An anti-idiotypic IgGlκ murine monoclonal antibody (MoAb) Y7 against purified monoclonal IgMλl, derived from a patient with Waldenström’s macroglobulinemia, has been generated. This antibody cross-reacted with the tumor-derived idiotypes of patients with B cell nonHodgkin’s lymphoma as measured by competitive inverse solid radioimmunoassay using unpurified serum samples. Our results with the inhibition curves of 10 sera of normal donors and 60 sera of lymphoma patients indicate that 21 lymphoma patients revealed cross-reactivities > 7%, the mean value observed in normal donors. Of these, 5 sera cross-reacted strongly, in the range of 43–163%, revealing a frequency of positive cross-reactivity for MoAb Y7 of 1/12 sera of lymphoma patients. The generation of a panel of anti-idiotypic antibodies which cross-react with different tumor-derived Ig in serum may be valuable for monitoring the disease in a high proportion of NHL patients.

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We describe our approaches to enhance consistency validation and QoS prediction in service-oriented systems by making use of data properties and the structure of workflows and service compositions.

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