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Chriscensia E, Nathanael J, Perwitasari U, Putra ABN, Adiyanto SA, Hartrianti P. Potential Utilisation of Theobroma cacao Pod Husk Extract: Protective Capability Evaluation Against Pollution Models and Formulation into Niosomes. Trop Life Sci Res 2024; 35:107-140. [PMID: 39234471 PMCID: PMC11371407 DOI: 10.21315/tlsr2024.35.2.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 12/13/2023] [Indexed: 09/06/2024] Open
Abstract
Theobroma cacao L. beans have long been used for food and medicinal purposes. However, up to 52%-76% of Theobroma cacao L. fruit comprises its husk, which are regarded as waste and oftentimes thrown away. In fact, cocoa pod husks actually possess a high antioxidant capacity. Antioxidants can be used to fight free radicals that are produced by environmental pollution. In order to simulate the effects of pollution, H2O2 and cigarette smoke extract models were used respectively. However, the antioxidant properties are limited on the skin due to poor penetration. Hence, in order to increase the topical penetration, cocoa pod husk extract (CPHE) was also formulated into niosomes thereafter. CPHE was characterised using total phenolic content, total flavonoid content and three antioxidant assays. After that, cytotoxicity and cytoprotective assay were conducted on HaCaT cells, which represent the skin epidermis. CPHE was then formulated into niosomes subjected to stability and penetration studies for three months. CPHE was shown to contain 164.26 ± 1.067 mg GAE/g extract in total phenolic content and 10.72 ± 0.32 mg QCE/g extract in total flavonoid content. In addition, our results showed that CPHE possesses similar antioxidant capacity through 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay, around eight-fold less through ABTS assay and approximately twelve-fold less through Ferric reducing power (FRAP) assay. The extract also showed comparable cytoprotective properties to that of standard (ascorbic acid). The niosome formulation was also able to increase the penetration compared to unencapsulated extract, as well as possess a good stability profile. This showed that CPHE, in fact, could be repurposed for other uses other than being thrown away as waste.
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Affiliation(s)
- Erika Chriscensia
- Department of Pharmacy, School of Life Sciences, Indonesia International Institute for Life Sciences (i3L), Jl. Pulomas Barat No. Kav. 88, RT.4/RW.9, Kayu Putih, Kec. Pulo Gadung, 13210 Jakarta, Indonesia
| | - Joshua Nathanael
- Department of Pharmacy, School of Life Sciences, Indonesia International Institute for Life Sciences (i3L), Jl. Pulomas Barat No. Kav. 88, RT.4/RW.9, Kayu Putih, Kec. Pulo Gadung, 13210 Jakarta, Indonesia
| | - Urip Perwitasari
- Research Centre for Applied Microbiology, National Research and Innovation Agency (BRIN), 16911 Cibinong, Indonesia
| | - Agus Budiawan Naro Putra
- Research Centre for Pharmaceutical Ingredients and Traditional Medicine, National Research and Innovation Agency (BRIN), 16911 Cibinong, Indonesia
| | - Shakila Angjaya Adiyanto
- Department of Pharmacy, School of Life Sciences, Indonesia International Institute for Life Sciences (i3L), Jl. Pulomas Barat No. Kav. 88, RT.4/RW.9, Kayu Putih, Kec. Pulo Gadung, 13210 Jakarta, Indonesia
| | - Pietradewi Hartrianti
- Department of Pharmacy, School of Life Sciences, Indonesia International Institute for Life Sciences (i3L), Jl. Pulomas Barat No. Kav. 88, RT.4/RW.9, Kayu Putih, Kec. Pulo Gadung, 13210 Jakarta, Indonesia
