Abstract：
:Activation of c-src, a cellular human gene homologous in sequence to the v-src gene of Rous sarcoma virus, had been thought to play an important role in the progression of several types of human cancers, without having undergone any genetic changes. However, recently truncating mutations at codon 531 of the c-src gene were reported in 12% of the advanced colon cancers, and it was also demonstrated that this change was activating, transforming, tumorigenic, and metastasis promoting. To investigate whether the codon 531-specific mutation could be involved in the carcinogenesis of colorectal cancer in the Japanese and Caucasian populations, we examined a total of 479 advanced colorectal cancers from 421 Japanese patients (46 of them with liver or lung metastases) and from 58 Caucasian patients (11 of them with liver metastases). Using the PCR-RFLP assay and additional single-strand conformation polymorphism analysis, we detected no genetic alteration in any of the advanced colorectal cancers. Our results suggest that the codon 531-specific mutational activation of c-src is unlikely to play a significant role in the malignant progression of colorectal cancers among most Japanese and Caucasian patients.
journal_name
Cancer Resjournal_title
Cancer researchauthors
Daigo Y,Furukawa Y,Kawasoe T,Ishiguro H,Fujita M,Sugai S,Nakamori S,Liefers GJ,Tollenaar RA,van de Velde CJ,Nakamura Ysubject
Has Abstractpub_date
1999-09-01 00:00:00pages
4222-4issue
17eissn
0008-5472issn
1538-7445journal_volume
59pub_type
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