Abstract
: Drug resistance confronts chemotherapy of neoplasm and microbial infections. A vast array of molecular mechanisms was implicated in drug resistance, including generation of drug efflux transporters, mutation of drug targets, and alteration of drug metabolism. With the alarming rate of increase in drug resistance, pathogens are bolstering in such a way that many new drugs face efficacy problems within a short span of entry into the market. Evolution is the driving force towards the development of drug resistance. By adopting the modern genomic and functionomic analytical techniques, scientists have now identified novel genes and signalling proteins involved in the evolution of drug resistance in microorganisms. Given the current knowledge of bacterial evolution, antibiotic drug discovery is ready for a paradigm shift to explore the newer ways to tackle drug resistance. The article discusses such recent developments and reviews their merits and demerits in an attempt to envisage the findings in this new domain of medicine.
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