1
|
Bartold M, Ivanovski S. Biological processes and factors involved in soft and hard tissue healing. Periodontol 2000 2024. [PMID: 38243683 DOI: 10.1111/prd.12546] [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: 09/24/2023] [Revised: 11/12/2023] [Accepted: 11/23/2023] [Indexed: 01/21/2024]
Abstract
Wound healing is a complex and iterative process involving myriad cellular and biologic processes that are highly regulated to allow satisfactory repair and regeneration of damaged tissues. This review is intended to be an introductory chapter in a volume focusing on the use of platelet concentrates for tissue regeneration. In order to fully appreciate the clinical utility of these preparations, a sound understanding of the processes and factors involved in soft and hard tissue healing. This encompasses an appreciation of the cellular and biological mediators of both soft and hard tissues in general as well as specific consideration of the periodontal tissues. In light of good advances in this basic knowledge, there have been improvements in clinical strategies and therapeutic management of wound repair and regeneration. The use of platelet concentrates for tissue regeneration offers one such strategy and is based on the principles of cellular and biologic principles of wound repair discussed in this review.
Collapse
Affiliation(s)
- Mark Bartold
- University of Queensland, Brisbane, Queensland, Australia
| | - Saso Ivanovski
- University of Queensland, Brisbane, Queensland, Australia
| |
Collapse
|
2
|
Han S, Lee MC, Rodríguez-delaRosa A, Kim J, Barroso-Zuppa M, Pineda-Rosales M, Kim SS, Hatanaka T, Yazdi IK, Bassous N, Sinha I, Pourquié O, Park S, Shin SR. Engineering Stem Cell Fate Controlling Biomaterials to Develop Muscle Connective Tissue Layered Myofibers. ADVANCED FUNCTIONAL MATERIALS 2024; 34:2304153. [PMID: 38707790 PMCID: PMC11068219 DOI: 10.1002/adfm.202304153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Indexed: 05/07/2024]
Abstract
Skeletal muscle connective tissue (MCT) surrounds myofiber bundles to provide structural support, produce force transduction from tendons, and regulate satellite cell differentiation during muscle regeneration. Engineered muscle tissue composed of myofibers layered within MCT has not yet been developed. Herein, a bioengineering strategy to create MCT-layered myofibers through the development of stem cell fate-controlling biomaterials that achieve both myogenesis and fibroblast differentiation in a locally controlled manner at the single construct is introduced. The reciprocal role of transforming growth factor-beta 1 (TGF-β1) and its inhibitor as well as 3D matrix stiffness to achieve co-differentiation of MCT fibroblasts and myofibers from a human-induced pluripotent stem cell (hiPSC)-derived paraxial mesoderm is studied. To avoid myogenic inhibition, TGF-β1 is conjugated on the gelatin-based hydrogel to control the fibroblasts' populations locally; the TGF-β1 degrades after 2 weeks, resulting in increased MCT-specific extracellular matrix (ECM) production. The locations of myofibers and fibroblasts are precisely controlled by using photolithography and co-axial wet spinning techniques, which results in the formation of MCT-layered functional myofibers in 3D constructs. This advanced engineering strategy is envisioned as a possible method for obtaining biomimetic human muscle grafts for various biomedical applications.
Collapse
Affiliation(s)
- Seokgyu Han
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA
- School of Mechanical Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Myung Chul Lee
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Alejandra Rodríguez-delaRosa
- Department of Pathology, Brigham and Women's Hospital, Boston, MA 02115, USA
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
- Harvard Stem Cell Institute, Harvard University, Boston, MA 02138, USA
| | - Jiseong Kim
- Department of Medical Biotechnology, Dongguk University, 32 Dongguk-ro, Goyang 10326, Republic of Korea
| | - Margot Barroso-Zuppa
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA
- School of Medicine and Health Sciences, Tecnologico de Monterrey, Mexico City 14380, Mexico
- School of Medicine, Boston University, 72 East Concord Street, Boston, MA 02118, USA
| | - Montserrat Pineda-Rosales
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA
- School of Engineering and Science, Tecnologico de Monterrey, Santiago de Querétaro, Querétaro 76130, Mexico
| | - Seong Soo Kim
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Takaaki Hatanaka
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA
- Future Mobility Research Department, Toyota Research Institute North America, Toyota Motor North America Inc., Ann Arbor, MI 48105, USA
| | - Iman K Yazdi
- School of Arts and Sciences, Regis College, Weston, MA 02493, USA
- LiquiGlide Inc., Cambridge, MA 02139, USA
| | - Nicole Bassous
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Indranil Sinha
- Division of Plastic Surgery, Brigham & Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Olivier Pourquié
- Department of Pathology, Brigham and Women's Hospital, Boston, MA 02115, USA
- Department of Genetics, Harvard Medical School, Boston, MA 02115, USA
- Harvard Stem Cell Institute, Harvard University, Boston, MA 02138, USA
| | - Sungsu Park
- School of Mechanical Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
| | - Su Ryon Shin
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| |
Collapse
|
3
|
Lee JH, Kim J, Kim HS, Kang YJ. Unraveling Connective Tissue Growth Factor as a Therapeutic Target and Assessing Kahweol as a Potential Drug Candidate in Triple-Negative Breast Cancer Treatment. Int J Mol Sci 2023; 24:16307. [PMID: 38003505 PMCID: PMC10671558 DOI: 10.3390/ijms242216307] [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: 08/17/2023] [Revised: 11/02/2023] [Accepted: 11/12/2023] [Indexed: 11/26/2023] Open
Abstract
Triple-negative breast cancer (TNBC) is characterized by aggressive behavior and limited treatment options, necessitating the identification of novel therapeutic targets. In this study, we investigated the clinical significance of connective tissue growth factor (CTGF) as a prognostic marker and explored the potential therapeutic effects of kahweol, a coffee diterpene molecule, in TNBC treatment. Initially, through a survival analysis on breast cancer patients from The Cancer Genome Atlas (TCGA) database, we found that CTGF exhibited significant prognostic effects exclusively in TNBC patients. To gain mechanistic insights, we performed the functional annotation and gene set enrichment analyses, revealing the involvement of CTGF in migratory pathways relevant to TNBC treatment. Subsequently, in vitro experiments using MDA-MB 231 cells, a representative TNBC cell line, demonstrated that recombinant CTGF (rCTGF) administration enhanced cell motility, whereas CTGF knockdown using CTGF siRNA resulted in reduced motility. Notably, rCTGF restored kahweol-reduced cell motility, providing compelling evidence for the role of CTGF in mediating kahweol's effects. At the molecular level, kahweol downregulated the protein expression of CTGF as well as critical signaling molecules, such as p-ERK, p-P38, p-PI3K/AKT, and p-FAK, associated with cell motility. In summary, our findings propose CTGF as a potential prognostic marker for guiding TNBC treatment and suggest kahweol as a promising antitumor compound capable of regulating CTGF expression to suppress cell motility in TNBC. These insights hold promise for the development of targeted therapies and improved clinical outcomes for TNBC patients.
Collapse
Affiliation(s)
- Jeong Hee Lee
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea; (J.H.L.); (J.K.)
| | - Jongsu Kim
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea; (J.H.L.); (J.K.)
| | - Hong Sook Kim
- Department of Biological Sciences, Sungkyunkwan University, Suwon 16419, Republic of Korea; (J.H.L.); (J.K.)
| | - Young Jin Kang
- Department of Pharmacology, College of Medicine, Yeungnam University, Daegu 42415, Republic of Korea
| |
Collapse
|
4
|
Selina PI, Alekseenko IV, Kurtova AI, Pleshkan VV, Voronezhskaya EE, Demidyuk IV, Kostrov SV. Efficiency of Promoters of Human Genes FAP and CTGF at Organism Level in a Danio rerio Model. Int J Mol Sci 2023; 24:ijms24087192. [PMID: 37108352 PMCID: PMC10138699 DOI: 10.3390/ijms24087192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/07/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
The identification of tissue-specific promoters for gene therapeutic constructs is one of the aims of complex tumor therapy. The genes encoding the fibroblast activation protein (FAP) and the connective tissue growth factor (CTGF) can function in tumor-associated stromal cells but are practically inactive in normal adult cells. Accordingly, the promoters of these genes can be used to develop vectors targeted to the tumor microenvironment. However, the efficiency of these promoters within genetic constructs remains underexplored, particularly, at the organism level. Here, we used the model of Danio rerio embryos to study the efficiency of transient expression of marker genes under the control of promoters of the FAP, CTGF, and immediate early genes of Human cytomegalovirus (CMV). Within 96 h after the injection of vectors, the CTGF and CMV promoters provided similar equal efficiency of reporter protein accumulation. In the case of the FAP promoter, a high level of reporter protein accumulation was observed only in certain zebrafish individuals that were considered developmentally abnormal. Disturbed embryogenesis was the factor of changes in the exogenous FAP promoter function. The data obtained make a significant contribution to understanding the function of the human CTGF and FAP promoters within vectors to assess their potential in gene therapy.
Collapse
Affiliation(s)
- Polina I Selina
- National Research Center "Kurchatov Institute", 123182 Moscow, Russia
| | - Irina V Alekseenko
- National Research Center "Kurchatov Institute", 123182 Moscow, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, 117997 Moscow, Russia
| | | | - Victor V Pleshkan
- National Research Center "Kurchatov Institute", 123182 Moscow, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, 117997 Moscow, Russia
| | | | - Ilya V Demidyuk
- National Research Center "Kurchatov Institute", 123182 Moscow, Russia
| | - Sergey V Kostrov
- National Research Center "Kurchatov Institute", 123182 Moscow, Russia
| |
Collapse
|
5
|
Droździk A, Droździk M. Drug-Induced Gingival Overgrowth—Molecular Aspects of Drug Actions. Int J Mol Sci 2023; 24:ijms24065448. [PMID: 36982523 PMCID: PMC10052148 DOI: 10.3390/ijms24065448] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/02/2023] [Accepted: 03/10/2023] [Indexed: 03/14/2023] Open
Abstract
Drug-induced gingival overgrowth (DIGO) is one of the side effects produced by therapeutic agents, most commonly phenytoin, nifedipine and cyclosporin A. However, the precise mechanism of DIGO is not entirely understood. A literature search of the MEDLINE/PubMed databases was conducted to identify the mechanisms involved in DIGO. The available information suggests that the pathogenesis of DIGO is multifactorial, but common pathogenic sequelae of events emerge, i.e., sodium and calcium channel antagonism or disturbed intracellular handling of calcium, which finally lead to reductions in intracellular folic acid levels. Disturbed cellular functions, mainly in keratinocytes and fibroblasts, result in increased collagen and glycosaminoglycans accumulation in the extracellular matrix. Dysregulation of collagenase activity, as well as integrins and membrane receptors, are key mechanisms of reduced degradation or excessive synthesis of connective tissue components. This manuscript describes the cellular and molecular factors involved in the epithelial–mesenchymal transition and extracellular matrix remodeling triggered by agents producing DIGO.
Collapse
Affiliation(s)
- Agnieszka Droździk
- Department of Interdisciplinary Dentistry, Pomeranian Medical University in Szczecin, Powstancow Wlkp 72, 70-111 Szczecin, Poland
| | - Marek Droździk
- Department of Pharmacology, Pomeranian Medical University in Szczecin, Powstancow Wlkp 72, 70-111 Szczecin, Poland
- Correspondence:
| |
Collapse
|
6
|
Pi L, Sun C, Jn-Simon N, Basha S, Thomas H, Figueroa V, Zarrinpar A, Cao Q, Petersen B. CCN2/CTGF promotes liver fibrosis through crosstalk with the Slit2/Robo signaling. J Cell Commun Signal 2023; 17:137-150. [PMID: 36469291 PMCID: PMC10030765 DOI: 10.1007/s12079-022-00713-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 11/14/2022] [Indexed: 12/12/2022] Open
Abstract
Liver fibrosis is the common outcome of many chronic liver diseases, resulting from altered cell-cell and cell-matrix interactions that promote hepatic stellate cell (HSC) activation and excessive matrix production. This study aimed to investigate functions of cellular communication network factor 2 (CCN2)/Connective tissue growth factor (CTGF), an extracellular signaling modulator of the CYR61/CTGF/Nov (CCN) family, in liver fibrosis. Tamoxifen-inducible conditional knockouts in mice and hepatocyte-specific deletion of this gene in rats were generated using the Cre-lox system. These animals were subjected to peri-central hepatocyte damage caused by carbon tetrachloride. Potential crosstalk of this molecule with a new profibrotic pathway mediated by the Slit2 ligand and Roundabout (Robo) receptors was also examined. We found that Ccn2/Ctgf was highly upregulated in periportal hepatocytes during carbon tetrachloride-induced hepatocyte damage, liver fibrosis and cirrhosis in mice and rats. Overexpression of this molecule was observed in human hepatocellular carcinoma (HCC) that were surrounded with fibrotic cords. Deletion of the Ccn2/Ctgf gene significantly reduced expression of fibrosis-related genes including Slit2, a smooth muscle actin (SMA) and Collagen type I during carbon tetrachloride-induced liver fibrosis in mice and rats. In addition, Ccn2/Ctgf and its truncated mutant carrying the first three domains were able to interact with the 7th -9th epidermal growth factor (EGF) repeats and the C-terminal cysteine knot (CT) motif of Slit2 protein in cultured HSC and fibrotic murine livers. Ectopic expression of Ccn2/Ctgf protein upregulated Slit2, promoted HSC activation, and potentiated fibrotic responses following chronic intoxication by carbon tetrachloride. Moreover, Ccn2/Ctgf and Slit2 synergistically enhanced activation of phosphatidylinositol 3-kinase (PI3K) and AKT in primary HSC, whereas soluble Robo1-Fc chimera protein could inhibit these activities. These observations demonstrate conserved cross-species functions of Ccn2/Ctgf protein in rodent livers. This protein can be induced in hepatocytes and contribute to liver fibrosis. Its novel connection with the Slit2/Robo signaling may have therapeutic implications against fibrosis in chronic liver disease.
