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Indla NR, Maruthi Y, Rawat R, Sandeep Kumar T, Ramesh Reddy N, Sharma M, Aminabhavi TM, Kakarla RR, Sainath AVS. Synthesis and biological properties of novel glucose-based fluoro segmented macromolecular architectures. Int J Biol Macromol 2024; 268:131724. [PMID: 38653427 DOI: 10.1016/j.ijbiomac.2024.131724] [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: 01/23/2024] [Revised: 04/12/2024] [Accepted: 04/19/2024] [Indexed: 04/25/2024]
Abstract
The emergence of novel well-defined biological macromolecular architectures containing fluorine moieties displaying superior functionalities can satisfactorily address many biomedical challenges. In this research, ABA- and AB-type glucose-based biological macromolecules were synthesized using acryl-2,3,4,6-tetra-O-acetyl-D-glucopyranoside with pentafluorophenyl (FPM), pentafluorobenzyl (FBM), phenyl (PM) and benzyl (BM) methacrylate-based macro-RAFT agents following RAFT polymerization. The macro-RAFT agents and the corresponding copolymers were characterized by 19F, 1H, and 13C NMR and FTIR spectroscopic techniques to understand the chemical structure, molecular weight by size-exclusion chromatography, thermal analysis by TGA and DSC. Thermal stability (Td5%) of the FPM and FBM fluoro-based polymers was observed in the range of 219-267 °C, while the non-fluoro PM and BM polymers exhibited in the range of 216-264 °C. Among the macro-RAFT agents, PFPM (107 °C, ΔH: 0.613 J/g) and PPM (103 °C, ΔH: 0.455 J/g) showed higher Tm values, while among the block copolymers, PFBM-b-PG (123 °C, ΔH: 0.412 J/g) and PG-b-PFPM-b-PG (126 °C, ΔH: 0.525 J/g) exhibited higher Tm values. PFBMT and PPM macro-RAFT agents, PPM-b-PG and PG-b-PPM-b-PG copolymer spin-coated films showed the highest hydrophobicity (120°) among the synthesized polymers. The block copolymers exhibited self-assembled segregation by using relatively hydrophobic segments as the core and hydrophilic moieties as the corona. Synthesized biological macromolecules exhibit maximum antibacterial activity towards S. aureus than E. coli bacteria. Fluorophenyl (PFPM) and non-fluorobenzyl-based (PBMT) macro-RAFT agents exhibit low IC50 values, suggesting high cytotoxicity. All the triblock copolymers exhibit lesser cytotoxicity than the di-block polymers.
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Affiliation(s)
- Nagamalleswara Rao Indla
- Fluoro-Agrochemicals, Polymers and Functional Materials Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Yeggada Maruthi
- Fluoro-Agrochemicals, Polymers and Functional Materials Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500007, India
| | - Reetika Rawat
- Banasthali Vidyapith, Department of Pharm, Banasthali 304022, Rajasthan, India
| | - T Sandeep Kumar
- Fluoro-Agrochemicals, Polymers and Functional Materials Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500007, India
| | - N Ramesh Reddy
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Manu Sharma
- Banasthali Vidyapith, Department of Pharm, Banasthali 304022, Rajasthan, India
| | - Tejraj M Aminabhavi
- Center for Energy and Environment, School of Advanced Sciences, KLE Technological University, Hubballi 580 031, Karnataka, India; Korea University, Seoul, Republic of Korea.
| | - Raghava Reddy Kakarla
- School Chemical Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia.
