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Gulyak EL, Alferova VA, Korshun VA, Sapozhnikova KA. Introduction of Carbonyl Groups into Antibodies. Molecules 2023; 28:7890. [PMID: 38067618 PMCID: PMC10707781 DOI: 10.3390/molecules28237890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 11/26/2023] [Accepted: 11/29/2023] [Indexed: 12/18/2023] Open
Abstract
Antibodies and their derivatives (scFv, Fabs, etc.) represent a unique class of biomolecules that combine selectivity with the ability to target drug delivery. Currently, one of the most promising endeavors in this field is the development of molecular diagnostic tools and antibody-based therapeutic agents, including antibody-drug conjugates (ADCs). To meet this challenge, it is imperative to advance methods for modifying antibodies. A particularly promising strategy involves the introduction of carbonyl groups into the antibody that are amenable to further modification by biorthogonal reactions, namely aliphatic, aromatic, and α-oxo aldehydes, as well as aliphatic and aryl-alkyl ketones. In this review, we summarize the preparation methods and applications of site-specific antibody conjugates that are synthesized using this approach.
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Affiliation(s)
| | | | | | - Ksenia A. Sapozhnikova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Miklukho-Maklaya 16/10, 117997 Moscow, Russia; (E.L.G.); (V.A.A.); (V.A.K.)
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2
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Sugumaran M, Evans JJ. Catecholamine Derivatives as Novel Crosslinkers for the Synthesis of Versatile Biopolymers. J Funct Biomater 2023; 14:449. [PMID: 37754863 PMCID: PMC10531651 DOI: 10.3390/jfb14090449] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 08/07/2023] [Accepted: 08/29/2023] [Indexed: 09/28/2023] Open
Abstract
Catecholamine metabolites are not only involved in primary metabolism, but also in secondary metabolism, serving a diverse array of physiologically and biochemically important functions. Melanin, which originates from dopa and dopamine, found in the hair, eye, and skin of all animals, is an important biopolymeric pigment. It provides protection against damaging solar radiation to animals. N-Acetyldopamine and N-β-alanyldopamine play a crucial role in the hardening of the exoskeletons of all insects. In addition, insects and other arthropods utilize the melanogenic process as a key component of their defense systems. Many marine organisms utilize dopyl peptides and proteins as bonding materials to adhere to various substrata. Moreover, the complex dopa derivatives that are precursors to the formation of the exoskeletons of numerous marine organisms also exhibit antibiotic properties. The biochemistry and mechanistic transformations of different catecholamine derivatives to produce various biomaterials with antioxidant, antibiotic, crosslinking, and gluing capabilities are highlighted. These reactivities are exhibited through the transient and highly reactive quinones, quinone methides, and quinone methide imine amide intermediates, as well as chelation to metal ions. A careful consideration of the reactivities summarized in this review will inspire numerous strategies for synthesizing novel biomaterials for future medical and industrial use.
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Affiliation(s)
- Manickam Sugumaran
- Department of Biology, University of Massachusetts Boston, Boston, MA 02125, USA;
| | - Jason J. Evans
- Department of Chemistry, University of Massachusetts Boston, Boston, MA 02125, USA
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3
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Peng X, Hao J, Tao W, Guo D, Liang T, Hu X, Xu H, Fan X, Chen C. Amyloid-like aggregates of short self-assembly peptide selectively induce melanoma cell apoptosis. J Colloid Interface Sci 2023; 640:498-509. [PMID: 36871514 DOI: 10.1016/j.jcis.2023.02.088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 02/04/2023] [Accepted: 02/15/2023] [Indexed: 02/24/2023]
Abstract
With the rising global incidence of melanoma, new anti-melanoma drugs with low-inducing drug resistance and high selectivity are in urgent need. Inspired by the physiological events in which fibrillar aggregates formed by amyloid proteins are toxic to normal tissues, we here rationally design a tyrosinase responsive peptide, I4K2Y* (Ac-IIIIKKDopa-NH2). Such peptide self-assembled into long nanofibers outside the cells, while it was catalyzed into amyloid-like aggregates by tyrosinase which was rich in melanoma cells. The newly formed aggregates concentrated around the nucleus of melanoma cells, blocking the exchange of biomolecules between the nucleus and cytoplasm and finally leading to cell apoptosis via the S phase arrest in cell cycle distribution and dysfunction of mitochondria. Furthermore, I4K2Y* effectively inhibited B16 melanoma growth in a mouse model but with minimal side effects. We believe that the strategy of combining the usage of toxic amyloid-like aggregates and in-situ enzymatic reactions by specific enzymes in tumor cells will bring profound implications for designing new anti-tumor drugs with high selectivity.
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Affiliation(s)
- Xiaoting Peng
- State Key Laboratory of Heavy Oil Processing, Department of Biological and Energy Chemical Engineering, China University of Petroleum (East China), Qingdao 266555, China
| | - Jiachen Hao
- State Key Laboratory of Heavy Oil Processing, Department of Biological and Energy Chemical Engineering, China University of Petroleum (East China), Qingdao 266555, China
| | - Wenwen Tao
- State Key Laboratory of Heavy Oil Processing, Department of Biological and Energy Chemical Engineering, China University of Petroleum (East China), Qingdao 266555, China
| | - Diange Guo
- State Key Laboratory of Heavy Oil Processing, Department of Biological and Energy Chemical Engineering, China University of Petroleum (East China), Qingdao 266555, China
| | - Tiantian Liang
- State Key Laboratory of Heavy Oil Processing, Department of Biological and Energy Chemical Engineering, China University of Petroleum (East China), Qingdao 266555, China
| | - Xuelei Hu
- Department of Thoracic Surgery, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao 266035, China
| | - Hai Xu
- State Key Laboratory of Heavy Oil Processing, Department of Biological and Energy Chemical Engineering, China University of Petroleum (East China), Qingdao 266555, China
| | - Xinglong Fan
- Department of Thoracic Surgery, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao 266035, China.
| | - Cuixia Chen
- State Key Laboratory of Heavy Oil Processing, Department of Biological and Energy Chemical Engineering, China University of Petroleum (East China), Qingdao 266555, China.
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An S, Jeon EJ, Han SY, Jeon J, Lee MJ, Kim S, Shin M, Cho SW. pH-Universal Catechol-Amine Chemistry for Versatile Hyaluronic Acid Bioadhesives. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2202729. [PMID: 35989097 DOI: 10.1002/smll.202202729] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 07/01/2022] [Indexed: 06/15/2023]
Abstract
Catechol, a major mussel-inspired underwater adhesive moiety, has been used to develop functional adhesive hydrogels for biomedical applications. However, oxidative catechol chemistry for interpolymer crosslinking and adhesion is exclusively effective under alkaline conditions, with limited applications in non-alkaline conditions. To overcome this limitation, pH-universal catechol-amine chemistry to recapitulate naturally occurring biochemical events induced by pH variation in the mussel foot is suggested. Aldehyde moieties are introduced to hyaluronic acid (HA) by partial oxidation, which enables dual-mode catechol tethering to the HA via both stable amide and reactive secondary amine bonds. Because of the presence of additional reactive amine groups, the resultant aldehyde-modified HA conjugated with catechol (AH-CA) is effectively crosslinked in acidic and neutral pH conditions. The AH-CA hydrogel exhibits not only fast gelation via active crosslinking regardless of pH conditions, but also strong adhesion and excellent biocompatibility. The hydrogel enables rapid and robust wound sealing and hemostasis in neutral and alkaline conditions. The hydrogel also mediates effective therapeutic stem cell and drug delivery even in dynamic and harsh environments, such as a motile heart and acidic stomach. Therefore, the AH-CA hydrogel can serve as a versatile biomaterial in a wide range of pH conditions in vivo.