Collapse
Affiliation(s)
- Liya Pi
- Department of Pathology, Tulane University, New Orleans, LA, USA.
| | - Chunbao Sun
- Department of Pathology, Tulane University, New Orleans, LA, USA
| | - Natacha Jn-Simon
- Department of Pathology, Tulane University, New Orleans, LA, USA
| | | | - Haven Thomas
- Department of Pathology, Tulane University, New Orleans, LA, USA
| | | | | | - Qi Cao
- Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Bryon Petersen
- Department of Pediatrics, University of Florida, Gainesville, FL, USA
| |
Collapse
|
7
|
Hetz R, Magaway C, Everett J, Li L, Willard BB, Freeze HH, He P. Comparative proteomics reveals elevated CCN2 in NGLY1-deficient cells. Biochem Biophys Res Commun 2022; 632:165-172. [PMID: 36209585 PMCID: PMC9677521 DOI: 10.1016/j.bbrc.2022.09.100] [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: 09/09/2022] [Revised: 09/13/2022] [Accepted: 09/25/2022] [Indexed: 01/05/2023]
Abstract
N-glycanase 1(NGLY1) catalyzes the removal of N-linked glycans from newly synthesized or misfolded protein. NGLY1 deficiency is a recently diagnosed rare genetic disorder. The affected individuals present a broad spectrum of clinical features. Recent studies explored several possible molecular mechanisms of NGLY1 deficiency including defects in proteostasis, mitochondrial homeostasis, innate immunity, and water/ion transport. We demonstrate abnormal accumulation of endoplasmic reticulum-associated degradation (ERAD) substrates in NGLY1-deficient cells. Global quantitative proteomics discovered elevated levels of endogenous proteins in NGLY1-defective human and mouse cells. Further biological validation assays confirmed the altered abundance of several key candidates that were subjected to isobarically labeled proteomic analysis. CCN2 was selected for further analysis due to its significant increase in different cell models of NGLY1 deficiency. Functional assays show elevated CCN2 and over-stimulated TGF-β signaling in NGLY1-deficient cells. Given the important role of CCN2 and TGF-β pathway in mediating systemic fibrosis, we propose a potential link of increased CCN2 and TGF-β signaling to microscopic liver fibrosis in NGLY1 patients.
Collapse
Affiliation(s)
- Rebecca Hetz
- Department of Biochemistry, Lake Erie College of Osteopathic Medicine, Erie, PA, USA
| | - Carlo Magaway
- Department of Biochemistry, Lake Erie College of Osteopathic Medicine, Erie, PA, USA
| | - Jaylene Everett
- Department of Biochemistry, Lake Erie College of Osteopathic Medicine, Erie, PA, USA
| | - Ling Li
- Proteomics and Metabolomics Core, Cleveland Clinic Lerner Research Institute, Cleveland, Ohio, USA
| | - Belinda B. Willard
- Proteomics and Metabolomics Core, Cleveland Clinic Lerner Research Institute, Cleveland, Ohio, USA
| | - Hudson H. Freeze
- Human Genetics Program, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Ping He
- Department of Biochemistry, Lake Erie College of Osteopathic Medicine, Erie, PA, USA,Correspondence: Department of Pre-Clinical Medicine, Lake Erie College of Osteopathic Medicine, 2000 West Grandview Boulevard, Room: 2-107, Erie, PA 16509, USA,
| |
Collapse
|
8
|
Lee SY. Endothelial cell‑derived connective tissue growth factor stimulates fibroblast differentiation into myofibroblasts through integrin αVβ3. Exp Ther Med 2022; 25:30. [PMID: 36561611 PMCID: PMC9748665 DOI: 10.3892/etm.2022.11730] [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: 07/15/2022] [Accepted: 10/17/2022] [Indexed: 11/27/2022] Open
Abstract
Connective tissue growth factor (CTGF) is expressed at high levels in blood vessels, where it functions as a regulator of a number of physiological processes, such as cell proliferation, angiogenesis and wound healing. In addition, CTGF has been reported to be involved in various pathological processes, such as tumor development and tissue fibrosis. However, one of the main roles of CTGF is to promote the differentiation of fibroblasts into myofibroblasts, a process that is involved in disease progression. Therefore, the present study aimed to investigate the possible mechanism by which pathological changes in the microvasculature can direct the activation of fibroblasts into myofibroblasts in the context of hypoxia/reoxygenation (H/R). Human umbilical vein endothelial cells (HUVECs) and normal human dermal fibroblasts were used in the present study. The expression levels of CTGF were determined by western blot analysis and reverse transcription-semi-quantitative PCR. To analyze the paracrine effect of HUVECs on fibroblasts, HUVECs were infected with CTGF-expressing adenovirus and then the culture supernatant of HUVECs was collected to treat fibroblasts. The formation of α-smooth muscle actin (α-SMA) stress fibers in fibroblasts were observed by immunofluorescence staining. It was found that H/R significantly increased CTGF expression in HUVECs. CTGF was also able to directly induce the differentiation of fibroblasts into myofibroblasts. In addition, the culture supernatant from CTGF-overexpressing HUVECs stimulated the formation of α-SMA stress fibers in fibroblasts, which was inhibited by treatment with a functional blocking antibody against integrin αVβ3 and to a lesser degree by a blocking antibody against α6 integrin. The mechanism of CTGF upregulation by H/R in HUVECs was then evaluated, where it was found that the CTGF protein was more stable in the H/R group compared with that in the normoxic control group. These findings suggest that CTGF expressed and secreted by vascular endothelial cells under ischemia/reperfusion conditions can exert a paracrine influence on neighboring fibroblasts, which may in turn promote myofibroblast-associated diseases. This association may hold potential as a therapeutic target.
Collapse
Affiliation(s)
- Seo-Yeon Lee
- Department of Pharmacology, Wonkwang University School of Medicine, Iksan, Jeollabuk-do 54538, Republic of Korea,Department of Biomedical Science, Wonkwang University School of Medicine, Iksan, Jeollabuk-do 54538, Republic of Korea,Correspondence to: Professor Seo-Yeon Lee, Department of Pharmacology, Wonkwang University School of Medicine, 460 Iksan-daero, Iksan, Jeollabuk-do 54538, Republic of Korea
| |
Collapse
|
9
|
CTGF Promotes the Osteoblast Differentiation of Human Periodontal Ligament Stem Cells by Positively Regulating BMP2/Smad Signal Transduction. BIOMED RESEARCH INTERNATIONAL 2022; 2022:2938015. [PMID: 36158888 PMCID: PMC9499771 DOI: 10.1155/2022/2938015] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 08/03/2022] [Indexed: 12/03/2022]
Abstract
Objective This work is aimed at revealing the role and the molecular mechanism of connective tissue growth factor 2 (CTGF) in the osteoblast differentiation of periodontal ligament stem cells (PDLSCs). Methods The osteogenic differentiation of PDLSCs was induced by osteogenic induction medium (OM), and the expression level of osteogenic related proteins ALP, RUNX2, OCN, and CTGF was estimated using quantitative real-time polymerase chain reaction (qRT-PCR) and Western blotting analysis. We constructed cell lines with CTGF overexpression or knockdown to verify the role of CTGF in the osteoblast differentiation of PDLSCs. Alkaline phosphatase (ALP) staining was introduced to measure the osteoblasts activity, and alizarin red S (ARS) staining was employed to test matrix mineralization. The interaction between CTGF and bone morphogenetic protein-2 (BMP-2) was determined by endogenous coimmunoprecipitation (Co-IP). Results The expression level of CTGF was increased during the osteogenic induction of PDLSCs. Additionally, CTGF overexpression effectively maintained the stemness and facilitated the osteoblast differentiation in PDLSCs, and CTGF knockdown exerted opposite effects. Moreover, at molecular mechanism, CTGF increased the activity of BMP-2/Smad signaling pathway. Conclusion This investigation verified that CTGF promotes the osteoblast differentiation in PDLSCs at least partly by activating BMP-2/Smad cascade signal.
Collapse
|
10
|
Initial Assessment of Gingival Biotype as a Potential Source of Variability in the Migration, Contraction and Gene Expression of Fibroblasts. Arch Oral Biol 2022; 144:105554. [DOI: 10.1016/j.archoralbio.2022.105554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/22/2022] [Accepted: 09/23/2022] [Indexed: 11/22/2022]
|
11
|
Fu M, Peng D, Lan T, Wei Y, Wei X. Multifunctional regulatory protein connective tissue growth factor (CTGF): A potential therapeutic target for diverse diseases. Acta Pharm Sin B 2022; 12:1740-1760. [PMID: 35847511 PMCID: PMC9279711 DOI: 10.1016/j.apsb.2022.01.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/22/2021] [Accepted: 12/16/2021] [Indexed: 12/24/2022] Open
Abstract
Connective tissue growth factor (CTGF), a multifunctional protein of the CCN family, regulates cell proliferation, differentiation, adhesion, and a variety of other biological processes. It is involved in the disease-related pathways such as the Hippo pathway, p53 and nuclear factor kappa-B (NF-κB) pathways and thus contributes to the developments of inflammation, fibrosis, cancer and other diseases as a downstream effector. Therefore, CTGF might be a potential therapeutic target for treating various diseases. In recent years, the research on the potential of CTGF in the treatment of diseases has also been paid more attention. Several drugs targeting CTGF (monoclonal antibodies FG3149 and FG3019) are being assessed by clinical or preclinical trials and have shown promising outcomes. In this review, the cellular events regulated by CTGF, and the relationships between CTGF and pathogenesis of diseases are systematically summarized. In addition, we highlight the current researches, focusing on the preclinical and clinical trials concerned with CTGF as the therapeutic target.
Collapse
|
12
|
Hashiguchi S, Tanaka T, Mano R, Kondo S, Kodama S. CCN2-induced lymphangiogenesis is mediated by the integrin αvβ5-ERK pathway and regulated by DUSP6. Sci Rep 2022; 12:926. [PMID: 35042954 PMCID: PMC8766563 DOI: 10.1038/s41598-022-04988-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 01/05/2022] [Indexed: 12/20/2022] Open
Abstract
Lymphangiogenesis is essential for the development of the lymphatic system and is important for physiological processes such as homeostasis, metabolism and immunity. Cellular communication network factor 2 (CCN2, also known as CTGF), is a modular and matricellular protein and a well-known angiogenic factor in physiological and pathological angiogenesis. However, its roles in lymphangiogenesis and intracellular signaling in lymphatic endothelial cells (LECs) remain unclear. Here, we investigated the effects of CCN2 on lymphangiogenesis. In in vivo Matrigel plug assays, exogenous CCN2 increased the number of Podoplanin-positive vessels. Subsequently, we found that CCN2 induced phosphorylation of ERK in primary cultured LECs, which was almost completely inhibited by the blockade of integrin αvβ5 and partially decreased by the blockade of integrin αvβ3. CCN2 promoted direct binding of ERK to dual-specific phosphatase 6 (DUSP6), which regulated the activation of excess ERK by dephosphorylating ERK. In vitro, CCN2 promoted tube formation in LECs, while suppression of Dusp6 further increased tube formation. In vivo, immunohistochemistry also detected ERK phosphorylation and DUSP6 expression in Podoplanin-positive cells on CCN2-supplemented Matrigel. These results indicated that CCN2 promotes lymphangiogenesis by enhancing integrin αvβ5-mediated phosphorylation of ERK and demonstrated that DUSP6 is a negative regulator of excessive lymphangiogenesis by CCN2.
