» Articles » PMID: 1961719

Phosphorylation-dependent Regulation of Axon Fasciculation

Overview
Specialty Science
Date 1991 Dec 1
PMID 1961719
Citations 3
Authors
Affiliations
Soon will be listed here.
Abstract

Axons often grow along other axons to produce bundles called fascicles, and a number of cell adhesion molecules (CAMs) found on axon surfaces contribute to this process. The surprising observation that Fab fragments against individual CAMs can completely block fascicle formation suggests that the different axon-associated CAMs are functionally linked. The present studies investigate whether such a linkage might reflect intracellular regulatory mechanisms. Results obtained with chicken retinal explants in culture indicate that fasciculation is highly sensitive to cytoplasmic protein phosphorylation by means of a mechanism that does not alter levels of CAM expression. Moreover, the potent effect of individual Fabs on fasciculation disappears with enhanced phosphorylation. These observations suggest that growing axons possess a general regulatory process for the multiple CAMs that participate in fasciculation.

Citing Articles

The Life of a Trailing Spouse.

Lemmon V J Neurosci. 2021; 41(1):3-10.

PMID: 33408132 PMC: 7786219. DOI: 10.1523/JNEUROSCI.2874-20.2020.


Clinical mutations in the L1 neural cell adhesion molecule affect cell-surface expression.

Moulding H, Martuza R, Rabkin S J Neurosci. 2000; 20(15):5696-702.

PMID: 10908608 PMC: 6772530.


Regulation of axonal growth in the vertebrate nervous system by interactions between glycoproteins belonging to two subgroups of the immunoglobulin superfamily.

Sonderegger P, Rathjen F J Cell Biol. 1992; 119(6):1387-94.

PMID: 1469039 PMC: 2289751. DOI: 10.1083/jcb.119.6.1387.

References
1.
Levi-Montalcini R, ANGELETTI P . Nerve growth factor. Physiol Rev. 1968; 48(3):534-69. DOI: 10.1152/physrev.1968.48.3.534. View

2.
Rutishauser U, Gall W, Edelman G . Adhesion among neural cells of the chick embryo. IV. Role of the cell surface molecule CAM in the formation of neurite bundles in cultures of spinal ganglia. J Cell Biol. 1978; 79(2 Pt 1):382-93. PMC: 2110253. DOI: 10.1083/jcb.79.2.382. View

3.
Rutishauser U, Edelman G . Effects of fasciculation on the outgrowth of neurites from spinal ganglia in culture. J Cell Biol. 1980; 87(2 Pt 1):370-8. PMC: 2110746. DOI: 10.1083/jcb.87.2.370. View

4.
Halfter W, Newgreen D, Sauter J, Schwarz U . Oriented axon outgrowth from avian embryonic retinae in culture. Dev Biol. 1983; 95(1):56-64. DOI: 10.1016/0012-1606(83)90006-4. View

5.
Hoffman S, Edelman G . Kinetics of homophilic binding by embryonic and adult forms of the neural cell adhesion molecule. Proc Natl Acad Sci U S A. 1983; 80(18):5762-6. PMC: 384339. DOI: 10.1073/pnas.80.18.5762. View