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Optimization of ferrous iron removal conditions by freezing from industrial titanyl sulfate solution for high purity TiO2 preparation. CHEMICAL PAPERS 2023. [DOI: 10.1007/s11696-023-02773-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
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Sabzehzari M, Zeinali M, Naghavi MR. Alternative sources and metabolic engineering of Taxol: Advances and future perspectives. Biotechnol Adv 2020; 43:107569. [PMID: 32446923 DOI: 10.1016/j.biotechadv.2020.107569] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 04/04/2020] [Accepted: 05/18/2020] [Indexed: 02/06/2023]
Abstract
Paclitaxel is one of the strong plant-derived anti-cancer drugs that was first isolated from the Pacific yew. Despite many paclitaxel's clinical successes, the limited accessibility of paclitaxel for clinical trials is recognized as the most important challenge. Thus, researchers are continuously trying to find the innovative ways to meet the community's need for this medicine. In the first step, the alternative sources for Taxol supply were recognized, such as Taxus genus, other plant genera, and endophytic fungi. In the next step, the biosynthetic pathways of Taxol or related metabolites were manipulated in the original organisms, or introduced to heterologous systems and then were manipulated in them. Here, a range of metabolic manipulating approaches have been successfully developed to redirect the metabolic flux toward Taxol, including promoter engineering, enzyme engineering, overexpressing the bottleneck enzymes, over- or down-regulation of transcription factors, activation of the cryptic genes, removing/minimizing the flux for competing pathways, tunable regulation of the metabolic pathway, and increasing the supplies of precursors. In this review, we discuss research progress on the alternative Taxol sources and its metabolic manipulating, and we suggest recent challenges and future perspectives.
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Affiliation(s)
- Mohammad Sabzehzari
- Division of Plant Molecular Genetics, Department of Agronomy and Plant Breeding, Agricultural and Natural Resources College, University of Tehran, Karaj, Iran.
| | - Masoumeh Zeinali
- Department of Agronomy and Plant Breeding, Faculty of Agricultural, University of Mohaghegh Ardabili, Iran
| | - Mohammad Reza Naghavi
- Division of Plant Molecular Genetics, Department of Agronomy and Plant Breeding, Agricultural and Natural Resources College, University of Tehran, Karaj, Iran.
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Bahrani S, Ghaedi M, Arabi M. Construction of molecularly imprinted nanoparticles by employing ultrasound waves for selective determination of doxepin from human plasma samples: Modeling and optimization. Biomed Chromatogr 2019; 33:e4675. [PMID: 31378955 DOI: 10.1002/bmc.4675] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 07/08/2019] [Accepted: 07/31/2019] [Indexed: 12/19/2022]
Abstract
In this work, molecularly imprinted nanoparticles (MINPs) were applied as selective adsorbent for ultrasound-assisted micro-solid-phase extraction (UAMSPE) of doxepin (DP) from human plasma samples, which was then cleaned up, pre-concentrated and subjected to HPLC. The MINPs were synthesized based on a non-covalent approach by precipitation polymerization utilizing methacrylic acid and styrene as functional monomers, DP as template, ethylene glycol dimethacrylate as cross-linker and 2,2-azobisisobutyronitrile (AIBN) as initiator. The obtained MINPs were characterized by Fourier transform-infrared and field emission scanning electron microscopy. Factors influencing the efficiency of UAMSPE such as sonication time, volume of eluent solvent and amount of sorbent were investigated using a central composite design and the optimal points were identified as 4 min of sonication time, 380 μL of eluent solvent and 30 mg of sorbent. Under optimized conditions, the proposed method has linear responses in the range of 0.2-2000 ng mL-1 , with a satisfactory limit of detection of 0.04 ng mL-1 and limit of quantification of 0.11 ng mL-1 .
