1
|
Xu Y, Bao L, Cao S, Pang B, Zhang J, Zhang Y, Chen M, Wang Y, Sun Q, Zhao R, Guo S, Sun J, Cui X. Pharmacological effects and mechanism of Maxing Shigan decoction in the treatment of Pseudomonas aeruginosa pneumonia. J Ethnopharmacol 2024; 320:117424. [PMID: 37984543 DOI: 10.1016/j.jep.2023.117424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 11/05/2023] [Accepted: 11/11/2023] [Indexed: 11/22/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Maxing Shigan Decoction (MXSG) is a traditional Chinese Medicine effectively used in respiratory infections and bacterial pneumonia. However, the mechanism of MXSG treating acute Pseudomonas aeruginosa (P. aeruginosa) pneumonia is still unclear. AIM OF THE STUDY This study aimed to investigate the therapeutic effects of MXSG on acute P. aeruginosa pneumonia and explore its potential mechanisms. MATERIALS AND METHODS HPLC-MS analysis was performed to analyze the chemical composition. Antibacterial effects in vitro were evaluated by minimum inhibitory concentration (MIC). Forty-five male BALB/c mice were divided into control group, model group, levofloxacin group, MXSG-L (7.7 g/kg/d), and MXSG-H group (15.4 g/kg/d). Mice were intranasal instillation with P. aeruginosa to induce acute P. aeruginosa pneumonia model. Levofloxacin and MXSG were administered by oral gavage once a day. After 3 days of treatment, the lung index measurement, micro-CT, arterial blood gas analysis, bacteria load determination, and HE staining were performed. Network pharmacological analysis and transcriptome sequencing were employed to predict the potential mechanisms of MXSG on bacterial pneumonia. The expressions of relating genes were detected by immunofluorescence, Western blot, and RT-PCR. RESULTS In vitro, MIC of P. aeruginosa is greater than 500 mg/mL. In the treatment of acute P. aeruginosa pneumonia model, MXSG significantly improved body weight loss, lung index, and pulmonary lesions. MXSG treatment also reduced the bacterial load and ameliorated oxygen saturation significantly. Transcriptomes, immunofluorescence, Western blot, and RT-PCR analysis showed MXSG treating acute P. aeruginosa pneumonia through the IL-17 signaling pathway and HIF-1α/IL-6/STAT3 signaling pathway. CONCLUSIONS We demonstrated the efficacy and mechanism of MXSG in the treatment of acute P. aeruginosa pneumonia, which provides a scientific basis for its clinical application.
Collapse
Affiliation(s)
- Yingli Xu
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China.
| | - Lei Bao
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China.
| | - Shan Cao
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China.
| | - Bo Pang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China.
| | - Jingsheng Zhang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China.
| | - Yu Zhang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China.
| | - Mengping Chen
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China.
| | - Yaxin Wang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China.
| | - Qiyue Sun
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China.
| | - Ronghua Zhao
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China.
| | - Shanshan Guo
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China.
| | - Jing Sun
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China.
| | - Xiaolan Cui
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China.
| |
Collapse
|
2
|
Jia X, Gu M, Dai J, Wang J, Zhang Y, Pang Z. Quercetin attenuates Pseudomonas aeruginosa-induced acute lung inflammation by inhibiting PI3K/AKT/NF-κB signaling pathway. Inflammopharmacology 2024:10.1007/s10787-023-01416-5. [PMID: 38310155 DOI: 10.1007/s10787-023-01416-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 12/16/2023] [Indexed: 02/05/2024]
Abstract
Pseudomonas aeruginosa is an opportunistic pathogen that commonly causes infections in immunocompromised individuals with significant morbidity and mortality. Quercetin is a natural flavonoid abundantly present in fruits and vegetables, exerting potent anti-inflammatory effects in treatment of various diseases. However, the molecular mechanisms of quercetin in treatment of P. aeruginosa-induced acute lung inflammation are unclear. In this study, we exploited network pharmacology- and molecular docking-based approach to explore the potential mechanisms of quercetin against P. aeruginosa pneumonia, which was further validated via in vivo and in vitro experiments. The in vivo experiments demonstrated that quercetin alleviated the P. aeruginosa-induced lung injury by diminishing neutrophil infiltration and production of proinflammatory cytokines (IL-1β, IL-6, and TNF), which was associated with decreased mortality. Moreover, the quercetin-treated mice displayed decreased phosphorylation levels of PI3K, AKT, IκBα, and NF-κB p65 in lung tissues compared to non-drug-treated mice. Similarly, the in vitro study showed that the phosphorylation of these regulatory proteins and production of the proinflammatory cytokines were impaired in the quercetin-pretreated macrophages upon P. aeruginosa infection. Altogether, this study suggested that quercetin reduced the P. aeruginosa-induced acute lung inflammation by suppressing PI3K/AKT/NF-κB signaling pathway.
