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Arif E, Solanki AK, Rahman B, Wolf B, Schnellmann RG, Nihalani D, Lipschutz JH. Role of the β 2-adrenergic receptor in podocyte injury and recovery. Pharmacol Rep 2024; 76:612-621. [PMID: 38668812 PMCID: PMC11126448 DOI: 10.1007/s43440-024-00594-5] [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: 12/07/2023] [Revised: 03/28/2024] [Accepted: 04/03/2024] [Indexed: 05/25/2024]
Abstract
BACKGROUND Podocytes have a remarkable ability to recover from injury; however, little is known about the recovery mechanisms involved in this process. We recently showed that formoterol, a long-acting β2-adrenergic receptor (β2-AR) agonist, induced mitochondrial biogenesis (MB) in podocytes and led to renoprotection in mice. However, it is not clear whether this effect was mediated by formoterol acting through the β2-AR or if it occurred through "off-target" effects. METHODS We genetically deleted the β2-AR specifically in murine podocytes and used these mice to determine whether formoterol acting through the podocyte β2-AR alone is sufficient for recovery of renal filtration function following injury. The podocyte-specific β2-AR knockout mice (β2-ARfl/fl/PodCre) were generated by crossing β2-AR floxed mice with podocin Cre (B6.Cg-Tg(NPHS2-cre)295Lbh/J) mice. These mice were then subjected to both acute and chronic glomerular injury using nephrotoxic serum (NTS) and adriamycin (ADR), respectively. The extent of injury was evaluated by measuring albuminuria and histological and immunostaining analysis of the murine kidney sections. RESULTS A similar level of injury was observed in β2-AR knockout and control mice; however, the β2-ARfl/fl/PodCre mice failed to recover in response to formoterol. Functional evaluation of the β2-ARfl/fl/PodCre mice following injury plus formoterol showed similar albuminuria and glomerular injury to control mice that were not treated with formoterol. CONCLUSIONS These results indicate that the podocyte β2-AR is a critical component of the recovery mechanism and may serve as a novel therapeutic target for treating podocytopathies.
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Affiliation(s)
- Ehtesham Arif
- Department of Medicine, Nephrology Division, Medical University of South Carolina, Clinical Science Building 822N, 96 Jonathan Lucas Street, Charleston, SC, 29425, USA
| | - Ashish K Solanki
- Department of Medicine, Nephrology Division, Medical University of South Carolina, Clinical Science Building 822N, 96 Jonathan Lucas Street, Charleston, SC, 29425, USA
| | - Bushra Rahman
- Department of Medicine, Nephrology Division, Medical University of South Carolina, Clinical Science Building 822N, 96 Jonathan Lucas Street, Charleston, SC, 29425, USA
| | - Bethany Wolf
- Department of Public Health Sciences, Medical University of South Carolina, Charleston, SC, USA
| | - Rick G Schnellmann
- Department of Pharmacology and Toxicology, University of Arizona, Tucson, AZ, USA
- Southern Arizona VA Health Care System, Tucson, AZ, USA
| | - Deepak Nihalani
- Department of Medicine, Nephrology Division, Medical University of South Carolina, Clinical Science Building 822N, 96 Jonathan Lucas Street, Charleston, SC, 29425, USA
| | - Joshua H Lipschutz
- Department of Medicine, Nephrology Division, Medical University of South Carolina, Clinical Science Building 822N, 96 Jonathan Lucas Street, Charleston, SC, 29425, USA.
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Włodarczyk M, Włodarczyk J, Maryńczak K, Waśniewska-Włodarczyk A, Doboszewska U, Wlaź P, Dziki Ł, Fichna J. Role of Adipose Tissue Hormones in Pathogenesis of Cryptoglandular Anal Fistula. Int J Mol Sci 2024; 25:1501. [PMID: 38338780 PMCID: PMC10855462 DOI: 10.3390/ijms25031501] [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: 09/12/2023] [Revised: 11/21/2023] [Accepted: 01/23/2024] [Indexed: 02/12/2024] Open
Abstract
The cryptoglandular perianal fistula is a common benign anorectal disorder that is managed mainly with surgery and in some cases may be an extremely challenging condition. Perianal fistulas are often characterized by significantly decreased patient quality of life. Lack of fully recognized pathogenesis of this disease makes it difficult to treat it properly. Recently, adipose tissue hormones have been proposed to play a role in the genesis of cryptoglandular anal fistulas. The expression of adipose tissue hormones and epithelial-to-mesenchymal transition (EMT) factors were characterized based on 30 samples from simple fistulas and 30 samples from complex cryptoglandular perianal fistulas harvested during surgery. Tissue levels of leptin, resistin, MMP2, and MMP9 were significantly elevated in patients who underwent operations due to complex cryptoglandular perianal fistulas compared to patients with simple fistulas. Adiponectin and E-cadherin were significantly lowered in samples from complex perianal fistulas in comparison to simple fistulas. A negative correlation between leptin and E-cadherin levels was observed. Resistin and MMP2 levels, as well as adiponectin and E-cadherin levels, were positively correlated. Complex perianal cryptoglandular fistulas have a reduced level of the anti-inflammatory adipokine adiponectin and have an increase in the levels of proinflammatory resistin and leptin. Abnormal secretion of these adipokines may affect the integrity of the EMT in the fistula tract. E-cadherin, MMP2, and MMP9 expression levels were shifted in patients with more advanced and complex perianal fistulas. Our results supporting the idea of using mesenchymal stem cells in the treatment of cryptoglandular perianal fistulas seem reasonable, but further studies are warranted.
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Affiliation(s)
- Marcin Włodarczyk
- Department of General and Oncological Surgery, Faculty of Medicine, Medical University of Lodz, Pomorska 251, 92-213 Lodz, Poland
| | - Jakub Włodarczyk
- Department of General and Oncological Surgery, Faculty of Medicine, Medical University of Lodz, Pomorska 251, 92-213 Lodz, Poland
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, Mazowiecka 6/8, 92-215 Lodz, Poland
| | - Kasper Maryńczak
- Department of General and Oncological Surgery, Faculty of Medicine, Medical University of Lodz, Pomorska 251, 92-213 Lodz, Poland
| | - Anna Waśniewska-Włodarczyk
- Department of Normal and Clinical Anatomy, Medical University of Lodz, Żeligowskiego 7/9, 90-752 Lodz, Poland
| | - Urszula Doboszewska
- Department of Pharmacobiology, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Piotr Wlaź
- Department of Animal Physiology and Pharmacology, Institute of Biological Sciences, Maria Curie-Skłodowska University, Akademicka 19, 20-033 Lublin, Poland
| | - Łukasz Dziki
- Department of General and Oncological Surgery, Faculty of Medicine, Medical University of Lodz, Pomorska 251, 92-213 Lodz, Poland
| | - Jakub Fichna
- Department of Biochemistry, Faculty of Medicine, Medical University of Lodz, Mazowiecka 6/8, 92-215 Lodz, Poland
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Yüksel H, Tunca S. Destiny of airway disease: interplay between epithelial barrier and the innate immune system. Tissue Barriers 2022; 10:2020706. [PMID: 34965848 PMCID: PMC9624204 DOI: 10.1080/21688370.2021.2020706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
When the organism encounters a foreign substance, it responds with mutual and regular interactions at different stages of the immune system. In airway diseases, the first encounter is at the epithelial level, where innate immune cells and their responses form the first leg of the protective mechanism. The most important barrier for environmental damage is the epithelial barrier. However, the epithelial barrier is not just a mechanical barrier. The formation of the microbiome on the epithelium and the tolerance or intolerance to environmental factors are vital. This vital balance is maintained between the epithelial surface and the subepithelial innate immune system. This is achieved by the epithelial line, which is a mechanical and functional barrier between them. In this respect, epithelial barrier function preservation has an important role in the development and prognosis of airway disease.
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Affiliation(s)
- Hasan Yüksel
- Faculty of Medicine, Department of Pediatric Pulmonology, Celal Bayar University, Manisa, Turkey,CONTACT Hasan Yüksel Faculty of Medicine; Department of Pediatric Pulmonology, Celal Bayar University, Manisa, Turkey
| | - Seda Tunca
- Faculty of Medicine, Department of Pediatric Allergy and Immunoogy, Celal Bayar University, Manisa, Turkey
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Fedorova O, Parfenyev S, Daks A, Shuvalov O, Barlev NA. The Role of PTEN in Epithelial–Mesenchymal Transition. Cancers (Basel) 2022; 14:cancers14153786. [PMID: 35954450 PMCID: PMC9367281 DOI: 10.3390/cancers14153786] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 07/31/2022] [Accepted: 08/02/2022] [Indexed: 11/23/2022] Open
Abstract
Simple Summary The PTEN phosphatase is a ubiquitously expressed tumor suppressor, which inhibits the PI3K/AKT pathway in the cell. The PI3K/AKT pathway is considered to be one of the main signaling pathways that drives the proliferation of cancer cells. Furthermore, the same pathway controls the epithelial–mesenchymal transition (EMT). EMT is an evolutionarily conserved developmental program, which, upon aberrant reactivation, is also involved in the formation of cancer metastases. Importantly, metastasis is the leading cause of cancer-associated deaths. In this review, we discuss the literature data that highlight the role of PTEN in EMT. Based on this knowledge, we speculate about new possible strategies for cancer treatment. Abstract Phosphatase and Tensin Homolog deleted on Chromosome 10 (PTEN) is one of the critical tumor suppressor genes and the main negative regulator of the PI3K pathway. PTEN is frequently found to be inactivated, either partially or fully, in various malignancies. The PI3K/AKT pathway is considered to be one of the main signaling cues that drives the proliferation of cells. Perhaps it is not surprising, then, that this pathway is hyperactivated in highly proliferative tumors. Importantly, the PI3K/AKT pathway also coordinates the epithelial–mesenchymal transition (EMT), which is pivotal for the initiation of metastases and hence is regarded as an attractive target for the treatment of metastatic cancer. It was shown that PTEN suppresses EMT, although the exact mechanism of this effect is still not fully understood. This review is an attempt to systematize the published information on the role of PTEN in the development of malignant tumors, with a main focus on the regulation of the PI3K/AKT pathway in EMT.
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Brandán YR, Favale NO, Pescio LG, Santacreu BJ, Guaytima EDV, Sterin-Speziale NB, Márquez MG. Influence of sphingomyelin metabolism during epithelial-mesenchymal transition associated with aging in the renal papilla. J Cell Physiol 2022; 237:3883-3899. [PMID: 35908199 DOI: 10.1002/jcp.30842] [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: 12/07/2021] [Revised: 07/08/2022] [Accepted: 07/14/2022] [Indexed: 11/11/2022]
Abstract
The renal collecting ducts (CD) are formed by a fully differentiated epithelium, and their tissue organization and function require the presence of mature cell adhesion structures. In certain circumstances, the cells can undergo de-differentiation by a process called epithelial-mesenchymal transition (EMT), in which the cells lose their epithelial phenotype and acquire the characteristics of the mesenchymal cells, which includes loss of cell-cell adhesion. We have previously shown that in renal papillary CD cells, cell adhesion structures are located in sphingomyelin (SM)-enriched plasma membrane microdomains and the inhibition of SM synthase 1 activity induced CD cells to undergo an EMT process. In the present study, we evaluated the influence of SM metabolism during the EMT of the cells that form the CD of the renal papilla during aging. To this end, primary cultures of renal papillary CD cells from young, middle-, and aged-rats were performed. By combining biochemical and immunofluorescence studies, we found experimental evidence that CD cells undergo an increase in spontaneous and reversible EMT during aging and that at least one of the reasons for this phenomenon is the decrease in SM content due to the combination of decreased SM synthase activity and an increase in SM degradation mediated by neutral sphingomyelinase. Age is a risk factor for many diseases, among which renal fibrosis is included. Our findings highlight the importance of sphingolipids and particularly SM as a modulator of the fate of CD cells and probably contribute to the development of treatments to avoid or reverse renal fibrosis during aging.
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Affiliation(s)
- Yamila Romina Brandán
- Instituto de Investigaciones en Ciencias de la Salud Humana (IICSHUM), Universidad Nacional de La Rioja, La Rioja, Argentina
| | - Nicolás Octavio Favale
- Facultad de Farmacia y Bioquímica, Cátedra de Biología Celular y Molecular, Universidad de Buenos Aires, Buenos Aires, Argentina.,Instituto de Química y Fisicoquímica Biológicas, CONICET-Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Lucila Gisele Pescio
- Facultad de Farmacia y Bioquímica, Cátedra de Biología Celular y Molecular, Universidad de Buenos Aires, Buenos Aires, Argentina.,Instituto de Química y Fisicoquímica Biológicas, CONICET-Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Bruno Jaime Santacreu
- Facultad de Farmacia y Bioquímica, Cátedra de Biología Celular y Molecular, Universidad de Buenos Aires, Buenos Aires, Argentina.,Instituto de Química y Fisicoquímica Biológicas, CONICET-Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Edith Del Valle Guaytima
- Instituto de Investigaciones en Ciencias de la Salud Humana (IICSHUM), Universidad Nacional de La Rioja, La Rioja, Argentina
| | - Norma B Sterin-Speziale
- Laboratorio Nacional de Investigación y Servicios de Péptidos y Proteínas - Espectrometría de Masa (LANAIS PROEM), Instituto de Química y Fisicoquímica Biológicas, CONICET - Universidad de Buenos Aires, Buenos Aires, Argentina
| | - María Gabriela Márquez
- Instituto de Investigaciones en Ciencias de la Salud Humana (IICSHUM), Universidad Nacional de La Rioja, La Rioja, Argentina
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Golgin Subfamily A Member 5 Is Essential for Production of Extracellular Matrix Proteins during TGF-β1-Induced Periodontal Ligament-Fibroblastic Differentiation. Stem Cells Int 2022; 2022:3273779. [PMID: 35879965 PMCID: PMC9308542 DOI: 10.1155/2022/3273779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 07/05/2022] [Indexed: 11/21/2022] Open
Abstract
Human periodontal ligament stem cells (hPDLSCs) can be differentiated into periodontal ligament- (PDL-) fibroblastic progenitors by treatment with low concentrations of transforming growth factor beta 1 (TGF-β1). Although much is known about the profibrotic effects of TGF-β1, the molecular mechanisms mediating the activation of fibroblasts in periodontal ligament-fibroblastic differentiation are not well known. Our study was to investigate the mechanism of the fibroblastic process in the periodontal ligament differentiation of hPDLSCs through the discovery of novel markers. One of the monoclonal antibodies previously established through decoy immunization was the anti-LG11 antibody, which recognized Golgi subfamily A member 5 (GOLGA5) as a PDL-fibroblastic progenitor-specific antigen. GOLGA5/LG11 was significantly upregulated in TGF-β1-induced PDL-fibroblastic progenitors and accumulated in the PDL region of the tooth root. GOLGA5 plays a role in vesicle tethering and docking between the endoplasmic reticulum and the Golgi apparatus. siRNA-mediated depletion of endogenous GOLGA5 upregulated in TGF-β1-induced PDL-fibroblastic progenitors resulted in downregulation of representative PDL-fibroblastic markers and upregulation of osteoblast markers. When the TGF-β1 signaling pathway was blocked or GOLGA5 was depleted by siRNA, the levels of extracellular matrix (ECM) proteins, such as type I collagen and fibronectin, decreased in PDL-fibroblastic progenitors. In addition, Golgi structures in the perinuclear region underwent fragmentation under these conditions. These results suggest that GOLGA5/LG11 is a PDL-fibroblastic marker with functional importance in ECM protein production and secretion, which are important processes in PDL-fibroblastic differentiation.
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Shen F, Hou X, Li T, Yu J, Chen H, Liu N, Qiu A, Zhuang S. Pharmacological and Genetic Inhibition of HDAC4 Alleviates Renal Injury and Fibrosis in Mice. Front Pharmacol 2022; 13:929334. [PMID: 35847036 PMCID: PMC9277565 DOI: 10.3389/fphar.2022.929334] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 05/16/2022] [Indexed: 11/19/2022] Open
Abstract
Histone deacetylase 4 (HDAC4) has been shown to be involved in cell proliferation, differentiation, and migration and is associated with a variety of cancers. However, the role of HDAC4 in renal fibrogenesis and its mechanisms are unclear. We assessed the role of HDAC4 and possible mechanisms of fibrosis in a murine model of kidney injury induced by unilateral ureteral obstruction (UUO) using tasquinimod, a highly selective HDAC4 inhibitor, and knockout mice with depletion of HDAC4 in renal tubular cells. UUO injury resulted in increased expression of HDAC4 and fibrotic proteins fibronectin and α-smooth muscle actin, while treatment with tasquinimod or knockout of HDAC4 significantly reduced their expression. Pharmacological and genetic inhibition of HDAC4 also decreased tubular epithelial cell arrest in the G2/M phase of the cell cycle, expression of transforming growth factor-β1 and phosphorylation of Smad3, signal transducer and activator of transcription 3, and extracellular signal-regulated kinase 1/2 in the injured kidney. Moreover, tasquinimod treatment or HDAC4 deletion inhibited UUO-induced renal tubular cell injury and apoptosis as indicated by reduced expression of neutrophil gelatinase-associated lipocalin, Bax, and inhibition of caspase-3. Finally, administration of tasquinimod or knockdown of HDAC4 prevented injury-related repression of Klotho, a renoprotective protein. Our results indicate that HDAC4 is critically involved in renal tubular injury and fibrosis and suggest that HDAC4 is a potential therapeutic target for treatment of chronic fibrotic kidney disease.