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Affiliation(s)
- Sonia Bahrani
- Department of Chemistry, Yasouj University, Yasouj, Iran
| | | | - Maryam Arabi
- Department of Chemistry, Yasouj University, Yasouj, Iran
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Nasiri J, Motamedi E, Naghavi MR, Ghafoori M. Removal of crystal violet from water using β-cyclodextrin functionalized biogenic zero-valent iron nanoadsorbents synthesized via aqueous root extracts of Ferula persica. JOURNAL OF HAZARDOUS MATERIALS 2019; 367:325-338. [PMID: 30599405 DOI: 10.1016/j.jhazmat.2018.12.079] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Revised: 12/19/2018] [Accepted: 12/20/2018] [Indexed: 05/26/2023]
Abstract
Three brands of zero-valent iron nanoparticles (Fe° NPs) were biologically/chemically fabricated, and sorption capacities thereof in crystal violet (CV) water remediation were compared and contrasted. Meanwhile, the β-Cyclodextrin (βCD) amounts effects on the size and structure of Fe° NPs were evaluated via field emission scanning electron microscopy, elemental mapping, X-ray diffraction, transmission electron microscopy, Brunauer-Emmett-Teller, and zeta potential analyses. Separated spherical ultra-small Fe° NPs (6.1 nm) with a narrower size distribution could be produced at higher dosages of βCD. The green synthesized Fe° NPs showed better performance than those produced chemically in CV removal (39.5% vs. 14.7%, respectively) because of their higher surface area (46.68 m2/g vs. 34.38 m2/g, respectively). βCD functionalized Fe° NPs could double nanoadsorbent proficiency in CV removal (99.8%), possibly because of simultaneous decrement in the nanoparticles sizes and increment in the active sorption sites of nanoadsorbent. The effects of nanoadsorbent amount, pH, contact time, temperature, and initial concentration on the sorption were all scrutinized. The adsorption kinetics were found to be finely fitted with the pseudo-second-order model. Adsorption capacity calculated by Langmuir model was 454.5 mg/g (20 °C, at pH 9.0). The current green, reusable, and low-cost nanoadsorbent could be utilized proficiently for practical water remediation.
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Affiliation(s)
- Jaber Nasiri
- Department of Agronomy and Plant Breeding, Agricultural and Natural Resources College, University of Tehran, Karaj, Iran
| | - Elaheh Motamedi
- Department of Nanotechnology, Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.
| | - Mohammad Reza Naghavi
- Department of Agronomy and Plant Breeding, Agricultural and Natural Resources College, University of Tehran, Karaj, Iran.
| | - Mahdiye Ghafoori
- Department of Agronomy and Plant Breeding, Agricultural and Natural Resources College, University of Tehran, Karaj, Iran
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Sabzehzari M, Naghavi MR. Phyto-miRNAs-based regulation of metabolites biosynthesis in medicinal plants. Gene 2019; 682:13-24. [PMID: 30267812 DOI: 10.1016/j.gene.2018.09.049] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 09/20/2018] [Accepted: 09/25/2018] [Indexed: 12/20/2022]
Abstract
Medicinal plants, are known to produce a wide range of plant secondary metabolites (PSMs) applied as insecticides, drugs, dyes and toxins in agriculture, medicine, industry and bio-warfare plus bio-terrorism, respectively. However, production of PSMs is usually in small quantities, so we need to find novel ways to increase both quantity and quality of them. Fortunately, biotechnology suggests several options through which secondary metabolism in plants can be engineered in innovative ways to: 1) over-produce the useful metabolites, 2) down-produce the toxic metabolites, 3) produce the new metabolites. Among the ways, RNA interference (RNAi) technology which involves gene-specific regulation by small non-coding RNAs (sncRNAs) have been recently emerged as a promising tool for plant biotechnologist, not only to decipher the function of plant genes, but also for development of the plants with improved and novel traits through manipulation of both desirable and undesirable genes. Among sncRNAs, miRNAs have been recorded various regulatory roles in plants such as development, signal transduction, response to environmental stresses, metabolism. Certainly, the use of miRNAs in metabolic engineering requires identification of miRNAs involved in metabolites biosynthesis, understanding of the biosynthetic pathways, as well as the identification of key points of the pathways in which the miRNAs have their own effect. Thus, we firstly consider these three issues on metabolic engineering of medicinal plants. Our review shows, application of miRNAs can open a novel perspective to metabolic engineering of medicinal plants.
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Affiliation(s)
- M Sabzehzari
- Department of Agronomy and Plant Breeding, College of Agriculture and Natural Resources, University of Tehran, Iran
| | - M R Naghavi
- Department of Agronomy and Plant Breeding, College of Agriculture and Natural Resources, University of Tehran, Iran.
