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Related Experiment Video

Updated: Mar 25, 2026

Quadruple-Checkerboard: A Modification of the Three-Dimensional Checkerboard for Studying Drug Combinations
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Breaking the Spell: Combating Multidrug Resistant 'Superbugs'.

Shahper N Khan1, Asad U Khan1

  • 1Interdisciplinary Biotechnology Unit, Aligarh Muslim University Aligarh, India.

Frontiers in Microbiology
|March 1, 2016
PubMed
Summary
This summary is machine-generated.

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Methicillin-resistant Staphylococcus aureus (MRSA) presents a critical public health threat, arising from its capacity to resist β-lactam antibiotics due to acquisition of the mecA gene within the staphylococcal cassette chromosome mec (SCCmec). This gene encodes penicillin-binding protein 2a (PBP2a), which impairs binding efficacy of methicillin and other β-lactams. MRSA has evolved into distinct clonal lineages impacting humans and animals alike, reinforcing its significance within...
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Antibiotic resistance in bacteria arises when microorganisms evolve the ability to withstand drugs designed to kill them or inhibit their growth, rendering once-effective treatments useless. This phenomenon, driven by genetic change and selection under antibiotic exposure, poses a profound threat to modern medicine. Mechanisms include drug-inactivating enzymes (e.g., β-lactamases), efflux pumps that eject antibiotics, mutations altering antibiotic targets, decreased drug uptake, and...
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Synergism is a useful mechanism where combining two or more drugs is more effective than each constituent used alone. Such combinations are also called supra-additive interactions. The drugs collectively enhance the final therapeutic effect by acting on different targets. Another advantage is that the low dose of each constituent drug is sufficient to achieve the desired effect. This helps reduce the duration of therapy and lower the adverse effects of these drugs.
Such synergistic combinations...
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Antibiotic resistance is a major public health concern that arises when bacteria evolve mechanisms to withstand the effects of antibiotic treatments. This resistance can be intrinsic, acquired through genetic mutations, or transferred between bacteria via horizontal gene transfer. The development of antibiotic resistance poses significant challenges in treating bacterial infections and necessitates ongoing research to develop new therapeutic strategies.Intrinsic resistance occurs when bacterial...
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The effectiveness of antimicrobial agents depends on various factors influencing their ability to eliminate microbial populations. Larger microbial populations require more time for complete eradication, emphasizing the importance of population size analysis when evaluating antimicrobial efficacy.Microbial resistance to antimicrobial agents varies significantly. Highly resilient microorganisms include endospores, gram-negative bacteria, and non-enveloped viruses, while prions are exceptionally...
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Multidrug-resistant bacteria, particularly ESKAPE pathogens, pose a significant threat due to antibiotic ineffectiveness. This review explores novel antimicrobial agents and advanced technologies to combat this growing public health crisis.

Area of Science:

  • Microbiology
  • Pharmacology
  • Biotechnology

Background:

  • Multidrug-resistant (MDR) bacteria, including the ESKAPE pathogens (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumanii, Pseudomonas aeruginosa, and Enterobacteriaceae), present a critical global health challenge.
  • The increasing ineffectiveness of conventional antibiotics necessitates the development of novel antimicrobial strategies.
  • ESKAPE pathogens are notable for their ability to evade standard antimicrobial treatments.

Purpose of the Study:

  • To review emerging antimicrobial agents with potential as alternative therapeutics.
  • To discuss the application of network pharmacology and functional genomics profiling in antimicrobial drug discovery.
  • To highlight the role of in vivo imaging techniques in identifying new targets and assessing lead compounds.
Keywords:
drug developmentfunctional genomicsin vivo imagingmultidrug-resistantnetwork pharmacology

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Last Updated: Mar 25, 2026

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Main Methods:

  • Literature review focusing on multidrug-resistant bacteria and novel antimicrobial approaches.
  • Overview of network pharmacology and functional genomics profiling methodologies.
  • Discussion of in vivo imaging techniques for drug development.

Main Results:

  • Identification of promising upcoming antimicrobial agents.
  • Explanation of how network pharmacology and functional genomics can accelerate drug discovery.
  • Demonstration of in vivo imaging as a tool for real-time assessment of therapeutic potential.

Conclusions:

  • Novel antimicrobial agents and advanced technologies are crucial for combating MDR bacterial infections.
  • Integrating network pharmacology, functional genomics, and in vivo imaging can optimize drug development decisions.
  • These approaches promise to enhance the selection and predict the efficacy of candidate drugs before clinical trials.