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Li H, Zhao JL, Zhang YM, Han SX. Inhibitory effects of candesartan on KCa3.1 potassium channel expression and cell culture and proliferation in peripheral blood CD4 +T lymphocytes in Kazakh patients with hypertension from the Xinjiang region. Clin Exp Hypertens 2018; 40:303-311. [PMID: 29388859 DOI: 10.1080/10641963.2017.1377212] [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] [Indexed: 10/18/2022]
Abstract
BACKGROUND AND AIM Increasing evidence confirms that potassium channels are essential for lymphocyte activation, suggesting an involvement in the development of hypertension. Moreover, chronic inflammation is regarded as a direct or indirect manifestation of hypertension, highlighting the theoretical mechanisms. In this study, we investigated changes in KCa3.1 potassium channel expression in the blood of hypertensive and healthy Kazakh people in north-west China. METHODS Flow cytometry technology was used for T-lymphocyte subtype analysis. Changes in the messenger RNA and protein expression of the KCa3.1 potassium channel in CD4+ T lymphocytes were detected using real-time quantitative polymerase chain reaction and western blots, using CD4+ T-cell samples from hypertensive Kazakh patients divided into candesartan and TRAM-34 treatment groups, and healthy case controls. Peripheral blood CD4+ T lymphocytes were activated and proliferated in vitro and then incubated for 0, 24, and 48 h under various treatment conditions. Changes in CD4+ T-lymphocytic proliferation were determined using Cell Counting Kit-8 and electron microscope photography. RESULTS Expression of KCa3.1 was significantly higher in the hypertensive patients than in the controls (p < 0.05). Compared with the healthy group, Kazakh hypertensive patients had a reduced proportion of CD4+ T lymphocytes (p < 0.05).Candesartan and TRAM-34 intervention for 24 h and 48 h inhibited the expression of Kv1.3 and KCa3.1 at mRNA and protein level (p < 0.05). CONCLUSIONS Increase in functional KCa3.1 channels expressed in CD4+ T lymphocytes of Kazakh patients with hypertension was blocked by candesartan, providing theoretical support for hypertension treatment at the cellular ion channel level. Candesartan may potentially regulate hypertensive inflammatory responses by inhibiting T-lymphocytic proliferation and KCa3.1 potassium channel expression in CD4 + T lymphocytes.
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Affiliation(s)
- Hui Li
- a Department of Internal Medicine (VIP) Unit 1 , The First Affiliated Hospital of Xinjiang Medical University , Urimuqi , China
| | - Jun-Ling Zhao
- b Graduate School , Xinjang Medical University , Urumqi , China
| | - Yuan-Ming Zhang
- c The Heart Center , The First Affiliated Hospital of Xinjiang Medical University , Urumqi , Xinjiang , Research direction: The basic and clinical research of hypertesion
| | - Su-Xia Han
- d Department of Cardiology , The Fifth Affiliated Hospital of Xinjiang Medical University , Urumqi , Xinjiang , Research direction: The basic and clinical research of coronary heart disease
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Cui XB, Tian YX, Chun CP, Peng H, Liu CX, Yang L, Hu JM, Xin HH, Chen X, Wang N, Wei YT, Yin LB, Chen YZ, Li F. Genome-wide screening for genomic aberrations in Kazakh patients with esophageal squamous cell cancer by comparative genomic hybridization. Int J Clin Exp Pathol 2018; 11:427-437. [PMID: 31938128 PMCID: PMC6957937] [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] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Accepted: 11/16/2017] [Indexed: 06/10/2023]
Abstract
Multiple chromosome aberrations are responsible for tumorigenesis of esophagus squamous cell carcinoma (ESCC). To characterize genetic alterations by comparative genomic hybridization (CGH) and their relation to ESCC, We enrolled 54 members with ESCC from Kazakh's patients. We found that the deletions of 3p (P = 0.032), 17p (P = 0.004), 22q (P = 0.000) and gains of 5p (P = 0.000), 11q (P = 0.000) were significantly correlated with the location of tumors. Losses of 1p (P = 0.005), 3p (P = 0.006), 22q (P = 0.024) and gains of 3q (P = 0.043), 8q (P = 0.038), 18q (P = 0.046) were also found more frequently in patients with larger diameter disease. The loss of 19q (P = 0.005) and gains of l3q (P = 0.045), 18p (P = 0.018) were significantly correlated with pathologic grade. The gain of 7p (P = 0.009) and deletion of 19q (P = 0.018) were seen more frequently in patients with Grade III-IV tumors. Chromosome amplifications in ESCC at 1q (P = 0.008), 7p (P = 0.008), 8q (P = 0.018) and deletions at 3p (P = 0.021), 11q (P = 0.002), 17p (P = 0.012) were related to lymph node metastasis; the gains of 1q (P = 0.026) and 6q (P = 0.017) and the loss of 11q (P = 0.001) were significant in different isoforms of HPV infection. We identified some chromosomes in which the genes were related to the tumorgenesis of ESCC, which may be a theme for future investigation.
