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Targeting Drug-Resistant Tuberculosis with Antimicrobial Peptides: Opportunities and Challenges.

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  • 1Faculty of Pharmacy, Integral University, Lucknow, (UP), India.

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Antimicrobial peptides (AMPs) show promise as a novel tuberculosis (TB) treatment, effectively targeting drug-resistant strains. Advances in peptide engineering and delivery systems are overcoming challenges for clinical application.

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Antimicrobial peptidesanti-tubercular drugsantibiotic resistanceimmunomodulationinnate immunitypeptide engineering.tuberculosis

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Area of Science:

  • Microbiology
  • Immunology
  • Drug Discovery

Background:

  • Tuberculosis (TB), caused by Mycobacterium tuberculosis (M.tb), remains a leading cause of infectious disease deaths globally.
  • The rise of multidrug-resistant (MDR) and extensively drug-resistant (XDR) TB necessitates urgent development of novel therapeutic strategies.

Purpose of the Study:

  • To investigate the potential of antimicrobial peptides (AMPs) as adjunctive agents for TB treatment.
  • To evaluate the immunomodulatory and direct antimycobacterial effects of AMPs.

Main Methods:

  • Reviewed mechanisms of AMP action, including bacterial membrane disruption and interference with intracellular processes.
  • Assessed AMP effects on host immune responses, such as phagosome-lysosome fusion, autophagy induction, and cytokine production.

Main Results:

  • Numerous AMPs (e.g., defensins, LL-37) exhibit potent in vitro and in vivo antimycobacterial activity.
  • Challenges for clinical use include peptide stability and efficient delivery, with potential solutions in peptide engineering and nanoparticle delivery.

Conclusions:

  • AMPs offer a novel therapeutic approach for TB due to their unique mechanisms and ability to combat drug resistance.
  • Ongoing research in peptide engineering, delivery systems, and SAR studies is crucial for overcoming limitations and advancing AMPs for TB therapy.