-A, basic fibroblast growth factor (bFGF), interleukin (IL)-8, and hepatocyte growth factor (HGF), were tested on LEC sprout formation synergistically with VEGF-C. Several of these growth factors significantly enhanced LEC invasion, and synergistic effects of some of these further enhanced the sprouting density and lumen volume. To determine the contribution of specific ECM components, we analyzed the expression of different integrin subunits. Basal expressions of the integrin α5- and integrin β1-subunits were high in LECs. The addition of fibronectin, which mediates cellular responses through these integrins, enhanced LEC sprouting density and sprout length dose-dependently. siRNA-mediated knockdown of the integrin β1-subunit suppressed LEC invasion and also inhibited VEGF receptor (VEGFR)3 and ERK activation. Furthermore, exposing LECs to the inflammatory mediator lipopolysaccharide (LPS) inhibited sprouting. This optimized model for LEC invasion includes S1P, VEGF-C, and fibronectin within a 3-D collagen matrix, along with VEGF-C, VEGF-A, bFGF, and HGF in the culture medium, and provides a useful tool to investigate the functional effect of various lymphangiogenic factors and inhibitors.
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Affiliation(s)
- Subhashree Kumaravel
- Department of Medical Physiology, Texas A&M Health Science Center, College of Medicine, Bryan, Texas
| | - Colette A Abbey
- Department of Molecular and Cellular Medicine, Texas A&M Health Science Center, Bryan, Texas
| | - Kayla J Bayless
- Department of Molecular and Cellular Medicine, Texas A&M Health Science Center, Bryan, Texas
| | - Sanjukta Chakraborty
- Department of Medical Physiology, Texas A&M Health Science Center, College of Medicine, Bryan, Texas
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Peng L, Fu C, Liang Z, Zhang Q, Xiong F, Chen L, He C, Wei Q. Pulsed Electromagnetic Fields Increase Angiogenesis and Improve Cardiac Function After Myocardial Ischemia in Mice. Circ J 2020; 84:186-193. [PMID: 31915323 DOI: 10.1253/circj.cj-19-0758] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Previous studies have shown that pulsed electromagnetic fields (PEMF) stimulate angiogenesis and may be a potential treatment strategy to improve cardiac function after myocardial infarction (MI). This study explored the effects and its related mechanisms of PEMF in MI mice.Methods and Results:MI mice were used in PEMF treatment (15 Hz 1.5 mT PEMF or 30 Hz 3.0 mT PEMF) for 45 min per day for 2 weeks. Furthermore, an in vivo Matrigel plug assay was used to observe the effect of PEMF in promoting angiogenesis. Compared with the sham PEMF group, PEMF treatment with 30 Hz 3.0 mT significantly improved heart function. PEMF treatment with 15 Hz 1.5 mT and 30 Hz 3.0 mT both increased capillary density, decreased infarction area size, increased the protein expression of vascular endothelial growth factor (VEGF), vascular endothelial growth factor receptor 2 (VEGFR2), Ser473-phosphorylated Akt (pSer473-Akt) and S1177-phosphorylated endothelial nitric oxide synthase (pS1177-eNOS), and increased the mRNA level of VEGF and hypoxia inducible factor 1-alpha (HIF-1α) in the infarct border zone. Additionally, treatment with 30 Hz 3.0 mT also increased protein and mRNA level of fibroblast growth factor 2 (FGF2), and protein level of β1 integrin, and shows a stronger therapeutic effect. CONCLUSIONS PEMF treatment could promote angiogenesis of the infarct border zone and improve cardiac function in MI mice. A treatment parameter of 30 Hz 3.0 mT is remarkably effective in MI mice. The effect is associated with the proangiogenic signaling pathways of HIF-1α/VEGF/Akt/eNOS or HIF-1α/FGF2/Akt/eNOS.
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Affiliation(s)
- Lihong Peng
- Department of Rehabilitation Medicine Center, West China Hospital, Sichuan University.,Key Laboratory of Rehabilitation Medicine in Sichuan Province
| | - Chenying Fu
- Department of Rehabilitation Medicine Center, West China Hospital, Sichuan University.,State Key Laboratory of Biotherapy, West China Hospital, Sichuan University
| | - Zejun Liang
- Department of Rehabilitation Medicine Center, West China Hospital, Sichuan University.,Key Laboratory of Rehabilitation Medicine in Sichuan Province
| | - Qing Zhang
- Department of Rehabilitation Medicine Center, West China Hospital, Sichuan University.,Key Laboratory of Rehabilitation Medicine in Sichuan Province
| | - Feng Xiong
- Department of Rehabilitation Medicine Center, West China Hospital, Sichuan University.,Key Laboratory of Rehabilitation Medicine in Sichuan Province
| | - Li Chen
- Department of Rehabilitation Medicine Center, West China Hospital, Sichuan University.,Key Laboratory of Rehabilitation Medicine in Sichuan Province
| | - Chengqi He
- Department of Rehabilitation Medicine Center, West China Hospital, Sichuan University.,Key Laboratory of Rehabilitation Medicine in Sichuan Province
| | - Quan Wei
- Department of Rehabilitation Medicine Center, West China Hospital, Sichuan University.,Key Laboratory of Rehabilitation Medicine in Sichuan Province
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Elkhodiry MA, Boulanger MD, Bashth O, Tanguay JF, Laroche G, Hoesli CA. Isolating and expanding endothelial progenitor cells from peripheral blood on peptide-functionalized polystyrene surfaces. Biotechnol Bioeng 2019; 116:2598-2609. [PMID: 31286475 DOI: 10.1002/bit.27107] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 06/19/2019] [Accepted: 07/01/2019] [Indexed: 11/11/2022]
Abstract
The expansion of human peripheral blood endothelial progenitor cells to obtain therapeutically relevant endothelial colony-forming cells (ECFCs) has been commonly performed on xeno-derived extracellular matrix proteins. For cellular therapy applications, xeno-free culture conditions are desirable to improve product safety and reduce process variability. We have previously described a novel fluorophore-tagged RGD peptide (RGD-TAMRA) that enhanced the adhesion of mature endothelial cells in vitro. To investigate whether this peptide can replace animal-derived extracellular matrix proteins in the isolation and expansion of ECFCs, peripheral blood mononuclear cells from 22 healthy adult donors were seeded on RGD-TAMRA-modified polystyrene culture surfaces. Endothelial colony formation was significantly enhanced on RGD-TAMRA-modified surfaces compared to the unmodified control. No phenotypic differences were detected between ECFCs obtained on RGD-TAMRA compared to ECFCs obtained on rat-tail collagen-coated surfaces. Compared with collagen-coated surfaces and unmodified surfaces, RGD-TAMRA surfaces promoted ECFC adhesion, cell spreading, and clonal expansion. This study presents a platform that allows for a comprehensive in vitro evaluation of peptide-based biofunctionalization as a promising avenue for ex vivo ECFC expansion.
