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Lv J, Wang J, Zeng Y, Tian S, Wang F, Zhai Y, Zhou Q, Luo X, Zhang X, Liu B, Zhou C. In vitro chemical treatment of silk increases the expression of pro-inflammatory factors and facilitates degradation in rats. J Appl Biomater Funct Mater 2024; 22:22808000231222704. [PMID: 38217423 DOI: 10.1177/22808000231222704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2024] Open
Abstract
OBJECTIVES Silk fiber is difficult to degrade in vivo, which limits its application in tissue engineering materials such as artificial nerves. Therefore, in this study aim to promote its degradation in vivo by chemical treating silk fibers in vitro. MATERIALS AND METHODS Sulfate-polyacrylamide gel electrophoresis (SDS-PAGE), scanning electron microscopy (SEM) observations, mechanical test, Fourier transform infrared spectroscopy (FT-IR) measurements were used to investigate the degradation effect of chemicals (hydrochloric acid, phosphoric acid, acetic acid, sodium hydroxide, calcium hydroxide, sodium bicarbonate, and calcium chloride) on silk fiber in vitro. Immunofluorescence staining and transcriptome analysis were used to investigate the effect of inflammatory factors on the degradation of chemically treated silk fiber in rats. RESULTS (1) Silks were separated into finer fibers in each group. (2) FT-IR absorption peaks of amides I, II, and III overlap in each group. (3) Silk degradation degree in each group was higher than that in an untreated group. The calcium chloride-treated group was completely degraded. (4) Fibronectin, collagen I, collagen III, integrin α and CD68 were immunofluorescence positive in all vegetation section. (5) There were no significant differences in the expressions of collagen I, collagen III, and fibronectin in the vegetations formed on the 14th day of subcutaneous implantation, while integrin α, CD68, TNF-α, IL-1b, and IL-23 express at higher levels with IL-10 at lower levels. CONCLUSIONS All chemicals could completely degrade silk; however, their degradation products were not the same. The chemicals change the mechanical properties of silk by separating it into finer fibers, which increase the contact surface area between the silk and tissue fluid, accelerating the degradation of monofilaments in vivo by promoting inflammation and macrophage activity through the increased and decreased expressions of pro- and anti-inflammatory factors, respectively.
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Affiliation(s)
- Jinfeng Lv
- Institute for Silk and Related Biomaterials Research, Chongqing Academy of Animal Sciences, Chongqing, China
| | - Jieping Wang
- Institute for Silk and Related Biomaterials Research, Chongqing Academy of Animal Sciences, Chongqing, China
| | - Yao Zeng
- Institute for Silk and Related Biomaterials Research, Chongqing Academy of Animal Sciences, Chongqing, China
| | - Simeng Tian
- School of Life Sciences, Southwest University, Chongqing, China
| | - Fei Wang
- School of Life Sciences, Southwest University, Chongqing, China
| | - Yixue Zhai
- School of Life Sciences, Southwest University, Chongqing, China
| | - Qian Zhou
- School of Life Sciences, Southwest University, Chongqing, China
| | - Xiyue Luo
- School of Life Sciences, Southwest University, Chongqing, China
| | - Xuanjie Zhang
- First Clinical College, Chongqing Medical University, Chongqing, China
| | - Bin Liu
- School of Life Sciences, Southwest University, Chongqing, China
| | - Chan Zhou
- Institute for Silk and Related Biomaterials Research, Chongqing Academy of Animal Sciences, Chongqing, China
- State Key Laboratory of Silkworm Genome Biology, College of Sericulture Textile and Biomass Sciences, Southwest University, Chongqing, China
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St Amant J, Michaud J, Hinds D, Coyle M, Pozzi A, Clark AL. Depleting transforming growth factor beta receptor 2 signalling in the cartilage of itga1-null mice attenuates spontaneous knee osteoarthritis. OSTEOARTHRITIS AND CARTILAGE OPEN 2023; 5:100399. [PMID: 37649532 PMCID: PMC10462827 DOI: 10.1016/j.ocarto.2023.100399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 08/09/2023] [Indexed: 09/01/2023] Open
Abstract
Objectives Integrin α1β1 protects against osteoarthritis (OA) when it is upregulated in the superficial zone of cartilage in the early stages of disease. However, the mechanism behind this protection is unknown. Integrin α1β1 moderates transforming growth factor β receptor II (TGFBR2) signalling, a critical regulator of chondrocyte anabolic activity. To this end, mice lacking integrin α1β1 have increased baseline activation of TGFBR2 signalling and overall fibrosis. The purpose of this study was to evaluate the interplay between integrin α1β1 and TGFBR2 in the development of spontaneous OA. We hypothesized that dampening TGFBR2 signalling in the cartilage of itga1-null mice would attenuate OA. Methods Behavioural and histological manifestations of spontaneous knee OA were measured at 4, 8, 12 and 16 months in mice with and without a ubiquitous itga1 deletion and with and without a tamoxifen-induced cartilage specific TGFBR2 depletion. Results Knee cartilage degeneration, collateral ligament ossification and pain responses increased with age. Itga1-null mice with intact TGFBR2 signalling developed earlier and more severe OA compared to controls. In agreement with our hypothesis, depleting TGFBR2 signalling in the cartilage of itga1-null mice attenuated OA progression. Conclusion Intact TGFBR2 signalling drives early and worse knee OA in itga1-null mice. This result supports the hypothesis that the increased expression of integrin α1β1 by superficial zone chondrocytes early in OA development dampens TGFBR2 signalling and thus protects against degeneration.
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Affiliation(s)
- Jennifer St Amant
- Human Health and Nutritional Sciences, College of Biological Science, University of Guelph, Guelph, ON, Canada
| | - Jana Michaud
- Human Health and Nutritional Sciences, College of Biological Science, University of Guelph, Guelph, ON, Canada
| | - Daniel Hinds
- Human Health and Nutritional Sciences, College of Biological Science, University of Guelph, Guelph, ON, Canada
| | - Madison Coyle
- Human Health and Nutritional Sciences, College of Biological Science, University of Guelph, Guelph, ON, Canada
| | - Ambra Pozzi
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
- Department of Veterans Affairs, Nashville, TN, USA
| | - Andrea L. Clark
- Human Health and Nutritional Sciences, College of Biological Science, University of Guelph, Guelph, ON, Canada
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Gnecco JS, Brown A, Buttrey K, Ives C, Goods BA, Baugh L, Hernandez-Gordillo V, Loring M, Isaacson KB, Griffith LG. Organoid co-culture model of the human endometrium in a fully synthetic extracellular matrix enables the study of epithelial-stromal crosstalk. MED 2023; 4:554-579.e9. [PMID: 37572651 PMCID: PMC10878405 DOI: 10.1016/j.medj.2023.07.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 03/11/2023] [Accepted: 07/11/2023] [Indexed: 08/14/2023]
Abstract
BACKGROUND The human endometrium undergoes recurring cycles of growth, differentiation, and breakdown in response to sex hormones. Dysregulation of epithelial-stromal communication during hormone-mediated signaling may be linked to myriad gynecological disorders for which treatments remain inadequate. Here, we describe a completely defined, synthetic extracellular matrix that enables co-culture of human endometrial epithelial and stromal cells in a manner that captures healthy and disease states across a simulated menstrual cycle. METHODS We parsed cycle-dependent endometrial integrin expression and matrix composition to define candidate cell-matrix interaction cues for inclusion in a polyethylene glycol (PEG)-based hydrogel crosslinked with matrix metalloproteinase-labile peptides. We semi-empirically screened a parameter space of biophysical and molecular features representative of the endometrium to define compositions suitable for hormone-driven expansion and differentiation of epithelial organoids, stromal cells, and co-cultures of the two cell types. FINDINGS Each cell type exhibited characteristic morphological and molecular responses to hormone changes when co-encapsulated in hydrogels tuned to a stiffness regime similar to the native tissue and functionalized with a collagen-derived adhesion peptide (GFOGER) and a fibronectin-derived peptide (PHSRN-K-RGD). Analysis of cell-cell crosstalk during interleukin 1B (IL1B)-induced inflammation revealed dysregulation of epithelial proliferation mediated by stromal cells. CONCLUSIONS Altogether, we demonstrate the development of a fully synthetic matrix to sustain the dynamic changes of the endometrial microenvironment and support its applications to understand menstrual health and endometriotic diseases. FUNDING This work was supported by The John and Karine Begg Foundation, the Manton Foundation, and NIH U01 (EB029132).
