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Covalent attachment of three derivatives of pegylated RGD peptides on the NH2-terminated silicon surfaces: Impact on fibroblast cell behavior. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2021; 1863:183770. [PMID: 34517002 DOI: 10.1016/j.bbamem.2021.183770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 08/30/2021] [Accepted: 09/01/2021] [Indexed: 11/20/2022]
Abstract
This paper describes a simple strategy for covalent immobilization of the NHS-PEG-RGD peptide with the three different PEG lengths (8, 13, and 22) onto the amine-terminated monolayers with the subsequent investigation of fibroblast cellular response to the three derivatives of pegylated RGD peptides-modified substrates. First, acetamide-terminated monolayers were prepared on the hydride terminated silicon surface to protect NH2-terminated monolayers. This was followed by the removal of the protective groups, and the reaction of NHS-PEG8-RGD, NHS-PEG13-RGD and NHS-PEG22-RGD peptides with the NH2-terminated monolayers while reducing nonspecific protein adsorption. Analysis of X-ray photoelectron spectroscopy (XPS), Fourier Transform Infrared (ATR-FTIR) spectroscopy, and Ellipsometry measurements demonstrated that PEG13-RGD peptide forms relatively a more homogenous, thicker and stable structure compared with those of PEG8-RGD and PEG22-RGD peptide. The quantitative and qualitative assessment of cell adhesion, spreading, and proliferation indicated that relatively further elongated fibroblast cells attached on the PEG13-RGD peptide relative to those on the PEG8-RGD and PEG22-RGD peptide. The results presented here may offer a developed strategy based on the length of the spacer to regulate cellular behavior on the surface substrates.
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Oleszko-Torbus N, Mendrek B, Kowalczuk A, Wałach W, Trzebicka B, Utrata-Wesołek A. The Role of Polymer Structure in Formation of Various Nano- and Microstructural Materials: 30 Years of Research in the Laboratory of Nano- and Microstructural Materials at the Centre of Polymer and Carbon Materials PAS. Polymers (Basel) 2021; 13:2892. [PMID: 34502932 PMCID: PMC8434041 DOI: 10.3390/polym13172892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 08/25/2021] [Accepted: 08/26/2021] [Indexed: 11/16/2022] Open
Abstract
The review summarizes the research carried out in the Laboratory of Nano- and Microstructural Materials at the Centre of Polymer and Carbon Materials, Polish Academy of Sciences (CMPW PAS). Studies carried out for many years under the guidance of Professor Andrzej Dworak led to the development and exploration of the mechanisms of oxirane and cyclic imine polymerization and controlled radical polymerization of methacrylate monomers. Based on that knowledge, within the last three decades, macromolecules with the desired composition, molar mass and topology were obtained and investigated. The ability to control the structure of the synthesized polymers turned out to be important, as it provided a way to tailor the physiochemical properties of the materials to their specific uses. Many linear polymers and copolymers as well as macromolecules with branched, star, dendritic and hyperbranched architectures were synthesized. Thanks to the applied controlled polymerization techniques, it was possible to obtain hydrophilic, hydrophobic, amphiphilic and stimulus-sensitive polymers. These tailor-made polymers with controlled properties were used for the construction of various types of materials, primarily on the micro- and nanoscales, with a wide range of possible applications, mainly in biomedicine. The diverse topology of polymers, and thus their properties, made it possible to obtain various types of polymeric nanostructures and use them as nanocarriers by encapsulation of biologically active substances. Additionally, polymer layers were obtained with features useful in medicine, particularly regenerative medicine and tissue engineering.
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Affiliation(s)
| | | | | | | | - Barbara Trzebicka
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 41-819 Zabrze, Poland; (N.O.-T.); (B.M.); (A.K.); (W.W.)
| | - Alicja Utrata-Wesołek
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 41-819 Zabrze, Poland; (N.O.-T.); (B.M.); (A.K.); (W.W.)
