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Gong W, Sun Y, Tu T, Huang J, Zhu C, Zhang J, Salah M, Zhao L, Xia X, Wang Y. Chitosan inhibits Penicillium expansum possibly by binding to DNA and triggering apoptosis. Int J Biol Macromol 2024; 259:129113. [PMID: 38181919 DOI: 10.1016/j.ijbiomac.2023.129113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 12/05/2023] [Accepted: 12/26/2023] [Indexed: 01/07/2024]
Abstract
Chitosan is a natural polysaccharide that is abundant, biocompatible and exhibits effective antifungal activity against various pathogenic fungi. However, the potential intracellular targets of chitosan in pathogenic fungi and the way of activity of chitosan are far from well known. The present work demonstrated that chitosan could inhibit Penicillium expansum, the principal causal agent of postharvest blue mold decay on apple fruits, by binding to DNA and triggering apoptosis. UV-visible spectroscopy, fluorescence spectroscopy and electrophoretic mobility assay proved the interaction between chitosan and DNA, while atomic force microscope (AFM) observation revealed the binding morphology of chitosan to DNA. Chitosan could inhibit in vitro DNA replication, and cell cycle analysis employing flow cytometry demonstrated that cell cycle was retarded by chitosan treatment. Furthermore, the reactive oxygen species (ROS) assay and membrane potential analysis showed that apoptosis was induced in P. expansum cells after exposure to chitosan. In conclusion, our results confirmed that chitosan interacts with DNA and induces apoptosis. These findings are expected to provide a feasible theoretical basis and practical direction for the promoting and implementing of chitosan in plant protection and further illuminate the possible antifungal mechanisms of chitosan against fungal pathogens.
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Affiliation(s)
- Weifeng Gong
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yemei Sun
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Tingting Tu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Juanying Huang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Chenyang Zhu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Jiaqi Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Mahmoud Salah
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; Department of Environmental Agricultural Science, Faculty of Graduate Studies and Environmental Research, Ain Shams University, Cairo 11566, Egypt
| | - Luning Zhao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Xiaoshuang Xia
- Center of Analysis, Jiangsu University, Zhenjiang 212013, China
| | - Yun Wang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
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2
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Dwivedi A, Srivastava M, Srivastava A, Kumar A, Chaurasia RN, Srivastava SK. A Eu 3+doped functional core-shell nanophosphor as fluorescent biosensor for highly selective and sensitive detection of dsDNA. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2023; 249:112802. [PMID: 37918122 DOI: 10.1016/j.jphotobiol.2023.112802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 10/18/2023] [Accepted: 10/24/2023] [Indexed: 11/04/2023]
Abstract
Lanthanide-doped core-shell nanomaterials have illustrated budding potential as luminescent materials, but their biological applications have still been very limited due to their aqueous solubility and biocompatibility. Here, we report a simple and cost-effective approach to construct a water-stable chitosan-functionalized lanthanoid-based core shell (Ca-Eu:Y2O3@SiO2) nanophosphor. The as-synthesized Ca-Eu:Y2O3@SiO2-chitosan (CEY@SiO2-CH) nanophosphor has been characterized for its structural, morphological, and optical properties, by employing different analytical tools. This sensing platform is suitable for dsDNA probing by tracing the "turn on" fluorescence signal generated by CEY@SiO2-CH nanophosphor with the addition of dsDNA. The ratio of fluorescence intensity enhancement is proportional to the concentration of dsDNA in the range 0.1-90 nM, with the limit of detection at ⁓16.1 pM under optimal experimental conditions. The enhancement in fluorescence response of functionalized core-shell phosphor with dsDNA is due to the antenna effect. Additionally, response of probe has been studied for the real samples displaying percent recovery in between 101 and 105, maximum RSD% upto 5.23 (n = 3). This outcome can be applied to the selective sensing of dsDNA through optical response. These findings establish the CEY@SiO2-CH a simple, portable, and potential candidate as a sensor for rapid and analytical detection of dsDNA.
