scholarly journals Temporal and Molecular Analyses of Cardiac Extracellular Matrix Remodeling following Pressure Overload in Adiponectin Deficient Mice

PLoS ONE ◽  
2015 ◽  
Vol 10 (4) ◽  
pp. e0121049 ◽  
Author(s):  
Keith Dadson ◽  
Subat Turdi ◽  
Stellar Boo ◽  
Boris Hinz ◽  
Gary Sweeney
Author(s):  
Katarzyna Hackert ◽  
Susanne Homann ◽  
Shakila Mir ◽  
Arne Beran ◽  
Simone Gorreßen ◽  
...  

Cardiac wall stress induces local and systemic inflammatory responses that are increasingly recognized as key modulators of extracellular matrix remodeling. Hyaluronic acid interacts with immune cells and mesenchymal cells thereby modulating profibrotic signals. Here we tested the hypothesis that 4-methylumbelliferone (4-MU), an inhibitor of hyaluronic acid synthesis, would attenuate inflammation and extracellular matrix remodeling of pressure-overloaded myocardium in C57BL/6J male mice fed with 4-MU and subjected to TAC (transverse aortic constriction) surgery. Flow cytometry of immune cells showed TAC-induced leukocytosis due to an increase of neutrophils and monocytes. 4-MU strongly attenuated both circulating and cardiac leukocyte numbers 3 days after TAC. In the hearts, 4-MU reduced the number of CCR2 − resident macrophages. At later time points, 4-MU also prevented the infiltration of heart tissue by bone marrow-derived circulating monocytes leading to reduced cardiac macrophage counts even 7 weeks after TAC. The long-term attenuation of macrophage-driven inflammation was associated with less myocardial fibrosis in 4-MU-treated compared with untreated mice. Unexpectedly, 4-MU also reduced the development of left ventricular hypertrophy and increased cardiac output after TAC without affecting blood pressure. The data demonstrate that 4-MU reduces both resident and invading cardiac macrophages and may be a promising agent to alleviate pressure-overload induced myocardial damage.


2008 ◽  
Vol 31 (6) ◽  
pp. 1225-1231 ◽  
Author(s):  
Jing LIN ◽  
Harrison B. DAVIS ◽  
Qiuxia DAI ◽  
Youn-Min CHOU ◽  
Teresa CRAIG ◽  
...  

Cells ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 1046
Author(s):  
Jorge Martinez ◽  
Patricio C. Smith

Desmoplastic tumors correspond to a unique tissue structure characterized by the abnormal deposition of extracellular matrix. Breast tumors are a typical example of this type of lesion, a property that allows its palpation and early detection. Fibrillar type I collagen is a major component of tumor desmoplasia and its accumulation is causally linked to tumor cell survival and metastasis. For many years, the desmoplastic phenomenon was considered to be a reaction and response of the host tissue against tumor cells and, accordingly, designated as “desmoplastic reaction”. This notion has been challenged in the last decades when desmoplastic tissue was detected in breast tissue in the absence of tumor. This finding suggests that desmoplasia is a preexisting condition that stimulates the development of a malignant phenotype. With this perspective, in the present review, we analyze the role of extracellular matrix remodeling in the development of the desmoplastic response. Importantly, during the discussion, we also analyze the impact of obesity and cell metabolism as critical drivers of tissue remodeling during the development of desmoplasia. New knowledge derived from the dynamic remodeling of the extracellular matrix may lead to novel targets of interest for early diagnosis or therapy in the context of breast tumors.


2006 ◽  
Vol 95 (1) ◽  
pp. 215-226 ◽  
Author(s):  
Eric A. Andreasen ◽  
Lijoy K. Mathew ◽  
Christiane V. Löhr ◽  
Rachelle Hasson ◽  
Robert L. Tanguay

2004 ◽  
Vol 191 (6) ◽  
pp. S10
Author(s):  
Wendy Kinzler ◽  
John Smulian ◽  
C. Andrew Kistler ◽  
Rita Hahn ◽  
Peihong Zhou ◽  
...  

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