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Updated: Jul 14, 2026

Electroporation-Based Genetic Modification of Primary Human Pigment Epithelial Cells Using the Sleeping Beauty Transposon System
Published on: February 4, 2021
On the search for skin gene therapy strategies of xeroderma pigmentosum disease
Carlos F M Menck1, Melissa G Armelini, Keronninn M Lima-Bessa
1Dept. of Microbiology, Institute of Biomedical Sciences, University of Sao Paulo, Sao Paulo, SP 05508-900, Brazil. cfmmenck@usp.br
Abstract:
The introduction of genes through the skin has been an attractive and dynamic field of research in recent years. It gives the first gleam of hope in therapy for the human genetic diseases that mainly affect this tissue, such as patients that suffer from xeroderma pigmentosum, and who experience increased frequency of skin cancer. The first in vitro experiments were successful in correcting the genetic defects of cells from these patients, the ex vivo reconstruction of corrected cells has been achieved, and the skin of model animals has been treated resulting in cancer prevention. Up to now these efforts have been possible, thanks to the high efficiency of viral vectors that provide gene delivery and expression targeted to many of the different skin cells, including those with proliferative and pluripotent features, such as keratinocytes and epidermal cells of hair follicles. Moreover, progress with several other methodologies qualifies them as alternatives to be explored, in some cases in combination with viral vectors, for skin gene therapy in these patients. Exciting and encouraging new approaches promise benefits to xeroderma pigmentosum patients and their families, and open perspectives of new ways for interfering in gene driven metabolism in the skin.
Insights
Gene therapy offers new hope for genetic skin diseases like xeroderma pigmentosum. Research shows successful gene correction and cancer prevention in skin models, paving the way for patient treatments.
Area of Science:
- Dermatology
- Genetics
- Molecular Biology
Background:
- Genetic skin diseases, such as xeroderma pigmentosum, present significant therapeutic challenges.
- Xeroderma pigmentosum patients have an increased risk of skin cancer due to genetic defects.
- Gene therapy is emerging as a promising approach for treating these conditions.
Purpose of the Study:
- To explore the potential of gene therapy for treating genetic skin diseases.
- To evaluate the efficacy of gene delivery methods in skin cells.
- To investigate cancer prevention strategies for xeroderma pigmentosum.
Main Methods:
- In vitro gene correction of patient-derived cells.
- Ex vivo reconstruction of corrected skin cells.
- In vivo treatment of model animal skin using viral vectors for gene delivery.
- Exploration of alternative gene therapy methodologies.
Main Results:
- Successful correction of genetic defects in vitro.
- Demonstrated cancer prevention in treated animal skin models.
- Efficient gene delivery and expression in various skin cell types, including keratinocytes and hair follicle cells.
- Validation of viral vectors for targeted gene therapy.
Conclusions:
- Gene therapy holds significant promise for xeroderma pigmentosum patients.
- Viral vectors are effective tools for skin gene therapy.
- Advancements in gene therapy offer new avenues for managing genetic skin disorders and their associated risks.
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