Prostaglandins & other lipid mediators最新文献

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The evolving landscape of lipid mediator research: Emerging findings and observations from the 19th Winter Eicosanoid conference 脂质介质研究的演变景观:来自第19届冬季类二十烷会议的新发现和观察。
IF 2.5 3区 生物学
Prostaglandins & other lipid mediators Pub Date : 2026-03-01 Epub Date: 2026-02-12 DOI: 10.1016/j.prostaglandins.2026.107062
Victor Garcia, Danielle Diegisser, Alexandra Wolf, Jonathan V. Pascale, Michal L. Schwartzman
{"title":"The evolving landscape of lipid mediator research: Emerging findings and observations from the 19th Winter Eicosanoid conference","authors":"Victor Garcia, Danielle Diegisser, Alexandra Wolf, Jonathan V. Pascale, Michal L. Schwartzman","doi":"10.1016/j.prostaglandins.2026.107062","DOIUrl":"10.1016/j.prostaglandins.2026.107062","url":null,"abstract":"","PeriodicalId":21161,"journal":{"name":"Prostaglandins & other lipid mediators","volume":"183 ","pages":"Article 107062"},"PeriodicalIF":2.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146197913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Wulingsan alleviates metabolic dysfunction-associated steatotic liver disease through regulating gut microbiota-bile acid axis 五灵散通过调节肠道菌群-胆汁酸轴缓解代谢功能障碍相关的脂肪变性肝病。
IF 2.5 3区 生物学
Prostaglandins & other lipid mediators Pub Date : 2026-03-01 Epub Date: 2026-03-08 DOI: 10.1016/j.prostaglandins.2026.107067
Junyu Luo , Xiaowen Jin , Mingyue Cui , Hanyu He , Jiabao Liao , Weibo Wen , Wenting Li , Yongjun Cao
{"title":"Wulingsan alleviates metabolic dysfunction-associated steatotic liver disease through regulating gut microbiota-bile acid axis","authors":"Junyu Luo ,&nbsp;Xiaowen Jin ,&nbsp;Mingyue Cui ,&nbsp;Hanyu He ,&nbsp;Jiabao Liao ,&nbsp;Weibo Wen ,&nbsp;Wenting Li ,&nbsp;Yongjun Cao","doi":"10.1016/j.prostaglandins.2026.107067","DOIUrl":"10.1016/j.prostaglandins.2026.107067","url":null,"abstract":"<div><h3>Background</h3><div>Metabolic dysfunction-associated Steatotic Liver Disease (MASLD) is closely linked to gut microbiota disorders and bile acid imbalance. Wulingsan (WLS) have shown promise in regulating these pathways, but its mechanism of action unclear. This study aimed to evaluate the therapeutic effect of WLS on the rat MASLD model from the perspectives of intestinal microbiota composition and bile acid homeostasis.</div></div><div><h3>Methods</h3><div>The MASLD model was induced by a high-fat diet (HFD) and treated with different doses of WLS. Body weight and serum lipid profiles were monitored, inflammation were assessed to ELISA and RT-qPCR. H&amp;E staining to evaluate histopathological changes. The 16S rRNA sequencing and LC-MS/MS analysis of gut microbiota composition and bile acid profiles. The fecal microbiota transplantation (FMT) experiment verified the effect of WLS on the gut microbiota.</div></div><div><h3>Results</h3><div>WLS treatment reduces the body weight of MASLD rats, improves lipid indicators, and inhibits inflammation and liver damage. The results of the FMT experiment indicated that transplantation of fecal microbiota from WLS-treated donors regulated the gut microbial composition and restored bile acid metabolic homeostasis in recipient rats.</div></div><div><h3>Discussion</h3><div>This study demonstrates that WLS treats MASLD by modulating multiple pathological pathways. Its effects in improving lipid metabolism and reducing hepatic inflammation align with the pathophysiological mechanisms of MASLD, indicating direct hepatoprotective actions. WLS intervention significantly restored gut microbiota diversity, increased the proportion of beneficial bacteria, suppressed potentially harmful bacterial genera, and corrected dysbiosis. FMT experiments further confirmed that gut microbes play a crucial role in mediating the therapeutic benefits of WLS. When microbiota from WLS-treated donors were transplanted into recipient rats, significant improvements were observed in metabolic markers, hepatic histopathology, and bile acid homeostasis. Collectively, the data support that WLS improves MASLD through a multi-targeted strategy centered on the gut-liver axis.</div></div><div><h3>Conclusion</h3><div>WLS has an effective therapeutic effect on MASLD by improving lipid metabolism, reducing liver inflammation, reshaping the intestinal microbiota and normalizing bile acid homeostasis.</div></div>","PeriodicalId":21161,"journal":{"name":"Prostaglandins & other lipid mediators","volume":"183 ","pages":"Article 107067"},"PeriodicalIF":2.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147390934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Resveratrol inhibits lipid deposition via JAML/Sirt1 pathway in podocytes 白藜芦醇通过JAML/Sirt1途径抑制足细胞脂质沉积。
