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Shang QX, Yang YS, Zhang HL, Cheng YP, Lu H, Yuan Y, Chen LQ, Ji AF. Vitamin D receptor induces oxidative stress to promote esophageal squamous cell carcinoma proliferation via the p53 signaling pathway. Heliyon 2024; 10:e23832. [PMID: 38234882 PMCID: PMC10792188 DOI: 10.1016/j.heliyon.2023.e23832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 05/16/2023] [Revised: 12/05/2023] [Accepted: 12/13/2023] [Indexed: 01/19/2024] Open
Abstract
Background Esophageal squamous cell carcinoma (ESCC) is a common pathological esophageal cancer with poor prognosis. Vitamin D deficiency reportedly occurs in ESCC patients, and this is related to single nucleotide polymorphism of vitamin D receptor (VDR). Objective We investigated the effect of VDR on ESCC proliferation, invasion, and metastasis and its potential mechanism. Methods ESCC and normal tissues were collected from 20 ESCC patients. The ESCC tissue microarray contained 116 pairs of ESCC and normal tissues and 73 single ESCC tissues. VDR expression and its clinicopathological role were determined by real-time quantitative polymerase chain reaction, Western blot, and immunohistochemistry staining. sh-VDR and VDR overexpression were used to validate the effect of VDR on ESCC cell phenotype, and tandem mass tag-based quantitative proteomics and bioinformatics methods identified differential VDR-related proteins. The downstream pathway and regulatory effect were analyzed using ingenuity pathway analysis (IPA). Differentially expressed proteins were verified through parallel reaction monitoring and Western blot. In vivo imaging visualized subcutaneous tumor growth following tail vein injection of VDR-deficient ESCC cells. Results High VDR expression was observed in ESCC tissues and cells. Gender, T stage, and TNM stage were related to VDR expression, which was the independent prognostic factor related to ESCC. VDR downregulation repressed ESCC cell proliferation, invasion, and migration in vitro and subcutaneous tumor growth and lung metastases in vivo. The cell phenotype changes were reversed upon VDR upregulation, and differential proteins were mainly enriched in the p53 signaling pathway. TP53 cooperated with ABCG2, APOE, FTH1, GCLM, GPX1, HMOX1, JUN, PRDX5, and SOD2 and may activate apoptosis and inhibit oxidative stress, cell metastasis, and proliferation. TP53 was upregulated after VDR knockdown, and TP53 downregulation reversed VDR knockdown-induced cell phenotype changes. Conclusions VDR may inhibit p53 signaling pathway activation and induce ESCC proliferation, invasion, and metastasis by activating oxidative stress.
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Affiliation(s)
- Qi-Xin Shang
- Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Yu-Shang Yang
- Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Han-Lu Zhang
- Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Ya-Ping Cheng
- Heping Hospital Affiliated to Changzhi Medical University, No. 161 Jiefang East Street, Changzhi, 046000, China
| | - Han Lu
- Heping Hospital Affiliated to Changzhi Medical University, No. 161 Jiefang East Street, Changzhi, 046000, China
| | - Yong Yuan
- Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Long-Qi Chen
- Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Ai-Fang Ji
- Heping Hospital Affiliated to Changzhi Medical University, No. 161 Jiefang East Street, Changzhi, 046000, China
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2
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Liang W, Huang X, Shi J. Macrophages Serve as Bidirectional Regulators and Potential Therapeutic Targets for Liver Fibrosis. Cell Biochem Biophys 2023; 81:659-671. [PMID: 37695501 DOI: 10.1007/s12013-023-01173-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 09/02/2023] [Indexed: 09/12/2023]
Abstract
Liver fibrosis is a dynamic pathological process in which the structure and function of the liver abnormally change due to long-term complex inflammatory reactions and chronic liver injury caused by multiple internal and external factors. Previous studies believed that the activation of hepatic stellate cells is a critical part of the occurrence and development of liver fibrosis. However, an increasing number of studies have indicated that the macrophage plays an important role as a central regulator in liver fibrosis, and it directly affects the development and recovery of liver fibrosis. Studies of macrophages and liver fibrosis in the recent 10 years will be reviewed in this paper. This review will not only clarify the molecular mechanism of liver fibrosis regulated by macrophages but also provide new strategies and methods for ameliorating and treating liver fibrosis.
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Affiliation(s)
- Wei Liang
- Clinical Medical Research Center, The Second Affiliated Hospital of Guangxi Medical University, Nanning, 530007, Guangxi, China.
| | - Xianing Huang
- Guangxi International Travel Healthcare Centre (Port Clinic of Nanning Customs District), Nanning, 530021, Guangxi, China
| | - Jingjing Shi
- Department of Gastrointestinal Surgery, Affiliated Tumor Hospital of Guangxi Medical University, Guangxi Clinical Research Center for Colorectal Cancer, Nanning, 530021, Guangxi Zhuang Autonomous Region, China
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Xing X, Sun M, Guo Z, Zhao Y, Cai Y, Zhou P, Wang H, Gao W, Li P, Yang H. Functional annotation map of natural compounds in traditional Chinese medicines library: TCMs with myocardial protection as a case. Acta Pharm Sin B 2023; 13:3802-3816. [PMID: 37719385 PMCID: PMC10502289 DOI: 10.1016/j.apsb.2023.06.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 02/14/2023] [Revised: 05/14/2023] [Accepted: 05/31/2023] [Indexed: 09/19/2023] Open
Abstract
The chemical complexity of traditional Chinese medicines (TCMs) makes the active and functional annotation of natural compounds challenging. Herein, we developed the TCMs-Compounds Functional Annotation platform (TCMs-CFA) for large-scale predicting active compounds with potential mechanisms from TCM complex system, without isolating and activity testing every single compound one by one. The platform was established based on the integration of TCMs knowledge base, chemome profiling, and high-content imaging. It mainly included: (1) selection of herbal drugs of target based on TCMs knowledge base; (2) chemome profiling of TCMs extract library by LC‒MS; (3) cytological profiling of TCMs extract library by high-content cell-based imaging; (4) active compounds discovery by combining each mass signal and multi-parametric cell phenotypes; (5) construction of functional annotation map for predicting the potential mechanisms of lead compounds. In this stud TCMs with myocardial protection were applied as a case study, and validated for the feasibility and utility of the platform. Seven frequently used herbal drugs (Ginseng, etc.) were screened from 100,000 TCMs formulas for myocardial protection and subsequently prepared as a library of 700 extracts. By using TCMs-CFA platform, 81 lead compounds, including 10 novel bioactive ones, were quickly identified by correlating 8089 mass signals with 170,100 cytological parameters from an extract library. The TCMs-CFA platform described a new evidence-led tool for the rapid discovery process by data mining strategies, which is valuable for novel lead compounds from TCMs. All computations are done through Python and are publicly available on GitHub.
