, 2006). He visualized and described the malignancy process. He suggested that early that "cells of tumors with unlimited growth" would develop with the elimination of chromosomes, which inhibit the growth. The multiple genetic alterations in these inhibiting chromosomes are today known as TSGs. The theory supposes that cancer arises from functional defect or absence of one or more TSGs. Clinical trials of TSG gene replacement therapy for breast cancer include the viral wild-type p53, Rb, and mda7. Molecular chemotherapy involves the introduction of suicide genes. The concept evolved from the assumption that cancer cells could be made more sensitive to chemotherapeutics or toxins by introducing "suicide genes." It was a concept initiated in the late 80s. Suicide gene therapy is categorized into toxin gene therapy and enzyme-activating pro-drug therapy. Suicide gene therapy is also called gene-directed enzyme pro-drug therapy or GDEPT. GDEPT treatment consists of the delivery of the...
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