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Affiliation(s)
- Juan S Gnecco
- Center for Gynepathology Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA; Department of Biological Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA; Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA
| | - Alexander Brown
- Center for Gynepathology Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA; Department of Biological Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Kira Buttrey
- Department of Biological Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Clara Ives
- Center for Gynepathology Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA; Department of Biological Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Brittany A Goods
- Thayer School of Engineering at Dartmouth College, 15 Thayer Drive, Hanover, NH 03755, USA
| | - Lauren Baugh
- Center for Gynepathology Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA; Department of Biological Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Victor Hernandez-Gordillo
- Department of Biological Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Megan Loring
- Center for Gynepathology Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA; Newton Wellesley Hospital, 2014 Washington Street, Newton, MA 02115, USA
| | - Keith B Isaacson
- Center for Gynepathology Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA; Newton Wellesley Hospital, 2014 Washington Street, Newton, MA 02115, USA
| | - Linda G Griffith
- Center for Gynepathology Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA; Department of Biological Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA.
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Zhang Q, Zhang S, Chen J, Xie Z. The Interplay between Integrins and Immune Cells as a Regulator in Cancer Immunology. Int J Mol Sci 2023; 24:6170. [PMID: 37047140 PMCID: PMC10093897 DOI: 10.3390/ijms24076170] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 03/20/2023] [Accepted: 03/22/2023] [Indexed: 04/14/2023] Open
Abstract
Integrins are a group of heterodimers consisting of α and β subunits that mediate a variety of physiological activities of immune cells, including cell migration, adhesion, proliferation, survival, and immunotolerance. Multiple types of integrins act differently on the same immune cells, while the same integrin may exert various effects on different immune cells. In the development of cancer, integrins are involved in the regulation of cancer cell proliferation, invasion, migration, and angiogenesis; conversely, integrins promote immune cell aggregation to mediate the elimination of tumors. The important roles of integrins in cancer progression have provided valuable clues for the diagnosis and targeted treatment of cancer. Furthermore, many integrin inhibitors have been investigated in clinical trials to explore effective regimens and reduce side effects. Due to the complexity of the mechanism of integrin-mediated cancer progression, challenges remain in the research and development of cancer immunotherapies (CITs). This review enumerates the effects of integrins on four types of immune cells and the potential mechanisms involved in the progression of cancer, which will provide ideas for more optimal CIT in the future.
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Affiliation(s)
- Qingfang Zhang
- College of Basic Medical, Nanchang University, Nanchang 330006, China
- Queen Mary School, Medical Department, Nanchang University, Nanchang 330031, China
| | - Shuo Zhang
- College of Basic Medical, Nanchang University, Nanchang 330006, China
- Queen Mary School, Medical Department, Nanchang University, Nanchang 330031, China
| | - Jianrui Chen
- College of Basic Medical, Nanchang University, Nanchang 330006, China
- Queen Mary School, Medical Department, Nanchang University, Nanchang 330031, China
| | - Zhenzhen Xie
- College of Basic Medical, Nanchang University, Nanchang 330006, China
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Pang X, He X, Qiu Z, Zhang H, Xie R, Liu Z, Gu Y, Zhao N, Xiang Q, Cui Y. Targeting integrin pathways: mechanisms and advances in therapy. Signal Transduct Target Ther 2023; 8:1. [PMID: 36588107 PMCID: PMC9805914 DOI: 10.1038/s41392-022-01259-6] [Citation(s) in RCA: 126] [Impact Index Per Article: 126.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 11/14/2022] [Accepted: 11/21/2022] [Indexed: 01/03/2023] Open
Abstract
Integrins are considered the main cell-adhesion transmembrane receptors that play multifaceted roles as extracellular matrix (ECM)-cytoskeletal linkers and transducers in biochemical and mechanical signals between cells and their environment in a wide range of states in health and diseases. Integrin functions are dependable on a delicate balance between active and inactive status via multiple mechanisms, including protein-protein interactions, conformational changes, and trafficking. Due to their exposure on the cell surface and sensitivity to the molecular blockade, integrins have been investigated as pharmacological targets for nearly 40 years, but given the complexity of integrins and sometimes opposite characteristics, targeting integrin therapeutics has been a challenge. To date, only seven drugs targeting integrins have been successfully marketed, including abciximab, eptifibatide, tirofiban, natalizumab, vedolizumab, lifitegrast, and carotegrast. Currently, there are approximately 90 kinds of integrin-based therapeutic drugs or imaging agents in clinical studies, including small molecules, antibodies, synthetic mimic peptides, antibody-drug conjugates (ADCs), chimeric antigen receptor (CAR) T-cell therapy, imaging agents, etc. A serious lesson from past integrin drug discovery and research efforts is that successes rely on both a deep understanding of integrin-regulatory mechanisms and unmet clinical needs. Herein, we provide a systematic and complete review of all integrin family members and integrin-mediated downstream signal transduction to highlight ongoing efforts to develop new therapies/diagnoses from bench to clinic. In addition, we further discuss the trend of drug development, how to improve the success rate of clinical trials targeting integrin therapies, and the key points for clinical research, basic research, and translational research.
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Affiliation(s)
- Xiaocong Pang
- grid.411472.50000 0004 1764 1621Department of Pharmacy, Peking University First Hospital, Xishiku Street, Xicheng District, 100034 Beijing, China ,grid.411472.50000 0004 1764 1621Institute of Clinical Pharmacology, Peking University First Hospital, Xueyuan Road 38, Haidian District, 100191 Beijing, China
| | - Xu He
- grid.411472.50000 0004 1764 1621Department of Pharmacy, Peking University First Hospital, Xishiku Street, Xicheng District, 100034 Beijing, China ,grid.411472.50000 0004 1764 1621Institute of Clinical Pharmacology, Peking University First Hospital, Xueyuan Road 38, Haidian District, 100191 Beijing, China
| | - Zhiwei Qiu
- grid.411472.50000 0004 1764 1621Department of Pharmacy, Peking University First Hospital, Xishiku Street, Xicheng District, 100034 Beijing, China ,grid.411472.50000 0004 1764 1621Institute of Clinical Pharmacology, Peking University First Hospital, Xueyuan Road 38, Haidian District, 100191 Beijing, China
| | - Hanxu Zhang
- grid.411472.50000 0004 1764 1621Department of Pharmacy, Peking University First Hospital, Xishiku Street, Xicheng District, 100034 Beijing, China ,grid.411472.50000 0004 1764 1621Institute of Clinical Pharmacology, Peking University First Hospital, Xueyuan Road 38, Haidian District, 100191 Beijing, China
| | - Ran Xie
- grid.411472.50000 0004 1764 1621Department of Pharmacy, Peking University First Hospital, Xishiku Street, Xicheng District, 100034 Beijing, China ,grid.411472.50000 0004 1764 1621Institute of Clinical Pharmacology, Peking University First Hospital, Xueyuan Road 38, Haidian District, 100191 Beijing, China
| | - Zhiyan Liu
- grid.411472.50000 0004 1764 1621Department of Pharmacy, Peking University First Hospital, Xishiku Street, Xicheng District, 100034 Beijing, China ,grid.411472.50000 0004 1764 1621Institute of Clinical Pharmacology, Peking University First Hospital, Xueyuan Road 38, Haidian District, 100191 Beijing, China
| | - Yanlun Gu
- grid.411472.50000 0004 1764 1621Department of Pharmacy, Peking University First Hospital, Xishiku Street, Xicheng District, 100034 Beijing, China ,grid.411472.50000 0004 1764 1621Institute of Clinical Pharmacology, Peking University First Hospital, Xueyuan Road 38, Haidian District, 100191 Beijing, China
| | - Nan Zhao
- grid.411472.50000 0004 1764 1621Department of Pharmacy, Peking University First Hospital, Xishiku Street, Xicheng District, 100034 Beijing, China ,grid.411472.50000 0004 1764 1621Institute of Clinical Pharmacology, Peking University First Hospital, Xueyuan Road 38, Haidian District, 100191 Beijing, China
| | - Qian Xiang
- Department of Pharmacy, Peking University First Hospital, Xishiku Street, Xicheng District, 100034, Beijing, China. .,Institute of Clinical Pharmacology, Peking University First Hospital, Xueyuan Road 38, Haidian District, 100191, Beijing, China.
| | - Yimin Cui
- Department of Pharmacy, Peking University First Hospital, Xishiku Street, Xicheng District, 100034, Beijing, China. .,Institute of Clinical Pharmacology, Peking University First Hospital, Xueyuan Road 38, Haidian District, 100191, Beijing, China.
