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The Next Wave of Stroma-Targeting Therapy in Pancreatic Cancer

Huocong Huang1, Rolf A Brekken2,3

  • 1Division of Surgical Oncology, Department of Surgery, and Hamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, Dallas, Texas.

Cancer Research
|January 17, 2019
PubMed

Insights

Halofuginone reduces pancreatic cancer stroma by inhibiting pancreatic stellate cell activation. This improves drug delivery and immune cell infiltration, enhancing cancer therapy effectiveness.

Area of Science:

  • Oncology
  • Immunology
  • Pharmacology

Background:

  • Pancreatic ductal adenocarcinoma (PDA) stroma impedes therapy and immune surveillance.
  • Pancreatic stellate cells (PSCs) drive PDA stroma formation through extracellular matrix (ECM) deposition.
  • Targeting PDA stroma is a potential therapeutic strategy.

Purpose of the Study:

  • To investigate the antifibrotic effects of halofuginone in PDA.
  • To determine if halofuginone modulates PSC activation and ECM deposition.
  • To assess the impact of halofuginone on drug delivery and immune cell infiltration in PDA.

Main Methods:

  • In vitro studies on pancreatic stellate cells.
  • Assessment of ECM component deposition (collagen, hyaluronic acid).
  • Evaluation of drug delivery and immune cell infiltration in a PDA model.

Main Results:

  • Halofuginone demonstrated potent antifibrotic activity by inhibiting PSC activation.
  • Reduced deposition of collagen and hyaluronic acid was observed.
  • Improved drug delivery and increased infiltration of immune-stimulatory myeloid cells and cytotoxic T cells were noted.

Conclusions:

  • Halofuginone effectively reduces PDA stroma by inhibiting PSC activation.
  • Stromal modification with halofuginone enhances anti-cancer immunity and therapeutic delivery.
  • Targeting the tumor stroma remains a promising strategy for improving PDA treatment efficacy.

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