| | - Annadanam V Sesha Sainath
- Fluoro-Agrochemicals, Polymers and Functional Materials Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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Chi Y, Li Y, Ding C, Liu X, Luo M, Wang Z, Bi Y, Luo S. Structural and biofunctional diversity of sulfated polysaccharides from the genus Codium (Bryopsidales, Chlorophyta): A review. Int J Biol Macromol 2024; 263:130364. [PMID: 38401579 DOI: 10.1016/j.ijbiomac.2024.130364] [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: 10/16/2023] [Revised: 01/14/2024] [Accepted: 02/20/2024] [Indexed: 02/26/2024]
Abstract
It is believed that polysaccharides will become a focal point for future production of food, pharmaceuticals, and materials due to their ubiquitous and renewable nature, as well as their exceptional properties that have been extensively validated in the fields of nutrition, healthcare, and materials. Sulfated polysaccharides derived from seaweed sources have attracted considerable attention owing to their distinctive structures and properties. The genus Codium, represented by the species C. fragile, holds significance as a vital economic green seaweed and serves as a traditional Chinese medicinal herb. To date, the cell walls of the genus Codium have been found to contain at least four types of sulfated polysaccharides, specifically pyruvylated β-d-galactan sulfates, sulfated arabinogalactans, sulfated β-l-arabinans, and sulfated β-d-mannans. These sulfated polysaccharides exhibit diverse biofunctions, including anticoagulant, immune-enhancing, anticancer, antioxidant activities, and drug-carrying capacity. This review explores the structural and biofunctional diversity of sulfated polysaccharides derived from the genus Codium. Additionally, in addressing the impending challenges within the industrialization of these polysaccharides, encompassing concerns regarding scale-up production and quality control, we outline potential strategies to address these challenges from the perspectives of raw materials, extraction processes, purification technologies, and methods for quality control.
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Affiliation(s)
- Yongzhou Chi
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, Jiangsu 223003, China.
| | - Yang Li
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, Jiangsu 223003, China
| | - Chengcheng Ding
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, Jiangsu 223003, China
| | - Xiao Liu
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, Jiangsu 223003, China
| | - Meilin Luo
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, Jiangsu 223003, China
| | - Zhaoyu Wang
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, Jiangsu 223003, China
| | - Yanhong Bi
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, Jiangsu 223003, China
| | - Si Luo
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huai'an, Jiangsu 223003, China
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Silva AKA, Souza CRDM, Silva HMD, Jales JT, Gomez LADS, da Silveira EJD, Rocha HAO, Souto JT. Anti-Inflammatory Activity of Fucan from Spatoglossum schröederi in a Murine Model of Generalized Inflammation Induced by Zymosan. Mar Drugs 2023; 21:557. [PMID: 37999381 PMCID: PMC10672204 DOI: 10.3390/md21110557] [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: 09/19/2023] [Revised: 10/14/2023] [Accepted: 10/18/2023] [Indexed: 11/25/2023] Open
Abstract
Fucans from marine algae have been the object of many studies that demonstrated a broad spectrum of biological activities, including anti-inflammatory effects. The aim of this study was to verify the protective effects of a fucan extracted from the brown algae Spatoglossum schröederi in animals submitted to a generalized inflammation model induced by zymosan (ZIGI). BALB/c mice were first submitted to zymosan-induced peritonitis to evaluate the treatment dose capable of inhibiting the induced cellular migration in a simple model of inflammation. Mice were treated by the intravenous route with three doses (20, 10, and 5 mg/kg) of our fucan and, 1 h later, were inoculated with an intraperitoneal dose of zymosan (40 mg/kg). Peritoneal exudate was collected 24 h later for the evaluation of leukocyte migration. Doses of the fucan of Spatoglossum schröederi at 20 and 10 mg/kg reduced peritoneal cellular migration and were selected to perform ZIGI experiments. In the ZIGI model, treatment was administered 1 h before and 6 h after the zymosan inoculation (500 mg/kg). Treatments and challenges were administered via intravenous and intraperitoneal routes, respectively. Systemic toxicity was assessed 6 h after inoculation, based on three clinical signs (bristly hair, prostration, and diarrhea). The peritoneal exudate was collected to assess cellular migration and IL-6 levels, while blood samples were collected to determine IL-6, ALT, and AST levels. Liver tissue was collected for histopathological analysis. In another experimental series, weight loss was evaluated for 15 days after zymosan inoculation and fucan treatment. The fucan treatment did not present any effect on ZIGI systemic toxicity; however, a fucan dose of 20 mg/kg was capable of reducing the weight loss in treated mice. The treatment with both doses also reduced the cellular migration and reduced IL-6 levels in peritoneal exudate and serum in doses of 20 and 10 mg/kg, respectively. They also presented a protective effect in the liver, with a reduction in hepatic transaminase levels in both doses of treatment and attenuated histological damage in the liver at a dose of 10 mg/kg. Fucan from S. schröederi presented a promising pharmacological activity upon the murine model of ZIGI, with potential anti-inflammatory and hepatic protective effects, and should be the target of profound and elucidative studies.
