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Yang Y, Lu YT, Zeng K, Heinze T, Groth T, Zhang K. Recent Progress on Cellulose-Based Ionic Compounds for Biomaterials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2000717. [PMID: 32270900 DOI: 10.1002/adma.202000717] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 02/25/2020] [Accepted: 02/26/2020] [Indexed: 05/06/2023]
Abstract
Glycans play important roles in all major kingdoms of organisms, such as archea, bacteria, fungi, plants, and animals. Cellulose, the most abundant polysaccharide on the Earth, plays a predominant role for mechanical stability in plants, and finds a plethora of applications by humans. Beyond traditional use, biomedical application of cellulose becomes feasible with advances of soluble cellulose derivatives with diverse functional moieties along the backbone and modified nanocellulose with versatile functional groups on the surface due to the native features of cellulose as both cellulose chains and supramolecular ordered domains as extractable nanocellulose. With the focus on ionic cellulose-based compounds involving both these groups primarily for biomedical applications, a brief introduction about glycoscience and especially native biologically active glycosaminoglycans with specific biomedical application areas on humans is given, which inspires further development of bioactive compounds from glycans. Then, both polymeric cellulose derivatives and nanocellulose-based compounds synthesized as versatile biomaterials for a large variety of biomedical applications, such as for wound dressings, controlled release, encapsulation of cells and enzymes, and tissue engineering, are separately described, regarding the diverse routes of synthesis and the established and suggested applications for these highly interesting materials.
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Affiliation(s)
- Yang Yang
- Wood Technology and Wood Chemistry, University of Goettingen, Büsgenweg 4, Göttingen, 37077, Germany
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Wushan Road 381, Guangzhou, 510640, P. R. China
| | - Yi-Tung Lu
- Department Biomedical Materials, Institute of Pharmacy, Martin Luther University Halle-Wittenberg, Heinrich-Damerow-Strasse 4, Halle (Saale), 06120, Germany
| | - Kui Zeng
- Wood Technology and Wood Chemistry, University of Goettingen, Büsgenweg 4, Göttingen, 37077, Germany
| | - Thomas Heinze
- Institute of Organic Chemistry and Macromolecular Chemistry, Friedrich Schiller University of Jena, Centre of Excellence for Polysaccharide Research, Humboldt Straße 10, Jena, D-07743, Germany
| | - Thomas Groth
- Department Biomedical Materials, Institute of Pharmacy, Martin Luther University Halle-Wittenberg, Heinrich-Damerow-Strasse 4, Halle (Saale), 06120, Germany
- Interdisciplinary Center of Materials Science, Martin Luther University Halle-Wittenberg, Halle (Saale), 06120, Germany
- Laboratory of Biomedical Nanotechnologies, Institute of Bionic Technologies and Engineering, I. M. Sechenov First Moscow State University, Trubetskaya Street 8, 119991, Moscow, Russian Federation
| | - Kai Zhang
- Wood Technology and Wood Chemistry, University of Goettingen, Büsgenweg 4, Göttingen, 37077, Germany
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Gao T, Mu C, Shi H, Shi L, Mao X, Li G. Embedding Capture-Magneto-Catalytic Activity into a Nanocatalyst for the Determination of Lipid Kinase. ACS APPLIED MATERIALS & INTERFACES 2018; 10:59-65. [PMID: 29231711 DOI: 10.1021/acsami.7b10857] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The use of emerging nanocatalysts to investigate the activity of biocatalysts (protein enzymes, catalytic RNAs, etc.) is increasingly receiving attention from material, analytic, and biomedical scientists. Here, we have first fabricated a three-in-one nanocatalyst, the nitrilotriacetic acid (NTA)-modified magnetite nanoparticle (NTA-MNP), to develop an integrated magneto-colorimetric (MagColor) assay for lipid kinase activity so as to solve the inherent problems in a lipid kinase assay. On the basis of three integrated functions of the NTA-MNPs (capture, magnetic separation, and peroxidase activity), the catalytic activity of lipid kinase is directly converted to colorimetric signals. Therefore, the assay procedure is significantly simplified such that in one step the visual detection of lipid kinase activity is possible. Moreover, the whole system responds sensitively in the case that NTA-MNPs recognize a few numbers of the reaction sites, which efficiently initiates the chromogenic reaction of a large amount of chromogens; thus, the detection limit decreases to 6.5 ± 5.8 fM, about three orders of magnitude lower as compared to that of enzyme-linked immune-sorbent assay. So, by embedding desired functions into nanocatalysts, the assay for biocatalysts becomes easy, which may promisingly provide useful tools for biomedical and clinical research in the future.