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Affiliation(s)
- Arpita Dwivedi
- Department of Physics, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
| | - Monika Srivastava
- School of Materials Science and Technology, IIT (BHU), Varanasi 221005, India
| | - Amit Srivastava
- Department of Physics, TDPG College, VBS Purvanchal University, Jaunpur 222001, India
| | - Abhai Kumar
- Department of Botany, Deen Dayal Upadhyaya Gorakhpur University, Gorakhpur 273009, India
| | - Rameshwar Nath Chaurasia
- Department of Neurology, Institute of Medical Sciences, Banaras Hindu University, Varanasi 221005, India
| | - S K Srivastava
- Department of Physics, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
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3
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Grinberg VY, Burova TV, Grinberg NV, Dubovik AS, Tikhonov VE, Moskalets AP, Orlov VN, Plashchina IG, Khokhlov AR. Chitosan polyplexes: Energetics of formation and conformational changes in DNA upon binding and release. Int J Biol Macromol 2023; 250:126265. [PMID: 37567527 DOI: 10.1016/j.ijbiomac.2023.126265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 08/07/2023] [Accepted: 08/08/2023] [Indexed: 08/13/2023]
Abstract
Energetics of chitosan (CS) polyplexes and conformational stability of bound DNA were studied at pH 5.0 by ITC and HS-DSC, respectively. The CS-DNA binding isotherm was well approximated by the McGhee-von Hippel model suggesting the binding mechanism to be a cooperative attachment of interacting CS ligands to the DNA matrix. Melting thermograms of polyplexes revealed the transformation of different conformational forms of bound DNA in dependence on the CS/DNA weight ratio rw. At 0
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Affiliation(s)
- Valerij Y Grinberg
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov St. 28, Moscow 119991, Russian Federation; N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Kosygin St. 4, Moscow 119991, Russian Federation.
| | - Tatiana V Burova
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov St. 28, Moscow 119991, Russian Federation
| | - Natalia V Grinberg
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov St. 28, Moscow 119991, Russian Federation
| | - Alexander S Dubovik
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov St. 28, Moscow 119991, Russian Federation; N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Kosygin St. 4, Moscow 119991, Russian Federation
| | - Vladimir E Tikhonov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov St. 28, Moscow 119991, Russian Federation
| | - Alexander P Moskalets
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov St. 28, Moscow 119991, Russian Federation
| | - Victor N Orlov
- A.N. Belozerskij Institute of Physico-chemical Biology, M.V. Lomonosov Moscow State University, Vorobyevy Gory, 119334 Moscow, Russian Federation
| | - Irina G Plashchina
- N.M. Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Kosygin St. 4, Moscow 119991, Russian Federation
| | - Alexei R Khokhlov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov St. 28, Moscow 119991, Russian Federation; M.V. Lomonosov Moscow State University, Physics Department, Vorobyevy Gory, 119334 Moscow, Russian Federation
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4
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Phunpee S, Chirachanchai S, Ruktanonchai UR. Brush-Structured Chitosan/PolyHEMA with Thymine and Its Synergistic Effect on the Specific Interaction with ssDNA and Cellular Uptake. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:5915-5923. [PMID: 35439019 DOI: 10.1021/acs.langmuir.2c00559] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Cationic polymers are known to attach on an anionic cell surface and favor gene transportation/transfection into the cells. However, when the positive charges accumulate, they tend to cause cell damage and delivery failure. Chitosan (CS) is a potential cationic bio-derived polymer whose chemical structures can be modified to fine-tune the charges as well as the add-on functions. The present work demonstrates (i) the decoration of a nucleic acid sequence-like brush structure on CS to allow the specific interaction with DNA and (ii) delivery into the cell. By simply applying mercaptoacetic acid as the chain transfer agent, the grafting of poly(hydroxyethyl methacrylate) (PHEMA) containing Thy (P(HEMA-Thy)) on CS is possible. The brush-like P(HEMA-Thy) leads Thy moieties to be in sequences. The Thy sequences perform as poly[T] for the specific interaction with ssDNA. The synergistic effect of CS and Thy sequences, i.e., electrostatic and base pairing interactions, results in an effective and efficient binding with ssDNA as well as significant delivery, especially in cellular uptake and cell viability. The use of CS in combination with Thy sequences in brush-like structures on CS is a model for other polysaccharides to be conjugated with the as-designed nucleic acid sequences for potential gene delivery.
