RGD Reference Report - pp60c-src activation in lung adenocarcinoma. - Rat Genome Database

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pp60c-src activation in lung adenocarcinoma.

Authors: Masaki, T  Igarashi, K  Tokuda, M  Yukimasa, S  Han, F  Jin, Y J  Li, J Q  Yoneyama, H  Uchida, N  Fujita, J  Yoshiji, H  Watanabe, S  Kurokohchi, K  Kuriyama, S 
Citation: Masaki T, etal., Eur J Cancer. 2003 Jul;39(10):1447-55. doi: 10.1016/s0959-8049(03)00276-4.
RGD ID: 150521546
Pubmed: PMID:12826049   (View Abstract at PubMed)
DOI: DOI:10.1016/s0959-8049(03)00276-4   (Journal Full-text)

Nine src family members are known including c-Src, c-Yes, c-Lck, c-Fyn, c-Hck, c-Lyn, c-Blk, c-Fgr and c-Yrk. They encode proteins with molecular weights of 55-62 kilodaltons (kDa), which are either cytoplasmic or membrane-associated protein tyrosine kinases. A close correlation exists between an elevated pp60c-src tyrosine kinase activity and cell transformation. However, the level of activation of pp60c-src in non-small cell lung cancers (NSCLC) remains obscure. The aim of this study was to examine the level of activity of pp60c-src in NSCLC. pp60c-src expression and in vitro protein tyrosine kinase activity in lung cancer tissue samples were measured by western blotting and in vitro kinase assays and compared with those in the surrounding non-tumour lung tissue from the same patient. pp60c-src phosphorylation was assessed by two-dimensional tryptic phosphopeptide mapping. The kinase activity of pp60c-src was significantly activated in NSCLC, especially in adenocarcinomas. In addition, the pp60c-src kinase activity increased with the size of the adenocarcinoma. Two-dimensional tryptic phosphopeptide mapping showed dephosphorylation of pp60c-src at Tyr 530 in adenocarcinomas. The proto-oncogene product, pp60c-src, was activated in NSCLC, especially in adenocarcinomas, in part through the dephosphorylation of Tyr 530. Our results suggest that activation of pp60c-src might play an important role in the progression of lung adenocarcinomas.

RGD Manual Disease Annotations    Click to see Annotation Detail View
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
lung adenocarcinoma severityIEP 150521546 RGD 
lung adenocarcinoma severityISOSRC (Homo sapiens)150521546; 150521546 RGD 
lung squamous cell carcinoma severityIEP 150521546 RGD 
lung squamous cell carcinoma severityISOSRC (Homo sapiens)150521546; 150521546 RGD 

Objects Annotated

Genes (Rattus norvegicus)
Src  (SRC proto-oncogene, non-receptor tyrosine kinase)

Genes (Mus musculus)
Src  (Rous sarcoma oncogene)

Genes (Homo sapiens)
SRC  (SRC proto-oncogene, non-receptor tyrosine kinase)


Additional Information