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Sabzehzari M, Naghavi M. Phyto-miRNA: A molecule with beneficial abilities for plant biotechnology. Gene 2019; 683:28-34. [DOI: 10.1016/j.gene.2018.09.054] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Accepted: 09/27/2018] [Indexed: 12/13/2022]
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Preparation of a New Polymerized Ionic Liquid-Modified Magnetic Nano Adsorbent for the Extraction and Preconcentration of Nitrate and Nitrite Anions from Environmental Water Samples. Chromatographia 2018. [DOI: 10.1007/s10337-018-3590-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Chen Y, Chen Z. COF-1-modified magnetic nanoparticles for highly selective and efficient solid-phase microextraction of paclitaxel. Talanta 2017; 165:188-193. [DOI: 10.1016/j.talanta.2016.12.051] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Revised: 12/19/2016] [Accepted: 12/20/2016] [Indexed: 11/28/2022]
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Co-solvent enhanced adsorption with magnetic velvet-like carbon nitride for high efficiency solid phase extraction. Anal Chim Acta 2017; 960:63-71. [DOI: 10.1016/j.aca.2017.01.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Revised: 12/11/2016] [Accepted: 01/12/2017] [Indexed: 12/15/2022]
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Li D, Zhu J, Wang M, Bi W, Huang X, Chen DDY. Extraction of trace polychlorinated biphenyls in environmental waters by well-dispersed velvet-like magnetic carbon nitride nanocomposites. J Chromatogr A 2017; 1491:27-35. [DOI: 10.1016/j.chroma.2017.02.048] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 02/21/2017] [Indexed: 11/28/2022]
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Nasiri J, Naghavi MR, Motamedi E, Alizadeh H, Moghadam MRF, Nabizadeh M, Mashouf A. Carbonaceous sorbents alongside an optimized magnetic solid phase extraction (MSPE) towards enrichment of crude Paclitaxel extracts from callus cultures of Taxus baccata. J Chromatogr B Analyt Technol Biomed Life Sci 2017. [DOI: 10.1016/j.jchromb.2016.10.029] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Nasiri J, Naghavi MR, Alizadeh H, Moghadam MRF. Seasonal-based temporal changes fluctuate expression patterns of TXS, DBAT, BAPT and DBTNBT genes alongside production of associated taxanes in Taxus baccata. PLANT CELL REPORTS 2016; 35:1103-1119. [PMID: 26883228 DOI: 10.1007/s00299-016-1941-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Accepted: 01/24/2016] [Indexed: 06/05/2023]
Abstract
Environmental cues have synergistic or antagonistic regulatory roles on transcription activity and taxanes accumulation in yew, though DBAT activity is less influenced, could be accordingly a rate-limiting enzyme. The current work was undertaken to elucidate the consequences of some environmental cues (i.e., day length, temperature, sunlight and relative humidity) on the expression patterns of TXS, DBAT, BAPT and DBTNBT genes contributed to the taxol biosynthetic pathway along with the accumulation of some taxanes in needles and stems of Taxus baccata over year 2013-2014. In both tissues, light intensity and temperature correlated with the production of 10-DAB III and total taxanes, and TXS activity, while a lack of significant association was deduced for day length and relative humidity. Furthermore, in both tissues, a weak correlation was observed between BAC III and light intensity, temperature, day length and relative humidity, and the corresponding gene, DBAT. Surprisingly, DBAT activity was not co-induced with TXS in both tissues, and remained expressed at basal levels over year, supporting that the conversion of 10-DAB III into BAC III could presumably be a rate limiting step in the taxol biosynthetic pathway. Similar to BAC III, no strong correlation was detected between production of taxol in both tissues and all the meteorological data, while the corresponding genes BAPT and DBTNBT, in some cases, exhibited significant correlated results. Notably, despite higher activities of BAPT and DBTNBT in both tissues over year, taxol production was still in small quantities, probably owing to the low amounts of its precursors rather than low volumes of BAPT and DBTNBT transcripts. The results, altogether, could provide us new insights towards the potential regulatory roles of environmental cues on the production of taxanes in yew trees.
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Affiliation(s)
- Jaber Nasiri
- Division of Plant Molecular Genetics, Department of Agronomy and Plant Breeding, Agricultural and Natural Resources College, University of Tehran, Karaj, Iran.
| | - Mohammad Reza Naghavi
- Division of Plant Molecular Genetics, Department of Agronomy and Plant Breeding, Agricultural and Natural Resources College, University of Tehran, Karaj, Iran.
| | - Houshang Alizadeh
- Division of Plant Molecular Genetics, Department of Agronomy and Plant Breeding, Agricultural and Natural Resources College, University of Tehran, Karaj, Iran
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