51
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Zhu JJ, Jiang ZT, Liu C, Xi YF, Wang J, Yang FF, Yao WJ, Pang W, Han LL, Zhang YH, Sun AQ, Zhou J. VAMP3 and SNAP23 as Potential Targets for Preventing the Disturbed Flow-Accelerated Thrombus Formation. Front Cell Dev Biol 2020; 8:576826. [PMID: 33224946 PMCID: PMC7674309 DOI: 10.3389/fcell.2020.576826] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 10/05/2020] [Indexed: 01/21/2023] Open
Abstract
Disturbed blood flow has been recognized to promote platelet aggregation and thrombosis via increasing accumulation of von Willebrand factor (VWF) at the arterial post-stenotic sites. The mechanism underlying the disturbed-flow regulated endothelial VWF production remains elusive. Here we described a mouse model, in which the left external carotid artery (LECA) is ligated to generate disturbed flow in the common carotid artery. Ligation of LECA increased VWF accumulation in the plasma. Carotid arterial thrombosis was induced by ferric chloride (FeCl3) application and the time to occlusion in the ligated vessels was reduced in comparison with the unligated vessels. In vitro, endothelial cells were subjected to oscillatory shear (OS, 0.5 ± 4 dynes/cm2) or pulsatile shear (PS, 12 ± 4 dynes/cm2). OS promoted VWF secretion as well as the cell conditioned media-induced platelet aggregation by regulating the intracellular localization of vesicle-associated membrane protein 3 (VAMP3) and synaptosomal-associated protein 23 (SNAP23). Disruption of vimentin intermediate filaments abolished the OS-induced translocation of SNAP23 to the cell membrane. Knockdown of VAMP3 and SNAP23 reduced the endothelial secretion of VWF. Systemic inhibition of VAMP3 and SNAP23 by treatment of mice with rapamycin significantly ameliorated the FeCl3-induced thrombogenesis, whereas intraluminal overexpression of VAMP3 and SNAP23 aggravated it. Our findings demonstrate VAMP3 and SNAP23 as potential targets for preventing the disturbed flow-accelerated thrombus formation.
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Affiliation(s)
- Juan-Juan Zhu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China.,Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, China.,National Health Commission of the People's Republic of China Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Peking University, Beijing, China.,Department of Pharmacology, School of Basic Medical Science, Peking University, Beijing, China
| | - Zhi-Tong Jiang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China.,Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, China.,National Health Commission of the People's Republic of China Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Peking University, Beijing, China
| | - Chen Liu
- Department of Clinical Laboratory, Peking University People's Hospital, Beijing, China
| | - Yi-Feng Xi
- School of Biological Science and Medical Engineering, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, China
| | - Jin Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China.,Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, China.,National Health Commission of the People's Republic of China Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Peking University, Beijing, China
| | - Fang-Fang Yang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China.,Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, China.,National Health Commission of the People's Republic of China Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Peking University, Beijing, China
| | - Wei-Juan Yao
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Wei Pang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Li-Li Han
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Yong-He Zhang
- Department of Pharmacology, School of Basic Medical Science, Peking University, Beijing, China
| | - An-Qiang Sun
- School of Biological Science and Medical Engineering, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, China
| | - Jing Zhou
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China.,Key Laboratory of Molecular Cardiovascular Sciences, Ministry of Education, Beijing, China.,National Health Commission of the People's Republic of China Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Peking University, Beijing, China
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52
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Pérez-Boza J, Boeckx A, Lion M, Dequiedt F, Struman I. hnRNPA2B1 inhibits the exosomal export of miR-503 in endothelial cells. Cell Mol Life Sci 2020; 77:4413-4428. [PMID: 31894362 PMCID: PMC11104873 DOI: 10.1007/s00018-019-03425-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 12/06/2019] [Accepted: 12/11/2019] [Indexed: 12/15/2022]
Abstract
The chemotherapeutic drug epirubicin increases the exosomal export of miR-503 in endothelial cells. To understand the mechanisms behind this process, we transfected endothelial cells with miR-503 carrying a biotin tag. Then, we pulled-down the proteins interacting with miR-503 and studied their role in microRNA exosomal export. A total of four different binding partners were identified by mass spectrometry and validated by western blotting and negative controls, among them ANXA2 and hnRNPA2B1. Using knock-down systems combined with pull-down analysis, we determined that epirubicin mediates the export of miR-503 by disrupting the interaction between hnRNPA2B1 and miR-503. Then, both ANXA2 and miR-503 are sorted into exosomes while hnRNPA2B1 is relocated into the nucleus. The combination of these processes culminates in the increased export of miR-503. These results suggest, for the first time, that RNA-binding proteins can negatively regulate the exosomal sorting of microRNAs.
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Affiliation(s)
- Jennifer Pérez-Boza
- Molecular Angiogenesis Laboratory, GIGA Research, ULiege, B34, Avenue de l'Hôpital, 1, 4000, Liège, Belgium
- Exosome Research Group and Medical Oncology, VUmc Cancer Center Amsterdam, 1118 De Boelelaan, 1182 DB, Amsterdam, The Netherlands
| | - Amandine Boeckx
- Molecular Angiogenesis Laboratory, GIGA Research, ULiege, B34, Avenue de l'Hôpital, 1, 4000, Liège, Belgium
| | - Michele Lion
- Molecular Angiogenesis Laboratory, GIGA Research, ULiege, B34, Avenue de l'Hôpital, 1, 4000, Liège, Belgium
| | - Franck Dequiedt
- Laboratoire de Signalisation et Interactions des Protéines, GIGA-Research, ULiege, B34, Avenue de l'Hôpital, 1, 4000, Liège, Belgium
| | - Ingrid Struman
- Molecular Angiogenesis Laboratory, GIGA Research, ULiege, B34, Avenue de l'Hôpital, 1, 4000, Liège, Belgium.
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53
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Chen L, Lin G, Chen K, Liang R, Wan F, Zhang C, Tian G, Zhu X. VEGF promotes migration and invasion by regulating EMT and MMPs in nasopharyngeal carcinoma. J Cancer 2020; 11:7291-7301. [PMID: 33193893 PMCID: PMC7646165 DOI: 10.7150/jca.46429] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Accepted: 10/04/2020] [Indexed: 12/12/2022] Open
Abstract
Background: Vascular endothelial growth factor (VEGF) is an important pro-angiogenic factor. Accumulating data have indicated that VEGF is involved in tumour metastasis. However, the mechanism through which VEGF regulates nasopharyngeal carcinoma (NPC) metastasis is largely unknown. This study aimed to examine the biological function of VEGF in NPC metastasis and its underlying mechanism. Methods: We used western blotting and qPCR to examine the difference in VEGF expression between NPC cells and the immortalized nasopharyngeal epithelial cell line NP69. Wound healing assays, transwell assays and animal experiments were used to further verify the role of VEGF in the invasion and migration of NPC cells. The protein levels of the epithelial-mesenchymal transition (EMT) and matrix metalloproteinase (MMP) family were analysed by immunofluorescence (IF) and western blotting. Enzyme-linked immunosorbent assay (ELISA) and transwell assays were used to determine whether VEGF enhanced the invasion and migration of NPC cells in an autocrine manner. Western blotting was used to examine how autocrine VEGF-VEGFR2 signalling regulated EMT and MMPs. Results: We observed higher levels of VEGF in NPC cells than that in NP69 cells and identified an association between high VEGF levels and tumour invasion and migration. Mechanistically, the VEGF-mediated increase in EMT markers, MMP2 and MMP9 promoted NPC cell invasion and migration. Additionally, NPC cells secreted VEGF to promote cell invasion, migration and angiogenesis. Autocrine VEGF-VEGFR2 signalling increased ERK1/2 phosphorylation, promoted EMT process and MMPs at the indicated times. Conclusion: This study revealed that VEGF plays a role in controlling NPC cell metastasis by regulating EMT markers and MMPs in an autocrine manner.
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Affiliation(s)
- Li Chen
- Department of Oncology, Affiliated Wuming Hospital of Guangxi Medical University, Nanning, Guangxi, 530010, People's Republic of China.,Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi 530021, People's Republic of China
| | - Guoxiang Lin
- Department of Oncology, Affiliated Wuming Hospital of Guangxi Medical University, Nanning, Guangxi, 530010, People's Republic of China
| | - Kaihua Chen
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi 530021, People's Republic of China
| | - Renba Liang
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi 530021, People's Republic of China
| | - Fangzhu Wan
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi 530021, People's Republic of China
| | - Chuxiao Zhang
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi 530021, People's Republic of China
| | - Ge Tian
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi 530021, People's Republic of China
| | - Xiaodong Zhu
- Department of Oncology, Affiliated Wuming Hospital of Guangxi Medical University, Nanning, Guangxi, 530010, People's Republic of China.,Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, Guangxi 530021, People's Republic of China.,Guangxi Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor, Guangxi Medical University, Nanning, Guangxi 530021, People's Republic of China
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54
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Faqar-Uz-Zaman WF, Schmidt KG, Thomas D, Pfeilschifter JM, Radeke HH, Schwiebs A. S1P Lyase siRNA Dampens Malignancy of DLD-1 Colorectal Cancer Cells. Lipids 2020; 56:155-166. [PMID: 32971566 DOI: 10.1002/lipd.12282] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 07/30/2020] [Accepted: 08/19/2020] [Indexed: 12/23/2022]
Abstract
Sphingosine-1-phosphate lyase 1 (S1P lyase or SGPL1) is an essential sphingosine-1-phosphate-degrading enzyme. Its manipulation favors onset and progression of colorectal cancer and others in vivo. Thus, SGPL1 is an important modulator of cancer initiation. However, in established cancer, the impact of retrospective SGPL1 modulation is elusive. Herein, we analyzed how SGPL1 siRNA affects malignancy of the human colorectal cancer cells DLD-1 and found that in parallel to the reduction of SGPL1 expression levels, migration, invasion, and differentiation status changed. Diminished SGPL1 expression was accompanied with reduced cell migration and cell invasion in scratch assays and transwell assays, whereas metabolic activity and proliferation was not altered. Decreased migration was attended by increased cell-cell-adhesion through upregulation of E-cadherin and formation of cadherin-actin complexes. Spreading cell islets showed lower vimentin abundance in border cells. Furthermore, SGPL1 siRNA treatment induced expression of epithelial cell differentiation markers, such as intestinal alkaline phosphatase and cytokeratin 20. Hence, interference with SGPL1 expression augmented a partial redifferentiation of colorectal cancer cells toward normal colon epithelial cells. Our investigation showed that SGPL1 siRNA influenced tumorigenic activity of established colorectal cancer cells. We therefore suggest SGPL1 as a target for lowering malignant potential of already existing cancer.
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Affiliation(s)
- Wajiha Farha Faqar-Uz-Zaman
- Institute of General Pharmacology and Toxicology, Pharmazentrum Frankfurt/ZAFES, Hospital of the Goethe University, Frankfurt am Main, Germany
| | - Katrin G Schmidt
- Institute of General Pharmacology and Toxicology, Pharmazentrum Frankfurt/ZAFES, Hospital of the Goethe University, Frankfurt am Main, Germany
| | - Dominique Thomas
- Institute of Clinical Pharmacology, Pharmazentrum Frankfurt, Hospital of the Goethe University, Frankfurt am Main, Germany
| | - Josef M Pfeilschifter
- Institute of General Pharmacology and Toxicology, Pharmazentrum Frankfurt/ZAFES, Hospital of the Goethe University, Frankfurt am Main, Germany
| | - Heinfried H Radeke
- Institute of General Pharmacology and Toxicology, Pharmazentrum Frankfurt/ZAFES, Hospital of the Goethe University, Frankfurt am Main, Germany
| | - Anja Schwiebs
- Institute of General Pharmacology and Toxicology, Pharmazentrum Frankfurt/ZAFES, Hospital of the Goethe University, Frankfurt am Main, Germany
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55
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Xiao J, Zhang B, Su Z, Liu Y, Shelite TR, Chang Q, Wang P, Bukreyev A, Soong L, Jin Y, Ksiazek T, Gaitas A, Rossi SL, Zhou J, Laposata M, Saito TB, Gong B. EPAC regulates von Willebrand factor secretion from endothelial cells in a PI3K/eNOS-dependent manner during inflammation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2020. [PMID: 32908983 DOI: 10.1101/2020.09.04.282806] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Coagulopathy is associated with both inflammation and infection, including infection with the novel SARS-CoV-2 (COVID-19). Endothelial cells (ECs) fine tune hemostasis via cAMP-mediated secretion of von Willebrand factor (vWF), which promote the process of clot formation. The e xchange p rotein directly a ctivated by c AMP (EPAC) is a ubiquitously expressed intracellular cAMP receptor that plays a key role in stabilizing ECs and suppressing inflammation. To assess whether EPAC could regulate vWF release during inflammation, we utilized our EPAC1 -null mouse model and revealed an increased secretion of vWF in endotoxemic mice in the absence of the EPAC1 gene. Pharmacological inhibition of EPAC1 in vitro mimicked the EPAC1 -/- phenotype. EPAC1 regulated TNFα-triggered vWF secretion from human umbilical vein endothelial cells (HUVECs) in a phosphoinositide 3-kinases (PI3K)/endothelial nitric oxide synthase (eNOS)-dependent manner. Furthermore, EPAC1 activation reduced inflammation-triggered vWF release, both in vivo and in vitro . Our data delineate a novel regulatory role of EPAC1 in vWF secretion and shed light on potential development of new strategies to controlling thrombosis during inflammation. Key Point PI3K/eNOS pathway-mediated, inflammation-triggered vWF secretion is the target of the pharmacological manipulation of the cAMP-EPAC system.
