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El-Emam MMA, El-Demerdash AS, Abdo SA, Abd-Elfatah EB, El-Sayed MM, Qelliny MR, Eldin ZE, Shehata AA. The ameliorative role of Aloe vera-loaded chitosan nanoparticles on Staphylococcus aureus induced acute lung injury: Targeting TLR/NF-κB signaling pathways. Open Vet J 2024; 14:416-427. [PMID: 38633182 PMCID: PMC11018431 DOI: 10.5455/ovj.2024.v14.i1.38] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Accepted: 12/15/2023] [Indexed: 04/19/2024] Open
Abstract
Background Acute lung injury (ALI) is a severe condition distinguished by inflammation and impaired gas exchange in the lungs. Staphylococcus aureus, a common bacterium, can cause ALI through its virulence factors. Aloe vera is a medicinal plant that has been traditionally used to treat a variety of illnesses due to its anti-inflammatory properties. Chitosan nanoparticles are biocompatible and totally biodegradable materials that have shown potential in drug delivery systems. Aim To explore the antibacterial activity of Aloe vera-loaded chitosan nanoparticles (AV-CS-NPs) against S. aureus in vitro and in vivo with advanced techniques. Methods The antibacterial efficacy of AV-CS-NPs was evaluated through a broth microdilution assay. In addition, the impact of AV-CS-NPs on S. aureus-induced ALI in rats was examined by analyzing the expression of genes linked to inflammation, oxidative stress, and apoptosis. Furthermore, rat lung tissue was scanned histologically. The rats were divided into three groups: control, ALI, and treatment with AV-CS-NPs. Results The AV-CS-NPs that were prepared exhibited clustered semispherical and spherical forms, having an average particle size of approximately 60 nm. These nanoparticles displayed a diverse structure with an uneven distribution of particle sizes. The maximum entrapment efficiency of 95.5% ± 1.25% was achieved. The obtained findings revealed that The minimum inhibitory concentration and minimum bactericidal concentration values were determined to be 5 and 10 ug/ml, respectively, indicating the potent bactericidal effect of the NPs. Also, S. aureus infected rats explored upregulation in the mRNA expression of TLR2 and TLR4 compared to healthy control groups. AV-CS-NP treatment reverses the case where there was repression in mRNA expression of TLR2 and TLR4 compared to S. aureus-treated rats. Conclusion These NPs can serve as potential candidates for the development of alternative antimicrobial agents.
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Affiliation(s)
- Mahran M. Abd El-Emam
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Azza S. El-Demerdash
- Laboratory of Biotechnology, Agriculture Research Center (ARC), Department of Microbiology, Animal Health Research Institute (AHRI), Zagazig, Egypt
| | - Samar A. Abdo
- Department of Biochemistry and Molecular Biology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Eman B. Abd-Elfatah
- Department of Animal Medicine, Infectious Diseases, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Marwa M. El-Sayed
- Department of Pharmaceutics, Faculty of Pharmacy, Minia University, Minia, Egypt
| | - Milad R. Qelliny
- Department of Pharmaceutics, Faculty of Pharmacy, Minia University, Minia, Egypt
| | - Zienab E. Eldin
- Department of Materials Science and Nanotechnology, Faculty of Postgraduate Studies for Advanced Sciences, Beni-Suef University, Beni-Suef, Egypt
| | - Ayman A. Shehata
- Department of Animal Medicine, Infectious Diseases, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
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Wang X, Zhou L, Ye S, Liu S, Chen L, Cheng Z, Huang Y, Wang B, Pan M, Wang D, Wang L, Lei Z, Im YJ, Li X. rFGF4 alleviates lipopolysaccharide-induced acute lung injury by inhibiting the TLR4/NF-κB signaling pathway. Int Immunopharmacol 2023; 117:109923. [PMID: 36842235 DOI: 10.1016/j.intimp.2023.109923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 01/30/2023] [Accepted: 02/17/2023] [Indexed: 02/28/2023]
Abstract
Acute lung injury (ALI) is a serious and common clinical disease. Despite significant progress in ALI treatment, the morbidity and mortality rates remain high. However, no effective drug has been discovered for ALI. FGF4, a member of the FGF family, plays an important role in the regulation of various physiological and pathological processes. Therefore, in the present study, we aimed to study the protective effects of FGF4 against LPS-induced lung injury in vivo and in vitro. We found that rFGF4 treatment improved the lung W/D weight ratio, the survival rate, immune cell infiltration and protein concentrations in mice with LPS-induced ALI. Histological analysis revealed that rFGF4 significantly attenuated lung tissue injury and cell apoptosis. Furthermore, rFGF4 inhibited the activation of the TLR4/NF-κB signaling pathway and the production of pro-inflammatory mediators in LPS-injured lung tissues, murine alveolar macrophages (MH-S) and murine pulmonary epithelial (MLE-12) cells. The results of cell experiments further verified that rFGF4 inhibited the production of inflammatory mediators in MH-S cells and MLE-12 cells by regulating the TLR4/NF-κB signaling pathway. These results revealed that rFGF4 protected lung tissues and inhibited inflammatory mediators in mice with LPS-induced ALI by inhibiting the TLR4/NF-κB signaling pathway in MH-S and MLE-12 cells.
