IP Library Granted Patent US 8,791,062
Granted Patent B2
US 8,791,062 · App. 13/952,525 · Granted Jul 29, 2014

Skin permeating and cell entering (SPACE) peptides and methods of use thereof

Inventors: Tracy Hsu (Newhall, CA); Samir M. Mitragotri (Santa Barbara, CA)
Assignee: The Regents of the University of California
A61K47/48246
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Quick Facts
Patent No.
US 8,791,062
App. No.
13/952,525
Granted
Jul 29, 2014
Kind
B2
Abstract

The present disclosure provides peptides and peptide compositions, which facilitate the delivery of an active agent or an active agent carrier wherein the compositions are capable of penetrating the stratum corneum (SC) and/or the cellular membranes of viable cells.

Claims (18)

1. A method of delivering an active agent to a subject, comprising: administering to the subject a composition comprising a peptide comprising the amino acid sequence selected from the group consisting of CHSALTKHC (SEQ ID NO:8), CKTGSHNQC (SEQ ID NO:9), CMGPSSMLC (SEQ ID NO:10), CTDPNQLQC (SEQ ID NO:11), CSTHFIDTC (SEQ ID NO:12), ACTGSTQHQCG (SEQ ID NO:13), ACHSALTKHCG (SEQ ID NO:14), ACKTGSHNQCG (SEQ ID NO:15), ACMGPSSMLCG (SEQ ID NO:16), ACTDPNQLQCG (SEQ ID NO:17), and ACSTHFIDTCG (SEQ ID NO:18), wherein the peptide is associated with or conjugated to an active agent or an active agent carrier comprising the active agent, and wherein the composition is capable of penetrating the stratum corneum (SC) of the subject or penetrating a cell of the subject.

2. The method of claim 1 , wherein the composition is capable of penetrating the SC of the subject and penetrating the cell of the subject.

3. The method of claim 1 , wherein the administration is topical administration.

4. The method of claim 1 , wherein the peptide is a cyclic peptide comprising a Cys-Cys disulfide bond.

5. The method of claim 1 , wherein the composition is capable of penetrating the cellular membrane of a cell selected from the group consisting of a viable non-human animal cell, a viable human cell, a viable epidermal cell, a viable dermal cell, and a viable immunological cell.

6. The method of claim 1 , wherein the active agent comprises a protein, a nucleic acid, a pharmaceutical compound, a detectable agent, a nanoparticle, or a low molecular weight compound.

7. The method of claim 6 , wherein the active agent comprises a protein and the protein comprises an antibody or a fragment thereof comprising at least one paratope.

8. The method of claim 6 , wherein the active agent comprises a nucleic acid and the nucleic acid is DNA.

9. The method of claim 6 , wherein the active agent comprises a nucleic acid and the nucleic acid is RNA.

10. The method of claim 9 , wherein the RNA is interfering RNA.

11. The method of claim 10 , wherein the interfering RNA is selected from the group consisting of an shRNA, an miRNA, and an siRNA.

12. The method of claim 11 , wherein the interfering RNA is an siRNA and the siRNA is selected from the group consisting of an IL-10 siRNA, a CD86 siRNA, a KRT6a siRNA, a TNFR1 siRNA, and a TACE siRNA.

13. The method of claim 11 , wherein the interfering RNA is siRNA and the siRNA is a mutation-specific siRNA.

14. The method of claim 6 , wherein the active agent comprises a detectable agent and the detectable agent comprises a fluorescent label or a radioactive label.

15. The method of claim 1 , wherein the active agent is an inhibitor of IL-10 biological activity.

16. The method of claim 15 , wherein the active agent is selected from an IL-10 siRNA and antibodies or fragments thereof that bind IL-10.

17. The method of claim 1 , wherein the peptide is conjugated to the active agent carrier comprising the active agent and the active agent carrier is selected from the group consisting of a liposome, a nanoparticle, and a polymeric micelle.

18. The method of claim 1 , wherein the peptide is associated with the active agent or the active agent carrier comprising the active agent via hydrophobic, electrostatic or van der Walls interactions.

Assignments (2)
CONFIRMATORY LICENSE Recorded Oct 10, 2014
From: UNIVERSITY OF CALIFORNIA SANTA BARBARA
To: NATIONAL INSTITUTES OF HEALTH (NIH), U.S. DEPT. OF HEALTH AND HUMAN SERVICES (DHHS), U.S. GOVERNMENT
Reel/Frame 033969/0454 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 10, 2014
From: HSU, TRACY; MITRAGOTRI, SAMIR M.
To: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
Reel/Frame 031938/0678 →
Continuity (5)
Division 13253796 · Oct 5, 2011
Provisional Application 61528036 · Aug 26, 2011
Provisional Application 61527574 · Aug 25, 2011
Provisional Application 61411884 · Nov 9, 2010
Related Publication 20140161871A1 · Jun 12, 2014