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Affiliation(s)
- Ana Katarina Andrade Silva
- Department of Microbiology and Parasitology, Department of Biochemistry, Federal University of Rio Grande do Norte, Avenida Salgado Filho, BR 101, Campus Universitario, Lagoa Nova, Natal 59078-900, Brazil; (A.K.A.S.); (C.R.d.M.S.); (H.M.D.S.); (J.T.J.); (L.A.d.S.G.); (H.A.O.R.)
- Onofre Lopes University Hospital, Federal University of Rio Grande do Norte, EBSERH, Natal 59078-900, Brazil
| | - Cássio Ricardo de Medeiros Souza
- Department of Microbiology and Parasitology, Department of Biochemistry, Federal University of Rio Grande do Norte, Avenida Salgado Filho, BR 101, Campus Universitario, Lagoa Nova, Natal 59078-900, Brazil; (A.K.A.S.); (C.R.d.M.S.); (H.M.D.S.); (J.T.J.); (L.A.d.S.G.); (H.A.O.R.)
- Biochemistry and Molecular Biology Post-Graduation Program, Federal University of Rio Grande do Norte, Avenida Salgado Filho, BR 101, Campus Universitario, Lagoa Nova, Natal 59078-900, Brazil
| | - Hylarina Montenegro Diniz Silva
- Department of Microbiology and Parasitology, Department of Biochemistry, Federal University of Rio Grande do Norte, Avenida Salgado Filho, BR 101, Campus Universitario, Lagoa Nova, Natal 59078-900, Brazil; (A.K.A.S.); (C.R.d.M.S.); (H.M.D.S.); (J.T.J.); (L.A.d.S.G.); (H.A.O.R.)
- Onofre Lopes University Hospital, Federal University of Rio Grande do Norte, EBSERH, Natal 59078-900, Brazil
| | - Jéssica Teixeira Jales
- Department of Microbiology and Parasitology, Department of Biochemistry, Federal University of Rio Grande do Norte, Avenida Salgado Filho, BR 101, Campus Universitario, Lagoa Nova, Natal 59078-900, Brazil; (A.K.A.S.); (C.R.d.M.S.); (H.M.D.S.); (J.T.J.); (L.A.d.S.G.); (H.A.O.R.)
| | - Lucas Alves de Souza Gomez
- Department of Microbiology and Parasitology, Department of Biochemistry, Federal University of Rio Grande do Norte, Avenida Salgado Filho, BR 101, Campus Universitario, Lagoa Nova, Natal 59078-900, Brazil; (A.K.A.S.); (C.R.d.M.S.); (H.M.D.S.); (J.T.J.); (L.A.d.S.G.); (H.A.O.R.)
| | - Ericka Janine Dantas da Silveira
- Department of Dentistry, Federal University of Rio Grande do Norte, Avenida Salgado Filho, 1787, Lagoa Nova, Natal 59056-000, Brazil;
| | - Hugo Alexandre Oliveira Rocha
- Department of Microbiology and Parasitology, Department of Biochemistry, Federal University of Rio Grande do Norte, Avenida Salgado Filho, BR 101, Campus Universitario, Lagoa Nova, Natal 59078-900, Brazil; (A.K.A.S.); (C.R.d.M.S.); (H.M.D.S.); (J.T.J.); (L.A.d.S.G.); (H.A.O.R.)
| | - Janeusa Trindade Souto
- Department of Microbiology and Parasitology, Department of Biochemistry, Federal University of Rio Grande do Norte, Avenida Salgado Filho, BR 101, Campus Universitario, Lagoa Nova, Natal 59078-900, Brazil; (A.K.A.S.); (C.R.d.M.S.); (H.M.D.S.); (J.T.J.); (L.A.d.S.G.); (H.A.O.R.)