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Gupta SK, Graf T, Edelmann FT, Seelmann H, Reintinger M, Hilringhaus L, Bergmann F, Wiedmann M, Falkenstein R, Wegele H, Yuk IH, Leiss M. A fast and sensitive high-throughput assay to assess polysorbate-degrading hydrolytic activity in biopharmaceuticals. Eur J Pharm Biopharm 2023; 187:120-129. [PMID: 37116764 DOI: 10.1016/j.ejpb.2023.04.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 04/17/2023] [Accepted: 04/22/2023] [Indexed: 04/30/2023]
Abstract
Hydrolysis of polysorbate in biopharmaceutical products has been ascribed to the enzymatic activity from trace levels of residual host cell proteins. In recent years, significant efforts to identify the causative enzymes typically used elaborate, material-intensive and time-consuming approaches. Therefore, the lack of fast and sensitive assays to monitor their activity remains a major bottleneck for supporting process optimization and troubleshooting activities where time and sample throughput are crucial constraints. To address this bottleneck, we developed a novel Electrochemiluminescence-based Polysorbase Activity (EPA) assay to measure hydrolytic activities in biotherapeutics throughout the drug substance manufacturing process. By combining the favorable features of an in-house designed surrogate substrate with a well-established detection platform, the method yields fast (∼36 h turnaround time) and highly sensitive readouts compatible with high-throughput testing. The assay capability for detecting substrate conversion in a precise and reliable manner was demonstrated by extensive qualification studies and by employing a number of recombinant hydrolases associated with polysorbate hydrolysis. In addition, high assay sensitivity and wide applicability were confirmed for in-process pool samples of three different antibody products by performing a head-to-head comparison between this method and an established liquid chromatography - mass spectrometry based assay for the quantification of free fatty acids. Overall, our results suggest that this new approach is well-suited to resolve differences in hydrolytic activity through all stages of purification.
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Affiliation(s)
- Sanjay K Gupta
- Pharma Technical Development, Roche Diagnostics GmbH, Nonnenwald 2, 82377 Penzberg, Germany
| | - Tobias Graf
- Pharma Technical Development, Roche Diagnostics GmbH, Nonnenwald 2, 82377 Penzberg, Germany
| | - Franziska T Edelmann
- Pharma Technical Development, Roche Diagnostics GmbH, Nonnenwald 2, 82377 Penzberg, Germany
| | - Helen Seelmann
- Pharma Technical Development, Roche Diagnostics GmbH, Nonnenwald 2, 82377 Penzberg, Germany
| | - Markus Reintinger
- Reagent Research and Design, Roche Diagnostics GmbH, Nonnenwald 2, Penzberg 82377, Germany
| | - Lars Hilringhaus
- Reagent Research and Design, Roche Diagnostics GmbH, Nonnenwald 2, Penzberg 82377, Germany
| | - Frank Bergmann
- Reagent Research and Design, Roche Diagnostics GmbH, Nonnenwald 2, Penzberg 82377, Germany
| | - Michael Wiedmann
- Pharma Technical Development, Roche Diagnostics GmbH, Nonnenwald 2, 82377 Penzberg, Germany
| | - Roberto Falkenstein
- Pharma Technical Development, Roche Diagnostics GmbH, Nonnenwald 2, 82377 Penzberg, Germany
| | - Harald Wegele
- Pharma Technical Development, Roche Diagnostics GmbH, Nonnenwald 2, 82377 Penzberg, Germany
| | - Inn H Yuk
- Pharma Technical Development, Genentech, 1 DNA Way, South San Francisco, California, USA
| | - Michael Leiss
- Pharma Technical Development, Roche Diagnostics GmbH, Nonnenwald 2, 82377 Penzberg, Germany.
