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V(D)J recombination and its defects

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Artemis-deficient SCID<br />

- Female patient diagnosed with SCID at age of 5 months<br />

(failure to thrive, pneumonia due to Pneumocystis carinii <strong>and</strong><br />

CMV infections)<br />

- Agammaglobulinemia, no B-cells, T-cells were of maternal<br />

origin<br />

- At age of 7 months, SCT from HLA-identical brother,<br />

uneventful post-transplantation course<br />

- Gradual rise in T-cells of donor origin, T-cells of mother<br />

disappeared within one year<br />

- However, no B-cell engraftment <strong>and</strong> patient remained<br />

dependent on immunoglobulin substitution

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