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Affiliation(s)
- Xianshi Wang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China; College of Pharmacy, Chonnam National University, Gwangju 61186, South Korea
| | - Liya Zhou
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Shasha Ye
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Sidan Liu
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Lin Chen
- College of Pharmacy, Chonnam National University, Gwangju 61186, South Korea
| | - Zizhao Cheng
- Department of Pharmacy, Xuanwu Hospital of Capital Medical University, Beijing 100053, China
| | - Yuli Huang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Beibei Wang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Minling Pan
- School of Life and Environmental Science, Wenzhou University, Wenzhou, Zhejiang 325035, China
| | - Dezhong Wang
- School of Life and Environmental Science, Wenzhou University, Wenzhou, Zhejiang 325035, China
| | - Luhai Wang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Zhenli Lei
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
| | - Young Jun Im
- College of Pharmacy, Chonnam National University, Gwangju 61186, South Korea.
| | - Xiaokun Li
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China.
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Dou Q, Tong H, Yang Y, Zhang H, Gan H. PICK1 Deficiency Exacerbates Sepsis-Associated Acute Kidney Injury. BIOMED RESEARCH INTERNATIONAL 2021; 2021:9884297. [PMID: 34307672 PMCID: PMC8285178 DOI: 10.1155/2021/9884297] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 06/19/2021] [Accepted: 06/24/2021] [Indexed: 12/19/2022]
Abstract
We performed in vitro and in vivo experiments to explore the role of protein kinase C-binding protein 1 (PICK1), an intracellular transporter involved in oxidative stress-related neuronal diseases, in sepsis-related acute kidney injury (AKI). Firstly, PCR, western blotting, and immunohistochemistry were used to observe the expression of PICK1 after lipopolysaccharide- (LPS-) induced AKI. Secondly, by inhibiting PICK1 in vivo and silencing PICK1 in vitro, we further explored the effect of PICK1 on AKI. Finally, the relationship between PICK1 and oxidative stress and the related mechanisms were explored. We found that the expression of PICK1 was increased in LPS-induced AKI models both in vitro and in vivo. PICK1 silencing significantly aggravated LPS-induced apoptosis, accompanied by ROS production in renal tubular epithelial cells. FSC231, a PICK1-specific inhibitor, aggravated LPS-induced kidney injury. Besides, NAC (N-acetylcysteine), a potent ROS scavenger, significantly inhibited the PICK1-silencing-induced apoptosis. In conclusion, PICK1 might protect renal tubular epithelial cells from LPS-induced apoptosis by reducing excessive ROS, making PICK1 a promising preventive target in LPS-induced AKI.
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Affiliation(s)
- Qian Dou
- Department of Nephrology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Hang Tong
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Yichun Yang
- Department of Gastroenterology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Han Zhang
- Department of Nephrology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Hua Gan
- Department of Nephrology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
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