title: [Expression of Ras-GTPase-activating protein SH 3 domain binding protein and osteopontin in esophageal squamous carcinoma and their effects on prognosis].
abstract: OBJECTIVE
  To investigate the expressions and significances of Ras-GTPase-activating protein SH 3 domain binding protein(G3BP) and osteopontin (OPN) proteins in esophageal squamous carcinoma (ESC).
  
  
  METHODS
  The expressions of G3BP and OPN proteins in 80 cases of ESC were detected by immunohistochemistry. The relationships between the 2 protein expression and tumor size, differentiation degree, TNM stage, lymph node metastasis and prognosis of ESC were also explored.
  
  
  RESULTS
  (1) The positive expression rate of G3BP in ESC was 71.3%, and the rate in lymphoid metastatic group was significantly higher than that in non lymphoid metastatic group (Z=-2.283, P=0.022), but no relations were found between G3BP expression and diameter of tumor, differentiation and TNM grade (P>0.05). The G3BP positive expression group had shorter survival time than G3BP negative expression group (P=0.000). (2) The positive expression rate of OPN in ESC was 100%, and the degree of OPN expression was correlated with the differentiation (chi(2)=10.766, P=0.005) and lymphoid metastasis (Z=-2.289, P=0.022), but no relationship was found between the diameter of tumor and TNM grade (P>0.05). The expression of OPN were significantly related to survivals in a negative time-dependent manner in ESC patients (P=0.000). (3) The expression of G3BP protein correlated positively with the degree of OPN expression in ESC tissue (r(s)=0.376, P=0.001).
  
  
  CONCLUSIONS
  The expressions of G3BP and OPN proteins have a close relationship with lymphoid metastasis and survival in ESC patients. G3BP and OPN proteins can be considered as predictors of prognosis in ESC patients.
authors.affiliation: Department of Cardiothoracic Surgery, The Second Affiliated Hospital, Sun Yat-sen University, Guangzhou 510120, China.
authors.forename: Jin-Geng
authors.initials: JG
authors.lastname: Liu
authors.forename: Hui-Zhong
authors.initials: HZ
authors.lastname: Zhang
authors.forename: Yi-Ping
authors.initials: YP
authors.lastname: Wei
authors.forename: Cheng
authors.initials: C
authors.lastname: Wu
authors.forename: Yong-Ke
authors.initials: YK
authors.lastname: Cao
authors.forename: Mei
authors.initials: M
authors.lastname: Wang
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002294:Carcinoma, Squamous Cell / Q000378:metabolism* / Q000473:pathology; D002352:Carrier Proteins / Q000378:metabolism*; D004265:DNA Helicases; D004938:Esophageal Neoplasms / Q000378:metabolism* / Q000473:pathology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007150:Immunohistochemistry; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D053495:Osteopontin / Q000378:metabolism*; D000075223:Poly-ADP-Ribose Binding Proteins; D011379:Prognosis; D020365:RNA Helicases; D000067776:RNA Recognition Motif Proteins
chemical_list: D002352:Carrier Proteins; D000075223:Poly-ADP-Ribose Binding Proteins; D000067776:RNA Recognition Motif Proteins; D053495:Osteopontin; D004265:DNA Helicases; C116070:G3BP1 protein, human; D020365:RNA Helicases