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Dhanabalan AK, Kumar P, Vasudevan S, Chworos A, Velmurugan D. Identification of a novel drug molecule for neurodegenerative disease from marine algae through in-silico analysis. J Biomol Struct Dyn 2024:1-10. [PMID: 38456260 DOI: 10.1080/07391102.2024.2322624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 02/16/2024] [Indexed: 03/09/2024]
Abstract
Cognitive functions are lost due to the rapid hydrolysis of acetylcholine including Acetylcholinesterase (AChE) and Butyrylcholinesterase (BChE). Marine algae-derived compounds were reported for their neuroprotective activities and hence they can be utilised for treating neurodegenerative ailments like Alzheimer's Disease and Parkinson's Disease which are due to the loss of cognitive functions. Major attention is currently paid to seaweeds due to their health benefits and high nutritional values. Sea weeds are of a rich sense of natural bioactive compounds which antioxidants, pharmaceutical compounds, flavonoids and alkaloids. They also contain a high amount of vitamins A, D, E, C and Ca, K, Mg and Fe. Regular consumption of a marine algae-based diet may boost immunities. In searching for natural cholinesterase inhibitors, the present study is focussed on some marine bioactive compounds reported from brown, red and green algae. Molecular docking studies have been carried out along with molecular dynamics simulations studies and binding energy calculations resulting in three best bioactive compounds when AChE is used as the target. The results are compared with cocrystal studies. Two best compounds, namely, Diphlorethohydroxycarmalol and Phlorofucofuroeckol from the brown seaweeds are identified as the potential lead compounds for neurodegenerative diseases, Alzheimer's and Parkinson's.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
| | - Praveen Kumar
- Research and Development Cell, AMET University, Kanathur, Tamil Nadu, India
| | - Saranya Vasudevan
- Department of Civil Engineering and Architecture, University of Pavia, Pavia, Italy
| | - Arkadiusz Chworos
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies Polish Academy of Sciences, Lodz, Poland
| | - Devadasan Velmurugan
- Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
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2
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Das S, Strachanowska M, Wadowski P, Juszczak M, Tokarz P, Kosińska A, Palusiak M, Rybarczyk-Pirek AJ, Wzgarda-Raj K, Vasudevan S, Chworos A, Woźniak K, Rudolf B. Synthesis, anticancer activity, and molecular docking of half-sandwich iron(II) cyclopentadienyl complexes with maleimide and phosphine or phosphite ligands. Sci Rep 2024; 14:5634. [PMID: 38454122 PMCID: PMC10920834 DOI: 10.1038/s41598-024-56339-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 03/05/2024] [Indexed: 03/09/2024] Open
Abstract
In these studies, we designed and investigated the potential anticancer activity of five iron(II) cyclopentadienyl complexes bearing different phosphine and phosphite ligands. All complexes were characterized with spectroscopic analysis viz. NMR, FT-IR, ESI-MS, UV-Vis, fluorescence, XRD (for four complexes) and elemental analyses. For biological studies, we used three types of cells-normal peripheral blood mononuclear (PBM) cells, leukemic HL-60 cells and non-small-cell lung cancer A549 cells. We evaluated cell viability and DNA damage after cell incubation with these complexes. We observed that all iron(II) complexes were more cytotoxic for HL-60 cells than for A549 cells. The complex CpFe(CO)(P(OPh)3)(η1-N-maleimidato) 3b was the most cytotoxic with IC50 = 9.09 µM in HL-60 cells, IC50 = 19.16 µM in A549 and IC50 = 5.80 µM in PBM cells. The complex CpFe(CO)(P(Fu)3)(η1-N-maleimidato) 2b was cytotoxic only for both cancer cell lines, with IC50 = 10.03 µM in HL-60 cells and IC50 = 73.54 µM in A549 cells. We also found the genotoxic potential of the complex 2b in both types of cancer cells. However, the complex CpFe(CO)2(η1-N-maleimidato) 1 which we studied previously, was much more genotoxic than complex 2b, especially for A549 cells. The plasmid relaxation assay showed that iron(II) complexes do not induce strand breaks in fully paired ds-DNA. The DNA titration experiment showed no intercalation of complex 2b into DNA. Molecular docking revealed however that complexes CpFe(CO)(PPh3) (η1-N-maleimidato) 2a, 2b, 3b and CpFe(CO)(P(OiPr)3)(η1-N-maleimidato) 3c have the greatest potential to bind to mismatched DNA. Our studies demonstrated that the iron(II) complex 1 and 2b are the most interesting compounds in terms of selective cytotoxic action against cancer cells. However, the cellular mechanism of their anticancer activity requires further research.
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Affiliation(s)
- Sujoy Das
- Department of Organic Chemistry, University of Lodz, Faculty of Chemistry, Tamka 12, 91-403, Lodz, Poland
| | - Marcelina Strachanowska
- Department of Molecular Genetics, University of Lodz, Faculty of Biology and Environmental Protection, Pomorska 141/143, 90-236, Lodz, Poland
| | - Piotr Wadowski
- Department of Molecular Genetics, University of Lodz, Faculty of Biology and Environmental Protection, Pomorska 141/143, 90-236, Lodz, Poland
| | - Michał Juszczak
- Department of Molecular Genetics, University of Lodz, Faculty of Biology and Environmental Protection, Pomorska 141/143, 90-236, Lodz, Poland
| | - Paulina Tokarz
- Department of Molecular Genetics, University of Lodz, Faculty of Biology and Environmental Protection, Pomorska 141/143, 90-236, Lodz, Poland
| | - Aneta Kosińska
- Department of Organic Chemistry, University of Lodz, Faculty of Chemistry, Tamka 12, 91-403, Lodz, Poland
| | - Marcin Palusiak
- Department of Physical Chemistry, University of Lodz, Faculty of Chemistry, Pomorska 163/165, 90-236, Lodz, Poland
| | - Agnieszka J Rybarczyk-Pirek
- Department of Physical Chemistry, University of Lodz, Faculty of Chemistry, Pomorska 163/165, 90-236, Lodz, Poland
| | - Kinga Wzgarda-Raj
- Department of Physical Chemistry, University of Lodz, Faculty of Chemistry, Pomorska 163/165, 90-236, Lodz, Poland
| | - Saranya Vasudevan
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Lodz, Poland
| | - Arkadiusz Chworos
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Lodz, Poland
| | - Katarzyna Woźniak
- Department of Molecular Genetics, University of Lodz, Faculty of Biology and Environmental Protection, Pomorska 141/143, 90-236, Lodz, Poland.
| | - Bogna Rudolf
- Department of Organic Chemistry, University of Lodz, Faculty of Chemistry, Tamka 12, 91-403, Lodz, Poland.
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3
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Pawlowska R, Graczyk A, Radzikowska-Cieciura E, Wielgus E, Madaj R, Chworos A. Substrate Specificity of T7 RNA Polymerase toward Hypophosphoric Analogues of ATP. ACS Omega 2024; 9:9348-9356. [PMID: 38434886 PMCID: PMC10905585 DOI: 10.1021/acsomega.3c08635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 01/10/2024] [Accepted: 01/29/2024] [Indexed: 03/05/2024]
Abstract
Modified nucleotides are commonly used in molecular biology as substrates or inhibitors for several enzymes but also as tools for the synthesis of modified DNA and RNA fragments. Introduction of modification into RNA, such as phosphorothioate (PS), has been demonstrated to provide higher stability, more effective transport, and enhanced activity of potential therapeutic molecules. Hence, in order to achieve widespread use of RNA molecules in medicine, it is crucial to continuously refine the techniques that enable the effective introduction of modifications into RNA strands. Numerous analogues of nucleotides have been tested for their substrate activity with the T7 RNA polymerase and therefore in the context of their utility for use in in vitro transcription. In the present studies, the substrate preferences of the T7 RNA polymerase toward β,γ-hypophospho-modified ATP derivatives for the synthesis of unmodified RNA and phosphorothioate RNA (PS) are presented. The performed studies revealed the stereoselectivity of this enzyme for α-thio-β,γ-hypo-ATP derivatives, similar to that for α-thio-ATP. Additionally, it is demonstrated herein that hypodiphosphoric acid may inhibit in vitro transcription catalyzed by T7 RNA polymerase.
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Affiliation(s)
- Roza Pawlowska
- Department
of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Anna Graczyk
- Department
of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Ewa Radzikowska-Cieciura
- Department
of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Ewelina Wielgus
- Department
of Structural Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Rafal Madaj
- Department
of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Arkadiusz Chworos
- Department
of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
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4
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Szustak M, Korkus E, Madaj R, Chworos A, Dąbrowski G, Czaplicki S, Tabandeh E, Maciejewska G, Koziołkiewicz M, Konopka I, Gliszczyńska A, Gendaszewska-Darmach E. Lysophosphatidylcholines Enriched with cis and trans Palmitoleic Acid Regulate Insulin Secretion via GPR119 Receptor. ACS Med Chem Lett 2024; 15:197-204. [PMID: 38352825 PMCID: PMC10860191 DOI: 10.1021/acsmedchemlett.3c00263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 12/17/2023] [Accepted: 12/21/2023] [Indexed: 02/16/2024] Open
Abstract
Among lipids, lysophosphatidylcholines (LPCs) with various fatty acyl chains have been identified as potential agonists of G protein-coupled receptors (GPCRs). Recently, targeting GPCRs has been switched to diabetes and obesity. Concomitantly, our last findings indicate the insulin secretagogue properties of cis and trans palmitoleic acid (16:1, n-7) resulting from GPCR activation, however, associated with different signaling pathways. We here report the synthesis of LPCs bearing two geometrical isomers of palmitoleic acids and investigation of their impact on human pancreatic β cells viability, insulin secretion, and activation of four GPCRs previously demonstrated to be targeted by free fatty acids and LPCs. Moreover, molecular modeling was exploited to investigate the probable binding sites of tested ligands and calculate their affinity toward GPR40, GPR55, GPR119, and GPR120 receptors.
