Biochimica et biophysica acta. Molecular and cell biology of lipids最新文献

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Extracellular vesicles as a hydrolytic platform of secreted phospholipase A2 细胞外囊泡是分泌型磷脂酶 A2 的水解平台
IF 3.9 2区 生物学
Biochimica et biophysica acta. Molecular and cell biology of lipids Pub Date : 2024-07-18 DOI: 10.1016/j.bbalip.2024.159536
Makoto Murakami
{"title":"Extracellular vesicles as a hydrolytic platform of secreted phospholipase A2","authors":"Makoto Murakami","doi":"10.1016/j.bbalip.2024.159536","DOIUrl":"10.1016/j.bbalip.2024.159536","url":null,"abstract":"<div><p>Extracellular vesicles (EVs) represent small vesicles secreted from cells, including exosomes (40–150 nm in diameter), which are released via the multivesicular endosomal pathway, and microvesicles and ectosomes (100–1000 nm), which are produced by plasma membrane budding. Broadly, EVs also include vesicles generated from dying cells, such as apoptotic bodies (5–10 μm), as well as exomeres (&lt; 50 nm), which are very small, non-membranous nanoparticles. EVs play important roles in cell-to-cell signaling in various aspects of cancer, immunity, metabolism, and so on by transferring proteins, microRNAs (miRNAs), and metabolites as cargos from donor cells to recipient cells. Although lipids are one of the major components of EVs, they have long been recognized as merely the “wall” that partitions the lumen of the vesicle from the outside. However, it has recently become obvious that lipid composition of EVs influences their properties and functions, that EVs act as a carrier of a variety of lipid mediators, and that lipid mediators are produced in EV membranes by the hydrolytic action of secreted phospholipase A<sub>2</sub>s (sPLA<sub>2</sub>s). In this article, we will make an overview of the roles of lipids in EVs, with a particular focus on sPLA<sub>2</sub>-driven mobilization of lipid mediators from EVs and its biological significance.</p></div>","PeriodicalId":8815,"journal":{"name":"Biochimica et biophysica acta. Molecular and cell biology of lipids","volume":"1869 7","pages":"Article 159536"},"PeriodicalIF":3.9,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1388198124000866/pdfft?md5=9285bd7d715886c2a587b588b34e29e7&pid=1-s2.0-S1388198124000866-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141728695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Ilexgenin A inhibits lipid accumulation in macrophages and reduces the progression of atherosclerosis through PTPN2/ERK1/2/ABCA1 signalling pathway Ilexgenin A 可通过 PTPN2/ERK1/2/ABCA1 信号通路抑制巨噬细胞中的脂质积聚并减少动脉粥样硬化的进展。
IF 3.9 2区 生物学
Biochimica et biophysica acta. Molecular and cell biology of lipids Pub Date : 2024-07-14 DOI: 10.1016/j.bbalip.2024.159533
Qinyi Zhou , Yang Wang , Yaqiong Cheng , Jing Zhou , Wang Liu , Xiaofeng Ma , Shilin Tang , Shangshu Tang , Chaoke Tang
{"title":"Ilexgenin A inhibits lipid accumulation in macrophages and reduces the progression of atherosclerosis through PTPN2/ERK1/2/ABCA1 signalling pathway","authors":"Qinyi Zhou ,&nbsp;Yang Wang ,&nbsp;Yaqiong Cheng ,&nbsp;Jing Zhou ,&nbsp;Wang Liu ,&nbsp;Xiaofeng Ma ,&nbsp;Shilin Tang ,&nbsp;Shangshu Tang ,&nbsp;Chaoke Tang","doi":"10.1016/j.bbalip.2024.159533","DOIUrl":"10.1016/j.bbalip.2024.159533","url":null,"abstract":"<div><p>Macrophage lipid accumulation indicates a pathological change in atherosclerosis. Ilexgenin A (IA), a pentacyclic triterpenoid compound, plays a role in preventing inflammation, bacterial infection, and fatty liver and induces a potential anti-atherogenic effect. However, the anti-atherosclerotic mechanism remains unclear. The present study investigated the effects of IA on lipid accumulation in macrophage-derived foam cells and atherogenesis in apoE<sup>−/−</sup> mice. Our results indicated