Derivatives were characterized for serum stability, binding affinity on PC-3 human prostate cancer cells, biodistribution in tumor-bearing mice, and gamma camera imaging at 1, 6, and 24 h after injection.
An investigation of the genetic polymorphism, which is largely responsible for serum mannan- binding lectin levels, was done by polymerase chain reaction methods with DNA from a subset of the patients and control subjects.
In this method, the dissociation constant for serum protein binding may be determined from analysis of the shift in apparent IC50 (concentration at which 50% inhibition of activity is observed) caused by the presence of varying concentrations of serum (or individual serum proteins) in biochemical activity assays.
Additionally, a number of pharmacokinetic mechanisms can lead to drug drug interaction to which elderly individuals may be more susceptible, for example, competition for serum protein binding sites or for metabolic or renal elimination pathways (Seymour and Routledge 1998).
They may also compete for serum hormone-binding proteins or induce metabolic pathways that degrade the endogenous hormone (Duan et al. 1999; Kester et al. 2000; Masuyama et al. 2000).
In all C-type CRD glycan complexes examined so far, the presence of the principal Ca2+ results in ligation of a monosaccharide through two vicinal hydroxyl groups as originally seen for serum mannose-binding protein.
This was shown by designing a novel strategy for quantitation of serum antibodies binding selectively to single viral cross-reactive conformational epitopes.
The Codex Alimentarius Commission guidance document (2003) calls for testing of serum IgE binding to the introduced protein if the gene was from an allergenic source, or the sequence of the transferred protein has >35% identity in any segment of 80 or more amino acids to a known allergen or shares significant short amino acid identities.
Similarly to what we observed for β2GPI in serum, the binding of purified β2GPI to cardiolipin in the presence of anti-β2GPI antibodies was inhibited more strongly by the dimeric inhibitor A1-A1 than by A1.
Serum albumin was included in our analysis as a possible surrogate for T4 serum protein binding.
The CAP test is a highly automated, convenient and very sensitive method (sub ng/ml) for detecting serum IgE binding to allergens (3).
