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Cai C, Weng Y, Wang X, Wu Y, Li Y, Wang P, Zeng C, Yang Z, Jia B, Tang L, Chen L. Single-cell RNA landscape of cell heterogeneity and immune microenvironment in ligation-induced vascular remodeling in rat. Atherosclerosis 2023; 377:1-11. [PMID: 37343431 DOI: 10.1016/j.atherosclerosis.2023.06.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 06/08/2023] [Accepted: 06/08/2023] [Indexed: 06/23/2023]
Abstract
BACKGROUND AND AIMS Vascular remodeling is a common pathological basis for cardiovascular diseases. Although both immune and non-immune cells have been suggested to contribute to this process, the complex cellular heterogeneity and intercellular interactions remain largely uncharacterized. METHODS AND RESULTS In this study, we simulated early and late vascular remodeling by ligating the rat carotid artery for 1 week and 4 weeks, respectively. Using single-cell RNA-sequencing, we characterized gene expression signatures and driver signals of major cell types involved in vascular remodeling. Focused analysis revealed a novel sub-population of Selenbp1hi smooth muscle cells (SMCs) associated with vascular remodeling. Results of intercellular communication analyses predicted several ligand-receptor pairs between immune cells with SMCs and endothelial cells (ECs), implicating SMCs apoptosis and repair, ECs aging and inflammatory responses. CONCLUSIONS We present a comprehensive single-cell atlas of vascular cells in early and late stages of ligated rat carotid artery, providing valuable insights into the understanding of the initiation and progression of vascular remodeling.
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Affiliation(s)
- Changhong Cai
- Department of Cardiology, Fujian Heart Medical Center, Fujian Institute of Coronary Heart Disease, Fujian Medical University Union Hospital, Fuzhou, 350001, China
| | - Yingzheng Weng
- Department of Cardiology, Zhejiang Hospital, Hangzhou, 310013, China; Department of Medicine, The Second College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, 310013, China
| | - Xihao Wang
- Department of Medicine, The Second College of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, 310013, China
| | - Yonghui Wu
- Department of Cardiology, Lishui Hospital of Zhejiang University, The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui Municipal Central Hospital, Lishui, 323000, China
| | - Ya Li
- Department of Cardiology, Lishui Hospital of Zhejiang University, The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui Municipal Central Hospital, Lishui, 323000, China
| | - Peipei Wang
- Department of Cardiology, Lishui Hospital of Zhejiang University, The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui Municipal Central Hospital, Lishui, 323000, China
| | - Chunlai Zeng
- Department of Cardiology, Lishui Hospital of Zhejiang University, The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui Municipal Central Hospital, Lishui, 323000, China
| | - Zhouxin Yang
- Zhejiang Provincial Key Lab of Geriatrics, Department of Geriatrics, Zhejiang Hospital, Hangzhou, 310013, China
| | - Bingbing Jia
- Zhejiang Provincial Key Lab of Geriatrics, Department of Geriatrics, Zhejiang Hospital, Hangzhou, 310013, China.
| | - Lijiang Tang
- Department of Cardiology, Zhejiang Hospital, Hangzhou, 310013, China.
| | - Lianglong Chen
- Department of Cardiology, Fujian Heart Medical Center, Fujian Institute of Coronary Heart Disease, Fujian Medical University Union Hospital, Fuzhou, 350001, China.
