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STUDIES ON THE LYMPHOCYTES IN THE INTESTINAL EPITHELIUM OF THE CHICKEN

1972; Wiley; Volume: 80A; Issue: 1 Linguagem: Inglês

10.1111/j.1699-0463.1972.tb00272.x

0365-4184

Ove Bäck,

Neuroinflammation and Neurodegeneration Mechanisms

The occurrence of lymphocytes within the ileal epithelium was studied in newly hatched, 6‐day‐old, 7‐and 9‐week‐old and 18‐month‐old chickens. The number of epithelial lymphocytes (theliolymphocytes) increased markedly with age. The specific localization of the epithelial lymphocytes differed from that in other species described, i.e. rodents and man, in the respect that a larger proportion of the lymphocytes were distributed towards the surface of the epithelium, especially in the 6‐day‐old chickens. Globule leucocytes in the epithelium were proportional to the number of epithelial lymphocytes and their number increased with age just as that of the epithelial lymphocytes. The increase in the number of epithelial lymphocytes with age was considered to be connected with the peripheralization of the second level lymphoid tissues and the maturation of the immune response.