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Affiliation(s)
- Sarunya Phunpee
- Bioresources to Advanced Materials (B2A), The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok 10330, Thailand
| | - Suwabun Chirachanchai
- Bioresources to Advanced Materials (B2A), The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok 10330, Thailand
| | - Uracha R Ruktanonchai
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), Pathumthani 12120, Thailand
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Wang Y, Li T, Xue W, Zheng Y, Wang Y, Zhang N, Zhao Y, Wang J, Li Y, Wang C, Hu W. Physicochemical and Biological Insights Into the Molecular Interactions Between Extracellular DNA and Exopolysaccharides in Myxococcus xanthus Biofilms. Front Microbiol 2022; 13:861865. [PMID: 35531272 PMCID: PMC9073016 DOI: 10.3389/fmicb.2022.861865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 04/06/2022] [Indexed: 11/13/2022] Open
Abstract
Extracellular DNA (eDNA) is a critical component in the extracellular matrix (ECM) of bacterial biofilms, while little is known about the mechanisms underlying how eDNA integrates into the ECM through potential macromolecular interactions. Myxococcus xanthus biofilm was employed as a suitable model for the investigation due to the co-distribution of eDNA and exopolysaccharides (EPS) owing to their direct interactions in the ECM. DNA is able to combine with M. xanthus EPS to form a macromolecular conjugate, which is dominated by the electrostatic forces participating in the polymer-polymer interactions. Without intercalation binding, DNA-EPS interactions exhibit a certain degree of reversibility. Acting as a strong extracellular framework during biofilm formation process, the eDNA-EPS complex not only facilitates the initial cell adhesion and subsequent establishment of ECM architecture, but also renders cells within biofilms stress resistances that are relevant to the survival of M. xanthus in some hostile environments. Furthermore, the EPS protects the conjugated DNA from the degradation by nucleic acid hydrolases, which leads to the continuous and stable existence of eDNA in the native ECM of M. xanthus biofilms. These results will shed light on developing prevention and treatment strategies against biofilm-related risks.
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Affiliation(s)
- Yan Wang
- State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University, Qingdao, China
| | - Tingyi Li
- State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University, Qingdao, China
| | - Weiwei Xue
- State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University, Qingdao, China
| | - Yue Zheng
- State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University, Qingdao, China
| | - Yipeng Wang
- State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University, Qingdao, China
| | - Ning Zhang
- State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University, Qingdao, China
| | - Yue Zhao
- College of Pharmaceutical Science, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Jing Wang
- College of Pharmaceutical Science, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yuezhong Li
- State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University, Qingdao, China
| | - Chuandong Wang
- State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University, Qingdao, China
- *Correspondence: Chuandong Wang,
| | - Wei Hu
- State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University, Qingdao, China
- Wei Hu,
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6
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Sun Y, Shang L, Xia X, Meng D, Ren Y, Zhang J, Yao M, Zhou X, Wang Y. Cellular uptake of chitosan and its role in antifungal action against Penicillium expansum. Carbohydr Polym 2021; 269:118349. [PMID: 34294354 DOI: 10.1016/j.carbpol.2021.118349] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 05/31/2021] [Accepted: 06/13/2021] [Indexed: 12/13/2022]
Abstract
Chitosan has wide-spectrum antimicrobial activity but knowledge of its antifungal mechanism is still incomplete. In this study, transcriptome of Penicillium expansum upon chitosan treatment was analyzed by RNA-Seq. KEGG enrichment analysis revealed that endocytosis as well as other physiological pathways was regulated by chitosan treatment. Clathrin adaptor protein mu-subunit (PeCAM) gene, which encodes a protein associated with clathrin-dependent endocytosis, was up-regulated after chitosan treatment. Deletion of PeCAM resulted in changes of conidial, hyphal and colonial morphology. Confocal microscopy images of the distribution of fluorescein isothiocyanate-labeled chitosan confirmed cellular internalization of chitosan. However, deletion of PeCAM almost completely blocked uptake of chitosan into fungal cells and ΔPeCAM mutant exhibited less sensitivity to chitosan compared with wild type, suggesting that chitosan uptake is mediated by clathrin-dependent endocytosis and internalized chitosan also plays an important role in its antifungal activity. Collectively, our results provide a new insight into the antifungal mechanism of chitosan.
