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Ni L, Shen R, Luo H, Li X, Zhang X, Huang L, Deng Y, Liao X, Wu Y, Duan C, Xie X. GlmS plays a key role in the virulence factor expression and biofilm formation ability of Staphylococcus aureus promoted by advanced glycation end products. Virulence 2024; 15:2352476. [PMID: 38741276 PMCID: PMC11095574 DOI: 10.1080/21505594.2024.2352476] [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: 11/21/2023] [Accepted: 05/03/2024] [Indexed: 05/16/2024] Open
Abstract
Staphylococcus aureus (S. aureus) is well known for its biofilm formation ability and is responsible for serious, chronic refractory infections worldwide. We previously demonstrated that advanced glycation end products (AGEs), a hallmark of chronic hyperglycaemia in diabetic tissues, enhanced biofilm formation by promoting eDNA release via sigB upregulation in S. aureus, contributing to the high morbidity and mortality of patients presenting a diabetic foot ulcer infection. However, the exact regulatory network has not been completely described. Here, we used pull-down assay and LC-MS/MS to identify the GlmS as a candidate regulator of sigB in S. aureus stimulated by AGEs. Dual-luciferase assays and electrophoretic mobility shift assays (EMSAs) revealed that GlmS directly upregulated the transcriptional activity of sigB. We constructed NCTC 8325 ∆glmS for further validation. qRT-PCR analysis revealed that AGEs promoted both glmS and sigB expression in the NCTC 8325 strain but had no effect on NCTC 8325 ∆glmS. NCTC 8325 ∆glmS showed a significant attenuation in biofilm formation and virulence factor expression, accompanied by a decrease in sigB expression, even under AGE stimulation. All of the changes, including pigment deficiency, decreased haemolysis ability, downregulation of hla and hld expression, and less and sparser biofilms, indicated that sigB and biofilm formation ability no longer responded to AGEs in NCTC 8325 ∆glmS. Our data extend the understanding of GlmS in the global regulatory network of S. aureus and demonstrate a new mechanism by which AGEs can upregulate GlmS, which directly regulates sigB and plays a significant role in mediating biofilm formation and virulence factor expression.
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Affiliation(s)
- Lijia Ni
- Department of Clinical Laboratory, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Institution of Antibiotic, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Rui Shen
- Department of Clinical Laboratory, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Institution of Antibiotic, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Hua Luo
- Department of Clinical Laboratory, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Institution of Antibiotic, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xuexue Li
- Department of Clinical Laboratory, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiaofan Zhang
- Department of Clinical Laboratory, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Lisi Huang
- Department of Clinical Laboratory, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Institution of Antibiotic, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yawen Deng
- Department of Clinical Laboratory, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Institution of Antibiotic, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiaoyan Liao
- Department of Clinical Laboratory, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Institution of Antibiotic, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yonglin Wu
- Department of Clinical Laboratory, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Chaohui Duan
- Department of Clinical Laboratory, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiaoying Xie
- Department of Clinical Laboratory, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Institution of Antibiotic, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
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Yang PX, Fan XX, Liu MX, Zhang XZ, Cao L, Wang ZZ, Tian JZ, Zhang YW, Xiao W. Longxuetongluo Capsule alleviate ischemia/reperfusion induced cardiomyocyte apoptosis through modulating oxidative stress and mitochondrial dysfunction. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 134:155993. [PMID: 39244943 DOI: 10.1016/j.phymed.2024.155993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 05/22/2024] [Accepted: 07/04/2024] [Indexed: 09/10/2024]
Abstract
BACKGROUND Chinese dragon's blood, the red resin of Dracaena cochinchinensis (Lour.) S. C. Chen., is widely used to treat cardiovascular and cerebrovascular diseases in China. Longxuetongluo Capsule (LTC) is a total phenolic compound extracted from Chinese dragon's blood, currently used in treating ischemic stroke. Myocardial injury can be aggravated after reperfusion of ischemic myocardium, which is called myocardial ischemia-reperfusion injury (MIRI), and the mechanism of MIRI is complex. However, the exact effect and mechanism of LTC on MIRI are still unclear. We explore the effect of LTC on alleviating MIRI based on mitochondrial dysfunction and oxidative stress. AIM OF THE STUDY To explore the cardioprotective mechanism of LTC against MIRI. MATERIALS AND METHODS A rat MIRI model was constructed through ligation of the left anterior descending coronary artery, and LTC was given continuously for 28 days before surgery. The H9c2 cardiomyocyte injury model was induced by oxygen-glucose deprivation/reperfusion (OGD/R), and LTC was given 24 h before OGD. Myocardial