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Identifying susceptibility genes for essential hypertension by transcriptome-wide association study. Biochem Biophys Rep 2022; 32:101387. [DOI: 10.1016/j.bbrep.2022.101387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 10/29/2022] [Accepted: 11/12/2022] [Indexed: 11/22/2022] Open
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Kim HS, Kim HY. Hypertensive effects of transforming growth factor-β1 in vascular smooth muscles cells from spontaneously hypertensive rats are mediated by sulfatase 2. Cytokine 2021; 150:155754. [PMID: 34808537 DOI: 10.1016/j.cyto.2021.155754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 10/06/2021] [Accepted: 10/25/2021] [Indexed: 11/18/2022]
Abstract
Extracellular sulfatases (sulfatase 1 and sulfatase 2) mediate up- or down-regulatory effects of cytokines on angiotensin II (Ang II)-induced expression of hypertensive mediators in hypertensive cells. The overproduction of transforming growth factor-β1 (TGF-β1) is associated with chronic hypertension. In this study, we examined the role of extracellular sulfatases on TGF-β1-induced effects associated with the expression of mediators related to hypertension in vascular smooth muscle cells (VSMCs) from spontaneously hypertensive rats (SHR). First, TGF-β1 increased the expression of 12-lipoxygenase (12-LO) and endothelin-1 (ET-1), inhibited dimethylarginine dimethylaminohydrolase-1 (DDAH-1) expression and showed additive effects on Ang II-induced 12-LO and ET-1 expression as well as Ang II-induced inhibition of DDAH-1 expression in SHR VSMCs. However, it had no effect on the expression of 12-LO, ET-1, and DDAH-1 in VSMCs from normotensive Wistar Kyoto rats. Downregulation of sulfatase 2 (Sulf2) inhibited all of these hypertensive effects caused by TGF-β1, while sulfatase 1 (Sulf1) had no effect on these events in SHR VSMCs. All these hypertensive effects of TGF-β1 were dependent on the Ang II subtype 1 receptor (AT1 R) pathway, and not on Ang II subtype 2 receptor (AT2 R). In addition, downregulation of Sulf2 inhibited the expression of TGF-β1-induced AT1 R and the additive effect of TGF-β1 on Ang II-induced AT1 R expression. Additionally, downregulation of Sulf2, but not Sulf1, abrogated TGF-β1-induced inhibition of AMP-activated protein kinase (AMPK) activation and the additive effect of TGF-β1 on Ang II-induced inhibition of AMPK activation via the AT1 R pathway. Moreover, TGF-β1-induced VSMCs proliferation and the additive effect of TGF-β1 on Ang II-induced VSMCs proliferation were abrogated in Sulf2 siRNA-transfected SHR VSMCs, while these effects were maintained in Sulf1 siRNA-transfected SHR VSMCs. The hypertensive effects of TGF-β1 through the AT1 R pathway were mainly dependent on Sulf2 activity in SHR VSMCs. Taken together, these results suggest that Sulf2, but not Sulf1, plays a major role in mediating the increased effects of TGF-β1 in hypertensive VSMCs.
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Affiliation(s)
- Hee Sun Kim
- Department of Microbiology College of Medicine, Yeungnam University, Daegu, Republic of Korea.
