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Li J, Zeng H, You Y, Wang R, Tan T, Wang W, Yin L, Zeng Z, Zeng Y, Xie T. Active targeting of orthotopic glioma using biomimetic liposomes co-loaded elemene and cabazitaxel modified by transferritin. J Nanobiotechnology 2021; 19:289. [PMID: 34565383 PMCID: PMC8474941 DOI: 10.1186/s12951-021-01048-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 09/17/2021] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Effective treatment of glioma requires a nanocarrier that can cross the blood-brain barrier (BBB) to target the tumor lesion. In the current study, elemene (ELE) and cabazitaxel (CTX) liposomes were prepared by conjugating liposomes with transferrin (Tf) and embedding the cell membrane proteins of RG2 glioma cells into liposomes (active-targeting biomimetic liposomes, Tf-ELE/CTX@BLIP), which exhibited effective BBB infiltration to target glioma. RESULTS The findings showed that Tf-ELE/CTX@BLIP was highly stable. The liposomes exhibited highly significant homologous targeting and immune evasion in vitro and a 5.83-fold intake rate compared with classical liposome (ELE/CTX@LIP). Bioluminescence imaging showed increased drug accumulation in the brain and increased tumor penetration of Tf-ELE/CTX@BLIP in orthotopic glioma model nude mice. Findings from in vivo studies indicated that the antitumor effect of the Tf-ELE/CTX@BLIP led to increased survival time and decreased tumor volume in mice. The average tumor fluorescence intensity after intravenous administration of Tf-ELE/CTX@BLIP was 65.2, 12.5, 22.1, 6.6, 2.6, 1.5 times less compared with that of the control, CTX solution, ELE solution, ELE/CTX@LIP, ELE/CTX@BLIP, Tf-ELE/CTX@LIP groups, respectively. Histopathological analysis showed that Tf-ELE/CTX@BLIP were less toxic compared with administration of the CTX solution. CONCLUSION These findings indicate that the active-targeting biomimetic liposome, Tf-ELE/CTX@BLIP, is a promising nanoplatform for delivery of drugs to gliomas.
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Affiliation(s)
- Jie Li
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, Sichuan, People's Republic of China
- School of Pharmacy, Hangzhou Normal University, Zhejiang, 311121, Hangzhou, People's Republic of China
- Key Laboratory of Elemene Class Anti-Cancer Chinese Medicine of Zhejiang Province, Hangzhou, 311121, Zhejiang, People's Republic of China
- Engineering Laboratory of Development and Application of Traditional Chinese Medicine from Zhejiang Province, Hangzhou, 311121, Zhejiang, People's Republic of China
| | - Huamin Zeng
- Chengdu Ping An Healthcare Medical Examination Laboratory, Chengdu, 611130, Sichuan, People's Republic of China
| | - Yu You
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, Sichuan, People's Republic of China
- School of Pharmacy, Hangzhou Normal University, Zhejiang, 311121, Hangzhou, People's Republic of China
- Key Laboratory of Elemene Class Anti-Cancer Chinese Medicine of Zhejiang Province, Hangzhou, 311121, Zhejiang, People's Republic of China
- Engineering Laboratory of Development and Application of Traditional Chinese Medicine from Zhejiang Province, Hangzhou, 311121, Zhejiang, People's Republic of China
| | - Rongrong Wang
- School of Pharmacy, Hangzhou Normal University, Zhejiang, 311121, Hangzhou, People's Republic of China
- Key Laboratory of Elemene Class Anti-Cancer Chinese Medicine of Zhejiang Province, Hangzhou, 311121, Zhejiang, People's Republic of China
- Engineering Laboratory of Development and Application of Traditional Chinese Medicine from Zhejiang Province, Hangzhou, 311121, Zhejiang, People's Republic of China
| | - Tiantian Tan
- School of Pharmacy, Hangzhou Normal University, Zhejiang, 311121, Hangzhou, People's Republic of China
- Key Laboratory of Elemene Class Anti-Cancer Chinese Medicine of Zhejiang Province, Hangzhou, 311121, Zhejiang, People's Republic of China
- Engineering Laboratory of Development and Application of Traditional Chinese Medicine from Zhejiang Province, Hangzhou, 311121, Zhejiang, People's Republic of China
| | - Weiming Wang
- School of Pharmacy, Hangzhou Normal University, Zhejiang, 311121, Hangzhou, People's Republic of China
- Key Laboratory of Elemene Class Anti-Cancer Chinese Medicine of Zhejiang Province, Hangzhou, 311121, Zhejiang, People's Republic of China
- Engineering Laboratory of Development and Application of Traditional Chinese Medicine from Zhejiang Province, Hangzhou, 311121, Zhejiang, People's Republic of China
| | - Liyan Yin
- Traditional Chinese Medicine College of Guangdong Pharmaceutical University, Guangzhou, 511400, People's Republic of China
| | - Zhaowu Zeng
- School of Pharmacy, Hangzhou Normal University, Zhejiang, 311121, Hangzhou, People's Republic of China.
