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Dong RZ, Shi XH, Liu H, Yu S, Niu KK, Xing LB. A supramolecular photosensitizer based on triphenylamine and pyrazine with aggregation-induced emission properties for high-efficiency photooxidation reactions. J Colloid Interface Sci 2024; 665:871-878. [PMID: 38564951 DOI: 10.1016/j.jcis.2024.03.197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 03/12/2024] [Accepted: 03/29/2024] [Indexed: 04/04/2024]
Abstract
Recently, there has been a great interest in the study of photocatalysts (PCs) and photosensitizers (PSs) in the field of organic photocatalysis. In the present study, a pure organic thermally activated delayed fluorescence (TADF) molecule 4,4'-(12-(pyridin-4-yl)dibenzo[f,h]pyrido[2,3-b]quinoxaline-3,6-diyl)bis(N,N-diphenylaniline) (DPQ-TPA) was designed and synthesized, which not only have excellent TADF property and small energy splitting (ΔEST), but also can self-assembly in water to form cross-linked nanoparticles with exceptional aggregation-induced emission (AIE) characteristics. DPQ-TPA exhibits excellent remarkable selectivity and notably enhances the production capacity of reactive oxygen species (ROS), particularly 1O2, which was employed as a highly effective photocatalyst in the photooxidation reaction of phosphine and hydroazobenzenes under blue light irradiation with high yields up to 94% and 91%, respectively. This work expands the potential application of (donor-acceptor) D-A type AIE-TADF molecules in photocatalytic organic transformations through supramolecular self-assembly.
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Affiliation(s)
- Rui-Zhi Dong
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255000, PR China
| | - Xiao-Han Shi
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255000, PR China
| | - Hui Liu
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255000, PR China
| | - Shengsheng Yu
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255000, PR China
| | - Kai-Kai Niu
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255000, PR China.
| | - Ling-Bao Xing
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255000, PR China.
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2
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Chen H, Xing C, Lei H, Yan B, Zhang H, Tong T, Guan Y, Kang Y, Pang J. ROS-driven supramolecular nanoparticles exhibiting efficient drug delivery for chemo/Chemodynamic combination therapy for Cancer treatment. J Control Release 2024; 368:637-649. [PMID: 38484895 DOI: 10.1016/j.jconrel.2024.03.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 02/26/2024] [Accepted: 03/11/2024] [Indexed: 03/21/2024]
Abstract
Drug-based supramolecular self-assembling delivery systems have enhanced the bioavailability of chemotherapeutic drugs and reduced systemic side effects; however, improving the delivery efficiency and responsive release ability of these systems remains challenging. This study focuses primarily on the utilization of per-6-thio-β-cyclodextrin (CD) to link a significant quantity of paclitaxel (PTX) via ROS-sensitive thioketal (TK) linkages (designated as CDTP), thereby allowing efficiently drug release when exposed to high levels of reactive oxygen species (ROS) in the tumor microenvironment. To construct these supramolecular nanoparticles (NPs) with CDTP, we introduced PEGylated ferrocene (Fc) through host-guest interactions. The intracellular hydrogen peroxide (H2O2) is converted into hydroxyl radicals (•OH) through the Fc-catalyzed Fenton reaction. Additionally, the generated Fc+ consumes the antioxidant glutathione (GSH). In both in vivo and in vitro experiments, CDTP@Fc-PEG NPs were absorbed effectively by tumor cells, which increased levels of ROS and decreased levels of GSH, disrupting the redox balance of cancer cells and increasing their sensitivity to chemotherapy. Furthermore, CDTP@Fc-PEG NPs exhibited high tumor accumulation and cytotoxicity without causing significant toxicity to healthy organs. Collectively, our results suggest CDTP@Fc-PEG NPs as a promising supramolecular nano-delivery platform for high drug-loading of PTX and synergistic chemotherapy.
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Affiliation(s)
- Huikun Chen
- Department of Urology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China; Scientific Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China
| | - Chengyuan Xing
- Scientific Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China
| | - Hanqi Lei
- Department of Urology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China
| | - Binyuan Yan
- Department of Urology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China
| | - Hao Zhang
- Department of Urology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China; Scientific Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China
| | - Tongyu Tong
- Department of Urology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China; Scientific Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China
| | - Yupeng Guan
- Department of Urology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China; Scientific Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China
| | - Yang Kang
- Scientific Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China.
| | - Jun Pang
- Department of Urology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China.
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Zhang M, Qiu W, Nie R, Xia Q, Zhang D, Pan X. Macronutrient and PFOS bioavailability manipulated by aeration-driven rhizospheric organic nanocapsular assembly. Water Res 2024; 253:121334. [PMID: 38382293 DOI: 10.1016/j.watres.2024.121334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 01/31/2024] [Accepted: 02/17/2024] [Indexed: 02/23/2024]
Abstract
Ubiquitous presence of the extremely persistent pollutants, per- and polyfluoroalkyl substances, is drawing ever-increasing concerns for their high eco-environmental risks which, however, are insufficiently considered based on the assembly characteristics of those amphiphilic molecules in environment. This study investigated the re-organization and self-assembly of perfluorooctane sulfonate (PFOS) and macronutrient molecules from rhizospheric organic (RhO) matter induced with a common operation of aeration. Atomic force microscopy (AFM) with infrared spectroscopy (IR)-mapping clearly showed that, after aeration and stabilization, RhO nanocapsules (∼ 1000 nm or smaller) with a core of PFOS-protein complexes coated by "lipid-carbohydrate" layers were observed whereas the capsule structure with a lipid core surrounded by "protein-carbohydrate-protein" multilayers was obtained in the absence of PFOS. It is aeration that exerted the disassociation of pristine RhO components, after which the environmental concentration PFOS restructured the self-assembly structure in a conspicuous "disorder-to-order" transition. AFM IR-mapping analysis of faeces combined with quantification of component uptake denoted the decreased ingestion and utilization of both PFOS and proteins compared with lipids and carbohydrates when Daphnia magna were fed with RhO nanocapsules. RhO nanocapsules acted as double-edged swords via simultaneously impeding the bioaccessibility of hazardous PFOS molecules and macronutrient proteins; and the latter might be more significant, which caused a malnutrition status within merely 48 h. Elucidating the assembly structure of natural organic matter and environmental concentration PFOS, the finding of this work could be a crucial supplementation to the high-dose-dependent eco-effect investigations on PFOS.
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Affiliation(s)
- Ming Zhang
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310014, China
| | - Weifeng Qiu
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310014, China
| | - Rui Nie
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310014, China
| | - Qiaoyun Xia
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310014, China
| | - Daoyong Zhang
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310014, China.
| | - Xiangliang Pan
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310014, China.
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4
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Cai L, Chen Y, Lu Z, Wei M, Zhao X, Xie Y, Li J, Xiao S. Citric acid/chitosan adhesive with viscosity-controlled for wood bonding through supramolecular self-assembly. Carbohydr Polym 2024; 329:121765. [PMID: 38286541 DOI: 10.1016/j.carbpol.2023.121765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/12/2023] [Accepted: 12/28/2023] [Indexed: 01/31/2024]
Abstract
Developing bio-based sustainable wood adhesives is significant as a substitute for petroleum-derived adhesives. However, the existing bio-based adhesives have disadvantages of complex fabrication, uncontrollable viscosity, and poor water resistance. Herein, we developed a citric acid/chitosan adhesive with viscosity-controlled and water-resistant features by one-step dissolution at room temperature based on the supramolecular self-assembly strategy. Different wood products (plywood, laminated veneer lumber and particleboard) with superior performance were prepared by applying that adhesive on veneer and wood particles (fine and rough particles). The plywood test results showed that the citric acid/chitosan adhesive had dry and wet shear strengths outperforming the China National Standard (GB/T 9846-2015, ≥0.7 MPa), reaching 2.1 and 1.1 MPa, respectively. The adhesion mechanism was mechanical interlocks and cross-linking of citric acid/chitosan in adhesives with those in the cell wall. This work provides high promise for alternatives to traditional unsustainable wood adhesives (urea-formaldehyde, melamine-urea-formaldehyde and phenolic resins) for fabricating different wood products.
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Affiliation(s)
- Lijian Cai
- Key Laboratory of Bio-based Material Science & Technology (Ministry of Education), Northeast Forestry University, Harbin, PR China
| | - Yutong Chen
- Key Laboratory of Bio-based Material Science & Technology (Ministry of Education), Northeast Forestry University, Harbin, PR China
| | - Zetan Lu
- Key Laboratory of Bio-based Material Science & Technology (Ministry of Education), Northeast Forestry University, Harbin, PR China
| | - Ming Wei
- Engineering Research Center of Advanced Wooden Materials (Ministry of Education), Northeast Forestry University, Harbin, PR China
| | - Xin Zhao
- Key Laboratory of Bio-based Material Science & Technology (Ministry of Education), Northeast Forestry University, Harbin, PR China
| | - Yanjun Xie
- Key Laboratory of Bio-based Material Science & Technology (Ministry of Education), Northeast Forestry University, Harbin, PR China; Engineering Research Center of Advanced Wooden Materials (Ministry of Education), Northeast Forestry University, Harbin, PR China
| | - Jian Li
- Key Laboratory of Bio-based Material Science & Technology (Ministry of Education), Northeast Forestry University, Harbin, PR China; Engineering Research Center of Advanced Wooden Materials (Ministry of Education), Northeast Forestry University, Harbin, PR China.
| | - Shaoliang Xiao
- Key Laboratory of Bio-based Material Science & Technology (Ministry of Education), Northeast Forestry University, Harbin, PR China; Engineering Research Center of Advanced Wooden Materials (Ministry of Education), Northeast Forestry University, Harbin, PR China.
