Purification and identification of an IgE suppressor from strawberry in an in vitro immunization system
2012
We purified and identified an IgE suppressor from the strawberry ‘Toyonoka’, based on the decrease of IgE production in in vitro immunization (IVI). Gel filtration experiment indicated that fractions in a 15–48 kDa range and 98% identical nucleotides and >99% identical amino acids, respectively. The purified strawberry GAPDH suppressed total IgE production in IVI in a dose-dependent manner. From these results, we identified GAPDH as IgE suppressor in the strawberry. Our study may be applicable to the development of new methods to relieve allergic conditions using GAPDH and the screening of other functional factors for human health.
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