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Arueya GL, Sharon OO. Characterization of Dutch-Cocoa produced using potash extract from cocoa pod husk as an alkalizing bioresource. BRAZILIAN JOURNAL OF FOOD TECHNOLOGY 2023. [DOI: 10.1590/1981-6723.02322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
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Sampaio CS, Angelotti JAF, Fernandez-Lafuente R, Hirata DB. Lipase immobilization via cross-linked enzyme aggregates: Problems and prospects - A review. Int J Biol Macromol 2022; 215:434-449. [PMID: 35752332 DOI: 10.1016/j.ijbiomac.2022.06.139] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 06/06/2022] [Accepted: 06/20/2022] [Indexed: 02/08/2023]
Abstract
In this review we have focused on the preparation of cross-linked enzyme aggregates (CLEAs) from lipases, as these are among the most used enzyme in bioprocesses. This immobilization method is considered very attractive due to preparation simplicity, non-use of supports and the possibility of using crude enzyme extracts. CLEAs provide lipase stabilization under extreme temperature or pH conditions or in the presence of organic solvents, in addition to preventing enzyme leaching in aqueous medium. However, it presents some problems in the preparation and limitations in their use. The problems in preparation refer mainly to the crosslinking step, and may be solved using an aminated feeder. The problems in handling have been tackled designing magnetic-CLEAs or trapping the CLEAs in particles with better mechanical properties, the substrate diffusion problems has been reduced by producing more porous-CLEAs, etc. The enzyme co-immobilization using combi-CLEAs is also a new tendency. Therefore, this review explores the CLEAs methodology aimed at lipase immobilization and its applications.
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Affiliation(s)
- Camila S Sampaio
- Postgraduate Program in Biotechnology, Federal University of Alfenas, 37130-001 Alfenas, MG, Brazil
| | - Joelise A F Angelotti
- Postgraduate Program in Biotechnology, Federal University of Alfenas, 37130-001 Alfenas, MG, Brazil
| | - Roberto Fernandez-Lafuente
- Department of Biocatalysis, ICP-CSIC, Campus UAM-CSIC, Cantoblanco, 28049 Madrid, Spain.; Center of Excellence in Bionanoscience Research, Member of The External Scientific Advisory Board, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - Daniela B Hirata
- Postgraduate Program in Biotechnology, Federal University of Alfenas, 37130-001 Alfenas, MG, Brazil.
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Acoustic Characterization and Modeling of Silicone-Bonded Cocoa Crop Waste Using a Model Based on the Gaussian Support Vector Machine. FIBERS 2022. [DOI: 10.3390/fib10030025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The sustainable management of waste from agricultural crops represents an urgent challenge. One possible solution considers waste as possible secondary raw materials for specific uses. Among these, the use of agricultural waste as a product for the assembly of panels for the sound absorption of living environments represents a particularly suitable solution. In this study, the acoustic properties of the cocoa pod husk were evaluated, using silicone as a binder. Different proportions of materials and thicknesses were evaluated. A Support Vector Machine (SVM)-based model with a Gaussian kernel was then used to predict the acoustic performance of composite materials. The results obtained suggest the adoption of this material for the acoustic correction of living environments and this methodology for the prediction of the acoustic behavior of materials.
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Priya, Gogate PR. Ultrasound-Assisted Intensification of β-Glucosidase Enzyme Activity in Free and Immobilized Forms. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c04360] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Priya
- Chemical Engineering Department, Institute of Chemical Technology, Matunga, Mumbai 400019, India
| | - Parag R. Gogate
- Chemical Engineering Department, Institute of Chemical Technology, Matunga, Mumbai 400019, India
