Core B provides in vitro and in vivo assays for determining the biochemical functionality of BMD-like dystrophin proteins. These internally deleted semi-functional proteins are generated by the other research projects and cores, and include studies of endogenous proteins in human cells from patients with wellcharacterized in-frame mutations (Projects 1, 3), murine constructs of specific deletions delivered to cells or mice in vh/o (Project 1), and in-frame deletions accomplished by exon-skipping therapeutics (Project 2).
The specific aims of Core B include well-established assays developed by the five collaborating laboratories within the Research Center for Genetic Medicine at Children's National Medical Center. An innovative assay offered by Core B is our recently published live-animal imaging method for assessment of muscular dystrophy activity using a near-infrared cathepsin B caged substrate (Baudy et al 2010). An additional innovative assay is quantitative secretome measures of membrane instability using MS/MS profiling. Resource sharing will include publication and public access of standard operating procedures for each assay, as we have done collaboratively with the EU Treat-NMD network for murine pre-clinical endpoints (www.treat-nmd.eu/research/preclinical/SOPs/) (Nagaraju 2009;Spurney et al. 2009). We also offer in vivo assays as a core function for drug screening to external laboratories, and in vitro assays to external laboratories on a collaborative basis.
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|Heier, Christopher R; Damsker, Jesse M; Yu, Qing et al. (2013) VBP15, a novel anti-inflammatory and membrane-stabilizer, improves muscular dystrophy without side effects. EMBO Mol Med 5:1569-85|
|Rayavarapu, Sree; Coley, William; Cakir, Erdinc et al. (2013) Identification of disease specific pathways using in vivo SILAC proteomics in dystrophin deficient mdx mouse. Mol Cell Proteomics 12:1061-73|
|Uaesoontrachoon, Kitipong; Cha, Hee-Jae; Ampong, Beryl et al. (2013) The effects of MyD88 deficiency on disease phenotype in dysferlin-deficient A/J mice: role of endogenous TLR ligands. J Pathol 231:199-209|
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