Differential Proteomic Analysis of Metastasis-associated Proteins in Mice Melanoma / 中国肿瘤临床
Chinese Journal of Clinical Oncology
;
(24): 246-249, 2010.
Article
in Chinese
| WPRIM
| ID: wpr-402950
ABSTRACT
Objective:
To investigate differentially expressed protein profiles in B16-F10 grafted melanoma and its metastasis in the lung in order to identify molecular markers of melanoma metastasis.Methods:
Differentially expressed proteins in B16-F10 grafted melanoma and its metastatic lesion in the lung were isolated and identified by fluorescence two-dimensional differential gel electrophoresis(2D-DIGE)coupled with matrix assisted laser desorption ionisation time-of-flight mass spectrometry(MALDI-TOF-MS).Some of identified proteins were further confirmed by Real-time PCR analysis.Results:
High resolutional images of differential gel electrophoresis were obtained and 9 of 30 differentially expressed proteins (IRatiol≥2,P<0.01)were identified by MALDI-TOF-MS.The expression of Myoglobin(MB),vimentin(VIM),phosphoglycerate kinase 1(PGK1),Triosephosphate isomerase(TPI or TIM),heavy-chain binding protein(BiP),α-enolase,β-actin,γ-actin,and laminin-binding protein were up-regulated in the experimental group compared with the control group.These proteins were involved in the cytoskeletal formation,glycolysis and so on.Real-time PCR analysis showed up-regulation of mRNA expression of PGK1 and TPI in the experimental group(P=0.001 and 0.003),which was in consistent with the resuits of proteomic analysis.Conclusion:
A variety of abnormally expressed proteins contribute to the metastasis of mice melanoma.Glycolytic enzymes PGK1 and TPI may be involved in this process.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Journal of Clinical Oncology
Year:
2010
Type:
Article
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