Analysis of the p16INK4A, p15INK4B and p18INK4C genes in multiple myeloma - PubMed (original) (raw)

Analysis of the p16INK4A, p15INK4B and p18INK4C genes in multiple myeloma

T Tasaka et al. Br J Haematol. 1997 Jan.

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Abstract

To study the structural integrity of the cyclin-dependent kinase inhibitors known as INK4A (p16), INK4B (p15) and INK4C (p18) in multiple myeloma, we examined 20 primary myeloma samples (including one case of plasma cell leukaemia) using polymerase chain reaction-single strand conformation polymorphism, and 17 samples were examined by Southern blot analysis. The plasma cell leukaemia sample had homozygous deletions of the p15 and p16 genes (6%). One myeloma case had a p15 gene homozygous deletion (6%) with an intact p16 gene. This sample also had a p18 homozygous deletion, suggesting that the deletion of both genes may be important in either the development or progression of myeloma. No point mutations of these INK4 genes were found in the 20 samples. This is the first report that indicates that deletions of p15, p16 and p18 genes occur in some individuals with multiple myeloma (2/17 cases).

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