Crossref journal-article
Proceedings of the National Academy of Sciences
Proceedings of the National Academy of Sciences (341)
Abstract

Nitric oxide (NO) plays a critical role in vascular endothelial growth factor (VEGF)-induced angiogenesis and vascular hyperpermeability. However, the relative contribution of different NO synthase (NOS) isoforms to these processes is not known. Here, we evaluated the relative contributions of endothelial and inducible NOS (eNOS and iNOS, respectively) to angiogenesis and permeability of VEGF-induced angiogenic vessels. The contribution of eNOS was assessed by using an eNOS- deficient mouse, and iNOS contribution was assessed by using a selective inhibitor [ l - N 6 -(1-iminoethyl) lysine, l -NIL] and an iNOS- deficient mouse. Angiogenesis was induced by VEGF in type I collagen gels placed in the mouse cranial window. Angiogenesis, vessel diameter, blood flow rate, and vascular permeability were proportional to NO levels measured with microelectrodes: Wild-type (WT) ≥ WT with l -NIL or iNOS −/− > eNOS −/− ≥ eNOS −/− with l -NIL. The role of NOS in VEGF-induced acute vascular permeability increase in quiescent vessels also was determined by using eNOS- and iNOS- deficient mice. VEGF superfusion significantly increased permeability in both WT and iNOS −/− mice but not in eNOS −/− mice. These findings suggest that eNOS plays a predominant role in VEGF-induced angiogenesis and vascular permeability. Thus, selective modulation of eNOS activity is a promising strategy for altering angiogenesis and vascular permeability in vivo .

Bibliography

Fukumura, D., Gohongi, T., Kadambi, A., Izumi, Y., Ang, J., Yun, C.-O., Buerk, D. G., Huang, P. L., & Jain, R. K. (2001). Predominant role of endothelial nitric oxide synthase in vascular endothelial growth factor-induced angiogenesis and vascular permeability. Proceedings of the National Academy of Sciences, 98(5), 2604–2609.

Authors 9 University of Pennsylvania
  1. Dai Fukumura (first) University of Pennsylvania
  2. Takeshi Gohongi (additional) University of Pennsylvania
  3. Ananth Kadambi (additional) University of Pennsylvania
  4. Yotaro Izumi (additional) University of Pennsylvania
  5. Jennifer Ang (additional) University of Pennsylvania
  6. Chae-Ok Yun (additional) University of Pennsylvania
  7. Donald G. Buerk (additional) University of Pennsylvania
  8. Paul L. Huang (additional) University of Pennsylvania
  9. Rakesh K. Jain (additional) University of Pennsylvania
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Dates
Type When
Created 23 years, 1 month ago (July 26, 2002, 10:45 a.m.)
Deposited 3 years, 4 months ago (April 12, 2022, 12:39 p.m.)
Indexed 1 day, 11 hours ago (Sept. 3, 2025, 7:06 a.m.)
Issued 24 years, 6 months ago (Feb. 27, 2001)
Published 24 years, 6 months ago (Feb. 27, 2001)
Published Online 24 years, 6 months ago (Feb. 27, 2001)
Published Print 24 years, 6 months ago (Feb. 27, 2001)
Funders 0

None

@article{Fukumura_2001, title={Predominant role of endothelial nitric oxide synthase in vascular endothelial growth factor-induced angiogenesis and vascular permeability}, volume={98}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.041359198}, DOI={10.1073/pnas.041359198}, number={5}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Fukumura, Dai and Gohongi, Takeshi and Kadambi, Ananth and Izumi, Yotaro and Ang, Jennifer and Yun, Chae-Ok and Buerk, Donald G. and Huang, Paul L. and Jain, Rakesh K.}, year={2001}, month=feb, pages={2604–2609} }