Compositions and methods for growth promotion
AssigneeCytRx Corporation
InventorMannarsamy Balasubramanian
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Abstract
The present invention includes compositions and methods using biologically active nonionic reverse block copolymers. The reverse copolymers have an inner core of polyoxypropylene (POP) that is flanked on either end by polyoxyethylene (POE). The reverse block copolymers have the following formula: ##STR1## wherein "b" represents a number such that the molecular weight of the hydrophobe (C.sub.3 H.sub.6 O).sub.b is between approximately 2,000 and 10,000, and "a" represents a number such that the percentage of hydrophile (C.sub.2 H.sub.4 O).sub.a is between approximately 5% and 30%. The reverse block copolymers stimulate the immune response, can suppress immune responses such as those in autoimmune diseases, promote the growth of animals, and stimulate hormone production.
Claims8
A method for increasing an immune response in a human or animal to an antigen comprising administering to the human or animal the antigen and a nonionic block copolymer having the following formula:
- ##STR10## wherein "b" represents a number such that the molecular weight of the hydrophobe (C.sub.3 H.sub.6 O).sub.b is between approximately 2,000 and 10,000, and "a" represents a number such that the percentage of hydrophile (C.sub.2 H.sub.4 O).sub.a is between approximately 5% and 30%.
A biologically active composition comprising an antigen and a nonionic block copolymer having the following formula:
- ##STR14## wherein "b" represents a number such that the molecular weight of the hydrophobe (C.sub.3 H.sub.6 O).sub.b is between approximately 2,000 and 10,000, and "a" represents a number such that the percentage of hydrophile (C.sub.2 H.sub.4 O).sub.a is between approximately 5% and 30%.
Dependencies are inferred from the claim text.