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Affiliation(s)
- Xudong Xing
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Mengru Sun
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Zifan Guo
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Yongjuan Zhao
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Yuru Cai
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Ping Zhou
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Huiying Wang
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Wen Gao
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Ping Li
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Hua Yang
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
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Li J, Li X, Song S, Sun Z, Li Y, Yang L, Xie Z, Cai Y, Zhao Y. Mitochondria spatially and temporally modulate VSMC phenotypes via interacting with cytoskeleton in cardiovascular diseases. Redox Biol 2023; 64:102778. [PMID: 37321061 DOI: 10.1016/j.redox.2023.102778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 05/31/2023] [Accepted: 06/06/2023] [Indexed: 06/17/2023] Open
Abstract
Cardiovascular diseases caused by atherosclerosis (AS) seriously endanger human health, which is closely related to vascular smooth muscle cell (VSMC) phenotypes. VSMC phenotypic transformation is marked by the alteration of phenotypic marker expression and cellular behaviour. Intriguingly, the mitochondrial metabolism and dynamics altered during VSMC phenotypic transformation. Firstly, this review combs VSMC mitochondrial metabolism in three aspects: mitochondrial ROS generation, mutated mitochondrial DNA (mtDNA) and calcium metabolism respectively. Secondly, we summarized the role of mitochondrial dynamics in regulating VSMC phenotypes. We further emphasized the association between mitochondria and cytoskelton via presenting cytoskeletal support during mitochondrial dynamics process, and discussed its impact on their respective dynamics. Finally, considering that both mitochondria and cytoskeleton are mechano-sensitive organelles, we demonstrated their direct and indirect interaction under extracellular mechanical stimuli through several mechano-sensitive signaling pathways. We additionally discussed related researches in other cell types in order to inspire deeper thinking and reasonable speculation of potential regulatory mechanism in VSMC phenotypic transformation.
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Affiliation(s)
- Jingwen Li
- Laboratory of Tissue and Cell Biology, Lab Teaching & Management Center, Chongqing Medical University, NO.1 Medical College Road, Yuzhong District, Chongqing, 400016, China
| | - Xinyue Li
- Laboratory of Tissue and Cell Biology, Lab Teaching & Management Center, Chongqing Medical University, NO.1 Medical College Road, Yuzhong District, Chongqing, 400016, China
| | - Sijie Song
- Laboratory of Tissue and Cell Biology, Lab Teaching & Management Center, Chongqing Medical University, NO.1 Medical College Road, Yuzhong District, Chongqing, 400016, China
| | - Zhengwen Sun
- Laboratory of Tissue and Cell Biology, Lab Teaching & Management Center, Chongqing Medical University, NO.1 Medical College Road, Yuzhong District, Chongqing, 400016, China
| | - Yuanzhu Li
- Laboratory of Tissue and Cell Biology, Lab Teaching & Management Center, Chongqing Medical University, NO.1 Medical College Road, Yuzhong District, Chongqing, 400016, China
| | - Long Yang
- Laboratory of Tissue and Cell Biology, Lab Teaching & Management Center, Chongqing Medical University, NO.1 Medical College Road, Yuzhong District, Chongqing, 400016, China
| | - Zhenhong Xie
- Laboratory of Tissue and Cell Biology, Lab Teaching & Management Center, Chongqing Medical University, NO.1 Medical College Road, Yuzhong District, Chongqing, 400016, China
| | - Yikui Cai
- Laboratory of Tissue and Cell Biology, Lab Teaching & Management Center, Chongqing Medical University, NO.1 Medical College Road, Yuzhong District, Chongqing, 400016, China
| | - Yinping Zhao
- Laboratory of Tissue and Cell Biology, Lab Teaching & Management Center, Chongqing Medical University, NO.1 Medical College Road, Yuzhong District, Chongqing, 400016, China.
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López-Acosta O, Ruiz-Ramírez A, Barrios-Maya MÁ, Alarcon-Aguilar J, Alarcon-Enos J, Céspedes Acuña CL, El-Hafidi M. Lipotoxicity, glucotoxicity and some strategies to protect vascular smooth muscle cell against proliferative phenotype in metabolic syndrome. Food Chem Toxicol 2023; 172:113546. [PMID: 36513245 DOI: 10.1016/j.fct.2022.113546] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 11/16/2022] [Accepted: 11/29/2022] [Indexed: 12/14/2022]
Abstract
Metabolic syndrome (MetS) is a risk factor for the development of cardiovascular disease (CVD) and atherosclerosis through a mechanism that involves vascular smooth muscle cell (VSMC) proliferation, lipotoxicity and glucotoxicity. Several molecules found to be increased in MetS, including free fatty acids, fatty acid binding protein 4, leptin, resistin, oxidized lipoprotein particles, and advanced glycation end products, influence VSMC proliferation. Most of these molecules act through their receptors on VSMCs by activating several signaling pathways associated with ROS generation in various cellular compartments. ROS from NADPH-oxidase and mitochondria have been found to promote VSMC proliferation and cell cycle progression. In addition, most of the natural or synthetic substances described in this review, including pharmaceuticals with hypoglycemic and hypolipidemic properties, attenuate VSMC proliferation by their simultaneous modulation of cell signaling and their scavenging property due to the presence of a phenolic ring in their structure. This review discusses recent data in the literature on the role that several MetS-related molecules and ROS play in the change from contractile to proliferative phenotype of VSMCs. Hence the importance of proposing an appropriate strategy to prevent uncontrolled VSMC proliferation using antioxidants, hypoglycemic and hypolipidemic agents.
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Affiliation(s)
- Ocarol López-Acosta
- Depto de Biomedicina Cardiovascular, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano No 1, Colonia Sección XVI, Tlalpan, 14080, México D.F., Mexico
| | - Angélica Ruiz-Ramírez
- Depto de Biomedicina Cardiovascular, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano No 1, Colonia Sección XVI, Tlalpan, 14080, México D.F., Mexico
| | - Miguel-Ángel Barrios-Maya
- Depto de Biomedicina Cardiovascular, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano No 1, Colonia Sección XVI, Tlalpan, 14080, México D.F., Mexico
| | - Javier Alarcon-Aguilar
- Laboratorio de Farmacología, Depto. de Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana Unidad Iztapalapa, Iztapalapa, Mexico
| | - Julio Alarcon-Enos
- Departamento de Ciencias Básicas, Facultad de Ciencias, Universidad del Bio Bio, Av. Andres Bello 720, Chillan, Chile
| | - Carlos L Céspedes Acuña
- Departamento de Ciencias Básicas, Facultad de Ciencias, Universidad del Bio Bio, Av. Andres Bello 720, Chillan, Chile.
| | - Mohammed El-Hafidi
- Depto de Biomedicina Cardiovascular, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano No 1, Colonia Sección XVI, Tlalpan, 14080, México D.F., Mexico.
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6
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Liu Y, Cheng R, Wu Y, Liu C, Liu Y, Chang Q, Yin J. Tumor-Promoting Effects of Microrna-421/4-Aminobutyrate Aminotransferase Axis in Hepatocellular Carcinoma. Rev Invest Clin 2023; 75:233-248. [PMID: 37918014 DOI: 10.24875/ric.23000073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 08/03/2023] [Indexed: 11/04/2023]
Abstract
Background MicroRNA-421 (miR-421) has been implicated in hepatocellular carcinoma (HCC), but its potential mechanism in HCC remains unclear. Objectives The study aimed to study the potential mechanism of miR-421 in HCC which is necessary. Methods The downstream target genes of miR-421 were screened in HCC tissues and cells using miDIP, Targetscan, and starBase databases. Differential analysis, survival analysis, and Pearson correlation analysis were performed between miR-421 and its downstream target genes. Quantitative reverse transcription polymerase chain reaction and western blot were used to assay RNA and protein levels of 4-aminobutyrate aminotransferase (ABAT) and epithelial-mesenchymal transition (EMT)-related proteins. Cell-based assays, including CCK-8, wound healing, transwell, flow cytometry, and metabolic measurements, were implemented to assess proliferation, migration, invasion, cell cycle, and apoptosis of HCC cells with different treatments. Dual-luciferase assay was utilized to detect the targeting relationship between miR-421 and ABAT. Results miR-421 level was elevated in HCC tissues and cells, and low miR-421 expression hindered phenotype progression of HCC cells. ABAT was identified as a direct target of miR-421 in HCC cells, and miR-421 could inhibit ABAT expression. Rescue assay revealed that miR-421 promoted HCC cell tumorigenesis progress and affected cell metabolic remodeling through down-regulating ABAT. Conclusion The miR-421/ABAT regulatory axis promoted HCC cell tumorigenesis progress, highlighting its potential as a therapeutic target for HCC.