Collapse
Affiliation(s)
- Shiho Hashiguchi
- Department of Oral Surgery, Faculty of Medicine, Fukuoka University, Fukuoka, Japan.,Department of Regenerative Medicine and Transplantation, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Tomoko Tanaka
- Department of Regenerative Medicine and Transplantation, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Ryosuke Mano
- Department of Oral Surgery, Faculty of Medicine, Fukuoka University, Fukuoka, Japan.,Department of Regenerative Medicine and Transplantation, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Seiji Kondo
- Department of Oral Surgery, Faculty of Medicine, Fukuoka University, Fukuoka, Japan
| | - Shohta Kodama
- Department of Regenerative Medicine and Transplantation, Faculty of Medicine, Fukuoka University, Fukuoka, Japan.
| |
Collapse
|
13
|
Zaykov V, Chaqour B. The CCN2/CTGF interactome: an approach to understanding the versatility of CCN2/CTGF molecular activities. J Cell Commun Signal 2021; 15:567-580. [PMID: 34613590 DOI: 10.1007/s12079-021-00650-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 09/23/2021] [Indexed: 01/16/2023] Open
Abstract
Cellular communication network 2 (CCN2), also known as connective tissue growth factor (CTGF) regulates diverse cellular processes, some at odds with others, including adhesion, proliferation, apoptosis, and extracellular matrix (ECM) protein synthesis. Although a cause-and-effect relationship between CCN2/CTGF expression and local fibrotic reactions has initially been established, CCN2/CTGF manifests cell-, tissue-, and context-specific functions and differentially affects developmental and pathological processes ranging from progenitor cell fate decisions and angiogenesis to inflammation and tumorigenesis. CCN2/CTGF multimodular structure, binding to and activation or inhibition of multiple cell surface receptors, growth factors and ECM proteins, and susceptibility for proteolytic cleavage highlight the complexity to CCN2/CTGF biochemical attributes. CCN2/CTGF expression and dosage in the local environment affects a defined community of its interacting partners, and this results in sequestration of growth factors, interference with or potentiation of ligand-receptor binding, cellular internalization of CCN2/CTGF, inhibition or activation of proteases, and generation of CCN2/CTGF degradome products that add molecular diversity and expand the repertoire of functional modules in the cells and their microenvironment. Through these interactions, different intracellular signals and cellular responses are elicited culminating into physiological or pathological reactions. Thus, the CCN2/CTGF interactome is a defining factor of its tissue- and context-specific effects. Mapping of new CCN2/CTGF binding partners might shed light on yet unknown roles of CCN2/CTGF and provide a solid basis for tissue-specific targeting this molecule or its interacting partners in a therapeutic context.
Collapse
Affiliation(s)
- Viktor Zaykov
- Department of Cell Biology, State University of New York (SUNY), Downstate Health Science University, 450 Clarkson Avenue, MSC 5, Brooklyn, NY, 11203, USA
| | - Brahim Chaqour
- Department of Cell Biology, State University of New York (SUNY), Downstate Health Science University, 450 Clarkson Avenue, MSC 5, Brooklyn, NY, 11203, USA. .,Department of Ophthalmology, State University of New York (SUNY), Downstate Health Science University, 450 Clarkson Avenue, MSC 5, Brooklyn, NY, 11203, USA.
| |
Collapse
|
14
|
Fraunhoffer NA, Closa D, Folch-Puy E, Abuelafia AM, Calvo EL, Chuluyan E, Iovanna J. Targeting REG3β limits pancreatic ductal adenocarcinoma progression through CTGF downregulation. Cancer Lett 2021; 521:64-70. [PMID: 34450197 DOI: 10.1016/j.canlet.2021.08.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 08/03/2021] [Accepted: 08/19/2021] [Indexed: 10/20/2022]
Abstract
The crosstalk between the transformed tumoral cells and their microenvironment is a key aspect for pancreatic ductal adenocarcinoma (PDAC) progression. This molecular dialog is intensively studied because it may result in an efficient therapeutic target. Contrary to this near microenvironment, the stromal portion in direct contact with the transformed cells, a far microenvironment, placed at the periphery of the tumor mass, produces factors signaling tumors. Among these factors, REG3β, produced by this part of the pancreas, is an important factor in promoting tumor progression. This paper demonstrated that targeting REG3β protein with specific antibodies limits the PDAC tumor growth in an orthotopic, syngeneic mice model induced by injection of Panc02 cells. Then, we showed that CTGF is over-expressed in response to REG3β in PDAC-derived cells. Moreover, inactivation of REG3β by treating tumors with anti-REG3β antibodies results in a strong decrease of CTGF in PDAC tumors. Lastly, we demonstrated that forced expression of CTGF in xenografted Panc02 cells abolishes the therapeutic effect of the anti-REG3β antibody treatment. Altogether, these results indicate that the effect of REG3β in promoting PDAC progression is mediated by CTGF over-activation. Thus, REG3β is a promising therapeutic target to treat PDAC with an original rationale. In conclusion, we demonstrated that the far microenvironment is essential for PDAC progression by producing active secretory factors, and some of them could be used as therapeutic targets.
Collapse
Affiliation(s)
- Nicolás A Fraunhoffer
- Centre de Recherche en Cancérologie de Marseille (CRCM), INSERM U1068, CNRS UMR 7258, Aix-Marseille Université and Institut Paoli-Calmettes, Parc Scientifique et Technologique de Luminy, 163 Avenue de Luminy, 13288, Marseille, France; Laboratory of Immunomodulators, School of Medicine, Centro de Estudios Farmacológicos y Botánicos (CEFYBO), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), University of Buenos Aires, Buenos Aires, Argentina
| | - Daniel Closa
- Experimental Pathology Department, Institut d'Investigacions Biomèdiques de Barcelona-Consejo Superior de Investigaciones Científicas (IIBB-CSIC), 08036, Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036, Barcelona, Spain
| | - Emma Folch-Puy
- Experimental Pathology Department, Institut d'Investigacions Biomèdiques de Barcelona-Consejo Superior de Investigaciones Científicas (IIBB-CSIC), 08036, Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036, Barcelona, Spain
| | - Analía Meilerman Abuelafia
- Centre de Recherche en Cancérologie de Marseille (CRCM), INSERM U1068, CNRS UMR 7258, Aix-Marseille Université and Institut Paoli-Calmettes, Parc Scientifique et Technologique de Luminy, 163 Avenue de Luminy, 13288, Marseille, France
| | - Ezequiel Luis Calvo
- Centre Génomique du Centre de Recherche du CHUL Research Center, Ville de Québec, Quebec, Canada
| | - Eduardo Chuluyan
- Laboratory of Immunomodulators, School of Medicine, Centro de Estudios Farmacológicos y Botánicos (CEFYBO), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), University of Buenos Aires, Buenos Aires, Argentina
| | - Juan Iovanna
- Centre de Recherche en Cancérologie de Marseille (CRCM), INSERM U1068, CNRS UMR 7258, Aix-Marseille Université and Institut Paoli-Calmettes, Parc Scientifique et Technologique de Luminy, 163 Avenue de Luminy, 13288, Marseille, France.
| |
Collapse
|
15
|
Edwards P, Kang BW, Chau I. Targeting the Stroma in the Management of Pancreatic Cancer. Front Oncol 2021; 11:691185. [PMID: 34336679 PMCID: PMC8316993 DOI: 10.3389/fonc.2021.691185] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 06/30/2021] [Indexed: 12/12/2022] Open
Abstract
Pancreatic cancer (PC) presents extremely aggressive tumours and is associated with poor survival. This is attributed to the unique features of the tumour microenvironment (TME), which is known to create a dense stromal formation and poorly immunogenic condition. In particular, the TME of PC, including the stromal cells and extracellular matrix, plays an essential role in the progression and chemoresistance of PC. Consequently, several promising agents that target key components of the stroma have already been developed and are currently in multiple stages of clinical trials. Therefore, the authors review the latest available evidence on novel stroma-targeting approaches, highlighting the potential impact of the stroma as a key component of the TME in PC.
Collapse
Affiliation(s)
- Penelope Edwards
- Department of Medicine, Royal Marsden Hospital, London, United Kingdom
| | - Byung Woog Kang
- Department of Oncology/Hematology, Kyungpook National University Hospital, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Ian Chau
- Department of Medicine, Royal Marsden Hospital, London, United Kingdom
| |
Collapse
|
16
|
Nikoloudaki G. Functions of Matricellular Proteins in Dental Tissues and Their Emerging Roles in Orofacial Tissue Development, Maintenance, and Disease. Int J Mol Sci 2021; 22:ijms22126626. [PMID: 34205668 PMCID: PMC8235165 DOI: 10.3390/ijms22126626] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/16/2021] [Accepted: 06/17/2021] [Indexed: 01/04/2023] Open
Abstract
Matricellular proteins (MCPs) are defined as extracellular matrix (ECM) associated proteins that are important regulators and integrators of microenvironmental signals, contributing to the dynamic nature of ECM signalling. There is a growing understanding of the role of matricellular proteins in cellular processes governing tissue development as well as in disease pathogenesis. In this review, the expression and functions of different MP family members (periostin, CCNs, TSPs, SIBLINGs and others) are presented, specifically in relation to craniofacial development and the maintenance of orofacial tissues, including bone, gingiva, oral mucosa, palate and the dental pulp. As will be discussed, each MP family member has been shown to have non-redundant roles in development, tissue homeostasis, wound healing, pathology and tumorigenesis of orofacial and dental tissues.
Collapse
Affiliation(s)
- Georgia Nikoloudaki
- Schulich Dentistry Department, Schulich School of Medicine and Dentistry, Western University, London, ON N6A 5C1, Canada; ; Tel.: +1-519-661-2111 (ext. 81102)
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, Western University, London, ON N6A 5C1, Canada
| |
Collapse
|
17
|
Mussa BM, Khan AA, Srivastava A, Abdallah SH. Differentiated PDGFRα-Positive Cells: A Novel In-Vitro Model for Functional Studies of Neuronal Nitric Oxide Synthase. Int J Mol Sci 2021; 22:ijms22073514. [PMID: 33805311 PMCID: PMC8037384 DOI: 10.3390/ijms22073514] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 03/12/2021] [Accepted: 03/25/2021] [Indexed: 12/16/2022] Open
Abstract
It is evident that depletion of interstitial cells and dysfunction of nitric oxide (NO) pathways are key players in development of several gastrointestinal (GI) motility disorders such as diabetic gastroparesis (DGP). One of the main limitations of DGP research is the lack of isolation methods that are specific to interstitial cells, and therefore conducting functional studies is not feasible. The present study aims (i) to differentiate telomerase transformed mesenchymal stromal cells (iMSCs) into platelet-derived growth factor receptor-α-positive cells (PDGFRα-positive cells) using connective tissue growth factor (CTGF) and L-ascorbic acids; (ii) to investigate the effects of NO donor and inhibitor on the survival rate of differentiated PDGFRα-positive cells; and (iii) to evaluate the impact of increased glucose concentrations, mimicking diabetic hyperglycemia, on the gene expression of neuronal nitric oxide synthase (nNOS). A fibroblastic differentiation-induction medium supplemented with connective tissue growth factor was used to differentiate iMSCs into PDGFRα-positive cells. The medium was changed every day for 21 days to maintain the biological activity of the growth factors. Gene and protein expression, scanning electron and confocal microscopy, and flow cytometry analysis of several markers were conducted to confirm the differentiation process. Methyl tetrazolium cell viability, nitrite measurement assays, and immunostaining were used to investigate the effects of NO on PDGFRα-positive cells. The present study, for the first time, demonstrated the differentiation of iMSCs into PDGFRα-positive cells. The outcomes of the functional studies showed that SNAP (NO donor) increased the survival rate of differentiated PDGFRα-positive cells whereas LNNA (NO inhibitor) attenuated these effects. Further experimentations revealed that hyperglycemia produced a significant increase in expression of nNOS in PDGFRα-positive cells. Differentiation of iMSCs into PDGFRα-positive cells is a novel model to conduct functional studies and to investigate the involvement of NO pathways. This will help in identifying new therapeutic targets for treatment of DGP.
Collapse
Affiliation(s)
- Bashair M. Mussa
- Basic Medical Sciences Department, College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates
- Correspondence: ; Tel.: +971-65057220
| | - Amir Ali Khan
- Department of Applied Biology, College of Science, University of Sharjah, Sharjah 27272, United Arab Emirates;
| | - Ankita Srivastava
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah 27272, United Arab Emirates;
| | - Sallam Hasan Abdallah
- Research Institute of Sciences & Engineering, University of Sharjah, Sharjah 27272, United Arab Emirates;
| |
Collapse
|
18
|
Shetty R, Kumar NR, Subramani M, Krishna L, Murugeswari P, Matalia H, Khamar P, Dadachanji ZV, Mohan RR, Ghosh A, Das D. Safety and efficacy of combination of suberoylamilide hydroxyamic acid and mitomycin C in reducing pro-fibrotic changes in human corneal epithelial cells. Sci Rep 2021; 11:4392. [PMID: 33623133 PMCID: PMC7902619 DOI: 10.1038/s41598-021-83881-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 02/01/2021] [Indexed: 12/14/2022] Open
Abstract
Corneal haze post refractive surgery is prevented by mitomycin c (MMC) treatment though it can lead to corneal endothelial damage, persistent epithelial defects and necrosis of cells. Suberanilohydroxamic acid (SAHA) however has been proposed to prevent corneal haze without any adverse effects. For clinical application we have investigated the short and long term outcome of cells exposed to SAHA. Human donor cornea, cultured limbal epithelial cells, corneal rims and lenticules were incubated with SAHA and MMC. The cells/tissue was then analyzed by RT-qPCR, immunofluorescence and western blot for markers of apoptosis and fibrosis. The results reveal that short term exposure of SAHA and SAHA + MMC reduced apoptosis levels and increased αSMA expression compared to those treated with MMC. Epithelial cells derived from cultured corneal rim that were incubated with the MMC, SAHA or MMC + SAHA revealed enhanced apoptosis, reduced levels of CK3/CK12, ∆NP63 and COL4A compared to other treatments. In SAHA treated lenticules TGFβ induced fibrosis was reduced. The results imply that MMC treatment for corneal haze has both short term and long term adverse effects on cells and the cellular properties. However, a combinatorial treatment of SAHA + MMC prevents expression of corneal fibrotic markers without causing any adverse effect on cellular properties.