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Lee YM, Kim S, Park RY, Kim YS. Hepatitis B Virus-X Downregulates Expression of Selenium Binding Protein 1. Viruses 2020; 12:v12050565. [PMID: 32443734 PMCID: PMC7291177 DOI: 10.3390/v12050565] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 05/15/2020] [Accepted: 05/18/2020] [Indexed: 02/06/2023] Open
Abstract
Selenium binding protein 1 (SELENBP1) has been known to be reduced in various types cancer, and epigenetic change is shown to be likely to account for the reduction of SELNEBP1 expression. With cDNA microarray comparative analysis, we found that SELENBP1 is markedly decreased in hepatitis B virus-X (HBx)-expressing cells. To clarify the effect of HBx on SELENBP1 expression, we compared the expression levels of SELENBP1 mRNA and protein by semi-quantitative RT-PCR, Northern blot, and Western blot. As expected, SELENBP1 expression was shown to be reduced in cells expressing HBx, and reporter gene analysis showed that the SELENBP1 promoter is repressed by HBx. In addition, the stepwise deletion of 5′ flanking promoter sequences resulted in a gradual decrease in basal promoter activity and inhibition of SELENBP1 expression by HBx. Moreover, immunohistochemistry on tissue microarrays containing 60 pairs of human liver tissue showed decreased intensity of SELENBP1 in tumor tissues as compared with their matched non-tumor liver tissues. Taken together, our findings suggest that inhibition of SELENBP1 expression by HBx might act as one of the causes in the development of hepatocellular carcinoma caused by HBV infection.
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Affiliation(s)
- Young-Man Lee
- Dasan Undergraduate College, Ajou University, Suwon 16499, Korea;
| | - Soojin Kim
- Graduate School of New Drug Discovery & Development, Chungnam National University, Daejeon 34134, Korea;
| | - Ran-Young Park
- Department of Smart Food & Drugs, Inje University, Gimhae 50834, Korea;
| | - Yeon-Soo Kim
- Graduate School of New Drug Discovery & Development, Chungnam National University, Daejeon 34134, Korea;
- Correspondence: ; Tel.: +82-42-821-8631
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Selenium-Binding Protein 1 in Human Health and Disease. Int J Mol Sci 2018; 19:ijms19113437. [PMID: 30400135 PMCID: PMC6274749 DOI: 10.3390/ijms19113437] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 10/05/2018] [Accepted: 10/31/2018] [Indexed: 12/19/2022] Open
Abstract
Selenium-binding protein 1 (SBP1) is a highly conserved protein that covalently binds selenium. SBP1 may play important roles in several fundamental physiological functions, including protein degradation, intra-Golgi transport, cell differentiation, cellular motility, redox modulation, and the metabolism of sulfur-containing molecules. SBP1 expression is often reduced in many cancer types compared to the corresponding normal tissues and low levels of SBP1 are frequently associated with poor clinical outcome. In this review, the transcriptional regulation of SBP1, the different physiological roles reported for SBP1, as well as the implications of SBP1 function in cancer and other diseases are presented.
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Zhao C, Zeng H, Wu RTY, Cheng WH. Loss of Selenium-Binding Protein 1 Decreases Sensitivity to Clastogens and Intracellular Selenium Content in HeLa Cells. PLoS One 2016; 11:e0158650. [PMID: 27404728 PMCID: PMC4942091 DOI: 10.1371/journal.pone.0158650] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Accepted: 06/20/2016] [Indexed: 12/27/2022] Open
Abstract
Selenium-binding protein 1 (SBP1) is not a selenoprotein but structurally binds selenium. Loss of SBP1 during carcinogenesis usually predicts poor prognosis. Because genome instability is a hallmark of cancer, we hypothesize that SBP1 sequesters cellular selenium and sensitizes cancer cells to DNA-damaging agents. To test this hypothesis, we knocked down SBP1 expression in HeLa cervical cancer cells by employing a short hairpin RNA (shRNA) approach. Reduced sensitivity to hydrogen peroxide, paraquat and camptothecin, reactive oxygen species content, and intracellular retention of selenium after selenomethionine treatment were observed in SBP1 shRNA HeLa cells. Results from Western analyses showed that treatment of HeLa cells with selenomethionine resulted in increased SBP1 protein expression in a dose-dependent manner. Knockdown of SBP1 rendered HeLa cells increased expression of glutathione peroxidase-1 but not glutathione peroxidase-4 protein levels and accelerated migration from a wound. Altogether, SBP1 retains supplemental selenium and sensitizes HeLa cancer cells to clastogens, suggesting a new cancer treatment strategy by sequestering selenium through SBP1.