Collapse
Affiliation(s)
- Xiaolei Jia
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, 4655 University Road, Jinan, 250355, China
| | - Mengdi Gu
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, 4655 University Road, Jinan, 250355, China
| | - Jiangqin Dai
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, 4655 University Road, Jinan, 250355, China
| | - Jue Wang
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, 4655 University Road, Jinan, 250355, China
| | - Yingying Zhang
- School of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, 4655 University Road, Jinan, 250355, China.
| | - Zheng Pang
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, 4655 University Road, Jinan, 250355, China.
| |
Collapse
|
3
|
Gu M, Su W, Dai J, Wang J, Jia X, Yao J, Zhang G, Zhu Q, Pang Z. Jingfang granule alleviates Pseudomonas aeruginosa-induced acute lung inflammation through suppression of STAT3/IL-17/NF-κB pathway based on network pharmacology analysis and experimental validation. J Ethnopharmacol 2024; 318:116899. [PMID: 37454750 DOI: 10.1016/j.jep.2023.116899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 06/11/2023] [Accepted: 07/08/2023] [Indexed: 07/18/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Pseudomonas aeruginosa is an opportunistic bacterial pathogen which is the second leading cause of hospital-acquired pneumonia. Jingfang granule (JFG) is an herbal formula of Traditional Chinese medicine (TCM) widely used in treatment of acute respiratory tract infections in China. However, the molecular mechanisms of JFG in treatment of P. aeruginosa-induced acute pneumonia are not clear. AIM OF STUDY This study aimed to investigate the mechanisms underlying the effects of JFG on P. aeruginosa-induced acute inflammation using a mouse model of bacterial acute pneumonia. MATERIALS AND METHODS The chemical components and targets of JFG were retrieved from Traditional Chinese Medicine Systems Pharmacology (TCMSP) database, and the P. aeruginosa pneumonia-related targets were obtained from the disease databases, including Online Mendelian Inheritance in Man (OMIM), GeneCards and DisGeNet. The protein-protein interaction (PPI) network was constructed using STRING database. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis were performed using the Database for Annotation, Visualization and Integrated Discovery (DAVID). Molecular docking was performed using AutoDockTools 1.5.6. Further in vivo experiments employed a mouse model of P. aeruginosa acute pneumonia to verify the target proteins and signaling pathways affected by JFG, which were predicted by the network pharmacology analysis. RESULTS A total of 218 active components and 257 targets of JFG were retrieved from TCMSP database. Moreover, 99 intersectant targets were obtained between the 257 JFG targets and 694 disease targets. Among the intersectant targets, STAT3, IL-6, AKT1, TNF, MAPK1, MAPK3 and EGFR were identified to be the key therapeutic targets through PPI network analysis, and STAT3 was in the center of the network, which is a key regulator of IL-17 expression. KEGG pathway enrichment analysis suggested that IL-17 signaling pathway was one of the crucial inflammatory pathways affected by JFG in treatment of P. aeruginosa pneumonia. Furthermore, the in vivo experiments demonstrated that the JFG-treated mice displayed reduced proinflammatory cytokine production (IL-17, IL-1β, IL-6 and TNF), diminished neutrophil infiltration and decreased mortality, compared with the non-drug-treated mice during P. aeruginosa lung infection. Moreover, the expression or phosphorylation levels of the key regulators in STAT3/IL-17/NF-κB axis including STAT3, ERK1/2 (MAPK3/1), AKT, NF-κB p65 and RORγt were significantly reduced in the lung tissues of the JFG-treated mice. CONCLUSION JFG was effective in treatment of P. aeruginosa acute lung infection, which reduced inflammatory responses through suppressing STAT3/IL-17/NF-κB pathway.
