Tolerogenic fusion proteins of immunoglobulins and methods for i

Drug – bio-affecting and body treating compositions – Whole live micro-organism – cell – or virus containing – Genetically modified micro-organism – cell – or virus

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4353201, 4351723, 435325, 435326, 435328, 435 9131, 5303873, 514 44, 536 221, 536 231, 4241301, 4241841, 4241331, 4241851, A01N 6300, A61K 3935, C12N 510

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058173080

ABSTRACT:
The invention provides methods and compositions for inducing and maintaining tolerance to epitopes or antigens containing the epitopes. The compositions include expression cassettes and vectors including DNA sequences coding for a fusion immunoglobulin operably linked to transcriptional and translational control regions functional in a hemopoietic or lymphoid cell. The fusion immunoglobulin includes at least one heterologous tolerogenic epitope at the N-terminus variable region of the immunoglobulin. Cells stably transformed with the expression vector are formed and used to produce fusion immunoglobulin. The invention also provides methods for screening for novel tolerogenic epitopes and for inducing and maintaining tolerance. The methods of the invention are useful in the diagnosis and treatment of autoimmune or allergic immune responses.

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