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56
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Li P, Yang Z, Ma S, Hu G, Dong H, Zhang T. Susceptibility of porcine pulmonary microvascular endothelial cells to porcine reproductive and respiratory syndrome virus. J Vet Med Sci 2020; 82:1404-1409. [PMID: 32830156 PMCID: PMC7538327 DOI: 10.1292/jvms.20-0324] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Microvascular endothelial cells possess versatile functions and their roles in a variety of viral infections have been documented. Porcine reproductive and
respiratory syndrome virus (PRRSV) infection induces severe lung inflammatory lesions in piglets, which is manifested as pulmonary endothelial dysfunction.
However, the underlying mechanism of PRRSV affecting porcine pulmonary microvascular endothelial cells (PMECs) remains unknown. This study aimed to evaluate the
susceptibility of PMECs to PRRSV. Primary PMECs were isolated and purified from piglet lungs, and the expression of three PRRSV receptors was characterized
using immunofluorescence. Overt cytopathic effects of the PRRSV strain HN in PMECs were observed at day five post-infection, and PRRSV antigens in PMECs were
determined at both RNA and protein levels using immunofluorescence and quantitative RT-PCR assays. The viral antigen significantly increased at 96 hr
post-infection, and infectious virus was recovered from the supernatant of the infected PMECs. The results show that PMECs can be infected with the PRRSV strain
HN, and that their receptor expression pattern is different from that of alveolar macrophages. The results of this study shed light on the potential roles of
PMECs in PRRSV infection and provide a comprehensive understanding of the pathogenesis underlying its severe manifestation.
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Affiliation(s)
- Peishan Li
- Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, Beijing, 102206, P.R. China
| | - Zhongjin Yang
- Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, Beijing, 102206, P.R. China.,Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Beijing, 100000, P.R. China
| | - Shun Ma
- Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, Beijing, 102206, P.R. China
| | - Ge Hu
- Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, Beijing, 102206, P.R. China
| | - Hong Dong
- Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, Beijing, 102206, P.R. China
| | - Tao Zhang
- Beijing Key Laboratory of Traditional Chinese Veterinary Medicine, Beijing University of Agriculture, Beijing, 102206, P.R. China
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57
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Zomer HD, Reddi PP. Characterization of rodent Sertoli cell primary cultures. Mol Reprod Dev 2020; 87:857-870. [PMID: 32743879 PMCID: PMC7685524 DOI: 10.1002/mrd.23402] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 07/16/2020] [Indexed: 12/25/2022]
Abstract
Sertoli cells play a vital role in spermatogenesis by offering physical and nutritional support to the differentiating male germ cells. They form the blood-testis barrier and secrete growth factors essential for germ cell differentiation. Sertoli cell primary cultures are critical for understanding the regulation of spermatogenesis; however, obtaining pure cultures has been a challenge. Rodent Sertoli cell isolation protocols do not rule out contamination by the interstitial or connective tissue cells. Sertoli cell-specific markers could be helpful, but there is no consensus. Vimentin, the most commonly used marker, is not specific for Sertoli cells since its expression has been reported in peritubular myoid cells, mesenchymal stem cells, fibroblasts, macrophages, and endothelial cells, which contaminate Sertoli cell preparations. Markers based on transcription and growth factors also have limitations. Thus, the impediment to obtaining pure Sertoli cell cultures pertains to both the method of isolation and marker usage. The aim of this review is to discuss improvements to current methods of rodent Sertoli cell primary cultures, assess the properties of prepubertal versus mature Sertoli cell cultures, and propose steps to improve cellular characterization. Potential benefits of using contemporary approaches, including lineage tracing, specific cell ablation, and RNA-seq for obtaining Sertoli-specific transcript markers are discussed. Evaluating the specificity and applicability of these markers at the protein level to characterize Sertoli cells in culture would be critical. This review is expected to positively impact future work using primary cultures of rodent Sertoli cells.
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Affiliation(s)
- Helena D Zomer
- Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois Urbana Champaign, Urbana, Illinois
| | - Prabhakara P Reddi
- Department of Comparative Biosciences, College of Veterinary Medicine, University of Illinois Urbana Champaign, Urbana, Illinois
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58
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Harmful vimentin manifests itself as multiorgan failure. Eur J Hum Genet 2020; 28:1139-1140. [PMID: 32661328 PMCID: PMC7608120 DOI: 10.1038/s41431-020-0684-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 06/04/2020] [Indexed: 01/26/2023] Open
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59
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Nuthikattu S, Milenkovic D, Rutledge JC, Villablanca AC. Lipotoxic Injury Differentially Regulates Brain Microvascular Gene Expression in Male Mice. Nutrients 2020; 12:E1771. [PMID: 32545722 PMCID: PMC7353447 DOI: 10.3390/nu12061771] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 06/05/2020] [Accepted: 06/12/2020] [Indexed: 12/22/2022] Open
Abstract
The Western diet (WD) and hyperlipidemia are risk factors for vascular disease, dementia, and cognitive impairment. However, the molecular mechanisms are poorly understood. This pilot study investigated the genomic pathways by which the WD and hyperlipidemia regulate gene expression in brain microvessels. Five-week-old C57BL/6J wild type (WT) control and low-density lipoprotein receptor deficient (LDL-R-/-) male mice were fed the WD for eight weeks. Differential gene expression, gene networks and pathways, transcription factors, and non-protein coding RNAs were evaluated by a genome-wide microarray and bioinformatics analysis of laser-captured hippocampal microvessels. The WD resulted in the differential expression of 1972 genes. Much of the differentially expressed gene (DEG) was attributable to the differential regulation of cell signaling proteins and their transcription factors, approximately 4% was attributable to the differential expression of miRNAs, and 10% was due to other non-protein coding RNAs, primarily long non-coding RNAs (lncRNAs) and small nucleolar RNAs (snoRNAs) not previously described to be modified by the WD. Lipotoxic injury resulted in complex and multilevel molecular regulation of the hippocampal microvasculature involving transcriptional and post-transcriptional regulation and may provide a molecular basis for a better understanding of hyperlipidemia-associated dementia risk.
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Affiliation(s)
- Saivageethi Nuthikattu
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of California, One Shields Ave., The Grove, Rm 1159, Davis, CA 95616, USA; (S.N.); (D.M.); (J.C.R.)
| | - Dragan Milenkovic
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of California, One Shields Ave., The Grove, Rm 1159, Davis, CA 95616, USA; (S.N.); (D.M.); (J.C.R.)
- INRA, UNH, Université Clermont Auvergne, 63000 Clermont-Ferrand, France
| | - John C. Rutledge
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of California, One Shields Ave., The Grove, Rm 1159, Davis, CA 95616, USA; (S.N.); (D.M.); (J.C.R.)
| | - Amparo C. Villablanca
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of California, One Shields Ave., The Grove, Rm 1159, Davis, CA 95616, USA; (S.N.); (D.M.); (J.C.R.)
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60
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Zhang C, Wu W, Zhu H, Yu X, Zhang Y, Ye X, Cheng H, Ma R, Cui H, Luo J, Guan J, Chang X. Knockdown of long noncoding RNA CCDC144NL-AS1 attenuates migration and invasion phenotypes in endometrial stromal cells from endometriosis†. Biol Reprod 2020; 100:939-949. [PMID: 30496345 DOI: 10.1093/biolre/ioy252] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 10/13/2018] [Accepted: 11/27/2018] [Indexed: 02/06/2023] Open
Abstract
Endometriosis (EM) is a mysterious and complicated disease that has been found to be multifactorial. Recent studies demonstrated that long noncoding RNAs (lncRNAs) play an important role in the pathogenesis of EM. However, the functional and biological mechanisms of lncRNAs in EM remain unknown. Here, we performed microarray analyses to compare the lncRNA expression profiles of four paired ectopic endometrial (EC) tissues and eutopic endometrial (EU) tissues from patients with ovarian EM. A novel lncRNA, CCDC144NL-AS1, was identified as being potentially functional. CCDC144NL-AS1 expression was upregulated in EC tissues compared to EU and normal endometrial (NE) tissues. Its expression was higher in EC tissues than in EU tissues in 86.7% (26/30) of patients with EM. Despite the lack of a significant increase according to revised American Fertility Society (rAFS) stages, approximately 60% of stage VI EM cases exhibited higher CCDC144NL-AS1 levels, many more than in the stage II-III cases. Subcellular fractionation demonstrated that CCDC144NL-AS1 was localized in the cytoplasm and nucleus of the human EM-derived immortalized endometrial stromal cell line hEM15A. CCDC144NL-AS1 depletion suppressed the migration and invasion of hEM15A cells, but exerted no effects on cell adhesion, proliferation, apoptosis, or cell cycle. Knockdown of CCDC144NL-AS1 dramatically altered the distribution of cytoskeletal filamentous actin (F-actin) stress fibers compared to the negative control group treatment. Western blot analysis revealed that knockdown of CCDC144NL-AS1 attenuated the protein levels of vimentin filaments and MMP-9, but not N-cadherin or β-catenin. Collectively, our results suggest that CCDC144NL-AS1 might be involved in the pathogenesis of EM and provide a novel target for ovarian EM.
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Affiliation(s)
- Chen Zhang
- Center of Gynecologic Oncology, Peking University People's Hospital, Beijing, China
| | - Wei Wu
- Key Laboratory of RNA Biology, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Honglan Zhu
- Department of Obstetrics and Gynecology, Peking University People's Hospital, Beijing, China
| | - Xiaoming Yu
- Center of Reproductive Medicine, Peking University People's Hospital, Beijing, China
| | - Yinli Zhang
- Department of Pathology, Peking University People's Hospital, Beijing, China
| | - Xue Ye
- Center of Gynecologic Oncology, Peking University People's Hospital, Beijing, China
| | - Hongyan Cheng
- Center of Gynecologic Oncology, Peking University People's Hospital, Beijing, China
| | - Ruiqiong Ma
- Center of Gynecologic Oncology, Peking University People's Hospital, Beijing, China
| | - Heng Cui
- Center of Gynecologic Oncology, Peking University People's Hospital, Beijing, China
| | - Jianjun Luo
- Key Laboratory of RNA Biology, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Jing Guan
- Center of Reproductive Medicine, Peking University People's Hospital, Beijing, China
| | - Xiaohong Chang
- Center of Gynecologic Oncology, Peking University People's Hospital, Beijing, China
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61
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Caballé-Serrano J, Zhang S, Sculean A, Staehli A, Bosshardt DD. Tissue Integration and Degradation of a Porous Collagen-Based Scaffold Used for Soft Tissue Augmentation. MATERIALS 2020; 13:ma13102420. [PMID: 32466244 PMCID: PMC7287763 DOI: 10.3390/ma13102420] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 04/30/2020] [Accepted: 05/18/2020] [Indexed: 12/23/2022]
Abstract
Collagen-based scaffolds hold great potential for tissue engineering, since they closely mimic the extracellular matrix. We investigated tissue integration of an engineered porous collagen-elastin scaffold developed for soft tissue augmentation. After implantation in maxillary submucosal pouches in 6 canines, cell invasion (vimentin), extracellular matrix deposition (collagen type I) and scaffold degradation (cathepsin k, tartrate-resistant acid phosphatase (TRAP), CD86) were (immuno)-histochemically evaluated. Invasion of vimentin+ cells (scattered and blood vessels) and collagen type I deposition within the pores started at 7 days. At 15 and 30 days, vimentin+ cells were still numerous and collagen type I increasingly filled the pores. Scaffold degradation was characterized by collagen loss mainly occurring around 15 days, a time point when medium-sized multinucleated cells peaked at the scaffold margin with simultaneous labeling for cathepsin k, TRAP, and CD86. Elastin was more resistant to degradation and persisted up to 90 days in form of packages well-integrated in the newly formed soft connective tissue. In conclusion, this collagen-based scaffold maintained long-enough volume stability to allow an influx of blood vessels and vimentin+ fibroblasts producing collagen type I, that filled the scaffold pores before major biomaterial degradation and collapse occurred. Cathepsin k, TRAP and CD86 appear to be involved in scaffold degradation.
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Affiliation(s)
- Jordi Caballé-Serrano
- Robert K. Schenk Laboratory of Oral Histology, School of Dental Medicine, University of Bern, 3010 Bern, Switzerland; (J.C.-S.); (S.Z.)
- Department of Periodontology, School of Dental Medicine, University of Bern, 3010 Bern, Switzerland; (A.S.); (A.S.)
- Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Universitat Internacional de Catalunya, 08017 Barcelona, Spain
| | - Sophia Zhang
- Robert K. Schenk Laboratory of Oral Histology, School of Dental Medicine, University of Bern, 3010 Bern, Switzerland; (J.C.-S.); (S.Z.)
| | - Anton Sculean
- Department of Periodontology, School of Dental Medicine, University of Bern, 3010 Bern, Switzerland; (A.S.); (A.S.)
| | - Alexandra Staehli
- Department of Periodontology, School of Dental Medicine, University of Bern, 3010 Bern, Switzerland; (A.S.); (A.S.)
| | - Dieter D. Bosshardt
- Robert K. Schenk Laboratory of Oral Histology, School of Dental Medicine, University of Bern, 3010 Bern, Switzerland; (J.C.-S.); (S.Z.)
- Department of Periodontology, School of Dental Medicine, University of Bern, 3010 Bern, Switzerland; (A.S.); (A.S.)