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Affiliation(s)
- Mohamed A Elkhodiry
- Department of Chemical Engineering, McGill University, Montréal, Quebec, Canada
| | - Mariève D Boulanger
- Department of Chemical Engineering, McGill University, Montréal, Quebec, Canada
| | - Omar Bashth
- Department of Chemical Engineering, McGill University, Montréal, Quebec, Canada
| | - Jean-François Tanguay
- Coronary Care Unit, Montréal Heart Institute, Montréal, Quebec, Canada.,Department of Medicine, Université de Montréal, Montréal, Quebec, Canada
| | - Gaétan Laroche
- Département de Génie des Mines, des Matériaux et de la Métallurgie, Centre de Recherche du CHU de Québec, Université Laval, Quebec City, Quebec, Canada
| | - Corinne A Hoesli
- Department of Chemical Engineering, McGill University, Montréal, Quebec, Canada
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11
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Lucas ED, Tamburini BAJ. Lymph Node Lymphatic Endothelial Cell Expansion and Contraction and the Programming of the Immune Response. Front Immunol 2019; 10:36. [PMID: 30740101 PMCID: PMC6357284 DOI: 10.3389/fimmu.2019.00036] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 01/08/2019] [Indexed: 12/12/2022] Open
Abstract
Lymphatic endothelial cells (LECs) form the structure of the lymphatic vessels and the sinuses of the lymph nodes, positioning them to be key players in many different aspects of the immune response. Following an inflammatory stimulus, LECs produce chemokines that recruit immune cells to the lymph nodes. The recruitment of immune cells aids in the coordination of both LEC and lymph node expansion and contraction. More recent data has demonstrated that to coordinate LEC division and death, cell surface molecules, such as PD-L1 and interferon receptors, are required. During homeostasis, LECs use PD-L1 to maintain peripheral tolerance by presenting specific peripheral tissue antigens in order to eliminate tissue specific responses. LECs also have the capacity to acquire, present, and exchange foreign antigens following viral infection or immunization. Here we will review how lymph node LECs require immune cells to expand and contract in response to an immune stimulus, the factors involved and how direct LEC-immune cell interactions are important for programming immunity.
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Affiliation(s)
- Erin D Lucas
- Division of Gastroenterology and Hepatology, Department of Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, United States.,Department of Immunology and Microbiology, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Beth A J Tamburini
- Division of Gastroenterology and Hepatology, Department of Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, United States.,Department of Immunology and Microbiology, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
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12
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Winkler F, Herz K, Rieck S, Kimura K, Hu T, Röll W, Hesse M, Fleischmann BK, Wenzel D. PECAM/eGFP transgenic mice for monitoring of angiogenesis in health and disease. Sci Rep 2018; 8:17582. [PMID: 30514882 PMCID: PMC6279819 DOI: 10.1038/s41598-018-36039-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 11/12/2018] [Indexed: 12/16/2022] Open
Abstract
For the monitoring of vascular growth as well as adaptive or therapeutic (re)vascularization endothelial-specific reporter mouse models are valuable tools. However, currently available mouse models have limitations, because not all endothelial cells express the reporter in all developmental stages. We have generated PECAM/eGFP embryonic stem (ES) cell and mouse lines where the reporter gene labels PECAM+ endothelial cells and vessels with high specificity. Native eGFP expression and PECAM staining were highly co-localized in vessels of various organs at embryonic stages E9.5, E15.5 and in adult mice. Expression was found in large and small arteries, capillaries and in veins but not in lymphatic vessels. Also in the bone marrow arteries and sinusoidal vessel were labeled, moreover, we could detect eGFP in some CD45+ hematopoietic cells. We also demonstrate that this labeling is very useful to monitor sprouting in an aortic ring assay as well as vascular remodeling in a murine injury model of myocardial infarction. Thus, PECAM/eGFP transgenic ES cells and mice greatly facilitate the monitoring and quantification of endothelial cells ex vivo and in vivo during development and injury.
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Affiliation(s)
- Florian Winkler
- Institute of Physiology I, Life&Brain Center, Medical Faculty, University of Bonn, Bonn, Germany
| | - Katia Herz
- Institute of Physiology I, Life&Brain Center, Medical Faculty, University of Bonn, Bonn, Germany
| | - Sarah Rieck
- Institute of Physiology I, Life&Brain Center, Medical Faculty, University of Bonn, Bonn, Germany
| | - Kenichi Kimura
- Institute of Physiology I, Life&Brain Center, Medical Faculty, University of Bonn, Bonn, Germany
| | - Tianyuan Hu
- Institute of Physiology I, Life&Brain Center, Medical Faculty, University of Bonn, Bonn, Germany
| | - Wilhelm Röll
- Department of Cardiac Surgery, Medical Faculty, University of Bonn, Bonn, Germany
| | - Michael Hesse
- Institute of Physiology I, Life&Brain Center, Medical Faculty, University of Bonn, Bonn, Germany
| | - Bernd K Fleischmann
- Institute of Physiology I, Life&Brain Center, Medical Faculty, University of Bonn, Bonn, Germany
| | - Daniela Wenzel
- Institute of Physiology I, Life&Brain Center, Medical Faculty, University of Bonn, Bonn, Germany.
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13
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Azuma M, Tsukada T, Inagaki T, Casmad F, Jindatip D, Tofrizal A, Maliza R, Batchuluun K, Syaidah R, Ohno N, Fujiwara K, Kikuchi M, Yashiro T. Immunohistochemical Study of the Laminin α5 Chain and Its Specific Receptor, Basal Cell Adhesion Molecule (BCAM), in both Fetal and Adult Rat Pituitary Glands. Acta Histochem Cytochem 2018; 51:145-152. [PMID: 30510328 PMCID: PMC6261841 DOI: 10.1267/ahc.18014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 08/10/2018] [Indexed: 01/01/2023] Open
Abstract
Laminin, a major basement membrane protein, comprises three subunit chains: α, β, and γ chains. Among these chains, only the laminin α chain is capable of signaling via laminin receptors. Although laminin isoforms containing the α5 chain were reported to be the first laminin produced during rat anterior pituitary gland development, the functions of these isoforms are unknown. We used immunohistochemical techniques to localize the laminin α5 chain and its specific receptor, basal cell adhesion molecule (BCAM), in fetal and adult pituitary gland. Laminin α5 chain immunoreactivity was observed in the basement membrane of the primordial adenohypophysis at embryonic days 12.5 to 19.5. Double immunostaining showed that BCAM was present and co-localized with the laminin α5 chain in the tissue. Quantitative analysis showed that the laminin α5 chain and BCAM were expressed in the anterior pituitary gland during postnatal development and in adulthood (postnatal day 60). In the adult gland, co-localization of the laminin α5 chain and BCAM was observed, and BCAM was detected in both the folliculo-stellate cells and endothelial cells. These results suggest that laminin α5 chain signaling via BCAM occurs in both the fetal adenohypophysis and adult anterior pituitary gland.