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6
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How snake venom disintegrins affect platelet aggregation and cancer proliferation. Toxicon 2022; 221:106982. [DOI: 10.1016/j.toxicon.2022.106982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/21/2022] [Accepted: 11/22/2022] [Indexed: 11/25/2022]
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Patel A, Perl A. Redox Control of Integrin-Mediated Hepatic Inflammation in Systemic Autoimmunity. Antioxid Redox Signal 2022; 36:367-388. [PMID: 34036799 PMCID: PMC8982133 DOI: 10.1089/ars.2021.0068] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 05/12/2021] [Accepted: 05/13/2021] [Indexed: 12/20/2022]
Abstract
Significance: Systemic autoimmunity affects 3%-5% of the population worldwide. Systemic lupus erythematosus (SLE) is a prototypical form of such condition, which affects 20-150 of 100,000 people globally. Liver dysfunction, defined by increased immune cell infiltration into the hepatic parenchyma, is an understudied manifestation that affects up to 20% of SLE patients. Autoimmunity in SLE involves proinflammatory lineage specification in the immune system that occurs with oxidative stress and profound changes in cellular metabolism. As the primary metabolic organ of the body, the liver is uniquely capable to encounter oxidative stress through first-pass derivatization and filtering of waste products. Recent Advances: The traffic of immune cells from their development through recirculation in the liver is guided by cell adhesion molecules (CAMs) and integrins, cell surface proteins that tightly anchor cells together. The surface expression of CAMs and integrins is regulated via endocytic traffic that is sensitive to oxidative stress. Reactive oxygen species (ROS) that elicit oxidative stress in the liver may originate from the mitochondria, the cytosol, or the cell membrane. Critical Issues: While hepatic ROS production is a source of vulnerability, it also modulates the development and function of the immune system. In turn, the liver employs antioxidant defense mechanisms to protect itself from damage that can be harnessed to serve as therapeutic mechanisms against autoimmunity, inflammation, and development of hepatocellular carcinoma. Future Directions: This review is aimed at delineating redox control of integrin signaling in the liver and checkpoints of regulatory impact that can be targeted for treatment of inflammation in systemic autoimmunity. Antioxid. Redox Signal. 36, 367-388.
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Affiliation(s)
- Akshay Patel
- Division of Rheumatology, Department of Medicine, College of Medicine, State University of New York Upstate Medical University, Syracuse, New York, USA
- Department of Microbiology and Immunology, College of Medicine, State University of New York Upstate Medical University, Syracuse, New York, USA
- Department of Biochemistry and Molecular Biology, College of Medicine, State University of New York Upstate Medical University, Syracuse, New York, USA
| | - Andras Perl
- Division of Rheumatology, Department of Medicine, College of Medicine, State University of New York Upstate Medical University, Syracuse, New York, USA
- Department of Microbiology and Immunology, College of Medicine, State University of New York Upstate Medical University, Syracuse, New York, USA
- Department of Biochemistry and Molecular Biology, College of Medicine, State University of New York Upstate Medical University, Syracuse, New York, USA
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Tan X, Banerjee P, Liu X, Yu J, Lee S, Ahn YH, Creighton CJ, Kurie JM. Transcriptional control of a collagen deposition and adhesion process that promotes lung adenocarcinoma growth and metastasis. JCI Insight 2021; 7:153948. [PMID: 34874914 PMCID: PMC8765047 DOI: 10.1172/jci.insight.153948] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 11/24/2021] [Indexed: 11/17/2022] Open
Abstract
A fibrotic stroma accumulates in advanced cancers, and invasive cancer cells migrate along collagen fibers that facilitate dissemination from the primary tumor. However, the ways in which tumor cells govern these processes remain unclear. Here, we report that the epithelial-mesenchymal transition–activating transcription factor ZEB1 increased type I collagen (Col1) secretion and enhanced tumor cell adherence to Col1. Mechanistically, ZEB1 increased the levels of α1β1 integrin (encoded by Itga1 and Itgb1) by inhibiting PP2A activity, which reduced nuclear accumulation of HDAC4 and, thereby, derepressed Itga1 gene transcription. In parallel, ZEB1 relieved the miRNA-148a-mediated silencing of Itga1. High levels of Itga1 enhanced tumor cell adherence to Col1 and were essential for Col1-induced tumor growth and metastasis. Furthermore, ZEB1 enhanced Col1 secretion by increasing the expression of a kinesin protein that facilitated transport and secretion of Col1-containing vesicles. Our findings elucidate a transcriptional mechanism by which lung adenocarcinoma cells coordinate a collagen deposition and adhesion process that facilitates tumor progression.
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Affiliation(s)
- Xiaochao Tan
- Department of Thoracic and Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Priyam Banerjee
- Department of Thoracic and Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Xin Liu
- Department of Thoracic and Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Jiang Yu
- Department of Thoracic and Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Sieun Lee
- Department of Thoracic and Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, United States of America
| | - Young-Ho Ahn
- Department of Molecular Medicine, Ewha Womans University, Seoul, Korea, Republic of
| | - Chad J Creighton
- Department of Medicine and Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, United States of America
| | - Jonathan M Kurie
- Department of Thoracic and Head and Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, United States of America
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Bromley SK, Akbaba H, Mani V, Mora-Buch R, Chasse AY, Sama A, Luster AD. CD49a Regulates Cutaneous Resident Memory CD8 + T Cell Persistence and Response. Cell Rep 2021; 32:108085. [PMID: 32877667 PMCID: PMC7520726 DOI: 10.1016/j.celrep.2020.108085] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 06/15/2020] [Accepted: 08/07/2020] [Indexed: 12/12/2022] Open
Abstract
CD8+ tissue-resident memory T cells (TRM) persist at sites of previous infection, where they provide rapid local protection against pathogen challenge. CD8+ TRM expressing the α1 chain (CD49a) of integrin VLA-1 have been identified within sites of resolved skin infection and in vitiligo lesions. We demonstrate that CD49a is expressed early following T cell activation in vivo, and TGF-β and IL-12 induce CD49a expression by CD8+ T cells in vitro. Despite this rapid expression, CD49a is not required for the generation of a primary CD8+ T cell response to cutaneous herpes simplex virus (HSV) infection, migration of CD8+ T cells across the epidermal basement membrane, or positioning of TRM within basal epidermis. Rather, CD49a supports CD8+ TRM persistence within skin, regulates epidermal CD8+ TRM dendritic extensions, and increases the frequency of IFN-γ+ CD8+ TRM following local antigen challenge. Our results suggest that CD49a promotes optimal cutaneous CD8+ TRM-mediated immunity. Bromley et al. demonstrate that IL-12 or TGF-β can induce CD49a expression by CD8+ T cells. Following herpes simplex virus infection, CD49a is not required for CD8+ T cell entry into or localization within the epidermis. Rather, CD49a promotes skin TRM persistence, dendritic morphology, and optimal response to antigen challenge.
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Affiliation(s)
- Shannon K Bromley
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
| | - Hasan Akbaba
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA; Department of Pharmaceutical Biotechnology Faculty of Pharmacy, Ege University, 35100, Bornova, Izmir, Turkey
| | - Vinidhra Mani
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA; Immunology Graduate Program, Harvard Medical School, Boston, MA, USA
| | - Rut Mora-Buch
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Alexandra Y Chasse
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Andrea Sama
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Andrew D Luster
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
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10
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Li W, Chi N, Rathnayake RAC, Wang R. Distinctive roles of fibrillar collagen I and collagen III in mediating fibroblast-matrix interaction: A nanoscopic study. Biochem Biophys Res Commun 2021; 560:66-71. [PMID: 33975247 DOI: 10.1016/j.bbrc.2021.04.088] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 04/20/2021] [Indexed: 11/17/2022]
Abstract
One major goal in tissue engineering is to create functional materials, mimicking scaffolds in native tissues, to modulate cell function for tissue repair. Collagen is the most abundant structural protein in human body. Though collagen I (COLI) and collagen III (COLIII) are the predominant collagen types in connective tissues and they form stable hybrid fibrils at varied ratios, cell responses to the hybrid matrices are underinvestigated. In this work, we aim to explicate the distinctive roles of COLI and COLIII in fibroblast activation. Unidirectionally aligned COLI, COLIII and COLI-COLIII hybrid nanofibrils were generated via epitaxial growth of collagen on mica. AFM analyses revealed that, with the increase of COLI/COLIII ratio, the fibril width and stiffness increased and the binding affinity of cells to the matrix decreased. A hybrid matrix was found to activate fibroblasts the most effectively, characterized by extensive cell polarization with rigid stress fiber bundles and high α-SMA expression, and by the highest-level of collagen synthesis. It is ascribed to the fine balance between biochemical and biophysical cues achieved on the hybrid matrix. Thus, matrices of aligned COLI-COLIII hybrid fibrils and their derived multifunctional composites can be good candidates of implantation scaffolds for tissue regeneration.
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Affiliation(s)
- Wen Li
- Department of Chemistry, Illinois Institute of Technology, 3101 S. Dearborn St., Chicago, IL, 60616, USA
| | - Naiwei Chi
- Department of Chemistry, Illinois Institute of Technology, 3101 S. Dearborn St., Chicago, IL, 60616, USA
| | - Rathnayake A C Rathnayake
- Department of Chemistry, Illinois Institute of Technology, 3101 S. Dearborn St., Chicago, IL, 60616, USA
| | - Rong Wang
- Department of Chemistry, Illinois Institute of Technology, 3101 S. Dearborn St., Chicago, IL, 60616, USA.
