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February 5, 2026Orthopaedic Proceedings

Investigating the Role of Sting Signalling in Immune and Non-Immune Cellular Compartments on Survival Phenotypes in the Kp Model of Undifferentiated Pleomorphic Sarcoma

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Authors

KHK-M. HildebrandKHK. HildebrandKNK. Narta

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Implication

Investigates STING signaling's role in tumor clearance in undifferentiated pleomorphic sarcoma, suggesting implications for therapy personalization.

Key Points

  • The primary aim is to understand the role of STING signaling in various cell types within the tumor microenvironment of undifferentiated pleomorphic sarcoma and its impact on tumor survival outcomes.
  • Used CRISPR-Cas9 to knockout Sting1 in UPS cell lines.
  • Engrafted modified UPS cells in C57Bl/6 mice and treated with STING agonists DMXAA and E7766.
  • Performed single cell RNA sequencing on tumors after treatment to analyze STING signaling engagement.
  • Identified immune populations and monitored ISG scores to evaluate the STING signaling effect.
  • STING knockout does not impede tumor clearance with DMXAA or E7766.
  • Neutrophils are the predominant cell type responsive to DMXAA and E7766 treatments at both time points.
  • ISG scores showed sustained elevation in myeloid cells treated with DMXAA or E7766, contrasting with CDN.
  • Myeloid lineage involvement in STING signaling may play a critical role in promoting tumor clearance.

Cite This Study

Hildebrand et al. (2026) studied this question.

synapsesocial.com/papers/6984359ef1d9ada3c1fb4a9chttps://doi.org/10.1302/1358-992x.2026.2.022
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Short-term and long-term sting activation elicit divergent cellular responses in distinct hematopoietic populations in chronic myelomonocytic leukemia2025
  2. 2Abstract LB114: STING licensing of type I dendritic cells potentiates antitumor immunity2024
  3. 3STING inhibits viral lytic reactivation and cell growth in primary effusion lymphoma2026
  4. 4Effect of intrinsic STING of CD8+T cells on self-metabolic reprogramming and anti-tumor effects.2024 · 1 citations
  5. 5Cell Selective STING‐Activating Polysaccharide Immunomodulators for Cancer Therapy2026