ischemia areas were detected with 2,3,5-triphenyltetrazolium chloride (TTC) staining. Cardiac histopathological changes were detected with hematoxylin-eosin (HE) staining. And biochemical indexes were detected with serum biochemical kit. Terminal deoxynucleotidyl transferase-mediated dUTP nick end-labelling (TUNEL) staining and flow cytometry were used to detect apoptosis. Fluorescent probes were used to observe reactive oxygen species (ROS), mitochondrial membrane potential (ΔΨm), Ca2+and other indexes. MitoTracker staining and immunofluorescence were used to observe the morphology of mitochondria and translocation of dynamin-related protein 1 (Drp1). Finally, immunohistochemistry and Western blotting were used to examine the expression of proteins related to apoptosis, mitochondrial fission and fusion and oxidative stress. RESULTS LTC could ameliorate cardiac pathological changes, decrease myocardial infarct area and the content or level of relevant serum cardiac enzymes, indicating that LTC could alleviate MIRI. Meanwhile, LTC could inhibit cardiomyocyte apoptosis via regulating apoptosis-related protein expression, and it could restore mitochondrial morphology, maintain ΔΨm, inhibit mitochondrial ROS generation and Ca2+ accumulation, increase the expression of mitochondrial fusion protein 2 (Mfn2), decrease the level of phosphorylation dynamin-related protein 1 (p-Drp1), and regulate ATP synthesis, thereby significantly ameliorating mitochondrial dysfunction. Moreover, LTC significantly reduced the expression of NADPH oxidase 2 (NOX2), NADPH oxidase 4 (NOX4) and neutrophil cytosolic factor 2 (NOXA2/p67phox), and reduced ROS production. CONCLUSION The study demonstrated that LTC could inhibit MIRI induced cardiomyocyte apoptosis by inhibiting ROS generation and mitochondrial dysfunction, and these fundings suggested that LTC can be used to alleviate MIRI, which provides a potential therapeutic approach for future treatment of MIRI.
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Affiliation(s)
- Pei-Xun Yang
- State Key Laboratory on Technologies for Chinese Medicine Pharmaceutical Process Control and Intelligent Manufacture, Jiangning Industrial City, Economic and Technological Development Zone, Lianyungang, Jiangsu 222001, China; Kanion School of Chinese Materia Medica, Nanjing University of Chinese Medicine, 138 Xianlin Avenue Qixia District, Nanjing 210046, PR China; Jiangsu Kanion Pharmaceutical Co Ltd, Jiangning Industrial City, Economic and Technological Development Zone, Lianyungang, Jiangsu 222001, China
| | - Xiao-Xue Fan
- State Key Laboratory on Technologies for Chinese Medicine Pharmaceutical Process Control and Intelligent Manufacture, Jiangning Industrial City, Economic and Technological Development Zone, Lianyungang, Jiangsu 222001, China; Jiangsu Kanion Pharmaceutical Co Ltd, Jiangning Industrial City, Economic and Technological Development Zone, Lianyungang, Jiangsu 222001, China
| | - Min-Xuan Liu
- State Key Laboratory on Technologies for Chinese Medicine Pharmaceutical Process Control and Intelligent Manufacture, Jiangning Industrial City, Economic and Technological Development Zone, Lianyungang, Jiangsu 222001, China; School of Pharmacy, Nanjing University of Chinese Medicine, 138 Xianlin Avenue Qixia District, Nanjing 210046, PR China; Jiangsu Kanion Pharmaceutical Co Ltd, Jiangning Industrial City, Economic and Technological Development Zone, Lianyungang, Jiangsu 222001, China
| | - Xin-Zhuang Zhang
- State Key Laboratory on Technologies for Chinese Medicine Pharmaceutical Process Control and Intelligent Manufacture, Jiangning Industrial City, Economic and Technological Development Zone, Lianyungang, Jiangsu 222001, China; Jiangsu Kanion Pharmaceutical Co Ltd, Jiangning Industrial City, Economic and Technological Development Zone, Lianyungang, Jiangsu 222001, China
| | - Liang Cao
- State Key Laboratory on Technologies for Chinese Medicine Pharmaceutical Process Control and Intelligent Manufacture, Jiangning Industrial City, Economic and Technological Development Zone, Lianyungang, Jiangsu 222001, China; Jiangsu Kanion Pharmaceutical Co Ltd, Jiangning Industrial City, Economic and Technological Development Zone, Lianyungang, Jiangsu 222001, China
| | - Zhen-Zhong Wang
- State Key Laboratory on Technologies for Chinese Medicine Pharmaceutical Process Control and Intelligent Manufacture, Jiangning Industrial City, Economic and Technological Development Zone, Lianyungang, Jiangsu 222001, China; Jiangsu Kanion Pharmaceutical Co Ltd, Jiangning Industrial City, Economic and Technological Development Zone, Lianyungang, Jiangsu 222001, China
| | - Jin-Zhou Tian
- Jiangsu Kanion Pharmaceutical Co Ltd, Jiangning Industrial City, Economic and Technological Development Zone, Lianyungang, Jiangsu 222001, China
| | - Yong-Wen Zhang
- State Key Laboratory on Technologies for Chinese Medicine Pharmaceutical Process Control and Intelligent Manufacture, Jiangning Industrial City, Economic and Technological Development Zone, Lianyungang, Jiangsu 222001, China; School of Pharmacy, Nanjing University of Chinese Medicine, 138 Xianlin Avenue Qixia District, Nanjing 210046, PR China.
| | - Wei Xiao
- State Key Laboratory on Technologies for Chinese Medicine Pharmaceutical Process Control and Intelligent Manufacture, Jiangning Industrial City, Economic and Technological Development Zone, Lianyungang, Jiangsu 222001, China; Jiangsu Kanion Pharmaceutical Co Ltd, Jiangning Industrial City, Economic and Technological Development Zone, Lianyungang, Jiangsu 222001, China.