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Affiliation(s)
- Fengchen Shen
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xiying Hou
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Tingting Li
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jianjun Yu
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Huizhen Chen
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Na Liu
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Andong Qiu
- School of Life Science and Technology, Advanced Institute of Translational Medicine, Tongji University, Shanghai, China
| | - Shougang Zhuang
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
- Department of Medicine, Rhode Island Hospital and Alpert Medical School, Brown University, Providence, RI, United States
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8
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Xue L, Xu J, Lu W, Fu J, Liu Z. Iguratimod alleviates tubulo-interstitial injury in mice with lupus. Ren Fail 2022; 44:636-647. [PMID: 35387545 PMCID: PMC9004506 DOI: 10.1080/0886022x.2022.2058962] [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: 10/28/2022] Open
Abstract
INTRODUCTION Tubulo-interstitial injury is a poor prognostic factor for lupus nephritis (LN). Here, we tested whether iguratimod could inhibit tubulo-interstitial injury in LN. METHODS MRL/lpr mice, an animal model of lupus, were treated with iguratimod or vehicle solution. Pathological changes of kidney were evaluated blindly by the same pathologist. Renal type I collagen (COL-I), IgG, E-cadherin, fibroblast-specific protein 1 (FSP-1) were detected by immunofluorescence, immunohistochemical staining or quantitative real-time PCR. After treated with transforming growth factor β1 (TGF-β1) and iguratimod, E-cadherin, fibronectin, Smad2/3, p38 MAPK, p-Smad2/3, and p-p38 MAPK, β-catenin and TGF-β type II receptor (TGFβRII) in HK2 cells were measured by western blotting, quantitative real-time PCR or immunofluorescence. RESULTS Iguratimod reduced immune deposition along the tubular basement membrane, inhibited the tubulo-interstitial infiltration of inflammatory cells, and alleviated tubular injury in MRL/lpr mice. Moreover, Iguratimod eased the tubulo-interstitial deposition of collagen fibers, which was confirmed by decreased expression of COL-I. Furthermore, iguratimod suppressed the expression of FSP-1 and increased that of E-cadherin in renal tubular epithelial cells. In HK2 cells cultured with TGF-β1, iguratimod treatment not only reversed cellular morphological changes, but also prevented E-cadherin downregulation and fibronectin upregulation. In addition, iguratimod inhibited phosphorylation of TGFβRII, Smad2/3 and p38 MAPK in HK2 cells treated with TGF-β1, and also blocked nuclear translocation of β-catenin. CONCLUSION Iguratimod eased tubulo-interstitial lesions in LN, especially tubulo-interstitial fibrosis, and might have potential as a drug for inhibiting the progression of tubulo-interstitial fibrosis in LN.
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Affiliation(s)
- Leixi Xue
- Department of Rheumatology and Immunology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Jiajun Xu
- Department of Rheumatology and Immunology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Wentian Lu
- Department of Rheumatology and Immunology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Jinxiang Fu
- Department of Hematology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Zhichun Liu
- Department of Rheumatology and Immunology, The Second Affiliated Hospital of Soochow University, Suzhou, China
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Yu R, Tian M, He P, Chen J, Zhao Z, Zhang Y, Zhang B. Suppression of LMCD1 ameliorates renal fibrosis by blocking the activation of ERK pathway. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2022; 1869:119200. [PMID: 34968577 DOI: 10.1016/j.bbamcr.2021.119200] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 12/10/2021] [Accepted: 12/18/2021] [Indexed: 12/29/2022]
Abstract
Tubulointerstitial fibrosis is a common pathway of chronic kidney disease (CKD) and is closely related to the progression of CKD. LMCD1, acting as an intermediary, has been reported to play a role in cardiac fibrosis. However, its role in renal fibrosis is yet to be deciphered. Based on the GEO database, we found the expression of LMCD1 is increased in kidney tissues of CKD patients and in human proximal tubular epithelial (HK-2) cells treated with transforming growth factor-β1 (TGF-β1), suggesting that LMCD1 may be involved in tubulointerstitial fibrosis. Herein, we investigated the role of LMCD1 in mice with unilateral ureteral obstruction (UUO) and in TGF-β1-stimulated HK-2 cells. In the UUO model, the expression of LMCD1 was upregulated. UUO-induced renal histopathological changes were mitigated by knockdown of LMCD1. LMCD1 silence alleviated renal interstitial fibrosis in UUO mice by decreasing the expression of TGF-β1, fibronectin, collagen I, and collagen III. LMCD1 deficiency suppressed cell apoptosis in kidney to prevent UUO-triggered renal injury. Furthermore, LMCD1 deficiency blocked the activation of ERK signaling in UUO mice. In vitro, LMCD1 was upregulated in HK-2 cells after TGF-β1 stimulation. LMCD1 silence abrogated TGF-β1-mediated upregulation of fibrotic genes. Treatment of HK-2 cells with ERK-specific inhibitor SCH772984 and agonist TPA validated LMCD1 exerted its function via activating ERK signaling. Together, our findings suggest that inhibition of LMCD1 protects against renal interstitial fibrosis by impeding ERK activation.
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Affiliation(s)
- Rui Yu
- Department of Nephrology, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning, China
| | - Mi Tian
- Department of Nephrology, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning, China
| | - Ping He
- Department of Nephrology, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning, China
| | - Jie Chen
- Department of Nephrology, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning, China
| | - Zixia Zhao
- Department of Nephrology, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning, China
| | - Yongzhe Zhang
- Department of Nephrology, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning, China
| | - Beiru Zhang
- Department of Nephrology, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning, China.
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10
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Zhao R, Trainor PA. Epithelial to mesenchymal transition during mammalian neural crest cell delamination. Semin Cell Dev Biol 2022; 138:54-67. [PMID: 35277330 DOI: 10.1016/j.semcdb.2022.02.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 02/08/2022] [Accepted: 02/21/2022] [Indexed: 11/18/2022]
Abstract
Epithelial to mesenchymal transition (EMT) is a well-defined cellular process that was discovered in chicken embryos and described as "epithelial to mesenchymal transformation" [1]. During EMT, epithelial cells lose their epithelial features and acquire mesenchymal character with migratory potential. EMT has subsequently been shown to be essential for both developmental and pathological processes including embryo morphogenesis, wound healing, tissue fibrosis and cancer [2]. During the past 5 years, interest and study of EMT especially in cancer biology have increased exponentially due to the implied role of EMT in multiple aspects of malignancy such as cell invasion, survival, stemness, metastasis, therapeutic resistance and tumor heterogeneity [3]. Since the process of EMT in embryogenesis and cancer progression shares similar phenotypic changes, core transcription factors and molecular mechanisms, it has been proposed that the initiation and development of carcinoma could be attributed to abnormal activation of EMT factors usually required for normal embryo development. Therefore, developmental EMT mechanisms, whose timing, location, and tissue origin are strictly regulated, could prove useful for uncovering new insights into the phenotypic changes and corresponding gene regulatory control of EMT under pathological conditions. In this review, we initially provide an overview of the phenotypic and molecular mechanisms involved in EMT and discuss the newly emerging concept of epithelial to mesenchymal plasticity (EMP). Then we focus on our current knowledge of a classic developmental EMT event, neural crest cell (NCC) delamination, highlighting key differences in our understanding of NCC EMT between mammalian and non-mammalian species. Lastly, we highlight available tools and future directions to advance our understanding of mammalian NCC EMT.
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Affiliation(s)
- Ruonan Zhao
- Stowers Institute for Medical Research, Kansas City, MO, USA; Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, KS, USA
| | - Paul A Trainor
- Stowers Institute for Medical Research, Kansas City, MO, USA; Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, KS, USA.
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Caparrós E, Wiest R, Scharl M, Rogler G, Gutiérrez Casbas A, Yilmaz B, Wawrzyniak M, Francés R. Dysbiotic microbiota interactions in Crohn's disease. Gut Microbes 2021; 13:1949096. [PMID: 34313550 PMCID: PMC8320851 DOI: 10.1080/19490976.2021.1949096] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Crohn's disease (CD) is a major form of inflammatory bowel disease characterized by transmural inflammation along the alimentary tract. Changes in the microbial composition and reduction in species diversity are recognized as pivotal hallmarks in disease dynamics, challenging the gut barrier function and shaping a pathological immune response in genetically influenced subjects. The purpose of this review is to delve into the modification of the gut microbiota cluster network during CD progression and to discuss how this shift compromises the gut barrier integrity, granting the translocation of microbes and their products. We then complete the scope of the review by retracing gut microbiota dysbiosis interactions with the main pathophysiologic factors of CD, starting from the host's genetic background to the immune inflammatory and fibrotic processes, providing a standpoint on the lifestyle/exogenous factors and the potential benefits of targeting a specific gut microbiota.
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Affiliation(s)
- Esther Caparrós
- Dpto Medicina Clínica, Universidad Miguel Hernández, San Juan De Alicante, Spain,Iis Isabial, Hospital General Universitario De Alicante, Alicante, Spain
| | - Reiner Wiest
- Department for Biomedical Research, Department of Visceral Surgery and Medicine, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Michael Scharl
- Department of Gastroenterology and Hepatology, University Hospital of Zurich, University of Zurich, Zurich, Switzerland
| | - Gerhard Rogler
- Department of Gastroenterology and Hepatology, University Hospital of Zurich, University of Zurich, Zurich, Switzerland
| | - Ana Gutiérrez Casbas
- Iis Isabial, Hospital General Universitario De Alicante, Alicante, Spain,CIBERehd, Instituto De Salud Carlos III, Madrid, Spain
| | - Bahtiyar Yilmaz
- Department for Biomedical Research, Department of Visceral Surgery and Medicine, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Marcin Wawrzyniak
- Department of Gastroenterology and Hepatology, University Hospital of Zurich, University of Zurich, Zurich, Switzerland
| | - Rubén Francés
- Dpto Medicina Clínica, Universidad Miguel Hernández, San Juan De Alicante, Spain,Iis Isabial, Hospital General Universitario De Alicante, Alicante, Spain,CIBERehd, Instituto De Salud Carlos III, Madrid, Spain,CONTACT Rubén Francés Hepatic and Intestinal Immunobiology Group. Departamento De Medicina Clínica, Universidad Miguel Hernández De Elche. Carretera Alicante-Valencia, Km 8,703550San Juan De Alicante
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12
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Miyano T, Suzuki A, Sakamoto N. Hyperosmotic stress induces epithelial-mesenchymal transition through rearrangements of focal adhesions in tubular epithelial cells. PLoS One 2021; 16:e0261345. [PMID: 34932568 PMCID: PMC8691603 DOI: 10.1371/journal.pone.0261345] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 11/30/2021] [Indexed: 01/06/2023] Open
Abstract
Epithelial-mesenchymal transition (EMT) of tubular epithelial cells is a hallmark of renal tubulointerstitial fibrosis and is associated with chronic renal injury as well as acute renal injury. As one of the incidences and risk factors for acute renal injury, increasing the osmolality in the proximal tubular fluid by administration of intravenous mannitol has been reported, but the detailed mechanisms remain unclear. Hyperosmotic conditions caused by mannitol in the tubular tissue may generate not only osmotic but also mechanical stresses, which are known to be able to induce EMT in epithelial cells, thereby contributing to renal injury. Herein, we investigate the effect of hyperosmolarity on EMT in tubular epithelial cells. Normal rat kidney (NRK)-52E cells were exposed to mannitol-induced hyperosmotic stress. Consequently, the hyperosmotic stress led to a reduced expression of the epithelial marker E-cadherin and an enhanced expression of the mesenchymal marker, α-smooth muscle actin (α-SMA), which indicates an initiation of EMT in NKR-52E cells. The hyperosmotic condition also induced time-dependent disassembly and rearrangements of focal adhesions (FAs) concomitant with changes in actin cytoskeleton. Moreover, prevention of FAs rearrangements by cotreatment with Y-27632, a Rho-associated protein kinase inhibitor, could abolish the effects of hyperosmotic mannitol treatment, thus attenuating the expression of α-SMA to the level in nontreated cells. These results suggest that hyperosmotic stress may induce EMT through FAs rearrangement in proximal tubular epithelial cells.
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Affiliation(s)
- Takashi Miyano
- Department of Mechanical Systems Engineering, Graduate School of Systems Design, Tokyo Metropolitan University, Tokyo, Japan
| | - Atsushi Suzuki
- Department of Mechanical Systems Engineering, Graduate School of Systems Design, Tokyo Metropolitan University, Tokyo, Japan
| | - Naoya Sakamoto
- Department of Mechanical Systems Engineering, Graduate School of Systems Design, Tokyo Metropolitan University, Tokyo, Japan
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13
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Mohamed RH, Sedky AA, Hamam GG, Elkhateb L, Kamar SA, Adel S, Tawfik SS. Sitagliptin's renoprotective effect in a diabetic nephropathy model in rats: The potential role of PI3K/AKT pathway. Fundam Clin Pharmacol 2021; 36:324-337. [PMID: 34735026 DOI: 10.1111/fcp.12736] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 11/01/2021] [Indexed: 12/11/2022]
Abstract
Management of diabetic nephropathy (DN) is far from satisfactory. There is a rising role of the involvement of phosphatidylinositol 3-kinase (PI3K)/protein kinase B (AKT) pathway in the pathogenesis of DN. This study aimed at investigating the renoprotective effects of PI3K/AKT pathway via sitagliptin in a rat model of DN. Thirty-two male Wistar rats were divided into four groups (eight rats each): (I) control, (II) sitagliptin, (III) DN, and (IV) DN + sitagliptin. Fasting blood glucose (FBG), kidney index, and kidney function tests in both blood and urine were measured. The levels of superoxide dismutase (SOD), tumor necrosis factor-alpha (TNF-α), and transforming growth factor-beta (TGF-β) and gene expressions of PI3K, pPI3K, AKT, and pAKT in renal tissue were detected. Renal histopathological and immunohistochemical studies were evaluated. DN + sitagliptin group showed significant decrease in FBG and kidney index, improvement in kidney function tests, and a decrease in levels of TNF-α and TGF-β in renal tissues compared with DN group. This was associated with significant increase in SOD and gene expressions of PI3K and AKT and their phosphorylated active forms in renal tissue in DN + sitagliptin group compared with DN group. Moreover, DN + sitagliptin group showed apparent decrease in amount of collagen fibers and expression of alpha-smooth muscle actin (α-SMA) compared with DN group. This work shows that sitagliptin improved renal functions and histopathological changes, impeded inflammation, and oxidative stress and upregulated PI3K/AKT pathway which highlights its renoprotective effects in a rat model of DN.
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Affiliation(s)
- Reham Hussein Mohamed
- Department of Clinical Pharmacology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Amina Ahmed Sedky
- Department of Clinical Pharmacology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Ghada Galal Hamam
- Department of Histology and cell biology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Lobna Elkhateb
- Department of Histology and cell biology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Sherif A Kamar
- Department of Anatomy, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Seham Adel
- Department of Biochemistry, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Sherin Shafik Tawfik
- Department of Clinical Pharmacology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
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14
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Nagavally RR, Sunilkumar S, Akhtar M, Trombetta LD, Ford SM. Chrysin Ameliorates Cyclosporine-A-Induced Renal Fibrosis by Inhibiting TGF-β 1-Induced Epithelial-Mesenchymal Transition. Int J Mol Sci 2021; 22:ijms221910252. [PMID: 34638597 PMCID: PMC8508845 DOI: 10.3390/ijms221910252] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 09/13/2021] [Accepted: 09/16/2021] [Indexed: 01/27/2023] Open
Abstract
Cyclosporine A (CsA) is a nephrotoxicant that causes fibrosis via induction of epithelial-mesenchymal transition (EMT). The flavonoid chrysin has been reported to have anti-fibrotic activity and inhibit signaling pathways that are activated during EMT. This study investigated the nephroprotective role of chrysin in the prevention of CsA-induced renal fibrosis and elucidated a mechanism of inhibition against CsA-induced EMT in proximal tubule cells. Treatment with chrysin prevented CsA-induced renal dysfunction in Sprague Dawley rats measured by blood urea nitrogen (BUN), serum creatinine and creatinine clearance. Chrysin inhibited CsA-induced tubulointerstitial fibrosis, characterized by reduced tubular damage and collagen deposition. In vitro, chrysin significantly inhibited EMT in LLC-PK1 cells, evidenced by inhibition of cell migration, decreased collagen expression, reduced presence of mesenchymal markers and elevated epithelial junction proteins. Furthermore, chrysin co-treatment diminished CsA-induced TGF-β1 signaling pathways, decreasing Smad 3 phosphorylation which lead to a subsequent reduction in Snail expression. Chrysin also inhibited activation of the Akt/ GSK-3β pathway. Inhibition of both pathways diminished the cytosolic accumulation of β-catenin, a known trigger for EMT. In conclusion, flavonoids such as chrysin offer protection against CsA-induced renal dysfunction and interstitial fibrosis. Chrysin was shown to inhibit CsA-induced TGF-β1-dependent EMT in proximal tubule cells by modulation of Smad-dependent and independent signaling pathways.
