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Absence of clonal beta and gamma T-cell receptor gene rearrangements in a subset of peripheral T-cell lymphomas. 1988

L M Weiss, and L J Picker, and T M Grogan, and R A Warnke, and J Sklar
Neurological Institute, University of Vienna, Austria.

The authors describe a set of seven peripheral T-cell lymphomas that lack detectable rearrangements of T-cell receptor (TCR) genes. All cases showed antigenic profiles consistent with T-cell lymphoma, including expression of Leu-5 (CD2) antigen. However, few other T-lineage markers were found, and none of the cases tested (6 of 7) bound antibody recognizing the constant region of the beta TCR protein. Each case showed exclusively germline configurations of DNA for the beta TCR genes in Southern blot analyses with the use of several different combinations of restriction enzymes and DNA hybridization probes. One case contained clonal rearrangements of the gamma TCR gene and of the immunoglobulin heavy chain gene. Our results suggest that certain cases of peripheral T-cell lymphoma may lack rearrangements of TCR genes--particularly those cases expressing restricted numbers of T-lineage antigens. In view of these findings, failure to detect rearrangements of TCR genes by Southern blot analyses is not necessarily inconsistent with malignant lymphocytic proliferations in T-lineage neoplasia.

UI MeSH Term Description Entries
D008223 Lymphoma A general term for various neoplastic diseases of the lymphoid tissue. Germinoblastoma,Lymphoma, Malignant,Reticulolymphosarcoma,Sarcoma, Germinoblastic,Germinoblastic Sarcoma,Germinoblastic Sarcomas,Germinoblastomas,Lymphomas,Lymphomas, Malignant,Malignant Lymphoma,Malignant Lymphomas,Reticulolymphosarcomas,Sarcomas, Germinoblastic
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D010641 Phenotype The outward appearance of the individual. It is the product of interactions between genes, and between the GENOTYPE and the environment. Phenotypes
D011948 Receptors, Antigen, T-Cell Molecules on the surface of T-lymphocytes that recognize and combine with antigens. The receptors are non-covalently associated with a complex of several polypeptides collectively called CD3 antigens (CD3 COMPLEX). Recognition of foreign antigen and the major histocompatibility complex is accomplished by a single heterodimeric antigen-receptor structure, composed of either alpha-beta (RECEPTORS, ANTIGEN, T-CELL, ALPHA-BETA) or gamma-delta (RECEPTORS, ANTIGEN, T-CELL, GAMMA-DELTA) chains. Antigen Receptors, T-Cell,T-Cell Receptors,Receptors, T-Cell Antigen,T-Cell Antigen Receptor,T-Cell Receptor,Antigen Receptor, T-Cell,Antigen Receptors, T Cell,Receptor, T-Cell,Receptor, T-Cell Antigen,Receptors, T Cell Antigen,Receptors, T-Cell,T Cell Antigen Receptor,T Cell Receptor,T Cell Receptors,T-Cell Antigen Receptors
D002675 Child, Preschool A child between the ages of 2 and 5. Children, Preschool,Preschool Child,Preschool Children
D005260 Female Females
D005838 Genotype The genetic constitution of the individual, comprising the ALLELES present at each GENETIC LOCUS. Genogroup,Genogroups,Genotypes
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults

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