| | - Hye Young Kim
- Department of Microbiology College of Medicine, Yeungnam University, Daegu, Republic of Korea
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Chao CT, Yeh HY, Tsai YT, Chiang CK, Chen HW. A combined microRNA and target protein-based panel for predicting the probability and severity of uraemic vascular calcification: a translational study. Cardiovasc Res 2021; 117:1958-1973. [PMID: 32866261 DOI: 10.1093/cvr/cvaa255] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 07/24/2020] [Accepted: 08/25/2020] [Indexed: 12/17/2022] Open
Abstract
AIMS Vascular calcification (VC) increases the future risk of cardiovascular events in uraemic patients, but effective therapies are still unavailable. Accurate identification of those at risk of developing VC using pathogenesis-based biomarkers is of particular interest and may facilitate individualized risk stratification. We aimed to uncover microRNA (miRNA)-target protein-based biomarker panels for evaluating uraemic VC probability and severity. METHODS AND RESULTS We created a three-tiered in vitro VC model and an in vivo uraemic rat model receiving high phosphate diet to mimic uraemic VC. RNAs from the three-tiered in vitro and in vivo uraemic VC models underwent miRNA and mRNA microarray, with results screened for differentially expressed miRNAs and their target genes as biomarkers. Findings were validated in original models and additionally in an ex vivo VC model and human cells, followed by functional assays of identified miRNAs and target proteins, and tests of sera from end-stage renal disease (ESRD) and non-dialysis-dependent chronic kidney disease (CKD) patients without and with VC. Totally 122 down-regulated and 119 up-regulated miRNAs during calcification progression were identified initially; further list narrowing based on miRNA-mRNA pairing, anti-correlation, and functional enrichment left 16 and 14 differentially expressed miRNAs and mRNAs. Levels of four miRNAs (miR-10b-5p, miR-195, miR-125b-2-3p, and miR-378a-3p) were shown to decrease throughout all models tested, while one mRNA (SULF1, a potential target of miR-378a-3p) exhibited the opposite trend concurrently. Among 96 ESRD (70.8% with VC) and 59 CKD patients (61% with VC), serum miR-125b2-3p and miR-378a-3p decreased with greater VC severity, while serum SULF1 levels increased. Adding serum miR-125b-2-3p, miR-378a-3p, and SULF1 into regression models for VC substantially improved performance compared to using clinical variables alone. CONCLUSION Using a translational approach, we discovered a novel panel of biomarkers for gauging the probability/severity of uraemic VC based on miRNAs/target proteins, which improved the diagnostic accuracy.
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MESH Headings
- Adult
- Aged
- Aged, 80 and over
- Animals
- Biomarkers/blood
- Cells, Cultured
- Disease Models, Animal
- Female
- Gene Expression Profiling
- Gene Regulatory Networks
- Humans
- Male
- MicroRNAs/genetics
- MicroRNAs/metabolism
- Middle Aged
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/pathology
- Organ Culture Techniques
- Predictive Value of Tests
- Protein Interaction Maps
- Proteome
- Proteomics
- Rats, Sprague-Dawley
- Risk Assessment
- Risk Factors
- Severity of Illness Index
- Signal Transduction
- Sulfotransferases/blood
- Transcriptome
- Translational Research, Biomedical
- Uremia/complications
- Uremia/genetics
- Uremia/metabolism
- Vascular Calcification/etiology
- Vascular Calcification/genetics
- Vascular Calcification/metabolism
- Vascular Calcification/pathology
- Rats
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Affiliation(s)
- Chia-Ter Chao
- Division of Nephrology, Department of Medicine, National Taiwan University Hospital Bei-Hu Branch, No. 87, Neijiang Street, Wanhua District, Taipei 10845, Taiwan
- Graduate Institute of Toxicology, National Taiwan University, College of Medicine, No.1, Section 4, Ren-Ai Road, Zhongzheng District, Taipei 10051, Taiwan
- Department of Internal Medicine, National Taiwan University College of Medicine, No.1, Section 4, Ren-Ai Road, Zhongzheng District, Taipei 10051, Taiwan
| | - Hsiang-Yuan Yeh
- School of Big Data Management, Soochow University, No.70, Linxi Road, Shilin District, Taipei 11102, Taiwan
| | - You-Tien Tsai
- Division of Nephrology, Department of Medicine, National Taiwan University Hospital Bei-Hu Branch, No. 87, Neijiang Street, Wanhua District, Taipei 10845, Taiwan
| | - Chih-Kang Chiang
