Lack of apoptosis of infiltrating cells as the mechanism of high susceptibility to EAE in DA rats

M. L. Lukic, E. Mensah-Brown, S. Galadari, A. Shahin

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


Dark Agouti (DA) rats are highly susceptible to induction of Th-1-mediated autoimmunity disease, including experimental allergic encephalomyelitis (EAE). In contrast to other susceptible rat strains in which disease is induced only with encephalitogen emulsified in complete Freund's adjuvants (CFA), in DA rats EAE develops after injection of encephalitogen in incomplete Freund's adjuvants (IFA) or Titermax, putative Th-2 directed adjuvant. Lymph node cells derived from immunized DA rats and stimulated in vitro produce significantly more Interferon-γ (IFN-γ) than resistant Albino Oxford (AO) rats. However, cells derived from both strains produce large amounts of IL-10 but not IL-4. Immunized lymph node cells derived from EAE susceptible (AO × DA) F1rats induce clinical signs of disease in sublethally irradiated parental DA but not AO rats. The pathohistology of the target tissue in these recipients clearly demonstrated infiltration of mononuclear cells in both parental strains. However, the number of CD4+ cells was significantly higher and number of apoptotic cells significantly lower in DA rats sacrificed 8 days after passive transfer. We postulate that in addition to higher IFN-γ and TNF-α production, resistance to early apoptosis of the invading cells in the target tissue possibly due to lack of downregulation by TGF-β leads to exceptional susceptibility to EAE in DA rats.

Original languageEnglish
Pages (from-to)193-200
Number of pages8
JournalDevelopmental Immunology
Issue number3-4
Publication statusPublished - 2001


  • Adjuvants
  • Apoptosis
  • Cytokines
  • EAE

ASJC Scopus subject areas

  • Immunology
  • Developmental Biology


Dive into the research topics of 'Lack of apoptosis of infiltrating cells as the mechanism of high susceptibility to EAE in DA rats'. Together they form a unique fingerprint.

Cite this