- Correspondence: ; Tel.: +41-316328605
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Podstawski P, Witarski W, Szmatoła T, Bugno-Poniewierska M, Ropka-Molik K. Mobility and Invasion Related Gene Expression Patterns in Equine Sarcoid. Animals (Basel) 2020; 10:ani10050880. [PMID: 32438542 PMCID: PMC7278424 DOI: 10.3390/ani10050880] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 04/27/2020] [Accepted: 05/14/2020] [Indexed: 01/04/2023] Open
Abstract
Simple Summary The current studies profiled the expression of five equine sarcoid cell genes related to cell mobility and invasion (cell cycle control binding protein alpha, coronin 1b, metalloproteinase 2, tissue inhibitor of metalloproteinases 3 and vimentin) and compared the expression of these genes in healthy skin fibroblasts. Cells were collected from healthy and sarcoid-affected skin biopsies obtained by a qualified veterinarian. Gene expression patterns were investigated under two different conditions of cell culture, with high and low availability of nutritional components in the culture medium. The results showed significant differences in the expression of the two analyzed genes (coronin 1b and vimentin) depending on culture conditions. The obtained results emphasize the complexity of the genomic background of sarcoids and indicate the importance of further research on genes related to the physiological changes that occur in sarcoids. Abstract Sarcoids are the most common skin neoplasm in the Equidae family. Sarcoids are benign, but may cause severe damage in affected animals. Due to the high risk of post-treatment recurrence and the lack of an effective method of treatment, it is reasonable to perform studies on the molecular aspects of this neoplasm. Therefore, the present studies analyzed five genes (cell cycle control binding protein alpha, coronin 1b, metalloproteinase 2, tissue inhibitor of metalloproteinases 3 and vimentin) related to cell mobility and invasion traits. Primary healthy fibroblasts and sarcoid cells were obtained from skin biopsies. Cell lines were cultured in two different medium types with different concentrations of foetal bovine serum (10% and 0.5% FBS) to study its influence on the analyzed genes. Gene expression was measured using the real-time PCR method. The results showed significant differences in two genes (coronin and vimentin) depending on culture conditions. In conclusion, the results enabled finding two new genes, related to cell motility and invasion traits, in which gene expression is deregulated. Results of the study may put new knowledge into the complexity of the genetic background of this disease and show the importance of further analysis on this subject.
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Affiliation(s)
- Przemysław Podstawski
- Department of Animal Molecular Biology, Laboratory of Genomics, National Research Institute of Animal Production, Krakowska 1, 32-083 Balice, Poland; (W.W.); (T.S.); (K.R.-M.)
- Department of Animal Reproduction, Anatomy and Genomics, University of Agriculture in Kraków, Mickiewicza24/28, 30-059 Kraków, Poland;
- Correspondence:
| | - Wojciech Witarski
- Department of Animal Molecular Biology, Laboratory of Genomics, National Research Institute of Animal Production, Krakowska 1, 32-083 Balice, Poland; (W.W.); (T.S.); (K.R.-M.)
| | - Tomasz Szmatoła
- Department of Animal Molecular Biology, Laboratory of Genomics, National Research Institute of Animal Production, Krakowska 1, 32-083 Balice, Poland; (W.W.); (T.S.); (K.R.-M.)
- University Centre of Veterinary Medicine, University of Agriculture in Kraków, Mickiewicza 24/28, 30-059 Kraków, Poland
| | - Monika Bugno-Poniewierska
- Department of Animal Reproduction, Anatomy and Genomics, University of Agriculture in Kraków, Mickiewicza24/28, 30-059 Kraków, Poland;
| | - Katarzyna Ropka-Molik
- Department of Animal Molecular Biology, Laboratory of Genomics, National Research Institute of Animal Production, Krakowska 1, 32-083 Balice, Poland; (W.W.); (T.S.); (K.R.-M.)
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Ha X, Wang J, Chen K, Deng Y, Zhang X, Feng J, Li X, Zhu J, Ma Y, Qiu T, Wang C, Xie J, Zhang J. Free Fatty Acids Promote the Development of Prostate Cancer by Upregulating Peroxisome Proliferator-Activated Receptor Gamma. Cancer Manag Res 2020; 12:1355-1369. [PMID: 32158268 PMCID: PMC7048952 DOI: 10.2147/cmar.s236301] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 01/31/2020] [Indexed: 12/11/2022] Open
Abstract
Introduction As one of the most common forms of cancer that threatens men's health, prostate cancer (PCa) is under a trend of increasing morbidity and mortality in most countries. More and more studies have pointed out that obesity is closely linked to the occurrence and development of PCa, although there are still many undiscovered molecular mechanisms between the two. Methods In the present study, we compare serum lipid levels in patients with PCa and normal individuals. PCa cells (PC3 and 22RV1) were cultured in vitro, the TC/TG/HDL/GLU assay kit was used to detect the glucose and lipid metabolism level of PCa cells, the flow cytometry technique was used to detect the proliferation ability of PCa cells, and the Transwell was used to detect the invasion and migration ability of PCa cells. Western blot/quantitative real-time PCR was used to detect peroxisome proliferator-activated receptor γ (PPARγ) and vimentin/vascular endothelial growth factor-A (VEGF-A) expression levels, and immunohistochemistry was used to observe tumor-associated gene expression levels in nude mice. All data were analysed using the Independent samples t-test or rank sum test. Results We found higher levels of FFA in the serum of patients with PCa. In vitro experiments have demonstrated that high levels of FFA can promote the proliferation, migration and invasion of two PCa cells (PC3 and 22RV1) and affect the energy metabolism of PCa cells. The upregulated PPARγ plays a key role in this process, and vimentin may be involved in this signaling pathway. Conclusion We infer that high levels of FFA may promote PCa development by upregulating PPARγ expression.
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Affiliation(s)
- Xiaodan Ha
- Shihezi University School of Medicine, Bei-Er-Lu, Shihezi, Xinjiang 832000, People's Republic of China
| | - Jingzhou Wang
- Shihezi University School of Medicine, Bei-Er-Lu, Shihezi, Xinjiang 832000, People's Republic of China
| | - Keru Chen
- Shihezi University School of Medicine, Bei-Er-Lu, Shihezi, Xinjiang 832000, People's Republic of China
| | - Yuchun Deng
- Shihezi University School of Medicine, Bei-Er-Lu, Shihezi, Xinjiang 832000, People's Republic of China
| | - Xueting Zhang
- Shihezi University School of Medicine, Bei-Er-Lu, Shihezi, Xinjiang 832000, People's Republic of China
| | - Jiale Feng
- Shihezi University School of Medicine, Bei-Er-Lu, Shihezi, Xinjiang 832000, People's Republic of China
| | - Xue Li
- Shihezi University School of Medicine, Bei-Er-Lu, Shihezi, Xinjiang 832000, People's Republic of China
| | - Jiaojiao Zhu
- Shihezi University School of Medicine, Bei-Er-Lu, Shihezi, Xinjiang 832000, People's Republic of China
| | - Yinghua Ma
- Shihezi University School of Medicine, Bei-Er-Lu, Shihezi, Xinjiang 832000, People's Republic of China
| | - Tongtong Qiu
- Shihezi University School of Medicine, Bei-Er-Lu, Shihezi, Xinjiang 832000, People's Republic of China
| | - Cuizhe Wang
- Shihezi University School of Medicine, Bei-Er-Lu, Shihezi, Xinjiang 832000, People's Republic of China
| | - Jianxin Xie
- Shihezi University School of Medicine, Bei-Er-Lu, Shihezi, Xinjiang 832000, People's Republic of China
| | - Jun Zhang
- Shihezi University School of Medicine, Bei-Er-Lu, Shihezi, Xinjiang 832000, People's Republic of China
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Wang W, Sun J, Wang N, Sun Z, Ma Q, Li J, Zhang M, Xu J. Enterovirus A71 capsid protein VP1 increases blood-brain barrier permeability and virus receptor vimentin on the brain endothelial cells. J Neurovirol 2020; 26:84-94. [PMID: 31512144 PMCID: PMC7040057 DOI: 10.1007/s13365-019-00800-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 08/01/2019] [Accepted: 08/25/2019] [Indexed: 12/22/2022]
Abstract
Enterovirus A71 (EV-A71) is the major cause of severe hand-foot-and-mouth diseases (HFMD), especially encephalitis and other nervous system diseases. EV-A71 capsid protein VP1 mediates virus attachment and is the important virulence factor in the EV-A71pathogenesis. In this study, we explored the roles of VP1 in the permeability of blood-brain barrier (BBB). Sera albumin, Evans blue, and dextran leaked into brain parenchyma of the 1-week-old C57BL/6J mice intracranially injected with VP1 recombinant protein. VP1 also increased the permeability of the brain endothelial cells monolayer, an in vitro BBB model. Tight junction protein claudin-5 was reduced in the brain tissues or brain endothelial cells treated with VP1. In contrast, VP1 increased the expression of virus receptor vimentin, which could be blocked with VP1 neutralization antibody. Vimentin expression in the VP1-treated brain endothelial cells was regulated by TGF-β/Smad-3 and NF-κB signal pathways. Moreover, vimentin over-expression was accompanied with compromised BBB. From these studies, we conclude that EV-A71 virus capsid protein VP1 disrupted BBB and increased virus receptor vimentin, which both may contribute to the virus entrance into brain and EV-A71 CNS infection.
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Affiliation(s)
- Wenjing Wang
- Department of Infectious Disease, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
- Department of Infectious Disease, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210029, China
| | - Jiandong Sun
- Department of Infectious Disease, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210029, China
| | - Nan Wang
- Department of Respiratory Medicine, People's Hospital of Gaochun, Nanjing, 211300, China
| | - Zhixiao Sun
- Department of Respiratory Medicine, People's Hospital of Gaochun, Nanjing, 211300, China
| | - Qiyun Ma
- Department of Respiratory Medicine, People's Hospital of Gaochun, Nanjing, 211300, China
| | - Jun Li
- Department of Infectious Disease, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
| | - Mingshun Zhang
- Key Lab of Antibody Technique of Health Ministry, Nanjing Medical University, Nanjing, 210016, China.
- Department of Immunology, Nanjing Medical University, Nanjing, 210016, China.
| | - Juan Xu
- Department of Immunology, Nanjing Medical University, Nanjing, 210016, China.
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Almacellas-Rabaiget O, Monaco P, Huertas-Martinez J, García-Monclús S, Chicón-Bosch M, Maqueda-Marcos S, Fabra-Heredia I, Herrero-Martín D, Rello-Varona S, de Alava E, López-Alemany R, Giangrande PH, Tirado OM. LOXL2 promotes oncogenic progression in alveolar rhabdomyosarcoma independently of its catalytic activity. Cancer Lett 2020; 474:1-14. [PMID: 31911079 DOI: 10.1016/j.canlet.2019.12.040] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 12/05/2019] [Accepted: 12/21/2019] [Indexed: 12/25/2022]
Abstract
Rhabdomyosarcoma (RMS) is the most common soft tissue malignancy in childhood and adolescence. Patients with the most aggressive histological variant have an unfavorable prognosis due to a high metastasis incidence. Lysyl oxidase-like 2 (LOXL2) is a lysyl oxidase, member of a family of extracellular matrix (ECM) crosslinking enzymes that recently have emerged as important regulators of tumor progression and metastasis. We report that LOXL2 is overexpressed in RMS, suggesting a potential role for LOXL2 in RMS oncogenic progression. Consistently, transient and stable LOXL2 knockdown decreased cell migratory and invasive capabilities in two ARMS cell lines. Furthermore, introduction of LOXL2 in RMS non-expressing cells using wild type or mutated (catalytically inactive) constructs resulted in increased cell migration, cell invasion and number and incidence of spontaneous lung metastasis in vivo, independently of its catalytic activity. To further study the molecular mechanism associated with LOXL2 expression, a pull-down assay on LOXL2-transfected cells was performed and analyzed by mass spectrometry. The intermediated filament protein vimentin was validated as a LOXL2-interactor. Thus, our results suggest an oncogenic role of LOXL2 in RMS by regulating cytoskeleton dynamics and cell motility capabilities.
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Affiliation(s)
- Olga Almacellas-Rabaiget
- Sarcoma Research Group, Oncobell Program, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
| | - Paola Monaco
- Sarcoma Research Group, Oncobell Program, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
| | - Juan Huertas-Martinez
- Sarcoma Research Group, Oncobell Program, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
| | - Silvia García-Monclús
- Sarcoma Research Group, Oncobell Program, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
| | - Mariona Chicón-Bosch
- Sarcoma Research Group, Oncobell Program, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
| | - Susana Maqueda-Marcos
- Sarcoma Research Group, Oncobell Program, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
| | - Isabel Fabra-Heredia
- Sarcoma Research Group, Oncobell Program, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
| | - David Herrero-Martín
- Sarcoma Research Group, Oncobell Program, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain; CIBERONC, Carlos III Institute of Health (ISCIII), Madrid, Spain
| | - Santiago Rello-Varona
- Sarcoma Research Group, Oncobell Program, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
| | - Enrique de Alava
- CIBERONC, Carlos III Institute of Health (ISCIII), Madrid, Spain; Laboratory of Molecular Pathology, Instituto de Biomedicina de Sevilla (IBiS), Hospital Universitario Virgen Del Rocío/CSIC/Universidad de Sevilla, Sevilla, Spain
| | - Roser López-Alemany
- Sarcoma Research Group, Oncobell Program, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain
| | - Paloma H Giangrande
- Department of Internal Medicine, Molecular and Cellular Biology Program, Abboud Cardiovascular Research Center, Holden Comprehensive Cancer Center, University of Iowa, Iowa City, IA, USA
| | - Oscar M Tirado
- Sarcoma Research Group, Oncobell Program, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain; CIBERONC, Carlos III Institute of Health (ISCIII), Madrid, Spain; Institut Català D'Oncologia (ICO), L'Hospitalet de Llobregat, Barcelona, Spain.
