title: In vitro differentiation and measurement of B cell progenitor activity in culture.
abstract: As well as other blood cells, B lymphocytes originate from hematopoietic stem cells. However, it is not fully understood how their production is controlled. In the serum-free, stromal-cell-free B cell differentiation culture described here, early steps of the B lineage differentiation process are reproduced under defined conditions. This assay is useful for examining the direct effects of various soluble factors on B cell progenitors because it does not contain stromal cells or unknown factors. Additionally, this assay yields sufficient cloning to measure B cell progenitors from single cell cultures. Stromal cell coculture assays are also described that cover a wider category of precursors such as human B cell progenitors.
authors.affiliation: Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, USA.
authors.forename: Taku
authors.initials: T
authors.lastname: Kouro
authors.forename: Takafumi
authors.initials: T
authors.lastname: Yokota
authors.forename: Robert
authors.initials: R
authors.lastname: Welner
authors.forename: Paul W
authors.initials: PW
authors.lastname: Kincade
mesh_terms: D000818:Animals; D001402:B-Lymphocytes / Q000166:cytology*; D002454:Cell Differentiation; D002478:Cells, Cultured; D019411:Clinical Laboratory Techniques; D051379:Mice; D013234:Stem Cells / Q000166:cytology*