- Key Laboratory of Elemene Class Anti-Cancer Chinese Medicine of Zhejiang Province, Hangzhou, 311121, Zhejiang, People's Republic of China.
- Engineering Laboratory of Development and Application of Traditional Chinese Medicine from Zhejiang Province, Hangzhou, 311121, Zhejiang, People's Republic of China.
| | - Yiying Zeng
- School of Pharmacy, Hangzhou Normal University, Zhejiang, 311121, Hangzhou, People's Republic of China
- Key Laboratory of Elemene Class Anti-Cancer Chinese Medicine of Zhejiang Province, Hangzhou, 311121, Zhejiang, People's Republic of China
- Engineering Laboratory of Development and Application of Traditional Chinese Medicine from Zhejiang Province, Hangzhou, 311121, Zhejiang, People's Republic of China
| | - Tian Xie
- School of Pharmacy, Hangzhou Normal University, Zhejiang, 311121, Hangzhou, People's Republic of China.
- Key Laboratory of Elemene Class Anti-Cancer Chinese Medicine of Zhejiang Province, Hangzhou, 311121, Zhejiang, People's Republic of China.
- Engineering Laboratory of Development and Application of Traditional Chinese Medicine from Zhejiang Province, Hangzhou, 311121, Zhejiang, People's Republic of China.
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Tang TMS, Luk LYP. Asparaginyl endopeptidases: enzymology, applications and limitations. Org Biomol Chem 2021; 19:5048-5062. [PMID: 34037066 PMCID: PMC8209628 DOI: 10.1039/d1ob00608h] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 05/12/2021] [Indexed: 12/15/2022]
Abstract
Asparaginyl endopeptidases (AEP) are cysteine proteases found in mammalian and plant cells. Several AEP isoforms from plant species were found to exhibit transpeptidase activity which is integral for the key head-to-tail cyclisation reaction during the biosynthesis of cyclotides. Since many plant AEPs exhibit excellent enzyme kinetics for peptide ligation via a relatively short substrate recognition sequence, they have become appealing tools for peptide and protein modification. In this review, research focused on the enzymology of AEPs and their applications in polypeptide cyclisation and labelling will be presented. Importantly, the limitations of using AEPs and opportunities for future research and innovation will also be discussed.
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Affiliation(s)
- T M Simon Tang
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK.
| | - Louis Y P Luk
- School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK. and Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK
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3
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Nanomedicines functionalized with anti-EGFR ligands for active targeting in cancer therapy: Biological strategy, design and quality control. Int J Pharm 2021; 605:120795. [PMID: 34119579 DOI: 10.1016/j.ijpharm.2021.120795] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 05/28/2021] [Accepted: 06/07/2021] [Indexed: 02/06/2023]
Abstract
Recently, active targeting using nanocarriers with biological ligands has emerged as a novel strategy for improving the delivery of therapeutic and/or imaging agents to tumor cells. The presence of active targeting moieties on the surface of nanomedicines has been shown to play an important role in enhancing their accumulation in tumoral cells and tissues versus healthy ones. This property not only helps to increase the therapeutic index but also to minimize possible side effects of the designed nanocarriers. Since the overexpression of epidermal growth factor receptors (EGFR) is a common occurrence linked to the progression of a broad variety of cancers, the potential application of anti-EGFR immunotherapy and EGFR-targeting ligands in active targeting nanomedicines is getting increasing attention. Henceforth, the EGFR-targeted nanomedicines were extensively studied in vitro and in vivo but exhibited both satisfactory and disappointing results, depending on used protocols. This review is designed to give an overview of a variety of EGFR-targeting ligands available for nanomedicines, how to conjugate them onto the surface of nanoparticles, and the main analytical methods to confirm this successful conjugation.
