| 摘要 |
An objective of the present invention is to provide therapeutic agents for MLL leukemia and MOZ leukemia, which include an M-CSF receptor inhibitor as an active ingredient. Another objective of the present invention is to provide methods of screening for pharmaceutical compositions that treat or prevent leukemia by suppressing the expression or activity of M-CSF receptor. Still another objective of the present invention is to provide methods of testing for leukemia, which include the step of determining the expression level of an M-CSF receptor.
The present inventors conducted dedicated studies, and as a result revealed that the M-CSF receptor (M-CSFR, CSF1R, c-FMS, or CD115) is highly expressed in cells having the activity of inducing MLL or MOZ leukemia (leukemia stem cells), both of which are intractable acute leukemia. Specifically, the present inventors discovered that the M-CSF receptor signal is closely associated with the leukemia onset.
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