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Wu C, Jiang P, Su W, Yan Y. Alkaline Phosphatase-Instructed Peptide Assemblies for Imaging and Therapeutic Applications. Biomacromolecules 2024. [PMID: 39185628 DOI: 10.1021/acs.biomac.4c00795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/27/2024]
Abstract
Self-assembly, a powerful strategy for constructing highly stable and well-ordered supramolecular structures, widely exists in nature and in living systems. Peptides are frequently used as building blocks in the self-assembly process due to their advantageous characteristics, such as ease of synthesis, tunable mechanical stability, good biosafety, and biodegradability. Among the initiators for peptide self-assembly, enzymes are excellent candidates for guiding this process under mild reaction conditions. As a crucial and commonly used biomarker, alkaline phosphatase (ALP) cleaves phosphate groups, triggering a hydrophilicity-to-hydrophobicity transformation that induces peptide self-assembly. In recent years, ALP-instructed peptide self-assembly has made breakthroughs in biological imaging and therapy, inspiring the development of self-assembly biomaterials for diagnosis and therapeutics. In this review, we highlight the most recent advancements in ALP-instructed peptide assemblies and provide perspectives on their potential impact. Finally, we briefly discuss the ongoing challenges for future research in this field.
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Affiliation(s)
- Chengfan Wu
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Pingge Jiang
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Wen Su
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
| | - Yunfeng Yan
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China
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2
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Zhang H, Mou J, Ding J, Qin W. Peptide-Driven Assembly of Magnetic Beads for Potentiometric Sensing of Bacterial Enzyme at a Subcellular Level. ACS Sens 2024. [PMID: 39180154 DOI: 10.1021/acssensors.4c01632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/26/2024]
Abstract
Bacterial enzymes with different subcellular localizations play a critical ecological role in biogeochemical processing. However, precisely quantifying enzymes localized at certain subcellular levels, such as extracellular enzymes, has not yet been fully realized due to the complexity and dynamism of the bacterial outer membrane. Here we present a magneto-controlled potentiometric sensing platform for the specific detection of extracellular enzymatic activity. Alkaline phosphatase (ALP), which is one of the crucial hydrolytic enzymes in the ocean, was selected as the target enzyme. Magnetic beads functionalized with an ALP-responsive self-assembled peptide (GGGGGFFFpYpYEEE, MBs-peptides) prevent negatively charged peptides from entering the bacterial outer membrane, thereby enabling direct potentiometric sensing of extracellular ALP both attached to the bacterial cell surface and released into the surrounding environment. The dephosphorylation-triggered assembly of peptide-coupled magnetic beads can be directly and sensitively measured by using a magneto-controlled sensor. In this study, extracellular ALP activity of Pseudomonas aeruginosa at concentrations ranging from 10 to 1.0 × 105 CFU mL-1 was specifically and sensitively monitored. Moreover, this magneto-controlled potentiometric method enabled a simple and accurate assay of ALP activity across different subcellular localizations.
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Affiliation(s)
- Han Zhang
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, Shandong 264003, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Junsong Mou
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, Shandong 264003, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Jiawang Ding
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, Shandong 264003, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Wei Qin
- CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Shandong Key Laboratory of Coastal Environmental Processes, YICCAS, Yantai, Shandong 264003, P.R. China
- Laboratory for Marine Biology and Biotechnology, Qingdao Marine Science and Technology Center, Qingdao, Shandong 266237, P. R. China
- Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao, Shandong 266071, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
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3
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Cai X, Xu W, Ren C, Zhang L, Zhang C, Liu J, Yang C. Recent progress in quantitative analysis of self-assembled peptides. EXPLORATION (BEIJING, CHINA) 2024; 4:20230064. [PMID: 39175887 PMCID: PMC11335468 DOI: 10.1002/exp.20230064] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 10/05/2023] [Indexed: 08/24/2024]
Abstract
Self-assembled peptides have been among the important biomaterials due to its excellent biocompatibility and diverse functions. Over the past decades, substantial progress and breakthroughs have been made in designing self-assembled peptides with multifaceted biomedical applications. The techniques for quantitative analysis, including imaging-based quantitative techniques, chromatographic technique and computational approach (molecular dynamics simulation), are becoming powerful tools for exploring the structure, properties, biomedical applications, and even supramolecular assembly processes of self-assembled peptides. However, a comprehensive review concerning these quantitative techniques remains scarce. In this review, recent progress in techniques for quantitative investigation of biostability, cellular uptake, biodistribution, self-assembly behaviors of self-assembled peptide etc., are summarized. Specific applications and roles of these techniques are highlighted in detail. Finally, challenges and outlook in this field are concluded. It is believed that this review will provide technical guidance for researchers in the field of peptide-based materials and pharmaceuticals, and facilitate related research for newcomers in this field.