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Sellaoui L, Badawi M, Monari A, Tatarchuk T, Jemli S, Luiz Dotto G, Bonilla-Petriciolet A, Chen Z. Make it clean, make it safe: A review on virus elimination via adsorption. CHEMICAL ENGINEERING JOURNAL (LAUSANNE, SWITZERLAND : 1996) 2021; 412:128682. [PMID: 33776550 PMCID: PMC7983426 DOI: 10.1016/j.cej.2021.128682] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 12/21/2020] [Accepted: 01/13/2021] [Indexed: 05/09/2023]
Abstract
Recently, the potential dangers of viral infection transmission through water and air have become the focus of worldwide attention, via the spread of COVID-19 pandemic. The occurrence of large-scale outbreaks of dangerous infections caused by unknown pathogens and the isolation of new pandemic strains require the development of improved methods of viruses' inactivation. Viruses are not stable self-sustaining living organisms and are rapidly inactivated on isolated surfaces. However, water resources and air can participate in the pathogens' diffusion, stabilization, and transmission. Viruses inactivation and elimination by adsorption are relevant since they can represent an effective and low-cost method to treat fluids, and hence limit the spread of pathogen agents. This review analyzed the interaction between viruses and carbon-based, oxide-based, porous materials and biological materials (e.g., sulfated polysaccharides and cyclodextrins). It will be shown that these adsorbents can play a relevant role in the viruses removal where water and air purification mostly occurring via electrostatic interactions. However, a clear systematic vision of the correlation between the surface potential and the adsorption capacity of the different filters is still lacking and should be provided to achieve a better comprehension of the global phenomenon. The rationalization of the adsorption capacity may be achieved through a proper physico-chemical characterization of new adsorbents, including molecular modeling and simulations, also considering the adsorption of virus-like particles on their surface. As a most timely perspective, the results on this review present potential solutions to investigate coronaviruses and specifically SARS-CoV-2, responsible of the COVID-19 pandemic, whose spread can be limited by the efficient disinfection and purification of closed-spaces air and urban waters.
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Affiliation(s)
- Lotfi Sellaoui
- Department of Environmental Engineering, School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Michael Badawi
- Laboratoire de Physique et Chimie Théoriques LPCT UMR CNRS 7019, Université de Lorraine, Vandœuvre-lès-Nancy, France
| | - Antonio Monari
- Laboratoire de Physique et Chimie Théoriques LPCT UMR CNRS 7019, Université de Lorraine, Vandœuvre-lès-Nancy, France
| | - Tetiana Tatarchuk
- Educational and Scientific Center of Materials Science and Nanotechnology, Vasyl Stefanyk Precarpathian National University, Ivano-Frankivsk 76018, Ukraine
| | - Sonia Jemli
- Laboratory of Microbial Biotechnology, Enzymatic and Biomolecules (LMBEB), Centre of Biotechnology of Sfax, University of Sfax, Tunisia
- Faculty of Sciences of Sfax, Biology Department, University of Sfax, Tunisia
| | - Guilherme Luiz Dotto
- Chemical Engineering Department, Federal University of Santa Maria-UFSM, 1000, Roraima Avenue, 97105-900 Santa Maria, RS, Brazil
| | | | - Zhuqi Chen
- Department of Environmental Engineering, School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
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Vilaça N, Bertão AR, Prasetyanto EA, Granja S, Costa M, Fernandes R, Figueiredo F, Fonseca AM, De Cola L, Baltazar F, Neves IC. Surface functionalization of zeolite-based drug delivery systems enhances their antitumoral activity in vivo. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 120:111721. [PMID: 33545872 DOI: 10.1016/j.msec.2020.111721] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 10/26/2020] [Accepted: 11/09/2020] [Indexed: 10/23/2022]
Abstract
