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Related Concept Videos

RNA-seq03:21

RNA-seq

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RNA sequencing, or RNA-Seq, is a high-throughput sequencing technology used to study the transcriptome of a cell. Transcriptomics helps to interpret the functional elements of a genome and identify the molecular constituents of an organism. Additionally, it also helps in understanding the development of an organism and the occurrence of diseases. 
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while...
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In Silico Drug Repurposing in Multiple Sclerosis Using scRNA-Seq Data.

Andrey Shevtsov1, Mikhail Raevskiy2,3, Alexey Stupnikov4,5

  • 1Institute of Bioengineering, Research Center of Biotechnology, Russian Academy of Science, 117312 Moscow, Russia.

International Journal of Molecular Sciences
|January 21, 2023
PubMed
Summary

Researchers identified key immune pathways activated in multiple sclerosis (MS). They found potential drugs, including FDA-approved Mitoxantrone, that could reverse these MS-related immune cell changes.

Keywords:
LINCS L1000connectivity mappingdrug repositioningmultiple sclerosisscRNA sequencing

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Area of Science:

  • Immunology
  • Neuroscience
  • Genomics

Background:

  • Multiple sclerosis (MS) is a chronic autoimmune disease affecting the central nervous system, with no known cure.
  • Current treatments aim to slow disease progression and manage symptoms.
  • Single-cell transcriptomics offers detailed insights into immune cell behavior in MS pathogenesis.

Purpose of the Study:

  • To identify activated immune pathways in multiple sclerosis using single-cell RNA sequencing data.
  • To explore drug repositioning strategies by targeting identified pathways for potential MS therapies.

Main Methods:

  • Analysis of public single-cell RNA sequencing data from peripheral blood mononuclear cells (PBMC) and cerebrospinal fluid (CSF) of MS patients and controls.
  • Identification of significantly activated biological pathways in immune cells from MS patients.
  • Screening for small molecules and existing drugs capable of reversing observed transcriptomic changes.

Main Results:

  • Activation of AIM2 inflammasome, SMAD2/3 signaling, and complement pathways identified in MS immune cells (PBMC and CSF).
  • Several small molecules (e.g., AG14361, FGIN-1-27, CA-074, ARP 101, Flunisolide, JAK3 Inhibitor VI) detected as potential modulators of MS-related transcriptomic signatures.
  • The FDA-approved MS drug Mitoxantrone was identified among the candidate molecules, validating the drug repositioning approach.

Conclusions:

  • Specific immune pathways are dysregulated in MS, offering therapeutic targets.
  • Drug repositioning based on transcriptomic signatures is a viable strategy for identifying novel MS treatments.
  • The identified small molecules and Mitoxantrone show promise for modulating immune responses in MS.