Impact of sleep deprivation on colon cancer: Unraveling the KynA-P4HA2-HIF-1α axis in tumor lipid metabolism and metastasis
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View abstract on PubMed
Summary
This summary is machine-generated.Sleep deprivation worsens colon cancer liver metastasis by impairing lipolysis and increasing lipid accumulation. Kynurenic acid (KynA) supplementation reverses this effect, offering a potential treatment strategy.
Area Of Science
- Oncology
- Metabolomics
- Molecular Biology
Background
- Sleep deprivation is linked to cancer progression.
- Colon cancer patients frequently experience sleep issues, impacting mortality through liver metastases.
- The specific link between sleep deprivation and colon cancer liver metastasis remains unclear.
Purpose Of The Study
- To investigate the effect of sleep deprivation on colon cancer liver metastasis.
- To identify key mediators involved in this process.
- To elucidate the underlying molecular mechanisms.
Main Methods
- A mouse model of sleep deprivation and colon cancer liver metastasis was established.
- Untargeted metabolomics and transcriptomics were used to identify key molecules.
- ChIP, co-IP, ubiquitination, and phenotyping experiments were performed to explore mechanisms.
Main Results
- Sleep deprivation significantly promoted liver metastasis in colon cancer models.
- Sleep deprivation led to increased lipid accumulation and decreased Kynurenic acid (KynA) production.
- KynA demonstrated inhibitory effects on colon cancer progression in vitro and reversed sleep deprivation's effects in vivo.
Conclusions
- Sleep deprivation promotes colon cancer liver metastasis by impairing KynA-mediated intracellular lipolysis, causing lipid droplet accumulation.
- KynA plays a crucial role in regulating lipolysis and colon cancer progression.
- Targeting this pathway presents a potential therapeutic strategy for colon cancer treatment.
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