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Updated: Jul 15, 2026
Transduction of Human Cells with Polymer-complexed Ecotropic Lentivirus for Enhanced Biosafety
Published on: July 24, 2011
Use of a lentivirus/VSV pseudotype virus for highly efficient genetic redirection of human peripheral blood
Anthony Simmons1, Kristina Jantz
1Division of Virology, Children's Hospital, 301 University Boulevard, Galveston, Texas 77555-0372, USA. ansimmon@utmb.edu
Abstract:
Genetic redirection of lymphocytes that have been engineered to recognize antigens other than those originally programmed by their rearranged germlines is a potentially powerful immunotherapeutic tool. The rationale for the protocol described here is that many cancers and persistent or latent viruses have developed strikingly similar mechanisms of evading attack by host immunity that can often be overcome by redirection of host lymphocytes using chimeric T-cell receptor (chTCR) genes. However, for human peripheral blood lymphocytes (PBLs), this is generally regarded as a technically demanding procedure with unacceptably low efficiency using either contemporary transfection methods or retroviral transduction. One of the main difficulties with retroviruses is their reliance on rapidly dividing cells for integration of their genomes carrying the desired chTCR. Here we describe a highly efficient protocol that uses a lentivirus/vesicular stomatitis virus pseudotyped virus to engineer CD3/CD28-stimulated human peripheral blood cells (i.e., primarily T cells), with near 100% efficiency.
Insights
This study presents a highly efficient lentivirus method for genetically engineering human T cells to express chimeric T-cell receptors (chTCRs). This breakthrough overcomes previous technical challenges, offering a powerful tool for cancer immunotherapy.
Area of Science:
- Immunology
- Gene Therapy
- Oncology
Background:
- Cancer and persistent viruses evade host immunity through similar mechanisms.
- Redirecting host lymphocytes with chimeric T-cell receptors (chTCRs) can overcome immune evasion.
- Engineering human peripheral blood lymphocytes (PBLs) with chTCRs is technically challenging and inefficient with current methods.
Purpose of the Study:
- To develop a highly efficient protocol for engineering human peripheral blood cells with chimeric T-cell receptor (chTCR) genes.
- To overcome the limitations of existing transfection and retroviral transduction methods for PBLs.
Main Methods:
- Utilized a lentivirus/vesicular stomatitis virus pseudotyped virus for genetic engineering.
- Targeted CD3/CD28-stimulated human peripheral blood cells (primarily T cells).
Main Results:
- Achieved near 100% efficiency in engineering human peripheral blood cells.
- Overcame the reliance of retroviruses on rapidly dividing cells for genome integration.
Conclusions:
- The described lentivirus-based protocol offers a highly efficient method for chTCR gene transfer into human T cells.
- This advancement holds significant potential for developing novel immunotherapies against cancer and viral infections.