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Affiliation(s)
- Marcin Szustak
- Faculty
of Biotechnology and Food Sciences, Institute of Molecular and Industrial
Biotechnology, Lodz University of Technology, Stefanowskiego 2/22, 90-537 Lodz, Poland
| | - Eliza Korkus
- Faculty
of Biotechnology and Food Sciences, Institute of Molecular and Industrial
Biotechnology, Lodz University of Technology, Stefanowskiego 2/22, 90-537 Lodz, Poland
| | - Rafal Madaj
- Division
of Bioorganic Chemistry Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza, 112, 90-363 Lodz, Poland
- Institute
of Evolutionary Biology, Faculty of Biology, Biological and Chemical
Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Arkadiusz Chworos
- Division
of Bioorganic Chemistry Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza, 112, 90-363 Lodz, Poland
| | - Grzegorz Dąbrowski
- Faculty
of Food Sciences, Chair of Plant Food Chemistry and Processing, University of Warmia and Mazury in Olsztyn, Pl. Cieszyński 1, 10-957 Olsztyn, Poland
| | - Sylwester Czaplicki
- Faculty
of Food Sciences, Chair of Plant Food Chemistry and Processing, University of Warmia and Mazury in Olsztyn, Pl. Cieszyński 1, 10-957 Olsztyn, Poland
| | - Erfan Tabandeh
- Faculty
of Biotechnology and Food Sciences, Institute of Molecular and Industrial
Biotechnology, Lodz University of Technology, Stefanowskiego 2/22, 90-537 Lodz, Poland
| | - Gabriela Maciejewska
- Central
Laboatory of the Instrumental Analysis, Wroclaw University of Technology, Wybrzeze Wyspianskiego 27, Wroclaw 50-370, Poland
| | - Maria Koziołkiewicz
- Faculty
of Biotechnology and Food Sciences, Institute of Molecular and Industrial
Biotechnology, Lodz University of Technology, Stefanowskiego 2/22, 90-537 Lodz, Poland
| | - Iwona Konopka
- Faculty
of Food Sciences, Chair of Plant Food Chemistry and Processing, University of Warmia and Mazury in Olsztyn, Pl. Cieszyński 1, 10-957 Olsztyn, Poland
| | - Anna Gliszczyńska
- Department
of Food Chemistry and Biocatalysis, Wroclaw
University of Environmental and Life Sciences, Norwida 25, 50-375 Wrocław, Poland
| | - Edyta Gendaszewska-Darmach
- Faculty
of Biotechnology and Food Sciences, Institute of Molecular and Industrial
Biotechnology, Lodz University of Technology, Stefanowskiego 2/22, 90-537 Lodz, Poland
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5
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Madaj R, Gostyński B, Chworos A, Cypryk M. Novichok Nerve Agents as Inhibitors of Acetylcholinesterase-In Silico Study of Their Non-Covalent Binding Affinity. Molecules 2024; 29:338. [PMID: 38257251 PMCID: PMC10819560 DOI: 10.3390/molecules29020338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 12/27/2023] [Accepted: 01/08/2024] [Indexed: 01/24/2024] Open
Abstract
In silico studies were performed to assess the binding affinity of selected organophosphorus compounds toward the acetylcholinesterase enzyme (AChE). Quantum mechanical calculations, molecular docking, and molecular dynamics (MD) with molecular mechanics Generalized-Born surface area (MM/GBSA) were applied to assess quantitatively differences between the binding energies of acetylcholine (ACh; the natural agonist of AChE) and neurotoxic, synthetic correlatives (so-called "Novichoks", and selected compounds from the G- and V-series). Several additional quantitative descriptors like root-mean-square fluctuation (RMSF) and the solvent accessible surface area (SASA) were briefly discussed to give-to the best of our knowledge-the first quantitative in silico description of AChE-Novichok non-covalent binding process and thus facilitate the search for an efficient and effective treatment for Novichok intoxication and in a broader sense-intoxication with other warfare nerve agents as well.
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Affiliation(s)
- Rafal Madaj
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland; (R.M.); (A.C.)
- Institute of Evolutionary Biology, Faculty of Biology, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Bartłomiej Gostyński
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland; (R.M.); (A.C.)
| | - Arkadiusz Chworos
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland; (R.M.); (A.C.)
| | - Marek Cypryk
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland; (R.M.); (A.C.)
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6
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Korkus E, Szustak M, Madaj R, Chworos A, Drzazga A, Koziołkiewicz M, Dąbrowski G, Czaplicki S, Konopka I, Gendaszewska-Darmach E. Trans-palmitoleic acid, a dairy fat biomarker, stimulates insulin secretion and activates G protein-coupled receptors with a different mechanism from the cis isomer. Food Funct 2023. [PMID: 37368452 DOI: 10.1039/d2fo03412c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
Dietary trans-palmitoleic acid (trans 16:1n-7, tPOA), a biomarker for high-fat dairy product intake, has been associated with a lower risk of type 2 diabetes mellitus (T2DM) in some cross-sectional and prospective epidemiological studies. Here, we investigated the insulin secretion-promoting activity of tPOA and compared them with the effects evoked by the cis-POA isomer (cPOA), an endogenous lipokine biosynthesized in the liver and adipose tissue, and found in some natural food sources. The debate about the positive and negative relationships of those two POA isomers with metabolic risk factors and the underlying mechanisms is still going on. Therefore, we examined the potency of both POA isomers to potentiate insulin secretion in murine and human pancreatic β cell lines. We also investigated whether POA isomers activate G protein-coupled receptors proposed as potential targets for T2DM treatment. We show that tPOA and cPOA augment glucose-stimulated insulin secretion (GSIS) to a similar extent; however, their insulin secretagogue activity is associated with different signaling pathways. We also performed ligand docking and molecular dynamics simulations to predict the preferred orientation of POA isomers and the strength of association between those two fatty acids and GPR40, GPR55, GPR119, and GPR120 receptors. Overall, this study provides insight into the bioactivity of tPOA and cPOA toward selected GPCR functions, indicating them as targets responsible for the insulin secretagogue action of POA isomers. It reveals that both tPOA and cPOA may promote insulin secretion and subsequently regulate glucose homeostasis.
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Affiliation(s)
- Eliza Korkus
- Faculty of Biotechnology and Food Sciences, Institute of Molecular and Industrial Biotechnology, Lodz University of Technology, Stefanowskiego 2/22, 90-537 Lodz, Poland.
| | - Marcin Szustak
- Faculty of Biotechnology and Food Sciences, Institute of Molecular and Industrial Biotechnology, Lodz University of Technology, Stefanowskiego 2/22, 90-537 Lodz, Poland.
| | - Rafal Madaj
- Division of Bioorganic Chemistry Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza, 112, 90-363 Lodz, Poland
- Institute of Evolutionary Biology, Faculty of Biology, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089, Warsaw, Poland
| | - Arkadiusz Chworos
- Division of Bioorganic Chemistry Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza, 112, 90-363 Lodz, Poland
| | - Anna Drzazga
- Faculty of Biotechnology and Food Sciences, Institute of Molecular and Industrial Biotechnology, Lodz University of Technology, Stefanowskiego 2/22, 90-537 Lodz, Poland.
| | - Maria Koziołkiewicz
- Faculty of Biotechnology and Food Sciences, Institute of Molecular and Industrial Biotechnology, Lodz University of Technology, Stefanowskiego 2/22, 90-537 Lodz, Poland.
| | - Grzegorz Dąbrowski
- Faculty of Food Sciences, Chair of Plant Food Chemistry and Processing, University of Warmia and Mazury in Olsztyn, Pl. Cieszyński 1, 10-957 Olsztyn, Poland
| | - Sylwester Czaplicki
- Faculty of Food Sciences, Chair of Plant Food Chemistry and Processing, University of Warmia and Mazury in Olsztyn, Pl. Cieszyński 1, 10-957 Olsztyn, Poland
| | - Iwona Konopka
- Faculty of Food Sciences, Chair of Plant Food Chemistry and Processing, University of Warmia and Mazury in Olsztyn, Pl. Cieszyński 1, 10-957 Olsztyn, Poland
| | - Edyta Gendaszewska-Darmach
- Faculty of Biotechnology and Food Sciences, Institute of Molecular and Industrial Biotechnology, Lodz University of Technology, Stefanowskiego 2/22, 90-537 Lodz, Poland.
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Juszczak M, Das S, Kosińska A, Rybarczyk-Pirek AJ, Wzgarda-Raj K, Tokarz P, Vasudevan S, Chworos A, Woźniak K, Rudolf B. Piano-stool ruthenium(II) complexes with maleimide and phosphine or phosphite ligands: synthesis and activity against normal and cancer cells. Dalton Trans 2023; 52:4237-4250. [PMID: 36897334 DOI: 10.1039/d2dt04083b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
Abstract
In these studies, we designed and investigated cyto- and genotoxic potential of five ruthenium cyclopentadienyl complexes bearing different phosphine and phosphite ligands. All of the complexes were characterized with spectroscopic analysis (NMR, FT-IR, ESI-MS, UV-vis, fluorescence and XRD (for two compounds)). For biological studies, we used three types of cells - normal peripheral blood mononuclear (PBM) cells, leukemic HL-60 cells and doxorubicin-resistance HL-60 cells (HL-60/DR). We compared the results obtained with those obtained for the complex with maleimide ligand CpRu(CO)2(η1-N-maleimidato) 1, which we had previously reported. We observed that the complexes CpRu(CO)(PPh3)(η1-N-maleimidato) 2a and CpRu(CO)(P(OEt)3)(η1-N-maleimidato) 3a were the most cytotoxic for HL-60 cells and non-cytotoxic for normal PBM cells. However, complex 1 was more cytotoxic for HL-60 cells than complexes 2a and 3a (IC50 = 6.39 μM vs. IC50 = 21.48 μM and IC50 = 12.25 μM, respectively). The complex CpRu(CO)(P(OPh)3)(η1-N-maleimidato) 3b is the most cytotoxic for HL-60/DR cells (IC50 = 104.35 μM). We found the genotoxic potential of complexes 2a and 3a only in HL-60 cells. These complexes also induced apoptosis in HL-60 cells. Docking studies showed that complexes 2a and CpRu(CO)(P(Fu)3)(η1-N-maleimidato) 2b have a small ability to degrade DNA, but they may cause a defect in DNA damage repair mechanisms leading to cell death. This hypothesis is corroborated with the results obtained in the plasmid relaxation assay in which ruthenium complexes bearing phosphine and phosphite ligands induce DNA breaks.
