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Preparation of single cells from pancreatic islets of adult rat by the use of dispase

Endocrinologia Japonica 24(3): 265-270
Preparation of single cells from pancreatic islets of adult rat by the use of dispase
A high yield of viable single cells was attained from isolated pancreatic islets of adult rat by the sequential treatment with EDTA and Dispase. The percentage of single cells was consistently higher with EDTA-Dispase in comparison with EDTA-trypsin treatment, being 65.8 .+-. 7.9% and 36.0 .+-. 5.4% respectively, when more than 90% of total islet cells were viable. Excellent preservation of free islet cells dissociated with EDTA-Dispase was demonstrated morphologically by light microscopy and EM. The secretory response of dissociated .beta. cells to glucose was stabilized earlier with EDTA-Dispase than with EDTA-trypsin treatment. The amount of insulin released into the medium was proportional to the number of cells inoculated, thus permitting the quantitative analysis of .beta.-cell function in vitro.

Accession: 006173868

PMID: 410634

DOI: 10.1507/endocrj1954.24.265

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