What question did this study set out to answer?

The aim is to evaluate the efficacy of KRAS inhibitors in treating appendiceal adenocarcinoma and uncover underlying mechanisms through single-cell profiling.

March 7, 2026Cancer Research

Abstract B024: KRAS inhibition is an effective therapy for appendiceal adenocarcinoma: Single cell profiling identifies tumor intrinsic and microenvironmental mechanisms unique to appendix cancer

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Authors

JSJohn Paul Shen SCSaikat ChowdhuryThe University of Texas MD Anderson Cancer Center IIIchiaki ItoThe University of Texas MD Anderson Cancer Center

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Implication

Single cell profiling reveals tumor and microenvironment mechanisms in appendiceal adenocarcinoma, highlighting the benefits of KRAS inhibitors.

Key Points

The aim is to evaluate the efficacy of KRAS inhibitors in treating appendiceal adenocarcinoma and uncover underlying mechanisms through single-cell profiling.
Evaluated five appendiceal adenocarcinoma patients treated with KRAS inhibitors.
Utilized KRAS mutant organoid and patient-derived xenograft models.
Employed high-content imaging, IHC, RNA-seq, and RPPA for analysis.
Conducted pathologic evaluation and survival experiments in mouse models.
All patients exhibited biochemical responses; one attained a complete response (CR).
Significant tumor growth reduction was observed in models treated with MRTX1133 and RMC-6236.
Inhibition of the RAS-MEK-ERK pathway was confirmed with downregulation of specific proteins.
Transition of cells associated with epithelial-mesenchymal transition (EMT) was inhibited by KRAS suppression.

Cite This Study

Shen et al. (2026) studied this question.

synapsesocial.com/papers/69abc2dc5af8044f7a4ec467 https://doi.org/10.1158/1538-7445.rasoncother26-b024

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Implication

Single cell profiling reveals tumor and microenvironment mechanisms in appendiceal adenocarcinoma, highlighting the benefits of KRAS inhibitors.

Abstract B024: KRAS inhibition is an effective therapy for appendiceal adenocarcinoma: Single cell profiling identifies tumor intrinsic and microenvironmental mechanisms unique to appendix cancer

Discussion

Member takes

Implication

Key Points

Cite This Study

Abstract B024: KRAS inhibition is an effective therapy for appendiceal adenocarcinoma: Single cell profiling identifies tumor intrinsic and microenvironmental mechanisms unique to appendix cancer

Discussion

Member takes

Implication

Key Points

Cite This Study

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