Agonist antibodies against the flk2/flt3 receptor and uses there

Chemistry: molecular biology and microbiology – Animal cell – per se ; composition thereof; process of... – Animal cell – per se – expressing immunoglobulin – antibody – or...

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5303873, 53038822, 5303891, 530351, 536 2353, 435 7021, 4351722, 4353201, 435328, 424 851, 424 852, 424 855, C12N 520, C07K 1628, C07H 1512

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056353880

ABSTRACT:
Agonist antibodies are disclosed which bind to the extracellular domain of the flk2/flt3 receptor and thereby activate the intracellular kinase domain thereof. The labeled antibodies are useful as diagnostics for detecting the presence of the flk2/flt3 receptor in primitive hematopoietic cells for example. The antibodies are able to cause primitive hematopoietic cells to proliferate and/or differentiate and thereby enhance repopulation of mature blood cell lineages in a mammal which has undergone chemo- or radiation therapy or bone marrow transplantation. The antibodies are further useful for treating mammals which have suffered a decrease in blood cells as a consequence of disease or a hemorrhage, for example.

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