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Musiime M, Chang J, Hansen U, Kadler KE, Zeltz C, Gullberg D. Collagen Assembly at the Cell Surface: Dogmas Revisited. Cells 2021; 10:662. [PMID: 33809734 PMCID: PMC8002325 DOI: 10.3390/cells10030662] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/08/2021] [Accepted: 03/12/2021] [Indexed: 12/12/2022] Open
Abstract
With the increased awareness about the importance of the composition, organization, and stiffness of the extracellular matrix (ECM) for tissue homeostasis, there is a renewed need to understand the details of how cells recognize, assemble and remodel the ECM during dynamic tissue reorganization events. Fibronectin (FN) and fibrillar collagens are major proteins in the ECM of interstitial matrices. Whereas FN is abundant in cell culture studies, it is often only transiently expressed in the acute phase of wound healing and tissue regeneration, by contrast fibrillar collagens form a persistent robust scaffold in healing and regenerating tissues. Historically fibrillar collagens in interstitial matrices were seen merely as structural building blocks. Cell anchorage to the collagen matrix was thought to be indirect and occurring via proteins like FN and cell surface-mediated collagen fibrillogenesis was believed to require a FN matrix. The isolation of four collagen-binding integrins have challenged this dogma, and we now know that cells anchor directly to monomeric forms of fibrillar collagens via the α1β1, α2β1, α10β1 and α11β1 integrins. The binding of these integrins to the mature fibrous collagen matrices is more controversial and depends on availability of integrin-binding sites. With increased awareness about the importance of characterizing the total integrin repertoire on cells, including the integrin collagen receptors, the idea of an absolute dependence on FN for cell-mediated collagen fibrillogenesis needs to be re-evaluated. We will summarize data suggesting that collagen-binding integrins in vitro and in vivo are perfectly well suited for nucleating and supporting collagen fibrillogenesis, independent of FN.
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Affiliation(s)
- Moses Musiime
- Department of Biomedicine and Centre for Cancer Biomarkers, University of Bergen, Jonas Lies vei 91, N-5009 Bergen, Norway; (M.M.); (C.Z.)
| | - Joan Chang
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine & Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, UK; (J.C.); (K.E.K.)
| | - Uwe Hansen
- Institute for Musculoskeletal Medicine, University Hospital of Münster, 48149 Münster, Germany;
| | - Karl E. Kadler
- Wellcome Centre for Cell-Matrix Research, Faculty of Biology, Medicine & Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, UK; (J.C.); (K.E.K.)
| | - Cédric Zeltz
- Department of Biomedicine and Centre for Cancer Biomarkers, University of Bergen, Jonas Lies vei 91, N-5009 Bergen, Norway; (M.M.); (C.Z.)
| | - Donald Gullberg
- Department of Biomedicine and Centre for Cancer Biomarkers, University of Bergen, Jonas Lies vei 91, N-5009 Bergen, Norway; (M.M.); (C.Z.)
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12
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Eckert IN, Ribechini E, Jarick KJ, Strozniak S, Potter SJ, Beilhack A, Lutz MB. VLA-1 Binding to Collagen IV Controls Effector T Cell Suppression by Myeloid-Derived Suppressor Cells in the Splenic Red Pulp. Front Immunol 2021; 11:616531. [PMID: 33584706 PMCID: PMC7873891 DOI: 10.3389/fimmu.2020.616531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 11/26/2020] [Indexed: 11/13/2022] Open
Abstract
Myeloid-derived suppressor cells (MDSCs) represent a major population controlling T cell immune responses. However, little is known about their molecular requirements for homing and T cell interaction to mediate suppression. Here, we investigated the functional role of the homing and collagen IV receptor VLA-1 (α1β1-integrin) on in vitro GM-CSF generated murine MDSCs from wild-type (WT) and CD49a/α1-integrin (Itga1−/−) gene-deficient mice. Here, we found that effector (Teff) but not naive (Tn) CD4+ T cells express VLA-1 and monocytes further up-regulated their expression after culture in GM-CSF when they differentiated into the monocytic subset of resting MDSCs (R-MDSCs). Subsequent activation of R-MDSCs by LPS+IFN-γ (A-MDSCs) showed increased in vitro suppressor potential, which was independent of VLA-1. Surprisingly, VLA-1 deficiency did not influence A-MDSC motility or migration on collagen IV in vitro. However, interaction times of Itga1−/− A-MDSCs with Teff were shorter than with WT A-MDSCs on collagen IV but not on fibronectin substrate in vitro. After injection, A-MDSCs homed to the splenic red pulp where they co-localized with Teff and showed immediate suppression already after 6 h as shown by inhibition of T cell proliferation and induction of apoptosis. Injection of A-MDSCs from Itga1−/− mice showed equivalent homing into the spleen but a reduced suppressive effect. Interaction studies of A-MDSCs with Teff in the subcapsular red pulp with intravital two-photon microscopy revealed also here that MDSC motility and migration parameters were not altered by VLA-1 deficiency, but the interaction times with Teff were reduced. Together, our data point to a new role of VLA-1 adhesion to collagen IV as a prerequisite for extended contact times with Teff required for suppression.
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Affiliation(s)
- Ina N Eckert
- Institute for Virology and Immunobiology, University of Würzburg, Würzburg, Germany
| | - Eliana Ribechini
- Institute for Virology and Immunobiology, University of Würzburg, Würzburg, Germany
| | - Katja J Jarick
- Department of Internal Medicine II, University Hospital Würzburg, Würzburg, Germany
| | - Sandra Strozniak
- Institute for Virology and Immunobiology, University of Würzburg, Würzburg, Germany
| | - Sarah J Potter
- Institute for Virology and Immunobiology, University of Würzburg, Würzburg, Germany
| | - Andreas Beilhack
- Department of Internal Medicine II, University Hospital Würzburg, Würzburg, Germany
| | - Manfred B Lutz
- Institute for Virology and Immunobiology, University of Würzburg, Würzburg, Germany
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13
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Dhavalikar P, Robinson A, Lan Z, Jenkins D, Chwatko M, Salhadar K, Jose A, Kar R, Shoga E, Kannapiran A, Cosgriff-Hernandez E. Review of Integrin-Targeting Biomaterials in Tissue Engineering. Adv Healthc Mater 2020; 9:e2000795. [PMID: 32940020 PMCID: PMC7960574 DOI: 10.1002/adhm.202000795] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 08/27/2020] [Indexed: 12/12/2022]
Abstract
The ability to direct cell behavior has been central to the success of numerous therapeutics to regenerate tissue or facilitate device integration. Biomaterial scientists are challenged to understand and modulate the interactions of biomaterials with biological systems in order to achieve effective tissue repair. One key area of research investigates the use of extracellular matrix-derived ligands to target specific integrin interactions and induce cellular responses, such as increased cell migration, proliferation, and differentiation of mesenchymal stem cells. These integrin-targeting proteins and peptides have been implemented in a variety of different polymeric scaffolds and devices to enhance tissue regeneration and integration. This review first presents an overview of integrin-mediated cellular processes that have been identified in angiogenesis, wound healing, and bone regeneration. Then, research utilizing biomaterials are highlighted with integrin-targeting motifs as a means to direct these cellular processes to enhance tissue regeneration. In addition to providing improved materials for tissue repair and device integration, these innovative biomaterials provide new tools to probe the complex processes of tissue remodeling in order to enhance the rational design of biomaterial scaffolds and guide tissue regeneration strategies.
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Affiliation(s)
- Prachi Dhavalikar
- Department of Biomedical Engineering, University of Texas at Austin, Austin, TX, 78712, USA
| | - Andrew Robinson
- Department of Biomedical Engineering, University of Texas at Austin, Austin, TX, 78712, USA
| | - Ziyang Lan
- Department of Biomedical Engineering, University of Texas at Austin, Austin, TX, 78712, USA
| | - Dana Jenkins
- Department of Biomedical Engineering, University of Texas at Austin, Austin, TX, 78712, USA
| | - Malgorzata Chwatko
- Department of Biomedical Engineering, University of Texas at Austin, Austin, TX, 78712, USA
| | - Karim Salhadar
- Department of Biomedical Engineering, University of Texas at Austin, Austin, TX, 78712, USA
| | - Anupriya Jose
- Department of Biomedical Engineering, University of Texas at Austin, Austin, TX, 78712, USA
| | - Ronit Kar
- Department of Biomedical Engineering, University of Texas at Austin, Austin, TX, 78712, USA
| | - Erik Shoga
- Department of Biomedical Engineering, University of Texas at Austin, Austin, TX, 78712, USA
| | - Aparajith Kannapiran
- Department of Biomedical Engineering, University of Texas at Austin, Austin, TX, 78712, USA
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14
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McQuitty CE, Williams R, Chokshi S, Urbani L. Immunomodulatory Role of the Extracellular Matrix Within the Liver Disease Microenvironment. Front Immunol 2020; 11:574276. [PMID: 33262757 PMCID: PMC7686550 DOI: 10.3389/fimmu.2020.574276] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 10/14/2020] [Indexed: 12/12/2022] Open
Abstract
Chronic liver disease when accompanied by underlying fibrosis, is characterized by an accumulation of extracellular matrix (ECM) proteins and chronic inflammation. Although traditionally considered as a passive and largely architectural structure, the ECM is now being recognized as a source of potent damage-associated molecular pattern (DAMP)s with immune-active peptides and domains. In parallel, the ECM anchors a range of cytokines, chemokines and growth factors, all of which are capable of modulating immune responses. A growing body of evidence shows that ECM proteins themselves are capable of modulating immunity either directly via ligation with immune cell receptors including integrins and TLRs, or indirectly through release of immunoactive molecules such as cytokines which are stored within the ECM structure. Notably, ECM deposition and remodeling during injury and fibrosis can result in release or formation of ECM-DAMPs within the tissue, which can promote local inflammatory immune response and chemotactic immune cell recruitment and inflammation. It is well described that the ECM and immune response are interlinked and mutually participate in driving fibrosis, although their precise interactions in the context of chronic liver disease are poorly understood. This review aims to describe the known pro-/anti-inflammatory and fibrogenic properties of ECM proteins and DAMPs, with particular reference to the immunomodulatory properties of the ECM in the context of chronic liver disease. Finally, we discuss the importance of developing novel biotechnological platforms based on decellularized ECM-scaffolds, which provide opportunities to directly explore liver ECM-immune cell interactions in greater detail.
