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- W2891990362 abstract "Purpose . This study aimed to explore whether bone marrow- (BM-) derived endothelial progenitor cells (EPCs) contributing to monocrotaline- (MCT-) induced pulmonary arterial hypertension (PAH) in rats via modulating store-operated <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M1><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant=normal>C</mml:mi><mml:mi mathvariant=normal>a</mml:mi></mml:mrow><mml:mrow><mml:mn mathvariant=normal>2</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math> channels (SOC). Methods . Sprague Dawley (SD) rats were assigned into MCT group (n = 30) and control group (n = 20). Rats in MCT group were subcutaneously administered with 60 mg/kg MCT solution, and rats in control group were injected with equal amount of vehicle. After 3 weeks of treatment, right ventricular systolic pressure (RVSP) and right ventricular hypertrophy index (RVHI) of two groups were measured, and BM-derived EPCs were isolated. Immunochemistry identification and vasculogenesis detection of EPCs were then performed. <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M2><mml:mrow><mml:msub><mml:mrow><mml:mfenced open=[ close=] separators=|><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant=normal>C</mml:mi><mml:mi mathvariant=normal>a</mml:mi></mml:mrow><mml:mrow><mml:mn mathvariant=normal>2</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:mfenced></mml:mrow><mml:mrow><mml:mi mathvariant=normal>c</mml:mi><mml:mi mathvariant=normal>y</mml:mi><mml:mi mathvariant=normal>t</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math> measurement was performed to detect store-operated calcium entry (SOCE) in two groups, followed by determination of Orai and canonical transient receptor potential (TRPC) channels expression. Results . After 3 weeks of treatment, there were significant increases in RVSP and RVHI in MCT group compared with control group, indicating that MCT successfully induced PAH in rats. Moreover, the SOCE (<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M3><mml:mrow><mml:msub><mml:mrow><mml:mfenced open=[ close=] separators=|><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant=normal>C</mml:mi><mml:mi mathvariant=normal>a</mml:mi></mml:mrow><mml:mrow><mml:mn mathvariant=normal>2</mml:mn><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:mfenced></mml:mrow><mml:mrow><mml:mi mathvariant=normal>c</mml:mi><mml:mi mathvariant=normal>y</mml:mi><mml:mi mathvariant=normal>t</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math> rise) in BM-derived EPCs of MCT group was lower than that of control group. Furthermore, the expression levels of Orai3, TRPC1, TRPC3, and TRPC6 in BM-derived EPCs were decreased in MCT group in comparison with control group. Conclusions . The SOC activities were inhibited in BM-derived EPCs of MCT-treated rats. These results may be associated with the depressed expression of Orai3, TRPC1, TRPC3, and TRPC6, which are major mediators of SOC." @default.
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- W2891990362 date "2018-09-18" @default.
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- W2891990362 title "Bone Marrow-Derived Endothelial Progenitor Cells Contribute to Monocrotaline-Induced Pulmonary Arterial Hypertension in Rats via Inhibition of Store-Operated Ca2+ Channels" @default.
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- W2891990362 doi "https://doi.org/10.1155/2018/4892349" @default.
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