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Loss of sorting nexin 27 contributes to excitatory synaptic dysfunction by modulating glutamate receptor recycling in Down’s syndrome
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Much of what is known about endocytic recycling in neurons has come from studies focused on the SNX27-Retromer pathway.
“Much of what we know about endocytic recycling in neurons has come from studies focused on the SNX27-Retromer pathway”
From PI(3)P coordinates SNX17- and SNX27-dependent protein recycling for long-term synaptic plasticity (2025) · cites this paper as Wang et al., 2013
The Results show that SNX27 affects glutamate-receptor recycling, including in primary neurons. But the Discussion says whether this recycling depends on retromer remains to be investigated; it also does not establish the broader claim that much of what is known about neuronal endocytic recycling comes from studies of that pathway. No page numbers are available in our copy. (LLM, conf=0.87)
Experimental — accuracy not yet measuredSNX27-dependent recycling of AMPARs via Retromer adds new receptors to synapses during LTP, an instructive role.
“As noted above, SNX27-dependent recycling of AMPARs via Retromer has been shown to add new receptors to synapses during LTP (Wang et al., 2013; Loo et al.,2014; Hussain et al., 2014; Temkin et al., 2017), a clear instructive role.”
From Dual endomembrane recycling pathways function in parallel to support synapse maintenance and plasticity (2025) · cites this paper as Wang et al., 2013
The Results report that SNX27 promotes AMPAR recycling to the cell surface and that LTP is reduced in Snx27+/− mice. But the Discussion says whether AMPAR recycling depends on retromer remains to be investigated, and the paper does not show recycled receptors being added to synapses during LTP. It therefore does not establish the claimed instructive mechanism. (LLM, conf=0.88)
Experimental — accuracy not yet measuredSNX27 dysfunction is implicated in neurodegeneration and Down's syndrome, which greatly increases the risk for developing Alzheimer's disease.
“Importantly, SNX27 dysfunction is implicated in neurodegeneration and Down's syndrome, which greatly increases the risk for developing Alzheimer's disease [63][64][65].”
From Global identification of neuronal and astrocytic integral membrane proteins that require Retromer for their endosomal recycling (2026) · cites this paper as [65]
The Discussion section on the miR-155–C/EBPβ–SNX27 pathway says that loss of SNX27 may help explain synaptic dysfunction, memory difficulties and neurodegeneration in Down syndrome. Our copy does not state that Down syndrome greatly increases the risk of developing Alzheimer’s disease, so that part of the sentence is unsupported by this source. (LLM, conf=0.87)
Experimental — accuracy not yet measuredKnockout of SNX27 in mice leads to severe neuronal death and early lethality.
“Indeed, knockout of SNX27 in mice leads to severe neuronal death and early lethality [65] and SNX27 mutations in humans have been linked to epileptic seizures [63,64].”
From Global identification of neuronal and astrocytic integral membrane proteins that require Retromer for their endosomal recycling (2026) · cites this paper as [65]
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Jones, E., Adams, H., Chen, K.-E., Maroof, F., Ibbotson, T. M., Nakamura, Y., Banks, P. J., Healy, M. D., Lewis, P. A., Heesom, K. J., et al. (2026) · doi:10.64898/2026.05.14.724903
Metadata
- Authors
- Wang, X., Zhao, Y., Zhang, X., Badie, H., Zhou, Y., Mu, Y., Loo, L. S., Cai, L., Thompson, R. C., Yang, B., Chen, Y., Johnson, P. F., Wu, C., Bu, G., Mobley, W. C., Zhang, D., Gage, F. H., Ranscht, B., Zhang, Y.-W., Lipton, S. A., Hong, W., & Xu, H.
- Venue
- Nature Medicine
- Published
- 2013-03-24
- Volume
- 19
- Issue
- 4
- Pages
- 473-480
- ISSN
- 1078-8956
- 1546-170X
- PMC
- PMC3911880
- Cited by
- 220
- References
- 6
- Language
- en
- Licence
- www.springer.com/tdm (tdm)
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