IP Library Granted Patent US 12,201,643
Granted Patent B2
US 12,201,643 · App. 17/965,908 · Granted Jan 21, 2025

Mechanochemical dynamic for focal cancer treatment

Inventors: King C. Li (Urbana, IL); Gun Kim (Urbana, IL); Qiong Wu (Urbana, IL); Jeffrey S. Moore (Savoy, IL); Yun-Sheng Chen (Champaign, IL)
Assignee: The Board of Trustees of the University of Illinois
A61K31/655A61K9/06A61K31/10A61K31/327A61K47/10A61K47/34A61P35/00
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Quick Facts
Patent No.
US 12,201,643
App. No.
17/965,908
Granted
Jan 21, 2025
Kind
B2
Abstract

Provided herein are compositions and methods for mechanochemical dynamic therapy.

Claims (27)

1. A method of generating reactive oxygen species comprising contacting a composition comprising one or more azo-mechanophores covalently linked to a hydrogel matrix or biodegradable elastomer matrix wherein the one or more azo-mechanophores are present in the hydrogel matrix or biodegradable elastomer matrix at about 3.0 wt % to about 15 wt % with high intensity focused ultrasound (HIFU).

2. A method of killing cells, tissue, or tumors comprising delivering a composition comprising one or more azo-mechanophores covalently linked to a hydrogel matrix or biodegradable elastomer matrix wherein the one or more azo-mechanophores are present in the hydrogel matrix or biodegradable elastomer matrix at about 3.0 wt % to about 15 wt % to the cells, tissue, or tumors and activating the azo-mechanophores with HIFU.

3. The method of claim 2 , wherein the cells, tissue, or tumors are cancerous and are present in a mammal.

4. The method of claim 2 , wherein the cells, tissue, or tumors are present in vitro.

5. The method of claim 2 , wherein the HIFU penetrates into the cells, tissue, or tumors to a depth of more than 1 cm.

6. The method of claim 2 , wherein the HIFU delivers continuous wave ultrasound in a pulse, wherein the pulse can be delivered once, twice, or by repeated pulsing.

7. The method of claim 3 , further comprising delivering one or more additional cancer therapies to the mammal.

8. A method of killing cells, tissue, or tumors comprising delivering a composition comprising:

(i) one or more azo-mechanophores and a nanocarrier wherein the azo-mechanophores comprise about 3.0 wt % to about 15 wt % of the composition; or

(ii) one or more azo-mechanophores a nanocarrier, and one or more tumor-homing compounds, wherein the azo-mechanophores comprise about 3.0 wt % to about 15 wt % of the composition;

wherein the composition does not comprise a chemotherapeutic agent other than the one or more azo-mechanophores,

to the cells, tissue, or tumors and activating the azo-mechanophores with HIFU.

9. The method of claim 8 , wherein the cells, tissue, or tumors are cancerous and are present in a mammal.

10. The method of claim 8 , wherein the cells, tissue, or tumors are present in vitro.

11. The method of claim 8 , wherein the HIFU penetrates into the cells, tissue, or tumors to a depth of more than 1 cm.

12. The method of claim 8 , wherein the HIFU delivers continuous wave ultrasound in a pulse, wherein the pulse can be delivered once, twice, or by repeated pulsing.

13. The method of claim 3 , further comprising delivering one or more additional cancer therapies to the mammal.

14. The method of claim 1 , wherein the hydrogel matrix or biodegradable elastomer matrix has a diameter or width of about 0.5 μM to about 10 mm.

15. The method of claim 1 , wherein the hydrogel matrix comprises polydimethylsiloxane (PDMS) or polyethylene glycol (PEG).

16. A method of killing cells, tissue, or tumors comprising delivering a composition consisting of:

(i) one or more azo-mechanophores, peroxide-mechanophores, or disulfide-mechanophores and a nanocarrier wherein the azo-mechanophores comprise about 3.0 wt % to about 15 wt % of the composition; or

(ii) one or more azo-mechanophores a nanocarrier, and one or more tumor-homing compounds, wherein the azo-mechanophores comprise about 3.0 wt % to about 15 wt % of the composition;

to the cells, tissue, or tumors and activating the azo-mechanophores with HIFU.

17. The method of claim 16 , wherein the cells, tissue, or tumors are cancerous and are present in a mammal.

18. The method of claim 16 , wherein the azo-mechanophores mechanically generate free radicals when subjected to the HIFU, which are converted to reactive oxygen species.

19. The method of claim 16 , wherein the reactive oxygen species kill the cells, tissue, or tumors via oxidative cytotoxicity, apoptosis, or both.

20. The method of claim 16 , wherein the HIFU penetrates into the cells, tissue, or tumors to a depth of more than 1 cm.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 4, 2022
From: LI, KING C.; KIM, GUN; WU, QIONG; MOORE, JEFFREY S.; CHEN, YUN-SHENG
To: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
Reel/Frame 061659/0545 →
Continuity (2)
Provisional Application 63256239 · Oct 15, 2021
Related Publication 20230119684A1 · Apr 20, 2023
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