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Affiliation(s)
- Rohan Reddy Nagavally
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John’s University, Queens, NY 11439, USA; (R.R.N.); (S.S.); (M.A.); (L.D.T.)
- Viatris Inc., 1000 Mylan Blvd, Canonsburg, PA 15317, USA
| | - Siddharth Sunilkumar
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John’s University, Queens, NY 11439, USA; (R.R.N.); (S.S.); (M.A.); (L.D.T.)
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, PA 17033, USA
| | - Mumtaz Akhtar
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John’s University, Queens, NY 11439, USA; (R.R.N.); (S.S.); (M.A.); (L.D.T.)
| | - Louis D. Trombetta
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John’s University, Queens, NY 11439, USA; (R.R.N.); (S.S.); (M.A.); (L.D.T.)
| | - Sue M. Ford
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John’s University, Queens, NY 11439, USA; (R.R.N.); (S.S.); (M.A.); (L.D.T.)
- Correspondence: ; Tel.: +1-71-8990-6220
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15
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Morciano G, Vezzani B, Missiroli S, Boncompagni C, Pinton P, Giorgi C. An Updated Understanding of the Role of YAP in Driving Oncogenic Responses. Cancers (Basel) 2021; 13:cancers13123100. [PMID: 34205830 PMCID: PMC8234554 DOI: 10.3390/cancers13123100] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/09/2021] [Accepted: 06/17/2021] [Indexed: 12/13/2022] Open
Abstract
Simple Summary In 2020, the global cancer database GLOBOCAN estimated 19.3 million new cancer cases worldwide. The discovery of targeted therapies may help prognosis and outcome of the patients affected, but the understanding of the plethora of highly interconnected pathways that modulate cell transformation, proliferation, invasion, migration and survival remains an ambitious goal. Here we propose an updated state of the art of YAP as the key protein driving oncogenic response via promoting all those steps at multiple levels. Of interest, the role of YAP in immunosuppression is a field of evolving research and growing interest and this summary about the current pharmacological therapies impacting YAP serves as starting point for future studies. Abstract Yes-associated protein (YAP) has emerged as a key component in cancer signaling and is considered a potent oncogene. As such, nuclear YAP participates in complex and only partially understood molecular cascades that are responsible for the oncogenic response by regulating multiple processes, including cell transformation, tumor growth, migration, and metastasis, and by acting as an important mediator of immune and cancer cell interactions. YAP is finely regulated at multiple levels, and its localization in cells in terms of cytoplasm–nucleus shuttling (and vice versa) sheds light on interesting novel anticancer treatment opportunities and putative unconventional functions of the protein when retained in the cytosol. This review aims to summarize and present the state of the art knowledge about the role of YAP in cancer signaling, first focusing on how YAP differs from WW domain-containing transcription regulator 1 (WWTR1, also named as TAZ) and which upstream factors regulate it; then, this review focuses on the role of YAP in different cancer stages and in the crosstalk between immune and cancer cells as well as growing translational strategies derived from its inhibitory and synergistic effects with existing chemo-, immuno- and radiotherapies.
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16
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Miranda MZ, Lichner Z, Szászi K, Kapus A. MRTF: Basic Biology and Role in Kidney Disease. Int J Mol Sci 2021; 22:ijms22116040. [PMID: 34204945 PMCID: PMC8199744 DOI: 10.3390/ijms22116040] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 05/21/2021] [Accepted: 05/30/2021] [Indexed: 12/23/2022] Open
Abstract
A lesser known but crucially important downstream effect of Rho family GTPases is the regulation of gene expression. This major role is mediated via the cytoskeleton, the organization of which dictates the nucleocytoplasmic shuttling of a set of transcription factors. Central among these is myocardin-related transcription factor (MRTF), which upon actin polymerization translocates to the nucleus and binds to its cognate partner, serum response factor (SRF). The MRTF/SRF complex then drives a large cohort of genes involved in cytoskeleton remodeling, contractility, extracellular matrix organization and many other processes. Accordingly, MRTF, activated by a variety of mechanical and chemical stimuli, affects a plethora of functions with physiological and pathological relevance. These include cell motility, development, metabolism and thus metastasis formation, inflammatory responses and—predominantly-organ fibrosis. The aim of this review is twofold: to provide an up-to-date summary about the basic biology and regulation of this versatile transcriptional coactivator; and to highlight its principal involvement in the pathobiology of kidney disease. Acting through both direct transcriptional and epigenetic mechanisms, MRTF plays a key (yet not fully appreciated) role in the induction of a profibrotic epithelial phenotype (PEP) as well as in fibroblast-myofibroblast transition, prime pathomechanisms in chronic kidney disease and renal fibrosis.
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Affiliation(s)
- Maria Zena Miranda
- Keenan Research Centre for Biomedical Science of the St. Michael’s Hospital, Toronto, ON M5B 1W8, Canada; (M.Z.M.); (Z.L.); (K.S.)
| | - Zsuzsanna Lichner
- Keenan Research Centre for Biomedical Science of the St. Michael’s Hospital, Toronto, ON M5B 1W8, Canada; (M.Z.M.); (Z.L.); (K.S.)
| | - Katalin Szászi
- Keenan Research Centre for Biomedical Science of the St. Michael’s Hospital, Toronto, ON M5B 1W8, Canada; (M.Z.M.); (Z.L.); (K.S.)
- Department of Surgery, University of Toronto, Toronto, ON M5T 1P5, Canada
| | - András Kapus
- Keenan Research Centre for Biomedical Science of the St. Michael’s Hospital, Toronto, ON M5B 1W8, Canada; (M.Z.M.); (Z.L.); (K.S.)
- Department of Surgery, University of Toronto, Toronto, ON M5T 1P5, Canada
- Department of Biochemistry, University of Toronto, Toronto, ON M5S 1A8, Canada
- Correspondence:
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17
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Marconi GD, Fonticoli L, Rajan TS, Lanuti P, Della Rocca Y, Pierdomenico SD, Trubiani O, Pizzicannella J, Diomede F. Transforming Growth Factor-Beta1 and Human Gingival Fibroblast-to-Myofibroblast Differentiation: Molecular and Morphological Modifications. Front Physiol 2021; 12:676512. [PMID: 34093237 PMCID: PMC8176099 DOI: 10.3389/fphys.2021.676512] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 04/01/2021] [Indexed: 12/22/2022] Open
Abstract
After oral mucosal injury, the healing response following specific steps that lead to wound closure and to tissue repair. Multiple cell populations are involved in this process; in particular, fibroblasts play a key role in the production of extracellular matrix (ECM). During wound healing the remodeling of ECM is a key stage to restore the tissue functionality through multifunctional fibroblast populations that are placed in the connective tissues of gingiva and periodontal ligament. Notably, a fibroblast sub-type (myofibroblast) is centrally involved in collagen synthesis and fibrillar remodeling. The present work evidenced the role of Transforming Growth Factor-beta1 (TGF-β1) to mediate human gingival fibroblasts (hGFs) differentiation into myofibroblasts derived from gingival fibroblasts (myo-hGFs). The morphological and functional features were analyzed through Confocal Laser Scanning Microscopy (CLSM), flow cytometry, and western blotting analyses. The specific markers, such as alpha-Smooth Muscle Actin (α-SMA), Vimentin, E-cadherin, β-catenin, and Smad 2/3, were modulated in myo-hGFs after the induction with TGF-β1, at different time points (24, 48, and 72 h). After 72 h of treatment TGF-β1 operates as an inducer of hGFs into myo-hGFs differentiation. We propose that TGF-β1 may promote in vitro the fibroblasts-to-myofibroblasts transition via the morphological and molecular modifications, as the induction of α-SMA, Vimentin, E-cadherin, β-catenin, and Smad 2/3.
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Affiliation(s)
- Guya D Marconi
- Department of Medical, Oral and Biotechnological Sciences, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - Luigia Fonticoli
- Department of Innovative Technologies in Medicine and Dentistry, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | | | - Paola Lanuti
- Department of Medicine and Aging Sciences, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy.,Center for Advanced Studies and Technology (CAST), "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - Ylenia Della Rocca
- Department of Innovative Technologies in Medicine and Dentistry, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - Sante D Pierdomenico
- Department of Innovative Technologies in Medicine and Dentistry, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - Oriana Trubiani
- Department of Innovative Technologies in Medicine and Dentistry, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | | | - Francesca Diomede
- Department of Innovative Technologies in Medicine and Dentistry, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
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18
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Liu Y, Wang C, Wei M, Yang G, Yuan L. Multifaceted Roles of Adipose Tissue-Derived Exosomes in Physiological and Pathological Conditions. Front Physiol 2021; 12:669429. [PMID: 33959041 PMCID: PMC8093393 DOI: 10.3389/fphys.2021.669429] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 03/23/2021] [Indexed: 12/25/2022] Open
Abstract
Adipose tissue functions importantly in the bodily homeostasis and systemic metabolism, while obesity links to multiple disorders. Beyond the canonical hormones, growth factors and cytokines, exosomes have been identified to play important roles in transmission of information from adipose tissue to other organs. Exosomes are nanoscale membrane vesicles secreted by donor cells, and transfer the genetic information to the recipient cells where the encapsulated nucleic acids and proteins are released. In this review, we elaborate the recent advances in the biogenesis and profiling of adipose tissue derived exosomes, and their physiological and pathological effects on different organs. Moreover, the potential significance of the exosomes as therapeutic vehicles or drugs is also discussed.
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Affiliation(s)
- Yunnan Liu
- Department of Ultrasound Diagnostics, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Chen Wang
- Department of Ultrasound Diagnostics, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Mengying Wei
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, China
| | - Guodong Yang
- State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, China
| | - Lijun Yuan
- Department of Ultrasound Diagnostics, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
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19
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Chen Y, Wu B, He JF, Chen J, Kang ZW, Liu D, Luo J, Fang K, Leng X, Tian H, Xu J, Jin C, Zhang J, Wang J, Zhang J, Ou Q, Lu L, Gao F, Xu GT. Effectively Intervening Epithelial-Mesenchymal Transition of Retinal Pigment Epithelial Cells With a Combination of ROCK and TGF-β Signaling Inhibitors. Invest Ophthalmol Vis Sci 2021; 62:21. [PMID: 33861322 PMCID: PMC8083104 DOI: 10.1167/iovs.62.4.21] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Purpose Epithelial-mesenchymal transition (EMT) of retinal pigment epithelial (RPE) cells is a key pathological event in proliferative retinal diseases such as proliferative vitreoretinopathy (PVR). This study aimed to explore a new method to reverse EMT in RPE cells to develop an improved therapy for proliferative retinal diseases. Methods In vitro, human embryonic stem cell-derived RPE cells were passaged and cultured at low density for an extended period of time to establish an EMT model. At different stages of EMT after treatment with known molecules or combinations of molecules, the morphology was examined, transepithelial electrical resistance (TER) was measured, and expression of RPE- and EMT-related genes were examined with RT-PCR, Western blotting, and immunofluorescence. In vivo, a rat model of EMT in RPE cells was established via subretinal injection of dispase. Retinal function was examined by electroretinography (ERG), and retinal morphology was examined. Results EMT of RPE cells was effectively induced by prolonged low-density culture. After EMT occurred, only the combination of the Rho-associated coiled-coil containing protein kinase (ROCK) inhibitor Y27632 and the TGF-β receptor inhibitor RepSox (RY treatment) effectively suppressed and reversed the EMT process, even in cells in an intermediate state of EMT. In dispase-treated Sprague-Dawley rats, RY treatment maintained the morphology of RPE cells and the retina and preserved retinal function. Conclusions RY treatment might promote mesenchymal-epithelial transition (MET), the inverse process of EMT, to maintain the epithelial-like morphology and function of RPE cells. This combined RY therapy could be a new strategy for treating proliferative retinal diseases, especially those involving EMT of RPE cells.
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Affiliation(s)
- Yi Chen
- Department of Ophthalmology of Shanghai Tenth People's Hospital, and Tongji Eye Institute, and Department of Pharmacology, Tongji University School of Medicine, Shanghai, China.,Department of Biochemistry and Molecular Biology, Tongji University School of Medicine, Shanghai, China
| | - Binxin Wu
- Department of Ophthalmology of Shanghai Tenth People's Hospital, and Tongji Eye Institute, and Department of Pharmacology, Tongji University School of Medicine, Shanghai, China.,Department of Biochemistry and Molecular Biology, Tongji University School of Medicine, Shanghai, China
| | - Jian Feng He
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jingyao Chen
- Department of Ophthalmology of Shanghai Tenth People's Hospital, and Tongji Eye Institute, and Department of Pharmacology, Tongji University School of Medicine, Shanghai, China
| | - Zi Wei Kang
- Department of Ophthalmology of Shanghai Tenth People's Hospital, and Tongji Eye Institute, and Department of Pharmacology, Tongji University School of Medicine, Shanghai, China
| | - Dandan Liu
- Department of Ophthalmology of Shanghai Tenth People's Hospital, and Tongji Eye Institute, and Department of Pharmacology, Tongji University School of Medicine, Shanghai, China
| | - Junjie Luo
- Department of Ophthalmology of Shanghai Tenth People's Hospital, and Tongji Eye Institute, and Department of Pharmacology, Tongji University School of Medicine, Shanghai, China
| | - Kexin Fang
- Department of Ophthalmology of Shanghai Tenth People's Hospital, and Tongji Eye Institute, and Department of Pharmacology, Tongji University School of Medicine, Shanghai, China
| | - Xiaoxu Leng
- Department of Ophthalmology of Shanghai Tenth People's Hospital, and Tongji Eye Institute, and Department of Pharmacology, Tongji University School of Medicine, Shanghai, China
| | - Haibin Tian
- Department of Ophthalmology of Shanghai Tenth People's Hospital, and Tongji Eye Institute, and Department of Pharmacology, Tongji University School of Medicine, Shanghai, China.,Department of Biochemistry and Molecular Biology, Tongji University School of Medicine, Shanghai, China
| | - Jingying Xu
- Department of Ophthalmology of Shanghai Tenth People's Hospital, and Tongji Eye Institute, and Department of Pharmacology, Tongji University School of Medicine, Shanghai, China.,Department of Biochemistry and Molecular Biology, Tongji University School of Medicine, Shanghai, China
| | - Caixia Jin
- Department of Ophthalmology of Shanghai Tenth People's Hospital, and Tongji Eye Institute, and Department of Pharmacology, Tongji University School of Medicine, Shanghai, China.,Department of Biochemistry and Molecular Biology, Tongji University School of Medicine, Shanghai, China
| | - Jieping Zhang
- Department of Ophthalmology of Shanghai Tenth People's Hospital, and Tongji Eye Institute, and Department of Pharmacology, Tongji University School of Medicine, Shanghai, China.,Department of Biochemistry and Molecular Biology, Tongji University School of Medicine, Shanghai, China
| | - Juan Wang
- Department of Ophthalmology of Shanghai Tenth People's Hospital, and Tongji Eye Institute, and Department of Pharmacology, Tongji University School of Medicine, Shanghai, China.,Department of Biochemistry and Molecular Biology, Tongji University School of Medicine, Shanghai, China
| | - Jingfa Zhang
- Department of Ophthalmology of Shanghai Tenth People's Hospital, and Tongji Eye Institute, and Department of Pharmacology, Tongji University School of Medicine, Shanghai, China.,Department of Biochemistry and Molecular Biology, Tongji University School of Medicine, Shanghai, China
| | - Qingjian Ou
- Department of Ophthalmology of Shanghai Tenth People's Hospital, and Tongji Eye Institute, and Department of Pharmacology, Tongji University School of Medicine, Shanghai, China.,Department of Biochemistry and Molecular Biology, Tongji University School of Medicine, Shanghai, China
| | - Lixia Lu
- Department of Ophthalmology of Shanghai Tenth People's Hospital, and Tongji Eye Institute, and Department of Pharmacology, Tongji University School of Medicine, Shanghai, China.,Department of Biochemistry and Molecular Biology, Tongji University School of Medicine, Shanghai, China
| | - Furong Gao
- Department of Ophthalmology of Shanghai Tenth People's Hospital, and Tongji Eye Institute, and Department of Pharmacology, Tongji University School of Medicine, Shanghai, China.,Department of Biochemistry and Molecular Biology, Tongji University School of Medicine, Shanghai, China
| | - Guo-Tong Xu
- Department of Ophthalmology of Shanghai Tenth People's Hospital, and Tongji Eye Institute, and Department of Pharmacology, Tongji University School of Medicine, Shanghai, China.,Department of Biochemistry and Molecular Biology, Tongji University School of Medicine, Shanghai, China
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20
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Hosio M, Jaks V, Lagus H, Vuola J, Ogawa R, Kankuri E. Primary Ciliary Signaling in the Skin-Contribution to Wound Healing and Scarring. Front Cell Dev Biol 2020; 8:578384. [PMID: 33282860 PMCID: PMC7691485 DOI: 10.3389/fcell.2020.578384] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 10/08/2020] [Indexed: 12/21/2022] Open
Abstract
Primary cilia (PC) are solitary, post-mitotic, microtubule-based, and membrane-covered protrusions that are found on almost every mammalian cell. PC are specialized cellular sensory organelles that transmit environmental information to the cell. Signaling through PC is involved in the regulation of a variety of cellular processes, including proliferation, differentiation, and migration. Conversely, defective, or abnormal PC signaling can contribute to the development of various pathological conditions. Our knowledge of the role of PC in organ development and function is largely based on ciliopathies, a family of genetic disorders with mutations affecting the structure and function of PC. In this review, we focus on the role of PC in their major signaling pathways active in skin cells, and their contribution to wound healing and scarring. To provide comprehensive insights into the current understanding of PC functions, we have collected data available in the literature, including evidence across cell types, tissues, and animal species. We conclude that PC are underappreciated subcellular organelles that significantly contribute to both physiological and pathological processes of the skin development and wound healing. Thus, PC assembly and disassembly and PC signaling may serve as attractive targets for antifibrotic and antiscarring therapies.
