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Updated: Feb 5, 2026

Visualization of Endoplasmic Reticulum Subdomains in Cultured Cells
Published on: February 18, 2014
Induction of endoplasmic reticulum stress as a strategy for melanoma therapy: is there a future?
David S Hill1,2,1,2, Penny E Lovat2,2, Nikolas K Haass1,3,4,1,3,4
1The Centenary Institute, Newtown, New South Wales, Australia.
Abstract:
Melanoma cells employ several survival strategies, including induction of the unfolded protein response, which mediates resistance to endoplasmic reticulum (ER) stress-induced apoptosis. Activation of oncogenes specifically suppresses ER stress-induced apoptosis, while upregulation of ER chaperone proteins and antiapoptotic BCL-2 family members increases the protein folding capacity of the cell and the threshold for the induction of ER stress-induced apoptosis, respectively. Modulation of unfolded protein response signaling, inhibition of the protein folding machinery and/or active induction of ER stress may thus represent potential strategies for the therapeutic management of melanoma. To this aim, the present article focuses on the current understanding of how melanoma cells avoid or overcome ER stress-induced apoptosis, as well as therapeutic strategies through which to harness ER stress for therapeutic benefit.
Insights
Melanoma cells resist apoptosis by activating the unfolded protein response (UPR) and increasing protein folding capacity. Targeting UPR and endoplasmic reticulum (ER) stress offers potential melanoma therapies.
Area of Science:
- Oncology
- Cell Biology
- Molecular Biology
Background:
- Melanoma cells exhibit resistance to apoptosis.
- Endoplasmic reticulum (ER) stress can trigger apoptosis.
- The unfolded protein response (UPR) is a key survival mechanism in cancer cells.
Purpose of the Study:
- To review how melanoma cells evade ER stress-induced apoptosis.
- To explore therapeutic strategies targeting ER stress in melanoma.
Main Methods:
- Literature review of cellular survival mechanisms in melanoma.
- Analysis of UPR signaling pathways.
- Examination of therapeutic interventions targeting ER stress.
Main Results:
- Melanoma cells utilize UPR to resist ER stress-induced apoptosis.
- Oncogene activation suppresses apoptosis.
- Upregulation of ER chaperones and BCL-2 family proteins enhances cell survival.
Conclusions:
- Modulating UPR signaling and inducing ER stress are potential therapeutic strategies for melanoma.
- Targeting protein folding machinery and ER stress pathways may offer new treatment avenues.
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