Collapse
Affiliation(s)
- Rohit Shetty
- Department of Cornea and Refractive Surgery, Narayana Nethralaya Eye Hospital, Bangalore, Karnataka, India
| | - Nimisha Rajiv Kumar
- GROW Laboratory, Narayana Nethralaya Post Graduate Institute of Ophthalmology, Narayana Nethralaya Foundation, Narayana Nethralaya, Narayana Health City, Bommasandra, , Bangalore, Karnataka, 560 099, India
| | - Murali Subramani
- Stem Cell Research Lab, GROW Laboratory, Narayana Nethralaya Foundation, Narayana Nethralaya, Bangalore, Karnataka, India
| | - Lekshmi Krishna
- Stem Cell Research Lab, GROW Laboratory, Narayana Nethralaya Foundation, Narayana Nethralaya, Bangalore, Karnataka, India
| | - Ponnalagu Murugeswari
- Stem Cell Research Lab, GROW Laboratory, Narayana Nethralaya Foundation, Narayana Nethralaya, Bangalore, Karnataka, India
| | - Himanshu Matalia
- Department of Cornea and Refractive Surgery, Narayana Nethralaya Eye Hospital, Bangalore, Karnataka, India
| | - Pooja Khamar
- Department of Cornea and Refractive Surgery, Narayana Nethralaya Eye Hospital, Bangalore, Karnataka, India
| | - Zelda V Dadachanji
- Department of Cornea and Refractive Surgery, Narayana Nethralaya Eye Hospital, Bangalore, Karnataka, India
| | - Rajiv R Mohan
- Department of Veterinary Medicine and Surgery, University of Missouri, Columbia, MO, 65211, USA. .,Mason Eye Institute, School of Medicine, University of Missouri, Columbia, MO, 65212, USA. .,Harry S Truman Veterans' Memorial Hospital, Columbia, MO, 65201, USA.
| | - Arkasubhra Ghosh
- GROW Laboratory, Narayana Nethralaya Post Graduate Institute of Ophthalmology, Narayana Nethralaya Foundation, Narayana Nethralaya, Narayana Health City, Bommasandra, , Bangalore, Karnataka, 560 099, India.
| | - Debashish Das
- Stem Cell Research Lab, GROW Laboratory, Narayana Nethralaya Foundation, Narayana Nethralaya, Bangalore, Karnataka, India.
| |
Collapse
|
19
|
Chen Z, Zhang N, Chu HY, Yu Y, Zhang ZK, Zhang G, Zhang BT. Connective Tissue Growth Factor: From Molecular Understandings to Drug Discovery. Front Cell Dev Biol 2020; 8:593269. [PMID: 33195264 PMCID: PMC7658337 DOI: 10.3389/fcell.2020.593269] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 10/09/2020] [Indexed: 01/18/2023] Open
Abstract
Connective tissue growth factor (CTGF) is a key signaling and regulatory molecule involved in different biological processes, such as cell proliferation, angiogenesis, and wound healing, as well as multiple pathologies, such as tumor development and tissue fibrosis. Although the underlying mechanisms of CTGF remain incompletely understood, a commonly accepted theory is that the interactions between different protein domains in CTGF and other various regulatory proteins and ligands contribute to its variety of functions. Here, we highlight the structure of each domain of CTGF and its biology functions in physiological conditions. We further summarized main diseases that are deeply influenced by CTGF domains and the potential targets of these diseases. Finally, we address the advantages and disadvantages of current drugs targeting CTGF and provide the perspective for the drug discovery of the next generation of CTGF inhibitors based on aptamers.
Collapse
Affiliation(s)
- Zihao Chen
- School of Chinese Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Ning Zhang
- School of Chinese Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Hang Yin Chu
- Law Sau Fai Institute for Advancing Translational Medicine in Bone and Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China
| | - Yuanyuan Yu
- Law Sau Fai Institute for Advancing Translational Medicine in Bone and Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China
| | - Zong-Kang Zhang
- School of Chinese Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Ge Zhang
- Law Sau Fai Institute for Advancing Translational Medicine in Bone and Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China
| | - Bao-Ting Zhang
- School of Chinese Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| |
Collapse
|
20
|
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.
Collapse
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
| | | |
Collapse
|
21
|
Chen Z, Li X, Jin J, Zhou W, Chen J, Fok KL. Connective tissue growth factor mediates mouse spermatogonial migration associated with differentiation. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2020; 1867:118708. [PMID: 32240712 DOI: 10.1016/j.bbamcr.2020.118708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 02/26/2020] [Accepted: 03/24/2020] [Indexed: 10/24/2022]
Abstract
Spermatogonia migrate to the microenvironment during the establishment from gonocytes and leave it when they differentiate. However, the mechanisms underlying the regulation of spermatogonial differentiation-associated migration remain mostly unknown. In this study, we show that spermatogonial differentiation induced by retinoic acid (RA) was accompanied with increased migration ability and elevated expression of connective tissue growth factor (CTGF), a member of the CCN family. CTGF was mainly expressed in the testicular somatic cells and committed spermatogonial progenitors. Recombinant CTGF (rCTGF) promoted the spermatogonial migration and silencing of endogenous CTGF suppressed the migration of homogenous spermatogonial cell lines. Moreover, depletion of CTGF by neutralizing antibody inhibited the elevated migration ability induced by RA, suggesting both the paracrine and autocrine roles of CTGF in spermatogonial migration associated with differentiation. Finally, CTGF interacted with β1-integrin and regulated its level in spermatogonial cell lines. Together, our study provides novel insights into the regulation of spermatogonial migration by CTGF, which may shed light on the diagnosis and treatment of male infertility.
Collapse
Affiliation(s)
- Ziyi Chen
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - Xiaofeng Li
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - Jing Jin
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - Wei Zhou
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - Junjiang Chen
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - Kin Lam Fok
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong Special Administrative Region; School of Biomedical Sciences Core Laboratory, Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China.
| |
Collapse
|
22
|
Shi J, Huo R, Li N, Li H, Zhai T, Li H, Shen B, Ye J, Fu R, Di W. CYR61, a potential biomarker of tumor inflammatory response in epithelial ovarian cancer microenvironment of tumor progress. BMC Cancer 2019; 19:1140. [PMID: 31766991 PMCID: PMC6878653 DOI: 10.1186/s12885-019-6321-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Accepted: 10/31/2019] [Indexed: 01/14/2023] Open
Abstract
Background Recent studies have found that inflammatory response is involved in the pathogenesis of ovarian cancer. Advanced ovarian cancer is often presented with ascites that is rich in cytokines, inflammatory factors or cancer cells. Therefore, it is important to study the microenvironment of ascites in order to further clarify the occurrence and progression of ovarian cancer. As a pro-inflammatory factor, the Cyr61 expression patterns are inconsistent in human tumors. Although it has been reported that Cyr61 is related to the progression of ovarian cancer, its specific mechanism is not yet clear. This study sought to evaluate the Cyr61 levels of ascites, serum and different tissues of ovarian cancer to explore the potential association of Cyr61with the tumor-associated inflammatory microenvironment of EOC. Methods Tumor specimens were procured from patients with ovarian serous cystadenocarcinoma and ovarian serous cystadenoma. Cyr61 and IL-6 levels of serum or ascites were determined by ELISA (Enzyme-Linked ImmunoSorbent Assay), while Cyr61 expressions of different ovarian tumor tissues were evaluated by IHC (Immunohistochemistry). Then the correlation of Cyr61 level in ascites with clinicopathologic features was analyzed. And other laboratory data were obtained from medical records. Results Both in ascites and serum, significantly higher Cyr61 levels were found in ovarian serous cystadenocarcinoma. In malignant ascites, higher Cyr61 level of ovarian serous cystadenocarcinoma was more closely associated with FIGO stage, initial tumor size > 10 cm and the residual tumor size. And the increased IL-6 level was linearly related to Cyr61 level. Moreover, the serum levels of Cyr61, IL-6 and CRP in advanced stage of ovarian cancer were much higher than those in early stage. Lastly, the IHC data demonstrate that Cyr61 expression of ovarian serous adenocarcinoma was higher than that of ovarian serous cystadenoma, but it was lower than the paired metastatic lesions. Conclusions As a pro-inflammatory factor, increased ascites Cyr61 level is associated with FIGO stage, initial tumor size > 10 cm and the residual tumor size. Moreover, serum Cyr61 may be used as a potential marker for EOC inflammatory response. Finally, Cyr61 may be involved in the process of tumor metastasis and progression by producing IL-6 and CRP in the EOC inflammatory microenvironment.
Collapse
Affiliation(s)
- Jun Shi
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200127, China.,Shanghai Key Laboratory of Gynecologic Oncology, Shanghai, 200127, People's Republic of China
| | - Rongfen Huo
- Shanghai Institute of Immunology, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200025, China
| | - Ningli Li
- Shanghai Institute of Immunology, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200025, China
| | - Haichuan Li
- Shanghai Institute of Immunology, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200025, China
| | - Tianhang Zhai
- Shanghai Institute of Immunology, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200025, China
| | - Huidan Li
- Shanghai Institute of Immunology, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200025, China
| | - Baihua Shen
- Shanghai Institute of Immunology, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200025, China
| | - Jing Ye
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200127, China.,Shanghai Key Laboratory of Gynecologic Oncology, Shanghai, 200127, People's Republic of China
| | - Ruojin Fu
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200127, China.,Shanghai Key Laboratory of Gynecologic Oncology, Shanghai, 200127, People's Republic of China
| | - Wen Di
- Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200127, China. .,Shanghai Key Laboratory of Gynecologic Oncology, Shanghai, 200127, People's Republic of China.
| |
Collapse
|
23
|
Wang S, Gao J, Wang M, Chen L, Zhang X, Wang X. Anti-inflammatory effect of adipose-derived stem cells in the treatment of pelvic organ prolapse. J Int Med Res 2019; 47:6303-6314. [PMID: 31741397 PMCID: PMC7045653 DOI: 10.1177/0300060519873472] [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] [Indexed: 11/17/2022] Open
Abstract
Objective This study investigated the effect of recombinant human connective tissue growth factor (hCTGF) on rat adipose-derived stem cells (ADSCs) and explored the feasibility of using ADSCs to treat pelvic organ prolapse. Methods ADSCs were isolated from rat inguinal adipose tissue and characterized by flow cytometry and for osteogenic and adipogenic differentiation. ADSCs were treated with recombinant hCTGF and qRT-PCR was performed to detect collagen I and III expression on post-treatment days 7, 14, and 28. Osteogenic and adipogenic differentiation of ADSCs was performed to evaluate the effect of hCTGF. ADSCs were seeded in biological grafting materials, acellular porcine pericardium (APP) and acellular bovine pericardium (ABP), then implanted in the rat vagina. Histology was performed to observe inflammation among different groups. Results Collagen I and III expression in ADSCs was significantly increased, and the ability to differentiate into osteogenic and adipogenic lineages was diminished after hCTGF treatment. APP and ABP seeded with ADSCs significantly decreased inflammation and protected from degradation in vivo compared with APP and ABP only; ABP seeded with ADSCs had the lowest inflammation. Conclusion hCTGF regulates collagen I and III expression and induces ADSC differentiation in vitro. ADSCs decrease inflammation associated with APP and ABP in vivo.
Collapse
Affiliation(s)
- Su Wang
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Jian Gao
- Department of General Surgery, Panyu Central Hospital, Guangzhou, China
| | - Maohuai Wang
- The First Affiliated Hospital of Gannan Medical College, Jiangxi, China
| | - Liquan Chen
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xiaowei Zhang
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xiaoyu Wang
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Jinan University, Guangzhou, China
| |
Collapse
|
24
|
Lafaro KJ, Melstrom LG. The Paradoxical Web of Pancreatic Cancer Tumor Microenvironment. THE AMERICAN JOURNAL OF PATHOLOGY 2019; 189:44-57. [PMID: 30558722 DOI: 10.1016/j.ajpath.2018.09.009] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 08/28/2018] [Accepted: 09/25/2018] [Indexed: 02/07/2023]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is increasing in incidence and is projected to become the second leading cause of cancer death in the United States. Despite significant advances in understanding the disease, there has been minimal increase in PDAC patient survival. PDAC tumors are unique in the fact that there is significant desmoplasia. This generates a large stromal compartment composed of immune cells, inflammatory cells, growth factors, extracellular matrix, and fibroblasts, comprising the tumor microenvironment (TME), which may represent anywhere from 15% to 85% of the tumor. It has become evident that the TME, including both the stroma and extracellular component, plays an important role in tumor progression and chemoresistance of PDAC. This review will discuss the multiple components of the TME, their specific impact on tumorigenesis, and the multiple therapeutic targets.
Collapse
Affiliation(s)
- Kelly J Lafaro
- Department of Surgery, City of Hope National Medical Center, Duarte, California
| | - Laleh G Melstrom
- Department of Surgery, City of Hope National Medical Center, Duarte, California.
| |
Collapse
|
25
|
Pal-Ghosh S, Tadvalkar G, Lieberman VR, Guo X, Zieske JD, Hutcheon A, Stepp MA. Transient Mitomycin C-treatment of human corneal epithelial cells and fibroblasts alters cell migration, cytokine secretion, and matrix accumulation. Sci Rep 2019; 9:13905. [PMID: 31554858 PMCID: PMC6761181 DOI: 10.1038/s41598-019-50307-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 08/31/2019] [Indexed: 12/15/2022] Open
Abstract
A single application of Mitomycin C (MMC) is used clinically in ophthalmology to reduce scarring and enhance wound resolution after surgery. Here we show in vitro that a 3-hour MMC treatment of primary and telomerase immortalized human corneal limbal epithelial (HCLE) cells impacts their migration and adhesion. Transient MMC treatment induces HCLE expression of senescence associated secretory factors, cytokine secretion, and deposition of laminin 332 for several days. Transient MMC treatment also reduces migration and deposition of transforming growth factor-β1 (TGFβ1)-stimulated collagen by corneal fibroblasts. Using conditioned media from control and MMC treated cells, we demonstrate that factors secreted by MMC-treated corneal epithelial cells attenuate collagen deposition by HCFs whereas those secreted by MMC-treated HCFs do not. These studies are the first to probe the roles played by corneal epithelial cells in reducing collagen deposition by corneal fibroblasts in response to MMC.
