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Development of high-affinity monoclonal antibody using CD44 overexpressed cells as a candidate for targeted immunotherapy and diagnosis of acute myeloid leukemia.
Human Antibodies 2017
AIM: CD44s antigens have been suggested as an efficient biomarker for cancer stem cells. Current study aimed to develop a hybridoma that producing a high affinity murine anti-human CD44 monoclonal antibody for early diagnostic laboratory tests of some cancer.
MATERIALS AND METHODS: To make hybridoma against CD44, mice were immunized with MDA-MB-468 cells. Resulted hybridomas using three culture media were screened by indirect ELISA, then cloned by limiting dilution, and isotype was determined after obtaining ascitic fluid and antibody purification.
RESULTS: We obtained a stable secreting clone, capable of secreting a high-affinity monoclonal antibody against CD44 protein, IgG2a kappa, with the affinity of 5.4 × 10-8 M without cross-reactivity.
CONCLUSION: We could establish a hybridoma in a native form. This stable and high-affinity anti-CD44 mAb has a potential for diagnostic procedures and laboratory research. Thus, it could be exploited as a suitable tool for target-specific diagnosis and even treatment in several cancers.
MATERIALS AND METHODS: To make hybridoma against CD44, mice were immunized with MDA-MB-468 cells. Resulted hybridomas using three culture media were screened by indirect ELISA, then cloned by limiting dilution, and isotype was determined after obtaining ascitic fluid and antibody purification.
RESULTS: We obtained a stable secreting clone, capable of secreting a high-affinity monoclonal antibody against CD44 protein, IgG2a kappa, with the affinity of 5.4 × 10-8 M without cross-reactivity.
CONCLUSION: We could establish a hybridoma in a native form. This stable and high-affinity anti-CD44 mAb has a potential for diagnostic procedures and laboratory research. Thus, it could be exploited as a suitable tool for target-specific diagnosis and even treatment in several cancers.
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