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Nurujjaman M, Mashhoor T, Pronoy TUH, Auwal A, Hasan MR, Islam SS, Hasan I, Asaduzzaman AKM, Uddin MB, Kabir SR, Islam F. Antitumor Activity of a Lectin Purified from Punica granatum Pulps against Ehrlich Ascites Carcinoma (EAC) Cells. Anticancer Agents Med Chem 2024; 24:193-202. [PMID: 38037833 DOI: 10.2174/0118715206269394231124093423] [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: 08/07/2023] [Revised: 10/09/2023] [Accepted: 10/18/2023] [Indexed: 12/02/2023]
Abstract
BACKGROUND Lectins are carbohydrate-binding proteins with various pharmacological activities, such as antimicrobial, antidiabetic, antioxidant, and anticancer. Punica granatum fruit extract has traditional uses, however, the anti-cancer activity of purified lectin isolated from P. granatum pulp is yet to be reported. OBJECTIVE The goals of this study are purification, characterization of the lectin from P. granatum, and examination of the purified lectin's anticancer potential. METHODS Diethylaminoethyl (DEAE) ion-exchange chromatography was used to purify the lectin, and SDSPAGE was used to check the purity and homogeneity of the lectin. Spectrometric and chemical analysis were used to characterize the lectin. The anticancer activity of the lectin was examined using in vivo and in vitro functional assays. RESULTS A lectin, designated as PgL of 28.0 ± 1.0 kDa molecular mass, was isolated and purified from the pulps of P. granatum and the lectin contains 40% sugar. Also, it is a bivalent ion-dependent lectin and lost its 75% activity in the presence of urea (8M). The lectin agglutinated blood cells of humans and rats, and sugar molecules such as 4-nitrophenyl-α-D-manopyranoside and 2- nitrophenyl -β- D-glucopyranoside inhibited PgL's hemagglutination activity. At pH ranges of 6.0-8.0 and temperature ranges of 30°C -80°C, PgL exhibited the highest agglutination activity. In vitro MTT assay showed that PgL inhibited Ehrlich ascites carcinoma (EAC) cell growth in a dose-dependent manner. PgL exhibited 39 % and 58.52 % growth inhibition of EAC cells in the mice model at 1.5 and 3.0 mg/kg/day (i.p.), respectively. In addition, PgL significantly increased the survival time (32.0 % and 49.3 %) of EAC-bearing mice at 1.5 and 3.0 mg/kg/day doses (i.p.), respectively, in comparison to untreated EAC-bearing animals (p < 0.01). Also, PgL reduced the tumor weight of EAC-bearing mice (66.6 versus 39.13%; p < 0.01) at the dose of 3.0 mg/kg/day treatment. Furthermore, supplementation of PgL restored the haematological parameters toward normal levels deteriorated in EAC-bearing animals by the toxicity of EAC cells. CONCLUSION The results indicated that the purified lectin has anticancer activity and has the potential to be developed as an effective chemotherapy agent.
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Affiliation(s)
- Md Nurujjaman
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Tanjila Mashhoor
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi 6205, Bangladesh
| | - Tasfik Ul Haque Pronoy
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Abdul Auwal
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Md Robiul Hasan
- Department of Plant Pathology, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706, Bangladesh
| | - Shaikh Shohidul Islam
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Imtiaj Hasan
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - A K M Asaduzzaman
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi, 6205, Bangladesh
| | - Md Belal Uddin
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi 6205, Bangladesh
| | - Syed Rashel Kabir
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi 6205, Bangladesh
| | - Farhadul Islam
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi 6205, Bangladesh
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Vargila F, Bai SMM, Mary JVJ, Ramesh M. Antimicrobial, anti-inflammatory and anti-arthritic activity of hemolymph lectin (NagLec) isolated from the freshwater crab, Oziotelphusanaga. FISH & SHELLFISH IMMUNOLOGY 2023; 141:109001. [PMID: 37597641 DOI: 10.1016/j.fsi.2023.109001] [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: 12/31/2022] [Revised: 06/15/2023] [Accepted: 08/14/2023] [Indexed: 08/21/2023]
Abstract
Lectins are non-immune glycoproteins or proteins having a unique capacity to interact with carbohydrate ligands found on the surface of their host cells. In the present investigation, the lectin was purified from the hemolymph of freshwater crab, Oziotelphusa naga and its antimicrobial, anti-inflammatory and anti-arthritic activity was analysed. The preliminary characterization of the hemagglutinin was carried out to identify the erythrocyte and sugar specificity, optimum pH and temperature and cation dependency. The agglutinin was found to be highly specific to rabbit erythrocyte and inhibited by fetuin and α-lactose. Maximum hemagglutination activity was noted at pH 7.5-8 and temperature 20-40 °C. An O-acetyl sialic acid specific 75 kDa hemolymph lectin, designated as NagLec was isolated from the freshwater crab, Oziotelphusa naga by affinity chromatography on fetuin coupled Sepharose 4 B, with a purification fold of 185. The bacteria Staphylococcus aureus, Proteus mirabilis and fungus Candida albicans had the greatest zone of inhibition when treated with NagLec. The results of the Minimum inhibitory concentration (MIC) and Minimum bactericidal concentration (MBC) assays showed that the purified lectin inhibited the growth of Staphylococcus aureus at 0.031 and 0.065 μg/ml, which proved the bactericidal property of NagLec. NagLec generated alterations on the bacterial cells and led to protein leakage, which was dosage (24 and 48 μg/ml) and time dependent (10-40 min). COX and LOX enzyme was inhibited to 49.43% and 61.81% with 100 μg/ml concentration of NagLec respectively, demonstrating NagLec's ability to reduce inflammation. Furthermore, NagLec (500 μg) suppressed protein denaturation up to 77.12% whereas diclofenac sodium (a standard drug) was inhibited by 89.36%. The results indicate that NagLec, a sialic acid specific lectin isolated from the freshwater crab O. naga could be formulated as a nano drug in future owing to its antimicrobial, anti-inflammatory and anti-arthritic potential that could be targeted to specific pathogenic microbes and treat arthritis.
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Affiliation(s)
- F Vargila
- Department of Zoology, Holy Cross College (Autonomous), Nagercoil, Affiliated to Manonmaniam Sundaranar University, Tirunelveli, 627 012, Tamil Nadu, India.
| | - S Mary Mettilda Bai
- Department of Zoology, Holy Cross College (Autonomous), Nagercoil, Affiliated to Manonmaniam Sundaranar University, Tirunelveli, 627 012, Tamil Nadu, India
| | - J Vinoliya Josephine Mary
- Department of Zoology, Holy Cross College (Autonomous), Nagercoil, Affiliated to Manonmaniam Sundaranar University, Tirunelveli, 627 012, Tamil Nadu, India
| | - M Ramesh
- Department of Zoology, Bharathiar University, Coimbatore, 641 046, Tamil Nadu, India
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Li Y, Wang P, Zhang Z, Liu Q. A novel lectin from mushroom Phellodon melaleucus displays hemagglutination activity, and antitumor activity in a B16 melanoma mouse model. FOOD SCIENCE AND HUMAN WELLNESS 2023. [DOI: 10.1016/j.fshw.2023.02.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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Sanniyasi E, Gopal RK, Raj PP, Shanmugavel AK. Anti-inflammatory, remorin-like protein from green marine Macroalga Caulerpa sertularioides (S.G.Gmel.) M.Howe. Heliyon 2023; 9:e19239. [PMID: 37664755 PMCID: PMC10468388 DOI: 10.1016/j.heliyon.2023.e19239] [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: 11/21/2022] [Revised: 07/31/2023] [Accepted: 08/16/2023] [Indexed: 09/05/2023] Open
Abstract
The most prevalent natural source of hydrocolloids, cosmetics, medications, and nutraceuticals is marine seaweed (macroalgae). Numerous bioactivities, including antiviral, anticancer, anti-inflammatory, and immunomodulatory characteristics, have been found in bioactive substances such as polyphenols and sulfated and non-sulfated polysaccharides. As a result, new start-up projects and industries based on seaweed are emerging in all regions of the world with abundant marine biodiversity. In this current investigation, the anti-inflammatory activity of two different marine macroalgae Caulerpa racemosa (CR) and Caulerpa sertularioides (CS) was evaluated. Consequently, CS demonstrated more anti-inflammatory and antioxidant effects at a lower dose than CR. The IC50 value for DPPH inhibition was 456.1 μg/mL, and 180.9 μg/mL for CS and CR respectively. A similar result was obtained in the case of protein denaturation (PD), membrane stabilization (MS), and protease inhibition (PI) anti-inflammatory assays with 127.2 μg/mL, 135.5 μg/mL, and 71.88 μg/mL for CR, and 66.78 μg/mL, 88.96 μg/mL, and 59.54 μg/mL for CS respectively. Based on the SDS-PAGE, the molecular weight of lectin responsible for the anti-inflammatory activity was determined as 17 kDa. Protein mass fingerprinting was performed for the particular lectin by in-gel trypsin digestion, MALDI-MS analysis, and Mascot peptide mass fingerprinting. Because of this, the unidentified lectin protein was discovered to be a remorin-like protein that shared 65% of its sequence with the remorin-like protein of Aegilops tauschii subsp. tauschii. Therefore, it is the hitherto report on the presence of remorin-like protein from the green macroalga Caulerpa sertularioides.
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Affiliation(s)
- Elumalai Sanniyasi
- Department of Biotechnology, University of Madras, Guindy Campus, Chennai, 600025, India
| | - Rajesh Kanna Gopal
- Department of Microbiology, Saveetha Dental College & Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai, 600077, India
| | - Preethy P. Raj
- Department of Biotechnology, University of Madras, Guindy Campus, Chennai, 600025, India
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Gibb BC. Withstanding winter with mushroom therapy. Nat Chem 2023; 15:155-157. [PMID: 36747032 DOI: 10.1038/s41557-022-01129-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Bruce C Gibb
- Department of Chemistry at Tulane University, New Orleans, LA, USA.
