Article
Cardiac & Cardiovascular Systems
Ryan M. Burke, Ronald A. Dirkx, Pearl Quijada, Janet K. Lighthouse, Amy Mohan, Meghann O'Brien, Wojciech Wojciechowski, Collynn F. Woeller, Richard P. Phipps, Jeffrey D. Alexis, John M. Ashton, Eric M. Small
Summary: Salinomycin as an antifibrotic agent demonstrates potent anti-fibrotic activity in cardiac fibroblasts, prevents cardiac fibrosis and functional decline in mouse models of ischemic and nonischemic heart disease, and inhibits cardiac fibroblast activation by targeting p38/MAPK and Rho signaling. Moreover, salinomycin promotes cardiomyocyte survival and improves coronary vessel density, showing promise for the treatment of heart failure patients.
CIRCULATION RESEARCH
(2021)
Article
Cardiac & Cardiovascular Systems
Mei Yang, Jun Xiong, Qiang Zou, Xi Wang, Ke Hu, Qingyan Zhao
Summary: The results of this study demonstrated that sinapic acid attenuated structural and neural remodeling by promoting macrophage M2 polarization via PPAR gamma activation after myocardial infarction.
FRONTIERS IN CARDIOVASCULAR MEDICINE
(2022)
Article
Medicine, Research & Experimental
Tianbao Ye, Zhiwen Yan, Cheng Chen, Di Wang, Aiting Wang, Taixi Li, Boshen Yang, Xianting Ding, Chengxing Shen
Summary: This study aimed to investigate the cardioprotective role of lactoferrin (Ltf) in myocardial infarction (MI) and its underlying mechanisms. Proteomic analysis revealed that Ltf was significantly upregulated in MI hearts but decreased in circulation, and its expression was positively correlated with cardiac function. Ltf administration attenuated cardiac fibrosis and remodeling, improved cardiac function, and reduced the incidence of heart failure post-MI.
Article
Chemistry, Multidisciplinary
Xuehui Zheng, Lingxin Liu, Jing Liu, Chen Zhang, Jie Zhang, Yan Qi, Lin Xie, Chunmei Zhang, Guoqing Yao, Peili Bu
Summary: The study shows that adverse remodeling after myocardial infarction (MI) is associated with heart failure and sudden cardiac death. Fibulin7 (FBLN7) is a critical profibrotic regulator of post-MI cardiac remodeling. FBLN7 binds to the epidermal growth factor receptor (EGFR) and induces autophosphorylation of EGFR, leading to fibroblast-to-myofibroblast transdifferentiation and myocardial fibrosis.
Review
Chemistry, Medicinal
Zohreh Varasteh, Wolfgang A. Weber, Christoph Rischpler
Summary: Molecular imaging technologies play a vital role in the detection and treatment of cardiovascular disease, providing unique insights into pathobiological processes and enabling personalized therapy.
Article
Immunology
Ri-Feng Gao, Xiao Li, Hai-Yan Xiang, Heng Yang, Chun-Yu Lv, Xiao-Lei Sun, Hong-Zhang Chen, Yang Gao, Jue-Sheng Yang, Wei Luo, Yi-Qing Yang, Yan-Hua Tang
Summary: Oridonin, a covalent NLRP3 inhibitor, reduces myocardial fibrosis and preserves cardiac function in a mouse MI model, indicating its potential therapeutic effect on acute MI patients. Additionally, Oridonin decreased the expression levels of inflammatory factors and reduced myocardial macrophage and neutrophil influxes in treated mice.
INTERNATIONAL IMMUNOPHARMACOLOGY
(2021)
Article
Cardiac & Cardiovascular Systems
Xueyi Chen, Pavel Zhabyeyev, Abul K. Azad, Bart Vanhaesebroeck, Chad E. Grueter, Allan G. Murray, Zamaneh Kassiri, Gavin Y. Oudit
Summary: PI3K alpha plays a crucial role in cell survival, hypertrophic response, and angiogenesis, and inhibition of PI3K alpha after myocardial infarction may result in adverse consequences.
JOURNAL OF MOLECULAR AND CELLULAR CARDIOLOGY
(2021)
Article
Cardiac & Cardiovascular Systems
GuiHao Chen, Vincent Phan, Xiang Luo, Dian J. Cao
Summary: mTORC1 plays a crucial role in regulating the functions of cardiac monocytes and macrophages, and its inhibition promotes cardiac repair, reduces inflammatory injury, and decreases mortality from acute ischemia.
