title: Prognostic evaluation of CapG, gelsolin, P-gp, GSTP1, and Topo-II proteins in non-small cell lung cancer.
abstract: Metastasis and multidrug resistance (MDR) are the main reasons for the poor prognosis of non-small cell lung cancer (NSCLC) patients. The use of biomarkers may contribute to a more accurate prediction of tumor metastasis, a better response to chemotherapy, and better patient survival. Gelsolin-like actin-capping protein (CapG) and gelsolin have been identified as playing important roles in tumor invasion and metastasis. Permeability glycoprotein (P-gp), glutathione S-transferase pi (GSTP1), and topoisomerase-II (Topo-II) are proteins that are closely related to MDR. In this study, we assessed the prognostic significance of CapG and gelsolin (both markers of tumor motility), and of P-gp, GSTP1, and Topo-II (markers of MDR) in NSCLC patients. One hundred and twenty-one patients with pathologically confirmed, resectable NSCLC were included in the study. The expression levels of the five kinds of proteins mentioned above were determined by immunohistochemistry (IHC). The correlation between the clinical characteristics and IHC findings were analyzed. Expression of CapG, gelsolin, and P-gp was found to be associated with an increased risk of death (Hazard Ratio (HR) = 2.799, 95% Confidence Interval (CI) = 1.2705-6.169, P = 0.011; HR = 3.968, 95% CI = 1.811-8.693, P = 0.001; HR = 3.251, 95% CI = 1.456-7.260, P = 0.004, respectively), whereas expression of GSTP1 and Topo-II was not. These results suggest that higher tumor motility and MDR may be important in NSCLC prognosis.
authors.affiliation: Laboratory of Immunogenomics, Zhoushan Hospital-BIG/CAS, Zhoushan 316004, China.
authors.forename: Wang-Yu
authors.initials: WY
authors.lastname: Zhu
authors.forename: Yan-Yan
authors.initials: YY
authors.lastname: Hunag
authors.forename: Xiao-Guang
authors.initials: XG
authors.lastname: Liu
authors.forename: Jian-Ying
authors.initials: JY
authors.lastname: He
authors.forename: Dong-Dong
authors.initials: DD
authors.lastname: Chen
authors.forename: Fang
authors.initials: F
authors.lastname: Zeng
authors.forename: Ji-Hang
authors.initials: JH
authors.lastname: Zhou
authors.forename: Yong-Kui
authors.initials: YK
authors.lastname: Zhang
mesh_terms: D020168:ATP Binding Cassette Transporter, Subfamily B, Member 1 / Q000378:metabolism; D000368:Aged; D014408:Biomarkers, Tumor / Q000378:metabolism*; D002289:Carcinoma, Non-Small-Cell Lung / Q000175:diagnosis* / Q000378:metabolism / Q000401:mortality; D002681:China / Q000453:epidemiology; D004250:DNA Topoisomerases, Type II / Q000378:metabolism; D004268:DNA-Binding Proteins / Q000378:metabolism; D005260:Female; D018260:Gelsolin / Q000378:metabolism; D051549:Glutathione S-Transferase pi / Q000378:metabolism; D006801:Humans; D007150:Immunohistochemistry; D053208:Kaplan-Meier Estimate; D008175:Lung Neoplasms / Q000175:diagnosis* / Q000378:metabolism / Q000401:mortality; D008297:Male; D008840:Microfilament Proteins / Q000378:metabolism; D008875:Middle Aged; D009363:Neoplasm Proteins / Q000378:metabolism*; D009367:Neoplasm Staging; D009687:Nuclear Proteins / Q000378:metabolism; D011379:Prognosis; D015996:Survival Rate
chemical_list: D020168:ATP Binding Cassette Transporter, Subfamily B, Member 1; D014408:Biomarkers, Tumor; D004268:DNA-Binding Proteins; D018260:Gelsolin; D008840:Microfilament Proteins; D009363:Neoplasm Proteins; D009687:Nuclear Proteins; C066575:CAPG protein, human; C496556:GSTP1 protein, human; D051549:Glutathione S-Transferase pi; D004250:DNA Topoisomerases, Type II