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Yan M, Chen Y, Li M, Wu J, Fang Z, Wang J, Liu J. Coprinopsis cinerea Galectin CGL1 Induces Apoptosis and Inhibits Tumor Growth in Colorectal Cancer Cells. Int J Mol Sci 2022; 24:ijms24010235. [PMID: 36613681 PMCID: PMC9820451 DOI: 10.3390/ijms24010235] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/15/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022] Open
Abstract
Mushroom galectins are promising anticancer agents for their low IC50 values against cancer cells in vitro. In this study, two Coprinopsis cinerea galectins, CGL1 and CGL2, were heterologously expressed, and their biochemistry properties and anticancer effects were evaluated. The purified galectins were thermostable at neutral pH conditions. They both existed as tetramers and shared a high affinity towards lactose. CGL1 and CGL2 strongly inhibited the cell viability of many cancer cell lines, including three colorectal cancer cells, in a dose-dependent manner by inducing mitochondria-mediated caspase-dependent apoptosis. Furthermore, CGL1 exhibited higher apoptosis-inducing ability and cytotoxicity than CGL2. In vivo cell viability experiments based on two xenograft mouse models showed that CGL1 had a more substantial inhibitory effect than CGL2 on HCT116 tumor growth (p < 0.0001), whereas only CGL1 inhibited DLD1 tumor growth (p < 0.01). This is the first study to evaluate the anti-colorectal cancer effect of mushroom lectins in vivo, and our results showed that CGL1 is a potent agent for colorectal cancer treatment.
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Affiliation(s)
- Mengli Yan
- School of Life Sciences, Anhui University, Hefei 230601, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei 230601, China
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei 230601, China
| | - Yaxuan Chen
- School of Life Sciences, Anhui University, Hefei 230601, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei 230601, China
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei 230601, China
| | - Mengke Li
- School of Life Sciences, Anhui University, Hefei 230601, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei 230601, China
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei 230601, China
| | - Jiamin Wu
- School of Life Sciences, Anhui University, Hefei 230601, China
| | - Zemin Fang
- School of Life Sciences, Anhui University, Hefei 230601, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei 230601, China
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei 230601, China
| | - Junjun Wang
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, China
- Correspondence: (J.W.); (J.L.)
| | - Juanjuan Liu
- School of Life Sciences, Anhui University, Hefei 230601, China
- Anhui Key Laboratory of Modern Biomanufacturing, Hefei 230601, China
- Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, Hefei 230601, China
- Correspondence: (J.W.); (J.L.)
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Golian M, Hegedűsová A, Mezeyová I, Chlebová Z, Hegedűs O, Urminská D, Vollmannová A, Chlebo P. Accumulation of Selected Metal Elements in Fruiting Bodies of Oyster Mushroom. Foods 2021; 11:76. [PMID: 35010201 PMCID: PMC8750625 DOI: 10.3390/foods11010076] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 12/20/2021] [Accepted: 12/23/2021] [Indexed: 12/16/2022] Open
Abstract
The species Pleurotus ostreatus is a commercially, gastronomically, and biotechnologically important fungus. Its strain variability has been little researched. The study provides an evaluation of 59 oyster mushroom production strains in terms of the ability to accumulate selected metals in the cap and stipe. The fruiting bodies were grown under identical model conditions on straw substrate. Metal concentrations (ET-AAS) in dry fruiting bodies ranged in values 1.7-22.4 mg kg-1 for Al, 2.6-9.7 mg kg-1 Ba, 199-4560 mg kg-1 Ca, 1.7-12.0 mg kg-1 Cu, 12-120 mg kg-1 Fe, 16,000-49,500 mg kg-1 K, 876-2400 mg kg-1 Mg, 0.39-11.0 mg kg-1 Mn, 46-920 mg kg-1 Na and 11-920 mg kg-1 for Zn. More Cu, Fe, K, Mg, Mn, Zn accumulated in the cap, while in the stipe Ba was amassed. No significant difference was found between Al, Ca and Na between the accumulation in the cap and the stipe. Furthermore, the dependence of metal uptake from the substrate depending on the fortification of the substrate was confirmed. Statistically significant (p < 0.05) synergistic relationships were shown in pairs Al and Ba, Al and Fe, Ba and Na, Ba and Ca, Ca and Na, Cu and Fe, Fe and Mn, Fe and Zn, K and Mg, K and Mn, K and Zn, Mg and Mn, Mg and Na, Mg and Zn and Mn and Zn in the substrate without the addition of sodium selenate to the substrate. Altered relationships were observed after the application of sodium selenate to the substrate, synergism of Se and Ni, Se and Co and Se and Hg, Cu and Mn, Cu and Fe, Zn and Co, Zn and Ni, Zn and Hg, Mn and Fe, Mn and Cr, Co and Ni, Co and Hg, Ni and Hg, Pb and Cd. The findings of the study may help in the selection of production strains with hypercumulative properties for a particular metal and subsequent use in the addition of fortified fruiting bodies (e.g., with Zn). Based on the study the strains less sensitive to the accumulation of hazardous metals is possible to select for large-scale production, which is important from the perspective of food safety.
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Affiliation(s)
- Marcel Golian
- Institute of Horticulture, Faculty of Horticulture and Landscape Engineering, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia; (A.H.); (I.M.)
| | - Alžbeta Hegedűsová
- Institute of Horticulture, Faculty of Horticulture and Landscape Engineering, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia; (A.H.); (I.M.)
| | - Ivana Mezeyová
- Institute of Horticulture, Faculty of Horticulture and Landscape Engineering, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia; (A.H.); (I.M.)
| | - Zuzana Chlebová
- AgroBioTech Reseach Centre, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia;
| | - Ondrej Hegedűs
- Department of Chemistry, Faculty of Education, Selye University, Hradna 21, 945 01 Komarno, Slovakia;
| | - Dana Urminská
- Institute of Biotechnology, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia;
| | - Alena Vollmannová
- Institute of Food Sciences, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia;
| | - Peter Chlebo
- Institute of Nutrition and Genomics, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia;
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Effect of Fortified Feed with Phyto-Extract on the First Physical Barrier (Mucus) of Labeo rohita. Animals (Basel) 2021; 11:ani11051308. [PMID: 34062790 PMCID: PMC8147292 DOI: 10.3390/ani11051308] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 04/20/2021] [Accepted: 04/30/2021] [Indexed: 12/30/2022] Open
Abstract
Simple Summary Pathogens of fish are a serious issue faced by farmers and a great threat to the country’s economy. Overuse of antibiotics leads to antibiotic-resistant strains of the bacterial pathogens; residues of the antibiotics also accumulate in the tissue of the fish and are responsible for environmental problems. Therefore, the use of antibiotic alternatives should be explored as a new approach to immunotherapy to prevent or to cure preexisting infections. Previous research has concluded that the use of herbal extracts enhances the immunity of fish against several fish pathogens such as bacteria and other protozoon parasites. This study aimed to evaluate the effect of two different fortified feeds with different concentrations of Withania coagulans and Zingiber officinale on the fish mucus of Labeo rohita. The mucus was tested against five pathogenic bacteria in-vitro while fish was tested against the ectoparasite Lernaea (in-vivo). Our result showed that Z. officinale proves an efficient immune stimulator for the L. rohita against the tested organism (both in vivo and in vitro). Hence, it can be used as an effective solution against the emerging diseases of cultured fish. Abstract The aim of the current study was to assess the effect of two different fortified feeds with different concentrations of two important medicinal plants (Withania coagulans and Zingiber officinale) on the mucosal immunity of Labeo rohita. After a dietary intervention, mucus was tested against five pathogenic bacteria (in-vitro), while experimental fish were tested against the ectoparasite (Lernaea) (in-vivo). Our results revealed that all fish groups fed with different concentrations (1, 1.5, and 2%) of Z. officinale had low molecular weight proteins and did not develop any significant signs of parasitic infection, with low mortality rate; whereas the groups that were fed with W. coagulans (particularly with 1% and 2%), including a control group, developed rapid signs of infection with high mortality rate. The highest hemagglutination titer value was recorded for the fish fed with 1% and 1.5% of Z. officinale. The lowest value was found for the fish fed with 2% of W. coagulans. The mucus of all fish of fortified groups was active and inhibited the growth of tested bacterial pathogens as compared to the control group. Further, Z. officinale groups showed greater efficacy against bacteria as compared to the W. coagulans groups. In conclusion, Z. officinale can be considered as a potential and functional ingredient in aquaculture feed. Furthermore, future studies should be conducted to investigate more details on the subject.