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Affiliation(s)
- Yemei Sun
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Linlin Shang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Xiaoshuang Xia
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Di Meng
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yun Ren
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Jiaqi Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Man Yao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Xinghua Zhou
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yun Wang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
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7
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Akbari V, Rezazadeh M, Hanaie NS, Hasanzadeh F. Preparation and in vitro characterization of histidine trimethyl chitosan conjugated nanocomplex incorporated into injectable thermosensitive hydrogels for localized gene delivery. Biotechnol Appl Biochem 2021; 69:1047-1057. [PMID: 33878804 DOI: 10.1002/bab.2175] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 04/03/2021] [Indexed: 02/06/2023]
Abstract
Localized and sustained delivery of DNA using biomaterial scaffolds would increase the applicability of gene therapy in cancer treatment and tissue engineering. The most promising approach is the application of hydrogel scaffolds to encapsulate and deliver DNA in the form of nanocomplex to the target sites. In the present work, histidine conjugated trimethylated chitosan (HTMC) was synthesized and nanocomplexes fabricated with pDNA at different N/P ratios. The zeta potential and size of the HTMC/pDNA nanoparticles were determined using dynamic light scattering technique and the results were confirmed by scanning electron microscopy (SEM). The morphology of the nanoparticles was found spherical in shape having core-shell nanostructure. Based on gel retardation assay, polyplex dissociation following incubation with heparin, protection against DNase Ι, cytotoxicity and transfection experiments, HTMC/pDNA at N/P 15 was selected as an optimized formulation and loaded into CTS/PF127 and HA/PF127 hydrogel. The optimized HTMC/pDNA nanocomplex was homogenously distributed in the CTS/PF127 hydrogel. Transfection experiments were carried out on HEK293T cell lines and the results revealed that HTMC/pDNA complexes are stable and active inside the hydrogel, however, the transfection efficacy was decreased after incorporation into the hydrogel.
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Affiliation(s)
- Vajihe Akbari
- Department of Pharmaceutical Biotechnology, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mahboubeh Rezazadeh
- Department of Pharmaceutics and Novel Drug Delivery System Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Narges Seyed Hanaie
- Department of Pharmaceutics and Novel Drug Delivery System Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Farshid Hasanzadeh
- Department of Medical chemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
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8
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Shipovskaya AB, Shmakov SL, Gegel NO. Optical activity anisotropy of chitosan-based films. Carbohydr Polym 2019; 206:476-486. [PMID: 30553347 DOI: 10.1016/j.carbpol.2018.11.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 10/23/2018] [Accepted: 11/08/2018] [Indexed: 01/28/2023]
Abstract
The optical activity [α] of films of chitosan and chitosan acetate was studied. [α] depended on the orientation angle θ of the film sample around the light beam. The angular dependences [α] = f(θ) (indicatrices) were processed to extract the constant term [α]0and four harmonics ([α]i, Fourier's series) determined by structure elements with the corresponding symmetry: the amorphous (isotropic) phase of chitosan ([α]0), irregular-shaped structures ([α]1), rod-shaped ones in the film plane ([α]2), helical ones located perpendicular to the film surface ([α]3), and crystalline structures ([α]4). The contribution of individual supramolecular structures to the overall optical activity of chitosan was estimated: [α]2 and [α]4 predominated for the fresh chitosan acetate films, while [α]4 did for the chitosan ones. The results of the numerical decomposition of indicatrices are in satisfactory agreement with X-ray diffractometry data. The observed regularities predetermine prospects for obtaining stereoselective chiro-optic chitosan-based materials with novel functional properties.