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Affiliation(s)
- Yuanguang Liu
- Department of Hepatobiliary Surgery, Tangshan Gongren Hospital, Tangshan, China
| | - Ran Cheng
- Department of Hepatobiliary Surgery, Tangshan Gongren Hospital, Tangshan, China
| | - Yijie Wu
- Department of Hepatobiliary Surgery, Tangshan Gongren Hospital, Tangshan, China
| | - Chunmei Liu
- Department of Hepatobiliary Surgery, Tangshan Gongren Hospital, Tangshan, China
| | - Yang Liu
- Department of Hepatobiliary Surgery, Tangshan Gongren Hospital, Tangshan, China
| | - Qing Chang
- Department of Head and Neck Surgery, Tangshan Gongren Hospital, Tangshan, China
| | - Jun Yin
- Department of Hepatobiliary Surgery, Tangshan Gongren Hospital, Tangshan, China
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Zhang J, Tan GL, Jiang M, Wang TS, Liu GH, Xiong SS, Qing X. Effects of SENP1-induced deSUMOylation of STAT1 on proliferation and invasion in nasopharyngeal carcinoma. Cell Signal 2023; 101:110530. [PMID: 36417976 DOI: 10.1016/j.cellsig.2022.110530] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 11/13/2022] [Accepted: 11/18/2022] [Indexed: 11/21/2022]
Abstract
Nasopharyngeal carcinoma (NPC) is the most common nasopharyngeal squamous cell carcinoma, and recurrence and metastasis are still difficult problems in its current treatment. This study aimed to investigate the effect of SUMO modification of STAT1 protein on the proliferation and invasion of NPC, and to reveal the underlying mechanism. Two gene expression profiles (GSE12452 and GSE53819) of 49 nasopharyngeal carcinomas and 28 normal controls were analyzed to identify differentially expressed genes. In total, 448 up-regulated genes and 622 down-regulated genes were identified. In addition, 16 SUMO-related molecules in the NPC dataset GSE102349 with survival data were analyzed, and it was found that the high expression of SENP1 and SENP2 was closely related to the poor prognosis of NPC. GO and GSEA analysis suggested that immune-related biological processes, IFN-γ-STAT signaling pathway and protein modification-related molecules were significantly enriched in NPC, resulting in poor survival prognosis. In order to verify the results of bioinformatics analysis and explore its underlying molecular mechanisms, western blot, Immunofluorescence, Immunoprecipitation and Immunohistochemistry are conducted in NPC cells, animals and clinical samples. SENP1 and STAT protein levels were increased in NPC tissues. SENP1 inhibited SUMOylation of STAT1, thereby promoting the protein level of STAT1 and the nuclear translocation. SENP1 promoted the proliferation and invasion of NPC by inducing STAT1. Overall, SENP1-induced deSUMOylation of STAT1, resulting in an increased proliferation and invasion of nasopharyngeal carcinoma.
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Baghaei K, Mazhari S, Tokhanbigli S, Parsamanesh G, Alavifard H, Schaafsma D, Ghavami S. Therapeutic potential of targeting regulatory mechanisms of hepatic stellate cell activation in liver fibrosis. Drug Discov Today 2021; 27:1044-1061. [PMID: 34952225 DOI: 10.1016/j.drudis.2021.12.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 11/11/2021] [Accepted: 12/17/2021] [Indexed: 11/03/2022]
Abstract
Hepatic fibrosis is a manifestation of different etiologies of liver disease with the involvement of multiple mediators in complex network interactions. Activated hepatic stellate cells (aHSCs) are the central driver of hepatic fibrosis, given their potential to induce connective tissue formation and extracellular matrix (ECM) protein accumulation. Therefore, identifying the cellular and molecular pathways involved in the activation of HSCs is crucial in gaining mechanistic and therapeutic perspectives to more effectively target the disease. In addition to a comprehensive summary of our current understanding of the role of HSCs in liver fibrosis, we also discuss here the proposed therapeutic strategies based on targeting HSCs.
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Affiliation(s)
- Kaveh Baghaei
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran 1985717413, Iran; Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran 1985717413, Iran
| | - Sogol Mazhari
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran 1985717413, Iran
| | - Samaneh Tokhanbigli
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran 1985717413, Iran
| | - Gilda Parsamanesh
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran 1985717413, Iran
| | - Helia Alavifard
- Basic and Molecular Epidemiology of Gastrointestinal Disorders Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran 1985717413, Iran
| | | | - Saeid Ghavami
- Department of Human Anatomy and Cell Science, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada.
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Sheng Y, Cao M, Liu Y, He Y, Zhang G, Du Y, Gao F, Yang C. Hyaluronan synthase 2 (HAS2) regulates cell phenotype and invadopodia formation in luminal-like breast cancer cells. Mol Cell Biochem 2021; 476:3383-3391. [PMID: 33954907 DOI: 10.1007/s11010-021-04165-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 04/16/2021] [Indexed: 01/23/2023]
Abstract
Although luminal breast cancer cells are typically highly cohesive epithelial cells and have low invasive ability, many eventually develop metastasis. Until now, the underlying mechanisms remain obscure. In this work, we showed that the level of hyaluronic acid synthase 2 (HAS2) was positively correlated with the malignant phenotype of breast cancer cells. Notably, the increased expression of HAS2 promoted the invasive and migratory abilities of luminal breast cancer cells in vitro, followed by a reduced expression of E-cadherin, β-catenin, and ZO-1, and an elevated expression of N-cadherin and vimentin. Furthermore, overexpression of HAS2 promoted while knockdown of HAS2 impeded invadopodia formation, which subsequently increased or decreased the activation of cortactin, Tks5, and metalloproteinases (MMPs). Activation of these invadopodia-related proteins was prevented by inhibition of HAS2 or disruption of HA, which in turn attenuated the increased motility and invasiveness. Further, in vivo study showed that, HAS2 increased tumor growth and the rate of lung metastasis via driving transition to an invasive cell phenotype in SCID mice that were orthotopically transplanted with luminal breast cancer cells. Collectively, our results showed that HAS2 promoted cell invasion by inducing transition to an invasive phenotype and by enhancing invadopodia formation in luminal breast cancer cells, which may provide new mechanistic insights into its role in tumor metastasis.
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Affiliation(s)
- Yumeng Sheng
- Department of Molecular Biology Laboratory, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Manlin Cao
- Department of Rehabilitation Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Yiwen Liu
- Department of Molecular Biology Laboratory, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Yiqing He
- Department of Molecular Biology Laboratory, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Guoliang Zhang
- Department of Molecular Biology Laboratory, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Yan Du
- Department of Molecular Biology Laboratory, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China
| | - Feng Gao
- Department of Molecular Biology Laboratory, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China. .,Department of Clinical Laboratory, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China.
| | - Cuixia Yang
- Department of Molecular Biology Laboratory, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China. .,Department of Clinical Laboratory, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China.
