The antibiotic crisis: On the search for novel antibiotics and resistance mechanisms

The antibiotic crisis: On the search for novel antibiotics and resistance mechanisms

2024 | Marc W. Van Goethem, Ramona Marasco, Pei-Ying Hong, Daniele Daffonchio
The antibiotic crisis is a critical global health challenge, driven by the rapid spread of antibiotic-resistant bacteria, which threatens to cause a pandemic with millions of deaths by 2050. Despite the discovery of over 80% of current antibiotics from natural or semi-synthetic sources, the past four decades have seen a lack of new antibiotic discoveries, creating a "antibiotic discovery void." To address this, researchers are exploring microbial oases of interactions—highly competitive environments where microorganisms constantly compete for resources. These environments, such as the rhizosphere, biological soil crusts, deep-sea hydrothermal vents, and the plastisphere, are rich in microbial diversity and may harbor novel antibiotics. The continuous arms race between microorganisms for survival and dominance drives the evolution of unique, undiscovered antibiotics. Antibiotic resistance is primarily managed through antimicrobial resistance genes (ARGs), which are often transferred horizontally between bacteria. The overuse and misuse of antibiotics in clinical, agricultural, and environmental settings have exacerbated this problem, leading to the emergence of multidrug-resistant "superbugs." The presence of persister cells, which are dormant and resistant to antibiotics, further complicates the challenge of combating resistance. To find new antibiotics, researchers are turning to advanced techniques such as metagenomics, artificial intelligence, and machine learning to analyze microbial communities and identify novel compounds. Phage therapy is also being explored as an alternative to traditional antibiotics, offering targeted treatment with minimal impact on the microbiome. The article emphasizes the need for a multifaceted approach to combat antibiotic resistance, including the search for novel antibiotics in microbial oases of interactions, responsible antibiotic use, the development of alternative therapies, and regulatory measures to control antibiotic use. The integration of metagenomic data, advanced modeling, and AI holds great promise for discovering new antimicrobial agents and pathways. The antibiotic crisis demands urgent action to prevent a global health catastrophe.The antibiotic crisis is a critical global health challenge, driven by the rapid spread of antibiotic-resistant bacteria, which threatens to cause a pandemic with millions of deaths by 2050. Despite the discovery of over 80% of current antibiotics from natural or semi-synthetic sources, the past four decades have seen a lack of new antibiotic discoveries, creating a "antibiotic discovery void." To address this, researchers are exploring microbial oases of interactions—highly competitive environments where microorganisms constantly compete for resources. These environments, such as the rhizosphere, biological soil crusts, deep-sea hydrothermal vents, and the plastisphere, are rich in microbial diversity and may harbor novel antibiotics. The continuous arms race between microorganisms for survival and dominance drives the evolution of unique, undiscovered antibiotics. Antibiotic resistance is primarily managed through antimicrobial resistance genes (ARGs), which are often transferred horizontally between bacteria. The overuse and misuse of antibiotics in clinical, agricultural, and environmental settings have exacerbated this problem, leading to the emergence of multidrug-resistant "superbugs." The presence of persister cells, which are dormant and resistant to antibiotics, further complicates the challenge of combating resistance. To find new antibiotics, researchers are turning to advanced techniques such as metagenomics, artificial intelligence, and machine learning to analyze microbial communities and identify novel compounds. Phage therapy is also being explored as an alternative to traditional antibiotics, offering targeted treatment with minimal impact on the microbiome. The article emphasizes the need for a multifaceted approach to combat antibiotic resistance, including the search for novel antibiotics in microbial oases of interactions, responsible antibiotic use, the development of alternative therapies, and regulatory measures to control antibiotic use. The integration of metagenomic data, advanced modeling, and AI holds great promise for discovering new antimicrobial agents and pathways. The antibiotic crisis demands urgent action to prevent a global health catastrophe.
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