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Affiliation(s)
- Anna B Shipovskaya
- Institute of Chemistry, Chernyshevsky Saratov State University, Saratov, Russian Federation.
| | - Sergei L Shmakov
- Institute of Chemistry, Chernyshevsky Saratov State University, Saratov, Russian Federation
| | - Natalia O Gegel
- Institute of Chemistry, Chernyshevsky Saratov State University, Saratov, Russian Federation; Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, Saratov, Russian Federation.
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9
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Testo and testo-Pt(II) bind DNA at different locations. Chem Biol Interact 2018; 296:179-184. [PMID: 30253125 DOI: 10.1016/j.cbi.2018.09.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 08/27/2018] [Accepted: 09/17/2018] [Indexed: 01/27/2023]
Abstract
The development of new targeted anticancer agents able to efficiently and specifically destroy cancer cells with minimal toxic side effects is nowadays a subject of intensive research endeavors. We report the conjugation of testo and testo-Pt(II) (two semi-synthetic testosterone derivatives) with calf thymus DNA in aqueous solution at physiological pH. Multiple spectroscopic methods, thermodynamic analysis and modeling were used to determine the binding efficacy of these drugs to DNA duplex. Thermodynamic parameters showed drug-DNA conjugation occurs via ionic interactions with testo-Pt(II) forming more stable DNA adducts than testo with Ktesto-DNA = 1.80 (±0.5) x 105 M-1 and Ktesto-Pt(II)-DNA = 2.3 (±0.8) x 105 M-1. Molecular modeling shows that testo and testo-Pt(II) bind DNA at different locations.
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DNA binding efficacy with functionalized folic acid-PAMAM nanoparticles. Chem Biol Interact 2018; 290:52-56. [DOI: 10.1016/j.cbi.2018.05.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 05/15/2018] [Accepted: 05/21/2018] [Indexed: 01/01/2023]
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Zhao Y, Liu J, Guan L, Zhang Y, Dong P, Li J, Liang X, Komiyama M. Fabrication of aqueous nanodispersion from natural DNA and chitosan as eminent carriers for water-insoluble bioactives. Int J Biol Macromol 2018; 118:263-270. [PMID: 29803748 DOI: 10.1016/j.ijbiomac.2018.05.054] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 05/10/2018] [Accepted: 05/10/2018] [Indexed: 12/21/2022]
Abstract
For high-valued application of natural DNA as raw materials, we prepared nanocarriers by using salmon sperm DNA and chitosan to encapsulate water-insoluble bioactives. Here, water dispersible astaxanthin/DNA/chitosan nano-aggregates (ADC-NAs) were prepared by co-assemble evaporation method. The key point for preparing well formed ADC-NAs was specifically discussed. The resultant ADC-NAs were spherical with 100-300 nm diameter measured by dynamic light scattering (DLS) and transmission electron microscopy (TEM), and their homogeneous dispersions were sufficiently stable at room temperature. One important feature of these nanocarriers is enormously high loading amount of cargo (about 40 wt%). According to the UV-Vis spectra of the nanosuspension, we deduced that astaxanthin was encapsulated as uniquely structured J-aggregates. Fourier transform infra-red (FTIR) spectroscopy proved fabrication was successfully and astaxanthin was embedding in DNA/chitosan nanocarriers. Cytotoxicity was examined in vitro using cell culture in L929 cell lines. When necessary, these nano-aggregates can be degraded by DNase I. Homogeneous dispersions of other non-charged guest molecules are also prepared by using DNA/chitosan nanocarriers. These dispersions are cheaply and easily obtainable from naturally occurring DNA and chitosan, and should be useful for versatile applications.
