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Human Embryonic-Like Extracellular Matrix Significantly Inhibits Tumor Growth and Cancer Cell Proliferation
Date:6/17/2010

hown the ability of the hECM, when used to coat biopsy needles, to significantly reduce tumor seeding along the needle track (p=0.002) and prevent the development of secondary subcutaneous tumors. This represents a potential nearer-term application of the hECM in oncology.

"Our studies with hECM substantiate various reports which have shown that embryonic matrix proteins can selectively target the growth of cancer cells in vivo," said Emmett Pinney, Histogen's Director of Oncology. "We are excited about demonstrating the efficacy of our embryonic-like ECM proteins in vivo and about the range of potential applications of the hECM, such as a biopsy needle coating, and as a post-resection tissue filler to improve healing and to prevent possible recurrence or metastasis."

The inhibitory affect of the hECM is selective for malignant cells, supporting fibroblast expansion while concurrently inhibiting mesothelioma cells in vitro. Preliminary indications point to the activation of apoptotic enzymes, as seen through caspase upregulation, leading to apoptosis, or programmed cancer cell death.

"Human embryonic-like ECM stimulates proliferation and differentiation in stem cells while killing cancer cells" will be presented by Histogen CEO Dr. Gail Naughton at the ISSCR Annual Meeting, taking place June 16-19, 2010 in San Francisco.

About Histogen
Histogen, launched in 2007, seeks to redefine regenerative medicine by developing a series of high value products that do not contain embryonic stem cells or animal components. Through Histogen's proprietary bioreactors that mimic the embryonic environment, newborn cells are encouraged to naturally produce the vital proteins and growth factors from which the Company has developed its rich product portfolio. Histogen has two product families - a proprietary liquid complex of embryonic-like proteins and growth factors, and a human Extracellular Matrix (ECM) materi
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