Journal of molecular and cellular cardiology plus最新文献

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P-, E-, and H-cadherins differ in their relationships with coronary stenosis, cardiovascular outcomes, and unplanned recurrent revascularization P-、E-和H-粘连蛋白与冠状动脉狭窄、心血管预后和计划外复发性血管再通的关系不同
Journal of molecular and cellular cardiology plus Pub Date : 2024-09-01 DOI: 10.1016/j.jmccpl.2024.100091
Nadezhda G. Gumanova , Dmitry K. Vasilyev , Natalya L. Bogdanova , Yaroslav I. Havrichenko , Oxana M. Drapkina
{"title":"P-, E-, and H-cadherins differ in their relationships with coronary stenosis, cardiovascular outcomes, and unplanned recurrent revascularization","authors":"Nadezhda G. Gumanova ,&nbsp;Dmitry K. Vasilyev ,&nbsp;Natalya L. Bogdanova ,&nbsp;Yaroslav I. Havrichenko ,&nbsp;Oxana M. Drapkina","doi":"10.1016/j.jmccpl.2024.100091","DOIUrl":"10.1016/j.jmccpl.2024.100091","url":null,"abstract":"<div><h3>Background and aims</h3><p>Cadherins are adhesion proteins, and their dysregulation may result in the development of atherosclerosis, plaque rupture, or lesions of the vascular wall. The aim of the present study was to detect the associations of cadherins-P, −E, and <img>H, with atherosclerosis and pathological cardiovascular conditions.</p></div><div><h3>Methods and results</h3><p>The present study with 3-year follow up evaluated atherosclerosis and fasting levels of P-, E-, and H-cadherins in the serum samples of 214 patients in a hospital setting. Coronary lesions were assessed by coronary angiography as Gensini score. Serum proteomic profiling was performed using antibody microarrays. The contents of P-, E-, and H-cadherins in the serum were measured using indirect ELISA. High levels of P- and E-cadherins and low levels of H-cadherin were associated with severity of atherosclerosis. High levels of P- and E-cadherins were associated with higher incidence of nonfatal cardiovascular outcomes. E-cadherin was associated with higher incidence of recurrent revascularization during 3 year follow-up. The results of Spearman rank correlation analysis revealed various associations of the three cadherins with lipid, endothelial, and metabolic biomarkers.</p></div><div><h3>Conclusions</h3><p>The data indicated that classical and atypical cadherins were associated with atherosclerosis progression. Elevated levels of P-cadherin were associated with coronary atherosclerosis. The data indicated that various lipid, endothelial, and metabolic biomarkers may influence the levels of cadherins. Thus, P-, E-, and H-cadherins may be promising markers for the assessment of cardiovascular risk.</p></div>","PeriodicalId":73835,"journal":{"name":"Journal of molecular and cellular cardiology plus","volume":"9 ","pages":"Article 100091"},"PeriodicalIF":0.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S277297612400031X/pdfft?md5=c09976a177a807ea7c2d8cb942485491&pid=1-s2.0-S277297612400031X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142149210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sex differences in cardiac mitochondrial respiration and reactive oxygen species production may predispose Scn1a−/+ mice to cardiac arrhythmias and Sudden Unexpected Death in Epilepsy 心脏线粒体呼吸和活性氧生成的性别差异可能使 Scn1a-/+ 小鼠易患心律失常和癫痫性意外猝死
