Thymus transplantation for complete DiGeorge syndrome: European experience
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Authors
Davies, E GrahamCheung, Melissa
Gilmour, Kimberly
Maimaris, Jesmeen
Curry, Joe
Furmanski, Anna L.
Sebire, Neil
Halliday, Neil
Mengrelis, Konstantinos
Adams, Stuart
Bernatoniene, Jolanta
Bremner, Ronald
Browning, Michael
Devlin, Blythe
Erichsen, Hans Christian
Gaspar, H. Bobby
Hutchison, Lizzie
Ip, Winnie
Ifversen, Marianne
Leahy, T. Ronan
McCarthy, Elizabeth
Moshous, Despina
Neuling, Kim
Pac, Malgorzata
Papadopol, Alina
Parlsey, Kathryn L.
Poliani, Luigi
Ricciardelli, Ida
Sansom, David M.
Voor, Tiia
Worth, Austen
Crompton, Tessa
Markert, M. Louise
Thrasher, Adrian J.
Affiliation
University College LondonGreat Ormond Street Hospital
University of Bedfordshire
Royal Free Hospital
Bristol Children’s Hospital
Birmingham Children’s Hospital
Leicester Royal Infirmary
Duke University Medical Center
Oslo University Hospital
Copenhagen University Hospital
Our Lady’s Children’s Hospital, Dublin
Hopital Necker, Paris
University Hospital, Coventry
Children’s Memorial Health Institute, Warsaw
Paediatric Clinic, Bucharest
University of Brescia
Tartu University Hospital
Issue Date
2017-04-08
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Background: Thymus transplantation is a promising strategy for the treatment of athymic complete DiGeorge syndrome (cDGS). Methods: Twelve patients with cDGS were transplanted with allogeneic cultured thymus. Objective: To confirm and extend the results previously obtained in a single centre. Results: Two patients died of pre-existing viral infections without developing thymopoeisis and one late death occurred from autoimmune thrombocytopaenia. One infant suffered septic shock shortly after transplant resulting in graft loss and the need for a second transplant. Evidence of thymopoeisis developed from 5-6 months after transplantation in ten patients. The median (range) of circulating naïve CD4 counts (x10663 /L) were 44(11-440) and 200(5-310) at twelve and twenty-four months post-transplant and T-cell receptor excision circles were 2238 (320-8807) and 4184 (1582 -24596) per106 65 T-cells. Counts did not usually reach normal levels for age but patients were able to clear pre-existing and later acquired infections. At a median of 49 months (22-80), eight have ceased prophylactic antimicrobials and five immunoglobulin replacement. Histological confirmation of thymopoeisis was seen in seven of eleven patients undergoing biopsy of transplanted tissue including five showing full maturation through to the terminal stage of Hassall body formation. Autoimmune regulator (AIRE) expression was also demonstrated. Autoimmune complications were seen in 7/12 patients. In two, early transient autoimmune haemolysis settled after treatment and did not recur. The other five suffered ongoing autoimmune problems including: thyroiditis (3); haemolysis (1), thrombocytopaenia (4) and neutropenia (1). Conclusions: This study confirms the previous reports that thymus transplantation can reconstitute T cells in cDGS but with frequent autoimmune complications in survivors.Citation
Davies EG, Cheung M, Gilmour K, Maimaris J, Curry J, Furmanski A, Sebire N, Halliday N, Mengrelis K, Adams S, Bernatoniene J, Bremner R, Browning M, Devlin B, Erichsen HC, Gaspar HB, Hutchison L, Ip W, Ifversen M, Leahy TR, McCarthy E, Moshous D, Neuling K, Pac M, Papadopol A, Parlsey KL, Poliani L, Ricciardelli I, Sansom DM, Voor T, Worth A, Crompton T, Markert ML, Thrasher AJ (2017) 'Thymus transplantation for complete digeorge syndrome: European experience', Journal of Allergy and Clinical Immunology 140 (6) 1660-1670Publisher
ElsevierPubMed ID
28400115PubMed Central ID
PMC5716670Additional Links
http://www.jacionline.org/article/S0091-6749(17)30576-6/abstracthttp://www.sciencedirect.com/science/article/pii/S0091674917305766
Type
ArticleLanguage
enISSN
0091-6749Sponsors
The research leading to these results has received funding from: European Union Seventh Framework Programme ([FP7/2007-2013] [FP7/2007-2011]) under grant agreement N° 261387; Great Ormond Street Hospital Children’s Charity, Mason Medical Research Fund, Wellcome Trust.The work reported is based on independent research, partly supported by the National Institute for Health Research, Great Ormond Street Hospital Biomedical Research Centre (KG, EGD, AJT).ae974a485f413a2113503eed53cd6c53
10.1016/j.jaci.2017.03.020
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