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Affiliation(s)
| | - Chaoli Mu
- State Key Laboratory of Pharmaceutical Biotechnology and Collaborative Innovation Center of Chemistry for Life Sciences, Department of Biochemistry, Nanjing University , Nanjing 210093, P. R. China
| | - Hai Shi
- State Key Laboratory of Pharmaceutical Biotechnology and Collaborative Innovation Center of Chemistry for Life Sciences, Department of Biochemistry, Nanjing University , Nanjing 210093, P. R. China
| | - Liu Shi
- State Key Laboratory of Pharmaceutical Biotechnology and Collaborative Innovation Center of Chemistry for Life Sciences, Department of Biochemistry, Nanjing University , Nanjing 210093, P. R. China
| | | | - Genxi Li
- State Key Laboratory of Pharmaceutical Biotechnology and Collaborative Innovation Center of Chemistry for Life Sciences, Department of Biochemistry, Nanjing University , Nanjing 210093, P. R. China
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Yanamandra M, Kole L, Giri A, Mitra S. Development of highly sensitive cell-based AKT kinase ELISA for monitoring PI3K beta activity and compound efficacy. J Immunoassay Immunochem 2017; 38:663-674. [PMID: 29035165 DOI: 10.1080/15321819.2017.1385027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Phosphatidylinositol-3 kinase (PI3K) pathway regulates multiple cellular functions involving cell survival, growth, motility proliferation, apoptosis, and adhesion. These are deregulated in various diseases such as cancer, atherosclerosis, and inflammation. PI3Ks phosphorylate phosphatidylinositol 4,5-biphosphate (PIP2) yielding phosphatidylinositol 3, 4, 5 triphosphate (PIP3) which in turn activate AKT kinase (serine/threonine kinase), the central enzyme in regulation of metabolic functions. Due to their implications in disease pathophysiology, PI3K/AKT inhibitors became attractive targets for pharmaceutical industries. In order to assess the functional response generated by PI3K inhibitors, an appropriate cell-based screening system is essential in any screening cascade. Here we report the development of highly sensitive in-vitro cell-based kinase ELISA which quantifies the phosphorylated AKT kinase (serine 473) and total AKT kinase directly within the cells upon compound treatment. PI3Kβ overexpressing NIH3T3 cells stimulated by lysophosphatidic acid was used for PI3K/Akt pathway activation. Assay performance reliability and robustness were determined by percentage coefficient of variation (%CV) and Z factor which demonstrated an excellent agreement with assay guidelines. This 96-well plate medium throughput assay methodology was used to screen novel molecules and proved a commendable tool to study the mechanism of action property and target engagement of novel PI3K inhibitors in drug discovery.
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Affiliation(s)
- Mahesh Yanamandra
- a Department of In-vitro Biology , GVK Biosciences Private Limited , Hyderabad
| | - Labanyamoy Kole
- b Head R&D at Premas Biotech - Premas Biotech , Gurgaon , India
| | - Archana Giri
- c Centre for Biotechnology, Institute of Science and Technology , Jawaharlal Nehru Technological University , Hyderabad , India
| | - Sayan Mitra
- a Department of In-vitro Biology , GVK Biosciences Private Limited , Hyderabad
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Gul S. Epigenetic assays for chemical biology and drug discovery. Clin Epigenetics 2017; 9:41. [PMID: 28439316 PMCID: PMC5399855 DOI: 10.1186/s13148-017-0342-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2016] [Accepted: 04/12/2017] [Indexed: 12/27/2022] Open
Abstract
The implication of epigenetic abnormalities in many diseases and the approval of a number of compounds that modulate specific epigenetic targets in a therapeutically relevant manner in cancer specifically confirms that some of these targets are druggable by small molecules. Furthermore, a number of compounds are currently in clinical trials for other diseases including cardiovascular, neurological and metabolic disorders. Despite these advances, the approved treatments for cancer only extend progression-free survival for a relatively short time and being associated with significant side effects. The current clinical trials involving the next generation of epigenetic drugs may address the disadvantages of the currently approved epigenetic drugs. The identification of chemical starting points of many drugs often makes use of screening in vitro assays against libraries of synthetic or natural products. These assays can be biochemical (using purified protein) or cell-based (using for example, genetically modified, cancer cell lines or primary cells) and performed in microtiter plates, thus enabling a large number of samples to be tested. A considerable number of such assays are available to monitor epigenetic target activity, and this review provides an overview of drug discovery and chemical biology and describes assays that monitor activities of histone deacetylase, lysine-specific demethylase, histone methyltransferase, histone acetyltransferase and bromodomain. It is of critical importance that an appropriate assay is developed and comprehensively validated for a given drug target prior to screening in order to improve the probability of the compound progressing in the drug discovery value chain.
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Affiliation(s)
- Sheraz Gul
- Fraunhofer Institute for Molecular Biology and Applied Ecology - ScreeningPort, Schnackenburgallee 114, 22525 Hamburg, Germany
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Yanamandra M, Mitra S, Giri A. Development and application of PI3K assays for novel drug discovery. Expert Opin Drug Discov 2014; 10:171-86. [DOI: 10.1517/17460441.2015.997205] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Mahesh Yanamandra
- 1Scientist, GVK Biosciences Private Ltd, Biology, Campus MLR 1, Survey Nos. 125 (part) and 126, IDA Mallapur, Hyderabad, Telangana, 500076, India
- 2Jawaharlal Nehru Technological University, Institute of Science and Technology, Centre for Biotechnology, Kukatpally, Hyderabad, Telangana, 500085, India
| | - Sayan Mitra
- 3GVK Biosciences Private Ltd, Biology, Campus MLR 1, Survey Nos. 125 (part) and 126, IDA Mallapur, Hyderabad, Telangana, 500076, India
| | - Archana Giri
- 4Jawaharlal Nehru Technological University, Institute of Science and Technology, Centre for Biotechnology, Kukatpally, Hyderabad, Telangana, 500085, India
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