Journal of molecular and cellular cardiology plus Pub Date : 2024-08-22 DOI: 10.1016/j.jmccpl.2024.100090
Jessa L. Aldridge, Emily Davis Alexander, Allison A. Franklin, Elizabeth Harrington, Farah Al-Ghzawi, Chad R. Frasier
{"title":"Sex differences in cardiac mitochondrial respiration and reactive oxygen species production may predispose Scn1a−/+ mice to cardiac arrhythmias and Sudden Unexpected Death in Epilepsy","authors":"Jessa L. Aldridge,&nbsp;Emily Davis Alexander,&nbsp;Allison A. Franklin,&nbsp;Elizabeth Harrington,&nbsp;Farah Al-Ghzawi,&nbsp;Chad R. Frasier","doi":"10.1016/j.jmccpl.2024.100090","DOIUrl":"10.1016/j.jmccpl.2024.100090","url":null,"abstract":"<div><p>Dravet Syndrome (DS) is a pediatric-onset epilepsy with an elevated risk of Sudden Unexpected Death in Epilepsy (SUDEP). Most individuals with DS possess mutations in the voltage-gated sodium channel gene <em>Scn1a</em>, expressed in both the brain and heart. Previously, mutations in <em>Scn1a</em> have been linked to arrhythmia. We used a <em>Scn1a</em><sup><em>−/+</em></sup> DS mouse model to investigate changes to cardiac mitochondrial function that may underlie arrhythmias and SUDEP. We detected significant alterations in mitochondrial bioenergetics that were sex-specific. Mitochondria from male <em>Scn1a</em><sup>−/+</sup> hearts had deficits in maximal (<em>p</em> = 0.02) and Complex II-linked respiration (<em>p</em> = 0.03). Male <em>Scn1a</em><sup><em>−/+</em></sup> mice were also more susceptible to cardiac arrhythmias under increased workload. When isolated cardiomyocytes were subjected to diamide, cardiomyocytes from male <em>Scn1a</em><sup><em>−/+</em></sup> hearts were less resistant to thiol oxidation. They had decreased survivability compared to <em>Scn1a</em><sup><em>+/+</em></sup> (<em>p</em> = 0.02) despite no whole-heart differences. Lastly, there were no changes in mitochondrial ROS production between DS and wild-type mitochondria at basal conditions, but <em>Scn1a</em><sup><em>−/+</em></sup> mitochondria accumulated more ROS during hypoxia/reperfusion. This study determines novel sex-linked differences in mitochondrial and antioxidant function in <em>Scn1a</em>-linked DS. Importantly, we found that male <em>Scn1a</em><sup><em>−/+</em></sup> mice are more susceptible to cardiac arrhythmias than female <em>Scn1a</em><sup><em>−/+</em></sup> mice. When developing new therapeutics to address SUDEP risk in DS, sex should be considered.</p></div>","PeriodicalId":73835,"journal":{"name":"Journal of molecular and cellular cardiology plus","volume":"9 ","pages":"Article 100090"},"PeriodicalIF":0.0,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772976124000308/pdfft?md5=2da615d16145cdfd13dc6d32f23a5506&pid=1-s2.0-S2772976124000308-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142041131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Female cardioprotection in ischemia/reperfusion: Isn't a SUR thing anymore? 缺血/再灌注中的女性心脏保护:不再是SUR的事情了吗?