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Sun X, Huang Q, Wu M, He L, Zhao X, Yang X. Metabolomics and quantitative analysis to determine differences in the geographical origins and species of Chinese dragon's blood. FRONTIERS IN PLANT SCIENCE 2024; 15:1427731. [PMID: 39359632 PMCID: PMC11445005 DOI: 10.3389/fpls.2024.1427731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2024] [Accepted: 08/29/2024] [Indexed: 10/04/2024]
Abstract
Objective The aim of this study was to comprehensively analyze the differences in Chinese dragon's blood (CDB), specifically Dracaena cochinchinensis and Dracaena cambodiana, from different geographical origins. Methods Metabolomic analysis of CDB was performed by liquid chromatography-tandem mass spectrometry (LC-MS/MS). A reliable ultrahigh-performance liquid chromatography method with a photodiode array detector (UHPLC-PDA) was developed and applied for the quantitative analysis of 12 phenolic compounds in 51 batches of samples. Results A total of 1394 metabolites were detected, of which 467 were identified as differentially accumulated metabolites. Multivariate analysis revealed that both origin and species had an effect on the composition of CDB, with greater variation between species. 19 phenolic compounds were selected as quality markers to distinguish D. cochinchinensis (Hdsp) from D. cambodiana (Hdca), and oppositin and spinoflavanone a were identified as quality markers to discriminate D. cochinchinensis samples from Hainan (Hdsp) and Guangxi Provinces (Gdc). Quantitative analysis indicated that four phenolic compounds, including loureirin D, 4H-1-benzopyran-4-one,2,3-dihydro-3,5,7-trihydroxy-3-[(4-methoxyphenyl)methyl]-,(R)-, loureirin B, and pterostilbene, showed significant differences between Gdc and Hdsp. Additionally, five phenolic compounds, namely resveratrol, loureirin D, pinostilbene, 4H-1-benzopyran-4-one,2,3-dihydro-3,5,7-trihydroxy-3-[(4-methoxyphenyl)methyl]-, (R)-, and loureirin B, exhibited significant differences between Hdsp and Hdca. Conclusion There are significant differences in the quality of CDB from different geographical origins and species, which lays the foundation for the in-depth development and utilization of different sources of CDB.
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Affiliation(s)
- Xiuting Sun
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou, China
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qing Huang
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou, China
| | - Mingsong Wu
- College of Life Science, Sichuan University, Chengdu, China
| | - Liu He
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou, China
| | - Xiangsheng Zhao
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou, China
| | - Xinquan Yang
- Hainan Provincial Key Laboratory of Resources Conservation and Development of Southern Medicine, Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou, China
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Guo S, Wang P, Sun Y, Cao C, Gao J, Hong S, Li N, Xu R. Transformation of Natural Resin Resina Draconis to 3D Functionalized Fibrous Scaffolds for Efficient Chronic Wound Healing. Adv Healthc Mater 2024:e2401105. [PMID: 38889446 DOI: 10.1002/adhm.202401105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 06/14/2024] [Indexed: 06/20/2024]
Abstract
Chronic wound healing is a major challenge in clinical practice. Secondary dressing damage and antibiotic resistance are the main obstacles for traditional wound dressings. Resina draconis (RD), a natural resin traditionally used in powder form for wound care, is now considered unsuitable due to the lack of gas permeability and moist environment required for wound healing. Here, RD is incorporated in situ by constructing a 3D coiled fibrous scaffold with polycaprolactone/polyethylene oxide. Due to the high porosity of 3D scaffold, the RD-3D dressings have a favorable swelling capacity, providing permeability and moisture for wound repair. Meanwhile, the transformation of RD powder into 3D dressings fully demonstrates capabilities of RD in rapid hemostasis, bactericidal, and inflammation-regulating activities. In vivo evaluations using pressure ulcer and infected wound models confirm the high efficacy of RD-3D dressing in early wound healing, particularly beneficial in the infected wound model compared to recombinant bovine FGF-basic. Further biological analysis shows that resveratrol, loureirin A, and loureirin B, as potentially bioactive components of RD, individually contribute to different aspects of wound healing. Collectively, RD-3D integrated dressings represent a simple, cost-effective, and safe approach to wound healing, providing an alternative therapy for translating medical dressings from bench to bedside.
