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Related Concept Videos

Production of Antibiotics01:27

Production of Antibiotics

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Penicillin, one of the earliest and most widely used antibiotics, is produced industrially by the filamentous fungus Penicillium chrysogenum. Large stirred-tank bioreactors ranging from tens to hundreds of thousands of liters maintain tightly controlled temperature, pH, and dissolved oxygen conditions to support fungal metabolism and maximize antibiotic yield. Penicillin is a secondary metabolite, synthesized primarily during the stationary growth phase, which requires a carefully managed...
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Development of Antibiotic Resistance01:30

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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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Clinical Significance of Antibiotic Resistance01:25

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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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Mechanism of Antibiotic Resistance in MRSA01:25

Mechanism of Antibiotic Resistance in MRSA

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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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Antibiotic Selection00:57

Antibiotic Selection

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Production of Pharmaceuticals01:30

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Industrial insulin production uses genetically engineered E. coli expressing a proinsulin gene controlled by a tryptophan promoter and containing a methionine linker for later cleavage. The cells also carry ampicillin resistance for selective growth. Seed cultures are stored at −80 °C and production begins by thawing a small amount to inoculate starter cultures, which are progressively scaled to a 50,000-L bioreactor. In the bioreactor, E. coli grow in nutrient-rich media under...
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Antibiotic Dereplication Using the Antibiotic Resistance Platform
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Time for a change: addressing R&D and commercialization challenges for antibacterials.

David J Payne1, Linda Federici Miller2, David Findlay3

  • 1Infectious Diseases Therapeutic Area Unit, GlaxoSmithKline, 1250 South Collegeville Road, Collegeville, PA 19426, USA david.j.payne@gsk.com.

Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
|April 29, 2015
PubMed
Summary

Antimicrobial resistance (AMR) is a growing crisis with few new antibacterial drugs in development. This paper explores scientific, regulatory, and economic challenges, proposing solutions like diagnostics and industry-academia partnerships to revitalize antibacterial research.

Keywords:
antibacterialschallengescommercialization

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Area of Science:

  • Infectious Diseases
  • Drug Discovery
  • Antimicrobial Resistance (AMR)

Background:

  • The antibacterial drug development pipeline is critically low, with increasing resistance to existing treatments.
  • Multinational pharmaceutical companies have largely exited the antibacterial research and development (R&D) space.
  • Key challenges include scientific complexities, regulatory hurdles, and poor return on investment.

Purpose of the Study:

  • To examine the multifaceted challenges hindering antibacterial drug development.
  • To propose actionable strategies for revitalizing the antibacterial R&D pipeline.
  • To foster collaboration and innovation in combating antimicrobial resistance.

Main Methods:

  • Analysis of scientific, clinical, regulatory, and economic factors affecting antibacterial R&D.
  • Review of current industry and academic research landscapes.
  • Exploration of potential new commercial models and diagnostic technologies.

Main Results:

  • Identified critical need for a broader scientific agenda in antibacterial discovery.
  • Proposed enhanced integration between industry and academia.
  • Highlighted the necessity for streamlined global regulatory pathways and incentives.
  • Emphasized the transformative potential of point-of-care diagnostics.

Conclusions:

  • Addressing the antimicrobial resistance crisis requires a multi-pronged approach.
  • Innovation in drug discovery, regulatory processes, and commercial models is essential.
  • Global collaboration among academia, industry, and governments is crucial for success.