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Affiliation(s)
- Mayu Hosio
- Faculty of Medicine, Department of Pharmacology, University of Helsinki, Helsinki, Finland
| | - Viljar Jaks
- Institute of Molecular and Cell Biology, University of Tartu, Tartu, Estonia
- Dermatology Clinic, Tartu University Hospital, Tartu, Estonia
| | - Heli Lagus
- Department of Plastic Surgery and Wound Healing Centre, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Jyrki Vuola
- Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Rei Ogawa
- Department of Plastic, Reconstructive and Aesthetic Surgery, Nippon Medical School, Tokyo, Japan
| | - Esko Kankuri
- Faculty of Medicine, Department of Pharmacology, University of Helsinki, Helsinki, Finland
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21
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Heydarpour F, Sajadimajd S, Mirzarazi E, Haratipour P, Joshi T, Farzaei MH, Khan H, Echeverría J. Involvement of TGF-β and Autophagy Pathways in Pathogenesis of Diabetes: A Comprehensive Review on Biological and Pharmacological Insights. Front Pharmacol 2020; 11:498758. [PMID: 33041786 PMCID: PMC7522371 DOI: 10.3389/fphar.2020.498758] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 08/27/2020] [Indexed: 12/21/2022] Open
Abstract
Despite recent advancements in clinical drugs, diabetes treatment still needs further progress. As such, ongoing research has attempted to determine the precise molecular mechanisms of the disorder. Specifically, evidence supports that several signaling pathways play pivotal roles in the development of diabetes. However, the exact molecular mechanisms of diabetes still need to be explored. This study examines exciting new hallmarks for the strict involvement of autophagy and TGF-β signaling pathways in the pathogenesis of diabetes and the design of novel therapeutic strategies. Dysregulated autophagy in pancreatic β cells due to hyperglycemia, oxidative stress, and inflammation is associated with diabetes and accompanied by dysregulated autophagy in insulin target tissues and the progression of diabetic complications. Consequently, several therapeutic agents such as adiponectin, ezetimibe, GABA tea, geniposide, liraglutide, guava extract, and vitamin D were shown to inhibit diabetes and its complications through modulation of the autophagy pathway. Another pathway, TGF-β signaling pathway, appears to play a part in the progression of diabetes, insulin resistance, and autoimmunity in both type 1 and 2 diabetes and complications in diabetes. Subsequently, drugs that target TGF-β signaling, especially naturally derived ones such as resveratrol, puerarin, curcumin, hesperidin, and silymarin, as well as Propolis, Lycopus lucidus, and Momordica charantia extracts, may become promising alternatives to current drugs in diabetes treatment. This review provides keen insights into novel therapeutic strategies for the medical care of diabetes.
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Affiliation(s)
- Fatemeh Heydarpour
- Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Soraya Sajadimajd
- Departament of Biology, Faculty of Sciences, Razi University, Kermanshah, Iran
| | - Elahe Mirzarazi
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | - Pouya Haratipour
- Department of Chemistry, Sharif University of Technology, Tehran, Iran.,PhytoPharmacology Interest Group (PPIG), Universal Scientific Education and Research Network (USERN), Los Angeles, CA, United States
| | - Tanuj Joshi
- Department of Pharmaceutical Sciences, Faculty of Technology, Kumaun University, Nainital, India
| | - Mohammad Hosein Farzaei
- Pharmaceutical Sciences Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Haroon Khan
- Department of Pharmacy, Abdul Wali Khan University, Mardan, Pakistan
| | - Javier Echeverría
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
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22
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Bozic M, Caus M, Rodrigues-Diez RR, Pedraza N, Ruiz-Ortega M, Garí E, Gallel P, Panadés MJ, Martinez A, Fernández E, Valdivielso JM. Protective role of renal proximal tubular alpha-synuclein in the pathogenesis of kidney fibrosis. Nat Commun 2020; 11:1943. [PMID: 32327648 PMCID: PMC7181766 DOI: 10.1038/s41467-020-15732-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 03/24/2020] [Indexed: 12/26/2022] Open
Abstract
Kidney fibrosis is a highly deleterious process and a final manifestation of chronic kidney disease. Alpha-(α)-synuclein (SNCA) is an actin-binding neuronal protein with various functions within the brain; however, its role in other tissues is unknown. Here, we describe the expression of SNCA in renal epithelial cells and demonstrate its decrease in renal tubules of murine and human fibrotic kidneys, as well as its downregulation in renal proximal tubular epithelial cells (RPTECs) after TGF-β1 treatment. shRNA-mediated knockdown of SNCA in RPTECs results in de novo expression of vimentin and α-SMA, while SNCA overexpression represses TGF-β1-induced mesenchymal markers. Conditional gene silencing of SNCA in RPTECs leads to an exacerbated tubulointerstitial fibrosis (TIF) in two unrelated in vivo fibrotic models, which is associated with an increased activation of MAPK-p38 and PI3K-Akt pathways. Our study provides an evidence that disruption of SNCA signaling in RPTECs contributes to the pathogenesis of renal TIF by facilitating partial epithelial-to-mesenchymal transition and extracellular matrix accumulation.
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Affiliation(s)
- Milica Bozic
- Vascular and Renal Translational Research Group, Institute for Biomedical Research in Lleida (IRBLleida) and RedInRen Retic, ISCIII, Spain.
| | - Maite Caus
- Vascular and Renal Translational Research Group, Institute for Biomedical Research in Lleida (IRBLleida) and RedInRen Retic, ISCIII, Spain
| | - Raul R Rodrigues-Diez
- Cellular and Molecular Biology in Renal and Vascular Pathology, IIS-Fundación Jiménez Díaz-Universidad Autónoma Madrid, Madrid, Spain
| | - Neus Pedraza
- Cell Cycle, Department of Basic Medical Science, IRBLleida, University of Lleida, Lleida, Spain
| | - Marta Ruiz-Ortega
- Cellular and Molecular Biology in Renal and Vascular Pathology, IIS-Fundación Jiménez Díaz-Universidad Autónoma Madrid, Madrid, Spain
| | - Eloi Garí
- Cell Cycle, Department of Basic Medical Science, IRBLleida, University of Lleida, Lleida, Spain
| | - Pilar Gallel
- Department of Pathology and Molecular Genetics, University Hospital Arnau de Vilanova and University of Lleida, IRBLleida, Spain
| | - Maria José Panadés
- Department of Pathology and Molecular Genetics, University Hospital Arnau de Vilanova and University of Lleida, IRBLleida, Spain
| | - Ana Martinez
- Vascular and Renal Translational Research Group, Institute for Biomedical Research in Lleida (IRBLleida) and RedInRen Retic, ISCIII, Spain
| | - Elvira Fernández
- Vascular and Renal Translational Research Group, Institute for Biomedical Research in Lleida (IRBLleida) and RedInRen Retic, ISCIII, Spain
| | - José Manuel Valdivielso
- Vascular and Renal Translational Research Group, Institute for Biomedical Research in Lleida (IRBLleida) and RedInRen Retic, ISCIII, Spain.
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23
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Jasemi SV, Khazaei H, Aneva IY, Farzaei MH, Echeverría J. Medicinal Plants and Phytochemicals for the Treatment of Pulmonary Hypertension. Front Pharmacol 2020; 11:145. [PMID: 32226378 PMCID: PMC7080987 DOI: 10.3389/fphar.2020.00145] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 02/04/2020] [Indexed: 12/18/2022] Open
Abstract
Background Pulmonary hypertension (PH) is a progressive disease that is associated with pulmonary arteries remodeling, right ventricle hypertrophy, right ventricular failure and finally death. The present study aims to review the medicinal plants and phytochemicals used for PH treatment in the period of 1994 – 2019. Methods PubMed, Cochrane and Scopus were searched based on pulmonary hypertension, plant and phytochemical keywords from August 23, 2019. All articles that matched the study based on title and abstract were collected, non-English, repetitive and review studies were excluded. Results Finally 41 studies remained from a total of 1290. The results show that many chemical treatments considered to this disease are ineffective in the long period because they have a controlling role, not a therapeutic one. On the other hand, plants and phytochemicals could be more effective due to their action on many mechanisms that cause the progression of PH. Conclusion Studies have shown that herbs and phytochemicals used to treat PH do their effects from six mechanisms. These mechanisms include antiproliferative, antioxidant, antivascular remodeling, anti-inflammatory, vasodilatory and apoptosis inducing actions. According to the present study, many of these medicinal plants and phytochemicals can have effects that are more therapeutic than chemical drugs if used appropriately.
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Affiliation(s)
- Seyed Vahid Jasemi
- Department of Internal Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Hosna Khazaei
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Ina Yosifova Aneva
- Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Mohammad Hosein Farzaei
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Javier Echeverría
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
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24
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Mapping lung cancer epithelial-mesenchymal transition states and trajectories with single-cell resolution. Nat Commun 2019; 10:5587. [PMID: 31811131 PMCID: PMC6898514 DOI: 10.1038/s41467-019-13441-6] [Citation(s) in RCA: 118] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 10/30/2019] [Indexed: 01/01/2023] Open
Abstract
Elucidating the spectrum of epithelial-mesenchymal transition (EMT) and mesenchymal-epithelial transition (MET) states in clinical samples promises insights on cancer progression and drug resistance. Using mass cytometry time-course analysis, we resolve lung cancer EMT states through TGFβ-treatment and identify, through TGFβ-withdrawal, a distinct MET state. We demonstrate significant differences between EMT and MET trajectories using a computational tool (TRACER) for reconstructing trajectories between cell states. In addition, we construct a lung cancer reference map of EMT and MET states referred to as the EMT-MET PHENOtypic STAte MaP (PHENOSTAMP). Using a neural net algorithm, we project clinical samples onto the EMT-MET PHENOSTAMP to characterize their phenotypic profile with single-cell resolution in terms of our in vitro EMT-MET analysis. In summary, we provide a framework to phenotypically characterize clinical samples in the context of in vitro EMT-MET findings which could help assess clinical relevance of EMT in cancer in future studies. Intermediate transitions between epithelial and mesenchymal states are associated with tumor progression. Here using mass cytometry, Plevritis and colleagues develop a computational framework to resolve and map these trajectories in lung cancer cells and clinical specimens.
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25
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Dan Q, Shi Y, Rabani R, Venugopal S, Xiao J, Anwer S, Ding M, Speight P, Pan W, Alexander RT, Kapus A, Szászi K. Claudin-2 suppresses GEF-H1, RHOA, and MRTF, thereby impacting proliferation and profibrotic phenotype of tubular cells. J Biol Chem 2019; 294:15446-15465. [PMID: 31481470 DOI: 10.1074/jbc.ra118.006484] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 08/21/2019] [Indexed: 12/19/2022] Open
Abstract
The tight junctional pore-forming protein claudin-2 (CLDN-2) mediates paracellular Na+ and water transport in leaky epithelia and alters cancer cell proliferation. Previously, we reported that tumor necrosis factor-α time-dependently alters CLDN-2 expression in tubular epithelial cells. Here, we found a similar expression pattern in a mouse kidney injury model (unilateral ureteral obstruction), consisting of an initial increase followed by a drop in CLDN-2 protein expression. CLDN-2 silencing in LLC-PK1 tubular cells induced activation and phosphorylation of guanine nucleotide exchange factor H1 (GEF-H1), leading to Ras homolog family member A (RHOA) activation. Silencing of other claudins had no such effects, and re-expression of an siRNA-resistant CLDN-2 prevented RHOA activation, indicating specific effects of CLDN-2 on RHOA. Moreover, kidneys from CLDN-2 knockout mice had elevated levels of active RHOA. Of note, CLDN-2 silencing reduced LLC-PK1 cell proliferation and elevated expression of cyclin-dependent kinase inhibitor P27 (P27KIP1) in a GEF-H1/RHOA-dependent manner. P27KIP1 silencing abrogated the effects of CLDN-2 depletion on proliferation. CLDN-2 loss also activated myocardin-related transcription factor (MRTF), a fibrogenic RHOA effector, and elevated expression of connective tissue growth factor and smooth muscle actin. Finally, CLDN-2 down-regulation contributed to RHOA activation and smooth muscle actin expression induced by prolonged tumor necrosis factor-α treatment, because they were mitigated by re-expression of CLDN-2. Our results indicate that CLDN-2 suppresses GEF-H1/RHOA. CLDN-2 down-regulation, for example, by inflammation, can reduce proliferation and promote MRTF activation through RHOA. These findings suggest that the initial CLDN-2 elevation might aid epithelial regeneration, and CLDN-2 loss could contribute to fibrotic reprogramming.
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Affiliation(s)
- Qinghong Dan
- Keenan Research Centre for Biomedical Science at St. Michael's Hospital, University of Toronto, Ontario M5B 1T8, Canada
| | - Yixuan Shi
- Keenan Research Centre for Biomedical Science at St. Michael's Hospital, University of Toronto, Ontario M5B 1T8, Canada
| | - Razieh Rabani
- Keenan Research Centre for Biomedical Science at St. Michael's Hospital, University of Toronto, Ontario M5B 1T8, Canada
| | - Shruthi Venugopal
- Keenan Research Centre for Biomedical Science at St. Michael's Hospital, University of Toronto, Ontario M5B 1T8, Canada
| | - Jenny Xiao
- Keenan Research Centre for Biomedical Science at St. Michael's Hospital, University of Toronto, Ontario M5B 1T8, Canada
| | - Shaista Anwer
- Keenan Research Centre for Biomedical Science at St. Michael's Hospital, University of Toronto, Ontario M5B 1T8, Canada
| | - Mei Ding
- Keenan Research Centre for Biomedical Science at St. Michael's Hospital, University of Toronto, Ontario M5B 1T8, Canada
| | - Pam Speight
- Keenan Research Centre for Biomedical Science at St. Michael's Hospital, University of Toronto, Ontario M5B 1T8, Canada
| | - Wanling Pan
- Departments of Pediatrics and Physiology, University of Alberta, Edmonton, Alberta T6G 2R3, Canada
| | - R Todd Alexander
- Departments of Pediatrics and Physiology, University of Alberta, Edmonton, Alberta T6G 2R3, Canada
| | - András Kapus
- Keenan Research Centre for Biomedical Science at St. Michael's Hospital, University of Toronto, Ontario M5B 1T8, Canada.,Department of Surgery, University of Toronto, Ontario M5B 1T8, Canada
| | - Katalin Szászi
- Keenan Research Centre for Biomedical Science at St. Michael's Hospital, University of Toronto, Ontario M5B 1T8, Canada .,Department of Surgery, University of Toronto, Ontario M5B 1T8, Canada
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26
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McFaline-Figueroa JL, Hill AJ, Qiu X, Jackson D, Shendure J, Trapnell C. A pooled single-cell genetic screen identifies regulatory checkpoints in the continuum of the epithelial-to-mesenchymal transition. Nat Genet 2019; 51:1389-1398. [PMID: 31477929 PMCID: PMC6756480 DOI: 10.1038/s41588-019-0489-5] [Citation(s) in RCA: 109] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 07/23/2019] [Indexed: 12/20/2022]
Abstract
Integrating single-cell trajectory analysis with pooled genetic screening could reveal the genetic architecture that guides cellular decisions in development and disease. We applied this paradigm to probe the genetic circuitry that controls epithelial-to-mesenchymal transition (EMT). We used single-cell RNA sequencing to profile epithelial cells undergoing a spontaneous spatially determined EMT in the presence or absence of transforming growth factor-β. Pseudospatial trajectory analysis identified continuous waves of gene regulation as opposed to discrete 'partial' stages of EMT. KRAS was connected to the exit from the epithelial state and the acquisition of a fully mesenchymal phenotype. A pooled single-cell CRISPR-Cas9 screen identified EMT-associated receptors and transcription factors, including regulators of KRAS, whose loss impeded progress along the EMT. Inhibiting the KRAS effector MEK and its upstream activators EGFR and MET demonstrates that interruption of key signaling events reveals regulatory 'checkpoints' in the EMT continuum that mimic discrete stages, and reconciles opposing views of the program that controls EMT.
