Conclusions Interleukin-10 expression in tumor-associated macrophages correlates with disease aggressiveness of non-small cell lung cancer. We plan to conduct further studies to analyze the relationship between IL-10 in TAM and survival. The study concerning regulation of IL-10 in TAM is ongoing too. It will help to clarify and understand the possible mechanisms IL-10 secreted by TAM in the progression of NSCLC. Acknowledgements This work is supported,
in part, by National Natural Science Foundation of China (30800404), Shanghai Rising-Star Program (09QA1401200), Pujiang Talent Grant, (to J. Z), Young Investigator Grant from Shanghai Municipal Health Bureau.and Basic-clinical medicine grant (to H-Q C). We thank Shannon Wyszomierski for her editorial assistance. References 1. Pollard JW: Tumour-educated macrophages promote tumour progression and metastasis. Nat Rev Cancer 2004,4(1):71–78.PubMedCrossRef 2. Balkwill F, Mantovani XL184 manufacturer A: Inflammation and cancer: back to Virchow?
Lancet 2001,357(9255):539–545.PubMedCrossRef 3. Joyce JA, Pollard JW: Microenvironmental regulation check details of metastasis. Nat Rev Cancer 2009,9(4):239–252.PubMedCrossRef 4. Ohno S, Ohno Y, Suzuki N, Kamei T, Koike K, Inagawa H, Kohchi C, Soma G, Inoue M: Correlation of histological localization of tumor-associated macrophages with clinicopathological features in endometrial cancer. Anticancer Res 2004,24(5C):3335–3342.PubMed 5. Takanami I, Takeuchi K, Kodaira S: Tumor-associated macrophage infiltration in pulmonary adenocarcinoma: association with angiogenesis and poor prognosis. RG7420 in vitro Oncology 1999,57(2):138–142.PubMedCrossRef
6. Leek RD, Lewis CE, Whitehouse R, Greenall M, Clarke J, Harris AL: Association of macrophage infiltration with angiogenesis and prognosis in invasive breast carcinoma. Cancer Res 1996,56(20):4625–4629.PubMed 7. Lissbrant IF, Stattin P, Wikstrom P, Damber JE, Egevad L, Bergh A: Tumor associated macrophages in human prostate cancer: relation to clinicopathological variables and survival. Int J Oncol 2000,17(3):445–451.PubMed 8. Hanada T, Nakagawa M, Emoto A, Nomura T, Nasu N, Nomura Y: Prognostic value of tumor-associated macrophage Janus kinase (JAK) count in human bladder cancer. Int J Urol 2000,7(7):263–269.PubMedCrossRef 9. Chen JJ, Lin YC, Yao PL, Yuan A, Chen HY, Shun CT, Tsai MF, Chen CH, Yang PC: Tumor-associated macrophages: the double-edged sword in cancer progression. J Clin Oncol 2005,23(5):953–964.PubMedCrossRef 10. Gocheva V, Wang HW, Gadea BB, Shree T, Hunter KE, Garfall AL, Berman T, Joyce JA: IL-4 induces cathepsin protease activity in tumor-associated macrophages to promote cancer growth and invasion. Genes Dev 2010,24(3):241–255.PubMedCrossRef 11. Lindahl C, Simonsson M, Bergh A, Thysell E, Antti H, Sund M, Wikstrom P: Increased levels of macrophage-secreted cathepsin S during prostate cancer progression in TRAMP mice and patients. Cancer Genomics Proteomics 2009,6(3):149–159.PubMed 12.