Overloading ion-exchange membranes as a purification step for monoclonal antibodies

Overloading ion-exchange membranes as a purification step for monoclonal antibodies

The present study examined the overloading of ion-exchange membrane adsorbers, a form of frontal chromatography, as the final purification step in the production of mAbs (monoclonal antibodies) produced from CHO (Chinese-hamster ovary) cells. Preferential binding of impurities over antibody product was exploited using commercially available cation- and anion-exchange membranes. Three different ...

Purification of monoclonal antibodies using modern chromatography media and membranes

Removal of Aggregates of Monoclonal Antibodies by Ion Exchange Chromatography

Abstract—The primary objective of this work was to study the effect of resin chemistry, pH and molarity of binding and elution buffer on aggregate removal using Cation Exchange Chromatography and find the optimum conditions which can give efficient aggregate removal with minimum loss of yield. Four different resins were used for carrying out the experiments: Fractogel EMD SO3(S), Fractogel EMD ...

Monoclonal Antibodies

SUMMARY Monoclonal Antibodies are identical antibodies and Can be generated in ultimated amounts by countinuos cultures of single antibody- secreting cells. These cell lines are produced by cell fusion of normal lymphocytes to cells of a myeloma tumor cell line, which confers on the antibody producing hybrid cell, immortality and the ability grow as atumor in animals. monoclonal antibodies c...

Monoclonal Antibodies as Therapeutic Agents: Advances and Challenges

Despite the major advances in conventional forms of treatment (i.e. surgical techniques, radiotherapy and chemotherapy) and improved survival rates, cancer is still the second leading cause of death in developing countries. One major limitation of cytotoxic drugs and radiation in the treatment of cancer patients is their inability to discriminate between malignant and normal tissues. This in tu...