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Affiliation(s)
- Yingyuan Zhao
- College of food Science and Engineering, Ocean University of China, Qingdao 266003, PR China
| | - Junli Liu
- College of food Science and Engineering, Ocean University of China, Qingdao 266003, PR China
| | - Lei Guan
- College of food Science and Engineering, Ocean University of China, Qingdao 266003, PR China
| | - Yaping Zhang
- College of food Science and Engineering, Ocean University of China, Qingdao 266003, PR China
| | - Ping Dong
- College of food Science and Engineering, Ocean University of China, Qingdao 266003, PR China
| | - Jing Li
- College of food Science and Engineering, Ocean University of China, Qingdao 266003, PR China.
| | - Xingguo Liang
- College of food Science and Engineering, Ocean University of China, Qingdao 266003, PR China; Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266235, PR China.
| | - Makoto Komiyama
- College of food Science and Engineering, Ocean University of China, Qingdao 266003, PR China; World Premier International (WPI) Research Centre for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
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12
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Chanphai P, Tajmir-Riahi H. DNA binding to folic acid-chitosan nanoconjugates. J Biomol Struct Dyn 2017; 36:2746-2751. [DOI: 10.1080/07391102.2017.1371078] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- P. Chanphai
- Department of Chemistry-Biochemistry and Physics, University of Québec at Trois-Rivières, C. P. 500, Trois-Rivières, Québec, G9A 5H7, Canada
| | - H.A. Tajmir-Riahi
- Department of Chemistry-Biochemistry and Physics, University of Québec at Trois-Rivières, C. P. 500, Trois-Rivières, Québec, G9A 5H7, Canada
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13
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Chanphai P, Tajmir-Riahi HA. tRNA conjugation with folic acid-chitosan conjugates. Int J Biol Macromol 2017; 105:810-815. [PMID: 28735004 DOI: 10.1016/j.ijbiomac.2017.07.113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 07/15/2017] [Accepted: 07/17/2017] [Indexed: 01/06/2023]
Abstract
The conjugation of tRNA with folic acid-chitosan conjugates was studied, using multiple spectroscopic methods and transmission electron microscopy (TEM). Thermodynamic analysis ΔH -14 to -10 (KJMol-1) and ΔS 14 to -1 (JMol-1, K-1) showed tRNA-folic acid-chitosan bindings occur via H-bonding, hydrophobic and van der Waals contacts. The loading efficacy and the stability of tRNA conjugates were enhanced as folic acid-chitosan size increased. TEM analysis showed major tRNA morphological changes, upon folic acid-chitosan conjugation. No alteration of tRNA conformation was observed on conjugate formation. Folic acid-chitosan conjugates can deliver tRNA in vitro.
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Affiliation(s)
- P Chanphai
- Department of Chemistry-Biochemistry and Physics, University of Québec at Trois-Rivières, C.P. 500, Trois-Rivières, Québec, G9A 5H7, Canada
| | - H A Tajmir-Riahi
- Department of Chemistry-Biochemistry and Physics, University of Québec at Trois-Rivières, C.P. 500, Trois-Rivières, Québec, G9A 5H7, Canada.