Collapse
Affiliation(s)
- Mengdi Gu
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China.
| | - Wen Su
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China.
| | - Jiangqin Dai
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China.
| | - Jue Wang
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China.
| | - Xiaolei Jia
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China.
| | - Jingchun Yao
- State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine, Lunan Pharmaceutical Group Co. Ltd., Linyi, 276005, China.
| | - Guimin Zhang
- State Key Laboratory of Generic Manufacture Technology of Chinese Traditional Medicine, Lunan Pharmaceutical Group Co. Ltd., Linyi, 276005, China.
| | - Qingjun Zhu
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China.
| | - Zheng Pang
- Innovative Institute of Chinese Medicine and Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, 250355, China.
| |
Collapse
|
4
|
Cui X, Xu X, Hu Y, Li R, Liu Q. Mechanism of Qiguiyin Decoction Treats Pulmonary Infection Caused by Pseudomonas aeruginosa Based on Gut Microbiota and Metabolomics. Infect Drug Resist 2023; 16:3073-3084. [PMID: 37222987 PMCID: PMC10202261 DOI: 10.2147/idr.s405033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 05/09/2023] [Indexed: 05/25/2023] Open
Abstract
Background Qiguiyin decoction (QGYD) was a traditional Chinese medicine (TCM) used to treat Pseudomonas aeruginosa infection in China. This study investigated the therapeutic effect and the potential mechanism of QGYD on carbapenem-resistant Pseudomonas aeruginosa (CRPA) infection. Materials and Methods Pulmonary infections were induced in mice by CRPA. The therapeutic effect of QGYD was evaluated by lung index and pulmonary pathology. The potential effects of QGYD on intestinal flora were detected by gut microbiome. The overall metabolism regulation of QGYD in blood was investigated by metabonomics. Next, the correlation between intestinal flora and metabolites was analyzed to illustrate the relationship between the regulatory effects of QGYD on metabolites and the beneficial effects of intestinal flora. Results QGYD has significant therapeutic effect on CRPA infection. QGYD profoundly inhibited the excessive accumulation of Deferribacteres and Mucispirillum at phylum and genus levels, respectively. Eleven potential metabolites that were abnormally expressed by CRPA infection and significantly reversed by QGYD were identified. Ten of the eleven metabolites significantly regulated by QGYD were related to Deferribacteres. Deferribacteres showed significant positive correlation with DL-lactic acid, phenylalanine and other metabolites and significant negative correlation with vitamin k1. At the genus level, Mucispirillum was closely related to metabolites significantly regulated by QGYD. Mucispirillum was positively correlated with metabolites such as Dl-lactate and negatively correlated with vitamin k1. Conclusion QGYD can improve CRPA infection and has the effect of regulating intestinal flora and metabolism. It was a promising drug against infection.
Collapse
Affiliation(s)
- Xuran Cui
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, 100010, People’s Republic of China
- Beijing Institute of Chinese Medicine, Beijing, 100010, People’s Republic of China
- Beijing Key Laboratory of Basic Research with Traditional Chinese Medicine on Infectious Diseases, Beijing, 100010, People’s Republic of China
| | - Xiaolong Xu
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, 100010, People’s Republic of China
- Beijing Institute of Chinese Medicine, Beijing, 100010, People’s Republic of China
- Beijing Key Laboratory of Basic Research with Traditional Chinese Medicine on Infectious Diseases, Beijing, 100010, People’s Republic of China
| | - Yahui Hu
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, 100010, People’s Republic of China
- Beijing Key Laboratory of Basic Research with Traditional Chinese Medicine on Infectious Diseases, Beijing, 100010, People’s Republic of China
| | - Rui Li
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, 100010, People’s Republic of China
- Beijing Key Laboratory of Basic Research with Traditional Chinese Medicine on Infectious Diseases, Beijing, 100010, People’s Republic of China
| | - Qingquan Liu
- Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing, 100010, People’s Republic of China
- Beijing Institute of Chinese Medicine, Beijing, 100010, People’s Republic of China
- Beijing Key Laboratory of Basic Research with Traditional Chinese Medicine on Infectious Diseases, Beijing, 100010, People’s Republic of China
| |
Collapse
|
5
|
Zhang MN, Yuan YL, Ao SH. Advances in the study of myeloid-derived suppressor cells in infectious lung diseases. Front Immunol 2023; 14:1125737. [PMID: 37063919 PMCID: PMC10090681 DOI: 10.3389/fimmu.2023.1125737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 03/17/2023] [Indexed: 03/31/2023] Open
Abstract
Myeloid-derived suppressor cells (MDSCs) are a heterogeneous population of immature cells capable of inhibiting T-cell responses. MDSCs have a crucial role in the regulation of the immune response of the body to pathogens, especially in inflammatory response and pathogenesis during anti-infection. Pathogens such as bacteria and viruses use MDSCs as their infectious targets, and even some pathogens may exploit the inhibitory activity of MDSCs to enhance pathogen persistence and chronic infection of the host. Recent researches have revealed the pathogenic significance of MDSCs in pathogens such as bacteria and viruses, despite the fact that the majority of studies on MDSCs have focused on tumor immune evasion. With the increased prevalence of viral respiratory infections, the resurgence of classical tuberculosis, and the advent of medication resistance in common bacterial pneumonia, research on MDSCs in these illnesses is intensifying. The purpose of this work is to provide new avenues for treatment approaches to pulmonary infectious disorders by outlining the mechanism of action of MDSCs as a biomarker and therapeutic target in pulmonary infectious diseases.
