Determining the capability of a test compound to affect solid tumor stem cells

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United States of America Patent

PATENT NO 8420885
APP PUB NO 20120027685A1
SERIAL NO

13241701

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Abstract

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A small percentage of cells within an established solid tumor have the properties of stem cells. These solid tumor stem cells give rise both to more tumor stem cells and to the majority of cells in the tumor that have lost the capacity for extensive proliferation and the ability to give rise to new tumors. Thus, solid tumor heterogeneity reflects the presence of tumor cell progeny arising from a solid tumor stem cell. We have developed a xenograft model in which we have been able to establish tumors from primary tumors via injection of tumor cells in the mammary gland of severely immunodeficient mice. These xenograft assay have allowed us to do biological and molecular assays to characterize clonogenic solid tumor stem cells. We have also developed evidence that strongly implicates the Notch pathway, especially Notch 4, as playing a central pathway in carcinogenesis.

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Patent Owner(s)

  • ONCOMED PHARMACEUTICALS, INC.;THE REGENTS OF THE UNIVERSITY OF MICHIGAN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Clarke, Michael F Ann Arbor, US 65 2949
Dylla, Scott J Mountain View, US 66 550
Satyal, Sanjeev San Carlos, US 30 448

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