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A functional study on the migration of human monocytes to human leukemic cell lines and the role of monocyte chemoattractant protein-1
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A functional study on the migration of human monocytes to human leukemic cell lines and the role of monocyte chemoattractant protein-1
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Journal Article
A functional study on the migration of human monocytes to human leukemic cell lines and the role of monocyte chemoattractant protein-1
1997
Overview
In the present study the migration of human monocytes towards the supernatants of five different human myeloid leukemic cell lines, four different human lymphatic leukemic cell lines and blasts derived from three different patients with acute myeloid leukemia (AML) was studied and the role of monocyte chemoattractant protein (MCP)-1 was established with an ELISA assay. Large differences in migration of monocytes towards the leukemic cell supernatants were shown (variation of approximately 10 to 150% compared to positive control), but high amounts of monocyte migration was always restricted to myeloid leukemic cells (cell lines or patient blasts). MCP-1 turned out to play a major role in the migration, firstly since there was a direct correlation between the amount of migration and the concentration of MCP-1 in the supernatants, and secondly since the addition of anti-hMCP-1 was able to inhibit migration to background level in all cases. Cytotoxicity experiments with a MTT test using MCP-1-stimulated monocytes against two human myeloid leukemic cell lines showed no increase in cell death compared to unstimulated monocytes. It is concluded that monocyte migration towards leukemic cells is restricted to the myeloid lineage and is regulated by MCP-1, which is produced in different amounts by the leukemic cells. Besides, MCP-1 does not increase the direct toxic effects of monocytes on leukemic cells.
Publisher
Nature Publishing,Nature Publishing Group
Subject
/ Biological and medical sciences
/ Enzyme-linked immunosorbent assay
/ Hematologic and hematopoietic diseases
/ Humans
/ Leukemia
/ Leukemia, Lymphoid - physiopathology
/ Leukemia, Myeloid - physiopathology
/ Leukemias. Malignant lymphomas. Malignant reticulosis. Myelofibrosis
/ Monocyte chemoattractant protein
/ Monocyte chemoattractant protein 1
/ Proteins
/ Toxicity