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14
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15
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Chanphai P, Tajmir-Riahi H. Encapsulation of testosterone by chitosan nanoparticles. Int J Biol Macromol 2017; 98:535-541. [DOI: 10.1016/j.ijbiomac.2017.02.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 01/22/2017] [Accepted: 02/01/2017] [Indexed: 02/06/2023]
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Enhancement of magnetofection efficiency using chitosan coated superparamagnetic iron oxide nanoparticles and calf thymus DNA. Colloids Surf B Biointerfaces 2017; 152:169-175. [PMID: 28110038 DOI: 10.1016/j.colsurfb.2017.01.028] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2016] [Revised: 01/15/2017] [Accepted: 01/16/2017] [Indexed: 01/22/2023]
Abstract
Superparamagnetic iron oxide nanoparticles (MNPs) were prepared and coated with chitosan (CS). The chitosan-magnetic iron oxide nanoparticles (CS-MNPs) were characterized using Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), vibrating sample magnetometry (VSM), and the morphology of the particles was studied by transmission electron microscopy (TEM). Our findings show that the magnetic particles were monodisperse (10nm mean diameter) and exhibited superparamagnetic behavior. The interaction between the particles and calf-thymus DNA (DNA) in physiological buffer was studied with UV-vis, fluorescence and circular dichroism spectroscopy and zeta potential. Spectroscopic studies were indicated DNA conformational changes in the presence of CS-MNPs. Binding and thermodynamic parameters at different temperatures were calculated using the Stern-Volmer, Hill, Scatchard and Van't Hoff equations. The binding process was spontaneous and interactions were electrostatic with the appropriate binding constant (Kb=4.52×103M-1, 3.69×103M-1 and 3.02×103M-1 at 300K, 310K and 320K, respectively). Zeta potential measurements of DNA continually increased with the addition of CS-MNPs, supporting our thermodynamic findings. Moreover, CS-MNPs were able to quench the fluorescence of DNA-intercalated ethidium bromide (DNA-EB) by a static quenching mechanism. Cytotoxicity studies show that the DNA-CS-MNP system is biocompatible with a human foreskin fibroblast cell line, HFFF2. Collectively, these results suggest that surface cationic magnetic chitosan-iron oxide nanoparticles can potentially enhance magnetofection efficiency.
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Salehi F, Behboudi H, Kavoosi G, Ardestani SK. Chitosan promotes ROS-mediated apoptosis and S phase cell cycle arrest in triple-negative breast cancer cells: evidence for intercalative interaction with genomic DNA. RSC Adv 2017. [DOI: 10.1039/c7ra06793c] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Chitosan (CS) is a semi-synthetic bio-based polysaccharide with promising biological and antitumor properties.
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Affiliation(s)
- Fahimeh Salehi
- Institute of Biochemistry and Biophysics
- Department of Biochemistry
- University of Tehran
- Tehran
- Iran
| | - Hossein Behboudi
- Institute of Biochemistry and Biophysics
- Department of Biochemistry
- University of Tehran
- Tehran
- Iran
| | | | - Sussan K. Ardestani
- Institute of Biochemistry and Biophysics
- Department of Biochemistry
- University of Tehran
- Tehran
- Iran
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Chanphai P, Agudelo D, Vesper AR, Bérubé G, Tajmir-Riahi HA. Testosterone and its dimers alter tRNA morphology. J Pharm Biomed Anal 2016; 134:269-274. [PMID: 27930994 DOI: 10.1016/j.jpba.2016.11.053] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 11/28/2016] [Indexed: 12/28/2022]
Abstract
The morphology of tRNA was studied upon conjugation with testosterone and its aliphatic and aromatic dimers, using multiple spectroscopic methods, transmission electron microscopy (TEM) and molecular modeling. Structural analysis showed that testosterone binds tRNA through A62, A64, C60, C61, C63, G51, U50 and U59 bases. The binding affinity was testosterone dimer-aromatic>testosterone dimer-aliphatic>testosterone. The steroid loading efficacy was 35-45%. Transmission electron microscopy showed major changes in tRNA morphology upon testosterone interaction with an increase in the diameter of the tRNA aggregate, indicating encapsulation of testosterone by tRNA.
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Affiliation(s)
- P Chanphai
- Department of Chemistry-Biochemistry and Physics, University of Québec at Trois-Rivières, C.P. 500, Trois-Rivières, Québec G9A 5H7, Canada
| | - D Agudelo
- Department of Chemistry-Biochemistry and Physics, University of Québec at Trois-Rivières, C.P. 500, Trois-Rivières, Québec G9A 5H7, Canada
| | - A R Vesper
- Department of Chemistry-Biochemistry and Physics, University of Québec at Trois-Rivières, C.P. 500, Trois-Rivières, Québec G9A 5H7, Canada
| | - G Bérubé
- Department of Chemistry-Biochemistry and Physics, University of Québec at Trois-Rivières, C.P. 500, Trois-Rivières, Québec G9A 5H7, Canada
| | - H A Tajmir-Riahi
- Department of Chemistry-Biochemistry and Physics, University of Québec at Trois-Rivières, C.P. 500, Trois-Rivières, Québec G9A 5H7, Canada.
