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Published on: May 30, 2012

Neferine-Targeted Inhibition of TrxR1 Triggers Apoptosis Through Disrupting Redox Homeostasis in Pancreatic Cancer

Xiaoqing Yuan1, Si Jiang1, Guanqing Zhang1

  • 1School of Pharmacy, the Key Laboratory of Prescription Effect and Clinical Evaluation of State Administration of Traditional Chinese Medicine of China, Shandong Medical and Pharmaceutical University, Yantai, P.R. China.

Molecular Carcinogenesis
|August 1, 2026
PubMed

Insights

Neferine (Nef) inhibits thioredoxin reductase 1 (TrxR1), a key factor in pancreatic cancer. This novel mechanism reduces tumor growth by increasing reactive oxygen species and triggering apoptosis, offering a potential new therapy.

Area of Science:

  • Oncology
  • Molecular Biology
  • Biochemistry

Background:

  • Overactivation of thioredoxin reductase 1 (TrxR1) is linked to tumor development.
  • Pancreatic cancer remains a significant health challenge with limited therapeutic options.

Purpose of the Study:

  • To investigate the anti-tumor efficacy of neferine (Nef) in pancreatic cancer.
  • To elucidate the underlying mechanisms of Nef's action, specifically its targeting of TrxR1.

Main Methods:

  • In vitro assays to assess TrxR1 inhibition and reactive oxygen species (ROS) generation by Nef.
  • Mitochondrial function assays, DNA damage assessment, and apoptosis pathway analysis.
  • In vivo studies using a nude mouse xenograft model and bioinformatic analysis of TrxR1 expression.

Main Results:

  • Neferine directly inhibits TrxR1 enzymatic activity, causing mitochondrial ROS accumulation.
  • Nef induces mitochondrial dysfunction, DNA damage, and apoptosis in pancreatic cancer cells.
  • ROS scavenger N-acetylcysteine (NAC) reversed Nef's effects; TrxR1 knockdown enhanced Nef's efficacy.
  • Nef suppressed tumor growth in vivo, and elevated TrxR1 expression correlated with poor prognosis.

Conclusions:

  • Neferine is a novel TrxR1 inhibitor with significant anti-pancreatic cancer activity.
  • Targeting TrxR1 with Nef presents a promising therapeutic strategy for pancreatic cancer.
Keywords:
neferinepancreatic cancerreactive oxygen speciesredox homeostasisthioredoxin reductase 1

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