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Kowal JM, Möller S, Ali D, Figeac F, Barington T, Schmal H, Kassem M. Identification of a clinical signature predictive of differentiation fate of human bone marrow stromal cells. Stem Cell Res Ther 2021; 12:265. [PMID: 33941262 PMCID: PMC8091554 DOI: 10.1186/s13287-021-02338-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 10/26/2020] [Accepted: 04/19/2021] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Transplantation of human bone marrow stromal cells (hBMSCs) is a promising therapy for bone regeneration due to their ability to differentiate into bone forming osteoblastic cells. However, transplanted hBMSCs exhibit variable capacity for bone formation resulting in inconsistent clinical outcome. The aim of the study was to identify a set of donor- and cell-related characteristics that detect hBMSCs with optimal osteoblastic differentiation capacity. METHODS We collected hBMSCs from 58 patients undergoing surgery for bone fracture. Clinical profile of the donors and in vitro characteristics of cultured hBMSCs were included in uni- and multivariable analysis to determine their predictive value for osteoblastic versus adipocytic differentiation capacity assessed by quantification of mineralized matrix and mature adipocyte formation, respectively. RESULTS We identified a signature that explained > 50% of variation in osteoblastic differentiation outcome which included the following positive predictors: donor sex (male), absence of osteoporosis diagnosis, intake of vitamin D supplements, higher fraction of CD146+, and alkaline phosphate (ALP+) cells. With the exception of vitamin D and ALP+ cells, these variables were also negative predictors of adipocytic differentiation. CONCLUSIONS Using a combination of clinical and cellular criteria, it is possible to predict differentiation outcome of hBMSCs. This signature may be helpful in selecting donor cells in clinical trials of bone regeneration.
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Affiliation(s)
- Justyna Magdalena Kowal
- Department of Endocrinology, Odense University Hospital, Odense, Denmark. .,Molecular Endocrinology Unit (KMEB), Institute of Clinical Research, University of Southern Denmark, Odense, Denmark.
| | - Sören Möller
- OPEN - Open Patient data Explorative Network, Odense University Hospital and Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Dalia Ali
- Department of Endocrinology, Odense University Hospital, Odense, Denmark.,Molecular Endocrinology Unit (KMEB), Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Florence Figeac
- Department of Endocrinology, Odense University Hospital, Odense, Denmark.,Molecular Endocrinology Unit (KMEB), Institute of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Torben Barington
- Department of Clinical Immunology, Odense University Hospital, Odense, Denmark.,Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Hagen Schmal
- Department of Orthopedics and Traumatology, Odense University Hospital, Odense, Denmark.,Department of Orthopedics and Trauma Surgery, Medical Center - Albert-Ludwigs-University of Freiburg, Faculty of Medicine, Albert-Ludwigs-University of Freiburg, Hugstetter Straße 55, 79106, Freiburg, Germany
| | - Moustapha Kassem
- Department of Endocrinology, Odense University Hospital, Odense, Denmark.,Molecular Endocrinology Unit (KMEB), Institute of Clinical Research, University of Southern Denmark, Odense, Denmark.,Department of Cellular and Molecular Medicine, Danish Stem Cell Center (DanStem), University of Copenhagen, 2200, Copenhagen, Denmark
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Wang C, Hu J, Chen Z, Wang Y, Lu S, Zhang Y, Li Y, Xiang Y, Ji Y, Zeng C, Ding Y, Wang W. Reversibility of hAT-MSCs phenotypic and metabolic changes after exposure to and withdrawal from HCC-conditioned medium through regulation of the ROS/MAPK/HIF-1α signaling pathway. Stem Cell Res Ther 2020; 11:506. [PMID: 33246501 PMCID: PMC7694319 DOI: 10.1186/s13287-020-02010-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 05/06/2020] [Accepted: 11/03/2020] [Indexed: 01/14/2023] Open
Abstract
Background Mesenchymal stem cells (MSCs) play an important role in tumor progression; concomitantly, MSCs also undergo profound changes in the tumor microenvironment (TME). These changes can directly impact the application and efficacy of MSC-based anti-tumor therapy. However, few studies have focused on the regulation of MSC fate in TME, which will limit the progress of MSC-based anti-tumor therapy. Herein, we investigated the effects of conditioned medium from human hepatocellular carcinoma cells (HCC-CM) on the phenotype and glucose metabolism of human adipose tissue-derived MSCs (hAT-MSCs). Methods The passage 2 (P2) to passage 3 (P3) hAT-MSCs were exposed to conditioned medium from Hep3B, Huh7 and HCCLM3 cells for 4–8 weeks in vitro. Then, immunofluorescent, CCK-8 assay, EdU assay, Transwell assay, and flow cytometry were used to assess the alterations in cell phenotype in terms of cell morphology, secretory profiles, proliferation, migration, invasion, cell cycle, and apoptosis. In addition, glucose metabolism was evaluated by related kits. Next, the treated hAT-MSCs were subjected to withdrawal from HCC-CM for 2–4 weeks, and alterations in phenotype and glucose metabolism were reevaluated. Finally, the molecular mechanism was clarified by Western blotting. Results The results revealed that after exposure to HCC-CM, hAT-MSCs developed a stellate-shaped morphology. In association with cytoskeleton remodeling, hAT-MSCs showed enhanced capacities for migration and invasion, while cell proliferation was inhibited by regulating the cell cycle by downregulating cyclins and cyclin-dependent kinases and activating the mitochondrial apoptosis pathway. In terms of glucose metabolism, our results showed mitochondrial dysfunction and elevated glycolysis of hAT-MSCs. However, interestingly, when the treated hAT-MSCs were subjected to withdrawal from HCC-CM, the alterations in phenotype and glucose metabolism could be reversed, but secretory phenotype and tumor-promoting properties appear to be permanent. Further studies showed that these changes in hAT-MSCs may be regulated by the ROS/MAPK/HIF-1α signaling pathway. Conclusion Taken together, the effects of long-term HCC-CM treatment on phenotype and glucose metabolism in hAT-MSCs are modest and largely reversible after withdrawal, but HCC-CM endow hAT-MSCs with permanent secretory phenotype and tumor-promoting properties. This is the first report on the reversal of phenotype and glucose metabolism in tumor-associated MSCs (TA-MSCs), it is anticipated that new insights into TA-MSCs will lead to the development of novel strategies for MSC-based anti-tumor therapy. Supplementary Information The online version contains supplementary material available at 10.1186/s13287-020-02010-0.
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Affiliation(s)
- Chenyang Wang
- Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.,Key Laboratory of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Tumor of Zhejiang Province, No. 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China
| | - Jie Hu
- Department of Plastic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, No. 79 Qingchun Road, Hangzhou, 310003, Zhejiang, China
| | - Zheng Chen
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, No. 79 Qingchun Road, Hangzhou, 310003, Zhejiang, China
| | - Yifan Wang
- Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.,Key Laboratory of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Tumor of Zhejiang Province, No. 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China
| | - Sinan Lu
- Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.,Key Laboratory of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Tumor of Zhejiang Province, No. 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China
| | - Yuan Zhang
- Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.,Key Laboratory of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Tumor of Zhejiang Province, No. 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China
| | - Yufeng Li
- Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.,Key Laboratory of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Tumor of Zhejiang Province, No. 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China
| | - Yucheng Xiang
- Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.,Key Laboratory of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Tumor of Zhejiang Province, No. 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China
| | - Yutian Ji
- Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.,Key Laboratory of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Tumor of Zhejiang Province, No. 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China
| | - Cheng Zeng
- Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.,Key Laboratory of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Tumor of Zhejiang Province, No. 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China
| | - Yuan Ding
- Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.,Key Laboratory of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Tumor of Zhejiang Province, No. 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.,Research Center of Diagnosis and Treatment Technology for Hepatocellular Carcinoma of Zhejiang Province, No. 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.,Clinical Medicine Innovation Center of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Diseases of Zhejiang University, No. 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.,Clinical Research Center of Hepatobiliary and Pancreatic Diseases of Zhejiang Province, No. 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China
| | - Weilin Wang
- Department of Hepatobiliary and Pancreatic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, No. 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China. .,Key Laboratory of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Tumor of Zhejiang Province, No. 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China. .,Research Center of Diagnosis and Treatment Technology for Hepatocellular Carcinoma of Zhejiang Province, No. 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China. .,Clinical Medicine Innovation Center of Precision Diagnosis and Treatment for Hepatobiliary and Pancreatic Diseases of Zhejiang University, No. 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China. .,Clinical Research Center of Hepatobiliary and Pancreatic Diseases of Zhejiang Province, No. 88 Jiefang Road, Hangzhou, 310009, Zhejiang, China.
