Mechanochemical dynamic for focal cancer treatment
Provided herein are compositions and methods for mechanochemical dynamic therapy.
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.