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.

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 Regeneration01:21

Stem Cell Therapy for Tissue Regeneration

Stem cell therapy is a method used in regenerative medicine to repair and restore function to damaged tissues and organs. Stem cells have the potential to proliferate and differentiate into various tissue types, making them ideal candidates for tissue regeneration. For example, hematopoietic stem cell transplants are commonly used in blood cancer treatment to replenish damaged bone marrow and restore healthy blood cells.
Types of Stem Cells used in Stem Cell Therapy
The two main cell...
4.9K
Tumor Immunotherapy01:27

Tumor Immunotherapy

Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
2.2K
Cell-mediated Immune Responses01:40

Cell-mediated Immune Responses

Overview
86.3K
T Cell Activation and Clonal Selection01:22

T Cell Activation and Clonal Selection

T cells are integral to our adaptive immune system, recognizing and effectively responding to foreign antigens. T cell activation and clonal selection are pivotal in orchestrating this immune response. This article elucidates these mechanisms, detailing the roles of cluster of differentiation (CD) markers, major histocompatibility complex (MHC) molecules, costimulatory signals, and the process of clonal selection.
Naive T cells that have not yet encountered an antigen express two primary CD...
17.3K
T Cell Types and Functions01:24

T Cell Types and Functions

When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
3.3K
Cells of the Adaptive Immune Response01:23

Cells of the Adaptive Immune Response

The T and B lymphocytes of the adaptive immune system develop from common lymphoid progenitor cells in the bone marrow. These progenitors give rise to precursors that eventually develop into both T and B lymphocytes. As these precursors mature, they gain the ability to detect and respond to foreign antigens in the body, a process known as immunocompetence. Additionally, these precursors acquire self-tolerance, a process that ensures they do not react to self-antigens. This intricate system...
10.0K