The non immunogenicity of CALLA in leukemic children.
Biomedicine & pharmacotherapy = Biomédecine & pharmacothérapie(1988)
摘要
The sera from 55 children with acute lymphoblastic leukemia (ALL) treated with active immunotherapy were examined for the presence of antibodies against common ALL antigen (CALLA). A solid phase indirect radioimmunometric assay (IRA) was developed which enabled the detection of anti-CALLA antibody in patients' sera, utilizing the ability of affinity-purified CALLA to bind Ricinus communis agglutinin and anti-CALLA antibody simultaneously. Using IRA, anti-CALLA antibody activity could not be detected in a majority of patients. We concluded that the patients did not raise comparable antibodies against CALLA, indicating this antigen is not immunogenic for ALL patients.
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