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da Silva Cordeiro ML, de Queiroz Aquino-Martins VG, da Silva AP, Naliato GFS, Silveira ER, Theodoro RC, da Santos DYAC, Rocha HAO, Scortecci KC. Exploring the Antioxidant Potential of Talisia esculenta Using In Vitro and In Vivo Approaches. Nutrients 2023; 15:3855. [PMID: 37686887 PMCID: PMC10490396 DOI: 10.3390/nu15173855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 08/21/2023] [Accepted: 08/22/2023] [Indexed: 09/10/2023] Open
Abstract
Medicinal plants, such as Talisia esculenta, are rich in antioxidant biomolecules, which are used in the treatment and prevention of many diseases. The antioxidant potential of T. esculenta extracts obtained from leaves and fruit peels was investigated using biochemical and 3T3 cell line assays as well as in vivo assays using an organism model Tenebrio molitor. Four extracts were tested: hydroethanolic extracts from leaves (HF) and from fruit peels (HC), and infusion extracts from leaves (IF) and from fruit peels (IC). The biochemical assays demonstrated an antioxidant capacity verified by TAC, reducing power, DPPH, and copper chelating assays. None of the extracts exhibited cytotoxicity against 3T3 cells, instead offering a protection against CuSO4-induced oxidative stress. The antioxidant activity observed in the extracts, including their role as free radical scavengers, copper chelators, and stress protectors, was further confirmed by T. molitor assays. The CLAE-DAD analysis detected phenolic compounds, including gallic acid, rutin, and quercitrin, as the main constituents of the samples. This study highlights that leaf and fruit peels extracts of T. esculenta could be effective protectors against ROS and copper-induced stress in cellular and invertebrate models, and they should be considered as coadjutants in the treatment and prevention of diseases related to oxidative stress and for the development of natural nutraceutical products.
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Affiliation(s)
- Maria Lúcia da Silva Cordeiro
- Laboratório de Transformação de Plantas e Análise em Microscopia (LTPAM), Departamento de Biologia Celular e Genética, Universidade Federal do Rio Grande do Norte (UFRN), Natal 59078-970, RN, Brazil; (M.L.d.S.C.); (V.G.d.Q.A.-M.); (A.P.d.S.)
- Programa de Pós-graduação em Bioquímica e Biologia Molecular, Centro de Biociências, Universidade Federal do Rio Grande do Norte (UFRN), Natal 59078-970, RN, Brazil; (G.F.S.N.); (R.C.T.); (H.A.O.R.)
| | - Verônica Giuliani de Queiroz Aquino-Martins
- Laboratório de Transformação de Plantas e Análise em Microscopia (LTPAM), Departamento de Biologia Celular e Genética, Universidade Federal do Rio Grande do Norte (UFRN), Natal 59078-970, RN, Brazil; (M.L.d.S.C.); (V.G.d.Q.A.-M.); (A.P.d.S.)
- Programa de Pós-graduação em Bioquímica e Biologia Molecular, Centro de Biociências, Universidade Federal do Rio Grande do Norte (UFRN), Natal 59078-970, RN, Brazil; (G.F.S.N.); (R.C.T.); (H.A.O.R.)
| | - Ariana Pereira da Silva
- Laboratório de Transformação de Plantas e Análise em Microscopia (LTPAM), Departamento de Biologia Celular e Genética, Universidade Federal do Rio Grande do Norte (UFRN), Natal 59078-970, RN, Brazil; (M.L.d.S.C.); (V.G.d.Q.A.-M.); (A.P.d.S.)