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Cross-linked β-Mannanase Aggregates: Preparation, Characterization, and Application for Producing Partially Hydrolyzed Guar Gum. Appl Biochem Biotechnol 2022; 194:1981-2004. [DOI: 10.1007/s12010-022-03807-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/31/2021] [Indexed: 11/02/2022]
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Oliart-Ros RM, Badillo-Zeferino GL, Quintana-Castro R, Ruíz-López II, Alexander-Aguilera A, Domínguez-Chávez JG, Khan AA, Nguyen DD, Nadda AK, Sánchez-Otero MG. Production and Characterization of Cross-Linked Aggregates of Geobacillus thermoleovorans CCR11 Thermoalkaliphilic Recombinant Lipase. Molecules 2021; 26:7569. [PMID: 34946651 PMCID: PMC8708040 DOI: 10.3390/molecules26247569] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Revised: 11/09/2021] [Accepted: 11/16/2021] [Indexed: 12/03/2022] Open
Abstract
Immobilization of enzymes has many advantages for their application in biotechnological processes. In particular, the cross-linked enzyme aggregates (CLEAs) allow the production of solid biocatalysts with a high enzymatic loading and the advantage of obtaining derivatives with high stability at low cost. The purpose of this study was to produce cross-linked enzymatic aggregates (CLEAs) of LipMatCCR11, a 43 kDa recombinant solvent-tolerant thermoalkaliphilic lipase from Geobacillus thermoleovorans CCR11. LipMatCCR11-CLEAs were prepared using (NH4)2SO4 (40% w/v) as precipitant agent and glutaraldehyde (40 mM) as cross-linker, at pH 9, 20 °C. A U10(56) uniform design was used to optimize CLEA production, varying protein concentration, ammonium sulfate %, pH, glutaraldehyde concentration, temperature, and incubation time. The synthesized CLEAs were also analyzed using scanning electron microscopy (SEM) that showed individual particles of <1 µm grouped to form a superstructure. The cross-linked aggregates showed a maximum mass activity of 7750 U/g at 40 °C and pH 8 and retained more than 20% activity at 100 °C. Greater thermostability, resistance to alkaline conditions and the presence of organic solvents, and better durability during storage were observed for LipMatCCR11-CLEAs in comparison with the soluble enzyme. LipMatCCR11-CLEAs presented good reusability by conserving 40% of their initial activity after 9 cycles of reuse.
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Affiliation(s)
- Rosa-María Oliart-Ros
- Unidad de Investigación y Desarrollo en Alimentos, Tecnológico Nacional de México, Instituto Tecnológico de Veracruz, M.A. De Quevedo 2779, Veracruz C.P. 91897, Ver., Mexico; (R.-M.O.-R.); (G.-L.B.-Z.)
| | - Giselle-Lilian Badillo-Zeferino
- Unidad de Investigación y Desarrollo en Alimentos, Tecnológico Nacional de México, Instituto Tecnológico de Veracruz, M.A. De Quevedo 2779, Veracruz C.P. 91897, Ver., Mexico; (R.-M.O.-R.); (G.-L.B.-Z.)
| | - Rodolfo Quintana-Castro
- Facultad de Bioanálisis, Universidad Veracruzana, Carmen Serdán Esq. Iturbide, Veracruz C.P. 91700, Ver., Mexico; (R.Q.-C.); (A.A.-A.); (J.-G.D.-C.)
| | - Irving-Israel Ruíz-López
- Facultad de Ingeniería Química, Benemérita Universidad Autónoma de Puebla, Av. San Claudio y 18 Sur, Ciudad Universitaria, Puebla C.P. 72570, Pue., Mexico;
| | - Alfonso Alexander-Aguilera
- Facultad de Bioanálisis, Universidad Veracruzana, Carmen Serdán Esq. Iturbide, Veracruz C.P. 91700, Ver., Mexico; (R.Q.-C.); (A.A.-A.); (J.-G.D.-C.)
| | - Jorge-Guillermo Domínguez-Chávez
- Facultad de Bioanálisis, Universidad Veracruzana, Carmen Serdán Esq. Iturbide, Veracruz C.P. 91700, Ver., Mexico; (R.Q.-C.); (A.A.-A.); (J.-G.D.-C.)
| | - Azmat Ali Khan
- Pharmaceutical Biotechnology Laboratory, Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Dinh Duc Nguyen
- Department of Environmental and Energy Engineering, Kyonggi University, 154-42 Gwanggyosan-ro, Yeongtong-gu, Suwon-si 16227, Gyeonggi-do, Korea;
- Faculty of Environmental and Food Engineering, Nguyen Tat Thanh University, 300A Nguyen Tat Thanh, District 4, Ho Chi Minh City 755414, Vietnam
| | - Ashok Kumar Nadda
- Department of Biotechnology and Bioinformatics, Faculty of Biotechnology, Jaypee University of Information Technology, Waknaghat, Solan, Himachal Pradesh 173 234, India
| | - María-Guadalupe Sánchez-Otero
- Facultad de Bioanálisis, Universidad Veracruzana, Carmen Serdán Esq. Iturbide, Veracruz C.P. 91700, Ver., Mexico; (R.Q.-C.); (A.A.-A.); (J.-G.D.-C.)