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Affiliation(s)
- Soohwan An
- Department of Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Eun Je Jeon
- Department of Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
- CellArtgen Inc., Seoul, 03722, Republic of Korea
| | - Seung Yeop Han
- Department of Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Jihoon Jeon
- Department of Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Mi Jeong Lee
- Department of Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Sooyeon Kim
- Department of Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
| | - Mikyung Shin
- Department of Biomedical Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
- Department of Intelligent Precision Healthcare Convergence, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Seung-Woo Cho
- Department of Biotechnology, Yonsei University, Seoul, 03722, Republic of Korea
- CellArtgen Inc., Seoul, 03722, Republic of Korea
- Center for Nanomedicine, Institute for Basic Science (IBS), Seoul, 03722, Republic of Korea
- Graduate Program of Nano Biomedical Engineering (NanoBME), Advanced Science Institute, Yonsei University, Seoul, 03722, Republic of Korea
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5
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Choi SJ, Bae SH, Lee JI, Bang EJ, Ko HM. Strength, Carbonation Resistance, and Chloride-Ion Penetrability of Cement Mortars Containing Catechol-Functionalized Chitosan Polymer. MATERIALS 2021; 14:ma14216395. [PMID: 34771921 PMCID: PMC8585477 DOI: 10.3390/ma14216395] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 10/20/2021] [Accepted: 10/21/2021] [Indexed: 11/16/2022]
Abstract
There have been numerous recent studies on improving the mechanical properties and durability of cement composites by mixing them with functional polymers. However, research into applying modified biopolymer such as catechol-functionalized chitosan to cement mortar or concrete is rare to the best of our knowledge. In this study, catechol-functionalized chitosan (Cat-Chit), a well-known bioinspired polymer that imitates the basic structures and functions of living organisms and biological materials in nature, was synthesized and combined with cement mortar in various proportions. The compressive strength, tensile strength, drying shrinkage, accelerated carbonation depth, and chloride-ion penetrability of these mixes were then evaluated. In the ultraviolet-visible spectra, a maximum absorption peak appeared at 280 nm, corresponding to catechol conjugation. The sample containing 7.5% Cat-Chit polymer in water (CPW) exhibited the highest compressive strength, and its 28-day compressive strength was ~20.2% higher than that of a control sample with no added polymer. The tensile strength of the samples containing 5% or more CPW was ~2.3-11.5% higher than that of the control sample. Additionally, all the Cat-Chit polymer mixtures exhibited lower carbonation depths than compared to the control sample. The total charge passing through the samples decreased as the amount of CPW increased. Thus, incorporating this polymer effectively improved the mechanical properties, carbonation resistance, and chloride-ion penetration resistance of cement mortar.
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Affiliation(s)
- Se-Jin Choi
- Department of Architectural Engineering, Wonkwang University, Iksan 54538, Korea; (S.-J.C.); (S.-H.B.); (J.-I.L.)
| | - Sung-Ho Bae
- Department of Architectural Engineering, Wonkwang University, Iksan 54538, Korea; (S.-J.C.); (S.-H.B.); (J.-I.L.)
| | - Jae-In Lee
- Department of Architectural Engineering, Wonkwang University, Iksan 54538, Korea; (S.-J.C.); (S.-H.B.); (J.-I.L.)
| | - Eun-Ji Bang
- Department of Chemistry, Wonkwang University, Iksan 54538, Korea;
| | - Haye-Min Ko
- Department of Chemistry, Wonkwang Institute of Material Science and Technology, Wonkwang University, Iksan 54538, Korea
- Correspondence: ; Tel.: +82-63-850-6789
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Hamada M, Iwata T, Fuki M, Kandori H, Weber S, Kobori Y. Orientations and water dynamics of photoinduced secondary charge-separated states for magnetoreception by cryptochrome. Commun Chem 2021; 4:141. [PMID: 36697801 PMCID: PMC9814139 DOI: 10.1038/s42004-021-00573-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 09/02/2021] [Indexed: 01/28/2023] Open
Abstract
In the biological magnetic compass, blue-light photoreceptor protein of cryptochrome is thought to conduct the sensing of the Earth's magnetic field by photoinduced sequential long-range charge-separation (CS) through a cascade of tryptophan residues, WA(H), WB(H) and WC(H). Mechanism of generating the weak-field sensitive radical pair (RP) is poorly understood because geometries, electronic couplings and their modulations by molecular motion have not been investigated in the secondary CS states generated prior to the terminal RP states. In this study, water dynamics control of the electronic coupling is revealed to be a key concept for sensing the direction of weak magnetic field. Geometry and exchange coupling (singlet-triplet energy gap: 2J) of photoinduced secondary CS states composed of flavin adenine dinucleotide radical anion (FAD-•) and radical cation WB(H)+• in the cryptochrome DASH from Xenopus laevis were clarified by time-resolved electron paramagnetic resonance. We found a time-dependent energetic disorder in 2J and was interpreted by a trap CS state capturing one reorientated water molecule at 120 K. Enhanced electron-tunneling by water-libration was revealed for the terminal charge-separation event at elevated temperature. This highlights importance of optimizing the electronic coupling for regulation of the anisotropic RP yield on the possible magnetic compass senses.
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Affiliation(s)
- Misato Hamada
- grid.31432.370000 0001 1092 3077Department of Chemistry, Graduate School of Science, Kobe University, 1‒1 Rokkodai‒cho, Nada‒ku, Kobe, 657‒8501 Japan
| | - Tatsuya Iwata
- grid.265050.40000 0000 9290 9879Department of Pharmaceutical Sciences, Toho University, Funabashi, Chiba 274‒8510 Japan
| | - Masaaki Fuki
- grid.31432.370000 0001 1092 3077Department of Chemistry, Graduate School of Science, Kobe University, 1‒1 Rokkodai‒cho, Nada‒ku, Kobe, 657‒8501 Japan ,grid.31432.370000 0001 1092 3077Molecular Photoscience Research Center, Kobe University, 1‒1 Rokkodai‒cho, Nada‒ku, Kobe, 657‒8501 Japan
| | - Hideki Kandori
- grid.47716.330000 0001 0656 7591Department of Life Science and Applied Chemistry, Nagoya Institute of Technology, Showa-ku, Nagoya 466-8555 Japan ,grid.47716.330000 0001 0656 7591OptoBioTechnology Research Center, Nagoya Institute of Technology, Showa-ku, Nagoya 466-8555 Japan
| | - Stefan Weber
- grid.5963.9Institute of Physical Chemistry, Albert-Ludwigs-Universität Freiburg, 79104 Freiburg, Germany
| | - Yasuhiro Kobori
- grid.31432.370000 0001 1092 3077Department of Chemistry, Graduate School of Science, Kobe University, 1‒1 Rokkodai‒cho, Nada‒ku, Kobe, 657‒8501 Japan ,grid.31432.370000 0001 1092 3077Molecular Photoscience Research Center, Kobe University, 1‒1 Rokkodai‒cho, Nada‒ku, Kobe, 657‒8501 Japan
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Carroll L, Pattison DI, Davies JB, Anderson RF, Lopez-Alarcon C, Davies MJ. Formation and detection of oxidant-generated tryptophan dimers in peptides and proteins. Free Radic Biol Med 2017; 113:132-142. [PMID: 28962874 DOI: 10.1016/j.freeradbiomed.2017.09.020] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 09/21/2017] [Accepted: 09/24/2017] [Indexed: 01/08/2023]
Abstract
Free radicals are produced during physiological processes including metabolism and the immune response, as well as on exposure to multiple external stimuli. Many radicals react rapidly with proteins resulting in side-chain modification, backbone fragmentation, aggregation, and changes in structure and function. Due to its low oxidation potential, the indole ring of tryptophan (Trp) is a major target, with this resulting in the formation of indolyl radicals (Trp•). These undergo multiple reactions including ring opening and dimerization which can result in protein aggregation. The factors that govern Trp• dimerization, the rate constants for these reactions and the exact nature of the products are not fully elucidated. In this study, second-order rate constants were determined for Trp• dimerization in Trp-containing peptides to be 2-6 × 108M-1s-1 by pulse radiolysis. Peptide charge and molecular mass correlated negatively with these rate constants. Exposure of Trp-containing peptides to steady-state radiolysis in the presence of NaN3 resulted in consumption of the parent peptide, and detection by LC-MS of up to 4 different isomeric Trp-Trp cross-links. Similar species were detected with other oxidants, including CO3•- (from the HCO3- -dependent peroxidase activity of bovine superoxide dismutase) and peroxynitrous acid (ONOOH) in the presence or absence of HCO3-. Trp-Trp species were also isolated and detected after alkaline hydrolysis of the oxidized peptides and proteins. These studies demonstrate that Trp• formed on peptides and proteins undergo rapid recombination reactions to form Trp-Trp cross-linked species. These products may serve as markers of radical-mediated protein damage, and represent an additional pathway to protein aggregation in cellular dysfunction and disease.
