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Ahmetaj-Shala B, Vaja R, Atanur SS, George PM, Kirkby NS, Mitchell JA. Cardiorenal Tissues Express SARS-CoV-2 Entry Genes and Basigin (BSG/CD147) Increases With Age in Endothelial Cells. JACC Basic Transl Sci 2020; 5:1111-1123. [PMID: 33073064 PMCID: PMC7546186 DOI: 10.1016/j.jacbts.2020.09.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 09/17/2020] [Accepted: 09/17/2020] [Indexed: 02/07/2023]
Abstract
Vascular and cardiovascular inflammation and thrombosis occur in patients with severe coronavirus disease-2019 (COVID-19). Advancing age is the most significant risk factor for severe COVID-19. Using transcriptomic databases, the authors found that: 1) cardiovascular tissues and endothelial cells express putative genes for severe acute respiratory syndrome coronavirus-2 infection, including angiotensin-converting enzyme 2 (ACE2) and basigin (BSG); 2) severe acute respiratory syndrome coronavirus-2 receptor pathways ACE2/transmembrane serine protease 2 and BSG/peptidylprolyl isomerase B(A) polarize to lung/epithelium and vessel/endothelium, respectively; 3) expression of host genes is relatively stable with age; and 4) notable exceptions are ACE2, which decreases with age in some tissues, and BSG, which increases with age in endothelial cells, suggesting that BSG expression in the vasculature may explain the heightened risk for severe disease with age.
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Key Words
- ACE2, angiotensin converting enzyme 2
- ADAM17, ADAM metallopeptidase domain 17
- BSG, basigin
- COVID-19
- COVID-19, coronavirus disease-2019
- CTSB, cathepsin B
- CTSL, cathepsin L
- GTEx, Genotype-Tissue Expression
- PBMC, peripheral blood mononuclear cells
- PPIA, peptidylprolyl isomerase A
- PPIB, peptidylprolyl isomerase B
- SARS-CoV-2, severe acute respiratory syndrome-coronavirus-2
- TMPRSS2, transmembrane serine protease 2
- age
- cardiovascular
- endothelial cells
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Affiliation(s)
- Blerina Ahmetaj-Shala
- Cardiorespiratory Interface, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Ricky Vaja
- Cardiorespiratory Interface, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Santosh S. Atanur
- Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom
- Institute of Translational Medicine and Therapeutics, Data Science Group, National Institute for Health Research, Biomedical Research Centre, Imperial College London, London, United Kingdom
| | - Peter M. George
- Cardiorespiratory Interface, National Heart and Lung Institute, Imperial College London, London, United Kingdom
- Interstitial Lung Disease Unit, National Heart and Lung Institute, Imperial College London, Royal Brompton and Harefield NHS Foundation Trust, London, United Kingdom
| | - Nicholas S. Kirkby
- Cardiorespiratory Interface, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Jane A. Mitchell
- Cardiorespiratory Interface, National Heart and Lung Institute, Imperial College London, London, United Kingdom
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Brinkhof B, Zhang B, Cui Z, Ye H, Wang H. ALCAM (CD166) as a gene expression marker for human mesenchymal stromal cell characterisation. Gene X 2020; 763S:100031. [PMID: 32550557 PMCID: PMC7285916 DOI: 10.1016/j.gene.2020.100031] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 03/08/2020] [Indexed: 02/06/2023] Open
Abstract
Background Human mesenchymal stromal cells (MSCs) phenotypically share their positive expression of the International Society for Cell and Gene Therapy (ISCT) markers CD73, CD90 and CD105 with fibroblasts. Fibroblasts are often co-isolated as an unwanted by-product from biopsy and they can rapidly overgrow the MSCs in culture. Indeed, many other surface markers have been proposed, though no unique MSC specific marker has been identified yet. Quantitative PCR (qPCR) is a precise, efficient and rapid method for gene expression analysis. To identify a marker suitable for accurate MSC characterisation, qPCR was exploited. Methods and results Two commercially obtained bone marrow (BM) derived MSCs and an hTERT immortalised BM-MSC line (MSC-TERT) have been cultured for different days and at different oxygen levels before RNA extraction. Together with RNA samples previous extracted from umbilical cord derived MSCs and MSC-TERT cells cultured in 2D or 3D, this heterogeneous sample set was quantitatively analysed for the expression levels of 18 candidate MSC marker genes. The expression levels in MSCs were compared with the expression levels in fibroblasts to verify the differentiation capability of these genes between MSCs and fibroblasts. None of the ISCT markers could differentiate between fibroblasts and MSCs. A total of six other genes (ALCAM, CLIC1, EDIL3, EPHA2, NECTIN2, and TMEM47) were identified as possible biomarkers for accurate identification of MSCs. Conclusion Justified by considerations on expression level, reliability and specificity, Activated-Leukocyte Cell Adhesion Molecule (ALCAM) was the best candidate for improving the biomarker set of MSC identification.
