Two chronic myelogenous leultaemia cell lines which represent different stages of erythroid differentiation

Autor: Norimichi Watanabe, Masayuki Yamamoto, Tadashi Nagai, Hideo Harigae, Hiromi Fujie, Norio Hayashi, Mitsutaka Okuda, Keishi Abe, Kazumichi Furuyama, Junichi Kameoka, Kazuyasu Endo, Kuniaki Meguro
Rok vydání: 1993
Předmět:
Zdroj: British Journal of Haematology. 85:653-662
ISSN: 1365-2141
0007-1048
DOI: 10.1111/j.1365-2141.1993.tb03205.x
Popis: We established two cell lines, YN-1 and Y-1K, from the peripheral blood of two chronic myelogenous leukaemia patients in blastic crisis. Characterization of the YN-1 and Y-1K cells revealed that these cells expressed erythroid lineage markers. However, there was a marked difference in the level of gamma-globin mRNA and haemoglobin in YN-1 and Y-1K cells. YN-1 contained approximately 1-5% benzidine-positive staining cells, whereas no benzidine-positive cells were observed in Y-1K cells. Haemoglobin production in YN-1 cells was markedly increased with various chemical inducers of erythroid differentiation, but was not in Y-1K cells. In contrast, Y-1K cells expressed CD34 stem cell antigen and CD41 megakaryocyte-specific antigen. These observations suggested that, although both cell lines were committed to the erythroid lineage, each cell line represented a distinct differentiation stage in the erythroid differentiation programme. Y-1K seemed to correspond to an early stage of cells in erythroid lineage, whereas YN-1 represented a more advanced stage in human erythropoiesis.
Databáze: OpenAIRE
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