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Affiliation(s)
- Xiaoyao Cai
- Key Laboratory of Radiopharmacokinetics for Innovative Drugs, Chinese Academy of Medical Sciences, Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation MedicineChinese Academy of Medical Sciences & Peking Union Medical CollegeTianjinP. R. China
| | - Wei Xu
- Department of PathologyCharacteristic Medical Center of Chinese People's Armed Police ForcesTianjinP. R. China
| | - Chunhua Ren
- Key Laboratory of Radiopharmacokinetics for Innovative Drugs, Chinese Academy of Medical Sciences, Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation MedicineChinese Academy of Medical Sciences & Peking Union Medical CollegeTianjinP. R. China
| | - Liping Zhang
- Key Laboratory of Radiopharmacokinetics for Innovative Drugs, Chinese Academy of Medical Sciences, Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation MedicineChinese Academy of Medical Sciences & Peking Union Medical CollegeTianjinP. R. China
| | - Congrou Zhang
- Metabolomics and Analytics Center, Leiden Academic Centre of Drug ResearchLeiden UniversityLeidenThe Netherlands
| | - Jianfeng Liu
- Key Laboratory of Radiopharmacokinetics for Innovative Drugs, Chinese Academy of Medical Sciences, Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation MedicineChinese Academy of Medical Sciences & Peking Union Medical CollegeTianjinP. R. China
| | - Cuihong Yang
- Key Laboratory of Radiopharmacokinetics for Innovative Drugs, Chinese Academy of Medical Sciences, Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation MedicineChinese Academy of Medical Sciences & Peking Union Medical CollegeTianjinP. R. China
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Li L, Wang R, Zhao B, Yin B, Zhang H, Liang C, Hu X. Enzyme-Triggered Polyelectrolyte Complex for Responsive Delivery of α-Helical Polypeptides to Optimize Antibacterial Therapy. Biomacromolecules 2024; 25:3112-3121. [PMID: 38651274 DOI: 10.1021/acs.biomac.4c00206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Responsive nanomaterials hold significant promise in the treatment of bacterial infections by recognizing internal or external stimuli to achieve stimuli-responsive behavior. In this study, we present an enzyme-responsive polyelectrolyte complex micelles (PTPMN) with α-helical cationic polypeptide as a coacervate-core for the treatment of Escherichia coli (E. coli) infection. The complex was constructed through electrostatic interaction between cationic poly(glutamic acid) derivatives and phosphorylation-modified poly(ethylene glycol)-b-poly(tyrosine) (PEG-b-PPTyr) by directly dissolving them in aqueous solution. The cationic polypeptide adopted α-helical structure and demonstrated excellent broad-spectrum antibacterial activity against both Gram-negative and Gram-positive bacteria, with a minimum inhibitory concentration (MIC) as low as 12.5 μg mL-1 against E. coli. By complexing with anionic PEG-b-PPTyr, the obtained complex formed β-sheet structures and exhibited good biocompatibility and low hemolysis. When incubated in a bacterial environment, the complex cleaved its phosphate groups triggered by phosphatases secreted by bacteria, exposing the highly α-helical conformation and restoring its effective bactericidal ability. In vivo experiments confirmed accelerated healing in E. coli-infected wounds.