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Key Words
- (q)PCR, (quantitative) polymerase chain reaction
- AD, adipose
- AF, Amniotic Fluid
- ALCAM, Activated-Leukocyte Cell Adhesion Molecule
- Activated-leukocyte cell adhesion molecule
- BM, bone marrow
- BSG, Basigin
- Biomarker
- CD, cluster of differentiation
- CLIC1, chloride intracellular channel 1
- CLIC4, chloride intracellular channel 4
- Cq, Quantification cycle
- DF, Dermal Fibroblasts
- DP, Dental Pulp
- EDIL3, EGF like repeats and discoidin domains 3
- ENG, Endoglin
- EPHA2, EPH receptor A2
- ER, Endoplasmatic Reticulum
- FACS, Fluorescence Assisted Cell Sorting
- FN1, Fibronectin 1
- IGFBP7, insulin like growth factor binding protein 7
- ISCT, International Society for Cell and Gene Therapy
- ITGA1, integrin subunit alpha 1
- LAMP1, lysosomal associated membrane protein 1
- LRRC59, leucine rich repeat containing 59
- MCAM, melanoma cell adhesion molecule
- MM, Multiple Myeloma
- MPC, Mesenchymal Progenitor Cell
- MSC
- MSC, Mesenchymal Stromal Cells
- NECTIN2, nectin cell adhesion molecule 2
- NK, Natural Killer
- NT5E, 5′-nucleotidase ecto
- OS, Osteosarcoma
- PL, Placenta
- PPIA, peptidylprolyl isomerase A
- PUM1, pumilio RNA binding family member 1
- RM, Regenerative Medicine
- RNA
- RNA-seq, RNA sequencing
- RT, Reverse Transcriptase
- Regenerative medicine
- SEM, Standard Error of the Mean
- TBP, TATA-box binding protein
- TCF, Tissue Culture Plate
- TE, Tissue Engineering
- TFRC, transferrin receptor
- THY1, Thy-1 cell surface antigen
- TLN1, Talin 1
- TMEM47, transmembrane protein 47
- UC, umbilical cord
- YWHAZ, tyrosine 3-monooxygenase/tryptophan 5-monooxygenase activation protein zeta
- cDNA, DNA complementary to RNA
- qPCR
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Affiliation(s)
- Bas Brinkhof
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, United Kingdom
| | - Bo Zhang
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, United Kingdom
| | - Zhanfeng Cui
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, United Kingdom
| | - Hua Ye
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, United Kingdom
| | - Hui Wang
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, United Kingdom.,Oxford Suzhou Centre for Advanced Research, Suzhou Industrial Park, Jiangsu 215123, China
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Ezhilarasan D, Evraerts J, Brice S, Buc-Calderon P, Karthikeyan S, Sokal E, Najimi M. Silibinin Inhibits Proliferation and Migration of Human Hepatic Stellate LX-2 Cells. J Clin Exp Hepatol 2016; 6:167-174. [PMID: 27746612 PMCID: PMC5052367 DOI: 10.1016/j.jceh.2016.01.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 01/06/2016] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Proliferation of hepatic stellate cells (HSCs) play pivotal role in the progression of hepatic fibrosis consequent to chronic liver injury. Silibinin (SBN), a flavonoid compound, has shown to possess cell cycle arresting potential against many actively proliferating cancers cell lines. The objective of this study was to evaluate the anti-proliferative and cell cycle arresting properties of SBN in rapidly proliferating human hepatic stellate LX-2 cell line. METHODS LX-2 cells were fed with culture medium supplemented with different concentrations of SBN (10, 50 and 100 μM). After 24 and 96 h of treatment, total cell number was determined by counting. Cytotoxicity was evaluated by trypan blue dye exclusion test. The expression profile of cMyc and peroxisome proliferator-activated receptor-γ (PPAR-γ) protein expressions was evaluated by Western blotting. Oxidative stress marker genes profile was quantified using qPCR. The migratory response of HSCs was observed by scrape wound healing assay. RESULTS SBN treatments significantly inhibit the LX-2 cell proliferation (without affecting its viability) in dose dependent manner. This treatment also retards the migration of LX-2 cells toward injured area. In Western blotting studies SBN treatment up regulated the protein expressions of PPAR-γ and inhibited cMyc. CONCLUSION The present study shows that SBN retards the proliferation, activation and migration of LX-2 cells without inducing cytotoxicity and oxidative stress. The profound effects could be due to cell cycle arresting potential of SBN.