Zeolites have attractive features making them suitable carriers for drug delivery systems (DDS). As such, we loaded the anticancer drug 5-fluorouracil (5-FU), into two different zeolite structures, faujasite (NaY) and Linde Type L (LTL), to obtain different DDS. The prepared DDS were tested in vitro using breast cancer, colorectal carcinoma, and melanoma cell lines and in vivo using the chick embryo chorioallantoic membrane model (CAM). Both assays showed the best results for the Hs578T breast cancer cells, with a higher potentiation for 5-FU encapsulated in the zeolite LTL. To unveil the endocytic mechanisms involved in the internalization of the zeolite nanoparticles, endocytosis was inhibited pharmacologically in breast cancer and epithelial mammary human cells. The results suggest that a caveolin-mediated process was responsible for the internalized zeolite nanoparticles. Aiming to boost the DDS efficacy, the disc-shaped zeolite LTL outer surface was functionalized using amino (NH2) or carboxylic acid (COOH) groups and coated with poly-l-lysine (PLL). Positively functionalized surface LTL nanoparticles revealed to be non-toxic to human cells and, importantly, their internalization was faster and led to a higher tumor reduction in vivo. Overall, our results provide further insights into the mechanisms of interaction between zeolite-based DDS and cancer cells, and pave the way for future studies aiming to improve DDS anticancer activity.
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Affiliation(s)
- Natália Vilaça
- CQUM, Centre of Chemistry, University of Minho, Campus Gualtar, 4710-057 Braga, Portugal; Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, 4710-057 Braga, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Ana Raquel Bertão
- CQUM, Centre of Chemistry, University of Minho, Campus Gualtar, 4710-057 Braga, Portugal; Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, 4710-057 Braga, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Eko Adi Prasetyanto
- Institut de science et d'ingénierie supramoléculaire (ISIS), Université de Strasbourg, 8 Alle Gaspard Monge, Strasbourg, France; Dept. of Pharmacy, Faculty of Medicine, Atma Jaya Catholic University of Indonesia, Jl. Pluit Raya 2, 14440 Jakarta, Indonesia
| | - Sara Granja
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, 4710-057 Braga, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Marta Costa
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, 4710-057 Braga, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Rui Fernandes
- i3S - Instituto de Investigação e Inovação em Saúde and HEMS/IBMC - Histology and Electron Microscopy Service, University of Porto, 4200-135 Porto, Portugal
| | - Francisco Figueiredo
- i3S - Instituto de Investigação e Inovação em Saúde and HEMS/IBMC - Histology and Electron Microscopy Service, University of Porto, 4200-135 Porto, Portugal
| | - António M Fonseca
- CQUM, Centre of Chemistry, University of Minho, Campus Gualtar, 4710-057 Braga, Portugal; CEB - Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - Luisa De Cola
- Institut de science et d'ingénierie supramoléculaire (ISIS), Université de Strasbourg, 8 Alle Gaspard Monge, Strasbourg, France
| | - Fátima Baltazar
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Campus Gualtar, 4710-057 Braga, Portugal; ICVS/3B's - PT Government Associate Laboratory, Braga, Guimarães, Portugal.
| | - Isabel C Neves
- CQUM, Centre of Chemistry, University of Minho, Campus Gualtar, 4710-057 Braga, Portugal; CEB - Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal.
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6
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Anfray C, Komaty S, Corroyer-Dulmont A, Zaarour M, Helaine C, Ozcelik H, Allioux C, Toutain J, Goldyn K, Petit E, Bordji K, Bernaudin M, Valtchev V, Touzani O, Mintova S, Valable S. Nanosized zeolites as a gas delivery platform in a glioblastoma model. Biomaterials 2020; 257:120249. [PMID: 32739663 DOI: 10.1016/j.biomaterials.2020.120249] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 07/14/2020] [Accepted: 07/17/2020] [Indexed: 01/04/2023]
Abstract
Approaches able to counteract, at least temporarily, hypoxia, a well-known factor of resistance to treatment in solid tumors are highly desirable. Herein, we report the use of nanosized zeolite crystals as hyperoxic/hypercapnic gas carriers for glioblastoma. First, the non-toxic profile of nanosized zeolite crystals in living animals (mice, rats and non-human primates) and in various cell types is presented. Second, the ability of the nanosized zeolites to act as a vasoactive agent for a targeted re-oxygenation of the tumor after intravenous injection is shown. As attested by an MRI protocol, the zeolites were able to increase oxygenation and blood volume specifically within the brain tumor whilst no changes in the healthy-non tumoral brain-were observed. The first proof of concept for the use of metal-containing nanosized zeolites as a tool for vectorization of hyperoxic/hypercapnic gases in glioblastoma is revealed.