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5
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Ketkar RN, Dey P, Sodnawar T, Sharma S, M M, Dutta Choudhury S, Sadhukhan N. Dual Functional Microcapsule based on Monodisperse Short PEG Amphiphile for Drug Encapsulation and Protein Affinity Controlled Release. Chem Asian J 2024:e202400144. [PMID: 38487959 DOI: 10.1002/asia.202400144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 03/09/2024] [Indexed: 04/12/2024]
Abstract
A short monodisperse poly(ethylene glycol) (PEG) and a neutral organic rotamer conjugate TEG-BTA-2 amphiphile was designed for the construction of a stimuli-responsive switchable self-assembled structure for drug encapsulation by noncovalent interaction and targeted controlled delivery. A short PEG, tetraethylene glycol (TEG) was covalently attached with a neutral organic rotamer benzothiazole dye (BTA-2) affording the neutral TEG-BTA-2 (<500 D). The TEG-BTA-2 is self-assembled into a microsphere in an aqueous medium, but remarkably undergoes morphology change switching to a rice-like microcapsule for curcumin encapsulation. Curcumin-loaded microcapsules were stable in an aqueous solution, however, were noticed disintegrating upon the addition of BSA protein. This is possibly due to an interaction with BSA protein leading to a protein affinity-controlled curcumin release in a neutral PBS buffer. Moreover, cell internalization of the neutral amphiphile TEG-BTA-2 into A549 cells was observed by fluorescence microscopy, providing an opportunity for application as a molecular vehicle for targeted drug delivery and monitoring.
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Affiliation(s)
- Rohit N Ketkar
- Department of Speciality Chemicals Technology, Institute of Chemical Technology, Matunga (E), Mumbai, Maharashtra, 400019, India
| | - Paritosh Dey
- Department of Speciality Chemicals Technology, Institute of Chemical Technology, Matunga (E), Mumbai, Maharashtra, 400019, India
| | - Triveni Sodnawar
- Department of Biotechnology, Savitribai Phule Pune University, Ganeshkind Road, Pune, Maharashtra, 411007, India
| | - Shilpy Sharma
- Department of Biotechnology, Savitribai Phule Pune University, Ganeshkind Road, Pune, Maharashtra, 411007, India
| | - Manikandan M
- Medicinal Chemistry and Cell Biology Laboratory, Department of Chemical Sciences, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai, Maharashtra, 400005, India
| | - Sharmistha Dutta Choudhury
- Bhabha Atomic Research Centre, Mumbai, 400085, India
- Homi Bhabha National Institute Anushaktinagar, Mumbai, 400094, India
| | - Nabanita Sadhukhan
- Department of Speciality Chemicals Technology, Institute of Chemical Technology, Matunga (E), Mumbai, Maharashtra, 400019, India
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6
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Zeng Y, Liao X, Guo Y, Liu F, Bu F, Zhan J, Zhang J, Cai Y, Shen M. Baicalin-peptide supramolecular self-assembled nanofibers effectively inhibit ferroptosis and attenuate doxorubicin-induced cardiotoxicity. J Control Release 2024; 366:838-848. [PMID: 38145663 DOI: 10.1016/j.jconrel.2023.12.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 12/05/2023] [Accepted: 12/20/2023] [Indexed: 12/27/2023]
Abstract
Doxorubicin, an anthracycline chemotherapeutic agent, elicits a deleterious cardiotoxicity known as doxorubicin-induced cardiomyopathy (DIC) that circumscribes its chemotherapy utility for malignancies. Recent empirical evidence implicates ferroptosis, an iron-dependent form of regulated cell death, as playing a pivotal role in the pathogenesis of DIC. We postulated that anti-ferroptosis agents may constitute a novel therapeutic strategy for mitigating DIC. To test this hypothesis, we engineered baicalin-peptide supramolecular self-assembled nanofibers designed to selectively target the angiotensin II type I receptor (AT1R), which is upregulated in doxorubicin-damaged cardiomyocytes. This enabled targeted delivery of baicalin, a natural antioxidant compound, to inhibit ferroptosis in the afflicted myocardium. In vitro, the nanofibers ameliorated cardiomyocyte death by attenuating peroxide accumulation and suppressing ferroptosis. In a murine model of DIC, AT1R-targeted baicalin delivery resulted in efficacious cardiac accumulation and superior therapeutic effects compared to systemic administration. This investigation delineates a promising framework for developing targeted therapies that alleviate doxorubicin-induced cardiotoxicity by inhibiting the ferroptosis pathway in cardiomyocytes.
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Affiliation(s)
- Yinghua Zeng
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Department of Cardiology and Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Xu Liao
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Department of Cardiology and Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Yuting Guo
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China; Department of Cardiology, Hainan Hospital of Chinese PLA General Hosptial, Hainan Geriatric Disease Clinical Medical Research Center, Hainan Branch of China Geriatric Disease Clinical Research Center, Sanya, China
| | - Fengjiao Liu
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Department of Cardiology and Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Fan Bu
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China; Department of Cardiology, Hainan Hospital of Chinese PLA General Hosptial, Hainan Geriatric Disease Clinical Medical Research Center, Hainan Branch of China Geriatric Disease Clinical Research Center, Sanya, China
| | - Jie Zhan
- Department of Laboratory Medicine, Guangdong Engineering and Technology Research Center for Rapid Diagnostic Biosensors, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jianwu Zhang
- Guangdong Provincial Key Laboratory of Shock and Microcirculation, Southern Medical University, Guangzhou, China; Department of Cardiology, Nanfang Hospital, Southern Medical University, Guangzhou, China.
| | - Yanbin Cai
- Guangdong Provincial Biomedical Engineering Technology Research Center for Cardiovascular Disease, Department of Cardiology and Laboratory of Heart Center, Zhujiang Hospital, Southern Medical University, Guangzhou, China; Department of Cardiovascular Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China; Guangdong Provincial Key Laboratory of Shock and Microcirculation, Southern Medical University, Guangzhou, China.
| | - Mingzhi Shen
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China; Department of General Practice, Hainan Hospital of Chinese PLA General Hosptial, Sanya, China.
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Yuan M, Chen T, Jin L, Zhang P, Xie L, Zhou S, Fan L, Wang L, Zhang C, Tang N, Guo L, Xie C, Duo Y, Li L, Shi L. A carrier-free supramolecular nano-twin-drug for overcoming irinotecan-resistance and enhancing efficacy against colorectal cancer. J Nanobiotechnology 2023; 21:393. [PMID: 37898773 PMCID: PMC10612220 DOI: 10.1186/s12951-023-02157-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 10/11/2023] [Indexed: 10/30/2023] Open
Abstract
Irinotecan (Ir) is commonly employed as a first-line chemotherapeutic treatment for colorectal cancer (CRC). However, tremendous impediments remain to be addressed to surmount drug resistance and ameliorate adverse events. Poly-ADP-Ribose Polymerase (PARP) participates in the maintenance of genome stability and the repair of DNA damage, thus playing a critical role in chemotherapy resistance. In this work, we introduce a novel curative strategy that utilizes nanoparticles (NPs) prepared by dynamic supramolecular co-assembly of Ir and a PARP inhibitor (PARPi) niraparib (Nir) through π-π stacking and hydrogen bond interactions. The Ir and Nir self-assembled Nano-Twin-Drug of (Nir-Ir NPs) could enhance the therapeutic effect on CRC by synergistically inhibiting the DNA damage repair pathway and activating the tumor cell apoptosis process without obvious toxicity. In addition, the Nir-Ir NPs could effectively reverse irinotecan-resistance by inhibiting the expression of multiple resistance protein-1 (MRP-1). Overall, our study underscores the distinctive advantages and potential of Nir-Ir NPs as a complementary strategy to chemotherapy by simultaneously overcoming the Ir resistance and improving the anti-tumor efficacy against CRC.
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Affiliation(s)
- Miaomiao Yuan
- Precision Research Center for Refractory Diseases in Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
- Department of pharmacology, the Eighth Affiliated Hospital, Joint Laboratory of Guangdong-Hong Kong, Sun Yat-sen University, Universities for Nutritional Metabolism and Precise Prevention and Control of Major Chronic Diseases, Shenzhen, China
| | - Tong Chen
- Department of pharmacology, the Eighth Affiliated Hospital, Joint Laboratory of Guangdong-Hong Kong, Sun Yat-sen University, Universities for Nutritional Metabolism and Precise Prevention and Control of Major Chronic Diseases, Shenzhen, China
| | - Lu Jin
- School of Pharmaceutical Sciences, Sun Yat-sen University, 510006, Guangzhou, China
| | - Peng Zhang
- Department of Pharmacy, The Third Affiliated Hospital (The Affiliated Luohu Hospital) of Shenzhen University, 47 Youyi Road, Shenzhen, 518001, China.
| | - Luoyijun Xie
- Department of pharmacology, the Eighth Affiliated Hospital, Joint Laboratory of Guangdong-Hong Kong, Sun Yat-sen University, Universities for Nutritional Metabolism and Precise Prevention and Control of Major Chronic Diseases, Shenzhen, China
| | - Shuyi Zhou
- Precision Research Center for Refractory Diseases in Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Lianfeng Fan
- Department of pharmacology, the Eighth Affiliated Hospital, Joint Laboratory of Guangdong-Hong Kong, Sun Yat-sen University, Universities for Nutritional Metabolism and Precise Prevention and Control of Major Chronic Diseases, Shenzhen, China
| | - Li Wang
- Precision Research Center for Refractory Diseases in Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Cai Zhang
- Department of pharmacology, the Eighth Affiliated Hospital, Joint Laboratory of Guangdong-Hong Kong, Sun Yat-sen University, Universities for Nutritional Metabolism and Precise Prevention and Control of Major Chronic Diseases, Shenzhen, China
| | - Ning Tang
- Precision Research Center for Refractory Diseases in Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - LiHao Guo
- Precision Research Center for Refractory Diseases in Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Chengmei Xie
- Precision Research Center for Refractory Diseases in Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China
| | - Yanhong Duo
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institutet, Stockholm, Sweden
| | - Ling Li
- Department of pharmacology, the Eighth Affiliated Hospital, Joint Laboratory of Guangdong-Hong Kong, Sun Yat-sen University, Universities for Nutritional Metabolism and Precise Prevention and Control of Major Chronic Diseases, Shenzhen, China.
| | - Leilei Shi
- Precision Research Center for Refractory Diseases in Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200025, China.