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Rodella A, Pozzobon M, Rigon M, Franchin C, Arrigoni G, Simonato M, Ghinelli E, Vedovelli L. Topical application of lyophilized and powdered human amniotic membrane promotes diabetic ulcer healing. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.wndm.2019.100171] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Wang PW, Wu TH, Lin TY, Chen MH, Yeh CT, Pan TL. Characterization of the Roles of Vimentin in Regulating the Proliferation and Migration of HSCs during Hepatic Fibrogenesis. Cells 2019; 8:cells8101184. [PMID: 31581522 PMCID: PMC6830351 DOI: 10.3390/cells8101184] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 09/29/2019] [Accepted: 09/29/2019] [Indexed: 12/17/2022] Open
Abstract
The activation of hepatic stellate cells (HSCs) manifested as proliferation and migration is the pivotal event involved in liver fibrogenesis. The vimentin network, an intermediate filament (IF) system, is one of the critical cascades by which the cell morphology, growth, and motility are modulated. However, the vimentin-mediated cytoskeletal cross talk, as well as the signaling transduction, which further coordinates the cellular responses during hepatic fibrogenesis, is poorly understood. In the current study, both messenger RNA (mRNA) and the vimentin protein were significantly increased in a time-dependent manner in the dimethylnitrosamine (DMN)-exposed liver. In particular, vimentin was highly expressed in the activated HSCs. Again, the overexpressed vimentin was observed in the plasma samples derived from patients with hepatic fibrosis/cirrhosis, suggesting that vimentin may be a key factor in regulating the progression of liver fibrosis. Meanwhile, vimentin knockdown suppressed the migratory propensity, provoked morphological changes, and disturbed the focal adhesions in the HSCs due to the breakdown of associated cytoskeletal proteins. Western blotting showed that vimentin deletion inhibited proliferating cell nuclear antigen (PCNA) and arrested the Rho GTPase family, thereby impairing the HSCs’ growth as well as motility. The phosphorylated extracellular-signal regulated kinase (ERK) and AKT signals were also notably reduced in response to the silence of vimentin. Inhibitors of selected signaling pathways suppressed the migration and differentiation of activated HSCs by regulating specific serine phosphorylated sites on vimentin. Taken together, these findings revealed a novel mechanism of vimentin through which various signaling pathways controlled the proliferation, differentiation, and movement of the HSCs via the ERK/AKT and Rho cascades.
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Affiliation(s)
- Pei-Wen Wang
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 40447, Taiwan.
| | - Tung-Ho Wu
- Division of Cardiovascular Surgery, Veterans General Hospital, Kaohsiung 81362, Taiwan.
| | - Tung-Yi Lin
- Department of Chinese Medicine, Chang Gung Memorial Hospital, Keelung 20401, Taiwan.
- School of Traditional Chinese Medicine, Chang Gung University, Taoyuan 33302, Taiwan.
| | - Mu-Hong Chen
- Department of Psychiatry, Taipei Veterans General Hospital, Taipei 11217, Taiwan.
- Department of Psychiatry, College of Medicine, National Yang-Ming University, Taipei 11221, Taiwan.
| | - Chau-Ting Yeh
- Liver Research Center, Chang Gung Memorial Hospital, Taoyuan 33375, Taiwan.
| | - Tai-Long Pan
- School of Traditional Chinese Medicine, Chang Gung University, Taoyuan 33302, Taiwan.
- Liver Research Center, Chang Gung Memorial Hospital, Taoyuan 33375, Taiwan.
- Chinese Herbal Medicine Research Team, Healthy Aging Research Center, Chang Gung University, Taoyuan 33302, Taiwan.
- Research Center for Chinese Herbal Medicine and Research Center for Food and Cosmetic Safety, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 33303, Taiwan.
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Zuo A, Zhao P, Zheng Y, Hua H, Wang X. Tripterine inhibits proliferation, migration and invasion of breast cancer MDA-MB-231 cells by up-regulating microRNA-15a. Biol Chem 2019; 400:1069-1078. [PMID: 30913029 DOI: 10.1515/hsz-2018-0469] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 03/19/2019] [Indexed: 01/17/2023]
Abstract
Breast cancer is the most commonly diagnosed cancer in women worldwide. Tripterine is an important active component isolated from Triperygium wilfordii Hook F. This study investigated the effects of tripterine on breast cancer cell proliferation, migration, invasion and apoptosis, as well as microRNA-15a (miR-15a) expression. Quantitative reverse transcription-polymerase chain reaction (qRT-PCR) was performed to measure the expression of miR-15a. Cell transfection was conducted to change the expression of miR-15a. Viability, proliferation, migration, invasion and apoptosis of MDA-MB-231 cells were assessed using the cell counting kit-8 (CCK-8) assay, BrdU incorporation assay, Annexin V-FITC/PI apoptosis detection kit and two-chamber Transwell assay, respectively. Expression of key factors involving in cell proliferation, migration, invasion and apoptosis, as well as the PI3K/AKT and JNK pathways, were evaluated using Western blotting. We found that tripterine inhibited MDA-MB-231 cell viability, proliferation, migration and invasion, but induced cell apoptosis. Moreover, tripterine up-regulated the expression of miR-15a in a concentration-dependent manner and miR-15a participated in the effects of tripterine on MDA-MB-231 cell proliferation, migration, invasion and apoptosis. In addition, tripterine inactivated PI3K/AKT and JNK pathways in MDA-MB-231 cells by up-regulating miR-15a. In conclusion, tripterine inhibited proliferation, migration and invasion of breast cancer MDA-MB-231 cells by up-regulating miR-15a and inactivating PI3K/AKT and JNK pathways.
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Affiliation(s)
- Anjun Zuo
- Department of General Surgery, The Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - Peng Zhao
- Department of Pathology, The Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - Yu Zheng
- Department of General Internal Medicine, The Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - Hui Hua
- Department of Thyroid Surgery, The Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - Xingang Wang
- Department of Breast Surgery, The Affiliated Hospital of Qingdao University, No. 59 Haier Road, Qingdao 266000, China
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Joshi D, Inamdar MS. Rudhira/BCAS3 couples microtubules and intermediate filaments to promote cell migration for angiogenic remodeling. Mol Biol Cell 2019; 30:1437-1450. [PMID: 30995157 PMCID: PMC6724693 DOI: 10.1091/mbc.e18-08-0484] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Blood vessel formation requires endothelial cell (EC) migration that depends on dynamic remodeling of the cytoskeleton. Rudhira/Breast Carcinoma Amplified Sequence 3 (BCAS3) is a cytoskeletal protein essential for EC migration and sprouting angiogenesis during mouse development and is implicated in metastatic disease. Here, we report that Rudhira mediates cytoskeleton organization and dynamics during EC migration. Rudhira binds to both microtubules (MTs) and vimentin intermediate filaments (IFs) and stabilizes MTs. Rudhira depletion impairs cytoskeletal cross-talk, MT stability, and hence focal adhesion disassembly. The BCAS3 domain of Rudhira is necessary and sufficient for MT-IF cross-linking and cell migration. Pharmacologically restoring MT stability rescues gross cytoskeleton organization and angiogenic sprouting in Rudhira-depleted cells. Our study identifies the novel and essential role of Rudhira in cytoskeletal cross-talk and assigns function to the conserved BCAS3 domain. Targeting Rudhira could allow tissue-restricted cytoskeleton modulation to control cell migration and angiogenesis in development and disease.
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Affiliation(s)
- Divyesh Joshi
- Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560064, India
| | - Maneesha S Inamdar
- Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560064, India.,Institute for Stem Cell Biology and Regenerative Medicine, Bangalore 560065, India
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Santos Rizzo Zuttion MS, Dias Câmara DA, Dariolli R, Takimura C, Wenceslau C, Kerkis I. In vitro heterogeneity of porcine adipose tissue-derived stem cells. Tissue Cell 2019; 58:51-60. [PMID: 31133246 DOI: 10.1016/j.tice.2019.04.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Revised: 04/01/2019] [Accepted: 04/01/2019] [Indexed: 01/27/2023]
Abstract
Tissue-specific adult stem cells (ASC) are heterogeneous and characterized by a mix of progenitor cells that produce cells at various stages of differentiation, and ultimately different terminally differentiated cells. Understanding the heterogeneity of ASCs may lead to the development of improved protocols of cell isolation and optimized cell therapy clinical protocols. Using a combination of enzymatic and explant culture protocols, we obtained pADSC population, which is composed by two distinct morphologies: fibroblast-like cells (FLCs) and endothelial-like cells (ELCs). Both cell sub-types efficiently formed colonies, expressed CD90+/CD105+/CD44+, and differentially expressed such markers such as Nestin, Vimentin, Fibronectin, Cytokeratin, Connexin 43, CD31, CD34 and CD146 as well as the pluripotent stem cell markers Oct-4, Nanog and Sox2. Mixed populations of pADSCs did not lose their multipotentiality and the cells were able to undergo osteogenic, chondrogenic, adipogenic and myogenic differentiation. Furthermore, the mixed population spontaneously formed capillary tube structures. Our findings suggest that different subpopulations can be isolated from adipose tissue and that the ADSCs need to be better evaluated using a wide panel of different markers related to cell differentiation, which is important for stem cell therapy and regenerative medicine, particularly for advanced stem cells therapies - products that are currently under investigation or even use.
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Affiliation(s)
- Marilia Sanches Santos Rizzo Zuttion
- Laboratory of Genetics, Butantan Institute, Av. Vital Brasil, 1500 - Butantã, São Paulo, SP, 05503-900, Brazil; Federal University of São Paulo, R. Sena Madureira, 1500 - Vila Clementino, São Paulo, SP, 04021-001, Brazil.
| | - Diana Aparecida Dias Câmara
- Laboratory of Genetics, Butantan Institute, Av. Vital Brasil, 1500 - Butantã, São Paulo, SP, 05503-900, Brazil; Federal University of São Paulo, R. Sena Madureira, 1500 - Vila Clementino, São Paulo, SP, 04021-001, Brazil.
| | - Rafael Dariolli
- Heart Institute (InCor), University of São Paulo Medical School, Brazil: Av. Dr. Enéas de Carvalho Aguiar, 44 - Pinheiros, São Paulo, SP, 05403-900, Brazil.
| | - Celso Takimura
- Heart Institute (InCor), University of São Paulo Medical School, Brazil: Av. Dr. Enéas de Carvalho Aguiar, 44 - Pinheiros, São Paulo, SP, 05403-900, Brazil.
| | - Cristiane Wenceslau
- Laboratory of Genetics, Butantan Institute, Av. Vital Brasil, 1500 - Butantã, São Paulo, SP, 05503-900, Brazil.
| | - Irina Kerkis
- Laboratory of Genetics, Butantan Institute, Av. Vital Brasil, 1500 - Butantã, São Paulo, SP, 05503-900, Brazil; Federal University of São Paulo, R. Sena Madureira, 1500 - Vila Clementino, São Paulo, SP, 04021-001, Brazil.
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Qureshi MS, Alsughayyir J, Chhabra M, Ali JM, Goddard MJ, Devine CA, Conlon TM, Linterman MA, Motallebzadeh R, Pettigrew GJ. Germinal center humoral autoimmunity independently mediates progression of allograft vasculopathy. J Autoimmun 2019; 98:44-58. [DOI: 10.1016/j.jaut.2018.11.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 11/27/2018] [Accepted: 11/30/2018] [Indexed: 12/18/2022]
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Dong Z, Coates D, Liu Q, Sun H, Li C. Quantitative proteomic analysis of deer antler stem cells as a model of mammalian organ regeneration. J Proteomics 2019; 195:98-113. [DOI: 10.1016/j.jprot.2019.01.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 12/25/2018] [Accepted: 01/07/2019] [Indexed: 12/18/2022]
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Calpain drives pyroptotic vimentin cleavage, intermediate filament loss, and cell rupture that mediates immunostimulation. Proc Natl Acad Sci U S A 2019; 116:5061-5070. [PMID: 30796192 DOI: 10.1073/pnas.1818598116] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Pyroptosis is an inflammatory form of programmed cell death following cellular damage or infection. It is a lytic process driven by gasdermin D-mediated cellular permeabilization and presumed osmotic forces thought to induce swelling and rupture. We found that pyroptotic cells do not spontaneously rupture in culture but lose mechanical resilience. As a result, cells were susceptible to rupture by extrinsic forces, such as shear stress or compression. Cell analyses revealed that all major cytoskeleton components were disrupted during pyroptosis and that sensitivity to rupture was calpain-dependent and linked with cleavage of vimentin and loss of intermediate filaments. Moreover, while release of lactate dehydrogenase (LDH), HMGB1, and IL-1β occurred without rupture, rupture was required for release of large inflammatory stimuli-ASC specks, mitochondria, nuclei, and bacteria. Importantly, supernatants from ruptured cells were more immunostimulatory than those from nonruptured cells. These observations reveal undiscovered cellular events occurring during pyroptosis, define the mechanisms driving pyroptotic rupture, and highlight the immunologic importance of this event.
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Secretory vimentin is associated with coronary artery disease in patients and induces atherogenesis in ApoE -/- mice. Int J Cardiol 2019; 283:9-16. [PMID: 30808602 DOI: 10.1016/j.ijcard.2019.02.032] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 01/25/2019] [Accepted: 02/15/2019] [Indexed: 11/22/2022]
Abstract
PURPOSE The present study aimed to investigate the relationship between serum levels of secretory vimentin and coronary artery disease (CAD). The biological effect of secretory vimentin was ascertained by experiments. METHODS We analysed serum levels of secretory vimentin in CAD patients (n = 288) and non-CAD controls (n = 195) by ELISA. To evaluate the pro-inflammatory effects of secreted vimentin, the human aortic endothelial cells (HAECs) and human peripheral blood mononuclear cells (PBMCs) were treated with recombinant vimentin or saline. Intraperitoneal injection of vimentin (1 μg/each) or saline was performed every other day for 12 weeks in ApoE-/- mice for assessment of atherogenic effect. RESULTS Serum levels of secretory vimentin were significantly increased in CAD patients than in health controls (p < 0.05), and correlated with the number of diseased coronary arteries, Syntax and Gensini score (for all comparison, p < 0.01). Logistic regression analysis showed that vimentin level is an independent determinant of CAD. In experiments, recombinant vimentin protein enhanced the expression of adhesion molecules and inflammatory cytokines in both endothelial cells and macrophages. This protein also promoted macrophage-endothelial cells adhesion in vitro and the recruitment of leukocytes to mesenteric venules in C57BL/6 mice. Compared with saline, intraperitoneal injection of recombinant vimentin (1 μg/each) every other day induced atherogenesis in ApoE-/- mice at 12-weeks, with significant increase of inflammatory cytokine and adhesion molecules expression in aortic tissue (p < 0.05). CONCLUSION Serum vimentin levels are associated with the presence and the severity of CAD. Vimentin protein promotes atherogenesis in ApoE-/- mice.
