IP Library Granted Patent US 8,642,664
Granted Patent B2
US 8,642,664 · App. 13/473,261 · Granted Feb 4, 2014

Composition for solubilizing tissue and cells comprising N-tetradecyl-N,N-dimethyl-3-ammonio-1-propanesulfonate and polyoxyethylene (10) cetyl ether

Inventors: Samir Mitragotri (Santa Barbara, CA); Russell M. Lebovitz (San Diego, CA); Byeong Hee Hwang (Goleta, CA)
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Quick Facts
Patent No.
US 8,642,664
App. No.
13/473,261
Granted
Feb 4, 2014
Kind
B2
Abstract

Solubilizing compositions are provided. The compositions comprise at least one zwitterionic surfactant and at least one nonionic surfactant. In one embodiment, the compositions may be useful for solubilizing and remodeling and/or removing tissue on or beneath a patient's skin, optionally in conjunction with the application of energy to a region of interest on the skin. In one embodiment, at least one analyte may be collected and analyzed from the solubilized tissue.

Claims (34)

1. A composition, comprising:

N-tetradecyl-N,N-dimethyl-3-ammonio-1-propanesulfonate; and

polyoxyethylene (10) cetyl ether.

2. The composition of claim 1 , wherein the composition has a pH more basic than about 7.0 in a buffer solution.

3. The composition of claim 1 , wherein the composition has a pH of between about 7.0 and about 9.0 in a buffer solution.

4. The composition of claim 1 , further comprising a buffer solution that dissolves the N-tetradecyl-N,N-dimethyl-3-ammonio-1-propanesulfonate and the polyoxyethylene (10) cetyl ether, one or both of the N-tetradecyl-N,N-dimethyl-3-ammonio-1-propanesulfonate and the polyoxyethylene (10) cetyl ether each being in an amount of about 0.25% w/v with respect to the buffer solution.

5. A method for solubilizing and remodeling and/or removing tissue on or beneath a patient's skin, the method comprising:

applying energy to a region of interest on the skin; and

contacting the region with a tissue solubilizing composition, the tissue solubilizing composition comprising:

N-tetradecyl-N,N-dimethyl-3-ammonio-1-propanesulfonate; and

polyoxyethylene (10) cetyl ether.

6. The method of claim 5 , further comprising:

removing at least a portion of the solubilized region of interest to leave an exposed area on the skin; and

applying to the exposed area at least one of a therapeutic composition and a cosmetic composition.

7. The method of claim 6 , wherein the applying comprises applying to the exposed area a therapeutic composition comprising at least one of a DNA-based drug, an RNA-based drug, a protein-based drug, a peptide-based drug, a lipid-based drug, a carbohydrate-based drug, a small molecule drug, a nanoparticle-based drug, and a liposome-encapsulated drug.

8. The method of claim 6 , wherein the applying comprises applying to the exposed area a cosmetic composition comprising at least one of elastin, an elastin-based peptide, collagen, a collegen-based peptide, resveratrol, idebenone, co-enzyme Q10, acetyl hexapeptide-3, glycosaminoglycans, palmitoyl pentapeptide-4, sodium hyaluronate, and combinations thereof.

9. A method for recovering analytes from mucosal membrane, skin, or other tissue, the method comprising:

applying energy to a region of interest on the mucosal membrane, skin, or other tissue containing at least one analyte;

contacting the region with a tissue solubilizing composition, thereby solubilizing at least some of the mucosal membrane, skin, or other tissue containing at least one analyte,

wherein the tissue solubilizing composition comprises:

N-tetradecyl-N,N-dimethyl-3-ammonio-1-propanesulfonate; and

polyoxyethylene (10) cetyl ether; and

collecting the at least one analyte from the solubilized mucosal membrane, skin, and other tissue.

10. The method of claim 9 , wherein the analyte comprises a protein.

11. The method of claim 9 , wherein the analyte comprises a cancer biomarker.

12. The method of claim 9 , wherein the analyte comprises an antibody.

13. The method of claim 9 , wherein the analyte comprises a peptide.

14. The method of claim 9 , wherein the analyte comprises a lipid.

15. The method of claim 9 , wherein the analyte comprises a nucleic acid.

16. The method of claim 9 , wherein the analyte comprises a small molecule.

17. The method of claim 9 , wherein the analyte comprises a microbe.

18. The method of claim 9 , wherein the analyte comprises a warfare agent.

19. The method of claim 9 , wherein the analyte comprises an environmental contaminant.

20. The method of claim 9 , wherein the analyte comprises a drug.

Assignments (3)
CHANGE OF NAME Recorded Jul 6, 2018
From: DX BIOSCIENCES, INC.
To: SKINCENTIAL SCIENCES, INC.
Reel/Frame 046496/0548 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 14, 2014
From: LEBOVITZ, RUSSELL M.
To: DX BIOSCIENCES, INC.
Reel/Frame 032665/0962 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 3, 2013
From: MITRAGOTRI, SAMIR; HWANG, BYEONG HEE
To: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
Reel/Frame 030347/0824 →
Continuity (6)
Continuation In Part 13095639 · Apr 27, 2011
Continuation In Part 12664994
Continuation In Part 13126105
Provisional Application 60963773 · Aug 6, 2007
Provisional Application 61152585 · Feb 13, 2009
Related Publication 20120253238A1 · Oct 4, 2012