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Presymptomatic late-infantile metachromatic leukodystrophy treated with bone marrow transplantation
G Pridjian1, J Humbert, J Willis
1Human Genetics Program, Tulane University Medical School, New Orelans, Louisiana.
Insights
Bone marrow transplant in a young child with metachromatic leukodystrophy (MLD) delayed disease onset and slowed progression. This early intervention showed a positive impact compared to an untreated sibling.
Area of Science:
- Neuroscience
- Genetics
- Hematology
Background:
- Metachromatic leukodystrophy (MLD) is a rare genetic disorder affecting the nervous system.
- Early diagnosis and intervention are critical for managing MLD progression.
Observation:
- A younger sister diagnosed with MLD received a haploidentical bone marrow transplant from her mother at 8 months of age.
- The patient was pre-symptomatic for neurological deterioration at the time of transplant.
Findings:
- The onset of neurological regression was delayed by approximately one year compared to her older sibling.
- The rate of neurological progression was significantly slower in the treated patient.
Implications:
- Hematopoietic stem cell transplantation may be a viable therapeutic option for delaying MLD progression.
- Early intervention before significant neurological damage can alter the disease course.
Abstract:
At 8 months of age, before clinical neurologic deterioration, the younger of two sisters with metachromatic leukodystrophy received a transplant of bone marrow from her haploidentical, heterozygote mother. Compared with the course in the older, affected, untreated sibling, the onset of neurologic regression was delayed 1 year and progressed at a slower rate.
