Cepharanthine Dry Powder Inhaler for the Treatment of Acute Lung Injury

Severe acute respiratory syndrome Coronavirus 2 (SARS-CoV-2) induces a severe cytokine storm that may cause acute lung injury/acute respiratory distress syndrome (ALI/ARDS) with high clinical morbidity and mortality in infected individuals. Cepharanthine (CEP) is a bisbenzylisoquinoline alkaloid iso...

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Main Authors: Di Liang, Wanmei Wang, Guangrui Chen, Jian Li, Guifang Dou, Hui Gan, Peng Han, Lina Du, Ruolan Gu
Format: Article
Language:English
Published: MDPI AG 2023-05-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/28/11/4441
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author Di Liang
Wanmei Wang
Guangrui Chen
Jian Li
Guifang Dou
Hui Gan
Peng Han
Lina Du
Ruolan Gu
author_facet Di Liang
Wanmei Wang
Guangrui Chen
Jian Li
Guifang Dou
Hui Gan
Peng Han
Lina Du
Ruolan Gu
author_sort Di Liang
collection DOAJ
description Severe acute respiratory syndrome Coronavirus 2 (SARS-CoV-2) induces a severe cytokine storm that may cause acute lung injury/acute respiratory distress syndrome (ALI/ARDS) with high clinical morbidity and mortality in infected individuals. Cepharanthine (CEP) is a bisbenzylisoquinoline alkaloid isolated and extracted from <i>Stephania cepharantha Hayata</i>. It exhibits various pharmacological effects, including antioxidant, anti-inflammatory, immunomodulatory, anti-tumor, and antiviral activities. The low oral bioavailability of CEP can be attributed to its poor water solubility. In this study, we utilized the freeze-drying method to prepare dry powder inhalers (DPI) for the treatment of acute lung injury (ALI) in rats via pulmonary administration. According to the powder properties study, the aerodynamic median diameter (D<sub>a</sub>) of the DPIs was 3.2 μm, and the in vitro lung deposition rate was 30.26; thus, meeting the Chinese Pharmacopoeia standard for pulmonary inhalation administration. We established an ALI rat model by intratracheal injection of hydrochloric acid (1.2 mL/kg, pH = 1.25). At 1 h after the model’s establishment, CEP dry powder inhalers (CEP DPIs) (30 mg/kg) were sprayed into the lungs of rats with ALI via the trachea. Compared with the model group, the treatment group exhibited a reduced pulmonary edema and hemorrhage, and significantly reduced content of inflammatory factors (TNF-α, IL-6 and total protein) in their lungs (<i>p</i> < 0.01), indicating that the main mechanism of CEP underlying the treatment of ALI is anti-inflammation. Overall, the dry powder inhaler can deliver the drug directly to the site of the disease, increasing the intrapulmonary utilization of CEP and improving its efficacy, making it a promising inhalable formulation for the treatment of ALI.
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spelling doaj.art-3eb1e069df984910ba0f22a941b4a8302023-11-18T08:16:42ZengMDPI AGMolecules1420-30492023-05-012811444110.3390/molecules28114441Cepharanthine Dry Powder Inhaler for the Treatment of Acute Lung InjuryDi Liang0Wanmei Wang1Guangrui Chen2Jian Li3Guifang Dou4Hui Gan5Peng Han6Lina Du7Ruolan Gu8Department of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, ChinaDepartment of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, ChinaDepartment of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, ChinaDepartment of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, ChinaDepartment of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, ChinaDepartment of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, ChinaDepartment of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, ChinaDepartment of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, ChinaDepartment of Pharmaceutical Sciences, Beijing Institute of Radiation Medicine, Beijing 100850, ChinaSevere acute respiratory syndrome Coronavirus 2 (SARS-CoV-2) induces a severe cytokine storm that may cause acute lung injury/acute respiratory distress syndrome (ALI/ARDS) with high clinical morbidity and mortality in infected individuals. Cepharanthine (CEP) is a bisbenzylisoquinoline alkaloid isolated and extracted from <i>Stephania cepharantha Hayata</i>. It exhibits various pharmacological effects, including antioxidant, anti-inflammatory, immunomodulatory, anti-tumor, and antiviral activities. The low oral bioavailability of CEP can be attributed to its poor water solubility. In this study, we utilized the freeze-drying method to prepare dry powder inhalers (DPI) for the treatment of acute lung injury (ALI) in rats via pulmonary administration. According to the powder properties study, the aerodynamic median diameter (D<sub>a</sub>) of the DPIs was 3.2 μm, and the in vitro lung deposition rate was 30.26; thus, meeting the Chinese Pharmacopoeia standard for pulmonary inhalation administration. We established an ALI rat model by intratracheal injection of hydrochloric acid (1.2 mL/kg, pH = 1.25). At 1 h after the model’s establishment, CEP dry powder inhalers (CEP DPIs) (30 mg/kg) were sprayed into the lungs of rats with ALI via the trachea. Compared with the model group, the treatment group exhibited a reduced pulmonary edema and hemorrhage, and significantly reduced content of inflammatory factors (TNF-α, IL-6 and total protein) in their lungs (<i>p</i> < 0.01), indicating that the main mechanism of CEP underlying the treatment of ALI is anti-inflammation. Overall, the dry powder inhaler can deliver the drug directly to the site of the disease, increasing the intrapulmonary utilization of CEP and improving its efficacy, making it a promising inhalable formulation for the treatment of ALI.https://www.mdpi.com/1420-3049/28/11/4441cepharanthinepulmonary drug deliveryacute lung injurydry powder inhalers
spellingShingle Di Liang
Wanmei Wang
Guangrui Chen
Jian Li
Guifang Dou
Hui Gan
Peng Han
Lina Du
Ruolan Gu
Cepharanthine Dry Powder Inhaler for the Treatment of Acute Lung Injury
Molecules
cepharanthine
pulmonary drug delivery
acute lung injury
dry powder inhalers
title Cepharanthine Dry Powder Inhaler for the Treatment of Acute Lung Injury
title_full Cepharanthine Dry Powder Inhaler for the Treatment of Acute Lung Injury
title_fullStr Cepharanthine Dry Powder Inhaler for the Treatment of Acute Lung Injury
title_full_unstemmed Cepharanthine Dry Powder Inhaler for the Treatment of Acute Lung Injury
title_short Cepharanthine Dry Powder Inhaler for the Treatment of Acute Lung Injury
title_sort cepharanthine dry powder inhaler for the treatment of acute lung injury
topic cepharanthine
pulmonary drug delivery
acute lung injury
dry powder inhalers
url https://www.mdpi.com/1420-3049/28/11/4441
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