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Nayak D, Thathapudi NC, Ashe S, Nayak B. Bioengineered ethosomes encapsulating AgNPs and Tasar silk sericin proteins for non melanoma skin carcinoma (NMSC) as an alternative therapeutics. Int J Pharm 2021; 596:120265. [PMID: 33486031 DOI: 10.1016/j.ijpharm.2021.120265] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 12/27/2020] [Accepted: 12/28/2020] [Indexed: 02/07/2023]
Abstract
Rising cases of Non melanoma skin carcinoma (NMSC) and escalating levels of ultraviolet radiations have underlined a profound correlation with the elevating levels of environmental detoriation and increasing health issues. However, the availability of therapeutics has not aided in controlling the recurrence rates of skin carcinoma. Frequent administration of therapeutics with higher chances of facial deformity escalates the patient's treatment expenses. Thus, this study initiates a low cost effective and biodegradable therapy by exploring four formulations with combinations of silver nanoparticles (AgNPs), sericin (isolated from cocoons of Antherea mylitta) and chitosan. Subsequently, various ethosomal formulations were evaluated as a platform for transdermal delivery vehicle for efficient skin intervention therapeutics. Characterization using UV visible spectroscopy, Dynamic light scattering, Fourier Infrared spectroscopy, X-ray dispersion, Transmission electron microscopy, Fluorescence assisted cell sorting and in vitro studies were done and it was inferenced that equal combination of AgNPs and sericin facilitated to combat the morphological and cellular deformation of the epidermoid A431skin carcinoma cells. The overproduction of superoxide (O2.) and nitric oxide (NO) radicals consequently depolarized the mitochondrial membrane potential triggering apoptosis and necrosis. The in vivo experiments exhibited the stimulation of IgM secretion with T cell-mediated immune response. Therefore, this study proposes a novel approach for treatment of NMSC using biocompatible formulations delivered through ethosomes.
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Affiliation(s)
- Debasis Nayak
- Immunology and Molecular Medicine Laboratory, Department of Life Science, National Institute of Technology Rourkela, Odisha, India.
| | - Neethi C Thathapudi
- Immunology and Molecular Medicine Laboratory, Department of Life Science, National Institute of Technology Rourkela, Odisha, India
| | - Sarbani Ashe
- Immunology and Molecular Medicine Laboratory, Department of Life Science, National Institute of Technology Rourkela, Odisha, India
| | - Bismita Nayak
- Immunology and Molecular Medicine Laboratory, Department of Life Science, National Institute of Technology Rourkela, Odisha, India.
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Suzuki T. Genetic sequence analysis and characterization of bioactive compounds in mushroom-forming fungi. Biosci Biotechnol Biochem 2021; 85:8-12. [PMID: 33577662 DOI: 10.1093/bbb/zbaa067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Accepted: 10/26/2020] [Indexed: 11/12/2022]
Abstract
Mushroom-forming fungi produce unique bioactive compounds that have potential applications as medicines, supplements, and agrochemicals. Thus, it is necessary to clarify the biosynthetic pathways of these compounds using genome and transcriptome analyses. This review introduces some of our research on bioactive compounds isolated from mushrooms, as well as genetic analysis with next-generation sequencing.
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Affiliation(s)
- Tomohiro Suzuki
- Center for Bioscience Research and Education, Utsunomiya University, Utsunomiya, Japan
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Zhang Z, Zhang Y, Liu H, Wang J, Wang D, Deng Z, Li T, He Y, Yang Y, Zhong S. A water-soluble selenium-enriched polysaccharide produced by Pleurotus ostreatus: Purification, characterization, antioxidant and antitumor activities in vitro. Int J Biol Macromol 2020; 168:356-370. [PMID: 33316336 DOI: 10.1016/j.ijbiomac.2020.12.070] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 12/08/2020] [Accepted: 12/08/2020] [Indexed: 12/16/2022]
Abstract
The development and application of new selenium-enriched polysaccharides has become a critical topic in recent years. In this study, a natural selenium-enriched polysaccharide fraction (Se-POP-21) produced by Pleurotus ostreatus was purified, characterized, and investigated the antioxidant and antitumor activities in vitro. The Se-POP-21 was mainly composed of mannose, glucose, galactose and arabinose, with a molar ratio of 18.01:2.40:26.15:7.34, of which molecular weight was 15,888 Da and the selenium content was 5.31 μg/g. Spectral analysis demonstrated that Se-POP-21 represented a non-triple helix pyranopolysaccharide and selenium occurred in the form of C-O-Se and SeO. Molecular size and morphology studies showed that Se-POP-21 exhibited a spherical shape with a particle size distribution between 100 and 200 nm, even though Se-POP-21 aggregates were also found with a size between 500 and 600 nm. In addition, Se-POP-21 showed strong scavenging capacity to DPPH and hydroxyl radical. More, cell experiments showed that Se-POP-21 could reduce viability of A549, SKOV3, HepG2 and MCF-7 cells, induce apoptosis and inhibit metastasis of A549 cells. A potential mechanism was that Se-POP-21 inhibited the epithelial-to-mesenchymal transition of cancer cells. Se-POP-21 featured no significant effect on normal cells. Se-POP-21 showed great potential to develop into a natural antioxidant or low-toxic antitumor drug.
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Affiliation(s)
- Zhuomin Zhang
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Yunshan Zhang
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Hui Liu
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Jiahui Wang
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - De Wang
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Zhiwei Deng
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Tianhao Li
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Yao He
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Yanjing Yang
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China.
| | - Shian Zhong
- School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China.
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Preparation and Nanoencapsulation of Lectin from Lepidium sativum on Chitosan-Tripolyphosphate Nanoparticle and Their Cytotoxicity against Hepatocellular Carcinoma Cells (HepG2). BIOMED RESEARCH INTERNATIONAL 2020; 2020:7251346. [PMID: 33145357 PMCID: PMC7599413 DOI: 10.1155/2020/7251346] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 07/10/2020] [Accepted: 07/31/2020] [Indexed: 11/17/2022]
Abstract
Lectins are the oligomeric sugar-specific glycoprotein of nonimmune origin, are involved in the multiple biological recognition process, and have the capacity to perform a wide variety of physiological functions including antifungal, antiviral, antitumor, and cell agglutination. The main objective of the current study was to prepare lectin protein-loaded chitosan-TPP nanoparticles via ionic gelation methods with different CS/TPP ratios and to investigate anticancer potential against HepG2 cells. The best ratio showed the mean particle size (298.10 ± 1.9 nm, 21.05 ± 0.95 mv) with optimal encapsulation efficiencies of 52.435 ± 0.09%. The cytotoxicity was evaluated against HepG2 cells, and IC50 values obtained were 265 μg/ml for lectin protein and 105 μg/ml for lectin-loaded chitosan-TPP nanoparticles, respectively. The mRNA expression of proliferation markers like GPC3 was significantly decreased in hepatocellular carcinoma cells (HepG2) during lectin protein-loaded chitosan-TPP nanoparticle treatment. Apoptotic genes that indicating a marked increase in expression are Caspase 3, p53, and Bax, while Bcl2 and AFP showed a downregulation of expression after treatment of HepG2 cells with lectin-loaded chitosan-TPP nanoparticles. The preliminary findings of our study highlighted that lectin protein-loaded chitosan-TPP nanoparticles could be a promising anticancer agent.
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A critical review on submerged production of mushroom and their bioactive metabolites. 3 Biotech 2020; 10:337. [PMID: 32670737 DOI: 10.1007/s13205-020-02333-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 07/02/2020] [Indexed: 01/11/2023] Open
Abstract
Mushrooms are ubiquitous in nature. Even though humankind has been consuming mushrooms for ages, their medicinal and nutraceutical properties are not used to its fullest potential in the present market. Edible mushrooms are not only a cheap and nutritious option to mitigate malnutrition, but they also produce effective biomass. Submerged fermentation (SmF) is not only a cost-effective method to produce biomass along with exquisite bioactive metabolites but it also reduces the chances of contamination and the time of production. Therefore, this study unveils the bioactive metabolites being produced by mushrooms. Moreover, it also showcases the recent advances in the areas of bio-active compounds and their judicious implementations in daily life and pharmaceutical industries. Moreover, there is a distinct lack in utilizing the potential benefits of bioactive compounds from mushroom unless in vivo and in vitro studies are demonstrated.
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Perduca M, Destefanis L, Bovi M, Galliano M, Munari F, Assfalg M, Ferrari F, Monaco HL, Capaldi S. Structure and properties of the oyster mushroom (Pleurotus ostreatus) lectin. Glycobiology 2020; 30:550-562. [PMID: 31985778 DOI: 10.1093/glycob/cwaa006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 01/20/2020] [Accepted: 01/24/2020] [Indexed: 12/14/2022] Open
Abstract
Pleurotus ostreatus Lectin (POL) is a 353 amino acid chain lectin that can be purified from the fruiting bodies of the very well-known and widely diffused edible oyster mushrooms (P. ostreatus). The lectin has been partially characterized by different groups and, although it was crystallized about 20 years ago, its 3D structure and the details of its interactions with carbohydrates are still unknown. This paper reports the 3D structure and ligand-binding properties of POL. We have determined the X-ray structure of the apo-protein purified from the fruiting bodies of the mushroom and that of the recombinant protein in complex with melibiose to a resolution of about 2 Å. The lectin is a homodimer in which the two polypeptide chains are linked by a disulfide bridge. A POL monomer is composed of two highly homologous β-jellyroll domains each of which containing a calcium-dependent carbohydrate-binding site. A high degree of sequence similarity is observed between the two carbohydrate-binding modules present in each monomer. The structure of the lectin in complex with melibiose reveals that a POL dimer has four calcium-dependent carbohydrate-binding sites. The interaction with sugars in solution has been characterized by isothermal titration calorimetry and saturation transfer difference NMR and it sheds new light on the molecular determinants of POL specificity. The lectin exhibits in vitro antiproliferative effects against human cancer cell lines and presents structural similarity with the prototype member of the CBM67 family, the noncatalytic domain of Streptomyces avermitilis α-rhamnosidase.
