Detection of Helicobacter pylori associated antigen and heat shock protein 60 on follicular dendritic cells in the germinal centres of low grade B cell lymphoma of gastric mucosa associated lymphoid tissue (MALT)

Keita Kobayashi, Kenji Yokota, Tadashi Yoshino, Yoshiro Kawahara, Ashoka Dey, Yoshikazu Hirai, Keiji Oguma, Tadaatsu Akagi

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Aims - To investigate the localisation of Helicobacter pylori antigens and the expression of human heat shock proteins (HSP) in stomachs affected by MALT lymphoma. Methods - Surgically resected stomachs from 24 patients with MALT lymphoma were immunostained with anti-H pylori rabbit antibodies (ORP-1 and ORP-2) and anti-human HSP60 mouse monoclonal antibodies (mAb) (LK-1 and LK-2). Results - Follicular dendritic cells of germinal centres in the stomachs affected by MALT lymphoma were immunostained with anti-H pylori polyclonal antibodies and with anti-human HSP60 mAb, as were the epithelial cells. None of the lymph node samples reacted. Conclusions - Human HSP60, which cross reacts with anti-H pylori polyclonal antibodies, is often expressed on follicular dendritic cells in gastric MALT lymphoma tissues and may be aetiologically relevant to lymphomagenesis of MALT lymphoma.

Original languageEnglish
Pages (from-to)396-398
Number of pages3
JournalJournal of Clinical Pathology
Volume51
Issue number5
DOIs
Publication statusPublished - Jan 1 1998

Keywords

  • Helicobacter pylori
  • Immunohistochemistry
  • MALT lymphoma

ASJC Scopus subject areas

  • Pathology and Forensic Medicine

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