JOURNAL OF MOLECULAR AND CELLULAR CARDIOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Qian Yang, Xiao Zong, Lingfang Zhuang, Roubai Pan, Xierenayi Tudi, Qin Fan, Rong Tao
Summary: Adverse cardiac remodeling, including fibrosis, is a major cause of heart failure after myocardial infarction. The enzyme PFKFB3, involved in glucose metabolism, has implications in fibrotic and cardiovascular diseases. In this study, PFKFB3 inhibition using the inhibitor 3PO improved cardiac function and reduced fibrosis in a mouse model of myocardial infarction. PFKFB3 inhibition suppressed the TGF-beta 1/SMAD2/3 signaling pathway and decreased collagen and fibronectin expression, leading to reduced fibrosis. These findings suggest that PFKFB3 inhibition may be a novel therapeutic strategy to reduce chronic heart failure after myocardial infarction.
Article
Cell Biology
Yiteng Liao, Hao Li, Hao Cao, Yun Dong, Lei Gao, Zhongmin Liu, Junbo Ge, Hongming Zhu
Summary: miR-146b-5p is a hypoxia-induced regulator that governs the pro-fibrotic phenotype transition of cardiac cells. Local inhibition of miR-146b-5p may represent a novel therapeutic approach to treat cardiac fibrotic remodeling and dysfunction following MI.
Article
Biochemistry & Molecular Biology
Min Zhang, Min Zhang, Ting Zhou, Meilin Liu, Ni Xia, Muyang Gu, Tingting Tang, Shaofang Nie, Zhengfeng Zhu, Bingjie Lv, Jiao Jiao, Xiangping Yang, Xiang Cheng
Summary: ACKR4 plays a critical role in cardiac remodeling post-myocardial infarction by regulating IL-6 production in cardiac fibroblasts and endothelial cell functions to inhibit cardiac fibrosis. Targeting ACKR4 may offer a novel therapeutic strategy for ameliorating cardiac remodeling.
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
(2021)
Article
Pharmacology & Pharmacy
Yong Fu, Jun Shi, Hong Qian, Chaoyi Qin, Lulu Liu, Jiayu Shen, Hao Ma, Lang Ma, Bin Liao, Yingqiang Guo
Summary: This study investigated the therapeutic effect of peritoneal matrix-loaded pirfenidone nanodroplets (NDs) on myocardial infarction (MI) fibrosis. The results showed that the nanodroplets achieved a slow drug release and inhibited cardiac fibroblasts transformation and collagen synthesis. Combining the peritoneal matrix with pirfenidone nanodroplets showed excellent therapeutic effects on fibrosis in MI rats. This study confirmed the feasibility and synergistic effectiveness of the approach and highlighted the potential application of nanomedicine in other biomedical fields.
EUROPEAN JOURNAL OF PHARMACOLOGY
(2022)
Article
Cardiac & Cardiovascular Systems
Alan J. Mouton, Elizabeth R. Flynn, Sydney P. Moak, Nikaela M. Aitken, Ana C. M. Omoto, Xuan Li, Alexandre A. da Silva, Zhen Wang, Jussara M. do Carmo, John E. Hall
Summary: The study indicates that DMF can improve post-MI remodeling by modulating macrophage and fibroblast metabolism. DMF attenuates LV infarct thinning and dilation, decreases pulmonary congestion, and promotes infarct collagen deposition, myofibroblast activation, and angiogenesis. Additionally, DMF reduces pro-inflammatory cytokine expression and alters metabolic activities in macrophages and fibroblasts, suggesting potential anti-inflammatory and reparative effects.