Collapse
Affiliation(s)
- Meng-Nan Zhang
- College of Integrated Chinese and Western Medicine and the Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, Sichuan, China
| | - Yu-Lai Yuan
- The Department of Respirology of the Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, Sichuan, China
| | - Su-Hua Ao
- The Department of Respirology of the Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, Sichuan, China
- *Correspondence: Su-Hua Ao,
| |
Collapse
|
6
|
Jiang S, Deng Y, Long Z, Liu P, Hong J, Wei T, Zhang Y, Sun S, Zhuo S, Shang L. Reduction of pyocyanin synthesis and antibiotic resistance in Pseudomonas aeruginosa by low concentration ethanol. FEMS Microbiol Lett 2023; 370:fnad069. [PMID: 37451707 DOI: 10.1093/femsle/fnad069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 07/12/2023] [Accepted: 07/13/2023] [Indexed: 07/18/2023] Open
Abstract
Pseudomonas aeruginosa is a common bacteria that may cause a wide range of severe illnesses in humans. One of the nonantibiotic therapies, antivirulence factor therapy, has attracted ongoing interest. Screening for and investigating bacterial virulence factor inhibitors is critical for the development of antivirulence factor treatments. Pyocyanin is P. aeruginosa's distinctive pigment, and it plays a key role in infection. The impact of low concentration ethanol on pyocyanin production was investigated in this research. Pyocyanin production was found both subjectively and quantitatively. The effects of ethanol on the expression of pyocyanin production genes were studied using qRT-PCR and western blotting. The findings demonstrated that low concentrations of ethanol (as little as 0.1%) greatly suppressed pyocyanin production without affecting P. aeruginosa growth. The degree of inhibition increased as the ethanol contentration rose. Ethanol inhibits the expression of genes involved in pyocyanin production. This inhibitory impact was mostly seen at the protein level. Further research revealed that ethanol increased the expression of the post-transcriptional regulator RsmA, which inhibits pyocyanin production. Given the favorable relationship between pyocyanin production and antibiotic resistance, the impact of low concentration ethanol on various antibiotics was investigated. Ethanol lowered antibiotic resistance in P. aeruginosa, presumably by inhibiting pyocyanin.
