Thymic atrophy in the mouse is a soluble problem of the thymic environment

Richard Aspinall, Deborah Andrew

Research output: Contribution to journalReview article

83 Citations (Scopus)

Abstract

Age related deterioration in the function of the immune system has been recognised in many species. The clinical presentations of such immune dysfunction are an age-related increased susceptibility to certain infections, and an increased incidence of autoimmune disease and certain cancers. Laboratory investigations reveal a reduced ability of the cells from older individuals, compared with younger individuals, to perform in functional in vitro assays. These manifestations are thought to be causally linked to an age associated involution of the thymus, which precedes the onset of immune dysfunction. Hypotheses to account for the age-related changes in the thymus include: (i) an age related decline in the supply of T cell progenitors from the bone marrow (ii) an intrinsic defect in the marrow progenitors, or (iii) problems with rearrangement of the TCR β chain because of a defect in the environment provided by the thymus. We have analysed these possible options in normal mice and also in mice carrying a transgenic T cell receptor. The results from these studies reveal no age related decline either in the number of function of T cell progenitors in the thymus, but changes in the thymic environment in terms of the cytokines produced. We have shown that specific cytokine replacement therapy leads to an increase in thymopoiesis in old animals.

Original languageEnglish
Pages (from-to)1629-1637
Number of pages9
JournalVaccine
Volume18
Issue number16
Early online date21 Feb 2000
DOIs
Publication statusPublished - 25 Feb 2000
Externally publishedYes

Fingerprint

atrophy
Thymus Gland
Atrophy
mice
T-lymphocytes
Bone Marrow
Cytokines
T-Lymphocytes
cytokines
T-Cell Antigen Receptor
Autoimmune Diseases
Immune System
autoimmune diseases
bone marrow
immune system
Incidence
Infection
deterioration
genetically modified organisms
incidence

ASJC Scopus subject areas

  • Molecular Medicine
  • Immunology and Microbiology(all)
  • veterinary(all)
  • Public Health, Environmental and Occupational Health
  • Infectious Diseases

Cite this

Thymic atrophy in the mouse is a soluble problem of the thymic environment. / Aspinall, Richard; Andrew, Deborah.

In: Vaccine, Vol. 18, No. 16, 25.02.2000, p. 1629-1637.

Research output: Contribution to journalReview article

Aspinall, Richard ; Andrew, Deborah. / Thymic atrophy in the mouse is a soluble problem of the thymic environment. In: Vaccine. 2000 ; Vol. 18, No. 16. pp. 1629-1637.
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