Journal of Practical Oncology ›› 2022, Vol. 36 ›› Issue (2): 150-155.doi: 10.11904/j.issn.1002-3070.2022.02.009

• Clinical Research • Previous Articles     Next Articles

Expression of GAB2 in ovarian cancer and its correlation with prognosis

YIN Yi1,2, OU Chaoyang1, HE Aiqin2   

  1. 1. Nantong University,Nantong 226000,China;
    2. Affiliated Tumor Hospital of Nantong University
         
  • Received:2021-09-16 Revised:2022-03-01 Online:2022-04-28 Published:2022-04-28

Abstract: Objective The aim of this study was to evaluate the expression of Grb-associated binding protein 2(GAB2)in patients with ovarian cancer and its relationship with prognosis.Methods A total of 119 ovarian cancer tissues and adjacent tissues were collected from The Affiliated Tumor Hospital of Nantong University from January 2013 to January 2016.The expression of GAB2 in the tissues was detected by immunohistochemical staining,and its correlation with clinical characteristics was analyzed.The relationship between GAB2 expression and survival was analyzed by Kaplan-Meier survival curve.Cox proportional hazard regression model was used to analyze the risk factors affecting the prognosis of ovarian cancer patients.Finally,a Nomogram prognosis model was constructed to predict 3-year and 5-year survival rates of ovarian cancer patients based on Cox proportional hazard regression model.Results Compared with adjacent tissue,the expression of GAB2 was increased in tumor tissues(P<0.001).In addition,the level of GAB2 was significantly correlated with FIGO stage(P=0.004),the level of CA125 at initial diagnosis(P=0.005),and platinum-resistant recurrence(P<0.001).Kaplan-Meier curves showed that the high expression of GAB2 was associated with the decrease of OS(P<0.001).Univariate analysis showed that the level of GAB2,FIGO stage,CA125 level at initial diagnosis and platinum-resistant recurrence were associated with OS in ovarian cancer patients(P<0.05).Multivariate analysis showed that GAB2 expression was an independent factor affecting the prognosis of ovarian cancer patients.The Nomogram prognostic model had good predictive power for 3-year and 5-year survival in ovarian cancer patients,with a C-index of 0.801.Conclusion The expression of GAB2 can predict the prognosis of ovarian cancer patients,and is expected to be a potential target for ovarian cancer treatment

Key words: Ovarian cancer, Grb-associated binding protein 2, Prognosis

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