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Affiliation(s)
- Claire E. McQuitty
- Institute of Hepatology, Foundation for Liver Research, London, United Kingdom
- Faculty of Life Sciences & Medicine, King’s College London, London, United Kingdom
| | - Roger Williams
- Institute of Hepatology, Foundation for Liver Research, London, United Kingdom
- Faculty of Life Sciences & Medicine, King’s College London, London, United Kingdom
| | - Shilpa Chokshi
- Institute of Hepatology, Foundation for Liver Research, London, United Kingdom
- Faculty of Life Sciences & Medicine, King’s College London, London, United Kingdom
| | - Luca Urbani
- Institute of Hepatology, Foundation for Liver Research, London, United Kingdom
- Faculty of Life Sciences & Medicine, King’s College London, London, United Kingdom
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15
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Bourgot I, Primac I, Louis T, Noël A, Maquoi E. Reciprocal Interplay Between Fibrillar Collagens and Collagen-Binding Integrins: Implications in Cancer Progression and Metastasis. Front Oncol 2020; 10:1488. [PMID: 33014790 PMCID: PMC7461916 DOI: 10.3389/fonc.2020.01488] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 07/13/2020] [Indexed: 12/14/2022] Open
Abstract
Cancers are complex ecosystems composed of malignant cells embedded in an intricate microenvironment made of different non-transformed cell types and extracellular matrix (ECM) components. The tumor microenvironment is governed by constantly evolving cell-cell and cell-ECM interactions, which are now recognized as key actors in the genesis, progression and treatment of cancer lesions. The ECM is composed of a multitude of fibrous proteins, matricellular-associated proteins, and proteoglycans. This complex structure plays critical roles in cancer progression: it functions as the scaffold for tissues organization and provides biochemical and biomechanical signals that regulate key cancer hallmarks including cell growth, survival, migration, differentiation, angiogenesis, and immune response. Cells sense the biochemical and mechanical properties of the ECM through specialized transmembrane receptors that include integrins, discoidin domain receptors, and syndecans. Advanced stages of several carcinomas are characterized by a desmoplastic reaction characterized by an extensive deposition of fibrillar collagens in the microenvironment. This compact network of fibrillar collagens promotes cancer progression and metastasis, and is associated with low survival rates for cancer patients. In this review, we highlight how fibrillar collagens and their corresponding integrin receptors are modulated during cancer progression. We describe how the deposition and alignment of collagen fibers influence the tumor microenvironment and how fibrillar collagen-binding integrins expressed by cancer and stromal cells critically contribute in cancer hallmarks.
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Affiliation(s)
| | | | | | | | - Erik Maquoi
- Laboratory of Tumor and Development Biology, GIGA-Cancer, University of Liège, Liège, Belgium
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16
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Brinkhof B, Zhang B, Cui Z, Ye H, Wang H. ALCAM (CD166) as a gene expression marker for human mesenchymal stromal cell characterisation. Gene X 2020; 763S:100031. [PMID: 32550557 PMCID: PMC7285916 DOI: 10.1016/j.gene.2020.100031] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 03/08/2020] [Indexed: 02/06/2023] Open
Abstract
Background Human mesenchymal stromal cells (MSCs) phenotypically share their positive expression of the International Society for Cell and Gene Therapy (ISCT) markers CD73, CD90 and CD105 with fibroblasts. Fibroblasts are often co-isolated as an unwanted by-product from biopsy and they can rapidly overgrow the MSCs in culture. Indeed, many other surface markers have been proposed, though no unique MSC specific marker has been identified yet. Quantitative PCR (qPCR) is a precise, efficient and rapid method for gene expression analysis. To identify a marker suitable for accurate MSC characterisation, qPCR was exploited. Methods and results Two commercially obtained bone marrow (BM) derived MSCs and an hTERT immortalised BM-MSC line (MSC-TERT) have been cultured for different days and at different oxygen levels before RNA extraction. Together with RNA samples previous extracted from umbilical cord derived MSCs and MSC-TERT cells cultured in 2D or 3D, this heterogeneous sample set was quantitatively analysed for the expression levels of 18 candidate MSC marker genes. The expression levels in MSCs were compared with the expression levels in fibroblasts to verify the differentiation capability of these genes between MSCs and fibroblasts. None of the ISCT markers could differentiate between fibroblasts and MSCs. A total of six other genes (ALCAM, CLIC1, EDIL3, EPHA2, NECTIN2, and TMEM47) were identified as possible biomarkers for accurate identification of MSCs. Conclusion Justified by considerations on expression level, reliability and specificity, Activated-Leukocyte Cell Adhesion Molecule (ALCAM) was the best candidate for improving the biomarker set of MSC identification.
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Key Words
- (q)PCR, (quantitative) polymerase chain reaction
- AD, adipose
- AF, Amniotic Fluid
- ALCAM, Activated-Leukocyte Cell Adhesion Molecule
- Activated-leukocyte cell adhesion molecule
- BM, bone marrow
- BSG, Basigin
- Biomarker
- CD, cluster of differentiation
- CLIC1, chloride intracellular channel 1
- CLIC4, chloride intracellular channel 4
- Cq, Quantification cycle
- DF, Dermal Fibroblasts
- DP, Dental Pulp
- EDIL3, EGF like repeats and discoidin domains 3
- ENG, Endoglin
- EPHA2, EPH receptor A2
- ER, Endoplasmatic Reticulum
- FACS, Fluorescence Assisted Cell Sorting
- FN1, Fibronectin 1
- IGFBP7, insulin like growth factor binding protein 7
- ISCT, International Society for Cell and Gene Therapy
- ITGA1, integrin subunit alpha 1
- LAMP1, lysosomal associated membrane protein 1
- LRRC59, leucine rich repeat containing 59
- MCAM, melanoma cell adhesion molecule
- MM, Multiple Myeloma
- MPC, Mesenchymal Progenitor Cell
- MSC
- MSC, Mesenchymal Stromal Cells
- NECTIN2, nectin cell adhesion molecule 2
- NK, Natural Killer
- NT5E, 5′-nucleotidase ecto
- OS, Osteosarcoma
- PL, Placenta
- PPIA, peptidylprolyl isomerase A
- PUM1, pumilio RNA binding family member 1
- RM, Regenerative Medicine
- RNA
- RNA-seq, RNA sequencing
- RT, Reverse Transcriptase
- Regenerative medicine
- SEM, Standard Error of the Mean
- TBP, TATA-box binding protein
- TCF, Tissue Culture Plate
- TE, Tissue Engineering
- TFRC, transferrin receptor
- THY1, Thy-1 cell surface antigen
- TLN1, Talin 1
- TMEM47, transmembrane protein 47
- UC, umbilical cord
- YWHAZ, tyrosine 3-monooxygenase/tryptophan 5-monooxygenase activation protein zeta
- cDNA, DNA complementary to RNA
- qPCR
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Affiliation(s)
- Bas Brinkhof
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, United Kingdom
| | - Bo Zhang
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, United Kingdom
| | - Zhanfeng Cui
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, United Kingdom
| | - Hua Ye
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, United Kingdom
| | - Hui Wang
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, United Kingdom.,Oxford Suzhou Centre for Advanced Research, Suzhou Industrial Park, Jiangsu 215123, China
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17
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Sigaroodi F, Shafaei H, Karimipour M, Dolatkhah MA, Delazar A. Aloe Vera/Collagen Mixture Induces Integrin α1β1 and PECAM-1 Genes Expression in Human Adipose-Derived Stem Cells. Adv Pharm Bull 2019; 9:662-667. [PMID: 31857972 PMCID: PMC6912176 DOI: 10.15171/apb.2019.077] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 06/06/2019] [Accepted: 06/15/2019] [Indexed: 12/25/2022] Open
Abstract
Purpose: Natural biomaterials are a key base in tissue engineering, and collagen, as the main content of the extracellular matrix (ECM), is frequently used in tissue engineering. Aloe vera has some therapeutic effects on ulcers, therefore, the use of this natural resource has always been considered for improving collagen function. We aimed to evaluate the effect of Aloe vera/ Collagen blended on cell viability, cell attachment, and angiogenic potential by determining of integrin α1β1 and platelet endothelial cell adhesion molecule (PECAM-1) genes expression in human adipose-derived stem cells (hASCs). Methods: In this study, hASCs after harvesting of adipose tissues from abdominal subcutaneous adipose tissue and isolation, were cultured in four groups of control, collagen gel, Aloe vera gel, and Aloe vera/collagen blended in vitro environment at 24h and then cell viability was assessed by MTT (3-(4,5-dimethylthiazol 2-yl)-2,5-diphenyltetrazolium) assay. Integrin α1β1 and PECAM-1 genes expression were evaluated by real-time RT-PCR. Results: The results of MTT showed that the combination of Aloe vera/collagen was retained the cell viability at the normal range and improved it. In real-time RT-PCR results, integrin α1β1 and PECAM-1 gene expression were increased in the Aloe vera/collagen blended group compared to the control group. Conclusion: For tissue engineering purposes, Aloe vera improves collagen properties in the culture of hASCs by increasing the expression of the integrin α1β1 and PECAM-1 genes.
