IP Library Granted Patent US 8,389,582
Granted Patent B2
US 8,389,582 · App. 13/095,639 · Granted Mar 5, 2013

Composition for solubilizing tissue comprising 3-(decyl dimethyl ammonio) propane sulfonate and tetraethylene glycol dodecyl ether

Inventors: Samir Mitragotri (Santa Barbara, CA); Sumit Paliwal (Goleta, CA); Makoto Ogura (Ryugasaki, JP); Russell M. Lebovitz (San Diego, CA)
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Quick Facts
Patent No.
US 8,389,582
App. No.
13/095,639
Granted
Mar 5, 2013
Kind
B2
Abstract

Tissue solubilizing compositions are provided. The compositions comprise 3-(decyl dimethyl ammonio) propane sulfonate and polyethylene glycol dodecyl ether, such as tetraethylene glycol dodecyl ether. The compositions may be useful to solubilize tissue, including skin, mucosal membrane, and other tissue. The compositions may be further useful to preserve and recover analytes contained within the solubilized skin, mucosal membrane, and other tissue.

Claims (46)

1. A composition, comprising:

3-(decyl dimethyl ammonio) propane sulfonate; and

tetraethylene glycol dodecyl ether.

2. The composition of claim 1 , wherein the 3-(decyl dimethyl ammonio) propane sulfonate and the tetraethylene glycol dodecyl ether are present in a total concentration of about 0.5% (w/v) in a buffer solution.

3. The composition of claim 1 , wherein the 3-(decyl dimethyl ammonio) propane sulfonate and the tetraethylene glycol dodecyl ether are present in a total concentration of from about 0.01% (w/v) to about 5% (w/v) in a buffer solution.

4. The composition of claim 1 , wherein the 3-(decyl dimethyl ammonio) propane sulfonate and the tetraethylene glycol dodecyl ether are present in a ratio of from about 3:2 to about 2:3.

5. The composition of claim 1 , wherein the composition is exclusive of at least one of polyoxyethylene sorbitans combined with fatty acids, cationic surfactants, sorbitans, and sodium alkyl sulfates.

6. The composition of claim 1 , wherein the composition has a pH more basic than 7.0.

7. The composition of claim 1 , wherein the composition has a pH of between 7.0 and 9.0.

8. A method for solubilizing a region of interest on skin, comprising:

applying energy to the region of interest; and

contacting the region of interest with a composition,

wherein the composition comprises:

3-(decyl dimethyl ammonio) propane sulfonate; and

a polyethylene glycol dodecyl ether.

9. The method of claim 8 , wherein the applying energy comprises applying mechanical energy.

10. The method of claim 8 , wherein the region of interest comprises a precancerous condition selected from one or more of actinic keratosis, leukoplakia, Barretts esophagus, and right-colon pre-cancer plaque, and a surface cancer arising from the precancerous condition.

11. The method of claim 8 , wherein the region of interest comprises at least one of hardened skin and hyperkaratanized skin.

12. The method of claim 8 , wherein the region of interest comprises at least one of necrotic eschar and fibrinous slough.

13. The method of claim 8 , wherein the region of interest comprises at least one of age spots, skin tags, seborrheic keratosis, scar tissues, xanthomas, non-cancerous hyperproliferative tissue, surface bumps, and scaly patches.

14. The method of claim 8 , 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.

15. The method of claim 14 , wherein the therapeutic composition comprises 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.

16. The method of claim 14 , wherein the cosmetic composition comprises 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.

17. The method of claim 8 , wherein the polyethylene glycol dodecyl ether comprises tetraethylene glycol dodecyl ether.

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

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

contacting the region of interest with a tissue solubilizing composition, thereby solubilizing at least some of the region of interest; and

collecting the at least one analyte from the solubilized region of interest,

wherein the composition comprises:

3-(decyl dimethyl ammonio) propane sulfonate; and

a polyethylene glycol dodecyl ether.

19. The method of claim 18 , wherein the applying energy comprises applying mechanical energy.

20. The method of claim 18 , wherein the analyte comprises a protein.

21. The method of claim 18 , wherein the analyte comprises a cancer biomarker.

22. The method of claim 18 , wherein the analyte comprises an antibody.

23. The method of claim 18 , wherein the analyte comprises a peptide.

24. The method of claim 18 , wherein the analyte comprises a lipid.

25. The method of claim 18 , wherein the analyte comprises a nucleic acid.

26. The method of claim 18 , wherein the analyte comprises a small molecule.

27. The method of claim 18 , wherein the analyte comprises a microbe.

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

29. The method of claim 18 , wherein the analyte comprises an environmental contaminant.

30. The method of claim 18 , wherein the analyte comprises a drug.

31. The method of claim 18 , wherein the polyethylene glycol dodecyl ether comprises tetraethylene glycol dodecyl ether.

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 032665/0554 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 3, 2013
From: MITRAGOTRI, SAMIR; OGURA, MAKOTO; PALIWAL, SUMIT
To: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
Reel/Frame 030347/0439 →
Continuity (6)
Continuation In Part 12664994
Continuation In Part 13095639
Continuation In Part 13126105
Provisional Application 60963773 · Aug 6, 2007
Provisional Application 61152585 · Feb 13, 2009
Related Publication 20120004592A1 · Jan 5, 2012