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Kumar V, Mohamed MS, Veeranarayanan S, Maekawa T, Kumar DS. Functionalized Carbon Nanowalls as Pro-Angiogenic Scaffolds for Endothelial Cell Activation. ACS APPLIED BIO MATERIALS 2019; 2:1119-1130. [DOI: 10.1021/acsabm.8b00724] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Vimal Kumar
- Bio-Nano Electronics Research Centre, Graduate School of Interdisciplinary New Science, Toyo University, Kawagoe, Saitama 350-8585, Japan
| | - M. Sheikh Mohamed
- Bio-Nano Electronics Research Centre, Graduate School of Interdisciplinary New Science, Toyo University, Kawagoe, Saitama 350-8585, Japan
| | - Srivani Veeranarayanan
- Bio-Nano Electronics Research Centre, Graduate School of Interdisciplinary New Science, Toyo University, Kawagoe, Saitama 350-8585, Japan
| | - Toru Maekawa
- Bio-Nano Electronics Research Centre, Graduate School of Interdisciplinary New Science, Toyo University, Kawagoe, Saitama 350-8585, Japan
| | - D. Sakthi Kumar
- Bio-Nano Electronics Research Centre, Graduate School of Interdisciplinary New Science, Toyo University, Kawagoe, Saitama 350-8585, Japan
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Danielsson F, Peterson MK, Caldeira Araújo H, Lautenschläger F, Gad AKB. Vimentin Diversity in Health and Disease. Cells 2018; 7:E147. [PMID: 30248895 PMCID: PMC6210396 DOI: 10.3390/cells7100147] [Citation(s) in RCA: 157] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 09/16/2018] [Accepted: 09/17/2018] [Indexed: 12/11/2022] Open
Abstract
Vimentin is a protein that has been linked to a large variety of pathophysiological conditions, including cataracts, Crohn's disease, rheumatoid arthritis, HIV and cancer. Vimentin has also been shown to regulate a wide spectrum of basic cellular functions. In cells, vimentin assembles into a network of filaments that spans the cytoplasm. It can also be found in smaller, non-filamentous forms that can localise both within cells and within the extracellular microenvironment. The vimentin structure can be altered by subunit exchange, cleavage into different sizes, re-annealing, post-translational modifications and interacting proteins. Together with the observation that different domains of vimentin might have evolved under different selection pressures that defined distinct biological functions for different parts of the protein, the many diverse variants of vimentin might be the cause of its functional diversity. A number of review articles have focussed on the biology and medical aspects of intermediate filament proteins without particular commitment to vimentin, and other reviews have focussed on intermediate filaments in an in vitro context. In contrast, the present review focusses almost exclusively on vimentin, and covers both ex vivo and in vivo data from tissue culture and from living organisms, including a summary of the many phenotypes of vimentin knockout animals. Our aim is to provide a comprehensive overview of the current understanding of the many diverse aspects of vimentin, from biochemical, mechanical, cellular, systems biology and medical perspectives.
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Affiliation(s)
- Frida Danielsson
- Science for Life Laboratory, Royal Institute of Technology, 17165 Stockholm, Sweden.
| | | | | | - Franziska Lautenschläger
- Campus D2 2, Leibniz-Institut für Neue Materialien gGmbH (INM) and Experimental Physics, NT Faculty, E 2 6, Saarland University, 66123 Saarbrücken, Germany.
| | - Annica Karin Britt Gad
- Centro de Química da Madeira, Universidade da Madeira, 9020105 Funchal, Portugal.
- Department of Medical Biochemistry and Microbiology, Uppsala University, 75237 Uppsala, Sweden.
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Musaelyan A, Lapin S, Nazarov V, Tkachenko O, Gilburd B, Mazing A, Mikhailova L, Shoenfeld Y. Vimentin as antigenic target in autoimmunity: A comprehensive review. Autoimmun Rev 2018; 17:926-934. [DOI: 10.1016/j.autrev.2018.04.004] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Accepted: 04/06/2018] [Indexed: 12/20/2022]
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Dong Y, Zheng Y, Wang C, Ding X, Du Y, Liu L, Zhang W, Zhang W, Zhong Y, Wu Y, Song X. MiR-876-5p modulates head and neck squamous cell carcinoma metastasis and invasion by targeting vimentin. Cancer Cell Int 2018; 18:121. [PMID: 30181714 PMCID: PMC6114268 DOI: 10.1186/s12935-018-0619-7] [Citation(s) in RCA: 27] [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: 07/13/2018] [Accepted: 08/14/2018] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Local or distant metastasis remains the main course of death in head and neck squamous cell carcinoma (HNSCC) patients. MicroRNAs (miRNAs) have been implicated in metastasis of HNSCC, but the mechanisms of their action are mainly undocumented. Through public head and neck cancer miRNA expression datasets, we found that miR-876-5p was a novel potential tumor suppressor targeting HNSCC metastasis. METHODS Clinical significance and mechanism of miR-876-5P was systematically analyzed in HNSCC. Quantitative RT-PCR was used to evaluate miR-876-5p levels in HNSCC cell lines and in 20 pairs of HNSCC with associated regional nodal metastases and HNSCC without metastatic primary tumors. Scratch and invasion assays were evaluated to determine the role of miR-876-5p in the regulation of HNSCC cell migration and invasion, respectively. Western blotting was used to investigate the mechanism by which miR-876-5p suppresses HNSCC cell invasion and migration. Luciferase assays were performed to assess miR-876-5p binding to the vimentin gene. The animal model was used to support the in vitro experimental findings. RESULTS MiR-876-5p mimics inhibited HNSCC cell migration and invasion. Vimentin protein and mRNA levels were decreased in the miR-876-5p mimics group but increased in the miR-876-5p inhibitors group, which demonstrated that miR-876-5p inhibits vimentin expression in HNSCC cells. By directly targeting the vimentin 3'-UTR, we used dual-luciferase reporter assays to verify that vimentin is a functional downstream target of miR-876-5p. Importantly, increased vimentin expression promoted cell migration and invasion, and co-transfection with miR-876-5p mimics and vimentin restored cell aggressiveness to the original level. Moreover, miR-876-5p overexpression significantly downregulated vimentin expression level and inhibited the distal metastasis of HNSCC cells in vivo. CONCLUSIONS miR-876-5p, which functions as a tumor suppressor in HNSCC, inhibits metastasis by targeting vimentin and provides a novel therapeutic target for HNSCC treatment.
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Affiliation(s)
- Yibo Dong
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, 140, Hanzhong Road, Nanjing, 210029 China
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, 136, Hanzhong Road, Nanjing, 210029 China
| | - Yang Zheng
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, 140, Hanzhong Road, Nanjing, 210029 China
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, 136, Hanzhong Road, Nanjing, 210029 China
| | - Chundi Wang
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, 140, Hanzhong Road, Nanjing, 210029 China
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, 136, Hanzhong Road, Nanjing, 210029 China
| | - Xu Ding
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, 140, Hanzhong Road, Nanjing, 210029 China
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, 136, Hanzhong Road, Nanjing, 210029 China
| | - Yifei Du
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, 140, Hanzhong Road, Nanjing, 210029 China
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, 136, Hanzhong Road, Nanjing, 210029 China
| | - Laikui Liu
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, 140, Hanzhong Road, Nanjing, 210029 China
| | - Wei Zhang
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, 140, Hanzhong Road, Nanjing, 210029 China
| | - Wei Zhang
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, 140, Hanzhong Road, Nanjing, 210029 China
- Department of Oral Pathology, Affiliated Hospital of Stomatology, Nanjing Medical University, 136, Hanzhong Road, Nanjing, 210029 China
| | - Yi Zhong
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, 140, Hanzhong Road, Nanjing, 210029 China
- Department of Oral Pathology, Affiliated Hospital of Stomatology, Nanjing Medical University, 136, Hanzhong Road, Nanjing, 210029 China
| | - Yunong Wu
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, 140, Hanzhong Road, Nanjing, 210029 China
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, 136, Hanzhong Road, Nanjing, 210029 China
| | - Xiaomeng Song
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, 140, Hanzhong Road, Nanjing, 210029 China
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Stomatology, Nanjing Medical University, 136, Hanzhong Road, Nanjing, 210029 China
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Guo ZH, Zhang W, Jia YYS, Liu QX, Li ZF, Lin JS. An Insight into the Difficulties in the Discovery of Specific Biomarkers of Limbal Stem Cells. Int J Mol Sci 2018; 19:ijms19071982. [PMID: 29986467 PMCID: PMC6073450 DOI: 10.3390/ijms19071982] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 06/25/2018] [Accepted: 06/29/2018] [Indexed: 12/13/2022] Open
Abstract
Keeping the integrity and transparency of the cornea is the most important issue to ensure normal vision. There are more than 10 million patients going blind due to the cornea diseases worldwide. One of the effective ways to cure corneal diseases is corneal transplantation. Currently, donations are the main source of corneas for transplantation, but immune rejection and a shortage of donor corneas are still serious problems. Graft rejection could cause transplanted cornea opacity to fail. Therefore, bioengineer-based corneas become a new source for corneal transplantation. Limbal stem cells (LSCs) are located at the basal layer in the epithelial palisades of Vogt, which serve a homeostatic function for the cornea epithelium and repair the damaged cornea. LSC-based transplantation is one of the hot topics currently. Clinical data showed that the ratio of LSCs to total candidate cells for a transplantation has a significant impact on the effectiveness of the transplantation. It indicates that it is very important to accurately identify the LSCs. To date, several putative biomarkers of LSCs have been widely reported, whereas their specificity is controversial. As reported, the identification of LSCs is based on the characteristics of stem cells, such as a nuclear-to-cytoplasm ratio (N/C) ≥ 0.7, label-retaining, and side population (SP) phenotype. Here, we review recently published data to provide an insight into the circumstances in the study of LSC biomarkers. The particularities of limbus anatomy and histochemistry, the limits of the current technology level for LSC isolation, the heterogeneity of LSCs and the influence of enzyme digestion are discussed. Practical approaches are proposed in order to overcome the difficulties in basic and applied research for LSC-specific biomarkers.
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Affiliation(s)
- Zhi Hou Guo
- School of Medicine, Huaqiao University, Quanzhou 362021, China.
| | - Wei Zhang
- School of Medicine, Huaqiao University, Quanzhou 362021, China.
| | | | - Qing Xiu Liu
- School of Medicine, Huaqiao University, Quanzhou 362021, China.
| | - Zhao Fa Li
- School of Medicine, Huaqiao University, Quanzhou 362021, China.
| | - Jun Sheng Lin
- School of Medicine, Huaqiao University, Quanzhou 362021, China.
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80
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Yang Y, Zhang J, Chen X, Xu X, Cao G, Li H, Wu T. LncRNA FTX sponges miR-215 and inhibits phosphorylation of vimentin for promoting colorectal cancer progression. Gene Ther 2018; 25:321-330. [PMID: 29925853 DOI: 10.1038/s41434-018-0026-7] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2018] [Revised: 05/23/2018] [Accepted: 05/24/2018] [Indexed: 12/20/2022]
Abstract
Recent researches have reported that long noncoding RNA (lncRNA) five prime to Xist (FTX) plays a crucial role in the initiation and progression of cancers. In the current study, the clinical significance and functional roles of lncRNA FTX in colorectal cancer (CRC) progression were investigated. A significant increase of lncRNA FTX expression in CRC tissue and cell lines was observed. Overexpression of lncRNA FTX was significantly associated with the bigger tumor diameter, the advanced TNM stage, the lymph node, and distant metastasis, and also predicted poor prognosis of patients with CRC. Functional analyses demonstrated that knockdown of lncRNA FTX markedly inhibited CRC cell proliferation, migration, and invasion in vitro. Mechanistically, FTX directly interacted with miR-215 and suppressed miR-215 expression. FTX also bind to vimentin and reduced its phosphorylation level on Ser83 in CRC cells. Finally, using siRNAs against lncRNA FTX could dramatically inhibit CRC growth and distant metastasis in vivo. Taken together, our data demonstrated an oncogenic role of lncRNA FTX in CRC tumorigenesis and progression via interaction with miR-215 and vimentin. Then, a promising therapeutic target for CRC was provided.
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Affiliation(s)
- Yi Yang
- Department of General Surgery, Second Hospital of Xi'an Jiaotong University Xi'an, Shannxi Province, China
| | - Jinpei Zhang
- Department of Encephalopathy, Hospital of Shaanxi University of Chinese Medicine, Shaanxi, China
| | - Xi Chen
- Department of General Surgery, Second Hospital of Xi'an Jiaotong University Xi'an, Shannxi Province, China
| | - Xin Xu
- Department of General Surgery, Second Hospital of Xi'an Jiaotong University Xi'an, Shannxi Province, China
| | - Gang Cao
- Department of General Surgery, Second Hospital of Xi'an Jiaotong University Xi'an, Shannxi Province, China
| | - Hua Li
- Department of General Surgery, Second Hospital of Xi'an Jiaotong University Xi'an, Shannxi Province, China
| | - Tao Wu
- Department of General Surgery, Second Hospital of Xi'an Jiaotong University Xi'an, Shannxi Province, China.
