Open AccessCellularity and structure of fresh human coronary thrombectomy specimens; presence of cells with markers of progenitor cells
Author(s) -
Jovin Ion S.,
Lei Li,
Huang Yan,
Hao Zhengrong,
Curtis Jeptha P.,
Brennan Joseph J.,
Remetz Michael S.,
Setaro John F.,
Pfau Steven E.,
Howes Christopher J.,
Clancy Jude F.,
Cabin Henry S.,
Cleman Michael W.,
Giordano Frank J.
Publication year - 2012
Publication title -
journal of cellular and molecular medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.44
H-Index - 130
eISSN - 1582-4934
pISSN - 1582-1838
DOI - 10.1111/j.1582-4934.2012.01629.x
Subject(s) - progenitor cell , pathology , progenitor , biology , chemistry , stem cell , microbiology and biotechnology , medicine
Acute coronary syndromes and acute myocardial infarctions are often related to plaque rupture and the formation of thrombi at the site of the rupture. We examined fresh coronary thrombectomy specimens from patients with acute coronary syndromes and assessed their structure and cellularity. The thrombectomy specimens consisted of platelets, erythrocytes and inflammatory cells. Several specimens contained multiple cholesterol crystals. Culture of thrombectomy specimens yielded cells growing in various patterns depending on the culture medium used. Culture in serum‐free stem cell enrichment medium yielded cells with features of endothelial progenitor cells which survived in culture for a year. Immunohistochemical analysis of the thrombi revealed cells positive for CD 34, cells positive for CD 15 and cells positive for desmin in situ , whereas cultured cell from thrombi was desmin positive but pancytokeratin negative. Cells cultured in endothelial cell medium were von W illebrand factor positive. The content of coronary thrombectomy specimens is heterogeneous and consists of blood cells but also possibly cells from the vascular wall and cholesterol crystals. The culture of cells contained in the specimens yielded multiplying cells, some of which demonstrated features of haematopoietic progenitor cells and which differentiated into various cell‐types.