Lymphoid neogenesis and immune infiltration in aged liver.

ABSTRACT:

Unlabelled

Immune dysregulation and inflammation play a major role in the pathology of age-related disorders. In an earlier study, the microarray data from our laboratory indicated an increase in inflammation-related gene expression in the liver with age. We further investigated immune-related changes in the aged liver and found that the levels of inflammatory cytokines, chemokines, and inflammatory genes were higher in aged animals. Immunohistochemical studies showed that immune cells formed clusters or foci in the livers of old mice, preferentially near the perivascular regions. Further analysis revealed an enrichment of macrophages, T cells, B cells, natural killer cells, and neutrophils in old liver. Characterization of the immune clusters showed the presence of shared markers

SUBMITTER: Singh P 

PROVIDER: S-EPMC2859446 | biostudies-literature | 2008 May

REPOSITORIES: biostudies-literature