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Wei Y, Lv J, Zhu S, Wang S, Su J, Xu C. Enzyme-responsive liposomes for controlled drug release. Drug Discov Today 2024; 29:104014. [PMID: 38705509 DOI: 10.1016/j.drudis.2024.104014] [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: 12/16/2023] [Revised: 04/19/2024] [Accepted: 04/29/2024] [Indexed: 05/07/2024]
Abstract
Compared to other nanovectors, liposomes exhibit unique advantages, such as good biosafety and high drug-loading capacity. However, slow drug release from conventional liposomes makes most payloads unavailable, restricting the therapeutic efficacy. Therefore, in the last ∼20 years, enzyme-responsive liposomes have been extensively investigated, which liberate drugs under the stimulation of enzymes overexpressed at disease sites. In this review, we elaborate on the research progress on enzyme-responsive liposomes. The involved enzymes mainly include phospholipases, particularly phospholipase A2, matrix metalloproteinases, cathepsins, and esterases. These enzymes can cleave ester bonds or specific peptide sequences incorporated in the liposomes for controlled drug release by disrupting the primary structure of liposomes, detaching protective polyethylene glycol shells, or activating liposome-associated prodrugs. Despite decades of efforts, there are still a lack marketed products of enzyme-responsive liposomes. Therefore, more efforts should be made to improve the safety and effectiveness of enzyme-responsive liposomes and address the issues associated with production scale-up.
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Affiliation(s)
- Yan Wei
- Institute of Translational Medicine, Shanghai University, Shanghai 200444, China; Organoid Research Center, Shanghai University, Shanghai 200444, China; Department of Orthopedics, Shanghai Zhongye Hospital, Shanghai 200941, China.
| | - Jiajing Lv
- Institute of Translational Medicine, Shanghai University, Shanghai 200444, China; Organoid Research Center, Shanghai University, Shanghai 200444, China
| | - Shiyu Zhu
- Institute of Translational Medicine, Shanghai University, Shanghai 200444, China; Organoid Research Center, Shanghai University, Shanghai 200444, China
| | - Sicheng Wang
- Department of Orthopedics, Shanghai Zhongye Hospital, Shanghai 200941, China.
| | - Jiacan Su
- Institute of Translational Medicine, Shanghai University, Shanghai 200444, China; Organoid Research Center, Shanghai University, Shanghai 200444, China; Department of Orthopedics, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China.
| | - Can Xu
- Department of Gastroenterology, Changhai Hospital, Shanghai 200433, China.
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Bhattacharjee A, Sahoo OS, Sarkar A, Bhattacharya S, Chowdhury R, Kar S, Mukherjee O. Infiltration to infection: key virulence players of Helicobacter pylori pathogenicity. Infection 2024; 52:345-384. [PMID: 38270780 DOI: 10.1007/s15010-023-02159-9] [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: 09/08/2023] [Accepted: 12/13/2023] [Indexed: 01/26/2024]
Abstract
PURPOSE This study aims to comprehensively review the multifaceted factors underlying the successful colonization and infection process of Helicobacter pylori (H. pylori), a prominent Gram-negative pathogen in humans. The focus is on elucidating the functions, mechanisms, genetic regulation, and potential cross-interactions of these elements. METHODS Employing a literature review approach, this study examines the intricate interactions between H. pylori and its host. It delves into virulence factors like VacA, CagA, DupA, Urease, along with phase variable genes, such as babA, babC, hopZ, etc., giving insights about the bacterial perspective of the infection The association of these factors with the infection has also been added in the form of statistical data via Funnel and Forest plots, citing the potential of the virulence and also adding an aspect of geographical biasness to the virulence factors. The biochemical characteristics and clinical relevance of these factors and their effects on host cells are individually examined, both comprehensively and statistically. RESULTS H. pylori is a Gram-negative, spiral bacterium that successfully colonises the stomach of more than half of the world's population, causing peptic ulcers, gastric cancer, MALT lymphoma, and other gastro-duodenal disorders. The clinical outcomes of H. pylori infection are influenced by a complex interplay between virulence factors and phase variable genes produced by the infecting strain and the host genetic background. A meta-analysis of the prevalence of all the major virulence factors has also been appended. CONCLUSION This study illuminates the diverse elements contributing to H. pylori's colonization and infection. The interplay between virulence factors, phase variable genes, and host genetics determines the outcome of the infection. Despite biochemical insights into many factors, their comprehensive regulation remains an understudied area. By offering a panoramic view of these factors and their functions, this study enhances understanding of the bacterium's perspective, i.e. H. pylori's journey from infiltration to successful establishment within the host's stomach.