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Affiliation(s)
- Faraz Sigaroodi
- Stem Cells Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Anatomical Sciences, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hajar Shafaei
- Stem Cells Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Anatomical Sciences, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Karimipour
- Stem Cells Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Anatomical Sciences, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Amin Dolatkhah
- Department of Anatomical Sciences, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Abbas Delazar
- Faculty of Pharmacy and Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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18
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Xu L, Huang G, Guo X, Zhou Q, He S. Total flavonoids, extracted from Polygonum knotweed L, exert beneficial hepatoprotection against liver injury. J Cell Biochem 2019; 120:12677-12683. [PMID: 30854697 DOI: 10.1002/jcb.28535] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 12/30/2018] [Accepted: 01/09/2019] [Indexed: 12/14/2022]
Abstract
Hepatic function is of great concern in metabolic and immunological homeostasis. Traditionally, medical management to liver damage may benefit from phytomedicine, such as Chinese herbs. In southern China, Polygonum perfoliatum L can contribute to alleviating pathological symptoms of liver disease, such as hepatitis. However, bioactive compounds of hepatoprotection in this herb are still less to be investigated. In this study, clinical data of patients with drug-induced liver injury were collected on the basis of serological analyses. In addition, we extracted and identified total flavonoids from Polygonum perfoliatum L (TFPPL) before implementing biochemical experiments in vivo. In human data, the blood contents of liver function enzymes were visibly elevated, and the percentage of immune cells were abnormally changed. The data from the animal study showed that TFPPL-treated carbon tetrachloride-exposed mice resulted in reduced absolute liver mass and lowered blood levels of liver functional enzymes (alanine transaminase and aspartate transaminase). In enzyme-linked immunosorbent assay, the comparable data indicated that serological tumor necrosis factor α (TNF-α), interleukin 6, and heat shock protein 90 (Hsp90) contents were reduced in TFPPL-treated mice. In histopathological observations, TFPPL-treated mice exhibited reduced hepatocellular Hsp90, TNF-α, nuclear factor κ-light-chain-enhancer of activated B cells-p65 positive cells, and lowered Bax and caspase-3-labeled cells in the livers. Further, intrasplenic integrin β1, 5'-nucleotidase, and antigen KI-67 positive cells were increased after TFPPL treatments. Taken together, our present findings demonstrate that herb-extracted TFPPL exert potential hepatoprotective activities against chemical-induced liver damage in mice, possibly through the pharmacological mechanisms of inhibiting inflammatory stress and apoptosis, inactivating Hsp90 bioactivity in the liver, and improving splenic immunocompetence.
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Affiliation(s)
- Lingyuan Xu
- Department of Pharmacy, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Guikun Huang
- College of Pharmacy, Youjiang Medical University for Nationalities, Baise, China
| | - Xiaobao Guo
- Department of Pharmacy, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Qiji Zhou
- Department of Pharmacy, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Silu He
- Department of Pharmacy, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
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19
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Nunes AM, Minetti CASA, Remeta DP, Baum J. Magnesium Activates Microsecond Dynamics to Regulate Integrin-Collagen Recognition. Structure 2018; 26:1080-1090.e5. [PMID: 29937357 DOI: 10.1016/j.str.2018.05.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 04/03/2018] [Accepted: 05/14/2018] [Indexed: 12/21/2022]
Abstract
Integrin receptors bind collagen via metal-mediated interactions that are modulated by magnesium (Mg2+) levels in the extracellular matrix. Nuclear magnetic resonance-based relaxation experiments, isothermal titration calorimetry, and adhesion assays reveal that Mg2+ functions as both a structural anchor and dynamic switch of the α1β1 integrin I domain (α1I). Specifically, Mg2+ binding activates micro- to millisecond timescale motions of residues distal to the binding site, particularly those surrounding the salt bridge at helix 7 and near the metal ion-dependent adhesion site. Mutagenesis of these residues impacts α1I functional activity, thereby suggesting that Mg-bound α1I dynamics are important for collagen binding and consequent allosteric rearrangement of the low-affinity closed to high-affinity open conformation. We propose a multistep recognition mechanism for α1I-Mg-collagen interactions involving both conformational selection and induced-fit processes. Our findings unravel the multifaceted role of Mg2+ in integrin-collagen recognition and assist in elucidating the molecular mechanisms by which metals regulate protein-protein interactions.
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Affiliation(s)
- Ana Monica Nunes
- Department of Chemistry & Chemical Biology, Rutgers University, 610 Taylor Road, Piscataway, NJ 08854, USA; Center for Integrative Proteomics Research, Rutgers University, 174 Frelinghuysen Road, Piscataway, NJ 08854, USA
| | - Conceição A S A Minetti
- Department of Chemistry & Chemical Biology, Rutgers University, 610 Taylor Road, Piscataway, NJ 08854, USA
| | - David P Remeta
- Department of Chemistry & Chemical Biology, Rutgers University, 610 Taylor Road, Piscataway, NJ 08854, USA
| | - Jean Baum
- Department of Chemistry & Chemical Biology, Rutgers University, 610 Taylor Road, Piscataway, NJ 08854, USA; Center for Integrative Proteomics Research, Rutgers University, 174 Frelinghuysen Road, Piscataway, NJ 08854, USA.
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20
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Schnittert J, Bansal R, Storm G, Prakash J. Integrins in wound healing, fibrosis and tumor stroma: High potential targets for therapeutics and drug delivery. Adv Drug Deliv Rev 2018; 129:37-53. [PMID: 29414674 DOI: 10.1016/j.addr.2018.01.020] [Citation(s) in RCA: 124] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 01/16/2018] [Accepted: 01/29/2018] [Indexed: 12/20/2022]
Abstract
Wound healing is a complex process, which ultimately leads to fibrosis if not repaired well. Pathologically very similar to fibrosis is the tumor stroma, found in several solid tumors which are regarded as wounds that do not heal. Integrins are heterodimeric surface receptors which control various physiological cellular functions. Additionally, integrins also sense ECM-induced extracellular changes during pathological events, leading to cellular responses, which influence ECM remodeling. The purpose and scope of this review is to introduce integrins as key targets for therapeutics and drug delivery within the scope of wound healing, fibrosis and the tumor stroma. This review provides a general introduction to the biology of integrins including their types, ligands, means of signaling and interaction with growth factor receptors. Furthermore, we highlight integrins as key targets for therapeutics and drug delivery, based on their biological role, expression pattern within human tissues and at cellular level. Next, therapeutic approaches targeting integrins, with a focus on clinical studies, and targeted drug delivery strategies based on ligands are described.
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21
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Tan X, Banerjee P, Liu X, Yu J, Gibbons DL, Wu P, Scott KL, Diao L, Zheng X, Wang J, Jalali A, Suraokar M, Fujimoto J, Behrens C, Liu X, Liu CG, Creighton CJ, Wistuba II, Kurie JM. The epithelial-to-mesenchymal transition activator ZEB1 initiates a prometastatic competing endogenous RNA network. J Clin Invest 2018; 128:1267-1282. [PMID: 29324442 DOI: 10.1172/jci97225] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 01/09/2018] [Indexed: 12/23/2022] Open
Abstract
Epithelial tumor cells undergo epithelial-to-mesenchymal transition (EMT) to gain metastatic activity. Competing endogenous RNAs (ceRNAs) have binding sites for a common set of microRNAs (miRs) and regulate each other's expression by sponging miRs. Here, we address whether ceRNAs govern metastasis driven by the EMT-activating transcription factor ZEB1. High miR-181b levels were correlated with an improved prognosis in human lung adenocarcinomas, and metastatic tumor cell lines derived from a murine lung adenocarcinoma model in which metastasis is ZEB1-driven were enriched in miR-181b targets. ZEB1 relieved a strong basal repression of α1 integrin (ITGA1) mRNA, which in turn upregulated adenylyl cyclase 9 mRNA (ADCY9) by sponging miR181b. Ectopic expression of the ITGA1 3'-untranslated region reversed miR-181b-mediated metastasis suppression and increased the levels of adenylyl cyclase 9 protein (AC9), which promoted tumor cell migration and metastasis. In human lung adenocarcinomas, ITGA1 and ADCY9 levels were positively correlated, and an AC9-activated transcriptomic signature had poor-prognostic value. Thus, ZEB1 initiates a miR-181b-regulated ceRNA network to drive metastasis.