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Affiliation(s)
| | - Andrew J Hill
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | - Xiaojie Qiu
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
- Department of Cellular and Molecular Pharmacology, University of California, San Francisco, CA, USA
| | - Dana Jackson
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | - Jay Shendure
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
- Brotman Baty Institute for Precision Medicine, Seattle, WA, USA
- Howard Hughes Medical Institute, Seattle, WA, USA
- Allen Discovery Center for Cell Lineage Tracing, Seattle, WA, USA
| | - Cole Trapnell
- Department of Genome Sciences, University of Washington, Seattle, WA, USA.
- Brotman Baty Institute for Precision Medicine, Seattle, WA, USA.
- Allen Discovery Center for Cell Lineage Tracing, Seattle, WA, USA.
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27
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Li S, Ghoshal S, Sojoodi M, Arora G, Masia R, Erstad DJ, Ferriera DS, Li Y, Wang G, Lanuti M, Caravan P, Or YS, Jiang LJ, Tanabe KK, Fuchs BC. The farnesoid X receptor agonist EDP-305 reduces interstitial renal fibrosis in a mouse model of unilateral ureteral obstruction. FASEB J 2019; 33:7103-7112. [PMID: 30884252 PMCID: PMC8793835 DOI: 10.1096/fj.201801699r] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 02/14/2019] [Indexed: 08/15/2023]
Abstract
Farnesoid X receptor (FXR) is a nuclear receptor that has emerged as a key regulator in the maintenance of hepatic steatosis, inflammation, and fibrosis. However, the role of FXR in renal fibrosis remains to be established. Here, we investigate the effects of the FXR agonist EDP-305 in a mouse model of tubulointerstitial fibrosis via unilateral ureteral obstruction (UUO). Male C57Bl/6 mice received a UUO on their left kidney. On postoperative d 4, mice received daily treatment by oral gavage with either vehicle control (0.5% methylcellulose) or 10 or 30 mg/kg EDP-305. All animals were euthanized on postoperative d 12. EDP-305 dose-dependently decreased macrophage infiltration as measured by the F4/80 staining area and proinflammatory cytokine gene expression. EDP-305 also dose-dependently reduced interstitial fibrosis as assessed by morphometric quantification of the collagen proportional area and kidney hydroxyproline levels. Finally, yes-associated protein (YAP) activation, a major driver of fibrosis, increased after UUO injury and was diminished by EDP-305 treatment. Consistently, EDP-305 decreased TGF-β1-induced YAP nuclear localization in human kidney 2 cells by increasing inhibitory YAP phosphorylation. YAP inhibition may be a novel antifibrotic mechanism of FXR agonism, and EDP-305 could be used to treat renal fibrosis.-Li, S., Ghoshal, S., Sojoodi, M., Arora, G., Masia, R., Erstad, D. J., Ferriera, D. S., Li, Y., Wang, G., Lanuti, M., Caravan, P., Or, Y. S., Jiang, L.-J., Tanabe, K. K., Fuchs, B. C. The farnesoid X receptor agonist EDP-305 reduces interstitial renal fibrosis in a mouse model of unilateral ureteral obstruction.
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Affiliation(s)
- Shen Li
- Division of Surgical OncologyMassachusetts General Hospital Cancer CenterHarvard Medical SchoolBostonMassachusettsUSA
| | - Sarani Ghoshal
- Division of Surgical OncologyMassachusetts General Hospital Cancer CenterHarvard Medical SchoolBostonMassachusettsUSA
| | - Mozhdeh Sojoodi
- Division of Surgical OncologyMassachusetts General Hospital Cancer CenterHarvard Medical SchoolBostonMassachusettsUSA
| | - Gunisha Arora
- Division of Surgical OncologyMassachusetts General Hospital Cancer CenterHarvard Medical SchoolBostonMassachusettsUSA
| | - Ricard Masia
- Department of PathologyMassachusetts General Hospital Cancer CenterHarvard Medical SchoolBostonMassachusettsUSA
| | - Derek J. Erstad
- Division of Surgical OncologyMassachusetts General Hospital Cancer CenterHarvard Medical SchoolBostonMassachusettsUSA
| | - Diego S. Ferriera
- Martinos Center for Biomedical ImagingMassachusetts General HospitalHarvard Medical SchoolCharlestownMassachusettsUSA
| | - Yang Li
- Enanta PharmaceuticalsWatertownMassachusettsUSA
| | | | - Michael Lanuti
- Division of Surgical OncologyMassachusetts General Hospital Cancer CenterHarvard Medical SchoolBostonMassachusettsUSA
| | - Peter Caravan
- Institute for Innovation in ImagingMassachusetts General Hospital Cancer CenterHarvard Medical SchoolBostonMassachusettsUSA
- Martinos Center for Biomedical ImagingMassachusetts General HospitalHarvard Medical SchoolCharlestownMassachusettsUSA
| | - Yat Sun Or
- Enanta PharmaceuticalsWatertownMassachusettsUSA
| | | | - Kenneth K. Tanabe
- Division of Surgical OncologyMassachusetts General Hospital Cancer CenterHarvard Medical SchoolBostonMassachusettsUSA
| | - Bryan C. Fuchs
- Division of Surgical OncologyMassachusetts General Hospital Cancer CenterHarvard Medical SchoolBostonMassachusettsUSA
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28
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Cabezas F, Farfán P, Marzolo MP. Participation of the SMAD2/3 signalling pathway in the down regulation of megalin/LRP2 by transforming growth factor beta (TGF-ß1). PLoS One 2019; 14:e0213127. [PMID: 31120873 PMCID: PMC6532859 DOI: 10.1371/journal.pone.0213127] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 05/08/2019] [Indexed: 12/19/2022] Open
Abstract
Megalin/LRP2 is a receptor that plays important roles in the physiology of several organs, such as kidney, lung, intestine, and gallbladder and also in the physiology of the nervous system. Megalin expression is reduced in diseases associated with fibrosis, including diabetic nephropathy, hepatic fibrosis and cholelithiasis, as well as in some breast and prostate cancers. One of the hallmarks of these conditions is the presence of the cytokine transforming growth factor beta (TGF-ß). Although TGF-ß has been implicated in the reduction of megalin levels, the molecular mechanism underlying this regulation is not well understood. Here, we show that treatment of two epithelial cell lines (from kidney and gallbladder) with TGF-ß1 is associated with decreased megalin mRNA and protein levels, and that these effects are reversed by inhibiting the TGF-ß1 type I receptor (TGF-ßRI). Based on in silico analyses, the two SMAD-binding elements (SBEs) in the megalin promoter are located at positions -57 and -605. Site-directed mutagenesis of the SBEs and chromatin immunoprecipitation (ChIP) experiments revealed that SMAD2/3 transcription factors interact with SBEs. Both the presence of SMAD2/3 and intact SBEs were associated with repression of the megalin promoter, in the absence as well in the presence of TGF-ß1. Also, reduced megalin expression and promoter activation triggered by high concentration of albumin are dependent on the expression of SMAD2/3. Interestingly, the histone deacetylase inhibitor Trichostatin A (TSA), which induces megalin expression, reduced the effects of TGF-ß1 on megalin mRNA levels. These data show the significance of TGF-ß and the SMAD2/3 signalling pathway in the regulation of megalin and explain the decreased megalin levels observed under conditions in which TGF-ß is upregulated, including fibrosis-associated diseases and cancer.
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Affiliation(s)
- Felipe Cabezas
- Laboratorio de Tráfico Intracelular y Señalización, Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Pamela Farfán
- Laboratorio de Tráfico Intracelular y Señalización, Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - María-Paz Marzolo
- Laboratorio de Tráfico Intracelular y Señalización, Departamento de Biología Celular y Molecular, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
- * E-mail:
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29
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Profibrotic epithelial phenotype: a central role for MRTF and TAZ. Sci Rep 2019; 9:4323. [PMID: 30867502 PMCID: PMC6416270 DOI: 10.1038/s41598-019-40764-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 02/19/2019] [Indexed: 01/05/2023] Open
Abstract
Epithelial injury is a key initiator of fibrosis but - in contrast to the previous paradigm - the epithelium in situ does not undergo wide-spread epithelial-mesenchymal/myofibroblast transition (EMT/EMyT). Instead, it assumes a Profibrotic Epithelial Phenotype (PEP) characterized by fibrogenic cytokine production. The transcriptional mechanisms underlying PEP are undefined. As we have shown that two RhoA/cytoskeleton-regulated transcriptional coactivators, Myocardin-related transcription factor (MRTF) and TAZ, are indispensable for EMyT, we asked if they might mediate PEP as well. Here we show that mechanical stress (cyclic stretch) increased the expression of transforming growth factor-β1 (TGFβ1), connective tissue growth factor (CTGF), platelet-derived growth factor and Indian Hedgehog mRNA in LLC-PK1 tubular cells. These responses were mitigated by siRNA-mediated silencing or pharmacological inhibition of MRTF (CCG-1423) or TAZ (verteporfin). RhoA inhibition exerted similar effects. Unilateral ureteral obstruction, a murine model of mechanically-triggered kidney fibrosis, induced tubular RhoA activation along with overexpression/nuclear accumulation of MRTF and TAZ, and increased transcription of the above-mentioned cytokines. Laser capture microdissection revealed TAZ, TGFβ1 and CTGF induction specifically in the tubular epithelium. CCG-1423 suppressed total renal and tubular expression of these proteins. Thus, MRTF regulates epithelial TAZ expression, and both MRTF and TAZ are critical mediators of PEP-related epithelial cytokine production.
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30
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Gao Q, Yang Z, Xu S, Li X, Yang X, Jin P, Liu Y, Zhou X, Zhang T, Gong C, Wei X, Liu D, Sun C, Chen G, Hu J, Meng L, Zhou J, Sawada K, Fruscio R, Grunt TW, Wischhusen J, Vargas-Hernández VM, Pothuri B, Coleman RL. Heterotypic CAF-tumor spheroids promote early peritoneal metastatis of ovarian cancer. J Exp Med 2019; 216:688-703. [PMID: 30710055 PMCID: PMC6400537 DOI: 10.1084/jem.20180765] [Citation(s) in RCA: 146] [Impact Index Per Article: 29.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 09/02/2018] [Accepted: 10/12/2018] [Indexed: 12/15/2022] Open
Abstract
The study provides insights in HGSOC by identifying that ascitic CAFs selectively recruit ITGA5high ascitic tumor cells to form heterotypic spheroids named metastatic units (MUs), which actively engage in peritoneal metastasis, discriminates HGSOC from LGSOC, and act as therapeutic targets in hampering OC metastasis. High-grade serous ovarian cancer (HGSOC) is hallmarked by early onset of peritoneal dissemination, which distinguishes it from low-grade serous ovarian cancer (LGSOC). Here, we describe the aggressive nature of HGSOC ascitic tumor cells (ATCs) characterized by integrin α5high (ITGA5high) ATCs, which are prone to forming heterotypic spheroids with fibroblasts. We term these aggregates as metastatic units (MUs) in HGSOC for their advantageous metastatic capacity and active involvement in early peritoneal dissemination. Intriguingly, fibroblasts inside MUs support ATC survival and guide their peritoneal invasion before becoming essential components of the tumor stroma in newly formed metastases. Cancer-associated fibroblasts (CAFs) recruit ITGA5high ATCs to form MUs, which further sustain ATC ITGA5 expression by EGF secretion. Notably, LGSOC is largely devoid of CAFs and the resultant MUs, which might explain its metastatic delay. These findings identify a specialized MU architecture that amplifies the tumor–stroma interaction and promotes transcoelomic metastasis in HGSOC, providing the basis for stromal fibroblast-oriented interventions in hampering OC peritoneal propagation.
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Affiliation(s)
- Qinglei Gao
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Zongyuan Yang
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Sen Xu
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xiaoting Li
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xin Yang
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Ping Jin
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Yi Liu
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xiaoshui Zhou
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Taoran Zhang
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Cheng Gong
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Xiao Wei
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Dan Liu
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Chaoyang Sun
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Gang Chen
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Junbo Hu
- Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Li Meng
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jianfeng Zhou
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Kenjiro Sawada
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, Yamadaoka Suita, Osaka, Japan
| | - Robert Fruscio
- Clinic of Obstetrics and Gynecology, San Gerardo Hospital, Monza, Italy.,Department of Medicine and Surgery, University of Milan-Bicocca, Milan, Italy
| | - Thomas W Grunt
- Signaling Networks Program, Division of Oncology, Department of Medicine I, Comprehensive Cancer Center & Ludwig Boltzmann Cluster Oncology, Medical University of Vienna, Vienna, Austria
| | - Jörg Wischhusen
- Department of Obstetrics and Gynecology, Experimental Tumor Immunology, University of Würzburg Medical School, Würzburg, Germany
| | | | - Bhavana Pothuri
- Division of Gynecological Oncology, NYU Langone Medical Center, Perlmutter Cancer Center, New York, NY
| | - Robert L Coleman
- Department of Gynecological Oncology & Reproductive Medicine, University of Texas, M.D. Anderson Cancer Center, Houston, TX
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31
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Zang T, Cuttle L, Broszczak DA, Broadbent JA, Tanzer C, Parker TJ. Characterization of the Blister Fluid Proteome for Pediatric Burn Classification. J Proteome Res 2019; 18:69-85. [PMID: 30520305 DOI: 10.1021/acs.jproteome.8b00355] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Blister fluid (BF) is a novel and viable research matrix for burn injury study, which can reflect both systemic and local microenvironmental responses. The protein abundance in BF from different burn severities were initially observed using a 2D SDS-PAGE approach. Subsequently, a quantitative data independent acquisition (DIA) method, SWATH, was employed to characterize the proteome of pediatric burn blister fluid. More than 600 proteins were quantitatively profiled in 87 BF samples from different pediatric burn patients. These data were correlated with clinically assessed burn depth and time until complete wound re-epithelialization through several different statistical analyses. Several proteins from these analyses exhibited significant abundance change between different burn depth or re-epithelialization groups, and can be considered as potential biomarker candidates. Further gene ontology (GO) enrichment analysis of the significant proteins revealed the most significant burn related biological processes (BP) that are altered with burn depth, including homeostasis and oxygen transport. However, for wounds with re-epithelialization times more or less than 21 days, the significant GO annotations were related to enzyme activity. This quantitative proteomics investigation of burn BF may enable objective classification of burn wound severity and assist with clinical decision-making. Data are available via ProteomeXchange with identifier PXD011102.
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Affiliation(s)
- Tuo Zang
- Tissue Repair and Translational Physiology Program , Institute of Health and Biomedical Innovation, Queensland University of Technology , Kelvin Grove , Queensland 4059 , Australia.,School of Biomedical Sciences, Faculty of Health , Queensland University of Technology , Brisbane , Queensland 4000 , Australia.,Wound Management Innovation Co-operative Research Centre , Brisbane , Queensland 4000 , Australia
| | - Leila Cuttle
- Tissue Repair and Translational Physiology Program , Institute of Health and Biomedical Innovation, Queensland University of Technology , Kelvin Grove , Queensland 4059 , Australia.,School of Biomedical Sciences, Faculty of Health , Queensland University of Technology , Brisbane , Queensland 4000 , Australia.,Centre for Children's Burns and Trauma Research, Queensland University of Technology , Institute of Health and Biomedical Innovation at the Centre for Children's Health Research , South Brisbane , Queensland 4101 , Australia
| | - Daniel A Broszczak
- Tissue Repair and Translational Physiology Program , Institute of Health and Biomedical Innovation, Queensland University of Technology , Kelvin Grove , Queensland 4059 , Australia.,School of Biomedical Sciences, Faculty of Health , Queensland University of Technology , Brisbane , Queensland 4000 , Australia.,School of Science, Faculty of Health Sciences , Australian Catholic University , Brisbane , Queensland 4014 , Australia
| | - James A Broadbent
- Tissue Repair and Translational Physiology Program , Institute of Health and Biomedical Innovation, Queensland University of Technology , Kelvin Grove , Queensland 4059 , Australia.,School of Biomedical Sciences, Faculty of Health , Queensland University of Technology , Brisbane , Queensland 4000 , Australia
| | - Catherine Tanzer
- Tissue Repair and Translational Physiology Program , Institute of Health and Biomedical Innovation, Queensland University of Technology , Kelvin Grove , Queensland 4059 , Australia.,Wound Management Innovation Co-operative Research Centre , Brisbane , Queensland 4000 , Australia.,Centre for Children's Burns and Trauma Research, Queensland University of Technology , Institute of Health and Biomedical Innovation at the Centre for Children's Health Research , South Brisbane , Queensland 4101 , Australia
| | - Tony J Parker
- Tissue Repair and Translational Physiology Program , Institute of Health and Biomedical Innovation, Queensland University of Technology , Kelvin Grove , Queensland 4059 , Australia.,School of Biomedical Sciences, Faculty of Health , Queensland University of Technology , Brisbane , Queensland 4000 , Australia
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32
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Xiao Q, Guan Y, Li C, Liu L, Zhao D, Wang H. Decreased expression of transforming growth factor-β1 and α-smooth muscle actin contributes to the protection of lotensin against chronic renal failure in rats. Ren Fail 2018; 40:583-589. [PMID: 30371125 PMCID: PMC6211277 DOI: 10.1080/0886022x.2018.1496934] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Background: Lotensin has been shown to have a protective function in the early stage of chronic renal failure. However, its role in the intermediate and late stages of chronic renal failure remains largely unknown. The present study aimed to investigate the role and underlying mechanism of lotensin in advanced chronic kidney disease. Methods: Female Wistar rats were randomly divided into three groups (n = 10): sham group, 5/6 nephrectomy (5/6 Nx) group, and lotensin group (oral administration of lotensin for 9 weeks following 5/6 Nx). Rats were sacrificed and pathological parameters were measured. Western blot assay and immunohistochemical staining were performed to detect the expression of transforming growth factor-β1 (TGF-β1) and α-smooth muscle actin (α-SMA) in kidney tissues. Results: Compared to the 5/6 Nx group, lotensin administration significantly decreased 5/6 Nx-induced elevation in blood urea nitrogen, serum creatinine and 24-h urinary protein excretion (UPE) rates, but markedly increased red blood cell count, plasma albumin and hemoglobin levels, along with improved renal morphology. Mechanistically, lotensin dramatically downregulated the renal expression of TGF-β1 and α-SMA induced by 5/6 Nx. Conclusions: Lotensin protects against advanced chronic kidney disease in rats with 5/6 Nx through the downregulation of TGF-β1 and α-SMA.