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Affiliation(s)
- Michał Juszczak
- University of Lodz, Faculty of Biology and Environmental Protection, Department of Molecular Genetics, Pomorska 141/143, 90-236, Lodz, Poland.
| | - Sujoy Das
- University of Lodz, Faculty of Chemistry, Department of Organic Chemistry, Tamka 12, 91-403 Lodz, Poland.
| | - Aneta Kosińska
- University of Lodz, Faculty of Chemistry, Department of Organic Chemistry, Tamka 12, 91-403 Lodz, Poland.
| | - Agnieszka J Rybarczyk-Pirek
- University of Lodz, Faculty of Chemistry, Department of Physical Chemistry, Pomorska 163/165, 90-236 Lodz, Poland
| | - Kinga Wzgarda-Raj
- University of Lodz, Faculty of Chemistry, Department of Physical Chemistry, Pomorska 163/165, 90-236 Lodz, Poland
| | - Paulina Tokarz
- University of Lodz, Faculty of Biology and Environmental Protection, Department of Molecular Genetics, Pomorska 141/143, 90-236, Lodz, Poland.
| | - Saranya Vasudevan
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Arkadiusz Chworos
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Katarzyna Woźniak
- University of Lodz, Faculty of Biology and Environmental Protection, Department of Molecular Genetics, Pomorska 141/143, 90-236, Lodz, Poland.
| | - Bogna Rudolf
- University of Lodz, Faculty of Chemistry, Department of Organic Chemistry, Tamka 12, 91-403 Lodz, Poland.
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8
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Suwara J, Radzikowska-Cieciura E, Chworos A, Pawlowska R. The ATP-dependent Pathways and Human Diseases. Curr Med Chem 2023; 30:1232-1255. [PMID: 35319356 DOI: 10.2174/0929867329666220322104552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 12/31/2021] [Accepted: 01/04/2022] [Indexed: 11/22/2022]
Abstract
Adenosine triphosphate (ATP) is one of the most important molecules of life, present both inside the cells and extracellularly. It is an essential building block for nucleic acids biosynthesis and crucial intracellular energy storage. However, one of the most interesting functions of ATP is the role of a signaling molecule. Numerous studies indicate the involvement of ATP-dependent pathways in maintaining the proper functioning of individual tissues and organs. Herein, the latest data indicating the ATP function in the network of intra- and extracellular signaling pathways including purinergic signaling, MAP kinase pathway, mTOR and calcium signaling are collected. The main ATP-dependent processes maintaining the proper functioning of the nervous, cardiovascular and immune systems, as well as skin and bones, are summarized. The disturbances in the ATP amount, its cellular localization, or interaction with target elements may induce pathological changes in signaling pathways leading to the development of serious diseases. The impact of an ATP imbalance on the development of dangerous health dysfunctions such as neurodegeneration diseases, cardiovascular diseases (CVDs), diabetes mellitus, obesity, cancers and immune pathogenesis are discussed here.
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Affiliation(s)
- Justyna Suwara
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Lodz, Poland
| | - Ewa Radzikowska-Cieciura
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Lodz, Poland
| | - Arkadiusz Chworos
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Lodz, Poland
| | - Roza Pawlowska
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Lodz, Poland
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9
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Graczyk A, Radzikowska-Cieciura E, Kaczmarek R, Pawlowska R, Chworos A. Modified Nucleotides for Chemical and Enzymatic Synthesis of Therapeutic RNA. Curr Med Chem 2023; 30:1320-1347. [PMID: 36239720 DOI: 10.2174/0929867330666221014111403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 04/22/2022] [Accepted: 05/16/2022] [Indexed: 11/22/2022]
Abstract
In recent years, RNA has emerged as a medium with a broad spectrum of therapeutic potential, however, for years, a group of short RNA fragments was studied and considered therapeutic molecules. In nature, RNA plays both functions, with coding and non-coding potential. For RNA, like any other therapeutic, to be used clinically, certain barriers must be crossed. Among them, there are biocompatibility, relatively low toxicity, bioavailability, increased stability, target efficiency and low off-target effects. In the case of RNA, most of these obstacles can be overcome by incorporating modified nucleotides into its structure. This may be achieved by both, in vitro and in vivo biosynthetic methods, as well as chemical synthesis. Some advantages and disadvantages of each approach are summarized here. The wide range of nucleotide analogues has been tested for their utility as monomers for RNA synthesis. Many of them have been successfully implemented, and a lot of pre-clinical and clinical studies involving modified RNA have been carried out. Some of these medications have already been introduced into clinics. After the huge success of RNA-based vaccines that were introduced into widespread use in 2020, and the introduction to the market of some RNA-based drugs, RNA therapeutics containing modified nucleotides appear to be the future of medicine.
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Affiliation(s)
- Anna Graczyk
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Ewa Radzikowska-Cieciura
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Renata Kaczmarek
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Roza Pawlowska
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Arkadiusz Chworos
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
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Pawlowska R, Chworos A. Nucleoside and Nucleotide Analogues as Potential Therapeutics. Curr Med Chem 2023; 30:1207-1208. [PMID: 36872461 DOI: 10.2174/092986733011230106124249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Roza Pawlowska
- Centre of Molecular and Macromolecular Studies of the Polish Academy of Sciences, Sienkiewicza 112 90-363 Lodz, Poland
| | - Arkadiusz Chworos
- Centre of Molecular and Macromolecular Studies of the Polish Academy of Sciences, Sienkiewicza 112 90-363 Lodz, Poland
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11
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Kosińska A, Virieux D, Pirat JL, Czarnecka K, Girek M, Szymański P, Wojtulewski S, Vasudevan S, Chworos A, Rudolf B. Synthesis and Biological Studies of Novel Aminophosphonates and Their Metal Carbonyl Complexes (Fe, Ru). Int J Mol Sci 2022; 23:ijms23158091. [PMID: 35897660 PMCID: PMC9330042 DOI: 10.3390/ijms23158091] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/19/2022] [Accepted: 07/20/2022] [Indexed: 02/01/2023] Open
Abstract
The quest to find new inhibitors of biologically relevant targets is considered an important strategy to introduce new drug candidates for the treatment of neurodegenerative diseases. A series of (aminomethyl)benzylphosphonates 8a–c and their metallocarbonyl iron 9a–c and ruthenium 10a–c complexes were designed, synthesized, and evaluated for their inhibitory potentials against acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE) by determination of IC50. Metallocarbonyl derivatives, in general, did not show significant inhibition activity against these enzymes, the most potent inhibitor was the (aminomethyl)benzylphosphonate 8a (IC50 = 1.215 µM against AChE). Molecular docking analysis of AChE and (aminomethyl)benzylphosphonates 8a–c showed the strongest interactions of 8a and AChE compared to isomers 8b and 8c. Cytotoxicity studies of synthesized compounds towards the V79 cell line were also performed and discussed.
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Affiliation(s)
- Aneta Kosińska
- Department of Organic Chemistry, Faculty of Chemistry, University of Lodz, Tamka 12, 91-403 Lodz, Poland
- ICGM, Univ. Montpellier, CNRS, ENSCM, 34090 Montpellier, France; (D.V.); (J.-L.P.)
- Correspondence: (A.K.); (B.R.)
| | - David Virieux
- ICGM, Univ. Montpellier, CNRS, ENSCM, 34090 Montpellier, France; (D.V.); (J.-L.P.)
| | - Jean-Luc Pirat
- ICGM, Univ. Montpellier, CNRS, ENSCM, 34090 Montpellier, France; (D.V.); (J.-L.P.)
| | - Kamila Czarnecka
- Department of Pharmaceutical Chemistry, Drug Analyses and Radiopharmacy, Faculty of Pharmacy, Medical University of Lodz, Muszynskiego 1, 90-151 Lodz, Poland; (K.C.); (P.S.)
| | - Małgorzata Girek
- Animal House, Faculty of Pharmacy, Medical University of Lodz, Muszynskiego 1, 90-151 Lodz, Poland;
| | - Paweł Szymański
- Department of Pharmaceutical Chemistry, Drug Analyses and Radiopharmacy, Faculty of Pharmacy, Medical University of Lodz, Muszynskiego 1, 90-151 Lodz, Poland; (K.C.); (P.S.)
- Department of Radiobiology and Radiation Protection, Military Institute of Hygiene and Epidemiology, Kozielska 4, 01-163 Warsaw, Poland
| | - Sławomir Wojtulewski
- Department of Structural Chemistry, Faculty of Chemistry, University of Bialystok, Ciołkowskiego 1K, 15-245 Bialystok, Poland;
| | - Saranya Vasudevan
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland; (S.V.); (A.C.)
| | - Arkadiusz Chworos
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland; (S.V.); (A.C.)
| | - Bogna Rudolf
- Department of Organic Chemistry, Faculty of Chemistry, University of Lodz, Tamka 12, 91-403 Lodz, Poland
- Correspondence: (A.K.); (B.R.)
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Abstract
Conjugates of gold nanoparticles and ribonucleic acid are particularly interesting for biological applications to serve as therapeutics or biosensors. In this paper we present, for the first time, a conjugate of gold nanoparticles and structural RNA (tectoRNA), which serves as a tool for gene expression regulation. The tectoRNA trimer was modified to facilitate the introduction of a thiol linker, which aids the formation of stable RNA:AuNP conjugates. We demonstrated that these complexes can penetrate cells, which were observed in TEM analysis and are effective in gene expression regulation evident in GFP expression studies with fluorescence methods. The presented compounds have the potential to become a new generation of therapeutics that utilize the power of self-assembling, biologically active RNAs and gold nanoparticles, with their diagnostically useful optical properties and biocompatibility advantages.
