Inferring a spatial code of cell-cell interactions across a whole animal body.

Cell-cell interactions shape cellular function and ultimately organismal phenotype. Interacting cells can sense their mutual distance using combinations of ligand-receptor pairs, suggesting the existence of a spatial code, i.e., signals encoding spatial properties of cellular organization. However,...

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Main Authors: Erick Armingol, Abbas Ghaddar, Chintan J Joshi, Hratch Baghdassarian, Isaac Shamie, Jason Chan, Hsuan-Lin Her, Samuel Berhanu, Anushka Dar, Fabiola Rodriguez-Armstrong, Olivia Yang, Eyleen J O'Rourke, Nathan E Lewis
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2022-11-01
Series:PLoS Computational Biology
Online Access:https://doi.org/10.1371/journal.pcbi.1010715
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author Erick Armingol
Abbas Ghaddar
Chintan J Joshi
Hratch Baghdassarian
Isaac Shamie
Jason Chan
Hsuan-Lin Her
Samuel Berhanu
Anushka Dar
Fabiola Rodriguez-Armstrong
Olivia Yang
Eyleen J O'Rourke
Nathan E Lewis
author_facet Erick Armingol
Abbas Ghaddar
Chintan J Joshi
Hratch Baghdassarian
Isaac Shamie
Jason Chan
Hsuan-Lin Her
Samuel Berhanu
Anushka Dar
Fabiola Rodriguez-Armstrong
Olivia Yang
Eyleen J O'Rourke
Nathan E Lewis
author_sort Erick Armingol
collection DOAJ
description Cell-cell interactions shape cellular function and ultimately organismal phenotype. Interacting cells can sense their mutual distance using combinations of ligand-receptor pairs, suggesting the existence of a spatial code, i.e., signals encoding spatial properties of cellular organization. However, this code driving and sustaining the spatial organization of cells remains to be elucidated. Here we present a computational framework to infer the spatial code underlying cell-cell interactions from the transcriptomes of the cell types across the whole body of a multicellular organism. As core of this framework, we introduce our tool cell2cell, which uses the coexpression of ligand-receptor pairs to compute the potential for intercellular interactions, and we test it across the Caenorhabditis elegans' body. Leveraging a 3D atlas of C. elegans' cells, we also implement a genetic algorithm to identify the ligand-receptor pairs most informative of the spatial organization of cells across the whole body. Validating the spatial code extracted with this strategy, the resulting intercellular distances are negatively correlated with the inferred cell-cell interactions. Furthermore, for selected cell-cell and ligand-receptor pairs, we experimentally confirm the communicatory behavior inferred with cell2cell and the genetic algorithm. Thus, our framework helps identify a code that predicts the spatial organization of cells across a whole-animal body.
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spelling doaj.art-fbf28cea235048f493ac6e76bf2459d12022-12-22T04:21:34ZengPublic Library of Science (PLoS)PLoS Computational Biology1553-734X1553-73582022-11-011811e101071510.1371/journal.pcbi.1010715Inferring a spatial code of cell-cell interactions across a whole animal body.Erick ArmingolAbbas GhaddarChintan J JoshiHratch BaghdassarianIsaac ShamieJason ChanHsuan-Lin HerSamuel BerhanuAnushka DarFabiola Rodriguez-ArmstrongOlivia YangEyleen J O'RourkeNathan E LewisCell-cell interactions shape cellular function and ultimately organismal phenotype. Interacting cells can sense their mutual distance using combinations of ligand-receptor pairs, suggesting the existence of a spatial code, i.e., signals encoding spatial properties of cellular organization. However, this code driving and sustaining the spatial organization of cells remains to be elucidated. Here we present a computational framework to infer the spatial code underlying cell-cell interactions from the transcriptomes of the cell types across the whole body of a multicellular organism. As core of this framework, we introduce our tool cell2cell, which uses the coexpression of ligand-receptor pairs to compute the potential for intercellular interactions, and we test it across the Caenorhabditis elegans' body. Leveraging a 3D atlas of C. elegans' cells, we also implement a genetic algorithm to identify the ligand-receptor pairs most informative of the spatial organization of cells across the whole body. Validating the spatial code extracted with this strategy, the resulting intercellular distances are negatively correlated with the inferred cell-cell interactions. Furthermore, for selected cell-cell and ligand-receptor pairs, we experimentally confirm the communicatory behavior inferred with cell2cell and the genetic algorithm. Thus, our framework helps identify a code that predicts the spatial organization of cells across a whole-animal body.https://doi.org/10.1371/journal.pcbi.1010715
spellingShingle Erick Armingol
Abbas Ghaddar
Chintan J Joshi
Hratch Baghdassarian
Isaac Shamie
Jason Chan
Hsuan-Lin Her
Samuel Berhanu
Anushka Dar
Fabiola Rodriguez-Armstrong
Olivia Yang
Eyleen J O'Rourke
Nathan E Lewis
Inferring a spatial code of cell-cell interactions across a whole animal body.
PLoS Computational Biology
title Inferring a spatial code of cell-cell interactions across a whole animal body.
title_full Inferring a spatial code of cell-cell interactions across a whole animal body.
title_fullStr Inferring a spatial code of cell-cell interactions across a whole animal body.
title_full_unstemmed Inferring a spatial code of cell-cell interactions across a whole animal body.
title_short Inferring a spatial code of cell-cell interactions across a whole animal body.
title_sort inferring a spatial code of cell cell interactions across a whole animal body
url https://doi.org/10.1371/journal.pcbi.1010715
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