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Affiliation(s)
- Luke Carroll
- The Heart Research Institute, Newtown, Australia; Sydney Medical School, University of Sydney, Australia; Panum Institute, University of Copenhagen, Denmark
| | - David I Pattison
- The Heart Research Institute, Newtown, Australia; Sydney Medical School, University of Sydney, Australia
| | - Justin B Davies
- Australian Nuclear Science and Technology Organisation, Lucas Heights, Australia
| | | | | | - Michael J Davies
- The Heart Research Institute, Newtown, Australia; Sydney Medical School, University of Sydney, Australia; Panum Institute, University of Copenhagen, Denmark.
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Tanaka M, Kawai S, Iwasaki Y. Well-defined protein immobilization on photo-responsive phosphorylcholine polymer surfaces. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 28:2021-2033. [PMID: 28803516 DOI: 10.1080/09205063.2017.1366251] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
In this study, we propose a new polymer substrate that is able to covalently couple intended proteins and reduce nonspecific protein fouling. Poly[2-methacryloyloxyethyl phosphorylcholine (MPC)-ran-N-methacryloyl-(L)-tyrosinemethylester (MAT)] [P(MPC/MAT)] was synthesized by free-radical polymerization. The photooxidation of the MAT unit in the copolymer was observed under ultraviolet (UV) light at 254 nm. P(MPC/MAT) was spin-coated on silicon (Si) and gold substrates. Without UV irradiation of the polymer-coated surface, P(MPC/MAT) physisorbed on the substrates, and the thickness of the polymer layer was less than 10 nm, regardless of the polymer concentration in the coating solution. In contrast, when the polymer-coated surface was irradiated with UV light, the thickness of the polymer layer could be controlled by changing the polymer concentration of the coating solution. Competitive protein adsorption on P(MPC/MAT) was studied. Bovine serum albumin was first contacted with the surface and later challenged with bovine fibrinogen. On bare gold and Si substrates, a large amount of albumin was adsorbed, and the competitive adsorption of albumin and fibronectin was observed. In contrast, the non-UV-irradiated P(MPC/MAT) surface effectively reduced protein adsorption. Interestingly, on the UV-irradiated P(MPC/MAT) surface, the primary protein preferably bonded, and significantly less secondary protein was adsorbed compared to primary protein. Cell adhesion was also tested on the substrate to clarify the effects of proteins existing on the substrates. On the bare Si surface, many adherent cells were observed, regardless of the protein pretreatment. On the non-UV-irradiated P(MPC/MAT) surface, cell adhesion was effectively reduced along with protein adsorption. Cell adhesion on the UV-irradiated P(MPC/MAT) surface depended strongly on the type of protein that was initially in contact with the surface. We concluded that the desired proteins could be immobilized on the photo-activated P(MPC/MAT) surface while preserving their function. Moreover, competitive protein exchange and multilayer adsorption hardly occurred on the surface.
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Affiliation(s)
- Masako Tanaka
- a Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering , Kansai University , Suita-shi , Japan
| | - Shugo Kawai
- a Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering , Kansai University , Suita-shi , Japan
| | - Yasuhiko Iwasaki
- a Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering , Kansai University , Suita-shi , Japan
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Pretzler M, Bijelic A, Rompel A. Heterologous expression and characterization of functional mushroom tyrosinase (AbPPO4). Sci Rep 2017; 7:1810. [PMID: 28500345 PMCID: PMC5431950 DOI: 10.1038/s41598-017-01813-1] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 04/12/2017] [Indexed: 11/09/2022] Open
Abstract
Tyrosinases are an ubiquitous group of copper containing metalloenzymes that hydroxylate and oxidize phenolic molecules. In an application context the term 'tyrosinase' usually refers to 'mushroom tyrosinase' consisting of a mixture of isoenzymes and containing a number of enzymatic side-activities. We describe a protocol for the efficient heterologous production of tyrosinase 4 from Agaricus bisporus in Escherichia coli. Applying this procedure a pure preparation of a single isoform of latent tyrosinase can be achieved at a yield of 140 mg per liter of autoinducing culture medium. This recombinant protein possesses the same fold as the enzyme purified from the natural source as evidenced by single crystal X-ray diffraction. The latent enzyme can be activated by limited proteolysis with proteinase K which cleaves the polypeptide chain after K382, only one The latent enzyme can amino acid before the main in-vivo activation site. Latent tyrosinase can be used as obtained and enzymatic activity may be induced in the reaction mixture by the addition of an ionic detergent (e.g. 2 mM SDS). The proteolytically activated mushroom tyrosinase shows >50% of its maximal activity in the range of pH 5 to 10 and accepts a wide range of substrates including mono- and diphenols, flavonols and chalcones.
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Affiliation(s)
- Matthias Pretzler
- Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Althanstraße 14, 1090, Wien, Austria
| | - Aleksandar Bijelic
- Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Althanstraße 14, 1090, Wien, Austria
| | - Annette Rompel
- Universität Wien, Fakultät für Chemie, Institut für Biophysikalische Chemie, Althanstraße 14, 1090, Wien, Austria.
