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An Investigation in Monoclonal Antibodies

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An Investigation in Monoclonal Antibodies
An Investigation in Monoclonal Antibodies

Meena Henen

Introduction
One of the major medical concerns of the century has been finding a cure for cancer. Scientists have made progress in solving the cancer puzzle with the innovation of procedures such as chemotherapy and various scanning methods, but no one has yet found a definite solution. Possibly the newest discovery in the cancer field has been monoclonal antibodies (mAbs). Nicknamed “magic bullets,” mAbs have been proposed to be analogous to microscopic missiles that seek out concentrations of cancerous matter and attack. MAbs aren’t nearly this simple, but when working correctly they are very effective and are advantageous over normal antibodies or less specific polyclonals. These engineered antibodies have created a whole new area of research for scientists trying to find a cure for cancer, as well as for those who have found other applications for mAbs.

Structure and Function of Antibodies Natural antibodies or immunoglobulins (Ig) are crucial protein molecules of the immune system that participate in fighting off invading microbes, viruses and toxins. Each antibody is made up of four chains that are linked by disulfide bonds. They are y-shaped peptide molecules with two split arms at one end of a molecule making up the FAb region, and one constant tail region, called the Fc region, making up the other end. The two arms provide the sites at which an antibody binds itself to an antigen or cancerous agent. Interactions with the cells of the immune system that engulf and eliminate invading microbes and viruses are done through the constant Fc region. Many antibodies coat an antigen at a given time, interacting through chemical signals and increasing the chances for an antigen’s destruction.
Production of Monoclonal Antibodies
Georges J.F. Kohler and César Milstein won the Nobel Prize in 1984 for their experimental techniques that led to the innovation of



Cited: Amin, T., Larkins, A., James, R.F.L., Hirst, T.R. (1995) A monoclonal antibody that recognises the N-terminal decapeptide of the B-subunit of Escherichia coli heat-labile enterotoxin: a new Bishop, M.R. “Monoclonal Antibodies.” (August 2003). Goldenberg, D.M. (2002) Targeted Therapy of Cancer with Radiolabeled Antibodies. The Journal of Nuclear Medicine 43: 693-713. Habiba, M.A., James, R.F.L., Bell, S.C., Al-Azzawi, F. (1999) A mouse monoclonal antibody LDS60 detects a cycle modulated 200kDa endometrial antigen Horning, S.J., R.S. Mocharnuk (2002) Monoclonal Antibody Therapy in B-Cell-Related Disorders and Malignancies 2003). Karpas, A., A. Dremucheva, B.H. Czepulkowski (2001) A human myeloma cell line suitable for the generation of human monoclonal antibodies Peterson, N.C. (1997). Practical Applications and Comparison of Ascites and In Vitro Methods MAb Production, in Alternatives in Monoclonal Antibody Production, in A Workshop of The Reff, E.M., Kandasamy H., Gary B. (2003) Future of Monoclonal Antibodies in the Treatment of Hematologic Malignancies Sledge, G.W., M.L. Plante (2000) Monoclonal Antibodies in the Treatment of Cancer. (July 19, 2001). Stephens, J.C., Larkins, A., James, R.F.L., Rathbone, B.J. (1996) Production of a monoclonal antibody against the 128 kDa (Cag A) protein of Helicobacter pylori Swift, S.M., Rowe, J., Larkins, A.P. and James, R.F.L. (1992) Monoclonal antibodies raised against semi-purified preparations of human islets define subpopulations of pancreatic cells

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