Mutational Analysis of CDKN2 (p16-INK4A/MTS1) Gene in Childhood Acute Leukemia.
- Author:
Chang Hyun YANG
1
;
Chuhl Joo LYU
;
Kir Young KIM
Author Information
1. Department of Pediatrics, Yonsei University College of Medicine, Seoul, Korea.
- Publication Type:Original Article
- Keywords:
CDKN2;
Point mutation;
Acute leukemia
- MeSH:
Arginine;
Base Sequence;
Chromosomes, Human;
Codon;
Exons;
Genes, p16;
Genes, Tumor Suppressor;
Glycine;
Humans;
Leukemia*;
Leukemia, Myeloid, Acute;
Mutation, Missense;
Point Mutation;
Polymerase Chain Reaction;
Precursor Cell Lymphoblastic Leukemia-Lymphoma;
Prevalence;
Sequence Analysis, DNA;
T-Lymphocytes
- From:Korean Journal of Pediatric Hematology-Oncology
2001;8(1):35-41
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: The human chromosome 9p21 region that is a frequent site of deletions and rearrangements in many tumor types including leukemias implied the existence of a tumor suppressor gene within 9p21 which is involved in tumor formation. CDKN2 (p16) gene is located in the same chromosomal region. The loss of CDKN2 function is probably one of the most common genetic alterations and is now thought to play a key role in leukemogenesis. We examined the frequency of the point mutation of CDKN2 gene by analyzing the DNA sequence and demonstrated the prognostic implication of mutations of CDKN2 gene in childhood acute leukemia. METHODS: We investigated the prevalence of the point mutation in thirty patients with 20 cases of acute lymphoblastic leukemia (ALL) and 10 cases of acute myeloid leukemia (AML). The point mutation of CDKN2 gene was analyzed in a PCR generated DNA sequencing technique. RESULTS: There was no point mutation in exon 1 of CDKN2 gene. A missense mutation (G--
