Fig. 5: RIP3 impeded the nuclear translocation of TFEB in septic AKI mice and LPS-treated cultured PTECs. | Cell Death & Disease

Fig. 5: RIP3 impeded the nuclear translocation of TFEB in septic AKI mice and LPS-treated cultured PTECs.

From: RIP3 impedes transcription factor EB to suppress autophagic degradation in septic acute kidney injury

Fig. 5: RIP3 impeded the nuclear translocation of TFEB in septic AKI mice and LPS-treated cultured PTECs.The alternative text for this image may have been generated using AI.

A Immunofluorescence staining for TFEB (green) and DAPI (blue) in the kidneys from C57BL/6 mice treated with sterilized saline (con), LPS, or LPS plus GSK’872 (GSK) for 24 h. GSK partially restored the decreased nuclear staining of TFEB in the renal tubular cells of LPS-induced mice. Scale bar = 20 μm. B Cultured PTECs treated with LPS, LPS plus GSK, LPS plus DMSO, LPS plus RIP3 siRNA, or LPS plus scrambled siRNA (Scramble) for 12 h. The nuclear protein fractions were immunoblotted for TFEB. Histone was used as the nuclear marker. TFEB expression against Histone was decreased by LPS treatment, which was restored by GSK or RIP3 siRNA (n = 3). C Immunofluorescence staining for TFEB (green) and DAPI (blue) in cultured PTECs treated as indicated. The nuclear translocation of TFEB was inhibited by LPS, which was rescued by GSK or RIP3 siRNA. Scale bar = 20 μm. D, E Lysates from cultured PTECs treated with LPS or DMSO (con) for 12 h were subjected to immunoprecipitation using an anti-RIP3 antibody (D) or anti-TFEB antibody (E), and IgG antibody followed by immunoblot for TFEB and RIP3. Input proteins were detected with anti-RIP3 and anti-TFEB antibodies. RIP3 interacted with TFEB in LPS-treated PTECs compared to the control group. F Lysates from cultured PTECs treated with LPS or DMSO (con) for 12 h were subjected to immunoprecipitation using anti-TFEB antibody and IgG antibody followed by immunoblot for p-RIP3. Input proteins were detected with anti-p-RIP3 and anti-TFEB antibodies. p-RIP3 interacted with TFEB in LPS-treated PTECs compared to the control group. *P < 0.05.

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