ArticleToxicology international
Rifapentine-proliposomes for inhalation: in vitro and in vivo toxicity.
Article in Toxicology international. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 34 citations in OpenAlex.
- Review
- A review of formulations and preclinical studies of inhaled rifampicin for its clinical translation.Drug delivery and translational research · 2023Review
- Application of Lipid-Based Nanocarriers for Antitubercular Drug Delivery: A Review.Pharmaceutics · 2021Review
- Host Bioenergetic Parameters Reveal Cytotoxicity of Antituberculosis Drugs Undetected Using Conventional Viability Assays.Antimicrobial agents and chemotherapy · 2021Article
- Novel Approaches for the Treatment of Pulmonary Tuberculosis.Pharmaceutics · 2020Review
- The Multirole of Liposomes in Therapy and Prevention of Infectious Diseases.Frontiers in immunology · 2018Review
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundOral therapy for pulmonary tuberculosis (TB) treatment suffers from the limitation of hepatic metabolism leading insufficient concentration of antitubercular (anti-TB) drugs in alveolar macrophage which harbors Mycobacterium tuberculosis (MTB). Targeted aerosol delivery of antituberculous drug to lung is efficient for treating local lung TB infection.
objectiveThe present study was aimed to evaluate rifapentine (RPT) loaded proliposomal dry powder for inhalation (RLDPI) for anti-TBactivity and cytotoxicity in vitro. In vivo toxicity study was also undertaken in Wistar rats to determine safe concentration of RLDPI for administration. MATERIALS AND
methodsAnti-TB activity of developed RLDPI was assessed using drug susceptibility testing (DST) on Mycobacteria growth indicator tube (MGIT) method. In vitro cytotoxicity was performed in A549 cell lines and IC50 values were used to compare the cytotoxicity of formulation with pure RPT. In vivo repeated dose toxicity study was undertaken using Wistar rats at three different doses for 28-days by intratracheal insufflations method.
resultsThe results of DST study revealed sensitivity of tubercle bacteria to RLDPI at concentration equivalent to 10 μg/mL of RPT. This study confirmed anti-TB potential of RPT in spray-dried RLDPI, though the spray drying method is reported to reduce activity of drugs. Cytotoxicity study in A549 cells demonstrated that RPT when encapsulated in liposomes as RLDPI was safe to cells as compared to pure RPT. In vivo toxicity study revealed that RPT in the form of RLDPI was safe at 1 and 5 mg/kg dose. However, mortality was seen at higher dose (10 mg/kg), possibly because of liver and kidney damage.
conclusionThus, these studies demonstrated safety of RLDPI for the treatment of pulmonary TB.
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