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Purushottam L, V B U, Rawale DG, Gujrati M, Mishra SD, T K S, Reddy NC, Adusumalli SR, Mishra RK, Rai V. A single amino acid Gly-tag enables metal-free protein purification. Chem Sci 2020; 11:13137-13142. [PMID: 34094495 PMCID: PMC8163197 DOI: 10.1039/d0sc01153c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Analytically pure proteins are indispensable for diverse applications, including therapeutics. Here, we report a methodology where a single amino acid, glycine, enables metal-free protein purification. This robust platform is enabled by a Gly-tag resin for site-specific capture, enrichment, and release through chemically triggered C-C bond dissociation by resonance-assisted electron density polarization.
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Affiliation(s)
- Landa Purushottam
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal Bhopal Bypass Road, Bhauri Bhopal 462 066 India
| | - Unnikrishnan V B
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal Bhopal Bypass Road, Bhauri Bhopal 462 066 India
| | - Dattatraya Gautam Rawale
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal Bhopal Bypass Road, Bhauri Bhopal 462 066 India
| | - Mansi Gujrati
- Department of Biological Sciences, Indian Institute of Science Education and Research Bhopal Bhopal Bypass Road, Bhauri Bhopal 462 066 India
| | - Surya Dev Mishra
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal Bhopal Bypass Road, Bhauri Bhopal 462 066 India .,Department of Biological Sciences, Indian Institute of Science Education and Research Bhopal Bhopal Bypass Road, Bhauri Bhopal 462 066 India
| | - Sajeev T K
- Department of Biological Sciences, Indian Institute of Science Education and Research Bhopal Bhopal Bypass Road, Bhauri Bhopal 462 066 India
| | - Neelesh C Reddy
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal Bhopal Bypass Road, Bhauri Bhopal 462 066 India
| | - Srinivasa Rao Adusumalli
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal Bhopal Bypass Road, Bhauri Bhopal 462 066 India
| | - Ram Kumar Mishra
- Department of Biological Sciences, Indian Institute of Science Education and Research Bhopal Bhopal Bypass Road, Bhauri Bhopal 462 066 India
| | - Vishal Rai
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal Bhopal Bypass Road, Bhauri Bhopal 462 066 India
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Al Musaimi O, Basso A, de la Torre BG, Albericio F. Calculating Resin Functionalization in Solid-Phase Peptide Synthesis Using a Standardized Method based on Fmoc Determination. ACS COMBINATORIAL SCIENCE 2019; 21:717-721. [PMID: 31610120 DOI: 10.1021/acscombsci.9b00154] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Solid-phase synthesis is the method of choice for peptide preparation in both research and industrial settings. The whole synthetic process is governed by the initial functionalization of the resin. Although the literature provides several methods to determine such functionalization, the addition of an Fmoc-amino acid and the posterior spectrophotometric measurement of the dibenzofulvene adduct formed after Fmoc removal is the most widely used for this purpose. However, a range of molar extinction coefficient (ε) values and even wavelengths are currently used in the field, with no standardization of the method. Here, we propose a single-point standardization method that involves a standard solution of the corresponding amino acid to be checked that is prepared freshly at the time of the analysis.
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Affiliation(s)
- Othman Al Musaimi
- Peptide Science Laboratory, School of Chemistry and Physics, University of KwaZulu-Natal, Durban 4001, South Africa
- KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban 4041, South Africa
| | - Alessandra Basso
- Purolite, Llantrisant Business Park, Llantrisant, CF72 8LF, United Kingdom
| | - Beatriz G. de la Torre
- KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban 4041, South Africa
| | - Fernando Albericio
- Peptide Science Laboratory, School of Chemistry and Physics, University of KwaZulu-Natal, Durban 4001, South Africa
