ACTH4-10 protects the ADR-injured podocytes by stimulating B lymphocytes to secrete interleukin-10.

International Immunopharmacology
Kun WangDong Xue

Abstract

In the present study, we aimed to assess whether adrenocorticotropic hormone (ACTH) could protect the podocytes from adriamycin (ADR)-induced injury by stimulating B lymphocytes to secrete the associated cytokines. Proliferation assay was used to assess the proliferation and activity of podocytes. Enzyme-linked immunosorbent assay was used to examine the secretion of IL-10 and IL-4. TUNEL apoptosis detection kit was used to detect the apoptosis of podocytes. Real-time PCR and Western blotting analysis were used to examine the expressions of nephrin and podocin at the mRNA and protein levels. Compared with the normal control group, the podocyte proliferation of ADR group was significantly inhibited. However, compared with the ADR group, the podocyte proliferation of the supernatant (1 µg/L, 10 µg/L or 100 µg/L ACTH4-10) + ADR groups was generally increased, and the pro-proliferative effect of the supernatant containing 10 µg/L ACTH4-10 was the highest. Moreover, we found that after B lymphocytes were intervened by 10 µg/L ACTH4-10, the IL-10 level in the cell supernatant was significantly elevated (p < 0.05). When anti-IL-10R was added, the podocyte proliferation of the supernatant (10 µg/L ACTH4-10) + ADR group was significantl...Continue Reading

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