Ontogeny of the immune system: fetal lamb as a model.

Abstract:

:We examined adult sheep lymphocytes for the following surface markers: Surface membrane immunoglobulin, antigen identified by anti-sheep thymocyte globulin and complement receptors. We quantitated sheep peripheral blood mononuclear leukocyte proliferative responses to mitogens and alloantigens, and demonstrated a neutrophil-directed chemotactic factor (N-LDCF) liberated by mitogen-stimulated sheep mononuclear cells. A comparison of adult and fetal sheep from 120-150 d of gestation demonstrated that 1) fetal sheep had adult proportions of surface membrane Ig+ and T+ lymphocytes but a significant decrease in FcIgG receptor+ lymphocytes, 2) proliferative responses of fetal sheep blood mononuclear cells to mitogens and alloantigens were comparable to adult responses, and 3) fetal mononuclear leukocytes failed to produce the lymphokine, N-LDCF, in response to mitogen stimulation.

journal_name

Pediatr Res

journal_title

Pediatric research

authors

Raghunathan R,Miller ME,Wuest C,Faust J

doi

10.1203/00006450-198405000-00012

subject

Has Abstract

pub_date

1984-05-01 00:00:00

pages

451-6

issue

5

eissn

0031-3998

issn

1530-0447

journal_volume

18

pub_type

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