that the expression of adenosine triphosphate-binding cassette transporter A1 (ABCA1) was up-regulated by IA, promoting cholesterol efflux and reducing lipid accumulation in macrophages, which may be regulated by the protein tyrosine phosphatase non-receptor type 2 (PTPN2)/ERK1/2 signalling pathway. IA attenuated the progression of atherosclerosis in high-fat diet-fed apoE<sup>−/−</sup> mice. PTPN2 knockdown with siRNA or treatment with an ERK1/2 agonist (Ro 67–7476) impeded the effects of IA on ABCA1 upregulation and cholesterol efflux in macrophages. These results suggest that IA inhibits macrophage lipid accumulation and alleviates atherosclerosis progression via the PTPN2/ERK1/2 signalling pathway.</p></div>","PeriodicalId":8815,"journal":{"name":"Biochimica et biophysica acta. Molecular and cell biology of lipids","volume":"1869 7","pages":"Article 159533"},"PeriodicalIF":3.9,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141619209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
The role of nonesterified fatty acids in cancer biology: Focus on tryptophan and related metabolism 非酯化脂肪酸在癌症生物学中的作用:关注色氨酸及相关代谢。
IF 3.9 2区 生物学
Biochimica et biophysica acta. Molecular and cell biology of lipids Pub Date : 2024-07-08 DOI: 10.1016/j.bbalip.2024.159531
{"title":"The role of nonesterified fatty acids in cancer biology: Focus on tryptophan and related metabolism","authors":"","doi":"10.1016/j.bbalip.2024.159531","DOIUrl":"10.1016/j.bbalip.2024.159531","url":null,"abstract":"<div><p>Plasma nonesterified fatty acids (NEFA) are elevated in cancer, because of decreased albumin levels and of fatty acid oxidation, and increased fatty acid synthesis and lipolysis. Albumin depletion and NEFA elevation maximally release albumin-bound tryptophan (Trp) and increase its flux down the kynurenine pathway, leading to increased production of proinflammatory kynurenine metabolites, which tumors use to undermine T-cell function and achieve immune escape. Activation of the aryl hydrocarbon receptor by kynurenic acid promotes extrahepatic Trp degradation by indoleamine 2,3-dioxygenase and leads to upregulation of poly (ADP-ribose) polymerase, activation of which and also of SIRT1 (silent mating type information regulation 2 homolog 1) could lead to depletion of NAD<sup>+</sup> and ATP, resulting in cell death. NEFA also modulate heme synthesis and degradation, changes in which impact homocysteine metabolism and production of reduced glutathione and hydrogen sulphide. The significance of the interactions between heme and homocysteine metabolism in cancer biology has received little attention. Targeting Trp disposition in cancer to prevent the NEFA effects is suggested.</p></div>","PeriodicalId":8815,"journal":{"name":"Biochimica et biophysica acta. Molecular and cell biology of lipids","volume":"1869 7","pages":"Article 159531"},"PeriodicalIF":3.9,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141578908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Integrator complex subunit 6 promotes hepatocellular steatosis via β-catenin-PPARγ axis 整合器复合体亚基 6 通过 β-catenin-PPARγ 轴促进肝细胞脂肪变性
IF 3.9 2区 生物学
Biochimica et biophysica acta. Molecular and cell biology of lipids Pub Date : 2024-07-07 DOI: 10.1016/j.bbalip.2024.159532
