Cited by 73Bioinformatics and Genomic NetworksGene Regulatory Network AnalysisSingle-cell and spatial transcriptomics

Reconstruction of Cell-type-Specific Interactomes at Single-Cell Resolution

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Mohammadi, Shahin, Davila-Velderrain, Jose, Kellis, Manolis·2019·Cell Systems

Abstract

The human interactome is instrumental in the systems-level study of the cell and the contextualization of disease-associated gene perturbations. However, reference organismal interactomes do not capture the cell-type-specific context in which proteins and modules preferentially act. Here, we introduce SCINET, a computational framework that reconstructs an ensemble of cell-type-specific interactomes by integrating a global, context-independent reference interactome with a single-cell gene-expression profile. SCINET addresses technical challenges of single-cell data by robustly imputing, transforming, and normalizing the initially noisy and sparse expression of data. Inferred cell-level gene interaction probabilities and group-level interaction strengths define cell-type-specific interactomes. We use SCINET to reconstruct and analyze interactomes of the major human brain and immune cell types, revealing specificity and modularity of perturbations associated with neurodegenerative, neuropsychiatric, and autoimmune disorders. We report cell-type interactomes for brain and immune cell types, together with the SCINET package.

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Authors
Mohammadi, S., Davila-Velderrain, J., & Kellis, M.
Affiliations
Broad Institute (US)
Corresponding author
Mohammadi, Shahin
Venue
Cell Systems
Publisher
Elsevier BV
Published
2019-12
Volume
9
Issue
6
Pages
559-568.e4
ISSN
2405-4712 (ISSN-L)
OpenAlex
W2990131011
Cited by
73
References
40
Citations by year
2026: 10 · 2025: 10 · 2024: 8 · 2023: 8 · 2022: 10 · 2021: 16 · 2020: 11
FWCI
3.06
Type
journal article
Language
en
Open access
Locations
  • Cell Systems (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • DSpace@MIT (Massachusetts Institute of Technology) (submittedVersion, cc-by-nc)
Funders
National Institutes of Health
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bioinformatics and Genomic Networks
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gene Regulatory Network Analysis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Single-cell and spatial transcriptomics
Keywords
human interactome, single-cell transcriptomics, SCINet, interaction strength, brain cell types, immune cell types, neurodegenerative diseases, neuropsychiatric disorders, autoimmune disease
MeSH terms
Algorithms, Female, Frontal Lobe, Humans, Male, Proteins, Computational Biology, Protein Interaction Mapping, Databases, Genetic, Systems Biology, Single-Cell Analysis

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