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SHR Neuro Krebs Kardio Lipid

Nahrendorf, M; Hu, K; Frantz, S; Jaffer, FA; Tung, CH; Hiller, KH; Voll, S; Nordbeck, P; Sosnovik, D; Gattenlohner, S; Novikov, M; Dickneite, G; Reed, GL; Jakob, P; Rosenzweig, A; Bauer, WR; Weissleder, R; Ertl, G.
Factor XIII deficiency causes cardiac rupture, impairs wound healing, and aggravates cardiac remodeling in mice with myocardial infarction.
Circulation. 2006; 113(9):1196-1202 [OPEN ACCESS]
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Autor/innen der Med Uni Graz:
Gattenlöhner Stefan
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Number of Figures: 6
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Abstract:
BACKGROUND: Identification of key molecular players in myocardial healing could lead to improved therapies, reduction of scar formation, and heart failure after myocardial infarction (MI). We hypothesized that clotting factor XIII (FXIII), a transglutaminase involved in wound healing, may play an important role in MI given prior clinical and mouse model data. METHODS AND RESULTS: To determine whether a truly causative relationship existed between FXIII activity and myocardial healing, we prospectively studied myocardial repair in FXIII-deficient mice. All FXIII(-/-) and FXIII(-)(/+) (FXIII activity <5% and 70%) mice died within 5 days after MI from left ventricular rupture. In contradistinction, FXIII(-/-) mice that received 5 days of intravenous FXIII replacement therapy had normal survival rates; however, cardiac MRI demonstrated worse left ventricular remodeling in these reconstituted FXIII(-/-) mice. Using a FXIII-sensitive molecular imaging agent, we found significantly greater FXIII activity in wild-type mice and FXIII(-/-) mice receiving supplemental FXIII than in FXIII(-/-) mice (P<0.05). In FXIII(-/-) but not in reconstituted FXIII(-/-) mice, histology revealed diminished neutrophil migration into the MI. Reverse transcriptase-polymerase chain reaction studies suggested that the impaired inflammatory response in FXIII(-/-) mice was independent of intercellular adhesion molecule and lipopolysaccharide-induced CXC chemokine, both important for cell migration. After MI, expression of matrix metalloproteinase-9 was 650% higher and collagen-1 was 53% lower in FXIII(-/-) mice, establishing an imbalance in extracellular matrix turnover and providing a possible mechanism for the observed cardiac rupture in the FXIII(-/-) mice. CONCLUSIONS: These data suggest that FXIII has an important role in murine myocardial healing after infarction.
Find related publications in this database (using NLM MeSH Indexing)
Animals -
Chemotaxis, Leukocyte -
Extracellular Matrix Proteins - analysis Extracellular Matrix Proteins - genetics
Factor XIII - physiology
Factor XIII Deficiency - complications
Heart Rupture, Post-Infarction - etiology
Mice -
Mice, Knockout -
Myocardial Infarction - complications
Neutrophils - physiology
Ventricular Remodeling -
Wound Healing -

Find related publications in this database (Keywords)
factor XIII
healing
heart failure
myocardial infarction
remodeling
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