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Affiliation(s)
- Changhui Zhao
- Department of Food Quality and Safety, College of Food Science and Engineering, Jilin University, Changchun, Jilin Province, 130062, China
- Department of Nutrition and Food Science, University of Maryland, College Park, Maryland 20742, United States of America
| | - Huawei Zeng
- United States Department of Agriculture, Agricultural Research Service, Grand Forks Human Nutrition Research Center, Grand Forks, North Dakota 58202, United States of America
| | - Ryan T. Y. Wu
- Department of Nutrition and Food Science, University of Maryland, College Park, Maryland 20742, United States of America
| | - Wen-Hsing Cheng
- Department of Food Science, Nutrition & Health Promotion, Mississippi State University, Mississippi State, Mississippi 39762, United States of America
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Giusti L, Iacconi P, Valle YD, Ciregia F, Ventroni T, Donadio E, Giannaccini G, Chiarugi M, Torregrossa L, Proietti A, Basolo F, Lucacchini A. A proteomic profile of washing fluid from the colorectal tract to search for potential biomarkers of colon cancer. MOLECULAR BIOSYSTEMS 2012; 8:1088-99. [DOI: 10.1039/c2mb05394b] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Bunnag S, Einecke G, Reeve J, Jhangri GS, Mueller TF, Sis B, Hidalgo LG, Mengel M, Kayser D, Kaplan B, Halloran PF. Molecular correlates of renal function in kidney transplant biopsies. J Am Soc Nephrol 2009; 20:1149-60. [PMID: 19389845 DOI: 10.1681/asn.2008080863] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
The molecular changes in the parenchyma that reflect disturbances in the function of kidney transplants are unknown. We studied the relationships among histopathology, gene expression, and renal function in 146 human kidney transplant biopsies performed for clinical indications. Impaired function (estimated GFR) correlated with tubular atrophy and fibrosis but not with inflammation or rejection. Functional deterioration before biopsy correlated with inflammation and tubulitis and was greater in cases of rejection. Microarray analysis revealed a correlation between impaired renal function and altered expression of sets of transcripts consistent with tissue injury but not with those consistent with cytotoxic T cell infiltration or IFN-gamma effects. Multivariate analysis of clinical variables, histologic lesions, and transcript sets confirmed that expression of injury-related transcript sets independently correlated with renal function. Analysis of individual genes confirmed that the transcripts with the greatest positive or negative correlations with renal function were those suggestive of response to injury and parenchymal dedifferentiation not inflammation. We defined new sets of genes based on individual transcripts that correlated with renal function, and these highly correlated with the previously developed injury sets and with atrophy and fibrosis. Thus, in biopsies performed for clinical reasons, functional disturbances are reflected in transcriptome changes representing tissue injury and dedifferentiation but not the inflammatory burden.
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Affiliation(s)
- Sakarn Bunnag
- Department of Medicine, Division of Nephrology & Immunology, University of Alberta, Edmonton, Alberta, Canada
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Li T, Yang W, Li M, Byun DS, Tong C, Nasser S, Zhuang M, Arango D, Mariadason JM, Augenlicht LH. Expression of selenium-binding protein 1 characterizes intestinal cell maturation and predicts survival for patients with colorectal cancer. Mol Nutr Food Res 2009; 52:1289-99. [PMID: 18435490 DOI: 10.1002/mnfr.200700331] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
To identify candidate genes involved in the development of colorectal cancer, we used cDNA microarrays to analyze gene expression differences between human colorectal tumors and paired adjacent normal mucosa. We identified approximately 3.5-fold significant downregulation of selenium-binding protein 1 (SBP1) in colorectal tumors compared to normal mucosa (p = 0.003). Importantly, stage III colorectal cancer patients with low tumor-SBP1 expression had significantly shorter disease-free and overall survival as compared with those patients with high tumor-SBP1 expression (p = 0.04 and 0.03, respectively). We further characterized the role of SBP1 in colorectal cancer in vivo and in vitro. In normal tissue, SBP1 was maximally expressed in terminally differentiated epithelial cells on the luminal surface of crypts in the large intestine. Consistent with this in vivo localization, SBP1 was upregulated during in vitro colonic cell differentiation along the absorptive (Caco-2) and secretory (HT29 Clones 16E and 19A) cell lineages. Downregulation (approximately 50%) of SBP1 expression by small interfering RNA in colonic cancer cells was associated with reduced expression of another epithelial differentiation marker, carcinoembryonic antigen (CEA), although PCNA and p21(WAF1/cip1 )expression were not altered. These data demonstrate that higher expression of SBP1 is associated with differentiation of the normal colonic epithelia and may be a positive prognostic factor for survival in stage III colorectal carcinoma.