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Affiliation(s)
- Clément Anfray
- Normandie Université, UNICAEN, CEA, CNRS, ISTCT/CERVOxy group, GIP Cyceron, Caen, France
| | - Sarah Komaty
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie (LCS), 14050, Caen, France
| | | | - Moussa Zaarour
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie (LCS), 14050, Caen, France
| | - Charly Helaine
- Normandie Université, UNICAEN, CEA, CNRS, ISTCT/CERVOxy group, GIP Cyceron, Caen, France
| | - Hayriye Ozcelik
- Normandie Université, UNICAEN, CEA, CNRS, ISTCT/CERVOxy group, GIP Cyceron, Caen, France
| | - Clélia Allioux
- Normandie Université, UNICAEN, CEA, CNRS, ISTCT/CERVOxy group, GIP Cyceron, Caen, France
| | - Jérôme Toutain
- Normandie Université, UNICAEN, CEA, CNRS, ISTCT/CERVOxy group, GIP Cyceron, Caen, France
| | - Kamila Goldyn
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie (LCS), 14050, Caen, France
| | - Edwige Petit
- Normandie Université, UNICAEN, CEA, CNRS, ISTCT/CERVOxy group, GIP Cyceron, Caen, France
| | - Karim Bordji
- Normandie Université, UNICAEN, CEA, CNRS, ISTCT/CERVOxy group, GIP Cyceron, Caen, France
| | - Myriam Bernaudin
- Normandie Université, UNICAEN, CEA, CNRS, ISTCT/CERVOxy group, GIP Cyceron, Caen, France
| | - Valentin Valtchev
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie (LCS), 14050, Caen, France
| | - Omar Touzani
- Normandie Université, UNICAEN, CEA, CNRS, ISTCT/CERVOxy group, GIP Cyceron, Caen, France
| | - Svetlana Mintova
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie (LCS), 14050, Caen, France.
| | - Samuel Valable
- Normandie Université, UNICAEN, CEA, CNRS, ISTCT/CERVOxy group, GIP Cyceron, Caen, France.
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Khodadadi Yazdi M, Zarrintaj P, Hosseiniamoli H, Mashhadzadeh AH, Saeb MR, Ramsey JD, Ganjali MR, Mozafari M. Zeolites for theranostic applications. J Mater Chem B 2020; 8:5992-6012. [PMID: 32602516 DOI: 10.1039/d0tb00719f] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Theranostic platforms bring about a revolution in disease management. During recent years, theranostic nanoparticles have been utilized for imaging and therapy simultaneously. Zeolites, because of their porous structure and tunable properties, which can be modified with various materials, can be used as a delivery agent. The porous structure of a zeolite enables it to be loaded and unloaded with various molecules such as therapeutic agents, photosensitizers, biological macromolecules, MRI contrast agents, radiopharmaceuticals, near-infrared (NIR) fluorophores, and microbubbles. Furthermore, theranostic zeolite nanocarriers can be further modified with targeting ligands, which is highly interesting for targeted cancer therapies.
