Lentiviral-Mediated Systemic RNA Interference In Vivo

Area of Science:

• Molecular Biology
• Gene Therapy
• Immunology

Background:

• Short hairpin RNA (shRNA)-encoding lentivirus is a key tool for gene manipulation in preclinical research.
• Lentivirus efficiently transduces immune and hematopoietic stem cells, crucial for autoimmune disease gene therapy.
• Gene manipulation of these target cells is challenging with conventional methods.

Purpose of the Study:

• To introduce the systemic in vivo application of lentivirus for gene therapy.
• To provide methods for viral quantification and delivery.
• To outline techniques for assessing gene integration in target cells.

Main Methods:

• Production of concentrated shRNA-encoding lentiviral particles (described in previous chapters).
• Systemic in vivo administration of lentivirus.
• Viral quantification before injection and quantification of integrated provirus post-injection.

Main Results:

• Demonstration of successful systemic in vivo lentiviral application.
• Quantification of viral load and proviral integration in preclinical models.
• Validation of lentiviral transduction efficiency in immune and hematopoietic stem cells.

Conclusions:

• Systemic in vivo lentiviral application is a feasible and effective method for gene manipulation.
• This technique holds significant promise for advancing gene therapy in autoimmune diseases.
• The described methods enable robust assessment of lentiviral gene transfer efficacy.