Collapse
Affiliation(s)
- Sonali Pal-Ghosh
- George Washington University School of Medicine and Health Sciences, Department of Anatomy and Cell Biology, 2300 I St. NW, Washington, DC, 20037, USA
| | - Gauri Tadvalkar
- George Washington University School of Medicine and Health Sciences, Department of Anatomy and Cell Biology, 2300 I St. NW, Washington, DC, 20037, USA
| | - Verna Rose Lieberman
- George Washington University School of Medicine and Health Sciences, Department of Anatomy and Cell Biology, 2300 I St. NW, Washington, DC, 20037, USA
| | - Xiaoqing Guo
- Schepens Eye Research Institute/Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, 20 Staniford St, Boston, MA, 02114-2500, USA
| | - James D Zieske
- Schepens Eye Research Institute/Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, 20 Staniford St, Boston, MA, 02114-2500, USA
| | - Audrey Hutcheon
- Schepens Eye Research Institute/Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, 20 Staniford St, Boston, MA, 02114-2500, USA
| | - Mary Ann Stepp
- George Washington University School of Medicine and Health Sciences, Department of Anatomy and Cell Biology, 2300 I St. NW, Washington, DC, 20037, USA. .,George Washington University School of Medicine and Health Sciences, Department of Ophthalmology, 2300 I St. NW, Washington, DC, 20037, USA.
| |
Collapse
|
26
|
Identification of the Transcriptional Networks and the Involvement in Angiotensin II-Induced Injury after CRISPR/Cas9-Mediated Knockdown of Cyr61 in HEK293T Cells. Mediators Inflamm 2019; 2019:8697257. [PMID: 31148949 PMCID: PMC6501185 DOI: 10.1155/2019/8697257] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 02/14/2019] [Indexed: 02/07/2023] Open
Abstract
Background The transcriptional networks of Cyr61 and its function in cell injury are poorly understood. The present study depicted the lncRNA and mRNA profiles and the involvement in angiotensin II-induced injury after Cyr61 knockdown mediated by CRISPR/Cas9 in HEK293T cells. Methods HEK293T cells were cultured, and Cyr61 knockdown was achieved by transfection of the CRISPR/Cas9 KO plasmid. lncRNA and mRNA microarrays were used to identify differentially expressed genes (DEGs). Gene ontology (GO) and the Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses were performed to determine biofunctions and signaling pathways. RT-PCR was used to validate the microarray results. Cells were divided into four groups: control, Cyr61 knockdown, angiotensin II (Ang II) without Cyr61 knockdown, and Ang II with Cyr61 knockdown. CCK8, western blotting, and flow cytometry analysis were carried out to dissect cellular function. Results A total of 23184 lncRNAs and 28264 mRNAs were normalized. 26 lncRNAs and 212 mRNAs were upregulated, and 74 lncRNAs and 233 mRNAs were downregulated after Cyr61 knockdown. Analysis of cellular components, molecular functions, biological processes, and regulatory pathways associated with the differentially expressed mRNAs revealed downstream mechanisms of the Cyr61 gene. The differentially expressed genes were affected for small cell lung cancer, axon guidance, Fc gamma R-mediated phagocytosis, MAPK signaling pathway, focal adhesion, insulin resistance, and metabolic pathways. In addition, Cyr61 expression was increased in accordance with induction of cell cycle arrest and apoptosis and inhibition of cell proliferation induced by Ang II. Knockdown of Cyr61 in HEK293T cells promoted cell cycle procession, decreased apoptosis, and promoted cell proliferation. Conclusions The Cyr61 gene is involved in Ang II-induced injury in HEK293T cells. Functional mechanisms of the differentially expressed lncRNAs and mRNAs as well as identification of metabolic pathways will provide new therapeutic targets for Cyr61-realated diseases.
Collapse
|
27
|
Fujiwara C, Uehara A, Sekiguchi A, Uchiyama A, Yamazaki S, Ogino S, Yokoyama Y, Torii R, Hosoi M, Suto C, Tsunekawa K, Murakami M, Ishikawa O, Motegi S. Suppressive Regulation by MFG‐E8 of Latent Transforming Growth Factor β–Induced Fibrosis via Binding to αv Integrin: Significance in the Pathogenesis of Fibrosis in Systemic Sclerosis. Arthritis Rheumatol 2019; 71:302-314. [DOI: 10.1002/art.40701] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 08/28/2018] [Indexed: 02/06/2023]
Affiliation(s)
| | - Akihito Uehara
- Gunma University Graduate School of Medicine Maebashi Japan
| | | | | | | | - Sachiko Ogino
- Gunma University Graduate School of Medicine Maebashi Japan
| | - Yoko Yokoyama
- Gunma University Graduate School of Medicine Maebashi Japan
| | - Ryoko Torii
- Gunma University Graduate School of Medicine Maebashi Japan
| | - Mari Hosoi
- Gunma University Graduate School of Medicine Maebashi Japan
| | - Chiaki Suto
- Gunma University Graduate School of Medicine Maebashi Japan
| | | | | | - Osamu Ishikawa
- Gunma University Graduate School of Medicine Maebashi Japan
| | | |
Collapse
|
28
|
Saxena D, Mahjour F, Findlay A, Mously E, Kantarci A, Trackman P. Multiple Functions of Lysyl Oxidase Like-2 in Oral Fibroproliferative Processes. J Dent Res 2018; 97:1277-1284. [PMID: 29787337 PMCID: PMC6151912 DOI: 10.1177/0022034518775971] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Gingival overgrowth is a side effect of certain medications, including calcium channel blockers, cyclosporin A, and phenytoin. Phenytoin-induced gingival overgrowth is fibrotic. Lysyl oxidases are extracellular enzymes that are required for biosynthetic cross-linking of collagens, and members of this enzyme family are upregulated in fibrosis. Previous studies in humans and in a mouse model of phenytoin-induced gingival overgrowth have shown that LOXL2 is elevated in the epithelium and connective tissue in gingival overgrowth tissues and not in normal tissues. Here, using a novel LOXL2 isoform-selective inhibitor and knockdown studies in loss- and gain-of-function studies, we investigated roles for LOXL2 in promoting cultures of human gingival fibroblasts to proliferate and to accumulate collagen. Data indicate that LOXL2 stimulates gingival fibroblast proliferation, likely by a platelet-derived growth factor B receptor-mediated mechanism. Moreover, collagen accumulation was stimulated by LOXL2 enzyme and inhibited by LOXL2 inhibitor or gene knockdown. These studies suggest that LOXL2 could serve as a potential therapeutic target to address oral fibrotic conditions.
Collapse
Affiliation(s)
- D. Saxena
- Department of Molecular and Cell Biology,
Boston University Henry M. Goldman School of Dental Medicine, Boston, MA, USA
| | - F. Mahjour
- Department of Molecular and Cell Biology,
Boston University Henry M. Goldman School of Dental Medicine, Boston, MA, USA
| | | | - E.A. Mously
- Department of Molecular and Cell Biology,
Boston University Henry M. Goldman School of Dental Medicine, Boston, MA, USA
- College of Dentistry, Taibah University,
Medina, Saudi Arabia
| | | | - P.C. Trackman
- Department of Molecular and Cell Biology,
Boston University Henry M. Goldman School of Dental Medicine, Boston, MA, USA
| |
Collapse
|
29
|
Kaasbøll OJ, Gadicherla AK, Wang JH, Monsen VT, Hagelin EMV, Dong MQ, Attramadal H. Connective tissue growth factor (CCN2) is a matricellular preproprotein controlled by proteolytic activation. J Biol Chem 2018; 293:17953-17970. [PMID: 30262666 DOI: 10.1074/jbc.ra118.004559] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 08/23/2018] [Indexed: 11/06/2022] Open
Abstract
Connective tissue growth factor (CTGF; now often referred to as CCN2) is a secreted protein predominantly expressed during development, in various pathological conditions that involve enhanced fibrogenesis and tissue fibrosis, and in several cancers and is currently an emerging target in several early-phase clinical trials. Tissues containing high CCN2 activities often display smaller degradation products of full-length CCN2 (FL-CCN2). Interpretation of these observations is complicated by the fact that a uniform protein structure that defines biologically active CCN2 has not yet been resolved. Here, using DG44 CHO cells engineered to produce and secrete FL-CCN2 and cell signaling and cell physiological activity assays, we demonstrate that FL-CCN2 is itself an inactive precursor and that a proteolytic fragment comprising domains III (thrombospondin type 1 repeat) and IV (cystine knot) appears to convey all biologically relevant activities of CCN2. In congruence with these findings, purified FL-CCN2 could be cleaved and activated following incubation with matrix metalloproteinase activities. Furthermore, the C-terminal fragment of CCN2 (domains III and IV) also formed homodimers that were ∼20-fold more potent than the monomeric form in activating intracellular phosphokinase cascades. The homodimer elicited activation of fibroblast migration, stimulated assembly of focal adhesion complexes, enhanced RANKL-induced osteoclast differentiation of RAW264.7 cells, and promoted mammosphere formation of MCF-7 mammary cancer cells. In conclusion, CCN2 is synthesized and secreted as a preproprotein that is autoinhibited by its two N-terminal domains and requires proteolytic processing and homodimerization to become fully biologically active.
Collapse
Affiliation(s)
- Ole Jørgen Kaasbøll
- From the Institute for Surgical Research, Oslo University Hospital and University of Oslo, NO-0424 Oslo, Norway; Center for Heart Failure Research, University of Oslo, NO-0316 Oslo, Norway
| | - Ashish K Gadicherla
- From the Institute for Surgical Research, Oslo University Hospital and University of Oslo, NO-0424 Oslo, Norway; Center for Heart Failure Research, University of Oslo, NO-0316 Oslo, Norway
| | - Jian-Hua Wang
- National Institute of Biological Sciences, 102206 Beijing, China
| | - Vivi Talstad Monsen
- From the Institute for Surgical Research, Oslo University Hospital and University of Oslo, NO-0424 Oslo, Norway; Center for Heart Failure Research, University of Oslo, NO-0316 Oslo, Norway
| | - Else Marie Valbjørn Hagelin
- From the Institute for Surgical Research, Oslo University Hospital and University of Oslo, NO-0424 Oslo, Norway; Center for Heart Failure Research, University of Oslo, NO-0316 Oslo, Norway
| | - Meng-Qiu Dong
- National Institute of Biological Sciences, 102206 Beijing, China
| | - Håvard Attramadal
- From the Institute for Surgical Research, Oslo University Hospital and University of Oslo, NO-0424 Oslo, Norway; Center for Heart Failure Research, University of Oslo, NO-0316 Oslo, Norway.
| |
Collapse
|
30
|
Yang R, Chen Y, Chen D. Biological functions and role of CCN1/Cyr61 in embryogenesis and tumorigenesis in the female reproductive system (Review). Mol Med Rep 2017; 17:3-10. [PMID: 29115499 PMCID: PMC5780141 DOI: 10.3892/mmr.2017.7880] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 09/18/2017] [Indexed: 12/17/2022] Open
Abstract
Cysteine-rich angiogenic inducer 61 (CCN1/Cyr61) is a prompt response transcription product activated by growth factors. As a member of the CCN family, it mediates cell survival, proliferation, differentiation, migration, adhesion and synthesis of the extracellular matrix by binding directly to the integrins and heparin sulfate proteoglycans or activating multiple signaling transduction pathways. It has previously been demonstrated that CCN1/Cyr61 exhibits an important role in the female reproductive system during embryogenesis and tumorigenesis. However, the functions of CCN1/Cyr61 in the female reproductive system have not been systematically investigated, therefore, the primary aim of the present review is to introduce the role and function of CCN1/Cyr61 in the female reproductive system. The current review presents the molecular structure and biological function of CCN1/Cyr61 and provides detailed data on its expression pattern and contribution to the female reproductive system, including the role in embryogenesis and tumorigenesis.