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10
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Lee J, Yoo KC, Ko J, Yoo B, Shin J, Lee SJ, Sohn D. Hollow hyaluronic acid particles by competition between adhesive and cohesive properties of catechol for anticancer drug carrier. Carbohydr Polym 2017; 164:309-316. [DOI: 10.1016/j.carbpol.2017.02.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 12/26/2016] [Accepted: 02/02/2017] [Indexed: 11/26/2022]
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11
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Oxidative transformation of a tunichrome model compound provides new insight into the crosslinking and defense reaction of tunichromes. Bioorg Chem 2017; 71:219-229. [DOI: 10.1016/j.bioorg.2017.02.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 02/10/2017] [Accepted: 02/13/2017] [Indexed: 11/19/2022]
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12
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Zieger MM, Pop-Georgievski O, de Los Santos Pereira A, Verveniotis E, Preuss CM, Zorn M, Reck B, Goldmann AS, Rodriguez-Emmenegger C, Barner-Kowollik C. Ultrathin Monomolecular Films and Robust Assemblies Based on Cyclic Catechols. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:670-679. [PMID: 28001408 DOI: 10.1021/acs.langmuir.6b03419] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We introduce a newly designed catechol-based compound and its application for the preparation of homogeneous monomolecular layers as well as for robust assemblies on various substrates. The precisely defined cyclic catechol material (CyCat) was prepared from ortho-dimethoxybenzene in a phenolic resin-like synthesis and subsequent deprotection, featuring molecules with up to 32 catechol units. The CyCat's chemical structure was carefully assessed via matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF), proton nuclear magnetic resonance (1H NMR), diffusion ordered spectroscopy (2D DOSY) and high resolution electrospray ionization mass spectrometry (ESI MS) experiments. The formation of colloidal aggregates of the CyCat material in alkaline solution was followed by dynamic light scattering (DLS) and further verified by dropcasting CyCat from solution on highly oriented pyrolytic graphite (HOPG), which was examined by Kelvin probe force microscopy (KPFM). The adsorption behavior of the CyCat to form monomolecular layers was investigated in real time by surface plasmon resonance (SPR). Formation of these thin CyCat layers (1.6-2.1 nm) on Au, SiO2 and TiO2 substrates was corroborated by spectroscopic ellipsometry (SE) and X-ray photoelectron spectroscopy (XPS). The prepared coating perfectly reflects the surface structure of the underlying substrate and does not exhibit CyCat colloidal aggregates as verified by atomic force microscopy (AFM). The functional nature of the prepared catechol monolayers was evidenced by reaction with 4-bromophenethylamine and bis(3-aminopropyl)-terminated poly(ethylene oxide) (PEO). Multilayer assemblies were prepared by a simple procedure of iterative immersion in solutions of CyCat and a multifunctional amine on Au, SiO2 and TiO2 substrates forming thicker coatings (up to 12 nm). Postmodification with small organic molecules was performed to covalently attach trifluoroacetyl, tetrazole and 2-bromo-2-methylpropanoyl moieties to the amine groups of the multilayer assembly coating. Furthermore, the versatility of the novel multilayer coating was underpinned by "grafting-to" of phenacyl sulfide-terminated PEO and "grafting-from" of poly(methyl methacrylate) via surface-initiated atom transfer radical polymerization (ATRP).
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Affiliation(s)
- Markus M Zieger
- Preparative Macromolecular Chemistry, Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT) , Engesserstraße 18, 76128 Karlsruhe, Germany
- Institut für Biologische Grenzflächen, Karlsruhe Institute of Technology (KIT), Hermann-von-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Ognen Pop-Georgievski
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic v.v.i. , Heyrovsky sq. 2, 162 06 Prague, Czech Republic
| | - Andres de Los Santos Pereira
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic v.v.i. , Heyrovsky sq. 2, 162 06 Prague, Czech Republic
| | - Elisseos Verveniotis
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS) , 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
| | - Corinna M Preuss
- Preparative Macromolecular Chemistry, Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT) , Engesserstraße 18, 76128 Karlsruhe, Germany
- Institut für Biologische Grenzflächen, Karlsruhe Institute of Technology (KIT), Hermann-von-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | | | - Bernd Reck
- BASF SE, Registered Office , Ludwigshafen, Germany
| | - Anja S Goldmann
- Preparative Macromolecular Chemistry, Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT) , Engesserstraße 18, 76128 Karlsruhe, Germany
- Institut für Biologische Grenzflächen, Karlsruhe Institute of Technology (KIT), Hermann-von-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology (QUT) , 2 George Street, Brisbane, Queensland 4000, Australia
| | - Cesar Rodriguez-Emmenegger
- Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic v.v.i. , Heyrovsky sq. 2, 162 06 Prague, Czech Republic
- DWI - Leibniz-Institute for Interactive Materials and Institute of Technical and Macromolecular Chemistry, RWTH Aachen University , Forckenbeckstraße 50, 52074 Aachen, Germany
| | - Christopher Barner-Kowollik
- Preparative Macromolecular Chemistry, Institut für Technische Chemie und Polymerchemie, Karlsruhe Institute of Technology (KIT) , Engesserstraße 18, 76128 Karlsruhe, Germany
- Institut für Biologische Grenzflächen, Karlsruhe Institute of Technology (KIT), Hermann-von-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology (QUT) , 2 George Street, Brisbane, Queensland 4000, Australia
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Tanaka M, Iwasaki Y. Photo-assisted generation of phospholipid polymer substrates for regiospecific protein conjugation and control of cell adhesion. Acta Biomater 2016; 40:54-61. [PMID: 26992370 DOI: 10.1016/j.actbio.2016.03.023] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Revised: 02/03/2016] [Accepted: 03/14/2016] [Indexed: 01/18/2023]
Abstract
UNLABELLED Novel photo-reactive phospholipid polymers were synthesized for use in the preparation of nonfouling surfaces with protein conjugation capacity. Poly[2-methacryloyloxyethyl phosphorylcholine (MPC)-ran-N-methacryloyl-(l)-tyrosinemethylester (MAT)] (P(MPC/MAT)) was synthesized by conventional radical polymerization, with the MAT units capable of being oxidized by 254nm UV irradiation. Because of this photo-oxidation, active species such as catechol and quinone were alternately generated in the copolymer. A silicon wafer was subjected to surface modification through spin coating of P(MPC/MAT) from an aqueous solution for use as a model substrate. The surface was then irradiated several times with UV light. The thickness of the polymer layers formed on the Si wafers was influenced by various parameters such as polymer concentration, UV irradiation time, and composition of the MAT units in P(MPC/MAT). Oxidized MAT units were advantageous not only for polymer adhesion to a solid surface but also for protein conjugation with the adhered polymers. The amount of protein immobilized on UV-irradiated P(MPC/MAT) was dependent on the composition of the MAT units in the polymer. Furthermore, it was confirmed that protein immobilization on the polymer occurred through the oxidized MAT units because the protein adsorption was significantly reduced upon blocking these units through pretreatment with glycine. Conjugation of regiospecific protein could also be achieved through the use of a photomask. In addition, nonspecific protein adsorption was reduced on the non-irradiated regions whose surface was covered with physisorbed P(MPC/MAT). Therefore, P(MPC/MAT) can be used in the preparation of nonfouling substrates, which enable micrometer-sized manipulation of proteins through photo-irradiation. Function of proteins immobilized on MPC copolymers was also confirmed by cell adhesion test. As such, photo-reactive MPC copolymers are suitable for performing controlled protein conjugation and preparing polymer-protein hybrid platforms for use in biomedical and diagnostic devices. STATEMENT OF SIGNIFICANCE Novel photo-reactive phospholipid polymers have been synthesized for immobilization on solid surfaces and regiospecific protein conjugation. Tyrosine residues embedded in 2-methacryloyloxyethyl phosphorylcholine (MPC) copolymers could be photo-oxidized, resulting in polymers able to form layers on a solid surface and conjugate with proteins. Moreover, nonspecific biofouling on the surface significantly reduced when the oxidized tyrosine units in the polymer layers were blocked. Upon UV irradiation through a photomask, the UV-exposed tyrosine units were selectively oxidized, forming the only specific regions in which protein conjugation could occur.
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Affiliation(s)
- Masako Tanaka
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamate-cho, Suita-shi, Osaka 564-8680, Japan
| | - Yasuhiko Iwasaki
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, 3-3-35 Yamate-cho, Suita-shi, Osaka 564-8680, Japan.