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Affiliation(s)
- Qingfei Xiao
- a Department of Nephrology , The First Hospital of Jilin University , Changchun , China
| | - Yinghui Guan
- b Department of Respiration , The First Hospital of Jilin University , Changchun , China
| | - Chenhao Li
- a Department of Nephrology , The First Hospital of Jilin University , Changchun , China
| | - Li Liu
- a Department of Nephrology , The First Hospital of Jilin University , Changchun , China
| | - Dan Zhao
- c Central Laboratory , Third Hospital of Jilin University , Changchun , China
| | - Hongyue Wang
- a Department of Nephrology , The First Hospital of Jilin University , Changchun , China
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33
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Sharma S, Goswami R, Rahaman SO. The TRPV4-TAZ mechanotransduction signaling axis in matrix stiffness- and TGFβ1-induced epithelial-mesenchymal transition. Cell Mol Bioeng 2018; 12:139-152. [PMID: 31681446 DOI: 10.1007/s12195-018-00565-w] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Introduction The implantation of biomaterials into soft tissue leads to the development of foreign body response, a non-specific inflammatory condition that is characterized by the presence of fibrotic tissue. Epithelial-mesenchymal transition (EMT) is a key event in development, fibrosis, and oncogenesis. Emerging data support a role for both a mechanical signal and a biochemical signal in EMT. We hypothesized that transient receptor potential vanilloid 4 (TRPV4), a mechanosensitive channel, is a mediator of EMT. Methods Normal human primary epidermal keratinocytes (NHEKs) were seeded on collagen-coated plastic plates or varied stiffness polyacrylamide gels in the presence or absence of TGFβ1, Immunofluorescence, immunoblot, and polymerase chain reaction analysis were performed to determine expression level of EMT markers and signaling proteins. Knock-down of TRPV4 function was achieved by siRNA transfection or by GSK2193874 treatment. Results We found that knock-down of TRPV4 blocked both matrix stiffness- and TGFβ1-induced EMT in NHEKs. In a murine skin fibrosis model, TRPV4 deletion resulted in decreased expression of the mesenchymal marker, α-SMA, and increased expression of epithelial marker, E-cadherin. Mechanistically, our data showed that: i) TRPV4 was essential for the nuclear translocation of TAZ in response to matrix stiffness and TGFβ1; ii) Antagonism of TRPV4 inhibited both matrix stiffness-induced and TGFβ1-induced expression of TAZ proteins; and iii) TRPV4 antagonism suppressed both matrix stiffness-induced and TGFβ1-induced activation of Smad2/3, but not of AKT. Conclusions These data identify a novel role for TRPV4-TAZ mechanotransduction signaling axis in regulating EMT in NHEKs in response to both matrix stiffness and TGFβ1.
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Affiliation(s)
- Shweta Sharma
- Department of Nutrition and Food Science, University of Maryland, College Park, MD 20742 USA
| | - Rishov Goswami
- Department of Nutrition and Food Science, University of Maryland, College Park, MD 20742 USA
| | - Shaik O Rahaman
- Department of Nutrition and Food Science, University of Maryland, College Park, MD 20742 USA
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Nilchian A, Johansson J, Ghalali A, Asanin ST, Santiago A, Rosencrantz O, Sollerbrant K, Vincent CT, Sund M, Stenius U, Fuxe J. CXADR-Mediated Formation of an AKT Inhibitory Signalosome at Tight Junctions Controls Epithelial-Mesenchymal Plasticity in Breast Cancer. Cancer Res 2018; 79:47-60. [PMID: 30385615 DOI: 10.1158/0008-5472.can-18-1742] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 09/26/2018] [Accepted: 10/24/2018] [Indexed: 11/16/2022]
Abstract
Tight junctions (TJ) act as hubs for intracellular signaling pathways controlling epithelial cell fate and function. Deregulation of TJ is a hallmark of epithelial-mesenchymal transition (EMT), which contributes to carcinoma progression and metastasis. However, the signaling mechanisms linking TJ to the induction of EMT are not understood. Here, we identify a TJ-based signalosome, which controls AKT signaling and EMT in breast cancer. The coxsackie and adenovirus receptor (CXADR), a TJ protein with an essential yet uncharacterized role in organogenesis and tissue homeostasis, was identified as a key component of the signalosome. CXADR regulated the stability and function of the phosphatases and AKT inhibitors PTEN and PHLPP2. Loss of CXADR led to hyperactivation of AKT and sensitized cells to TGFβ1-induced EMT. Conversely, restoration of CXADR stabilized PHLPP2 and PTEN, inhibited AKT, and promoted epithelial differentiation. Loss of CXADR in luminal A breast cancer correlated with loss of PHLPP2 and PTEN and poor prognosis. These results show that CXADR promotes the formation of an AKT-inhibitory signalosome at TJ and regulates epithelial-mesenchymal plasticity in breast cancer cells. Moreover, loss of CXADR might be used as a prognostic marker in luminal breast cancer. SIGNIFICANCE: The tight junction protein CXADR controls epithelial-mesenchymal plasticity in breast cancer by stabilizing the AKT regulators PTEN and PHLPP2.Graphical Abstract: http://cancerres.aacrjournals.org/content/canres/79/1/47/F1.large.jpg.
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Affiliation(s)
- Azadeh Nilchian
- Department of Microbiology, Tumor and Cell biology (MTC), Karolinska Institutet, Stockholm, Sweden
| | - Joel Johansson
- Department of Microbiology, Tumor and Cell biology (MTC), Karolinska Institutet, Stockholm, Sweden
| | - Aram Ghalali
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Sandra T Asanin
- Department of Microbiology, Tumor and Cell biology (MTC), Karolinska Institutet, Stockholm, Sweden
| | - Ana Santiago
- Department of Microbiology, Tumor and Cell biology (MTC), Karolinska Institutet, Stockholm, Sweden
| | - Oskar Rosencrantz
- Department of Microbiology, Tumor and Cell biology (MTC), Karolinska Institutet, Stockholm, Sweden
| | - Kerstin Sollerbrant
- Department of Women's and Children's Health, Karolinska Institutet and University Hospital, Stockholm, Sweden
| | - C Theresa Vincent
- Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden.,Department of Physiology and Biophysics, Weill Cornell Medicine, New York, New York.,Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | - Malin Sund
- Department of Surgical and Perioperative Sciences, Umea University, Umea, Sweden
| | - Ulla Stenius
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Jonas Fuxe
- Department of Microbiology, Tumor and Cell biology (MTC), Karolinska Institutet, Stockholm, Sweden.
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35
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Zahir-Jouzdani F, Khonsari F, Soleimani M, Mahbod M, Arefian E, Heydari M, Shahhosseini S, Dinarvand R, Atyabi F. Nanostructured lipid carriers containing rapamycin for prevention of corneal fibroblasts proliferation and haze propagation after burn injuries: In vitro and in vivo. J Cell Physiol 2018; 234:4702-4712. [PMID: 30191977 DOI: 10.1002/jcp.27243] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 07/25/2018] [Indexed: 01/25/2023]
Abstract
Chemical burns are a major cause of corneal haze and blindness. Corticosteroids are commonly used after corneal burns to attenuate the severity of the inflammation-related fibrosis. While research efforts have been aimed toward application of novel therapeutics. In the current study, a novel drug delivery system based nanostructured lipid carriers (NLCs) were designed to treat corneal alkaline burn injury. Rapamycin, a potent inhibitor of mammalian target of rapamycin pathway, was loaded in NLCs (rapa-NLCs), and the NLCs were characterized. Cell viability assay, cellular uptake of NLCs, and in vitro evaluation of the fibrotic/angiogenic genes suppression by rapa-NLCs were carried out on human isolated corneal fibroblasts. Immunohistochemistry (IHC) assays were also performed after treatment of murine model of corneal alkaline burn with rapa-NLCs. According to the results, rapamycin was efficiently loaded in NLCs. NLCs could enhance coumarin-6 fibroblast uptake by 1.5 times. Rapa-NLCs efficiently downregulated platelet-derived growth factor and transforming growth factor beta genes in vitro. Furthermore, proliferation of fibroblasts, a major cause of corneal haze after injury, reduced. IHC staining of treated cornea with alpha-smooth muscle actin and CD34 + antibodies showed efficient prevention of myofibroblasts differentiation and angiogenesis, respectively. In conclusion, ocular delivery of rapamycin using NLCs after corneal injury may be considered as a promising antifibrotic/angiogenic treatment approach to preserve patient eyesight.
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Affiliation(s)
- Forouhe Zahir-Jouzdani
- Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Khonsari
- Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Masoud Soleimani
- Bonyakhteh Stem Cell Research Center, Cellular and Molecular Biology Department, Tehran, Iran
| | - Mirgholamreza Mahbod
- Noor Ophthalmology Research Center, Pathology Department, Noor Eye Hospital, Tehran, Iran
| | - Ehsan Arefian
- Bonyakhteh Stem Cell Research Center, Cellular and Molecular Biology Department, Tehran, Iran.,Department of Microbiology, School of Biology, College of Science, University of Tehran, Tehran, Iran
| | - Mostafa Heydari
- Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Saeed Shahhosseini
- Noor Ophthalmology Research Center, Pathology Department, Noor Eye Hospital, Tehran, Iran
| | - Rassoul Dinarvand
- Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.,Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.,Nanotechnology Research Centre, Novel Drug Delivery Department, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Atyabi
- Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.,Department of Pharmaceutics, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran.,Nanotechnology Research Centre, Novel Drug Delivery Department, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
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36
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Enzo MV, Cattelan P, Rastrelli M, Tosi A, Rossi CR, Hladnik U, Segat D. Growth rate and myofibroblast differentiation of desmoid fibroblast-like cells are modulated by TGF-β signaling. Histochem Cell Biol 2018; 151:145-160. [DOI: 10.1007/s00418-018-1718-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/28/2018] [Indexed: 02/06/2023]
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37
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Grune J, Kuebler WM. Is there a role for endothelin-1 receptor antagonists in the treatment of lung fibrosis associated with pulmonary hypertension? Eur Respir J 2018; 52:52/2/1801287. [PMID: 30166496 DOI: 10.1183/13993003.01287-2018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 08/06/2018] [Indexed: 12/26/2022]
Affiliation(s)
- Jana Grune
- Institute of Physiology, Charité - Universitaetsmedizin, Berlin, Germany
| | - Wolfgang M Kuebler
- Institute of Physiology, Charité - Universitaetsmedizin, Berlin, Germany.,The Keenan Research Centre for Biomedical Science at St. Michael's, Toronto, ON, Canada.,Departments of Surgery and Physiology, University of Toronto, Toronto, ON, Canada
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38
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Bronte G, Bravaccini S, Bronte E, Burgio MA, Rolfo C, Delmonte A, Crinò L. Epithelial-to-mesenchymal transition in the context of epidermal growth factor receptor inhibition in non-small-cell lung cancer. Biol Rev Camb Philos Soc 2018; 93:1735-1746. [PMID: 29671943 DOI: 10.1111/brv.12416] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 03/20/2018] [Accepted: 03/23/2018] [Indexed: 12/12/2022]
Abstract
The identification of oncogenic driver mutations in non-small-cell lung cancer (NSCLC) has led to the development of targeted drugs. Tyrosine kinase inhibitors (TKIs) directed against the epidermal growth factor receptor (EGFR) target lung tumours bearing EGFR-activating mutations. This new therapeutic strategy has greatly improved tumour response rates. However, drug resistance invariably occurs during TKI-based treatment. Epithelial-to-mesenchymal transition (EMT) is one of the resistance mechanisms identified in EGFR-mutated NSCLC treated with TKIs. In this review we gather together the most important findings on this phenomenon in relation to cancer stem cells and cancer epigenetics. We also outline the correlation between the effects of stromal factors from the microenvironment, the transcription factors activated, the epigenetic changes in chromatin, and the evolution of cellular behaviour. Notably, EMT has already been shown to be the link between benign lung diseases such as chronic obstructive pulmonary disease and lung carcinogenesis. The various mechanisms of acquired resistance to EGFR-TKIs are also briefly described to provide background information on EMT. Our extensive review of the scientific literature serves to highlight the cellular and molecular events that lead to the onset of EMT in NSCLC cells treated with EGFR-TKIs. Finally, we put forward a hypothesis to explain why, in some cases, EMT rather than other known mechanisms is involved in resistance to TKIs.
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Affiliation(s)
- Giuseppe Bronte
- Department of Medical Oncology, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Via P. Maroncelli 40, 47014, Meldola, Italy
| | - Sara Bravaccini
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Meldola, Italy
| | - Enrico Bronte
- Department of Surgical, Oncological and Oral Sciences, University of Palermo, Palermo, Italy
| | - Marco Angelo Burgio
- Department of Medical Oncology, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Via P. Maroncelli 40, 47014, Meldola, Italy
| | - Christian Rolfo
- Phase I Early Clinical Trials Unit, Department of Oncology, Universitair Ziekenhuis Antwerpen, Edegem, Belgium
| | - Angelo Delmonte
- Department of Medical Oncology, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Via P. Maroncelli 40, 47014, Meldola, Italy
| | - Lucio Crinò
- Department of Medical Oncology, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Via P. Maroncelli 40, 47014, Meldola, Italy
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39
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Wang N, Liu ZH, Zou H, Pang LJ, Gu WY, Hu JM, Li DM, Zhao J, Zhang J, Liu CX, Zhang WJ, Qi Y, Li F. Laser capture microdissection for detecting the expression of epithelial-mesenchymal transition-related genes in epithelial and spindle cells of paraffin-embedded formalin-fixed biphasic synovial sarcoma. Clin Exp Pharmacol Physiol 2018; 45:675-682. [PMID: 29575169 DOI: 10.1111/1440-1681.12936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 02/11/2018] [Accepted: 03/01/2018] [Indexed: 11/26/2022]
Abstract
Synovial sarcoma (SS) is a mesenchymal malignant neoplasm showing characteristics of epithelial-mesenchymal biphasic differentiation. SS is of uncertain cellular origin; however, studies have suggested that SS originates from a somatic stem cell population. In this study, we aim to determine whether differential morphological features of the epithelial-mesenchymal transition (EMT) contributed to the tumourigenesis of SS invasion and metastasis. Twelve paraffin-embedded formalin-fixed tissue (FFPE) SS tissue specimens were obtained, and laser capture microdissection (LCM) with the ArcturusXT system and small chip method (SCM) were used to isolate and purify spindle and epithelial cells from SS specimens. The TRIzol method was used to extract RNA, and the mRNA levels of EMT-related genes in epithelial and spindle cells of SS specimens were measured using real-time fluorescent quantitative reverse transcription polymerase chain reaction (qRT-PCR). The results show that collection of about 2 × 104 cells from FFPE samples using LCM was sufficient for qRT-PCR, with an efficiency of 75%. Compared with LCM, 72.2% (13 of 18) RNA samples were successfully extracted using SCM to isolate cells from FFPE SS tissues. In the 16 samples (11 spindle cell samples and 5 epithelial cell samples), Snail mRNA was significantly upregulated in spindle cell areas compared with that in epithelial cell areas (P = .001). Expression levels of the epithelial marker E-cadherin and the mesenchymal marker N-cadherin were not significantly different between epithelial and spindle cell areas. In spindle cells of recurrent SS samples, the mRNA levels of E-cadherin, N-cadherin, Snail, and Slug were higher in primary SS samples than in recurrent samples. Taken together, our results indicated that in SS samples, Snail mRNA was upregulated in spindle cell areas compared with that in epithelial cell areas and that the expression of EMT-related genes was increased in primary SS. LCM could be used to isolate and purify RNA from FFPE samples.
