PMID- 29867925 OWN - NLM STAT- MEDLINE DCOM- 20190722 LR - 20190722 IS - 1664-3224 (Print) IS - 1664-3224 (Electronic) IS - 1664-3224 (Linking) VI - 9 DP - 2018 TI - Breast Cancer-Derived Exosomes Alter Macrophage Polarization via gp130/STAT3 Signaling. PG - 871 LID - 10.3389/fimmu.2018.00871 [doi] LID - 871 AB - Tumor-derived exosomes are being recognized as essential mediators of intercellular communication between cancer and immune cells. It is well established that bone marrow-derived macrophages (BMDMs) take up tumor-derived exosomes. However, the functional impact of these exosomes on macrophage phenotypes is controversial and not well studied. Here, we show that breast cancer-derived exosomes alter the phenotype of macrophages through the interleukin-6 (IL-6) receptor beta (glycoprotein 130, gp130)-STAT3 signaling pathway. Addition of breast cancer-derived exosomes to macrophages results in the activation of the IL-6 response pathway, including phosphorylation of the key downstream transcription factor STAT3. Exosomal gp130, which is highly enriched in cancer exosomes, triggers the secretion of IL-6 from BMDMs. Moreover, the exposure of BMDMs to cancer-derived exosomes triggers changes from a conventional toward a polarized phenotype often observed in tumor-associated macrophages. All of these effects can be inhibited through the addition of a gp130 inhibitor to cancer-derived exosomes or by blocking BMDMs exosome uptake. Collectively, this work demonstrates that breast cancer-derived exosomes are capable of inducing IL-6 secretion and a pro-survival phenotype in macrophages, partially via gp130/STAT3 signaling. FAU - Ham, Sunyoung AU - Ham S AD - Tumour Microenvironment Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia. AD - Faculty of Health, School of Biomedical Sciences, Queensland University of Technology, Brisbane, QLD, Australia. FAU - Lima, Luize G AU - Lima LG AD - Tumour Microenvironment Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia. FAU - Chai, Edna Pei Zhi AU - Chai EPZ AD - Tumour Microenvironment Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia. AD - Faculty of Medicine, University of Queensland, Brisbane, QLD, Australia. FAU - Muller, Alexandra AU - Muller A AD - Tumour Microenvironment Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia. AD - Faculty of Medical Biology, University Duisburg-Essen, Essen, Germany. FAU - Lobb, Richard J AU - Lobb RJ AD - Tumour Microenvironment Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia. AD - Faculty of Medicine, University of Queensland, Brisbane, QLD, Australia. FAU - Krumeich, Sophie AU - Krumeich S AD - Tumour Microenvironment Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia. FAU - Wen, Shu Wen AU - Wen SW AD - Centre for Inflammatory Diseases, Department of Medicine, School of Clinical Sciences, Monash University, Clayton, VIC, Australia. FAU - Wiegmans, Adrian P AU - Wiegmans AP AD - Tumour Microenvironment Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia. FAU - Moller, Andreas AU - Moller A AD - Tumour Microenvironment Laboratory, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia. AD - Faculty of Health, School of Biomedical Sciences, Queensland University of Technology, Brisbane, QLD, Australia. AD - Faculty of Medicine, University of Queensland, Brisbane, QLD, Australia. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20180508 PL - Switzerland TA - Front Immunol JT - Frontiers in immunology JID - 101560960 RN - 0 (Antineoplastic Agents) RN - 0 (Hydrazines) RN - 0 (Il6st protein, mouse) RN - 0 (Interleukin-6) RN - 0 (N'-(7-fluoroH-pyrrolo(1,2-a)quinoxalin-4-yl)pyrazine-2-carbohydrazide) RN - 0 (Quinoxalines) RN - 0 (STAT3 Transcription Factor) RN - 0 (Stat3 protein, mouse) RN - 0 (interleukin-6, mouse) RN - 133483-10-0 (Cytokine Receptor gp130) SB - IM MH - Animals MH - Antineoplastic Agents/pharmacology MH - Cell Line, Tumor MH - Coculture Techniques MH - Cytokine Receptor gp130/antagonists & inhibitors/immunology/metabolism MH - Exosomes/drug effects/*immunology/metabolism MH - Female MH - Hydrazines/pharmacology MH - Interleukin-6/immunology/metabolism MH - Macrophage Activation/drug effects/immunology MH - Macrophages/cytology/*immunology/metabolism MH - Mammary Neoplasms, Experimental/*immunology/pathology MH - Mice MH - Mice, Inbred C57BL MH - Primary Cell Culture MH - Quinoxalines/pharmacology MH - STAT3 Transcription Factor/immunology/metabolism MH - Signal Transduction/drug effects/*immunology MH - Tumor Microenvironment/*immunology PMC - PMC5951966 OTO - NOTNLM OT - STAT3 OT - breast cancer OT - cancer-derived exosomes OT - glycoprotein 130 OT - interleukin-6 OT - tumor-associated macrophages EDAT- 2018/06/06 06:00 MHDA- 2018/06/06 06:01 PMCR- 2018/01/01 CRDT- 2018/06/06 06:00 PHST- 2017/11/27 00:00 [received] PHST- 2018/04/09 00:00 [accepted] PHST- 2018/06/06 06:00 [entrez] PHST- 2018/06/06 06:00 [pubmed] PHST- 2018/06/06 06:01 [medline] PHST- 2018/01/01 00:00 [pmc-release] AID - 10.3389/fimmu.2018.00871 [doi] PST - epublish SO - Front Immunol. 2018 May 8;9:871. doi: 10.3389/fimmu.2018.00871. eCollection 2018.