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Affiliation(s)
- Shijie Guo
- Department of Biomedical Engineering and Technology, Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Pengyu Wang
- Department of Biomedical Engineering and Technology, Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, 100053, China
| | - Yu Sun
- Department of Biomedical Engineering and Technology, Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Can Cao
- Department of Biomedical Engineering and Technology, Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Junwei Gao
- Department of Biomedical Engineering and Technology, Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Shihao Hong
- Department of Biomedical Engineering and Technology, Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Ning Li
- Department of Biomedical Engineering and Technology, Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Ruodan Xu
- Department of Biomedical Engineering and Technology, Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing, 100700, China
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AlMotawa RY, Alhamid G, Badran MM, Orfali R, Alomrani AH, Tawfik EA, Alzahrani DA, Alfassam HA, Ghaffar S, Fathaddin A, Al-Taweel A, Almomen A. Co-Delivery of Dragon's Blood and Alkanna tinctoria Extracts Using Electrospun Nanofibers: In Vitro and In Vivo Wound Healing Evaluation in Diabetic Rat Model. Pharmaceutics 2024; 16:704. [PMID: 38931828 PMCID: PMC11206803 DOI: 10.3390/pharmaceutics16060704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Revised: 05/06/2024] [Accepted: 05/21/2024] [Indexed: 06/28/2024] Open
Abstract
The increasing prevalence of diabetic wounds presents a significant challenge due to the difficulty of natural healing and various obstacles. Dragon's blood (DB) and Alkanna tinctoria (AT) are well recognized for their potent healing abilities, which include potent antibacterial and anti-inflammatory activities. In this study, electrospun nanofibers (NFs) based on polyvinyl pyrrolidone (PVP) were co-loaded with both DB and AT, aiming to magnify their efficacy as wound-dressing applications for diabetic wound healing. The evaluation of these NFs as wound dressings was conducted using a streptozotocin-induced diabetic rat model. Electrospun NFs were prepared using the electrospinning of the PVP polymer, resulting in nanofibers with consistent, smooth surfaces. The loading capacity (LC) of AT and DB into NFs was 64.1 and 70.4 µg/mg, respectively, while in the co-loaded NFs, LC was 49.6 for AT and 57.2 µg/mg for DB. In addition, X-ray diffraction (XRD) revealed that DB and AT were amorphously dispersed within the NFs. The loaded NFs showed a dissolution time of 30 s in PBS (pH 7.4), which facilitated the release of AT and DB (25-38% after 10 min), followed by a complete release achieved after 180 min. The antibacterial evaluation demonstrated that the DB-AT mixture had potent activity against Pseudomonas aeruginosa (P. aeruginosa) and Staphylococcus aureus (S. aureus). Along with that, the DB-AT NFs showed effective growth inhibition for both P. aeruginosa and S. aureus compared to the control NFs. Moreover, wound healing was evaluated in vivo in diabetic Wistar rats over 14 days. The results revealed that the DB-AT NFs improved wound healing within 14 days significantly compared to the other groups. These results highlight the potential application of the developed DB-AT NFs in wound healing management, particularly in diabetic wounds.
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Affiliation(s)
- Rana Y. AlMotawa
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (R.Y.A.); (G.A.); (A.A.-T.)
| | - Ghadeer Alhamid
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (R.Y.A.); (G.A.); (A.A.-T.)
| | - Mohamed M. Badran
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11495, Saudi Arabia
- Nanobiotechnology Unit, College of Pharmacy, King Saud University, Riyadh 11495, Saudi Arabia
| | - Raha Orfali
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (R.Y.A.); (G.A.); (A.A.-T.)
| | - Abdullah H. Alomrani
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11495, Saudi Arabia
- Nanobiotechnology Unit, College of Pharmacy, King Saud University, Riyadh 11495, Saudi Arabia
| | - Essam A. Tawfik
- Advanced Diagnostics and Therapeutics Institute, Health Sector, King Abdulaziz City for Science and Technology (KACST), Riyadh 11442, Saudi Arabia
| | - Dunia A. Alzahrani
- Advanced Diagnostics and Therapeutics Institute, Health Sector, King Abdulaziz City for Science and Technology (KACST), Riyadh 11442, Saudi Arabia
| | - Haya A. Alfassam
- Advanced Diagnostics and Therapeutics Institute, Health Sector, King Abdulaziz City for Science and Technology (KACST), Riyadh 11442, Saudi Arabia
| | - Safina Ghaffar
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (R.Y.A.); (G.A.); (A.A.-T.)
| | - Amany Fathaddin
- Pathology Department, College of Medicine, King Saud University, Riyadh 11495, Saudi Arabia
| | - Areej Al-Taweel
- Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia; (R.Y.A.); (G.A.); (A.A.-T.)
