Preparation method of a hair dermal papilla cell preparation, composition and method for regenerating hair follicles, and animal having regenerated hair follicles
US7718426B2 · kind B2 · utility
1Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2004 |
| Grant date | May 18, 2010 |
| Priority date | — |
| Expiry date | Aug 9, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N2502/1323
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention provides a method for preparing a hair dermal papilla cell preparation comprising preparing a cell suspension by removing epidermal tissue from skin tissue and subjecting the resulting dermal tissue fraction to collagenase treatment, and cyropreserving the cell suspension to kill the follicular epidermal cells. The present invention also provides a composition for regenerating hair follicles comprising hair dermal papilla cell and epidermal cells, wherein the ratio of the number of hair dermal papilla cell to the number of epidermal cells is from 1:10 to 10:1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.