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Affiliation(s)
- Anna Graczyk
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, Lodz 90-363, Poland
| | - Roza Pawlowska
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, Lodz 90-363, Poland
| | - Arkadiusz Chworos
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, Lodz 90-363, Poland
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Madaj R, Pawlowska R, Chworos A. In silico exploration of binding of selected bisphosphonate derivatives to placental alkaline phosphatase via docking and molecular dynamics. J Mol Graph Model 2020; 103:107801. [PMID: 33296741 DOI: 10.1016/j.jmgm.2020.107801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 11/06/2020] [Accepted: 11/06/2020] [Indexed: 01/06/2023]
Abstract
Bisphosphonates constitute a group of pyrophosphate analogues therapeutically active against bone diseases. Numerous studies confirm their anticancer and antimetastatic potential as well as ability to relieve pathological pain. Although this is a known class of compounds, many aspects of their action remain unexplained and their new interaction partners are still being discovered. Due to the structural similarity to pyrophosphate, their interaction with pyrophosphate-recognizing enzymes seems to be feasible. In current work, the placental alkaline phosphatase (PLAP) is considered as a potential target for these class of compounds. PLAP is one of the enzymes responsible for degradation of pyrophosphate with high clinical significance. An elevation of PLAP level are considered as a potential cancer marker. An in silico study of complexes formed between selected phosphate derivatives and PLAP was performed. It indicates that all tested compounds: alendronic acid, clodronic acid, etidronic acid, zoledronic acid, imidodiphosphoric acid, pyrophosphoric acid, medronic acid, chloromethylenediphosphonic acid and hypophosphoric acid form a complexes with PLAP, stabilized by hydrogen bonds, hydrophobic and van der Waals interactions. Zoledronic acid, drug used in prevention of bone complications during cancer treatment was found to have the lowest estimated energy of binding (-6.6 kcal/mol). In silico study yielded very low energy of binding also for hypophosphate, equal -6.4 kcal/mol, despite having no identified hydrogen bonds. Subsequent molecular dynamic simulations, followed by molecular mechanics generalized-born surface area with pairwise decomposition calculations confirmed the stability of protein-ligand complexes. The results indicate that selected phosphate derivatives may potentially interact with the enzyme, changing its function, what should be investigated during in vitro studies.
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Affiliation(s)
- Rafal Madaj
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Lodz, Poland.
| | - Roza Pawlowska
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Lodz, Poland
| | - Arkadiusz Chworos
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363, Lodz, Poland
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14
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Wróblewska A, Śniechowska J, Kaźmierski S, Wielgus E, Bujacz GD, Mlostoń G, Chworos A, Suwara J, Potrzebowski MJ. Application of 1-Hydroxy-4,5-Dimethyl-Imidazole 3-Oxide as Coformer in Formation of Pharmaceutical Cocrystals. Pharmaceutics 2020; 12:pharmaceutics12040359. [PMID: 32326428 PMCID: PMC7238160 DOI: 10.3390/pharmaceutics12040359] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 04/08/2020] [Accepted: 04/10/2020] [Indexed: 12/20/2022] Open
Abstract
Two, well defined binary crystals with 1-Hydroxy-4,5-Dimethyl-Imidazole 3-Oxide (HIMO) as coformer and thiobarbituric acid (TBA) as well barbituric acid (BA) as Active Pharmaceutical Ingredients (APIs) were obtained by cocrystallization (from methanol) or mechanochemically by grinding. The progress of cocrystal formation in a ball mill was monitored by means of high-resolution, solid state NMR spectroscopy. The 13C CP/MAS, 15N CP/MAS and 1H Very Fast (VF) MAS NMR procedures were employed to inspect the tautomeric forms of the APIs, structure elucidation of the coformer and the obtained cocrystals. Single crystal X-ray studies allowed us to define the molecular structure and crystal packing for the coformer as well as the TBA/HIMO and BA/HIMO cocrystals. The intermolecular hydrogen bonding, π-π interactions and CH-π contacts responsible for higher order organization of supramolecular structures were determined. Biological studies of HIMO and the obtained cocrystals suggest that these complexes are not cytotoxic and can potentially be considered as therapeutic materials.
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Affiliation(s)
- Aneta Wróblewska
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland; (A.W.); (J.Ś.); (S.K.); (E.W.); (A.C.); (J.S.)
| | - Justyna Śniechowska
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland; (A.W.); (J.Ś.); (S.K.); (E.W.); (A.C.); (J.S.)
| | - Sławomir Kaźmierski
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland; (A.W.); (J.Ś.); (S.K.); (E.W.); (A.C.); (J.S.)
| | - Ewelina Wielgus
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland; (A.W.); (J.Ś.); (S.K.); (E.W.); (A.C.); (J.S.)
| | - Grzegorz D. Bujacz
- Institute of Technical Biochemistry, Lodz University of Technology, Stefanowskiego 4/10, 90-924 Lodz, Poland;
| | - Grzegorz Mlostoń
- Department of Organic and Applied Chemistry, University of Lodz, Tamka 12, 91-403 Lodz, Poland;
| | - Arkadiusz Chworos
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland; (A.W.); (J.Ś.); (S.K.); (E.W.); (A.C.); (J.S.)
| | - Justyna Suwara
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland; (A.W.); (J.Ś.); (S.K.); (E.W.); (A.C.); (J.S.)
| | - Marek J. Potrzebowski
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland; (A.W.); (J.Ś.); (S.K.); (E.W.); (A.C.); (J.S.)
- Correspondence: ; Tel.: +48-42-680-3240
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15
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Suwara J, Lukasik B, Zurawinski R, Pawlowska R, Chworos A. Highly Fluorescent Distyrylnaphthalene Derivatives as a Tool for Visualization of Cellular Membranes. Materials (Basel) 2020; 13:E951. [PMID: 32093301 PMCID: PMC7078901 DOI: 10.3390/ma13040951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 02/14/2020] [Accepted: 02/15/2020] [Indexed: 11/16/2022]
Abstract
Fluorescent imaging, which is an important interdisciplinary field bridging research from organic chemistry, biochemistry and cell biology has been applied for multi-dimensional detection, visualization and characterization of biological structures and processes. Especially valuable is the possibility to monitor cellular processes in real time using fluorescent probes. In this work, conjugated oligoelectrolytes and neutral derivatives with the distyrylnaphthalene core (SN-COEs) were designed, synthetized and tested for biological properties as membrane-specific fluorescent dyes for the visualization of membrane-dependent cellular processes. The group of tested compounds includes newly synthesized distyrylnaphthalene derivatives (DSNNs): a trimethylammonium derivative (DSNN-NMe3+), a phosphonate derivative (DSNN-P), a morpholine derivative (DSNN-Mor), a dihydroxyethylamine derivative (DSNN-DEA), a phosphonate potassium salt (DSNN-POK), an amino derivative (DSNN-NH2) and pyridinium derivative (DSNN-Py+). All compounds were tested for their biological properties, including cytotoxicity and staining efficiency towards mammalian cells. The fluorescence intensity of SN-COEs incorporated into cellular structures was analyzed by fluorescence activated cell sorting (FACS) and photoluminescence spectroscopy. The cytotoxicity results have shown that all tested SN-COEs can be safely used in the human and animal cell studies. Fluorescence and confocal microscopy observations confirm that tested COEs can be applied as fluorescent probes for the visualization of intracellular membrane components in a wide range of different cell types, including adherent and suspension cells. The staining procedure may be performed under both serum free and complete medium conditions. The presented studies have revealed the interesting biological properties of SN-COEs and confirmed their applicability as dyes for staining the membranous structures of eukaryotic cells, which may be useful for visualization of wide range of biological processes dependent of the extra-/intracellular communications and/or based on the remodeling of cellular membranes.
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Affiliation(s)
| | | | | | - Roza Pawlowska
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland; (J.S.); (B.L.); (R.Z.)
| | - Arkadiusz Chworos
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland; (J.S.); (B.L.); (R.Z.)
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16
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Chollakup R, Uttayarat P, Chworos A, Smitthipong W. Noncovalent Sericin-Chitosan Scaffold: Physical Properties and Low Cytotoxicity Effect. Int J Mol Sci 2020; 21:E775. [PMID: 31991686 PMCID: PMC7036936 DOI: 10.3390/ijms21030775] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 01/02/2020] [Accepted: 01/07/2020] [Indexed: 12/22/2022] Open
Abstract
This research aims to utilize sericin, which is the waste from boiling silk cocoon, for the supramolecular scaffold preparation with chitosan. A suitable method for the self-assembled scaffold formation of sericin and chitosan at 1:1 stoichiometry is presented and the morphological and physical properties of the scaffold are studied. The effect of an alcohol/NaOH solution on the secondary structure of sericin protein within the sericin-chitosan scaffold, with adjusted pH, was investigated. Additionally, the scaffold was tested in a native phosphate buffer solution (PBS). The results show that sericin increases the porosity of scaffold while chitosan increases the rigidity. The self-assembled sericin and chitosan material is nontoxic to human cells and which can adhere and spread well on such support. For the effect of the molecular weight of chitosan (15,000 and 100,000 g/mol), the scaffold made from lower molecular weight (MW) chitosan provides a somewhat smaller porosity, but a similar swelling ratio and water uptake. On the basis of this research, sericin, which is a silk waste from the textile industry, can be utilized to produce a self-assembled scaffold with chitosan in order to increase the porosity of the scaffold. This type of scaffold is not toxic and can be used for the adhesion of fibroblast cells.
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Affiliation(s)
- Rungsima Chollakup
- Kasetsart Agricultural and Agro-Industrial Product Improvement Institute (KAPI), Kasetsart University, Chatuchak, Bangkok 10900, Thailand;
| | - Pimporn Uttayarat
- Thailand Institute of Nuclear Technology, 16 Vibravadeerungsit, Chatuchak, Bangkok 10900, Thailand;
| | - Arkadiusz Chworos
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90363 Lodz, Poland;
| | - Wirasak Smitthipong
- Specialized Center of Rubber and Polymer Materials in Agriculture and Industry (RPM), Department of Materials Science, Faculty of Science, Kasetsart University, Chatuchak, Bangkok 10900, Thailand
- Office of Natural Rubber Research Program, Thailand Science Research and Innovation (TSRI), Chatuchak, Bangkok 10900, Thailand
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Graczyk A, Pawlowska R, Jedrzejczyk D, Chworos A. Gold Nanoparticles in Conjunction with Nucleic Acids as a Modern Molecular System for Cellular Delivery. Molecules 2020; 25:E204. [PMID: 31947834 PMCID: PMC6982881 DOI: 10.3390/molecules25010204] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 12/23/2019] [Accepted: 12/26/2019] [Indexed: 02/07/2023] Open
Abstract
Development of nanotechnology has become prominent in many fields, such as medicine, electronics, production of materials, and modern drugs. Nanomaterials and nanoparticles have gained recognition owing to the unique biochemical and physical properties. Considering cellular application, it is speculated that nanoparticles can transfer through cell membranes following different routes exclusively owing to their size (up to 100 nm) and surface functionalities. Nanoparticles have capacity to enter cells by themselves but also to carry other molecules through the lipid bilayer. This quality has been utilized in cellular delivery of substances like small chemical drugs or nucleic acids. Different nanoparticles including lipids, silica, and metal nanoparticles have been exploited in conjugation with nucleic acids. However, the noble metal nanoparticles create an alternative, out of which gold nanoparticles (AuNP) are the most common. The hybrids of DNA or RNA and metal nanoparticles can be employed for functional assemblies for variety of applications in medicine, diagnostics or nano-electronics by means of biomarkers, specific imaging probes, or gene expression regulatory function. In this review, we focus on the conjugates of gold nanoparticles and nucleic acids in the view of their potential application for cellular delivery and biomedicine. This review covers the current advances in the nanotechnology of DNA and RNA-AuNP conjugates and their potential applications. We emphasize the crucial role of metal nanoparticles in the nanotechnology of nucleic acids and explore the role of such conjugates in the biological systems. Finally, mechanisms guiding the process of cellular intake, essential for delivery of modern therapeutics, will be discussed.