| | - Aliyah Almomen
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11495, Saudi Arabia;
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Yin C, Li Y, Yu J, Deng Z, Liu S, Shi X, Tang D, Chen X, Zhang L. Dragon's Blood-Loaded Mesoporous Silica Nanoparticles for Rapid Hemostasis and Antibacterial Activity. Molecules 2024; 29:1888. [PMID: 38675708 PMCID: PMC11054711 DOI: 10.3390/molecules29081888] [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: 03/13/2024] [Revised: 04/18/2024] [Accepted: 04/19/2024] [Indexed: 04/28/2024] Open
Abstract
Dragon's blood (DB) is a traditional Chinese medicine (TCM) with hemostatic effects and antibacterial properties. However, it is still challenging to use for rapid hemostasis because of its insolubility. In this study, different amounts of DB were loaded on mesoporous silica nanoparticles (MSNs) to prepare a series of DB-MSN composites (5DB-MSN, 10DB-MSN, and 20DB-MSN). DB-MSN could quickly release DB and activate the intrinsic blood coagulation cascade simultaneously by DB and MSN. Hemostasis tests demonstrated that DB-MSN showed superior hemostatic effects than either DB or MSNs alone, and 10DB-MSN exhibited the best hemostatic effect. In addition, the antibacterial activities of DB-MSN against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) improved with the increase in DB. Furthermore, the hemolysis assay and cytocompatibility assay demonstrated that all DB-MSNs exhibited excellent biocompatibility. Based on these results, 10DB-MSN is expected to have potential applications for emergency hemostatic and antibacterial treatment in pre-hospital trauma.
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Affiliation(s)
- Cuiyun Yin
- Yunnan Branch, Institute of Medicinal Plant, Chinese Academy of Medical Sciences, Jinghong 666100, China; (C.Y.); (J.Y.); (Z.D.); (S.L.); (X.S.); (D.T.); (X.C.)
- Key Laboratory of Sustainable Utilization of Southern Medicine, Jinghong 666100, China
| | - Yihang Li
- Yunnan Branch, Institute of Medicinal Plant, Chinese Academy of Medical Sciences, Jinghong 666100, China; (C.Y.); (J.Y.); (Z.D.); (S.L.); (X.S.); (D.T.); (X.C.)
- Key Laboratory of Sustainable Utilization of Southern Medicine, Jinghong 666100, China
| | - Jing Yu
- Yunnan Branch, Institute of Medicinal Plant, Chinese Academy of Medical Sciences, Jinghong 666100, China; (C.Y.); (J.Y.); (Z.D.); (S.L.); (X.S.); (D.T.); (X.C.)
- Key Laboratory of Sustainable Utilization of Southern Medicine, Jinghong 666100, China
| | - Zhaoyou Deng
- Yunnan Branch, Institute of Medicinal Plant, Chinese Academy of Medical Sciences, Jinghong 666100, China; (C.Y.); (J.Y.); (Z.D.); (S.L.); (X.S.); (D.T.); (X.C.)
- Key Laboratory of Sustainable Utilization of Southern Medicine, Jinghong 666100, China
| | - Shifang Liu
- Yunnan Branch, Institute of Medicinal Plant, Chinese Academy of Medical Sciences, Jinghong 666100, China; (C.Y.); (J.Y.); (Z.D.); (S.L.); (X.S.); (D.T.); (X.C.)
- Key Laboratory of Sustainable Utilization of Southern Medicine, Jinghong 666100, China
| | - Xuanchao Shi
- Yunnan Branch, Institute of Medicinal Plant, Chinese Academy of Medical Sciences, Jinghong 666100, China; (C.Y.); (J.Y.); (Z.D.); (S.L.); (X.S.); (D.T.); (X.C.)
- Key Laboratory of Sustainable Utilization of Southern Medicine, Jinghong 666100, China
| | - Deying Tang
- Yunnan Branch, Institute of Medicinal Plant, Chinese Academy of Medical Sciences, Jinghong 666100, China; (C.Y.); (J.Y.); (Z.D.); (S.L.); (X.S.); (D.T.); (X.C.)
- Key Laboratory of Sustainable Utilization of Southern Medicine, Jinghong 666100, China
| | - Xi Chen
- Yunnan Branch, Institute of Medicinal Plant, Chinese Academy of Medical Sciences, Jinghong 666100, China; (C.Y.); (J.Y.); (Z.D.); (S.L.); (X.S.); (D.T.); (X.C.)
- Key Laboratory of Sustainable Utilization of Southern Medicine, Jinghong 666100, China
| | - Lixia Zhang
- Yunnan Branch, Institute of Medicinal Plant, Chinese Academy of Medical Sciences, Jinghong 666100, China; (C.Y.); (J.Y.); (Z.D.); (S.L.); (X.S.); (D.T.); (X.C.)
