Journal of Bioenergetics and Biomembranes最新文献

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Anti-inflammatory effects of Esomeprazole in septic lung injury by mediating endoplasmic reticulum stress. 埃索美拉唑介导内质网应激对脓毒性肺损伤的抗炎作用。
IF 2.9 4区 生物学
Journal of Bioenergetics and Biomembranes Pub Date : 2025-06-01 Epub Date: 2025-03-12 DOI: 10.1007/s10863-025-10055-0
Peng Wang, Hui Li, Wencheng Wu
{"title":"Anti-inflammatory effects of Esomeprazole in septic lung injury by mediating endoplasmic reticulum stress.","authors":"Peng Wang, Hui Li, Wencheng Wu","doi":"10.1007/s10863-025-10055-0","DOIUrl":"10.1007/s10863-025-10055-0","url":null,"abstract":"<p><p>Acute lung injury characterized by overactive pulmonary inflammation is a common and serious complication of sepsis. Esomeprazole (ESO), a potent proton pump inhibitor (PPI), has been demonstrated as a promising anti-inflammatory agent in treating sepsis at high concentrations, the efficacy of which in sepsis-induced lung injury has not been explored. This research aimed to investigate the role of ESO in septic lung injury and the potential mechanism. The mice were pretreated by ESO prior to the construction of cecal ligation and puncture (CLP) sepsis model. MH-S lung macrophages were exposed to lipopolysaccharide (LPS) to induce inflammatory injury. The severity of lung damage was detected by H&E staining, measurement of lactic dehydrogenase (LDH) and lung wet/dry weight (W/D) ratio. The levels of inflammatory cytokines were detected by ELISA and Western blotting. The number of inflammatory cells was counted. Macrophage distribution was measured by immunohistochemical staining of macrophage markers. Western blotting also determined the expression of endoplasmic reticulum stress (ERS) and NLR family pyrin domain containing 3 (NLRP3) inflammasome-related proteins. CCK-8 method was used to detect cell viability. ESO concentration-dependently mitigated the pathological damage of lung tissues, reduced LDH activity, lung W/D ratio, decreased inflammatory cell counts and F4/80 expression in the lung tissues of sepsis mice. Besides, ESO suppressed inflammatory response, NLRP3 inflammasome activation and inactivated activating transcription factor 6 (ATF6)-CCAAT-enhancer-binding protein homologous protein (CHOP)-mediated ERS signaling both in vitro and in vivo. ATF6 overexpression partially reversed the impacts of ESO on NLRP3 inflammasome and the levels of inflammatory cytokines in LPS-induced MH-S cells. Anyway, ESO may inhibit ATF6/CHOP pathway to protect against inflammation in septic lung injury.</p>","PeriodicalId":15080,"journal":{"name":"Journal of Bioenergetics and Biomembranes","volume":" ","pages":"173-182"},"PeriodicalIF":2.9,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143615618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Differences in metabolite profiling by cold atmospheric plasma in normal and cancer cells. 正常细胞和癌细胞中低温大气血浆代谢物谱的差异。
IF 2.9 4区 生物学
Journal of Bioenergetics and Biomembranes Pub Date : 2025-06-01 Epub Date: 2025-05-05 DOI: 10.1007/s10863-025-10061-2
A B Zinnurova, K P Vorobyov, O V Bakina, E I Senkina, T B Lepekhina, V V Nikolaev, L V Spirina
{"title":"Differences in metabolite profiling by cold atmospheric plasma in normal and cancer cells.","authors":"A B Zinnurova, K P Vorobyov, O V Bakina, E I Senkina, T B Lepekhina, V V Nikolaev, L V Spirina","doi":"10.1007/s10863-025-10061-2","DOIUrl":"10.1007/s10863-025-10061-2","url":null,"abstract":"<p><p>Cold atmospheric plasma (CAP) recently it has been introduced as an innovative therapeutic approach for cancer cell treatment. However the cancer treatment faces questions about the selective anti-cancer capacity of CAP, the distinct molecular responses between cancer and normal cells. In present work 3T3 fibroblast and MCF-7 breast cancer epithelial cells were subjected to treatment of CAP with atmospheric discharge with runaway electrons. We have shown that a decrease in the 3T3 and MCF-7 cell viability under the influence of CAP. In addition, there was an increase in lactate dehydrogenase activity and an increase in the amount of NAD(P)H. An increase