{"title":"Integrator complex subunit 6 promotes hepatocellular steatosis via β-catenin-PPARγ axis","authors":"","doi":"10.1016/j.bbalip.2024.159532","DOIUrl":"10.1016/j.bbalip.2024.159532","url":null,"abstract":"<div><p>Hepatic adipogenesis has common mechanisms with adipocyte differentiation such as PPARγ involvement and the induction of adipose tissue-specific molecules. A previous report demonstrated that integrator complex subunit 6 (INTS6) is required for adipocyte differentiation. This study aimed to investigate INTS6 expression and its role in hepatic steatosis progression. The expression of INTS6 and PPARγ was examined in the liver of a mouse model of steatohepatitis and in paired liver biopsy samples from 11 patients with severe obesity and histologically proven metabolic dysfunction associated steatohepatitis (MASH) before and one year after bariatric surgery. To induce hepatocellular steatosis in vitro, an immortalized human hepatocyte cell line Hc3716 was treated with free fatty acids. In the steatohepatitis mouse model, we observed hepatic induction of INTS6, PPARγ, and adipocyte-specific genes. In contrast, β-catenin which negatively regulates PPARγ was reduced. Biopsied human livers demonstrated a strong positive correlation (r<sup>2</sup> = 0.8755) between INTS6 and PPARγ mRNA levels. After bariatric surgery, gene expressions of PPARγ, FABP4, and CD36 were mostly downregulated. In our in vitro experiments, we observed a concentration-dependent increase in Oil Red O staining in Hc3716 cells after treatment with the free fatty acids. Alongside this change, the expression of INTS6, PPARγ, and adipocyte-specific genes was induced. INTS6 knockdown using siRNA significantly suppressed cellular lipid accumulation together with induction of β-catenin and PPARγ downregulation. Collectively, INTS6 expression closely correlates with PPARγ. INTS6 suppression significantly reduced hepatocyte steatosis via β-catenin-PPARγ axis, indicating that INTS6 could be a novel therapeutic target for treating MASH.</p></div>","PeriodicalId":8815,"journal":{"name":"Biochimica et biophysica acta. Molecular and cell biology of lipids","volume":"1869 7","pages":"Article 159532"},"PeriodicalIF":3.9,"publicationDate":"2024-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141562571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Disruption of the peripheral biological clock may play a role in sleep deprivation-induced dysregulation of lipid metabolism in both the daytime and nighttime phases 外周生物钟紊乱可能是睡眠不足引起的昼夜脂质代谢失调的原因之一。
IF 3.9 2区 生物学
Biochimica et biophysica acta. Molecular and cell biology of lipids Pub Date : 2024-07-02 DOI: 10.1016/j.bbalip.2024.159530
Chufan Zhou , Ziping Hu , Xuan Liu , Yuefan Wang , Shougang Wei , Zhifeng Liu
{"title":"Disruption of the peripheral biological clock may play a role in sleep deprivation-induced dysregulation of lipid metabolism in both the daytime and nighttime phases","authors":"Chufan Zhou ,&nbsp;Ziping Hu ,&nbsp;Xuan Liu ,&nbsp;Yuefan Wang ,&nbsp;Shougang Wei ,&nbsp;Zhifeng Liu","doi":"10.1016/j.bbalip.2024.159530","DOIUrl":"10.1016/j.bbalip.2024.159530","url":null,"abstract":"<div><h3>Study objectives</h3><p>This study aimed to examine the effect of sleep deprivation (SD) on lipid metabolism or lipid metabolism regulation in the liver and white adipose tissue (WAT) during the light and dark phases and <strong>explored the</strong> possible mechanisms underlying the diurnal effect of SD on lipid metabolism associated with clock genes.</p></div><div><h3>Methods</h3><p>Male C57BL/6J mice aged 2 months were deprived of sleep daily for 20 h for ten consecutive days with weakly forced locomotion. The body weights and food consumption levels of the SD and control mice were recorded, and the mice were then sacrificed at ZT (zeitgeber time) 2 and ZT 14. The peripheral clock genes, enzymes involved in fat synthesis and catabolism in the WAT, and melatonin signalling pathway-mediated lipid metabolism in the liver were assessed. Untargeted metabolomics and tandem mass tag (TMT) proteomics were used to identify differential lipid metabolism pathways in the liver.