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Updated: Dec 9, 2025

Evaluating Autophagy Levels in Two Different Pancreatic Cell Models Using LC3 Immunofluorescence
Published on: April 28, 2023
Autophagy as a therapeutic target in pancreatic cancer
Max Piffoux1,2,3, Erwan Eriau4, Philippe A Cassier5,6
1Department of Medical Oncology, Centre Léon Bérard, Lyon, France.
Abstract:
Pancreatic ductal adenocarcinoma (PDAC) is characterised by early metastasis and resistance to anti-cancer therapy, leading to an overall poor prognosis. Despite continued research efforts, no targeted therapy has yet shown meaningful efficacy in PDAC; mutations in the oncogene KRAS and the tumour suppressor TP53, which are the most common genomic alterations in PDAC, have so far shown poor clinical actionability. Autophagy, a conserved process allowing cells to recycle altered or unused organelles and cellular components, has been shown to be upregulated in PDAC and is implicated in resistance to both cytotoxic chemotherapy and targeted therapy. Autophagy is thus regarded as a potential therapeutic target in PDAC and other cancers. Although the molecular mechanisms of autophagy activation in PDAC are only beginning to emerge, several groups have reported interesting results when combining inhibitors of the extracellular-signal-regulated kinase/mitogen-activated protein kinase pathway and inhibitors of autophagy in models of PDAC and other KRAS-driven cancers. In this article, we review the existing preclinical data regarding the role of autophagy in PDAC, as well as results of relevant clinical trials with agents that modulate autophagy in this cancer.
Insights
Pancreatic cancer (PDAC) shows poor outcomes due to metastasis and therapy resistance. Targeting autophagy, a cellular recycling process, alongside other pathways, may offer new therapeutic strategies for this challenging disease.
Area of Science:
- Oncology
- Cellular Biology
- Cancer Therapeutics
Background:
- Pancreatic ductal adenocarcinoma (PDAC) is marked by early metastasis and resistance to therapies.
- Common genetic alterations like KRAS and TP53 mutations in PDAC have limited targeted treatment options.
- Autophagy, a cellular degradation process, is upregulated in PDAC and linked to treatment resistance.
Purpose of the Study:
- To review preclinical data on autophagy's role in PDAC.
- To examine clinical trial results of autophagy-modulating agents in PDAC.
- To explore potential therapeutic strategies combining autophagy inhibitors with other pathway inhibitors.
Main Methods:
- Review of existing preclinical studies on autophagy in PDAC.
- Analysis of clinical trial data for agents targeting autophagy in pancreatic cancer.
- Exploration of combined therapeutic approaches, including MEK/MAPK pathway inhibitors.
Main Results:
- Autophagy is upregulated in PDAC and contributes to resistance against chemotherapy and targeted treatments.
- Preclinical studies show promise in combining autophagy inhibitors with MEK/MAPK pathway inhibitors in KRAS-driven cancers.
- Clinical trials investigating autophagy modulators in PDAC are ongoing, with preliminary data guiding further research.
Conclusions:
- Autophagy represents a potential therapeutic target for pancreatic cancer.
- Combining autophagy inhibition with other targeted therapies, particularly in KRAS-mutated PDAC, warrants further investigation.
- Continued research into the molecular mechanisms of autophagy in PDAC is crucial for developing effective treatments.
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