bcl 10 gene mutation in hepatocellular carcinoma.
OBJECTIVE
To detect the mutation frequency of the bcl 10 gene in the early and advanced stages of hepatocellular carcinoma (HCC).


METHODS
Genome DNA samples were extracted from 46 cases of fresh HCC tumor tissues and their non-tumor adjacent tissues. Polymerase chain reaction-single strand conformation polymorphism method was used to detect point mutations of the three exons of the bcl 10 gene. For each individual exon, six random samples from those showing abnormal DNA bands were sequenced to verify those mutations. The relationship between serum alpha-fetoprotein (AFP) level and bcl 10 mutation, between the tumor size and bcl 10 mutation was also analyzed.


RESULTS
Among the 46 samples, 26 cases (56.5%) were found to have mutations in exon 1, 5 out of the 6 cases were shown to have 5744 C-->G mutation by sequencing; 25 cases (54.3%) were found to have mutations in exon 2, 4 out of the 6 cases were shown to have 11,311 T deletion mutation by sequencing. Twenty-one cases (45.7%) were found to have mutations in exon 3, all of the 6 cases selected for sequencing were shown to have 14,116 C-->T mutation. Statistical analysis showed that neither serum alpha-fetoprotein level nor the size of hepatocellular carcinoma has a significant relationship with bcl 10 mutation.


CONCLUSIONS
The bcl 10 gene has a high mutation frequency in liver cancer.
Cheng
J
J
Department of Surgery, Peking University People's Hospital, Beijing 100044, China.
Leng
X
X
Cai
S
S
Cao
Z
Z
Cao
G
G
Peng
J
J
Wang
S
S
Du
R
R
D048868:Adaptor Proteins, Signal Transducing; D000328:Adult; D000368:Aged; D000074018:B-Cell CLL-Lymphoma 10 Protein; D006528:Carcinoma, Hepatocellular / Q000235:genetics*; D006801:Humans; D008113:Liver Neoplasms / Q000235:genetics*; D008875:Middle Aged; D009154:Mutation; D009363:Neoplasm Proteins / Q000235:genetics*; D016133:Polymerase Chain Reaction; D018807:Polymorphism, Single-Stranded Conformational; D000509:alpha-Fetoproteins / Q000032:analysis
D048868:Adaptor Proteins, Signal Transducing; D000074018:B-Cell CLL-Lymphoma 10 Protein; C118591:BCL10 protein, human; D009363:Neoplasm Proteins; D000509:alpha-Fetoproteins