A quantitative in vivo mouse model used to assay inhibitors of tumor-induced angiogenesis

An in vivo model of tumor-induced angiogenesis was used to monitor two known inhibitors of angiogenesis, protamine sulfate and the steroid tetrahydro S. Tumor cells entrapped in alginate beads were injected s.c. into mice. Blood vessel induction was measured by two quantitative methods: measurement...

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Bibliographic Details
Published in:Cancer research (Chicago, Ill.) Ill.), 1991-02, Vol.51 (4), p.1339-1344
Main Authors: ROBERTSON, N. E, DISCAFANI, C. M, DOWNS, E. C, HAILEY, J. A, SARRE, O, RUNKLE, R. L, POPPER, T. L, PLUNKETT, M. L
Format: Article
Language:English
Subjects:
Animals
Antineoplastic agents
Biological and medical sciences
Cortodoxone - analogs & derivatives
Cortodoxone - pharmacology
Disease Models, Animal
Drug Synergism
Female
General aspects
Heparin - pharmacology
Lung Neoplasms - blood supply
Lung Neoplasms - drug therapy
Lung Neoplasms - pathology
Medical sciences
Mice
Mice, Inbred BALB C
Neovascularization, Pathologic
Pharmacology. Drug treatments
Protamines - pharmacology
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Summary:An in vivo model of tumor-induced angiogenesis was used to monitor two known inhibitors of angiogenesis, protamine sulfate and the steroid tetrahydro S. Tumor cells entrapped in alginate beads were injected s.c. into mice. Blood vessel induction was measured by two quantitative methods: measurement of hemoglobin at the alginate pellet site, and pooling of radiolabeled RBC to the alginate pellet site. The two methods gave parallel results. Tetrahydro S with or without heparin inhibited blood vessel growth by 50%, and protamine sulfate inhibited blood vessel growth by 85%. These results were supported by gross morphology and histological analysis of the alginate pellet site.
ISSN:0008-5472
1538-7445