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Local graft versus host reaction in the xenogeneic system
Archivum Immunologiae Et Therapiae Experimentalis
|January 1, 1978
Summary
Injecting rat spleen cells into cyclophosphamide-treated mice induced a localized graft-versus-host reaction (GvHR). This reaction, measured by kidney enlargement, indicated successful xenogeneic GvHR and potential systemic spread.
Area of Science:
- Immunology
- Transplantation Biology
Background:
- Graft-versus-host reactions (GvHR) are critical in transplantation.
- Studying localized GvHR models can elucidate immune responses.
Purpose of the Study:
- To establish and characterize a localized xenogeneic graft-versus-host reaction (GvHR) model.
- To determine optimal conditions for inducing GvHR using rat spleen cells in mice.
Main Methods:
- Adult mice were treated with cyclophosphamide (CY).
- Viable rat spleen cells were injected beneath the renal capsule.
- Kidney enlargement index (KI) was used to quantify GvHR.
- Splenomegaly was assessed to indicate systemic dissemination.
Main Results:
- A localized GvHR was successfully induced, evidenced by kidney enlargement.
- Optimal GvHR occurred with 30-50 million rat spleen cells and CY treatment 24 hours prior.
- Splenomegaly in recipient mice suggested the local GvHR disseminated systemically.
Conclusions:
- The rat spleen cell injection model effectively induces localized xenogeneic GvHR in CY-treated mice.
- Kidney enlargement index (KI) serves as a reliable measure for this localized GvHR.
- The model shows potential for studying systemic spread of localized immune reactions.