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  • Title: Correlation between immunodifferentiation and histodifferentiation in presumptive lens ectoderm of the chick in vitro.
    Author: Rahmani TM.
    Journal: Acta Anat (Basel); 1984; 119(4):203-9. PubMed ID: 6380192.
    Abstract:
    The ability of stage-4-9 chick presumptive lens ectoderm to undergo nervous tissue or lens differentiation was studied in vitro. The tissue was cultured alone or co-cultured with alcohol-killed primitive node or optic cup as inducer. Immunofluorescence was studied on paraffin-wax preparations, which were then studied histologically. An attempt was made to correlate immunological and histological differentiation. The presumptive lens ectoderm differentiated both nervous tissue and lens structures in all stages, regardless of the presence or absence of an inducer. The outcome, however, was improved when an inducer was included. The inducers were not qualitatively specific. The stage-4 ectoderm proved to be more apt than older stages to differentiate nervous tissue and form neural tube-like structures. In the former stage, lens differentiation occurred with less readiness. Older stages differentiated lens structures readily and also showed immunological signs of nervous tissue differentiation. No indication of histological differentiation, however, was apparent and no neural tube-like structures formed.
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