Ultrastructure of reticulum cells in the bone marrow
作者:
A. Biermann,
Graf Von Keyserlingk,
期刊:
Cells Tissues Organs
(Karger Available online 1978)
卷期:
Volume 100,
issue 1
页码: 34-43
ISSN:1422-6405
年代: 1978
DOI:10.1159/000144879
出版商: S. Karger AG
关键词: Reticulum cells;Bone marrow;Ultrastructure
数据来源: Karger
摘要:
In this study the attempt was made to classify the reticulum cells of the bone marrow on the basis of electron-microscopic findings. The basis of the differentiation was the ability of the cells to phagocytize substances or not. For two cell types the intracytoplasmic filaments were used as distinctive marks. The following classification resulted: (a) phagocytic reticulum cells, (b) undifFerentiated reticulum cells, (c) fibrous reticulum cells of type I, which contain filaments of 4–8 nm diameter and are located near the blood sinus of the bone marrow, (d) fibrous reticulum cells of type II, which contain intracytoplasmic filaments of 10 nm diameter; since these cells contain neutral fat bodies, the possibility of a reversible conversion to fat cells has to be assumed and (e) fibroblasts, cells which synthesize the substance of the extracellular space. A connexion of reticulum cells to haematopoietic functions or to stem cell functions could not be foun
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