Summary
Effects of the enzymes trypsin, papain, bromelains and ficin in bovine dental pulp tissue were studied. Minced or whole pulps were subjected to each enzyme at 17°, 20° and 37°C for set time intervals, after which aliquots of supernatant fluid were removed for cell counts and viability tests. Pooled samples were subsequently cultured as monolayers in Eagle’s MEM plus 10% calf serum. The dissociation characteristics were quite distinct for each enzyme, although quite similar between minced and whole pulp. A parallel histological study was made of the residual pulp tissue. Ficin was found to be the most suitable enzyme for future studies on the growth of isolated pulp cells from various layers of the bovine pulp, due to its even rate of cell removal, and the good initial viability and subsequent growth of the separated cells in monolayer culture. Further studies on ficin may show that it is more suitable for enzymatic separation of tissues generally than the more commonly used trypsin, a major advantage being its use in media containing Ca2+ and Mg2+.
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References
Scott, J. H. and N. B. B. Symons. 1971.Introduction to Dental Anatomy. 6th Ed., E. & S. Livingstone, Edinburgh and London.
Miller, W. A. 1969. Pulp calcification in a taurodont tooth. Br. Dent. J. 126: 456–459.
Marsland, E. A. and D. S. Shovelton. 1970. Repair in the human dental pulp following cavity preparation. Arch. Oral Biol. 15: 411–423.
Fiet, J., M. Metalova and Z. Sindelka. 1970. Incorporation of3H thymidine into damaged pulp of rat incisors. J. Dent. Res. 49: 783–786.
Rinaldini, L. M. 1958. The isolation of living cells from animal tissues. Int. Rev. Cytol. 7: 587–647.
Perlman, G. E. and L. Lorand (Eds.) 1970. Proteolytic Enzymes. In:Methods in Enzymology. Vol. 19. Academic Press, New York and London.
Brown, W. A. B., P. V. Christofferson, M. Massler, and M. B. Weiss. 1960. Postnatal tooth development in cattle. Am. J. Vet. Res. 21: 7–34.
Pincus, P. 1950. Some physiological data on the human dental pulp. Br. Dent. J. 89: 143–148.
Lison, L. 1950. Quoted in Culling, C.F.A. 1957Handbook of Histopathological Technique, Butterworth, London.
Arnon, R. 1970. Papain. In: G. E. Perlman and L. Lorand (Eds.),Methods in Enzymology 19: 226–244. Academic Press, New York and London.
Liener, I. E. and B. Friedenson. 1970. Ficin. In: G. E. Perlman and L. Lorand (Eds.),Methods in Enzymology Academic Press, New York and London 19: 261–273.
Murachi, T. 1970. Bromelain enzymes. In: G. E. Perlman and L. Lorand (Eds.),Methods in Enzymology, Academic Press, New York and London 19: 273–284.
Thomas, L. 1956. Reversible collapse of rabbits’ ears after i.v. papain and prevention of recovery by cortisone. J. Exp. Med. 104: 245–252.
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Supported in part by NIH Grant No. DE 02908 and by United Health Foundation Summer Fellowships to J.T.F. and J.F.C.
Supported in part by N.I.H. Grant 5 R01-DE 02908 to W.A.M. and by United Health Foundation Summer Fellowships to J.T.F. and J.F.C.
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Miller, W.A., Everett, M.M., Freedman, J.T. et al. Enzyme separation techniques for the study of growth of cells from layers of bovine dental pulp. In Vitro Cell.Dev.Biol.-Plant 12, 580–588 (1976). https://doi.org/10.1007/BF02797442
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DOI: https://doi.org/10.1007/BF02797442