Immunohistochemical localization of a cytochrome p-450 isozyme in human nasal mucosa: Age-related trends

Marilyn L. Getchell, Ying Chen, Thomas V. Getchell, Marilyn L. Getchell, D. Larry Sparks, Thomas V. Getchell, Thomas V. Getchell, D. Larry Sparks, Xinxin Ding

Research output: Contribution to journalArticlepeer-review

76 Scopus citations

Abstract

Immunoperoxidase staining with an antibody to cytochrome P-450 (NMa) was used to investigate the localization of this isozyme in the human nasal mucosa. Olfactory mucosa was identified by staining of olfactory receptor cells with an antibody to olfactory marker protein. Immunoreactivity to NMa was localized in sustentacular cells in the olfactory epithelium, and in Bowman’s gland acinar cells and vascular endothelial cells in the lamina propria. In the respiratory mucosa, ciliated epithelial cells, as well as serous gland acinar cells and vascular endothelial cells in the lamina propria, were immunoreactive for this isozyme. An age-related decrement in the intensity and extent of immunoreactivity within these cells was noted in nasal tissue from patients 60 years of age and over when compared with that of patients under 60 years of age. These results identify sites of xenobiotic metabolism or activation in human nasal mucosa.

Original languageEnglish (US)
Pages (from-to)368-374
Number of pages7
JournalAnnals of Otology, Rhinology & Laryngology
Volume102
Issue number5
DOIs
StatePublished - May 1993
Externally publishedYes

Keywords

  • Alzheimer’s disease
  • cytochromes P-450
  • nasal mucosa
  • olfactory mucosa

ASJC Scopus subject areas

  • Otorhinolaryngology

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