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Affiliation(s)
- Arghyadeep Bhattacharjee
- Department of Biotechnology, National Institute of Technology Durgapur, Durgapur, West Bengal, 713209, India
- Department of Microbiology, Kingston College of Science, Beruanpukuria, Barasat, West Bengal, 700219, India
| | - Om Saswat Sahoo
- Department of Biotechnology, National Institute of Technology Durgapur, Durgapur, West Bengal, 713209, India
| | - Ahana Sarkar
- Department of Biotechnology, National Institute of Technology Durgapur, Durgapur, West Bengal, 713209, India
| | - Saurabh Bhattacharya
- Department of Microbiology and Molecular Genetics, Institute for Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, The Hebrew University of Jerusalem, P.O.B. 12272, 9112001, Jerusalem, Israel
| | - Rukhsana Chowdhury
- School of Biological Sciences, RKM Vivekananda Educational and Research Institute Narendrapur, Kolkata, India
| | - Samarjit Kar
- Department of Mathematics, National Institute of Technology Durgapur, Durgapur, West Bengal, 713209, India
| | - Oindrilla Mukherjee
- Department of Biotechnology, National Institute of Technology Durgapur, Durgapur, West Bengal, 713209, India.
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Zhang M, Liu F, Shi F, Chen H, Hu Y, Sun H, Qi H, Xiong W, Deng C, Sun N. High-throughput detection allied with machine learning for precise monitoring of significant serum metabolic changes in Helicobacter pylori infection. Talanta 2024; 269:125483. [PMID: 38042145 DOI: 10.1016/j.talanta.2023.125483] [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: 10/03/2023] [Revised: 11/20/2023] [Accepted: 11/23/2023] [Indexed: 12/04/2023]
Abstract
High-throughput detection of large-scale samples is the foundation for rapidly accessing massive metabolic data in precision medicine. Machine learning is a powerful tool for uncovering valuable information hidden within massive data. In this work, we achieved the extraction of a single fingerprinting of 1 μL serum within 5 s through a high-throughput detection platform based on functionalized nanoparticles. We quickly obtained over a thousand serum metabolic fingerprintings (SMFs) including those of individuals with Helicobacter pylori (HP) infection. Combining four classical machine learning models and enrichment analysis, we attempted to extract and confirm useful information behind these SMFs. Based on all fingerprint signals, all four models achieved area under the curve (AUC) values of 0.983-1. In particular, orthogonal partial least squares discriminant analysis (OPLS-DA) model obtained value of 1 in both the discovery and validation sets. Fortunately, we identified six significant metabolic features, all of which can greatly contribute to the monitoring of HP infection, with AUC values ranging from 0.906 to 0.985. The combination of these six significant metabolic features can enable the precise monitoring of HP infection in serum, with over 95 % of accuracy, specificity and sensitivity. The OPLS-DA model displayed optimal performance and the corresponding scatter plot visualized the clear distinction between HP and HC. Interestingly, they exhibit a consistent reduction trend compared to healthy controls, prompting us to explore the possible metabolic pathways and potential mechanism. This work demonstrates the potential alliance between high-throughput detection and machine learning, advancing their application in precision medicine.
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Affiliation(s)
- Man Zhang
- Department of Chemistry, Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai, 200433, China
| | - Fenghua Liu
- Department of Gastroenterology, Shibei Hospital of Jing'an District of Shanghai, 4500 Gong He Xin Road, Shanghai, 200435, China
| | - Fangying Shi
- Department of Chemistry, Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai, 200433, China
| | - Haolin Chen
- Department of Chemistry, Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai, 200433, China
| | - Yi Hu
- Department of Emergency Shibei Hospital of Jing'an District of Shanghai, 4500 Gong He Xin Road, Shanghai, 200435, China
| | - Hong Sun
- Medical Examination Section, Shibei Hospital of Jing'an District of Shanghai, 4500 Gong He Xin Road, Shanghai, 200435, China
| | - Hongxia Qi
- Department of Gastroenterology, Shibei Hospital of Jing'an District of Shanghai, 4500 Gong He Xin Road, Shanghai, 200435, China
| | - Wenjian Xiong
- Department of Gastroenterology, Shibei Hospital of Jing'an District of Shanghai, 4500 Gong He Xin Road, Shanghai, 200435, China.
| | - Chunhui Deng
- Department of Chemistry, Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai, 200433, China; School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, 330031, China.
| | - Nianrong Sun
- Department of Chemistry, Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai, 200433, China.