IF 2.5 3区 生物学
Prostaglandins & other lipid mediators Pub Date : 2026-03-01 Epub Date: 2026-02-13 DOI: 10.1016/j.prostaglandins.2026.107061
Wei Gu , Xiaolong Li , Kunjie Zheng , Xiangtuo Wang , Guangyao Song
{"title":"Resveratrol inhibits lipid deposition via JAML/Sirt1 pathway in podocytes","authors":"Wei Gu ,&nbsp;Xiaolong Li ,&nbsp;Kunjie Zheng ,&nbsp;Xiangtuo Wang ,&nbsp;Guangyao Song","doi":"10.1016/j.prostaglandins.2026.107061","DOIUrl":"10.1016/j.prostaglandins.2026.107061","url":null,"abstract":"<div><div>Lipid deposition plays a key role in the progression of diabetic kidney disease. We previously demonstrated that resveratrol modulates the junctional adhesion molecule-like protein (JAML)/Sirtuin 1 (Sirt1) pathway involved in lipid synthesis in the kidneys of mice under high-fat diet conditions, reducing lipid deposition. However, the specific mechanisms by which resveratrol affects palmitic acid (PA)-induced lipid accumulation and metabolism in podocytes remain unclear. In this study, we used mouse podocyte cell line 5 (MPC-5) to investigate the role of the JAML/Sirt1 pathway in <em>de novo</em> lipid synthesis. Resveratrol attenuated the abnormal expression of key components in the JAML/Sirt1 lipid synthesis pathway induced by PA in MPC-5 podocytes. Specifically, siRNA-mediated silencing of <em>JAML</em> increased Sirt1 expression in PA-treated MPC-5 podocytes, downregulating sterol regulatory element-binding protein-1, carbohydrate response element-binding protein, and adipose differentiation-related protein. In contrast, <em>JAML</em> overexpression reversed these effects. Resveratrol attenuated the metabolic abnormalities caused by <em>JAML</em> overexpression, suggesting that it inhibits intracellular lipid deposition in MPC-5 podocytes by regulating the JAML/Sirt1 pathway. Our findings provide new evidence that resveratrol improves lipid deposition in the kidneys and a new treatment strategy for renal diseases associated with lipid deposition in the kidneys.</div></div>","PeriodicalId":21161,"journal":{"name":"Prostaglandins & other lipid mediators","volume":"183 ","pages":"Article 107061"},"PeriodicalIF":2.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146202501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Cell metabolomics to reveal the mechanism of saponins and alkaloids on prostate inflammation via COX and LOX pathways 细胞代谢组学通过COX和LOX途径揭示皂苷和生物碱对前列腺炎症的作用机制。
IF 2.5 3区 生物学
Prostaglandins & other lipid mediators Pub Date : 2026-03-01 Epub Date: 2026-03-08 DOI: 10.1016/j.prostaglandins.2026.107066
Lili Liu , Lijuan Xue , Guiyue Hou , Jingxuan Zhang , Ling Tian , Xueqin Wang , Ronghua Dai
{"title":"Cell metabolomics to reveal the mechanism of saponins and alkaloids on prostate inflammation via COX and LOX pathways","authors":"Lili Liu ,&nbsp;Lijuan Xue ,&nbsp;Guiyue Hou ,&nbsp;Jingxuan Zhang ,&nbsp;Ling Tian ,&nbsp;Xueqin Wang ,&nbsp;Ronghua Dai","doi":"10.1016/j.prostaglandins.2026.107066","DOIUrl":"10.1016/j.prostaglandins.2026.107066","url":null,"abstract":"<div><div>Inflammation initiates and progresses due to overexpression of the arachidonic acid cascade mediators. Cyclooxygenase (COX) and lipoxygenase (LOX) are considered to be the primary targets, and the aim of this study was to assess the anti- inflammatory activity of several herbal compounds as dual COX-LOX inhibitors on prostatic diseases. Compounds Timosaponin AⅡ, timosaponin AⅢ, berberine and demethyleneberberine were selected according to our previous studies. Human prostate cancer cells (PC-3) were cultured and the cell viability was detected by CCK-8 method at different concentrations. Ultra high performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) was applied to monitor the changes of AA metabolites after treatment. Western blot and qPCR were used to detect COX-2 and LOX-5 at protein