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Production of soluble transferrin receptor by K562 erythroleukaemia cells
Author(s) -
Baynes Roy D.,
Shih Yuan J.,
Cook James D.
Publication year - 1991
Publication title -
british journal of haematology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.907
H-Index - 186
eISSN - 1365-2141
pISSN - 0007-1048
DOI - 10.1111/j.1365-2141.1991.tb04463.x
Subject(s) - transferrin receptor , transferrin , receptor , ferritin , soluble transferrin receptor , incubation , biology , k562 cells , monoclonal antibody , biochemistry , microbiology and biotechnology , endocrinology , antibody , chemistry , medicine , iron deficiency , immunology , in vitro , anemia , iron status
Summary. The present study was undertaken to examine the production of soluble transferrin receptor by K562 erythroleukaemia cells under controlled experimental conditions. The concentrations of soluble and cellular transferrin receptor were measured by immunoassay employing monoclonal antibodies. Cellular ferritin was also measured as an index of iron supply. With incubation up to 48 h there was a progressive increase in the concentration of souble transferrin receptor. Manipulating iron supply by adding iron chelators or diferric transferrin to the incubation medium produced marked alterations in cellular receptor and ferritin content. Under all such conditions examined, the relationship between soluble and cellular receptor remained highly constant. These findings support clinical studies of serum receptor suggesting that over a broad spectrum of haematological disorders there is a fixed relationship between serum receptor and tissue receptor mass.