Collapse
Affiliation(s)
- Rui Yang
- Wuxi Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu 214002, P.R. China
| | - Ying Chen
- Wuxi Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu 214002, P.R. China
| | - Daozhen Chen
- Wuxi Maternity and Child Health Care Hospital Affiliated to Nanjing Medical University, Wuxi, Jiangsu 214002, P.R. China
| |
Collapse
|
31
|
Jia P, Hu Y, Li G, Sun Y, Zhao J, Fu J, Lu C, Liu B. Roles of the ERK1/2 and PI3K/PKB signaling pathways in regulating the expression of extracellular matrix genes in rat pulmonary artery smooth muscle cells. Acta Cir Bras 2017; 32:350-358. [PMID: 28591364 DOI: 10.1590/s0102-865020170050000004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2017] [Accepted: 04/19/2017] [Indexed: 12/30/2022] Open
Abstract
Purpose: To investigate the mechanisms by which PD98059 and LY294002 interfere with the abnormal deposition of extracellular matrix regulated by connective tissue growth factor (CTGF) of rat pulmonary artery smooth muscle cells (PASMCs). Methods: Rat PASMCs were cultured and separated into a control group. Real-time fluorescence quantitative PCR was performed to detect the expression of collagen III and fibronectin mRNA. Immunohistochemistry and western blot analyses were performed to detect the expression of collagen III protein. Results: The expression of collagen III and fibronectin mRNA was greater in PASMCs stimulated with CTGF for 48 h, than in the control group. After 72h of stimulation, the expression of collagen III protein in the PASMCs was greater than in the control. The equivalent gene and protein expression of the CPL group were much more significant. Conclusions: CTGF can stimulate the gene expression of collagen III and fibronectin in PASMCs, which may be one of the factors that promote pulmonary vascular remodeling (PVR) under the conditions of pulmonary arterial hypertension (PAH). PD98059 and LY294002 can inhibit the ERK1/2 and PI3K/PKB signaling pathways, respectively, thus interfering with the biological effects of CTGF. This may be a new way to reduce PAH-PVR.
Collapse
Affiliation(s)
- Peng Jia
- Fellow Master degree, Postgraduate Program in Pediatrics Cardiology, Affiliated Hospital of Southwest Medical University, China. Acquisition and interpretation of data, technical procedures, manuscript preparation
| | - Yu Hu
- Fellow Master degree, Postgraduate Program in Pediatrics Cardiology, Affiliated Hospital of Southwest Medical University, China. Acquisition and interpretation of data, technical procedures, manuscript preparation
| | - Gang Li
- Fellow Master degree, Postgraduate Program in Pediatrics Cardiology, Affiliated Hospital of Southwest Medical University, China. Acquisition and interpretation of data, technical procedures, manuscript preparation
| | - Yuqin Sun
- MD, Postgraduate Program in Nursing in Department of Pediatrics, Affiliated Hospital of Southwest Medical University, China. Analysis and interpretation of data, technical procedures
| | - Jian Zhao
- Fellow Master degree, Postgraduate Program in Pediatrics Cardiology, Affiliated Hospital of Southwest Medical University, China. Acquisition and interpretation of data, technical procedures, manuscript preparation
| | - Jie Fu
- Fellow Master degree, Postgraduate Program in Pediatrics Cardiology, Affiliated Hospital of Southwest Medical University, China. Acquisition and interpretation of data, technical procedures, manuscript preparation
| | - Cuixia Lu
- Fellow Master degree, Postgraduate Program in Pediatrics Cardiology, Affiliated Hospital of Southwest Medical University, China. Acquisition and interpretation of data, technical procedures, manuscript preparation
| | - Bin Liu
- Full Professor, Director, Department of Pediatrics Cardiology, Affiliated Hospital of Southwest Medical University, China. Conception, design, intellectual and scientific content of the study; analysis and interpretation of data; critical revision
| |
Collapse
|
32
|
Ramírez-Rámiz A, Brunet-LLobet L, Lahor-Soler E, Miranda-Rius J. On the Cellular and Molecular Mechanisms of Drug-Induced Gingival Overgrowth. Open Dent J 2017; 11:420-435. [PMID: 28868093 PMCID: PMC5564016 DOI: 10.2174/1874210601711010420] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 05/03/2017] [Accepted: 06/05/2017] [Indexed: 01/06/2023] Open
Abstract
Introduction: Gingival overgrowth has been linked to multiple factors such as adverse drug effects, inflammation, neoplastic processes, and hereditary gingival fibromatosis. Drug-induced gingival overgrowth is a well-established adverse event. In early stages, this gingival enlargement is usually located in the area of the interdental papilla. Histologically, there is an increase in the different components of the extracellular matrix. Objective: The aim of this manuscript is to describe and analyze the different cellular and molecular agents involved in the pathogenesis of Drug-induced gingival overgrowth. Method: A literature search of the MEDLINE/PubMed database was conducted to identify the mechanisms involved in the process of drug-induced gingival overgrowth, with the assistance of a research librarian. We present several causal hypotheses and discuss the advances in the understanding of the mechanisms that trigger this gingival alteration. Results: In vitro studies have revealed phenotypic cellular changes in keratinocytes and fibroblasts and an increase of the extracellular matrix with collagen and glycosaminoglycans. Drug-induced gingival overgrowth confirms the key role of collagenase and integrins, membrane receptors present in the fibroblasts, due to their involvement in the catabolism of collagen. The three drug categories implicated: calcineuron inhibitors (immunosuppressant drugs), calcium channel blocking agents and anticonvulsant drugs appear to present a multifactorial pathogenesis with a common molecular action: the blockage of the cell membrane in the Ca2+/Na+ ion flow. The alteration of the uptake of cellular folic acid, which depends on the regulated channels of active cationic transport and on passive diffusion, results in a dysfunctional degradation of the connective tissue. Certain intermediate molecules such as cytokines and prostaglandins play a role in this pathological mechanism. The concomitant inflammatory factor encourages the appearance of fibroblasts, which leads to gingival fibrosis. Susceptibility to gingival overgrowth in some fibroblast subpopulations is due to phenotypic variability and genetic polymorphism, as shown by the increase in the synthesis of molecules related to the response of the gingival tissue to inducing drugs. The authors present a diagram depicting various mechanisms involved in the pathogenesis of drug-induced gingival overgrowth. Conclusion: Individual predisposition, tissue inflammation, and molecular changes in response to the inducing drug favor the clinical manifestation of gingival overgrowth.
Collapse
Affiliation(s)
- Albert Ramírez-Rámiz
- Department of Odontostomatology. Faculty of Medicine and Health Sciences. University of Barcelona, Barcelona, Spain
| | - Lluís Brunet-LLobet
- Department of Dentistry. Hospital Universitari Sant Joan de Déu. University of Barcelona, Barcelona, Spain
| | - Eduard Lahor-Soler
- Department of Odontostomatology. Faculty of Medicine and Health Sciences. University of Barcelona, Barcelona, Spain
| | - Jaume Miranda-Rius
- Department of Odontostomatology. Faculty of Medicine and Health Sciences. University of Barcelona, Barcelona, Spain
| |
Collapse
|
33
|
Melstrom LG, Salazar MD, Diamond DJ. The pancreatic cancer microenvironment: A true double agent. J Surg Oncol 2017; 116:7-15. [PMID: 28605029 DOI: 10.1002/jso.24643] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Accepted: 03/17/2017] [Indexed: 12/18/2022]
Abstract
The tumor microenvironment in pancreatic cancer is a complex balance of pro- and anti-tumor components. The dense desmoplasia consists of immune cells, extracellular matrix, growth factors, cytokines, and cancer associated fibroblasts (CAF) or pancreatic stellate cells (PSC). There are a multitude of targets including hyaluronan, angiogenesis, focal adhesion kinase (FAK), connective tissue growth factor (CTGF), CD40, chemokine (C-X-C motif) receptor 4 (CXCR-4), immunotherapy, and Vitamin D. The developing clinical therapeutics will be reviewed.
Collapse
Affiliation(s)
- Laleh G Melstrom
- Department of Surgery and Experimental Therapeutics, City of Hope National Medical Center, Duarte, California
| | - Marcela D Salazar
- Department of Experimental Therapeutics, City of Hope National Medical Center, Duarte, California
| | - Don J Diamond
- Department of Experimental Therapeutics, City of Hope National Medical Center, Duarte, California
| |
Collapse
|
34
|
Purohit T, Qin Z, Quan C, Lin Z, Quan T. Smad3-dependent CCN2 mediates fibronectin expression in human skin dermal fibroblasts. PLoS One 2017; 12:e0173191. [PMID: 28267785 PMCID: PMC5340390 DOI: 10.1371/journal.pone.0173191] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 02/16/2017] [Indexed: 01/12/2023] Open
Abstract
The potential involvement of connective tissue growth factor (CCN2/CTGF) in extracellular matrix (ECM) production is recognized. However, the role CCN2 in fibronectin (FN) gene expression has remained incompletely understood and even controversial. Here we report that CCN2 is absolutely necessary for FN expression in primary human skin dermal fibroblasts, the major cells responsible for ECM production in skin. Gain- and loss-of-function approaches demonstrate that CCN2 is an essential component of FN expression in both basal and stimulation by TGF-β signaling, the major regulator of FN expression. CCN2 is significantly induced by Smad3, a critical mediator of TGF-β signaling. CCN2 acts as a downstream mediator of TGF-β/Smad signaling and acting synergistically with TGF-β to regulate FN gene expression. Finally, we observed that CCN2 and FN predominantly expressed in the dermis of normal human skin, stromal tissues of skin squamous cell carcinoma (SCC), and simultaneously induced in wounded human skin in vivo. These findings provide evidence that CCN2 is responsible for mediating the stimulatory effects of TGF-β/Smad on FN gene expression, and attenuation of CCN2 expression may benefit to reduce fibrotic ECM microenvironment in disease skin.
Collapse
Affiliation(s)
- Trupta Purohit
- Department of Pathology, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
| | - Zhaoping Qin
- Department of Dermatology, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
| | - Chunji Quan
- Department of Pathology & Cancer Research Center, Yanbian University Medical College, Yanji, China
| | - Zhenhua Lin
- Department of Pathology & Cancer Research Center, Yanbian University Medical College, Yanji, China
| | - Taihao Quan
- Department of Dermatology, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
| |
Collapse
|
35
|
López-González M, Luis E, Fajardo O, Meseguer V, Gers-Barlag K, Niñerola S, Viana F. TRPA1 Channels Mediate Human Gingival Fibroblast Response to Phenytoin. J Dent Res 2017; 96:832-839. [DOI: 10.1177/0022034517695518] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- M.J. López-González
- Instituto de Neurociencias de Alicante, Universidad Miguel Hernández–CSIC, Alicante, Spain
| | - E. Luis
- Instituto de Neurociencias de Alicante, Universidad Miguel Hernández–CSIC, Alicante, Spain
| | - O. Fajardo
- Instituto de Neurociencias de Alicante, Universidad Miguel Hernández–CSIC, Alicante, Spain
| | - V. Meseguer
- Instituto de Neurociencias de Alicante, Universidad Miguel Hernández–CSIC, Alicante, Spain
| | - K. Gers-Barlag
- Instituto de Neurociencias de Alicante, Universidad Miguel Hernández–CSIC, Alicante, Spain
| | - S. Niñerola
- Instituto de Neurociencias de Alicante, Universidad Miguel Hernández–CSIC, Alicante, Spain
| | - F. Viana
- Instituto de Neurociencias de Alicante, Universidad Miguel Hernández–CSIC, Alicante, Spain
| |
Collapse
|
36
|
Kota J, Hancock J, Kwon J, Korc M. Pancreatic cancer: Stroma and its current and emerging targeted therapies. Cancer Lett 2017; 391:38-49. [PMID: 28093284 DOI: 10.1016/j.canlet.2016.12.035] [Citation(s) in RCA: 122] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 12/22/2016] [Accepted: 12/23/2016] [Indexed: 12/20/2022]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal human malignancies with a 5-year survival rate of 8%. Dense, fibrotic stroma associated with pancreatic tumors is a major obstacle for drug delivery to the tumor bed and plays a crucial role in pancreatic cancer progression. Targeting stroma is considered as a potential therapeutic strategy to improve anti-cancer drug efficacy and patient survival. Although numerous stromal depletion therapies have reached the clinic, they add little to overall survival and are often associated with toxicity. Furthermore, increasing evidence suggests the anti-tumor properties of stroma. Its complete ablation enhanced tumor progression and reduced survival. Consequently, efforts are now focused on developing stromal-targeted therapies that normalize the reactive stroma and avoid the extremes: stromal abundance vs. complete depletion. In this review, we summarized the state of current and emerging anti-stromal targeted therapies, with major emphasis on the role of miRNAs in PDAC stroma and their potential use as novel therapeutic agents to modulate PDAC tumor-stromal interactions.
Collapse
Affiliation(s)
- Janaiah Kota
- Department of Medical and Molecular Genetics, Indiana University School of Medicine (IUSM), Indianapolis, IN, USA; The Melvin and Bren Simon Cancer Center, IUSM, Indianapolis, IN, USA; Center for Pancreatic Cancer Research, Indiana University and Purdue University-Indianapolis (IUPUI), Indianapolis, IN, USA.
| | - Julie Hancock
- Department of Medical and Molecular Genetics, Indiana University School of Medicine (IUSM), Indianapolis, IN, USA
| | - Jason Kwon
- Department of Medical and Molecular Genetics, Indiana University School of Medicine (IUSM), Indianapolis, IN, USA
| | - Murray Korc
- The Melvin and Bren Simon Cancer Center, IUSM, Indianapolis, IN, USA; Center for Pancreatic Cancer Research, Indiana University and Purdue University-Indianapolis (IUPUI), Indianapolis, IN, USA; Department of Biochemistry and Molecular Biology, IUSM, Indianapolis, IN, USA; Department of Medicine, IUSM, Indianapolis, IN, USA
| |
Collapse
|
37
|
Trackman PC, Saxena D, Bais MV. TGF-β1- and CCN2-Stimulated Sirius Red Assay for Collagen Accumulation in Cultured Cells. Methods Mol Biol 2017; 1489:481-485. [PMID: 27734398 DOI: 10.1007/978-1-4939-6430-7_39] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A simple method for the determination of relative levels of insoluble collagen accumulation in fibroblast cultures is presented. Confluent cell cultures are provided with sodium ascorbate which is then permissive for collagen deposition. At intervals, cultures are fixed and stained successively with sirius red and then crystal Violet to, respectively, assess for relative changes in collagen accumulation in response to factors such as TGF-β1 or matricellular CCN2 and changes in DNA content as an index of changes in cell density.
