SAN DIEGO, June 19, 2012 /PRNewswire/ -- Aethlon Medical, Inc. (OTCBB: AEMD), the pioneer in developing selective therapeutic filtration devices to address infectious disease, cancer and other life-threatening conditions, announced today that the U.S. Patent and Trademark Office (USPTO) has given the Company a Notice of Allowance for U.S. Patent Application No. 12/282152 entitled "Extracorporeal Removal of Microvesicular Particles." The patent grants Aethlon the exclusive right to remove immune suppressive microvesicular particles, which include but are not limited to exosomes, from the circulation of treated patients. The patent describes a method to bind and capture immune suppressive microvesicular particles from blood with a medical filtration device containing single or multiple affinity agents, which can include antibodies, aptamers, beads, lectins, proteins, or other compounds that adhere to microvesicles. The USPTO further notified the Company that it has calculated a Patent Term Adjustment of 452 days on the Notice of Allowance.
"This patent allowance provides a cornerstone that reinforces our opportunity to establish a dominant market position in the therapeutic targeting of immunosuppressive exosomes," stated Jim Joyce, Chairman and CEO at Aethlon Medical. The Aethlon Hemopurifier®, which is a first-in-class device being advanced in Hepatitis C care, has demonstrated the ability to capture a broad-spectrum of immune suppressive exosomes underlying cancer. A therapy that could inhibit exosome proliferation would fulfill a major unmet medical need as corresponding drug therapies have yet to emerge.
In cancer, exosomes have recently emerged to become a vital therapeutic target as they play an instrumental role in promoting tumor progression by inducing programmed cell death of anti-cancer immune cells. As a result of inhibiting the immune response, exosomes increase the proliferation and spread of many forms of cancer. The particles also seed the spread of tumor metastasis, promote angiogenesis (essential for tumor survival and growth), increase tumor aggressiveness, and contribute to anti-cancer drug resistance.
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