and mRNA levels, respectively. Additionally, the levels of inflammatory factors (IL-6, IL-1β, TNF-α) in each group were detected by ELISA. After drug interference, 13 altered metabolites associated with the COX/LOX pathway, including PGE<sub>2</sub>, 5-HETE, LTB<sub>4</sub>, etc. were identified in cell medium. Quantitative metabolomics analysis showed that the candidate compounds could significantly decreased the concentrations of dual target related metabolites to varying degrees (<em>P</em> &lt; 0.01). These compounds could also suppressed COX-2 and LOX-5 expression at the protein and mRNA levels simultaneously. Moreover, the levels of cytokine IL-6, IL-1β and TNF-α were also significantly reduced in the treated group compared to controls (<em>P</em> &lt; 0.05 or <em>P</em> &lt; 0.01). Our findings revealed the four active compounds were potential COX/LOX dual-target inhibitors, which inhibited a range of inflammatory responses by interfering with AA metabolism and down-regulating the levels of COX and LOX metabolites.</div></div>","PeriodicalId":21161,"journal":{"name":"Prostaglandins & other lipid mediators","volume":"183 ","pages":"Article 107066"},"PeriodicalIF":2.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147390931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Resolvin E1 and Resolvin E2 suppress cyclooxygenase-2 expression through ubiquitin-proteasome-mediated degradation in human macrophage-like U937 cells 在人巨噬细胞样U937细胞中,Resolvin E1和Resolvin E2通过泛素蛋白酶体介导的降解抑制环氧化酶2的表达。
IF 2.5 3区 生物学
Prostaglandins & other lipid mediators Pub Date : 2026-03-01 Epub Date: 2026-02-16 DOI: 10.1016/j.prostaglandins.2026.107064
Ayaka Hamaguchi , Hayato Fukuda , Mizuki Watanabe , Koichi Fujiwara , Keijo Fukushima , Satoshi Shuto , Hiromichi Fujino
{"title":"Resolvin E1 and Resolvin E2 suppress cyclooxygenase-2 expression through ubiquitin-proteasome-mediated degradation in human macrophage-like U937 cells","authors":"Ayaka Hamaguchi ,&nbsp;Hayato Fukuda ,&nbsp;Mizuki Watanabe ,&nbsp;Koichi Fujiwara ,&nbsp;Keijo Fukushima ,&nbsp;Satoshi Shuto ,&nbsp;Hiromichi Fujino","doi":"10.1016/j.prostaglandins.2026.107064","DOIUrl":"10.1016/j.prostaglandins.2026.107064","url":null,"abstract":"<div><div>Inflammatory responses comprise a crucial defense mechanism against infection and injury. Prostanoids, including prostaglandin E<sub>2</sub> (PGE<sub>2</sub>), are well-known to play important roles in the generation of inflammatory responses. However, their excessive or prolonged activation can cause tissue damage and drive the development of diseases. Resolvin E-series (RvEs), including RvE1, RvE2, and RvE3, are specialized pro-resolving mediators that actively promote the resolution of inflammation. Here, using human macrophage-like U937 cells, we show that RvE1 and RvE2, but not RvE3, suppressed protein expression of cyclooxygenase (COX)-2, an essential and inducible enzyme involved in prostanoid synthesis during the onset of inflammatory responses. Furthermore, the suppression of COX-2 protein expression by RvE1 and RvE2 was suggested to involve enhanced ubiquitin-proteasome-dependent degradation, resulting in the rapid reduction of PGE<sub>2</sub> production by decreasing functional COX-2. This is the first reported evidence that RvEs exert pro-resolving effects on macrophage-associated COX-2/PGE<sub>2</sub> signaling. Importantly, RvEs reduced COX-2 expression at the low concentration of 10 nM without affecting COX-1 expression. Thus, they may represent promising candidates for novel anti-inflammatory drugs with potentially fewer gastrointestinal side effects than exhibited by many nonsteroidal anti-inflammatory drugs.</div></div>","PeriodicalId":21161,"journal":{"name":"Prostaglandins & other lipid mediators","volume":"183 ","pages":"Article 107064"},"PeriodicalIF":2.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146220980","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Multiscale analysis of resolvin D1 biosynthesis and its neuroprotective role in intracerebral hemorrhage Resolvin D1生物合成及其在脑出血中的神经保护作用的多尺度分析。
IF 2.5 3区 生物学
Prostaglandins & other lipid mediators Pub Date : 2026-03-01 Epub Date: 2026-02-18 DOI: 10.1016/j.prostaglandins.2026.107063
