IP Library Granted Patent US 12,083,162
Granted Patent B2
US 12,083,162 · App. 17/208,228 · Granted Sep 10, 2024

Universal nanosponge for treating respiratory viral infection

Inventors: Liangfang Zhang (San Diego, CA); Weiwei Gao (La Jolla, CA); Ronnie H. Fang (San Diego, CA)
Assignee: The Regents of the University of California
A61K38/1796A61K9/127A61K47/6901
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Quick Facts
Patent No.
US 12,083,162
App. No.
17/208,228
Granted
Sep 10, 2024
Kind
B2
Abstract

A nanoparticle comprising an outer surface comprising a plasma membrane derived from a cell that can be infected with a respiratory virus, including a human lung epithelial cell expressing ACE-2 receptor. Methods of manufacture and use for preventing or treating viral infections, such as coronavirus infection in a subject in need are disclosed.

Claims (22)

1. A nanoparticle comprising an outer surface comprising a plasma membrane derived from a human lung epithelial cell or macrophage that can be infected with a respiratory virus.

2. The nanoparticle of claim 1 , further comprising an inner core comprising a non-cellular material.

3. The nanoparticle of claim 1 , wherein the plasma membrane is derived from the human lung epithelial cell.

4. The nanoparticle of claim 1 , wherein the plasma membrane comprises angiotensin-converting enzyme 2 (ACE-2) receptors.

5. The nanoparticle of claim 1 , wherein the nanoparticle further comprises a releasable cargo.

6. The nanoparticle of claim 5 , wherein the releasable cargo is a therapeutic agent, a prophylactic agent, a diagnostic or marker agent, a prognostic agent, or a combination thereof.

7. The nanoparticle of claim 1 , wherein the respiratory virus is a coronavirus.

8. The nanoparticle of claim 7 , wherein the coronavirus is SARS-CoV-2.

9. A medicament delivery system, which comprises an effective amount of the nanoparticle of claim 1 .

10. A pharmaceutical composition comprising an effective amount of the nanoparticle of claim 1 and a pharmaceutically acceptable carrier or excipient.

11. A method for treating a disease or condition in a subject in need thereof comprising administering to said subject an effective amount of the nanoparticle of claim 1 , wherein the disease or condition is a coronavirus infection.

12. A process for making a nanoparticle comprising:

a) combining an inner core comprising a non-cellular material, and an outer surface comprising a membrane derived from a human lung epithelial cell or macrophage that can be infected with a respiratory virus; and

b) exerting exogenous energy on the combination to form a nanoparticle comprising said inner core and said outer surface.

13. The process for making a nanoparticle of claim 12 , wherein the respiratory virus is a coronavirus.

14. The process for making a nanoparticle of claim 12 , wherein the membrane derived from a cell is genetically modified.

15. A coronavirus-specific composition comprising an effective amount of a nanoparticle comprising an inner core comprising a non-cellular material, and an outer surface comprising an outer membrane vesicle derived from a human lung epithelial cell or macrophage that can be infected with a coronavirus.

16. A method for treating a coronavirus infection in a human subject in need thereof comprising administering to said subject an effective amount of the coronavirus-specific composition of claim 15 .

17. The method of claim 16 , wherein the nanoparticle is administered via an oral, nasal, inhalational, parenteral, intravenous, intraperitoneal, subcutaneous, intramuscular, intradermal, topical, or rectal route.

18. The method of claim 16 , wherein the nanoparticle substantially maintains natural structural integrity or activity of the cellular membrane or the constituents of the cellular membrane.

19. The method of claim 18 , wherein the coronavirus is SARS-CoV-2.

20. The nanoparticle of claim 1 , wherein the plasma membrane does not comprise any portion of the respiratory virus.

Assignments (2)
CONFIRMATORY LICENSE Recorded Jan 29, 2024
From: CALIFORNIA UNIVERSITY OF SAN DIEGO
To: DEFENSE THREAT REDUCTION AGENCY, US DOD
Reel/Frame 066376/0980 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 21, 2021
From: ZHANG, LIANGFANG; GAO, WEIWEI; FANG, RONNIE H.
To: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
Reel/Frame 056597/0550 →
Continuity (2)
Provisional Application 62994069 · Mar 24, 2020
Related Publication 20210299217A1 · Sep 30, 2021