Emergence of dendritic cells in the myocardium after acute myocardial infarction - implications for inflammatory myocardial damage

Yilmaz A, Dietel B, Cicha I, Schubert K, Hausmann R, Daniel W, Garlichs C, Stumpf C (2010)

Publication Type: Journal article

Publication year: 2010

Journal

International Journal of Biomedical Science Master Publishing Group

Book Volume: 6

Pages Range: 27-36

Journal Issue: 1

DOI: 10.59566/ijbs.2010.6027

Abstract

Dendritic cells (DC) are crucial for T cell mediated immune responses. Recently, we observed a significant decrease in circulating myeloid DC precursors in patients with acute myocardial infarction (AMI). The aim of the present study was to investigate whether myeloid DC are present in infarcted myocardium. Myocardial specimens of 10 patients with AMI and 7 accident victims (controls) were collected after autopsy. In immunostainings the presence of DC (CD209+, fascin+), T cells (CD3+), macrophages (CD68+), and HLA-DR expression was analyzed. Significantly higher numbers of CD209+-DC (97 vs. 44 cells/0.25 mm2, p=0.03), fascin+-DC (54 vs. 8 cells/0.25 mm2, p=0.02), T cells (27 vs. 6 cells/0.25 mm2, p=0.02), and macrophages (44 vs. 6 cells/0.25 mm2, p=0.01) associated with high HLA-DR expression were detected in infarcted myocardium. Frequent colocalizations of DC and T cells were observed. In occluded coronary arteries numerous DC, T cells, macrophages and high HLA-DR expression were found. We show that DC are present in infarcted myocardium after AMI. High HLA-DR expression and the colocalization with T cells suggest that they might trigger an immune response leading to further myocardial damage.

Authors with CRIS profile

Barbara Dietel Graduiertenzentrum der FAU Werner Daniel Medizinische Fakultät Christoph Garlichs Medizinische Fakultät Christian Stumpf Department of Medicine 2 – Cardiology and Angiology

Involved external institutions

Universitätsklinikum Jena DE Germany (DE) Universität Basel CH Switzerland (CH)

How to cite

APA:

Yilmaz, A., Dietel, B., Cicha, I., Schubert, K., Hausmann, R., Daniel, W.,... Stumpf, C. (2010). Emergence of dendritic cells in the myocardium after acute myocardial infarction - implications for inflammatory myocardial damage. International Journal of Biomedical Science, 6(1), 27-36. https://doi.org/10.59566/ijbs.2010.6027

MLA:

Yilmaz, Atilla, et al. "Emergence of dendritic cells in the myocardium after acute myocardial infarction - implications for inflammatory myocardial damage." International Journal of Biomedical Science 6.1 (2010): 27-36.

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