Journal of molecular and cellular cardiology plus Pub Date : 2024-08-13 eCollection Date: 2024-12-01 DOI: 10.1016/j.jmccpl.2024.100089
Annalara G Fischer, Helen E Collins
{"title":"Female cardioprotection in ischemia/reperfusion: Isn't a SUR thing anymore?","authors":"Annalara G Fischer, Helen E Collins","doi":"10.1016/j.jmccpl.2024.100089","DOIUrl":"10.1016/j.jmccpl.2024.100089","url":null,"abstract":"","PeriodicalId":73835,"journal":{"name":"Journal of molecular and cellular cardiology plus","volume":"10 ","pages":"100089"},"PeriodicalIF":0.0,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11708239/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142973807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cardiac overexpression of a mitochondrial SUR2A splice variant impairs cardiac function and worsens myocardial ischemia reperfusion injury in female mice 线粒体 SUR2A 剪接变体的心脏过表达会损害雌性小鼠的心脏功能并加重心肌缺血再灌注损伤
Journal of molecular and cellular cardiology plus Pub Date : 2024-08-13 DOI: 10.1016/j.jmccpl.2024.100088
Allison C. Wexler , Holly Dooge , Sarah El-Meanawy , Elizabeth Santos , Timothy Hacker , Aditya Tewari , Francisco J. Alvarado , Mohun Ramratnam
{"title":"Cardiac overexpression of a mitochondrial SUR2A splice variant impairs cardiac function and worsens myocardial ischemia reperfusion injury in female mice","authors":"Allison C. Wexler ,&nbsp;Holly Dooge ,&nbsp;Sarah El-Meanawy ,&nbsp;Elizabeth Santos ,&nbsp;Timothy Hacker ,&nbsp;Aditya Tewari ,&nbsp;Francisco J. Alvarado ,&nbsp;Mohun Ramratnam","doi":"10.1016/j.jmccpl.2024.100088","DOIUrl":"10.1016/j.jmccpl.2024.100088","url":null,"abstract":"<div><p>The small splice variant of the sulfonylurea receptor protein isoform 2 A (SUR2A-55) targets mitochondria and enhances mitoK<sub>ATP</sub> activity. In male mice the overexpression of this protein promotes cardioprotection, reducing myocardial injury after an ischemic insult. However, it is unclear what impact SUR2A-55 overexpression has on the female myocardium. To investigate the impact of SU2R2A-55 on the female heart, mice with cardiac specific transgenic overexpression of SUR2A-55 (TG<sup>SUR2A-55</sup>) were examined by resting echocardiography and histopathology. In addition, hearts were subjected to ischemia reperfusion (IR) injury. Female TG<sup>SUR2A-55</sup> mice had resting LV dysfunction and worse hemodynamic recovery with increased infarct size after IR injury. RNA-seq analysis found 227 differential expressed genes between WT and TG<sup>SUR2A-55</sup> female mouse hearts that were enriched in pathways of cellular metabolism. This was in direct contrast to male mice that had only four differentially expressed genes. Female TG<sup>SUR2A-55</sup> mice compared to female WT mice had reduced cardiomyocyte mitochondrial membrane potential without a change in electron transport chain protein expression. In addition, isolated mitochondria from female TG<sup>SUR2A-55</sup> hearts displayed reduced sensitivity to ATP and diazoxide suggestive of increased mitoK<sub>ATP</sub> activity. In conclusion, our data suggests that female TG<sup>SUR2A-55</sup> mice are unable to tolerate a more active mitoK<sub>ATP</sub> channel leading to LV dysfunction and worse response to IR injury. This is in direct contrast to our prior report showing cardioprotection in male mice overexpressing SUR2A-55 in heart. Future research directed at examining the expression and activity of mitoK<sub>ATP</sub> subunits according to sex may elucidate different treatments for male and female patients.</p></div>","PeriodicalId":73835,"journal":{"name":"Journal of molecular and cellular cardiology plus","volume":"9 ","pages":"Article 100088"},"PeriodicalIF":0.0,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S277297612400028X/pdfft?md5=c267e0fb6c4d3b479f2f56a6cc684dd8&pid=1-s2.0-S277297612400028X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141997550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Applying adipose tissue-derived stem cell therapies as a novel treatment for atherosclerotic plaque development: Importance of appropriate dosing. 应用脂肪组织源性干细胞疗法作为动脉粥样硬化斑块发展的新疗法:适当剂量的重要性。
Journal of molecular and cellular cardiology plus Pub Date : 2024-08-03 eCollection Date: 2024-12-01 DOI: 10.1016/j.jmccpl.2024.100086
Michael F Allen, Song-Young Park
{"title":"Applying adipose tissue-derived stem cell therapies as a novel treatment for atherosclerotic plaque development: Importance of appropriate dosing.","authors":"Michael F Allen, Song-Young Park","doi":"10.1016/j.jmccpl.2024.100086","DOIUrl":"10.1016/j.jmccpl.2024.100086","url":null,"abstract":"","PeriodicalId":73835,"journal":{"name":"Journal of molecular and cellular cardiology plus","volume":"10 ","pages":"100086"},"PeriodicalIF":0.0,"publicationDate":"2024-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11708246/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142973781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sex steroid hormones and atrial electrophysiology: Vive la difference! 性类固醇激素与心房电生理:差异万岁!
