The Spread and Mechanisms of Antibiotic Resistance in Pathogenic Bacterial Species
Özet
The rapid rise of antibiotic resistance is regarded as one of the most critical global threats to modern medicine, and the strengthening of resistance mechanisms—particularly in pathogenic bacterial species—significantly reduces the effectiveness of clinical treatment strategies. This study aims to investigate the dissemination patterns and molecular-genetic mechanisms of antibiotic resistance in a specific pathogenic bacterium. The research extensively examines the major factors contributing to resistance, including the synthesis of β-lactamases, hyperactivity of efflux pumps, target-site mutations, and plasmid – and transposon-mediated gene transfer. It also analyzes epidemiological indicators that determine the dynamics of resistance spread among various risk groups and in both hospital-acquired and community-acquired infections.
Findings show that uncontrolled antibiotic use, improper dosing, incomplete treatment courses, and strong selective pressure in hospital environments accelerate the emergence of resistant strains. Genetic analyses confirm that resistance genes spread widely among bacteria through horizontal gene transfer, thereby promoting the emergence of new multidrug-resistant pathogens. At the same time, the application of modern molecular diagnostic techniques enables early detection of resistance determinants, allowing for more efficient clinical decision-making.
Overall, the study demonstrates that managing antibiotic resistance requires not only pharmacological approaches but also comprehensive strategic measures—including antimicrobial stewardship, infection control programs, and antibiotic stewardship systems. Consequently, an in-depth understanding of the dissemination mechanisms of antibiotic resistance in pathogenic bacteria holds significant scientific and practical importance for developing new treatment models relevant to global healthcare.
Referanslar
Aminov, R.I. (2017). A brief history of the antibiotic era: Lessons learned and challenges for the future. Frontiers in Microbiology, 8, pp. 1–7
Aslam, B., Wang, W., Arshad, M.I., Khurshid, M., Muzammil, S., Rasool, M.H., & Baloch, Z. (2018). Antibiotic resistance: A rundown of a global crisis. Infection and Drug Resistance, 11, pp. 1645–1658
Blair, J.M.A., Webber, M.A., Baylay, A.J., Ogbolu, D.O., & Piddock, L.J.V. (2015). Molecular mechanisms of antibiotic resistance. Nature Reviews Microbiology, 13(1), pp. 42–51
CDC. (2022). Antibiotic resistance threats in the United States. Centers for Disease Control and Prevention
Davies, J., & Davies, D. (2010). Origins and evolution of antibiotic resistance. Microbiology and Molecular Biology Reviews, 74(3), pp. 417–433
Fleming-Dutra, K.E., Hersh, A.L., Shapiro, D.J., et al. (2016). Prevalence of inappropriate antibiotic prescriptions. JAMA, 315(17), pp. 1864–1873
García-Bayona, L., & Comstock, L.E. (2018). Bacterial interactions that shape the intestinal microbiome. PLoS Pathogens, 14(9), e1007276
Hawkey, P.M., & Jones, A.M. (2009). The changing epidemiology of resistance. Journal of Antimicrobial Chemotherapy, 64(1), i3–i10. https://doi.org/10.1093/jac/dkp256
Holmes, A.H., Moore, L.S. P., Sundsfjord, A., et al. (2016). Understanding the mechanisms and drivers of antimicrobial resistance. The Lancet, 387(10014), pp. 176–187. https://doi.org/10.1016/S0140-6736(15)00473-0
https://doi.org/10.1016/j.amjmed.2012.12.028
Levy, S.B., & Marshall, B. (2004). Antibacterial resistance worldwide: Causes, challenges and responses. Nature Medicine, 10, pp. 122-129. https://doi.org/10.1038/nm1145
Livermore, D.M. (2012). Fourteen years in resistance. International Journal of Antimicrobial Agents, 39(4), pp. 283–294. https://doi.org/10.1016/j.ijantimicag.2011.12.012
Munita, J.M., & Arias, C.A. (2016). Mechanisms of antibiotic resistance. Microbiology Spectrum, 4(2). https://doi.org/10.1128/microbiolspec.VMBF-0016-2015
O’Neill, J. (2016). Tackling drug-resistant infections globally: Final report and recommendations. Review on Antimicrobial Resistance
Prestinaci, F., Pezzotti, P., & Pantosti, A. (2015). Antimicrobial resistance: A global multifaceted phenomenon. Pathogens and Global Health, 109(7), pp. 309–318
Spellberg, B., Bartlett, J.G., & Gilbert, D.N. (2013). The future of antibiotics. The American Journal of Medicine, 126 (7). pp. 561–565.