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Affiliation(s)
| | | | | | - Arkadiusz Chworos
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland; (A.G.); (R.P.); (D.J.)
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Marcinkowska M, Stanczyk M, Janaszewska A, Sobierajska E, Chworos A, Klajnert-Maculewicz B. Multicomponent Conjugates of Anticancer Drugs and Monoclonal Antibody with PAMAM Dendrimers to Increase Efficacy of HER-2 Positive Breast Cancer Therapy. Pharm Res 2019; 36:154. [PMID: 31482205 PMCID: PMC6722151 DOI: 10.1007/s11095-019-2683-7] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 08/06/2019] [Indexed: 02/07/2023]
Abstract
Purpose Conjugation of nanocarriers with antibodies that bind to specific membrane receptors that are overexpressed in cancer cells enables targeted delivery. In the present study, we developed and synthesised two PAMAM dendrimer-trastuzumab conjugates that carried docetaxel or paclitaxel, specifically targeted to cells which overexpressed HER-2. Methods The 1H NMR, 13C NMR, FTIR and RP-HPLC were used to analyse the characteristics of the products and assess their purity. The toxicity of PAMAM-trastuzumab, PAMAM-doc-trastuzumab and PAMAM-ptx-trastuzumab conjugates was determined using MTT assay and compared with free trastuzumab, docetaxel and paclitaxel toward HER-2-positive (SKBR-3) and negative (MCF-7) human breast cancer cell lines. The cellular uptake and internal localisation were studied using flow cytometry and confocal microscopy, respectively. Results The PAMAM-drug-trastuzumab conjugates in particular showed extremely high toxicity toward the HER-2-positive SKBR-3 cells and very low toxicity towards to HER-2-negative MCF-7 cells. As expected, the HER-2-positive SKBR-3 cell line accumulated trastuzumab from both conjugates rapidly; but surprisingly, although a large amount of PAMAM-ptx-trastuzumab conjugate was observed in the HER-2-negative MCF-7 cells. Confocal microscopy confirmed the intracellular localisation of analysed compounds. The key result of fluorescent imaging was the identification of strong selective binding of the PAMAM-doc-trastuzumab conjugate with HER-2-positive SKBR-3 cells only. Conclusions Our results confirm the high selectivity of PAMAM-doc-trastuzumab and PAMAM-ptx-trastuzumab conjugates for HER-2-positive cells, and demonstrate the utility of trastuzumab as a targeting agent. Therefore, the analysed conjugates present an promising approach for the improvement of efficacy of targeted delivery of anticancer drugs such as docetaxel or paclitaxel. Electronic supplementary material The online version of this article (10.1007/s11095-019-2683-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Monika Marcinkowska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236, Lodz, Poland
| | - Maciej Stanczyk
- Department of Surgical Oncology, Cancer Center, Copernicus Memorial Hospital, Lodz, Poland
| | - Anna Janaszewska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236, Lodz, Poland
| | - Ewelina Sobierajska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236, Lodz, Poland
| | - Arkadiusz Chworos
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-236, Lodz, Poland
| | - Barbara Klajnert-Maculewicz
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236, Lodz, Poland.
- Leibniz-Institut für Polymerforschung Dresden e.V, Hohe Strasse 6, 01069, Dresden, Germany.
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Kowalska-Baron A, Zurawinski R, Lukasik B, Chworos A, Przybyt M. Theoretical and experimental study on the effects of pH and surfactant on the internal charge transfer process in distyrylnaphthalene-based conjugated oligoelectrolytes. Spectrochim Acta A Mol Biomol Spectrosc 2019; 216:221-229. [PMID: 30901708 DOI: 10.1016/j.saa.2019.03.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 03/14/2019] [Accepted: 03/16/2019] [Indexed: 06/09/2023]
Abstract
In this study we have investigated the effects of pH and surfactant on the internal charge transfer (ICT) process in the DSNN derivative, DSNN-NMe+3 (4,4'-bis(4'-(N,N-bis(6″-(N,N,N-trimethylammonium)hexyl)amino)-styryl) naphthalene tetraiodide) with the aim to show that environmentally-induced changes in the degree of ICT process determine the spectral response of the DSNN chromophore. Obtained results showed that DSNN chromophore exhibits evident changes in linear optical properties (absorption/emission wavelengths, quantum yield) upon protonation. These changes are a manifestation of the attenuation of the internal charge transfer processes, which accompanies binding of proton to the nitrogen atoms of the dialkylamino groups at the termini of DSNN chromophore. The results obtained in this study clearly demonstrated the sensitivity of the ICT process in DSNN upon protonation, which, together with the affinity of DSNN towards biological and artificial membranes, may open new perspectives for its utility in fluorescence-based sensing. Moreover, the studied compound showed substantial surfactochromic effects in the ionic and non-ionic surfactant solutions, which indicate the formation of various self-organized DSNN-surfactant aggregates. The structure of these aggregates is determined by the type of specific intermolecular interactions between the chromophore and surfactant molecules. The knowledge of the nature of these interactions may be substantial in the future development of DSNN-based sensing platforms with suitable optical properties.
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Affiliation(s)
- Agnieszka Kowalska-Baron
- Institute of General Food Chemistry, Faculty of Biotechnology and Food Sciences, Technical University of Lodz, ul. Stefanowskiego 4/10, 90-924 Lodz, Poland.
| | - Remigiusz Zurawinski
- Division of Heteroorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, ul. Sienkiewicza 112, 90-363 Lodz, Poland
| | - Beata Lukasik
- Division of Heteroorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, ul. Sienkiewicza 112, 90-363 Lodz, Poland
| | - Arkadiusz Chworos
- Division of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, ul. Sienkiewicza 112, 90-363 Lodz, Poland
| | - Malgorzata Przybyt
- Institute of General Food Chemistry, Faculty of Biotechnology and Food Sciences, Technical University of Lodz, ul. Stefanowskiego 4/10, 90-924 Lodz, Poland
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20
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Abstract
In the search for enzymatically processed RNA fragments, we found the novel three-way junction motif. The structure prediction suggested the arrangement of helices at acute angle approx. 60°. This allows the design of a trimeric RNA nanoparticle that can be functionalized with multiple regulatory fragments. Such RNA nano-object of equilateral triangular shape was applied for gene expression regulation studies in two independent cellular systems. Biochemical and functional studies confirmed the predicted shape and structure of the nanoparticle. The regulatory siRNA fragments incorporated into the nanoparticle were effectively released and triggered gene silencing. The regulatory effect was prolonged when induced with structuralized RNA compared to unstructured siRNAs. In these studies, the enzymatic processing of the motif was utilized for function release from the nanoparticle, enabling simultaneous delivery of different regulatory functions. This methodology of sequence search, RNA structural prediction, and application for rational design opens a new way for creating enzymatically processed RNA nanoparticles.
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Affiliation(s)
- Dominika Jedrzejczyk
- Centre of Molecular and Macromolecular Studies , Polish Academy of Sciences , Sienkiewicza 112 , 90-363 Lodz , Poland
| | - Arkadiusz Chworos
- Centre of Molecular and Macromolecular Studies , Polish Academy of Sciences , Sienkiewicza 112 , 90-363 Lodz , Poland
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21
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Marcinkowska M, Sobierajska E, Stanczyk M, Janaszewska A, Chworos A, Klajnert-Maculewicz B. Conjugate of PAMAM Dendrimer, Doxorubicin and Monoclonal Antibody-Trastuzumab: The New Approach of a Well-Known Strategy. Polymers (Basel) 2018; 10:polym10020187. [PMID: 30966223 PMCID: PMC6414888 DOI: 10.3390/polym10020187] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 02/09/2018] [Accepted: 02/12/2018] [Indexed: 11/16/2022] Open
Abstract
The strategy utilizing trastuzumab, a humanized monoclonal antibody against human epidermal growth receptor 2 (HER-2), as a therapeutic agent in HER-2 positive breast cancer therapy seems to have advantage over traditional chemotherapy, especially when given in combination with anticancer drugs. However, the effectiveness of single antibody or antibody conjugated with chemotherapeutics is still far from ideal. Antibody–dendrimer conjugates hold the potential to improve the targeting and release of active substance at the tumor site. In the present study, we developed and synthesized PAMAM dendrimer–trastuzumab conjugates carrying doxorubicin (dox) specifically to cells overexpressing HER-2. 1HNMR, FTIR and RP-HPLC were used to characterize the products and analyze their purity. Toxicity of PAMAM–trastuzumab and PAMAM–dox–trastuzumab conjugates compared with free trastuzumab and doxorubicin towards HER-2 positive (SKBR-3) and negative (MCF-7) human breast cancer cell lines was determined using MTT assay. Furthermore, the cellular uptake and cellular localization were studied by flow cytometry and confocal microscopy, respectively. A cytotoxicity profile of above mentioned compounds indicated that conjugate PAMAM–dox–trastuzumab was more effective when compared to free drug or the conjugate PAMAM–trastuzumab. Moreover, these results reveal that trastuzumab can be used as a targeting agent in PAMAM–dox–trastuzumab conjugate. Therefore PAMAM–dox–trastuzumab conjugate might be an interesting proposition which could lead to improvements in the effectiveness of drug delivery systems for tumors that overexpress HER-2.
