The DOI matches its Crossref record; 10 of the 10 references it cites were found in a registry or an index.
Role of Bv8 in neutrophil-dependent angiogenesis in a transgenic model of cancer progression
Open accessAbstract
The secreted Bv8 protein has been recently characterized as a regulator of myeloid cell mobilization and a neutrophil-derived mediator of tumor angiogenesis in several xenografts, but its role in tumor progression in an endogenous setting was unknown. The rat insulin promoter (RIP)–T-antigen (Tag) is a well characterized transgenic mouse model of multistage pancreatic β-cell tumorigenesis. Also, the role of neutrophils in RIP-Tag angiogenic switching, as assessed by systemic ablation using anti-Gr1 antibodies at different stages of tumor progression, has been recently described. Here, we show that early treatment of RIP-Tag mice with anti-Bv8 antibodies resulted in a significant reduction in the number of angiogenic islets relative to control antibody-treated mice, implicating Bv8 in the angiogenic switch during neoplasia. Histological analysis showed a significant reduction in vascular surface areas in hyperplastic and angiogenic lesions in pancreatic islets from anti-Bv8-treated mice. Anti-Bv8 treatment also inhibited the mobilization and homing of CD11b+Gr1+ cells to the peripheral blood and the emerging neoplastic lesions. However, anti-Bv8 treatment had no effect on tumor vascularization or burden when initiated at later stages of tumor progression. The stage-dependent efficacy of anti-Bv8 treatment appears remarkably similar to that reported after neutrophil ablation, suggesting that Bv8 is an important mediator of neutrophil-dependent angiogenesis in this transgenic model. In summary, our studies verify a role for Bv8 in the mobilization and recruitment of myeloid cells and in the induction of tumor angiogenesis in the early stages of neoplastic progression.
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Metadata
- Authors
- Shojaei, F., Singh, M., Thompson, J. D., & Ferrara, N.
- Venue
- Proceedings of the National Academy of Sciences
- Published
- 2008-02-19
- Volume
- 105
- Issue
- 7
- Pages
- 2640-2645
- ISSN
- 0027-8424 (ISSN-L)
- 1091-6490
- OpenAlex
- W2001037898
- Cited by
- 334
- References
- 10
- FWCI
- 7.69
- Type
- journal article
- Language
- en
- Open access
- green
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
