Method and composition of inducing hair follicle neogenesis

Patent metadata

Field	Value
Publication number	US-9737570-B2
Application number	US-201514657582-A
Country	US
Kind code	B2
Filing date	Mar 13, 2015
Priority date	Nov 7, 2014
Publication date	Aug 22, 2017
Grant date	Aug 22, 2017

Abstract

The present invention provides a method of inducing hair follicle neogenesis in the skin of a subject in need by transplanting the mixture of the skin extract or the composition with epidermal cells or fibroblasts into the subject. The skin extract of the present invention is obtained by mincing and mixing a skin tissue with phosphate buffer solution, thawing the skin tissue after freeze. The composition of the present invention includes at least lumican, galectin-1 and apolipoprotein A-I.

First claim

What is claimed is:

1. A method of inducing hair follicle neogenesis in the skin of a subject in need thereof, comprising the steps of:
a. providing a skin extract, wherein the skin extract is obtained from mincing and mixing a skin tissue derived from the subject with phosphate buffer solution (PBS) to form a skin tissue solution, thawing the skin tissue solution after overnight freeze;
b. mixing the skin extract with a cell to form a mixture, wherein the cell is a epithelial cell or a fibroblast derived from the subject; and
c. transplanting the mixture into the subject.

2. The method according to claim 1 , wherein the ratio of the skin tissue and PBS is 1 mg of the skin tissue: 400 μL to 500 μL of PBS.

3. The method according to claim 1 , wherein the skin extract freezes at −70° C. to −120° C.

4. The method according to claim 1 , wherein the skin extract freezes at least over 8 hours.

5. The method according to claim 1 , wherein the density of the mixture of step b is 1.0×10 4 to 2.0×10 4 cells per microliter (μL) of the skin extract.

6. The method according to claim 1 , wherein the skin extract comprises galectin-1, lumican, apolipoprotein A-I, gelsolin, fibronectin and fibrinogen.

7. The method according to claim 1 , wherein the skin extract comprises galectin-1, lumican and apolipoprotein A-I.

8. The method according to claim 1 , wherein the transplanting step is to inject the mixture to a wound of the subject.

9. The method according to claim 1 , wherein the step b further processes a collagen treatment to form a collagen gel.

10. The method according to claim 9 , wherein the transplanting step is to cover the collagen gel to a wound of the subject.

Assignees

• Univ Nat Taiwan
• Academia Sinica

Inventors

• Lin Sung-Jan
• Fan Mai-Yi
• Chen Yu-Ju
• Tsai Chia-Feng

Classifications

• A61K8/00

  Cosmetics or similar toiletry preparations · CPC title

• A61P17/14

  for baldness or alopecia · CPC title

• A61K38/1709

  from mammals · CPC title

• A61K35/33

  Fibroblasts · CPC title

• A61K38/1732

  Lectins · CPC title