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Hafeez S, Decarli MC, Aldana A, Ebrahimi M, Ruiter FAA, Duimel H, van Blitterswijk C, Pitet LM, Moroni L, Baker MB. In Situ Covalent Reinforcement of a Benzene-1,3,5-Tricarboxamide Supramolecular Polymer Enables Biomimetic, Tough, and Fibrous Hydrogels and Bioinks. Adv Mater 2023; 35:e2301242. [PMID: 37370137 DOI: 10.1002/adma.202301242] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 04/25/2023] [Accepted: 05/16/2023] [Indexed: 06/29/2023]
Abstract
Synthetic hydrogels often lack the load-bearing capacity and mechanical properties of native biopolymers found in tissue, such as cartilage. In natural tissues, toughness is often imparted via the combination of fibrous noncovalent self-assembly with key covalent bond formation. This controlled combination of supramolecular and covalent interactions remains difficult to engineer, yet can provide a clear strategy for advanced biomaterials. Here, a synthetic supramolecular/covalent strategy is investigated for creating a tough hydrogel that embodies the hierarchical fibrous architecture of the extracellular matrix (ECM). A benzene-1,3,5-tricarboxamide (BTA) hydrogelator is developed with synthetically addressable norbornene handles that self-assembles to form a and viscoelastic hydrogel. Inspired by collagen's covalent cross-linking of fibrils, the mechanical properties are reinforced by covalent intra- and interfiber cross-links. At over 90% water, the hydrogels withstand up to 550% tensile strain, 90% compressive strain, and dissipated energy with recoverable hysteresis. The hydrogels are shear-thinning, can be 3D bioprinted with good shape fidelity, and can be toughened via covalent cross-linking. These materials enable the bioprinting of human mesenchymal stromal cell (hMSC) spheroids and subsequent differentiation into chondrogenic tissue. Collectively, these findings highlight the power of covalent reinforcement of supramolecular fibers, offering a strategy for the bottom-up design of dynamic, yet tough, hydrogels and bioinks.
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Affiliation(s)
- Shahzad Hafeez
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, P.O. Box 616, Maastricht, 6200 MD, The Netherlands
| | - Monize Caiado Decarli
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, P.O. Box 616, Maastricht, 6200 MD, The Netherlands
| | - Agustina Aldana
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, P.O. Box 616, Maastricht, 6200 MD, The Netherlands
| | - Mahsa Ebrahimi
- Advanced Functional Polymers Group, Department of Chemistry, Institute for Materials Research (IMO), Hasselt University, Martelarenlaan 42, Hasselt, 3500, Belgium
| | - Floor A A Ruiter
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, P.O. Box 616, Maastricht, 6200 MD, The Netherlands
- Department of Cell Biology-Inspired Tissue Engineering, MERLN Institute for Technology- Inspired Regenerative Medicine, Maastricht University, P.O. Box 616, Maastricht, 6200 MD, The Netherlands
| | - Hans Duimel
- Maastricht MultiModal Molecular Imaging Institute, P.O. Box 616, Maastricht, 6200 MD, The Netherlands
| | - Clemens van Blitterswijk
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, P.O. Box 616, Maastricht, 6200 MD, The Netherlands
| | - Louis M Pitet
- Advanced Functional Polymers Group, Department of Chemistry, Institute for Materials Research (IMO), Hasselt University, Martelarenlaan 42, Hasselt, 3500, Belgium
| | - Lorenzo Moroni
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, P.O. Box 616, Maastricht, 6200 MD, The Netherlands
| | - Matthew B Baker
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, P.O. Box 616, Maastricht, 6200 MD, The Netherlands
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9
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Zhao Y, Zheng W, Liao M, Zhou S, He W, Liu M, Yao Z. Fluorescent detection of tartrazine based on the supramolecular self-assembly of cationic perylene diimide. Mikrochim Acta 2023; 190:290. [PMID: 37442817 DOI: 10.1007/s00604-023-05862-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 06/03/2023] [Indexed: 07/15/2023]
Abstract
A cationic perylene probe was designed and synthesized for sensitive determination of tartrazine. In the presence of tartrazine, the fluorescence of the perylene probe was quenched by efficient supramolecular self-assembly of the perylene derivate. The quenching is caused by the synergistic effect of noncovalent interactions including static electricity, π-π stacking, and hydrophobic interaction. Benefiting from these advantages, the probe exhibited excellent sensing performance to tartrazine within 2 min. The detection and quantification limit of tartrazine are as low as 2.42 and 8.07 nmol L-1, respectively, with a wide linear operation range from 15 to 500 nmol L-1. Most importantly, due to the high binding affinity (3.22 × 107 mol L-1) between the perylene probe and tartrazine, the sensing system shows great anti-interference capacity. Subsequently, the visualization application of the approach was evaluated by portable device, and the limits of detection for visual detection for test strip, membrane, and hydrogel were 0.5, 0.5, and 5 μmol L-1, respectively. The approach has been applied to monitor tartrazine in various food condiments with recoveries in the range 91.29-108.83%. As far as we know, this is the first report of using perylene-based probe for tartrazine determination, offering a promising strategy for the construction of perylene-based detection system in the field of food safety.
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Affiliation(s)
- Yijian Zhao
- Beijing Laboratory of Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Weilian Zheng
- Beijing Laboratory of Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Mengyu Liao
- Beijing Laboratory of Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Shuai Zhou
- Beijing Laboratory of Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Weiheng He
- Beijing Laboratory of Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China
| | - Ming Liu
- Technical Center for Safety of Industrial Products of Tianjin Customs District, Tianjin Key Laboratory of Port Non-Traditional Security (NTS) Risk Prevention and Control Science and Technology, Laboratory of Emergency Inspection and Testing for Toxicological Safety Assessment of Import and Export Food Safety of General Administration of Customs, Tianjin, China
| | - Zhiyi Yao
- Beijing Laboratory of Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, China.
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Wang J, Zheng X, Fu X, Jiang A, Yao Y, He W. A de novo dual-targeting supramolecular self-assembly peptide against pulmonary metastasis of melanoma. Theranostics 2023; 13:3844-3855. [PMID: 37441586 PMCID: PMC10334834 DOI: 10.7150/thno.83819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 06/18/2023] [Indexed: 07/15/2023] Open
Abstract
Despite recent advances in treatment, overall survival rates for metastatic melanoma, especially those that invade the lungs, continue to be low, with 5-year survival rates of only 3% to 5%. It was recently discovered that Wnt/β-catenin signaling pathways and MAPK/ERK signaling pathways are involved in melanoma metastasis. Methods: Herein, a bifunctional supramolecular peptide termed HBBplus@CA was constructed by a self-assembling RGD-modified MAPK/ERK peptide inhibitor (HBBplus) and a small molecule catenin inhibitor (carnosic acid (CA)). Results: Expectedly, the HBBplus@CA could internalize melanoma cells, accumulate in the tumor-bearing lung, and be biosafe. As designed, HBBplus@CA simultaneously suppressed both Wnt/β-catenin and MAPK/ERK signaling pathways and suppressed melanoma cell proliferation, migration, and invasion in more action than CA or HBBplus monotherapy. More importantly, HBBplus@CA demonstrated potent inhibition of lung metastasis in mice bearing metastatic melanoma of B16F10 and significantly prolonged their survival. Conclusion: In summary, a supramolecular peptide-based strategy was not only developed to suppress pulmonary metastasis of melanoma, but it also renewed efforts to identify cocktail drugs that act on intracellular targets in various human diseases, including cancer.
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Affiliation(s)
- Jingjing Wang
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Xiaoqiang Zheng
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
- Institute for Stem Cell & Regenerative Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - Xiao Fu
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Aimin Jiang
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Yu Yao
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Wangxiao He
- Department of Medical Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
- Institute for Stem Cell & Regenerative Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
- Department of Talent Highland, The First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an 710061, China
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Cao X, Guo W, Zhu Q, Ge H, Yang H, Ke Y, Shi X, Lu X, Feng Y, Yin H. Supramolecular self-assembly of robust, ultra-stable, and high-temperature-resistant viscoelastic worm-like micelles. J Colloid Interface Sci 2023; 649:403-415. [PMID: 37354797 DOI: 10.1016/j.jcis.2023.06.086] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/09/2023] [Accepted: 06/14/2023] [Indexed: 06/26/2023]
Abstract
HYPOTHESIS Worm-like micelles are susceptible to heating owing to the fast dynamic exchange of molecules between micelles. Inhibition of such exchange could afford robust worm-like micelles, which is expected to largely improve rheology properties at high temperatures. EXPERIMENTS A cationic surfactant docosyl(trimethyl)azanium chloride (DCTAC) and a strongly hydrophobic organic counterion 3-hydroxy naphthalene-2-carboxylate (SHNC) were used for the worm-like micelles fabrication. The microstructure was characterized using cryogenic transmission electron microscopy and small-angle neutron scattering, and the interactions between DCTAC and SHNC were characterized using nuclear magnetic resonance spectroscopy. Rheometer was employed to measure the rheological properties of the solution. FINDINGS SHNC/DCTAC at the molar ration of 1:2 forms ultra-stable worm-like micelles, whose viscosity remain stable at temperature up to 130 °C. SHNC is found to strongly adsorbs on DCTAC micelle with the orientation on the surface of micelle, keeping the naphthalene backbone entire penetration into the palisade layer while both carboxylic and hydroxyl groups protrude out of the micelle. With temperature increasing, this adsorption further strengthens, resulting in the growth contour length and accompanying the enhancement of rheological properties. One SHNC molecule and two DCTAC molecules are speculated to form a stable complex via multiple interactions including hydrophobic, cationic-π, and π-π interactions, which decreases the dynamic exchange of them between micelles. These findings are helpful to understand surfactant aggregates stability and assist the development of novel stable supramolecular nanostructures. Additionally, the excellent thermal stability of this worm-like micellar fluid makes it a potential high-temperature resistant clean fracturing fluid for deep oil reservoirs.
