Identification and chromosomal localizations of signal transduction genes associated with human ovarian cancer metastasis.
Gene chip technology can be used to identify and localize signal transduction genes associated with metastasis. We used the human genome U133A gene chip to detect differences in gene expression profiles among high (H) and low (L) metastatic human ovarian cancer cell lines (HO-8910PM, HO-8910), and normal ovarian tissues (C), to identify metastasis-associated signal transduction genes and determine their chromosomal localizations. A total of 37 signal transduction genes showed more than twofold differences in expression levels between the H and L metastatic ovarian cancer cell lines; of these, 21 genes were up-regulated [signal log ratio (SLR)≥1], and 16 genes were down-regulated (SLR≤-1). Most genes were located on chromosome 1 (7 genes, 18.9%), followed by chromosome 8 (5 genes, 13.5%), then chromosomes 6, 11, and 17 (3 genes each, 8.1%). A total of 21 of the differentially expressed genes (56.7%) were localized on the short arm of the chromosome (q). The disruption of signal transduction gene expression may be an important factor associated with ovarian cancer metastasis. The affected signal transduction genes were localized to chromosomes 1, 8, 6, 11, and 17.
Zhejiang Cancer Research Institute, Zhejiang Cancer Hospital, Guangji Road 38, Hangzhou, 310022, Zhejiang Province, China.
Zhu
Z
Xin
Xu
X
Shenhua
Mou
M
Hanzhou
Gu
G
Linhui
Zhu
Z
Chihong
Liu
L
Xianglin
D045744:Cell Line, Tumor; D002874:Chromosome Mapping; D066246:ErbB Receptors / Q000502:physiology; D005260:Female; D006801:Humans; D009362:Neoplasm Metastasis; D020411:Oligonucleotide Array Sequence Analysis; D010051:Ovarian Neoplasms / Q000235:genetics* / Q000473:pathology; D019718:Receptors, CXCR4 / Q000502:physiology; D015398:Signal Transduction / Q000235:genetics*; D016212:Transforming Growth Factor beta / Q000502:physiology
C527276:CXCR4 protein, human; D019718:Receptors, CXCR4; D016212:Transforming Growth Factor beta; D066246:ErbB Receptors