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  • Title: Fixation and immunofluorescent analysis of creatine kinase isozymes in embryonic skeletal muscle.
    Author: Robinson MM.
    Journal: J Histochem Cytochem; 1987 Jul; 35(7):717-22. PubMed ID: 3035007.
    Abstract:
    Pectoral muscles from chicken embryos of various ages were examined with immunofluorescent and radiolabeled probes for the presence of brain-type creatine kinase (B-CK), muscle-specific creatine kinase (M-CK), muscle-specific myosin heavy chain (MHC), and cycling cells. The diffusible creatine kinase isozymes were not detectable by indirect immunofluorescence after standard histological fixation of embryonic muscle. However, a fixation procedure was devised that permitted immunodetection of the creatine kinase isozymes (particularly B-CK) in embryonic tissue from all stages of development studied. B-CK, M-CK, and MHC were all detected in post-mitotic muscle cells, but only B-CK was detected in cycling cells. Correlations between these findings and in vitro observations of a deterministic muscle lineage are discussed.
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