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Affiliation(s)
- Morio Azuma
- Division of Histology and Cell Biology, Department of Anatomy, Jichi Medical University School of Medicine
| | - Takehiro Tsukada
- Department of Biomolecular Science, Faculty of Science, Toho University
| | - Takeshi Inagaki
- Division of Forensic Medicine, Department of Anatomy, Jichi Medical University School of Medicine
| | - Fujianti Casmad
- Division of Histology and Cell Biology, Department of Anatomy, Jichi Medical University School of Medicine
| | - Depicha Jindatip
- Division of Histology and Cell Biology, Department of Anatomy, Jichi Medical University School of Medicine
- Department of Anatomy, Faculty of Medicine, Chulalongkorn University
| | - Alimuddin Tofrizal
- Division of Histology and Cell Biology, Department of Anatomy, Jichi Medical University School of Medicine
| | - Rita Maliza
- Division of Histology and Cell Biology, Department of Anatomy, Jichi Medical University School of Medicine
| | - Khongorzul Batchuluun
- Division of Histology and Cell Biology, Department of Anatomy, Jichi Medical University School of Medicine
| | - Rahimi Syaidah
- Division of Histology and Cell Biology, Department of Anatomy, Jichi Medical University School of Medicine
| | - Nobuhiko Ohno
- Division of Histology and Cell Biology, Department of Anatomy, Jichi Medical University School of Medicine
| | - Ken Fujiwara
- Division of Histology and Cell Biology, Department of Anatomy, Jichi Medical University School of Medicine
| | - Motoshi Kikuchi
- Division of Histology and Cell Biology, Department of Anatomy, Jichi Medical University School of Medicine
- Laboratory of Natural History, Jichi Medical University School of Medicine
| | - Takashi Yashiro
- Division of Histology and Cell Biology, Department of Anatomy, Jichi Medical University School of Medicine
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14
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Lucas ED, Finlon JM, Burchill MA, McCarthy MK, Morrison TE, Colpitts TM, Tamburini BAJ. Type 1 IFN and PD-L1 Coordinate Lymphatic Endothelial Cell Expansion and Contraction during an Inflammatory Immune Response. THE JOURNAL OF IMMUNOLOGY 2018; 201:1735-1747. [PMID: 30045970 DOI: 10.4049/jimmunol.1800271] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 07/09/2018] [Indexed: 12/16/2022]
Abstract
Lymph node (LN) expansion during an immune response is a complex process that involves the relaxation of the fibroblastic network, germinal center formation, and lymphatic vessel growth. These processes require the stromal cell network of the LN to act deliberately to accommodate the influx of immune cells to the LN. The molecular drivers of these processes are not well understood. Therefore, we asked whether the immediate cytokines type 1 IFN produced during viral infection influence the lymphatic network of the LN in mice. We found that following an IFN-inducing stimulus such as viral infection or polyI:C, programmed cell death ligand 1 (PD-L1) expression is dynamically upregulated on lymphatic endothelial cells (LECs). We found that reception of type 1 IFN by LECs is important for the upregulation of PD-L1 of mouse and human LECs and the inhibition of LEC expansion in the LN. Expression of PD-L1 by LECs is also important for the regulation of LN expansion and contraction after an IFN-inducing stimulus. We demonstrate a direct role for both type 1 IFN and PD-L1 in inhibiting LEC division and in promoting LEC survival. Together, these data reveal a novel mechanism for the coordination of type 1 IFN and PD-L1 in manipulating LEC expansion and survival during an inflammatory immune response.
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Affiliation(s)
- Erin D Lucas
- Division of Gastroenterology and Hepatology, Department of Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045.,Department of Immunology and Microbiology, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Jeffrey M Finlon
- Division of Gastroenterology and Hepatology, Department of Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Matthew A Burchill
- Division of Gastroenterology and Hepatology, Department of Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Mary K McCarthy
- Department of Immunology and Microbiology, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Thomas E Morrison
- Department of Immunology and Microbiology, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Tonya M Colpitts
- National Emerging Infectious Diseases Laboratories, Boston University, Boston, MA 02118; and.,Department of Microbiology, Boston University School of Medicine, Boston, MA 02118
| | - Beth A Jirón Tamburini
- Division of Gastroenterology and Hepatology, Department of Medicine, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045; .,Department of Immunology and Microbiology, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
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15
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He C, Yang Z, Jin Y, Qi X, Chu J, Deng X. ADM Scaffolds Generate a Pro-regenerative Microenvironment During Full-Thickness Cutaneous Wound Healing Through M2 Macrophage Polarization via Lamtor1. Front Physiol 2018; 9:657. [PMID: 29915541 PMCID: PMC5994424 DOI: 10.3389/fphys.2018.00657] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 05/14/2018] [Indexed: 12/21/2022] Open
Abstract
Adult mammalian skin has a defective regenerative capacity following full-thickness cutaneous injury; this defect overshadows the complete physiological functions of the skin. Immune-mediated skin reconstruction driven by biological scaffolds is a recently developed innovative repair strategy to support regenerative wound healing. However, to date, little is known about how biological scaffolds orchestrate the immune response to promote regeneration. Here, using acellular dermal matrix (ADM) scaffolds, we discovered that the default pro-inflammatory response was altered in response to a pro-regenerative response characterized by specific M2 polarization. M2 macrophages subsequently produced a series of wound healing factors, including matrix metalloproteinases (Mmps), and growth factors which promoted cell proliferation, stabilized angiogenesis, and remodeled the extracellular matrix. Our investigations further revealed that the M2 polarization of macrophages arose from an ADM scaffold-derived amino acid sufficiency signal by collagen degradation via macrophage phagocytosis, which activated the acid-sensing pathway (v-ATPase, Lamtor1, and mTORC1). Lamtor1, the acid-sensing pathway-associated lysosomal adaptor protein was critical for inducing M2 polarization, while with the presence of extracellular interleukin 4 (IL4). Our results suggest that ADM scaffolds generate a pro-regenerative microenvironment during full-thickness cutaneous wound healing through M2 macrophage polarization via Lamtor1.
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Affiliation(s)
- Chengmin He
- MOE Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - Zhi Yang
- MOE Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - Ying Jin
- MOE Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - Xiaoyang Qi
- MOE Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - Jin Chu
- MOE Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - Xiaoyuan Deng
- MOE Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
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16
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Herz K, Becker A, Shi C, Ema M, Takahashi S, Potente M, Hesse M, Fleischmann BK, Wenzel D. Visualization of endothelial cell cycle dynamics in mouse using the Flt-1/eGFP-anillin system. Angiogenesis 2018; 21:349-361. [DOI: 10.1007/s10456-018-9601-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2017] [Accepted: 01/28/2018] [Indexed: 11/28/2022]
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17
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Epithelial cell integrin β1 is required for developmental angiogenesis in the pituitary gland. Proc Natl Acad Sci U S A 2016; 113:13408-13413. [PMID: 27810956 DOI: 10.1073/pnas.1614970113] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
As a key component of the vertebrate neuroendocrine system, the pituitary gland relies on the progressive and coordinated development of distinct hormone-producing cell types and an invading vascular network. The molecular mechanisms that drive formation of the pituitary vasculature, which is necessary for regulated synthesis and secretion of hormones that maintain homeostasis, metabolism, and endocrine function, remain poorly understood. Here, we report that expression of integrin β1 in embryonic pituitary epithelial cells is required for angiogenesis in the developing mouse pituitary gland. Deletion of pituitary epithelial integrin β1 before the onset of angiogenesis resulted in failure of invading endothelial cells to recruit pericytes efficiently, whereas deletion later in embryogenesis led to decreased vascular density and lumen formation. In both cases, lack of epithelial integrin β1 was associated with a complete absence of vasculature in the pituitary gland at birth. Within pituitary epithelial cells, integrin β1 directs a large transcriptional program that includes components of the extracellular matrix and associated signaling factors that are linked to the observed non-cell-autonomous effects on angiogenesis. We conclude that epithelial integrin β1 functions as a critical and canonical regulator of developmental angiogenesis in the pituitary gland, thus providing insight into the long-standing systems biology conundrum of how vascular invasion is coordinated with tissue development.