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Affiliation(s)
- Xiao-Bin Cui
- Key Laboratory for Xinjiang Endemic and Ethnic Diseases, Department of Pathology, School of Medicine, Shihezi UniversityShihezi, Xinjiang, China
| | - Yan-Xia Tian
- Key Laboratory for Xinjiang Endemic and Ethnic Diseases, Department of Pathology, School of Medicine, Shihezi UniversityShihezi, Xinjiang, China
| | - Cai-Pu Chun
- Department of Pathology, Nongyishi HospitalAkesu, China
| | - Hao Peng
- Key Laboratory for Xinjiang Endemic and Ethnic Diseases, Department of Pathology, School of Medicine, Shihezi UniversityShihezi, Xinjiang, China
| | - Chun-Xia Liu
- Key Laboratory for Xinjiang Endemic and Ethnic Diseases, Department of Pathology, School of Medicine, Shihezi UniversityShihezi, Xinjiang, China
| | - Lan Yang
- Key Laboratory for Xinjiang Endemic and Ethnic Diseases, Department of Pathology, School of Medicine, Shihezi UniversityShihezi, Xinjiang, China
| | - Jian-Ming Hu
- Key Laboratory for Xinjiang Endemic and Ethnic Diseases, Department of Pathology, School of Medicine, Shihezi UniversityShihezi, Xinjiang, China
| | - Hua-Hua Xin
- Key Laboratory for Xinjiang Endemic and Ethnic Diseases, Department of Pathology, School of Medicine, Shihezi UniversityShihezi, Xinjiang, China
| | - Xi Chen
- Key Laboratory for Xinjiang Endemic and Ethnic Diseases, Department of Pathology, School of Medicine, Shihezi UniversityShihezi, Xinjiang, China
| | - Ning Wang
- Key Laboratory for Xinjiang Endemic and Ethnic Diseases, Department of Pathology, School of Medicine, Shihezi UniversityShihezi, Xinjiang, China
| | - Yu-Tao Wei
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital, School of Medicine, Shihezi UniversityShihezi, Xinjiang, China
| | - Lai-Bo Yin
- Department of Thoracic and Cardiovascular Surgery, The First Affiliated Hospital, School of Medicine, Shihezi UniversityShihezi, Xinjiang, China
| | - Yun-Zhao Chen
- Key Laboratory for Xinjiang Endemic and Ethnic Diseases, Department of Pathology, School of Medicine, Shihezi UniversityShihezi, Xinjiang, China
| | - Feng Li
- Key Laboratory for Xinjiang Endemic and Ethnic Diseases, Department of Pathology, School of Medicine, Shihezi UniversityShihezi, Xinjiang, China
- Department of Pathology, Medical Research Center, Beijing Chaoyang Hospital, Capital Medical UniversityBeijing, China
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Huang SS, Zhang QB, Yuan QY, He SL, Zhang YM. Inhibitory effects of telmisartan on culture and proliferation of and Kv1.3 potassium channel expression in peripheral blood CD4+ T lymphocytes from Xinjiang Kazakh patients with hypertension. J Renin Angiotensin Aldosterone Syst 2016; 17:1470320316674876. [PMID: 27765883 PMCID: PMC5843919 DOI: 10.1177/1470320316674876] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Accepted: 09/16/2016] [Indexed: 11/15/2022] Open
Abstract