- Key Laboratory of Sustainable Utilization of Southern Medicine, Jinghong 666100, China
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7
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Landa G, Miranda-Calderon LG, Gomez A, Perez M, Sebastian V, Arruebo M, Lamarche I, Tewes F, Irusta S, Mendoza G. Real-time in vivo monitoring of the antimicrobial action of combination therapies in the management of infected topical wounds. Int J Pharm 2023; 646:123502. [PMID: 37827392 DOI: 10.1016/j.ijpharm.2023.123502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 09/27/2023] [Accepted: 10/09/2023] [Indexed: 10/14/2023]
Abstract
The increasing prevalence of non-healing infected wounds has become a serious concern in the clinical practice, being associated to population aging and to the rising prevalence of several chronic conditions such as diabetes. Herein, the evaluation of the bactericidal and antibiofilm effects of the natural antiseptic terpenes thymol and farnesol standing alone or in combination with the standard care antiseptic chlorhexidine was carried out both in vitro and in vivo. The in vitro combinatorial treatment of chlorhexidine associated with those terpenes against Staphylococcus aureus in its planktonic and sessile forms demonstrated a superior antibacterial activity than that of chlorhexidine alone. Real-time in vivo monitoring of infection progression and antimicrobial treatment outcomes were evaluated using the bioluminescent S. aureus strain Xen36. In vivo studies on infected wound splinting murine models corroborated the superior bactericidal effects of the combinatorial treatments here proposed. Moreover, the encapsulation of thymol in electrospun Eudragit® S100 (i.e., a synthetic anionic copolymer of methacrylic acid and ethyl acrylate)-based wound dressings was also carried out in order to design efficient antimicrobial wound dressings.
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Affiliation(s)
- Guillermo Landa
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain; Department of Chemical and Environmental Engineering. University of Zaragoza, Campus Río Ebro-Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain; Aragon Health Research Institute (IIS Aragon), 50009 Zaragoza, Spain
| | - Laura G Miranda-Calderon
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain; Department of Chemical and Environmental Engineering. University of Zaragoza, Campus Río Ebro-Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain
| | - Alex Gomez
- Department of Animal Pathology, University of Zaragoza, 177 Miguel Servet Street, 50013 Zaragoza, Spain; Instituto Universitario de Investigación Mixto Agroalimentario de Aragón (IA2), University of Zaragoza, 50013 Zaragoza, Spain
| | - Marta Perez
- Instituto Universitario de Investigación Mixto Agroalimentario de Aragón (IA2), University of Zaragoza, 50013 Zaragoza, Spain; Department of Anatomy, Embriology and Animal Genetics, University of Zaragoza, 177 Miguel Servet Street, 50013 Zaragoza, Spain
| | - Victor Sebastian
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain; Department of Chemical and Environmental Engineering. University of Zaragoza, Campus Río Ebro-Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain; Aragon Health Research Institute (IIS Aragon), 50009 Zaragoza, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029 Madrid, Spain
| | - Manuel Arruebo
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain; Department of Chemical and Environmental Engineering. University of Zaragoza, Campus Río Ebro-Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain; Aragon Health Research Institute (IIS Aragon), 50009 Zaragoza, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029 Madrid, Spain.
| | - Isabelle Lamarche
- INSERM U1070 "Pharmacology of anti-infective agents", 1 rue Georges Bonnet, Pôle Biologie Santé, 86022 Poitiers, France
| | - Frederic Tewes
- INSERM U1070 "Pharmacology of anti-infective agents", 1 rue Georges Bonnet, Pôle Biologie Santé, 86022 Poitiers, France.
| | - Silvia Irusta
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain; Department of Chemical and Environmental Engineering. University of Zaragoza, Campus Río Ebro-Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain; Aragon Health Research Institute (IIS Aragon), 50009 Zaragoza, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029 Madrid, Spain
| | - Gracia Mendoza
- Aragon Health Research Institute (IIS Aragon), 50009 Zaragoza, Spain; Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029 Madrid, Spain
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8
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Jiang F, Chen Y, Yu J, Zhang F, Liu Q, He L, Musha H, Du J, Wang B, Han P, Chen X, Tang J, Li M, Shen H. Repurposed Fenoprofen Targeting SaeR Attenuates Staphylococcus aureus Virulence in Implant-Associated Infections. ACS CENTRAL SCIENCE 2023; 9:1354-1373. [PMID: 37521790 PMCID: PMC10375895 DOI: 10.1021/acscentsci.3c00499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Indexed: 08/01/2023]
Abstract
Implant-associated infections (IAIs) caused by S. aureus can result in serious challenges after orthopedic surgery. Due to biofilm formation and antibiotic resistance, this refractory infection is highly prevalent, and finding drugs to attenuate bacterial virulence is becoming a rational alternative strategy. In S. aureus, the SaeRS two-component system (TCS) plays a key role in the production of over 20 virulence factors and the pathogenesis of the bacterium. Here, by conducting a structure-based virtual screening against SaeR, we identified that fenoprofen, a USA Food and Drug Administration (FDA)-approved nonsteroid anti-inflammatory drug (NSAID), had excellent inhibitory potency against the response regulator SaeR protein. We showed that fenoprofen attenuated the virulence of S. aureus without drug resistance. In addition, it was helpful in relieving osteolysis and restoring the walking ability of mice in vitro and in implant-associated infection models. More importantly, fenoprofen treatment suppressed biofilm formation and changed the biofilm structure, which caused S. aureus to form loose and porous biofilms that were more vulnerable to infiltration and elimination by leukocytes. Our results reveal that fenoprofen is a potent antivirulence agent with potential value in clinical applications and that SaeR is a drug target against S. aureus implant-associated infections.