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18
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Vosen S, Rieck S, Heidsieck A, Mykhaylyk O, Zimmermann K, Plank C, Gleich B, Pfeifer A, Fleischmann BK, Wenzel D. Improvement of vascular function by magnetic nanoparticle-assisted circumferential gene transfer into the native endothelium. J Control Release 2016; 241:164-173. [PMID: 27667178 DOI: 10.1016/j.jconrel.2016.09.024] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 09/20/2016] [Accepted: 09/21/2016] [Indexed: 12/22/2022]
Abstract
Gene therapy is a promising approach for chronic disorders that require continuous treatment such as cardiovascular disease. Overexpression of vasoprotective genes has generated encouraging results in animal models, but not in clinical trials. One major problem in humans is the delivery of sufficient amounts of genetic vectors to the endothelium which is impeded by blood flow, whereas prolonged stop-flow conditions impose the risk of ischemia. In the current study we have therefore developed a strategy for the efficient circumferential lentiviral gene transfer in the native endothelium under constant flow conditions. For that purpose we perfused vessels that were exposed to specially designed magnetic fields with complexes of lentivirus and magnetic nanoparticles thereby enabling overexpression of therapeutic genes such as endothelial nitric oxide synthase (eNOS) and vascular endothelial growth factor (VEGF). This treatment enhanced NO and VEGF production in the transduced endothelium and resulted in a reduction of vascular tone and increased angiogenesis. Thus, the combination of MNPs with magnetic fields is an innovative strategy for site-specific and efficient vascular gene therapy.
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Affiliation(s)
- Sarah Vosen
- Institute of Physiology I, Life & Brain Center, University Clinic of Bonn, Germany
| | - Sarah Rieck
- Institute of Physiology I, Life & Brain Center, University Clinic of Bonn, Germany
| | | | - Olga Mykhaylyk
- Institute of Experimental Oncology and Therapy Research, TU München, Germany
| | - Katrin Zimmermann
- Institute of Pharmacology and Toxicology, University Clinic of Bonn, Germany
| | - Christian Plank
- Institute of Experimental Oncology and Therapy Research, TU München, Germany
| | - Bernhard Gleich
- Zentralinstitut für Medizintechnik (IMETUM), TU München, Germany
| | - Alexander Pfeifer
- Institute of Pharmacology and Toxicology, University Clinic of Bonn, Germany
| | - Bernd K Fleischmann
- Institute of Physiology I, Life & Brain Center, University Clinic of Bonn, Germany
| | - Daniela Wenzel
- Institute of Physiology I, Life & Brain Center, University Clinic of Bonn, Germany.
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19
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Liu H, Gong X, Jing X, Ding X, Yao Y, Huang Y, Fan Y. Shear stress with appropriate time-step and amplification enhances endothelial cell retention on vascular grafts. J Tissue Eng Regen Med 2016; 11:2965-2978. [DOI: 10.1002/term.2196] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Revised: 02/09/2016] [Accepted: 03/14/2016] [Indexed: 01/08/2023]
Affiliation(s)
- Haifeng Liu
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering; Beihang University; Beijing People's Republic of China
| | - Xianghui Gong
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering; Beihang University; Beijing People's Republic of China
| | - Xiaohui Jing
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering; Beihang University; Beijing People's Republic of China
| | - Xili Ding
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering; Beihang University; Beijing People's Republic of China
| | - Yuan Yao
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering; Beihang University; Beijing People's Republic of China
| | - Yan Huang
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering; Beihang University; Beijing People's Republic of China
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering; Beihang University; Beijing People's Republic of China
- National Research Centre for Rehabilitation Technical Aids; Beijing People's Republic of China
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20
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Knipper JA, Willenborg S, Brinckmann J, Bloch W, Maaß T, Wagener R, Krieg T, Sutherland T, Munitz A, Rothenberg ME, Niehoff A, Richardson R, Hammerschmidt M, Allen JE, Eming SA. Interleukin-4 Receptor α Signaling in Myeloid Cells Controls Collagen Fibril Assembly in Skin Repair. Immunity 2015; 43:803-16. [PMID: 26474656 PMCID: PMC4681399 DOI: 10.1016/j.immuni.2015.09.005] [Citation(s) in RCA: 231] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Revised: 02/11/2015] [Accepted: 09/17/2015] [Indexed: 10/22/2022]
Abstract
Activation of the immune response during injury is a critical early event that determines whether the outcome of tissue restoration is regeneration or replacement of the damaged tissue with a scar. The mechanisms by which immune signals control these fundamentally different regenerative pathways are largely unknown. We have demonstrated that, during skin repair in mice, interleukin-4 receptor α (IL-4Rα)-dependent macrophage activation controlled collagen fibril assembly and that this process was important for effective repair while having adverse pro-fibrotic effects. We identified Relm-α as one important player in the pathway from IL-4Rα signaling in macrophages to the induction of lysyl hydroxylase 2 (LH2), an enzyme that directs persistent pro-fibrotic collagen cross-links, in fibroblasts. Notably, Relm-β induced LH2 in human fibroblasts, and expression of both factors was increased in lipodermatosclerosis, a condition of excessive human skin fibrosis. Collectively, our findings provide mechanistic insights into the link between type 2 immunity and initiation of pro-fibrotic pathways.
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Affiliation(s)
- Johanna A Knipper
- Department of Dermatology, University of Cologne, 50937 Cologne, Germany
| | | | - Jürgen Brinckmann
- Department of Dermatology and Institute of Virology and Cell Biology, University of Lübeck, 23562 Lübeck, Germany
| | - Wilhelm Bloch
- Department of Molecular and Cellular Sport Medicine, German Sport University Cologne, 50933 Cologne, Germany
| | - Tobias Maaß
- Department of Biochemistry, University of Cologne, 50937 Cologne, Germany
| | - Raimund Wagener
- Department of Biochemistry, University of Cologne, 50937 Cologne, Germany
| | - Thomas Krieg
- Department of Dermatology, University of Cologne, 50937 Cologne, Germany; Center for Molecular Medicine Cologne, University of Cologne, 50931 Cologne, Germany; Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, 50674 Cologne, Germany
| | - Tara Sutherland
- Institute of Immunology and Infection Research, Centre for Immunity, Infection & Evolution, School of Biological Sciences, University of Edinburgh, EH9 3FL Edinburgh, UK
| | - Ariel Munitz
- Department of Clinical Microbiology and Immunology, The Sackler School of Medicine, The Tel-Aviv University, Ramat Aviv 69978, Israel
| | - Marc E Rothenberg
- Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH 45229-3039, USA
| | - Anja Niehoff
- Institute of Biomechanics & Orthopedics, German Sport University Cologne, 50933 Cologne, Germany; Cologne Center for Musculoskeletal Biomechanics, University of Cologne, 50931 Cologne, Germany
| | - Rebecca Richardson
- Institute of Developmental Biology, University of Cologne, 50674 Cologne, Germany
| | - Matthias Hammerschmidt
- Center for Molecular Medicine Cologne, University of Cologne, 50931 Cologne, Germany; Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, 50674 Cologne, Germany; Institute of Developmental Biology, University of Cologne, 50674 Cologne, Germany
| | - Judith E Allen
- Institute of Immunology and Infection Research, Centre for Immunity, Infection & Evolution, School of Biological Sciences, University of Edinburgh, EH9 3FL Edinburgh, UK
| | - Sabine A Eming
- Department of Dermatology, University of Cologne, 50937 Cologne, Germany; Center for Molecular Medicine Cologne, University of Cologne, 50931 Cologne, Germany; Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases, University of Cologne, 50674 Cologne, Germany.
