| Autor: |
Cynthia S. Indralingam, Alma K. Gutierrez‐Gonzalez, Scott C. Johns, Tzuhan Tsui, Daniel T. Cannon, Mark M. Fuster, Timothy D. Bigby, Patricia A. Jennings, Ellen C. Breen |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Physiological Reports, Vol 10, Iss 3, Pp n/a-n/a (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2051-817X |
| DOI: |
10.14814/phy2.15185 |
| Popis: |
Abstract Pulmonary arterial hypertension (PAH) is associated with significant morbidity and mortality. PAH is characterized by pulmonary artery remodeling, elevated right ventricular pressure (RVP) and, ultimately, cardiac failure. Pulmonary endothelial cells can sense danger or damage caused by mechanical injury or pathogens through alarmin cytokines. These cytokines can signal proliferation to restore barrier integrity or aberrant hyperproliferation and remodeling. We hypothesized that IL‐33 signals pulmonary artery endothelial cells to proliferate under hypertensive conditions during the remodeling response and rise in RVP. To test this hypothesis, pulmonary hypertension (PH) was induced in C57Bl/6J, IL‐33 receptor gene deleted (ST2−/−) and MYD88 gene deleted (MYD88−/−) mice by exposure to 10% O2 and SU5416 injections (SUHX). RVP, arterial wall thickness, endothelial cell proliferation and IL‐33 levels and signaling were evaluated. In response to SUHX. RVP increased in C57Bl/6J mice in response to SUHX (49% male and 70% female; p |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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