Radiation and nanoparticles for enhancement of drug delivery in solid tumors
First Claim
1. A method of enhancing anti-cancer drug delivery in a solid tumor, comprising the steps of:
- administering at least one anti-cancer drug to said tumor;
injecting nanoparticles or microparticles to said tumor intravenously; and
irradiating said tumor with radiation.
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Abstract
The present invention discloses a method/system utilizing interaction of electromagnetic pulses or ultrasonic radiation with nano- and microparticles for enhancement of drug delivery in solid tumors. The particles can be attached to antibodies directed against antigens in tumor vasculature and selectively delivered to tumor blood vessel walls. Cavitation induced by ultrasonic waves or local heating of the particles by pulsed electromagnetic radiation results in perforation of tumor blood vessels, microconvection in the interstitium, and perforation of cancer cell membrane, and therefore, provides enhanced delivery of macromolecular therapeutic agents from blood into cancer cells with minimal thermal and mechanical damage to normal tissues.
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Citations
15 Claims
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1. A method of enhancing anti-cancer drug delivery in a solid tumor, comprising the steps of:
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administering at least one anti-cancer drug to said tumor; injecting nanoparticles or microparticles to said tumor intravenously; and irradiating said tumor with radiation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An anti-cancer drug delivery system, comprising:
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a source of radiation; an electronic system for monitoring of said radiation; a means for delivery of said radiation to said tumor; nanoparticles or microparticles absorbing said radiation; an injection means for administration of said anti-cancer drug and said nanoparticles or microparticles in blood.
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15. A method of treating a solid tumor, comprising the steps of:
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injecting nano- or microparticles to said tumor intravenously; and irradiating said tumor with radiation.
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Specification