Biomaterial Database

In vitro differentiation of human marrow T cell precursors by thymic factors in severe combined immunodeficiency. 1981

G S Incefy, and R J O'Reilly, and N Kapoor, and T Iwata, and R A Good

Marrow cells from 16 patients with severe combined immunodeficiency diseases (SCID) were examined for the presence of T cell precursors which could be induced to express surface markers and functions of T lymphocytes after exposure in vitro to thymic extracts or peptides of thymic origin (thymopoietin and thymopoietin32-36 (TP-5). Marrow cells from 14 patients studied before transplantation revealed three patterns of response. In five patients, inducible T cell precursors were not detected. In six patients, precursors were detected which could be induced to express a human T lymphocyte antigen (HTLA) but acquired little or no ability to rosette with sheep erythrocytes (SRBCs). Induction of HTLA-positive and E rosette-positive lymphocytes was normal in only two patients, both of whom were engrafted with maternal lymphocytes as an apparent result of an intrauterine infusion. Induction of mixed leukocyte reaction (MLR) responses following exposure to thymic hormones was also observed in one of these two patients. In no case could significant responses to mitogens be elicited. Following transplantation, marrow cells from fully engrafted, immunologically reconstituted patients could be induced to bear HTLA, to form E rosettes, and to respond to mitogens and allogeneic cells following exposure to thymic extracts, thymopoietin, or TP-5. Thus, most patients with SCID manifest differentiative abnormalities intrinsic to lymphoid precursors which are corrected following engraftment of functioning allogeneic lymphoid precursors from normal donors.

UI	MeSH Term	Description	Entries
D007153	Immunologic Deficiency Syndromes	Syndromes in which there is a deficiency or defect in the mechanisms of immunity, either cellular or humoral.	Antibody Deficiency Syndrome,Deficiency Syndrome, Immunologic,Deficiency Syndromes, Antibody,Deficiency Syndromes, Immunologic,Immunologic Deficiency Syndrome,Immunological Deficiency Syndromes,Antibody Deficiency Syndromes,Deficiency Syndrome, Antibody,Deficiency Syndrome, Immunological,Deficiency Syndromes, Immunological,Immunological Deficiency Syndrome,Syndrome, Antibody Deficiency,Syndrome, Immunologic Deficiency,Syndrome, Immunological Deficiency,Syndromes, Antibody Deficiency,Syndromes, Immunologic Deficiency,Syndromes, Immunological Deficiency
D007223	Infant	A child between 1 and 23 months of age.	Infants
D007231	Infant, Newborn	An infant during the first 28 days after birth.	Neonate,Newborns,Infants, Newborn,Neonates,Newborn,Newborn Infant,Newborn Infants
D008213	Lymphocyte Activation	Morphologic alteration of small B LYMPHOCYTES or T LYMPHOCYTES in culture into large blast-like cells able to synthesize DNA and RNA and to divide mitotically. It is induced by INTERLEUKINS; MITOGENS such as PHYTOHEMAGGLUTININS, and by specific ANTIGENS. It may also occur in vivo as in GRAFT REJECTION.	Blast Transformation,Blastogenesis,Lymphoblast Transformation,Lymphocyte Stimulation,Lymphocyte Transformation,Transformation, Blast,Transformation, Lymphoblast,Transformation, Lymphocyte,Activation, Lymphocyte,Stimulation, Lymphocyte
D008297	Male		Males
D008934	Mitogens	Substances that stimulate mitosis and lymphocyte transformation. They include not only substances associated with LECTINS, but also substances from streptococci (associated with streptolysin S) and from strains of alpha-toxin-producing staphylococci. (Stedman, 25th ed)	Mitogen,Phytomitogen,Phytomitogens
D002454	Cell Differentiation	Progressive restriction of the developmental potential and increasing specialization of function that leads to the formation of specialized cells, tissues, and organs.	Differentiation, Cell,Cell Differentiations,Differentiations, Cell
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
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man