- CIBER-BBN, Networking Centre on Bioengineering, Biomaterials and Nanomedicine, Department of Organic Chemistry, University of Barcelona, 08028 Barcelona, Spain
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Adamus A, Komasa J, Kadłubowski S, Ulański P, Rosiak J, Kawecki M, Klama-Baryła A, Dworak A, Trzebicka B, Szweda R. Thermoresponsive poly[tri(ethylene glycol) monoethyl ether methacrylate]-peptide surfaces obtained by radiation grafting-synthesis and characterisation. Colloids Surf B Biointerfaces 2016; 145:185-193. [DOI: 10.1016/j.colsurfb.2016.04.050] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 04/06/2016] [Accepted: 04/30/2016] [Indexed: 12/19/2022]
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Szweda R, Trzebicka B, Dworak A, Otulakowski L, Kosowski D, Hertlein J, Haladjova E, Rangelov S, Szweda D. Smart Polymeric Nanocarriers of Met-enkephalin. Biomacromolecules 2016; 17:2691-700. [DOI: 10.1021/acs.biomac.6b00725] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Roza Szweda
- Centre
of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Sklodowskiej 34, Zabrze, 41-819, Poland
| | - Barbara Trzebicka
- Centre
of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Sklodowskiej 34, Zabrze, 41-819, Poland
| | - Andrzej Dworak
- Centre
of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Sklodowskiej 34, Zabrze, 41-819, Poland
| | - Lukasz Otulakowski
- Centre
of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Sklodowskiej 34, Zabrze, 41-819, Poland
| | - Dominik Kosowski
- Centre
of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Sklodowskiej 34, Zabrze, 41-819, Poland
| | - Justyna Hertlein
- Centre
of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Sklodowskiej 34, Zabrze, 41-819, Poland
| | - Emi Haladjova
- Institute
of Polymers, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., bl. 103-A, Sofia, 1113, Bulgaria
| | - Stanislav Rangelov
- Institute
of Polymers, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., bl. 103-A, Sofia, 1113, Bulgaria
| | - Dawid Szweda
- Centre
of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Sklodowskiej 34, Zabrze, 41-819, Poland
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Kim YJ, Liu Y, Li S, Rohrs J, Zhang R, Zhang X, Wang P. Co-Eradication of Breast Cancer Cells and Cancer Stem Cells by Cross-Linked Multilamellar Liposomes Enhances Tumor Treatment. Mol Pharm 2015; 12:2811-22. [PMID: 26098197 DOI: 10.1021/mp500754r] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The therapeutic limitations of conventional chemotherapeutic drugs have emerged as a challenge for breast cancer therapy; these shortcomings are likely due, at least in part, to the presence of the cancer stem cells (CSCs). Salinomycin, a polyether antibiotic isolated from Streptomyces albus, has been shown to selectively inhibit cancer stem cells; however, its clinical application has been hindered by the drug's hydrophobility, which limits the available administration routes. In this paper, a novel drug delivery system, cross-linked multilamellar liposomal vesicles (cMLVs), was optimized to allow for the codelivery of salinomycin (Sal) and doxorubicin (Dox), targeting both CSCs and breast cancer cells. The results show that the cMLV particles encapsulating different drugs have similar sizes with high encapsulation efficiencies (>80%) for both Dox and Sal. Dox and Sal were released from the particles in a sustained manner, indicating the stability of the cMLVs. Moreover, the inhibition of cMLV(Dox+Sal) against breast cancer cells was stronger than either single-drug treatment. The efficient targeting of cMLV(Dox+Sal) to CSCs was validated through in vitro experiments using breast cancer stem cell markers. In accordance with the in vitro combination treatment, in vivo breast tumor suppression by cMLV(Dox+Sal) was 2-fold more effective than single-drug cMLV treatment or treatment with the combination of cMLV(Dox) and cMLV(Sal). Thus, this study demonstrates that cMLVs represent a novel drug delivery system that can serve as a potential platform for combination therapy, allowing codelivery of an anticancer agent and a CSC inhibitor for the elimination of both breast cancer cells and cancer stem cells.