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Al-Fakhrany OM, Elekhnawy E. Helicobacter pylori in the post-antibiotics era: from virulence factors to new drug targets and therapeutic agents. Arch Microbiol 2023; 205:301. [PMID: 37550555 PMCID: PMC10406680 DOI: 10.1007/s00203-023-03639-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/16/2023] [Accepted: 07/20/2023] [Indexed: 08/09/2023]
Abstract
Helicobacter pylori is considered one of the most prevalent human pathogenic microbes globally. It is the main cause of a number of gastrointestinal ailments, including peptic and duodenal ulcers, and gastric tumors with high mortality rates. Thus, eradication of H. pylori is necessary to prevent gastric cancer. Still, the rise in antibiotic resistance is the most important challenge for eradication strategies. Better consideration of H. pylori virulence factors, pathogenesis, and resistance is required for better eradication rates and, thus, prevention of gastrointestinal malignancy. This article is aimed to show the role of virulence factors of H. pylori. Some are involved in its survival in the harsh environment of the human gastric lumen, and others are related to pathogenesis and the infection process. Furthermore, this work has highlighted the recent advancement in H. pylori treatment, as well as antibiotic resistance as a main challenge in H. pylori eradication. Also, we tried to provide an updated summary of the evolving H. pylori control strategies and the potential alternative drugs to fight this lethal resistant pathogen. Recent studies have focused on evaluating the efficacy of alternative regimens (such as sequential, hybrid, concomitant treatment, vonoprazan (VPZ)-based triple therapy, high-dose PPI-amoxicillin dual therapy, probiotics augmented triple therapy, or in combination with BQT) in the effective eradication of H. pylori. Thus, innovating new anti-H. pylori drugs and establishing H. pylori databanks are upcoming necessities in the near future.
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Affiliation(s)
- Omnia Momtaz Al-Fakhrany
- Pharmaceutical Microbiology Department, Faculty of Pharmacy, Tanta University, Tanta, 31527 Egypt
| | - Engy Elekhnawy
- Pharmaceutical Microbiology Department, Faculty of Pharmacy, Tanta University, Tanta, 31527 Egypt
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Zhou Q, Si Z, Wang K, Li K, Hong W, Zhang Y, Li P. Enzyme-triggered smart antimicrobial drug release systems against bacterial infections. J Control Release 2022; 352:507-526. [PMID: 36341932 DOI: 10.1016/j.jconrel.2022.10.038] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 10/17/2022] [Accepted: 10/22/2022] [Indexed: 11/06/2022]
Abstract
The rapid emergence and spread of drug-resistant bacteria, as one of the most pressing public health threats, are declining our arsenal of available antimicrobial drugs. Advanced antimicrobial drug delivery systems that can achieve precise and controlled release of antimicrobial agents in the microenvironment of bacterial infections will retard the development of antimicrobial resistance. A variety of extracellular enzymes are secreted by bacteria to destroy physical integrity of tissue during their invasion of host body, which can be utilized as stimuli to trigger "on-demand" release of antimicrobials. In the past decade, such bacterial enzyme responsive drug release systems have been intensively studied but few review has been released. Herein, we systematically summarize the recent progress of smart antimicrobial drug delivery systems triggered by bacteria secreted enzymes such as lipase, hyaluronidase, protease and antibiotic degrading enzymes. The perspectives and existing key issues of this field will also be discussed to fuel the innovative research and translational application in the future.
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Affiliation(s)
- Qian Zhou
- Frontiers Science Center for Flexible Electronics, (FSCFE), Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China
| | - Zhangyong Si
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore
| | - Kun Wang
- Frontiers Science Center for Flexible Electronics, (FSCFE), Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China
| | - Kunpeng Li
- Frontiers Science Center for Flexible Electronics, (FSCFE), Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China
| | - Weilin Hong
- Frontiers Science Center for Flexible Electronics, (FSCFE), Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China
| | - Yuezhou Zhang
- Frontiers Science Center for Flexible Electronics, (FSCFE), Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China.
| | - Peng Li
- Frontiers Science Center for Flexible Electronics, (FSCFE), Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials & Engineering (IBME), Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China.