Lv Xiaoyu , Zhang Ziyou , Liu Zhenlin , Li Zhuang , Sun Kai , Wang Siqi , Li Tong , Li Yunfei , Zhou Weixiu , Wang Yifan , Shi Chun , Zhang Bensi
{"title":"Multiscale analysis of resolvin D1 biosynthesis and its neuroprotective role in intracerebral hemorrhage","authors":"Lv Xiaoyu ,&nbsp;Zhang Ziyou ,&nbsp;Liu Zhenlin ,&nbsp;Li Zhuang ,&nbsp;Sun Kai ,&nbsp;Wang Siqi ,&nbsp;Li Tong ,&nbsp;Li Yunfei ,&nbsp;Zhou Weixiu ,&nbsp;Wang Yifan ,&nbsp;Shi Chun ,&nbsp;Zhang Bensi","doi":"10.1016/j.prostaglandins.2026.107063","DOIUrl":"10.1016/j.prostaglandins.2026.107063","url":null,"abstract":"<div><h3>Background</h3><div>Intracerebral hemorrhage (ICH) is a destructive cerebrovascular disease, whose secondary injury can trigger severe neuroinflammatory responses. Resolvin D1 (RvD1), as an endogenous specific pro-resolving mediator, has been demonstrated to possess significant anti-inflammatory effects. However, how brain networks relate to RvD1 biosynthesis and the therapeutic potential of RvD1 in post-hemorrhagic repair processes within the brain remain unclear.</div></div><div><h3>Methods</h3><div>Serum RvD1 levels were measured at admission and discharge in 40 ICH patients, and their correlation with neurological functional outcomes was analyzed. Combining neuroimaging and Mendelian randomization, we investigated the association between brain network integrity and genetically predicted plasma RvD1 levels. Network pharmacology identified key targets, and an oxyhemoglobin-induced BV2 microglial model validated RvD1’s <em>BDNF-</em>dependent anti-inflammatory and anti-apoptotic effects.</div></div><div><h3>Results</h3><div>Serum RvD1 levels decreased from admission to discharge during recovery, with significant correlation between its changes and neurological improvement. Neuroimaging and MR analysis revealed that brain network integrity is significantly associated with genetically predicted plasma RvD1 levels, partially explaining interindividual prognostic variation. Mechanistically, RvD1 modulates microglial metabolism, alleviates oxidative stress, and promotes anti-inflammatory polarization involving the <em>BDNF</em>/<em>AKT</em> signaling network.</div></div><div><h3>Conclusion</h3><div>Genetically predicted plasma RvD1 levels correlate with macro-level brain network integrity while simultaneously promoting micro-level neural repair. This approach overcomes limitations of previous single-pathway or static indicator studies, offering novel biomarkers and intervention strategies with predictive and therapeutic potential for ICH.</div></div>","PeriodicalId":21161,"journal":{"name":"Prostaglandins & other lipid mediators","volume":"183 ","pages":"Article 107063"},"PeriodicalIF":2.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146259036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Digoxin-induced gut dysbiosis: Mechanistic links to prostaglandin dysregulation and lipid metabolic imbalance 地高辛诱导的肠道生态失调:前列腺素失调和脂质代谢失衡的机制联系。
IF 2.5 3区 生物学
Prostaglandins & other lipid mediators Pub Date : 2026-01-01 Epub Date: 2025-12-21 DOI: 10.1016/j.prostaglandins.2025.107055
Nila Ganamurali , Sarvesh Sabarathinam
{"title":"Digoxin-induced gut dysbiosis: Mechanistic links to prostaglandin dysregulation and lipid metabolic imbalance","authors":"Nila Ganamurali ,&nbsp;Sarvesh Sabarathinam","doi":"10.1016/j.prostaglandins.2025.107055","DOIUrl":"10.1016/j.prostaglandins.2025.107055","url":null,"abstract":"<div><div>Digoxin, a cardiac glycoside with established roles in heart failure and arrhythmia, increasingly exemplifies drug–microbiome–host interactions. Its bioavailability and efficacy are profoundly influenced by <em>Eggerthella lenta</em>–mediated reduction, producing inactive metabolites that reshape systemic physiology. Emerging evidence demonstrates that digoxin-induced gut dysbiosis perturbs arachidonic acid metabolism, altering cyclooxygenase-driven prostaglandin production and disrupting vascular tone and inflammatory homeostasis. These changes extend to lipid regulation, where reduced short-chain fatty acid production and bile acid derangements impair hepatic lipid utilization, promoting steatosis and metabolic dysfunction. This review integrates mechanistic insights into digoxin–microbiota interactions, prostaglandin pathway perturbation, and lipid imbalance, emphasizing their clinical significance and therapeutic implications for precision medicine in cardiovascular care.</div></div>","PeriodicalId":21161,"journal":{"name":"Prostaglandins & other lipid mediators","volume":"182 ","pages":"Article 107055"},"PeriodicalIF":2.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145820433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
