Laboratory Medicine ›› 2021, Vol. 36 ›› Issue (11): 1151-1158.DOI: 10.3969/j.issn.1673-8640.2021.11.012

Previous Articles     Next Articles

Expression of programmed cell death 5 in breast cancer and its clinical value

LIU Xiufen1, AO Hongfeng1(), AO Jinping2   

  1. 1. Department of Pathology,Fengxian District Central Hospital,Shanghai 201400,China
    2. Department of Surgery,Fengxian Nanqiao Community Health Service Center,Shanghai 201400,China
  • Received:2020-08-17 Online:2021-11-30 Published:2021-12-20
  • Contact: AO Hongfeng

Abstract:

Objective To investigate the relationship between the expression of programmed cell death 5(PDCD5) protein and axillary lymph node metastasis in breast cancer. Methods The expressions of PDCD5,cyclin(Cyclin) D1,Ki-67,chemokine receptor 4(CXCR4) and E-cadherin(E-cad) were determined by immunohistochemical method. The clinicopathologic characteristics of all the patients were collected,and they were followed up for 5 years. The progression-free survival(PFS)and overall survival(OS) were calculated. Spearman correlation analysis was used to evaluate the correlation between projects. Kaplan-Meier survival curve was used to analyze the survival rate of patients with breast cancer. Cox regression proportional hazard model was used to analyze the prognostic factors of patients with breast cancer. Results The positive expression rate of PDCD5 protein in breast cancer tissues was 25.0%(40/160),which was lower than that in adjacent normal tissues [60.0%(96/160)] (P=0.000). The expression of PDCD5 protein had statistical significance among different TNM stages,histological differentiation,lymph node metastasis,myometrial invasion,vascular invasion and different expression states of estrogen receptor(ER),progesterone receptor(PR) and human epidermal growth factor receptor 2(HER-2)(P<0.05). There was no relation among different ages,menstrual states,tumor diameters and molecular types of breast cancer(P>0.05). The results of Spearman correlation analysis showed that the expression of PDCD5 protein was positively correlated with the number of axillary lymph node metastasis(r=0.428,P=0.000),it was negatively correlated with the expression of Cyclin D1,Ki-67 and CXCR4(r=-0.217,-0.220 and -0.271,respectively,P<0.05),and it was positively correlated with the expression of E-cad(r=0.464,P=0.000). The results of Cox regression proportional hazard model showed that TNM stage Ⅲ-Ⅳ,low tissue differentiation,myometrial invasion,vascular invasion,PDCD5 positive,ER negative,PR negative and HER-2 positive were the risk factors of axillary lymph node metastasis in breast cancer. Conclusions The low expression of PDCD5 in breast cancer may promote the occurrence of axillary lymph node metastasis by regulating exercise-related protein Cyclin D1,Ki-67,CXCR4 and E-cad.

Key words: Programmed cell death 5, Breast cancer, Axillary lymph node metastasis

CLC Number: