May 13, 2017
International Journal of Antimicrobial Agents (2017)
In vitro activity of a novel compound, Mul-1867, against clinically significant fungi Candida spp. and Aspergillus spp.
| Publication Type | Journal Article |
| Authors | George Tetz, Michael Cynamon, Gregory Hendricks, Daria Vikina Victor Tetz |
| Abstract | There is an urgent need for new antifungal compounds to treat various types of fungal infections, including pulmonary infections. This study was designed to investigate the potency of a novel compound (Mul-1867) against Candida spp. and Aspergillus spp. isolated from patients with fungal pneumonia, cystic fibrosis and chronic obstructive pulmonary disease. Mul-1867 was highly effective against susceptible control strains as well as resistant clinical isolates, with minimum fungicidal concentrations (MFCs) varying from 0.06 µg/mL to 0.5 µg/mL. It was also highly effective against pre-formed 48-h-old biofilms formed by yeasts and moulds. The half-minimal biofilm eradication concentration (MBEC50) was equal to the MFC. The minimum biofilm eradication concentration to eliminate 90% of biofilms (MBEC90) varied from 1 × to 4 × MFC. Scanning electron microscopy revealed morphological changes accompanied by the release of intracellular material from the fungal cells following exposure to Mul-1867. Furthermore, an increased concentration of nucleic acids was found in the medium after 5 min and 20 min of Mul-1867 treatment, indicating leakage of cytoplasmic contents. Overall, these data indicate that Mul-1867 may be a promising inhaled antifungal agent for the treatment and prevention of fungal respiratory infections. |
| Year of Publication | 2017 |
| Journal | International Journal of Antimicrobial Agents |
| DOI | 10.1016/j.ijantimicag.2017.02.011 |