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Affiliation(s)
- Monika Marcinkowska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland.
| | - Ewelina Sobierajska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland.
| | - Maciej Stanczyk
- Department of Surgical Oncology, Cancer Center, Copernicus Memorial Hospital, 93-509 Lodz, Poland.
| | - Anna Janaszewska
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland.
| | - Arkadiusz Chworos
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-236 Lodz, Poland.
| | - Barbara Klajnert-Maculewicz
- Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, Pomorska 141/143, 90-236 Lodz, Poland.
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Strasse 6, 01069 Dresden, Germany.
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22
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23
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Abstract
Natural stable RNAs fold and assemble into complex three-dimensional architectures by relying on the hierarchical formation of intricate, recurrent networks of noncovalent tertiary interactions. These sequence-dependent networks specify RNA structural modules enabling orientational and topological control of helical struts to form larger self-folding domains. Borrowing concepts from linguistics, we defined an extended structural syntax of RNA modules for programming RNA strands to assemble into complex, responsive nanostructures under both thermodynamic and kinetic control. Based on this syntax, various RNA building blocks promote the multimolecular assembly of objects with well-defined three-dimensional shapes as well as the isothermal folding of long RNAs into complex single-stranded nanostructures during transcription. This work offers a glimpse of the limitless potential of RNA as an informational medium for designing programmable and functional nanomaterials useful for synthetic biology, nanomedicine, and nanotechnology.
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Affiliation(s)
- Cody Geary
- Department of Chemistry and Biochemistry, Biomolecular Science and Engineering Program, University of California, Santa Barbara, California 93106-9510, United States
| | - Arkadiusz Chworos
- Department of Chemistry and Biochemistry, Biomolecular Science and Engineering Program, University of California, Santa Barbara, California 93106-9510, United States
| | - Erik Verzemnieks
- Department of Chemistry and Biochemistry, Biomolecular Science and Engineering Program, University of California, Santa Barbara, California 93106-9510, United States
| | - Neil R. Voss
- Biological, Chemical, and Physical Sciences Department, Roosevelt University, 1400 North Roosevelt Blvd., Schaumburg, Illinois 60173, United States
| | - Luc Jaeger
- Department of Chemistry and Biochemistry, Biomolecular Science and Engineering Program, University of California, Santa Barbara, California 93106-9510, United States
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24
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Milczarek J, Pawlowska R, Zurawinski R, Lukasik B, Garner LE, Chworos A. Fluorescence and confocal imaging of mammalian cells using conjugated oligoelectrolytes with phenylenevinylene core. Journal of Photochemistry and Photobiology B: Biology 2017; 170:40-48. [PMID: 28388462 DOI: 10.1016/j.jphotobiol.2017.03.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Accepted: 03/25/2017] [Indexed: 01/10/2023]
Affiliation(s)
- Justyna Milczarek
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Roza Pawlowska
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Remigiusz Zurawinski
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Beata Lukasik
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Logan E Garner
- National Renewable Energy Laboratory, 15013 Denver W Pkwy, Golden, CO 80401, USA
| | - Arkadiusz Chworos
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland.
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25
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Abstract
The rapid development of synthetic biology and nanobiotechnology has led to the construction of various synthetic RNA nanoparticles of different functionalities and potential applications. As they occur naturally, nucleic acids are an attractive construction material for biocompatible nanoscaffold and nanomachine design. In this review, we provide an overview of the types of RNA and nucleic acid's nanoparticle design, with the focus on relevant nanostructures utilized for gene-expression regulation in cellular models. Structural analysis and modeling is addressed along with the tools available for RNA structural prediction. The functionalization of RNA-based nanoparticles leading to prospective applications of such constructs in potential therapies is shown. The route from the nanoparticle design and modeling through synthesis and functionalization to cellular application is also described. For a better understanding of the fate of targeted RNA after delivery, an overview of RNA processing inside the cell is also provided.
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Affiliation(s)
- Dominika Jedrzejczyk
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
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26
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Łukasik B, Milczarek J, Pawlowska R, Żurawiński R, Chworos A. Facile synthesis of fluorescent distyrylnaphthalene derivatives for bioapplications. NEW J CHEM 2017. [DOI: 10.1039/c7nj00004a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Synthesis of a novel type of distyrylnaphthalene derivative and their application as molecular fluorescent probes for bioimaging.
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Affiliation(s)
- Beata Łukasik
- Department of Heteroorganic Chemistry
- The Centre of Molecular and Macromolecular Studies
- Polish Academy of Sciences
- 90-363 Łódź
- Poland
| | - Justyna Milczarek
- Department of Bioorganic Chemistry
- The Centre of Molecular and Macromolecular Studies
- Polish Academy of Sciences
- 90-363 Łódź
- Poland
| | - Roza Pawlowska
- Department of Bioorganic Chemistry
- The Centre of Molecular and Macromolecular Studies
- Polish Academy of Sciences
- 90-363 Łódź
- Poland
| | - Remigiusz Żurawiński
- Department of Heteroorganic Chemistry
- The Centre of Molecular and Macromolecular Studies
- Polish Academy of Sciences
- 90-363 Łódź
- Poland
| | - Arkadiusz Chworos
- Department of Bioorganic Chemistry
- The Centre of Molecular and Macromolecular Studies
- Polish Academy of Sciences
- 90-363 Łódź
- Poland
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27
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Pawlowska R, Janicka M, Jedrzejczyk D, Chworos A. RNA fragments mimicking tRNA analogs interact with cytochrome c. Mol Biol Rep 2016; 43:295-304. [DOI: 10.1007/s11033-016-3954-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 02/11/2016] [Indexed: 01/08/2023]
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28
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Czernek L, Chworos A, Duechler M. The Uptake of Extracellular Vesicles is Affected by the Differentiation Status of Myeloid Cells. Scand J Immunol 2016; 82:506-14. [PMID: 26332303 DOI: 10.1111/sji.12371] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Accepted: 08/12/2015] [Indexed: 01/23/2023]
Abstract
Intercellular communication includes the exchange of various membrane vesicles including exosomes. Exosomes are intraluminal nanovesicles generated from multivesicular bodies, a late endosomal compartment. Cancer cells release exosomes that influence their proximate and distant environment to facilitate angiogenesis, metastatic dissemination and immune escape. Cancer-derived vesicles may also trigger an anti-tumour response by transferring tumour antigens to immune cells. We wanted to investigate whether differentiation and maturation of myeloid cells changes their capacity to take up cancer-derived extracellular vesicles (EV). We compared the efficiency of vesicle uptake by monocytes, macrophages and dendritic cells. To visualize and quantify the cellular uptake, EV were labelled with two different dyes, carboxyfluoresceine diacetate succinimidyl-ester (CFSE), or DSSN+, a water soluble distyrylstilbene oligoelectrolyte which preferentially intercalates into the cell membrane. With the help of cytokines, THP-1 monocytes were differentiated into immature or mature dendritic cells, or macrophages. EV uptake was monitored by flow cytometry and immunofluorescence microscopy. The results show that macrophages and mature dendritic cells acquired stronger fluorescence transferred by EV than monocytes or immature dendritic cells indicating that the differentiation status influences the efficiency of EV uptake.
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Affiliation(s)
- L Czernek
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Lodz, Poland
| | - A Chworos
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Lodz, Poland
| | - M Duechler
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Lodz, Poland
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29
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Grzybkowska A, Jędrzejczyk D, Rostkowski M, Chworos A, Dybala-Defratyka A. RNA model evaluation based on MD simulation of four tRNA analogs. RSC Adv 2016. [DOI: 10.1039/c6ra14933b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Characteristic of 3D structures of tRNA analogs generated from primary sequence, subjected to all-atom MD simulation and assessed using selected RNA model evaluation methods.
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Affiliation(s)
- Anna Grzybkowska
- Institute of Applied Radiation Chemistry
- Faculty of Chemistry
- Lodz University of Technology
- Lodz
- Poland
| | - Dominika Jędrzejczyk
- Center of Molecular and Macromolecular Studies
- Polish Academy of Sciences
- 90-363 Lodz
- Poland
| | - Michał Rostkowski
- Institute of Applied Radiation Chemistry
- Faculty of Chemistry
- Lodz University of Technology
- Lodz
- Poland
| | - Arkadiusz Chworos
- Center of Molecular and Macromolecular Studies
- Polish Academy of Sciences
- 90-363 Lodz
- Poland
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30
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Gwozdzinska P, Pawlowska R, Milczarek J, Garner LE, Thomas AW, Bazan GC, Chworos A. Phenylenevinylene conjugated oligoelectrolytes as fluorescent dyes for mammalian cell imaging. Chem Commun (Camb) 2015; 50:14859-61. [PMID: 25322778 DOI: 10.1039/c4cc06478j] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Conjugated phenylenevinylene oligoelectrolytes, which consist of a phenylenevinylene core equipped at each end with hydrophilic pendent groups, are shown to be good candidates for mammalian cell membrane staining. When used in the micromolar concentration range, they express low to moderate cell toxicity for selected regular and cancerous cell lines as tested for adherent and suspension cells.
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Affiliation(s)
- Paulina Gwozdzinska
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90363 Lodz, Poland.
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31
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Abstract
AbstractA novel RNA motif was identified based on its sequence by computational structure modeling. The RNA molecule was reported to be a substrate for the structurally specific endoribonuclease, Dicer, which cleaves doublestranded RNA and cuts out 20−25 nucleotide fragments. This enzymatic property was essential for the potential utilization of the motif in the nanoparticle design of further biological experiments. Herein, the protocol for the prediction of the structure of this motif in-silico is presented, starting from its primary sequence and proceeding through secondary and tertiary structure predictions. Applying RNA architectonics, this novel structural motif, 3wj-nRA, was used for rational RNA nanoparticle design. The molecules, which are based on this three-way junction fold, may assemble into more complex, triangular shaped nano-objects. This trimeric nanoparticle containing 3wj-nRA motif can be further utilized for functionalization and application.
