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. 2022 Sep 22;23(19):11148. doi: 10.3390/ijms231911148

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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The expression of TLR4 and CD14 in senescent endothelial cells. Flow cytometry was used to analyze the expression of TLR4 and CD14 in senescent (S) and non-senescent (NS) human umbilical vein endothelial cells (HUVECs). The relative expression of TLR4 (A) and CD14 (B) of senescent cells was expressed as a ratio to non-senescent cells. Data are the mean ± standard deviation (SD) of at least three independent experiments. Values were compared between senescent and non-senescent cells. The expression of TLR4 was upregulated, whereas the expression of CD14 was downregulated in senescent cells. * p < 0.05 [93].