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miR-30b inhibits autophagy to alleviate hepatic ischemia-reperfusion injury via decreasing the Atg12-Atg5 conjugate.
World J Gastroenterol. 2016 May 14; 22(18):4501-14.WJ

Abstract

AIM

To explore the role and potential mechanism of miR-30b regulation of autophagy in hepatic ischemia-reperfusion injury (IRI).

METHODS

An animal model of hepatic IRI was generated in C57BL/6 mice. For in vitro studies, AML12 cells were immersed in mineral oil for 1 h and then cultured in complete Dulbecco's Modified Eagle's Medium (DMEM)/F12 to simulate IRI. Mice and cells were transfected with miR-30b agomir/mimics or antagomir/inhibitor to examine the effect of miR-30b on autophagy to promote hepatic IRI. The expression of miR-30b was measured by real-time polymerase chain reaction. Apoptotic cells were detected by terminal uridine nick-end labeling (TUNEL) staining, and cell viability was detected by methylthiazole tetrazolium assay. The expression of light chain 3, autophagy-related gene (Atg)12, Atg5, P62, and caspase-3 were detected by western blotting analysis.

RESULTS

miR-30b levels were significantly downregulated after hepatic IRI, and the numbers of autophagosomes were increased in response to IRI both in vivo and in vitro. These findings demonstrate that low levels of miR-30b could promote hepatic IRI. Furthermore, we found that miR-30b interacted with Atg12-Atg5 conjugate by binding to Atg12. Overexpression of miR-30b diminished Atg12 and Atg12-Atg5 conjugate levels, which promoted autophagy in response to IR. In contrast, downregulation of miR-30b was associated with increased Atg12-Atg5 conjugate levels and increased autophagy.

CONCLUSION

miR-30b inhibited autophagy to alleviate hepatic ischemia-reperfusion injury via decreasing the Atg12-Atg5 conjugate.

Authors+Show Affiliations

Shi-Peng Li, Jin-Dan He, Zhen Wang, Yao Yu, Hai-Ming Zhang, Jian-Jun Zhang, Zhong-Yang Shen, First Central Clinical College of Tianjin Medical University, Tianjin 300192, China.Shi-Peng Li, Jin-Dan He, Zhen Wang, Yao Yu, Hai-Ming Zhang, Jian-Jun Zhang, Zhong-Yang Shen, First Central Clinical College of Tianjin Medical University, Tianjin 300192, China.Shi-Peng Li, Jin-Dan He, Zhen Wang, Yao Yu, Hai-Ming Zhang, Jian-Jun Zhang, Zhong-Yang Shen, First Central Clinical College of Tianjin Medical University, Tianjin 300192, China.Shi-Peng Li, Jin-Dan He, Zhen Wang, Yao Yu, Hai-Ming Zhang, Jian-Jun Zhang, Zhong-Yang Shen, First Central Clinical College of Tianjin Medical University, Tianjin 300192, China.Shi-Peng Li, Jin-Dan He, Zhen Wang, Yao Yu, Hai-Ming Zhang, Jian-Jun Zhang, Zhong-Yang Shen, First Central Clinical College of Tianjin Medical University, Tianjin 300192, China.Shi-Peng Li, Jin-Dan He, Zhen Wang, Yao Yu, Hai-Ming Zhang, Jian-Jun Zhang, Zhong-Yang Shen, First Central Clinical College of Tianjin Medical University, Tianjin 300192, China.Shi-Peng Li, Jin-Dan He, Zhen Wang, Yao Yu, Hai-Ming Zhang, Jian-Jun Zhang, Zhong-Yang Shen, First Central Clinical College of Tianjin Medical University, Tianjin 300192, China.Shi-Peng Li, Jin-Dan He, Zhen Wang, Yao Yu, Hai-Ming Zhang, Jian-Jun Zhang, Zhong-Yang Shen, First Central Clinical College of Tianjin Medical University, Tianjin 300192, China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

