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cc-by (c) Hoegg-Beiler, Maja B. et al., 2014
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/129370

Disrupting MLC1 and GlialCAM and ClC-2interactions in leukodystrophy entails glial chloridechannel dysfunction

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Defects in the astrocytic membrane protein MLC1, the adhesion molecule GlialCAM or the chloride channel ClC-2 underlie human leukoencephalopathies. Whereas GlialCAM binds ClC-2 and MLC1, and modifies ClC-2 currents in vitro, no functional connections between MLC1 and ClC-2 are known. Here we investigate this by generating loss-of-function Glialcam and Mlc1 mouse models manifesting myelin vacuolization. We find that ClC-2 is unnecessary for MLC1 and GlialCAM localization in brain, whereas GlialCAM is important for targeting MLC1 and ClC-2 to specialized glial domains in vivo and for modifying ClC-2's biophysical properties specifically in oligodendrocytes (OLs), the cells chiefly affected by vacuolization. Unexpectedly, MLC1 is crucial for proper localization of GlialCAM and ClC-2, and for changing ClC-2 currents. Our data unmask an unforeseen functional relationship between MLC1 and ClC-2 in vivo, which is probably mediated by GlialCAM, and suggest that ClC-2 participates in the pathogenesis of megalencephalic leukoencephalopathy with subcortical cysts.

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HOEGG-BEILER, Maja B., et al. Disrupting MLC1 and GlialCAM and ClC-2interactions in leukodystrophy entails glial chloridechannel dysfunction. Nature Communications. 2014. Vol. 5, num. 3475. ISSN 2041-1723. [consulted: 19 of August of 2026]. Available at: https://hdl.handle.net/2445/129370

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