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Related Concept Videos

Hybridoma Technology01:31

Hybridoma Technology

Hybridoma technology is used for the large-scale production of monoclonal antibodies. Monoclonal antibodies bind to only a single antigenic determinant or epitope. Such antibodies are used in research, diagnostics, and disease therapy. The hybridoma technology established in 1975 by Georges Köhler and Cesar Milstein was awarded the Nobel Prize in Medicine in 1984 for revolutionizing research and therapy.
Hybridoma Selection
Commonly used fusion techniques — electroporation, polyethylene glycol...

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Related Experiment Video

Updated: Jun 25, 2026

Characterization of Glycoproteins with the Immunoglobulin Fold by X-Ray Crystallography and Biophysical Techniques
08:58

Characterization of Glycoproteins with the Immunoglobulin Fold by X-Ray Crystallography and Biophysical Techniques

Published on: July 5, 2018

Anti-CD22 Onconase: preparation and characterization.

Dianne L Newton1, Luke H Stockwin, Susanna M Rybak

  • 1NCI-Frederick, National Institutes of Health, Frederick, MD, USA.

Methods in Molecular Biology (Clifton, N.J.)
|March 3, 2009
PubMed
Summary
This summary is machine-generated.

A novel antibody-drug conjugate, RFB4-Onconase, targets CD22+ lymphomas. This targeted therapy shows efficacy in preclinical models with low toxicity, offering a promising treatment for non-Hodgkin

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Targeted Antibody Blocking by a Dual-Functional Conjugate of Antigenic Peptide and Fc-III Mimetics (DCAF)
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Last Updated: Jun 25, 2026

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09:39

Targeted Antibody Blocking by a Dual-Functional Conjugate of Antigenic Peptide and Fc-III Mimetics (DCAF)

Published on: September 17, 2019

Area of Science:

  • Oncology
  • Immunotherapy
  • Biochemistry

Background:

  • Antibody-drug conjugates (ADCs) offer targeted delivery of cytotoxic agents.
  • Non-Hodgkin's lymphoma (NHL) expresses the CD22 antigen.
  • Onconase (Onc) is a ribonuclease with cytotoxic potential.

Purpose of the Study:

  • To develop a targeted therapeutic for CD22-expressing lymphomas.
  • To evaluate the efficacy and safety of RFB4-conjugated Onconase (RFB4-Onc).

Main Methods:

  • Conjugation of the anti-CD22 antibody RFB4 to Onconase.
  • Preclinical testing in lymphoma models.
  • Assessment of specificity and toxicity.

Main Results:

  • RFB4-Onc demonstrated enhanced specificity for CD22+ lymphomas.
  • Effective cytotoxicity was observed in preclinical models.
  • Minimal non-specific toxicities were noted in murine studies.

Conclusions:

  • RFB4-Onc is a potential drug candidate for non-Hodgkin's lymphoma.
  • Optimized derivatization and conjugation enhance therapeutic potential.
  • Targeted delivery of Onconase via RFB4 improves specificity and reduces toxicity.