Non-homogenous axonal bouton distribution in whole-brain single-cell neuronal networks

Summary: We examined the distribution of pre-synaptic contacts in axons of mouse neurons and constructed whole-brain single-cell neuronal networks using an extensive dataset of 1,891 fully reconstructed neurons. We found that bouton locations were not homogeneous throughout the axon and among brain...

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Main Authors: Penghao Qian, Linus Manubens-Gil, Shengdian Jiang, Hanchuan Peng
Format: Article
Language:English
Published: Elsevier 2024-03-01
Series:Cell Reports
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2211124724001992
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author Penghao Qian
Linus Manubens-Gil
Shengdian Jiang
Hanchuan Peng
author_facet Penghao Qian
Linus Manubens-Gil
Shengdian Jiang
Hanchuan Peng
author_sort Penghao Qian
collection DOAJ
description Summary: We examined the distribution of pre-synaptic contacts in axons of mouse neurons and constructed whole-brain single-cell neuronal networks using an extensive dataset of 1,891 fully reconstructed neurons. We found that bouton locations were not homogeneous throughout the axon and among brain regions. As our algorithm was able to generate whole-brain single-cell connectivity matrices from full morphology reconstruction datasets, we further found that non-homogeneous bouton locations have a significant impact on network wiring, including degree distribution, triad census, and community structure. By perturbing neuronal morphology, we further explored the link between anatomical details and network topology. In our in silico exploration, we found that dendritic and axonal tree span would have the greatest impact on network wiring, followed by synaptic contact deletion. Our results suggest that neuroanatomical details must be carefully addressed in studies of whole-brain networks at the single-cell level.
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spelling doaj.art-617e2d11a23f471291ef08a7cdd551d72024-03-07T05:27:22ZengElsevierCell Reports2211-12472024-03-01433113871Non-homogenous axonal bouton distribution in whole-brain single-cell neuronal networksPenghao Qian0Linus Manubens-Gil1Shengdian Jiang2Hanchuan Peng3New Cornerstone Science Laboratory, SEU-ALLEN Joint Center, State Key Laboratory of Digital Medical Engineering, Institute for Brain and Intelligence, Southeast University, Nanjing, Jiangsu 210096, China; School of Computer Science and Engineering, Southeast University, Nanjing, Jiangsu 210096, ChinaNew Cornerstone Science Laboratory, SEU-ALLEN Joint Center, State Key Laboratory of Digital Medical Engineering, Institute for Brain and Intelligence, Southeast University, Nanjing, Jiangsu 210096, China; Corresponding authorNew Cornerstone Science Laboratory, SEU-ALLEN Joint Center, State Key Laboratory of Digital Medical Engineering, Institute for Brain and Intelligence, Southeast University, Nanjing, Jiangsu 210096, China; School of Computer Science and Engineering, Southeast University, Nanjing, Jiangsu 210096, ChinaNew Cornerstone Science Laboratory, SEU-ALLEN Joint Center, State Key Laboratory of Digital Medical Engineering, Institute for Brain and Intelligence, Southeast University, Nanjing, Jiangsu 210096, China; Corresponding authorSummary: We examined the distribution of pre-synaptic contacts in axons of mouse neurons and constructed whole-brain single-cell neuronal networks using an extensive dataset of 1,891 fully reconstructed neurons. We found that bouton locations were not homogeneous throughout the axon and among brain regions. As our algorithm was able to generate whole-brain single-cell connectivity matrices from full morphology reconstruction datasets, we further found that non-homogeneous bouton locations have a significant impact on network wiring, including degree distribution, triad census, and community structure. By perturbing neuronal morphology, we further explored the link between anatomical details and network topology. In our in silico exploration, we found that dendritic and axonal tree span would have the greatest impact on network wiring, followed by synaptic contact deletion. Our results suggest that neuroanatomical details must be carefully addressed in studies of whole-brain networks at the single-cell level.http://www.sciencedirect.com/science/article/pii/S2211124724001992CP: Neuroscience
spellingShingle Penghao Qian
Linus Manubens-Gil
Shengdian Jiang
Hanchuan Peng
Non-homogenous axonal bouton distribution in whole-brain single-cell neuronal networks
Cell Reports
CP: Neuroscience
title Non-homogenous axonal bouton distribution in whole-brain single-cell neuronal networks
title_full Non-homogenous axonal bouton distribution in whole-brain single-cell neuronal networks
title_fullStr Non-homogenous axonal bouton distribution in whole-brain single-cell neuronal networks
title_full_unstemmed Non-homogenous axonal bouton distribution in whole-brain single-cell neuronal networks
title_short Non-homogenous axonal bouton distribution in whole-brain single-cell neuronal networks
title_sort non homogenous axonal bouton distribution in whole brain single cell neuronal networks
topic CP: Neuroscience
url http://www.sciencedirect.com/science/article/pii/S2211124724001992
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AT linusmanubensgil nonhomogenousaxonalboutondistributioninwholebrainsinglecellneuronalnetworks
AT shengdianjiang nonhomogenousaxonalboutondistributioninwholebrainsinglecellneuronalnetworks
AT hanchuanpeng nonhomogenousaxonalboutondistributioninwholebrainsinglecellneuronalnetworks