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Affiliation(s)
- Tianhong Li
- Department of Pathology, University of Illinois at Chicago, Chicago, IL, USA.
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Golovan SP, Hakimov HA, Verschoor CP, Walters S, Gadish M, Elsik C, Schenkel F, Chiu DK, Forsberg CW. Analysis of Sus scrofa liver proteome and identification of proteins differentially expressed between genders, and conventional and genetically enhanced lines. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2008; 3:234-42. [DOI: 10.1016/j.cbd.2008.05.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2008] [Revised: 05/13/2008] [Accepted: 05/14/2008] [Indexed: 12/20/2022]
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Stastna M, Behrens A, Noguera G, Herretes S, McDonnell P, Van Eyk JE. Proteomics of the aqueous humor in healthy New Zealand rabbits. Proteomics 2008; 7:4358-75. [PMID: 18040985 DOI: 10.1002/pmic.200700300] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
There are several physiological roles postulated for aqueous humor, a liquid located in the anterior and posterior chamber of the eye, such as maintenance of the intraocular pressure, provision of nutrients, and removal of metabolic waste from neighboring tissues and provision of an immune response and protection during inflammation and infection. To link these function to specific or classes of proteins, identification of the aqueous humor proteome is essential. Aqueous humor obtained from healthy New Zealand white rabbits was analyzed using three synergistic protein separation methods: 1-D gel electrophoresis, 2-DE, and 1-DLC (RPLC) prior to protein identification by MS. As each of these separation methods separates intact proteins based on different physical properties (pIs, molecular weights, hydrophobicity, solubility, etc.) the proteome coverage is expanded. This was confirmed, since overlap between all three separation technologies was only about 8.2% with many proteins found uniquely by a single method. Although the most dominant protein presented in normal aqueous humor is albumin, by using this extensive separation/MS strategy, additional proteins were identified in total amount of 98 nonredundant proteins (plus an additional ten proteins for consideration). This expands the current protein identifications by approximately 65%. The aqueous humor proteome comprises a specific selection of cellular and plasma based proteins and can almost exclusively be divided into four functional groups: cell-cell interactions/wound healing, proteases and protease inhibitors, antioxidant protection, and antibacterial/anti-inflammatory proteins.
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Affiliation(s)
- Miroslava Stastna
- Department of Medicine, Johns Hopkins Bayview Proteomics Center, Johns Hopkins University, Baltimore, MD 21224, USA.
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Diskin CJ. Multiple Mechanisms for Abnormal Selenium Levels and Vascular Disease in Renal Failure. Am J Kidney Dis 2006; 47:924; author reply 924-5. [PMID: 16632036 DOI: 10.1053/j.ajkd.2006.02.187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2006] [Accepted: 02/15/2006] [Indexed: 11/11/2022]
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Diskin CJ. Selenium binding proteins, renal failure, graft rejection and intimal hyperplasia: Which are causes and which are effects? Am J Transplant 2005; 5:2592; author reply 2593. [PMID: 16162215 DOI: 10.1111/j.1600-6143.2005.01030.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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