Journal of molecular and cellular cardiology plus Pub Date : 2024-08-02 eCollection Date: 2024-12-01 DOI: 10.1016/j.jmccpl.2024.100087
Elise S Bisset, Susan E Howlett
{"title":"Sex steroid hormones and atrial electrophysiology: Vive la difference!","authors":"Elise S Bisset, Susan E Howlett","doi":"10.1016/j.jmccpl.2024.100087","DOIUrl":"10.1016/j.jmccpl.2024.100087","url":null,"abstract":"","PeriodicalId":73835,"journal":{"name":"Journal of molecular and cellular cardiology plus","volume":"10 ","pages":"100087"},"PeriodicalIF":0.0,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11708309/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142973845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cardiac growth patterns and metabolism before and after birth in swine: Role of miR in proliferation, hypertrophy and metabolism 猪出生前后的心脏生长模式和新陈代谢:miR 在增殖、肥大和代谢中的作用
Journal of molecular and cellular cardiology plus Pub Date : 2024-07-18 DOI: 10.1016/j.jmccpl.2024.100084
Catherine G. Dimasi , Jack R.T. Darby , Stacey L. Holman , Megan Quinn , Ashley S. Meakin , Mike Seed , Michael D. Wiese , Janna L. Morrison
{"title":"Cardiac growth patterns and metabolism before and after birth in swine: Role of miR in proliferation, hypertrophy and metabolism","authors":"Catherine G. Dimasi ,&nbsp;Jack R.T. Darby ,&nbsp;Stacey L. Holman ,&nbsp;Megan Quinn ,&nbsp;Ashley S. Meakin ,&nbsp;Mike Seed ,&nbsp;Michael D. Wiese ,&nbsp;Janna L. Morrison","doi":"10.1016/j.jmccpl.2024.100084","DOIUrl":"10.1016/j.jmccpl.2024.100084","url":null,"abstract":"<div><p>The adult mammalian heart is unable to undergo cardiac repair, limiting potential treatment options after cardiac damage. However, the fetal heart is capable of cardiac repair. In preparation for birth, cardiomyocytes (CMs) undergo major maturational changes that include exit from the cell cycle, hypertrophic growth, and mitochondrial maturation. The timing and regulation of such events in large mammals is not fully understood. In the present study, we aimed to assess this critical CM transition period using pigs as a preclinically relevant model. Left ventricular myocardium from Large White cross Landrace gilts was collected at 91, 98, 106 and 111–113 days gestation (d GA; term = 115d GA) and in piglets at 0–1, 4–5, 14–18, 19–20 days after birth. We found that miR-133a, which has known roles in CM proliferation, was significantly downregulated before birth, before rising postnatally. Likewise, gene expression of <em>PCNA</em> and <em>CDK1</em> was repressed until birth with a rise postnatally, suggesting a decline in proliferation during late gestation followed by the onset of multinucleation in postnatal life. The timing of the switch in myocardial metabolism was unclear; however, complexes within the electron transport chain and mitochondrial biogenesis followed a similar pattern of decreasing abundance during late gestation and then a rise postnatally. These data suggest that CM maturation events such as cell cycle arrest and mitochondrial maturation occur around birth. These results may prove important to consider for preclinical applications such as the development of new therapeutics for cardiac repair.</p></div>","PeriodicalId":73835,"journal":{"name":"Journal of molecular and cellular cardiology plus","volume":"9 ","pages":"Article 100084"},"PeriodicalIF":0.0,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772976124000242/pdfft?md5=1d3f138a7c39b0609b145895db910f42&pid=1-s2.0-S2772976124000242-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141959724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cardiac-targeted delivery of a novel Drp1 inhibitor for acute cardioprotection 以心脏为靶向输送新型 Drp1 抑制剂,实现急性心肌保护