in the duration and dose of cold plasma exposure to living systems leaded to a change in the metabolic activity of cells. It was noted that after exposure to the culture of normal and cancer cells, there variability in biochemical and metabolic effects (lactate and growth of free form NAD(P)H), which was primarily accompanied shift in the equilibrium between oxidative phosphorylation and glycolysis. Therefore, cold plasma, at the same dose of radiation, has a stimulating effect on 3T3 cells and an apoptotic effect on MCF-7 cells, leading to a reduction in their metabolic activity. This results in a shift in the metabolic balance towards glycolysis for both 3T3 and MCF-7 cell cultures.</p>","PeriodicalId":15080,"journal":{"name":"Journal of Bioenergetics and Biomembranes","volume":" ","pages":"97-106"},"PeriodicalIF":2.9,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144016220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
KunMingShanHaiTang formula reprograms macrophage metabolism and promotes M2 polarization via the HIF-1α pathway to alleviate ulcerative colitis symptoms in a rat model. 昆明山海棠方通过HIF-1α途径重编程巨噬细胞代谢,促进M2极化,减轻溃疡性结肠炎大鼠模型症状。
IF 2.9 4区 生物学
Journal of Bioenergetics and Biomembranes Pub Date : 2025-06-01 Epub Date: 2025-04-02 DOI: 10.1007/s10863-025-10056-z
Zhiyun Zhang, Zhen Wang, Weiping Wan, Shumin Li, Wenzhi Yang, XiNan Shi
{"title":"KunMingShanHaiTang formula reprograms macrophage metabolism and promotes M2 polarization via the HIF-1α pathway to alleviate ulcerative colitis symptoms in a rat model.","authors":"Zhiyun Zhang, Zhen Wang, Weiping Wan, Shumin Li, Wenzhi Yang, XiNan Shi","doi":"10.1007/s10863-025-10056-z","DOIUrl":"10.1007/s10863-025-10056-z","url":null,"abstract":"<p><p>The KunMingShanHaiTang Formula (KMSHTF), adjusted by Professor Zhong Chuanhua for the treatment of ulcerative colitis (UC), is the work of a renowned veteran practitioner of Chinese medicine. However, its specific mechanism remains unknown. Consequently, it is intriguing to investigate the molecular mechanism by which KMSHTF treats UC. To elucidate the mechanism of KMSHTF in the treatment of UC in rats. Initially, the active ingredients and key target genes of KMSHTF in treating UC were analyzed using network pharmacology. Protein-Protein interaction and gene enrichment analyses were performed to predict key targets and pathways. Subsequently, UC rats were treated with KMSHTF, and the expression proteins in intestinal tissue were detected. Finally, the active compounds of KMSHTF intreating ulcerative colitis were further screened using Molecular Docking, and their pharmacological effects were validated through cell experiments. A total of 47 active compounds and 365 key target genes of KMSHTF for UC treatment were identified through the Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform,along with the GeneCards database. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) Enrichment Analysis revealed that KMSHTF exerted its therapeutic effects on UC through regulating multiple pathways. In this study, the HIF-1α pathway was selected as the main molecular pathway of KMSHTF treating UC, and further validation was conducted through in vivo and in vitro experiments.Animal studies revealed that KMSHTF significantly ameliorated UC symptoms in rats, including diarrhea,rectal bleeding and specific pathological alterations in the intestinal wall. Furthermore, KMSHTF reduced pro-inflammatory cytokines IL-6 and TNF-α, up-regulated IL-4 of M2 macrophages and down-regulated iNOS and IL-1β of M1 macrophages. Additionally, it decreased the expression levels of HKII and GLUT1 related HIF-1α pathway. The three active compounds of KMSHTF, Baicalein, Palmatine and Triptonide-were selected based on their strong binding affinity with HIF-1α and HKII through computational molecular docking. Cellular experiments demonstrated that each of these compounds downregulated the protein expression levels of HIF-1α, HKII, GLUT1 and IL-6 in an intestinal wall cell model. Of Note, Baicalein exhibited the most pronounced effect. However, the overexpression of HIF-1α reversed the Baicalein-induced downregulation of HKII, GLUT1 and IL-6 at the protein level in vitro. KMSHTF may modulate macrophage metabolism to promote M2 polarization through the HIF-1α pathway, thereby contributing to its therapeutic efficacy in ulcerative colitis (UC). Baicalein, Palmatine, and Triptonide are the three core active compounds of KMSHTF that primarily contribute to this hypothesis.