Cancer Therapeutic based on Stimulation of Natural Killer T-cell Anti-tumor Activity
Natural killer T cells (NKT) are a unique lymphocyte population that has T-cell and NK cell functional properties in order to rapidly elicit an immune response. alpha-galactosylceramide (alpha-GalCer) is a potent NKT stimulator and induces of IFN-gamma release to promote immunity against tumors and infectious agents. Humans have natural antibodies against alpha-galactose, which may be one of the reasons why the human clinical trials of alpha-GalCer or KRN7000 were not very successful.
Beta-ManCer is a new class of NKT agonist that induces immune responses alone, through nitric oxide and TNF-alpha-dependent mechanisms, or synergistically with alpha-GalCer to enhance alpha-GalCer''s efficacy. Since beta-ManCer does not have alpha-galactose, which can be neutralized by natural antibodies, patients could be treated with multiple doses without negative side effects associated with the loss of IFN-gamma production. Hence, beta-ManCer is a promising anti-cancer treatment either alone or in combinatorial therapies with alpha-GalCer to selectively induce immune responses.
Potential Commercial Applications: | Competitive Advantages: |
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Development Stage:
Discovery (Lead Identification)
Inventors:
Masaki Terabe (NCI) ➽ more inventions...
Ira Pastan () ➽ more inventions...
Intellectual Property:
U.S. Provisional Application No. 61/313,508
Collaboration Opportunity:
Licensing only
Licensing Contact:
John Hewes, Ph.D.
Email: John.Hewes@nih.gov
Phone: 240-276-5515
OTT Reference No: E-034-2010
Updated: Apr 7, 2020