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Affiliation(s)
- Feng Jiang
- Department
of Orthopedics, Shanghai Sixth People’s
Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200235, China
| | - Yingjia Chen
- Drug
Discovery and Design Center, State Key Laboratory of Drug Research,
Shanghai Institute of Materia Medica, Chinese
Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
- Department
of Pharmacy, University of Chinese Academy
of Sciences, No.19A Yuan
Road, Beijing 100049, China
| | - Jinlong Yu
- Department
of Orthopedics, Shanghai Sixth People’s
Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200235, China
| | - Feiyang Zhang
- Department
of Orthopedics, Shanghai Sixth People’s
Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200235, China
| | - Qian Liu
- Department
of Laboratory Medicine, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
| | - Lei He
- Department
of Laboratory Medicine, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
| | - Hamushan Musha
- Department
of Orthopedics, Shanghai Sixth People’s
Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200235, China
| | - Jiafei Du
- Department
of Orthopedics, Shanghai Sixth People’s
Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200235, China
| | - Boyong Wang
- Department
of Orthopedics, Shanghai Sixth People’s
Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200235, China
| | - Pei Han
- Department
of Orthopedics, Shanghai Sixth People’s
Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200235, China
| | - Xiaohua Chen
- Department
of Infectious Diseases, Shanghai Sixth People’s
Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200235, China
| | - Jin Tang
- Department
of Clinical Laboratory, Shanghai Sixth People’s
Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200235, China
| | - Min Li
- Department
of Laboratory Medicine, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200127, China
- Faculty of
Medical Laboratory Science, Shanghai Jiaotong
University School of Medicine, Shanghai 200025, China
| | - Hao Shen
- Department
of Orthopedics, Shanghai Sixth People’s
Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200235, China
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9
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Pharmacodynamics of Dracorhodin Perchlorate and Its Inflammation-Targeting Emulsion Gel for Wound Healing. Gels 2022; 8:gels8110712. [DOI: 10.3390/gels8110712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 10/31/2022] [Accepted: 11/01/2022] [Indexed: 11/06/2022] Open
Abstract
The mechanism of dracorhodin perchlorate for the repair of rat skin wounds was investigated. In order to screen a more favorable drug delivery system for wound repair, the therapeutic effect of dracorhodin perchlorate inflammation-targeted emulsion gel was compared with that of non-targeted emulsion gel on rat wounds. Compared with non-targeted emulsion gels, inflammation-targeted emulsion gels had a better transdermal penetration and lower potentials (−51.6 mV and −17.1 mV, respectively). The recovery of the wound from the dracorhodin perchlorate inflammation targeted emulsion gel group was better than that of the dracorhodin perchlorate inflammation non-targeted emulsion gel group and the positive drug group. Compared with the no-target emulsion gel group, the bFGF expression on day 7 and the EGF expression on day 14 in the targeted emulsion group showed 45.5% and 49.9% improvement, respectively. Pathological tissue slices showed that the epidermis, dermis, and basal layer inflammatory cells in the inflammation-targeted emulsion gel group and non-targeted emulsion gel group were significantly reduced, the granulation tissue proliferation was obvious, and the inflammation-targeted emulsion gel group was more effective. The results proved that dracorhodin perchlorate had a repairing effect on rat skin wounds, and its mechanism might be related to the promotion of the expression of EGF and bFGF in tissues.
