PMID- 35851124 OWN - NLM STAT- MEDLINE DCOM- 20221228 LR - 20221228 IS - 1001-5302 (Print) IS - 1001-5302 (Linking) VI - 47 IP - 12 DP - 2022 Jun TI - [Effect of Linggui Zhugan Decoction-containing serum on mitochondrial oxidative stress in cardiomyocytes: an exploration based on Nrf2/BNIP3 signaling pathway]. PG - 3303-3311 LID - 10.19540/j.cnki.cjcmm.20220111.401 [doi] AB - This study aimed to explore the effect of Linggui Zhugan Decoction(LGZGD)-containing serum on mitochondrial oxidative stress in cardiomyocytes based on the NF-E2-related factor2(Nrf2)/Bcl-2/adenovirus E1 B 19 kDa interacting protein(BNIP3) signaling pathway. After the preparation of LGZGD-containing serum and blank serum, H9 c2 cardiomyocytes were exposed to H_2O_2 for inducing oxidative stress in vitro. The H9 c2 cells were divided into four groups, namely normal control group, H_2O_2 model group, 20% blank serum group, and 20% LGZGD-containing serum group. After the cells were pre-treated with different types of serum for 12 h and cultured with 100 mumol.L~(-1 )H_2O_2 for 6 h, the reactive oxygen species(ROS) level in each group was detected by DCFH-DA, and the openness of mitochondrial permeability transition pore(mPTP) was measured using a calcein AM fluorescent probe. The expression levels of cytoplasmic cytochrome C(CytC), mitochondrial CytC, cytoplasmic and nuclear Nrf2, and BNIP3 were detected by Western blot. Nrf2-silenced H9 c2 cells were prepared by transfecting them with siRNA-Nrf2 for investigating the efficacy of LGZGD-containing serum in regulating ROS, mPTP, cytoplasmic and mitochondrial CytC, and BNIP3. The results showed that compared with the normal control group, H_2O_2 significantly increased the ROS content and mPTP openness(P<0.01), and the expression of Nrf2, BNIP3, and cytoplasmic CytC(P<0.01), and decreased the expression of mitochondrial CytC(P<0.01), without causing obvious change in cytoplasmic Nrf2. LGZGD-containing serum significantly lowered ROS content(P<0.01), inhibited mPTP openness(P<0.01), down-regulated the expression of cytoplasmic CytC and BNIP3(P<0.01), up-regulated mitochondrial CytC expression(P<0.01), and promoted Nrf2 nuclear translocation(P<0.05). However, after Nrf2 silencing, the reduced ROS production, diminished BNIP3 expression, and inhibited mPTP openness and CytC release induced by LGZGD-containing serum were reversed(P<0.01). These results have suggested that LGZGD-containing serum is able to alleviate the mitochondrial oxidative stress injury of cardiomyocytes by regulating the Nrf2/BNIP3 signaling pathway. FAU - Tang, Tong-Juan AU - Tang TJ AD - Graduate School of Anhui University of Chinese Medicine Hefei 230031, China. FAU - Wang, Xiang AU - Wang X AD - Graduate School of Anhui University of Chinese Medicine Hefei 230031, China. FAU - Zhou, Peng AU - Zhou P AD - Graduate School of Anhui University of Chinese Medicine Hefei 230031, China. FAU - Wang, Liang AU - Wang L AD - Graduate School of Anhui University of Chinese Medicine Hefei 230031, China. FAU - Shi, Hui AU - Shi H AD - Graduate School of Anhui University of Chinese Medicine Hefei 230031, China. FAU - Huang, Jin-Ling AU - Huang JL AD - Graduate School of Anhui University of Chinese Medicine Hefei 230031, China. LA - chi PT - Journal Article PL - China TA - Zhongguo Zhong Yao Za Zhi JT - Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica JID - 8913656 RN - 0 (NF-E2-Related Factor 2) RN - 0 (Reactive Oxygen Species) RN - 0 (Mitochondrial Permeability Transition Pore) SB - IM MH - Apoptosis MH - *Myocytes, Cardiac MH - *NF-E2-Related Factor 2/genetics/metabolism MH - Oxidative Stress MH - Reactive Oxygen Species/metabolism MH - Signal Transduction MH - Mitochondrial Permeability Transition Pore OTO - NOTNLM OT - Linggui Zhugan Decoction(LGZGD) OT - apoptosis OT - mitochondria OT - oxidative stress OT - reactive oxygen species(ROS) EDAT- 2022/07/20 06:00 MHDA- 2022/07/22 06:00 CRDT- 2022/07/19 08:07 PHST- 2022/07/19 08:07 [entrez] PHST- 2022/07/20 06:00 [pubmed] PHST- 2022/07/22 06:00 [medline] AID - 10.19540/j.cnki.cjcmm.20220111.401 [doi] PST - ppublish SO - Zhongguo Zhong Yao Za Zhi. 2022 Jun;47(12):3303-3311. doi: 10.19540/j.cnki.cjcmm.20220111.401.