Gene therapy in skin: choosing the optimal viral vector

Area of Science:

• Dermatology
• Gene Therapy
• Virology

Background:

• The skin is an accessible site for gene therapy due to its involvement in numerous diseases.
• Viral vectors are commonly used for gene delivery, but their comparative efficacy in skin remains understudied.

Purpose of the Study:

• To evaluate and compare the gene transfer efficiency of different viral vectors in human skin cells.
• To determine the suitability of various viral vectors for short-term and long-term gene therapy applications in the skin.

Main Methods:

• The study assessed adenovirus serotype 5, adeno-associated virus types 2 and 5, MMLV-derived retrovirus, and human immunodeficiency virus-1-derived lentivirus.
• Gene vector activity was evaluated in human dermal fibroblasts and other skin cell lines.
• Transduction efficiency and reporter gene expression stability over cell passages were measured.

Main Results:

• Human immunodeficiency virus-1-based lentiviral vectors achieved over 90% transduction in all tested skin cell lines.
• Reporter gene expression from lentiviral vectors was maintained over multiple cell passages.
• Adenoviral and adeno-associated viral vectors showed rapidly declining gene activity over cell divisions.

Conclusions:

• Lentiviral vectors are optimal for sustained therapeutic gene expression in dermal fibroblasts and other skin cell types.
• Adenoviral or adeno-associated viral vectors may be advantageous for transient gene therapy strategies in skin.
• This comparative analysis guides the selection of appropriate viral vectors for specific gene therapy goals in dermatological applications.