The DOI matches its Crossref record; 8 of the 8 references it cites were found in a registry or an index.
Early ultrastructural defects of axons and axon–glia junctions in mice lacking expression of Cnp1
Abstract
Most axons in the central nervous system (CNS) are surrounded by a multilayered myelin sheath that promotes fast, saltatory conduction of electrical impulses. By insulating the axon, myelin also shields the axoplasm from the extracellular milieu. In the CNS, oligodendrocytes provide support for the long‐term maintenance of myelinated axons, independent of the myelin sheath. Here, we use electron microscopy and morphometric analyses to examine the evolution of axonal and oligodendroglial changes in mice deficient in 2′,3′‐cyclic nucleotide 3′‐phosphodiesterase (CNP) and in mice deficient in both CNP and proteolipid protein (PLP/DM20). We show that CNP is necessary for the formation of a normal inner tongue process of oligodendrocytes that myelinate small diameter axons. We also show that axonal degeneration in Cnp1 null mice is present very early in postnatal life. Importantly, compact myelin formed by transplanted Cnp1 null oligodendrocytes induces the same degenerative changes in shiverer axons that normally are dysmyelinated but structurally intact. Mice deficient in both CNP and PLP develop a more severe axonal phenotype than either single mutant, indicating that the two oligodendroglial proteins serve distinct functions in supporting the myelinated axon. These observations support a model in which the trophic functions of oligodendrocytes serve to offset the physical shielding of axons by myelin membranes. © 2009 Wiley‐Liss, Inc.
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Cites
Disruption of Cnp1 uncouples oligodendroglial functions in axonal support and myelination
Lappe-Siefke, C., Goebbels, S., Gravel, M., Nicksch, E., Lee, J., Braun, P. E., Griffiths, I. R., & Nave, K.-A. (2003) · Nature Genetics · doi:10.1038/ng1095 · Cited by 1,036
Self-citationAxonal Swellings and Degeneration in Mice Lacking the Major Proteolipid of Myelin
Griffiths, I., Klugmann, M., Anderson, T., Yool, D., Thomson, C., Schwab, M. H., Schneider, A., Zimmermann, F., McCulloch, M., Nadon, N., et al. (1998) · Science · doi:10.1126/science.280.5369.1610 · Cited by 889
Self-citationAxon degeneration mechanisms: Commonality amid diversity
Coleman, M. (2005) · Nature reviews. Neuroscience · doi:10.1038/nrn1788 · Cited by 819
Axonal loss and neuroinflammation caused by peroxisome-deficient oligodendrocytes
Kassmann, C. M., Lappe-Siefke, C., Baes, M., Brügger, B., Mildner, A., Werner, H. B., Natt, O., Michaelis, T., Prinz, M., Frahm, J., et al. (2007) · Nature Genetics · doi:10.1038/ng2070 · Cited by 357
Self-citationEdgar, J. M., McLaughlin, M., Yool, D., Zhang, S.-C., Fowler, J. H., Montague, P., Barrie, J. A., McCulloch, M. C., Duncan, I. D., Garbern, J., et al. (2004) · The Journal of Cell Biology · doi:10.1083/jcb.200312012 · Cited by 328
Self-citationSimons, M., Krämer, E.-M., Thiele, C., Stoffel, W., & Trotter, J. (2000) · The Journal of Cell Biology · doi:10.1083/jcb.151.1.143 · Cited by 293
Stys, P. K., Ransom, B. R., & Waxman, S. G. (1991) · Brain Research · doi:10.1016/0006-8993(91)91154-s · Cited by 195
Thurnherr, T., Benninger, Y., Wu, X., Chrostek, A., Krause, S. M., Nave, K.-A., Franklin, R. J. M., Brakebusch, C., Suter, U., & Relvas, J. B. (2006) · The Journal of Neuroscience · doi:10.1523/jneurosci.2158-06.2006 · Cited by 142 · cited 2×
“The morphological changes of the inner tongue in CNP deficient mice have some similarity to those caused following a conditional ablation of the Rho GTPases, Cdc42, and Rac1 in oligodendrocytes (Thurnherr et al., 2006).”
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Cited by
Oligodendroglia metabolically support axons and contribute to neurodegeneration
Lee, Y., Morrison, B. M., Li, Y., Lengacher, S., Farah, M. H., Hoffman, P. N., Liu, Y., Tsingalia, A., Jin, L., Zhang, P.-W., et al. (2012) · Nature · doi:10.1038/nature11314 · Cited by 1,664
Myelination and support of axonal integrity by glia
Nave, K.-A. (2010) · Nature · doi:10.1038/nature09614 · Cited by 1,062
Self-citationMyelination of the Nervous System: Mechanisms and Functions
Nave, K.-A., & Werner, H. B. (2014) · Annual Review of Cell and Developmental Biology · doi:10.1146/annurev-cellbio-100913-013101 · Cited by 983
Self-citationProlonged myelination in human neocortical evolution
Miller, D. J., Duka, T., Stimpson, C. D., Schapiro, S. J., Baze, W. B., McArthur, M. J., Fobbs, A. J., Sousa, A. M. M., Šestan, N., Wildman, D. E., et al. (2012) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1117943109 · Cited by 699
Myelin in the Central Nervous System: Structure, Function, and Pathology
Stadelmann, C., Timmler, S., Barrantes-Freer, A., & Simons, M. (2019) · Physiological Reviews · doi:10.1152/physrev.00031.2018 · Cited by 728
Metadata
- Authors
- Edgar, J. M., McLaughlin, M., Werner, H. B., McCulloch, M. C., Barrie, J. A., Brown, A., Faichney, A. B., Snaidero, N., Nave, K., & Griffiths, I. R.
- Venue
- Glia
- Publisher
- Wiley
- Published
- 2009-05-20
- Volume
- 57
- Issue
- 16
- Pages
- 1815-1824
- ISSN
- 0894-1491 (ISSN-L)
- 1098-1136
- OpenAlex
- W2152492028
- Cited by
- 169
- References
- 8
- FWCI
- 2.13
- Type
- journal article
- Language
- en
- Open access
- closed
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- Edgar, J. M., McLaughlin, M., Werner, H. B., McCulloch, M. C., Barrie, J. A., Brown, A., Faichney, A. B., Snaidero, N., Nave, K., & Griffiths, I. R. (2009). Early ultrastructural defects of axons and axon–glia junctions in mice lacking expression of Cnp1. Glia. https://doi.org/10.1002/glia.20893
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