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14
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Wang H, Wu C, Wei Z, Li C, Liu Q. Surface chemistry, topology and desalination performance controlled positively charged NF membrane prepared by polydopamine-assisted graft of starburst PAMAM dendrimers. RSC Adv 2016. [DOI: 10.1039/c5ra25047a] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel and facile method was introduced to prepare positively charged nanofiltration membranes by PDA-assisted grafting of starburst PAMAM onto PES membranes surface.
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Affiliation(s)
- Heyun Wang
- School of Chemistry and Chemical Engineering
- Shihezi University
- Shihezi
- China
- Key Laboratory of Materials-Oriented Chemical Engineering of Xinjiang Uygur Autonomous Region
| | - Chunlin Wu
- School of Chemistry and Chemical Engineering
- Shihezi University
- Shihezi
- China
| | - Zhong Wei
- School of Chemistry and Chemical Engineering
- Shihezi University
- Shihezi
- China
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan
| | - Chuan Li
- School of Chemistry and Chemical Engineering
- Shihezi University
- Shihezi
- China
| | - Qiang Liu
- School of Chemistry and Chemical Engineering
- Shihezi University
- Shihezi
- China
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15
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Houée-Lévin C, Bobrowski K, Horakova L, Karademir B, Schöneich C, Davies MJ, Spickett CM. Exploring oxidative modifications of tyrosine: An update on mechanisms of formation, advances in analysis and biological consequences. Free Radic Res 2015; 49:347-73. [DOI: 10.3109/10715762.2015.1007968] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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16
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Wilchek M, Miron T. Mussel-inspired new approach for polymerization and cross-linking of peptides and proteins containing tyrosines by Fremy's salt oxidation. Bioconjug Chem 2015; 26:502-10. [PMID: 25692389 DOI: 10.1021/bc5006152] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Our objective was to develop a method mimicking the natural process of coherence in marine mollusks, by direct chemical conversion of protein tyrosine residues to DOPA-o-quinones, which consequently generates polymerization and cross-linking. Fremy's salt, (ON(SO3K)2, was used to convert tyrosine residues in peptides and proteins to reactive o-quinones. The conversion of tyrosines to DOPA-o-quinones, and their ability to polymerize or cross-link, was tested on tyramine, peptides, and proteins. The peptides tested were as follows: biotin-PEG4-tyramine (PEG-BT), and two decapeptides (identical to the repeating units comprising the mussel's adhesive protein). The proteins tested were as follows: bovine pancreatic ribonuclease A (RNase), lysozyme, IgG, avidin, and streptavidin. The oxidized peptides and proteins were all shown to incorporate oxygen atoms and undergo polymerization and cross-linking, depending on the availability of nucleophiles, mostly lysine amino groups of proteins. All the peptides and the noninteracting proteins such as RNase and lysozyme underwent homopolymerization upon Fremy's salt oxidation. When Fremy's salt oxidaized PEG-BT was mixed with the above proteins, it did not react with any of these proteins because PEG-BT underwent fast self-polymerization. Conversely, streptavidin or avidin cross-linked with PEG-BT after preincubation, thus showing that biorecognition is a prerequisite for cross-linking. Polymerization and cross-linking also occurred, following Fremy's salt oxidation of interacting proteins such as avidin and strepavidin with biotinyilated lysozyme or biotinylated RNase. This indicates that only proteins in very close proximity readily cross-link and polymerize via tyrosine residues. Attempts to convert DOPA-quinone to DOPA by reduction with sodium dithionite (Na2S2O4), was successful as far as small peptides were used. Fremy's salt oxidation can serve as an easy and useful tool to polymerize and cross-link proteins, for fabrication of biomaterials and to study protein-protein interactions.
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Affiliation(s)
- Meir Wilchek
- Department of Biological Chemistry, Wiezmann Institue of Science, Rehovot 76100, Israel
| | - Talia Miron
- Department of Biological Chemistry, Wiezmann Institue of Science, Rehovot 76100, Israel
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17
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Lee C, Lee SY. Mussel-inspired bolaamphiphile sticky self-assemblies for the preparation of magnetic nanoparticles. Colloids Surf B Biointerfaces 2015; 127:89-95. [DOI: 10.1016/j.colsurfb.2014.11.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Revised: 10/30/2014] [Accepted: 11/16/2014] [Indexed: 10/24/2022]
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18
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Yang J, Cohen Stuart MA, Kamperman M. Jack of all trades: versatile catechol crosslinking mechanisms. Chem Soc Rev 2014; 43:8271-98. [PMID: 25231624 DOI: 10.1039/c4cs00185k] [Citation(s) in RCA: 410] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Catechols play an important role in many natural systems. They are known to readily interact with both organic (e.g., amino acids) and inorganic (e.g., metal ions, metal oxides) compounds, thereby providing a powerful system for protein curing. Catechol crosslinked protein networks, such as sclerotized cuticle and byssal threads of the mussel, have been shown to exhibit excellent mechanical properties. A lot of effort has been devoted to mimicking the natural proteins using synthetic catechol-functionalized polymers. Despite the success in developing catechol-functionalized materials, the crosslinking chemistry of catechols is still a subject of debate. To develop materials with controlled and superior properties, a clear understanding of the crosslinking mechanism of catechols is of vital importance. This review describes the crosslinking pathways of catechol and derivatives in both natural and synthetic systems. We discuss existing pathways of catechol crosslinking and parameters that affect the catechol chemistry in detail. This overview will point towards a rational direction for further investigation of the complicated catechol chemistry.
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Affiliation(s)
- Juan Yang
- Laboratory of Physical Chemistry and Colloid Science, Wageningen University, Dreijenplein 6, 6703HB Wageningen, The Netherlands.
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19
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Roeser J, Alting NFA, Permentier HP, Bruins AP, Bischoff R. Boron-Doped Diamond Electrodes for the Electrochemical Oxidation and Cleavage of Peptides. Anal Chem 2013; 85:6626-32. [DOI: 10.1021/ac303795c] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Julien Roeser
- Analytical Biochemistry and Mass
Spectrometry Core
Facility, Department of Pharmacy, University of Groningen, A. Deusinglaan 1,
9713 AV Groningen, The Netherlands
| | - Niels F. A. Alting
- Analytical Biochemistry and Mass
Spectrometry Core
Facility, Department of Pharmacy, University of Groningen, A. Deusinglaan 1,
9713 AV Groningen, The Netherlands
| | - Hjalmar P. Permentier
- Analytical Biochemistry and Mass
Spectrometry Core
Facility, Department of Pharmacy, University of Groningen, A. Deusinglaan 1,
9713 AV Groningen, The Netherlands
| | - Andries P. Bruins
- Analytical Biochemistry and Mass
Spectrometry Core
Facility, Department of Pharmacy, University of Groningen, A. Deusinglaan 1,
9713 AV Groningen, The Netherlands
| | - Rainer Bischoff
- Analytical Biochemistry and Mass
Spectrometry Core
Facility, Department of Pharmacy, University of Groningen, A. Deusinglaan 1,
9713 AV Groningen, The Netherlands
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20
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Marcelo G, Muñoz-Bonilla A, Rodríguez-Hernández J, Fernández-García M. Hybrid materials achieved by polypeptide grafted magnetite nanoparticles through a dopamine biomimetic surface anchored initiator. Polym Chem 2013. [DOI: 10.1039/c2py20514a] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Nishida J, Kobayashi M, Takahara A. Gelation and adhesion behavior of mussel adhesive protein mimetic polymer. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.26487] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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22
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Jin R, Lou B, Lin C. Tyrosinase-mediated in situ
forming hydrogels from biodegradable chondroitin sulfate-tyramine conjugates. POLYM INT 2012. [DOI: 10.1002/pi.4306] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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23
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Structure, biosynthesis and possible function of tunichromes and related compounds. Comp Biochem Physiol B Biochem Mol Biol 2012; 163:1-25. [PMID: 22580032 DOI: 10.1016/j.cbpb.2012.05.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2012] [Revised: 05/02/2012] [Accepted: 05/03/2012] [Indexed: 01/26/2023]
Abstract
Several species of ascidians (phylum Chordata, subphylum Urochordata) contain a group of oligopeptides called "tunichromes" in their blood cells. These peptides have been implicated in (a) metal chelation and accumulation/sequestration of vanadium or iron; (b) crosslinking of structural fibers in tunic formation, (c) wound healing and (d) defense reactions. However, their biosynthesis, metabolism, and biological function remain largely un-elucidated due to their extreme instability and high reactivity. Tunichromes and related compounds uniquely possess dehydrodopamine moieties, all originating from post-translational modification of peptidyl tyrosine. It is conceivable that the presence of such novel post-translationally modified groups provide attributes that are crucial for their biological roles. Therefore, we examined the chemistry and reactivity of tunichromes in light of the available knowledge of the biochemistry of simple monomeric dehydro-N-acyldopamine units. Based on the reactivity of such simple compounds, the potential biological activities of tunichromes are predicted. Their possible biosynthetic route from peptidyl tyrosine is critically evaluated to provide a better basis for unraveling their biological functions. Prevalence of dehydro-N-acyldopamine units in different tunichromes, some marine antibiotic compounds, insect cuticular sclerotizing precursors and some bioadhesive marine proteins may aid in the de novo design of unique biomaterials with potential antibiotic/adhesive properties.