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21
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Fraccaroli A, Pitter B, Taha AA, Seebach J, Huveneers S, Kirsch J, Casaroli-Marano RP, Zahler S, Pohl U, Gerhardt H, Schnittler HJ, Montanez E. Endothelial alpha-parvin controls integrity of developing vasculature and is required for maintenance of cell-cell junctions. Circ Res 2015; 117:29-40. [PMID: 25925587 PMCID: PMC4470528 DOI: 10.1161/circresaha.117.305818] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Accepted: 04/29/2015] [Indexed: 02/01/2023]
Abstract
Supplemental Digital Content is available in the text. Rationale: Angiogenesis and vessel integrity depend on the adhesion of endothelial cells (ECs) to the extracellular matrix and to adjacent ECs. The focal adhesion protein α-parvin (α-pv) is essential for vascular development. However, the role of α-pv in ECs in vivo is not known. Objective: To determine the function of α-pv in ECs during vascular development in vivo and the underlying mechanisms. Methods and Results: We deleted the α-pv gene specifically in ECs of mice to study its role in angiogenesis and vascular development. Here, we show that endothelial-specific deletion of α-pv in mice results in late embryonic lethality associated with hemorrhages and reduced vascular density. Postnatal-induced EC-specific deletion of α-pv leads to retinal hypovascularization because of reduced vessel sprouting and excessive vessel regression. In the absence of α-pv, blood vessels display impaired VE-cadherin junction morphology. In vitro, α-pv–deficient ECs show reduced stable adherens junctions, decreased monolayer formation, and impaired motility, associated with reduced formation of integrin-mediated cell–extracellular matrix adhesion structures and an altered actin cytoskeleton. Conclusions: Endothelial α-pv is essential for vessel sprouting and for vessel stability.
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Affiliation(s)
- Alessia Fraccaroli
- From the Walter-Brendel-Centre of Experimental Medicine (A.F., B.P., J.K., U.P., E.M.) and Department of Pharmacy (S.Z.), Ludwig-Maximilians University Munich, Munich, Germany; Institute of Anatomy and Vascular Biology, WWU-Münster, Münster, Germany (A.A.T., J.S., H.-J.S.); Department of Molecular Cell Biology, Sanquin Research and Landsteiner Laboratory, Swammerdam Institute for Life Sciences, Amsterdam, The Netherlands (S.H.); Department of Surgery, School of Medicine and Hospital Clinic de Barcelona (IDIBAPS), University of Barcelona, Barcelona, Spain (R.P.C.-M.); and Vascular Biology Laboratory, London Research Institute-Cancer Research United Kingdom, London, United Kingdom (H.G.)
| | - Bettina Pitter
- From the Walter-Brendel-Centre of Experimental Medicine (A.F., B.P., J.K., U.P., E.M.) and Department of Pharmacy (S.Z.), Ludwig-Maximilians University Munich, Munich, Germany; Institute of Anatomy and Vascular Biology, WWU-Münster, Münster, Germany (A.A.T., J.S., H.-J.S.); Department of Molecular Cell Biology, Sanquin Research and Landsteiner Laboratory, Swammerdam Institute for Life Sciences, Amsterdam, The Netherlands (S.H.); Department of Surgery, School of Medicine and Hospital Clinic de Barcelona (IDIBAPS), University of Barcelona, Barcelona, Spain (R.P.C.-M.); and Vascular Biology Laboratory, London Research Institute-Cancer Research United Kingdom, London, United Kingdom (H.G.)
| | - Abdallah Abu Taha
- From the Walter-Brendel-Centre of Experimental Medicine (A.F., B.P., J.K., U.P., E.M.) and Department of Pharmacy (S.Z.), Ludwig-Maximilians University Munich, Munich, Germany; Institute of Anatomy and Vascular Biology, WWU-Münster, Münster, Germany (A.A.T., J.S., H.-J.S.); Department of Molecular Cell Biology, Sanquin Research and Landsteiner Laboratory, Swammerdam Institute for Life Sciences, Amsterdam, The Netherlands (S.H.); Department of Surgery, School of Medicine and Hospital Clinic de Barcelona (IDIBAPS), University of Barcelona, Barcelona, Spain (R.P.C.-M.); and Vascular Biology Laboratory, London Research Institute-Cancer Research United Kingdom, London, United Kingdom (H.G.)
| | - Jochen Seebach
- From the Walter-Brendel-Centre of Experimental Medicine (A.F., B.P., J.K., U.P., E.M.) and Department of Pharmacy (S.Z.), Ludwig-Maximilians University Munich, Munich, Germany; Institute of Anatomy and Vascular Biology, WWU-Münster, Münster, Germany (A.A.T., J.S., H.-J.S.); Department of Molecular Cell Biology, Sanquin Research and Landsteiner Laboratory, Swammerdam Institute for Life Sciences, Amsterdam, The Netherlands (S.H.); Department of Surgery, School of Medicine and Hospital Clinic de Barcelona (IDIBAPS), University of Barcelona, Barcelona, Spain (R.P.C.-M.); and Vascular Biology Laboratory, London Research Institute-Cancer Research United Kingdom, London, United Kingdom (H.G.)
| | - Stephan Huveneers
- From the Walter-Brendel-Centre of Experimental Medicine (A.F., B.P., J.K., U.P., E.M.) and Department of Pharmacy (S.Z.), Ludwig-Maximilians University Munich, Munich, Germany; Institute of Anatomy and Vascular Biology, WWU-Münster, Münster, Germany (A.A.T., J.S., H.-J.S.); Department of Molecular Cell Biology, Sanquin Research and Landsteiner Laboratory, Swammerdam Institute for Life Sciences, Amsterdam, The Netherlands (S.H.); Department of Surgery, School of Medicine and Hospital Clinic de Barcelona (IDIBAPS), University of Barcelona, Barcelona, Spain (R.P.C.-M.); and Vascular Biology Laboratory, London Research Institute-Cancer Research United Kingdom, London, United Kingdom (H.G.)
