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Patents (1436 Stem Cell Patents)

Methods of recruiting fibroblasts by administering G-CSF

Patent Number: 7,531,510

Date of First Priority Issue: Monday October 27th, 2003
Date Issued: Tuesday May 12th, 2009
Assignee: Chugai Seiyaku Kabushiki Kaisha (Tokyo, JP); Keio University (Tokyo, JP)
Inventors: Fukuda; Keiichi (Shinjuk-ku, JP), Fujita; Jun (Shinjuku-ku, JP)

From Class: Use

Recruitment of various progenitor cells into injured tissue is a well known phenomena.  For example, after infarct, mobilization of bone marrow stem cells into the injured myocardium has been reported.  The current patent uses G-CSF, a cytokine that stimulates hematopoiesis and causes mobilization of stem cells, to chemoattract fibroblasts to injured myocardium.  It is known that fibroblasts secrete numerous growth factors, which is one of the reasons why they are used as feeder cells for embryonic stem cells.  In fact, an interesting publication reported that fibroblasts also have antiinflammatory/immune suppressive activities similar to mesenchymal stem cells.  Ironically, the patent covering this, #7,491,388, is owned by Osiris, the company that is using mesenchymal stem cells in Phase III clinical trials for graft versus host disease.

The one independent claim of the current patent is:

"A method for recruiting fibroblast into a heart in need thereof, which comprises administering granulocyte colony-stimulating factor (G-CSF) in an amount sufficient by itself to recruit fibroblast into said heart"

Dependent claims include specific cardiac conditions, formulations of G-CSF and concentrations of G-CSF.

View this patent on the USPTO website.

Added to StemCellPatents.com on Tuesday May 12th, 2009

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1 Comment | Add Comment

sheriffdon said...

Created 2009-05-12 10:01:10 EST
Can you and WILL you rebuild my injured spinal disc?
- 1 -

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