</p></div><div><h3>Results</h3><p>Bodyweight gain and daily food consumption were dramatically elevated after SD. Profound disruptions in the diurnal regulation of the hepatic peripheral clock and enzymes involved in fat synthesis and catabolism in the WAT were observed, with a strong emphasis on hepatic lipid metabolic pathways, while melatonin signalling pathway-mediated lipid metabolism exhibited moderate changes.</p></div><div><h3>Conclusions</h3><p>In mice, ten consecutive days of SD increased body weight gain and daily food consumption. In addition, SD profoundly disrupted lipid metabolism in the WAT and liver during the light and dark periods. These diurnal changes may be related to disorders of the peripheral biological clock.</p></div>","PeriodicalId":8815,"journal":{"name":"Biochimica et biophysica acta. Molecular and cell biology of lipids","volume":"1869 7","pages":"Article 159530"},"PeriodicalIF":3.9,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141533483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Mammalian START-like phosphatidylinositol transfer proteins – Physiological perspectives and roles in cancer biology 哺乳动物 START 类磷脂酰肌醇转移蛋白--生理学视角和在癌症生物学中的作用。
IF 3.9 2区 生物学
Biochimica et biophysica acta. Molecular and cell biology of lipids Pub Date : 2024-06-28 DOI: 10.1016/j.bbalip.2024.159529
{"title":"Mammalian START-like phosphatidylinositol transfer proteins – Physiological perspectives and roles in cancer biology","authors":"","doi":"10.1016/j.bbalip.2024.159529","DOIUrl":"10.1016/j.bbalip.2024.159529","url":null,"abstract":"<div><p>PtdIns and its phosphorylated derivatives, the phosphoinositides, are the biochemical components of a major pathway of intracellular signaling in all eukaryotic cells. These lipids are few in terms of cohort of unique positional isomers, and are quantitatively minor species of the bulk cellular lipidome. Nevertheless, phosphoinositides regulate an impressively diverse set of biological processes. It is from that perspective that perturbations in phosphoinositide-dependent signaling pathways are increasingly being recognized as causal foundations of many human diseases – including cancer. Although phosphatidylinositol transfer proteins (PITPs) are not enzymes, these proteins are physiologically significant regulators of phosphoinositide signaling. As such, PITPs are conserved throughout the eukaryotic kingdom. Their biological importance notwithstanding, PITPs remain understudied. Herein, we review current information regarding PITP biology primarily focusing on how derangements in PITP function disrupt key signaling/developmental pathways and are associated with a growing list of pathologies in mammals.</p></div>","PeriodicalId":8815,"journal":{"name":"Biochimica et biophysica acta. Molecular and cell biology of lipids","volume":"1869 7","pages":"Article 159529"},"PeriodicalIF":3.9,"publicationDate":"2024-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141465921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Lipid signature associated with chronic colon inflammation reveals a dysregulation in colonocyte differentiation process 与慢性结肠炎相关的脂质特征揭示了结肠细胞分化过程的失调。
IF 3.9 2区 生物学
Biochimica et biophysica acta. Molecular and cell biology of lipids Pub Date : 2024-06-25 DOI: 10.1016/j.bbalip.2024.159528
Albert Maimó-Barceló , Lucía Martín-Saiz , Maria Barceló-Nicolau , Simona Salivo , Karim Pérez-Romero , Ramon M. Rodriguez , Javier Martín , Marco A. Martínez , Marcelo García , Isabel Amengual , Daniel Ginard , José A. Fernández , Gwendolyn Barceló-Coblijn