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12
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Kobaisi F, Fayyad N, Sulpice E, Badran B, Fayyad-Kazan H, Rachidi W, Gidrol X. High-throughput synthetic rescue for exhaustive characterization of suppressor mutations in human genes. Cell Mol Life Sci 2020; 77:4209-22. [PMID: 32270227 DOI: 10.1007/s00018-020-03519-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 03/21/2020] [Accepted: 03/30/2020] [Indexed: 02/06/2023]
Abstract
Inherited or acquired mutations can lead to pathological outcomes. However, in a process defined as synthetic rescue, phenotypic outcome created by primary mutation is alleviated by suppressor mutations. An exhaustive characterization of these mutations in humans is extremely valuable to better comprehend why patients carrying the same detrimental mutation exhibit different pathological outcomes or different responses to treatment. Here, we first review all known suppressor mutations' mechanisms characterized by genetic screens on model species like yeast or flies. However, human suppressor mutations are scarce, despite some being discovered based on orthologue genes. Because of recent advances in high-throughput screening, developing an inventory of human suppressor mutations for pathological processes seems achievable. In addition, we review several screening methods for suppressor mutations in cultured human cells through knock-out, knock-down or random mutagenesis screens on large scale. We provide examples of studies published over the past years that opened new therapeutic avenues, particularly in oncology.
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13
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Liu G, Fu M, Li F, Fu W, Zhao Z, Xia H, Niu Y. Tissue-engineered PLLA/gelatine nanofibrous scaffold promoting the phenotypic expression of epithelial and smooth muscle cells for urethral reconstruction. Mater Sci Eng C Mater Biol Appl 2020; 111:110810. [PMID: 32279818 DOI: 10.1016/j.msec.2020.110810] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Revised: 03/02/2020] [Accepted: 03/02/2020] [Indexed: 01/31/2023]
Abstract
The repair and regeneration of tissues using tissue-engineered scaffolds represent the ultimate goal of regenerative medicine. Despite rapid developments in the field, urethral tissue engineering methods are still insufficient to replicate natural urethral tissue because the bioactivity of existing scaffolds is inefficient, especially for large tissue defects, which require large tissue-engineered scaffolds. Here, we describe the efficiency of gelatine-functionalized, tubular nanofibrous scaffolds of poly(l-lactic acid) (PLLA) in regulating the phenotypic expression of epithelial cells (ECs) and smooth muscle cells (SMCs) for urethral reconstruction. Flexible PLLA/gelatine tubular nanofibrous scaffolds with hierarchical architecture were fabricated by electrospinning. The PLLA/gelatine nanofibrous scaffold exhibited enhanced hydrophilicity and significantly promoted the adhesion, oriented elongation, and proliferation of New Zealand rabbit autologous ECs and SMCs simultaneously. Compared with pure PLLA nanofibrous scaffold, PLLA/gelatine nanofibrous scaffolds upregulated the expression of keratin (AE1/AE3) in ECs and actin (α-SMA) in SMCs as well as the synthesis of elastin. Three months of in vivo scaffold replacement of New Zealand rabbit urethras indicated that a tubular cellularized PLLA/gelatine nanofibrous scaffold maintained urethral patency and facilitated oriented SMC remodeling, lumen epithelialization, and angiogenesis. Our observations showed the synergistic effects of nano-morphology and biochemical clues in the design of biomimetic scaffolds, which can effectively promote urethral regeneration.
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Affiliation(s)
- Guochang Liu
- Department of Pediatric Surgery, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China
| | - Ming Fu
- Department of Pediatric Surgery, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China
| | - Feng Li
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, China
| | - Wen Fu
- Department of Pediatric Surgery, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China
| | - Zhang Zhao
- Department of Pediatric Surgery, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China
| | - Huimin Xia
- Department of Pediatric Surgery, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China.
| | - Yuqing Niu
- Department of Pediatric Surgery, Guangdong Provincial Key Laboratory of Research in Structural Birth Defect Disease, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou 510623, Guangdong, China; State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, China.
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14
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Goudarzi N, Shabani R, Ebrahimi M, Baghestani A, Dehdashtian E, Vahabzadeh G, Soleimani M, Moradi F, Katebi M. Comparative phenotypic characterization of human colostrum and breast milk-derived stem cells. Hum Cell 2020; 33:308-317. [PMID: 31975030 DOI: 10.1007/s13577-019-00320-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 12/20/2019] [Indexed: 01/14/2023]
Abstract
There is a diverse population of stem cells in human breast milk that can be employed for therapeutic purposes as a reservoir of cells. The current study mainly aimed to determine the nature markers expressing on stem cells. For this aim, the expression of embryonic stem cell markers, as well as the expression of endothelial, mesenchymal, neural, and hematopoietic markers were evaluated by the flow cytometry analysis in fresh colostrum, breast milk, and cultured colostrum samples. The results showed that the embryonic (OCT4, SOX2, HLA-DR), hematopoietic (CD33, CD45, CD117), neural (CD133, Nestin), and mesenchymal (CD44, SCA1) stem cell markers present in colostrum had higher expression in comparison with their counterpart markers in fresh breast milk. The expression markers of stem cells in colostrum following a 2-week culture period were significantly increased compared with their counterpart markers in colostrum before the culture process. In the culture of breastmilk, cells were not observed adherent cells and colonies. Our findings form flow cytometry and cell culture suggest that the lactation stage could be one of the factors influencing the stem cell population and, consequently, the cultivation of breastmilk cells. The present study indicates that colostrum is a tremendous source of stem cells that could be applied in cell-based research.
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Affiliation(s)
- Nasim Goudarzi
- Cellular and Molecular Research Center, Iran University of Medical Sciences, East Hemmat Highway, Tehran, Iran.,Department of Anatomy, Faculty of Medical Sciences, Iran University of Medical Sciences, East Hemmat Highway, Tehran, Iran
| | - Ronak Shabani
- Cellular and Molecular Research Center, Iran University of Medical Sciences, East Hemmat Highway, Tehran, Iran.,Department of Anatomy, Faculty of Medical Sciences, Iran University of Medical Sciences, East Hemmat Highway, Tehran, Iran
| | - Marzieh Ebrahimi
- Department of Stem Cells and Developmental Biology at Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, End of North Banihashem, West Resalat Highway, Tehran, Iran
| | - Amir Baghestani
- Department of Anatomy, Scholar Medicine, University of Medical Sciences, East Hemmat Highway, Tehran, Iran
| | - Ehsan Dehdashtian
- Department of Anatomy, Scholar Medicine, University of Medical Sciences, East Hemmat Highway, Tehran, Iran
| | - Gelareh Vahabzadeh
- Department of Pharmacology, Faculty of Medical Sciences, Iran University of Medical Sciences, East Hemmat Highway, Tehran, Iran
| | - Mansoure Soleimani
- Cellular and Molecular Research Center, Iran University of Medical Sciences, East Hemmat Highway, Tehran, Iran.,Department of Anatomy, Faculty of Medical Sciences, Iran University of Medical Sciences, East Hemmat Highway, Tehran, Iran
| | - Fatemeh Moradi
- Cellular and Molecular Research Center, Iran University of Medical Sciences, East Hemmat Highway, Tehran, Iran. .,Department of Anatomy, Faculty of Medical Sciences, Iran University of Medical Sciences, East Hemmat Highway, Tehran, Iran.
| | - Majid Katebi
- Department of Anatomy, Faculty of Medical Science, Hormozgan University of Medical Sciences, Shahid Chamran Boulevard, Bandar Abbas, Hormozgan, Iran.