JOURNAL OF MOLECULAR AND CELLULAR CARDIOLOGY
(2021)
Article
Cardiac & Cardiovascular Systems
Jan Philipp Schuette, Mailin-Christin Manke, Katherina Hemmen, Patrick Muenzer, Barbara F. Schoerg, Gustavo Campos Ramos, Michaela Pogoda, Valerie Dicenta, Sabrina H. L. Hoffmann, Juergen Pinnecker, Ferdinand Kollotzek, Monika Zdanyte, Karin A. L. Mueller, Yogesh Singh, Andreas F. Mack, Bernd Pichler, Florian Lang, Bernhard Nieswandt, Meinrad Gawaz, Katrin G. Heinze, Nicolas Casadei, Oliver Borst
Summary: Platelet-derived miRNAs play a critical role in myocardial inflammation and structural remodeling in response to myocardial ischemia/reperfusion (I/R). In a mouse model with a Dicer gene deletion, disrupted miRNA processing machinery in platelets led to increased myocardial inflammation, impaired angiogenesis, accelerated cardiac fibrosis, and larger infarct size. These findings highlight the importance of platelet-derived miRNA in regulating cellular processes following myocardial I/R.
CIRCULATION RESEARCH
(2023)
Review
Cell Biology
Akihiko Kubota, Nikolaos G. Frangogiannis
Summary: Following myocardial infarction, macrophages play important roles in both injurious and reparative responses. They regulate the inflammatory response through phagocytosis and secretion of mediators, and contribute to the repair of the infarcted heart. However, the relationship between transcriptomic profiles and functional properties of macrophages in infarcted hearts is still unclear.
AMERICAN JOURNAL OF PHYSIOLOGY-CELL PHYSIOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Xianzhu Wu, Frank Brombacher, Zissis C. Chroneos, Christopher C. Norbury, D. Channe Gowda
Summary: IL-4 is considered beneficial for protecting against severe malaria by promoting Th2 responses and inhibiting inflammation, but the timing and tissue environment of its production can also induce inflammatory responses. The study shows a paradoxical role of IL-4R alpha signaling in cerebral malaria pathogenesis by promoting inflammatory responses mediated by CD8 alpha(+) DCs, leading to damaging Th1 and cytotoxic CD8(+) T cell responses.
JOURNAL OF BIOLOGICAL CHEMISTRY
(2021)
Review
Parasitology
Justin Komguep Nono, Severin Donald Kamdem, Fungai Musaigwa, Chukwudi A. Nnaji, Frank Brombacher
Summary: Studies have shown that schistosomiasis can interfere with the host's ability to mount immune responses to unrelated antigens, highlighting the importance of assessing the impact of this disease on host vaccine responses. There is currently no consensus on the influence of schistosomiasis on host vaccine responses.
TRENDS IN PARASITOLOGY
(2022)
Article
Neurosciences
Thomas M. Vigil, Ryan A. Frieler, KiAundra L. Kilpatrick, Michael M. Wang, Richard M. Mortensen
Summary: Immunometabolic changes play a crucial role in determining immune cell response in disease models. Knockout of Acod1, which produces the immunometabolite itaconate, leads to increased lesion volume in cerebral ischemia/reperfusion injury models, indicating a potential protective role of endogenous Acod1. However, this effect does not seem to be driven by changes in inflammatory gene regulation.
EXPERIMENTAL NEUROLOGY
(2022)
Article
Medicine, Research & Experimental
Juan-Manuel Leyva-Castillo, Mrinmoy Das, Jennifer Kane, Maria Strakosha, Sonal Singh, Daniel Sen Hoi Wong, Alexander R. Horswill, Hajime Karasuyama, Frank Brombacher, Lloyd S. Miller, Raif S. Geha
Summary: Research has shown that mechanical injury to mouse skin through tape stripping predisposes the skin to superficial infection with S. aureus. This infection is promoted by basophil-derived IL-4, which inhibits the production of IL-17A and facilitates S. aureus infection. IL-4 acts on multiple checkpoints to suppress the cutaneous IL-17A response, but blocking the IL-4 receptor can enhance Il17a expression and bacterial clearance.
Article
Medicine, Research & Experimental
Lindsey A. Muir, Kae Won Cho, Lynn M. Geletka, Nicki A. Baker, Carmen G. Flesher, Anne P. Ehlers, Niko Kaciroti, Stephen Lindsly, Scott Ronquist, Indika Rajapakse, Robert W. O'Rourke, Carey N. Lumeng
Summary: This study identified different subtypes of adipose tissue macrophages (ATMs) in obese and diabetic individuals and found that these subtypes play different roles in inflammation and insulin resistance. CD206(+)CD11c(-) ATMs were increased in diabetic participants and expressed proinflammatory cytokines and scavenger receptors, while the other two subtypes were lipid antigen presenting.