SREBF1 maintains the contractile phenotype of vascular smooth muscle cells via PPARγ signalling SREBF1通过PPARγ信号传导维持血管平滑肌细胞的收缩表型。
IF 2.5 3区 生物学
Prostaglandins & other lipid mediators Pub Date : 2026-01-01 Epub Date: 2025-12-16 DOI: 10.1016/j.prostaglandins.2025.107054
Xiaoying Chen , Huiling Jin , Guanyi Zheng
{"title":"SREBF1 maintains the contractile phenotype of vascular smooth muscle cells via PPARγ signalling","authors":"Xiaoying Chen ,&nbsp;Huiling Jin ,&nbsp;Guanyi Zheng","doi":"10.1016/j.prostaglandins.2025.107054","DOIUrl":"10.1016/j.prostaglandins.2025.107054","url":null,"abstract":"<div><h3>Background</h3><div>Atherosclerosis is a complex chronic inflammatory disease. Although SREBF1 has been implicated in the regulation of atherosclerotic progression, its precise mechanisms remain incompletely understood.</div></div><div><h3>Methods</h3><div>The study constructed an <em>in vitro</em> model of atherosclerosis by exposing vascular smooth muscle cells (VSMCs) to oxidized low-density lipoprotein. The model was validated through inverted microscopy, quantitative polymerase chain reaction, and western blotting. The effects of SREBF1 on VSMC’s functions, including proliferation, migration, and clonogenic capacity, were assessed using Cell Counting Kit-8 assays, scratch wound healing assays, and colony formation assays, and western blotting following SREBF1 knockdown or overexpression. The PPARγ signalling pathway was further examined by western blotting and dual-luciferase reporter gene assay.</div></div><div><h3>Results</h3><div>The experimental results demonstrated that knockdown of SREBF1 significantly enhanced VSMC proliferation and migration while suppressing the expression of the two contractile markers SM22α and α-SMA. Mechanistic studies revealed that SREBF1 directly upregulated PPARγ transcriptional activity, activated PPARγ expression, and inhibited phosphorylated PPARγ expression. Notably, the addition of GW9662, a specific PPARγ signalling inhibitor, partially reversed the regulatory effects of SREBF1 overexpression on VSMC proliferation, migration, and phenotype.</div></div><div><h3>Conclusion</h3><div>This research found that SREBF1 maintains the contractile phenotype of VSMCs by activating PPARγ signalling, suggesting that SREBF1 may serve as a key molecule in ameliorating atherosclerosis.</div></div>","PeriodicalId":21161,"journal":{"name":"Prostaglandins & other lipid mediators","volume":"182 ","pages":"Article 107054"},"PeriodicalIF":2.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145782692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Revealing the biochemical regulations of L-PGDS in hepatic insulin-resistance using HepG2 cells 利用HepG2细胞揭示L-PGDS在肝脏胰岛素抵抗中的生化调节作用
IF 2.5 3区 生物学
Prostaglandins & other lipid mediators Pub Date : 2026-01-01 Epub Date: 2025-12-10 DOI: 10.1016/j.prostaglandins.2025.107052
Rhema Khairnar, Md Asrarul Islam, Kuljeet Singh, Divya K. Shetty, Anjali Yadav, Vikas V. Dukhande, Sunil Kumar
{"title":"Revealing the biochemical regulations of L-PGDS in hepatic insulin-resistance using HepG2 cells","authors":"Rhema Khairnar,&nbsp;Md Asrarul Islam,&nbsp;Kuljeet Singh,&nbsp;Divya K. Shetty,&nbsp;Anjali Yadav,&nbsp;Vikas V. Dukhande,&nbsp;Sunil Kumar","doi":"10.1016/j.prostaglandins.2025.107052","DOIUrl":"10.1016/j.prostaglandins.2025.107052","url":null,"abstract":"<div><div>Metabolic dysfunction-associated steatotic liver disease (MASLD) is the most common chronic liver disease, and its prevalence poses a serious health threat globally. MASLD is a multifactorial hepatic disorder, but insulin resistance is a key player. Our prior <em>in vivo</em> studies revealed that the absence of lipocalin prostaglandin D<sub>2</sub> synthase (<span>L</span>-PGDS) leads to the development of MASLD, often coexisting with insulin resistance. Briefly, <span>L</span>-PGDS belongs to the arachidonic acid pathway and enzymatically catalyzes the