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15
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Chen B, Huang S, Pisanic Ii TR, Stark A, Tao Y, Cheng B, Li Y, Wei Y, Zhao W, Wang TH, Wu J. Rab8 GTPase regulates Klotho-mediated inhibition of cell growth and progression by directly modulating its surface expression in human non-small cell lung cancer. EBioMedicine 2019; 49:118-132. [PMID: 31707148 PMCID: PMC6945242 DOI: 10.1016/j.ebiom.2019.10.040] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 10/18/2019] [Accepted: 10/22/2019] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND The klotho (KL) gene is an anti-aging gene that has recently been shown to also function as a general tumor suppressor. However, there is currently only limited information regarding the potential molecular signals for regulation of Klotho without identifying precise molecular mechanisms or interactions. METHODS We performed a mass spectrometry (MS) assay to screen candidate proteins complexed with Klotho derived from immunoprecipitation in human non-small cell lung cancer (NSCLC) cells, and identified Rab8 to be the protein that most prominently interacts with Klotho. We further investigated whether Rab8 can regulate trafficking of Klotho and which process it would modulate using surface biotinylation assay, immunofluorescence and fluorescence ratio microscopy. Furthermore, we explored whether Rab8 is involved in Klotho-mediated function in NSCLC, and verified the results which we found in vivo using xenograft mouse model. FINDINGS We report discovery of Rab8 as a Klotho-interacting protein that acts as a critical modulator of Klotho surface expression in human NSCLC. In particular, we report that Rab8 is co-localized and associated with Klotho, and Klotho trafficking is regulated by Rab8. Moreover, we found that Rab8 modulates surface levels of Klotho via a post-biosynthetic pathway, as opposed to an endocytic pathway. Furthermore, we demonstrate that Rab8 is involved in Klotho-mediated regulation of cell proliferation, migration, invasiveness, epithelial-mesenchymal transition (EMT), and Wnt-β-catenin signaling in NSCLC. Additionally, Rab8 overexpression was also found to increase Klotho-mediated inhibition of NSCLC tumorigenesis in vivo. INTERPRETATION Overall, our findings suggest that Rab8 GTPase can regulate Klotho-mediated inhibition of Wnt signaling activity by modulating translocation of Klotho onto the cell surface, which in turn affects Klotho-mediated inhibition of cell proliferation, migration and invasiveness in NSCLC. These results have important implications for the development of new therapeutic targets, Klotho-related research in the context of NSCLC as well as other areas, and provide a working model for Rab8 function in the context of cancer and cancer biology.
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Affiliation(s)
- Bo Chen
- Jiangsu Provincial Key Laboratory of Geriatrics, Department of Geriatrics, Jiangsu Province Hospital, the First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu 210029, China; Johns Hopkins Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Shuhong Huang
- Institute of Basic Medicine, Shandong Academy of Medical Sciences, Jinan, Shandong 250000, China
| | - Thomas R Pisanic Ii
- Johns Hopkins Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Alejandro Stark
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Yong Tao
- The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, United States
| | - Bei Cheng
- Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Yue Li
- Jiangsu Provincial Key Laboratory of Geriatrics, Department of Geriatrics, Jiangsu Province Hospital, the First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu 210029, China
| | - Yunyan Wei
- Department of Respiration, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, China
| | - Weihong Zhao
- Jiangsu Provincial Key Laboratory of Geriatrics, Department of Geriatrics, Jiangsu Province Hospital, the First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu 210029, China
| | - Tza-Huei Wang
- Johns Hopkins Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, Maryland 21218, United States; Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States; The Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, United States; Department of Mechanical Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Jianqing Wu
- Jiangsu Provincial Key Laboratory of Geriatrics, Department of Geriatrics, Jiangsu Province Hospital, the First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu 210029, China.
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16
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Bakken T, Cowell L, Aevermann BD, Novotny M, Hodge R, Miller JA, Lee A, Chang I, McCorrison J, Pulendran B, Qian Y, Schork NJ, Lasken RS, Lein ES, Scheuermann RH. Cell type discovery and representation in the era of high-content single cell phenotyping. BMC Bioinformatics 2017; 18:559. [PMID: 29322913 PMCID: PMC5763450 DOI: 10.1186/s12859-017-1977-1] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [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] [Indexed: 01/06/2023] Open
Abstract
Background A fundamental characteristic of multicellular organisms is the specialization of functional cell types through the process of differentiation. These specialized cell types not only characterize the normal functioning of different organs and tissues, they can also be used as cellular biomarkers of a variety of different disease states and therapeutic/vaccine responses. In order to serve as a reference for cell type representation, the Cell Ontology has been developed to provide a standard nomenclature of defined cell types for comparative analysis and biomarker discovery. Historically, these cell types have been defined based on unique cellular shapes and structures, anatomic locations, and marker protein expression. However, we are now experiencing a revolution in cellular characterization resulting from the application of new high-throughput, high-content cytometry and sequencing technologies. The resulting explosion in the number of distinct cell types being identified is challenging the current paradigm for cell type definition in the Cell Ontology. Results In this paper, we provide examples of state-of-the-art cellular biomarker characterization using high-content cytometry and single cell RNA sequencing, and present strategies for standardized cell type representations based on the data outputs from these cutting-edge technologies, including “context annotations” in the form of standardized experiment metadata about the specimen source analyzed and marker genes that serve as the most useful features in machine learning-based cell type classification models. We also propose a statistical strategy for comparing new experiment data to these standardized cell type representations. Conclusion The advent of high-throughput/high-content single cell technologies is leading to an explosion in the number of distinct cell types being identified. It will be critical for the bioinformatics community to develop and adopt data standard conventions that will be compatible with these new technologies and support the data representation needs of the research community. The proposals enumerated here will serve as a useful starting point to address these challenges.
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Affiliation(s)
- Trygve Bakken
- Allen Institute for Brain Science, Seattle, Washington, 98103, USA
| | - Lindsay Cowell
- Department of Clinical Sciences, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd, Dallas, TX, USA
| | - Brian D Aevermann
- J. Craig Venter Institute, 4120 Capricorn Lane, La Jolla, CA, 92037, USA
| | - Mark Novotny
- J. Craig Venter Institute, 4120 Capricorn Lane, La Jolla, CA, 92037, USA
| | - Rebecca Hodge
- Allen Institute for Brain Science, Seattle, Washington, 98103, USA
| | - Jeremy A Miller
- Allen Institute for Brain Science, Seattle, Washington, 98103, USA
| | - Alexandra Lee
- J. Craig Venter Institute, 4120 Capricorn Lane, La Jolla, CA, 92037, USA
| | - Ivan Chang
- J. Craig Venter Institute, 4120 Capricorn Lane, La Jolla, CA, 92037, USA
| | - Jamison McCorrison
- J. Craig Venter Institute, 4120 Capricorn Lane, La Jolla, CA, 92037, USA
| | - Bali Pulendran
- Department of Pathology and Laboratory Medicine, Emory University, 201 Dowman Dr, Atlanta, GA, 30322, USA
| | - Yu Qian
- J. Craig Venter Institute, 4120 Capricorn Lane, La Jolla, CA, 92037, USA
| | - Nicholas J Schork
- J. Craig Venter Institute, 4120 Capricorn Lane, La Jolla, CA, 92037, USA
| | - Roger S Lasken
- J. Craig Venter Institute, 4120 Capricorn Lane, La Jolla, CA, 92037, USA
| | - Ed S Lein
- Allen Institute for Brain Science, Seattle, Washington, 98103, USA
| | - Richard H Scheuermann
- J. Craig Venter Institute, 4120 Capricorn Lane, La Jolla, CA, 92037, USA. .,Department of Pathology, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA.