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Helicobacter pylori: an up-to-date overview on the virulence and pathogenesis mechanisms. Braz J Microbiol 2022; 53:33-50. [PMID: 34988937 PMCID: PMC8731681 DOI: 10.1007/s42770-021-00675-0] [Citation(s) in RCA: 57] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 12/24/2021] [Indexed: 02/06/2023] Open
Abstract
Helicobacter pylori is an organism associated with ulcer disease and gastric cancer. The latter is one of the most prevalent malignancies and currently the fourth major cause of cancer-related deaths globally. The pathogen infects about 50% of the world population, and currently, no treatment ensures its total elimination. There has been an increase in our understanding of the pathophysiology and pathogenesis mechanisms of H. pylori over the years. H. pylori can induce several genetic alterations, express numerous virulence factors, and trigger diverse adaptive mechanisms during its adherence and colonization. For successful colonization and infection establishment, several effector proteins/toxins are released by the organism. Evidence is also available reporting spiral to coccoid transition as a unique tactic H. pylori uses to survive in the host’s gastrointestinal tract (GIT). Thus, the virulence and pathogenicity of H. pylori are under the control of complex interplay between the virulence factors, host, and environmental factors. Expounding the role of the various virulence factors in H. pylori pathogenesis and clinical outcomes is crucial for vaccine development and in providing and developing a more effective therapeutic intervention. Here we critically reflect on H. pylori infection and delineate what is currently known about the virulence and pathogenesis mechanisms of H. pylori.
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Baj J, Forma A, Sitarz M, Portincasa P, Garruti G, Krasowska D, Maciejewski R. Helicobacter pylori Virulence Factors-Mechanisms of Bacterial Pathogenicity in the Gastric Microenvironment. Cells 2020; 10:E27. [PMID: 33375694 PMCID: PMC7824444 DOI: 10.3390/cells10010027] [Citation(s) in RCA: 134] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/18/2020] [Accepted: 12/22/2020] [Indexed: 12/11/2022] Open
Abstract
Gastric cancer constitutes one of the most prevalent malignancies in both sexes; it is currently the fourth major cause of cancer-related deaths worldwide. The pathogenesis of gastric cancer is associated with the interaction between genetic and environmental factors, among which infection by Helicobacter pylori (H. pylori) is of major importance. The invasion, survival, colonization, and stimulation of further inflammation within the gastric mucosa are possible due to several evasive mechanisms induced by the virulence factors that are expressed by the bacterium. The knowledge concerning the mechanisms of H. pylori pathogenicity is crucial to ameliorate eradication strategies preventing the possible induction of carcinogenesis. This review highlights the current state of knowledge and the most recent findings regarding H. pylori virulence factors and their relationship with gastric premalignant lesions and further carcinogenesis.
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Affiliation(s)
- Jacek Baj
- Department of Anatomy, Medical University of Lublin, 20-400 Lublin, Poland;
| | - Alicja Forma
- Chair and Department of Forensic Medicine, Medical University of Lublin, 20-090 Lublin, Poland;
| | - Monika Sitarz
- Department of Conservative Dentistry with Endodontics, Medical University of Lublin, 20-090 Lublin, Poland;
| | - Piero Portincasa
- Clinica Medica “Augusto Murri”, Department of Biomedical Sciences and Human Oncology, University of Bari “Aldo Moro”, 70124 Bari, Italy;
| | - Gabriella Garruti
- Section of Endocrinology, Department of Emergency and Organ Transplantations, University of Bari “Aldo Moro” Medical School, Piazza G. Cesare 11, 70124 Bari, Italy;
| | - Danuta Krasowska
- Department of Dermatology, Venerology and Paediatric Dermatology of Medical University of Lublin, 20-081 Lublin, Poland;
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Bernardini G, Figura N, Ponzetto A, Marzocchi B, Santucci A. Application of proteomics to the study of Helicobacter pylori and implications for the clinic. Expert Rev Proteomics 2017; 14:477-490. [PMID: 28513226 DOI: 10.1080/14789450.2017.1331739] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Helicobacter pylori (H. pylori) is a gram-negative bacterium that colonizes the gastric epithelium and mucous layer of more than half the world's population. H. pylori is a primary human pathogen, responsible for the development of chronic gastritis, peptic ulceration and gastric cancer. Proteomics is impacting several aspects of medical research: understanding the molecular basis of infection and disease manifestation, identification of therapeutic targets and discovery of clinically relevant biomarkers. Areas covered: The main aim of the present review is to provide a comprehensive overview of the contribution of proteomics to the study of H. pylori infection pathophysiology. In particular, we focused on the role of the bacterium and its most important virulence factor, CagA, in the progression of gastric cells transformation and cancer progression. We also discussed the proteomic approaches aimed at the investigation of the host response to bacterial infection. Expert commentary: In the field of proteomics of H. pylori, comprehensive analysis of clinically relevant proteins (functional proteomics) rather than entire proteomes will result in important medical outcomes. Finally, we provided an outlook on the potential development of proteomics in H. pylori research.
