PMID- 37351997 OWN - NLM STAT- MEDLINE DCOM- 20230630 LR - 20230630 IS - 1791-7530 (Electronic) IS - 0250-7005 (Linking) VI - 43 IP - 7 DP - 2023 Jul TI - Tissue Expression and Prognostic Role of CXCL12 and CXCR4 in High-grade Serous Ovarian Carcinoma. PG - 3331-3340 LID - 10.21873/anticanres.16509 [doi] AB - BACKGROUND/AIM: The complex of C-X-C motif chemokine receptor 4 (CXCR4) and its ligand, C-X-C motif chemokine ligand 12 (CXCL12), plays an essential role in cancer cell proliferation, invasion, and metastasis. These are emerging therapeutic targets, and recent studies have reported that inhibition of CXCL12-CXCR4 signaling pathway enhances the effects of immune checkpoint inhibitors. Thus, we aimed to investigate tissue expression of CXCL12 and CXCR4 in high-grade serous ovarian carcinoma (HGSOC) and to determine their potential as prognostic markers. PATIENTS AND METHODS: We used chemotherapy-naive, formalin-fixed paraffin-embedded primary ovarian cancer tissues obtained from patients with advanced-stage HGSOC at the time of primary cytoreductive surgery. After histological reassessment, we constructed a tissue microarray and performed immunohistochemical staining for CXCL12 and CXCR4. Thereafter, clinicopathological characteristics and survival outcomes were compared between the high- and low-expression groups. RESULTS: A total of 97 patients with FIGO stage IIIC-IV HGSOC were included: 15 (15.5%), 66 (68.0%), and 13 (13.4%) patients showed high expression of CXCL12, CXCR4, and both, respectively. The expression level of each protein was not associated with germline BRCA1/2 mutational status, FIGO stage, or residual tumor after primary cytoreductive surgery. In multivariate analysis adjusted for confounders, high CXCL12 expression was identified as an independent poor prognostic biomarker for progression-free survival (adjusted hazards ratio, 1.990; 95% confidence interval=1.090-3.633; p=0.025). However, CXCR4 expression was not associated with patient survival outcomes. CONCLUSION: The CXCL12 expression level may represent a prognostic biomarker for HGSOC. Proteins related to the CXCL12/CXCR4 complex may serve as therapeutic targets in HGSOC treatment. CI - Copyright (c) 2023 International Institute of Anticancer Research (Dr. George J. Delinasios), All rights reserved. FAU - Lim, Hyunji AU - Lim H AD - Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea. FAU - Kim, Se Ik AU - Kim SI AD - Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea. FAU - Kim, Eun Na AU - Kim EN AD - Department of Pathology, Seoul National University College of Medicine, Seoul, Republic of Korea. FAU - Lee, Maria AU - Lee M AD - Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea. FAU - Lee, Cheol AU - Lee C AD - Department of Pathology, Seoul National University College of Medicine, Seoul, Republic of Korea. FAU - Kim, Jae-Weon AU - Kim JW AD - Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea. FAU - Chung, Hyun Hoon AU - Chung HH AD - Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea; chhkmj1@snu.ac.kr. LA - eng PT - Journal Article PL - Greece TA - Anticancer Res JT - Anticancer research JID - 8102988 RN - 0 (Biomarkers) RN - 0 (BRCA1 Protein) RN - 0 (BRCA1 protein, human) RN - 0 (BRCA2 Protein) RN - 0 (BRCA2 protein, human) RN - 0 (Chemokine CXCL12) RN - 0 (CXCL12 protein, human) RN - 0 (CXCR4 protein, human) RN - 0 (Ligands) RN - 0 (Receptors, CXCR4) SB - IM MH - Female MH - Humans MH - Biomarkers MH - BRCA1 Protein/metabolism MH - BRCA2 Protein MH - *Chemokine CXCL12/genetics/metabolism MH - Ligands MH - *Ovarian Neoplasms/pathology MH - Prognosis MH - *Receptors, CXCR4/genetics/metabolism MH - Signal Transduction OTO - NOTNLM OT - CXCR4 receptor OT - Ovarian cancer OT - biomarkers OT - chemokine CXCL12 OT - immunohistochemistry OT - prognosis EDAT- 2023/06/23 19:11 MHDA- 2023/06/26 06:41 CRDT- 2023/06/23 12:13 PHST- 2023/05/07 00:00 [received] PHST- 2023/05/23 00:00 [revised] PHST- 2023/05/24 00:00 [accepted] PHST- 2023/06/26 06:41 [medline] PHST- 2023/06/23 19:11 [pubmed] PHST- 2023/06/23 12:13 [entrez] AID - 43/7/3331 [pii] AID - 10.21873/anticanres.16509 [doi] PST - ppublish SO - Anticancer Res. 2023 Jul;43(7):3331-3340. doi: 10.21873/anticanres.16509.