Collapse
Affiliation(s)
- Philip C Trackman
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, 700 Albany Street, W-201, Boston, MA, 02118, USA.
| | - Debashree Saxena
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, 700 Albany Street, W-201, Boston, MA, 02118, USA
| | - Manish V Bais
- Department of Molecular and Cell Biology, Henry M. Goldman School of Dental Medicine, Boston University, 700 Albany Street, W-201, Boston, MA, 02118, USA
| |
Collapse
|
38
|
Chang XH, Zhu A, Liu FF, Zou LY, Su L, Liu SK, Zhou HH, Sun YY, Han AJ, Sun YF, Li S, Li J, Sun YB. Nickel oxide nanoparticles induced pulmonary fibrosis via TGF-β1 activation in rats. Hum Exp Toxicol 2016; 36:802-812. [DOI: 10.1177/0960327116666650] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Nano nickel oxide (NiO), widely used in industry, has recently been discovered to have pulmonary toxicity. However, no subchronic exposure studies about nano NiO-induced pulmonary fibrosis have been reported. The objective of this study was to investigate pulmonary fibrosis induced by nano NiO and its potential mechanism in rats. Male Wistar rats ( n = 40, 200–240 g) were randomized into control group, nano NiO groups (0.015, 0.06, and 0.24 mg/kg), and micro NiO group (0.024 mg/kg). All rats were killed to collect lung tissue after intratracheal instillation of NiO particles twice a week for 6 weeks. To identify pulmonary fibrosis, Masson trichrome staining, hydroxyproline content, and collagen protein expression were performed. The results showed widespread lung fibrotic injury in histological examination and increased content of hydroxyproline, collagen types I and III in rat lung tissue exposed to nano NiO. To explore the potential pulmonary fibrosis mechanism, transforming growth factor beta 1 (TGF- β1) content was measured by enzyme-linked immunosorbent assay, and the messenger RNA expression of key indicators was detected by reverse transcription-quantitative polymerase chain reaction (RT-qPCR). The TGF- β1 content was increased in nano NiO exposure groups, as well as the upregulated gene expression of TGF- β1, Smad2, Smad4, matrix metalloproteinase, and tissue inhibitor of metalloproteinase. The findings indicated that nano NiO could induce pulmonary fibrosis, which may be related to TGF- β1 activation.
Collapse
Affiliation(s)
- XH Chang
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, China
| | - A Zhu
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, China
| | - FF Liu
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, China
| | - LY Zou
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, China
| | - L Su
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, China
| | - SK Liu
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, China
| | - HH Zhou
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, China
| | - YY Sun
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, China
| | - AJ Han
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, China
| | - YF Sun
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, China
| | - S Li
- Lanzhou Municipal Center for Disease Control, Lanzhou, China
| | - J Li
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, China
| | - YB Sun
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, China
| |
Collapse
|
39
|
Huang YM, Chang PC, Wu SB, Kau HC, Tsai CC, Liu CJL, Wei YH. Expression and clinical significance of connective tissue growth factor (CTGF) in Graves' ophthalmopathy. Br J Ophthalmol 2016; 101:676-680. [PMID: 27543288 DOI: 10.1136/bjophthalmol-2016-308713] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 07/18/2016] [Accepted: 07/30/2016] [Indexed: 12/29/2022]
Abstract
AIMS To examine the expression of connective tissue growth factor (CTGF) in human cultured orbital fibroblasts from patients with Graves' ophthalmopathy (GO) and investigate whether a correlation exists between the presence of CTGF protein and clinical parameters of the disease. METHODS The protein expression levels of CTGF were analysed by western blots in cultured orbital fibroblasts from 10 patients with GO and 7 age-matched normal controls. Associations between the protein expression of CTGF and the clinical factors of GO, including clinical demographics, thyroid function, clinical activity score (CAS) and ophthalmopathy index (OI), was evaluated. RESULTS The mean protein expression levels of CTGF in the GO orbital fibroblasts were significantly higher than those of normal controls (p<0.001). Based on further analysis, the protein expression levels of CTGF in the GO orbital fibroblasts had significant correlation with gender (p=0.029), serum levels of thyrotropin receptor antibodies (p=0.029), CAS (p=0.048) and OI (p=0.043). Especially, there was a significant correlation between protein expression levels of CTGF and lid oedema (p=0.037), proptosis (p=0.045) and corneal involvement (p=0.001). CONCLUSIONS Our findings revealed that the protein expression levels of CTGF in the GO orbital fibroblasts were significantly highly expressed than those of normal controls, and the elevated CTGF was associated with clinical characteristics and evolution, indicating CTGF may play a role in the pathogenesis and pathophysiology of GO.
Collapse
Affiliation(s)
- Yi-Ming Huang
- Department of Ophthalmology, Taipei Veterans General Hospital and National Yang-Ming University, Taipei, Taiwan
| | - Pei-Chen Chang
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Shi-Bei Wu
- Department of Biochemistry and Molecular Biology, National Yang-Ming University, Taipei, Taiwan
| | - Hui-Chuan Kau
- Department of Ophthalmology, Taipei Veterans General Hospital and National Yang-Ming University, Taipei, Taiwan.,Department of Ophthalmology, Koo Foundation Sun Yat-Sen Cancer Center, Taipei, Taiwan
| | - Chieh-Chih Tsai
- Department of Ophthalmology, Taipei Veterans General Hospital and National Yang-Ming University, Taipei, Taiwan
| | - Catherine Jui-Ling Liu
- Department of Ophthalmology, Taipei Veterans General Hospital and National Yang-Ming University, Taipei, Taiwan
| | - Yau-Huei Wei
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan.,Department of Medicine and Institute of Biomedical Sciences, Mackay Medical College, New Taipei City, Taiwan
| |
Collapse
|
40
|
Chen H, Qu J, Huang X, Kurundkar A, Zhu L, Yang N, Venado A, Ding Q, Liu G, Antony VB, Thannickal VJ, Zhou Y. Mechanosensing by the α6-integrin confers an invasive fibroblast phenotype and mediates lung fibrosis. Nat Commun 2016; 7:12564. [PMID: 27535718 PMCID: PMC4992155 DOI: 10.1038/ncomms12564] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 07/13/2016] [Indexed: 11/25/2022] Open
Abstract
Matrix stiffening is a prominent feature of pulmonary fibrosis. In this study, we demonstrate that matrix stiffness regulates the ability of fibrotic lung myofibroblasts to invade the basement membrane (BM). We identify α6-integrin as a mechanosensing integrin subunit that mediates matrix stiffness-regulated myofibroblast invasion. Increasing α6-expression, specifically the B isoform (α6B), couples β1-integrin to mediate MMP-2-dependent pericellular proteolysis of BM collagen IV, leading to myofibroblast invasion. Human idiopathic pulmonary fibrosis lung myofibroblasts express high levels of α6-integrin in vitro and in vivo. Genetic ablation of α6 in collagen-expressing mesenchymal cells or pharmacological blockade of matrix stiffness-regulated α6-expression protects mice against bleomycin injury-induced experimental lung fibrosis. These findings suggest that α6-integrin is a matrix stiffness-regulated mechanosensitive molecule which confers an invasive fibroblast phenotype and mediates experimental lung fibrosis. Targeting this mechanosensing α6(β1)-integrin offers a novel anti-fibrotic strategy against lung fibrosis. Matrix stiffening is a feature of pulmonary fibrosis, and is amplified by lung myofibroblasts. Here the authors find that a6 integrin expression is upregulated on lung myofibroblasts in response to matrix stiffness, and this integrin is required for myofibroblast invasion, and fibrosis in an experimental disease model.
Collapse
Affiliation(s)
- Huaping Chen
- Department of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, Alabama 35294 USA
| | - Jing Qu
- Department of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, Alabama 35294 USA
| | - Xiangwei Huang
- Department of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, Alabama 35294 USA
| | - Ashish Kurundkar
- Department of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, Alabama 35294 USA
| | - Lanyan Zhu
- The Second Xiangya Hospital, Central-South University, Changsha 410011, China
| | - Naiheng Yang
- Department of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, Alabama 35294 USA
| | - Aida Venado
- Department of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, Alabama 35294 USA.,Department of Medicine, University of California at San Francisco, San Francisco, California 94143 USA
| | - Qiang Ding
- Department of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, Alabama 35294 USA
| | - Gang Liu
- Department of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, Alabama 35294 USA
| | - Veena B Antony
- Department of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, Alabama 35294 USA
| | - Victor J Thannickal
- Department of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, Alabama 35294 USA
| | - Yong Zhou
- Department of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, Alabama 35294 USA
| |
Collapse
|
41
|
Inhibition of β-catenin signaling protects against CTGF-induced alveolar and vascular pathology in neonatal mouse lung. Pediatr Res 2016; 80:136-44. [PMID: 26991260 DOI: 10.1038/pr.2016.52] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Accepted: 12/23/2015] [Indexed: 12/13/2022]
Abstract
BACKGROUND Bronchopulmonary dysplasia (BPD) is the most common and serious chronic lung disease of premature infants. Connective tissue growth factor (CTGF) plays an important role in tissue development and remodeling. We have previously shown that targeted overexpression of CTGF in alveolar type II epithelial cells results in BPD-like pathology and activates β-catenin in neonatal mice. METHODS Utilizing this transgenic mouse model and ICG001, a specific pharmacological inhibitor of β-catenin, we tested the hypothesis that β-catenin signaling mediates the effects of CTGF in the neonatal lung. Newborn CTGF mice and control littermates received ICG001 (10 mg/kg/dose) or placebo (dimethyl sulfoxide, equal volume) by daily i.p. injection from postnatal day 5 to 15. Alveolarization, vascular development, and pulmonary hypertension (PH) were analyzed. RESULTS Administration of ICG001 significantly downregulated expression of cyclin D1, collagen 1a1, and fibronectin, which are the known target genes of β-catenin signaling in CTGF lungs. Inhibition of β-catenin signaling improved alveolar and vascular development and decreased pulmonary vascular remodeling. More importantly, the improved vascular development and vascular remodeling led to a decrease in PH. CONCLUSION β-Catenin signaling mediates the autocrine and paracrine effects of CTGF in the neonatal lung. Inhibition of CTGF-β-catenin signaling may provide a novel therapy for BPD.
Collapse
|
42
|
Al-Hamilly NS, Radwan LRS, Abdul-Rahman M, Mourad MI, Grawish ME. Biological roles of KGF, CTGF and TGF-β in cyclosporine-A- and phenytoin- induced gingival overgrowth: A comparative experimental animal study. Arch Oral Biol 2016; 66:38-43. [PMID: 26894526 DOI: 10.1016/j.archoralbio.2016.02.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2015] [Revised: 02/03/2016] [Accepted: 02/04/2016] [Indexed: 02/07/2023]
Affiliation(s)
| | | | | | - Mohamed I Mourad
- Oral Pathology, Faculty of Dentistry, Mansoura University, Egypt
| | - Mohammed E Grawish
- Oral Biology, Faculty of Dentistry, Mansoura University, Egypt; Oral Biology, Faculty of Oral and Dental Medicine, Delta University for Science and Technology, Gamasa, Mansoura, Egypt.
| |
Collapse
|
43
|
Smith SW, Croft AP, Morris HL, Naylor AJ, Huso DL, Isacke CM, Savage COS, Buckley CD. Genetic Deletion of the Stromal Cell Marker CD248 (Endosialin) Protects against the Development of Renal Fibrosis. Nephron Clin Pract 2015; 131:265-77. [PMID: 26633297 PMCID: PMC4872467 DOI: 10.1159/000438754] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Accepted: 07/16/2015] [Indexed: 01/15/2023] Open
Abstract
Background Tissue fibrosis and microvascular rarefaction are hallmarks of progressive renal disease. CD248 is a transmembrane glycoprotein expressed by key effector cells within the stroma of fibrotic kidneys including pericytes, myofibroblasts and stromal fibroblasts. In human disease, increased expression of CD248 by stromal cells predicts progression to end-stage renal failure. We therefore, hypothesized that the genetic deletion of the CD248 gene would protect against fibrosis following kidney injury. Methods Using the unilateral ureteral obstruction (UUO) model of renal fibrosis, we investigated the effect of genetic deletion of CD248 on post obstructive kidney fibrosis. Results CD248 null mice were protected from fibrosis and microvascular rarefaction following UUO. Although the precise mechanism is not known, this may to be due to a stabilizing effect of pericytes with less migration and differentiation of pericytes toward a myofibroblast phenotype in CD248-/- mice. CD248-/- fibroblasts also proliferated less and deposited less collagen in vitro. Conclusion These studies suggest that CD248 stromal cells have a pathogenic role in renal fibrosis and that targeting CD248 is effective at inhibiting both microvascular rarefaction and renal fibrosis through modulation of pericyte and stromal cell function.