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Affiliation(s)
- Liuxuan Li
- Institute of Polymer Science and Engineering, School of Chemical Engineering, Hebei University of Technology, Tianjin 300130, PR China
| | - Ruoxue Wang
- Institute of Polymer Science and Engineering, School of Chemical Engineering, Hebei University of Technology, Tianjin 300130, PR China
| | - Bo Zhao
- School of Health Sciences and Biomedical Engineering, Hebei University of Technology, Tianjin 300130, PR China
| | - Bowen Yin
- Institute of Polymer Science and Engineering, School of Chemical Engineering, Hebei University of Technology, Tianjin 300130, PR China
| | - Huijuan Zhang
- Institute of Polymer Science and Engineering, School of Chemical Engineering, Hebei University of Technology, Tianjin 300130, PR China
| | - Chunyong Liang
- School of Health Sciences and Biomedical Engineering, Hebei University of Technology, Tianjin 300130, PR China
| | - Xiuli Hu
- Institute of Polymer Science and Engineering, School of Chemical Engineering, Hebei University of Technology, Tianjin 300130, PR China
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Zhou Y, Xu L, Sun X, Zhan W, Liang G. In situ peptide assemblies for bacterial infection imaging and treatment. NANOSCALE 2024; 16:3211-3225. [PMID: 38288668 DOI: 10.1039/d3nr05557d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
Bacterial infections, especially antibiotic-resistant ones, remain a major threat to human health. Advances in nanotechnology have led to the development of numerous antimicrobial nanomaterials. Among them, in situ peptide assemblies, formed by biomarker-triggered self-assembly of peptide-based building blocks, have received increasing attention due to their unique merits of good spatiotemporal controllability and excellent disease accumulation and retention. In recent years, a variety of "turn on" imaging probes and activatable antibacterial agents based on in situ peptide assemblies have been developed, providing promising alternatives for the treatment and diagnosis of bacterial infections. In this review, we introduce representative design strategies for in situ peptide assemblies and highlight the bacterial infection imaging and treatment applications of these supramolecular materials. Besides, current challenges in this field are proposed.
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Affiliation(s)
- Yanyan Zhou
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructure, Key Laboratory of Intelligent Optical Sensing and Manipulation, Ministry of Education, Department of Physics, Nanjing University, Nanjing 210093, China
- Wenzhou Key Laboratory of Biophysics, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325000, China
| | - Lingling Xu
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou, Nanjing, Jiangsu 210096, China.
| | - Xianbao Sun
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou, Nanjing, Jiangsu 210096, China.
| | - Wenjun Zhan
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou, Nanjing, Jiangsu 210096, China.
| | - Gaolin Liang
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, 2 Sipailou, Nanjing, Jiangsu 210096, China.
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Jitaru SC, Enache AC, Cojocaru C, Drochioiu G, Petre BA, Gradinaru VR. Self-Assembly of a Novel Pentapeptide into Hydrogelated Dendritic Architecture: Synthesis, Properties, Molecular Docking and Prospective Applications. Gels 2024; 10:86. [PMID: 38391416 PMCID: PMC10887771 DOI: 10.3390/gels10020086] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/16/2024] [Accepted: 01/19/2024] [Indexed: 02/24/2024] Open
Abstract
Currently, ultrashort oligopeptides consisting of fewer than eight amino acids represent a cutting-edge frontier in materials science, particularly in the realm of hydrogel formation. By employing solid-phase synthesis with the Fmoc/tBu approach, a novel pentapeptide, FEYNF-NH2, was designed, inspired by a previously studied sequence chosen from hen egg-white lysozyme (FESNF-NH2). Qualitative peptide analysis was based on reverse-phase high performance liquid chromatography (RP-HPLC), while further purification was accomplished using solid-phase extraction (SPE). Exact molecular ion confirmation was achieved by matrix-assisted laser desorption-ionization mass spectrometry (MALDI-ToF MS) using two different matrices (HCCA and DHB). Additionally, the molecular ion of interest was subjected to tandem mass spectrometry (MS/MS) employing collision-induced dissociation (CID) to confirm the synthesized peptide structure. A combination of research techniques, including Fourier-transform infrared spectroscopy (FTIR), fluorescence analysis, transmission electron microscopy, polarized light microscopy, and Congo red staining assay, were carefully employed to glean valuable insights into the self-assembly phenomena and gelation process of the modified FEYNF-NH2 peptide. Furthermore, molecular docking simulations were conducted to deepen our understanding of the mechanisms underlying the pentapeptide's supramolecular assembly formation and intermolecular interactions. Our study provides potential insights into amyloid research and proposes a novel peptide for advancements in materials science. In this regard, in silico studies were performed to explore the FEYNF peptide's ability to form polyplexes.