Journal of molecular and cellular cardiology plus Pub Date : 2024-07-17 DOI: 10.1016/j.jmccpl.2024.100085
Jarmon G. Lees , David W. Greening , David A. Rudd , Jonathon Cross , Ayeshah A. Rosdah , Xiangfeng Lai , Tsung Wu Lin , Ren Jie Phang , Anne M. Kong , Yali Deng , Simon Crawford , Jessica K. Holien , Derek J. Hausenloy , Hsin-Hui Shen , Shiang Y. Lim
{"title":"Cardiac-targeted delivery of a novel Drp1 inhibitor for acute cardioprotection","authors":"Jarmon G. Lees ,&nbsp;David W. Greening ,&nbsp;David A. Rudd ,&nbsp;Jonathon Cross ,&nbsp;Ayeshah A. Rosdah ,&nbsp;Xiangfeng Lai ,&nbsp;Tsung Wu Lin ,&nbsp;Ren Jie Phang ,&nbsp;Anne M. Kong ,&nbsp;Yali Deng ,&nbsp;Simon Crawford ,&nbsp;Jessica K. Holien ,&nbsp;Derek J. Hausenloy ,&nbsp;Hsin-Hui Shen ,&nbsp;Shiang Y. Lim","doi":"10.1016/j.jmccpl.2024.100085","DOIUrl":"10.1016/j.jmccpl.2024.100085","url":null,"abstract":"<div><p>Dynamin-related protein 1 (Drp1) is a mitochondrial fission protein and a viable target for cardioprotection against myocardial ischaemia-reperfusion injury. Here, we reported a novel Drp1 inhibitor (DRP1i1), delivered using a cardiac-targeted nanoparticle drug delivery system, as a more effective approach for achieving acute cardioprotection. DRP1i1 was encapsulated in cubosome nanoparticles with conjugated cardiac-homing peptides (NanoDRP1i1) and the encapsulation efficiency was 99.3 ± 0.1 %. In vivo, following acute myocardial ischaemia-reperfusion injury in mice, NanoDRP1i1 significantly reduced infarct size and serine-616 phosphorylation of Drp1, and restored cardiomyocyte mitochondrial size to that of sham group. Imaging by mass spectrometry revealed higher accumulation of DRP1i1 in the heart tissue when delivered as NanoDRP1i1. In human cardiac organoids subjected to simulated ischaemia-reperfusion injury, treatment with NanoDRP1i1 at reperfusion significantly reduced cardiac cell death, contractile dysfunction, and mitochondrial superoxide levels. Following NanoDRP1i1 treatment, cardiac organoid proteomics further confirmed reprogramming of contractile dysfunction markers and enrichment of the mitochondrial protein network, cytoskeletal and metabolic regulation networks when compared to the simulated injury group. These proteins included known cardioprotective regulators identified in human organoids and in vivo murine studies following ischaemia-reperfusion injury. DRP1i1 is a promising tool compound to study Drp1-mediated mitochondrial fission and exhibits promising therapeutic potential for acute cardioprotection, especially when delivered using the cardiac-targeted cubosome nanoparticles.</p></div>","PeriodicalId":73835,"journal":{"name":"Journal of molecular and cellular cardiology plus","volume":"9 ","pages":"Article 100085"},"PeriodicalIF":0.0,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772976124000254/pdfft?md5=3feae23576da412a84dd6d99efeb08af&pid=1-s2.0-S2772976124000254-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141636811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Application of adipose tissue-derived stem cell therapy with a clinically relevant dose does not significantly affect atherosclerotic plaque characteristics in a streptozotocin-induced hyperglycaemia mouse model 在链脲佐菌素诱导的高血糖小鼠模型中,应用临床相关剂量的脂肪组织衍生干细胞疗法不会显著影响动脉粥样硬化斑块的特征