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Delgado-Ospina J, Martuscelli M, Grande-Tovar CD, Lucas-González R, Molina-Hernandez JB, Viuda-Martos M, Fernández-López J, Pérez-Álvarez JÁ, Chaves-López C. Cacao Pod Husk Flour as an Ingredient for Reformulating Frankfurters: Effects on Quality Properties. Foods 2021; 10:foods10061243. [PMID: 34070789 PMCID: PMC8229612 DOI: 10.3390/foods10061243] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 05/25/2021] [Accepted: 05/27/2021] [Indexed: 01/10/2023] Open
Abstract
The cocoa pod husk is considered a source of dietary fiber with a high content of water-soluble pectins, bioactive compounds which should be viewed as a by-product with the potential to be incorporated into food. This study aimed to investigate the effect of adding different cocoa pod husk flour (CPHF) levels as a starch replacement for reformulating frankfurters. Results showed that the addition of 1.5 and 3.0% pod husk proportionally increased the frankfurter’s fiber content by 0.49 ± 0.08 and 0.96 ± 0.19 g/100 g, which is acceptable for a product that does not contain fiber. Textural properties and sensory characteristics were affected when substituting the starch with CPHF, either totally or partially, although these samples had higher water content, hardness, and adhesiveness while springiness decreased. Non-adverse effects of nitrite on polyphenolic compounds content were evidenced in samples enriched with CPHF. The incorporation of CPHF did not significantly affect the color parameters (ΔE < 3). Finally, the panelists indicated a sensation of the unsalted sausage, suggesting that CPHF may have natural mucoadhesion properties. In conclusion, in formulated meat products such as sausages, plant co-products such as cacao pod husks could be a valid new ingredient to improve technological parameters, functional characteristics, and stability.
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Affiliation(s)
- Johannes Delgado-Ospina
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Via R. Balzarini 1, 64100 Teramo, Italy
- Grupo de Investigación Biotecnología, Facultad de Ingeniería, Universidad de San Buenaventura Cali, Carrera 122 # 6-65, Cali 76001, Colombia
| | - Maria Martuscelli
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Via R. Balzarini 1, 64100 Teramo, Italy
| | - Carlos David Grande-Tovar
- Grupo de Investigación de Fotoquímica y Fotobiología, Universidad del Atlántico, Carrera 30 # 8-49, Puerto Colombia 081008, Colombia
| | - Raquel Lucas-González
- IPOA Research Group, Centro de investigación e Innovación Agroalimentaria y Agroambiental de la UMH (CIAGRO), Miguel Hernández University, Orihuela, CYTED-Healthy Meat. 119RT0568 "Productos Cárnicos más Saludables", 03312 Alicante, Spain
| | - Junior Bernardo Molina-Hernandez
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Via R. Balzarini 1, 64100 Teramo, Italy
| | - Manuel Viuda-Martos
- IPOA Research Group, Centro de investigación e Innovación Agroalimentaria y Agroambiental de la UMH (CIAGRO), Miguel Hernández University, Orihuela, CYTED-Healthy Meat. 119RT0568 "Productos Cárnicos más Saludables", 03312 Alicante, Spain
| | - Juana Fernández-López
- IPOA Research Group, Centro de investigación e Innovación Agroalimentaria y Agroambiental de la UMH (CIAGRO), Miguel Hernández University, Orihuela, CYTED-Healthy Meat. 119RT0568 "Productos Cárnicos más Saludables", 03312 Alicante, Spain
| | - José Ángel Pérez-Álvarez
- IPOA Research Group, Centro de investigación e Innovación Agroalimentaria y Agroambiental de la UMH (CIAGRO), Miguel Hernández University, Orihuela, CYTED-Healthy Meat. 119RT0568 "Productos Cárnicos más Saludables", 03312 Alicante, Spain
- Faculty of Science, King Abdelaziz University, Jedda 21589, Saudi Arabia
| | - Clemencia Chaves-López
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Via R. Balzarini 1, 64100 Teramo, Italy
- IPOA Research Group, Centro de investigación e Innovación Agroalimentaria y Agroambiental de la UMH (CIAGRO), Miguel Hernández University, Orihuela, CYTED-Healthy Meat. 119RT0568 "Productos Cárnicos más Saludables", 03312 Alicante, Spain
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Abstract
The aim of this work was to evaluate, by an untargeted metabolomics approach, changes of milk metabolites induced by the replacement of soybean hulls with cocoa husks in the ewes’ diet. Animals were fed with a soybean diet integrated with 50 or 100 g/d of cacao husks. Milk samples were analyzed by an ultra high performance liquid chromatograph coupled to a time of flight mass spectrometer (UHPLC-QTOF-MS) platform. Multivariate statistical analysis showed that the time of sampling profoundly affected metabolite levels, while differences between treatments were evident at the fourth week of sampling. Cocoa husks seem to induce level changes of milk metabolites implicated in the thyroid hormone metabolism and ubiquinol-10 biosynthesis.