Collapse
Affiliation(s)
- Shijie Jiang
- School of Life Science and Engineering, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, Sichuan Province 621010, China
| | - Yunfeng Deng
- School of Life Science and Engineering, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, Sichuan Province 621010, China
| | - Zhijian Long
- School of Life Science and Engineering, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, Sichuan Province 621010, China
| | - Peng Liu
- School of Basic Medicine, Guangxi University of Chinese Medicine, 13 Wuhe Dadao, Nanning City, Guangxi Province 530200, China
| | - Jing Hong
- School of Basic Medicine, Guangxi University of Chinese Medicine, 13 Wuhe Dadao, Nanning City, Guangxi Province 530200, China
| | - Tingzhou Wei
- School of Life Science and Engineering, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, Sichuan Province 621010, China
| | - Yu Zhang
- School of Life Science and Engineering, Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, Sichuan Province 621010, China
| | - Shanshan Sun
- School of Basic Medicine, Guangxi University of Chinese Medicine, 13 Wuhe Dadao, Nanning City, Guangxi Province 530200, China
| | - Shaoyuan Zhuo
- School of Basic Medicine, Guangxi University of Chinese Medicine, 13 Wuhe Dadao, Nanning City, Guangxi Province 530200, China
| | - Liguo Shang
- School of Basic Medicine, Guangxi University of Chinese Medicine, 13 Wuhe Dadao, Nanning City, Guangxi Province 530200, China
| |
Collapse
|
7
|
Ye Z, Ye L, Li D, Lin S, Deng W, Zhang L, Liang J, Li J, Wei Q, Wang K. Effects of daphnetin on biofilm formation and motility of pseudomonas aeruginosa. Front Cell Infect Microbiol 2022; 12:1033540. [DOI: 10.3389/fcimb.2022.1033540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 11/02/2022] [Indexed: 11/19/2022] Open
Abstract
IntroductionPseudomonas aeruginosa is a common clinical opportunistic pathogen. Antibiotic resistance of P. aeruginosa is frequent, and it affects the clinical curative effect and leads to recurrent infections, disease progression, and difficult treatment, especially in cystic fibrosis patients. The drug-resistance mechanism of P. aeruginosa is complex, and biofilms play an important role. Given the widespread antibiotic resistance of P. aeruginosa, the discovery of a drug that can prevent or eradicate biofilm formation is imperative. Daphnetin (DAP), a coumarin derivative, is a safe, non-toxic, natural compound with antibacterial and anti-biofilm properties. Herein, this study highlights the bacterial motility effects, antibacterial effect, pyocyanin production, and anti-biofilm potential of DAP against P. aeruginosa.MethodsIn this study, the minimal inhibitory concentration of DAP against P. aeruginosa was determined using the microdilution method. The antibiofilm activity of DAP against P. aeruginosa was determined using crystal violet staining, colony-forming unit enumeration, and scanning electron microscopy. The effect of DAP on P. aeruginosa motility was detected using the swimming, swarming, and twitching agar plates to measure the diameter of the concentric area.ResultsWe found that DAP at concentrations of 0.445–1.781 mg/mL and 0.89–1.781 mg/mL can effectively inhibit biofilm formation and eradicate the formed biofilm of P. aeruginosa, respectively. DAP reduced pyocyanin production and inhibited bacterial motility of P. aeruginosa.DiscussionIn conclusion, our results support the conclusion that DAP can effectively eradicate formed biofilm and inhibit biofilm formation, bacterial motility, and pyocyanin production of P. aeruginosa and may represent a natural anti-biofilm therapeutic agent.
Collapse
|
8
|
Ming X, Yin M, Liyan W. Antibacterial and Anti-Inflammatory Potential of Chinese Medicinal Herbs: Lonicerae flos, Lonicerae japonicae flos, Scutellaria baicalensis Georgi, and Forsythia suspensa. Nat Prod Commun 2022. [DOI: 10.1177/1934578x221136673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Chinese herbal medicine (CHM) represents a potent, safe, and efficacious reservoir of treatment options against an array of microbial infections and inflammatory diseases. It has a long history of positive clinical outcomes with minimal or no side effects while enhancing and bolstering the host's protection against infections. With its unique ability to prevent, treat, and manage a wide range of diseased conditions, CHM has been successfully practiced in China for thousands of years. In the modern medical era, where harsh therapeutic drugs and antimicrobial resistance (AMR) present a significant challenge, CHM warrants further exploration. The present review highlights and focuses on 4 major CHM-based herbs, that is, ( Lonicerae flos [ LF] , Lonicerae japonicae flos [ LJF] , Scutellaria baicalensis Georgi [ SBG] , and Forsythia suspensa [ FS]) in terms of their antibacterial and anti-inflammatory efficacies. A detailed literature survey was done by the team using a systematic electronic search from PubMed, Science Direct, Google Scholar, Research Gate, books, etc. This was followed by data collecting, pertinent data extraction, in-depth analysis, and composing the final review. Each herb has been discussed in detail describing its mechanism adopted and the bioactive components involved in alleviating bacterial infections and inflammatory damage. Further, proof of efficacy by detailing the major past studies and major findings has been discussed for each of the 4 herbs. This review will give the scientific community the opportunity to update their knowledge on the subject, which is crucial for heralding the process of bringing CHM-based medicines closer to clinical development given the area of alternative medicine's rapid advancements.