| | - Julian Kirsch
- From the Walter-Brendel-Centre of Experimental Medicine (A.F., B.P., J.K., U.P., E.M.) and Department of Pharmacy (S.Z.), Ludwig-Maximilians University Munich, Munich, Germany; Institute of Anatomy and Vascular Biology, WWU-Münster, Münster, Germany (A.A.T., J.S., H.-J.S.); Department of Molecular Cell Biology, Sanquin Research and Landsteiner Laboratory, Swammerdam Institute for Life Sciences, Amsterdam, The Netherlands (S.H.); Department of Surgery, School of Medicine and Hospital Clinic de Barcelona (IDIBAPS), University of Barcelona, Barcelona, Spain (R.P.C.-M.); and Vascular Biology Laboratory, London Research Institute-Cancer Research United Kingdom, London, United Kingdom (H.G.)
| | - Ricardo P Casaroli-Marano
- From the Walter-Brendel-Centre of Experimental Medicine (A.F., B.P., J.K., U.P., E.M.) and Department of Pharmacy (S.Z.), Ludwig-Maximilians University Munich, Munich, Germany; Institute of Anatomy and Vascular Biology, WWU-Münster, Münster, Germany (A.A.T., J.S., H.-J.S.); Department of Molecular Cell Biology, Sanquin Research and Landsteiner Laboratory, Swammerdam Institute for Life Sciences, Amsterdam, The Netherlands (S.H.); Department of Surgery, School of Medicine and Hospital Clinic de Barcelona (IDIBAPS), University of Barcelona, Barcelona, Spain (R.P.C.-M.); and Vascular Biology Laboratory, London Research Institute-Cancer Research United Kingdom, London, United Kingdom (H.G.)
| | - Stefan Zahler
- From the Walter-Brendel-Centre of Experimental Medicine (A.F., B.P., J.K., U.P., E.M.) and Department of Pharmacy (S.Z.), Ludwig-Maximilians University Munich, Munich, Germany; Institute of Anatomy and Vascular Biology, WWU-Münster, Münster, Germany (A.A.T., J.S., H.-J.S.); Department of Molecular Cell Biology, Sanquin Research and Landsteiner Laboratory, Swammerdam Institute for Life Sciences, Amsterdam, The Netherlands (S.H.); Department of Surgery, School of Medicine and Hospital Clinic de Barcelona (IDIBAPS), University of Barcelona, Barcelona, Spain (R.P.C.-M.); and Vascular Biology Laboratory, London Research Institute-Cancer Research United Kingdom, London, United Kingdom (H.G.)
| | - Ulrich Pohl
- From the Walter-Brendel-Centre of Experimental Medicine (A.F., B.P., J.K., U.P., E.M.) and Department of Pharmacy (S.Z.), Ludwig-Maximilians University Munich, Munich, Germany; Institute of Anatomy and Vascular Biology, WWU-Münster, Münster, Germany (A.A.T., J.S., H.-J.S.); Department of Molecular Cell Biology, Sanquin Research and Landsteiner Laboratory, Swammerdam Institute for Life Sciences, Amsterdam, The Netherlands (S.H.); Department of Surgery, School of Medicine and Hospital Clinic de Barcelona (IDIBAPS), University of Barcelona, Barcelona, Spain (R.P.C.-M.); and Vascular Biology Laboratory, London Research Institute-Cancer Research United Kingdom, London, United Kingdom (H.G.)
| | - Holger Gerhardt
- From the Walter-Brendel-Centre of Experimental Medicine (A.F., B.P., J.K., U.P., E.M.) and Department of Pharmacy (S.Z.), Ludwig-Maximilians University Munich, Munich, Germany; Institute of Anatomy and Vascular Biology, WWU-Münster, Münster, Germany (A.A.T., J.S., H.-J.S.); Department of Molecular Cell Biology, Sanquin Research and Landsteiner Laboratory, Swammerdam Institute for Life Sciences, Amsterdam, The Netherlands (S.H.); Department of Surgery, School of Medicine and Hospital Clinic de Barcelona (IDIBAPS), University of Barcelona, Barcelona, Spain (R.P.C.-M.); and Vascular Biology Laboratory, London Research Institute-Cancer Research United Kingdom, London, United Kingdom (H.G.)
| | - Hans-J Schnittler
- From the Walter-Brendel-Centre of Experimental Medicine (A.F., B.P., J.K., U.P., E.M.) and Department of Pharmacy (S.Z.), Ludwig-Maximilians University Munich, Munich, Germany; Institute of Anatomy and Vascular Biology, WWU-Münster, Münster, Germany (A.A.T., J.S., H.-J.S.); Department of Molecular Cell Biology, Sanquin Research and Landsteiner Laboratory, Swammerdam Institute for Life Sciences, Amsterdam, The Netherlands (S.H.); Department of Surgery, School of Medicine and Hospital Clinic de Barcelona (IDIBAPS), University of Barcelona, Barcelona, Spain (R.P.C.-M.); and Vascular Biology Laboratory, London Research Institute-Cancer Research United Kingdom, London, United Kingdom (H.G.)
| | - Eloi Montanez
- From the Walter-Brendel-Centre of Experimental Medicine (A.F., B.P., J.K., U.P., E.M.) and Department of Pharmacy (S.Z.), Ludwig-Maximilians University Munich, Munich, Germany; Institute of Anatomy and Vascular Biology, WWU-Münster, Münster, Germany (A.A.T., J.S., H.-J.S.); Department of Molecular Cell Biology, Sanquin Research and Landsteiner Laboratory, Swammerdam Institute for Life Sciences, Amsterdam, The Netherlands (S.H.); Department of Surgery, School of Medicine and Hospital Clinic de Barcelona (IDIBAPS), University of Barcelona, Barcelona, Spain (R.P.C.-M.); and Vascular Biology Laboratory, London Research Institute-Cancer Research United Kingdom, London, United Kingdom (H.G.).
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Beltran-Povea A, Caballano-Infantes E, Salguero-Aranda C, Martín F, Soria B, Bedoya FJ, Tejedo JR, Cahuana GM. Role of nitric oxide in the maintenance of pluripotency and regulation of the hypoxia response in stem cells. World J Stem Cells 2015; 7:605-617. [PMID: 25914767 PMCID: PMC4404395 DOI: 10.4252/wjsc.v7.i3.605] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Revised: 11/13/2014] [Accepted: 12/17/2014] [Indexed: 02/06/2023] Open
Abstract
Stem cell pluripotency and differentiation are global processes regulated by several pathways that have been studied intensively over recent years. Nitric oxide (NO) is an important molecule that affects gene expression at the level of transcription and translation and regulates cell survival and proliferation in diverse cell types. In embryonic stem cells NO has a dual role, controlling differentiation and survival, but the molecular mechanisms by which it modulates these functions are not completely defined. NO is a physiological regulator of cell respiration through the inhibition of cytochrome c oxidase. Many researchers have been examining the role that NO plays in other aspects of metabolism such as the cellular bioenergetics state, the hypoxia response and the relationship of these areas to stem cell stemness.