INTRODUCTION Activation of T lymphocytes, for which potassium channels are essential, is involved in the development of hypertension. In this study, we explored the inhibitory effects of telmisartan on the culture and proliferation of and Kv1.3 potassium channel expression in peripheral blood CD4+ T lymphocytes derived from Xinjiang Kazakh patients with hypertension. METHODS CD4+ T-cell samples from hypertensive Kazakh patients and healthy Kazakh people were divided into healthy control, case control, telmisartan, and 4-aminopytidine groups. Changes in the expression levels of interleukin (IL)-6 and IL-17 in the blood of the healthy control and case control subjects were detected by enzyme-linked immunosorbent assay. Peripheral blood CD4+ T lymphocytes were first activated and proliferated in vitro and then incubated for 0, 24, and 48 h under various treatment conditions. Thereafter, changes in CD4+ T-lymphocytic proliferation were determined using Cell Counting Kit-8 and microscope photography. Changes in messenger RNA (mRNA) and protein expression of the Kv1.3 potassium channel in CD4+ T lymphocytes were detected using real-time quantitative polymerase chain reaction and Western blots, respectively. RESULTS The IL-6 and IL-17 expression levels were significantly higher in the blood of the hypertensive Kazakh patients than in the healthy Kazakh people. Telmisartan inhibited T-lymphocytic proliferation, as well as the mRNA and protein expression of the Kv1.3 potassium channel in CD4+ T lymphocytes, and the inhibitory effects were time-dependent, with the strongest inhibition observed after 48 h and significantly weaker inhibition observed after 24 h of treatment. CONCLUSIONS Telmisartan may potentially regulate hypertensive inflammatory responses by inhibiting T-lymphocytic proliferation and Kv1.3 potassium channel expression in CD4+ T lymphocytes.
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Affiliation(s)
- Sha-Sha Huang
- Heart Centre, First Affiliated Hospital of Xinjiang Medical University, China
| | - Qiu-Bing Zhang
- Heart Centre, First Affiliated Hospital of Xinjiang Medical University, China
| | - Qing-Yan Yuan
- Heart Centre, First Affiliated Hospital of Xinjiang Medical University, China
| | - Si-Li He
- Heart Centre, First Affiliated Hospital of Xinjiang Medical University, China
| | - Yuan-Ming Zhang
- Heart Centre, First Affiliated Hospital of Xinjiang Medical University, China
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Huang SS, He SL, Zhang YM. The effects of telmisartan on the nuclear factor of activated T lymphocytes signalling pathway in hypertensive patients. J Renin Angiotensin Aldosterone Syst 2016; 17:1470320316655005. [PMID: 27317303 PMCID: PMC5843869 DOI: 10.1177/1470320316655005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 05/13/2016] [Indexed: 01/11/2023] Open
Abstract
HYPOTHESIS Previous studies provide links between the nuclear factor of activated T lymphocytes (NFAT) signalling pathway and the development of hypertension. Our preliminary studies indicate that telmisartan can block Kv1.3 potassium channels and effectively inhibit potassium current densities, along with Kv1.3 mRNA and protein expression levels. This paper aims to investigate whether telmisartan has an inhibitory effect on the NFAT signalling pathway after activation and proliferation of peripheral blood T lymphocytes in Kazakh patients with essential hypertension (EH) from Xinjiang, China. MATERIALS AND METHODS T lymphocytes were isolated using the immunomagnetic cell sorting method (MACS). The mRNA expression of NFATc1, IL-6 and TNF-α was measured by quantitative polymerase chain reaction (qRT-PCR) and relative protein levels were evaluated by Western blot. T cell samples from 50 hypertensive Kazakh patients from Xinjiang were randomly divided into control, telmisartan, cyclosporin A (CsA), VIVIT, and 4-aminopytidine (4-AP) groups. Peripheral blood T lymphocytes were first activated and proliferated in vitro, then incubated for 48 h under different treatment conditions before determination of protein and mRNA expression of NFATc1, IL-6, and TNF-α by Western blot and qRT-PCR analyses, respectively. RESULTS There were no significant differences in cardiovascular risk factors among the patients with samples assigned to the five groups (p > 0.05). Expression of NFATc1, IL-6, and TNF-α mRNA and protein was significantly reduced in T lymphocytes in all treatment groups (telmisartan, CsA, VIVIT, and 4-AP) compared with controls. CONCLUSIONS Antihypertensive function and inhibitory effects of telmisartan on the T lymphocyte NFAT signalling pathway are unlikely to affect the normal immune function of hypertensive patients. Telmisartan may exert anti-inflammatory effects by inhibition of the NFAT signalling pathway in the T lymphocytes of hypertensive patients.
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Affiliation(s)
- Sha-Sha Huang
- Heart Center, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Si-Li He
- Heart Center, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
| | - Yuan-Ming Zhang
- Heart Center, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang, China
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Niu S, Zhang B, Zhang K, Zhu P, Li J, Sun Y, He N, Zhang M, Gao Z, Li X, Simayi A, Ge J, Cong M, Zhou W, Qiu C. Synergistic effects of gene polymorphisms of the renin-angiotensin-aldosterone system on essential hypertension in Kazakhs in Xinjiang. Clin Exp Hypertens 2015:1-8. [PMID: 26269000] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To assess the synergistic effects of gene polymorphisms of the renin-angiotensin-aldosterone system (RAAS) on essential hypertension (EH) in Kazakhs in Xinjiang. METHODS A cross-sectional case-control association study was conducted in 52 1 hypertensive and 623 normotensive subjects of Kazakh ethnicity on eight common single nucleotide polymorphisms (SNPs) interspersed over five genes of the RAAS. SNPs were genotyped by polymerase chain reaction-restriction fragment length polymorphism. Interactions among the SNPs were analyzed by the multifactor dimensionality reduction method (MDR). RESULTS In single-locus analysis, subjects with AGT -6G, ACE D, and CYP11B2 -344C had increased susceptibility to EH (OR: 1.249; 1.425; 1.201). When subgrouped by sex, males with the t allele of REN Taq I had decreased risk for EH (OR: 0.529), and those with AGT -6G and CYP11B2 -344 C had increased risk for EH (OR: 1.498; 1.449). In females, carrying ACE D increased the risk for EH. (OR: 1.327). In six AGT haplotypes, H1 was protective, while H3 increased susceptibility to EH (OR: 0.683; 2.025). Interaction analysis by MDR showed that there was a strong synergistic effect between ACE I/D and CY11B2 (T-344C) and a moderate interaction between both ACE I/D and CY11B2 T-344C and AGT A-6G. CONCLUSIONS There was a strong synergistic effect between ACE I/D and CY11B2 T-344C and a moderate effect between both ACE I/D and CY11B2 T-344C and AGT A-6G. AGT -6G, ACE D, and CY11B2 -344C increased susceptibility to EH. REN Taq I, AGT -6G, CY11B2 -344 C and ACE D were associated with male and female EH, respectively. H1 and H3 of AGT were protective and risk haplotypes, respectively.
