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Endothelial cells require functional FLVCR1a during developmental and adult angiogenesis.
- Source :
-
Angiogenesis [Angiogenesis] 2023 Aug; Vol. 26 (3), pp. 365-384. Date of Electronic Publication: 2023 Jan 11. - Publication Year :
- 2023
-
Abstract
- The Feline Leukemia Virus Subgroup C Receptor 1a (FLVCR1a) is a transmembrane heme exporter essential for embryonic vascular development. However, the exact role of FLVCR1a during blood vessel development remains largely undefined. Here, we show that FLVCR1a is highly expressed in angiogenic endothelial cells (ECs) compared to quiescent ECs. Consistently, ECs lacking FLVCR1a give rise to structurally and functionally abnormal vascular networks in multiple models of developmental and pathologic angiogenesis. Firstly, zebrafish embryos without FLVCR1a displayed defective intersegmental vessels formation. Furthermore, endothelial-specific Flvcr1a targeting in mice led to a reduced radial expansion of the retinal vasculature associated to decreased EC proliferation. Moreover, Flvcr1a null retinas showed defective vascular organization and loose attachment of pericytes. Finally, adult neo-angiogenesis is severely affected in murine models of tumor angiogenesis. Tumor blood vessels lacking Flvcr1a were disorganized and dysfunctional. Collectively, our results demonstrate the critical role of FLVCR1a as a regulator of developmental and pathological angiogenesis identifying FLVCR1a as a potential therapeutic target in human diseases characterized by aberrant neovascularization.<br /> (© 2023. The Author(s).)
- Subjects :
- Adult
Animals
Humans
Mice
Neoplasms blood supply
Zebrafish
Zebrafish Proteins genetics
Zebrafish Proteins metabolism
Endothelial Cells physiology
Neovascularization, Pathologic genetics
Neovascularization, Physiologic genetics
Receptors, Virus genetics
Receptors, Virus metabolism
Membrane Transport Proteins genetics
Membrane Transport Proteins metabolism
Subjects
Details
- Language :
- English
- ISSN :
- 1573-7209
- Volume :
- 26
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- Angiogenesis
- Publication Type :
- Academic Journal
- Accession number :
- 36631598
- Full Text :
- https://doi.org/10.1007/s10456-023-09865-w