Nature Communications (Jun 2023)

The proteomic landscape of soft tissue sarcomas

  • Jessica Burns,
  • Christopher P. Wilding,
  • Lukas Krasny,
  • Xixuan Zhu,
  • Madhumeeta Chadha,
  • Yuen Bun Tam,
  • Hari PS,
  • Aswanth H. Mahalingam,
  • Alexander T. J. Lee,
  • Amani Arthur,
  • Nafia Guljar,
  • Emma Perkins,
  • Valeriya Pankova,
  • Andrew Jenks,
  • Vanessa Djabatey,
  • Cornelia Szecsei,
  • Frank McCarthy,
  • Chanthirika Ragulan,
  • Martina Milighetti,
  • Theodoros I. Roumeliotis,
  • Stephen Crosier,
  • Martina Finetti,
  • Jyoti S. Choudhary,
  • Ian Judson,
  • Cyril Fisher,
  • Eugene F. Schuster,
  • Anguraj Sadanandam,
  • Tom W. Chen,
  • Daniel Williamson,
  • Khin Thway,
  • Robin L. Jones,
  • Maggie C. U. Cheang,
  • Paul H. Huang

DOI
https://doi.org/10.1038/s41467-023-39486-2
Journal volume & issue
Vol. 14, no. 1
pp. 1 – 17

Abstract

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Abstract Soft tissue sarcomas (STS) are rare and diverse mesenchymal cancers with limited treatment options. Here we undertake comprehensive proteomic profiling of tumour specimens from 321 STS patients representing 11 histological subtypes. Within leiomyosarcomas, we identify three proteomic subtypes with distinct myogenesis and immune features, anatomical site distribution and survival outcomes. Characterisation of undifferentiated pleomorphic sarcomas and dedifferentiated liposarcomas with low infiltrating CD3 + T-lymphocyte levels nominates the complement cascade as a candidate immunotherapeutic target. Comparative analysis of proteomic and transcriptomic profiles highlights the proteomic-specific features for optimal risk stratification in angiosarcomas. Finally, we define functional signatures termed Sarcoma Proteomic Modules which transcend histological subtype classification and show that a vesicle transport protein signature is an independent prognostic factor for distant metastasis. Our study highlights the utility of proteomics for identifying molecular subgroups with implications for risk stratification and therapy selection and provides a rich resource for future sarcoma research.