Systems biology-based approaches to summarize and identify novel genes and pathways associated with acute and chronic postsurgical pain

To employ systems biology–based machine learning to identify biologic processes over-represented with genetic variants (gene enrichment) implicated in post-surgical pain. Informed systems biology based integrative computational analyses. Pediatric research and teaching institution. Pubmed search (01...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Journal of clinical anesthesia 2020-06, Vol.62, p.109738-109738, Article 109738
Hauptverfasser: Chidambaran, Vidya, Ashton, Maria, Martin, Lisa J., Jegga, Anil G.
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:To employ systems biology–based machine learning to identify biologic processes over-represented with genetic variants (gene enrichment) implicated in post-surgical pain. Informed systems biology based integrative computational analyses. Pediatric research and teaching institution. Pubmed search (01/01/2001–10/31/2017) was performed to identify “training” genes associated with postoperative pain in humans. Candidate genes were identified and prioritized using Toppgene suite, based on functional enrichment using several gene ontology annotations, and curated gene sets associated with mouse phenotype–knockout studies. Computationally top-ranked candidate genes and literature-curated genes were included in pathway enrichment analyses. Hierarchical clustering was used to visualize select functional enrichment results between the two phenotypes. Literature review identified 38 training genes associated with postoperative pain and 31 with CPSP. We identified 2610 prioritized novel candidate genes likely associated with acute and chronic postsurgical pain, the top 10th percentile jointly enriched (p 0.05; Benjamini-Hochberg correction) several pathways, topmost being cAMP response element-binding protein and ion channel pathways. Heat maps demonstrated enrichment of inflammatory/drug metabolism processes in acute postoperative pain and immune mechanisms in CPSP. High interindividual variability in pain responses immediately after surgery and risk for CPSP suggests genetic susceptibility. Lack of large homogenous sample sizes have led to underpowered genetic association studies. Systems biology can be leveraged to integrate genetic-level data with biologic processes to generate prioritized candidate gene lists and understand novel biological pathways involved in acute postoperative pain and CPSP. Such data would be key to informing future polygenic studies with targeted genome wide profiling. This study demonstrates the utility of functional annotation - based prioritization and enrichment approaches and identifies novel genes and unique/shared biological processes involved in acute and chronic postoperative pain. Results provide framework for future targeted genetic profiling of CPSP risk, to enable preventive and therapeutic approaches. •Genome wide studies in post-surgical pain have been underpowered and heterogenous, rendering limited replication of results•Leveraging systems biology based enrichment approaches, we identified 2610 genes prioritized for acute a
ISSN:0952-8180
1873-4529
DOI:10.1016/j.jclinane.2020.109738