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Title: The tumour microenvironment creates a niche for the self-renewal of tumour-promoting macrophages in colon adenoma
Authors: Soncin, Irene
Sheng, Jianpeng
Chen, Qi
Foo, Shihui
Duan, Kaibo
Lum, Josephine
Poidinger, Michael
Zolezzi, Francesca
Karjalainen, Klaus
Ruedl, Christiane
Issue Date: 2018
Source: Soncin, I., Sheng, J., Chen, Q., Foo, S., Duan, K., Lum, J., et al. (2018). The tumour microenvironment creates a niche for the self-renewal of tumour-promoting macrophages in colon adenoma. Nature Communications, 9, 582-.
Series/Report no.: Nature Communications
Abstract: Circulating CCR2+ monocytes are crucial for maintaining the adult tissue-resident F4/80hiMHCIIhi macrophage pool in the intestinal lamina propria. Here we show that a subpopulation of CCR2-independent F4/80hiMHCIIlow macrophages, which are the most abundant F4/80hi cells in neonates, gradually decline in number in adulthood; these macrophages likely represent the fetal contribution to F4/80hi cells. In colon adenomas of ApcMin/+ mice, F4/80hiMHCIIlow macrophages are not only preserved, but become the dominant subpopulation among tumour-resident macrophages during tumour progression. Furthermore, these pro-tumoural F4/80hiMHCIIlow and F4/80hiMHCIIhi macrophages can self-renew in the tumour and maintain their numbers mostly independent from bone marrow contribution. Analyses of colon adenomas indicate that CSF1 may be a key facilitator of macrophage self-renewal. In summary, the tumour microenvironment creates an isolated niche for tissue-resident macrophages that favours macrophage survival and self-renewal.
DOI: 10.1038/s41467-018-02834-8
Rights: © 2018 The Author(s) (Nature Publishing Group).This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit
Fulltext Permission: open
Fulltext Availability: With Fulltext
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