Cancer is a chronic disease which can cause death. In traditional chemotherapycytotoxic drugs are used to kill proliferating cancer cells. The cytotoxic agent exhibits less specificity, less biological activity, causes sys-temic toxicity and undesirable side effects. Each year, about 1.8 million of the population are infected and die due to tuberculosis infection. An increase of drug resistance during the tuberculosis treatment is a significant concern. So, it is necessary to develop a new approach or therapies to resolve drug resistance, drug selectivity in tuberculosis infection and the reduction of the side effects of cytotoxic agents and anti-tubercular drugs. This review describes the newly emerging concept of «vitamin drug conjugate». Vitamin-drug conjugate is a specifically carried drug toward the target site, is one of the promising ways to treat chronic diseases like can-cer and tuberculosis and enhance the therapeutic outcome. The purpose of this review is to explore vitamin as a targeting moiety for new anticancer and anti-tubercular drug to overcome challenges, such as non-selectivity, systemic toxicity and multidrug resistance. This approach is beneficial in the treatment of life-threatening disease like cancer, tuberculosis and also in many viral infections.
Cancer is the uncontrolled growth of cells in the human body that has the ability to spread. The purpose of the study is to explore that vitamins can be used as a targeting moiety for new anticancer drugs to address issues like non-selectivity, systemic toxicity. 5-Fluorouracil acetic acid–Vitamin D3 (5FUAC-Vit.D3) conjugate has been synthesized, characterized, and evaluated for its anticancer activity. 5-FUAC-Vit.D3 conjugate was synthesized via esterification mechanism in the presence of N-Hydroxy succinimide (NHS) and 1-(3-Dimethylaminopropyl)-3-ethylcarbodiimide (EDC) by using HCL as coupling agent. Formation of 5-FUAC-Vit.D3 conjugate via esteric bond and the structure of the compounds were confirmed by spectroscopic data, i.e., IR, NMR, and mass spectra. The docking studies showed that 5-FUAC-Vit.D3 conjugate interacted at Arg-215 and Lys-47 of the human thymidylate synthase proteins, through hydrogen bonding and ionic bonds respectively with a binding score of -8.614 which is higher than only 5-FU (-3.475). So, it was proved that forming 5-FUAC-Vit.D3 conjugate shows greater binding to the target protein.
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