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24
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Zhang F, Liu S, Zhang Y, Wei Y, Xu J. Underwater bonding strength of marine mussel-inspired polymers containing DOPA-like units with amino groups. RSC Adv 2012. [DOI: 10.1039/c2ra21312e] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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25
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White JD, Wilker JJ. Underwater Bonding with Charged Polymer Mimics of Marine Mussel Adhesive Proteins. Macromolecules 2011. [DOI: 10.1021/ma201044x] [Citation(s) in RCA: 165] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- James D. White
- Department of Chemistry and ‡School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Jonathan J. Wilker
- Department of Chemistry and ‡School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States
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26
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Nicolai M, Gonçalves G, Natalio F, Humanes M. Biocatalytic formation of synthetic melanin: the role of vanadium haloperoxidases, L-DOPA and iodide. J Inorg Biochem 2011; 105:887-93. [PMID: 21507323 DOI: 10.1016/j.jinorgbio.2011.03.014] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2010] [Revised: 03/21/2011] [Accepted: 03/21/2011] [Indexed: 11/17/2022]
Abstract
The vanadium haloperoxidase (V-HPO) enzyme, extracted from the brown alga Laminaria saccharina, is able to catalyze the formation of a black precipitate, using as precursor the amino acid L-dopa in the presence of hydrogen peroxide and iodide, in one-pot synthesis. The L-dopa oxidation is a multistep reaction with a crucial role played by the iodide in the enzyme catalyzed peroxidative production of dopachrome, a well known intermediate in the synthesis of melanin. Dopachrome is then converted to a synthetic form of melanin through a polymerization reaction. Factors, such as buffer composition and pH, influence significantly the reaction first steps, but further steps of melanin production are hardly influenced. The biosynthetic melanin produced through the combination V-HPO/I/H(2)O(2), was characterized by several spectroscopic techniques (UV-vis and FT-IR) as well as XRD. Moreover, this biopolymer is light sensitive, decomposing into oligo- and monomeric units. Scanning electron microscopy (SEM) imaging showed different morphologies when compared with commercial available melanin. The biosynthetic production of melanin can have a wide range of applications from photosensitive cells to biomedicine with the advantage of being produced under eco-friendly and mild conditions.
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Affiliation(s)
- Marisa Nicolai
- Centro de Química e Bioquímica do Departamento de Química e Bioquímica da Faculdade de Ciências da Universidade de Lisboa, Campo Grande, Lisboa, Portugal
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27
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Black KC, Liu Z, Messersmith PB. Catechol Redox Induced Formation of Metal Core-Polymer Shell Nanoparticles. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2011; 23:1130-1135. [PMID: 21666825 PMCID: PMC3109993 DOI: 10.1021/cm1024487] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
A novel strategy was developed to synthesize polymer-coated metal nanoparticles (NPs) through reduction of metal cations with 3,4-dihydroxyphenylalanine (DOPA)-containing polyethylene glycol (PEG) polymers. Catechol redox chemistry was used to both synthesize metal NPs and simultaneously form a cross-linked shell of PEG polymers on their surfaces. DOPA reduced gold and silver cations into neutral metal atoms, producing reactive quinones that covalently cross-linked the PEG molecules around the surface of the NP. Importantly, these PEG-functionalized metal NPs were stable in physiological ionic strengths and under centrifugation, and hold broad appeal since they absorb and scatter light in aqueous solutions.
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Affiliation(s)
- Kvar C.L. Black
- Biomedical Engineering Department, Northwestern University, Evanston, Illinois 60208
- Chemistry of Life Processes Institute, Northwestern University, Evanston, Illinois 60208
| | - Zhongqiang Liu
- Biomedical Engineering Department, Northwestern University, Evanston, Illinois 60208
- Chemistry of Life Processes Institute, Northwestern University, Evanston, Illinois 60208
| | - Phillip B. Messersmith
- Biomedical Engineering Department, Northwestern University, Evanston, Illinois 60208
- Materials Science and Engineering Department, Northwestern University, Evanston, Illinois 60208
- Chemical and Biological Engineering Department, Northwestern University, Evanston, Illinois 60208
- Chemistry of Life Processes Institute, Northwestern University, Evanston, Illinois 60208
- Institute for Bionanotechnology in Medicine, Northwestern University, Evanston, Illinois 60208
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University, Evanston, Illinois 60208
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28
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Natalio F, André R, Pihan SA, Humanes M, Wever R, Tremel W. V2O5 nanowires with an intrinsic iodination activity leading to the formation of self-assembled melanin-like biopolymers. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm11811k] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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29
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Roeser J, Bischoff R, Bruins AP, Permentier HP. Oxidative protein labeling in mass-spectrometry-based proteomics. Anal Bioanal Chem 2010; 397:3441-55. [PMID: 20155254 PMCID: PMC2911539 DOI: 10.1007/s00216-010-3471-8] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2009] [Revised: 01/11/2010] [Accepted: 01/12/2010] [Indexed: 01/07/2023]
Abstract
Oxidation of proteins and peptides is a common phenomenon, and can be employed as a labeling technique for mass-spectrometry-based proteomics. Nonspecific oxidative labeling methods can modify almost any amino acid residue in a protein or only surface-exposed regions. Specific agents may label reactive functional groups in amino acids, primarily cysteine, methionine, tyrosine, and tryptophan. Nonspecific radical intermediates (reactive oxygen, nitrogen, or halogen species) can be produced by chemical, photochemical, electrochemical, or enzymatic methods. More targeted oxidation can be achieved by chemical reagents but also by direct electrochemical oxidation, which opens the way to instrumental labeling methods. Oxidative labeling of amino acids in the context of liquid chromatography(LC)-mass spectrometry (MS) based proteomics allows for differential LC separation, improved MS ionization, and label-specific fragmentation and detection. Oxidation of proteins can create new reactive groups which are useful for secondary, more conventional derivatization reactions with, e.g., fluorescent labels. This review summarizes reactions of oxidizing agents with peptides and proteins, the corresponding methodologies and instrumentation, and the major, innovative applications of oxidative protein labeling described in selected literature from the last decade.
