B Lymphocytes and Macrophages in the Perivascular Adipose Tissue Are Associated With Coronary Atherosclerosis: An Autopsy Study
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Citações na Scopus
31
Tipo de produção
article
Data de publicação
2019
Título da Revista
ISSN da Revista
Título do Volume
Editora
WILEY
Autores
NISHIZAWA, Aline
CAMPOS, Fernanda Marinho
SILVA, Karen Cristina Souza da
Citação
JOURNAL OF THE AMERICAN HEART ASSOCIATION, v.8, n.24, article ID e013793, 21p, 2019
Resumo
Background Macrophages and T lymphocytes in the perivascular adipose tissue (PvAT) were previously linked to coronary artery disease. However, the role of these cells and B lymphocytes in the human PvAT adjacent to unstable atherosclerotic plaques has not been investigated. Moreover, previous studies were inconclusive on whether PvAT inflammation was restricted to the surroundings of the atheroma plaque. Methods and Results Coronary arteries were freshly dissected with the surrounding PvAT. Atherosclerotic plaques were classified according to the internationally accepted anatomopathological criteria. Immune cells in the PvAT were detected using immunohistochemistry and then quantified. We used linear and logistic regressions with robust standard errors, adjusted for possible confounding factors. In 246 atherosclerotic plaques (205 stable and 41 unstable plaques) from 82 participants (mean age=69.0 +/- 14.4 years; 50% men), the percentage of arterial obstruction was positively correlated with the densities of CD68(+) macrophages (P=0.003) and CD20(+) B lymphocytes (P=0.03) in the periplaque PvAT. The number of cells was greater in the periplaque PvAT than in the distal PvAT (macrophages, P<0.001; B lymphocytes, P=0.04). In addition, the density of macrophages in the periplaque PvAT was greater in the presence of unstable plaques (P=0.03) and was also greater near unstable plaques than in the distal PvAT (P=0.001). CD3(+) T lymphocytes were not associated with percentage of obstruction and stable/unstable plaque composition. Conclusions The density of CD20(+) B lymphocytes and CD68(+) macrophages in periplaque PvAT was increased with plaque size, and the CD68(+) macrophages were greater near unstable atherosclerotic plaques than near stable lesions. This inflammation was more intense in the periplaque PvAT than in the PvAT distal to the atherosclerotic plaques.
Palavras-chave
atherosclerosis, B cell, coronary artery disease, inflammation, macrophages, pericoronary adipose tissue
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Artigos e Materiais de Revistas Científicas - HU
Artigos e Materiais de Revistas Científicas - FM/MCM
Artigos e Materiais de Revistas Científicas - FM/MPT
Artigos e Materiais de Revistas Científicas - HC/ICESP
Artigos e Materiais de Revistas Científicas - LIM/05
Artigos e Materiais de Revistas Científicas - LIM/22
Carregar mais Artigos e Materiais de Revistas Científicas - FM/MCM
Artigos e Materiais de Revistas Científicas - FM/MPT
Artigos e Materiais de Revistas Científicas - HC/ICESP
Artigos e Materiais de Revistas Científicas - LIM/05
Artigos e Materiais de Revistas Científicas - LIM/22