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Affiliation(s)
- Massimiliano Perduca
- Biocrystallography and Nanostructure Laboratory, Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134 Verona, Italy
| | - Laura Destefanis
- Biocrystallography and Nanostructure Laboratory, Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134 Verona, Italy
| | - Michele Bovi
- Biocrystallography and Nanostructure Laboratory, Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134 Verona, Italy
| | - Monica Galliano
- Department of Molecular Medicine via Taramelli 3b, University of Pavia, 27100 Pavia, Italy
| | - Francesca Munari
- Biomolecular NMR Laboratory, Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134 Verona, Italy
| | - Michael Assfalg
- Biomolecular NMR Laboratory, Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134 Verona, Italy
| | - Fabio Ferrari
- Department of Molecular Medicine via Taramelli 3b, University of Pavia, 27100 Pavia, Italy
| | - Hugo L Monaco
- Biocrystallography and Nanostructure Laboratory, Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134 Verona, Italy
| | - Stefano Capaldi
- Biocrystallography and Nanostructure Laboratory, Department of Biotechnology, University of Verona, Strada Le Grazie 15, 37134 Verona, Italy
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Gyurjyan QG, Mikaelyan MV, Poghosyan GG, Hovhannisyan VA, Gasparyan VK. Detection of Saccharomyces cerevisiae by silver nanoparticles sensitized with various lectins. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:3508-3512. [PMID: 32672270 DOI: 10.1039/d0ay00614a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Anisotropic silver nanoparticles sensitized by various lectins were applied for detection of yeast (Saccharomyces cerevisiae) which was used as a model of fungal cells. It was shown that high concentrations of yeast cells have stabilized silver nanoparticles, preventing their aggregation in the presence of NaCl whereas at low concentrations of cells, the salt has induced aggregation of nanoparticles with drastic changes in optical spectra. These changes depend on cell concentration and permit the detection of cells in the range from 3.2 × 103 to 7 × 107 cell per ml. This approach was used for the determination of these cells in urine and its applicability was demonstrated.
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Affiliation(s)
- Qristine G Gyurjyan
- Institute of Biochemistry after H. Buniatian, P. Sevak str.5/1, Yerevan 0014, Armenia.
| | - Mariam V Mikaelyan
- Institute of Biochemistry after H. Buniatian, P. Sevak str.5/1, Yerevan 0014, Armenia.
| | - Gayane G Poghosyan
- Institute of Biochemistry after H. Buniatian, P. Sevak str.5/1, Yerevan 0014, Armenia.
| | | | - Vardan K Gasparyan
- Institute of Biochemistry after H. Buniatian, P. Sevak str.5/1, Yerevan 0014, Armenia.
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Vajravijayan S, Pletnev S, Luo Z, Pletnev VZ, Nandhagopal N, Gunasekaran K. Crystallographic and calorimetric analysis on Pleurotus ostreatus lectin and its sugar complexes - promiscuous binding driven by geometry. Int J Biol Macromol 2020; 152:862-872. [PMID: 32112837 DOI: 10.1016/j.ijbiomac.2020.02.294] [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: 12/13/2019] [Revised: 02/21/2020] [Accepted: 02/25/2020] [Indexed: 11/15/2022]
Abstract
Carbohydrate recognition is established as a property of lectins and implicated in many functions including immunity and defense against pathogens. Many lectins are characterized and proposed for various applications owing to the above said recognition. The crystal structure of a lectin from Pleurotus ostreatus has been determined and shown to be calcium dependent. The overall structure is a tandem repeat of two β-jelly roll domains, a new fold for lectins. The calcium dependence of sugar binding is analyzed in-detail through isothermal titration calorimetry. The serendipitous observation of malonate and glycerol, the intentional N-Acetyl-D-galactosamine, D-Galactose and L-Rhamnose binding to Pleurotus ostreatus lectin by Ca2+ coordination revealed that the binding site is promiscuous. Among these sugars, Rhamnose binding found to be thermodynamically most favourable. In all these structures, a vicinal diol motif, one at axial and the other at equatorial positions could be established as a specific requirement for binding. Interestingly, when compared with other calcium mediated lectin structures; this geometric requirement is found conserved. This observation could lead to the conclusion that lectins are not 'molecule specific' but 'geometry specific' so that any molecule not necessarily a sugar may be recognized by this lectin if the geometry exists.
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Affiliation(s)
- S Vajravijayan
- Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India
| | - S Pletnev
- Leidos Biomedical Research, Inc., Basic Research Program, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA
| | - Z Luo
- Synchrotron Radiation Research Section, MCL, National Cancer Institute, Argonne National Laboratory, Argonne, IL 60439, USA; Institute of Molecular Enzymology, Soochow University, Suzhou, Jiangsu 215123, China
| | - V Z Pletnev
- 117997, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - N Nandhagopal
- Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India.
| | - K Gunasekaran
- Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India.
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Hepatoprotective Effects of Pleurotus ostreatus Protein Hydrolysates Yielded by Pepsin Hydrolysis. Catalysts 2020. [DOI: 10.3390/catal10060595] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Pleurotus ostreatus protein extract (POPE) was prepared by the alkali precipitation method with 0.3% (w/v) NaOH. POPEP-III with a MW of 3000–5000 Da was acquired by pepsin enenzymatic hydrolysis. POPEP-III displayed noteworthy effects of 1,1-diphenyl-2-picrylhydrazyl DPPH and H2O2 scavenging activities, Fe2+ chelating ability, lipid peroxidation inhibition capacity, and metal reducing power. The administration of POPEP-III in mice significantly prevented prior CCl4-induced strengthen serum ALT and AST activities, changing from 365.44 ± 36.87 IU/L to 220.23 ± 22.27 IU/L and 352.52 IU/L to 206.75 ± 17.26 IU/L, respectively (p < 0.001), and suppressed hepatic malondialdehyde (MDA) formation from 15.28 ± 3.47 nmol/mg prot to 10.04 ± 2.06 nmol/mg prot (p < 0.001). Mice treated with POPEP-III demonstrated augmented activities of superoxide dismutase (SOD) in the liver, from 187.49 ± 19.81 U/mg prot to 233.35 ± 34.23 U/mg prot, and of glutathione peroxidase (GSH-Px), from 84.01 ± 14.54 U/mg prot to 115.9 ± 16.57 U/mg prot (p < 0.05). POPEP-III also prevented CCl4-induced oxidative liver histological alteration. The results suggest that POPEP-III can protect the liver from CCl4-induced oxidative damage.
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El-Araby MM, El-Shatoury EH, Soliman MM, Shaaban HF. Characterization and antimicrobial activity of lectins purified from three Egyptian leguminous seeds. AMB Express 2020; 10:90. [PMID: 32415415 PMCID: PMC7229064 DOI: 10.1186/s13568-020-01024-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Accepted: 05/04/2020] [Indexed: 12/22/2022] Open
Abstract
Lectins are carbohydrate-binding proteins that play vital roles in many biological processes. In this study, lectins from three Egyptian cultivars (fava bean, lentil, and pea) were isolated by precipitation with different concentrations of ammonium sulfate. The purification process was performed by affinity chromatography using mannose agarose. The highest concentration of purified lectins (1.48 mg/g) was recorded in pea at 90% saturation. SDS-PAGE of the purified lectins revealed bands of low molecular weights (14 to 18 kDa). The complete amino acid sequences of purified lectins were assessed using mass spectrometry (MS), which indicated the presence of the peptides favin, p54, and psl in fava bean, lentil, and pea, respectively. The lectins showed antimicrobial activity. The highest inhibition zone (35 mm) was measured with lectin purified from lentil against Staphylococcus aureus ATCC 6538, followed by pea lectin (33.4 mm) against Pseudomonas aeruginosa ATCC 10145. To the best of our knowledge, the legume lectins in this study are the first lectins to exhibit antifungal activity against Candida albicans, with the maximum inhibition zone (25.1 mm) observed with purified lectins of fava bean. Additionally, the first scanning electron microscope (SEM) images showing agglutination and clumping of microbial cells exposed to tested lectins are provided. These findings proved that Egyptian legume lectins are distinct from other lectins reported in previous studies and demonstrated their potential as antimicrobial agents against human pathogenic microorganisms.
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Kumar K. Nutraceutical Potential and Processing Aspects of Oyster Mushrooms (PleurotusSpecies). CURRENT NUTRITION & FOOD SCIENCE 2020. [DOI: 10.2174/1573401314666181015111724] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:Oyster mushrooms (Pleurotus species) have gained considerable attention of food technologist and nutritionist for their nutraceutical properties. Oyster mushrooms are considered as functional foods due to their richness in functional food ingredients. In recent times, consumption of these mushrooms has increased considerably due to their numerous health benefits. These are potential sources of bioactive components, which are sufficient enough for prevention and treatment of various lifestyle diseases. There are about 200 different species in the genus Pleurotus and these are commonly referred to as “oyster mushrooms”.Objective:The study aimed to grasp a collective information on nutraceutical and processing aspects of highly perishable but nutritious oyster mushroomResults:Pleurotus ostreatus is the most commonly consumed species all over the world due to its superior flavor, taste and nutraceutical properties. It acts as a source of natural antioxidants which might be beneficial for human health in preventing or reducing oxidative damage. Nutritionally, these species are rich sources of proteins, dietary fibres, β-glucan, vitamin B-complex, vitamin C and minerals. They contain higher proportions of certain amino acids such as methionine, cystine and aspartic acid than other edible mushrooms. Oyster mushrooms have been reported to possess hypocholesterolemic, anti-bacterial, anti-diabetic, anti-oxidant, anti-arthritic, anti-carcinogenic, hepatoprotective, anti-viral activities and act as natural resources of immunotherapy activities. The use of these mushrooms can overcome the deficiency of protein in the developing countries where there is unavailability or unacceptability of good quality proteins from animal sources because of religious restrictions.Conclusion:Because of the occurrence of abundant nutritional ingredients and other bioactive components in P. ostreatus, they have a great scope as a potential source for the development of functional or specialty foods for value addition of deficient foods so as to alleviate the nutritional deficiency diseases from society.
