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The human immune system in hu-PBL-SCID mice
M Tary-Lehmann1, A Saxon, P V Lehmann
1Dept of Pathology, School of Medicine, Case Western Reserve University, Cleveland, OH 44106-4943, USA.
Immunology Today
|November 1, 1995
Summary
Severe combined immunodeficiency (SCID) mice grafted with human cells create functional human immune systems. However, these hu-PBL-SCID chimeras eventually become nonfunctional due to immune cell selection.
Area of Science:
- Immunology
- Transplantation Biology
Background:
- Severe combined immunodeficiency (SCID) mice are used as models for human immune system research.
- Human peripheral blood lymphocytes can be grafted into SCID mice to create hu-PBL-SCID chimeras.
Purpose of the Study:
- To discuss the immunobiology of hu-PBL-SCID chimeras.
- To explore the two-phase evolution of chimerism in this model.
- To consider the implications for the utilization of the hu-PBL-SCID model.
Main Methods:
- Grafting of human peripheral blood lymphocytes into SCID mice.
- Observation and analysis of immune system function over time.
- Immunological characterization of anti-mouse-reactive clones.
Main Results:
- Hu-PBL-SCID chimerism initially involves stable engraftment and a functional human immune system.
- A subsequent phase is characterized by the selection of anti-mouse-reactive clones.
- This selection leads to the nonfunctional state of the human immune system within the chimera.
Conclusions:
- The hu-PBL-SCID model exhibits a dynamic, two-phase immune system evolution.
- Understanding these phases is crucial for the accurate interpretation and application of this model.
- Further research may refine the use of hu-PBL-SCID chimeras in immunological studies.