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This study aimed to investigate the role of lncRNA AK131850 in thoracic aortic aneurysm (TAA). We found that AK131850 was downregulated, while TGF-β1 was upregulated in aortic media specimen of thoracic aortic aneurysm (TAA) patients. In addition, AK131850 and TGF-β1 inversely correlated. Altered expression levels of AK131850 and TGF-β1 distinguished TAA patients from healthy controls. In human aortic smooth muscle cells (HAOSMC), AK131850 overexpression led to downregulated, while AK131850 siRNA silencing led to upregulated TGF-β1. AK131850 overexpression resulted in promoted, while siRNA silencing led to inhibited proliferation of HAOSMC. Therefore, AK131850 is downregulated in thoracic aortic aneurysm and negatively affects the levels of TGF-β1 in aortic smooth muscle cells.

LncRNA AK131850 is downregulated in thoracic aortic aneurysm and negatively affects the levels of TGF-β1 in aortic smooth muscle cells