Collapse
Affiliation(s)
- Xu Ming
- Pharmaceutical Department, The First Hospital of Tsinghua University, Beijing, China
| | - Ma Yin
- Pharmaceutical Department, Wang Jing Hospital of CACMS, Beijing, China
| | - Wan Liyan
- Pharmaceutical Department, The First Hospital of Tsinghua University, Beijing, China
| |
Collapse
|
9
|
Gu X, Gao R, Li Y, Liu J, Wu Y, Xu H. Combination effect of azithromycin with TCM preparation Xiyanping injection against Klebsiella pneumoniae infection in rats. Phytomedicine 2022; 104:154332. [PMID: 35853301 DOI: 10.1016/j.phymed.2022.154332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 07/03/2022] [Accepted: 07/09/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Klebsiella pneumoniae is known as one of the most principal opportunistic human pathogens. Although antibiotics such as the first-line agent azithromycin (AZM) usually are efficient for the treatment of K. pneumonia-related infections, growing threat from antibiotic resistance has become a major challenge. Various preparations based on traditional Chinese medicine (TCM) clinical experience have been developed to help combat such a global public health threat, including Xiyanping injection (XYP) that is made from the natural product andrographolide with potent heat-clearing and toxin-resolving functions. PURPOSE The present study aimed to demonstrate the therapeutic potential, as well as the action of mechanism of AZM in combination with XYP against K. pneumonia infection in rats. METHODS Pneumonia model of K. pneumoniae infection in rats was established and subjected to various treatments. The lung histopathological lesions were evaluated. ELISA and Griess techniques were used to determine the level of crucial cytokines. The protein expressions of MAPKs and NF-κB pathways were analyzed by Western blotting. RESULTS The combination in vivo could significantly inhibit the proliferation of K. pneumoniae in lung, improve the pathological changes of lung and reduce inflammatory factors in lung homogenate and bronchoalveolar lavage fluid, mainly by inactivating MAPKs and NF-κB signaling pathways. Combination therapy caused one-fold increase in apparent distribution volume of AZM in rats after multiple dosing, along with a significant increase of AZM level in lungs but obvious decrease in livers. CONCLUSION The combination therapy of AZM and XYP showed increased antibacterial and anti-inflammatory properties, indicating that it might be used to treat K. pneumoniae infection.
Collapse
Affiliation(s)
- Xuejing Gu
- School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Yantai University, Yantai 264005, China
| | - Rongrong Gao
- School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Yantai University, Yantai 264005, China
| | - Yanli Li
- School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Yantai University, Yantai 264005, China; Department of Pharmacy, Binzhou Hospital of Traditional Chinese Medicine, Binzhou 256601, China
| | - Jiali Liu
- School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Yantai University, Yantai 264005, China
| | - Yan Wu
- School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Yantai University, Yantai 264005, China
| | - Hui Xu
- School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Yantai University, Yantai 264005, China.
| |
Collapse
|
10
|
Yin R, Cheng J, Wang J, Li P, Lin J. Treatment of Pseudomonas aeruginosa infectious biofilms: Challenges and strategies. Front Microbiol 2022; 13:955286. [PMID: 36090087 PMCID: PMC9459144 DOI: 10.3389/fmicb.2022.955286] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Accepted: 08/09/2022] [Indexed: 01/10/2023] Open
Abstract
Pseudomonas aeruginosa, a Gram-negative bacterium, is one of the major pathogens implicated in human opportunistic infection and a common cause of clinically persistent infections such as cystic fibrosis, urinary tract infections, and burn infections. The main reason for the persistence of P. aeruginosa infections is due to the ability of P. aeruginosa to secrete extracellular polymeric substances such as exopolysaccharides, matrix proteins, and extracellular DNA during invasion. These substances adhere to and wrap around bacterial cells to form a biofilm. Biofilm formation leads to multiple antibiotic resistance in P. aeruginosa, posing a significant challenge to conventional single antibiotic therapeutic approaches. It has therefore become particularly important to develop anti-biofilm drugs. In recent years, a number of new alternative drugs have been developed to treat P. aeruginosa infectious biofilms, including antimicrobial peptides, quorum-sensing inhibitors, bacteriophage therapy, and antimicrobial photodynamic therapy. This article briefly introduces the process and regulation of P. aeruginosa biofilm formation and reviews several developed anti-biofilm treatment technologies to provide new directions for the treatment of P. aeruginosa biofilm infection.
Collapse
|