TB Research

Inhibitory effects of thiophene-2-thiazole hybrids against sensitive strains and resistant clinical isolates of Mycobacterium tuberculosis

Paulo Fernando da Silva Santos-Júnior, Valnês S. Rodrigues-Junior, Monalisa Silva, Edjan Carlos Dantas da Silva, Marcia Alberton Perelló, Alexia de Matos Czeczot, Cristiano Valim Bizarro, Pablo Machado, et al. (14 authors)

Bioorganic & Medicinal Chemistry Letters · 2026-05

Abstract

. Compound 3c retained bactericidal activity under nutrient-starvation conditions and outperformed isoniazid (INH) in a dormancy model. Cytotoxicity assays in HepG2 and Vero E6 cells showed low toxicity (IC₅₀ > 100 μM). These findings identify 3c as a promising lead scaffold for anti-TB drug development.

MeSH terms

  • Cytotoxicity
  • Vero cell
  • Isoniazid
  • Mycobacterium tuberculosis
  • Chemistry
  • Antimycobacterial
  • Microbiology
  • In vitro
  • Minimum inhibitory concentration
  • Toxicity
  • Tuberculosis
  • Drug resistance
  • Inhibitory postsynaptic potential
  • Bacteria
  • Drug
  • Antibacterial agent
  • Biological activity
  • Lead compound
  • Cell culture
  • Virology