title: Morphological characterization of stationary reticulum cells of the stromal in the mesenteric lymph node of the guinea pig.
abstract: The large mesenteric lymph node taken from guinea pigs in a period of time ranging from the 10th day prepartum till the 26th day postpartum has been examined in order to study: the morphological features of the stromal stationary reticulum cells with particular regard to recognize their stages of development; the possible ontogenetic relationship between these cells during the maturation of the lymphoid tissue. Our data support the hypothesis that from local mesenchymal cells originates a pool of poorly differentiated reticulum cells that can give rise to stromal stationary reticulum cells (myofibroblast-like cells, fibroblast-like cells, pericyte-like cells and dendritic cells). These elements have a characteristic distribution pattern likely related to different local functional requirements.
mesh_terms: D000375:Aging; D000818:Animals; D000831:Animals, Newborn / Q000033:anatomy & histology; D006168:Guinea Pigs; D008198:Lymph Nodes / Q000166:cytology* / Q000648:ultrastructure; D008643:Mesentery; D008854:Microscopy, Electron