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Huang X, Maisch J, Nick P. Sensory role of actin in auxin-dependent responses of tobacco BY-2. J Plant Physiol 2017; 218:6-15. [PMID: 28763708 DOI: 10.1016/j.jplph.2017.07.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 07/13/2017] [Accepted: 07/14/2017] [Indexed: 05/09/2023]
Abstract
Polar auxin transport depends on the polar localization of auxin-efflux carriers. The cycling of these carriers between cell interior and plasma membrane depends on actin. The dynamic of actin not only affects auxin transport, but also changes the auxin-responsiveness. To study the potential link between auxin responsiveness and actin dynamics, we investigated developmental responses of the non-transformed BY-2 (Nicotiana tabacum L. cv Bright Yellow 2) cell line and the transgenic BY-2 strain GF11 (stably transformed BY-2 cells with a GFP-fimbrin actin-binding domain 2 construct). The developmental process was divided into three distinct stages: cell cycling, cell elongation and file disintegration. Several phenotypes were measured to monitor the cellular responses to different concentrations of exogenous natural auxin (Indole-3-acetic acid, IAA). We found that auxin stimulated and prolonged the mitotic activity, and delayed the exit from the proliferation phase. However, both responses were suppressed in the GF11 line. At the stationary phase of the cultivation cycle, auxin strongly accelerated the cell file disintegration. Interestingly, it was not suppressed but progressed to a more complete disintegration in the GF11 line. During the cultivation cycle, we also followed the organization of actin in the GF11 line and did not detect any significant difference in actin organization from untreated control or exogenous IAA treatment. Therefore, our findings indicate that the specific differences observed in the GF11 line must be linked with a function of actin that is not structural. It means that there is a sensory role of actin for auxin signaling.
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Affiliation(s)
- Xiang Huang
- Botanical Institute, Karlsruhe Institute of Technology, Fritz-Haber-Weg. 4, Gbd. 30.43, (5. OG), 76131 Karlsruhe, Germany.
| | - Jan Maisch
- Botanical Institute, Karlsruhe Institute of Technology, Fritz-Haber-Weg. 4, Gbd. 30.43, (5. OG), 76131 Karlsruhe, Germany.
| | - Peter Nick
- Botanical Institute, Karlsruhe Institute of Technology, Fritz-Haber-Weg. 4, Gbd. 30.43, (5. OG), 76131 Karlsruhe, Germany.
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18
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Shen H, Zhou T, Hu J. A high-throughput QCM chip configuration for the study of living cells and cell-drug interactions. Anal Bioanal Chem 2017; 409:6463-6473. [PMID: 28889243 DOI: 10.1007/s00216-017-0591-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Revised: 08/14/2017] [Accepted: 08/17/2017] [Indexed: 12/11/2022]
Abstract
In this study, we present a novel design of interference-free, negligible installation-induced stress, suitable for the fabrication of high-throughput quartz crystal microbalance (HQCM) chips. This novel HQCM chip configuration was fabricated using eight independent yet same-batch quartz crystal resonators within a common glass substrate with eight through-holes of diameter slightly larger than that of the quartz resonator. Each quartz resonator's rim was adhered to the inner part of the through-hole via silicone glue to form the rigid (quartz)-soft (silicone)-rigid (glass) structure (RSRS) which effectively eliminates the acoustic couplings among different resonators and largely alleviates the installation-induced stresses. The consistence of the eight resonators was verified by very similar equivalent circuit parameters and very close response slopes to liquid density and viscosity. The HQCM chip was then employed for real-time and continuous monitoring of H9C2 cardiomyoblast adhesions and viscoelastic changes induced by the treatments of two types of drugs: drugs that affect the cytoskeletons, including nocodazole, paclitaxel, and Y-27632, and drugs that affect the contractile properties of the cells: verapamil and different dosages of isoprenaline. Meanwhile, we compared the cytoskeleton affecting drug-induced viscoelastic changes of H9C2 with those of human umbilical vein endothelial cells (HUVECs). The results described here provide the first solution to fabricate HQCM chips that are free from the limitation of resonator number, installation-induced stress, and acoustic interferences among resonators, which should find wide applications in areas of cell phenotype assay, cytotoxicity test, drug evaluation and screening, etc. Graphical abstract Schematic illustration of the principle and configuration of interference-free high-throughput QCM chip to evaluate and screen drugs based on cell viscoelasticity.
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Affiliation(s)
- Haibo Shen
- Cell Mechanics and Biosensing Institute, Hunan Agricultural University, 405 Life Sciences Building, Furong District, Changsha, Hunan, 410128, China.,College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan, 410128, China
| | - Tiean Zhou
- Cell Mechanics and Biosensing Institute, Hunan Agricultural University, 405 Life Sciences Building, Furong District, Changsha, Hunan, 410128, China. .,College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan, 410128, China.
| | - Jiajin Hu
- Cell Mechanics and Biosensing Institute, Hunan Agricultural University, 405 Life Sciences Building, Furong District, Changsha, Hunan, 410128, China.,College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, Hunan, 410128, China
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Shichkin VP, Gorbach OI, Zuieva OA, Grabchenko NI, Aksyonova IA, Todurov BM. Effect of cryopreservation on viability and growth efficiency of stromal-epithelial cells derived from neonatal human thymus. Cryobiology 2017; 78:70-9. [PMID: 28668447 DOI: 10.1016/j.cryobiol.2017.06.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 06/26/2017] [Accepted: 06/27/2017] [Indexed: 11/21/2022]
Abstract
The thymus is the major site of T lymphocyte generation and so is critical for a functional adaptive immune system. Since, thymectomy is a component of neonatal surgery for congenital heart diseases, it provides great potential for collection and storage of thymic tissue for autologous transplantation. However, specific investigation into the optimum parameters for thymic tissue cryopreservation have not been conducted. In this research, we evaluated the effect of different cryoprotective media compositions, which included penetrating (Me2SO, glycerol) and non-penetrating (dextran-40, sucrose, hydroxyethyl starch) components, on the viability and functionality of frozen-thawed human thymic samples to select an optimal cryoprotective medium suitable for long-term storage of thymic tissue and a stromal-epithelial enriched population. Our primary focus was on receiving, low-temperature storage, culturing and evaluation of thymic tissue samples from newborns and infants with congenital heart diseases, who had undergone thymectomy as a part of standard surgical procedure. Thus, this work builds the platform for autologous clinical intervention into the thymus-deficient patients with congenital heart diseases. From our data, we conclude that although there were no significant differences in efficiency of tested cryoprotective media compositions, the combination of Me2SO and dextran-40 compounds was the most suitable for long-term storage both thymic cell suspensions and thymic fragments based on the viability of CD326+ epithelial cells and stromal-epithelial cell monolayer formation.
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Kerr GJ, Veras MA, Kim MK, Séguin CA. Decoding the intervertebral disc: Unravelling the complexities of cell phenotypes and pathways associated with degeneration and mechanotransduction. Semin Cell Dev Biol 2017; 62:94-103. [PMID: 27208724 DOI: 10.1016/j.semcdb.2016.05.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Accepted: 05/17/2016] [Indexed: 12/20/2022]
Abstract
Back pain is the most common cause of pain and disability worldwide. While its etiology remains unknown, it is typically associated with intervertebral disc (IVD) degeneration. Despite the prevalence of back pain, relatively little is known about the specific cellular pathways and mechanisms that contribute to the development, function and degeneration of the IVD. Consequently, current treatments for back pain are largely limited to symptomatic interventions. However, major progress is being made in multiple research directions to unravel the biology and pathology of the IVD, raising hope that effective disease-modifying interventions will soon be developed. In this review, we will discuss our current knowledge and gaps in knowledge on the developmental origin of the IVD, the phenotype of the distinct cell types found within the IVD tissues, molecular targets in IVD degeneration identified using bioinformatics strategies, and mechanotransduction pathways that influence IVD cell fate and function.
