What question did this study set out to answer?

To assess whether direct intra-bone marrow injection of allogeneic bone marrow cells after fractionated irradiation can cure intractable autoimmune disease in chimeric-resistant MRL/lpr mice.

May 15, 2001Blood

Intra–bone marrow injection of allogeneic bone marrow cells: a powerful new strategy for treatment of intractable autoimmune diseases in MRL/lpr mice

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Authors

TKTaketoshi KushidaKansai Medical University MIMuneo InabaKansai Medical University HHHiroko HishaKansai Medical University

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Implication

Preclinical study demonstrates complete autoimmune remission via intra-bone marrow transplantation in mice, suggesting an effective immunosuppressant-free therapy.

Key Points

To assess whether direct intra-bone marrow injection of allogeneic bone marrow cells after fractionated irradiation can cure intractable autoimmune disease in chimeric-resistant MRL/lpr mice.
Conditioned chimeric-resistant MRL/lpr mice with fractionated irradiation (5.5 Gy × 2) followed by intra-bone marrow injection of whole bone marrow cells from allogeneic C57BL/6 donors.
Tracked donor cell chimerism in the bone marrow, spleen, and liver, alongside long-term survival, autoantibody levels, T-cell phenotypes, and donor-host immune tolerance.
Treated mice achieved nearly 100% donor-derived chimerism across bone marrow, spleen, and liver within 14 days, with clear engraftment of donor stromal and hemopoietic progenitor cells.
All treated recipients survived past 60 weeks of age without autoimmune disease, exhibiting normalized autoantibody levels, clearance of aberrant T cells, and bilateral MHC tolerance without immunosuppressants.

Cite This Study

Kushida et al. (2001) studied this question.

synapsesocial.com/papers/6a8383eacaa63b238dc95037 https://doi.org/10.1182/blood.v97.10.3292

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Implication

Preclinical study demonstrates complete autoimmune remission via intra-bone marrow transplantation in mice, suggesting an effective immunosuppressant-free therapy.

Intra–bone marrow injection of allogeneic bone marrow cells: a powerful new strategy for treatment of intractable autoimmune diseases in MRL/lpr mice

Discussion

Member takes

Implication

Key Points

Cite This Study

Intra–bone marrow injection of allogeneic bone marrow cells: a powerful new strategy for treatment of intractable autoimmune diseases in MRL/lpr mice

Discussion

Member takes

Implication

Key Points

Cite This Study

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