Fixation techniques for secretory component in human lacrimal gland and conjunctiva

Am J Ophthalmol. 1981 Jun;91(6):789-93. doi: 10.1016/0002-9394(81)90014-3.

Abstract

We compared biopsy specimens of human lacrimal gland and conjunctiva preserved by alcohol-acetic acid with the same tissues preserved by freezing to find secretory component. Secretory component was found in lacrimal gland preserved both by alcohol-acetic acid and by freezing. The structure of the tissue was better preserved with the alcohol-acetic acid fixation. Three of eight conjunctival specimens preserved by alcohol-acetic acid showed weak staining for secretory component in a few superficial epithelial cells. We found nonspecific staining of the conjunctiva with the control antiserum, rhodamine-labeled goat antibovine serum. Two specimens preserved by freezing were unreadable; four of the remaining six stained nonspecifically with the remaining two specimens stained with neither the control nor the experimental antiserum; the second may have had more staining with the experimental antiserum than with the control. We found no evidence for including the conjunctiva in the secretory IgA immune system.

Publication types

  • Comparative Study
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Conjunctiva / immunology*
  • Fixatives
  • Freezing
  • Humans
  • Immunoglobulin Fragments / analysis*
  • Lacrimal Apparatus / immunology*
  • Preservation, Biological*
  • Secretory Component / analysis*

Substances

  • Fixatives
  • Immunoglobulin Fragments
  • Secretory Component