Unnatural Endotype B PPAPs as Novel Compounds with Activity against Mycobacterium tuberculosis

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

  • Philipp Peslalz - , Chair of Organic Chemistry I, TUD Dresden University of Technology (Author)
  • Mark Grieshober - , Ulm University Medical Center (Author)
  • Frank Kraus - , University of Stuttgart (Author)
  • Anton Bleisch - , Chair of Organic Chemistry I, TUD Dresden University of Technology (Author)
  • Flavia Izzo - , University of Stuttgart (Author)
  • Dajana Lichtenstein - , Federal Institute for Risk Assessment (Author)
  • Helen Hammer - , SIGNATOPE GmbH, Markwiesenstr. 55, Reutlingen 72770, Germany. (Author)
  • Andreas Vorbach - , University of Tübingen (Author)
  • Kyoko Momoi - , University of Tübingen (Author)
  • Ulrich M Zanger - , University of Tübingen (Author)
  • Heike Brötz-Oesterhelt - , German Center for Infection Research (Author)
  • Albert Braeuning - , Federal Institute for Risk Assessment (Author)
  • Bernd Plietker - , Chair of Organic Chemistry I, TUD Dresden University of Technology, University of Stuttgart (Author)
  • Steffen Stenger - , Ulm University Medical Center (Author)

Abstract

Pre-SARS-CoV-2, tuberculosis was the leading cause of death by a single pathogen. Repetitive exposure of Mycobacterium tuberculosis(Mtb) supported the development of multidrug- and extensively drug-resistant strains, demanding novel drugs. Hyperforin, a natural type A polyprenylated polycyclic acylphloroglucinol from St. John's wort, exhibits antidepressant and antibacterial effects also against Mtb. Yet, Hyperforin's instability limits the utility in clinical practice. Here, we present photo- and bench-stable type B PPAPs with enhanced antimycobacterial efficacy. PPAP22 emerged as a lead compound, further improved as the sodium salt PPAP53, drastically enhancing solubility. PPAP53 inhibits the growth of virulent extracellular and intracellular Mtb without harming primary human macrophages. Importantly, PPAP53 is active against drug-resistant strains of Mtb. Furthermore, we analyzed the in vitro properties of PPAP53 in terms of CYP induction and the PXR interaction. Taken together, we introduce type PPAPs as a new class of antimycobacterial compounds, with remarkable antibacterial activity and favorable biophysical properties.

Details

Original languageEnglish
Pages (from-to)15073-15083
Number of pages11
JournalJournal of medicinal chemistry
Volume66
Issue number22
Publication statusPublished - 23 Nov 2023
Peer-reviewedYes

External IDs

Scopus 85177072879
ORCID /0000-0001-8423-6173/work/165454284

Keywords

Sustainable Development Goals

Keywords

  • Humans, Mycobacterium tuberculosis, Terpenes/pharmacology, Tuberculosis, Anti-Bacterial Agents/pharmacology, Antitubercular Agents/pharmacology