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Updated: Sep 29, 2025

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Published on: April 5, 2018
SWI/SNF Chromatin Remodeling Enzymes in Melanoma
Megan R Dreier1, Ivana L de la Serna1
1Department of Cancer Biology, University of Toledo College of Medicine and Life Sciences, 3035 Arlington Ave, Toledo, OH 43614, USA.
Abstract:
Melanoma is an aggressive malignancy that arises from the transformation of melanocytes on the skin, mucosal membranes, and uvea of the eye. SWI/SNF chromatin remodeling enzymes are multi-subunit complexes that play important roles in the development of the melanocyte lineage and in the response to ultraviolet radiation, a key environmental risk factor for developing cutaneous melanoma. Exome sequencing has revealed frequent loss of function mutations in genes encoding SWI/SNF subunits in melanoma. However, some SWI/SNF subunits have also been demonstrated to have pro-tumorigenic roles in melanoma and to affect sensitivity to therapeutics. This review summarizes studies that have implicated SWI/SNF components in melanomagenesis and have evaluated how SWI/SNF subunits modulate the response to current therapeutics.
Insights
SWI/SNF chromatin remodeling enzymes are crucial in melanoma development and response to UV radiation. Mutations in these enzymes impact melanoma progression and treatment sensitivity, highlighting their complex role.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Melanoma arises from melanocyte transformation in skin, eyes, and mucosal membranes.
- SWI/SNF chromatin remodeling enzymes are vital for melanocyte development and UV radiation response.
- Ultraviolet radiation is a primary environmental risk factor for cutaneous melanoma.
Purpose of the Study:
- To review the role of SWI/SNF components in melanoma development (melanomagenesis).
- To evaluate how SWI/SNF subunits influence the effectiveness of current melanoma therapeutics.
- To summarize findings on both tumor-suppressive and pro-tumorigenic functions of SWI/SNF in melanoma.
Main Methods:
- Literature review of studies on SWI/SNF enzymes in melanoma.
- Analysis of exome sequencing data revealing SWI/SNF gene mutations in melanoma.
- Examination of research investigating SWI/SNF subunit roles in melanomagenesis and therapy response.
Main Results:
- Frequent loss-of-function mutations in SWI/SNF genes are observed in melanoma.
- Certain SWI/SNF subunits exhibit pro-tumorigenic roles in melanoma progression.
- SWI/SNF subunits significantly affect melanoma cell sensitivity to various therapeutic agents.
Conclusions:
- SWI/SNF chromatin remodelers have a dual role in melanoma, acting as both tumor suppressors and promoters.
- Understanding SWI/SNF function is critical for developing targeted melanoma therapies.
- Further research into SWI/SNF complexes may reveal new therapeutic strategies for melanoma treatment.
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