Alisol B inhibited complement 3a-induced human renal tubular epithelial to mesenchymal transition / 中国中西医结合杂志

ABSTRACT

<p><b>OBJECTIVE</b>To study whether alisol B could inhibit complement 3a (C3a) induced renal tubular epithelial-mesenchymal transition (EMT).</p><p><b>METHODS</b>The in vitro cultured human renal tubular epithelial HK-2 cells were intervened with 5 ng/mL transforming growth factor-beta (TGF-beta), 0.1 micromol C3a, and 0.1 micromol C3a + 10 micromol alisol B, respectively. The mRNA and protein expressions of alpha-SMA, E-cadherin, and C3 were detected using RT-PCR, Western blot, and immunofluorescence, respectively.</p><p><b>RESULTS</b>The mRNA and protein expressions of C3 in HK-2 cells were up-regulated after intervention of C3a (P < 0.01), the mRNA and protein expressions of alpha-SMA in HK-2 cells were obviously enhanced (P < 0.01), the mRNA and protein expressions of E-cadherin obviously decreased (P < 0.01). When compared with the group intervened by exogenous C3a, after intervention of alisol B, the mRNA and protein expressions of alpha-SMA in HK-2 cells were obviously reduced (P < 0.01), the mRNA and protein expressions of E-cadherin obviously increased (P < 0.05).</p><p><b>CONCLUSIONS</b>Exogenous C3a could induce renal tubular EMT. Alisol B was capable of suppressing C3a induced EMT.</p>