Cited by 0Cellular transport and secretionGenetics and Neurodevelopmental DisordersNeurogenesis and neuroplasticity mechanisms

The DOI matches its Crossref record; 40 of the 40 references it cites were found in a registry or an index.

Distribution analysis of RAB11A and RAB11B, small GTP-binding proteins, in mice

Abstract

Background RAB11 is a small GTP-binding protein that regulates intracellular trafficking of recycling endosomes and is thereby involved in several neural functions. Highly similar RAB11 isoforms are encoded by RAB11A and RAB11B genes, and their pathogenic variants are associated with similar neurodevelopmental disorders, suggesting that RAB11A and RAB11B play similar and important roles in brain development. However, the detailed distribution patterns of these isoforms in various organs, including the brain, remain undetermined. Methods and results We generated an antibody against RAB11A and analyzed the distribution of RAB11A and RAB11B in mice. RAB11A was highly expressed in the ovary and the uterus but less abundant in the brain, whereas RAB11B was abundant in the brain, the testis, the ovary, and the uterus. In the developing cortex, RAB11A was enriched in the apical endfeet of apical radial glial cells, whereas RAB11B was abundantly expressed in postmigratory neurons of the cortical plate. In the adult mouse brain, RAB11A and RAB11B were similarly expressed in most neurons, with weak RAB11A signals also observed in the neuropil. In cultured neurons, RAB11A and RAB11B showed only partial co-localization and differential distribution in both soma and neurites. Notably, RAB11A appeared to be more abundant at presynapses than RAB11B. Conclusions RAB11A and RAB11B exhibit distinct and characteristic distributions in the brain and other organs, suggesting they play different roles throughout the body. In particular, our results suggest they make distinct contributions to cortical development and regulation of the synaptic vesicle cycle.

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Crossref · 10.1007/s11033-025-10282-z

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Metadata

Authors
Tsuneura, Y., Matsuki, T., Eda, S., Hamada, N., Harada, A., Nagata, K.-I., & Nakayama, A.
Affiliations
  • Institute for Developmental Research (JP)
  • The University of Osaka (JP)
Corresponding author
Nakayama, Atsuo
Venue
Molecular Biology Reports
Published
2025-01-30
Volume
52
Issue
1
Pages
178-178
ISSN
  • 0301-4851 (ISSN-L)
  • 1573-4978
OpenAlex
W4406962293
Cited by
0
References
39
FWCI
0.00
Type
journal article
Language
en
Open access
closed
Locations
  • Molecular Biology Reports (publishedVersion)
  • PubMed (publishedVersion)
Funders
Japan Society for the Promotion of Science (JP22K15912, JP20K08224)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular transport and secretion
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
Keywords
Rab11a, Rab11b, small GTPases, recycling endosomes, intracellular trafficking, cortical development, radial glia, presynaptic localization, synaptic vesicle recycling, brain development, neurodevelopmental disorders, tissue-specific gene expression
MeSH terms
rab11 GTP-Binding Proteins, Animals, Brain, Female, Male, Mice, Inbred C57BL, Neurons, Ovary, Uterus, rab GTP-Binding Proteins, Mice

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