PMID- 23874805 OWN - NLM STAT- MEDLINE DCOM- 20140213 LR - 20211021 IS - 1932-6203 (Electronic) IS - 1932-6203 (Linking) VI - 8 IP - 7 DP - 2013 TI - Identification of serum monocyte chemoattractant protein-1 and prolactin as potential tumor markers in hepatocellular carcinoma. PG - e68904 LID - 10.1371/journal.pone.0068904 [doi] LID - e68904 AB - Early diagnosis of hepatocellullar carcinoma (HCC) remains a challenge. The current practice of serum alpha-fetoprotein (AFP) measurement is inadequate. Here we utilized a proteomic approach to identify novel serum biomarkers for distinguishing HCC patients from non-cancer controls. We profiled the serum proteins in a group of 58 resectable HCC patients and 11 non-HCC chronic hepatitis B (HBV) carrier samples from the Singapore General Hospital (SGH) using the RayBio(R) L-Series 507 Antibody Array and found 113 serum markers that were significantly modulated between HCC and control groups. Selected potential biomarkers from this list were quantified using a multiplex sandwich enzyme-linked immunosorbent assay (ELISA) array in an expanded SGH cohort (126 resectable HCC patients and 115 non-HCC chronic HBV carriers (NC group)), confirming that serum prolactin and monocyte chemoattractant protein-1 (MCP-1) were significantly upregulated in HCC patients. This finding of serum MCP-1 elevation in HCC patients was validated in a separate cohort of serum samples from the Mochtar Riady Institute for Nanotechnology, Indonesia (98 resectable HCC, 101 chronic hepatitis B patients and 100 asymptomatic HBV/HCV carriers) by sandwich ELISA. MCP-1 and prolactin levels were found to correlate with AFP, while MCP-1 also correlated with disease stage. Subsequent receiver operating characteristic (ROC) analysis of AFP, prolactin and MCP-1 in the SGH cohort and comparing their area under the ROC curve (AUC) indicated that neither prolactin nor MCP-1 on their own performed better than AFP. However, the combination of AFP+MCP-1 (AUC, 0.974) had significantly superior discriminative ability than AFP alone (AUC, 0.942; p<0.001). In conclusion, prolactin and MCP-1 are overexpressed in HCC and are conveniently quantifiable in patients' sera by ELISA. MCP-1 appears to be a promising complementary biomarker for HCC diagnosis and this MCP-1+AFP model should be further evaluated as potential biomarker on a larger scale in patients at-risk of HCC. FAU - Wang, Who-Whong AU - Wang WW AD - Department of Medical Oncology, National Cancer Centre Singapore, Singapore, Singapore. FAU - Ang, Soo Fan AU - Ang SF FAU - Kumar, Rajneesh AU - Kumar R FAU - Heah, Charmain AU - Heah C FAU - Utama, Andi AU - Utama A FAU - Tania, Navessa Padma AU - Tania NP FAU - Li, Huihua AU - Li H FAU - Tan, Sze Huey AU - Tan SH FAU - Poo, Desmond AU - Poo D FAU - Choo, Su Pin AU - Choo SP FAU - Chow, Wan Cheng AU - Chow WC FAU - Tan, Chee Kiat AU - Tan CK FAU - Toh, Han Chong AU - Toh HC LA - eng PT - Journal Article PT - Multicenter Study PT - Research Support, Non-U.S. Gov't PT - Validation Study DEP - 20130718 PL - United States TA - PLoS One JT - PloS one JID - 101285081 RN - 0 (Biomarkers, Tumor) RN - 0 (Chemokine CCL2) RN - 9002-62-4 (Prolactin) SB - IM MH - Biomarkers, Tumor/*blood MH - Carcinoma, Hepatocellular/blood/*diagnosis MH - Chemokine CCL2/*blood MH - Cohort Studies MH - Enzyme-Linked Immunosorbent Assay MH - Humans MH - Indonesia MH - Liver Neoplasms/blood/*diagnosis MH - Prolactin/*blood MH - Proteomics MH - ROC Curve MH - Singapore PMC - PMC3715515 COIS- Competing Interests: The authors have declared that no competing interests exist. EDAT- 2013/07/23 06:00 MHDA- 2014/02/14 06:00 PMCR- 2013/07/18 CRDT- 2013/07/23 06:00 PHST- 2012/12/17 00:00 [received] PHST- 2013/05/31 00:00 [accepted] PHST- 2013/07/23 06:00 [entrez] PHST- 2013/07/23 06:00 [pubmed] PHST- 2014/02/14 06:00 [medline] PHST- 2013/07/18 00:00 [pmc-release] AID - PONE-D-12-39995 [pii] AID - 10.1371/journal.pone.0068904 [doi] PST - epublish SO - PLoS One. 2013 Jul 18;8(7):e68904. doi: 10.1371/journal.pone.0068904. Print 2013.