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Affiliation(s)
- Krishan Kumar
- Department of Food Technology, Akal College of Agriculture, Eternal University, Baru Sahib, Sirmour, HP-173101, India
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Sclerotium rolfsii lectin induces opposite effects on normal PBMCs and leukemic Molt-4 cells by recognising TF antigen and its variants as receptors. Glycoconj J 2020; 37:251-261. [PMID: 31900725 DOI: 10.1007/s10719-019-09905-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 11/13/2019] [Accepted: 12/20/2019] [Indexed: 01/02/2023]
Abstract
Sclerotium rolfsii lectin (SRL) exerts apoptotic effect against various cancer cells and an antitumor activity on mice with colon and breast cancer xenografts. The current study aimed to explore its exquisite carbohydrate specificity on human peripheral blood mononuclear cells (PBMCs) and leukemic T-cells. SRL, showed strong binding (>98%) to resting/activated PBMCs, leukemic Molt-4 and Jurkat cell lines. The glycans mediated binding to these cells was effectively blocked by mucin and fetuin, exhibiting 97% and 94% inhibition respectively. SRL showed mitogenic stimulation of PBMCs at 10 μg/ml as determined by thymidine incorporation assay. In contrast, lectin induced a dose dependent growth inhibition of Molt-4 cells with 58% inhibition at 25 μg/ml. Many common membrane receptors in activated PBMCs, Molt 4 and Jurkat cells were identified by lectin blotting. However, membrane receptors that are recognized by SRL in normal resting PBMCs were totally different and are high molecular weight glycoproteins. Treatment of membrane receptors with glycosidases prior to lectin probing, revealed that fucosylated Thomsen-Friedenreich(TF) antigen glycans are increasingly expressed on transformed Molt-4 leukemic cells compared to other cells. The findings highlight the opposite effects of SRL on transformed and normal hematopoietic cells by recognizing different glycan-receptors. SRL has promising potential for diagnostics and therapeutic applications in leukaemia.
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Trehalose induced by reactive oxygen species relieved the radial growth defects of Pleurotus ostreatus under heat stress. Appl Microbiol Biotechnol 2019; 103:5379-5390. [PMID: 31069486 DOI: 10.1007/s00253-019-09834-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 03/27/2019] [Accepted: 04/04/2019] [Indexed: 10/26/2022]
Abstract
Trehalose is a nonreducing disaccharide, and it plays an intracellular protective role in organisms under various stress conditions. In this study, the trehalose synthesis and its protective role in Pleurotus ostreatus were investigated. As a signal in metabolic regulation, reactive oxygen species (ROS) accumulated in the mycelia of P. ostreatus under heat stress (HS). Furthermore, mycelial growth was significantly inhibited, and the malondialdehyde (MDA) level significantly increased under HS. First, exogenous addition of H2O2 inhibited mycelial growth and elevated the MDA level, while N-acetyl cysteine (NAC) and vitamin C (VC) reduced the MDA level and recovered mycelial growth under HS by scavenging ROS. These results indicated that the mycelial radial growth defect under HS might be partly caused by ROS accumulation. Second, adding NAC and VC to the media resulted in rescued trehalose accumulation, which indicated that ROS has an effect on inducing trehalose synthesis. Third, the mycelial growth was recovered by addition of trehalose to the media after HS, and the MDA level was reduced. This effect was further verified by the overexpression of genes for trehalose-6-phosphate synthase (TPS) and neutral trehalase (NTH), which led to increased and reduced trehalose content, respectively. In addition, adding validamycin A (NTH inhibitor) to the media promoted trehalose accumulation and the recovered mycelial growth after HS. In conclusion, trehalose production was partly induced by ROS accumulation in the mycelia under HS, and the accumulated trehalose could promote the recovery of growth after HS, partly by reducing the MDA level in the mycelia.
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Oladokun BO, Omisore ON, Osukoya OA, Kuku A. Anti-nociceptive and anti-inflammatory activities of Tetracarpidium conophorum seed lectin. SCIENTIFIC AFRICAN 2019. [DOI: 10.1016/j.sciaf.2019.e00073] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Zhou R, Liu ZK, Zhang YN, Wong JH, Ng TB, Liu F. Research Progress of Bioactive Proteins from the Edible and Medicinal Mushrooms. Curr Protein Pept Sci 2019; 20:196-219. [DOI: 10.2174/1389203719666180613090710] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Revised: 04/10/2018] [Accepted: 05/25/2018] [Indexed: 01/04/2023]
Abstract
For centuries, mushrooms have been widely used as traditional Chinese medicine in Asia.
Apart from polysaccharides and some small-molecule components, such as flavones, polyphenols and
terpenes, mushrooms produce a large number of pharmaceutically active proteins, which have become
popular sources of natural antitumor, antimicrobial, immunoenhancing agents. These bioactive proteins
include lectins, laccases, Ribosome Inactivating Proteins (RIPs), nucleases, and Fungal Immunomodulatory
Proteins (FIPs). The review is to summarize the characterstics of structure and bioactivities involved
in antitumor, antiviral, antifungal, antibacterial and immunoenhancing activities of proteins from
edible mushrooms, to better understand their mechanisms, and to direct research.
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Affiliation(s)
- Rong Zhou
- College of Chemical Engineering, Xiangtan University, Xiangtan, Hunan, 411105, China
| | - Zhao Kun Liu
- Department of History, Carnegie Mellon University, Pittsburgh, PA 15213, United States
| | - Ye Ni Zhang
- Department of Microbiology, The Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, Nankai University, Tianjin, 300071, China
| | - Jack Ho Wong
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Tzi Bun Ng
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Fang Liu
- Department of Microbiology, The Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, Nankai University, Tianjin, 300071, China
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Wang H, Gao G, Ke L, Zhou J, Rao P. Isolation and Characterization of a Lectin-like Protein (SBLP) from the Dried Roots of Scutellaria baicalensis (Lamiaceae). Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801301232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A novel lectin-like protein with MW 63.2 kDa, designated as SBLP, has been isolated and characterized from the dried roots of Scutellaria baicalensis Georgi (Lamiaceae). SBLP was purified by ammonium sulfate precipitation and anion exchange chromatography. It is a glycoprotein according to a PAS staining assay and consisting of protein (86.0%) and sugar (14.0%). Its N-terminal amino acid sequence was determined as GSAVGFLY by Edman degradation. SBLP showed hemagglutinating activity against human and rooster erythrocytes, which were stable below 60°C and in the pH range of 4 −10. Furthermore, SBLP was found to be stimulated by Ca2+, Na+, Ba2+, Zn2+ ions, which suggested it was a metal-dependent lectin. SBLP inhibited the growth of Fusarium oxysporum f.sp. lycopersici and Alternaria eichhorniae in the a dose-dependent manner, and suppressed the proliferation of HepG2 tumor cells with an IC50 of 1.00 μM. This is the first report of a lectin from Radix Scutellariae.
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Affiliation(s)
- Huiqin Wang
- Food Nutrition Sciences Centre, Zhejiang Gongshang University, Hangzhou, China, 310012
| | - Guanzhen Gao
- Food Nutrition Sciences Centre, Zhejiang Gongshang University, Hangzhou, China, 310012
| | - Lijing Ke
- Food Nutrition Sciences Centre, Zhejiang Gongshang University, Hangzhou, China, 310012
| | - Jianwu Zhou
- Food Nutrition Sciences Centre, Zhejiang Gongshang University, Hangzhou, China, 310012
| | - Pingfan Rao
- Food Nutrition Sciences Centre, Zhejiang Gongshang University, Hangzhou, China, 310012
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Ogbomida ET, Omofonmwan K, Aganmwonyi I, Fasipe IP, Enuneku A, Ezemonye LI. Bioactive profiling and therapeutic potential of mushroom ( Pleurotus tuberregium) extract on Wistar albino rats ( Ratus norvegicus) exposed to arsenic and chromium toxicity. Toxicol Rep 2018; 5:401-410. [PMID: 29854610 PMCID: PMC5978012 DOI: 10.1016/j.toxrep.2018.03.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 02/11/2018] [Accepted: 03/05/2018] [Indexed: 02/06/2023] Open
Abstract
Mushroom species are valued in gourmet traditions around the world for their unique taste, aroma, nutritional value and medicinal potentials. The bioactive profiling of P. tuberregium mushroom was evaluated to determine it therapeutic effect on Wistar albino rats exposed to arsenic (As) and chromium (Cr) toxicity. Proximate analysis of P. tuberregium showed high composition of carbohydrate (80.24) followed by moisture (21.16), protein (11.46), ash (3.03) and fibre (0.25) content. Phytochemical analysis revealed the presence of polyphenols (2.58), alkaloid (2.46), oxalate (4.25), flavonoid (1.68), tannin (0.38) and Saponin (trace) in trace amount. Mineral analysis yielded variable amounts of Na, Mg, K and Ca. Therapeutics assessment of P. tuberregium to Wistar albino rats exposed to As-Cr toxicity showed improved feed and water intake during the exposure duration. Haematological indices revealed significant increase in platelet (PLT), granulocytes and monocytes while lymphocyte (LY) and red cell distribution width (RDW) were low. Biochemical and redox marker of liver and kidney profiles showed decrease in alkaline phosphatase (ALP), alanine transaminase (ALT) and aspartate transaminase (AST) in the liver. Creatinine and urea in the kidney also decrease while total protein increased significantly. Malondialdehyde (MDA), reduced glutathione (GSH), superoxide dismutase (SOD), glutathione S-transferase (GST) decrease in the liver and kidney of the therapeutic group when compared with As-Cr treated rats. The presence of alkaloids and flavonoids in significant amount may have contributed in the therapeutic changes observed in all the parameters. Therefore, our findings conclude that P. tuberregium possessed remarkable effect against As-Cr induced toxicity in albino rats and may be useful in metal toxicity treatment in man and may be concluded that they are therapeutically effective.
