Alantolactone inhibits T-cell lymphoma progression by suppressing CD47 expression via the PI3K/AKT and ERK signaling

Xiaodong Li1,2, Ningbo Pang3, Yingcong Chen1,2

  • 1Precision Medicine Center, The Affiliated Lihuili Hospital of Ningbo University, 57 Xingning Road, Ningbo, 315000, China.

Insights

Alantolactone (ATL) inhibits T-cell lymphoma (TCL) growth and enhances chemotherapy sensitivity. This compound shows potential for TCL immunotherapy by promoting macrophage phagocytosis.

Area of Science:

  • Oncology
  • Immunology
  • Pharmacology

Background:

  • T-cell lymphoma (TCL) is a significant clinical challenge with unclear pathogenesis and limited effective treatments.
  • Alantolactone (ATL), a semi-terpene lactone, has shown therapeutic potential in other conditions but its role in TCL is unexplored.

Purpose of the Study:

  • To investigate the anti-cancer effects of Alantolactone (ATL) on T-cell lymphoma (TCL).
  • To explore the underlying mechanisms of ATL's action in TCL, including its impact on signaling pathways and drug sensitivity.

Main Methods:

  • In vitro studies on TCL cell proliferation, migration, and apoptosis.
  • In vivo xenograft models to assess anti-tumor efficacy and toxicity.
  • Multi-omics analysis to elucidate molecular mechanisms, including signaling pathway regulation and CD47 expression.

Main Results:

  • ATL significantly inhibited TCL cell proliferation and migration while inducing apoptosis in vitro.
  • ATL demonstrated significant anti-tumor effects in vivo with no obvious toxicity.
  • ATL enhanced TCL cell sensitivity to decitabine and other chemotherapeutic agents.
  • Mechanistically, ATL suppressed PI3K/AKT and ERK signaling, downregulating CD47 via c-Myc, thereby enhancing macrophage phagocytosis.

Conclusions:

  • Alantolactone (ATL) exhibits potent anti-TCL activity both in vitro and in vivo.
  • ATL holds promise as a novel therapeutic agent for T-cell lymphoma, potentially in combination therapies and immunotherapy.

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