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Fu DS, Wen B, Zhang LH, Li RL. TGF-β1 influences polarity characteristics of epithelial cells during process of culture of colon tissues from neonatal rats in vitro. Shijie Huaren Xiaohua Zazhi 2014; 22:4386-4392. [DOI: 10.11569/wcjd.v22.i29.4386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To establish a neonatal rat colon tissue culture system and to analyze the effect of transforming growth factor-β1 (TGF-β1) on polarity characteristics of epithelial cells.
METHODS: Forty-eight hours after 10 ng/mL TGF-β1 was added during the process of culture of colon tissues from neonatal rats, the expression changes of Crumbs3, E-cadherin and alpha smooth muscle actin (α-SMA) in the control group (without TGF-β1) and intervention group (with TGF-β1) were detected by IHC and RT-PCR.
RESULTS: Pavement-like cells could be seen around tissues in the control group after 48 h; Crumbs3 was mainly located at the apical membrane of epithelial cells (P < 0.01); a single layer of α-SMA-positive myofibroblasts along the crypt axis was visible, and α-SMA was lowly expressed in the smooth muscle. However, cells in the intervention group showed different morphology and size; E-cadherin was mainly present in the cytoplasm, and E-cadherin expression was lower than that in the control group (P < 0.05); α-SMA was abundantly expressed in activated fibroblasts (P < 0.01). The mRNA expression of E-cadherin and Crumbs3 in the control group was significantly lower than that in the intervention group (P < 0.05), while the mRNA expression of α-SMA in the intervention group was significantly higher than that in the control group (P < 0.01).
CONCLUSION: TGF-β1 induced down-regulation of Crumbs3 and then dramatically changed the phenotype of epithelial cells.
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Zhong ZM, Chen JT. Phenotypic characterization of ligamentum flavum cells from patients with ossification of ligamentum flavum. Yonsei Med J 2009; 50:375-9. [PMID: 19568599 PMCID: PMC2703760 DOI: 10.3349/ymj.2009.50.3.375] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2008] [Revised: 01/25/2009] [Accepted: 01/25/2009] [Indexed: 11/27/2022] Open
Abstract
PURPOSE The objective of this study was to determine the phenotypic characterization of ligamentum flavum cells from patients with ossification of the ligamentum flavum (OLF). MATERIALS AND METHODS Ligamentum flavum tissues were harvested from OLF and non-OLF patients during surgery. OLF and non-OLF cells were isolated from explant cultures. Cultured cells were analyzed using immunofluorescence staining and reverse transcription-polymerase chain reaction. RESULTS OLF cells exhibited various appearances compared with the typical fibroblast-like morphology of non-OLF cells. Expressions of collagen type I and collagen type III were observed in OLF and non-OLF cells. OLF cells uniquely expressed osteocalcin, which is a marker for osteoblasts, and collagen type II which is a marker for chondrocytes, whereas they were negative in non-OLF cells. CONCLUSION These findings indicate that OLF cells have phenotypic characterization of osteoblasts and chondrocytes which could play a role in the pathophysiology of OLF.
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Affiliation(s)
- Zhao-Ming Zhong
- Department of Orthopedic and Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jian-Ting Chen
- Department of Orthopedic and Spinal Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
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Chen Y, Chen HT, Wu SP, Yue HK, Ma Y, Fang AP. Effects of adefovir dipivoxil on the function of dendritic cells from chronic HBV-infected patients in vitro. Shijie Huaren Xiaohua Zazhi 2008; 16:3759-3764. [DOI: 10.11569/wcjd.v16.i33.3759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To find out effects of adefovir dipivoxil (ADV) on the function of dendritic cells (DCs) from peripheral blood of chronic HBV-infected patients in vitro.
METHODS: Monocytes (Mo) were purified from peripheral blood of healthy volunteers and HBV-infected patients with incubation of granulocyte/macrophage colony stimulating factor (GM-CSF), interleukin-4 (IL-4) and ADV at different concentrations (20, 100, 500 µg/L) added on day 6. DC's morphology was observed under inverted microscopy and the expressions of CD1a, CD83, CD86 and MHC-DR on DCs were analyzed using FACS. The ability to stimulate the proliferation of allogenic T cells by DCs was detected using methyl thiazolyl tetrazolium (MTT). The levels of IL-12 p40+p70 in culture supernatant of DCs were determined using ELISA.
RESULTS: Compared with HBV-infected patient group, a better differentiation of DCs, enhanced proliferation of allogenic T cells and increased secretion of IL-12 p40+p70 were observed in ADV treatment group. The DCs with 100 µg/L ADV had the highest expression of CD1a, CD83, CD86 and MHC-DR, significantly higher than those of DCs without ADV treatment (43.5 ± 5.7 vs 20.6 ± 2.8, 34.6 ± 1.9 vs 16.7 ± 3.4, 40.9 ± 2.8 vs 25.8 ± 6.6, 66.9 ± 5.4 vs 40.7 ± 4.2, all P < 0.05), but all lower than the healthy controls. Differences among the three groups were statistically significant (P < 0.05).
CONCLUSION: ADV enhances the immune ability of DCs from peripheral blood of HBV-infected patients, suggesting that ADV possibly participates in the immune response through modulation of function of DCs and plays an indirect antivirus role.
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Lu GF, Tang FA, Zheng PY, Ma J, Bai JX. In vitro effect of entecavir on the function of dendritic cells derived from chronic hepatitis B patients. Shijie Huaren Xiaohua Zazhi 2007; 15:1292-1296. [DOI: 10.11569/wcjd.v15.i11.1292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the effect of entecavir (ETV) on the function of dendritic cells (DC) derived from patients with chronic hepatitis B (CHB) in vitro.
METHODS: Peripheral blood mononuclear cells were isolated from CHB patients and healthy controls. After proliferation under induction, the cells were cultured by routine method. Then ETV was added to co-incubate with the cells on the 4th day. On day 8, DC were collected for the detection of phenotypes and mixed lymphocytic reactions.
RESULTS: After 8 d of cultivation, the differentiation of DC in the healthy controls was better than that in ETV-treated group, while ETV-treated group had a better differentiation than CHB group. In comparison with those in the healthy controls, the levels of CD1a (35.73 ± 3.12 vs 62.31 ± 5.22), CD80 (28.19 ± 1.64 vs 45.38 ± 3.10), CD83 (22.24 ± 2.14 vs 40.63 ± 7.21) and HLA-DR (36.74 ± 0.98 vs 56.05 ± 3.89) expression were significantly decreased in CHB group (all P < 0.01). However, the levels of CD83 (27.41 ± 9.23 vs 22.24 ± 2.14, P < 0.05), CD80 (32.67 ± 7.82 vs 28.19 ± 1.64, P < 0.05) and HLA-DR (40.84 ± 5.57 vs 36.74 ± 0.98, P < 0.01) expression were markedly increased in ETV-treated group as compared with those in CHB group. The capacity to stimulate proliferation of the allogeneic lymphocytes in ETV-treated group was higher than that in CHB group (1.53 ± 0.09 vs 1.45 ± 0.12, P < 0.05).
CONCLUSION: Entecavir can enhance the biological activity of DC derived from CHB patients and play an indirect antivirus function by regulating the host's immune system.
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