- Graduate Institute of Toxicology, National Taiwan University, College of Medicine, No.1, Section 4, Ren-Ai Road, Zhongzheng District, Taipei 10051, Taiwan
- Department of Integrative Diagnostics and Therapeutics, National Taiwan University Hospital, No. 7, Zhongshan South Road, Zhongzheng District, Taipei 10002, Taiwan
| | - Huei-Wen Chen
- Graduate Institute of Toxicology, National Taiwan University, College of Medicine, No.1, Section 4, Ren-Ai Road, Zhongzheng District, Taipei 10051, Taiwan
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Kim HY, Kim HS. Sulfatase 1 mediates IL-10-induced dimethylarginine dimethylaminohydrolase-1 expression and antiproliferative effects in vascular smooth muscle cells of spontaneously hypertensive rats. Cytokine 2021; 137:155344. [PMID: 33128921 DOI: 10.1016/j.cyto.2020.155344] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 10/08/2020] [Accepted: 10/08/2020] [Indexed: 12/18/2022]
Abstract
The extracellular sulfatases (exSulfs) sulfatase 1 (Sulf1) and sulfatase 2 (Sulf2) are well-known regulators of cell signaling and metabolism. In addition, exSulfs mediate the up- or downregulatory effects of cytokines on angiotensin II (Ang II)-induced expression of hypertensive mediators in vascular smooth muscle cells (VSMC) from spontaneously hypertensive rats (SHRs). Previously, we demonstrated that interleukin-10 (IL-10)-induced dimethylarginine dimethylaminohydrolase-1 (DDAH-1) expression was mediated by Ang II subtype 2 receptor (AT2 R) and AMP-activated protein kinase (AMPK) activation, and that IL-10-mediated inhibition of Ang II-induced proliferation of SHRs VSMC was partially associated with DDAH-1. In this study, we examined the effects of exSulfs on IL-10-induced DDAH-1 expression, abrogation of Ang II-induced DDAH-1 downregulation, and inhibition of Ang II-induced proliferation of SHRs VSMC. IL-10-induced DDAH-1 expression and abrogation of Ang II-induced DDAH-1 downregulation were attenuated in Sulf1 siRNA-transfected SHRs VSMC. However, Sulf2 did not affect IL-10-induced DDAH-1 expression and abrogation of Ang II-induced DDAH-1 downregulation. Downregulation of Sulf1 inhibited IL-10-induced AT2 R expression and the synergistic effects of IL-10 on Ang II-induced AT2 R expression. Additionally, Sulf1 downregulation inhibited IL-10-induced AMPK activity and abrogation of Ang II-induced decrease in AMPK activity. Moreover, the IL-10-mediated inhibition of Ang II-induced proliferation was not detected in Sulf1 siRNA-transfected SHRs VSMC; IL-10-mediated inhibition of Ang II-induced VSMC proliferation was mediated via the AT2 R pathway and AMPK activation. Specifically, IL-10-induced DDAH-1 expression, abrogation of Ang II-induced DDAH-1 downregulation, and inhibition of Ang II-induced proliferation, which is mediated by the AT2 R pathway and AMPK activation, are mainly mediated by Sulf1 activity in SHRs VSMC. These results suggest that Sulf1, and not Sulf2, mediates the IL-10-induced inhibition of Ang II-induced hypertensive effects in SHRs VSMC.
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MESH Headings
- Amidohydrolases/genetics
- Amidohydrolases/metabolism
- Angiotensin II/pharmacology
- Animals
- Blotting, Western
- Cell Proliferation/drug effects
- Cells, Cultured
- Gene Expression Regulation, Enzymologic/drug effects
- Interleukin-10/pharmacology
- Male
- Muscle, Smooth, Vascular/cytology
- Myocytes, Smooth Muscle/drug effects
- RNA Interference
- Rats, Inbred SHR
- Rats, Inbred WKY
- Receptor, Angiotensin, Type 2/metabolism
- Reverse Transcriptase Polymerase Chain Reaction
- Signal Transduction/drug effects
- Sulfotransferases/genetics
- Sulfotransferases/metabolism
- Rats
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Affiliation(s)
- Hye Young Kim
- Department of Microbiology, College of Medicine, Yeungnam University, Daegu, Republic of Korea
| | - Hee Sun Kim
- Department of Microbiology, College of Medicine, Yeungnam University, Daegu, Republic of Korea.
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Kim HY, Jeong DW, Kim HS. Sulfatase 2 mediates, partially, the expression of endothelin-1 and the additive effect of Ang II-induced endothelin-1 expression by CXCL8 in vascular smooth muscle cells from spontaneously hypertensive rats. Cytokine 2019; 114:98-105. [DOI: 10.1016/j.cyto.2018.11.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 11/01/2018] [Accepted: 11/08/2018] [Indexed: 01/15/2023]
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