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81
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Gallol LE, Mohamed FH. Immunomorphometric variations of sustentacular cells of the male viscacha adrenal medulla during the annual reproductive cycle. Effects of androgens and melatonin. Acta Histochem 2018; 120:363-372. [PMID: 29628120 DOI: 10.1016/j.acthis.2018.03.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 03/12/2018] [Accepted: 03/29/2018] [Indexed: 12/06/2022]
Abstract
The adrenal medulla is crucial for the survival of species facing significant environmental changes. The parenchyma is composed mainly of chromaffin cells, ganglion cells and sustentacular cells (SC). The male viscacha exhibits seasonal variations of gonadal activity and other metabolic functions. The aim of this work was to investigate the influence of the reproductive conditions on the morphology of SC of this rodent. In addition, the effects of testosterone and melatonin on these cells were studied. Immunoexpression of S100 protein, GFAP and vimentin were analyzed. Furthermore, the distribution of adrenergic and noradrenergic chromaffin cells subpopulations was studied for the first time in this species. SC present long cytoplasmic processes in contact with chromaffin cells, probably generating an intraglandular communication network. Significant differences (p < 0.05) in the %IA (percentage of immunopositive area) for the S100 protein were observed according to winter (4.21 ± 0.34) and summer (3.51 ± 0.15) values. In castrated animals, the %IA (6.05 ± 0.35) was significantly higher in relation to intact animals (3.95 ± 0.40). In melatonin-treated animals the %IA (3.62 ± 0.23) was significantly higher compared to control animals (2.65 ± 0.26). GFAP immunoexpression was negative and no noradrenergic chromaffin cells were detected suggesting an adrenergic phenotype predominance. Vimentin was observed in SC, endothelial cells and connective tissue. Results indicate that SC exhibit variations along the annual reproductive cycle, along with castration and the melatonin administration. Our results suggest that in this rodent SC are not only support elements, but also participate in the modulation of the activity of the adrenal medulla; probably through paracrine effects.
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82
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Yang Y, Yang J, Rao X. What role does superficial vimentin have during DENV-2 infection? Future Virol 2018. [DOI: 10.2217/fvl-2017-0007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Yi Yang
- Department of Microbiology, College of Basic Medical Sciences, Third Military Medical University, Chongqing 400038, People's Republic of China
| | - Jie Yang
- Department of Microbiology, College of Basic Medical Sciences, Third Military Medical University, Chongqing 400038, People's Republic of China
| | - Xiancai Rao
- Department of Microbiology, College of Basic Medical Sciences, Third Military Medical University, Chongqing 400038, People's Republic of China
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83
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Rastogi M, Sarkar S, Makol A, Sandip Singh R, Saikia UN, Banerjee D, Chopra S, Chakraborti A. Anti-endothelial cell antibody rich sera from rheumatic heart disease patients induces proinflammatory phenotype and methylation alteration in endothelial cells. Genes Dis 2018; 5:275-289. [PMID: 30320192 PMCID: PMC6176156 DOI: 10.1016/j.gendis.2018.02.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Accepted: 02/05/2018] [Indexed: 01/06/2023] Open
Abstract
Rheumatic heart disease (RHD) is a major cause of cardiovascular morbidity and mortality in developing nations like India. RHD commonly affects the mitral valve which is lined by a single layer of endothelial cells (ECs). The role of ECs in mitral valve damage during RHD is not well elucidated. In here, anti-endothelial cell antibody from RHD patients has been used to stimulate the ECs (HUVECs and HMVECs). ECs proinflammatory phenotype with increased expression of TNFα, IL-6, IL-8, IFNγ, IL-1β, ICAM1, VCAM1, E-selectin, laminin B, and vimentin was documented in both ECs. The promoter hypomethylation of various key inflammatory cytokines (TNFα, IL-6, and IL-8), integrin (ICAM1) associated with leukocyte transendothelial migration, and extracellular matrix genes (vimentin, and laminin) were also observed. Further, the in-vitro data was in accordance with ex-vivo observations which correlated significantly with the etiological factors such as smoking, socioeconomic status, and housing. Thus, the study sheds light on the role of ECs in RHD which is a step forward in the elucidation of disease pathogenesis.
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Affiliation(s)
- Mukul Rastogi
- Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Subendu Sarkar
- Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Ankita Makol
- Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Rana Sandip Singh
- Department of Cardiothoracic and Vascular Surgery, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Uma Nahar Saikia
- Department of Histopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Dibyajyoti Banerjee
- Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Seema Chopra
- Department of Obstetrics and Gynaecology, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
| | - Anuradha Chakraborti
- Department of Experimental Medicine and Biotechnology, Postgraduate Institute of Medical Education and Research, Chandigarh, 160012, India
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Wang J, Cai H, Xia Y, Wang S, Xing L, Chen C, Zhang Y, Xu J, Yin P, Jiang Y, Zhao R, Zuo Q, Chen T. Bufalin inhibits gastric cancer invasion and metastasis by down-regulating Wnt/ASCL2 expression. Oncotarget 2018; 9:23320-23333. [PMID: 29805736 PMCID: PMC5955089 DOI: 10.18632/oncotarget.24157] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Accepted: 01/02/2018] [Indexed: 12/15/2022] Open
Abstract
Achaete-scute-like 2 (ASCL2) is a transcription factor containing a basic helix-loop-helix (bHLH) domain and is a downstream target of Wnt signaling in intestinal stem cells. Bufalin is the primary active ingredient in Chan Su, a traditional Chinese medicine obtained from the skin and parotid venom glands of toads. The purpose of this study was to research the anti-invasion and anti-metastasis activity of bufalin in gastric cancer and to identify the potential mechanism. Bufalin inhibited gastric cancer cell invasion and metastasis, suppressed cancer cell colony formation, and inhibited the growth of subcutaneous xenografted tumors in nude mice. Furthermore, bufalin inhibited ASCL2 expression and down-regulated the expression of invasion-related genes such as MMP2, MMP9, and vimentin, thereby suppressing epithelial-mesenchymal transition (EMT) in gastric cancer. A Wnt signaling inhibitor (XAV939) down-regulated invasion and the expression of ASCL2, β-catenin, and vimentin but up-regulated E-cadherin expression. In nude mice, bufalin inhibited the tumorigenic behavior of gastric cancer cells, induced cancer cell apoptosis, and regulated invasion-related gene expression. Together, our results suggest that bufalin arrests invasion and metastasis and that its mechanism of action may involve down-regulating Wnt/ASCL2 expression.
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Affiliation(s)
- Jie Wang
- Department of General Surgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - Han Cai
- Department of General Surgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - Yue Xia
- Department of General Surgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - Shiying Wang
- Department of Gastroenterology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Likai Xing
- Department of General Surgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - Chao Chen
- Department of General Surgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - Yong Zhang
- Department of General Surgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - Jie Xu
- Department of General Surgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - Peihao Yin
- Department of General Surgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - Yiming Jiang
- Department of General Surgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - Ronghua Zhao
- Department of Medical, Virogin Biotech Ltd., Vancouver, British Columbia V6S 2L9, Canada
| | - Qingshong Zuo
- Department of General Surgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China
| | - Teng Chen
- Department of General Surgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200062, China.,Shanghai Putuo Central School of Clinical Medicine, Anhui Medical University, Shanghai 200062, China
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Wang J, Li Q, Kong Y, Zhou F, Li J, Li W, Wang K, Wu T, Guan Y, Xie J, Wen T. Biosystems Study of the Molecular Networks Underlying Hippocampal Aging Progression and Anti-aging Treatment in Mice. Front Aging Neurosci 2018; 9:393. [PMID: 29311893 PMCID: PMC5735351 DOI: 10.3389/fnagi.2017.00393] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 11/13/2017] [Indexed: 12/22/2022] Open
Abstract
Aging progression is a process that an individual encounters as they become older, and usually results from a series of normal physiological changes over time. The hippocampus, which contributes to the loss of spatial and episodic memory and learning in older people, is closely related to the detrimental effects of aging at the morphological and molecular levels. However, age-related genetic changes in hippocampal molecular mechanisms are not yet well-established. To provide additional insight into the aging process, differentially-expressed genes of 3- versus 24- and 29-month old mice were re-analyzed. The results revealed that a large number of immune and inflammatory response-related genes were up-regulated in the aged hippocampus, and membrane receptor-associated genes were down-regulated. The down-regulation of transmembrane receptors may indicate the weaker perception of environmental exposure in older people, since many transmembrane proteins participate in signal transduction. In addition, molecular interaction analysis of the up-regulated immune genes indicated that the hub gene, Ywhae, may play essential roles in immune and inflammatory responses during aging progression, as well as during hippocampal development. Our biological experiments confirmed the conserved roles of Ywhae and its partners between human and mouse. Furthermore, comparison of microarray data between advanced-age mice treated with human umbilical cord blood plasma protein and the phosphate-buffered saline control showed that the genes that contribute to the revitalization of advanced-age mice are different from the genes induced by aging. These results implied that the revitalization of advanced-age mice is not a simple reverse process of normal aging progression. Our data assigned novel roles of genes during aging progression and provided further theoretic evidence for future studies exploring the underlying mechanisms of aging and anti-aging-related disease therapy.
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Affiliation(s)
- Jiao Wang
- Laboratory of Molecular Neural Biology, School of Life Sciences, Shanghai University, Shanghai, China
| | - Qian Li
- Laboratory of Molecular Neural Biology, School of Life Sciences, Shanghai University, Shanghai, China
| | - Yanyan Kong
- Position Emission Computed Tomography Center, Huashan Hospital, Fudan University, Shanghai, China
| | - Fangfang Zhou
- Laboratory of Molecular Neural Biology, School of Life Sciences, Shanghai University, Shanghai, China
| | - Jie Li
- Laboratory of Molecular Neural Biology, School of Life Sciences, Shanghai University, Shanghai, China
| | - Weihao Li
- Laboratory of Molecular Neural Biology, School of Life Sciences, Shanghai University, Shanghai, China
| | - Kai Wang
- Shanghai Key Laboratory of Molecular Andrology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Ting Wu
- Shanghai Stem Cell Group, Shanghai, China
| | - Yihui Guan
- Position Emission Computed Tomography Center, Huashan Hospital, Fudan University, Shanghai, China
| | - Jiang Xie
- School of Computer Engineering and Science, Shanghai University, Shanghai, China
| | - Tieqiao Wen
- Laboratory of Molecular Neural Biology, School of Life Sciences, Shanghai University, Shanghai, China
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86
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Long noncoding RNA LINC00675 enhances phosphorylation of vimentin on Ser83 to suppress gastric cancer progression. Cancer Lett 2018; 412:179-187. [DOI: 10.1016/j.canlet.2017.10.026] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2017] [Revised: 10/18/2017] [Accepted: 10/19/2017] [Indexed: 01/04/2023]
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87
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Pinchuk IV, Powell DW. Immunosuppression by Intestinal Stromal Cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1060:115-129. [DOI: 10.1007/978-3-319-78127-3_7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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88
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Duran CL, Howell DW, Dave JM, Smith RL, Torrie ME, Essner JJ, Bayless KJ. Molecular Regulation of Sprouting Angiogenesis. Compr Physiol 2017; 8:153-235. [PMID: 29357127 DOI: 10.1002/cphy.c160048] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The term angiogenesis arose in the 18th century. Several studies over the next 100 years laid the groundwork for initial studies performed by the Folkman laboratory, which were at first met with some opposition. Once overcome, the angiogenesis field has flourished due to studies on tumor angiogenesis and various developmental models that can be genetically manipulated, including mice and zebrafish. In addition, new discoveries have been aided by the ability to isolate primary endothelial cells, which has allowed dissection of various steps within angiogenesis. This review will summarize the molecular events that control angiogenesis downstream of biochemical factors such as growth factors, cytokines, chemokines, hypoxia-inducible factors (HIFs), and lipids. These and other stimuli have been linked to regulation of junctional molecules and cell surface receptors. In addition, the contribution of cytoskeletal elements and regulatory proteins has revealed an intricate role for mobilization of actin, microtubules, and intermediate filaments in response to cues that activate the endothelium. Activating stimuli also affect various focal adhesion proteins, scaffold proteins, intracellular kinases, and second messengers. Finally, metalloproteinases, which facilitate matrix degradation and the formation of new blood vessels, are discussed, along with our knowledge of crosstalk between the various subclasses of these molecules throughout the text. Compr Physiol 8:153-235, 2018.
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Affiliation(s)
- Camille L Duran
- Department of Molecular and Cellular Medicine, Texas A&M Health Science Center, College Station, Texas, USA
| | - David W Howell
- Department of Molecular and Cellular Medicine, Texas A&M Health Science Center, College Station, Texas, USA
| | - Jui M Dave
- Department of Molecular and Cellular Medicine, Texas A&M Health Science Center, College Station, Texas, USA
| | - Rebecca L Smith
- Department of Molecular and Cellular Medicine, Texas A&M Health Science Center, College Station, Texas, USA
| | - Melanie E Torrie
- Department of Genetics, Development and Cell Biology, Iowa State University, Ames, Iowa, USA
| | - Jeffrey J Essner
- Department of Genetics, Development and Cell Biology, Iowa State University, Ames, Iowa, USA
| | - Kayla J Bayless
- Department of Molecular and Cellular Medicine, Texas A&M Health Science Center, College Station, Texas, USA
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89
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Derler R, Gesslbauer B, Weber C, Strutzmann E, Miller I, Kungl A. Glycosaminoglycan-Mediated Downstream Signaling of CXCL8 Binding to Endothelial Cells. Int J Mol Sci 2017; 18:ijms18122605. [PMID: 29207576 PMCID: PMC5751208 DOI: 10.3390/ijms18122605] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Revised: 11/24/2017] [Accepted: 11/29/2017] [Indexed: 01/13/2023] Open
Abstract
The recruitment of leukocytes, mediated by endothelium bound chemokine gradients, is a vital process in inflammation. The highly negatively charged, unbranched polysaccharide family of glycosaminoglycans (GAGs), such as heparan sulfate and chondroitin sulfate mediate chemokine immobilization. Specifically the binding of CXCL8 (interleukin 8) to GAGs on endothelial cell surfaces is known to regulate neutrophil recruitment. Currently, it is not clear if binding of CXCL8 to GAGs leads to endothelial downstream signaling in addition to the typical CXCR1/CXCR2 (C-X-C motif chemokine receptor 1 and 2)-mediated signaling which activates neutrophils. Here we have investigated the changes in protein expression of human microvascular endothelial cells induced by CXCL8. Tumor necrosis factor alpha (TNFα) stimulation was used to mimic an inflammatory state which allowed us to identify syndecan-4 (SDC4) as the potential proteoglycan co-receptor of CXCL8 by gene array, real-time PCR and flow cytometry experiments. Enzymatic GAG depolymerization via heparinase III and chondroitinase ABC was used to emulate the effect of glycocalyx remodeling on CXCL8-induced endothelial downstream signaling. Proteomic analyses showed changes in the expression pattern of a number of endothelial proteins such as Zyxin and Caldesmon involved in cytoskeletal organization, cell adhesion and cell mobility. These results demonstrate for the first time a potential role of GAG-mediated endothelial downstream signaling in addition to the well-known CXCL8-CXCR1/CXCR2 signaling pathways in neutrophils.