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Affiliation(s)
- Xiaoqin Cao
- Polymer Research Institute, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, PR China
| | - Weiluo Guo
- Polymer Research Institute, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, PR China
| | - Qi Zhu
- CNPC Bohai Drilling Engineering Co., Ltd, Tianjin 300450, PR China
| | - Hongjiang Ge
- Oil Production Technology Institute, Dagang Oil Field Company PetroChina, Tianjin 300280, PR China
| | - Hua Yang
- Spallation Neutron Source Science Center, Dongguan 523803, PR China; Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, PR China
| | - Yubin Ke
- Spallation Neutron Source Science Center, Dongguan 523803, PR China; Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, PR China
| | - Xiaohuo Shi
- Instrumentation and Service Center for Molecular Sciences, Westlake University, Hangzhou 310024, PR China
| | - Xingyu Lu
- Instrumentation and Service Center for Molecular Sciences, Westlake University, Hangzhou 310024, PR China
| | - Yujun Feng
- Polymer Research Institute, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, PR China
| | - Hongyao Yin
- Polymer Research Institute, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, PR China.
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12
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Yang W, Liu W, Li X, Yan J, He W. Turning chiral peptides into a racemic supraparticle to induce the self-degradation of MDM2. J Adv Res 2023; 45:59-71. [PMID: 35667548 PMCID: PMC10006529 DOI: 10.1016/j.jare.2022.05.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 05/04/2022] [Accepted: 05/24/2022] [Indexed: 02/07/2023] Open
Abstract
INTRODUCTION Chirality is immanent in nature, and chiral molecules can achieve their pharmacological action through chiral matching with biomolecules and molecular conformation recognition. OBJECTIVES Clinical translation of chiral therapeutics, particularly chiral peptide molecules, has been hampered by their unsatisfactory pharmaceutical properties. METHODS A mild and simple self-assembly strategy was developed here for the construction of peptide-derived chiral supramolecular nanomedicine with suitable pharmaceutical properties. In this proof-of-concept study, we design a D-peptide as MDM2 Self-Degradation catalysts (MSDc) to induce the self-degradation of a carcinogenic E3 Ubiquitin ligase termed MDM2. Exploiting a metal coordination between mercaptan in peptides and trivalent gold ion, chiral MSDc was self-assembled into a racemic supraparticle (MSDNc) that eliminated the consume from the T-lymphocyte/macrophage phagocytose in circulation. RESULTS Expectedly, MSDNc down-regulated MDM2 in more action than its L-enantiomer termed CtrlMSDNc. More importantly, MSDNc preponderantly suppressed the tumor progression and synergized the tumor immunotherapy in allograft model of melanoma through p53 restoration in comparison to CtrlMSDNc. CONCLUSION Collectively, this work not only developed a secure and efficient therapeutic agent targeting MDM2 with the potential of clinical translation, but also provided a feasible and biocompatible strategy for the construction of peptide supraparticle and expanded the application of chiral therapeutic and homo-PROTAC to peptide-derived chiral supramolecular nanomedicine.
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Affiliation(s)
- Wenguang Yang
- Department of Medical Oncology and Department of Talent Highland, The First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an 710061, China
| | - Wenjia Liu
- National & Local Joint Engineering Research Center of Biodiagnosis and Biotherapy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China.
| | - Xiang Li
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Jin Yan
- National & Local Joint Engineering Research Center of Biodiagnosis and Biotherapy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China.
| | - Wangxiao He
- Department of Medical Oncology and Department of Talent Highland, The First Affiliated Hospital of Xi'an Jiao Tong University, Xi'an 710061, China; Institute for Stem Cell & Regenerative Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China.
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13
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Byun H, Jang GN, Hong MH, Yeo J, Shin H, Kim WJ, Shin H. Biomimetic anti-inflammatory and osteogenic nanoparticles self-assembled with mineral ions and tannic acid for tissue engineering. Nano Converg 2022; 9:47. [PMID: 36214916 PMCID: PMC9551158 DOI: 10.1186/s40580-022-00338-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 09/26/2022] [Indexed: 06/16/2023]
Abstract
Bone healing involves complex processes including inflammation, induction, and remodeling. In this context, anti-inflammatory and osteoconductive multi-functional nanoparticles have attracted considerable attention for application in improved bone tissue regeneration. In particular, nanoparticles that promote suppression of inflammatory response after injury and direction of desirable tissue regeneration events are of immense interest to researchers. We herein report a one-step method to prepare multi-functional nanoparticles using tannic acid (TA) and simulated body fluid (SBF) containing multiple mineral ions. Mineral-tannic acid nanoparticles (mTNs) were rapidly fabricated in 10 min, and their size (around 250-350 nm) and chemical composition were controlled through the TA concentration. In vitro analysis using human adipose derived stem cells (hADSCs) showed that mTNs effectively scavenged reactive oxygen species (ROS) and enhanced osteogenesis of hADSCs by inducing secretion of alkaline phosphatase. mTNs also increased osteogenic marker gene expression even in the presence of ROS, which can generally arrest osteogenesis (OPN: 1.74, RUNX2: 1.90, OCN: 1.47-fold changes relative to cells not treated with mTNs). In vivo analysis using a mouse peritonitis model revealed that mTNs showed anti-inflammatory effects by decreasing levels of pro-inflammatory cytokines in blood (IL-6: 73 ± 4, TNF-α: 42 ± 2%) and peritoneal fluid (IL-6: 78 ± 2, TNF-α: 21 ± 6%). We believe that this one-step method for fabrication of multi-functional nanoparticles has considerable potential in tissue engineering approaches that require control of complex microenvironments, as required for tissue regeneration.
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Affiliation(s)
- Hayeon Byun
- Department of Bioengineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
- BK21 FOUR Education and Research Group for Biopharmaceutical Innovation Leader, Department of Bioengineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Gyu Nam Jang
- Department of Bioengineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
- BK21 FOUR Education and Research Group for Biopharmaceutical Innovation Leader, Department of Bioengineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Min-Ho Hong
- Department of Dental Biomaterials and Research Institute of Oral Science, College of Dentistry, Gangneung-Wonju National University, Gangneung, 25457, Republic of Korea
| | - Jiwon Yeo
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Hyunjung Shin
- Nature Inspired Materials Processing Research Center, Department of Energy Science, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Won Jong Kim
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Heungsoo Shin
- Department of Bioengineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea.
- BK21 FOUR Education and Research Group for Biopharmaceutical Innovation Leader, Department of Bioengineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea.
- Institute of Nano Science and Technology, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea.
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14
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Xing C, Chen H, Guan Y, Zhang S, Tong T, Ding N, Luo T, Kang Y, Pang J. Cyclodextrin-based supramolecular nanoparticles break the redox balance in chemodynamic therapy-enhanced chemotherapy. J Colloid Interface Sci 2022; 628:864-876. [PMID: 36029600 DOI: 10.1016/j.jcis.2022.08.110] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 08/15/2022] [Accepted: 08/16/2022] [Indexed: 11/30/2022]
Abstract
Drug delivery based on abnormal features of the tumor microenvironment (TME) has attracted considerable interest worldwide. In this study, we proposed an applicable strategy to increase the reactive oxygen species (ROS) and inhibit glutathione (GSH), in an effort to amplify oxidative damage in prostate cancer cells. Specifically, we developed dual-responsive supramolecular self-assembled nanoparticles (NPs) based on polymerized methacrylic acid (MA) and polymerized poly(ethylene glycol) dimethyl acrylate-modified β-cyclodextrin (CD) with ferrocene (Fc)-connected (S) (+)-camptothecin (CPT) (designated as MA-CD/Fc-CPT NPs). The as-prepared negatively charged supramolecular NPs can be taken up by tumor cells successfully owing to their reversible negative-to-positive charge transition capacity at acidic pH. The supramolecular NPs increased ROS generation and decreased GSH to amplify oxidative stress and improve the therapeutic effect of chemotherapy. As expected, MA-CD/Fc-CPT NPs displayed good drug delivery capabilities to tumor cells or tissues. MA-CD/Fc-CPT NPs also inhibited cancer cell proliferation in both the cells and tissues. This result was partially due to increased ROS generation and decreased GSH, which contributed to more pronounced oxidative stress. The as-prepared supramolecular NPs displayed great biosafety to normal tissues. According to our results, negatively charged supramolecular MA-CD/Fc-CPT NPs are well-suited for drug delivery and improved cancer treatment in TMEs.
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Affiliation(s)
- Chengyuan Xing
- Department of Urology, Kidney and Urology Center, the Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China; Scientific Research Center, the Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China
| | - Huikun Chen
- Department of Urology, Kidney and Urology Center, the Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China; Scientific Research Center, the Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China
| | - Yupeng Guan
- Department of Urology, Kidney and Urology Center, the Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China; Scientific Research Center, the Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China
| | - Shiqiang Zhang
- Department of Urology, Kidney and Urology Center, the Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China
| | - Tongyu Tong
- Department of Urology, Kidney and Urology Center, the Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China; Scientific Research Center, the Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China
| | - Ni Ding
- Scientific Research Center, the Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China
| | - Tingting Luo
- Scientific Research Center, the Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China
| | - Yang Kang
- Department of Urology, Kidney and Urology Center, the Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China; Scientific Research Center, the Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China.
| | - Jun Pang
- Department of Urology, Kidney and Urology Center, the Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China.
