Integrated multi-omics and single-cell analyses identify metabolic heterogeneity and therapeutic vulnerabilities in

Chuqiao Liu1, Cenkai Shen2, Yingtong Hou3

  • 1Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.

Abstract

Insights

Medullary thyroid cancer (MTC) exhibits metabolic heterogeneity. A new classification identifies a poor-prognosis subtype linked to glycosaminoglycan (GAGs) biosynthesis, enabling metabolite-driven prognostication for MTC.

Area of Science:

  • Oncology
  • Metabolomics
  • Cancer Biology

Background:

  • Medullary thyroid cancer (MTC) is an aggressive malignancy with few treatment options.
  • Metabolic reprogramming is a key cancer hallmark offering potential therapeutic targets.
  • Understanding MTC metabolism is crucial for developing novel management strategies.

Purpose of the Study:

  • To investigate metabolic heterogeneity in MTC.
  • To identify distinct metabolic subtypes of MTC.
  • To develop prognostic models based on metabolic profiles for precision medicine.

Main Methods:

  • RNA sequencing and untargeted metabolomic profiling of MTC samples.
  • Clustering analyses to identify metabolic subtypes, validated by immunohistochemistry, multiplex immunofluorescence, and single-cell RNA sequencing.
  • Deep learning approaches to create prognostic classifiers.

Main Results:

  • Three metabolic subtypes of MTC were identified.
  • The M3 subtype, associated with poor prognosis, showed increased glycosaminoglycan (GAGs) biosynthesis (chondroitin sulfate) and elevated CHSY1 expression.
  • M3 tumors exhibited enhanced epithelial-mesenchymal transition (EMT) signatures, with CHSY1 potentially promoting EMT via myofibroblast interactions. Prognostic models based on metabolites and genes effectively stratified patients by recurrence risk, driven by GAGs metabolism.

Conclusions:

  • MTC displays significant metabolic heterogeneity.
  • A novel metabolic classification system for MTC was proposed.
  • Metabolite-driven prognostication offers potential for precision management of MTC.

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