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32
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Dabkowska AP, Michanek A, Jaeger L, Rabe M, Chworos A, Höök F, Nylander T, Sparr E. Assembly of RNA nanostructures on supported lipid bilayers. Nanoscale 2015; 7:583-96. [PMID: 25417592 PMCID: PMC4274363 DOI: 10.1039/c4nr05968a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The assembly of nucleic acid nanostructures with controlled size and shape has large impact in the fields of nanotechnology, nanomedicine and synthetic biology. The directed arrangement of nano-structures at interfaces is important for many applications. In spite of this, the use of laterally mobile lipid bilayers to control RNA three-dimensional nanostructure formation on surfaces remains largely unexplored. Here, we direct the self-assembly of RNA building blocks into three-dimensional structures of RNA on fluid lipid bilayers composed of cationic 1,2-dioleoyl-3-trimethylammonium-propane (DOTAP) or mixtures of zwitterionic 1,2-dioleoyl-sn-glycero-3-phosphatidylcholine (DOPC) and cationic sphingosine. We demonstrate the stepwise supramolecular assembly of discrete building blocks through specific and selective RNA-RNA interactions, based on results from quartz crystal microbalance with dissipation (QCM-D), ellipsometry, fluorescence recovery after photobleaching (FRAP) and total internal reflection fluorescence microscopy (TIRF) experiments. The assembly can be controlled to give a densely packed single layer of RNA polyhedrons at the fluid lipid bilayer surface. We show that assembly of the 3D structure can be modulated by sequence specific interactions, surface charge and changes in the salt composition and concentration. In addition, the tertiary structure of the RNA polyhedron can be controllably switched from an extended structure to one that is dense and compact. The versatile approach to building up three-dimensional structures of RNA does not require modification of the surface or the RNA molecules, and can be used as a bottom-up means of nanofabrication of functionalized bio-mimicking surfaces.
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Affiliation(s)
- Aleksandra P Dabkowska
- Division of Physical Chemistry, Department of Chemistry, Lund University, P.O. Box 124, 22100 Lund, Sweden.
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33
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Abstract
DNA-grafted particles can assemble together, and the interaction strength is related to the hydrogen bonding from DNA linker between DNA-grafted particles. Two types of DNA linker are proposed.
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Affiliation(s)
- Rungsima Chollakup
- Kasetsart Agricultural and Agro-Industrial Product Improvement Institute (KAPI)
- Kasetsart University
- Bangkok 10900, Thailand
| | - Wirasak Smitthipong
- Kasetsart Agricultural and Agro-Industrial Product Improvement Institute (KAPI)
- Kasetsart University
- Bangkok 10900, Thailand
| | - Arkadiusz Chworos
- Centre of Molecular and Macromolecular Studies
- Polish Academy of Sciences
- Lodz, Poland
- Department of Chemistry
- University of California
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34
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Pawlowska R, Gwozdzinska P, Garner L, Chworos A. Distyrylbenzene oligoelectrolyte (DSBN+) for human cervical carcinoma cells imaging. ACTA ACUST UNITED AC 2013. [DOI: 10.1557/opl.2013.1100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
ABSTRACTIn the presented study, a new application for distyrylbenzene oligoelectrolyte, named DSBN+, as a marker for bioimaging is presented. DSBN+ is a water-soluble, conjugated oligoelectrolyte (COE) with novel photophysical and solvatochromatic properties. Previous studies have shown that this compound spontaneously inserts into bilayer membranes in both synthetic and microbial living systems and can facilitate visualization of cell membranes through fluorescence imaging. In the presented research, we seek to further study and exploit the multifunctional nature of DSBN+ in terms of membrane interactions and photophysical properties for visualization of membranous structures of more complex mammalian cells, namely a human cervical carcinoma (HeLa) cell line. Obtained results confirm the possibility of applying DSBN+ as a fluorescent dye for bioimaging of membranes in human cell cultures systems, both in live-cell imaging and in the studies required formaldehyde fixation. Due to the defined structure of this conjugated oligoelectrolyte we suspect that it will display organelle membrane selectivity, but this has to be further investigated.
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35
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36
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Missirlis D, Chworos A, Fu CJ, Khant HA, Krogstad DV, Tirrell M. Effect of the peptide secondary structure on the peptide amphiphile supramolecular structure and interactions. Langmuir 2011; 27:6163-70. [PMID: 21488620 PMCID: PMC3103120 DOI: 10.1021/la200800e] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Bottom-up fabrication of self-assembled nanomaterials requires control over forces and interactions between building blocks. We report here on the formation and architecture of supramolecular structures constructed from two different peptide amphiphiles. Inclusion of four alanines between a 16-mer peptide and a 16 carbon long aliphatic tail resulted in a secondary structure shift of the peptide headgroups from α helices to β sheets. A concomitant shift in self-assembled morphology from nanoribbons to core-shell worm-like micelles was observed by cryogenic transmission electron microscopy (cryo-TEM) and atomic force microscopy (AFM). In the presence of divalent magnesium ions, these a priori formed supramolecular structures interacted in distinct manners, highlighting the importance of peptide amphiphile design in self-assembly.
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Affiliation(s)
- Dimitris Missirlis
- Department of Chemical Engineering, University of California, Santa Barbara, CA 93106, USA
- Materials Research Laboratory, University of California, Santa Barbara, CA 93106, USA
- Department of Bioengineering, University of California, Berkeley, CA 94720, USA
| | - Arkadiusz Chworos
- Department of Physics, University of California, Santa Barbara, CA 93106-9530, USA
- The Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences in Lodz, Sienkiewicza 112, Lodz, 90363, Poland
| | - Caroline J. Fu
- Department of Biochemistry and Molecular Biology, Baylor College of Medicine, TX 77030, USA
| | - Htet A. Khant
- Department of Biochemistry and Molecular Biology, Baylor College of Medicine, TX 77030, USA
| | - Daniel V. Krogstad
- Materials Research Laboratory, University of California, Santa Barbara, CA 93106, USA
- Materials Department, University of California, Santa Barbara, CA 93106, USA
| | - Matthew Tirrell
- Department of Chemical Engineering, University of California, Santa Barbara, CA 93106, USA
- Materials Research Laboratory, University of California, Santa Barbara, CA 93106, USA
- Department of Bioengineering, University of California, Berkeley, CA 94720, USA
- Materials Department, University of California, Santa Barbara, CA 93106, USA
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37
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Ortony JH, Chatterjee T, Garner LE, Chworos A, Mikhailovsky A, Kramer EJ, Bazan GC. Self-Assembly of an Optically Active Conjugated Oligoelectrolyte. J Am Chem Soc 2011; 133:8380-7. [DOI: 10.1021/ja202776b] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Tirtha Chatterjee
- Analytical Sciences, The Dow Chemical Company, Midland, Michigan 48667, United States
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38
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Grabow WW, Zakrevsky P, Afonin KA, Chworos A, Shapiro BA, Jaeger L. Self-assembling RNA nanorings based on RNAI/II inverse kissing complexes. Nano Lett 2011; 11:878-87. [PMID: 21229999 PMCID: PMC3036768 DOI: 10.1021/nl104271s] [Citation(s) in RCA: 179] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
RNA is an attractive biopolymer for nanodesign of self-assembling particles for nanobiotechnology and synthetic biology. Here, we experimentally characterize by biochemical and biophysical methods the formation of thermostable and ribonuclease resistant RNA nanorings previously proposed by computational design. High yields of fully programmable nanorings were produced based on several RNAI/IIi kissing complex variants selected for their ability to promote polygon self-assembly. This self-assembly strategy relying on the particular geometry of bended kissing complexes has potential for developing short interfering RNA delivery agents.
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Affiliation(s)
- Wade W. Grabow
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA 93106-9510, USA
| | - Paul Zakrevsky
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA 93106-9510, USA
| | - Kirill A. Afonin
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA 93106-9510, USA
| | - Arkadiusz Chworos
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA 93106-9510, USA
| | - Bruce A. Shapiro
- Center for Cancer Research Nanobiology Program, National Cancer Institute, NCI-Frederick, National Institutes of Health, Frederick, Maryland 21702
| | - Luc Jaeger
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA 93106-9510, USA
- Biomolecular Science and Engineering Program, University of California, Santa Barbara, CA 93106, USA
- To whom correspondence should be addressed: Phone: 805-8933628; Fax: 805-8934120;
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39
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Vinckier NK, Chworos A, Parsons SM. Improved isolation of proteins tagged with glutathione S-transferase. Protein Expr Purif 2011; 75:161-4. [DOI: 10.1016/j.pep.2010.09.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2010] [Revised: 09/03/2010] [Accepted: 09/08/2010] [Indexed: 11/26/2022]
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40
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Smitthipong W, Chworos A, Lin B, Neumann T, Gajria S, Jaeger L, Tirrell M. Self-assembled Materials Containing Complementary Nucleobase Molecular Recognition. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-1094-dd06-05] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AbstractHere we report the nucleic acid/cationic amphiphile based-materials in which we exchange the counter-ions of the polyanionic backbone of the nucleic acids with the cationic amphiphiles to form self-assembled transparent films with the thickness of several microns. Predominantly, single stranded poly(A), poly(U) and double stranded poly(AU) were employed for these studies. Small-angle X-ray scattering (SAXS) experiments suggested lamellar-like structure for all the film samples. However, the molecule length as well as the molecular structure of nucleic acids can affect the topology and mechanical properties of these films. Complementary base-paring of poly(AU) is reported here with comparison to poly(A) and poly(U) complexes.
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41
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Abstract
RNA molecules take advantage of prevalent structural motifs to fold and assemble into well-defined 3D architectures. The A-minor junction is a class of RNA motifs that specifically controls coaxial stacking of helices in natural RNAs. A sensitive self-assembling supra-molecular system was used as an assay to compare several natural and previously unidentified A-minor junctions by native polyacrylamide gel electrophoresis and atomic force microscopy. This class of modular motifs follows a topological rule that can accommodate a variety of interchangeable A-minor interactions with distinct local structural motifs. Overall, two different types of A-minor junctions can be distinguished based on their functional self-assembling behavior: one group makes use of triloops or GNRA and GNRA-like loops assembling with helices, while the other takes advantage of more complex tertiary receptors specific for the loop to gain higher stability. This study demonstrates how different structural motifs of RNA can contribute to the formation of topologically equivalent helical stacks. It also exemplifies the need of classifying RNA motifs based on their tertiary structural features rather than secondary structural features. The A-minor junction rule can be used to facilitate tertiary structure prediction of RNAs and rational design of RNA parts for nanobiotechnology and synthetic biology.