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Liao X, Song X, Li J, Li L, Fan X, Qin Q, Zhong C, Yang P, Zhan J, Cai Y. An injectable co-assembled hydrogel blocks reactive oxygen species and inflammation cycle resisting myocardial ischemia-reperfusion injury. Acta Biomater 2022:S1742-7061(22)00378-6. [PMID: 35777549 DOI: 10.1016/j.actbio.2022.06.039] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 06/02/2022] [Accepted: 06/22/2022] [Indexed: 12/23/2022]
Abstract
The overproduction of reactive oxygen species (ROS) and burst of inflammation following cardiac ischemia-reperfusion (I/R) are the leading causes of cardiomyocyte injury. Monotherapeutic strategies designed to enhance anti-inflammatory or anti-ROS activity explicitly for treating I/R injury have demonstrated limited success because of the complex mechanisms of ROS production and induction of inflammation. Intense oxidative stress leads to sustained injury, necrosis, and apoptosis of cardiomyocytes. The damaged and necrotic cells can release danger-associated molecular patterns (DAMPs) that can cause the aggregation of immune cells by activating Toll-like receptor 4 (TLR4). These immune cells also promote ROS production by expressing NADPH oxidase. Finally, ROS production and inflammation form a vicious cycle, and ROS and TLR4 are critical nodes of this cycle. In the present study, we designed and prepared an injectable hydrogel system of EGCG@Rh-gel by co-assembling epigallocatechin-3-gallate (EGCG) and the rhein-peptide hydrogel (Rh-gel). The co-assembled hydrogel efficiently blocked the ROS-inflammation cycle by ROS scavenging and TLR4 inhibition. Benefited by the abundant noncovalent interactions of π-π stacking and hydrogen bonding between EGCG and Rh-gel, the co-assembled hydrogel had good mechanical strength and injectable property. Following the injection EGCG@Rh-gel into the damaged region of the mice's heart after I/R, the hydrogel enabled to achieve long-term sustained release and treatment, improve cardiac function, and significantly reduce the formation of scarring. Further studies demonstrated that these beneficial outcomes arise from the reduction of ROS production, inhibition of inflammation, and induction of anti-apoptosis in cardiomyocytes. Therefore, EGCG@Rh-gel is a promising drug delivery system to block the ROS-inflammation cycle for resisting myocardial I/R injury. STATEMENT OF SIGNIFICANCE: 1. Monotherapeutic strategies designed to enhance anti-inflammatory or anti-ROS effects for treating I/R injury have demonstrated limited success because of the complex mechanisms of ROS and inflammation. 2. ROS production and inflammation form a vicious cycle, and ROS and TLR4 are critical nodes of this cycle. 3. Here, we designed an injectable hydrogel system of EGCG@Rh-gel by co-assembling epigallocatechin-3-gallate (EGCG) and a rhein-peptide hydrogel (Rh-gel). EGCG@Rh-gel efficiently blocked the ROS-inflammation cycle by ROS scavenging and TLR4 inhibition. 4. EGCG@Rh-gel achieved long-term sustained release and treatment, improved cardiac function, and significantly reduced the formation of scarring after I/R. 5. The beneficial outcomes arise from reducing ROS production, inhibiting inflammation, and inducing anti-apoptosis in cardiomyocytes.
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16
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Bai Y, Liu C, Yang J, Liu C, Shang Q, Tian W. Supramolecular self-assemblies based on water-soluble pillar[6]arene and drug-drug conjugates for the combination of chemotherapy. Colloids Surf B Biointerfaces 2022; 217:112606. [PMID: 35660745 DOI: 10.1016/j.colsurfb.2022.112606] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/20/2022] [Accepted: 05/25/2022] [Indexed: 12/12/2022]
Abstract
Although some co-drug delivery systems have been reported to treat cancer, how to optimal design these nano-systems with enhanced therapeutic efficacy is still a major challenge. As for the nitrogen mustard drugs chlorambucil (Cb), the overexpressed glutathione (GSH) in cancer tissue is responsible for their detoxification and reduced bioavailability. In this paper, chlorambucil-oxoplatin (Cb-Pt) was prepared to fabricate water-soluble pillar[6]arene (WP[6]) based supramolecular drug-drug self-assemblies (SDSAs). Remarkably, after the transcytosis by cancer cells, SDSAs was reduced by GSH to re lease Cb and higher toxic cisplatin, accompanying with the declining GSH level and ascending ROS level. Moreover, in vitro and in vivo experiments demonstrated that SDSAs with oxidative stress amplification strategy exhibited excellent therapeutic effect. This strategy might be useful for the synergistic co-drug based chemotherapy field.
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Affiliation(s)
- Yang Bai
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China.
| | - Caiping Liu
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Jing Yang
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Chengfei Liu
- Shaanxi Key Laboratory of Polymer Science & Technology, OME Key Laboratory of Supernormal Material Physics & Chemistry, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, China.
| | - Qingqing Shang
- Shaanxi Key Laboratory of Chemical Additives for Industry, College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Wei Tian
- Shaanxi Key Laboratory of Polymer Science & Technology, OME Key Laboratory of Supernormal Material Physics & Chemistry, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, China.
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17
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Bao J, Bai W, Wu M, Gong W, Yu Y, Zheng K, Liu L. Template-mediated copper doped porous g-C 3N 4 for efficient photodegradation of antibiotic contaminants. Chemosphere 2022; 293:133607. [PMID: 35032511 DOI: 10.1016/j.chemosphere.2022.133607] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 12/30/2021] [Accepted: 01/11/2022] [Indexed: 06/14/2023]
Abstract
Graphite carbon nitride (g-C3N4) has great potential to treat antibiotic wastewater, but limited by small specific surface area, rapid recombination of photogenerated carriers and narrow visible light absorption range. In order to solve above problems, we designed a simple template-mediated approach by supramolecular self-assembly (Cu-melamine-cyanuric acid) to prepare copper doped porous graphitic carbon nitride (Cu-pCN) photocatalyst. The pre-organized template self-assembly driven by hydrogen bonds and electrostatic interaction, resulted in highly porous structure. The specific surface area of Cu-pCN increased to 142.8 m2/g from 11.37 m2/g of conventional bulk g-C3N4. In addition, the doping of Cu endowed them with better light absorption, higher separation and transfer rate of photogenerated carriers. Consequently, the obtained Cu-pCN displayed the superior photocatalytic degradation rate for tetracycline (TC) and high recycling stability.
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Affiliation(s)
- Jie Bao
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Park, Hangzhou, 310018, China
| | - Wending Bai
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Park, Hangzhou, 310018, China
| | - Mingbang Wu
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Park, Hangzhou, 310018, China
| | - Wenli Gong
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Park, Hangzhou, 310018, China
| | - Yucong Yu
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Park, Hangzhou, 310018, China
| | - Kang Zheng
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Park, Hangzhou, 310018, China
| | - Lin Liu
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, 928 Second Avenue, Xiasha Higher Education Park, Hangzhou, 310018, China.
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18
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Wu T, He Q, Liu Z, Shao B, Liang Q, Pan Y, Huang J, Peng Z, Liu Y, Zhao C, Yuan X, Tang L, Gong S. Tube wall delamination engineering induces photogenerated carrier separation to achieve photocatalytic performance improvement of tubular g-C 3N 4. J Hazard Mater 2022; 424:127177. [PMID: 34583163 DOI: 10.1016/j.jhazmat.2021.127177] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 08/19/2021] [Accepted: 09/06/2021] [Indexed: 05/24/2023]
Abstract
Morphology adjustment is a feasible method to change the physicochemical properties of photocatalysts. The issue that excessively thick tube wall of tubular g-C3N4 is not conducive to the electron migration from inside to the surface thus inhibiting the separation of photogenerated carriers has always been ignored. Potassium ions were used to regulate the structure of the tubular supramolecular precursor by breaking hydrogen bonds, thereby promoting the synthesis of delaminated laminar tubular g-C3N4 (K-CN), which not only shortened the transfer distance of photogenerated electrons but also provided abundant reaction active sites. Experiments and DFT calculations were combined to reveal the details of the physicochemical properties of K-CN. The photocatalytic capacity of K-CN for tetracycline hydrochloride (TCH) degradation and H2O2 generation were 83% and 133 μM, respectively. This work not only synthesized a novel delaminated tubular g-C3N4 but also provided a strategy and inspiration for structure and performance optimization for tubular g-C3N4.
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Affiliation(s)
- Ting Wu
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Ministry of Education, Changsha 410082, PR China
| | - Qingyun He
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Ministry of Education, Changsha 410082, PR China
| | - Zhifeng Liu
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Ministry of Education, Changsha 410082, PR China.
| | - Binbin Shao
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Ministry of Education, Changsha 410082, PR China
| | - Qinghua Liang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Ministry of Education, Changsha 410082, PR China
| | - Yuan Pan
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Ministry of Education, Changsha 410082, PR China
| | - Jing Huang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Ministry of Education, Changsha 410082, PR China
| | - Zan Peng
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Ministry of Education, Changsha 410082, PR China
| | - Yang Liu
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Ministry of Education, Changsha 410082, PR China
| | - Chenhui Zhao
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Ministry of Education, Changsha 410082, PR China
| | - Xingzhong Yuan
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Ministry of Education, Changsha 410082, PR China
| | - Lin Tang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Ministry of Education, Changsha 410082, PR China
| | - Shanxi Gong
- School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, PR China
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Zhou L, Justin Koh J, Hou X, Kong J, Liu S, Fan X, Qiao Z, Lu X, Li Z, He C. The crystallization of decanoic acid/dopamine supramolecular self-assemblies in the presence of coacervates. J Colloid Interface Sci 2022; 615:759-67. [PMID: 35176542 DOI: 10.1016/j.jcis.2022.02.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/03/2022] [Accepted: 02/04/2022] [Indexed: 11/20/2022]
Abstract
HYPOTHESIS Supramolecular self-assemblies involving non-covalent interactions play important roles in material science as well as living systems as they result in unique properties and/or functions. However, understanding of their self-assembly mechanism and crystallization has remained rudimentary. EXPERIMENT Here, we focus on biomolecular fatty acid and dopamine, which commonly exist in biological systems and closely related to neurodegenerative diseases, and investigate their self-assembly pathway by optical and fluorescence microscopy, DLS, SAXS, TEM, 2D-NMR, etc. FINDINGS: It is found that they could form the crystalline plates in solution or via a metastable liquid - liquid phase separation (LLPS). The nucleation and growth of crystalline plates observed occurs in solution or the dilute phase of LLPS, and not within the concentrated coacervate phase. This is because in coacervate, dopamine intercalates into fatty acid through hydrophobic and electrostatic interaction, which hinders the rearrangement of molecules and nucleation process, whereas in solution or dilute phase, they have the mobility to arrange into ordered structures to maximize electrostatic, hydrogen bonding and π-π interactions, leading to nucleation and crystallization. Moreover, the transitions between the coacervates and crystalline phase can be realized by adjusting the temperature. Our results shed light on the multistep nucleation in the presence of LLPS, as well as molecular mechanisms involved, thus further extending the nucleation-growth mechanisms.
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20
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Hiew SH, Wang JK, Koh K, Yang H, Bacha A, Lin J, Yip YS, Vos MIG, Chen L, Sobota RM, Tan NS, Tay CY, Miserez A. Bioinspired short peptide hydrogel for versatile encapsulation and controlled release of growth factor therapeutics. Acta Biomater 2021; 136:111-123. [PMID: 34551327 DOI: 10.1016/j.actbio.2021.09.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 09/14/2021] [Accepted: 09/14/2021] [Indexed: 12/17/2022]
Abstract
A short bioinspired octapeptide, GV8, can self-assemble under mild conditions into biodegradable supramolecular physical hydrogels with high storage modulus and good biocompatibility. GV8 hydrogels can encapsulate both single or multiple macromolecular protein-based therapeutics in a simple one-pot formulation manner, making it a promising candidate to address challenges faced by existing synthetic polymer or peptide hydrogels with complex gelation and drug-encapsulation processes. Alongside its versatility, the hydrogel exhibits concentration-dependent storage modulus and controlled drug-release action. We demonstrate that GV8 hydrogels loaded with adipose-derived mesenchymal stem cells (ADMSC) secretome remain mechanically robust, and exhibit promising potential for wound healing applications by preserving secretome activity while maintaining a constant supply of ADMSC secretome to promote epithelial cell migration. Overall, our work highlights the potential of GV8 peptide hydrogel as a versatile and safe carrier for encapsulation and delivery of macromolecular therapeutics. STATEMENT OF SIGNIFICANCE: Supramolecular peptide hydrogels are a popular choice for protein-based macromolecular therapeutics delivery; however, despite the development of abundant hydrogel systems, several challenges limit their adaptability and practical applications. GV8 short peptide hydrogel circumvents these drawbacks and demonstrates the ability to function as a versatile growth factor (GF) encapsulant. It can encapsulate precise concentrations of complex adipose-derived mesenchymal stem cells secretome mixtures with a one-pot formulation approach and perform controlled release of GFs with preserved activity without compromising the self-assembly and mechanical properties of the hydrogel's supramolecular network. The significance of GV8 hydrogel lies in its gelation simplicity and versatility to encapsulate and deliver macromolecular therapeutics, thus representing a promising biomaterial for regenerative medicine applications.
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Affiliation(s)
- Shu Hui Hiew
- Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798.
| | - Jun Kit Wang
- Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798
| | - Kenrick Koh
- Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798; NTU Institute for Health Technologies, Interdisciplinary Graduate Programme, Nanyang Technological University, Singapore, 637335
| | - Haibo Yang
- Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798
| | - Abbas Bacha
- Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798
| | - Junquan Lin
- Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798
| | - Yun Sheng Yip
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, 308232
| | | | - Liyan Chen
- Functional Proteomics Laboratory, SingMass National Laboratory, Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A(∗)STAR), Singapore, 138673
| | - Radoslaw M Sobota
- Functional Proteomics Laboratory, SingMass National Laboratory, Institute of Molecular and Cell Biology, Agency for Science, Technology and Research (A(∗)STAR), Singapore, 138673; Bioinformatics Institute, Agency for Science, Technology and Research (A(∗)STAR), Singapore, 138671
| | - Nguan Soon Tan
- School of Biological Sciences, Nanyang Technological University, Singapore, 637551; Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, 308232
| | - Chor Yong Tay
- Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798; School of Biological Sciences, Nanyang Technological University, Singapore, 637551; Environmental Chemistry and Materials Centre, Nanyang Environment & Water Research Institute, Singapore, 637141.
| | - Ali Miserez
- Center for Sustainable Materials (SusMat), School of Materials Science and Engineering, Nanyang Technological University, Singapore, 639798; School of Biological Sciences, Nanyang Technological University, Singapore, 637551.
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21
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Criado-Gonzalez M, Wagner D, Iqbal MH, Ontani A, Carvalho A, Schmutz M, Schlenoff JB, Schaaf P, Jierry L, Boulmedais F. Supramolecular tripeptide self-assembly initiated at the surface of coacervates by polyelectrolyte exchange. J Colloid Interface Sci 2021; 588:580-588. [PMID: 33450601 DOI: 10.1016/j.jcis.2020.12.066] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 12/18/2020] [Accepted: 12/19/2020] [Indexed: 01/07/2023]
Abstract
Spatial control of supramolecular self-assembly can yield compartmentalized structures, a key feature for the design of artificial cells. Inducing self-assembly from and on compartments is still a challenge. Polyelectrolyte complex coacervates are simple model droplet systems able to reproduce the basic features of membrane-less organelles, appearing in cells. Here, we demonstrate the supramolecular self-assembly of a phosphorylated tripeptide, Fmoc-FFpY (Fmoc: fluorenyl-methoxycarbonyl; F: phenyl alanine, pY: phosphorylated tyrosine), on the surface of poly(l-glutamic acid)/poly(allylamine hydrochloride) (PGA/PAH) complex coacervate microdroplets. The phosphorylated peptides self-assemble, without dephosphorylation, through ion pairing between the phosphate groups of Fmoc-FFpY and the amine groups of PAH. This process provides spontaneous capsules formed by an amorphous polyelectrolyte complex core surrounded by a structured peptide/PAH shell. Similar fibrillar Fmoc-FFpY self-assembled structures are obtained at the interface between the peptide solution and a PGA/PAH polyelectrolyte multilayer, a complex coacervate in the thin film or "multilayer" format. In contact with the peptide solution, PAH chains diffuse out of the coacervate or multilayer film and complex with Fmoc-FFpY at the solution interface, exchanging any PGA with which they were associated. Self-assembly of Fmoc-FFpY, now concentrated by complexation with PAH, follows quickly.
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Affiliation(s)
- Miryam Criado-Gonzalez
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR 22), 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France; Institut National de la Santé et de la Recherche Médicale, INSERM Unité 1121, "Biomatériaux et Bioingénierie", 1 rue Eugène Boeckel, 67000 Strasbourg, France; Université de Strasbourg, Faculté de Chirurgie Dentaire, 7 rue Saint Elisabeth, 67000 Strasbourg, France
| | - Deborah Wagner
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR 22), 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France
| | - Muhammad Haseeb Iqbal
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR 22), 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France
| | - Aymeric Ontani
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR 22), 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France
| | - Alain Carvalho
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR 22), 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France
| | - Marc Schmutz
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR 22), 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France
| | - Joseph B Schlenoff
- Florida State University, Department of Chemistry and Biochemistry, Tallahassee, 32306 FL, United States
| | - Pierre Schaaf
- Institut National de la Santé et de la Recherche Médicale, INSERM Unité 1121, "Biomatériaux et Bioingénierie", 1 rue Eugène Boeckel, 67000 Strasbourg, France; Université de Strasbourg, Faculté de Chirurgie Dentaire, 7 rue Saint Elisabeth, 67000 Strasbourg, France.
| | - Loïc Jierry
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR 22), 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France
| | - Fouzia Boulmedais
- Université de Strasbourg, CNRS, Institut Charles Sadron (UPR 22), 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France.
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22
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Liu Y, Lv S, Liu D, Song F. Recent development of amorphous metal coordination polymers for cancer therapy. Acta Biomater 2020; 116:16-31. [PMID: 32942012 DOI: 10.1016/j.actbio.2020.09.019] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 08/15/2020] [Accepted: 09/10/2020] [Indexed: 02/07/2023]
Abstract
Nanoscale metal coordination polymers (NCPs), built from metal ions and organic ligands, have attracted tremendous interest in biomedical applications. This is mainly due to their mesoporous structure, tunable size and morphology and versatile functionality. NCPs can be further divided into nanoscale metal-organic frameworks (NMOFs) and amorphous coordination polymer particles (ACPPs) depending on their structural crystallinity. NMOFs as nanocarriers have been extensively reviewed. However, the highlights of ACPPs as theranostic nanoplatforms are still limited. In this review, the recent progress of ACPPs as theranostic nanoplatforms is summarized based on what types of organic linkers used. The ACPPs are divided into three main parts: photosensitizers-based ACPPs, chemical drugs-based ACPPs, and biomolecules-based ACPPs. Finally, the prospects and challenges of the ACPPs for enhanced biomedical applications are also discussed. STATEMENT OF SIGNIFICANCE: Over the last decades, amorphous metal coordination polymers (ACPPs), constructed by metal ions and organic linkers, have attracted enormous interest in cancer treatment owing to their high drug loading capability, facile synthetic procedures, low long-term toxicity, and mild preparation conditions. In this review, we highlight the recent progress of ACPPs for biomedical application based on different types of organic building blocks including photosensitizers, chemical drugs, and biomolecules. Moreover, the prospects and challenges of ACPPs for clinical application are also discussed. We hope this review entitled "Recent development of amorphous metal coordination polymers for cancer therapy" would arise the researchers' interest in this field to accelerate their clinical application in cancer therapy.
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Affiliation(s)
- Yuhan Liu
- Institute of Molecular Science and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, Shandong, 266237, China
| | - Shibo Lv
- Institute of Molecular Science and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, Shandong, 266237, China
| | - Dapeng Liu
- Institute of Molecular Science and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, Shandong, 266237, China.
| | - Fengling Song
- Institute of Molecular Science and Engineering, Institute of Frontier and Interdisciplinary Science, Shandong University, Qingdao, Shandong, 266237, China.