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Affiliation(s)
- Mohsen Khodadadi Yazdi
- Center of Excellence in Electrochemistry, School of Chemistry, College of Science, University of Tehran, Tehran, Iran
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Tang TMS, Cardella D, Lander AJ, Li X, Escudero JS, Tsai YH, Luk LYP. Use of an asparaginyl endopeptidase for chemo-enzymatic peptide and protein labeling. Chem Sci 2020; 11:5881-5888. [PMID: 32874509 PMCID: PMC7441500 DOI: 10.1039/d0sc02023k] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 05/11/2020] [Indexed: 12/19/2022] Open
Abstract
Asparaginyl endopeptidases (AEPs) are ideal for peptide and protein labeling. However, because of the reaction reversibility, a large excess of labels or backbone modified substrates are needed. In turn, simple and cheap reagents can be used to label N-terminal cysteine, but its availability inherently limits the potential applications. Aiming to address these issues, we have created a chemo-enzymatic labeling system that exploits the substrate promiscuity of AEP with the facile chemical reaction between N-terminal cysteine and 2-formyl phenylboronic acid (FPBA). In this approach, AEP is used to ligate polypeptides with a Asn-Cys-Leu recognition sequence with counterparts possessing an N-terminal Gly-Leu. Instead of being a labeling reagent, the commercially available FPBA serves as a scavenger converting the byproduct Cys-Leu into an inert thiazolidine derivative. This consequently drives the AEP labeling reaction forward to product formation with a lower ratio of label to protein substrate. By carefully screening the reaction conditions for optimal compatibility and minimal hydrolysis, conversion to the ligated product in the model reaction resulted in excellent yields. The versatility of this AEP-ligation/FPBA-coupling system was further demonstrated by site-specifically labeling the N- or C-termini of various proteins.
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Affiliation(s)
- T M Simon Tang
- School of Chemistry , Cardiff University , Main Building, Park Place , Cardiff , CF10 3AT , UK .
| | - Davide Cardella
- School of Chemistry , Cardiff University , Main Building, Park Place , Cardiff , CF10 3AT , UK .
| | - Alexander J Lander
- School of Chemistry , Cardiff University , Main Building, Park Place , Cardiff , CF10 3AT , UK .
| | - Xuefei Li
- School of Chemistry , Cardiff University , Main Building, Park Place , Cardiff , CF10 3AT , UK .
| | - Jorge S Escudero
- School of Chemistry , Cardiff University , Main Building, Park Place , Cardiff , CF10 3AT , UK .
| | - Yu-Hsuan Tsai
- School of Chemistry , Cardiff University , Main Building, Park Place , Cardiff , CF10 3AT , UK .
| | - Louis Y P Luk
- School of Chemistry , Cardiff University , Main Building, Park Place , Cardiff , CF10 3AT , UK .
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Li S, Bouchy S, Penninckx S, Marega R, Fichera O, Gallez B, Feron O, Martinive P, Heuskin AC, Michiels C, Lucas S. Antibody-functionalized gold nanoparticles as tumor-targeting radiosensitizers for proton therapy. Nanomedicine (Lond) 2019; 14:317-333. [PMID: 30675822 DOI: 10.2217/nnm-2018-0161] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
AIM This study aimed at developing antibody-functionalized gold nanoparticles (AuNPs) to selectively target cancer cells and probing their potential radiosensitizing effects under proton irradiation. MATERIALS & METHODS AuNPs were conjugated with cetuximab (Ctxb-AuNPs). Ctxb-AuNP uptake was evaluated by transmission electron microscopy and atomic absorption spectroscopy. Radioenhancing effect was assessed using conventional clonogenic assay. RESULTS & CONCLUSION Ctxb-AuNPs specifically bound to and accumulated in EGFR-overexpressing A431 cells, compared with EGFR-negative MDA-MB-453 cells. Ctxb-AuNPs enhanced the effect of proton irradiation in A431 cells but not in MDA-MB-453 cells. These data indicate, for the first time, that combining enhanced uptake by specific targeting and radioenhancing effect, using conjugated AuNPs, is a promising strategy to increase cell killing by protontherapy.
