Abstract
Background: The incidence and mortality of breast cancer are increasing annually. Breast cancer seriously threatens women's health and quality of life. We aimed to measure the clinical value of CPN1, a new serum marker of breast cancer and to evaluate the efficacy of CPN1 in combination with CA15-3.
Methods: Seventy samples of breast cancer with lymph node metastasis, seventy-three samples of nonmetastatic breast cancer and twenty-five samples of healthy human serum were collected. Serum CA15-3 concentration was determined by Roche Elecsys, and serum CPN1 concentration was determined by ELISA.
Results: In breast cancer patients, serum CPN1 concentration was positively correlated with tumour size, clinical stage and CA15-3 concentration (r = 0.376, P<0.0001). ROC curve analysis showed that the optimal critical concentration of CPN1 for breast cancer diagnosis was 32.8pg/ml. The optimal critical concentration of CPN1 in the diagnosis of metastatic breast cancer was 66.121pg/ml. CPN1 has a greater diagnostic ability for breast cancer (AUCCA15-3=0.702 vs. AUCCPN1=0.886, P<0.0001) and metastatic breast cancer (AUCCA15-3=0.629 vs. AUCCPN1=0.887, P<0.0001) than CA15-3, and the combined detection of CA15-3 and CPN1 can improve the diagnostic efficiency for breast cancer (AUCCA15-3+CPN1=0.916) and for distinguishing between metastatic and non-metastatic breast cancer (AUCCA15-3+CPN1=0.895).
Conclusion: CPN1 can be used as a new tumour marker to diagnose and evaluate the invasion and metastasis of breast cancer. The combined detection of CPN1 and CA15-3 is more accurate and has a certain value in clinical application.
Keywords: Biomarker panel, carboxypeptidase N1, CA15-3, breast cancer, metastasis, clinical application.
Graphical Abstract
[http://dx.doi.org/10.3322/caac.21338] [PMID: 26808342]
[http://dx.doi.org/10.1093/annonc/mds604] [PMID: 23230137]
[http://dx.doi.org/10.1016/j.breast.2013.11.003] [PMID: 24291374]
[http://dx.doi.org/10.1261/rna.1034808] [PMID: 18812439]
[http://dx.doi.org/10.1186/s12885-015-1423-6] [PMID: 25972110]
[http://dx.doi.org/10.1186/s40064-015-1071-y] [PMID: 26090312]
[http://dx.doi.org/10.1002/1097-0142(19880801)62:3<531:AID-CNCR2820620315>3.0.CO;2-B] [PMID: 3134120]
[http://dx.doi.org/10.1373/clinchem.2013.211953] [PMID: 24146311]
[http://dx.doi.org/10.2174/1871520616666160201104939] [PMID: 26860443]
[http://dx.doi.org/10.3892/ijo.2019.4675] [PMID: 30628666]
[http://dx.doi.org/10.7150/jca.15209] [PMID: 27390594]
[http://dx.doi.org/10.1073/pnas.1720588115] [PMID: 29669919]
[http://dx.doi.org/10.1093/dote/dox011] [PMID: 28475748]
[http://dx.doi.org/10.1002/pros.22793] [PMID: 24615730]
[http://dx.doi.org/10.1089/dna.2016.3398] [PMID: 27494742]
[http://dx.doi.org/10.1002/cbin.10113] [PMID: 23589395]
[http://dx.doi.org/10.1007/s00401-011-0940-x] [PMID: 22249620]
[http://dx.doi.org/10.1172/JCI40433] [PMID: 21285511]
[http://dx.doi.org/10.1016/j.humpath.2004.06.014] [PMID: 15492986]
[http://dx.doi.org/10.1016/j.cca.2012.11.012] [PMID: 23178445]
[http://dx.doi.org/10.1038/modpathol.2008.84] [PMID: 18500263]
[http://dx.doi.org/10.1007/s00432-007-0304-z] [PMID: 17922141]
[http://dx.doi.org/10.18632/oncotarget.15158] [PMID: 28186967]
[http://dx.doi.org/10.1016/j.intimp.2007.07.014] [PMID: 18039526]
[http://dx.doi.org/10.1124/pr.57.1.2] [PMID: 15734727]
[http://dx.doi.org/10.1016/0076-6879(95)48042-0] [PMID: 7674952]
[http://dx.doi.org/10.3322/caac.21262] [PMID: 25651787]
[http://dx.doi.org/10.1111/jth.14199] [PMID: 29883024]
[http://dx.doi.org/10.1021/acs.jproteome.6b00010] [PMID: 27058005]
[http://dx.doi.org/10.1074/jbc.M111.301002] [PMID: 22262859]
[http://dx.doi.org/10.1038/sj.cdd.4402062] [PMID: 17096023]
[http://dx.doi.org/10.1038/sj.cdd.4402079] [PMID: 17205079]
[http://dx.doi.org/10.1007/BF01025034] [PMID: 1449602]
[http://dx.doi.org/10.1210/er.2011-1039] [PMID: 22402194]
[http://dx.doi.org/10.1007/s13277-014-2564-y] [PMID: 25374060]
[http://dx.doi.org/10.1074/mcp.M114.041335] [PMID: 25903579]
[http://dx.doi.org/10.1186/s13046-019-1196-x] [PMID: 31068208]
[http://dx.doi.org/10.1016/j.clbc.2018.07.020] [PMID: 30143449]