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23
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Li X, Jeon YH, Kwon N, Park JG, Guo T, Kim HR, Huang JD, Lee DS, Yoon J. In Vivo-assembled phthalocyanine/albumin supramolecular complexes combined with a hypoxia-activated prodrug for enhanced photodynamic immunotherapy of cancer. Biomaterials 2020; 266:120430. [PMID: 33011679 DOI: 10.1016/j.biomaterials.2020.120430] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 09/22/2020] [Accepted: 09/27/2020] [Indexed: 12/30/2022]
Abstract
Immunogenic photodynamic therapy (PDT) has the potential to moderate the shortfalls of cancer immunotherapy. However, its efficacy is severely limited particularly because of the lack of optimal photosensitizers and smart delivery processes and the inherent shortcomings of PDT (e.g., hypoxia resistance). Here, we demonstrate a clinically promising approach that utilizes a water-soluble phthalocyanine derivative (PcN4) concomitantly delivered with a hypoxia-activated prodrug (AQ4N) to amplify the effect of PDT and enhance cancer immunotherapy. After intravenous injection, PcN4 selectively interacted with endogenous albumin dimers and formed supramolecular complexes, providing a facile and green approach for tumor-targeted PDT. The concomitant delivery of AQ4N overcame the limitations of hypoxia in PDT and improved the antitumor activity of PDT. Treatment with PcN4-mediated and AQ4N-amplified PDT almost completely eradicated sizable primary tumors in a triple-negative breast cancer model and significantly activated CD8+ T cells. As the majority of tumor infiltrating CD8+ T cells were both PD-1- and TIM3-positive, additional combination therapy using PD-L1/PD-1 pathway blockade was warranted. After combination with immune checkpoint blockade treatment, an enhanced abscopal effect was achieved in both distant and metastatic tumors.
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Affiliation(s)
- Xingshu Li
- College of Chemistry, State Key Laboratory of Photocatalysis on Energy and Environment, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, Fuzhou University, Fuzhou, 350108, China
| | - Yun-Hui Jeon
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
| | - Nahyun Kwon
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Jun-Gyu Park
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
| | - Tian Guo
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Hang-Rae Kim
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea
| | - Jian-Dong Huang
- College of Chemistry, State Key Laboratory of Photocatalysis on Energy and Environment, Fujian Provincial Key Laboratory of Cancer Metastasis Chemoprevention and Chemotherapy, Fuzhou University, Fuzhou, 350108, China.
| | - Dong-Sup Lee
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul, 03080, Republic of Korea.
| | - Juyoung Yoon
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul, 03760, Republic of Korea.
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24
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Sun X, Xu H, Huang T, Zhang C, Wu J, Luo S. Simultaneous delivery of anti-miRNA and docetaxel with supramolecular self-assembled "chitosome" for improving chemosensitivity of triple negative breast cancer cells. Drug Deliv Transl Res 2020; 11:192-204. [PMID: 32394334 DOI: 10.1007/s13346-020-00779-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
At present, treating of triple negative breast cancer (TNBC) mainly depends on chemotherapy with more toxic side effects, but the effect is limited and it is highly prone to drug resistance. Gene therapy using anti-microRNAs maybe one of alternative therapeutic strategies. Due to the poor cell permeability and significant in vivo decomposition rate of anti-microRNAs, which limits their clinical application, we developed a core-shell supramolecular nanovector of "chitosome" that were self-assembled from the synthetic amphiphilic chitosan derivatives. The constructed chitosomes could co-load hydrophilic anti-miR-21 and hydrophobic docetaxel (DTX) into one combo nanocarrier with entrapment efficiency of more than 80%, as well as spherical morphology and average particle size of 90 nm. In comparison with the naked ones, anti-miR-21 encapsulated with chitosomes showed significantly increased cellular transfection and stability against degradation by nuclease in serum. Compared with DTX or anti-miR-21 formulations used alone, the co-delivery of the two drugs with the combo chitosome obtained improved chemosensitivity of TNBC cells to DTX treatment through their synergistic mechanisms. Taken together, the developed chitosome could be a promising candidate for simultaneous delivery of insoluble chemotherapeutic drugs and gene agents for TNBC therapy. Graphical abstract.
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Affiliation(s)
- Xianfu Sun
- Department of Breast Oncology, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, 450008, Henan, China
| | - Haipeng Xu
- Department of Thoracic Oncology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, 350014, Fujian, China
| | - Tao Huang
- Department of Breast Oncology, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, 450008, Henan, China
| | - Chengjuan Zhang
- Department of Pathology, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, 450008, Henan, China
| | - Junzhao Wu
- Department of Breast Oncology, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, 450008, Henan, China
| | - Suxia Luo
- Department of Medical Oncology, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, 450008, Henan, China.
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Liu H, Li S, Feng L, Hua Y, Cai Y, Yin M, Wan Y, Wang H. A selective colorimetric and efficient removal strategy for mercury (II) using mesoporous silver-melamine nanocomposites synthesized by controlled supramolecular self-assembly. J Hazard Mater 2020; 388:121798. [PMID: 31822349 DOI: 10.1016/j.jhazmat.2019.121798] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 09/29/2019] [Accepted: 11/29/2019] [Indexed: 06/10/2023]
Abstract
Mesoporous silver-melamine (Ag-MA) nanocomposites were synthesized by controlled supramolecular self-assembly with various structural morphologies. It was discovered that the rod-like Ag-MA nanocomposites could present the larger Hg2+-enhanced catalysis by forming Ag-Hg alloys. Also, they could display large surface-to-volume area and high aqueous stability for the selective Hg2+ enrichment and absorption of Hg2+ ions by yielding the stable coordination complexes. A catalysis-based colorimetric method was thus developed using 96-wells plates to probe Hg2+ ions in blood and wastewater with the linear Hg2+ concentrations ranging from 1.0 nM to 600 nM and 0.50 nM to 700 nM, respectively. Besides, mesoporous Ag-MA absorbents could facilitate the removal of Hg2+ ions in wastewater with the removal efficiency up to 99.76 % and the absorption capacity of 598.99 mg g-1.
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Affiliation(s)
- Huan Liu
- Rizhao Key Laboratory of Marine Medicine and Materials Applied Technologies, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu City, Shandong Province, 273165, PR China
| | - Shuai Li
- Rizhao Key Laboratory of Marine Medicine and Materials Applied Technologies, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu City, Shandong Province, 273165, PR China
| | - Luping Feng
- Rizhao Key Laboratory of Marine Medicine and Materials Applied Technologies, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu City, Shandong Province, 273165, PR China
| | - Yue Hua
- Rizhao Key Laboratory of Marine Medicine and Materials Applied Technologies, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu City, Shandong Province, 273165, PR China
| | - Yuanyuan Cai
- Rizhao Key Laboratory of Marine Medicine and Materials Applied Technologies, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu City, Shandong Province, 273165, PR China
| | - Mengyuan Yin
- Rizhao Key Laboratory of Marine Medicine and Materials Applied Technologies, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu City, Shandong Province, 273165, PR China
| | - Yuqi Wan
- Rizhao Key Laboratory of Marine Medicine and Materials Applied Technologies, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu City, Shandong Province, 273165, PR China
| | - Hua Wang
- Rizhao Key Laboratory of Marine Medicine and Materials Applied Technologies, College of Chemistry and Chemical Engineering, Qufu Normal University, Qufu City, Shandong Province, 273165, PR China.
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Wu K, Chen D, Lu S, Fang J, Zhu X, Yang F, Pan T, Fang Z. Supramolecular self-assembly synthesis of noble-metal-free (C, Ce) co-doped g-C 3N 4 with porous structure for highly efficient photocatalytic degradation of organic pollutants. J Hazard Mater 2020; 382:121027. [PMID: 31446346 DOI: 10.1016/j.jhazmat.2019.121027] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 08/14/2019] [Accepted: 08/15/2019] [Indexed: 05/17/2023]
Abstract
Developing inexpensive and stable photocatalysts without noble metals, yet remarkably enhancing the photocatalytic activities, is highly needed. Here, a novel carbon and cerium co-doped porous g-C3N4 (C/Ce-CN) has been successfully prepared through thermal polymerization of the supramolecular aggregation. The morphologies, chemical structures, optical and photoelectrochemical properties of the synthesized photocatalysts were analyzed via a series of characterization measurements. Experimental results indicated that C/Ce-CN showed remarkably enhanced photocatalytic activity of TC and RhB degradation, which is about 2.6 and 2.4 times higher than that of pristine CN, and it also exhibited a good stability. Compared with bare CN, the enhanced performance of C/Ce-CN is mainly attributed to the stronger utilization rate of visible light, the rapider charge transfer rate, the longer lifetime of carriers and the larger surface specific area. The main intermediates in degradation process of antibiotics were tested by the HPLC-MS. Finally, the possible photocatalytic degradation pathways and mechanisms were proposed.
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Affiliation(s)
- Kun Wu
- School of Environment, South China Normal University, Guangzhou, 510006, China; Dongguan Industrial Investment Holding Group Co., Ltd., Dongguan, 523000, China
| | - Dongdong Chen
- School of Environment, South China Normal University, Guangzhou, 510006, China
| | - Shaoyou Lu
- School of Public Health, Sun Yat-sen University, Shenzhen, 518055, China
| | - Jianzhang Fang
- School of Environment, South China Normal University, Guangzhou, 510006, China; Guangdong Technology Research Center for Ecological Management and Remediation of Urban Water System, Guangzhou, 510006, China.
| | - Ximiao Zhu
- School of Environment, South China Normal University, Guangzhou, 510006, China
| | - Fan Yang
- School of Environment, South China Normal University, Guangzhou, 510006, China
| | - Tao Pan
- School of Environment, South China Normal University, Guangzhou, 510006, China
| | - Zhanqiang Fang
- School of Environment, South China Normal University, Guangzhou, 510006, China; Guangdong Technology Research Center for Ecological Management and Remediation of Urban Water System, Guangzhou, 510006, China
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Klein T, Gruschwitz FV, Rogers S, Hoeppener S, Nischang I, Brendel JC. The influence of directed hydrogen bonds on the self-assembly of amphiphilic polymers in water. J Colloid Interface Sci 2019; 557:488-497. [PMID: 31541918 DOI: 10.1016/j.jcis.2019.09.046] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 09/11/2019] [Accepted: 09/12/2019] [Indexed: 12/16/2022]
Abstract
HYPOTHESIS Molecules forming directed intermolecular hydrogen bonds, such as the well-known benzene-1,3,5-tricarboxamides (BTA) motif, are known to self-assemble into long fibrous structures. However, only a few of these systems have so far demonstrated the ability to form such anisotropic nanostructures, if they are combined with hydrophilic polymers to create an amphiphilic material. Here, we designed BTA-polymer conjugates to investigate whether the directionality of the hydrogen bonds or the ratio of hydrophobic to hydrophilic parts of the molecule, and thus the packing parameter, is decisive for obtaining anisotropic supramolecular structures in water. EXPERIMENTS Poly(ethylene glycol) was conjugated to BTA moieties with varying lengths of hydrophobic alkyl spacers ranging from two to twelve methylene units. The resulting amphiphilic materials were characterized in aqueous solution by light and small-angle neutron scattering, analytical ultracentrifugation, and cryo-transmission electron microscopy. FINDINGS While spherical micelles were observed for C6 and C10 alkyl spacers, anisotropic structures were only present in case of the C12 spacer. The comparison to an analogous material, which lacks the directed hydrogen bonds, revealed that the BTA motif cannot provide a sufficient driving force to induce anisotropic structures, but increases the packing density in the hydrophobic part. Therefore, the packing parameter governs the appearance of anisotropic aggregates.