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Affiliation(s)
- Sha Li
- Research Center for the Physics of Matter & Radiation (PMR-LARN), Namur Research Institute for Life Sciences (NARILIS), University of Namur, B-5000 Namur, Belgium
| | - Sandra Bouchy
- Unité de Recherche en Biologie Cellulaire (URBC), Namur Research Institute for Life Sciences (NARILIS), University of Namur, B-5000 Namur, Belgium
| | - Sebastien Penninckx
- Research Center for the Physics of Matter & Radiation (PMR-LARN), Namur Research Institute for Life Sciences (NARILIS), University of Namur, B-5000 Namur, Belgium
| | - Riccardo Marega
- Research Center for the Physics of Matter & Radiation (PMR-LARN), Namur Research Institute for Life Sciences (NARILIS), University of Namur, B-5000 Namur, Belgium
| | - Ornella Fichera
- Research Center for the Physics of Matter & Radiation (PMR-LARN), Namur Research Institute for Life Sciences (NARILIS), University of Namur, B-5000 Namur, Belgium
| | - Bernard Gallez
- Biomedical Magnetic Resonance Group (REMA), Louvain Drug Research Institute, Université Catholique de Louvain, B-1200 Woluwé, Saint Lambert, Belgium
| | - Olivier Feron
- Pole of Pharmacology & Therapeutics (FATH), Institut de Recherche Expérimentale et Clinique (IREC), UCL (Université Catholique de Louvain), B-1200 Brussels, Belgium
| | - Philippe Martinive
- Department of Radiotherapy & Oncology, CHU & University of Liège, B-4000 Liège, Belgium
| | - Anne-Catherine Heuskin
- Research Center for the Physics of Matter & Radiation (PMR-LARN), Namur Research Institute for Life Sciences (NARILIS), University of Namur, B-5000 Namur, Belgium
| | - Carine Michiels
- Unité de Recherche en Biologie Cellulaire (URBC), Namur Research Institute for Life Sciences (NARILIS), University of Namur, B-5000 Namur, Belgium
| | - Stéphane Lucas
- Research Center for the Physics of Matter & Radiation (PMR-LARN), Namur Research Institute for Life Sciences (NARILIS), University of Namur, B-5000 Namur, Belgium
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Calzaferri G. Entropy in multiple equilibria, compounds with different sites. Phys Chem Chem Phys 2018; 20:29070-29084. [PMID: 30452040 DOI: 10.1039/c8cp04145h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The influence of entropy in multiple chemical equilibria is investigated for systems with different types of sites for the condition that the binding enthalpy of the species is the same within each type of sites and independent of those species that are already bonded. This allows splitting of the free reaction enthalpy into the particle distribution term and all other contributions for each type of sites separately and, hence, to evaluate this entropy contribution to the free reaction enthalpy. The situations for which this applies can be chemically very different, e.g. acid base, ligand exchange, isomerisation, conformational change, rearrangement of a ligand, ion exchange, adsorption of a species on the surface of a particle or a dendrimer, insertion of charged or neutral species into the cavities of a microporous or mesoporous host. We provide physical insight by discussing Xrc1{n1ABn2}Xrc2 systems. The number of coordination sites A and B are n1 and n2, respectively. The indices rc1 = 1, 2,…,n1 and rc2 = 1, 2,…,n2 count the number of X bonded to sites A and sites B, respectively. An important result is that the large number of equilibrium constants needed to describe those situations can be expressed as a function of two constants only. This allows studying systems quantitatively by experimental and theoretical means which otherwise might be difficult to handle. It has also implication for theoretical studies in the sense that it is sufficient to model only two reactions instead of many in order to describe a system. The results remain valid for systems with more than two types of different sites. The description of the entropy driven development of the fractional equilibrium coverage of the sites provides a new tool for understanding adsorption and ion exchange isotherms. The fractional equilibrium coverage of the sites can be described as a linear combination of individual Langmuir isotherms despite of the fact that such a linear combination has never the shape of the original Langmuir isotherm. This is remarkable and very useful. It provides us with new tools for describing and testing isotherms based on well defined, transparent physical ideas. Explicit solution for systems with 2, 3, 4, 5, 6, and 12 coordination sites are reported. Applications to a system with 12 coordination sites serve to illustrate information that can be obtained for complex situations.
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Affiliation(s)
- Gion Calzaferri
- Department of Chemistry and Biochemistry, Freiestrasse 3, 3012 Bern, Switzerland.
