Immuno-electron-microscopic identification of O-antigen-bearing oligodendroglial cells in vitro

Cell and Tissue Research
G J Berg, M Schachner

Abstract

Monoclonal antibodies to cell-surface antigens of oligodendrocytes (Sommer and Schachner 1980; Schachner et al. 1980) were used to identify this cell type by immuno-electron microscopy in monolayer cultures of fetal and early postnatal mouse cerebellum. The ultrastructural features of antigen-positive cells confirm that they are immature and mature oligodendrocytes, but not neurons, astrocytes or fibroblasts or fibroblast-like cells. Type I oligodendrocytes are the immature ones with a relatively large amount of moderately electron-lucent cytoplasm, clusters of ribosomes and complex networks of rough endoplasmic reticulum. Large numbers of mitochondria and microtubules, but not intermediate-sized filaments are seen in these cells. They comprise more than 90% of all 0-antigen-positive cells. Type II cells comprise only approximately 5% of all 0-antigen-positive cells. They are characterized by a limited amount of electron-dense cytoplasm, which appears more compact and granular than in type I cells. The rough endoplasmic reticulum is distributed evenly throughout the cytoplasm. Microtubules and mitochondria are present, but more difficult to distinguish due to the compactness of the cytoplasm. Type II cells display the more matu...Continue Reading

Citations

Aug 1, 1984·Pflügers Archiv : European journal of physiology·H KettenmannM Schachner
Jan 1, 1987·International Journal of Developmental Neuroscience : the Official Journal of the International Society for Developmental Neuroscience·B H Juurlink, R M Devon

❮ Previous
Next ❯

Related Concepts

Related Feeds

Cell Adhesion Molecules in AS

Cell adhesion molecules expressed on the vascular endothelium and circulating leukocytes in response to inflammatory stimuli are implicated in atherosclerosis. Here is the latest research.

3D Cellular Models of Brain and Neurodegeneration

Brain organoids are three-dimensional in vitro cellular models of the brain that can recapitulate many processes such as the neurodevelopment. In addition, these organoids can be combined with other cell types, such as neurons and astrocytes to study their interactions in assembloids. Disease processes can also be modeled by induced pluripotent stem cell-derived organoids and assembloids from patients with neurodegenerative disorders. Discover the latest research on the models here.

Astrocytes

Astrocytes are glial cells that support the blood-brain barrier, facilitate neurotransmission, provide nutrients to neurons, and help repair damaged nervous tissues. Here is the latest research.