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Affiliation(s)
- Rupert Derler
- Antagonis Biotherapeutics GmbH, Strasserhofweg 77a, 8045 Graz, Austria.
- Department of Pharmaceutical Chemistry, Institute of Pharmaceutical Sciences, University of Graz, Schubertstrasse 1, 8010 Graz, Austria.
| | - Bernd Gesslbauer
- Department of Pharmaceutical Chemistry, Institute of Pharmaceutical Sciences, University of Graz, Schubertstrasse 1, 8010 Graz, Austria.
| | - Corinna Weber
- Department of Pharmaceutical Chemistry, Institute of Pharmaceutical Sciences, University of Graz, Schubertstrasse 1, 8010 Graz, Austria.
| | - Elisabeth Strutzmann
- Department of Pharmaceutical Chemistry, Institute of Pharmaceutical Sciences, University of Graz, Schubertstrasse 1, 8010 Graz, Austria.
| | - Ingrid Miller
- Institute for Medical Biochemistry, University of Veterinary Medicine, Veterinärplatz 1, 1210 Vienna, Austria.
| | - Andreas Kungl
- Antagonis Biotherapeutics GmbH, Strasserhofweg 77a, 8045 Graz, Austria.
- Department of Pharmaceutical Chemistry, Institute of Pharmaceutical Sciences, University of Graz, Schubertstrasse 1, 8010 Graz, Austria.
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90
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Liu L, Liu W, Wang L, Zhu T, Zhong J, Xie N. Hypoxia-inducible factor 1 mediates intermittent hypoxia-induced migration of human breast cancer MDA-MB-231 cells. Oncol Lett 2017; 14:7715-7722. [PMID: 29250173 PMCID: PMC5727604 DOI: 10.3892/ol.2017.7223] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 07/07/2017] [Indexed: 02/05/2023] Open
Abstract
Metastasis is the major cause of triple-negative breast cancer (TNBC)-associated mortality. Hypoxia promotes cancer cell migration and remote metastasis, which occur with hypoxia inducible factor 1α (HIF-1α) stabilization and vimentin upregulation. However, the evolutionary dynamics that link the changes in HIF-1α and vimentin levels under hypoxic conditions are not well understood. In the present study, the effects of intermittent hypoxia (IH), continuous hypoxia (CH) and normoxia on the migration and proliferation of human TNBC MDA-MB-231 cells were investigated. The results demonstrated that IH significantly increased the migration of MDA-MB-231 cells, and this effect was dependent on the number of cycles of hypoxia-reoxygenation. Unexpectedly, IH significantly inhibited cell proliferation, while CH only caused such an effect if hypoxia extended for ≥3 days. IH and CH induced HIF-1α protein accumulation and vimentin upregulation, with a greater effect observed in IH. Knockdown of HIF-1α with siRNA abolished IH-induced cell migration and vimentin upregulation. In summary, multiple cycles of hypoxia and reoxygenation have a more pronounced effect on the promotion of TNBC invasiveness than CH; HIF-1α activation and downstream vimentin upregulation may account for this phenotypic change.
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Affiliation(s)
- Litao Liu
- The Central Laboratory, Shenzhen Second People's Hospital, Shenzhen University First Affiliated Hospital, Shenzhen, Guangdong 518035, P.R. China
- Institute of Translation Medicine, Shenzhen Second People's Hospital, Shenzhen University First Affiliated Hospital, Shenzhen, Guangdong 518035, P.R. China
| | - Wenlan Liu
- The Central Laboratory, Shenzhen Second People's Hospital, Shenzhen University First Affiliated Hospital, Shenzhen, Guangdong 518035, P.R. China
| | - Lili Wang
- The Central Laboratory, Shenzhen Second People's Hospital, Shenzhen University First Affiliated Hospital, Shenzhen, Guangdong 518035, P.R. China
- Graduate School, Guangdong Medical College, Dongguan, Guangdong 523808, P.R. China
| | - Ting Zhu
- The Central Laboratory, Shenzhen Second People's Hospital, Shenzhen University First Affiliated Hospital, Shenzhen, Guangdong 518035, P.R. China
- Graduate School, Guangzhou Medical University, Guangzhou, Guangdong 511436, P.R. China
| | - Jianhua Zhong
- The Central Laboratory, Shenzhen Second People's Hospital, Shenzhen University First Affiliated Hospital, Shenzhen, Guangdong 518035, P.R. China
- Graduate School, Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
| | - Ni Xie
- The Central Laboratory, Shenzhen Second People's Hospital, Shenzhen University First Affiliated Hospital, Shenzhen, Guangdong 518035, P.R. China
- Institute of Translation Medicine, Shenzhen Second People's Hospital, Shenzhen University First Affiliated Hospital, Shenzhen, Guangdong 518035, P.R. China
- Correspondence to: Dr Ni Xie, Institute of Translation Medicine, Shenzhen Second People's Hospital, Shenzhen University First Affiliated Hospital, Shenzhen, Guangdong 518035, P.R. China, E-mail:
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91
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Barata D, Provaggi E, van Blitterswijk C, Habibovic P. Development of a microfluidic platform integrating high-resolution microstructured biomaterials to study cell-material interactions. LAB ON A CHIP 2017; 17:4134-4147. [PMID: 29114689 DOI: 10.1039/c7lc00802c] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Microfluidic screening platforms offer new possibilities for performing in vitro cell-based assays with higher throughput and in a setting that has the potential to closely mimic the physiological microenvironment. Integrating functional biomaterials into such platforms is a promising approach to obtain a deeper insight into the interactions occurring at the cell-material interface. The success of such an approach is, however, largely dependent on the ability to miniaturize the biomaterials as well as on the choice of the assay used to study the cell-material interactions. In this work, we developed a microfluidic device, the main component of which is made of a widely used biocompatible polymer, polylactic acid (PLA). This device enabled cell culture under different fluidic regimes, including perfusion and diffusion. Through a combination of photolithography, two-photon polymerization and hot embossing, it was possible to microstructure the surface of the cell culture chamber of the device with highly defined geometrical features. Furthermore, using pyramids with different heights and wall microtopographies as an example, adhesion, morphology and distribution of human MG63 osteosarcoma cells were studied. The results showed that both the height of the topographical features and the microstructural properties of their walls affected cell spreading and distribution. This proof-of-concept study shows that the platform developed here is a useful tool for studying interactions between cells and clinically relevant biomaterials under controlled fluidic regimes.
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Affiliation(s)
- D Barata
- Department of Tissue Regeneration, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, Enschede, Overijssel, The Netherlands
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92
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Li L, Wang X, Sharvan R, Gao J, Qu S. Berberine could inhibit thyroid carcinoma cells by inducing mitochondrial apoptosis, G0/G1 cell cycle arrest and suppressing migration via PI3K-AKT and MAPK signaling pathways. Biomed Pharmacother 2017; 95:1225-1231. [DOI: 10.1016/j.biopha.2017.09.010] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2017] [Revised: 08/30/2017] [Accepted: 09/04/2017] [Indexed: 01/08/2023] Open
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93
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Zhang GH, Yu FC, Li Y, Wei Q, Song SS, Zhou FP, Tong JY. Prolyl 4-Hydroxylase Domain Protein 3 Overexpression Improved Obstructive Sleep Apnea-Induced Cardiac Perivascular Fibrosis Partially by Suppressing Endothelial-to-Mesenchymal Transition. J Am Heart Assoc 2017; 6:e006680. [PMID: 29051216 PMCID: PMC5721870 DOI: 10.1161/jaha.117.006680] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Accepted: 09/15/2017] [Indexed: 01/19/2023]
Abstract
BACKGROUND Intermittent hypoxia (IH) induced by obstructive sleep apnea is the key factor involved in cardiovascular fibrosis. Under persistent hypoxia condition, endothelial cells respond by endothelial-to-mesenchymal transition (EndMT), which is associated with cardiovascular fibrosis. Prolyl 4-hydroxylase domain protein 3 (PHD3) is a cellular oxygen sensor and its expression increased in hypoxia. However, its role in obstructive sleep apnea-induced EndMT and cardiovascular fibrosis is still uncertain. We investigated the potential mechanism of obstructive sleep apnea-induced cardiac perivascular fibrosis and the role of PHD3 in it. METHODS AND RESULTS In vivo, C56BL/6 mice were exposed to IH for 12 weeks. PHD3 expression was changed by lentivirus-mediated short-hairpin PHD3 and lentivirus carrying PHD3 cDNA. EndMT related protein levels, histological and functional parameters were detected after 12 weeks. In vitro, human umbilical vein endothelial cells were treated with IH/short-hairpin PHD3/lentivirus carrying PHD3 cDNA to explore the mechanism of PHD3 in altered function of human umbilical vein endothelial cells. We found that chronic intermittent hypoxia increase PHD3 expression and EndMT. In vivo, IH accelerate cardiac dysfunction and aggravate collagen deposition via the process of EndMT. And, when PHD3 were overexpressed, cardiac dysfunction and collagen excessive deposition were improved. In vitro, IH induced EndMT, which endow human umbilical vein endothelial cells spindle morphology and an enhanced ability to migration and collagen secretion. PHD3 overexpression in cultured human umbilical vein endothelial cells ameliorated IH-induced EndMT through inactivating hypoxia-inducible factor 1 alpha and small mothers against decapentaplegic 2 and 3. CONCLUSIONS Obstructive sleep apnea-induced cardiac perivascular fibrosis is associated with EndMT, and PHD3 overexpression might be beneficial in the prevention of it by inhibiting EndMT. PHD3 overexpression might have therapeutic potential in the treatment of the disease.
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Affiliation(s)
- Guang-Hao Zhang
- Southeast University, Nanjing, Jiangsu, China
- Department of Cardiology, Zhongda Hospital Affiliated to Southeast University, Nanjing, Jiangsu, China
| | - Fu-Chao Yu
- Southeast University, Nanjing, Jiangsu, China
- Department of Cardiology, Zhongda Hospital Affiliated to Southeast University, Nanjing, Jiangsu, China
| | - Yang Li
- Department of Cardiology, Zhongda Hospital Affiliated to Southeast University, Nanjing, Jiangsu, China
| | - Qin Wei
- Department of Cardiology, Zhongda Hospital Affiliated to Southeast University, Nanjing, Jiangsu, China
| | - Song-Song Song
- Department of Cardiology, Zhongda Hospital Affiliated to Southeast University, Nanjing, Jiangsu, China
| | - Fang-Ping Zhou
- Department of Cardiology, Zhongda Hospital Affiliated to Southeast University, Nanjing, Jiangsu, China
| | - Jia-Yi Tong
- Southeast University, Nanjing, Jiangsu, China
- Department of Cardiology, Zhongda Hospital Affiliated to Southeast University, Nanjing, Jiangsu, China
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94
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Zhang YJ, Wen CL, Qin YX, Tang XM, Shi MM, Shen BY, Fang Y. Establishment of a human primary pancreatic cancer mouse model to examine and investigate gemcitabine resistance. Oncol Rep 2017; 38:3335-3346. [PMID: 29039610 PMCID: PMC5783578 DOI: 10.3892/or.2017.6026] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 09/27/2017] [Indexed: 01/13/2023] Open
Abstract
Pancreatic cancer is one of the most fatal types of cancer and is associated with a dismal prognosis. Gemcitabine-based chemotherapy is clinically used for the treatment of advanced pancreatic cancer. However, many forms of pancreatic cancer have acquired resistance to gemcitabine. In order to prevent patients from suffering from the side effects of chemotherapy and to have the chance to receive more effective intervention, assessment of whether the patient pancreatic cancer cells are resistant to gemcitabine before clinical practice is crucial. Recently, patient-derived xenograft (PDX) models have been regarded as a practical approach for preclinical drug resistance test. In the present study, we harvested tumor specimens from 28 pancreatic cancer patients to establish PDX models. The tumor formation rate of the xenografts was 100%, several of which could be re-implanted in nude mice for more than 10 passages. Primary cells were further obtained from the PDX xenografts to determine their morphological features and evaluate their proliferation rate, migration capacity and angiopoietic ability. In addition, the sensitivities of the primary cells and PDX xenografts to gemcitabine were correlated with each other. When compared to the gemcitabine-sensitive cells, the gemcitabine-resistant cells had a higher level of MCF2L expression, suggesting that MCF2L plays an important role in gemcitabine resistance.