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Kim JE, Lee JM, Chung BG. Microwell arrays for uniform-sized embryoid body-mediated endothelial cell differentiation. Biomed Microdevices 2015; 16:559-66. [PMID: 24652615 DOI: 10.1007/s10544-014-9858-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Embryonic stem (ES) cell is of great interest cell source in regenerating tissue constructs. We hypothesized that the interaction of cell-extracellular matrices (ECMs) would enable the control of ES cell differentiation pathway. We fabricated the hydrogel microwell array system to regulate uniform-sized embryoid bodies (EBs) and replate into various ECM components (e.g., gelatin, collagen I, fibronectin, laminin, and Matrigel). We demonstrated that collagen I and laminin largely induced ES cell-derived endothelial cell differentiation compared to gelatin. We also characterized ECMs-dependent endothelial cell differentiation by evaluating the endothelial gene expression, showing that Flk1 endothelial gene was highly expressed on collagen I. We also demonstrated the effect of the integrin on uniform-sized EBs-derived endothelial cell differentiation, showing that integrin α1 was largely expressed on laminin. Therefore, the cell-ECM interaction could be potentially powerful for controlling the uniform-sized EBs-derived endothelial cell differentiation.
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Affiliation(s)
- Ji-eun Kim
- Department of Bionano Technology, Hanyang University, Ansan, Korea
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Welschoff J, Matthey M, Wenzel D. RGD peptides induce relaxation of pulmonary arteries and airways
via
β3‐integrins. FASEB J 2014; 28:2281-92. [DOI: 10.1096/fj.13-246348] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Ke C, Jin H, Cai J. AFM studied the effect of celastrol on β1 integrin-mediated HUVEC adhesion and migration. SCANNING 2013; 35:316-326. [PMID: 23239560 DOI: 10.1002/sca.21070] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Revised: 11/13/2012] [Accepted: 11/14/2012] [Indexed: 06/01/2023]
Abstract
Integrin-mediated human umbilical vein endothelial cells (HUVECs) adhesion to the extracellular matrix plays a fundamental role in tumor-induced angiogenesis. Celastrol, a traditional Chinese medicine plant, has possessed anticancer and suppressed angiogenesis activities. Here, the mechanism underling the antiangiogenesis capacity of celastrol was investigated by exploring the effect of celastrol on β1(CD29) integrin-mediated cell adhesion and migration. Flow cytometry results showed that the HUVECs highly expressed CD29 and cell adhesion assay indicated that celastrol specifically inhibited the adhesion of HUVECs to fibronectin (FN) without affecting nonspecific adhesion to poly-L-lysine (PLL). After cell FN adhesion being inhibited, the cell surface nanoscale structure and adhesion force were detected by atomic force microscope (AFM). High-resolution imaging revealed that cell morphology and ultrastructure changed a lot after being treated with celastrol. The membrane average roughness (Ra) and the major forces were decreased from 31.34 ± 4.56 nm, 519.60 ± 82.86 pN of 0 μg/ml celastrol to 18.47 ± 6.53 nm, 417.79 ± 53.35 pN of 4.0 μg/ml celastrol, 10.54 ± 2.85 nm, 258.95 ± 38.98 pN of 8.0 μg/ml celastrol, respectively. Accompanying with the decrease of adhesion force, the actin cytoskeleton in the cells was obviously disturbed by the celastrol. All of these changes influenced the migration of HUVECs from the wound-healing migration assay. Taken together, our results suggest that celastrol can be as an inhibitor of HUVEC adhesion to FN. This work provides a novel approach to inhibition of tumor angiogenesis and tumor growth.
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Affiliation(s)
- Changhong Ke
- Department of Chemistry, College of Life Science and Technology, Jinan University, Guangzhou, China
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26
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Malan D, Elischer A, Hesse M, Wickström SA, Fleischmann BK, Bloch W. Deletion of integrin linked kinase in endothelial cells results in defective RTK signaling caused by caveolin 1 mislocalization. Development 2013; 140:987-95. [PMID: 23404105 DOI: 10.1242/dev.091298] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Integrin linked kinase (ILK) connects the ILK-Pinch-Parvin complex with integrin adhesion sites. Because of the functional relevance of integrin-linked signaling for endothelial cell (EC) biology, we have explored this pathway in Ilk(-/-) embryonic stem (ES) cells differentiated into ECs and vessel-like structures. We have focused in particular on the mechanistic relevance of ILK-Pinch-Parvin complex-related signaling for EC development and tube formation. Our analysis revealed that the formation of vessel-like structures was strongly reduced in Ilk(-/-) ES cells and that this phenotype could be rescued by re-expression of ILK in ES cells. ECs were MACS sorted from wild-type (WT) and Ilk(-/-) ES cells and functional analysis using intracellular calcium imaging as the read-out yielded a complete lack of vascular endothelial growth factor- and epidermal growth factor-dependent responses. The possibility of a caveolin 1-related defect was investigated by transfecting WT and Ilk(-/-) ECs with a caveolin 1-EGFP fusion protein. Time-lapse microscopy showed that the prominent phenotype is due to altered dynamics of caveolin 1 and to a lack of positioning of caveolin 1 in the vicinity of the plasma membrane and that it is rescued by re-expressing ILK in the Ilk(-/-) ES cells. We also found that the defect is caused by the perturbed organization of microtubules and cortical actin filaments. Thus, ILK is required as a scaffold to allow actin-microtubule interactions and correct positioning of caveolin 1 close to the plasma membrane. This is crucial for signaling compartmentalization in ECs and explains the key role of ILK for EC development and function.
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Affiliation(s)
- Daniela Malan
- Institute of Physiology I, Life and Brain Center, University of Bonn, Bonn, NRW, 53105, Germany
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Abstract
PURPOSE OF REVIEW In the current review, we summarize recent progress on vasculature-specific function and regulation of integrins and integrin-associated proteins, including advances in our understanding of inside-out integrin activation. The studies on regulation of integrin activation received new impulse in 2009 with the identification of kindlin protein family members as crucial mediators of integrin inside-out signaling. In the current review, we outline the recent findings on the role of kindlins in the vascular system, as well as new studies that have begun shaping the mechanistic model of kindlins' function. RECENT FINDINGS Several tissue-specific knockout models for integrins and genes associated with the integrin functions have been recently presented, including smooth muscle-specific integrin-linked kinase and endothelial-specific focal adhesion kinase and talin-1 ablation. In the heterozygous animal knockout model, kindlin-2 has been demonstrated as a crucial modulator of angiogenesis and vascular permeability. As a number of articles have advanced our understanding of kindlin function, they are reviewed and discussed in further detail. New findings include an additional lipid-binding site within the kindlin molecule and preferential binding of the nonphosphorylated form of β-integrins. SUMMARY The role of integrins in angiogenesis has been demonstrated to include, in addition to cell adhesion and mechanotransduction, specific signaling functions. The importance of integrin inside-out pathway in vascular physiology has been unequivocally proven, and endothelial permeability is directly regulated by this process. Inhibition of kindlin-dependent steps in the inside-out pathway as an approach to block platelet aggregation should be paralog-specific, as it may have adverse effects on vascular permeability.
