Isolation of a candidate tumor suppressor gene on chromosome 8p21.3-p22 that is homologous to an extracellular domain of the PDGF receptor beta gene.
We have isolated a candidate tumor suppressor gene from a 600-kb region on chromosome 8p21.3-p22 that is commonly deleted in sporadic hepatocellular carcinomas (HCC), colorectal cancers (CRC), and non-small cell lung cancers (NSCLC). As this gene encodes a protein of 375 amino acids that bears significant sequence similarity to the extracellular (ligand-binding domain of platelet-derived growth factor receptor beta, we have designated it PRLTS (PDGF-receptor beta-like tumor suppressor). Structural rearrangement involving this gene was found in a sporadic NSCLC. In addition, somatic missense and frame-shift mutations were found in two HCCs and one CRC. These findings indicate that inactivation of the PRLTS gene may play a significant role in development of some carcinomas.
Fujiwara
Y
Y
Department of Biochemistry, Cancer Institute, Tokyo, Japan.
Ohata
H
H
Kuroki
T
T
Koyama
K
K
Tsuchiya
E
E
Monden
M
M
Nakamura
Y
Y
D000595:Amino Acid Sequence; D001483:Base Sequence; D006528:Carcinoma, Hepatocellular / Q000235:genetics; D002289:Carcinoma, Non-Small-Cell Lung / Q000235:genetics; D002898:Chromosomes, Human, Pair 8; D015179:Colorectal Neoplasms / Q000235:genetics; D016147:Genes, Tumor Suppressor; D006801:Humans; D008113:Liver Neoplasms / Q000235:genetics; D008175:Lung Neoplasms / Q000235:genetics; D008969:Molecular Sequence Data; D009154:Mutation; D017479:Receptors, Platelet-Derived Growth Factor / Q000235:genetics*
D017479:Receptors, Platelet-Derived Growth Factor