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Affiliation(s)
- Ya-Jing Zhang
- Department of Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
| | - Chen-Lei Wen
- Department of Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
| | - Yu-Xin Qin
- WuXi AppTec Co., Ltd., Shanghai 200131, P.R. China
| | - Xiao-Mei Tang
- Department of Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
| | - Min-Min Shi
- Department of Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
| | - Bai-Yong Shen
- Department of Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
| | - Yuan Fang
- Department of Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
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95
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Cheng F, Eriksson JE. Intermediate Filaments and the Regulation of Cell Motility during Regeneration and Wound Healing. Cold Spring Harb Perspect Biol 2017; 9:9/9/a022046. [PMID: 28864602 DOI: 10.1101/cshperspect.a022046] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
SUMMARYIntermediate filaments (IFs) comprise a diverse group of flexible cytoskeletal structures, the assembly, dynamics, and functions of which are regulated by posttranslational modifications. Characteristically, the expression of IF proteins is specific for tissues, differentiation stages, cell types, and functional contexts. Recent research has rapidly expanded the knowledge of IF protein functions. From being regarded as primarily structural proteins, it is now well established that IFs act as powerful modulators of cell motility and migration, playing crucial roles in wound healing and tissue regeneration, as well as inflammatory and immune responses. Although many of these IF-associated functions are essential for tissue repair, the involvement of IF proteins has been established in many additional facets of tissue healing and regeneration. Here, we review the recent progress in understanding the multiple functions of cytoplasmic IFs that relate to cell motility in the context of wound healing, taking examples from studies on keratin, vimentin, and nestin. Wound healing and regeneration include orchestration of a broad range of cellular processes, including regulation of cell attachment and migration, proliferation, differentiation, immune responses, angiogenesis, and remodeling of the extracellular matrix. In this respect, IF proteins now emerge as multifactorial and tissue-specific integrators of tissue regeneration, thereby acting as essential guardian biopolymers at the interface between health and disease, the failing of which contributes to a diverse range of pathologies.
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Affiliation(s)
- Fang Cheng
- Cell Biology, Faculty of Science and Engineering, Åbo Akademi University, FI-20520 Turku, Finland.,Turku Centre for Biotechnology, Åbo Akademi University and University of Turku, FI-20520, Turku, Finland
| | - John E Eriksson
- Cell Biology, Faculty of Science and Engineering, Åbo Akademi University, FI-20520 Turku, Finland.,Turku Centre for Biotechnology, Åbo Akademi University and University of Turku, FI-20520, Turku, Finland
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96
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Lei X, Liang Y, Chen J, Xiao S, Lei J, Li J, Duanmu J, Jiang Q, Liu D, Tang C, Li T. Sorcin Predicts Poor Prognosis and Promotes Metastasis by Facilitating Epithelial-mesenchymal Transition in Hepatocellular Carcinoma. Sci Rep 2017; 7:10049. [PMID: 28855589 PMCID: PMC5577205 DOI: 10.1038/s41598-017-10365-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Accepted: 08/09/2017] [Indexed: 01/27/2023] Open
Abstract
Metastasis-associated recurrence is the main cause for the poor prognosis of hepatocellular carcinoma (HCC). However, the detailed molecular mechanisms underlying HCC metastasis remain elusive. Though some data indicated the oncogenic role of Sorcin in tumors, the prognostic value and biological role of Sorcin in HCC is still unknown. In this study, it demonstrated that Sorcin expression levels were significantly upregulated in HCC tumor tissues compared with matched adjacent nontumorous liver tissues and normal liver tissues, and such expression level correlated with HCC metastasis. High Sorcin expression was significantly correlated with aggressive clinicopathological characteristics such as multiple tumor nodules, high Edmondson-Steiner grade, microvascular invasion, advanced TNM stage and advanced BCLC stage (all P < 0.05). HCC patients with high Sorcin expression had both shorter survival and higher recurrence than those with low Sorcin expression (all P < 0.05). Sorcin expression was an independent and significant risk factor for survival and recurrence of HCC patients. Results of functional experiments showed that Sorcin could promote HCC cell proliferation, migration, and invasion in vitro, and facilitate HCC growth and metastasis in vivo. Mechanistically, Sorcin exerted its role by activating extracellular signal-regulated kinase (ERK) pathway and promoted metastasis by facilitating epithelial-mesenchymal transition (EMT) in HCC.
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Affiliation(s)
- Xiong Lei
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Yahang Liang
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Jian Chen
- Department of Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510080, China
| | - Shuai Xiao
- Liver Cancer Laboratory, Department of Surgery, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Jian Lei
- Department of Pathology, Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, Hunan, China
| | - Jianfeng Li
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Jinzhong Duanmu
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Qunguang Jiang
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Dongning Liu
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Cheng Tang
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, China
| | - Taiyuan Li
- Department of General Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, China.
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97
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Mary S, Kulkarni MJ, Mehendale SS, Joshi SR, Giri AP. Differential accumulation of vimentin fragments in preeclamptic placenta. Cytoskeleton (Hoboken) 2017; 74:420-425. [PMID: 28752964 DOI: 10.1002/cm.21390] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 06/02/2017] [Accepted: 07/26/2017] [Indexed: 12/20/2022]
Abstract
Preeclampsia is a pregnancy complication that is the result of abnormal placentation because of inadequate trophoblast invasion into spiral arteries that prevent normal blood flow to the placenta. We report the alteration in vimentin protein proteolysis in placenta of normotensive and preeclamptic women, which is known to have a role in many physiological functions other than its major function in the structural integrity of the cell. Placental proteome from normotensive (n = 25) and preeclamptic pregnancies (n = 25) showed eight differentially accumulated protein spots of vimentin (proteolytic fragments) by two-dimensional electrophoresis. Immunoblots of normotensive and preeclamptic placenta revealed a difference in proteolytic processing of vimentin. In particular, lower molecular weight vimentin fragments of 32 and 20 kDa were 3.3 and 2.6-fold (p < 0.0001) higher, respectively, in preeclampsia compared with normotensive placenta.
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Affiliation(s)
- Sheon Mary
- Division of Biochemical Sciences, CSIR-National Chemical Laboratory, Pune, Maharashtra, 411008, India
| | - Mahesh J Kulkarni
- Division of Biochemical Sciences, CSIR-National Chemical Laboratory, Pune, Maharashtra, 411008, India
| | - Savita S Mehendale
- Department of Gynecology, Bharati Vidyapeeth Medical College, Pune, Maharashtra, 411043, India
| | - Sadhana R Joshi
- Department of Nutritional Medicine, Interactive Research School for Health Affairs, Bharati Vidyapeeth University, Pune, Maharashtra, 411043, India
| | - Ashok P Giri
- Division of Biochemical Sciences, CSIR-National Chemical Laboratory, Pune, Maharashtra, 411008, India
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Tunçer S, Keşküş AG, Çolakoğlu M, Çimen I, Yener C, Konu Ö, Banerjee S. 15-Lipoxygenase-1 re-expression in colorectal cancer alters endothelial cell features through enhanced expression of TSP-1 and ICAM-1. Cell Signal 2017; 39:44-54. [PMID: 28757355 DOI: 10.1016/j.cellsig.2017.07.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 07/26/2017] [Indexed: 02/07/2023]
Abstract
15-lipoxygenase-1 (15-LOX-1) oxygenates linoleic acid to 13(S)-hydroxyoctadecadienoic acid (HODE). The enzyme is widely suppressed in different cancers and its re-expression has tumor suppressive effects. 15-LOX-1 has been shown to inhibit neoangiogenesis in colorectal cancer (CRC); in the present study we confirm this phenomenon and describe the mechanistic basis. We show that re-expression of 15-LOX-1 in CRC cell lines resulted in decreased transcriptional activity of HIF1α and reduced the expression and secretion of VEGF in both normoxic and hypoxic conditions. Conditioned medium (CM) was obtained from CRC or prostate cancer cell lines re-expressing 15-LOX-1 (15-LOX-1CM). 15-LOX-1CM treated aortic rings from 6-week old C57BL/6 mice showed significantly less vessel sprouting and more organized structure of vascular network. Human umbilical vein endothelial cells (HUVECs) incubated with 15-LOX-1CM showed reduced motility, enhanced expression of intercellular cell adhesion molecule (ICAM-1) and reduced tube formation but no change in proliferation or cell-cycle distribution. HUVECs incubated with 13(S)-HODE partially phenocopied the effects of 15-LOX-1CM, i.e., showed reduced motility and enhanced expression of ICAM-1, but did not reduce tube formation, implying the importance of additional factors. Therefore, a Proteome Profiler Angiogenesis Array was carried out, which showed that Thrombospondin-1 (TSP-1), a matrix glycoprotein known to strongly inhibit neovascularization, was expressed significantly more in HUVECs incubated with 15-LOX-1CM. TSP-1 blockage in HUVECs reduced the expression of ICAM-1 and enhanced cell motility, thereby providing a mechanism for reduced angiogenesis. The anti-angiogenic effects of 15-LOX-1 through enhanced expressions of ICAM-1 and TSP-1 are novel findings and should be explored further to develop therapeutic options.
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Affiliation(s)
- Sinem Tunçer
- Department of Biological Sciences, Orta Dogu Teknik Universitesi (ODTU/METU), Ankara 06800, Turkey
| | - Ayşe Gökçe Keşküş
- Department of Molecular Biology and Genetics, Bilkent Universitesi, Ankara 06800, Turkey
| | - Melis Çolakoğlu
- Department of Biological Sciences, Orta Dogu Teknik Universitesi (ODTU/METU), Ankara 06800, Turkey
| | - Ismail Çimen
- Department of Biological Sciences, Orta Dogu Teknik Universitesi (ODTU/METU), Ankara 06800, Turkey
| | - Caner Yener
- Department of Biological Sciences, Orta Dogu Teknik Universitesi (ODTU/METU), Ankara 06800, Turkey
| | - Özlen Konu
- Department of Molecular Biology and Genetics, Bilkent Universitesi, Ankara 06800, Turkey
| | - Sreeparna Banerjee
- Department of Biological Sciences, Orta Dogu Teknik Universitesi (ODTU/METU), Ankara 06800, Turkey.
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99
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Barata D, Dias P, Wieringa P, van Blitterswijk C, Habibovic P. Cell-instructive high-resolution micropatterned polylactic acid surfaces. Biofabrication 2017; 9:035004. [PMID: 28671108 DOI: 10.1088/1758-5090/aa7d24] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Micro and nanoscale topographical structuring of biomaterial surfaces has been a valuable tool for influencing cell behavior, including cell attachment, proliferation and differentiation. However, most fabrication techniques for surface patterning of implantable biomaterials suffer from a limited resolution, not allowing controlled generation of sub-cellular three-dimensional features. Here, a direct laser lithography technique based on two-photon absorption was used to construct several patterns varying in size between 500 nm and 15 μm. Through replication via an intermediate mold, the patterns were transferred into polylactic acid (PLA), a widely used biomedical polymer, while retaining the original geometry. An osteoblast-like cell line, MG-63 was used for characterizing the morphological response to the topographical patterns. The results indicated that semi-continuous (dashed) lines, with a height of 1 μm were able to induce cell elongation in the direction of the lines. However, when dashes with a height of 0.5 μm were combined with perpendicularly crossing continuous lines (rails) with a height of 8 μm, the contact guidance effect of the dashes was lost and elongation of the cells was observed in the direction of the larger features. A second pattern, consisting of different arrays of pillars showed that, depending on the pillar height, the cells were either able to spread over the pattern or were confined between the pattern features. These differences in the ability of cells to spread further resulted in the formation of tension forces through stress fibers and displacement of vimentin. The method for high-resolution micropatterning of PLA as presented here can also be applied to other biomedical polymers, making it useful both for fundamental studies and for designing new biomaterials with improved functionality.
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Affiliation(s)
- David Barata
- Department of Tissue Regeneration, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, Enschede, Overijssel, Netherlands. Department of Instructive Biomaterials Engineering, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, Limburg, Netherlands
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100
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Jørgensen ML, Møller CK, Rasmussen L, Boisen L, Pedersen H, Kristensen P. An anti vimentin antibody promotes tube formation. Sci Rep 2017; 7:3576. [PMID: 28620205 PMCID: PMC5472577 DOI: 10.1038/s41598-017-03799-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 04/18/2017] [Indexed: 12/02/2022] Open
Abstract
In recent years, there has been an increasing appreciation of the importance of secreted and extracellular proteins that traditionally have been considered as intracellular components. Vimentin is a highly abundant intermediate filament protein, and its intracellular functions have been investigated in a large number of studies. Recently, however, vimentin has been shown to take part in significant processes outside the cell. Our understanding of the functions of extracellular vimentin is, however, limited. In this study we demonstrate that a vimentin specific antibody, obtained by phage antibody technology, promotes tube formation of endothelial cells in a 2D matrigel assay. By binding vimentin, the antibody increases the tube formation by 21% after 5 hours of incubation. Addition of the antibody directly to cultured endothelial cells does not influence endothelial cell migration or proliferation. The enhanced tube formation can be seen for up to 10 hours where after the effect decreases. It is shown that the antibody-binding site is located on the coil 2 domain of vimentin. To our knowledge this is the first study that demonstrates an enhanced tube formation by binding vimentin in a 2D matrigel assay under normoxic conditions.
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Affiliation(s)
| | - Carina Kjeldahl Møller
- Department of Molecular biology, Gustav Wieds Vej 10, Aarhus University, 8000, Aarhus C, Denmark
| | - Lasse Rasmussen
- Department of Molecular biology, Gustav Wieds Vej 10, Aarhus University, 8000, Aarhus C, Denmark
| | - Louise Boisen
- Department of Molecular biology, Gustav Wieds Vej 10, Aarhus University, 8000, Aarhus C, Denmark
| | - Henrik Pedersen
- Department of Engineering, Gustav Wieds Vej 10, Aarhus University, 8000, Aarhus C, Denmark
| | - Peter Kristensen
- Department of Engineering, Gustav Wieds Vej 10, Aarhus University, 8000, Aarhus C, Denmark.
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