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Sahiner N, Sengel SB. Tannic acid decorated poly(methacrylic acid) micro and nanoparticles with controllable tannic acid release and antioxidant properties. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.08.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Chanphai P, Tajmir-Riahi H. Conjugation of chitosan nanoparticles with biogenic and synthetic polyamines: A delivery tool for antitumor polyamine analogues. Carbohydr Polym 2016; 152:665-671. [DOI: 10.1016/j.carbpol.2016.06.113] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 06/26/2016] [Accepted: 06/29/2016] [Indexed: 12/20/2022]
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21
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Effect of testosterone and its aliphatic and aromatic dimers on DNA morphology. Int J Biol Macromol 2016; 95:850-855. [PMID: 27693340 DOI: 10.1016/j.ijbiomac.2016.09.090] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Revised: 09/25/2016] [Accepted: 09/26/2016] [Indexed: 02/06/2023]
Abstract
Conjugation of DNA with testosterone and it aliphatic dimer (alip) and aromatic dimer (arom) was investigated in aqueous solution at pH 7.4. Multiple spectroscopic methods, transmission electron microscopy (TEM) and molecular modeling were used to characterize steroid-DNA binding and DNA morphology. Spectroscopic analysis showed that testosterone binds DNA via A7, A16, A17, T8, T15 and T18 nucleobases with overall binding constants Ktest-DNA=1.8 (±0.4)×104M-1, Ktest-dimeralip-DNA=5.7 (±0.7)×104M-1 and Ktest-dimer-arom-DNA=7.3 (±0.9)×104M-1. The binding affinity increases in this order: testosterone dimer-aromatic>testosterone dimer-aliphatic>testosterone. The steroid loading efficacy was 40-50%. Transmission electron microscopy showed major changes in DNA morphology as testosterone-DNA interaction occurred with increase in the diameter of the DNA aggregate, indicating encapsulation of testosterone by DNA. Modeling showed the presence of several nucleobases attached to testosterone with the free binding energy of -4.93Kcal/mol.
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Agudelo D, Kreplak L, Tajmir-Riahi HA. tRNA conjugation with chitosan nanoparticles: An AFM imaging study. Int J Biol Macromol 2015; 85:150-6. [PMID: 26723249 DOI: 10.1016/j.ijbiomac.2015.12.057] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Revised: 12/15/2015] [Accepted: 12/17/2015] [Indexed: 02/06/2023]
Abstract
The conjugation of tRNA with chitosan nanoparticles of different sizes 15,100 and 200 kDa was investigated in aqueous solution using multiple spectroscopic methods and atomic force microscopy (AFM). Structural analysis showed that chitosan binds tRNA via G-C and A-U base pairs as well as backbone PO2 group, through electrostatic, hydrophilic and H-bonding contacts with overall binding constants of KCh-15-tRNA=4.1 (±0.60)×10(3)M(-1), KCh-100-tRNA=5.7 (±0.8)×10(3)M(-1) and KCh-200-tRNA=1.2 (±0.3)×10(4)M(-1). As chitosan size increases more stable polymer-tRNA conjugate is formed. AFM images showed major tRNA aggregation and particle formation occurred as chitosan concentration increased. Even though chitosan induced major biopolymer structural changes, tRNA remains in A-family structure.
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Affiliation(s)
- D Agudelo
- Department of Chemistry-Biochemistry and Physics, University of Québec at Trois-Rivières, C. P. 500, Trois-Rivières (Québec), G9A 5H7, Canada
| | - L Kreplak
- Department of Physics and Atmospheric Science, Sir James Dunn Building Dalhousie University, Lord Dalhousie Drive, Halifax, NS B3H4R2, Canada
| | - H A Tajmir-Riahi
- Department of Chemistry-Biochemistry and Physics, University of Québec at Trois-Rivières, C. P. 500, Trois-Rivières (Québec), G9A 5H7, Canada.
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