Summary
A quantitative immunocytochemical method is described for measuring intracellular thyroglobulin in human thyrocytes grown in monolayer, based on the imidazole-enhanced 3,3′-diaminobenzidine/peroxidase reaction. The influence of ten different fixatives on the content of thyroglobulin immobilized on nitrocellulose filters and in single cells and the influence of thyrotropin and interleukin-1β (IL-1β) on the amount of intracellular thyroglobulin were evaluated. The most suitable fixatives for single cells were 2% carbodiimide, Lison's ‘Gendre fluid’ and 2 or 4% paraformaldehyde, whereas Bouin, Carnoy A and B, formalin-calcium and Lillie's formaldehyde-acetic acid-alcohol fixative all resulted in reduction of intracellular thyroglobulin. Two per cent glutaraldehyde caused a considerable reduction (p<0.0001). Nitrocellulose filters were not suitable for evaluation of the fixatives, since the results did not correspond to those obtained with single cells. Thyrotropin (1 U/I) increased intracellular thyroglobulin, whereas addition of interleukin-1β to the culture medium for three days caused a dose-dependent reduction with a plateau level at 2×10−6 gl−1 (104 U/I_ of interleukin-1β. It is concluded that changes in intracellular thyroglobulin concentration caused by either thyrotropin or IL-1β can be quantified under experimental circumstances where samples for measurements of thyroglobulin-mRNA or extracellular thyroglobulin are difficult or impossible to obtain.
Similar content being viewed by others
References
Conovor, W. J. (1980)Practical nonparametric statistics. 2nd edn. New York: Wiley, & Sons Inc.
Dong, Q., Ludgate, M. &Vassart, G. (1989) Towards an antigenic map of human thyroglobulin: identification of ten epitope-bearing sequences within the primary structure of thyroglobulin.J. Endocrinol. 122, 169–76.
Nagayama, Y., Yamashita, S., Hirayu, H., Izumi, M. Uga, T., Ishikawa, N., Ito, K. &Nagataki, S. (1989) Regulation of thyroid peroxidase and thyroglobulin gene expression by thyrotropin in cultured human thyroid cells.J. Clin. Endocrinol Metab. 68, 1155–9.
Nibbering, P. H., Leijh, P. C. J. &Van Furth, R. (1985) A cytophotometric method to quantitate the binding of monoclonal antibodies to individual cells.J. Histochem. Cytochem. 33, 453–9.
Nibbering, P. H., Marijnen, J. G. J., Raap, A. K., Leijh, P. C. J. &Van Furth, R. (1986). Quantitative study of enzyme immunocytochemical reactions performed with enzyme conjugates immobilized on nitrocellulose.Histochemistry 84, 538–43.
Nibbering, P. H. &Van Furth, R. (1987). Microphotometric quantitation of the reaction product of several indirect immunoperoxidase methods demonstrating monoclonal antibody binding to antigens immobilized on nitrocellulose.J. Histochem. Cytochem 35, 1425–31.
Paiement, J. &Roy, L. (1988) Electrophoretic protein blots as aids in choosing fixatives for immunocytochemistry.J. Histochem. Cytochem. 36, 441–6.
Pearse, A. G. E. (1980)Histochemistry: Theoretical and Applied, Vol. 1, 4th edn., pp. 97–158. Edinburgh, London, New York: Churchill Livingstone.
Rasmussen, Å. K., Kayser, L., Bech, K., Feldt-Rasmussen, U., Perrild, H. &Bendtzen, K. (1990) Differential effects of interleukin 1α and 1β on cultured human and rat thyroid epithelial cells.Acta Endocrinol. (Copenh).122, 520–6.
Svenson, M. &Bendtzen, K. (1988) Inhibitor of interleukin 1 in normal human urine.Scand. J. Immunol. 27, 593–9.
Yamashita, S., Kimura, H., Ashizawa, K., Nagayama, Y., Hirayu, H., Izumi, M. &Nagataki, S. (1989) Interleukin-1 inhibits thyrotropin induced human thyroglobulin gene expression.J. Endocrinol 122, 177–83.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kayser, L., Olsen, B.E. & Høyer, P.E. Quantitative cytochemical demonstration of intracellular thyroglobulin in cultured human thyrocytes. Effects of fixatives, TSH and Interleukin-1β. Histochem J 23, 235–240 (1991). https://doi.org/10.1007/BF01462246
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF01462246