title: [Correlation between the expression of PCDGF in serum and the chemotherapeutic sensitivity in NSCLC].
abstract: OBJECTIVE
  To investigate the expression of PC cell-derived growth factor (PCDGF) in the serum of non-small cell lung cancer (NSCLC) patients and healthy adults, and it's correlation with chemotherapeutic sensitivity.
  
  
  METHODS
  The venous blood samples of 44 advanced NSCLC patients and 30 healthy adults were collected, and PCDGF mono-antibody was used for detection in the experiment. A part of specimens were randomly selected for Western-blot, and all specimens were eventually examined by ELISA. Chemotherapeutic response of these patients was recorded in order to analyze the correlation between PCDGF expression level and chemotherapeutic sensitivity.
  
  
  RESULTS
  Western blot results indicated that there was PCDGF expression both in NSCLC patients and healthy adults, and the expressing intensity of PCDGF in NSCLC patients was higher than that in healthy adults. The result of ELISA showed PCDGF expression in the patients whoever was chemoresistant or chemosensitive was significantly higher than that in healthy adults (P < 0.01), However, in chemoresistant patients, it was significantly higher than that in chemosensitive with a borderline statistical difference (P < 0.05).
  
  
  CONCLUSIONS
  PC cell-derived growth factor is found to be not only expressed in healthy adult but also in NSCLC patient at a high level in the serum, which may indicate metastasis and active proliferation in NSCLC. The intensity of PCDGF expression may be correlated with chemotherapy response and the high level expressing of PCDGF may indicate resistant to platinum-based chemotherapeutic regimen.
authors.affiliation: Department of Medical Oncology, Cancer Hospital (Institute), Chinese Academy Of Medical Sciences, Peking Union Medical College, Beijing 100021, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Hu
authors.forename: Feng-yi
authors.initials: FY
authors.lastname: Feng
authors.forename: Shu-jun
authors.initials: SJ
authors.lastname: Chen
authors.forename: Yan-ning
authors.initials: YN
authors.lastname: Gao
authors.forename: Ting
authors.initials: T
authors.lastname: Xiao
authors.forename: You-ning
authors.initials: YN
authors.lastname: Liu
mesh_terms: D000328:Adult; D000368:Aged; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use*; D015153:Blotting, Western; D002289:Carcinoma, Non-Small-Cell Lung / Q000097:blood* / Q000188:drug therapy; D002945:Cisplatin / Q000008:administration & dosage; D018432:Drug Resistance, Multiple; D019008:Drug Resistance, Neoplasm; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D006801:Humans; D036341:Intercellular Signaling Peptides and Proteins / Q000097:blood*; D008175:Lung Neoplasms / Q000097:blood* / Q000188:drug therapy; D008297:Male; D008875:Middle Aged; D017239:Paclitaxel / Q000008:administration & dosage; D000077153:Progranulins; D012074:Remission Induction; D014747:Vinblastine / Q000008:administration & dosage / Q000031:analogs & derivatives; D000077235:Vinorelbine
chemical_list: C492314:GRN protein, human; D036341:Intercellular Signaling Peptides and Proteins; D000077153:Progranulins; D014747:Vinblastine; D017239:Paclitaxel; D002945:Cisplatin; D000077235:Vinorelbine