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  • Title: Stromal cell organisation in the mouse lymph node. A light and electron microscopic investigation using the zinc iodide-osmium technique.
    Author: Crivellato E, Mallardi F.
    Journal: J Anat; 1997 Jan; 190 ( Pt 1)(Pt 1):85-92. PubMed ID: 9034884.
    Abstract:
    The organisation of the stromal cell compartment in the mouse lymph node was studied by light and electron microscopy after tissue impregnation by the zinc iodide-osmium (ZIO) method. Fibroblastic reticular cells (FRCs) represented the main stromal cell population. These cells were located both in the cortical region and in the medulla and exhibited various configurations. In the cortex, FRCs were fusiform in shape and came into close proximity with the floor of the subcapsular sinus. In the medulla, the FRCs were shaped like irregular dendritic cells which formed a complex 3-dimensional network. The FRCs surrounded vascular structures such as capillaries and/or high endothelial venules; in these instances they were organised in a discontinuous sheath-like fashion around the vessel wall. By light and electron microscopy, FRCs have been observed to come in close spatial relationship with a number of cells in the lymph node, including sinus endothelial cells, the endothelium of high endothelial venules and capillaries, various types of lymphocytes, follicular dendritic cells and interdigitating cells. These microanatomical features are consistent with the proposal that FRCs may be involved in the communicative networks between the different lymph node compartments. In particular, the FRCs may be involved in the transport of molecules from the sinus compartment to the high endothelial venules or to the distinct cell populations in the lymphoid parenchyma.
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