摘要:
The invention relates to a quantitative method for detecting yessotoxins in fish products based on the activation caused by the toxin in cellular phosphodiesterase and therapeutic usefulness of said activation. The cellular target of yessotoxin (YTX) and analogues is the activation of phosphodiesterases (PDEs). The PDEs-YTX union emits a measurable signal. The union can be quantified by means of an affinity biosensor or fluorescence. The biosensor detects bimolecular interactions and makes it possible to determine the presence of YTX due to its interaction with PDEs. Plate fluorescence makes it possible to determine variations in the speed of degradation of fluorescent derivative anthranyloil-AMPc. The speed with which the PDEs degrade this molecule increases in the presence of YTX. The YTX inhibits the immunological activation of rat mastocytese and induces a cytotoxic effect in human hepatocarcinoma cells, which provides two therapeutic utilities of YTXs as anti-allergic and anti-tumoral compound.
摘要:
The present invention relates to a quantitative method for detecting yessotoxins in fishery products based on the activation the toxin produces on cellular phosphodiesterases and the therapeutic use of this activation. The cellular target of yessotoxin (YTX) and its analogs is the activation of phosphodiesterases (PDEs). The PDEs-YTX bond produces a measurable signal. The bond can be quantified by means of an affinity biosensor or by fluorescence. The biosensor detects biomolecular interactions and allows determining the presence of YTX due to its interaction with PDEs. The variations in the degradation rate of the fluorescent derivative anthraniloyl-cAMP are determined by means of plate fluorescence. The rate at which the PDEs degrade this molecule increases in the presence of YTX. YTX inhibits immunological activation of mastocytes in rats and induces a cytotoxic effect in human hepatocarcinoma cells, which implies two therapeutic uses of YTXs as an antiallergic and antitumor compound.