27182160

Citation

Li, Shi-Peng, et al. "MiR-30b Inhibits Autophagy to Alleviate Hepatic Ischemia-reperfusion Injury Via Decreasing the Atg12-Atg5 Conjugate." World Journal of Gastroenterology, vol. 22, no. 18, 2016, pp. 4501-14.
Li SP, He JD, Wang Z, et al. MiR-30b inhibits autophagy to alleviate hepatic ischemia-reperfusion injury via decreasing the Atg12-Atg5 conjugate. World J Gastroenterol. 2016;22(18):4501-14.
Li, S. P., He, J. D., Wang, Z., Yu, Y., Fu, S. Y., Zhang, H. M., Zhang, J. J., & Shen, Z. Y. (2016). MiR-30b inhibits autophagy to alleviate hepatic ischemia-reperfusion injury via decreasing the Atg12-Atg5 conjugate. World Journal of Gastroenterology, 22(18), 4501-14. https://doi.org/10.3748/wjg.v22.i18.4501
Li SP, et al. MiR-30b Inhibits Autophagy to Alleviate Hepatic Ischemia-reperfusion Injury Via Decreasing the Atg12-Atg5 Conjugate. World J Gastroenterol. 2016 May 14;22(18):4501-14. PubMed PMID: 27182160.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - miR-30b inhibits autophagy to alleviate hepatic ischemia-reperfusion injury via decreasing the Atg12-Atg5 conjugate. AU - Li,Shi-Peng, AU - He,Jin-Dan, AU - Wang,Zhen, AU - Yu,Yao, AU - Fu,Shu-Yu, AU - Zhang,Hai-Ming, AU - Zhang,Jian-Jun, AU - Shen,Zhong-Yang, PY - 2016/01/09/received PY - 2016/01/30/revised PY - 2016/03/01/accepted PY - 2016/5/17/entrez PY - 2016/5/18/pubmed PY - 2017/4/12/medline KW - Atg12-Atg5 conjugate KW - Autophagy KW - Hepatic ischemia-reperfusion injury KW - miR-30b SP - 4501 EP - 14 JF - World journal of gastroenterology JO - World J. Gastroenterol. VL - 22 IS - 18 N2 - AIM: To explore the role and potential mechanism of miR-30b regulation of autophagy in hepatic ischemia-reperfusion injury (IRI). METHODS: An animal model of hepatic IRI was generated in C57BL/6 mice. For in vitro studies, AML12 cells were immersed in mineral oil for 1 h and then cultured in complete Dulbecco's Modified Eagle's Medium (DMEM)/F12 to simulate IRI. Mice and cells were transfected with miR-30b agomir/mimics or antagomir/inhibitor to examine the effect of miR-30b on autophagy to promote hepatic IRI. The expression of miR-30b was measured by real-time polymerase chain reaction. Apoptotic cells were detected by terminal uridine nick-end labeling (TUNEL) staining, and cell viability was detected by methylthiazole tetrazolium assay. The expression of light chain 3, autophagy-related gene (Atg)12, Atg5, P62, and caspase-3 were detected by western blotting analysis. RESULTS: miR-30b levels were significantly downregulated after hepatic IRI, and the numbers of autophagosomes were increased in response to IRI both in vivo and in vitro. These findings demonstrate that low levels of miR-30b could promote hepatic IRI. Furthermore, we found that miR-30b interacted with Atg12-Atg5 conjugate by binding to Atg12. Overexpression of miR-30b diminished Atg12 and Atg12-Atg5 conjugate levels, which promoted autophagy in response to IR. In contrast, downregulation of miR-30b was associated with increased Atg12-Atg5 conjugate levels and increased autophagy. CONCLUSION: miR-30b inhibited autophagy to alleviate hepatic ischemia-reperfusion injury via decreasing the Atg12-Atg5 conjugate. SN - 2219-2840 UR - https://www.unboundmedicine.com/medline/citation/27182160/miR_30b_inhibits_autophagy_to_alleviate_hepatic_ischemia_reperfusion_injury_via_decreasing_the_Atg12_Atg5_conjugate_ L2 - http://www.wjgnet.com/1007-9327/full/v22/i18/4501.htm DB - PRIME DP - Unbound Medicine ER -