Collapse
Affiliation(s)
- Stuart William Smith
- Center for Translational Inflammation Research, University of Birmingham Research Laboratories, Queen Elizabeth Hospital, Birmingham, UK
| | | | | | | | | | | | | | | |
Collapse
|
44
|
Remst DFG, Blaney Davidson EN, van der Kraan PM. Unravelling osteoarthritis-related synovial fibrosis: a step closer to solving joint stiffness. Rheumatology (Oxford) 2015; 54:1954-63. [PMID: 26175472 DOI: 10.1093/rheumatology/kev228] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Indexed: 01/01/2023] Open
Abstract
Synovial fibrosis is often found in OA, contributing heavily to joint pain and joint stiffness, the main symptoms of OA. At this moment the underlying mechanism of OA-related synovial fibrosis is not known and there is no cure available. In this review we discuss factors that have been reported to be involved in synovial fibrosis. The aim of the study was to gain insight into how these factors contribute to the fibrotic process and to determine the best targets for therapy in synovial fibrosis. In this regard, the following factors are discussed: TGF-β, connective tissue growth factor, procollagen-lysine, 2-oxoglutarate 5-dioxygenase 2, tissue inhibitor of metalloproteinase 1, A disintegrin and metalloproteinase domain 12, urotensin-II, prostaglandin F2α and hyaluronan.
Collapse
Affiliation(s)
- Dennis F G Remst
- Radboud University Medical Center, Experimental Rheumatology, Nijmegen, The Netherlands
| | | | - Peter M van der Kraan
- Radboud University Medical Center, Experimental Rheumatology, Nijmegen, The Netherlands
| |
Collapse
|
45
|
Shafieian M, Chen S, Wu S. Integrin-linked kinase mediates CTGF-induced epithelial to mesenchymal transition in alveolar type II epithelial cells. Pediatr Res 2015; 77:520-7. [PMID: 25580742 DOI: 10.1038/pr.2015.8] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Accepted: 09/30/2014] [Indexed: 11/09/2022]
Abstract
BACKGROUND Overexpression of connective tissue growth factor (CTGF) in alveolar type II epithelial (AT II) cells disrupts alveolar structure, causes interstitial fibrosis, and upregulates integrin-linked kinase (ILK). Whether CTGF-ILK signaling induces epithelial to mesenchymal transition (EMT) in AT II cells is unknown. METHODS Transgenic mice with targeted overexpression of CTGF in AT II cells were generated utilizing the surfactant protein C (SP-C) gene promoter and doxycycline-inducible system. AT II cells were isolated from 4-wk-old CTGF-overexpressing (CTGF+) mice and control littermates, and cultured on Matrigel. Cells were transfected with ILK siRNA, and cell morphology and expression of cell differentiation markers were analyzed. RESULTS The AT II cells from the control lungs grew in clusters and formed alveolar-like cysts and expressed SP-C. In contrast, the cells from CTGF+ lungs were spread and failed to form alveolar-like cysts. These cells expressed higher levels of CTGF, α smooth muscle actin (α-SMA), fibronectin and vimentin, the mesenchymal markers, suggesting EMT-like changes. Transfection with ILK siRNA not only dramatically attenuated ILK expression, but also decreased α-SMA expression as well as reversed cell morphological changes in CTGF+ AT II cells. CONCLUSION Overexpression of CTGF induces EMT in mouse primary AT II cells and this is mediated by ILK.
Collapse
Affiliation(s)
- Mitra Shafieian
- Division of Pediatric Pulmonology, Department of Pediatrics, University of Miami, School of Medicine, Miami, Florida
| | - Shaoyi Chen
- Division of Neonatology, Department of Pediatrics, University of Miami, School of Medicine, Miami, Florida
| | - Shu Wu
- Division of Neonatology, Department of Pediatrics, University of Miami, School of Medicine, Miami, Florida
| |
Collapse
|
46
|
Yang Z, Sun Z, Liu H, Ren Y, Shao D, Zhang W, Lin J, Wolfram J, Wang F, Nie S. Connective tissue growth factor stimulates the proliferation, migration and differentiation of lung fibroblasts during paraquat-induced pulmonary fibrosis. Mol Med Rep 2015; 12:1091-7. [PMID: 25815693 PMCID: PMC4438944 DOI: 10.3892/mmr.2015.3537] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Accepted: 03/09/2015] [Indexed: 12/20/2022] Open
Abstract
It is well established that paraquat (PQ) poisoning can cause severe lung injury during the early stages of exposure, finally leading to irreversible pulmonary fibrosis. Connective tissue growth factor (CTGF) is an essential growth factor that is involved in tissue repair and pulmonary fibrogenesis. In the present study, the role of CTGF was examined in a rat model of pulmonary fibrosis induced by PQ poisoning. Histological examination revealed interstitial edema and extensive cellular thickening of interalveolar septa at the early stages of poisoning. At 2 weeks after PQ administration, lung tissue sections exhibited a marked thickening of the alveolar walls with an accumulation of interstitial cells with a fibroblastic appearance. Masson’s trichrome staining revealed a patchy distribution of collagen deposition, indicating pulmonary fibrogenesis. Western blot analysis and immunohistochemical staining of tissue samples demonstrated that CTGF expression was significantly upregulated in the PQ-treated group. Similarly, PQ treatment of MRC-5 human lung fibroblast cells caused an increase in CTGF in a dose-dependent manner. Furthermore, the addition of CTGF to MRC-5 cells triggered cellular proliferation and migration. In addition, CTGF induced the differentiation of fibroblasts to myofibroblasts, as was evident from increased expression of α-smooth muscle actin (α-SMA) and collagen. These findings demonstrate that PQ causes increased CTGF expression, which triggers proliferation, migration and differentiation of lung fibroblasts. Therefore, CTGF may be important in PQ-induced pulmonary fibrogenesis, rendering this growth factor a potential pharmacological target for reducing lung injury.
Collapse
Affiliation(s)
- Zhizhou Yang
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210002, P.R. China
| | - Zhaorui Sun
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210002, P.R. China
| | - Hongmei Liu
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210002, P.R. China
| | - Yi Ren
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210002, P.R. China
| | - Danbing Shao
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210002, P.R. China
| | - Wei Zhang
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210002, P.R. China
| | - Jinfeng Lin
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210002, P.R. China
| | - Joy Wolfram
- CAS Key Laboratory for Biomedial Effects of Nanomaterials & Nanosafety, National Center for Nanoscience and Technology of China, University of Chinese Academy of Sciences, Beijing 100190, P.R. China
| | - Feng Wang
- Department of Gastroenterology, The Tenth People's Hospital of Shanghai, Tongji University, Shanghai 200072, P.R. China
| | - Shinan Nie
- Department of Emergency Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210002, P.R. China
| |
Collapse
|
47
|
Takigawa M. Terminology of CCN1-6 should not be applicable for their fragments and be limited to only full length CCN1-6. J Cell Commun Signal 2015; 9:81-3. [PMID: 25698662 DOI: 10.1007/s12079-015-0269-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Accepted: 02/06/2015] [Indexed: 10/24/2022] Open
Affiliation(s)
- Masaharu Takigawa
- Advanced Research Center for Oral and Craniofacial Sciences (ARCOCS), Okayama University Dental School, 2-5-1, Shikata-cho, Okayama, 700-8525, Japan,
| |
Collapse
|
48
|
Agis H, Collins A, Taut AD, Jin Q, Kruger L, Görlach C, Giannobile WV. Cell population kinetics of collagen scaffolds in ex vivo oral wound repair. PLoS One 2014; 9:e112680. [PMID: 25397671 PMCID: PMC4232419 DOI: 10.1371/journal.pone.0112680] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2014] [Accepted: 10/09/2014] [Indexed: 01/05/2023] Open
Abstract
Biodegradable collagen scaffolds are used clinically for oral soft tissue augmentation to support wound healing. This study sought to provide a novel ex vivo model for analyzing healing kinetics and gene expression of primary human gingival fibroblasts (hGF) within collagen scaffolds. Sponge type and gel type scaffolds with and without platelet-derived growth factor-BB (PDGF) were assessed in an hGF containing matrix. Morphology was evaluated with scanning electron microscopy, and hGF metabolic activity using MTT. We quantitated the population kinetics within the scaffolds based on cell density and distance from the scaffold border of DiI-labled hGFs over a two-week observation period. Gene expression was evaluated with gene array and qPCR. The sponge type scaffolds showed a porous morphology. Absolute cell number and distance was higher in sponge type scaffolds when compared to gel type scaffolds, in particular during the first week of observation. PDGF incorporated scaffolds increased cell numbers, distance, and formazan formation in the MTT assay. Gene expression dynamics revealed the induction of key genes associated with the generation of oral tissue. DKK1, CYR61, CTGF, TGFBR1 levels were increased and integrin ITGA2 levels were decreased in the sponge type scaffolds compared to the gel type scaffold. The results suggest that this novel model of oral wound healing provides insights into population kinetics and gene expression dynamics of biodegradable scaffolds.
Collapse
Affiliation(s)
- Hermann Agis
- Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, Michigan, United States of America
- Department of Conservative Dentistry and Periodontology, Medical University of Vienna, Vienna, Austria
- Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Amy Collins
- Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Andrei D. Taut
- Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Qiming Jin
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Laura Kruger
- Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, Michigan, United States of America
| | | | - William V. Giannobile
- Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, Michigan, United States of America
- Department of Biomedical Engineering, College of Engineering, University of Michigan, Ann Arbor, Michigan, United States of America
- * E-mail:
| |
Collapse
|
49
|
Whitson RJ, Lucia MS, Lambert JR. Growth differentiation factor-15 (GDF-15) suppresses in vitro angiogenesis through a novel interaction with connective tissue growth factor (CCN2). J Cell Biochem 2014; 114:1424-33. [PMID: 23280549 DOI: 10.1002/jcb.24484] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2012] [Accepted: 12/11/2012] [Indexed: 12/15/2022]
Abstract
Growth differentiation factor-15 (GDF-15) and the CCN family member, connective tissue growth factor (CCN2), are associated with cardiac disease, inflammation, and cancer. The precise role and signaling mechanism for these factors in normal and diseased tissues remains elusive. Here we demonstrate an interaction between GDF-15 and CCN2 using yeast two-hybrid assays and have mapped the domain of interaction to the von Willebrand factor type C domain of CCN2. Biochemical pull down assays using secreted GDF-15 and His-tagged CCN2 produced in PC-3 prostate cancer cells confirmed a direct interaction between these proteins. To investigate the functional consequences of this interaction, in vitro angiogenesis assays were performed. We demonstrate that GDF-15 blocks CCN2-mediated tube formation in human umbilical vein endothelial (HUVEC) cells. To examine the molecular mechanism whereby GDF-15 inhibits CCN2-mediated angiogenesis, activation of αV β3 integrins and focal adhesion kinase (FAK) was examined. CCN2-mediated FAK activation was inhibited by GDF-15 and was accompanied by a decrease in αV β3 integrin clustering in HUVEC cells. These results demonstrate, for the first time, a novel signaling pathway for GDF-15 through interaction with the matricellular signaling molecule CCN2. Furthermore, antagonism of CCN2 mediated angiogenesis by GDF-15 may provide insight into the functional role of GDF-15 in disease states.
Collapse
Affiliation(s)
- Ramon J Whitson
- Department of Pathology, University of Colorado Denver, Anschutz Medical Campus, Aurora, Colorado 80045, USA
| | | | | |
Collapse
|
50
|
Aguiar DP, de Farias GC, de Sousa EB, de Mattos Coelho-Aguiar J, Lobo JC, Casado PL, Duarte MEL, Abreu JGR. New strategy to control cell migration and metastasis regulated by CCN2/CTGF. Cancer Cell Int 2014; 14:61. [PMID: 25120383 PMCID: PMC4130434 DOI: 10.1186/1475-2867-14-61] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Accepted: 06/21/2014] [Indexed: 12/13/2022] Open
Abstract
Connective tissue growth factor (CTGF)/CCN family member 2 (CCN2) is a CCN family member of matricellular signaling modulators. It has been shown that CCN2/CTGF mediates cell adhesion, aggregation and migration in a large variety of cell types, including vascular endothelial cells, fibroblasts, epithelial cells, aortic smooth muscle and also pluripotent stem cells. Others matricellular proteins are capable of interacting with CCN2/CTGF to mediate its function. Cell migration is a key feature for tumor cell invasion and metastasis. CCN2/CTGF seems to be a prognostic marker for cancer. In addition, here we intend to discuss recent discoveries and a new strategy to develop therapies against CCN2/CTGF, in order to treat cancer metastasis.
Collapse
Affiliation(s)
- Diego Pinheiro Aguiar
- Research Division, National Institute of Traumatology and Orthopedics, Rio de Janeiro, RJ, Brazil
| | - Gabriel Correa de Farias
- Research Division, National Institute of Traumatology and Orthopedics, Rio de Janeiro, RJ, Brazil
| | - Eduardo Branco de Sousa
- Research Division, National Institute of Traumatology and Orthopedics, Rio de Janeiro, RJ, Brazil
| | - Juliana de Mattos Coelho-Aguiar
- Program of Cell and Developmental Biology, Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Julie Calixto Lobo
- Research Division, National Institute of Traumatology and Orthopedics, Rio de Janeiro, RJ, Brazil
| | - Priscila Ladeira Casado
- Research Division, National Institute of Traumatology and Orthopedics, Rio de Janeiro, RJ, Brazil
| | | | - José Garcia Ribeiro Abreu
- Program of Cell and Developmental Biology, Institute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| |
Collapse
|