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  • Title: [Clinical application of supersensitive and multiplex assay, MUSTag technology].
    Author: Shibasaki F, Morizane Y, Ishikawa Y, Makisaka N, Komata Y, Chen L, Uchida K.
    Journal: Rinsho Byori; 2008 Sep; 56(9):802-10. PubMed ID: 18975559.
    Abstract:
    Recently, various sets of protein biomarkers have been discovered in important diseases such as cancers, brain stroke, heart attack, diabetes, and so on. Many of these biomarkers are expected to be extremely valuable as targets for clinical diagnosis and drug development; however, the clinical validation is difficult and time-consuming by individual assays or due to very low concentration in an early stage of disease. For the super-sensitive and multiplex detection of target biomarkers, we have developed MUSTag (Multiple Simultaneous Tag) assay technology with innovative modification of the immuno-PCR method. In MUSTag technology, specific antibodies against several important biomarkers were linked to 100-300bp long oligonucleotides as detection tags. Each different oligo-tag simultaneously detects multiplex protein targets with extremely high sensitivity(more than 10 fg (10(-15) g)/ml) in a dose-dependent manner by qRT-PCR-based (maximum 3 plexes) or capillary electrophoretic amplification (over 30 plexes). Here we report our recent results of multiple cytokine assay or disease-specific biomarker assay using MUSTag technology, and further, clinical results from patients with cancers, ischemic brain or heart attack, who need prompt and predictive diagnosis for adequate treatment.
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