Antibiotic Resistance: A Genetic and Physiological Perspective
Rania G. Elbaiomy , Ahmed H. El-Sappah , Rong Guo , Xiaoling Luo , Shiyuan Deng , Meifang Du , Xiaohong Jian , Mohammed Bakeer , Zaixin Li , Zhi Zhang
MedComm ›› 2025, Vol. 6 ›› Issue (11) : e70447
Antibiotic Resistance: A Genetic and Physiological Perspective
Antimicrobial-resistant bacteria, a growing worldwide concern, reduce the effectiveness of antibiotics against a wide range of microbial infections. Various bacterial species have quickly developed antibiotic resistance since the first mention of penicillin resistance in 1947. A rise in mortality, more extended hospital stays, more healthcare expenditures, and morbidity are all brought about by these bacteria that are resistant to antibiotics. To develop resistance, bacteria may undergo genetic changes, engage in horizontal gene transfer, produce β-lactamase, activate efflux pumps, form biofilms, and alter their metabolism to become less susceptible to drugs. Environmental factors and sublethal antibiotic exposure exacerbate resistance, particularly in cases of persistent infections caused by biofilms. This tendency is prompted by the overuse of antibiotics in both human and veterinary medicine, as well as inadequate infection control measures and environmental pollution. This review presents an extensive survey of antimicrobial resistance across bacterial taxa, with a focus on the physiological and genetic processes underlying this phenomenon. It delves into the current therapeutic landscape and showcases cutting-edge methods—such as artificial intelligence-driven antibiotic discovery and resistance prediction—to inform the development of next-generation antibiotics and containment systems.
β-lactamases / antibiotic resistance / biofilm / coccoid / efflux pumps / genetic mutations
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2025 The Author(s). MedComm published by Sichuan International Medical Exchange & Promotion Association (SCIMEA) and John Wiley & Sons Australia, Ltd.
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