</p>","PeriodicalId":15080,"journal":{"name":"Journal of Bioenergetics and Biomembranes","volume":" ","pages":"119-145"},"PeriodicalIF":2.9,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12170800/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143763995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mechanism of LncRNA CBR3-AS1 in regulating pyroptosis of intestinal epithelial cells in ulcerative colitis. LncRNA CBR3-AS1调控溃疡性结肠炎肠上皮细胞焦亡的机制
IF 2.9 4区 生物学
Journal of Bioenergetics and Biomembranes Pub Date : 2025-06-01 Epub Date: 2025-04-21 DOI: 10.1007/s10863-025-10060-3
Xi Li, Caiwen Yan, Suxia Li, Lujun Shen, Lijuan Huo
{"title":"Mechanism of LncRNA CBR3-AS1 in regulating pyroptosis of intestinal epithelial cells in ulcerative colitis.","authors":"Xi Li, Caiwen Yan, Suxia Li, Lujun Shen, Lijuan Huo","doi":"10.1007/s10863-025-10060-3","DOIUrl":"10.1007/s10863-025-10060-3","url":null,"abstract":"<p><p>Ulcerative colitis (UC) is a common chronic relapsing inflammatory disease that threatens human life. This study aims to explore the mechanism of LncRNA CBR3-AS1 in pyroptosis of intestinal epithelial cells in UC. The levels of CBR3-AS1, KLF2, and SUGT1 in UC cells were detected. After downregulating CBR3-AS1 expression, cell viability and pyroptosis were measured, followed by the detection of SOD and MDA levels. The binding of CBR3-AS1 to EZH2, enrichment of EZH2 and H3K27me3 on the KLF2 promoter, and binding of KLF2 to the SUGT1 promoter were assayed. The role of CBR3-AS1 in pyroptosis was validated in animal models. We found that CBR3-AS1 and SUGT1 were increased in UC cells, and KLF2 was decreased. After downregulation of CBR3-AS1, cell viability was increased and pyroptosis was alleviated. CBR3-AS1 recruited EZH2 to occupy the KLF2 promoter, leading to increased H3K27me3 levels and suppressed KLF2 expression, reducing the enrichment of KLF2 on the SUGT1 promoter, finally promoting SUGT1 expression. SUGT1 overexpression or KLF2 downregulation alleviated the protective effect of silencing CBR3-AS1 on pyroptosis in UC cells. CBR3-AS1 downregulation alleviates cell pyroptosis in colonic tissues. In conclusion, CBR3-AS1 exacerbated pyroptosis of intestinal epithelial cells in UC via the KLF2/SUGT1 pathway.</p>","PeriodicalId":15080,"journal":{"name":"Journal of Bioenergetics and Biomembranes","volume":" ","pages":"147-159"},"PeriodicalIF":2.9,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144005246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Correction: Dexmedetomidine activates mitophagy and protects against pyroptosis in oxygen-glucose deprivation/reperfusion-induced brain damage via PINK1/Parkin pathway activation. 更正:右美托咪定通过激活PINK1/Parkin通路激活氧葡萄糖剥夺/再灌注诱导的脑损伤,激活线粒体自噬并防止焦凋亡。
IF 2.9 4区 生物学
Journal of Bioenergetics and Biomembranes Pub Date : 2025-06-01 DOI: 10.1007/s10863-025-10058-x
Jieru Zhang, Ruxia Li, Luyong Wang, Shuqin Ni
{"title":"Correction: Dexmedetomidine activates mitophagy and protects against pyroptosis in oxygen-glucose deprivation/reperfusion-induced brain damage via PINK1/Parkin pathway activation.","authors":"Jieru Zhang, Ruxia Li, Luyong Wang, Shuqin Ni","doi":"10.1007/s10863-025-10058-x","DOIUrl":"10.1007/s10863-025-10058-x","url":null,"abstract":"","PeriodicalId":15080,"journal":{"name":"Journal of Bioenergetics and Biomembranes","volume":" ","pages":"197"},"PeriodicalIF":2.9,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143730237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Amyloid beta (Aβ) fibrillation kinetics and its impact on membrane polarity. 淀粉样蛋白(Aβ)颤动动力学及其对膜极性的影响。
IF 2.9 4区 生物学
Journal of Bioenergetics and Biomembranes Pub Date : 2025-02-01 Epub Date: 2025-01-06 DOI: 10.1007/s10863-024-10046-7
Arun Ajaikumar, Nozomi Morishita Watanabe, Keishi Suga, Yukihiro Okamoto, Hiroshi Umakoshi
