PMID- 28447757 OWN - NLM STAT- MEDLINE DCOM- 20180220 LR - 20210109 IS - 1791-3004 (Electronic) IS - 1791-2997 (Print) IS - 1791-2997 (Linking) VI - 15 IP - 5 DP - 2017 May TI - Molecular mechanism of smurf2 in regulating the expression of SnoN in diabetic nephropathy. PG - 2560-2566 LID - 10.3892/mmr.2017.6307 [doi] AB - The aim of the present study was to examine the regulatory mechanism underlying the depression in Ski‑related novel protein N (SnoN) in diabetic nephrology (DN). NRK‑52E cells, a rat primary renal tubular epithelial cell line, were cultured to clarify the effect of small mothers against decapentaplegic (Smad) ubiquitination regulatory factor 2 (smurf2) on SnoN in a low glucose environment in vitro. NRK‑52E cells and DM rats were injected with adenoviruses AD‑smurf2 and AD‑shsmurf2, respectively, and the protein expression profiles of SnoN, smurf2 and phosphorylated (p)‑Smad2 were then detected. In addition, the protein levels of smurf2, p‑Smad2 and SnoN were analyzed following treatment with transforming growth factor (TGF)‑beta1 or TGF‑beta1 inhibitor to validate the effect of the TGF‑beta1/Smad signaling pathway. The effect of smurf2 on the degradation of SnoN by ubiquitination was found to be a key factor in DN, which was mediated by the TGF‑beta1/Smad signaling pathway. FAU - Xu, Zhuojia AU - Xu Z AD - Department of Nephrology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P.R. China. FAU - Diao, Zongli AU - Diao Z AD - Department of Nephrology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P.R. China. FAU - Liu, Ruixia AU - Liu R AD - Department of Infectious Disease, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P.R. China. FAU - Liu, Wenhu AU - Liu W AD - Department of Nephrology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, P.R. China. LA - eng PT - Journal Article DEP - 20170309 PL - Greece TA - Mol Med Rep JT - Molecular medicine reports JID - 101475259 RN - 0 (Nerve Tissue Proteins) RN - 0 (Skil_v1 protein, rat) RN - 0 (Smad2 Protein) RN - 0 (Smad2 protein, rat) RN - 0 (Tgfb1 protein, rat) RN - 0 (Transcription Factors) RN - 0 (Transforming Growth Factor beta1) RN - EC 2.3.2.26 (Smurf2 protein, rat) RN - EC 2.3.2.27 (Ubiquitin-Protein Ligases) SB - IM MH - Animals MH - Diabetes Mellitus, Experimental/genetics/*metabolism/pathology MH - Diabetic Nephropathies/genetics/*metabolism MH - *Gene Expression Regulation MH - HEK293 Cells MH - Humans MH - Male MH - Nerve Tissue Proteins/*biosynthesis/genetics MH - Rats, Sprague-Dawley MH - *Signal Transduction MH - Smad2 Protein/genetics/metabolism MH - Transcription Factors/*biosynthesis/genetics MH - Transforming Growth Factor beta1/genetics/metabolism MH - Ubiquitin-Protein Ligases/genetics/*metabolism PMC - PMC5428923 EDAT- 2017/04/28 06:00 MHDA- 2018/02/21 06:00 PMCR- 2017/03/09 CRDT- 2017/04/28 06:00 PHST- 2016/01/22 00:00 [received] PHST- 2017/01/12 00:00 [accepted] PHST- 2017/04/28 06:00 [pubmed] PHST- 2018/02/21 06:00 [medline] PHST- 2017/04/28 06:00 [entrez] PHST- 2017/03/09 00:00 [pmc-release] AID - mmr-15-05-2560 [pii] AID - 10.3892/mmr.2017.6307 [doi] PST - ppublish SO - Mol Med Rep. 2017 May;15(5):2560-2566. doi: 10.3892/mmr.2017.6307. Epub 2017 Mar 9.