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Affiliation(s)
- Emmanuel Temiotan Ogbomida
- Ecotoxicology and Environmental Forensic Unit, National Centre for Energy and Environment, (Energy Commission of Nigeria), University of Benin, Benin City, Nigeria
| | - Kate Omofonmwan
- Department of Environmental Studies and Resource Management, School of Science and Technology, National Open University of Nigeria, Benin Study Centre, Benin City, Edo State, Nigeria
| | - Igiogbe Aganmwonyi
- Ecotoxicology and Environmental Forensic Unit, National Centre for Energy and Environment, (Energy Commission of Nigeria), University of Benin, Benin City, Nigeria
| | - Iriagbonse Priscillia Fasipe
- Ecotoxicology and Environmental Forensic Unit, National Centre for Energy and Environment, (Energy Commission of Nigeria), University of Benin, Benin City, Nigeria
| | - Alex Enuneku
- Department of Environmental Management and Toxicology, Faculty of Life Sciences, University of Benin, P.M.B 1154, Benin City, Nigeria
| | - Lawrence I.N. Ezemonye
- Department of Animal and Environmental Biology, Faculty of Life Sciences, University of Benin, Benin City, Nigeria
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Bao DP, Ma YW, Gong M, Li Y, Gao YN, Yang RH, Yang RF, Mao WJ, Wang Y. Sequence analysis and heterologous expression of lectin-like gene CMLec3 from the medicinal fungus Cordyceps militaris. MYCOSCIENCE 2018. [DOI: 10.1016/j.myc.2017.09.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Zheng S, Shan L, Zhuang Y, Shang Y. Identification of pyrG Used as an Endogenous Reference Gene in Qualitative and Real-Time Quantitative PCR Detection of Pleurotus ostreatus. J Food Sci 2018; 83:750-755. [PMID: 29465750 DOI: 10.1111/1750-3841.14072] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2017] [Revised: 01/08/2018] [Accepted: 01/12/2018] [Indexed: 11/28/2022]
Abstract
As a well-known edible fungus rich in nutrients, Pleurotus ostreatus has been used as an alternative to expensive wild edible fungi. Specifically, the fact that using P. ostreatus instead of other expensive wild edible fungi has damaged the rights and interests of consumers. Among the existing methods for detection of food adulteration, the amplification of endogenous reference gene is the most accurate method. However, an ideal endogenous reference gene for P. ostreatus has yet to be developed. In this study, a DNA extraction method for P. ostreatus was optimized, and pyrG was selected as a species-specific gene through sequence alignment. This gene was subsequently subjected to qualitative and quantitative Polymerase Chain Reaction (PCR) assays with 3 different P. ostreatus varieties and 7 other species. A low detection limit of 5 pg/μL was obtained by TaqMan quantitative PCR, and no pyrG amplification product was observed in the 7 other species. No allelic variation was detected in P. ostreatus varieties. These experiments confirmed that pyrG was an ideal endogenous reference gene for the qualitative and real-time quantitative PCR detection of P. ostreatus. This method was also suitable for the examination of processed P. ostreatus samples and determination of adulteration in wild mushrooms. PRACTICAL APPLICATION The pyrG gene was chosen as an ideal endogenous reference gene for the qualitative and real-time quantitative PCR detection of P. ostreatus, and the detection limit was 5 pg/μL for the quantification. This method is used not only for raw materials but also for processed P. ostreatus products and other processed mushroom foods.
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Affiliation(s)
- Shi Zheng
- Yunnan Inst. of Food Safety, Kunming Univ. of Science and Technology, Yunnan 650500, China
| | - Luying Shan
- Yunnan Inst. of Food Safety, Kunming Univ. of Science and Technology, Yunnan 650500, China
| | - Yongliang Zhuang
- Yunnan Inst. of Food Safety, Kunming Univ. of Science and Technology, Yunnan 650500, China
| | - Ying Shang
- Yunnan Inst. of Food Safety, Kunming Univ. of Science and Technology, Yunnan 650500, China.,Beijing Laboratory of Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural Univ., Beijing 100083, China
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28
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Lei M, Wu X, Zhang J, Wang H, Huang C. Establishment of an efficient transformation system for Pleurotus ostreatus. World J Microbiol Biotechnol 2017; 33:214. [PMID: 29164387 DOI: 10.1007/s11274-017-2378-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Accepted: 11/17/2017] [Indexed: 01/30/2023]
Abstract
Pleurotus ostreatus is widely cultivated worldwide, but the lack of an efficient transformation system regarding its use restricts its genetic research. The present study developed an improved and efficient Agrobacterium tumefaciens-mediated transformation method in P. ostreatus. Four parameters were optimized to obtain the most efficient transformation method. The strain LBA4404 was the most suitable for the transformation of P. ostreatus. A bacteria-to-protoplast ratio of 100:1, an acetosyringone (AS) concentration of 0.1 mM, and 18 h of co-culture showed the best transformation efficiency. The hygromycin B phosphotransferase gene (HPH) was used as the selective marker, and EGFP was used as the reporter gene in this study. Southern blot analysis combined with EGFP fluorescence assay showed positive results, and mitotic stability assay showed that more than 75% transformants were stable after five generations. These results showed that our transformation method is effective and stable and may facilitate future genetic studies in P. ostreatus.
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Affiliation(s)
- Min Lei
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences; Key Laboratory of Microbial Resources, Ministry of Agriculture, 12 Zhongguancun South Street, Beijing, 100081, People's Republic of China
- State Key Laboratory for Agrobiotechnology, Department of Microbiology, China Agricultural University, Beijing, People's Republic of China
| | - Xiangli Wu
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences; Key Laboratory of Microbial Resources, Ministry of Agriculture, 12 Zhongguancun South Street, Beijing, 100081, People's Republic of China
| | - Jinxia Zhang
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences; Key Laboratory of Microbial Resources, Ministry of Agriculture, 12 Zhongguancun South Street, Beijing, 100081, People's Republic of China
| | - Hexiang Wang
- State Key Laboratory for Agrobiotechnology, Department of Microbiology, China Agricultural University, Beijing, People's Republic of China
| | - Chenyang Huang
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences; Key Laboratory of Microbial Resources, Ministry of Agriculture, 12 Zhongguancun South Street, Beijing, 100081, People's Republic of China.
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29
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He M, Su D, Liu Q, Gao W, Kang Y. Mushroom lectin overcomes hepatitis B virus tolerance via TLR6 signaling. Sci Rep 2017; 7:5814. [PMID: 28724955 PMCID: PMC5517594 DOI: 10.1038/s41598-017-06261-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Accepted: 06/09/2017] [Indexed: 01/17/2023] Open
Abstract
Currently, chronic hepatitis B virus (HBV) infection remains a serious public health problem in the world. Recombinant HBV vaccine, as a preventive strategy against HBV infection, generates high antibody level, but it is not effective to activate innate and cellular immunity for chronic HBV infection therapy. Lectins from mushroom are natural and active proteins which have been shown important biological functions. However, little is known about the immunological mechanism engaged by mushroom lectins. Here we report that, lectin from Pleurotus ostreatus (POL) stimulated innate response by activating Toll-like receptor 6 signal pathway of dendritic cells. Subsequently POL enhanced HBV specific antibody level and follicular helper T cells response which overcame HBV tolerance in transgenic mice. This study suggests a novel mechanism for POL acting on immune response and a therapeutic approach to break HBV tolerance.
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Affiliation(s)
- Meina He
- State Key Laboratory for Agro-Biotechnology, College of Biological Science, China Agricultural University, Beijing, China
| | - Dan Su
- State Key Laboratory for Agro-Biotechnology, College of Biological Science, China Agricultural University, Beijing, China
| | - Qinghong Liu
- State Key Laboratory for Agro-Biotechnology, College of Biological Science, China Agricultural University, Beijing, China
| | - Wenjuan Gao
- State Key Laboratory for Agro-Biotechnology, College of Biological Science, China Agricultural University, Beijing, China
| | - Youmin Kang
- State Key Laboratory for Agro-Biotechnology, College of Biological Science, China Agricultural University, Beijing, China.
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30
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Lei M, Wu X, Zhang J, Wang H, Huang C. Gene cloning, expression, and characterization of trehalose-6-phosphate synthase from Pleurotus ostreatus. J Basic Microbiol 2017; 57:580-589. [PMID: 28513878 DOI: 10.1002/jobm.201700120] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 04/22/2017] [Accepted: 04/30/2017] [Indexed: 02/05/2023]
Abstract
Trehalose-6-phosphate synthase (TPS; EC2.4.1.15) catalyzes the first step in trehalose synthesis, which involves transfer of glucose from uridine diphosphate glucose (UDPG) to glucose 6-phosphate (G6P) to form trehalose-6-phosphate. To determine the gene and enzymatic characteristics of TPS in Pleurotus ostreatus, we cloned and sequenced the cDNA of PoTPS1, which contains a 1665 bp open reading frame that encodes a 554-amino acid protein with a predicted molecular weight of 62.01 kDa. This gene was expressed in Escherichia coli BL21 and then the recombinant protein was purified and characterized. Results showed that the optimum pH and temperature for the recombinant PoTPS1 were 7.4 and 30 °C, respectively; the Km value against G6P and UDPG were 0.14 and 0.17 mM, respectively, and the Vmax and Kcat values were 91.86 nkat/g and 5.89 s-1 , respectively. Trehalose content was as high as 158.88 mg g-1 dry weight after heat treatment at 40 °C for 15 h, which was consistent with highest TPS1 activity at that time point. This result indicated that PoTPS1 was responsible for trehalose synthesis in P. ostreatus.
