Summary
We investigated the localization of amylase in normal human lungs and the female genital tract using immunohistochemical and histochemical methods. Immunohistochemical procedures were applied to formaldehydefixed, paraffin-embedded specimens as well as to cryostat sections of periodate/lysine/paraformaldehyde (PLP)-fixed tissues. The starch-substrate-film method was used for the histochemical investigation of unfixed frozen sections. Amylase immunoreactivity was observed in ciliated epithelial cells of the bronchus and in serous cells of the bronchial glands but not in the alveolar epithelium. Immunoreactive amylase was also found in the cytoplasm of the ciliated epithelium of the fallopian tubes, especially in the apical part of the cytoplasm and in ciliary vesicles. Immunoreactive amylase was also found to be present in the surface epithelial cells and glands of the uterine cervix, as well as in the superficial part of the endometrial glands. The distribution of amylase activity revealed using histochemistry was similar to that observed in cryostat sections of PLP-fixed tissues after immunohistochemical staining. Amylase amtigenicity was better preserved in cryostat sections of PEP-fixed materials than in formaldehyde-fixed, paraffinembedded specimens. The results are discussed in relation to pulmonary and female-genital-tract diseases.
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This work was supported by a grant from the Tokyo Metropolitan Government
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Hayashi, Y., Fukayama, M., Koike, M. et al. Amylase in human lungs and the female genital tract. Histochemistry 85, 491–496 (1986). https://doi.org/10.1007/BF00508431
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DOI: https://doi.org/10.1007/BF00508431