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Affiliation(s)
- Stefania-Claudia Jitaru
- Faculty of Chemistry, "Alexandru Ioan Cuza" University, 11 Carol I Bd., 700506 Iasi, Romania
| | - Andra-Cristina Enache
- "Petru Poni" Institute of Macromolecular Chemistry, 41-A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Corneliu Cojocaru
- "Petru Poni" Institute of Macromolecular Chemistry, 41-A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Gabi Drochioiu
- Faculty of Chemistry, "Alexandru Ioan Cuza" University, 11 Carol I Bd., 700506 Iasi, Romania
| | - Brindusa-Alina Petre
- Faculty of Chemistry, "Alexandru Ioan Cuza" University, 11 Carol I Bd., 700506 Iasi, Romania
- TRANSCEND-Regional Institute of Oncology, 700483 Iasi, Romania
| | - Vasile-Robert Gradinaru
- Faculty of Chemistry, "Alexandru Ioan Cuza" University, 11 Carol I Bd., 700506 Iasi, Romania
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7
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Yan Z, Liu Y, Zhao L, Hu J, Du Y, Peng X, Liu Z. In situ stimulus-responsive self-assembled nanomaterials for drug delivery and disease treatment. MATERIALS HORIZONS 2023; 10:3197-3217. [PMID: 37376926 DOI: 10.1039/d3mh00592e] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/29/2023]
Abstract
The individual motifs that respond to specific stimuli for the self-assembly of nanomaterials play important roles. In situ constructed nanomaterials are formed spontaneously without human intervention and have promising applications in bioscience. However, due to the complex physiological environment of the human body, designing stimulus-responsive self-assembled nanomaterials in vivo is a challenging problem for researchers. In this article, we discuss the self-assembly principles of various nanomaterials in response to the tissue microenvironment, cell membrane, and intracellular stimuli. We propose the applications and advantages of in situ self-assembly in drug delivery and disease diagnosis and treatment, with a focus on in situ self-assembly at the lesion site, especially in cancer. Additionally, we introduce the significance of introducing exogenous stimulation to construct self-assembly in vivo. Based on this foundation, we put forward the prospects and possible challenges in the field of in situ self-assembly. This review uncovers the relationship between the structure and properties of in situ self-assembled nanomaterials and provides new ideas for innovative drug molecular design and development to solve the problems in the targeted delivery and precision medicine.
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Affiliation(s)
- Ziling Yan
- Department of Pharmaceutical Engineering, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, Hunan Province, P. R. China
| | - Yanfei Liu
- Department of Pharmaceutical Engineering, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, Hunan Province, P. R. China
| | - Licheng Zhao
- Department of Pharmaceutical Engineering, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, Hunan Province, P. R. China
| | - Jiaxin Hu
- Department of Pharmaceutics, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, Hunan Province, P. R. China.
| | - Yimin Du
- Department of Pharmaceutics, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, Hunan Province, P. R. China.
| | - Xingxing Peng
- Department of Pharmaceutics, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, Hunan Province, P. R. China.
| | - Zhenbao Liu
- Department of Pharmaceutics, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha 410013, Hunan Province, P. R. China.
- Molecular Imaging Research Center of Central South University, Changsha 410008, Hunan Province, P. R. China
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8
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Wu H, Ju S, Ling Y, Sun H, Tang Y, Tong C. Gelatinous lanthanide coordination polymer with aggregation-enhanced antenna effect for ratiometric detection of endogenous alkaline phosphatase. J Colloid Interface Sci 2023; 645:338-349. [PMID: 37150007 DOI: 10.1016/j.jcis.2023.04.147] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/24/2023] [Accepted: 04/27/2023] [Indexed: 05/09/2023]
Abstract
Aggregation-induced emission (AIE) and antenna effect (AE) are two significant behaviors that have attracted increasing attention. However, it is challenging to achieve the synergistic effect of AIE and AE in luminescent materials for more extensive applications. Here, four gelatinous Ln3+ coordination polymers (Ln-CPs) are synthesized by self-assembly of ciprofloxacin (CIP), adenosine monophosphate (AMP), and Ln3+ ions in aqueous medium. Encouragingly, a remarkable increase in the characteristic fluorescence of Ln3+ and a significant decrease in CIP are observed along with increasing concentration of Ln-CPs, which is attributed to the large aggregates formed by self-assembly that strictly constrain the intramolecular motions of antenna ligands, thereby achieving the aggregation-enhanced AE. More meaningfully, Eu-CP not only shows a rice-like morphology at high aggregation state, but also provides an opportunity for the selective detection of alkaline phosphatase (ALP). A new flower-like polymer is formed upon incubating Eu-CP with ALP, accompanied by the fluorescence quenching of Eu3+ and recovery of CIP, a ratiometric determination of ALP in the range of 0.1-6.0 U·L-1 is thus achieved. Additionally, ALP assay in human serum and bioimaging in living cells have been successfully performed. This research opens a new horizon for the fabrication of Ln3+-based luminescent materials with promising applications.