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Affiliation(s)
- Ning Wang
- Department of Pathology and Key Laboratories for Xinjiang Endemic and Ethnic Diseases (Ministry of Education), Shihezi University School of Medicine, Shihezi, China
| | - Zi-Han Liu
- Department of Pathology and Key Laboratories for Xinjiang Endemic and Ethnic Diseases (Ministry of Education), Shihezi University School of Medicine, Shihezi, China
| | - Hong Zou
- Department of Pathology and Key Laboratories for Xinjiang Endemic and Ethnic Diseases (Ministry of Education), Shihezi University School of Medicine, Shihezi, China
| | - Li-Juan Pang
- Department of Pathology and Key Laboratories for Xinjiang Endemic and Ethnic Diseases (Ministry of Education), Shihezi University School of Medicine, Shihezi, China
| | - Wen-Yi Gu
- Australian Institute for Bioengineering and Nanotechnology (AIBN), University of Queensland (UQ), St Lucia, Brisbane, QLD, Australia
| | - Jian-Ming Hu
- Department of Pathology and Key Laboratories for Xinjiang Endemic and Ethnic Diseases (Ministry of Education), Shihezi University School of Medicine, Shihezi, China
| | - Dong-Mei Li
- Department of Biochemistry and Molecular Biology, Shihezi University School of Medicine, Shihezi, China
| | - Jin Zhao
- Department of Pathology and Key Laboratories for Xinjiang Endemic and Ethnic Diseases (Ministry of Education), Shihezi University School of Medicine, Shihezi, China
| | - Jun Zhang
- Department of Medical Genetics, Shihezi University School of Medicine, Shihezi, China
| | - Chun-Xia Liu
- Department of Pathology and Key Laboratories for Xinjiang Endemic and Ethnic Diseases (Ministry of Education), Shihezi University School of Medicine, Shihezi, China
| | - Wen-Jie Zhang
- Department of Pathology and Key Laboratories for Xinjiang Endemic and Ethnic Diseases (Ministry of Education), Shihezi University School of Medicine, Shihezi, China
| | - Yan Qi
- Department of Pathology and Key Laboratories for Xinjiang Endemic and Ethnic Diseases (Ministry of Education), Shihezi University School of Medicine, Shihezi, China
| | - Feng Li
- Department of Pathology and Key Laboratories for Xinjiang Endemic and Ethnic Diseases (Ministry of Education), Shihezi University School of Medicine, Shihezi, China.,Department of Pathology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
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40
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Beaulieu Leclerc V, Roy O, Santerre K, Proulx S. TGF-β1 promotes cell barrier function upon maturation of corneal endothelial cells. Sci Rep 2018. [PMID: 29535350 PMCID: PMC5849742 DOI: 10.1038/s41598-018-22821-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Human corneal endothelial cells (HCECs) easily become fibroblastic-like when cultured, rendering them unsuitable for tissue engineering of the cornea. Transforming growth factor β (TGF-β) could be a key factor in this phenomenon; however, TGF-β is also known to maintain the endothelium in a quiescent state in vivo. This work aimed to compare the effects of TGF-β1 on the phenotype of HCECs during the proliferation and maturation phases. Our results show that addition of TGF-β1 during the active proliferation phase produced fibroblastic HCECs and loss of the cell junction markers ZO-1 and n-cadherin, independent from the presence of epidermal growth factor (EGF). By contrast, addition of TGF-β1 in maturation media containing few mitogens led to an endothelial phenotype and functional cell junctions as HCECs developed a high trans-endothelial resistance. Furthermore, addition of AG-1478, an epithelial growth factor receptor inhibitor, enhanced the gain of the endothelial phenotype and cell barrier function. Overall, these results show that TGF-β1 can be used to promote the formation of a typical leaky endothelial barrier during the maturation phase of cultured HCECs. A two-phase culture of HCECs using distinct proliferation and maturation media could also be key for developing ideal HCEC culture conditions.
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Affiliation(s)
- Véronique Beaulieu Leclerc
- Centre de recherche du Centre hospitalier universitaire (CHU) de Québec - Université Laval, axe médecine régénératrice, Hôpital du Saint-Sacrement, Québec, QC, Canada.,Centre d'organogénèse expérimentale de l'Université Laval/LOEX, Québec, QC, Canada.,Département d'Ophtalmologie, Faculté de médecine, Université Laval, Québec, QC, Canada
| | - Olivier Roy
- Centre de recherche du Centre hospitalier universitaire (CHU) de Québec - Université Laval, axe médecine régénératrice, Hôpital du Saint-Sacrement, Québec, QC, Canada.,Centre d'organogénèse expérimentale de l'Université Laval/LOEX, Québec, QC, Canada.,Département d'Ophtalmologie, Faculté de médecine, Université Laval, Québec, QC, Canada
| | - Kim Santerre
- Centre de recherche du Centre hospitalier universitaire (CHU) de Québec - Université Laval, axe médecine régénératrice, Hôpital du Saint-Sacrement, Québec, QC, Canada.,Centre d'organogénèse expérimentale de l'Université Laval/LOEX, Québec, QC, Canada.,Département d'Ophtalmologie, Faculté de médecine, Université Laval, Québec, QC, Canada
| | - Stéphanie Proulx
- Centre de recherche du Centre hospitalier universitaire (CHU) de Québec - Université Laval, axe médecine régénératrice, Hôpital du Saint-Sacrement, Québec, QC, Canada. .,Centre d'organogénèse expérimentale de l'Université Laval/LOEX, Québec, QC, Canada. .,Département d'Ophtalmologie, Faculté de médecine, Université Laval, Québec, QC, Canada.
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Wei Q, Liu Q, Ren C, Liu J, Cai W, Zhu M, Jin H, He M, Yu J. Effects of bradykinin on TGF‑β1‑induced epithelial‑mesenchymal transition in ARPE‑19 cells. Mol Med Rep 2018; 17:5878-5886. [PMID: 29436636 PMCID: PMC5866033 DOI: 10.3892/mmr.2018.8556] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Accepted: 12/15/2017] [Indexed: 12/19/2022] Open
Abstract
The aim of the present study was to investigate the effects of bradykinin (BK) on an epithelial-mesenchymal transition (EMT) model in retinal pigment epithelium (RPE) cells through exposure to transforming growth factor‑β1 (TGF‑β1). The aim was to improve the effect of BK on proliferative vitreoretinopathy (PVR) progression, and to find a novel method of clinical prevention and treatment for PVR. The morphology of ARPE‑19 cells was observed using an inverted phase‑contrast microscope. A Cell Counting Kit‑8 was used to assess the effects of TGF‑β1 on the proliferation of ARPE‑19 cells. Western blotting and immunofluorescence were used to detect the expression levels of the epithelial marker E‑cadherin, mesenchymal markers α‑smooth muscle actin (SMA) and vimentin, and phosphorylated (p) mothers against decapentaplegic homolog (Smad)3 and Smad7 of the TGF/Smad signaling pathway. Wound healing tests and Transwell assays were performed to detect cell migration ability. Reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR) analysis was performed to detect the expression levels of pSmad3 and Smad7 in the TGF/Smad signaling pathway. The results revealed that the addition of 10 ng/ml TGF‑β1 resulted in the expression of factors associated with EMT in ARPE‑19 cells. BK decreased the expression levels of the mesenchymal markers α‑SMA and vimentin, and increased the expression of the epithelial marker E‑cadherin. BK decreased cell migration in TGF‑β1‑induced EMT. These effects were reversed by HOE‑140, a specific BK 2 receptor antagonist. BK significantly downregulated the expression of pSmad3 and upregulated the expression of Smad7 in TGF‑β1‑treated ARPE‑19 cells, and the protective alterations produced by BK were inhibited by HOE‑140. In conclusion, 10 ng/ml TGF‑β1 resulted in EMT in ARPE‑19 cells and BK served a negative role in TGF‑β1‑induced EMT. BK had effects in TGF‑β1‑induced EMT by upregulating the expression of Smad7 and downregulating the expression of pSmad3 in TGF‑β/Smad signaling pathway, indicating that BK may be a novel and effective therapy for PVR.
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Affiliation(s)
- Qingquan Wei
- Department of Ophthalmology, Shanghai Tenth People's Hospital Affiliated with Tongji University, Shanghai 200072, P.R. China
| | - Qingyu Liu
- Department of Ophthalmology, Shanghai Tenth People's Hospital Affiliated with Tongji University, Shanghai 200072, P.R. China
| | - Chengda Ren
- Department of Ophthalmology, Shanghai Tenth People's Hospital Affiliated with Tongji University, Shanghai 200072, P.R. China
| | - Junling Liu
- Department of Ophthalmology, Shanghai Tenth People's Hospital Affiliated with Tongji University, Shanghai 200072, P.R. China
| | - Wenting Cai
- Department of Ophthalmology, Shanghai Tenth People's Hospital Affiliated with Tongji University, Shanghai 200072, P.R. China
| | - Meijiang Zhu
- Department of Ophthalmology, Shanghai Tenth People's Hospital Affiliated with Tongji University, Shanghai 200072, P.R. China
| | - Huizi Jin
- Department of Ophthalmology, Shanghai Tenth People's Hospital Affiliated with Tongji University, Shanghai 200072, P.R. China
| | - Mengmei He
- Department of Ophthalmology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shanxi 710061, P.R. China
| | - Jing Yu
- Department of Ophthalmology, Shanghai Tenth People's Hospital Affiliated with Tongji University, Shanghai 200072, P.R. China
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42
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Cherubini E, Mariotta S, Scozzi D, Mancini R, Osman G, D'Ascanio M, Bruno P, Cardillo G, Ricci A. BDNF/TrkB axis activation promotes epithelial-mesenchymal transition in idiopathic pulmonary fibrosis. J Transl Med 2017; 15:196. [PMID: 28938915 PMCID: PMC5610541 DOI: 10.1186/s12967-017-1298-1] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 09/08/2017] [Indexed: 12/11/2022] Open
Abstract
Background Neurotrophins (NT) belongs to a family of growth factors which promotes neurons survival and differentiation. Increasing evidence show that NT and their receptor are expressed in lung tissues suggesting a possible role in lung health and disease. Here we investigated the expression and functional role of the TrkB/BDNF axis in idiopathic pulmonary fibrotic lung (myo)fibroblasts. Methods Lung fibroblast were isolated from IPF patients and characterized for the expression of mesenchymal markers in comparison to normal lung fibroblasts isolated from non-IPF controls. Results BDNF treatment promoted mesenchymal differentiation and this effect was counteracted by the TrkB inhibitor K252a. In this regard, we showed that K252a treatment was able to control the expression of transcription factors involved in epithelial to mesenchymal transition (EMT). Accordingly, K252a treatment reduced matrix metalloproteinase-9 enzyme activity and E-cadherin expression while increased cytoplasmic β-catenin expression. Conclusions Our results suggest that BDNF/TrkB axis plays a role in EMT promoting the acquisition of (myo)fibroblast cell phenotype in IPF. Targeting BDNF/TrkB seems to represent a viable approach in order to prevent EMT dependent lung fibrosis.
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Affiliation(s)
- Emanuela Cherubini
- Department of Clinical and Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Salvatore Mariotta
- Department of Clinical and Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Davide Scozzi
- Department of Clinical and Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Rita Mancini
- Department of Clinical and Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Giorgia Osman
- Department of Clinical and Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Michela D'Ascanio
- Department of Clinical and Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Pierdonato Bruno
- Department of Clinical and Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Giuseppe Cardillo
- Thoracic Surgery Unit, Ospedale Carlo Forlanini, Azienda Ospedaliera San Camillo Forlanini, Rome, Italy
| | - Alberto Ricci
- Department of Clinical and Molecular Medicine, Sapienza University of Rome, Rome, Italy.
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43
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Gasparics Á, Sebe A. MRTFs- master regulators of EMT. Dev Dyn 2017; 247:396-404. [PMID: 28681541 DOI: 10.1002/dvdy.24544] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 06/20/2017] [Accepted: 06/28/2017] [Indexed: 12/19/2022] Open
Abstract
Recent evidence implicates the myocardin-related transcription factors (MRTFs) as key mediators of the phenotypic plasticity leading to the conversion of various cell types into myofibroblasts. This review highlights the function of MRTFs during development, fibrosis and cancer, and the role of MRTFs during epithelial-mesenchymal transitions (EMTs) underlying these processes. EMT is a sequentially orchestrated process where cells undergo a rearrangement of their cell contacts and activate a fibrogenic and myogenic expression program. MRTFs interact with and regulate the major signaling pathways and the expression of key markers and transcription factors involved in EMT. These functions indicate a central role for MRTFs in controlling the process of EMT. Developmental Dynamics 247:396-404, 2018. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Ákos Gasparics
- Semmelweis University, Department of Pathophysiology, Budapest, Hungary.,Semmelweis University, 1st Department of Obstetrics and Gynecology, Budapest, Hungary
| | - Attila Sebe
- Semmelweis University, Department of Pathophysiology, Budapest, Hungary.,Paul Ehrlich Institute, Division of Medical Biotechnology, Langen, Germany
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Shi Y, Qin N, Zhou Q, Chen Y, Huang S, Chen B, Shen G, Jia H. Role of IQGAP3 in metastasis and epithelial-mesenchymal transition in human hepatocellular carcinoma. J Transl Med 2017; 15:176. [PMID: 28810875 PMCID: PMC5558666 DOI: 10.1186/s12967-017-1275-8] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 08/01/2017] [Indexed: 01/06/2023] Open
Abstract
Background Hepatocellular carcinoma (HCC) is one of the most lethal cancers worldwide owing to its high rates of metastasis and recurrence. The oncogene IQ motif-containing GTPase activating protein 3 (IQGAP3) is ubiquitously overexpressed in several human cancers, including liver, ovary, lung, large intestine, gastric, bone marrow, and breast malignancies and is involved in the invasion and metastasis of cancer cells. Therefore, we aimed to determine the biological role and molecular mechanism of IQGAP3 in HCC. Methods We used 120 archived clinical HCC samples, 9 snap-frozen HCC tumor tissues, and 4 normal liver tissues. Expression of IQGAP3 mRNA and protein in HCC cell lines (Hep3B, SMMC-7721, HCCC-9810, HepG2, BEL-7404, HCCLM3, QGY-7701, Huh7, and MHCC97H) and normal liver epithelial cells LO2 was examined by western blot, quantitative polymerase chain reaction, and immunohistochemistry. In addition, wound-healing and transwell matrix penetration assays were used to assess the migratory and invasive abilities of HCC cells, respectively. Results Expression of the IQGAP3 was robustly upregulated in HCC cells and tissues. High expression of IQGAP3 in HCC correlated with aggressive clinicopathological features and was an independent poor prognostic factor for overall survival. Furthermore, ectopic expression of IQGAP3 markedly enhanced HCC cell migration, invasion, and epithelial-to-mesenchymal transition (EMT) in vitro and promoted metastasis of orthotopic hepatic tumors in nude mice. Conversely, silencing endogenous IQGAP3 showed an opposite effect. Mechanistically, IQGAP3 promoted EMT and metastasis by activating TGF-β signaling. Conclusions IQGAP3 functions as an important regulator of metastasis and EMT by constitutively activating the TGF-β signaling pathway in HCC. Our findings present new evidence of the role of IQGAP3 in EMT and metastasis, indicating its potential as a prognostic biomarker candidate and a therapeutic target against HCC.
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Affiliation(s)
- Yongjie Shi
- Department of Clinical Examination, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510260, Guangdong, People's Republic of China
| | - Nan Qin
- Department of Clinical Examination, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510260, Guangdong, People's Republic of China
| | - Qiang Zhou
- Department of Clinical Examination, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510260, Guangdong, People's Republic of China
| | - Yanqiu Chen
- Department of ENT, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9th Jinsui Road, Guangzhou, 510623, Guangdong, People's Republic of China
| | - Sicong Huang
- Department of Clinical Examination, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510260, Guangdong, People's Republic of China
| | - Bo Chen
- Department of Clinical Examination, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510260, Guangdong, People's Republic of China
| | - Gang Shen
- Department of Interventional Radiology and Vascular Anomalies, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 9th Jinsui Road, Guangzhou, 510623, Guangdong, People's Republic of China.
| | - Hongyun Jia
- Department of Clinical Examination, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510260, Guangdong, People's Republic of China.
