Send to

Choose Destination
Clin Immunol Immunopathol. 1994 Dec;73(3):362-6.

Long-term culture and T cell receptor analysis of T cell clones isolated from a patient with adenosine deaminase deficiency and type I diabetes.

Author information

Institute of Protein Biochemistry and Enzymology, CNR, Naples, Italy.


We performed limiting dilution culture of T cells from a patient affected by primary immunodeficiency as a result of complete lack of adenosine deaminase (ADA) activity and also affected by insulin-dependent diabetes mellitus (type I diabetes). Despite the occurrence of immunodeficiency, we were able to raise and grow T cell clones derived from this patient in long-term culture. These T cells displayed ADA enzymatic activity and produced interleukin-2 after engagement of their T cell receptor (TCR)/CD3 complex. We analyzed the TCR repertoire of such clones by nucleotide sequencing of TCR beta chains. The results show that the T cell clones express different V beta but similar J regions. However, the CDR3 regions which are implicated in antigen recognition were found to be heterogeneous.

[Indexed for MEDLINE]

Supplemental Content

Loading ...
Support Center