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April 5, 2026Cancer Research

Abstract 804: Distinct cellular phenotypes and spatial neighborhoods constitute the heterogeneous microenvironment of desmoplastic small round cell tumor.

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Authors

KMKevin A. MurgasJFJiaqian FanDSDiana Shamsutdinova

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Overview

Reveals distinct cellular environments in desmoplastic small round cell tumor, suggesting novel therapeutic targets for treatment.

Key Points

  • To elucidate the cellular diversity and spatial organization within desmoplastic small round cell tumor samples.
  • Constructed a tissue microarray with over 260 DSRCT specimens from 63 patients.
  • Utilized multiplexed immunofluorescence imaging with a 20-antibody panel for cellular mapping.
  • Applied image analysis and clustering techniques to analyze over 800,000 cells.
  • Examined tumor morphologies and characterized cellular neighborhoods.
  • Significant inter- and intra-tumoral heterogeneity identified.
  • Various tumor nest architectures and stromal densities observed.
  • Distinct cellular phenotypes with variable marker expression found.
  • Spatial arrangements correlated with clinical outcomes.

Cite This Study

Murgas et al. (2026) studied this question.

synapsesocial.com/papers/69d1fd9ca79560c99a0a3c0bhttps://doi.org/10.1158/1538-7445.am2026-804
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