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Affiliation(s)
- Huifang Wu
- Nantong Key Lab of Intelligent and New Energy Materials, School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China.
| | - Shiying Ju
- Nantong Key Lab of Intelligent and New Energy Materials, School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Yuwei Ling
- Nantong Key Lab of Intelligent and New Energy Materials, School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Haozhe Sun
- Nantong Key Lab of Intelligent and New Energy Materials, School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China
| | - Yanfeng Tang
- Nantong Key Lab of Intelligent and New Energy Materials, School of Chemistry and Chemical Engineering, Nantong University, Nantong 226019, China.
| | - Changlun Tong
- Key Laboratory of Environmental Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
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Yang S, Yu H, Xu X, Yang T, Wei Y, Zan R, Zhang X, Ma Q, Shum HC, Song Y. AIEgen-Conjugated Phase-Separating Peptides Illuminate Intracellular RNA through Coacervation-Induced Emission. ACS NANO 2023; 17:8195-8203. [PMID: 37093110 DOI: 10.1021/acsnano.2c12072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Intrinsically disordered peptides drive dynamic liquid-liquid phase separation (LLPS) in membraneless organelles and encode cellular functions in response to environmental stimuli. Engineering design on phase-separating peptides (PSPs) holds great promise for bioimaging, vaccine delivery, and disease theranostics. However, recombinant PSPs are devoid of robust luminogen or suitable cell permeability required for intracellular applications. Here, we synthesize a peptide-based RNA sensor by covalently connecting tetraphenylethylene (TPE), an aggregation-induced emission luminogen (AIEgens), to tandem peptide repeats of (RRASL)n (n = 1, 2, 3). Interestingly, the conjugation of TPE luminogen promotes liquid-liquid phase separation of the peptide repeats, and the minimum coacervation concentration (MCC) of TPE-(RRASL)n is decreased by an order of magnitude, compared to that of the untagged, TPE-free counterparts. Moreover, the luminescence of TPE-(RRASL)n is enhanced by up to 700-fold with increasing RNA concentration, which is attributed to the constricted rotation of the TPE moiety as a result of peptide/RNA coacervates within the droplet phase. Besides, at concentrations above MCC, TPE-(RRASL)n can efficiently penetrate through human gallbladder carcinoma cells (SGC-996), translocate into the cell nucleus, and colocalize with intracellular RNA. These observations suggest that AIEgen-conjugated PSPs can be used as droplet-based biosensors for intracellular RNA imaging through a regime of coacervation-induced emission.