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Affiliation(s)
- Min Lei
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, P.R. China.,Key Laboratory of Microbial Resources, Ministry of Agriculture, Beijing, P.R. China.,Department of Microbiology, State Key Laboratory for Agrobiotechnology, China Agricultural University, Beijing, P.R. China
| | - Xiangli Wu
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, P.R. China.,Key Laboratory of Microbial Resources, Ministry of Agriculture, Beijing, P.R. China
| | - Jinxia Zhang
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, P.R. China.,Key Laboratory of Microbial Resources, Ministry of Agriculture, Beijing, P.R. China
| | - Hexiang Wang
- Department of Microbiology, State Key Laboratory for Agrobiotechnology, China Agricultural University, Beijing, P.R. China
| | - Chenyang Huang
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, P.R. China.,Key Laboratory of Microbial Resources, Ministry of Agriculture, Beijing, P.R. China
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31
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Nayak D, Ashe S, Ranjan Rauta P, Nayak B. Assessment of antioxidant, antimicrobial and anti-osteosarcoma potential of four traditionally used Indian medicinal plants. J Appl Biomed 2017. [DOI: 10.1016/j.jab.2016.10.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
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32
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Carrasco-González JA, Serna-Saldívar SO, Gutiérrez-Uribe JA. Nutritional composition and nutraceutical properties of the Pleurotus fruiting bodies: Potential use as food ingredient. J Food Compost Anal 2017. [DOI: 10.1016/j.jfca.2017.01.016] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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33
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Ng T, Ngai PH, Xia L. An agglutinin with mitogenic and antiproliferative activities from the mushroomFlammulina velutipes. Mycologia 2017. [DOI: 10.1080/15572536.2006.11832688] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
| | - Patrick H.K. Ngai
- Department of Biochemistry, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Lixin Xia
- Department of Biochemistry, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China, and College of Life Science, Shenzhen University, Shenzhen, China
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34
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Beattie KD, Ulrich R, Grice ID, Uddin SJ, Blake TB, Wood KA, Steele J, Iu F, May TW, Tiralongo E. Ethanolic and aqueous extracts derived from Australian fungi inhibit cancer cell growth in vitro. Mycologia 2017; 103:458-65. [DOI: 10.3852/10-121] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | - Rahel Ulrich
- School of Pharmacy, Griffith University, Gold Coast campus, Queensland 4222, Australia
| | - I. Darren Grice
- Institute for Glycomics, Griffith University, Gold Coast campus, Queensland 4222, Australia
| | | | | | | | | | - Fontaine Iu
- School of Pharmacy, Griffith University, Gold Coast campus, Queensland 4222, Australia
| | - Tom W. May
- Royal Botanic Gardens Melbourne, South Yarra 3141, Australia
| | - Evelin Tiralongo
- School of Pharmacy and Griffith Health Institute, Griffith University, Gold Coast campus, Queensland 4222, Australia
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35
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Lu YP, Chen RL, Long Y, Li X, Jiang YJ, Xie BG. A Jacalin-Related Lectin Regulated the Formation of Aerial Mycelium and Fruiting Body in Flammulina velutipes. Int J Mol Sci 2016; 17:E1884. [PMID: 27916794 PMCID: PMC5187758 DOI: 10.3390/ijms17121884] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 11/02/2016] [Accepted: 11/08/2016] [Indexed: 01/15/2023] Open
Abstract
Flammulina velutipes, one of the most popular mushroom species in the world, has been recognized as a useful model system to study the biochemical and physiological aspects of the formation and elongation of fruit body. However, few reports have been published on the regulation of fruiting body formation in F. velutipes at the molecular level. In this study, a jacalin-related lectin gene from F. velutipes was characterized. The phylogenetic tree revealed that Fv-JRL1 clustered with other basidiomycete jacalin-like lectins. Moreover, the transcriptional pattern of the Fv-JRL1 gene in different developmental stages of F. velutipes implied that Fv-JRL1 could be important for formation of fruit body. Additionally, RNA interference (RNAi) and overexpression analyses provided powerful evidence that the lectin gene Fv-JRL1 from F. velutipes plays important roles in fruiting body formation.
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Affiliation(s)
- Yuan-Ping Lu
- Mycological Research Center, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Ren-Liang Chen
- Mycological Research Center, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Ying Long
- Mycological Research Center, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Xiao Li
- Mycological Research Center, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Yu-Ji Jiang
- College of Food Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Bao-Gui Xie
- Mycological Research Center, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
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36
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Duarte CEM, Abranches MV, Silva PF, de Paula SO, Cardoso SA, Oliveira LL. A new TRAF-like protein from B. oleracea ssp. botrytis with lectin activity and its effect on macrophages. Int J Biol Macromol 2016; 94:508-514. [PMID: 27771409 DOI: 10.1016/j.ijbiomac.2016.10.061] [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] [Received: 03/06/2016] [Revised: 10/16/2016] [Accepted: 10/18/2016] [Indexed: 10/20/2022]
Abstract
Lectins are involved in a wide range of biological mechanisms, like immunomodulatory agent able to activate the innate immunity. In this study, we purified and characterized a new lectin from cauliflower (Brassica oleracea ssp. botrytis - BOL) by three sequential chromatographic steps and confirmed the purity by SDS-PAGE. Additionally, we evaluated the role of the lectin in innate immunity by a phagocytosis assay, production of H2O2 and NO. BOL was characterized like a non-glycosylated protein that showed a molecular mass of ∼34kDa in SDS-PAGE. Its N-terminal sequence (ETRAFREERPSSKIVTIAG) did not reveal any similarity to the other lectins; nevertheless, it showed 100% homology to a putative TRAF-like protein from Brassica rapa and Brassica napus. This is a first report of the TRAF-protein with lectinic activity. The BOL retained its complete hemagglutination activity from 4°C up to 60°C, with stability being more apparent between pH 7.0 and 8.0. Moreover, the lectin was able to stimulate phagocytosis and induce the production of H2O2 and NO. Therefore, BOL can be explored as an immunomodulatory agent by being able to activate the innate immunity and favor antigen removal.
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Affiliation(s)
- Christiane E M Duarte
- Departamento de Biologia Geral, Universidade Federal de Viçosa, 36570-900 Viçosa, MG, Brazil
| | - Monise V Abranches
- Departamento de Nutrição e Saúde, Universidade Federal de Viçosa, 38810-000 Rio Paranaíba, MG, Brazil
| | - Patrick F Silva
- Departamento de Biologia Geral, Universidade Federal de Viçosa, 36570-900 Viçosa, MG, Brazil
| | - Sérgio O de Paula
- Departamento de Biologia Geral, Universidade Federal de Viçosa, 36570-900 Viçosa, MG, Brazil
| | - Silvia A Cardoso
- Departamento de Medicina e Enfermagem, Universidade Federal de Viçosa, 36570-900 Viçosa, MG, Brazil
| | - Leandro L Oliveira
- Departamento de Biologia Geral, Universidade Federal de Viçosa, 36570-900 Viçosa, MG, Brazil.
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37
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Ng TB, Cheung RCF, Wong JH, Chan YS, Dan X, Pan W, Wang H, Guan S, Chan K, Ye X, Liu F, Xia L, Chan WY. Fungal proteinaceous compounds with multiple biological activities. Appl Microbiol Biotechnol 2016; 100:6601-6617. [PMID: 27338574 DOI: 10.1007/s00253-016-7671-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 06/02/2016] [Accepted: 06/07/2016] [Indexed: 11/30/2022]
Abstract
Fungi comprise organisms like molds, yeasts and mushrooms. They have been used as food or medicine for a long time. A large number of fungal proteins or peptides with diverse biological activities are considered as antibacterial, antifungal, antiviral and anticancer agents. They encompass proteases, ribosome inactivating proteins, defensins, hemolysins, lectins, laccases, ribonucleases, immunomodulatory proteins, and polysaccharopeptides. The target of the present review is to update the status of the various bioactivities of these fungal proteins and peptides and discuss their therapeutic potential.
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Affiliation(s)
- Tzi Bun Ng
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.
| | - Randy Chi Fai Cheung
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.
| | - Jack Ho Wong
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.
| | - Yau Sang Chan
- State Key Laboratory of Respiratory Disease for Allergy at Shenzhen University, School of Medicine, Shenzhen University, Nanhai Ave 3688, 518060, Shenzhen, Guangdong, People's Republic of China
| | - Xiuli Dan
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Wenliang Pan
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Hexiang Wang
- State Key Laboratory for Agrobiotechnology and Department of Microbiology, China Agricultural University, Beijing, 100193, China
| | - Suzhen Guan
- Department of Social Medicine, College of Public Health, Xinjiang Medical University, Urumqi, 830011, China
| | - Ki Chan
- Biomedical and Tissue Engineering Research Group, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, 34 Hospital Road, Hong Kong, China
| | - Xiuyun Ye
- College of Biological Sciences and Technology, Fuzhou University, Fuzhou, Fujian, China.,Fujian Key Laboratory of Marine Enzyme Engineering, Fuzhou, Fujian, China
| | - Fang Liu
- Department of Microbiology, Nankai University, Tianjin, China
| | - Lixin Xia
- State Key Laboratory of Respiratory Disease for Allergy at Shenzhen University, School of Medicine, Shenzhen University, Nanhai Ave 3688, 518060, Shenzhen, Guangdong, People's Republic of China
| | - Wai Yee Chan
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China.