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Key Words
- AKR1C1, aldo-keto reductase family 1, member C1
- ARE, antioxidant responsive element
- CDKI, cyclin dependent kinase inhibitor
- CYP450, cytochrome P450
- DMEM, Dulbecco's modified Eagle's medium
- DMSO, dimethylsulphoxide
- ECM, extracellular matrix
- FBS, fetal bovine serum
- GAPDH, glyceraldehyde 3-phosphate dehydrogenase
- HMOX1, heme oxygenase (decycling) 1
- HSCs, hepatic stellate cells
- NQO1, NAD(P)H dehydrogenase, quinone 1
- Nrf-2, nuclear respiratory factor
- PPAR-γ, peroxisome proliferator-activated receptor-γ
- PPIA, peptidylprolyl isomerase A
- ROS, reactive oxygen species
- SBN, silibinin
- TXNRD1, thioredoxin reductase 1
- cytotoxicity
- hepatic stellate cells
- oxidative stress
- qPCR, quantitative polymerase chain reaction
- wound healing
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Affiliation(s)
- Devaraj Ezhilarasan
- Institut de Recherche Expérimentale et Clinique (IREC), Laboratory of Pediatric Hepatology and Cell Therapy, Université Catholique de Louvain, 1200 Brussels, Belgium
| | - Jonathan Evraerts
- Institut de Recherche Expérimentale et Clinique (IREC), Laboratory of Pediatric Hepatology and Cell Therapy, Université Catholique de Louvain, 1200 Brussels, Belgium
| | - Sid Brice
- Louvain Drug Research Institute, Toxicology and Cancer Biology Research Group, PMNT Unit, Université Catholique de Louvain, 1200 Brussels, Belgium
| | - Pedro Buc-Calderon
- Facultad de Ciencias de la Salud, Universidad Arturo Prat, Iquique, Chile
| | - Sivanesan Karthikeyan
- Department of Pharmacology and Environmental Toxicology, Food and Hepatotoxicology Laboratory, Dr. ALM Post Graduate Institute of Basic Medical Sciences, University of Madras, Taramani Campus, Chennai 600 113, India
| | - Etienne Sokal
- Institut de Recherche Expérimentale et Clinique (IREC), Laboratory of Pediatric Hepatology and Cell Therapy, Université Catholique de Louvain, 1200 Brussels, Belgium
| | - Mustapha Najimi
- Institut de Recherche Expérimentale et Clinique (IREC), Laboratory of Pediatric Hepatology and Cell Therapy, Université Catholique de Louvain, 1200 Brussels, Belgium,Address for correspondence: Mustapha Najimi, Institut de Recherche Expérimentale & Clinique (IREC), Laboratory of Pediatric Hepatology and Cell Therapy, Avenue Mounier, 52, Box B1.52.03, 1200 Brussels, Belgium.Institut de Recherche Expérimentale & Clinique (IREC), Laboratory of Pediatric Hepatology and Cell TherapyAvenue Mounier, 52, Box B1.52.03Brussels1200Belgium
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Lu WH, Wang G, Li Y, Li S, Song XY, Wang XY, Chuai M, Lee KKH, Cao L, Yang X. Autophagy functions on EMT in gastrulation of avian embryo. Cell Cycle 2015; 13:2752-64. [PMID: 25486362 DOI: 10.4161/15384101.2015.945850] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Autophagy is important for cell renewing for its contribution to the degradation of bulk cytoplasm, long-lived proteins, and entire organelles and its role in embryonic development is largely unknown. In our study, we investigated the function of autophagy in gastrulation of the chick embryo using both in vivo and in vitro approaches, especially in the EMT process, and we found that autophagy gene Atg7 was expressed on the apical side of the ectoderm and endoderm. Over-expression of Atg7 could enhance the expression of Atg8 and the E-cadherin, the latter of which is a crucial marker of the EMT process. We also found that the disturbance of autophagy could retard the development of chick embryos in HH4 with shorter primitive steak than that in the control group, which is a newly formed structure during EMT process. So we assumed that autophagy could affect EMT process by adhesion molecule expression. Moreover, more molecules, such as slug, chordin, shh et., which were all involved in EMT process, were detected to address the mechanism of this phenomena. We established that the inhibition of autophagy could cause developmental delay by affecting EMT process in gastrulation of chick embryos.
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Key Words
- 3-MA, 3-Methyladenine
- Atg7
- BF, bright-field
- DAPI, 49-6-Diamidino-2-phenylindole
- E-Cad, E-cadherin
- EB, embryoid bodies
- EMT and chick embryo
- EMTs, epithelial-mesenchymal transitions
- GFP, green fluorescent protein
- HN, Hensen's node
- MAPILC3(LC3), microtubule-associated protein 1 light chain 3
- N-Cad, N-cadherin
- NT, neural tube
- PBS, phosphate-buffered saline
- PCD, Programmed cell death
- PD, idiopathic Parkinson's Disease
- PI3K, phosphoinositide-3-kinase
- PPIA, peptidylprolyl isomerase A
- PS, primitive streak
- RAPA, Rapamycin
- RT-PCR, reverse transcription PCR
- autophagy
- gastrulation
- mTOR, mammalian target of rapamycin
- shh, sonic hedgehog
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Affiliation(s)
- Wen-Hui Lu
- a Key Laboratory for Regenerative Medicine of the Ministry of Education; Division of Histology and Embryology; Medical College ; Jinan University ; Guangzhou , China
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