{"title":"Amyloid beta (Aβ) fibrillation kinetics and its impact on membrane polarity.","authors":"Arun Ajaikumar, Nozomi Morishita Watanabe, Keishi Suga, Yukihiro Okamoto, Hiroshi Umakoshi","doi":"10.1007/s10863-024-10046-7","DOIUrl":"10.1007/s10863-024-10046-7","url":null,"abstract":"<p><p>Fibrillation of the amyloid beta (Aβ) peptide has often been associated with neurodegenerative pathologies such as Alzheimer's disease. In this study we examined the influence of several potential compositions of the lipid membrane on Aβ fibrillation by using liposomes as a basic model membrane. Firstly, it was revealed that Aβ fibrillation kinetics were enhanced and had the potential to occur at a faster rate on more fluid membranes compared to solid membranes. Next, the extent of fibril-related damage to membranes was examined with analysis of membrane polarity via the steady-state emission spectra of 6-dodecanoyl-2-dimethylaminonaphthalene (Laurdan). It was revealed that there was slight hydration behavior of the membrane during the lag phase (t<sub>lag</sub>) of the kinetic process, possibly coinciding with Aβ monomer binding. However, as the fibrillation kinetic process continued the membrane gradually dehydrated. Hydration states of membranes during and after Aβ fibrillation processes were further examined via deconvolution analysis of the obtained Laurdan spectra. This allows a mapping of membrane hydration from the interior to exterior regions of the lipid membrane. Results revealed slight but definitive variations in deeper region membrane polarity during the time course of Aβ fibrillation, suggesting Aβ aggregation impacts not only the surface level aggregating region but also the inner regions of the membrane. These results can ultimately contribute to the future investigations of the nature of the membrane damage caused by Aβ aggregation.</p>","PeriodicalId":15080,"journal":{"name":"Journal of Bioenergetics and Biomembranes","volume":" ","pages":"1-10"},"PeriodicalIF":2.9,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142931440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Acute CCl4-induced intoxication reduces complex I, but not complex II-based mitochondrial bioenergetics - protective role of succinate. 急性 CCl4 诱导的中毒会降低基于复合体 I 的线粒体生物能,但不会降低基于复合体 II 的线粒体生物能--琥珀酸的保护作用。
IF 2.9 4区 生物学
Journal of Bioenergetics and Biomembranes Pub Date : 2025-02-01 Epub Date: 2024-12-13 DOI: 10.1007/s10863-024-10047-6
Fozila R Ikromova, Feruzbek A Khasanov, Malika J Saidova, Ravshan K Shokirov, Shakhlo Gazieva, Abdukhakim M Khadjibaev, Davron B Tulyaganov, Rustam N Akalaev, Yulia V Levitskaya, Amir A Stopnitskiy, Artyom Y Baev
{"title":"Acute CCl<sub>4</sub>-induced intoxication reduces complex I, but not complex II-based mitochondrial bioenergetics - protective role of succinate.","authors":"Fozila R Ikromova, Feruzbek A Khasanov, Malika J Saidova, Ravshan K Shokirov, Shakhlo Gazieva, Abdukhakim M Khadjibaev, Davron B Tulyaganov, Rustam N Akalaev, Yulia V Levitskaya, Amir A Stopnitskiy, Artyom Y Baev","doi":"10.1007/s10863-024-10047-6","DOIUrl":"10.1007/s10863-024-10047-6","url":null,"abstract":"<p><p>The main therapeutic strategy for the treatment of patients with toxic liver failure is the elimination of the toxic agent in combination with the targeted mitigation of pathological processes that have been initiated due to the toxicant. In the current research we evaluated the strategy of metabolic supplementation to improve mitochondrial bioenergetics during acute liver intoxication. In our study, we have shown that acute CCl<sub>4</sub>-induced intoxication negatively affects Complex I (in the presence of glutamate-malate as energy substrates) based respiration, generation of mitochondrial membrane potential (ΔΨ<sub>m</sub>), mitochondrial NAD(P)H pool and NADH redox index, mitochondrial calcium retention capacity (CRC) and structure and functions of the liver. Boosting of mitochondrial bioenergetics through the complex II, using succinate as metabolic substrate in vitro, significantly improved mitochondrial respiration and generation of ΔΨ<sub>m</sub>, but