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Affiliation(s)
- Xiaochao Tan
- Department of Thoracic/Head and Neck Medical Oncology and
| | | | - Xin Liu
- Department of Thoracic/Head and Neck Medical Oncology and
| | - Jiang Yu
- Department of Thoracic/Head and Neck Medical Oncology and
| | - Don L Gibbons
- Department of Thoracic/Head and Neck Medical Oncology and.,Department of Molecular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Ping Wu
- Department of Molecular and Human Genetics and.,Department of Medicine and Dan L. Duncan Cancer Center, Baylor College of Medicine, Texas, USA
| | - Kenneth L Scott
- Department of Molecular and Human Genetics and.,Department of Medicine and Dan L. Duncan Cancer Center, Baylor College of Medicine, Texas, USA
| | - Lixia Diao
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Xiaofeng Zheng
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Jing Wang
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Ali Jalali
- Department of Neurosurgery, Baylor College of Medicine, Houston, Texas, USA
| | - Milind Suraokar
- Department of Translational Molecular Pathology, Division of Pathology and Laboratory Medicine, and
| | - Junya Fujimoto
- Department of Translational Molecular Pathology, Division of Pathology and Laboratory Medicine, and
| | - Carmen Behrens
- Department of Thoracic/Head and Neck Medical Oncology and.,Department of Translational Molecular Pathology, Division of Pathology and Laboratory Medicine, and
| | - Xiuping Liu
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Chang-Gong Liu
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Chad J Creighton
- Department of Medicine and Dan L. Duncan Cancer Center, Baylor College of Medicine, Texas, USA.,Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Ignacio I Wistuba
- Department of Thoracic/Head and Neck Medical Oncology and.,Department of Translational Molecular Pathology, Division of Pathology and Laboratory Medicine, and
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22
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Pinchuk IV, Powell DW. Immunosuppression by Intestinal Stromal Cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1060:115-129. [DOI: 10.1007/978-3-319-78127-3_7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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23
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Boudjadi S, Bernatchez G, Sénicourt B, Beauséjour M, Vachon PH, Carrier JC, Beaulieu JF. Involvement of the Integrin α1β1 in the Progression of Colorectal Cancer. Cancers (Basel) 2017; 9:cancers9080096. [PMID: 28933766 PMCID: PMC5575599 DOI: 10.3390/cancers9080096] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 07/18/2017] [Accepted: 07/21/2017] [Indexed: 01/08/2023] Open
Abstract
Integrins are a family of heterodimeric glycoproteins involved in bidirectional cell signaling that participate in the regulation of cell shape, adhesion, migration, survival and proliferation. The integrin α1β1 is known to be involved in RAS/ERK proliferative pathway activation and plays an important role in fibroblast proliferation. In the small intestine, the integrin α1 subunit is present in the crypt proliferative compartment and absent in the villus. We have recently shown that the integrin α1 protein and transcript (ITGA1) are present in a large proportion of colorectal cancers (CRC) and that their expression is controlled by the MYC oncogenic factor. Considering that α1 subunit/ITGA1 expression is correlated with MYC in more than 70% of colon adenocarcinomas, we postulated that the integrin α1β1 has a pro-tumoral contribution to CRC. In HT29, T84 and SW480 CRC cells, α1 subunit/ITGA1 knockdown resulted in a reduction of cell proliferation associated with an impaired resistance to anoikis and an altered cell migration in HT29 and T84 cells. Moreover, tumor development in xenografts was reduced in HT29 and T84 sh-ITGA1 cells, associated with extensive necrosis, a low mitotic index and a reduced number of blood vessels. Our results show that α1β1 is involved in tumor cell proliferation, survival and migration. This finding suggests that α1β1 contributes to CRC progression.
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Affiliation(s)
- Salah Boudjadi
- Laboratory of Intestinal Physiopathology, Department of Anatomy and Cell Biology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada.
| | - Gérald Bernatchez
- Department of Medicine, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC J1E 4K8, Canada.
| | - Blanche Sénicourt
- Laboratory of Intestinal Physiopathology, Department of Anatomy and Cell Biology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada.
| | - Marco Beauséjour
- Laboratory of Intestinal Physiopathology, Department of Anatomy and Cell Biology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada.
| | - Pierre H Vachon
- Laboratory of Intestinal Physiopathology, Department of Anatomy and Cell Biology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada.
| | - Julie C Carrier
- Department of Medicine, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC J1E 4K8, Canada.
| | - Jean-François Beaulieu
- Laboratory of Intestinal Physiopathology, Department of Anatomy and Cell Biology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada.
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24
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Derivate Isocorydine (d-ICD) Suppresses Migration and Invasion of Hepatocellular Carcinoma Cell by Downregulating ITGA1 Expression. Int J Mol Sci 2017; 18:ijms18030514. [PMID: 28264467 PMCID: PMC5372530 DOI: 10.3390/ijms18030514] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 02/17/2017] [Accepted: 02/22/2017] [Indexed: 01/07/2023] Open
Abstract
In our previous studies, we found that isocorydine (ICD) could be a potential antitumor agent in hepatocellular carcinoma (HCC). Derivate isocorydine (d-ICD), a more effective antitumor agent, has been demonstrated to inhibit proliferation and drug resistance in HCC. In order to investigate the potential role of d-ICD on HCC cell migration and its possible mechanism, wound healing assay, trans-well invasion assay, western blot analysis, and qRT-PCR were performed to study the migration and invasion ability of HCC cells as well as relevant molecular alteration following d-ICD treatment. Results indicated that the migration and invasion ability of HCC cells were suppressed when cultured with d-ICD. Meanwhile, the expression level of ITGA1 was markedly reduced. Furthermore, we found that ITGA1 promotes HCC cell migration and invasion in vitro, and that ITGA1 can partly reverse the effect of d-ICD-induced migration and invasion suppression in HCC cells. In addition, dual luciferase reporter assay and chromatin immunoprecipitation assay were used to study the expression regulation of ITGA1, and found that E2F1 directly upregulates ITGA1 expression and d-ICD inhibits E2F1 expression. Taken together, these results reveal that d-ICD inhibits HCC cell migration and invasion may partly by downregulating E2F1/ITGA1 expression.
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25
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Ghatak S, Niland S, Schulz JN, Wang F, Eble JA, Leitges M, Mauch C, Krieg T, Zigrino P, Eckes B. Role of Integrins α1β1 and α2β1 in Wound and Tumor Angiogenesis in Mice. THE AMERICAN JOURNAL OF PATHOLOGY 2016; 186:3011-3027. [DOI: 10.1016/j.ajpath.2016.06.021] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Revised: 06/01/2016] [Accepted: 06/30/2016] [Indexed: 12/11/2022]
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26
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Modulation of BMP signalling by integrins. Biochem Soc Trans 2016; 44:1465-1473. [DOI: 10.1042/bst20160111] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 07/11/2016] [Accepted: 07/15/2016] [Indexed: 12/17/2022]
Abstract
The bone morphogenetic protein (BMP) pathway is a major conserved signalling pathway with diverse roles in development and homeostasis. Given that cells exist in three-dimensional environments, one important area is to understand how the BMP pathway operates within such complex cellular environments. The extracellular matrix contains information regarding tissue architecture and its mechanical properties that is transmitted to the cell via integrin receptors. In this review, I describe various examples of modulation of the BMP pathway by integrins. In the case of the Drosophila embryo and some cell line-based studies, integrins have been found to enhance BMP responses through different mechanisms, such as enhancement of BMP ligand–receptor binding and effects on Smad phosphorylation or stability. In these contexts, BMP-dependent activation of integrins is a common theme. However, I also discuss examples where integrins inhibit the BMP pathway, highlighting the context-dependent nature of integrin–BMP cross-talk.
