Mast Cell Culture and Methods to Produce the Culture

摘要

The present invention relates to mast cell cultures that are derived from hematopoietic progenitors and the use thereof. The invention describes a method for generating in-vitro cultures of human mast cells with functional phenotype of connective tissue-type mast cells. By monitoring the levels of chemokines released into the medium, such mast cell cultures can be used as a cell-based assay to assess regulation of mast cell functions and pharmacological activities of tryptase inhibitors.

主权项

1. A method to make a mast cell culture comprising the steps of (a) treating CD34+ progenitor cells under hypoxic condition for 1 week in a medium comprising SCF, IL-6 and IL-3 to generate an initial-stage cell culture; (b) treating the initial-stage cell culture under hypoxic condition for about 0.5-2.5 weeks in a medium comprising SCF, IL-6 and IL-9 to form an intermediate stage cell culture; (c) treating the intermediate-stage cell culture under normoxic condition for 2.5-3.5 weeks in a medium comprising SCF and IL-6 to generate an immature mast cell culture.