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Embryonic stem cells and potency to induce transplantation tolerance
1University of Iowa Hospitals and Clinics Clinics & VA Medical Center Iowa City, Department of Internal Medicine, 200 Hawkins Dr, IA 52242, Iowa City, USA. nicholas-zavazava@uiowa.edu
Expert Opinion on Biological Therapy
|April 30, 2003
Summary
Embryonic stem cells (ESC) show promise for inducing transplantation tolerance with low risk. Their unique properties may enable multilineage mixed chimaerism without immunosuppression, overcoming challenges in human organ transplantation.
Area of Science:
- Immunology
- Regenerative Medicine
- Transplantation Science
Background:
- Inducing transplantation tolerance is crucial for allograft survival.
- Rodent models show success, but human clinical protocols remain elusive.
- Established tolerance mechanisms like clonal deletion and anergy have limited clinical impact.
Purpose of the Study:
- To review the potential of embryonic stem cells (ESC) for inducing transplantation tolerance.
- To discuss the use of ESC for low-risk induction of multilineage mixed chimaerism.
- To evaluate the potency and drawbacks of ESC for clinical application.
Main Methods:
- Review of existing literature on ESC and transplantation tolerance.
- Analysis of ESC properties, including low immunogenicity and high plasticity.
- Discussion of chimaerism induction and its implications for immunosuppression.
Main Results:
- Hematopoietic chimaerism is a robust method for tolerance induction.
- Embryonic stem cells (ESC) offer a potential low-risk approach to chimaerism.
- ESC may facilitate tolerance without requiring immunosuppression.
Conclusions:
- Embryonic stem cells (ESC) present a promising avenue for achieving transplantation tolerance.
- ESC-based strategies could overcome the risks associated with traditional bone marrow transplantation.
- Further research is needed to explore the clinical utility of ESC for human transplantation.