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Abstract
PURPOSE OF REVIEW This review offers a concise summary of the most recent experimental advances in vascular development using the mouse as a model organism. RECENT FINDINGS Recent mouse studies have revealed a spread of phenotypic diversity between endothelia of distinct developmental origins and organs. For example, expression of unique transcription factors distinguishes hemogenic from nonhemogenic endothelium within the same vessel. Vasculature of the brain is particularly susceptible to endothelial malformations due to combinatorial germline and somatic mutations; surprisingly these mutations can afflict the endothelium by either cell autonomous or paracrine effects. Mutant mice have been used to understand how multiple signaling pathways integrate and refine cellular responses. In particular, we learned how VEGFR3 regulates Notch signaling and EphrinB2 coordinates VEGFR2 responses. The regulation of Prox1 by miR181 highlighted the contribution of microRNAs in the induction of lymphatic endothelium. Information gained on heterotypic interactions has further clarified the influence of blood vessels on the morphogenesis of parenchyma and contributed to our understanding of organ-specific endothelial differentiation. Finally, mouse models have uncovered endothelial cell polarity as a keystone for successful vascular lumenization. SUMMARY Our understanding of the process of vascular development has gained significant refinement in the last two years and has clarified the origin of several disorders rooted in development.
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Zheng Y, Qiu J, Hu J, Wang G. Concepts and hypothesis: integrin cytoplasmic domain-associated protein-1 (ICAP-1) as a potential player in cerebral cavernous malformation. J Neurol 2012; 260:10-9. [DOI: 10.1007/s00415-012-6567-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2012] [Revised: 05/18/2012] [Accepted: 05/18/2012] [Indexed: 11/28/2022]
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Herz K, Heinemann JC, Hesse M, Ottersbach A, Geisen C, Fuegemann CJ, Röll W, Fleischmann BK, Wenzel D. Live monitoring of small vessels during development and disease using the flt-1 promoter element. Basic Res Cardiol 2012; 107:257. [PMID: 22382299 DOI: 10.1007/s00395-012-0257-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2011] [Revised: 02/16/2012] [Accepted: 02/22/2012] [Indexed: 12/23/2022]
Abstract
Vessel formation is of critical importance for organ function in the normal and diseased state. In particular, the labeling and quantitation of small vessels prove to be technically challenging using current approaches. We have, therefore, established a transgenic embryonic stem (ES) cell line and a transgenic mouse model where the vascular endothelial growth factor receptor VEGFR-1 (flt-1) promoter drives the expression of the live reporter eGFP. Fluorescence microscopy and immunostainings revealed endothelial-specific eGFP labeling of vascular networks. The expression pattern recapitulates that of the endogenous flt-1 gene, because small and large vessels are labeled by eGFP during embryonic development; after birth, the expression becomes more restricted to small vessels. We have explored this in the cardiovascular system more in detail and found that all small vessels and capillaries within the heart are strongly eGFP+. In addition, myocardial injuries have been induced in transgenic mice and prominent vascular remodeling, and an increase in endothelial cell area within the peri-infarct area could be observed underscoring the utility of this mouse model. Thus, the transgenic flt-1/eGFP models are powerful tools to investigate and quantify vascularization in vivo and to probe the effect of different compounds on vessel formation in vitro.
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Affiliation(s)
- Katia Herz
- Institute of Physiology I, University of Bonn, Sigmund-Freud-Str. 25, 53127, Bonn, Germany
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Abstract
Accumulating evidence indicates that the mobilization and recruitment of circulating or tissue-resident progenitor cells that give rise to endothelial cells (ECs) and smooth muscle cells (SMCs) can participate in atherosclerosis, neointima hyperplasia after arterial injury, and transplant arteriosclerosis. It is believed that endothelial progenitor cells do exist and can repair and rejuvenate the arteries under physiologic conditions; however, they may also contribute to lesion formation by influencing plaque stability in advanced atherosclerotic plaque under specific pathologic conditions. At the same time, smooth muscle progenitors, despite their capacity to expedite lesion formation during restenosis, may serve to promote atherosclerotic plaque stabilization by producing extracellular matrix proteins. This profound evidence provides support to the hypothesis that both endothelial and smooth muscle progenitors may act as a double-edged sword in the pathogenesis of arteriosclerosis. Therefore, the understanding of the regulatory networks that control endothelial and smooth muscle progenitor differentiation is undoubtedly fundamental both for basic research and for improving current therapeutic avenues for atherosclerosis. We update the progress in progenitor cell study related to the development of arteriosclerosis, focusing specifically on the role of progenitor cells in lesion formation and discuss the controversial issues that regard the origins, frequency, and impact of the progenitors in the disease.
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Affiliation(s)
- Paola Campagnolo
- Cardiovascular Division, King's College London BHF Centre, London, England
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Castillo-Briceño P, Cabas I, Arizcun M, Meseguer J, Mulero V, García-Ayala A. Identification of a β1 integrin isoform with restricted tissue expression in a teleost fish. Reprod Fertil Dev 2011; 23:654-64. [DOI: 10.1071/rd10351] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2010] [Accepted: 01/12/2011] [Indexed: 11/23/2022] Open
Abstract
The composition and organisation of extracellular matrix (ECM)-related molecules change during development. These components interact with different cell surface receptors to modulate the transduction of signals for cell growth, differentiation, migration, proliferation and apoptosis. Previous findings in the teleost fish gilthead seabream (Sparus aurata L., Teleostei), a marine protandrous hermaphrodite fish, showed that endocrine and immune stimuli are able to modulate the expression of ECM-related molecules, as well as specific correlations between them. In the present study, quantitative reverse transcription–polymerase chain reaction was used to examine the gene expression profile of β1 integrin isoform b (ITGB1b) and its possible role in reproductive physiology, especially in relation to spermatogenesis. Expression profiles were analysed in the context of the reproductive cycle (RC) and in relation with other ECM-related molecules, including matrix metalloproteinase (MMP)-2, MMP-9, MMP-13, tissue-specific inhibitor of metalloproteinase (TIMP)-2a, TIMP-2b, collagen (COL1A1) and ITGB1a. Expression of ITGB1b was found in the testis and brain and, to some extent, in endothelial cells. In contrast, ITGB1a was expressed ubiquitously. In the testis, the ITGB1b expression peaked during spermatogenesis, whereas the expression of the other ECM-related molecules is induced mainly during the post-spawning stage, both stages of marked tissue remodelling during the first and second RC in males. In addition, in fish exposed to the endocrine disruptor 17α-ethynyloestradiol (at 5 and 50 μg g–1 food during 7, 14 and 21 days), ITGB1b expression in the testis was inhibited in a dose- and time-dependent manner and was related to reduced serum levels of testosterone. Together, these results suggest a different functionality for the two ITGB1 isoforms in the gilthead seabream, where ITGB1b is more specifically involved in reproduction. This is the first report of an ITGB1 gene isoform whose expression is restricted to endocrine-related tissues in vertebrates.
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Malan D, Wenzel D, Schmidt A, Geisen C, Raible A, Bölck B, Fleischmann BK, Bloch W. Endothelial β1 integrins regulate sprouting and network formation during vascular development. J Cell Sci 2010. [DOI: 10.1242/jcs.069815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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