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Affiliation(s)
- Shi Yang
- State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Han Yu
- State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xiuli Xu
- State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Ting Yang
- State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yue Wei
- State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Rui Zan
- Shanghai Engineering Research Center of Biliary Tract Minimal Invasive Surgery and Materials, Shanghai 200032, China
| | - Xiaonong Zhang
- State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Qingming Ma
- School of Pharmacy, Qingdao University, Qingdao 266071, China
| | - Ho Cheung Shum
- Department of Mechanical Engineering, The University of Hong Kong, Hong Kong 999077, China
| | - Yang Song
- State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
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10
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Jin Z, Li Y, Li K, Zhou J, Yeung J, Ling C, Yim W, He T, Cheng Y, Xu M, Creyer MN, Chang YC, Fajtová P, Retout M, Qi B, Li S, O'Donoghue AJ, Jokerst JV. Peptide Amphiphile Mediated Co-assembly for Nanoplasmonic Sensing. Angew Chem Int Ed Engl 2023; 62:e202214394. [PMID: 36409652 PMCID: PMC9852014 DOI: 10.1002/anie.202214394] [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: 09/29/2022] [Revised: 11/20/2022] [Accepted: 11/21/2022] [Indexed: 11/22/2022]
Abstract
Aromatic interactions are commonly involved in the assembly of naturally occurring building blocks, and these interactions can be replicated in an artificial setting to produce functional materials. Here we describe a colorimetric biosensor using co-assembly experiments with plasmonic gold and surfactant-like peptides (SLPs) spanning a wide range of aromatic residues, polar stretches, and interfacial affinities. The SLPs programmed in DDD-(ZZ)x -FFPC self-assemble into higher-order structures in response to a protease and subsequently modulate the colloidal dispersity of gold leading to a colorimetric readout. Results show the strong aggregation propensity of the FFPC tail without polar DDD head. The SLPs were specific to the target protease, i.e., Mpro , a biomarker for SARS-CoV-2. This system is a simple and visual tool that senses Mpro in phosphate buffer, exhaled breath condensate, and saliva with detection limits of 15.7, 20.8, and 26.1 nM, respectively. These results may have value in designing other protease testing methods.
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Affiliation(s)
- Zhicheng Jin
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Yi Li
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Ke Li
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), Singapore, 138634, Singapore
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Jiajing Zhou
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Justin Yeung
- Department of Bioengineering, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Chuxuan Ling
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Wonjun Yim
- Materials Science and Engineering Program, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Tengyu He
- Materials Science and Engineering Program, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Yong Cheng
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Ming Xu
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Matthew N Creyer
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Yu-Ci Chang
- Materials Science and Engineering Program, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Pavla Fajtová
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Maurice Retout
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Baiyan Qi
- Materials Science and Engineering Program, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Shuzhou Li
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Anthony J O'Donoghue
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Jesse V Jokerst
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
- Materials Science and Engineering Program, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
- Department of Radiology, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
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Han J, Zhang Z, Liu D, Wang X. Combining tetraphenylethene (TPE) derivative cations with Eu 3+-β-diketone complex anions for tunable luminescence. Chem Commun (Camb) 2022; 59:90-93. [PMID: 36472145 DOI: 10.1039/d2cc03903f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Tetraphenylethene (TPE) derivative cations (TPE+) and Eu3+-β-diketone complex anions (Eu(ABM)4-) were combined to construct a novel dual energy transfer system (TPE+ to Eu3+ and ABM to Eu3+). Our system exhibits tunable luminescence in DMF/water mixtures under different fw conditions owing to the AIE and ACQ properties of TPE+ and ABM, respectively. Its luminescence can be also regulated by adding P-containing oxysalts or polyacrylic acids.
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Affiliation(s)
- Jicao Han
- Marine College, Shandong University, Weihai, Weihai 264209, P. R. China.
| | - Zhengyu Zhang
- Marine College, Shandong University, Weihai, Weihai 264209, P. R. China.
| | - Dongdong Liu
- Marine College, Shandong University, Weihai, Weihai 264209, P. R. China.
| | - Xi Wang
- Marine College, Shandong University, Weihai, Weihai 264209, P. R. China.
