Introduction

008

doi: 10.5617/michael.11417

Antimicrobial Resistance (AMR): A Global Crisis Unfolding

In the complex web of global health concerns, one ominous threat looms larger with each passing day: Antimicrobial Resistance (AMR). The stage is set with a hypothetical scenario, one that echoes throughout history – the emergence of a new, deadly disease, deadlier even than COVID-19. This scenario is not mere fiction but a stark possibility, a dark cloud looming on our collective horizon. AMR, a silent and insidious adversary, is a crisis unfolding on a global scale, with the potential to dwarf the impact of any infectious disease we have faced to date.

One of the most critical aspects of combating AMR is the development of new antibiotics. However, the process is fraught with challenges that are proving increasingly unbeatable. Over the past two decades, the introduction of new antibiotics has been painfully sluggish.

The Plectasin Case: A Ray of Hope Amidst Challenges

Let us delve deeper into the case of Plectasin, a promising antibiotic candidate that faced numerous challenges in its development journey.

Plectasin's story began when researchers discovered it in the black cup fungus (Pseudoplectania nigrella). Plectasin's potent antimicrobial effect made it stand out, especially against Gram-positive bacteria, including those that are frequently the focus of clinical concerns.

Plectasin exhibited remarkable stability in serum and avoided degradation inside the body, rendering it a compelling candidate for therapeutic use. It boasted low toxicity levels and displayed low rates of resistance, which was a significant advantage. Moreover, producing Plectasin was relatively easy to achieve through recombinant technologies in fungi, offering scalability and reproducibility—all these features combined to make Plectasin a seemingly ideal candidate for tackling antibiotic-resistant infections.

But what became of Plectasin?

For the first time in almost two decades since the discovery of this peptide, the key figures in its history have reconvened. This gathering is not just a nostalgic return to the initial discussions; it is a journey to the world of memory, enriched with the perspective of today's understanding of the field. This reunion offers a reflection on past achievements and an exploration of the current and future implications of Plectasin's discovery.