Preliminary study of proteins related to blast crisis in chronic myeloid leukemia.
- Author:
Hong-qian ZHU
1
;
Xiao-li LIU
;
Rong LI
;
Qing-feng DU
;
Song ZHANG
;
Feng YAO
;
Zhi LIU
Author Information
- Publication Type:Journal Article
- MeSH: Adult; Aged; Annexin A1; genetics; metabolism; Blast Crisis; genetics; metabolism; Female; Gene Expression Profiling; Heterogeneous-Nuclear Ribonucleoprotein K; Humans; Leukemia, Myeloid, Chronic-Phase; genetics; metabolism; pathology; Male; Middle Aged; Proteomics; methods; RNA, Messenger; metabolism; Ribonucleoproteins; genetics; metabolism; Young Adult; rhoA GTP-Binding Protein; genetics; metabolism
- From: Chinese Journal of Oncology 2009;31(9):655-659
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo identify and compare the expression profiles of differential proteins between chronic phase and blast crisis in chronic myeloid leukemia (CML) by proteomic analysis, and screen the proteins related to blast crisis.
METHODSThe total cellular proteins from the bone marrow cells at chronic phase (CP) and blast crisis (BC) in CML were separated by two-dimensional polyacrylamide gel electrophoresis (2-DE) and analyzed with ImageMaster 5.0 software to screen the differential protein spots. Differential protein spots were identified by mass spectrometry for peptide mass fingerprint in combination with database searching from SWISS-PROT. Then 3 protein spots were selected to verify at protein and mRNA levels by Western blot and semi-quantitative RT-PCR, separately.
RESULTSComparing gel pages from CML-CP and CML-BC, the expression of 13 protein spots decreased and 25 protein spots increased significantly in CML-BC. Twenty differential protein spots were identified by mass spectrometry and 15 were successfully determined. The results of Western blotting were similar to those of 2-DE and showed a high expression of hnRNPK, annexin A1 and RhoA. Semi-quantitative RT-PCR analysis showed that there was no correlation between the protein expression changes and mRNA levels of hnRNPK, annexin A1 and RhoA.
CONCLUSIONA group of proteins associated with blast crisis are obtained and the results may provide clues for further research to elucidate the role of these proteins in CML-BC carcinogenesis and to develop potential associated biomarkers.