not mitochondrial CRC. Co-application of rotenone along with succinate, to prevent possible reverse electron flow, didn't show significant differences compared to the effects of succinate alone. Treatment of animals with acute liver failure, using a metabolic supplement containing succinate, inosine, methionine and nicotinamide improved Complex I based respiration, generation of ΔΨ<sub>m</sub>, mitochondrial NAD(P)H pool and NADH redox index, mitochondrial CRC and slightly decreased the level of oxidative stress. These changes resulted in averting destructive and dystrophic changes in the structure of rat liver tissue caused by CCl<sub>4</sub> intoxication, concomitantly enhancing hepatic functionality. Thus, we propose that metabolic supplementation targeting complex II could serve as a potential adjunctive therapy in the management of acute liver intoxication.</p>","PeriodicalId":15080,"journal":{"name":"Journal of Bioenergetics and Biomembranes","volume":" ","pages":"11-26"},"PeriodicalIF":2.9,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142817908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sirt6 regulates the Notch signaling pathway and mediates autophagy and regulates podocyte damage in diabetic nephropathy. Sirt6调节Notch信号通路,介导自噬,调节糖尿病肾病足细胞损伤。
IF 2.9 4区 生物学
Journal of Bioenergetics and Biomembranes Pub Date : 2025-02-01 Epub Date: 2025-01-04 DOI: 10.1007/s10863-024-10049-4
Ping Ma, Hailin Shao, Donghong Xu, Xiaoyu Qi
{"title":"Sirt6 regulates the Notch signaling pathway and mediates autophagy and regulates podocyte damage in diabetic nephropathy.","authors":"Ping Ma, Hailin Shao, Donghong Xu, Xiaoyu Qi","doi":"10.1007/s10863-024-10049-4","DOIUrl":"10.1007/s10863-024-10049-4","url":null,"abstract":"<p><p>To investigate the role of silent information regulator 6 (SIRT6) in regulating podocyte injury in diabetic nephropathy (DN) through autophagy mediated by Notch signaling pathway. A blank control group (group A), a diabetic nephropathy group (group B), and a Sirt6 intervention group (group C) were established. The group A cells were human normal glomerular podocyte cell lines (HGPCs) without any treatment. In group B, the cells were cultivated in glucose medium containing 30 mmol/L and a 10 µmol/L anti-LSirt6 antibody solution. Three sets of cells were tested for their capacity to proliferate via CCK8, for protein expression via Western blot, for associated mRNA expression levels via qPCR, and for cell migration and invasion ability via Transwell. The podocyte proliferation and migration activity in group B were reduced compared to group A, while these properties in group C were elevated compared to group B (DN). B Group is diabetes nephropathy. Compared with those in group B, the number of invading podocytes in group C were greater than those in group A, and the overall apoptosis rate in group C was lower than that in group B. The expression levels of apoptotic proteins in the podocytes in group C were greater than those in group B, and the bcl-2 level was lower than those in group B. The Notch1 and Jagged1 mRNA and protein levels in the podocytes in group B were greater than those in group A, whereas those in the podocytes in group C were lower than those in group B. Sirt6 can protect against podocyte autophagy injury in DN by regulating the Notch1 signaling pathway.</p>","PeriodicalId":15080,"journal":{"name":"Journal of Bioenergetics and Biomembranes","volume":" ","pages":"49-55"},"PeriodicalIF":2.9,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142927083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nigericin modifies the mechanism of the uncoupling action of bile acids in rat liver mitochondria by converting ΔpH into Δψ. 尼日利亚菌素通过将ΔpH转化为Δψ来改变胆汁酸在大鼠肝脏线粒体中解偶联作用的机制。
IF 2.9 4区 生物学
Journal of Bioenergetics and Biomembranes Pub Date : 2025-02-01 Epub Date: 2024-12-19 DOI: 10.1007/s10863-024-10048-5
Evgeniya K Pavlova, Victor N Samartsev, Mikhail V Dubinin