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45
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Guo Y, Gupte M, Umbarkar P, Singh AP, Sui JY, Force T, Lal H. Entanglement of GSK-3β, β-catenin and TGF-β1 signaling network to regulate myocardial fibrosis. J Mol Cell Cardiol 2017; 110:109-120. [PMID: 28756206 DOI: 10.1016/j.yjmcc.2017.07.011] [Citation(s) in RCA: 109] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 07/20/2017] [Accepted: 07/24/2017] [Indexed: 12/31/2022]
Abstract
Nearly every form of the heart disease is associated with myocardial fibrosis, which is characterized by the accumulation of activated cardiac fibroblasts (CFs) and excess deposition of extracellular matrix (ECM). Although, CFs are the primary mediators of myocardial fibrosis in a diseased heart, in the traditional view, activated CFs (myofibroblasts) and resulting fibrosis were simply considered the secondary consequence of the disease, not the cause. Recent studies from our lab and others have challenged this concept by demonstrating that fibroblast activation and fibrosis are not simply the secondary consequence of a diseased heart, but are crucial for mediating various myocardial disease processes. In regards to the mechanism, the vast majority of literature is focused on the direct role of canonical SMAD-2/3-mediated TGF-β signaling to govern the fibrogenic process. Herein, we will discuss the emerging role of the GSK-3β, β-catenin and TGF-β1-SMAD-3 signaling network as a critical regulator of myocardial fibrosis in the diseased heart. The underlying molecular interactions and cross-talk among signaling pathways will be discussed. We will primarily focus on recent in vivo reports demonstrating that CF-specific genetic manipulation can lead to aberrant myocardial fibrosis and sturdy cardiac phenotype. This will allow for a better understanding of the driving role of CFs in the myocardial disease process. We will also review the specificity and limitations of the currently available genetic tools used to study myocardial fibrosis and its associated mechanisms. A better understanding of the GSK-3β, β-catenin and SMAD-3 signaling network may provide a novel therapeutic target for the management of myocardial fibrosis in the diseased heart.
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Affiliation(s)
- Yuanjun Guo
- Division of Cardiovascular Medicine, Vanderbilt University Medical Center, 2220 Pierce Ave, PRB, Suite#348, Nashville, TN 37232, United States
| | - Manisha Gupte
- Division of Cardiovascular Medicine, Vanderbilt University Medical Center, 2220 Pierce Ave, PRB, Suite#348, Nashville, TN 37232, United States
| | - Prachi Umbarkar
- Division of Cardiovascular Medicine, Vanderbilt University Medical Center, 2220 Pierce Ave, PRB, Suite#348, Nashville, TN 37232, United States
| | - Anand Prakash Singh
- Division of Cardiovascular Medicine, Vanderbilt University Medical Center, 2220 Pierce Ave, PRB, Suite#348, Nashville, TN 37232, United States
| | - Jennifer Y Sui
- Division of Cardiovascular Medicine, Vanderbilt University Medical Center, 2220 Pierce Ave, PRB, Suite#348, Nashville, TN 37232, United States
| | - Thomas Force
- Division of Cardiovascular Medicine, Vanderbilt University Medical Center, 2220 Pierce Ave, PRB, Suite#348, Nashville, TN 37232, United States
| | - Hind Lal
- Division of Cardiovascular Medicine, Vanderbilt University Medical Center, 2220 Pierce Ave, PRB, Suite#348, Nashville, TN 37232, United States.
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Zhang J, Zhang X, Zhao X, Jiang M, Gu M, Wang Z, Yue W. DKK1 promotes migration and invasion of non-small cell lung cancer via β-catenin signaling pathway. Tumour Biol 2017; 39:1010428317703820. [PMID: 28677426 DOI: 10.1177/1010428317703820] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Disregulation of dickkopf-related protein 1 (DKK1) has been reported in a variety of human cancers. However, how DKK1 functions in Non-small cell lung cancer has not been revealed. In the current study, DKK1 was knocked out by the lentivirus-mediated short hairpin RNA interference approach in H1299 and 95C non-small cell lung cancer cell lines. Subsequently, the migration and invasion ability were assessed by wound-healing and transwell assays. In addition, epithelial-mesenchymal transition markers and β-catenin were examined by Western blot analysis. The signaling pathway downstream of DKK1 was characterized using the Wnt signaling pathway inhibitor, IWP2, and glycogen synthase kinase 3 beta inhibitor, LiCl. Immunofluorescence analysis investigated the subcellular localization of β-catenin. The results suggested that knockdown of DKK1 caused reduced migration and invasion ability of H1299 and 95C cells. DKK1 silencing resulted in the downregulation of epithelial-mesenchymal transition-related proteins, such as Snail and zinc finger E-box binding homeobox 1. Besides, DKK1 silencing inhibited β-catenin and promoted the phosphorylation of β-catenin. Mechanism results indicated that the expression of β-catenin was reduced in H1299 or 95C cells after being treated with Wnt signaling inhibitor, IWP2. In addition, the inhibition of β-catenin phosphorylation by glycogen synthase kinase 3 beta inhibitor, LiCl, significantly enhanced the migration and invasion capacities in DKK1-knockdown cell lines. Furthermore, cell immunofluorescence revealed that nuclear β-catenin was reduced when DKK1 was knocked down. Taken together, these findings suggest that DKK1 induces the occurrence of epithelial-mesenchymal transition and promotes migration and invasion in non-small cell lung cancer cells. Mechanically, β-catenin plays a vital role in DKK1-induced non-small cell lung cancer cell migration and invasion, and DKK1 inhibits the phosphorylation of β-catenin, resulting in the increased nuclear localization of β-catenin.
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Affiliation(s)
- Jing Zhang
- 1 Department of Cellular and Molecular Biology, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Xintong Zhang
- 1 Department of Cellular and Molecular Biology, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Xiaoting Zhao
- 1 Department of Cellular and Molecular Biology, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Mei Jiang
- 1 Department of Cellular and Molecular Biology, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Meng Gu
- 1 Department of Cellular and Molecular Biology, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Ziyu Wang
- 1 Department of Cellular and Molecular Biology, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Wentao Yue
- 2 Central Laboratary, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
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Miranda MZ, Bialik JF, Speight P, Dan Q, Yeung T, Szászi K, Pedersen SF, Kapus A. TGF-β1 regulates the expression and transcriptional activity of TAZ protein via a Smad3-independent, myocardin-related transcription factor-mediated mechanism. J Biol Chem 2017; 292:14902-14920. [PMID: 28739802 DOI: 10.1074/jbc.m117.780502] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 06/30/2017] [Indexed: 12/20/2022] Open
Abstract
Hippo pathway transcriptional coactivators TAZ and YAP and the TGF-β1 (TGFβ) effector Smad3 regulate a common set of genes, can physically interact, and exhibit multilevel cross-talk regulating cell fate-determining and fibrogenic pathways. However, a key aspect of this cross-talk, TGFβ-mediated regulation of TAZ or YAP expression, remains uncharacterized. Here, we show that TGFβ induces robust TAZ but not YAP protein expression in both mesenchymal and epithelial cells. TAZ levels, and to a lesser extent YAP levels, also increased during experimental kidney fibrosis. Pharmacological or genetic inhibition of Smad3 did not prevent the TGFβ-induced TAZ up-regulation, indicating that this canonical pathway is dispensable. In contrast, inhibition of p38 MAPK, its downstream effector MK2 (e.g. by the clinically approved antifibrotic pirferidone), or Akt suppressed the TGFβ-induced TAZ expression. Moreover, TGFβ elevated TAZ mRNA in a p38-dependent manner. Myocardin-related transcription factor (MRTF) was a central mediator of this effect, as MRTF silencing/inhibition abolished the TGFβ-induced TAZ expression. MRTF overexpression drove the TAZ promoter in a CC(A/T-rich)6GG (CArG) box-dependent manner and induced TAZ protein expression. TGFβ did not act by promoting nuclear MRTF translocation; instead, it triggered p38- and MK2-mediated, Nox4-promoted MRTF phosphorylation and activation. Functionally, higher TAZ levels increased TAZ/TEAD-dependent transcription and primed cells for enhanced TAZ activity upon a second stimulus (i.e. sphingosine 1-phosphate) that induced nuclear TAZ translocation. In conclusion, our results uncover an important aspect of the cross-talk between TGFβ and Hippo signaling, showing that TGFβ induces TAZ via a Smad3-independent, p38- and MRTF-mediated and yet MRTF translocation-independent mechanism.
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Affiliation(s)
- Maria Zena Miranda
- From the Keenan Research Centre for Biomedical Science of the St. Michael's Hospital.,Biochemistry, University of Toronto, Toronto, Ontario M5B 1T8N, Canada and
| | - Janne Folke Bialik
- From the Keenan Research Centre for Biomedical Science of the St. Michael's Hospital.,the Department of Cell and Developmental Biology, University of Copenhagen, Copenhagen DK-2100, Denmark
| | - Pam Speight
- From the Keenan Research Centre for Biomedical Science of the St. Michael's Hospital
| | - Qinghong Dan
- From the Keenan Research Centre for Biomedical Science of the St. Michael's Hospital
| | - Tony Yeung
- From the Keenan Research Centre for Biomedical Science of the St. Michael's Hospital
| | - Katalin Szászi
- From the Keenan Research Centre for Biomedical Science of the St. Michael's Hospital.,Departments of Surgery and
| | - Stine F Pedersen
- the Department of Cell and Developmental Biology, University of Copenhagen, Copenhagen DK-2100, Denmark
| | - András Kapus
- From the Keenan Research Centre for Biomedical Science of the St. Michael's Hospital, .,Biochemistry, University of Toronto, Toronto, Ontario M5B 1T8N, Canada and.,Departments of Surgery and
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Ren D, Yang Q, Dai Y, Guo W, Du H, Song L, Peng X. Oncogenic miR-210-3p promotes prostate cancer cell EMT and bone metastasis via NF-κB signaling pathway. Mol Cancer 2017; 16:117. [PMID: 28693582 PMCID: PMC5504657 DOI: 10.1186/s12943-017-0688-6] [Citation(s) in RCA: 173] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 06/26/2017] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND The primary issue arising from prostate cancer (PCa) is its high prevalence to metastasize to bone, which severely affects the quality of life and survival time of PCa patients. miR-210-3p is a well-documented oncogenic miRNA implicated in various aspects of cancer development, progression and metastasis. However, the clinical significance and biological roles of miR-210-3p in PCa bone metastasis remain obscure. METHODS miR-210-3p expression was evaluated by real-time PCR in 68 bone metastatic and 81 non-bone metastatic PCa tissues. The biological roles of miR-210-3p in the bone metastasis of PCa were investigated both in vitro by EMT and Transwell assays, and in vivo using a mouse model of left cardiac ventricle inoculation. Bioinformatics analysis, real-time PCR, western blot and luciferase reporter analysis were applied to discern and examine the relationship between miR-210-3p and its potential targets. RT-PCR was performed to identify the underlying mechanism of miR-210-3p overexpression in bone metastasis of PCa. Clinical correlation of miR-210-3p with its targets was examined in human PCa and metastatic bone tissues. RESULTS miR-210-3p expression is elevated in bone metastatic PCa tissues compared with non-bone metastatic PCa tissues. Overexpression of miR-210-3p positively correlates with serum PSA levels, Gleason grade and bone metastasis status in PCa patients. Upregulating miR-210-3p enhances, while silencing miR-210-3p represses the EMT, invasion and migration of PCa cells in vitro. Importantly, silencing miR-210-3p significantly inhibits bone metastasis of PC-3 cells in vivo. Our results further demonstrate that miR-210-3p maintains the sustained activation of NF-κB signaling via targeting negative regulators of NF-κB signaling (TNF-α Induced Protein 3 Interacting Protein 1) TNIP1 and (Suppressor Of Cytokine Signaling 1) SOCS1, resulting in EMT, invasion, migration and bone metastasis of PCa cells. Moreover, our results further indicate that recurrent gains (amplification) contribute to miR-210-3p overexpression in a small number of PCa patients. The clinical correlation of miR-210-3p with SOCS1, TNIP1 and NF-κB signaling activity is verified in PCa tissues. CONCLUSION Our findings unravel a novel mechanism for constitutive activation of NF-κB signaling pathway in the bone metastasis of PCa, supporting a functional and clinical significance of epigenetic events in bone metastasis of PCa.
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Affiliation(s)
- Dong Ren
- Department of Orthopaedic Surgery, the First Affiliated Hospital of Sun Yat-sen University, 58# Zhongshan 2rd Road, Guangzhou, 510080 China
- Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Guangdong Province, Guangzhou, 510080 China
| | - Qing Yang
- Department of Orthopaedic Surgery, the First Affiliated Hospital of Sun Yat-sen University, 58# Zhongshan 2rd Road, Guangzhou, 510080 China
- Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Guangdong Province, Guangzhou, 510080 China
| | - Yuhu Dai
- Department of Orthopaedic Surgery, the First Affiliated Hospital of Sun Yat-sen University, 58# Zhongshan 2rd Road, Guangzhou, 510080 China
- Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Guangdong Province, Guangzhou, 510080 China
| | - Wei Guo
- Department of Orthopaedic Surgery, the First Affiliated Hospital of Sun Yat-sen University, 58# Zhongshan 2rd Road, Guangzhou, 510080 China
- Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Guangdong Province, Guangzhou, 510080 China
| | - Hong Du
- Department of Pathology, the First People’s Hospital of Guangzhou City, Guangdong Province, Guangzhou, 510180 China
| | - Libing Song
- Department of Experimental Research, State Key Laboratory of Oncology in Southern China, Sun Yat-sen University Cancer Center, Guangzhou, 510060 China
| | - Xinsheng Peng
- Department of Orthopaedic Surgery, the First Affiliated Hospital of Sun Yat-sen University, 58# Zhongshan 2rd Road, Guangzhou, 510080 China
- Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Guangdong Province, Guangzhou, 510080 China
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Stromal-derived IGF2 promotes colon cancer progression via paracrine and autocrine mechanisms. Oncogene 2017; 36:5341-5355. [PMID: 28534511 DOI: 10.1038/onc.2017.116] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 02/25/2017] [Accepted: 03/23/2017] [Indexed: 12/31/2022]
Abstract
The insulin-like growth factor (IGF)2/IGF1 receptor (IGF1R) signaling axis has an important role in intestinal carcinogenesis and overexpression of IGF2 is an accepted risk factor for colorectal cancer (CRC) development. Genetic amplifications and loss of imprinting contribute to the upregulation of IGF2, but insufficiently explain the extent of IGF2 expression in a subset of patients. Here, we show that IGF2 was specifically induced in the tumor stroma of CRC and identified cancer-associated fibroblasts (CAFs) as the major source. Further, we provide functional evidence that stromal IGF2, via the paracrine IGF1R/insulin receptor axis, activated pro-survival AKT signaling in CRC cell lines. In addition to its effects on malignant cells, autocrine IGF2/IGF1R signaling in CAFs induced myofibroblast differentiation in terms of alpha-smooth muscle actin expression and contractility in floating collagen gels. This was further augmented in concert with transforming growth factor-β (TGFβ) signaling suggesting a cooperative mechanism. However, we demonstrated that IGF2 neither induced TGFβ/smooth muscle actin/mothers against decapentaplegic (SMAD) signaling nor synergized with TGFβ to hyperactivate this pathway in two dimensional and three dimensional cultures. IGF2-mediated physical matrix remodeling by CAFs, but not changes in extracellular matrix-modifying proteases or other secreted factors acting in a paracrine manner on/in cancer cells, facilitated subsequent tumor cell invasion in organotypic co-cultures. Consistently, colon cancer cells co-inoculated with CAFs expressing endogenous IGF2 in mouse xenograft models exhibited elevated invasiveness and dissemination capacity, as well as increased local tumor regrowth after primary tumor resection compared with conditions with IGF2-deficient CAFs. In line, expression of IGF2 correlated with elevated relapse rates and poor survival in CRC patients. In agreement with our results, high-level coexpression of IGF2 and TGFβ was predicting adverse outcome with higher accuracy than increased expression of the individual genes alone. Taken together, we demonstrate that stroma-induced IGF2 promotes colon cancer progression in a paracrine and autocrine manner and propose IGF2 as potential target for tumor stroma cotargeting strategies.
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Pigment epithelium-derived factor attenuates myocardial fibrosis via inhibiting Endothelial-to-Mesenchymal Transition in rats with acute myocardial infarction. Sci Rep 2017; 7:41932. [PMID: 28167820 PMCID: PMC5294634 DOI: 10.1038/srep41932] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2016] [Accepted: 01/03/2017] [Indexed: 02/06/2023] Open
Abstract
Endothelial mesenchymal transition (EndMT) plays a critical role in the pathogenesis and progression of interstitial and perivascular fibrosis after acute myocardial infarction (AMI). Pigment epithelium-derived factor (PEDF) is shown to be a new therapeutic target owing to its protective role in cardiovascular disease. In this study, we tested the hypothesis that PEDF is an endogenous inhibitor of EndMT and represented a novel mechanism for its protective effects against overactive cardiac fibrosis after AMI. Masson’s trichrome (MTC) staining and picrosirius red staining revealed decreased interstitial and perivascular fibrosis in rats overexpressing PEDF. The protective effect of PEDF against EndMT was confirmed by co-labeling of cells with the myofibroblast and endothelial cell markers. In the endothelial cells of microvessels in the ischemic myocardium, the inhibitory effect of PEDF against nuclear translocation of β-catenin was observed through confocal microscopic imaging. The correlation between antifibrotic effect of PEDF and inactivation of β-catenin was confirmed by co-transfecting cells with lentivirus carrying PEDF or PEDF RNAi and plasmids harboring β-catenin siRNA(r) or constitutive activation of mutant β-catenin. Taken together, these results establish a novel finding that PEDF could inhibit EndMT related cardiac fibrosis after AMI by a mechanism dependent on disruption of β-catenin activation and translocation.
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