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Li J, Yang Y, Zhang X, Zhang B, Chang H, Wei W. Resonance Rayleigh scattering assay for EGFR using antibody immobilized gold nanoparticles. LUMINESCENCE 2018; 33:1326-1332. [PMID: 30264501 DOI: 10.1002/bio.3550] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 08/12/2018] [Accepted: 08/20/2018] [Indexed: 12/17/2022]
Abstract
A highly selectivity determination of epidermal growth factor receptor (EGFR) has been described in the article. Antibody immobilized cysteamine (Cys) functionalized gold nanoparticles (AuNP) were proposed as immunosensors, and resonance Rayleigh scattering (RRS) was used for detection. First, Cys stabilized AuNPs (Cys-AuNP) were prepared by the reduction of chloroauric acid with sodium borohydride in the presence of Cys. Further, anti-EGFR antibody (Cetuximab, C225) was covalently linked to the Cys-AuNP by carbodiimide-mediated amidation protocol to yield the C225-AuNP immunoprobe. The prepared conjugations were characterized by ultraviolet-visible (UV-vis) spectroscopy, transmission electron microscopy (TEM), Fourier transform infrared (FT-IR) and sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE). Based on the specific binding of C225 to EGFR, an RRS method was established to determine the concentration of EGFR. Under the optimal conditions, the concentration of EGFR was related to the intensity of RRS in the range 30-130 ng ml-1 with a low detection limit of 4.0 ng ml-1 . Meanwhile, the proposed immunosensor exhibited excellent selectivity and anti-interference property. The method was applied to the determination of EGFR in human serum and cancer cell lysate samples with satisfactory results.
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Affiliation(s)
- Junbo Li
- Department of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan, P.R. China.,Pharmaceutical Department, Changzhi Medical College, Changzhi, P.R. China
| | - Yanqiang Yang
- Changzhi Entry-exit Inspection and Quarantine Bureau, Changzhi, P.R. China
| | - Xinxin Zhang
- Changzhi Entry-exit Inspection and Quarantine Bureau, Changzhi, P.R. China
| | - Bing Zhang
- Department of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan, P.R. China
| | - Honghong Chang
- Department of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan, P.R. China
| | - Wenlong Wei
- Department of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan, P.R. China
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Vilaça N, Totovao R, Prasetyanto EA, Miranda-Gonçalves V, Morais-Santos F, Fernandes R, Figueiredo F, Bañobre-López M, Fonseca AM, De Cola L, Baltazar F, Neves IC. Internalization studies on zeolite nanoparticles using human cells. J Mater Chem B 2018; 6:469-476. [PMID: 32254526 DOI: 10.1039/c7tb02534c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Zeolites are crystalline porous materials with a regular framework which have non-toxic effects on a variety of human cell lines and have been explored for cell imaging and drug delivery. Understanding the interaction between zeolite nanoparticles and cells is imperative for improving their potentialities, since the process of internalization of these particles is still poorly understood. In this study, the intracellular trafficking and internalization kinetics of zeolite L into breast cancer cells and normal epithelial mammary cells were analysed using scanning electron microscopy (SEM), confocal microscopy and transmission electron microscopy (TEM). We also studied the involvement of endocytic pathways using two pharmacological inhibitors, chlorpromazine and dynasore. Zeolite nanoparticles were taken up by both cell types and the cellular uptake was fast, and started immediately after 5 min of incubation. Interestingly, the uptake was dependent on the cell type since in breast cancer cells it was faster and more efficient, with a higher number of nanoparticles being internalized by cancer cells over time, compared to that in the epithelial mammary cells. TEM results showed that the internalized nanoparticles were mainly localized in the cell vacuoles. The data obtained upon using endocytic pharmacological inhibitors suggest that the zeolite L uptake is mediated by caveolin.
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Affiliation(s)
- Natália Vilaça
- Centre of Chemistry, Chemistry Department, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal.
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Calzaferri G. Entropy in multiple equilibria, theory and applications. Phys Chem Chem Phys 2017; 19:10611-10621. [DOI: 10.1039/c7cp00584a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Entropy controls the dependence of the equilibrium constants in the synthesis of host–guest composites on the occupation rc for channels of different length.
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Affiliation(s)
- Gion Calzaferri
- Department of Chemistry and Biochemistry
- 3012 Bern
- Switzerland
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