IP Library › Granted Patent US 9,933,436
Granted Patent B2
US 9,933,436 · App. 14/426,404 · Granted Apr 3, 2018

Method of evaluating cellulite and method of evaluating cellulite-effective drug using fibulin-3 and/or sarcoglycan gamma as an indicator

Inventors: Yuzo Yoshida (Yokohama, JP); Kentaro Kajiya (Yokohama, JP); Michael Detmar (Boppelsen, CH)
Assignees: Shiseido Company, Ltd.; ETH Zurich
G01N33/6881C12Q1/6881G01N33/5044C12Q2600/136C12Q2600/158G01N2333/4703G01N2500/10G01N2800/20
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Quick Facts
Patent No.
US 9,933,436
App. No.
14/426,404
Granted
Apr 3, 2018
Kind
B2
Abstract

The present invention relates to a method of evaluating cellulite using fibulin-3 and/or sarcoglycan gamma as an indicator in a harvested skin sample, and a method of evaluating a drug for improving, preventing or treating cellulite using fibulin-3 and/or sarcoglycan gamma as an indicator in cultured cells.

Claims (21)

1. A method of evaluating a drug for improving or treating cellulite, comprising the steps of:

harvesting dermal fibroblast cells from human skin tissue by microdissection and culturing the dermal fibroblast cells;

adding a candidate drug to the cultured dermal fibroblast cells;

determining an expression level of fibulin-3 in the cultured dermal fibroblast cells after adding the candidate drug by quantitative PCR;

comparing a control expression level of fibulin-3 with the determined expression level of fibulin-3 after adding the candidate drug; and

determining that the candidate drug has a cellulite-suppressing activity when the determined expression level of fibulin-3 is enhanced compared to the control expression level of fibulin-3.

2. The method according to claim 1 , wherein the determination that the candidate drug has a cellulite-suppressing activity requires that the determined expression of fibulin-3 is enhanced by 20% or more compared to the control expression level of fibulin-3.

3. The method of claim 2 , wherein the enhancement is 35% or more.

4. The method of claim 2 , wherein the enhancement is 50% or more.

5. The method of claim 1 , wherein the quantitative PCR uses a primer selected from the group consisting of SEQ ID NOs: 5 and 6.

6. A method for screening a drug which has an activity for improving or treating cellulite, the method comprising:

extracting dermal fibroblast cells from human skin tissue by microdissection and culturing the dermal fibroblast cells;

providing a test sample of the cultured dermal fibroblast cells and a control sample;

adding a candidate drug to the test sample of cultured dermal fibroblast cells;

determining an expression level of fibulin-3 in each of a) the test sample after adding the candidate drug and b) the control sample by quantitative PCR;

comparing the expression level of fibulin-3 determined in the control sample with the expression level of fibulin-3 determined in the test sample; and

determining that the candidate drug has an activity for improving or treating cellulite when the expression level of fibulin-3 is increased in the test sample compared to the expression level of fibulin-3 in the control sample.

7. The method according to claim 6 , wherein the determination that the candidate drug has an activity for improving or treating cellulite requires that the expression level of fibulin-3 in the test sample is enhanced by 20% or more compared to the expression level of fibulin-3 in the control sample.

8. The method of claim 7 , wherein the enhancement is 35% or more.

9. The method of claim 7 , wherein the enhancement is 50% or more.

10. The method of claim 6 , wherein the quantitative PCR uses a primer selected from the group consisting of SEQ ID NOs: 5 and 6.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 6, 2015
From: YOSHIDA, YUZO; KAJIYA, KENTARO; DETMAR, MICHAEL
To: SHISEIDO COMPANY, LTD.; ETH ZURICH
Reel/Frame 035099/0117 →
Continuity (1)
Related Publication 20150301064A1 · Oct 22, 2015