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Affiliation(s)
- Julien Roeser
- Analytical Biochemistry and Mass Spectrometry Core Facility, Department of Pharmacy, University of Groningen, A. Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Rainer Bischoff
- Analytical Biochemistry and Mass Spectrometry Core Facility, Department of Pharmacy, University of Groningen, A. Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Andries P. Bruins
- Analytical Biochemistry and Mass Spectrometry Core Facility, Department of Pharmacy, University of Groningen, A. Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Hjalmar P. Permentier
- Analytical Biochemistry and Mass Spectrometry Core Facility, Department of Pharmacy, University of Groningen, A. Deusinglaan 1, 9713 AV Groningen, The Netherlands
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30
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Samyn P, Rühe J, Biesalski M. Polymerizable biomimetic vesicles with controlled local presentation of adhesive functional DOPA groups. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:8573-8581. [PMID: 20297782 DOI: 10.1021/la904629a] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Inspired by strong adhesive properties of mussel footprint proteins, which are largely governed by the presence of dihydroxy-phenylalanine (DOPA) amino acid moieties, we present a novel approach for presenting DOPA groups in a very defined way in order to modulate the adhesion between artificial interfaces. To this end, linear peptide amphiphiles are synthesized with attached DOPA functional groups and a polymerizable diacetylenic tail. The obtained amphiphiles can be coassembled with matrix amphiphiles into vesicles, which can be subsequently stabilized through UV-light-induced solid-state polymerization. Depending on the molar ratio of matrix and adhesive amphiphiles, the vesicles self-assemble into spherical, fibrilar, or planar nanostructures. The adhesive properties of the surface-adsorbed vesicles are evaluated by drop casting them onto a planar solid substrate and performing macroscopic shear tests in contact with a similar substrate. The shear forces are investigated as a function of substrate chemistry, vesicle polymerization conditions, vesicle concentration, and number of adhesive DOPA groups in the interface. Substrate adhesion is enhanced by surface-confined vesicles and greatly depends on the presentation of DOPA groups in the adhesive interface, either as a mono- or multilayer conformation. Because the adhesive structures can be transferred onto substrates from low-viscosity aqueous solution, they may serve as interesting nanoscale gluing pads in future applications, where the high viscosity of polymer-based glues renders the controlled formation of nanoscale adhesion pads difficult.
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Affiliation(s)
- Pieter Samyn
- University of Freiburg, Department for Microsystems Engineering (IMTEK), Chemistry and Physics of Interfaces, D-79110 Freiburg, Germany
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31
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Cai M, Sugumaran M, Robinson WE. The crosslinking and antimicrobial properties of tunichrome. Comp Biochem Physiol B Biochem Mol Biol 2008; 151:110-7. [DOI: 10.1016/j.cbpb.2008.06.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2008] [Revised: 06/02/2008] [Accepted: 06/07/2008] [Indexed: 10/22/2022]
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32
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Querol M, Bennett DG, Sotak C, Kang HW, Bogdanov A. A paramagnetic contrast agent for detecting tyrosinase activity. Chembiochem 2008; 8:1637-41. [PMID: 17694521 DOI: 10.1002/cbic.200700157] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Manuel Querol
- Department of Radiology, University of Massachusetts Medical School, 55 Lake Avenue North, Worcester, MA 01655, USA
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33
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Li X, Pennington J, Stobaugh JF, Schöneich C. Synthesis of sulfonamide- and sulfonyl-phenylboronic acid-modified silica phases for boronate affinity chromatography at physiological pH. Anal Biochem 2007; 372:227-36. [PMID: 17945176 DOI: 10.1016/j.ab.2007.09.001] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2007] [Revised: 09/01/2007] [Accepted: 09/04/2007] [Indexed: 10/22/2022]
Abstract
Two new types of boronate affinity solid phases were synthesized and characterized. The materials were prepared by silylation of porous silica gel with monochlorosilane derivatives containing synthetic sulfonyl- and sulfonamide-substituted phenylboronic acids. The new solid phases were evaluated for boronate affinity chromatography with aryl and alkyl cis-diol compounds and were found to be suitable for the retention of cis-diols under acidic conditions. Significant correlations between the retention factor (K) and the pH of the mobile phase demonstrate that the binding of cis-diols to the solid phases is best rationalized by chelation. Based on the lower pKa, caused by the electron-withdrawing effects of the sulfonyl and sulfonamide groups, these media display an enhanced affinity for cis-diols as compared with unsubstituted phenylboronic acid. Using isocratic elution, a mixture of various biologically relevant l-tyrosines, l-DOPA, and several catecholamines were resolved with a mobile phase composed of 0.05M phosphate buffer (pH 5.5). Mono-, di-, and triphosphates of adenosine were also separated at pH 6.0. Hence, the new boronate solid phase offers efficient affinity separation and purification of cis-diol-containing molecules under rather mild pH conditions.
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Affiliation(s)
- Xiaobao Li
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, KS 66047, USA
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34
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Liu B, Burdine L, Kodadek T. Chemistry of periodate-mediated cross-linking of 3,4-dihydroxylphenylalanine-containing molecules to proteins. J Am Chem Soc 2007; 128:15228-35. [PMID: 17117875 PMCID: PMC2568988 DOI: 10.1021/ja065794h] [Citation(s) in RCA: 109] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Chemical cross-linking is an attractive approach to map peptide-protein and protein-protein complexes. Previously, we explored 3,4-dihydroxylphenylalanine (DOPA) as a protein cross-linking agent upon periodate oxidation (Burdine, L.; Gillette, T. G.; Lin, H.-J.; Kodadek, T. J. Am. Chem. Soc. 2004, 126, 11442-11443). We report here a study on the chemistry of DOPA-protein cross-linking. First, using a peptide nucleic acid templated system, we identified the alpha-amino, epsilon-amino of Lys, imidazole of His, and thiol of Cys as functional groups capable of attacking DOPA ortho-quinone. Second, we demonstrated that periodate-induced DOPA-protein cross-linking could be carried out efficiently at neutral pH in the presence of excess aliphatic 1,2-diols such as ethylene glycol, lactose, and adenosine triphosphate. This result indicated that DOPA-protein cross-linking and 1,2-diol oxidative cleavage proceed via different mechanisms and that carbohydrates will not interfere with this process when carried out in crude cell extracts or on intact cells.
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Vandersmissen T, Hoste B, Baggerman G, Huybrechts J, De Loof A, Chaltin P, Proost P, Breuer M. Degradation profile of [His7]-corazonin in the hemolymph of the desert locust Schistocerca gregaria. Peptides 2006; 27:539-48. [PMID: 16309794 DOI: 10.1016/j.peptides.2005.08.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2005] [Accepted: 08/16/2005] [Indexed: 11/30/2022]
Abstract
Degradation of the neuropeptide [His7]-corazonin, a key hormone in phase transition in locusts was studied using [3H][His7]-corazonin, RP-HPLC and mass spectrometry. After 4h incubation, 50 and 75% of [His7]-corazonin could still be found in hemolymph of gregarious and solitarious Schistocerca gregaria, respectively. Under in vivo conditions the half-life was 30 min. These results are in contrast to many other neuropeptides that usually have half lives of a few minutes. The peptide is cleaved first by an endopeptidase, either just before or after the Tyr residue at position 5. Next, the C-terminal degradation fragments are further degraded by a dipeptidyl-peptidase, whereas the N-terminal fragments are further broken down one amino acid at a time. In addition, [Dopa5][His7]-corazonin was detected. Upon synthesis, this unexpected molecular modification turned out to be biologically active in bringing about cuticular melanization.