Article
Multidisciplinary Sciences
Stephen Lindsly, Wenlong Jia, Haiming Chen, Sijia Liu, Scott Ronquist, Can Chen, Xingzhao Wen, Cooper Stansbury, Gabrielle A. Dotson, Charles Ryan, Alnawaz Rehemtulla, Gilbert S. Omenn, Max Wicha, Shuai Cheng Li, Lindsey Muir, Indika Rajapakse
Summary: This study investigates the allele-specific relationship between gene expression and genome structure through the cell cycle using haplotype-resolved genome-wide chromosome conformation capture, mRNA, and protein binding data. The analysis reveals significant coordination between allelic expression biases and local genome conformation, with notably absent expression bias in certain essential genes, suggesting a prioritized preservation of essential gene sets. The study proposes a model in which coordinated biallelic expression reflects this prioritization.
Article
Endocrinology & Metabolism
Ryan A. Frieler, Thomas M. Vigil, Jianrui Song, Christy Leung, Daniel R. Goldstein, Carey N. Lumeng, Richard M. Mortensen
Summary: The study suggests that Acod1 plays an important role in regulating glucose homeostasis and obesity. Acod1(-/-) mice showed impaired glucose metabolism and higher blood glucose levels on a high-fat diet. The absence of Acod1 also led to an increase in fat deposition and insulin resistance.
Article
Multidisciplinary Sciences
Yaping Sun, Gabrielle A. Dotson, Lindsey A. Muir, Scott Ronquist, Katherine Oravecz-Wilson, Daniel Peltier, Keisuke Seike, Lu Li, Walter Meixner, Indika Rajapake, Pavan Reddy
Summary: This study reveals that WAPL deficiency affects the 3D structure and function of the genome in mature T cells, with implications for their biological and clinical characteristics.
Article
Multidisciplinary Sciences
Gabrielle A. Dotson, Can Chen, Stephen Lindsly, Anthony Cicalo, Sam Dilworth, Charles Ryan, Sivakumar Jeyarajan, Walter Meixner, Cooper Stansbury, Joshua Pickard, Nicholas Beckloff, Amit Surana, Max Wicha, Lindsey A. Muir, Indika Rajapakse
Summary: Mapping higher order chromatin architecture using long sequencing reads and hypergraph theory is effective in investigating chromatin organization and identifying cell type-specific transcription clusters. This study provides insights into the functional building blocks for cell identity and offers a global signature for different cell types.
NATURE COMMUNICATIONS
(2022)
Review
Endocrinology & Metabolism
Sierra A. Nance, Lindsey Muir, Carey Lumeng
Summary: This review provides an updated overview of ATM activation and function, ATM diversity in humans and rodents, and novel ATM functions that contribute to metabolic homeostasis and disease.
MOLECULAR METABOLISM
(2022)
Article
Hematology
Jessica L. Faragher, Jennifer L. Auger, Victoria Osinski, Lee A. Meier, Brianna J. Engelson, Maria M. Firulyova, Mayra I. Gonzalez-Torres, Frank Brombacher, Konstantin Zaitsev, Aubyn Marath, Bryce A. Binstadt
Summary: In the K/B.g7 mouse model, valvular carditis is mainly driven by TNF and IL-6. Specifically deleting TNFR1 on endothelial cells protects mice from valvular carditis.
ARTERIOSCLEROSIS THROMBOSIS AND VASCULAR BIOLOGY
(2023)
Article
Multidisciplinary Sciences
Sierra A. Nance, Lindsey Muir, Jennifer Delproprosto, Carey N. Lumeng
Summary: The expression of MSR1 is increased in obese diabetic individuals and mice, but it is not a crucial factor for obesity-associated insulin resistance or adipose tissue macrophage accumulation in mice.
SCIENTIFIC REPORTS
(2023)
Review
Medicine, Research & Experimental
Gabrielle A. Dotson, Charles W. Ryan, Can Chen, Lindsey Muir, Indika Rajapakse
Summary: Cellular reprogramming is a promising strategy for tissue function restoration using transcription factors. Successful grafting of autologous reprogrammed cells has been achieved, but identifying appropriate transcription factors for specific transformation remains challenging. Computational methods leveraging gene expression data for predicting relevant transcription factors, based on mathematical frameworks, are highlighted for their utility and impact in the field of cellular reprogramming.
WIRES MECHANISMS OF DISEASE
(2021)