1
|
McDonald RA, Nagy SG, Chambers M, Broberg CA, Ahonen MJR, Schoenfisch MH. Nitric oxide-releasing prodrug for the treatment of complex Mycobacterium abscessus infections. Antimicrob Agents Chemother 2024; 68:e0132723. [PMID: 38206003 PMCID: PMC10848776 DOI: 10.1128/aac.01327-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 11/17/2023] [Indexed: 01/12/2024] Open
Abstract
Non-tuberculosis mycobacteria (NTM) can cause severe respiratory infection in patients with underlying pulmonary conditions, and these infections are extremely difficult to treat. In this report, we evaluate a nitric oxide (NO)-releasing prodrug [methyl tris diazeniumdiolate (MD3)] against a panel of NTM clinical isolates and as a treatment for acute and chronic NTM infections in vivo. Its efficacy in inhibiting growth or killing mycobacteria was explored in vitro alongside evaluation of the impact to primary human airway epithelial tissue. Airway epithelial tissues remained viable after exposure at concentrations of MD3 needed to kill mycobacteria, with no inherent toxic effect from drug scaffold after NO liberation. Resistance studies conducted via serial passage with representative Mycobacterium abscessus isolates demonstrated no resistance to MD3. When administered directly into the lung via intra-tracheal administration in mice, MD3 demonstrated significant reduction in M. abscessus bacterial load in both acute and chronic models of M. abscessus lung infection. In summary, MD3 is a promising treatment for complex NTM pulmonary infection, specifically those caused by M. abscessus, and warrants further exploration as a therapeutic.
Collapse
Affiliation(s)
| | - Sarah G. Nagy
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | | | - Chris A. Broberg
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | | | - Mark H. Schoenfisch
- Vast Therapeutics, Durham, North Carolina, USA
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
- Division of Pharmacoengineering and Molecular Pharmaceutics, UNC Eshelman School of Pharmacy, Chapel Hill, North Carolina, USA
| |
Collapse
|
2
|
Grasemann H, Klingel M, Avolio J, Prentice C, Gonska T, Tullis E, Ratjen F. Long-term effect of CFTR modulator therapy on airway nitric oxide. Eur Respir J 2020; 55:13993003.01113-2019. [PMID: 31601715 DOI: 10.1183/13993003.01113-2019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 09/18/2019] [Indexed: 11/05/2022]
Affiliation(s)
- Hartmut Grasemann
- Division of Respiratory Medicine, Dept of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada .,Translational Medicine, SickKids Research Institute, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - Michelle Klingel
- Translational Medicine, SickKids Research Institute, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - Julie Avolio
- Translational Medicine, SickKids Research Institute, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - Carley Prentice
- Division of Respiratory Medicine, Dept of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - Tanja Gonska
- Translational Medicine, SickKids Research Institute, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada.,Division of Gastroenterology, Dept of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - Elizabeth Tullis
- Division of Respirology and Keenan Research Centre of Li Ka Shing Knowledge Institute, Dept of Medicine, St Michael's Hospital, University of Toronto, Toronto, ON, Canada
| | - Felix Ratjen
- Division of Respiratory Medicine, Dept of Pediatrics, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada.,Translational Medicine, SickKids Research Institute, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| |
Collapse
|