- Programa de Pós-graduação em Bioquímica e Biologia Molecular, Centro de Biociências, Universidade Federal do Rio Grande do Norte (UFRN), Natal 59078-970, RN, Brazil; (G.F.S.N.); (R.C.T.); (H.A.O.R.)
| | - Georggia Fatima Silva Naliato
- Programa de Pós-graduação em Bioquímica e Biologia Molecular, Centro de Biociências, Universidade Federal do Rio Grande do Norte (UFRN), Natal 59078-970, RN, Brazil; (G.F.S.N.); (R.C.T.); (H.A.O.R.)
- Instituto de Medicina Tropical, Universidade Federal do Rio Grande do Norte (UFRN), Natal 59077-080, RN, Brazil
| | - Elielson Rodrigo Silveira
- Laboratório de Fitoquímica, Departamento de Botânica, Universidade de São Paulo (USP), São Paulo 05508-090, SP, Brazil; (E.R.S.); (D.Y.A.C.d.S.)
| | - Raquel Cordeiro Theodoro
- Programa de Pós-graduação em Bioquímica e Biologia Molecular, Centro de Biociências, Universidade Federal do Rio Grande do Norte (UFRN), Natal 59078-970, RN, Brazil; (G.F.S.N.); (R.C.T.); (H.A.O.R.)
- Instituto de Medicina Tropical, Universidade Federal do Rio Grande do Norte (UFRN), Natal 59077-080, RN, Brazil
| | - Deborah Yara Alves Cursino da Santos
- Laboratório de Fitoquímica, Departamento de Botânica, Universidade de São Paulo (USP), São Paulo 05508-090, SP, Brazil; (E.R.S.); (D.Y.A.C.d.S.)
| | - Hugo Alexandre Oliveira Rocha
- Programa de Pós-graduação em Bioquímica e Biologia Molecular, Centro de Biociências, Universidade Federal do Rio Grande do Norte (UFRN), Natal 59078-970, RN, Brazil; (G.F.S.N.); (R.C.T.); (H.A.O.R.)
- Laboratório de Biotecnologia de Polímeros Naturais (BIOPOL), Departamento de Bioquímica, Universidade Federal do Rio Grande do Norte (UFRN), Natal 59078-970, RN, Brazil
| | - Katia Castanho Scortecci
- Laboratório de Transformação de Plantas e Análise em Microscopia (LTPAM), Departamento de Biologia Celular e Genética, Universidade Federal do Rio Grande do Norte (UFRN), Natal 59078-970, RN, Brazil; (M.L.d.S.C.); (V.G.d.Q.A.-M.); (A.P.d.S.)
- Programa de Pós-graduação em Bioquímica e Biologia Molecular, Centro de Biociências, Universidade Federal do Rio Grande do Norte (UFRN), Natal 59078-970, RN, Brazil; (G.F.S.N.); (R.C.T.); (H.A.O.R.)
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Wang L, Jayawardena TU, Kim YS, Wang K, Fu X, Ahn G, Cha SH, Kim JG, Lee JS, Jeon YJ. Anti-Melanogenesis and Anti-Photoaging Effects of the Sulfated Polysaccharides Isolated from the Brown Seaweed Padina boryana. Polymers (Basel) 2023; 15:3382. [PMID: 37631439 PMCID: PMC10459840 DOI: 10.3390/polym15163382] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 08/05/2023] [Accepted: 08/09/2023] [Indexed: 08/27/2023] Open
Abstract
Sulfated polysaccharides isolated from seaweeds are thought of as ideal ingredients in the pharmaceutical, nutraceutical, and cosmetics industries. Our previous study isolated and characterized sulfated polysaccharides from Padina boryana. The sulfated polysaccharides of Padina boryana (PBP) were extracted, and the antioxidant activity of PBP was evaluated. The results indicate that PBP possesses antioxidant effects and potential in the cosmetic industry. To further investigate the potential of PBP in cosmetics, the photoprotective and anti-melanogenesis effects of PBP were evaluated. The anti-melanogenesis test results display that PBP reduced the melanin content in the murine melanoma cells stimulated by alpha melanocyte-stimulating hormone from 203.7% to 183.64%, 144.63%, and 127.57% at concentrations of 25 μg/mL, 50 μg/mL, and 100 μg/mL, respectively. The anti-photodamage test results showed that PBP significantly protected skin cells against UVB-stimulated photodamage. PBP suppressed human epidermal keratinocyte (HaCaT cell) death by inhibiting apoptosis and reducing the level of intracellular reactive oxygen species. The intracellular reactive oxygen species level of HaCaT cells irradiated by UVB was reduced from 192.67% to 181.22%, 170.25%, and 160.48% by 25 μg/mL, 50 μg/mL, and 100 μg/mL PBP, respectively. In addition, PBP remarkably reduced UVB-induced human dermal fibroblast damage by suppressing oxidative damage, inhibiting collagen degradation, and attenuating inflammatory responses. These results indicate that PBP possesses photoprotective and anti-melanogenesis activities and suggest that PBP is a potential ingredient in the cosmetic industry.
