Related Experiment Video
Updated: Mar 29, 2026

Stem Cell-Derived Viral Ag-Specific T Lymphocytes Suppress HBV Replication in Mice
Published on: September 25, 2019
T cell therapies-are T memory stem cells the answer?
Jacqueline K Flynn1, Paul R Gorry1
11 School of Applied Sciences and Program in Metabolism, Exercise and Disease, Health Initiatives Research Institute, RMIT University, Melbourne, Australia ; 2 Centre for Biomedical Research, Burnet Institute, Melbourne, Victoria, Australia ; 3 Department of Infectious Diseases, Monash University, Melbourne, Victoria, Australia ; 4 Department of Microbiology and Immunology, University of Melbourne, Parkville, Victoria, Australia.
Abstract:
T memory stem cells (TSCM) are the earliest developmental stage of memory T cells, displaying stem cell-like properties and exhibiting a gene profile between naive and central memory (CM) T cells. Their long-lifespan, robust proliferative potential and self-renewal capacity has generated much research and clinical interest particularly for therapeutic use. Here, we discuss recent findings published in Science Translational Medicine by Biasco and colleagues [2015 Feb 4;7(273):273ra13], which provided evidence for the persistence of TSCM in humans for up to 12 years after infusion of genetically modified lymphocytes, and we examine the implications for the development of novel immunotherapies using TSCM.
Insights
T memory stem cells (TSCM) persist in humans for over a decade after genetic modification. This finding highlights their potential for developing novel immunotherapies and cell-based treatments.
Area of Science:
- Immunology
- Cell Biology
- Stem Cell Research
Background:
- T memory stem cells (TSCM) represent the earliest stage of memory T cell development.
- TSCM possess stem cell-like properties, including self-renewal and robust proliferation.
- Their unique gene profile bridges naive and central memory T cells, making them of significant therapeutic interest.
Purpose of the Study:
- To discuss recent findings on the long-term persistence of human TSCM.
- To examine the implications of TSCM persistence for the development of novel immunotherapies.
- To highlight the therapeutic potential of TSCM in clinical applications.
Main Methods:
- Review of recent findings published in Science Translational Medicine by Biasco and colleagues.
- Analysis of data demonstrating the persistence of genetically modified TSCM in humans.
- Examination of the characteristics and potential applications of TSCM.
Main Results:
- Evidence for the persistence of TSCM in humans for up to 12 years post-infusion of genetically modified lymphocytes.
- Demonstration of the long-term viability and potential functionality of TSCM.
- Identification of TSCM as a promising cell population for therapeutic strategies.
Conclusions:
- TSCM exhibit remarkable long-term persistence in vivo.
- The sustained presence of TSCM supports their utility in developing advanced immunotherapies.
- Further research into TSCM biology is warranted for optimizing cell-based therapeutic approaches.
Related Concept Videos
Stem Cell Therapy for Tissue Regeneration
Types of Stem Cells used in Stem Cell Therapy
The two main cell...
Tumor Immunotherapy
Cell-mediated Immune Responses
T Cell Activation and Clonal Selection
Naive T cells that have not yet encountered an antigen express two primary CD...
T Cell Types and Functions
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Cells of the Adaptive Immune Response