Journal of molecular and cellular cardiology plus Pub Date : 2024-07-09 DOI: 10.1016/j.jmccpl.2024.100083
Amber Korn , Suat Simsek , Mitchell D. Fiet , Ingeborg S.E. Waas , Hans W.M. Niessen , Paul A.J. Krijnen
{"title":"Application of adipose tissue-derived stem cell therapy with a clinically relevant dose does not significantly affect atherosclerotic plaque characteristics in a streptozotocin-induced hyperglycaemia mouse model","authors":"Amber Korn ,&nbsp;Suat Simsek ,&nbsp;Mitchell D. Fiet ,&nbsp;Ingeborg S.E. Waas ,&nbsp;Hans W.M. Niessen ,&nbsp;Paul A.J. Krijnen","doi":"10.1016/j.jmccpl.2024.100083","DOIUrl":"https://doi.org/10.1016/j.jmccpl.2024.100083","url":null,"abstract":"<div><h3>Aims</h3><p>Diabetes mellitus (DM) induces increased inflammation of atherosclerotic plaques, resulting in elevated plaque instability. Mesenchymal stem cell (MSC) therapy was shown to decrease plaque size and increase stability in non-DM animal models. We now studied the effect of MSC therapy in a streptozotocin-induced hyperglycaemia mouse model using a clinically relevant dose of adipose tissue-derived MSCs (ASCs).</p></div><div><h3>Methods</h3><p>Hyperglycaemia was induced in male C57BL/6 ApoE<sup>−/−</sup> mice (<em>n</em>=24) via intraperitoneal streptozotocin (STZ) injection (0.05 mg/g bodyweight) for 5 consecutive days. 16 weeks after the first STZ injection, the mice received either 100,000 ASCs (<em>n</em>=9) or vehicle (<em>n</em>=14) intravenously. The effects of ASC treatment on the size and stability of aortic root atherosclerotic plaques were determined 4 weeks post-treatment via (immuno)histochemical analyses. Furthermore, plasma monocyte subsets within 3 days pre- and 3 days post-treatment, and 4 weeks post-treatment, were studied.</p></div><div><h3>Results</h3><p>ASC treatment did not significantly affect atherosclerotic plaque size or intra-plaque inflammation. Although ASC-treated mice had a higher percentage of intra-plaque fibrosis (42.5±3.3%) compared to vehicle-treated mice (37.6±6.8%, <em>p</em>=0.07), this did not reach significance. Additionally, although differences in the percentages of circulating pro- and anti-inflammatory monocytes were observed after ASC treatment compared to pre-treatment (<em>p</em>=0.005), their levels did not differ significantly at any time point compared to vehicle-treated mice.</p></div><div><h3>Conclusions</h3><p>ASC treatment with a clinically relevant dose did not significantly affect atherosclerotic plaque size or intra-plaque inflammation in a hyperglycaemia mouse model. Despite a borderline significant improvement in intraplaque fibrotic content, the potential of ASC treatment on atherosclerotic plaque stability in a diabetic environment remains to be determined.</p></div>","PeriodicalId":73835,"journal":{"name":"Journal of molecular and cellular cardiology plus","volume":"9 ","pages":"Article 100083"},"PeriodicalIF":0.0,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772976124000230/pdfft?md5=4ff700530e5023562a038de7af88520e&pid=1-s2.0-S2772976124000230-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141607070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparative analysis of two independent Myh6-Cre transgenic mouse lines 两个独立 Myh6-Cre 转基因小鼠品系的比较分析
Journal of molecular and cellular cardiology plus Pub Date : 2024-07-03 DOI: 10.1016/j.jmccpl.2024.100081
Amanda Davenport , Chase W. Kessinger , Ryan D. Pfeiffer , Nikita Shah , Richard Xu , E. Dale Abel , Nathan R. Tucker , Zhiqiang Lin
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