The glutathione can then be degraded by the cytoplasmic ChaC family of -glutamylamine cyclotransferases [ChaC1 (ChaC glutathione specific gamma-glutamylcyclotransferase 1) and ChaC2 (ChaC glutathione specific gamma-glutamylcyclotransferase 2)] generating 5-oxoproline and the dipeptide Cys-Gly
Underlying health conditions such as hypothyroidism or the use of weight-promoting medicines may also contribute
Probenecid can also cause a rash but seems less likely than allopurinol to cause a very severe hypersensitivity reaction
Other groups have reported increased efficacy with 5FU and metformin in models of acquired resistance 53,54,55,56 , in spheroid culture 53 or xenograft/PDX models 57,58,59 , but the potential of combined 5FUCI inhibitor co-treatment in a chemo-naive, immune-competent setting requires further investigation
Overview of SNAC as a Drug-Delivery Technology Various compounds, including surfactants, bile salts, bacterial toxins, chelating agents, and medium-chain fatty acids, have proven effective as absorption enhancers in vitro and in vivo (7)