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Affiliation(s)
- Giulia Bernardini
- a Dipartimento di Biotecnologie , Chimica e Farmacia, Università degli Studi di Siena , Siena , Italy
| | - Natale Figura
- a Dipartimento di Biotecnologie , Chimica e Farmacia, Università degli Studi di Siena , Siena , Italy
| | - Antonio Ponzetto
- b Dipartimento di Scienze Mediche , Università degli Studi di Torino , Torino , Italy
| | - Barbara Marzocchi
- a Dipartimento di Biotecnologie , Chimica e Farmacia, Università degli Studi di Siena , Siena , Italy
| | - Annalisa Santucci
- a Dipartimento di Biotecnologie , Chimica e Farmacia, Università degli Studi di Siena , Siena , Italy
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Thamphiwatana S, Gao W, Pornpattananangkul D, Zhang Q, Fu V, Li J, Li J, Obonyo M, Zhang L. Phospholipase A2-responsive antibiotic delivery via nanoparticle-stabilized liposomes for the treatment of bacterial infection. J Mater Chem B 2014; 2:8201-8207. [PMID: 25544886 PMCID: PMC4276341 DOI: 10.1039/c4tb01110d] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Adsorbing small charged nanoparticles onto liposome surfaces to stabilize them against fusion and payload leakage has resulted in a new class of liposomes capable of environment-responsive drug delivery. Herein, we engineered a liposome formulation with a lipid composition sensitive to bacterium-secreted phospholipase A2 (PLA2) and adsorbed chitosan-modified gold nanoparticles (AuChi) onto the liposome surface. The resulting AuChi-stabilized liposomes (AuChi-liposomes) showed prohibited fusion activity and negligible drug leakage. However, upon exposure to either purified PLA2 enzyme or PLA2 secreted by Helicobacter pylori (H. pylori) bacteria in culture, AuChi-liposomes rapidly released the encapsulated payloads and such responsive release was retarded by adding quinacrine dihydrochloride, a PLA2 inhibitor. When loaded with doxycycline, AuChi-liposomes effectively inhibited H. pylori growth. Overall, the AuChi-liposomes allowed for smart "on-demand" antibitoic delivery: the more enzymes or bacteria present at the infection site, the more drug will be released to treat the infection. Given the strong association of PLA2 with a diverse range of diseases, the present liposomal delivery technique holds broad application potential for tissue microenvironment-responsive drug delivery.
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Affiliation(s)
- Soracha Thamphiwatana
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, USA
- Moores Cancer Center, University of California, San Diego, La Jolla, California 92093, USA
| | - Weiwei Gao
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, USA
- Moores Cancer Center, University of California, San Diego, La Jolla, California 92093, USA
| | - Dissaya Pornpattananangkul
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, USA
- Moores Cancer Center, University of California, San Diego, La Jolla, California 92093, USA
| | - Qiangzhe Zhang
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, USA
| | - Victoria Fu
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, USA
- Moores Cancer Center, University of California, San Diego, La Jolla, California 92093, USA
| | - Jiayang Li
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, USA
| | - Jieming Li
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, USA
| | - Marygorret Obonyo
- Department of Medicine, University of California, San Diego, La Jolla, California 92093, USA
| | - Liangfang Zhang
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, USA
- Moores Cancer Center, University of California, San Diego, La Jolla, California 92093, USA
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