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Two phenotypically distinct B lymphocytes (IgMhighIgDlow and IgMlowIgDhigh) in chronic gastric ulcer in the rat.

Authors
  • Ohmiya, N
  • Ito, M
  • Ohbayashi, M
  • Arisawa, T
  • Goto, H
  • Tsukamoto, Y
  • Hayakawa, T
  • Asai, J
Type
Published Article
Journal
Clinical and experimental immunology
Publication Date
Apr 01, 1995
Volume
100
Issue
1
Pages
151–156
Identifiers
PMID: 7697915
Source
Medline
License
Unknown

Abstract

We determined the kinetics and phenotypes of infiltrating B cells in gastric ulcer in the rat induced by gastric injection of acetic acid (day 0). Few B cells were found in the lesion in the early stages of ulceration. On day 40, two kinds of B cells with phenotypes of IgMhighIgDlowOX33 (CD45)+OX19 (CD5)- and IgMlowIgDhighOX33 (CD45)+OX19 (CD5)- were scattered in the granulation tissue of open ulcers, but not in the healed scar tissue. On day 180, those two kinds of B cells formed primary follicles in the granulation tissue of open ulcers, but were absent from the healed scar tissue. The IgMhighIgDlowOX33 (CD45)+OX19 (CD5)- B cell was considered to be identical to the marginal zone B cell of rat spleen. This phenotype of B cell might be associated with inflammatory process in chronic gastric ulcer.

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