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12
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Qin L, Ren X, Hu K, Wu D, Guo Z, Wang S, Jiang L, Hu Y. Supramolecular host-guest interaction-driven electrochemical recognition for pyrophosphate and alkaline phosphatase analysis. Chembiochem 2022; 23:e202200413. [PMID: 35997506 DOI: 10.1002/cbic.202200413] [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: 07/20/2022] [Revised: 08/20/2022] [Indexed: 11/10/2022]
Abstract
Herein, we report an electrochemical biosensor based on the supramolecular host-guest recognition between cucurbit[7]uril (CB[7]) and L -Phenylalanine-Cu(II) Complex for pyrophosphate (PPi) and alkaline phosphatase (ALP) analysis. First, L -Phe-Cu(II) Complex is simply synthesized by the complexation of Cu(II) (metal node) with L -Phe (bioorganic ligand), which can be immobilized onto CB[7] modified electrode via host-guest interaction of CB[7] and L -Phe. In this process, the signal of the Complex triggered electro-catalytic reduction of H 2 O 2 can be captured. Next, in the view of strong chelation between PPi and Cu(II), a biosensing system of the model "PPi and Cu(II) premixing, then adding L -Phe" is designed and the platform can be applied for PPi analysis well by hampering the formation of L -Phe-Cu(II) Complex. Along with ALP introduction, PPi can be hydrolyzed into orthophosphate (Pi), where abundant Cu(II) ions are released to form L -Phe-Cu(II) Complex, which gives rise to the catalytic reaction of Complex to H 2 O 2 reduction. The quantitative analysis of H 2 O 2 , PPi and ALP activity is achieved successfully and the detection of limits are 0.067 μM, 0.42 μM and 0.09 mU/mL ( S / N =3), respectively. With the merits of high sensitivity and selectivity, cost-effectiveness, and simplification, our developed analytical system has great potential to act on diagnosis and treatment of ALP-related diseases.
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Affiliation(s)
| | | | | | - Di Wu
- Ningbo College of Health Sciences, Chemistry, CHINA
| | | | - Sui Wang
- Ningbo University, Chemistry, CHINA
| | | | - Yufang Hu
- Ningbo University, Chemistry, 818 Fenghua Road,Jiangbei,Ningbo,Zhejiang, 315211, Ningbo, CHINA
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13
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Impresari E, Bossi A, Lumina EM, Ortenzi MA, Kothuis JM, Cappelletti G, Maggioni D, Christodoulou MS, Bucci R, Pellegrino S. Fatty Acids/Tetraphenylethylene Conjugates: Hybrid AIEgens for the Preparation of Peptide-Based Supramolecular Gels. Front Chem 2022; 10:927563. [PMID: 36003614 PMCID: PMC9393247 DOI: 10.3389/fchem.2022.927563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Accepted: 06/22/2022] [Indexed: 11/13/2022] Open
Abstract
Aggregation-induced emissive materials are gaining particular attention in the last decades due to their wide application in different fields, from optical devices to biomedicine. In this work, compounds having these kinds of properties, composed of tetraphenylethylene scaffold combined with fatty acids of different lengths, were synthesized and characterized. These molecules were found able to self-assemble into different supramolecular emissive structures depending on the chemical composition and water content. Furthermore, they were used as N-terminus capping agents in the development of peptide-based materials. The functionalization of a 5-mer laminin-derived peptide led to the obtainment of luminescent fibrillary materials that were not cytotoxic and were able to form supramolecular gels in aqueous environment.
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Affiliation(s)
- Elisa Impresari
- DISFARM, Dipartimento Di Scienze Farmaceutiche, Sezione Chimica Generale e Organica “A. Marchesini”, Università degli Studi di Milano, Milan, Italy
| | - Alberto Bossi
- Istituto di Scienze e Tecnologie Chimiche “G.Natta”, Consiglio Nazionale delle Ricerche (CNR-SCITEC), Milan, Italy
- SmartMatLab Center, Milan, Italy
| | - Edoardo Mario Lumina
- DISFARM, Dipartimento Di Scienze Farmaceutiche, Sezione Chimica Generale e Organica “A. Marchesini”, Università degli Studi di Milano, Milan, Italy
| | - Marco Aldo Ortenzi
- CRC Materiali Polimerici “LaMPo”, Dipartimento di Chimica, Università degli Studi di Milano, Milan, Italy
| | | | | | - Daniela Maggioni
- Dipartimento di Chimica, Università degli Studi di Milano, Milan, Italy
| | - Michael S. Christodoulou
- Departiment of Food, Environmental and Nutritional Sciences (DeFENS), Università degli Studi di Milano, Milan, Italy
| | - Raffaella Bucci
- DISFARM, Dipartimento Di Scienze Farmaceutiche, Sezione Chimica Generale e Organica “A. Marchesini”, Università degli Studi di Milano, Milan, Italy
| | - Sara Pellegrino
- DISFARM, Dipartimento Di Scienze Farmaceutiche, Sezione Chimica Generale e Organica “A. Marchesini”, Università degli Studi di Milano, Milan, Italy
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