{"title":"Lipid signature associated with chronic colon inflammation reveals a dysregulation in colonocyte differentiation process","authors":"Albert Maimó-Barceló ,&nbsp;Lucía Martín-Saiz ,&nbsp;Maria Barceló-Nicolau ,&nbsp;Simona Salivo ,&nbsp;Karim Pérez-Romero ,&nbsp;Ramon M. Rodriguez ,&nbsp;Javier Martín ,&nbsp;Marco A. Martínez ,&nbsp;Marcelo García ,&nbsp;Isabel Amengual ,&nbsp;Daniel Ginard ,&nbsp;José A. Fernández ,&nbsp;Gwendolyn Barceló-Coblijn","doi":"10.1016/j.bbalip.2024.159528","DOIUrl":"10.1016/j.bbalip.2024.159528","url":null,"abstract":"<div><p>Inflammatory Bowel Disease (IBD) comprises a heterogeneous group of chronic inflammatory conditions of the gastrointestinal tract that include ulcerative colitis (UC) and Crohn's disease. Although the etiology is not well understood, IBD is characterized by a loss of the normal epithelium homeostasis that disrupts the intestinal barrier of these patients. Previous work by our group demonstrated that epithelial homeostasis along the colonic crypts involves a tight regulation of lipid profiles. To evaluate whether lipidomic profiles conveyed the functional alterations observed in the colonic epithelium of IBD, we performed matrix-assisted laser desorption ionization-mass spectrometry imaging (MALDI-MSI) analyses of endoscopic biopsies from inflamed and non-inflamed segments obtained from UC patients. Our results indicated that lipid profiling of epithelial cells discriminated between healthy and UC patients. We also demonstrated that epithelial cells of the inflamed mucosa were characterized by a decrease in mono- and di-unsaturated fatty acid-containing phospholipids and higher levels of arachidonic acid-containing species, suggesting an alteration of the lipid gradients occurring concomitantly to the epithelial differentiation. This result was reinforced by the immunofluorescence analysis of EPHB2 and HPGD, markers of epithelial cell differentiation, sustaining that altered lipid profiles were at least partially due to a faulty differentiation process. Overall, our results showed that lipid profiling by MALDI-MSI faithfully conveys molecular and functional alterations associated with the inflamed epithelium, providing the foundation for a novel molecular characterization of UC patients.</p></div>","PeriodicalId":8815,"journal":{"name":"Biochimica et biophysica acta. Molecular and cell biology of lipids","volume":"1869 7","pages":"Article 159528"},"PeriodicalIF":3.9,"publicationDate":"2024-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141465922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Differentiating human phospholipase A2's activity toward phosphatidylinositol, phosphatidylinositol phosphate and phosphatidylinositol bisphosphate 区分人类磷脂酶 A2 对磷脂酰肌醇、磷脂酰肌醇磷酸酯和磷脂酰肌醇二磷酸酯的活性。
IF 3.9 2区 生物学
Biochimica et biophysica acta. Molecular and cell biology of lipids Pub Date : 2024-06-23 DOI: 10.1016/j.bbalip.2024.159527
Daiki Hayashi , Edward A. Dennis
{"title":"Differentiating human phospholipase A2's activity toward phosphatidylinositol, phosphatidylinositol phosphate and phosphatidylinositol bisphosphate","authors":"Daiki Hayashi ,&nbsp;Edward A. Dennis","doi":"10.1016/j.bbalip.2024.159527","DOIUrl":"10.1016/j.bbalip.2024.159527","url":null,"abstract":"<div><p>Phospholipase A<sub>2</sub>'s (PLA<sub>2</sub>'s) constitute a superfamily of enzymes that hydrolyze the <em>sn</em>-2 fatty acyl chain on glycerophospholipids. We have previously reported that each PLA<sub>2</sub> Type shows a unique substrate specificity for the molecular species it hydrolyzes, especially the acyl chain that is cleaved from the <em>sn</em>-2 position and to some extent the polar group. However, phosphatidylinositol (PI) and PI phosphates (PIPs) have not been as well studied as substrates as other phospholipids because the PIPs require adaptation of the standard analysis methods, but they are important <em>in vivo</em>. We determined the <em>in vitro</em> activity of the three major types of human PLA<sub>2</sub>'s, namely the cytosolic (c), calcium-independent (i), and secreted (s) PLA<sub>2</sub><sup>'</sup>s toward PI, PI-4-phosphate (PI(4)P), and PI-4,5-bisphosphate (PI(4,5)P<sub>2</sub>). The <em>in vitro</em> assay revealed that Group IVA cPLA<sub>2</sub> (GIVA cPLA<sub>2</sub>) showed relatively high activity toward PI and PI(4)P among the tested PLA<sub>2</sub>'s; nevertheless, the highly hydrophilic headgroup disrupted the interaction between the lipid surface and the enzyme. GIVA cPLA<sub>2</sub> and GVIA iPLA<sub>2</sub> showed detectable activity toward PI(4,5)P<sub>2</sub>, but it appeared to be a poorer substrate for all of the PLA<sub>2</sub>'s tested. Furthermore, molecular dynamics (MD) simulations demonstrated that Thr416 and Glu418 of GIVA cPLA<sub>2</sub> contribute significantly to accommodating the hydrophilic head groups of PI and PI(4)P, which could explain some selectivity for PI and PI(4)P. These results indicated that GIVA cPLA<sub>2</sub> can accommodate PI and PI(4)P in its active site and hydrolyze them, suggesting that the GIVA cPLA<sub>2</sub> may best account for the PI and PIP hydrolysis in living cells.</p></div>","PeriodicalId":8815,"journal":{"name":"Biochimica et biophysica acta. Molecular and cell biology of lipids","volume":"1869 7","pages":"Article 159527"},"PeriodicalIF":3.9,"publicationDate":"2024-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1388198124000775/pdfft?md5=23d286a293fc0a12ab4dc508fd26a0b7&pid=1-s2.0-S1388198124000775-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141452706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Increased obesogenic action of palmitic acid during early stage of adipogenesis 在脂肪生成的早期阶段,棕榈酸会增加致肥作用。
IF 4.8 2区 生物学
Biochimica et biophysica acta. Molecular and cell biology of lipids Pub Date : 2024-06-12 DOI: 10.1016/j.bbalip.2024.159525
Ewa Stanek , Krzysztof Czamara , Agnieszka Kaczor
{"title":"Increased obesogenic action of palmitic acid during early stage of adipogenesis","authors":"Ewa Stanek ,&nbsp;Krzysztof Czamara ,&nbsp;Agnieszka Kaczor","doi":"10.1016/j.bbalip.2024.159525","DOIUrl":"10.1016/j.bbalip.2024.159525","url":null,"abstract":"<div><p>The functional differences between preadipocytes and fully differentiated mature adipocytes derived from stromal vascular fraction stem cells, as well as primary adipocytes have been analysed by evaluating their response to the obesogenic factor (a saturated fatty acid) and TNF-triggered inflammation. The analysis of single adipocytes shows that the saturated fatty acid (palmitic acid) accumulation is accompanied by inflammation and considerably dependent on the stage of the adipogenesis. In particular, preadipocytes show the exceptional potential for palmitic acid uptake resulting in their hypertrophy and the elevated cellular expression of the inflammation marker (ICAM-1). Our research provides new information on the impact of obesogenic factors on preadipocytes that is important in the light of childhood obesity prevention.</p></div>","PeriodicalId":8815,"journal":{"name":"Biochimica et biophysica acta. Molecular and cell biology of lipids","volume":"1869 7","pages":"Article 159525"},"PeriodicalIF":4.8,"publicationDate":"2024-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1388198124000751/pdfft?md5=94478df13680f623ff6081e27a983da1&pid=1-s2.0-S1388198124000751-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141320399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Liver phospholipid fatty acid composition in response to chronic high-fat diets 肝磷脂脂肪酸组成对长期高脂肪饮食的反应
IF 4.8 2区 生物学
Biochimica et biophysica acta. Molecular and cell biology of lipids Pub Date : 2024-06-12 DOI: 10.1016/j.bbalip.2024.159526
Tamara Popović , Aleksandra Nenadović , Anica Stanković , Jasmina Debeljak Martačić , Slavica Ranković , Sanjin Kovačević , Jelena Nešović Ostojić , Andjelija Ilić , Jelena Milašin , Silvio De Luka , Alexander M. Trbovichch
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