Tuning of delta-protocadherin adhesion through combinatorial diversity
Abstract
The delta-protocadherins (δ-Pcdhs) play key roles in neural development, and expression studies suggest they are expressed in combination within neurons. The extent of this combinatorial diversity, and how these combinations influence cell adhesion, is poorly understood. We show that individual mouse olfactory sensory neurons express 0-7 δ-Pcdhs. Despite this apparent combinatorial complexity, K562 cell aggregation assays revealed simple principles mediate tuning of δ-Pcdh adhesion. Cells can vary the number of δ-Pcdhs expressed, the level of surface expression, and which δ-Pcdhs are expressed, as different members possess distinct apparent adhesive affinities. These principles contrast with those identified previously for the clustered protocadherins (cPcdhs), where the particular combination of cPcdhs expressed does not appear to be a critical factor. Despite these differences, we show δ-Pcdhs can modify cPcdh adhesion. Our studies show how intra- and interfamily interactions can greatly amplify the impact of this small subfamily on neuronal function.
Data availability
All data generated or analyzed during this study are included in the manuscript and supporting files. A link to the software code is also provided.
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Olfactory sensory neurons transiently express multiple olfactory receptors during developmentNCBI Sequence Read Archive, SRP065920.
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Hierarchical deconstruction of mouse olfactory sensory neurons: from whole mucosa to single-cell RNA-seqEuropean Nucleotide Archive, ERS715983.
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Single-cell transcriptomics reveals receptor transformations during olfactory neurogenesisNCBI Gene Expression Omnibus, GSE75413.
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Hierarchical deconstruction of mouse olfactory sensory neurons: from whole mucosa to single-cell RNA-seqEuropean Nucleotide Archive, ERS715985.
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Hierarchical deconstruction of mouse olfactory sensory neurons: from whole mucosa to single-cell RNA-seqEuropean Nucleotide Archive, ERS715988.
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Hierarchical deconstruction of mouse olfactory sensory neurons: from whole mucosa to single-cell RNA-seqEuropean Nucleotide Archive, ERS715986.
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Hierarchical deconstruction of mouse olfactory sensory neurons: from whole mucosa to single-cell RNA-seqEuropean Nucleotide Archive, ERS715987.
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Hierarchical deconstruction of mouse olfactory sensory neurons: from whole mucosa to single-cell RNA-seqEuropean Nucleotide Archive, ERS715984.
Article and author information
Author details
Funding
National Institutes of Health (R21DC015107)
- Adam J Bisogni
Cornell Veterinary College Research Grants Program (Seed Grant)
- Adam J Bisogni
Australian Research Council (FT0991918)
- Jean Y H Yang
National Health and Medical Research Council (APP1111338)
- Jean Y H Yang
Commonwealth Scientific and Industrial Research Organisation (OCE Top Up Scholarship)
- Shila Ghazanfar
National Institutes of Health (T32HD057854)
- Adam J Bisogni
Australian Postgraduate Award (Postgraduate Award)
- Shila Ghazanfar
National Institutes of Health (R01DC007489)
- Adam J Bisogni
- Eric O Williams
- Heather M Marsh
The funders had no role in study design, data collection and interpretation, or the decision to submit the work for publication.
Reviewing Editor
- Tom Maniatis, Columbia University, United States
Ethics
Animal experimentation: This study was performed in strict accordance with the recommendations in the Guide for the Care and Use of Laboratory Animals of the National Institutes of Health. All of the animals were handled according to approved institutional animal care and use committee (IACUC) protocols (#01-0075) of Cornell University.
Version history
- Received: August 17, 2018
- Accepted: December 11, 2018
- Accepted Manuscript published: December 14, 2018 (version 1)
- Version of Record published: January 9, 2019 (version 2)
Copyright
© 2018, Bisogni et al.
This article is distributed under the terms of the Creative Commons Attribution License permitting unrestricted use and redistribution provided that the original author and source are credited.
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