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Expression and sequence analyses of p33(ING1) gene in myeloid leukemia
1Division of Hematology, Keio University School of Medicine, Tokyo, Japan.
Abstract:
p33(ING1) is a novel candidate tumor suppressor gene which is involved in the regulation of apoptosis. p33(ING1) interacts with p53 signaling pathway and regulates cellular growth. It has reported that the expression of p33(ING1) mRNA was decreased in lymphoid malignancies. We thus investigated the potential involvement of p33(ING1) abnormalities in myeloid leukemias. However, the levels of p33(ING1) transcript were almost equal in 3 AML cell lines and 10 fresh AML samples. In addition, neither point mutations nor deletions in p33(ING1) gene were found in myeloid leukemias. These results suggest that p33(ING1) may not be a major candidate tumor suppressor gene in myeloid leukemias.