Ventola, C.L. (2015). The antibiotic resistance crisis. Pharmacy and Therapeutics, 40(4), pp. 277–283
WHO. (2020). Global antimicrobial resistance surveillance system (GLASS) report. World Health Organization
Willyard, C. (2017). The drug-resistant bacteria that pose the biggest threat. Nature, 543(7643), 15
Wright, G.D. (2010). Antibiotic resistance in the environment. Nature Reviews Microbiology, 8(4), pp. 251–259. https://doi.org/10.1038/nrmicro2315
Zhu, Y.G., Zhao, Y., Li, B., Huang, C.L., et al. (2017). Continental-scale pollution of antibiotic resistance genes. Nature Microbiology, 2, 16270
Referanslar
Aminov, R.I. (2017). A brief history of the antibiotic era: Lessons learned and challenges for the future. Frontiers in Microbiology, 8, pp. 1–7
Aslam, B., Wang, W., Arshad, M.I., Khurshid, M., Muzammil, S., Rasool, M.H., & Baloch, Z. (2018). Antibiotic resistance: A rundown of a global crisis. Infection and Drug Resistance, 11, pp. 1645–1658
Blair, J.M.A., Webber, M.A., Baylay, A.J., Ogbolu, D.O., & Piddock, L.J.V. (2015). Molecular mechanisms of antibiotic resistance. Nature Reviews Microbiology, 13(1), pp. 42–51
CDC. (2022). Antibiotic resistance threats in the United States. Centers for Disease Control and Prevention
Davies, J., & Davies, D. (2010). Origins and evolution of antibiotic resistance. Microbiology and Molecular Biology Reviews, 74(3), pp. 417–433
Fleming-Dutra, K.E., Hersh, A.L., Shapiro, D.J., et al. (2016). Prevalence of inappropriate antibiotic prescriptions. JAMA, 315(17), pp. 1864–1873
García-Bayona, L., & Comstock, L.E. (2018). Bacterial interactions that shape the intestinal microbiome. PLoS Pathogens, 14(9), e1007276
Hawkey, P.M., & Jones, A.M. (2009). The changing epidemiology of resistance. Journal of Antimicrobial Chemotherapy, 64(1), i3–i10. https://doi.org/10.1093/jac/dkp256
Holmes, A.H., Moore, L.S. P., Sundsfjord, A., et al. (2016). Understanding the mechanisms and drivers of antimicrobial resistance. The Lancet, 387(10014), pp. 176–187. https://doi.org/10.1016/S0140-6736(15)00473-0
https://doi.org/10.1016/j.amjmed.2012.12.028
Levy, S.B., & Marshall, B. (2004). Antibacterial resistance worldwide: Causes, challenges and responses. Nature Medicine, 10, pp. 122-129. https://doi.org/10.1038/nm1145
Livermore, D.M. (2012). Fourteen years in resistance. International Journal of Antimicrobial Agents, 39(4), pp. 283–294. https://doi.org/10.1016/j.ijantimicag.2011.12.012
Munita, J.M., & Arias, C.A. (2016). Mechanisms of antibiotic resistance. Microbiology Spectrum, 4(2). https://doi.org/10.1128/microbiolspec.VMBF-0016-2015
O’Neill, J. (2016). Tackling drug-resistant infections globally: Final report and recommendations. Review on Antimicrobial Resistance
Prestinaci, F., Pezzotti, P., & Pantosti, A. (2015). Antimicrobial resistance: A global multifaceted phenomenon. Pathogens and Global Health, 109(7), pp. 309–318
Spellberg, B., Bartlett, J.G., & Gilbert, D.N. (2013). The future of antibiotics. The American Journal of Medicine, 126 (7). pp. 561–565.
Ventola, C.L. (2015). The antibiotic resistance crisis. Pharmacy and Therapeutics, 40(4), pp. 277–283
WHO. (2020). Global antimicrobial resistance surveillance system (GLASS) report. World Health Organization
Willyard, C. (2017). The drug-resistant bacteria that pose the biggest threat. Nature, 543(7643), 15
Wright, G.D. (2010). Antibiotic resistance in the environment. Nature Reviews Microbiology, 8(4), pp. 251–259. https://doi.org/10.1038/nrmicro2315
Zhu, Y.G., Zhao, Y., Li, B., Huang, C.L., et al. (2017). Continental-scale pollution of antibiotic resistance genes. Nature Microbiology, 2, 16270
