The DOI matches its Crossref record; 11 of the 11 references it cites were found in a registry or an index.
A distinguishing gene signature shared by tumor-infiltrating Tie2-expressing monocytes, blood “resident” monocytes, and embryonic macrophages suggests common functions and developmental relationships
Open accessAbstract
We previously showed that Tie2-expressing monocytes (TEMs) have nonredundant proangiogenic activity in tumors. Here, we compared the gene expression profile of tumor-infiltrating TEMs with that of tumor-associated macrophages (TAMs), spleen-derived Gr1+Cd11b+ neutrophils/myeloid-derived suppressor cells, circulating “inflammatory” and “resident” monocytes, and tumor-derived endothelial cells (ECs) by quantitative polymerase chain reaction–based gene arrays. TEMs sharply differed from ECs and Gr1+Cd11b+ cells but were highly related to TAMs. Nevertheless, several genes were differentially expressed between TEMs and TAMs, highlighting a TEM signature consistent with enhanced proangiogenic/tissue-remodeling activity and lower proinflammatory activity. We validated these findings in models of oncogenesis and transgenic mice expressing a microRNA-regulated Tie2-GFP reporter. Remarkably, resident monocytes and TEMs on one hand, and inflammatory monocytes and TAMs on the other hand, expressed coordinated gene expression profiles, suggesting that the 2 blood monocyte subsets are committed to distinct extravascular fates in the tumor microenvironment. We further showed that a prominent proportion of embryonic/fetal macrophages, which participate in tissue morphogenesis, expressed distinguishing TEM genes. It is tempting to speculate that Tie2+ embryonic/fetal macrophages, resident blood monocytes, and tumor-infiltrating TEMs represent distinct developmental stages of a TEM lineage committed to execute physiologic proangiogenic and tissue-remodeling programs, which can be coopted by tumors.
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Metadata
- Authors
- Pucci, F., Venneri, M. A., Biziato, D., Nonis, A., Moi, D., Sica, A., Di Serio, C., Naldini, L., & De Palma, M.
- Venue
- Blood
- Publisher
- American Society of Hematology
- Published
- 2009-07-23
- Volume
- 114
- Issue
- 4
- Pages
- 901-914
- ISSN
- 0006-4971 (ISSN-L)
- 1528-0020
- OpenAlex
- W2021955841
- Cited by
- 328
- References
- 11
- FWCI
- 13.24
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Pucci, F., Venneri, M. A., Biziato, D., Nonis, A., Moi, D., Sica, A., Di Serio, C., Naldini, L., & De Palma, M. (2009). A distinguishing gene signature shared by tumor-infiltrating Tie2-expressing monocytes, blood “resident” monocytes, and embryonic macrophages suggests common functions and developmental relationships. Blood. https://doi.org/10.1182/blood-2009-01-200931
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