Expression of tyrosine 3-monooxygenase/tryptophan 5-monooxygenase activation protein zeta in breast cancer tissues and its effect on the biological function of breast cancer cells
10.13602/j.cnki.jcls.2025.03.12
- VernacularTitle:酪氨酸3单加氧酶/色氨酸5单加氧酶激活蛋白ζ在乳腺癌组织中的表达水平及其对乳腺癌细胞生物学功能的影响
- Author:
Jing GU
1
;
Lei YAN
1
;
Jian HUANG
1
Author Information
1. 南京医科大学附属淮安第一医院检验科,江苏淮安 223300
- Publication Type:Journal Article
- Keywords:
breast cancer;
tyrosine 3-monooxygenase/tryptophan 5-monooxygenase activation protein zeta;
migration;
invasion;
epi-thelial to mesenchymal transition
- From:
Chinese Journal of Clinical Laboratory Science
2025;43(3):227-232
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the expression level of tyrosine 3-monooxygenase/tryptophan 5-monooxygenase activation protein zeta(YWHAZ)in breast cancer tissues and its effect on the proliferation,migration,and invasion ability of breast cancer MCF-7 cells.Methods Real-time quantitative PCR(qRT-PCR)was used to detect the expression levels of YWHAZ in the cancer tissues of 96 breast cancer patients.The correlations of the expression levels of YWHAZ in cancer tissues with clinical pathological parameters and prognosis of the patients were analyzed by the Pearson method.The effects of down-regulating YWHAZ on the proliferation,migration,and invasion ability of MCF-7 cells were verified by the CCK-8,cell scratch,and Transwell assays.The changes in the expression lev-els of epithelial-mesenchymal transition(EMT)related proteins such as E-cadherin and Vimentin were detected by the Western blot.Results The expression levels of YWHAZ in cancer tissues of patients with triple-negative breast cancer(2.659±0.214,t=2.815,P=0.012)and non-triple-negative breast cancer(1.822±0.165,t=5.079,P=0.001)were significantly higher than that in adjacent tissues.The expression levels of YWHAZ in breast cancer tissues were related to vascular invasion,lymph node metastasis,distant me-tastasis,TNM stage,pathological classification and recurrence(P＜0.05).Among the breast cancer patients with TNM stages I toⅣ,the recurrence-free survival rate(χ2=31.10,P＜0.000 1)and overall survival rate(χ2=18.99,P＜0.000 1)of patients with higher levels of YWHAZ were significantly shorter than those of patients with lower levels of YWHAZ.The expression level of YWHAZ was an independent risk factor for the poor prognosis of breast cancer patients.The down-regulation of YWHAZ could inhibit the proliferation(F=10.73,P=0.000 4),migration(t=20.88,P=0.002 3)and invasion(t=13.72,P=0.000 2)ability of MCF-7 cells.Western blot confirmed that down-regulating the expression of YWHAZ could lead to an increase in the levels of E-cadherin protein(4.478±0.832,t=8.45,P=0.013 7)and an reduce in the levels of Vimentin protein(0.549±0.143,t=6.86,P=0.020 6).Conclusion The abnormal high expression of YWHAZ is closely related to the occurrence,development,and poor prognosis of breast cancer.The down-regulation of YWHAZ can inhibit the proliferation,migration,invasion,and EMT progression of breast cancer MCF-7 cells.