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Affiliation(s)
- Tobias Klein
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743 Jena, Germany; Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Franka V Gruschwitz
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743 Jena, Germany; Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Sarah Rogers
- ISIS Neutron Facility, Rutherford Appleton Laboratory, Harwell Oxford, Didcot OX11 0QX, United Kingdom
| | - Stephanie Hoeppener
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743 Jena, Germany; Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Ivo Nischang
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743 Jena, Germany; Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Johannes C Brendel
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743 Jena, Germany; Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743 Jena, Germany.
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Wimmerová M, Siglerová V, Šaman D, Šlouf M, Kaletová E, Wimmer Z. Improved enzyme-mediated synthesis and supramolecular self-assembly of naturally occurring conjugates of β-sitosterol. Steroids 2017; 117:38-43. [PMID: 27648857 DOI: 10.1016/j.steroids.2016.09.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Revised: 08/17/2016] [Accepted: 09/14/2016] [Indexed: 11/16/2022]
Abstract
Naturally occurring acylated β-sitosteryl glucosides have been investigated for their novel properties. The synthetic protocol based on the literature data was improved and optimized. The main improvement consists in employing systems of ionic liquids combined with organic solvents in lipase-mediated esterification of (3β)-stigmast-5-en-3-yl β-d-glucopyranoside to get (3β)-stigmast-5-en-3-yl 6-O-acyl-β-d-glucopyranosides. Maximum yields of these products were achieved with Candida antarctica lipase B immobilized on Immobead 150, recombinant from yeast, in absolute THF and in the presence of either ionic liquid [1-butyl-3-methyl imidazolium tetrafluoroborate ([BMIM]BF4) or 1-butyl-3-methyl imidazolium hexafluorophosphate ([BMIM]PF6)] employed. Pharmacological activity of (3β)-stigmast-5-en-3-yl 6-O-acyl-β-d-glucopyranosides was studied in tests on MCF7 tumor cell lines; the compounds displayed moderate activity which was higher than the activity of β-sitosterol. Supramolecular characteristics were discovered at (3β)-stigmast-5-en-3-yl 6-O-dodecanoyl-β-d-glucopyranoside that formed supramolecular polymer through multiple H-bonds in a methanol/water system (60/40). Its formation was confirmed by the independent UV-vis measurements during certain time period, by variable temperature DOSY-NMR measurement in deuteriochloroform, and visualized by transmission electron microscopy (TEM) and atomic force microscopy (AFM) showing chiral helical structures and complex superassembly systems based on fibrous supramolecular polymer. In contrary, no such properties have been observed for the other two (3β)-stigmast-5-en-3-yl 6-O-acyl-β-d-glucopyranosides under the given experimental conditions.
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Affiliation(s)
- Martina Wimmerová
- Institute of Experimental Botany, Academy of Sciences of the Czech Republic, Isotope Laboratory, Vídeňská 1083, 14220 Prague 4, Czech Republic; University of Chemistry and Technology, Department of Chemistry of Natural Compounds, Technická 5, Czech Republic
| | - Věra Siglerová
- Institute of Experimental Botany, Academy of Sciences of the Czech Republic, Isotope Laboratory, Vídeňská 1083, 14220 Prague 4, Czech Republic
| | - David Šaman
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo náměstí 2, 16610 Prague 6, Czech Republic
| | - Miroslav Šlouf
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - Eva Kaletová
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo náměstí 2, 16610 Prague 6, Czech Republic
| | - Zdeněk Wimmer
- Institute of Experimental Botany, Academy of Sciences of the Czech Republic, Isotope Laboratory, Vídeňská 1083, 14220 Prague 4, Czech Republic; University of Chemistry and Technology, Department of Chemistry of Natural Compounds, Technická 5, Czech Republic.
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Feng X, Wang X, Cai W, Hong N, Hu Y, Liew KM. Integrated effect of supramolecular self-assembled sandwich-like melamine cyanurate/MoS 2 hybrid sheets on reducing fire hazards of polyamide 6 composites. J Hazard Mater 2016; 320:252-264. [PMID: 27544738 DOI: 10.1016/j.jhazmat.2016.08.012] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 08/02/2016] [Accepted: 08/04/2016] [Indexed: 05/11/2023]
Abstract
A novel strategy of using supramolecular self-assembly for preparing sandwich-like melamine cyanurate/MoS2 sheets as the hybrid flame retardants for polyamide 6 (PA6) is reported for the first time. The introduction of MoS2 sheets function not only as a template to induce the formation of two-dimensional melamine cyanurate capping layers but also as a synergist to generate integrated flame-retarding effect of hybrid sheets, as well as a high-performance smoke suppressor to reduce fire hazards of PA6 materials. Once incorporating this well-designed structures (4wt%) into PA6 matrix, there resulted in a remarkable drop (40%) in the peak heat release rate and a 25% reduction in total heat release. Moreover, the smoke production and pyrolysis gaseous products were efficiently suppressed by the addition of sandwich-like hybrid sheets. The integrated functions consisting of inherent flame retarding effect, physical barrier performance and catalytic activity are believed to the crucial guarantee for the reduced fire hazards of PA6 nanocomposites. Furthermore, this novel strategy with facile and scalable features may provide reference for developing various kinds of MoS2 based hybrid sheets for diverse applications.
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Affiliation(s)
- Xiaming Feng
- State Key Laboratory of Fire Science, University of Science and Technology of China, Anhui 230026, PR China; Suzhou Key Laboratory of Urban Public Safety, Suzhou Institute for Advanced Study, University of Science and Technology of China, Suzhou, Jiangsu 215123, PR China
| | - Xin Wang
- State Key Laboratory of Fire Science, University of Science and Technology of China, Anhui 230026, PR China.
| | - Wei Cai
- State Key Laboratory of Fire Science, University of Science and Technology of China, Anhui 230026, PR China
| | - Ningning Hong
- State Key Laboratory of Fire Science, University of Science and Technology of China, Anhui 230026, PR China
| | - Yuan Hu
- State Key Laboratory of Fire Science, University of Science and Technology of China, Anhui 230026, PR China; Suzhou Key Laboratory of Urban Public Safety, Suzhou Institute for Advanced Study, University of Science and Technology of China, Suzhou, Jiangsu 215123, PR China.
| | - Kim Meow Liew
- Suzhou Key Laboratory of Urban Public Safety, Suzhou Institute for Advanced Study, University of Science and Technology of China, Suzhou, Jiangsu 215123, PR China; Department of Architectural and Civil Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
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Staroseletz Y, Williams A, Burusco KK, Alibay I, Vlassov VV, Zenkova MA, Bichenkova EV. 'Dual' peptidyl-oligonucleotide conjugates: Role of conformational flexibility in catalytic cleavage of RNA. Biomaterials 2016; 112:44-61. [PMID: 27744220 DOI: 10.1016/j.biomaterials.2016.09.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 09/23/2016] [Accepted: 09/26/2016] [Indexed: 02/06/2023]
Abstract
Traditional therapeutic interventions against abnormal gene expression in disease states at the level of expressed proteins are becoming increasingly difficult due to poor selectivity, off-target effects and associated toxicity. Upstream catalytic targeting of specific RNA sequences offers an alternative platform for drug discovery to achieve more potent and selective treatment through antisense interference with disease-relevant RNAs. We report a novel class of catalytic biomaterials, comprising amphipathic RNA-cleaving peptides placed between two RNA recognition motifs, here demonstrated to target the TΨC loop and 3'- acceptor stem of tRNAPhe. These unique peptidyl-oligonucleotide 'dual' conjugates (DCs) were created by phosphoramidate or thiol-maleimide conjugation chemistry of a TΨC-targeting oligonucleotide to the N-terminus of the amphipathic peptide sequence, followed by amide coupling of a 3'-acceptor stem-targeting oligonucleotide to the free C-terminal carboxylic acid functionality of the same peptide. Hybridization of the DCs bearing two spatially-separated recognition motifs with the target tRNAPhe placed the peptide adjacent to a single-stranded RNA region and promoted cleavage within the 'action radius' of the catalytic peptide. Up to 100% cleavage of the target tRNAPhe was achieved by the best candidate (i.e. DC6) within 4 h, when conformational flexibility was introduced into the linker regions between the peptide and oligonucleotide components. This study provides the strong position for future development of highly selective RNA-targeting agents that can potentially be used for disease-selective treatment at the level of messenger, micro, and genomic viral RNA.
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Affiliation(s)
- Yaroslav Staroseletz
- Institute of Chemical Biology and Fundamental Medicine SB RAS, 8 Laurentiev Avenue, 630090, Novosibirsk, Russia
| | - Aled Williams
- School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Oxford Road, Manchester, M13 9PT, UK
| | - Kepa K Burusco
- School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Oxford Road, Manchester, M13 9PT, UK
| | - Irfan Alibay
- School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Oxford Road, Manchester, M13 9PT, UK
| | - Valentin V Vlassov
- Institute of Chemical Biology and Fundamental Medicine SB RAS, 8 Laurentiev Avenue, 630090, Novosibirsk, Russia
| | - Marina A Zenkova
- Institute of Chemical Biology and Fundamental Medicine SB RAS, 8 Laurentiev Avenue, 630090, Novosibirsk, Russia
| | - Elena V Bichenkova
- School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Oxford Road, Manchester, M13 9PT, UK.
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