{"title":"Nigericin modifies the mechanism of the uncoupling action of bile acids in rat liver mitochondria by converting ΔpH into Δψ.","authors":"Evgeniya K Pavlova, Victor N Samartsev, Mikhail V Dubinin","doi":"10.1007/s10863-024-10048-5","DOIUrl":"10.1007/s10863-024-10048-5","url":null,"abstract":"<p><p>Cholestasis caused by impaired bile secretion in the liver is associated with the accumulation of primary bile acids (BA): cholic acid (CA) and chenodeoxycholic acid (CDCA) in the cells of this organ. The paper studies the uncoupling effect of the CA and CDCA on the succinate-fueled rat liver mitochondria under conditions of ΔpH to Δψ conversion by nigericin. It has been established that without nigericin, the dependence of the resting-state (state 4) respiration rate on the concentrations of these BA is nonlinear and is described by a parabolic equation. Under these conditions, the specific inhibitor of the ADP/ATP-antiporter - carboxyatractylate and the substrate of the aspartate/glutamate-antiporter - glutamate do not affect the state 4 respiration of mitochondria stimulated by these BA. It is suggested that without nigericin, the protonophore action of BA is due to the formation of a dimeric complex of their anion with the acid. In the presence of nigericin, the dependence of state 4 respiration rate on BA concentration is linear. Under these conditions, carboxyatractylate inhibits BA-stimulated respiration. Unlike the CDCA, the uncoupling action of CA is also suppressed by the substrates of the aspartate/glutamate-antiporter. The obtained results are considered as evidence that in the presence of nigericin, uncoupling action of CDCA is carried out primarily with the participation of ADP/ATP-antiporter. Both ADP/ATP-antiporter and aspartate/glutamate-antiporter are involved in the uncoupling action of CA. It is concluded that nigericin modifies the mechanism of the uncoupling action of BA in liver mitochondria by converting ΔpH to Δψ.</p>","PeriodicalId":15080,"journal":{"name":"Journal of Bioenergetics and Biomembranes","volume":" ","pages":"39-48"},"PeriodicalIF":2.9,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142853433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Lithium compromises the bioenergetic reserve of cardiomyoblasts mitochondria. 锂损害了心肌细胞线粒体的生物能量储备。
IF 2.9 4区 生物学
Journal of Bioenergetics and Biomembranes Pub Date : 2025-02-01 Epub Date: 2025-01-24 DOI: 10.1007/s10863-024-10050-x
Marian Grman, Maria Balazova, Anton Horvath, Katarina Polcicova, Katarina Ondacova, Jakub Stepanovsky, Zuzana Sevcikova Tomaskova
{"title":"Lithium compromises the bioenergetic reserve of cardiomyoblasts mitochondria.","authors":"Marian Grman, Maria Balazova, Anton Horvath, Katarina Polcicova, Katarina Ondacova, Jakub Stepanovsky, Zuzana Sevcikova Tomaskova","doi":"10.1007/s10863-024-10050-x","DOIUrl":"10.1007/s10863-024-10050-x","url":null,"abstract":"<p><p>Lithium is used in the long-term treatment of bipolar disorder, exhibiting a beneficial effect on the neuronal cells. The concentration of lithium in the blood serum can vary and can easily approach a level that is related to cardiotoxic adverse effects. This is due to its narrow therapeutic index. In this study, we investigated the effect of higher than therapeutic dose of lithium. Rat cardiomyoblast cells were treated with 2 mM LiCl for 48 h, after which the mitochondrial parameters of the cells were analyzed. Lithium exposure reduced maximal respiratory capacity by diminishing reserve respiratory capacity (RRC), linked to a decrease in complex I (NADH dehydrogenase) activity and elevated superoxide radical levels. In addition, lithium treatment altered the composition of cellular membranes, including mitochondrial cardiolipin, a lipid essential for mitochondrial function. These findings suggest that impaired complex I activity, oxidative stress, and cardiolipin depletion collectively impair the ability of cells to meet high energy demands.</p>","PeriodicalId":15080,"journal":{"name":"Journal of Bioenergetics and Biomembranes","volume":" ","pages":"27-38"},"PeriodicalIF":2.9,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11829843/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143028849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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