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Affiliation(s)
- Yu Jeong Kim
- †Department of Pharmacology and Pharmaceutical Sciences, University of Southern California, Los Angeles, California 90089, United States
| | - Yarong Liu
- ‡Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, California 90089, United States
| | - Si Li
- †Department of Pharmacology and Pharmaceutical Sciences, University of Southern California, Los Angeles, California 90089, United States
| | - Jennifer Rohrs
- §Department of Biomedical Engineering, University of Southern California, Los Angeles, California 90089, United States
| | - Rachel Zhang
- §Department of Biomedical Engineering, University of Southern California, Los Angeles, California 90089, United States
| | - Xiaoyang Zhang
- ‡Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, California 90089, United States
| | - Pin Wang
- †Department of Pharmacology and Pharmaceutical Sciences, University of Southern California, Los Angeles, California 90089, United States.,‡Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, California 90089, United States.,§Department of Biomedical Engineering, University of Southern California, Los Angeles, California 90089, United States
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Mohamad NR, Marzuki NHC, Buang NA, Huyop F, Wahab RA. An overview of technologies for immobilization of enzymes and surface analysis techniques for immobilized enzymes. BIOTECHNOL BIOTEC EQ 2015; 29:205-220. [PMID: 26019635 PMCID: PMC4434042 DOI: 10.1080/13102818.2015.1008192] [Citation(s) in RCA: 707] [Impact Index Per Article: 78.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Accepted: 10/07/2014] [Indexed: 01/28/2023] Open
Abstract
The current demands of sustainable green methodologies have increased the use of enzymatic technology in industrial processes. Employment of enzyme as biocatalysts offers the benefits of mild reaction conditions, biodegradability and catalytic efficiency. The harsh conditions of industrial processes, however, increase propensity of enzyme destabilization, shortening their industrial lifespan. Consequently, the technology of enzyme immobilization provides an effective means to circumvent these concerns by enhancing enzyme catalytic properties and also simplify downstream processing and improve operational stability. There are several techniques used to immobilize the enzymes onto supports which range from reversible physical adsorption and ionic linkages, to the irreversible stable covalent bonds. Such techniques produce immobilized enzymes of varying stability due to changes in the surface microenvironment and degree of multipoint attachment. Hence, it is mandatory to obtain information about the structure of the enzyme protein following interaction with the support surface as well as interactions of the enzymes with other proteins. Characterization technologies at the nanoscale level to study enzymes immobilized on surfaces are crucial to obtain valuable qualitative and quantitative information, including morphological visualization of the immobilized enzymes. These technologies are pertinent to assess efficacy of an immobilization technique and development of future enzyme immobilization strategies.
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Affiliation(s)
- Nur Royhaila Mohamad
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Skudai81310, Johor, Malaysia
| | - Nur Haziqah Che Marzuki
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Skudai81310, Johor, Malaysia
| | - Nor Aziah Buang
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Skudai81310, Johor, Malaysia
| | - Fahrul Huyop
- Department of Biotechnology and Medical Engineering, Faculty of Bioscience and Medical Engineering, Universiti Teknologi Malaysia, Skudai81310, Johor, Malaysia
| | - Roswanira Abdul Wahab
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Skudai81310, Johor, Malaysia
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Trzcinska R, Balin K, Kubacki J, Marzec ME, Pedrys R, Szade J, Silberring J, Dworak A, Trzebicka B. Relevance of the poly(ethylene glycol) linkers in peptide surfaces for proteases assays. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:5015-5025. [PMID: 24697681 DOI: 10.1021/la500457q] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Poly(ethylene glycol)s (PEGs) with different lengths were used as linkers during the preparation of peptide surfaces for protease detection. In the first approach, the PEG monolayers were prepared using a "grafting to" method on 3-aminopropyltrietoxysilane (APTES)-modified silicon wafers. Protected peptides with a fluorescent marker were synthesized by Fmoc solid phase synthesis. The protected peptide structures enabled their site-specific immobilization onto the PEG surfaces. Alternatively, the PEG-peptide surface was obtained by immobilizing a PEG-peptide conjugate directly onto the modified silicon wafer. The surfaces (composition, grafting density, hydrophilicity, and roughness) were characterized by time-of-flight-secondary ion mass spectrometry (ToF-SIMS), X-ray photoelectron spectroscopy (XPS), contact angle (CA), and atomic force microscopy (AFM). Introducing the PEG linker between the peptide and surface increased their resistance toward nonspecific protein adsorption. The peptide surfaces were examined as analytical platforms to study the action of trypsin as a representative protease. The products of the enzymatic hydrolysis were analyzed by fluorescence spectroscopy, electrospray ionization-mass spectrometry (ESI-MS), and ToF-SIMS. Conclusions about the optimal length of the PEG linker for the analytical application of PEG-peptide surfaces were drawn. This work demonstrates an effective synthetic procedure to obtain PEG-peptide surfaces as attractive platforms for the development of peptide microarrays.
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Affiliation(s)
- Roza Trzcinska
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences , M. Curie-Sklodowskiej 34, Zabrze 41-819, Poland
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