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10
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Ganesh P, Veena K, Senthil R, Iswamy K, Ponmalar EM, Mariappan V, Girija ASS, Vadivelu J, Nagarajan S, Challabathula D, Shankar EM. Biofilm-Associated Agr and Sar Quorum Sensing Systems of Staphylococcus aureus Are Inhibited by 3-Hydroxybenzoic Acid Derived from Illicium verum. ACS OMEGA 2022; 7:14653-14665. [PMID: 35557687 PMCID: PMC9088959 DOI: 10.1021/acsomega.1c07178] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 03/31/2022] [Indexed: 05/10/2023]
Abstract
Biofilm-producing Staphylococcus aureus (S. aureus) is less sensitive to conventional antibiotics than free-living planktonic cells. Here, we evaluated the antibiofilm activity of Illicium verum (I. verum) and one of its constituent compounds 3-hydroxybenzoic acid (3-HBA) against multi-drug-resistant S. aureus. We performed gas chromatography-mass spectroscopy (GC-MS) to identify the major constituents in the methanolic extract of I. verum. Ligand-receptor interactions were studied by molecular docking, and in vitro investigations were performed using crystal violet assay, spreading assay, hemolysis, proteolytic activity, and growth curve analysis. The methanolic extract of I. verum inhibited S. aureus at 4.8 mg/mL, and GC-MS analysis revealed anethole, m-methoxybenzaldehyde, and 3-HBA as the major constituents. Molecular docking attributed the antibiofilm activity to an active ligand present in 3-HBA, which strongly interacted with the active site residues of AgrA and SarA of S. aureus. At a subinhibitory concentration of 2.4 mg/mL, the extract showed biofilm inhibition. Similarly, 3-HBA inhibited biofilm activity at 25 μg/mL (90.34%), 12.5 μg/mL (77.21%), and 6.25 μg/mL (62.69%) concentrations. Marked attrition in bacterial spreading was observed at 2.4 mg/mL (crude extract) and 25 μg/mL (3-HBA) concentrations. The methanol extract of I. verum and 3-HBA markedly inhibited β-hemolytic and proteolytic activities of S. aureus. At the lowest concentration, the I. verum extract (2.4 mg/mL) and 3-HBA (25 μg/mL) did not inhibit bacterial growth. Optical microscopy and SEM analysis confirmed that I. verum and 3-HBA significantly reduced biofilm dispersion without disturbing bacterial growth. Together, we found that the antibiofilm activity of I. verum and 3-HBA strongly targeted the Agr and Sar systems of S. aureus.
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Affiliation(s)
- Pitchaipillai
Sankar Ganesh
- Department
of Microbiology, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences, Velappanchavadi, PH Road, Chennai 600077, Tamilnadu, India
| | - Krishnamurthy Veena
- Infection
Biology, Department of Life Sciences, Central
University of Tamil Nadu, Neelakudi, Tiruvarur 610005, Tamilnadu, India
| | - Renganathan Senthil
- Department
of Bioinformatics, Marudupandiyar College, Vallam, Thanjavur 613403, Tamilnadu, India
| | - Koneti Iswamy
- Infection
Biology, Department of Life Sciences, Central
University of Tamil Nadu, Neelakudi, Tiruvarur 610005, Tamilnadu, India
| | - Esaki Muthu Ponmalar
- Sri
Sairam Siddha Medical College and Research Centre, West Tambaram, Chennai 600044, Tamilnadu, India
| | - Vanitha Mariappan
- Center
for Toxicology and Health Risk Studies, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
| | - A. S. Smiline Girija
- Department
of Microbiology, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences, Velappanchavadi, PH Road, Chennai 600077, Tamilnadu, India
| | - Jamuna Vadivelu
- Department
of Medical Microbiology, Faculty of Medicine, University of Malaya, Lembah Pantai, Kuala Lumpur 50603, Malaysia
| | - Samuthira Nagarajan
- Department
of Chemistry, Central University of Tamil
Nadu, Neelakudi, Tiruvarur 610005, Tamil Nadu, India
| | - Dinakar Challabathula
- Department
of Life Sciences, Central University of
Tamil Nadu, Neelakudi, Tiruvarur 610005, Tamil Nadu, India
| | - Esaki Muthu Shankar
- Infection
Biology, Department of Life Sciences, Central
University of Tamil Nadu, Neelakudi, Tiruvarur 610005, Tamilnadu, India
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11
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Antimicrobial Peptide L18R Displays a Modulating Action against Inter-Kingdom Biofilms in the Lubbock Chronic Wound Biofilm Model. Microorganisms 2021; 9:microorganisms9081779. [PMID: 34442858 PMCID: PMC8399358 DOI: 10.3390/microorganisms9081779] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 08/16/2021] [Accepted: 08/18/2021] [Indexed: 01/22/2023] Open
Abstract
Chronic wound infections represent an important health problem due to the reduced response to antimicrobial treatment of the pathogens organized in structured biofilms. This study investigated the effects of the previously described antifungal peptide L18R against three representative wound pathogens: Staphylococcus aureus, Pseudomonas aeruginosa, and Candida albicans. The antimicrobial activity of L18R was evaluated (i) against single planktonic microbial populations; (ii) on single, dual, and triadic species of biofilms in both the early stage and mature stage; and (iii) in the polymicrobial Lubbock chronic wound biofilm (LCWB) model, mimicking spatial microbial colonization. This study used the evaluation of CFUs, biofilm biomass detection, and confocal and scanning electron microscopy analysis. L18R showed a significant antimicrobial activity against planktonic microorganisms and was able to differentially reduce the biomass of monomicrobial biofilms. No reduction of biomass was observed against the polymicrobial biofilm. In mature LCWB, L18R caused a moderate reduction in total CFU number, with a variable effect on the different microorganisms. Microscopy images confirmed a predominant presence of P.aeruginosa and a lower percentage of C. albicans cells. These findings suggest a modulating action of L18R and recommend further studies on its potential role in chronic wound management in association with conventional antibiotics or alternative treatments.
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