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Affiliation(s)
- Shudong Niu
- Basic Medical Science College, Qiqihar Medical University , Qiqihar , China
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Niu S, Zhang B, Zhang K, Zhu P, Li J, Sun Y, He N, Zhang M, Gao Z, Li X, Simayi A, Ge J, Cong M, Zhou W, Qiu C. Synergistic effects of gene polymorphisms of the renin-angiotensin-aldosterone system on essential hypertension in Kazakhs in Xinjiang. Clin Exp Hypertens 2015; 38:63-70. [PMID: 26305278 DOI: 10.3109/10641963.2015.1060985] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE To assess the synergistic effects of gene polymorphisms of the renin-angiotensin-aldosterone system (RAAS) on essential hypertension (EH) in Kazakhs in Xinjiang. METHODS A cross-sectional case-control association study was conducted in 52 1 hypertensive and 623 normotensive subjects of Kazakh ethnicity on eight common single nucleotide polymorphisms (SNPs) interspersed over five genes of the RAAS. SNPs were genotyped by polymerase chain reaction-restriction fragment length polymorphism. Interactions among the SNPs were analyzed by the multifactor dimensionality reduction method (MDR). RESULTS In single-locus analysis, subjects with AGT -6G, ACE D, and CYP11B2 -344C had increased susceptibility to EH (OR: 1.249; 1.425; 1.201). When subgrouped by sex, males with the t allele of REN Taq I had decreased risk for EH (OR: 0.529), and those with AGT -6G and CYP11B2 -344 C had increased risk for EH (OR: 1.498; 1.449). In females, carrying ACE D increased the risk for EH. (OR: 1.327). In six AGT haplotypes, H1 was protective, while H3 increased susceptibility to EH (OR: 0.683; 2.025). Interaction analysis by MDR showed that there was a strong synergistic effect between ACE I/D and CY11B2 (T-344C) and a moderate interaction between both ACE I/D and CY11B2 T-344C and AGT A-6G. CONCLUSIONS There was a strong synergistic effect between ACE I/D and CY11B2 T-344C and a moderate effect between both ACE I/D and CY11B2 T-344C and AGT A-6G. AGT -6G, ACE D, and CY11B2 -344C increased susceptibility to EH. REN Taq I, AGT -6G, CY11B2 -344 C and ACE D were associated with male and female EH, respectively. H1 and H3 of AGT were protective and risk haplotypes, respectively.
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Affiliation(s)
- Shudong Niu
- a Basic Medical Science College, Qiqihar Medical University , Qiqihar , China
| | - Bin Zhang
- b Medical Sciences, Chinese Academy of Medical Sciences (National laboratory of Medical Molecular Biology) , Beijing , China
| | - Keyong Zhang
- a Basic Medical Science College, Qiqihar Medical University , Qiqihar , China
| | - Pengcheng Zhu
- c Department of Cardiology , The Fourth Affiliated Hospital of Xinjiang Medical University , Urumuqi , China
| | - Jingping Li
- a Basic Medical Science College, Qiqihar Medical University , Qiqihar , China
| | - Yujing Sun
- b Medical Sciences, Chinese Academy of Medical Sciences (National laboratory of Medical Molecular Biology) , Beijing , China
| | - Ning He
- a Basic Medical Science College, Qiqihar Medical University , Qiqihar , China
| | - Mingtao Zhang
- d Altay Region People's Hospital , Aletai City , China , and
| | - Zhiying Gao
- a Basic Medical Science College, Qiqihar Medical University , Qiqihar , China
| | - Xueyan Li
- a Basic Medical Science College, Qiqihar Medical University , Qiqihar , China
| | - Amuti Simayi
- e People's General Hospital of Xinjiang Uyghur Autonomous Region , Urumuqi , China
| | - Jie Ge
- a Basic Medical Science College, Qiqihar Medical University , Qiqihar , China
| | - Mingyu Cong
- a Basic Medical Science College, Qiqihar Medical University , Qiqihar , China
| | - Wenna Zhou
- b Medical Sciences, Chinese Academy of Medical Sciences (National laboratory of Medical Molecular Biology) , Beijing , China
| | - Changchun Qiu
- a Basic Medical Science College, Qiqihar Medical University , Qiqihar , China
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