Total RNA of kidney samples from different groups were prepared for RNA-sequencing as we previously reported 35 (link), 36 (link). Sequencing and analysis were performed by Novogene (Beijing, China). qPCR and Western blots were performed as we previously described 37 (link). Primers and antibodies used are provided in Tables S1 and S2. For reporter assay, promoter region of Il-6 from -2000 to +500 of TSS (transcription start site) was cloned into pGL3-enhancer (Promega, Madison, WI). Five pGL3-Il-6 luciferase reporter plasmids were constructed by inserting different regions of the Il-6 promoter into pGL3-enhancer vector. NRK52E cells were transfected with indicated plasmids, luciferase assays were performed and analyzed as we previously described 38 (link).
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