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Affiliation(s)
- Tim Vandersmissen
- Laboratory of Developmental Physiology, Genomics and Proteomics, Zoological Institute, K.U. Leuven, B-3000 Leuven, Belgium.
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Yi H, Wu LQ, Bentley WE, Ghodssi R, Rubloff GW, Culver JN, Payne GF. Biofabrication with Chitosan. Biomacromolecules 2005; 6:2881-94. [PMID: 16283704 DOI: 10.1021/bm050410l] [Citation(s) in RCA: 438] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The traditional motivation for integrating biological components into microfabricated devices has been to create biosensors that meld the molecular recognition capabilities of biology with the signal processing capabilities of electronic devices. However, a different motivation is emerging; biological components are being explored to radically change how fabrication is achieved at the micro- and nanoscales. Here we review biofabrication, the use of biological materials for fabrication, and focus on three specific biofabrication approaches: directed assembly, where localized external stimuli are employed to guide assembly; enzymatic assembly, where selective biocatalysts are enlisted to build macromolecular structure; and self-assembly, where information internal to the biological material guides its own assembly. Also reviewed are recent results with the aminopolysaccharide chitosan, a material that offers a combination of properties uniquely suited for biofabrication. In particular, chitosan can be directed to assemble in response to locally applied electrical signals, and the chitosan backbone provides sites that can be employed for the assembly of proteins, nucleic acids, and virus particles.
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Affiliation(s)
- Hyunmin Yi
- Center for Biosystems Research, University of Maryland Biotechnology Institute, 5115 Plant Sciences Building, College Park, Maryland 20742, USA
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Aberg CM, Chen T, Olumide A, Raghavan SR, Payne GF. Enzymatic grafting of peptides from casein hydrolysate to chitosan. Potential for value-added byproducts from food-processing wastes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2004; 52:788-793. [PMID: 14969532 DOI: 10.1021/jf034626v] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Tyrosinase was used to initiate the grafting of peptides onto the amine-containing polysaccharide chitosan. Chemical evidence for covalent grafting was obtained from electrospray mass spectrometry for products formed from reactions with glucosamine (the monomeric unit of chitosan) and the model dipeptide Tyr-Ala. When this model dipeptide was incubated with tyrosinase and chitosan, there was a marked increase in the viscosity of the solution. This viscosity increase provides physical evidence that tyrosinase can initiate peptide grafting onto the chitosan backbone. A peptide-modified chitosan derivative was generated by reacting chitosan (0.32 w/v%) with acid-hydrolyzed casein (0.5 w/v %) using tyrosinase. After reaction, the peptide-modified chitosan was partially purified and dissolved in an aqueous acetic acid solution. Low concentrations of this peptide-modified chitosan were observed to confer viscoelastic properties to the solutions. Specifically they conferred high viscosities and shear thinning properties to the solutions, and solutions containing only 1 w/w % of the peptide-modified chitosan behaved as weak gels. Thus, tyrosinase provides a simple and safe way to convert food-processing byproducts into environmentally friendly products that offer useful functional properties. The selectivity of tyrosinase and the relatively high reactivity of chitosan's amines allow grafting to be performed with uncharacterized peptide mixtures present in crude hydrolysates.
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Affiliation(s)
- Christopher M Aberg
- Center for Biosystems Research, 5115 Plant Sciences Building, University of Maryland Biotechnology Institute, College Park, Maryland 20742, USA
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Chen T, Embree HD, Brown EM, Taylor MM, Payne GF. Enzyme-catalyzed gel formation of gelatin and chitosan: potential for in situ applications. Biomaterials 2003; 24:2831-41. [PMID: 12742721 DOI: 10.1016/s0142-9612(03)00096-6] [Citation(s) in RCA: 221] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
We compared the ability of two enzymes to catalyze the formation of gels from solutions of gelatin and chitosan. A microbial transglutaminase, currently under investigation for food applications, was observed to catalyze the formation of strong and permanent gels from gelatin solutions. Chitosan was not required for transglutaminase-catalyzed gel formation, although gel formation was faster, and the resulting gels were stronger if reactions were performed in the presence of this polysaccharide. Consistent with transglutaminase's ability to covalently crosslink proteins, we observed that the transglutaminase-catalyzed gelatin-chitosan gels lost the ability to undergo thermally reversible transitions (i.e. sol-gel transitions) characteristic of gelatin. Mushroom tyrosinase was also observed to catalyze gel formation for gelatin-chitosan blends. In contrast to transglutaminase, tyrosinase-catalyzed reactions did not lead to gel formation unless chitosan was present (i.e. chitosan is required for tyrosinase-catalyzed gel formation). Tyrosinase-catalyzed gelatin-chitosan gels were observed to be considerably weaker than transglutaminase-catalyzed gels. Tyrosinase-catalyzed gels were strengthened by cooling below gelatin's gel-point, which suggests that gelatin's ability to undergo a collagen-like coil-to-helix transition is unaffected by tyrosinase-catalyzed reactions. Further, tyrosinase-catalyzed gelatin-chitosan gels were transient as their strength (i.e. elastic modulus) peaked at about 5h after which the gels broke spontaneously over the course of 2 days. The strength of both transglutaminase-catalyzed and tyrosinase-catalyzed gels could be adjusted by altering the gelatin and chitosan compositions. Potential applications of these gels for in situ applications are discussed.
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Affiliation(s)
- Tianhong Chen
- Center for Biosystems Research, University of Maryland Biotechnology Institute, 5115 Plant Sciences Building, College Park, MD 20742, USA
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Permentier HP, Jurva U, Barroso B, Bruins AP. Electrochemical oxidation and cleavage of peptides analyzed with on-line mass spectrometric detection. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2003; 17:1585-1592. [PMID: 12845584 DOI: 10.1002/rcm.1090] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
An on-line electrochemistry/electrospray mass spectrometry system (EC/MS) is described that allows fast analysis of the oxidation products of peptides. A range of peptides was oxidized in an electrochemical cell by application of a potential ramp from 0 to 1.5 V during passage of the sample. Electrochemical oxidation of peptides was found to occur readily when tyrosine was present. Tyrosine was found to be oxidized between 0.5 and 1.0 V to various oxidation products, including peptide fragments formed by hydrolysis at the C-terminal side of tyrosine. The results confirm earlier knowledge on the mechanisms and reaction products of chemical and electrochemical peptide oxidation. Methionine residues are also readily oxidized, but do not induce peptide cleavage. At potentials higher than about 1.1 V, additional oxidation products were observed in some peptides, including loss of 28 Da from the C-terminus and dimerization. The tyrosine-specific cleavage reaction suggests a possible use of the EC/MS system as an on-line protein digestion and peptide mapping system. In addition, the system can be used to distinguish phosphorylated from unphosphorylated tyrosine residues. Four forms of the ZAP-70 peptide ALGADDSYYTAR with both, either or neither tyrosine phosphorylated were subjected to a 0-1.5 V potential ramp. Oxidation of, and cleavage adjacent to, tyrosine was observed exclusively at unphosphorylated tyrosine residues.
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Affiliation(s)
- Hjalmar P Permentier
- University of Groningen, Centre for Pharmacy, A. Deusinglaan 1, 9713 AV Groningen, The Netherlands
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