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27
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Nunes AM, Zhu J, Jezioro J, Minetti CASA, Remeta DP, Farndale RW, Hamaia SW, Baum J. Intrinsic local destabilization of the C-terminus predisposes integrin α1 I domain to a conformational switch induced by collagen binding. Protein Sci 2016; 25:1672-81. [PMID: 27342747 DOI: 10.1002/pro.2972] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Revised: 06/20/2016] [Accepted: 06/22/2016] [Indexed: 11/08/2022]
Abstract
Integrin-collagen interactions play a critical role in a myriad of cellular functions that include immune response, and cell development and differentiation, yet their mechanism of binding is poorly understood. There is increasing evidence that conformational flexibility assumes a central role in the molecular mechanisms of protein-protein interactions and here we employ NMR hydrogen-deuterium exchange (HDX) experiments to explore the impact of slower timescale dynamic events. To gain insight into the mechanisms underlying collagen-induced conformational switches, we have undertaken a comparative study between the wild type integrin α1 I and a gain-of-function E317A mutant. NMR HDX results suggest a relationship between regions exhibiting a reduced local stability in the unbound I domain and those that undergo significant conformational changes upon binding. Specifically, the αC and α7 helices within the C-terminus are at the center of such major perturbations and present reduced local stabilities in the unbound state relative to other structural elements. Complementary isothermal titration calorimetry experiments have been performed to derive complete thermodynamic binding profiles for association of the collagen-like triple-helical peptide with wild type α1 I and E317A mutant. The differential energetics observed for E317A are consistent with the HDX experiments and support a model in which intrinsically destabilized regions predispose conformational rearrangement in the integrin I domain. This study highlights the importance of exploring different timescales to delineate allosteric and binding events.
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Affiliation(s)
- Ana Monica Nunes
- Department of Chemistry & Chemical Biology, Rutgers University, Piscataway, New Jersey, 08854.,Center for Integrative Proteomics Research, Rutgers University, Piscataway, New Jersey, 08854
| | - Jie Zhu
- Department of Chemistry & Chemical Biology, Rutgers University, Piscataway, New Jersey, 08854.,Center for Integrative Proteomics Research, Rutgers University, Piscataway, New Jersey, 08854
| | - Jacqueline Jezioro
- Department of Chemistry & Chemical Biology, Rutgers University, Piscataway, New Jersey, 08854.,Center for Integrative Proteomics Research, Rutgers University, Piscataway, New Jersey, 08854
| | - Conceição A S A Minetti
- Department of Chemistry & Chemical Biology, Rutgers University, Piscataway, New Jersey, 08854
| | - David P Remeta
- Department of Chemistry & Chemical Biology, Rutgers University, Piscataway, New Jersey, 08854
| | - Richard W Farndale
- Department of Biochemistry, University of Cambridge, Cambridge, CB2 1QW, United Kingdom
| | - Samir W Hamaia
- Department of Biochemistry, University of Cambridge, Cambridge, CB2 1QW, United Kingdom
| | - Jean Baum
- Department of Chemistry & Chemical Biology, Rutgers University, Piscataway, New Jersey, 08854.,Center for Integrative Proteomics Research, Rutgers University, Piscataway, New Jersey, 08854
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28
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Contribution of collagen adhesion receptors to tissue fibrosis. Cell Tissue Res 2016; 365:521-38. [DOI: 10.1007/s00441-016-2440-8] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 06/01/2016] [Indexed: 02/07/2023]
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29
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Zeltz C, Gullberg D. The integrin-collagen connection--a glue for tissue repair? J Cell Sci 2016; 129:653-64. [PMID: 26857815 DOI: 10.1242/jcs.180992] [Citation(s) in RCA: 116] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The α1β1, α2β1, α10β1 and α11β1 integrins constitute a subset of the integrin family with affinity for GFOGER-like sequences in collagens. Integrins α1β1 and α2β1 were originally identified on a subset of activated T-cells, and have since been found to be expressed on a number of cell types including platelets (α2β1), vascular cells (α1β1, α2β1), epithelial cells (α1β1, α2β1) and fibroblasts (α1β1, α2β1). Integrin α10β1 shows a distribution that is restricted to mesenchymal stem cells and chondrocytes, whereas integrin α11β1 appears restricted to mesenchymal stem cells and subsets of fibroblasts. The bulk of the current literature suggests that collagen-binding integrins only have a limited role in adult connective tissue homeostasis, partly due to a limited availability of cell-binding sites in the mature fibrillar collagen matrices. However, some recent data suggest that, instead, they are more crucial for dynamic connective tissue remodeling events--such as wound healing--where they might act specifically to remodel and restore the tissue architecture. This Commentary discusses the recent development in the field of collagen-binding integrins, their roles in physiological and pathological settings with special emphasis on wound healing, fibrosis and tumor-stroma interactions, and include a discussion of the most recently identified newcomers to this subfamily--integrins α10β1 and α11β1.
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Affiliation(s)
- Cédric Zeltz
- Department of Biomedicine and Centre for Cancer Biomarkers, University of Bergen, Jonas Lies vei 91, Bergen N-5009, Norway
| | - Donald Gullberg
- Department of Biomedicine and Centre for Cancer Biomarkers, University of Bergen, Jonas Lies vei 91, Bergen N-5009, Norway
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30
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Hussein HAM, Walker LR, Abdel-Raouf UM, Desouky SA, Montasser AKM, Akula SM. Beyond RGD: virus interactions with integrins. Arch Virol 2015; 160:2669-81. [PMID: 26321473 PMCID: PMC7086847 DOI: 10.1007/s00705-015-2579-8] [Citation(s) in RCA: 115] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 08/21/2015] [Indexed: 12/30/2022]
Abstract
Viruses successfully infect host cells by initially binding to the surfaces of the cells, followed by an intricate entry process. As multifunctional heterodimeric cell-surface receptor molecules, integrins have been shown to usefully serve as entry receptors for a plethora of viruses. However, the exact role(s) of integrins in viral pathogen internalization has yet to be elaborately described. Notably, several viruses harbor integrin-recognition motifs displayed on viral envelope/capsid-associated proteins. The most common of these motifs is the minimal peptide sequence for binding integrins, RGD (Arg-Gly-Asp), which is known for its role in virus infection via its ability to interact with over half of the more than 20 known integrins. Not all virus-integrin interactions are RGD-dependent, however. Non-RGD-binding integrins have also been shown to effectively promote virus entry and infection as well. Such virus-integrin binding is shown to facilitate adhesion, cytoskeleton rearrangement, integrin activation, and increased intracellular signaling. Also, we have attempted to discuss the role of carbohydrate moieties in virus interactions with receptor-like host cell surface integrins that drive the process of internalization. As much as possible, this article examines the published literature regarding the role of integrins in terms of virus infection and virus-encoded glycosylated proteins that mediate interactions with integrins, and it explores the idea of targeting these receptors as a therapeutic treatment option.
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Affiliation(s)
- Hosni A M Hussein
- Department of Microbiology and Immunology, Brody School of Medicine, East Carolina University, Greenville, NC, 27834, USA
| | - Lia R Walker
- Department of Microbiology and Immunology, Brody School of Medicine, East Carolina University, Greenville, NC, 27834, USA
| | - Usama M Abdel-Raouf
- Faculty of Science, Al Azhar University, Assiut Branch, Assiut, 71524, Egypt
| | - Sayed A Desouky
- Faculty of Science, Al Azhar University, Assiut Branch, Assiut, 71524, Egypt
| | | | - Shaw M Akula
- Department of Microbiology and Immunology, Brody School of Medicine, East Carolina University, Greenville, NC, 27834, USA.
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31
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Naci D, Vuori K, Aoudjit F. Alpha2beta1 integrin in cancer development and chemoresistance. Semin Cancer Biol 2015; 35:145-53. [PMID: 26297892 DOI: 10.1016/j.semcancer.2015.08.004] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Revised: 08/10/2015] [Accepted: 08/14/2015] [Indexed: 01/06/2023]
Abstract
Extracellular matrix, via its receptors the integrins, has emerged as a crucial factor in cancer development. The α2β1 integrin is a major collagen receptor that is widely expressed and known to promote cell migration and control tissue homeostasis. Growing evidence suggests that it can be a key pathway in cancer. Recent studies have shown that α2β1 integrin is a regulator of cancer metastasis either by promoting or inhibiting the dissemination process of cancer cells. The α2β1 integrin signaling can also enhance tumor angiogenesis. Emerging evidence supports a role for α2β1 integrin in cancer chemoresistance especially in hematological malignancies originating from the T cell lineage. In addition, α2β1 integrin has been associated with cancer stem cells. In this review, we will discuss the complex role of α2β1 integrin in these processes. Collagen is a major matrix protein of the tumor microenvironment and thus, understanding how α2β1 integrin regulates cancer pathogenesis is likely to lead to new therapeutic approaches and agents for cancer treatment.
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Affiliation(s)
- Dalila Naci
- Centre de recherche du CHU de Québec, Axe des maladies infectieuses et immunitaires and Département de Microbiologie-Immunologie, Faculté de Médecine, Université Laval, Québec, Canada
| | - Kristiina Vuori
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Fawzi Aoudjit
- Centre de recherche du CHU de Québec, Axe des maladies infectieuses et immunitaires and Département de Microbiologie-Immunologie, Faculté de Médecine, Université Laval, Québec, Canada.
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