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Ogidi CO, Abioye SA, Akinyemi DD, Fadairo FB, Bolaniran T, Akinyele BJ. Bioactivity assessment of ethanolic extracts from Theobroma cacao and Cola spp. wastes after solid state fermentation by Pleurotus ostreatus and Calocybe indica. ADVANCES IN TRADITIONAL MEDICINE 2021. [DOI: 10.1007/s13596-020-00543-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Dual miRNases for Triple Incision of miRNA Target: Design Concept and Catalytic Performance. Molecules 2020; 25:molecules25102459. [PMID: 32466298 PMCID: PMC7287882 DOI: 10.3390/molecules25102459] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 05/18/2020] [Accepted: 05/21/2020] [Indexed: 02/06/2023] Open
Abstract
Irreversible destruction of disease-associated regulatory RNA sequences offers exciting opportunities for safe and powerful therapeutic interventions against human pathophysiology. In 2017, for the first time we introduced miRNAses–miRNA-targeted conjugates of a catalytic peptide and oligonucleotide capable of cleaving an miRNA target. Herein, we report the development of Dual miRNases against oncogenic miR-21, miR-155, miR-17 and miR-18a, each containing the catalytic peptide placed in-between two short miRNA-targeted oligodeoxyribonucleotide recognition motifs. Substitution of adenines with 2-aminoadenines in the sequence of oligonucleotide “shoulders” of the Dual miRNase significantly enhanced the efficiency of hybridization with the miRNA target. It was shown that sequence-specific cleavage of the target by miRNase proceeded metal-independently at pH optimum 5.5–7.5 with an efficiency varying from 15% to 85%, depending on the miRNA sequence. A distinct advantage of the engineered nucleases is their ability to additionally recruit RNase H and cut miRNA at three different locations. Such cleavage proceeds at the central part by Dual miRNase, and at the 5′- and 3′-regions by RNase H, which significantly increases the efficiency of miRNA degradation. Due to increased activity at lowered pH Dual miRNases could provide an additional advantage in acidic tumor conditions and may be considered as efficient tumor-selective RNA-targeted therapeutic.
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Gupta MN, Perwez M, Sardar M. Protein crosslinking: Uses in chemistry, biology and biotechnology. BIOCATAL BIOTRANSFOR 2020. [DOI: 10.1080/10242422.2020.1733990] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
| | - Mohammad Perwez
- Department of Biosciences, Jamia Millia Islamia, New Delhi, India
| | - Meryam Sardar
- Department of Biosciences, Jamia Millia Islamia, New Delhi, India
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Nadar SS, Pawar RG, Rathod VK. Recent advances in enzyme extraction strategies: A comprehensive review. Int J Biol Macromol 2017; 101:931-957. [DOI: 10.1016/j.ijbiomac.2017.03.055] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 03/07/2017] [Accepted: 03/10/2017] [Indexed: 12/19/2022]
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