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Sun CK, Zhen YY, Lu HI, et al. Reducing TRPC1 Expression through Liposome-Mediated siRNA Delivery Markedly Attenuates Hypoxia-Induced Pulmonary Arterial Hypertension in a Murine Model. Stem Cells Int. 2014;2014:316214doi: 10.1155/2014/316214.
Sun, C. K., Zhen, Y. Y., Lu, H. I., Sung, P. H., Chang, L. T., Tsai, T. H., Sheu, J. J., Chen, Y. L., Chua, S., Chang, H. W., Chen, Y. L., Lee, F. Y., & Yip, H. K. (2014). Reducing TRPC1 Expression through Liposome-Mediated siRNA Delivery Markedly Attenuates Hypoxia-Induced Pulmonary Arterial Hypertension in a Murine Model. Stem cells international, 2014316214. https://doi.org/10.1155/2014/316214
Sun, Cheuk-Kwan, et al. "Reducing TRPC1 Expression through Liposome-Mediated siRNA Delivery Markedly Attenuates Hypoxia-Induced Pulmonary Arterial Hypertension in a Murine Model." Stem cells international vol. 2014 (2014): 316214. doi: https://doi.org/10.1155/2014/316214
Sun CK, Zhen YY, Lu HI, Sung PH, Chang LT, Tsai TH, Sheu JJ, Chen YL, Chua S, Chang HW, Chen YL, Lee FY, Yip HK. Reducing TRPC1 Expression through Liposome-Mediated siRNA Delivery Markedly Attenuates Hypoxia-Induced Pulmonary Arterial Hypertension in a Murine Model. Stem Cells Int. 2014;2014:316214. doi: 10.1155/2014/316214. Epub 2014 Dec 18. PMID: 25587286; PMCID: PMC4281407.
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Stem Cells Int. 2014;2014:316214. doi: 10.1155/2014/316214. Epub 2014 Dec 18.

Reducing TRPC1 Expression through Liposome-Mediated siRNA Delivery Markedly Attenuates Hypoxia-Induced Pulmonary Arterial Hypertension in a Murine Model.

Stem cells international

Cheuk-Kwan Sun, Yen-Yi Zhen, Hung-I Lu, Pei-Hsun Sung, Li-Teh Chang, Tzu-Hsien Tsai, Jiunn-Jye Sheu, Yung-Lung Chen, Sarah Chua, Hsueh-Wen Chang, Yi-Ling Chen, Fan-Yen Lee, Hon-Kan Yip

Affiliations

  1. Department of Emergency Medicine, E-Da Hospital, I-Shou University College of Medicine, Kaohsiung 82445, Taiwan.
  2. Division of Cardiology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan.
  3. Division of Thoracic and Cardiovascular Surgery, Department of Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan.
  4. Basic Science, Nursing Department, Meiho Institute of Technology, Pingtung 91202, Taiwan.
  5. Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan.
  6. Division of Cardiology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan ; Center for Translational Research in Biomedical Sciences, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan ; Institute of Shock Wave Medicine and Tissue Engineering, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan.

PMID: 25587286 PMCID: PMC4281407 DOI: 10.1155/2014/316214

Abstract

We tested the hypothesis that Lipofectamine siRNA delivery to deplete transient receptor potential cation channel (TRPC) 1 protein expression can suppress hypoxia-induced pulmonary arterial hypertension (PAH) in mice. Adult male C57BL/6 mice were equally divided into group 1 (normal controls), group 2 (hypoxia), and group 3 (hypoxia + siRNA TRPC1). By day 28, right ventricular systolic pressure (RVSP), number of muscularized arteries, right ventricle (RV), and lung weights were increased in group 2 than in group 1 and reduced in group 3 compared with group 2. Pulmonary crowded score showed similar pattern, whereas number of alveolar sacs exhibited an opposite pattern compared to that of RVSP in all groups. Protein expressions of TRPCs, HIF-1α, Ku-70, apoptosis, and fibrosis and pulmonary mRNA expressions of inflammatory markers were similar pattern, whereas protein expressions of antifibrosis and VEGF were opposite to the pattern of RVSP. Cellular markers of pulmonary DNA damage, repair, and smooth muscle proliferation exhibited a pattern similar to that of RVSP. The mRNA expressions of proapoptotic and hypertrophy biomarkers displayed a similar pattern, whereas sarcomere length showed an opposite pattern compared to that of RVSP in all groups. Lipofectamine siRNA delivery effectively reduced TRPC1 expression, thereby attenuating PAH-associated RV and pulmonary arteriolar remodeling.

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