Biomaterial Database

Successful formation of a chimeric human thymus allograft following transplantation of cultured postnatal human thymus. 1997

M L Markert, and D D Kostyu, and F E Ward, and T M McLaughlin, and T J Watson, and R H Buckley, and S E Schiff, and R M Ungerleider, and J W Gaynor, and K T Oldham, and S M Mahaffey, and M Ballow, and D A Driscoll, and L P Hale, and B F Haynes

Department of Pediatrics, Duke University Medical Center, Durham, NC 27710, USA. MARKE001@MC.DUKE.EDU

Transplantation of cultured postnatal human thymus was performed in a patient with complete DiGeorge syndrome. Biopsy of the graft 3 mo after implantation revealed normal CD1+ thymocytes in thymic cortical epithelial regions and CD1- thymocytes in thymic medullary epithelial regions, respectively. HLA analysis of graft thymocyte and thymic microenvironment components demonstrated that developing thymocytes and thymic macrophages were recipient derived, while thymic epithelial components were of donor origin. The patient, who initially had no T cells and had profoundly defective T cell function, developed normal T cell responses to mitogens and Ags, tolerance to donor in a mixed lymphocyte reaction, and normal Ab titers after tetanus toxoid and pneumovax immunization. Thus, transplantation of cultured postnatal human thymic tissue in humans can form functional chimeric thymic tissue, and may provide a strategy to reconstitute the peripheral T cell pool in select congenital and acquired immune deficiency syndromes.

UI	MeSH Term	Description	Entries
D007223	Infant	A child between 1 and 23 months of age.	Infants
D009924	Organ Culture Techniques	A technique for maintenance or growth of animal organs in vitro. It refers to three-dimensional cultures of undisaggregated tissue retaining some or all of the histological features of the tissue in vivo. (Freshney, Culture of Animal Cells, 3d ed, p1)	Organ Culture,Culture Technique, Organ,Culture Techniques, Organ,Organ Culture Technique,Organ Cultures
D002678	Chimera	An individual that contains cell populations derived from different zygotes.	Hybrids,Chimeras,Hybrid
D004062	DiGeorge Syndrome	Congenital syndrome characterized by a wide spectrum of characteristics including the absence of the THYMUS and PARATHYROID GLANDS resulting in T-cell immunodeficiency, HYPOCALCEMIA, defects in the outflow tract of the heart, and craniofacial anomalies.	Velocardiofacial Syndrome,22q11.2 Deletion Syndrome,22q11.2DS,Autosomal Dominant Opitz G-Bbb Syndrome,Catch22,Conotruncal Anomaly Face Syndrome,Conotruncal Anomaly Face Syndrome (CTAF),Deletion 22q11.2 Syndrome,DiGeorge Anomaly,DiGeorge Sequence,Familial Third and Fourth Pharyngeal Pouch Syndrome,Hypoplasia of Thymus and Parathyroids,Pharyngeal Pouch Syndrome,Sedlackova Syndrome,Shprintzen Syndrome,Shprintzen VCF Syndrome,Third and Fourth Pharyngeal Pouch Syndrome,Thymic Aplasia Syndrome,VCF Syndrome,Velo-Cardio-Facial Syndrome,Autosomal Dominant Opitz G Bbb Syndrome,Deletion Syndrome, 22q11.2,Syndrome, DiGeorge,Syndrome, Sedlackova,Syndrome, Shprintzen,Syndrome, VCF,Syndrome, Velo-Cardio-Facial,Syndrome, Velocardiofacial,Velo Cardio Facial Syndrome
D006085	Graft Survival	The survival of a graft in a host, the factors responsible for the survival and the changes occurring within the graft during growth in the host.	Graft Survivals,Survival, Graft,Survivals, Graft
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D013950	Thymus Gland	A single, unpaired primary lymphoid organ situated in the MEDIASTINUM, extending superiorly into the neck to the lower edge of the THYROID GLAND and inferiorly to the fourth costal cartilage. It is necessary for normal development of immunologic function early in life. By puberty, it begins to involute and much of the tissue is replaced by fat.	Thymus,Gland, Thymus,Glands, Thymus,Thymus Glands
D014184	Transplantation, Homologous	Transplantation between individuals of the same species. Usually refers to genetically disparate individuals in contradistinction to isogeneic transplantation for genetically identical individuals.	Transplantation, Allogeneic,Allogeneic Grafting,Allogeneic Transplantation,Allografting,Homografting,Homologous Transplantation,Grafting, Allogeneic