PMID- 25346504 OWN - NLM STAT- MEDLINE DCOM- 20150721 LR - 20211021 IS - 1530-0277 (Electronic) IS - 0145-6008 (Linking) VI - 38 IP - 10 DP - 2014 Oct TI - Ethanol supports macrophage recruitment and reinforces invasion and migration of Lewis lung carcinoma. PG - 2597-606 LID - 10.1111/acer.12512 [doi] AB - BACKGROUND: Inflammation plays a critical role in cancer progression, and our data suggested that ethanol (EtOH) could promote the progression of breast cancer via increased monocyte chemo-attractant protein-1 (MCP-1). Thus, we investigated the effects of EtOH on lung cancer growth and metastasis to explore whether immunosuppression had a role. METHODS: C57BL/6 mice (n = 10) implanted with Lewis lung cancer (LLC) cells were used to model physiologically relevant EtOH intake on tumor growth and inflammation after macrophage polarization. Tumors were isolated and measured, and MCP-1 expression was measured via immunohistochemistry and Western blot. Recruitment of macrophages using CD11b and F4/80 antibodies was detected with immunohistochemistry and flow cytometry. Changes in arginase I and inducible nitric oxide synthase (iNOS) expression were measured with immunofluorescent microscopy. EtOH's effect on in vitro tumor angiogenesis was evaluated in culture, and the tumor microvessel density was assessed with CD31 immunohistochemistry. Matrix metalloproteinase 9 and interleukin 10 expressions were measured by Western blot, ELISA, and immunohistochemistry. Finally, we treated a macrophage cell line RAW264.7 with EtOH and measured changes in arginase I and iNOS expression. RESULTS: With EtOH exposure, macrophage density was positively correlated with MCP-1 expression. Macrophages infiltrated the tumor site, becoming tumor-associated macrophages that polarized to M2 phenotypes (ArgI(high) /iNOS(low) ) after EtOH treatment. Cancerous cells interacted with immune cells, especially M2 macrophages, and promoted tumor angiogenesis, progression, and invasiveness. RAW264.7 cells stimulated with EtOH expressed more arginase I and less iNOS than controls. These results agreed with the features of M2 phenotype macrophages (ArgI(high) /iNOS(low) ). CONCLUSIONS: Data show that EtOH induced M2 phenotype macrophages, suggesting that progression and metastasis of LLC may be mediated by recruitment of M2 macrophages, especially under the influence of EtOH. CI - Copyright (c) 2014 by the Research Society on Alcoholism. FAU - Yu, Keke AU - Yu K AD - Department of Biaobank, Shanghai Chest Hospital, Shanghai JiaoTong University, Shanghai, China; Department of Pathophysiology, Anhui Medical University, Hefei, Anhui, China; Department of Immunology, Anhui Medical University, Hefei, Anhui, China. FAU - Yang, Jinlian AU - Yang J FAU - Wang, Fei AU - Wang F FAU - Chen, Li AU - Chen L FAU - Lu, Yanmin AU - Lu Y FAU - Luo, Jia AU - Luo J FAU - Wang, Siying AU - Wang S LA - eng GR - R01 AA017226/AA/NIAAA NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Alcohol Clin Exp Res JT - Alcoholism, clinical and experimental research JID - 7707242 RN - 0 (Ccl2 protein, mouse) RN - 0 (Chemokine CCL2) RN - 130068-27-8 (Interleukin-10) RN - 3K9958V90M (Ethanol) RN - EC 1.14.13.39 (Nitric Oxide Synthase Type II) RN - EC 3.4.24.35 (Matrix Metalloproteinase 9) RN - EC 3.5.3.1 (Arg1 protein, mouse) RN - EC 3.5.3.1 (Arginase) SB - IM MH - Animals MH - Arginase/metabolism MH - Carcinoma, Lewis Lung/metabolism/*pathology MH - Cell Line MH - Cell Movement/*drug effects MH - Cell Proliferation/drug effects MH - Chemokine CCL2/metabolism MH - Disease Models, Animal MH - Ethanol/*pharmacology MH - Female MH - Interleukin-10/metabolism MH - Lung Neoplasms/metabolism/*pathology MH - Macrophages/*drug effects/metabolism/*pathology MH - Male MH - Matrix Metalloproteinase 9/metabolism MH - Mice, Inbred C57BL MH - Neoplasm Invasiveness/*pathology MH - Neovascularization, Pathologic/pathology MH - Nitric Oxide Synthase Type II/metabolism OTO - NOTNLM OT - Ethanol OT - Lewis Lung Carcinoma OT - M2 Macrophages OT - Monocyte Chemo-Attractant Protein-1 OT - Tumor-Associated Macrophages EDAT- 2014/10/28 06:00 MHDA- 2015/07/22 06:00 CRDT- 2014/10/28 06:00 PHST- 2014/02/23 00:00 [received] PHST- 2014/07/08 00:00 [accepted] PHST- 2014/10/28 06:00 [entrez] PHST- 2014/10/28 06:00 [pubmed] PHST- 2015/07/22 06:00 [medline] AID - 10.1111/acer.12512 [doi] PST - ppublish SO - Alcohol Clin Exp Res. 2014 Oct;38(10):2597-606. doi: 10.1111/acer.12512.