PMID- 27741522 OWN - NLM STAT- MEDLINE DCOM- 20170920 LR - 20220321 IS - 1949-2553 (Electronic) IS - 1949-2553 (Linking) VI - 8 IP - 11 DP - 2017 Mar 14 TI - The influence of PSA autoantibodies in prostate cancer patients: a prospective clinical study-II. PG - 17643-17650 LID - 10.18632/oncotarget.12620 [doi] AB - The U.S. Preventive Services Task Force (USPSTF) has recommended against PSA-based screening for prostate cancer due to potential possibilities of false-results. Since no alternative test is available to replace it, we have initiated a trial with the purpose of establishing whether Galectin-3 (Gal-3) serum level and/or the patients' immune response to PSA and Gal-3 antigens could complement the PSA test as diagnostic tools for prostate cancer patients. A blind, prospective, single institution, pilot study was conducted. A total of 95 men were recruited and classified into 5 different groups: healthy controls (Group1), newly diagnosed patients (Group2), no recurrence after local therapy (Group3), rising PSA after local therapy (Group4), and metastatic patients (Group5). The primary endpoints were the levels of serum PSA, PSA autoantibodies (AAPSA), Gal-3, and Gal-3 autoantibodies (AAGal-3). Data were analyzed by Spearman's rank correlation (rho) and least squares linear regression modeling. The expression levels of PSA, AAPSA, Gal-3, and AAGal-3 were determined in both healthy controls and prostate cancer patients. Negative correlations were observed between PSA and AAPSA levels among all 95 men combined (rho = -0.321, P = 0.0021; fitted slope -0.288, P = 0.0048), and in metastatic patients (rho = -0.472, P = 0.0413; fitted slope -1.145, P = 0.0061). We suggest an association between PSA and AAPSA, whereby the AAPSA may alter PSA levels. It provides a novel outlook for prostate cancer diagnosis, and should serve as a basis for an all-inclusive diagnostic trial centering on patients with metastasis. FAU - Nakajima, Kosei AU - Nakajima K AD - Department of Oncology, Karmanos Cancer Institute, School of Medicine, Wayne State University, Detroit, Michigan, USA. AD - Department of Pathology, Karmanos Cancer Institute, School of Medicine, Wayne State University, Detroit, Michigan, USA. FAU - Heilbrun, Lance K AU - Heilbrun LK AD - Department of Oncology, Karmanos Cancer Institute, School of Medicine, Wayne State University, Detroit, Michigan, USA. AD - Biostatistics Core, Karmanos Cancer Institute, Wayne State University, Detroit, Michigan, USA. FAU - Smith, Daryn AU - Smith D AD - Department of Oncology, Karmanos Cancer Institute, School of Medicine, Wayne State University, Detroit, Michigan, USA. AD - Biostatistics Core, Karmanos Cancer Institute, Wayne State University, Detroit, Michigan, USA. FAU - Hogan, Victor AU - Hogan V AD - Department of Oncology, Karmanos Cancer Institute, School of Medicine, Wayne State University, Detroit, Michigan, USA. AD - Department of Pathology, Karmanos Cancer Institute, School of Medicine, Wayne State University, Detroit, Michigan, USA. FAU - Raz, Avraham AU - Raz A AD - Department of Oncology, Karmanos Cancer Institute, School of Medicine, Wayne State University, Detroit, Michigan, USA. AD - Department of Pathology, Karmanos Cancer Institute, School of Medicine, Wayne State University, Detroit, Michigan, USA. FAU - Heath, Elisabeth AU - Heath E AD - Department of Oncology, Karmanos Cancer Institute, School of Medicine, Wayne State University, Detroit, Michigan, USA. LA - eng GR - P30 CA022453/CA/NCI NIH HHS/United States PT - Clinical Trial PT - Journal Article PL - United States TA - Oncotarget JT - Oncotarget JID - 101532965 RN - 0 (Autoantibodies) RN - 0 (Autoantigens) RN - 0 (Biomarkers, Tumor) RN - 0 (Galectin 3) RN - EC 3.4.21.77 (Prostate-Specific Antigen) SB - IM MH - Aged MH - Autoantibodies/*blood MH - Autoantigens/immunology MH - Biomarkers, Tumor/*blood/immunology MH - Enzyme-Linked Immunosorbent Assay MH - Galectin 3/immunology MH - Humans MH - Male MH - Middle Aged MH - Pilot Projects MH - Prostate-Specific Antigen/blood/*immunology MH - Prostatic Neoplasms/*blood/immunology PMC - PMC5392275 OTO - NOTNLM OT - Galectin-3 OT - PSA autoantibody OT - PSA test OT - false-results OT - prostate cancer COIS- CONFLICTS OF INTEREST There are no potential conflicts to declare. EDAT- 2016/10/16 06:00 MHDA- 2017/09/21 06:00 PMCR- 2017/03/14 CRDT- 2016/10/15 06:00 PHST- 2016/08/17 00:00 [received] PHST- 2016/10/07 00:00 [accepted] PHST- 2016/10/16 06:00 [pubmed] PHST- 2017/09/21 06:00 [medline] PHST- 2016/10/15 06:00 [entrez] PHST- 2017/03/14 00:00 [pmc-release] AID - 12620 [pii] AID - 10.18632/oncotarget.12620 [doi] PST - ppublish SO - Oncotarget. 2017 Mar 14;8(11):17643-17650. doi: 10.18632/oncotarget.12620.