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Donor-transmitted melanoma after limbal stem cell transplantation
1Department of Internal Medicine, Michigan State University College of Human Medicine, East Lansing, Michigan, USA.
Avicenna Journal of Medicine
|May 5, 2017
Summary
Limbal stem cell transplantation can restore corneas, but a case revealed melanoma transmission risk from donors. Donor screening criteria were updated to exclude melanoma history, enhancing patient safety.
Area of Science:
- Ophthalmology
- Regenerative Medicine
- Cancer Biology
Background:
- Limbal stem cells (LSCs) regenerate corneal epithelium.
- LSC transplantation treats corneal diseases.
- Corneal tissue's avascularity historically allowed relaxed donor screening for melanoma.
Observation:
- A patient received LSC transplantation from a donor with a history of melanoma.
- The recipient subsequently developed ocular melanoma.
Findings:
- This case demonstrated potential melanoma transmission via LSC transplantation.
- The Eye Bank Association of America revised donor criteria to exclude individuals with any melanoma history.
Implications:
- Enhanced donor screening is crucial for LSC transplantation safety.
- This highlights the importance of donor history in regenerative medicine.
- Updated guidelines protect recipients from transfusion-transmitted cancers.