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Affiliation(s)
- Cody Geary
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA 93106-9510, USA
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Duarte A, Chworos A, Flagan SF, Hanrahan G, Bazan GC. Identification of Bacteria by Conjugated Oligoelectrolyte/Single-Stranded DNA Electrostatic Complexes. J Am Chem Soc 2010; 132:12562-4. [DOI: 10.1021/ja105747b] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Aidee Duarte
- Department of Chemistry & Biochemistry, Department of Materials, Center for Polymers and Organic Solids, and Marine Science Institute, University of California, Santa Barbara, California 93106, and Department of Chemistry, California Lutheran University, Thousand Oaks, California 91360
| | - Arkadiusz Chworos
- Department of Chemistry & Biochemistry, Department of Materials, Center for Polymers and Organic Solids, and Marine Science Institute, University of California, Santa Barbara, California 93106, and Department of Chemistry, California Lutheran University, Thousand Oaks, California 91360
| | - Suvi F. Flagan
- Department of Chemistry & Biochemistry, Department of Materials, Center for Polymers and Organic Solids, and Marine Science Institute, University of California, Santa Barbara, California 93106, and Department of Chemistry, California Lutheran University, Thousand Oaks, California 91360
| | - Grady Hanrahan
- Department of Chemistry & Biochemistry, Department of Materials, Center for Polymers and Organic Solids, and Marine Science Institute, University of California, Santa Barbara, California 93106, and Department of Chemistry, California Lutheran University, Thousand Oaks, California 91360
| | - Guillermo C. Bazan
- Department of Chemistry & Biochemistry, Department of Materials, Center for Polymers and Organic Solids, and Marine Science Institute, University of California, Santa Barbara, California 93106, and Department of Chemistry, California Lutheran University, Thousand Oaks, California 91360
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Garner LE, Park J, Dyar SM, Chworos A, Sumner JJ, Bazan GC. Modification of the Optoelectronic Properties of Membranes via Insertion of Amphiphilic Phenylenevinylene Oligoelectrolytes. J Am Chem Soc 2010; 132:10042-52. [DOI: 10.1021/ja1016156] [Citation(s) in RCA: 110] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Logan E. Garner
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, U.S. Army Research Laboratory, Sensors and Electron Devices Directorate, Adelphi, Maryland 20783, and School of Chemical Engineering and Materials Science, Chung-Ang University, 221 Heukseok-Dong, Dongjak-Gu, Seoul, Korea
| | - Juhyun Park
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, U.S. Army Research Laboratory, Sensors and Electron Devices Directorate, Adelphi, Maryland 20783, and School of Chemical Engineering and Materials Science, Chung-Ang University, 221 Heukseok-Dong, Dongjak-Gu, Seoul, Korea
| | - Scott M. Dyar
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, U.S. Army Research Laboratory, Sensors and Electron Devices Directorate, Adelphi, Maryland 20783, and School of Chemical Engineering and Materials Science, Chung-Ang University, 221 Heukseok-Dong, Dongjak-Gu, Seoul, Korea
| | - Arkadiusz Chworos
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, U.S. Army Research Laboratory, Sensors and Electron Devices Directorate, Adelphi, Maryland 20783, and School of Chemical Engineering and Materials Science, Chung-Ang University, 221 Heukseok-Dong, Dongjak-Gu, Seoul, Korea
| | - James J. Sumner
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, U.S. Army Research Laboratory, Sensors and Electron Devices Directorate, Adelphi, Maryland 20783, and School of Chemical Engineering and Materials Science, Chung-Ang University, 221 Heukseok-Dong, Dongjak-Gu, Seoul, Korea
| | - Guillermo C. Bazan
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, U.S. Army Research Laboratory, Sensors and Electron Devices Directorate, Adelphi, Maryland 20783, and School of Chemical Engineering and Materials Science, Chung-Ang University, 221 Heukseok-Dong, Dongjak-Gu, Seoul, Korea
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Drew ME, Chworos A, Oroudjev E, Hansma H, Yamakoshi Y. A tripod molecular tip for single molecule ligand-receptor force spectroscopy by AFM. Langmuir 2010; 26:7117-7125. [PMID: 20000731 DOI: 10.1021/la904151h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Tripod-shaped molecules were designed for chemical modification of the surface of probes used for atomic force microscopy (AFM). These chemically functionalized tips were used for chemical force spectroscopy (CFS) measurements of the ligand-protein receptor interaction in a biotin-NeutrAvidin model system. We demonstrate that by using this unique tripodal system, we can achieve significantly lower density of ligand on the AFM tip apex, which is optimal for true single molecule measurements. Furthermore, the molecular tripods form highly stable bonds to the AFM probes, leading to more robust and reproducible unbinding force data, thereby addressing one of the challenges in CFS studies. Histogram analysis of the hundreds of collected unbinding forces showed a specific distribution with a peak force maximum at approximately 165 pN, in good agreement with the previously reported data of single rupture events of biotin-avidin. We compared these molecular tripod tips with a molecular monopod. The results showed that the molecular tripods are more robust for repeated measurements. The distinct biotin-avidin force maximum was not observed in the control experiments. This indicated that the force distribution observed for molecular tripods corresponds to the specific rupture force between biotin and avidin. The improved robustness of molecular tripods for CFS will provide benefits in other ligand-receptor unbinding studies, including those of transmembrane receptor systems, which require high resolution, sensitivity, and reproducibility in force spectroscopy measurements.
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Affiliation(s)
- Michael E Drew
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia Pennsylvania 19104-6323, USA
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Grabow W, Severcan I, Chworos A, Shapiro B, Luc J. The design and characterization of an RNA nanoring for use in RNA interference drug delivery. FASEB J 2010. [DOI: 10.1096/fasebj.24.1_supplement.655.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Wade Grabow
- Chemistry and BiochemistryUSCBSanta BarbaraCA
| | | | | | - Bruce Shapiro
- Center for Cancer Research Nanobiology ProgramNational Cancer InstituteFrederickMD
| | - Jaeger Luc
- Chemistry and BiochemistryUSCBSanta BarbaraCA
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Abstract
The structural information encoding specific conformations of natural RNAs can be implemented within artificial RNA sequences to control both three-dimensional (3D) shape and self-assembling interfaces for nanotechnology and synthetic biology applications. We have identified three natural RNA motifs known to direct helical topology into approximately 90 degrees bends: a five-way tRNA junction, a three-way junction, and a two-helix bend. These three motifs, embedded within rationally designed RNAs (tectoRNA), were chosen for generating square-shaped tetrameric RNA nanoparticles. The ability of each motif to direct the formation of supramolecular assemblies was compared by both native gel assays and atomic force microscopy. While there are multiple structural solutions for building square-shaped RNA particles, differences in the thermodynamics and molecular dynamics of the 90 degrees motif can lead to different biophysical behaviors for the resulting supramolecular complexes. We demonstrate via structural assembly programming how the different 90 degrees motifs can preferentially direct the formation of either 2D or 3D assemblies.
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Affiliation(s)
- Isil Severcan
- Department of Chemistry and Biochemistry, University of California at Santa Barbara, Santa Barbara, CA 93106-9510
| | - Cody Geary
- Department of Chemistry and Biochemistry, University of California at Santa Barbara, Santa Barbara, CA 93106-9510
| | - Erik Verzemnieks
- Department of Chemistry and Biochemistry, University of California at Santa Barbara, Santa Barbara, CA 93106-9510
| | - Arkadiusz Chworos
- Department of Chemistry and Biochemistry, University of California at Santa Barbara, Santa Barbara, CA 93106-9510
| | - Luc Jaeger
- Department of Chemistry and Biochemistry, University of California at Santa Barbara, Santa Barbara, CA 93106-9510
- To whom correspondence should be addressed: Phone: 805-893-3628; Fax: 805-893-4120; Email;
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Nikolakakis K, Ohtaki A, Newton K, Chworos A, Sagermann M. Preliminary structural investigations of the Eut-L shell protein of the ethanolamine ammonia-lyase metabolosome of Escherichia coli. Acta Crystallogr Sect F Struct Biol Cryst Commun 2009; 65:128-32. [PMID: 19194002 DOI: 10.1107/s1744309108042127] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2008] [Accepted: 12/10/2008] [Indexed: 11/10/2022]
Abstract
The ethanolamine ammonia-lyase microcompartment is composed of five different shell proteins that have been proposed to assemble into symmetrically shaped polyhedral particles of varying sizes. Here, preliminary X-ray analysis of crystals of the bacterial microcompartment shell protein Eut-L from Escherichia coli is reported. Cloning, overexpression and purification resulted in highly pure protein that crystallized readily under many different conditions. In all cases the protein forms thin hexagonal plate-shaped crystals belonging to space group P3 that are of unusually high stability against different solvent conditions. The crystals diffracted to a resolution of 2.0 A using synchrotron radiation but proved to be radiation-sensitive. Preparations of heavy-atom-derivatized crystals for use in determining the three-dimensional structure are under way.
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Affiliation(s)
- Kiel Nikolakakis
- Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, California 93106-9510, USA
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Smitthipong W, Neumann T, Gajria S, Li Y, Chworos A, Jaeger L, Tirrell M. Noncovalent Self-Assembling Nucleic Acid-Lipid Based Materials. Biomacromolecules 2008; 10:221-8. [DOI: 10.1021/bm800701a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wirasak Smitthipong
- Materials Research Laboratory, Department of Chemical Engineering, Department of Chemistry and Biochemistry, and Department of Physics, University of California, Santa Barbara, California 93106
| | - Thorsten Neumann
- Materials Research Laboratory, Department of Chemical Engineering, Department of Chemistry and Biochemistry, and Department of Physics, University of California, Santa Barbara, California 93106
| | - Surekha Gajria
- Materials Research Laboratory, Department of Chemical Engineering, Department of Chemistry and Biochemistry, and Department of Physics, University of California, Santa Barbara, California 93106
| | - Youli Li
- Materials Research Laboratory, Department of Chemical Engineering, Department of Chemistry and Biochemistry, and Department of Physics, University of California, Santa Barbara, California 93106
| | - Arkadiusz Chworos
- Materials Research Laboratory, Department of Chemical Engineering, Department of Chemistry and Biochemistry, and Department of Physics, University of California, Santa Barbara, California 93106
| | - Luc Jaeger
- Materials Research Laboratory, Department of Chemical Engineering, Department of Chemistry and Biochemistry, and Department of Physics, University of California, Santa Barbara, California 93106
| | - Matthew Tirrell
- Materials Research Laboratory, Department of Chemical Engineering, Department of Chemistry and Biochemistry, and Department of Physics, University of California, Santa Barbara, California 93106
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