The present invention relates to a method of modulating an immune response to a T-cell or thymus independent antigen in a host (e.g., mammalian, including human), comprising administering to the host an effective amount of interleukin-12 (IL-12) and the T-cell independent antigen. In one embodiment, the present invention relates to a method of inducing an immune response to a TI antigen in a host (e.g., mammalian, including human), which comprises administering to the host an effective amount of interleukin-12 (IL-12) and the TI antigen. In another embodiment, the present invention relates to a method of enhancing an immune response against a TI antigen in a host, which comprises administering to the host an effective amount of IL-12 and the TI antigen. The methods of the present invention can be used, for example, to induce and or enhance a humoral immune response (IgG2a and/or IgG3 humoral immune response).
Dennis W. Metzger - Sylvania OH Victor H. Van Cleave - Londonderry NH
Assignee:
Genetics Institute - Cambridge MA Medical College of Ohio - Toledo OH
International Classification:
A61K 3820 A61K 4505
US Classification:
424 852
Abstract:
The invention relates to a method of suppressing B1 cell activity in a host (e. g. , mammalian, including human) comprising administering to the host an effective amount of IL-12 that significantly suppresses or inhibits B1 cell activity. In addition, the invention relates to a method of treating a B1 cell disorder in a host, comprising administering to the host an effective therapeutic amount of IL-12. The invention further encompasses a method of screening for substances (e. g. , proteins, peptides, small molecules) which enhance or suppress the inhibition of B1 cell activity by IL-12. The invention also relates to a substance identified by the methods of screening for a substance which enhances or suppresses IL-12 inhibition of B1 cell activity.
Il-12 Enhancement Of Immune Responses To T-Independent Antigens
Dennis W. Metzger - Sylvania OH Renee M. Buchanan - Toledo OH
Assignee:
The Medical College of Ohio - Toledo OH
International Classification:
A61K 3820
US Classification:
424 852
Abstract:
The present invention relates to a method of modulating an immune response to a T-cell or thymus independent antigen in a host (e. g. , mammalian, including human), comprising administering to the host an effective amount of interleukin-12 (IL-12) and the T-cell independent antigen. In one embodiment, the present invention relates to a method of inducing an immune response to a TI antigen in a host (e. g. , mammalian, including human), which comprises administering to the host an effective amount of interleukin-12 (IL-12) and the TI antigen. In another embodiment, the present invention relates to a method of enhancing an immune response against a TI antigen in a host, which comprises administering to the host an effective amount of IL-12 and the TI antigen. The methods of the present invention can be used, for example, to induce and or enhance a humoral immune response (IgG2a and/or IgG3 humoral immune response).
Dennis W. Metzger - Sylvania OH Bernard P. Arulanandam - Toledo OH
Assignee:
The Medical College of Ohio - Toledo OH
International Classification:
A61K 4505 A61K 3900
US Classification:
424 852
Abstract:
The present invention relates to a method of inducing a Th1-like response against a pathogen in a neonatal host, which comprises administering to the neonatal host an effective amount of IL-12 and an antigen of the pathogen. Also encompassed by the present invention is a method of overcoming suppression of interferon-. gamma. (IFN-. gamma. ) expression in a neonatal host due to exposure of the neonatal host to a pathogen or an antigen, which comprises administering to the neonatal host an effective amount of IL-12 and the antigen. The present invention also relates to a method of enhancing the cytokine expression against or in response to a pathogen in a neonatal host, which comprises administering to the neonatal host an effective amount of IL-12 and an antigen of the pathogen.