The context of T-cell receptor gamma chain genes among wild mouse species

1986 ◽  
Vol 24 (5) ◽  
pp. 304-308 ◽  
Author(s):  
Konrad Huppi ◽  
Lawrence D'Hoostelaere ◽  
Michael Kiefer ◽  
Michael Steinmetz ◽  
Evelyne Jouvin-Marche
1995 ◽  
Vol 41 (5) ◽  
Author(s):  
Takahiro Isono ◽  
CholJang Kim ◽  
Akira Seto

Blood ◽  
1987 ◽  
Vol 70 (6) ◽  
pp. 1933-1939
Author(s):  
A Tawa ◽  
SH Benedict ◽  
J Hara ◽  
N Hozumi ◽  
EW Gelfand

We analyzed rearrangements of the T cell receptor gamma-chain (T gamma) gene as well as rearrangements of the T cell receptor beta-chain (T beta) gene and immunoglobulin heavy-chain (IgH) gene in 68 children with acute lymphoblastic leukemia (ALL). All 15 patients with T cell ALL showed rearrangements of both T beta and T gamma genes. Twenty-four of 53 non-T, non-B ALL patients (45%) showed T gamma gene rearrangements and only 14 of these also showed T beta gene rearrangements. Only a single patient rearranged the T beta gene in the absence of T gamma gene rearrangement. The rearrangement patterns of the T gamma gene in non-T, non-B ALL were quite different from those observed in T cell ALL, as 20 of 23 patients retained at least one germline band of the T gamma gene. In contrast, all T cell ALL patients showed no retention of germline bands. These data indicate that rearrangement of the T gamma gene is not specific for T cell ALL. Further, the results also suggest that T gamma gene rearrangement precedes T beta gene rearrangement. The combined analysis of rearrangement patterns of IgH, T beta, and T gamma genes provides new criteria for defining the cellular origin of leukemic cells and for further delineation of leukemia cell heterogeneity.


Blood ◽  
1987 ◽  
Vol 69 (1) ◽  
pp. 356-360
Author(s):  
JM Greenberg ◽  
JH Kersey

The nuclear enzyme terminal deoxynucleotidyl transferase (TdT) is thought to contribute to the diversity of certain immunoglobulin and T cell receptor gene rearrangements through the addition of random nucleotides at their variable (V)-joining (J) region junctions. An acute lymphoblastic leukemia (ALL) with an immature T cell phenotype (CD7+, CD5+, CD1+/-, CD2+/-, CD3-, CD4-, CD8-) was found to be TdT+ with germline immunoglobulin heavy chain, T cell receptor beta chain, and T cell gamma chain genes. The data indicate that TdT expression can precede T gamma and T beta rearrangement during T lymphoid ontogeny consistent with its proposed association with the T cell receptor rearrangement process. Southern analysis of certain cases of T-ALL may not result in the detection of a monoclonal population of cells.


Blood ◽  
1991 ◽  
Vol 77 (9) ◽  
pp. 1989-1995 ◽  
Author(s):  
JJ Taylor ◽  
D Rowe ◽  
IK Williamson ◽  
SE Christmas ◽  
SJ Proctor ◽  
...  

Abstract This report describes the development and characterization of a method for the amplification of rearranged V-J segments of the human T-cell receptor gamma chain (TCRG) locus using an adaptation of the polymerase chain reaction (PCR) technique. The technique uses a single pair of ‘consensus’ primers to amplify rearrangements involving the V gamma I subgroup genes, which are common in malignant cells from acute lymphoblastic leukemia (ALL) patients. Using this method we were able to detect rearrangements in the TCRG locus in disease cells from patients with T-cell ALL (12 of 12), common ALL (10 of 14), and Null cell ALL (2 of 2) at presentation. Monoallelic and biallelic rearrangements involving V gamma I subgroup genes were identified by restriction analysis of PCR products from DNA samples from a T-cell leukemic cell line, T-cell clones, and disease cells from patients with ALL of T-and B-cell lineage at presentation. These results confirmed the presence of cell clones within the presentation samples and, in one case, confirmed the persistence of the original malignant cell clone at relapse. This is a rapid and specific method for the detection and characterization of rearrangements of the TCRG locus without recourse to Southern blotting. Therefore, the PCR technique described herein can provide the basis for the study of clonal evolution and minimal residual disease on a high proportion of patients with ALL.


Blood ◽  
1987 ◽  
Vol 69 (1) ◽  
pp. 356-360 ◽  
Author(s):  
JM Greenberg ◽  
JH Kersey

Abstract The nuclear enzyme terminal deoxynucleotidyl transferase (TdT) is thought to contribute to the diversity of certain immunoglobulin and T cell receptor gene rearrangements through the addition of random nucleotides at their variable (V)-joining (J) region junctions. An acute lymphoblastic leukemia (ALL) with an immature T cell phenotype (CD7+, CD5+, CD1+/-, CD2+/-, CD3-, CD4-, CD8-) was found to be TdT+ with germline immunoglobulin heavy chain, T cell receptor beta chain, and T cell gamma chain genes. The data indicate that TdT expression can precede T gamma and T beta rearrangement during T lymphoid ontogeny consistent with its proposed association with the T cell receptor rearrangement process. Southern analysis of certain cases of T-ALL may not result in the detection of a monoclonal population of cells.


Science ◽  
1986 ◽  
Vol 234 (4782) ◽  
pp. 1401-1405 ◽  
Author(s):  
A. Lew ◽  
D. Pardoll ◽  
W. Maloy ◽  
B. Fowlkes ◽  
A Kruisbeek ◽  
...  

1987 ◽  
Vol 7 (12) ◽  
pp. 4159-4168 ◽  
Author(s):  
N M Amari ◽  
D Meruelo

We report here that specific T-cell receptor rearrangements were observed in fractionated-X-irradiation-induced murine leukemias. Consistent gamma-chain rearrangements, limited beta-chain rearrangements, and no detectable alpha-chain rearrangements were observed. Gene expression studies revealed that, in comparison with normal thymus tissue, expression of alpha T-cell receptor genes was lower in the thymomas, beta expression was much higher but approximately equal to that of normal thymocytes, and gamma expression was significantly increased. After coupling these data with those from analyses using reagents against other surface markers, such as Lyt-2, L3T4, H-2, IL-2R and MEL-14, we concluded that the target T cells for fractionated-X-irradiation-induced transformation resemble fetal thymocytes from days 15 and 16 of gestation.


Science ◽  
1987 ◽  
Vol 237 (4819) ◽  
pp. 1217-1219 ◽  
Author(s):  
W. Strauss ◽  
T Quertermous ◽  
J. Seidman

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