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Affiliation(s)
- Lei Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Thilina U. Jayawardena
- Department of Chemistry, Biochemistry and Physics, Université du Québec à Trois-Rivières, Trois-Rivières, QC G8Z 4M3, Canada;
- Department of Marine Life Sciences, Jeju National University, Jeju 63243, Republic of Korea
| | - Young-Sang Kim
- Department of Marine Life Sciences, Jeju National University, Jeju 63243, Republic of Korea
| | - Kaiqiang Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Xiaoting Fu
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Ginnae Ahn
- Department of Marine Bio Food Science, Chonnam National University, Yeosu, 59626, Republic of Korea
| | - Seon-Heui Cha
- Department of Marine Bio and Medical Science, Hanseo Universirty, Seosan-si 32158, Republic of Korea
| | - Jeong Gyun Kim
- Department of Seafood Science & Technology, Institute of Marine Industry, Gyeongsang National University, Tongyeong 53064, Republic of Korea; (J.G.K.); (J.S.L.)
| | - Jung Suck Lee
- Department of Seafood Science & Technology, Institute of Marine Industry, Gyeongsang National University, Tongyeong 53064, Republic of Korea; (J.G.K.); (J.S.L.)
| | - You-Jin Jeon
- Department of Marine Life Sciences, Jeju National University, Jeju 63243, Republic of Korea
- Marine Science Institute, Jeju National University, Jeju 63333, Republic of Korea
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Rao NNM, Palodkar KK, Kumar TS, Sadhu V, Aminabhavi TM, Kakarla RR, Sesha Sainath AV. Water-soluble PEG segmented mannose-based macromolecules: Synthesis and their biocompatibility. Int J Biol Macromol 2023; 237:124119. [PMID: 36963543 DOI: 10.1016/j.ijbiomac.2023.124119] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 02/11/2023] [Accepted: 03/17/2023] [Indexed: 03/26/2023]
Abstract
The macromolecular architectures, namely mannose-based methacrylate acetyl-mannopyranoside and PEG block copolymers (AB type copolymer [PEG-b-PMAM], poly(ethyleneglycol)-b-poly(methacryl-2,3,4,6-tetra-O-acetyl-D-mannopyranoside and ABA type copolymer [PMAM-b-PEG-b-PMAM], poly(methacryl-2,3,4,6-tetra-O-acetyl-D-mannopyranoside-b-poly(ethyleneglycol)-b-poly(methacryl-2,3,4,6-tetra-O-acetyl-D-mannopyranoside) were synthesized by atom transfer radical polymerization (ATRP) method that were deacetylated to generate the corresponding water-soluble and biocompatible glycopolymer macromolecules. The molecular weight of acetyl and deacetylate macromolecules was in the range of 7083-9499 and 4659-6026, as determined by GPC and proton NMR spectra. The 5 % decomposition temperatures for acetylated methacrylate macromolecules (218-299 °C) were higher than the corresponding water-soluble macromolecules (204-248 °C). The conjugation of poly(methacryl-2,3,4,6-tetra-O-acetyl-D-mannopyranoside (PMAM) segment with the PEG block decreased the glass transition (Tg) value, and the water-soluble macromolecules displayed Tg in the range of 92-95 °C. The biocompatibility of the synthesized water-soluble mannose-based macromolecules was determined using Human Bone Derived Cells (HBDC) culture with the TCP (Tissue culture plastic) template as control. Using three different concentrations of the synthesized glycopolymers, HBDC's were cultured for 1, 3, and 7 days. The effect of mannomethacrylate macromolecules on mitochondrial activity of HBDC's was estimated using colorimetry that showed the conversion of MTS [3-(4,5-dimethyl-thiazol-2-yl)-2,5-diphenyl-tetrazolium-bromide] to formazan (MTS assay). ABA type diblock copolymer architecture exhibited increased absorbance values of 3 and 7 day cultures at 1-100 M concentrations, with the highest values observed at a concentration of 1 M for day 3 cultures. The design of these novel mannose-based macromolecules is important for improving cell proliferation, cell adhesion, and osteointegration efficiency.