conversion of prostaglandin H<sub>2</sub> to prostaglandin D<sub>2,</sub> which imparts physiological effects via DP1 and DP2 receptors. <span>L</span>-PGDS plays a crucial role in MASLD; however, its mechanistic regulation remains unexplored. Therefore, we aimed to study the biochemical regulation of <span>L</span>-PGDS using a cellular model of MASLD. We successfully recapitulated the MASLD phenotype in HepG2 cells by co-treating with palmitate and insulin. Our results showed significant downregulation of <span>L</span>-PGDS and decreased PGD<sub>2</sub> levels in an insulin-resistant state. To study this <span>L</span>-PGDS downregulation, we employed MG132, chloroquine, cycloheximide, and immunoprecipitation to assess proteasomal degradation, autophagy, translational activity, and ubiquitination, respectively. However, the above pathways were not involved. Interestingly, gene and protein expression results revealed the clues for <span>L</span>-PGDS downregulation, showing significantly decreased transcription and subsequently protein levels. Additionally, subcellular localization results showed that insulin resistance induced the trafficking of <span>L</span>-PGDS from the cytoplasm to the nucleus. In summary, <span>L</span>-PGDS downregulation possibly involves transcription-translation and/or subcellular localization pathways. However, further studies are required to delineate the molecular mechanism of <span>L</span>-PGDS downregulation and apply this knowledge to MASLD pathogenesis and treatment.</div></div>","PeriodicalId":21161,"journal":{"name":"Prostaglandins & other lipid mediators","volume":"182 ","pages":"Article 107052"},"PeriodicalIF":2.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145712351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Signaling pathways shaping the field of lipidomics 形成脂质组学领域的信号通路
IF 2.5 3区 生物学
Prostaglandins & other lipid mediators Pub Date : 2026-01-01 Epub Date: 2025-12-10 DOI: 10.1016/j.prostaglandins.2025.107053
Ehsan Pashay Ahi , Andrew H. House
{"title":"Signaling pathways shaping the field of lipidomics","authors":"Ehsan Pashay Ahi ,&nbsp;Andrew H. House","doi":"10.1016/j.prostaglandins.2025.107053","DOIUrl":"10.1016/j.prostaglandins.2025.107053","url":null,"abstract":"<div><div>Lipidomics, the comprehensive study of cellular lipids and their roles in biological systems, has become a transformative tool across diverse fields of biology and medicine. Beyond its applications in studying metabolic disorders and cancer, lipidomics is gaining importance in areas such as developmental biology, ecology, and evolution, revealing critical insights into cellular processes and organismal adaptations. However, interpreting lipidomics data at the molecular level, particularly through the lens of signaling pathways, remains a challenge. Despite the central role of signaling pathways in regulating lipid metabolism and signaling, no comprehensive review has systematically compiled these pathways or explored their significance in lipidomics research. This review addresses this gap by providing a structured, catalogue-like overview of signaling pathways that regulate or are influenced by lipid signals. It includes pathways fundamental to lipid metabolism and related lipid-based biological processes, as well as emerging lipid-dependent mechanisms underlying energy balance, environmental adaptation, and developmental processes. Each pathway is briefly discussed in the context of its molecular roles in lipidomics and its potential impact on diverse research fields. By compiling this knowledge, the review serves as a guide for interpreting lipidomics data, identifying key pathways for targeted research, and bridging connections with other scientific disciplines. This structured approach promotes the integration of lipidomics into broader biological contexts, advancing our understanding of lipid-mediated processes and fostering innovation across multiple fields of study.</div></div>","PeriodicalId":21161,"journal":{"name":"Prostaglandins & other lipid mediators","volume":"182 ","pages":"Article 107053"},"PeriodicalIF":2.5,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145738585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
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