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Affiliation(s)
- N Naga Malleswara Rao
- Polymers and Functional Materials and Fluoro-Agrochemicals Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
| | - Krushna K Palodkar
- Polymers and Functional Materials and Fluoro-Agrochemicals Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500007, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
| | - T Sandeep Kumar
- Polymers and Functional Materials and Fluoro-Agrochemicals Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500007, India
| | - Veera Sadhu
- Centre for Advanced Materials Application, Slovak Academy of Sciences, Dubravska cesta 9, 845 11 Bratislava, Slovak Republic; Polymer Institute, Slovak Academy of Sciences, Dúbravská cesta 9, 845 41 Bratislava, Slovak Republic
| | - Tejraj M Aminabhavi
- Center for Energy and Environment, School of Advanced Sciences, KLE Technological University, Hubballi 580 031, Karnataka, India; School of Engineering, UPES, Bidholi, Dehradun, Uttarakhand 248 007, India.
| | - Raghava Reddy Kakarla
- School Chemical Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia.
| | - Annadanam V Sesha Sainath
- Polymers and Functional Materials and Fluoro-Agrochemicals Department, CSIR-Indian Institute of Chemical Technology, Uppal Road, Hyderabad 500007, India.
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Antioxidant Activity of Fucoidan Modified with Gallic Acid Using the Redox Method. Mar Drugs 2022; 20:md20080490. [PMID: 36005493 PMCID: PMC9410456 DOI: 10.3390/md20080490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 07/24/2022] [Accepted: 07/27/2022] [Indexed: 01/25/2023] Open
Abstract
Antioxidant compounds decrease the amount of intracellular reactive oxygen species (ROS) and, consequently, reduce the deleterious effects of ROS in osteoblasts. Here, we modified a 21 kDa fucoidan (FucA) with gallic acid (GA) using the redox method, to potentiate its antioxidant/protective capacity on pre-osteoblast-like cells (MC3T3) against oxidative stress. The 20 kDa FucA-GA contains 37 ± 3.0 mg GA per gram of FucA. FucA-GA was the most efficient antioxidant agent in terms of total antioxidant capacity (2.5 times), reducing power (five times), copper chelation (three times), and superoxide radical scavenging (2 times). Exposure of MC3T3 cells to H2O2 increased ROS levels and activated caspase-3 along with caspase-9. In addition, the cell viability decreased approximately 80%. FucA-GA also provided the most effective protection against oxidative damage caused by H2O2. Treatment with FucA-GA (1.0 mg/mL) increased cell viability (~80%) and decreased intracellular ROS (100%) and caspase activation (~80%). In addition, Fuc-GA (0.1 mg/mL) abolished H2O2-induced oxidative stress in zebra fish embryos. Overall, FucA-GA protected MC3T3 cells from oxidative stress and could represent a possible adjuvant for the treatment of bone fragility by counteracting oxidative phenomena.
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