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38
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Wu J, Wang J, Wang S, Rao P. Lunatin, a novel lectin with antifungal and antiproliferative bioactivities from Phaseolus lunatus billb. Int J Biol Macromol 2016; 89:717-24. [PMID: 27164500 DOI: 10.1016/j.ijbiomac.2016.04.092] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Revised: 04/27/2016] [Accepted: 04/27/2016] [Indexed: 02/08/2023]
Abstract
A novel lectin with a molecular mass of 24.3kDa, designated Lunatin, was isolated from edible seeds of Phaseolus lunatus billb. The purification scheme consisted of ammonium sulfate precipitation, affinity chromatography, ion exchange chromatography, and gel filtration chromatography. The lectin is a glycoprotein, as determined by staining with periodic acid-Schiff (PAS), and its N-terminal amino acid sequence was determined to be DAVIYRGPGDLHTGS. Lunatin exhibited hemagglutinating activity towards human blood group A erythrocytes, which was mostly preserved up to 50°C and retained at ambient temperature at pH 2.0-11.0. d-fructose, d-galactose, d-glucose, and mannitol were capable of inhibiting its hemagglutinating activity. Lunatin was found to be a metal-dependent protein, as its activity was inhibited by the metallic compounds K2Cr2O7, SnCl2, and LiCl, though it was unaffected by MgCl2, ZnCl2, BaCl2, CuCl2, FeCl3, or CaCl2. In addition, Lunatin exerted potent antifungal activity toward a variety of fungal species, including Sclerotium rolfsii, Physalospora piricola, Fusarium oxysporum, and Botrytis cinerea. Finally, proliferation of K562 leukemia cells was strongly inhibited by Lunatin, with an IC50 of 13.7μM, whereas HeLa and HepG2 cells were only weakly affected. These findings further the identification and understanding of functional factors in edible plant seeds.
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Affiliation(s)
- Jinhong Wu
- College of Biological Science and Engineering, Fuzhou University, No. 2 Xueyuan Road, Minhou District, Fuzhou 350108, China; Department of Food Science and Engineering, Shanghai Food Safety and Engineering Center, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Jun Wang
- College of Biological Science and Engineering, Fuzhou University, No. 2 Xueyuan Road, Minhou District, Fuzhou 350108, China
| | - Shaoyun Wang
- College of Biological Science and Engineering, Fuzhou University, No. 2 Xueyuan Road, Minhou District, Fuzhou 350108, China.
| | - Pingfan Rao
- College of Biological Science and Engineering, Fuzhou University, No. 2 Xueyuan Road, Minhou District, Fuzhou 350108, China
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39
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Ren XM, Li DF, Jiang S, Lan XQ, Hu Y, Sun H, Wang DC. Structural Basis of Specific Recognition of Non-Reducing Terminal N-Acetylglucosamine by an Agrocybe aegerita Lectin. PLoS One 2015; 10:e0129608. [PMID: 26114302 PMCID: PMC4483166 DOI: 10.1371/journal.pone.0129608] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Accepted: 05/11/2015] [Indexed: 01/08/2023] Open
Abstract
O-linked N-acetylglucosaminylation (O-GlcNAcylation) is a reversible post-translational modification that plays essential roles in many cellular pathways. Research in this field, however, is hampered by the lack of suitable probes to identify, accumulate, and purify the O-GlcNAcylated proteins. We have previously reported the identification of a lectin from the mushroom Agrocybe aegerita, i.e., Agrocybe aegerita lectin 2, or AAL2, that could bind terminal N-acetylglucosamine with higher affinities and specificity than other currently used probes. In this paper, we report the crystal structures of AAL2 and its complexes with GlcNAc and GlcNAcβ1-3Galβ1-4GlcNAc and reveal the structural basis of GlcNAc recognition by AAL2 and residues essential for the binding of terminal N-acetylglucosamine. Study on AAL2 may enable us to design a protein probe that can be used to identify and purify O-GlcNAcylated proteins more efficiently.
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Affiliation(s)
- Xiao-Ming Ren
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, 15 Datun Road, Beijing, 100101, People’s Republic of China
- University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing, 100049, People’s Republic of China
| | - De-Feng Li
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, 15 Datun Road, Beijing, 100101, People’s Republic of China
| | - Shuai Jiang
- College of Life Sciences, Wuhan University, Wuhan, 430072, People’s Republic of China
| | - Xian-Qing Lan
- College of Life Sciences, Wuhan University, Wuhan, 430072, People’s Republic of China
| | - Yonglin Hu
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, 15 Datun Road, Beijing, 100101, People’s Republic of China
| | - Hui Sun
- College of Life Sciences, Wuhan University, Wuhan, 430072, People’s Republic of China
- * E-mail: (HS); (DCW)
| | - Da-Cheng Wang
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, 15 Datun Road, Beijing, 100101, People’s Republic of China
- * E-mail: (HS); (DCW)
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40
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Dan X, Wong JH, Fang EF, Chan FCW, Ng TB. Purification and Characterization of a Novel Hemagglutinin with Inhibitory Activity toward Osteocarcinoma Cells from Northeast China Black Beans. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:3903-3914. [PMID: 25816710 DOI: 10.1021/acs.jafc.5b00106] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In the present study, we isolated a novel hemagglutinin from an edible legume and explored its growth-inhibitory effect on osteocarcinoma and liver cancer cells. The protein was purified by liquid chromatography techniques which entailed affinity chromatography on Affi-gel blue gel, ion-exchange chromatography on Mono Q, and gel filtration on Superdex 75 with an FPLC system. The hemagglutinating activity of this hemagglutinin was demonstrated to be ion dependent and stable over a wide range of temperature and pH values. Antiproliferative activity was observed in the tumor cell lines MG-63 and HepG2 but not in the normal cell line WRL 68. Osteocarcinoma cells treated with the hemagglutinin underwent obvious cell shrinkage, chromatin condensation, mitochondrial membrane depolarization, and apoptosis. The mRNA expression level of interleukin-2 (IL-2), interleukin-6 (IL-6), interleukin-1 beta (IL-1β), interferon-gamma (IFN-γ), and tumor necrosis factor alpha (TNF-α) were found to be up-regulated to different extents after treatment of this hemagglutinin.
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Affiliation(s)
- Xiuli Dan
- †School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Jack Ho Wong
- †School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Evandro Fei Fang
- ‡National Institute on Aging, National Institutes of Health, 251 Bayview Boulevard, Baltimore, Maryland 21224, United States
| | - Francis Chun Wai Chan
- §School of Chinese Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Tzi Bun Ng
- †School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
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41
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Mushroom lectins: specificity, structure and bioactivity relevant to human disease. Int J Mol Sci 2015; 16:7802-38. [PMID: 25856678 PMCID: PMC4425051 DOI: 10.3390/ijms16047802] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Revised: 03/16/2015] [Accepted: 03/19/2015] [Indexed: 11/16/2022] Open
Abstract
Lectins are non-immunoglobulin proteins that bind diverse sugar structures with a high degree of selectivity. Lectins play crucial role in various biological processes such as cellular signaling, scavenging of glycoproteins from the circulatory system, cell-cell interactions in the immune system, differentiation and protein targeting to cellular compartments, as well as in host defence mechanisms, inflammation, and cancer. Among all the sources of lectins, plants have been most extensively studied. However, more recently fungal lectins have attracted considerable attention due to their antitumor, antiproliferative and immunomodulatory activities. Given that only 10% of mushroom species are known and have been taxonomically classified, mushrooms represent an enormous unexplored source of potentially useful and novel lectins. In this review we provide an up-to-date summary on the biochemical, molecular and structural properties of mushroom lectins, as well as their versatile applications specifically focusing on mushroom lectin bioactivity.
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Singh SS, Wang H, Chan YS, Pan W, Dan X, Yin CM, Akkouh O, Ng TB. Lectins from edible mushrooms. Molecules 2014; 20:446-69. [PMID: 25558856 PMCID: PMC6272671 DOI: 10.3390/molecules20010446] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Accepted: 12/23/2014] [Indexed: 11/16/2022] Open
Abstract
Mushrooms are famous for their nutritional and medicinal values and also for the diversity of bioactive compounds they contain including lectins. The present review is an attempt to summarize and discuss data available on molecular weights, structures, biological properties, N-terminal sequences and possible applications of lectins from edible mushrooms. It further aims to update and discuss/examine the recent advancements in the study of these lectins regarding their structures, functions, and exploitable properties. A detailed tabling of all the available data for N-terminal sequences of these lectins is also presented here.
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Affiliation(s)
- Senjam Sunil Singh
- Laboratory of Protein Biochemistry, Biochemistry Department, Manipur University, Canchipur, Imphal 795003, India.
| | - Hexiang Wang
- State Key Laboratory for Agrobiotechnology and Department of Microbiology, China Agricultural University, Beijing 100193, China.
| | - Yau Sang Chan
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong, China.
| | - Wenliang Pan
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong, China.
| | - Xiuli Dan
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong, China.
| | - Cui Ming Yin
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong, China.
| | - Ouafae Akkouh
- Department of Biology and Medical Laboratory Research, Leiden University of Applied Science, Zernikedreef 11, Leiden 2333 CK, The Netherlands.
| | - Tzi Bun Ng
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong, China.
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Jang IT, Hyun SH, Shin JW, Lee YH, Ji JH, Lee JS. Characterization of an Anti-gout Xanthine Oxidase Inhibitor from Pleurotus ostreatus. MYCOBIOLOGY 2014; 42:296-300. [PMID: 25346610 PMCID: PMC4206799 DOI: 10.5941/myco.2014.42.3.296] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2014] [Revised: 07/16/2014] [Accepted: 07/31/2014] [Indexed: 05/28/2023]
Abstract
We selected Pleurotus ostreatus from among several edible mushrooms because it has high anti-gout xanthine oxidase (XOD) inhibitory activity. The maximal amount of XOD inhibitor was extracted when the Pleurotus ostreatus fruiting body was treated with distilled water at 40℃ for 48 hr. The XOD inhibitor thus obtained was purified by Sephadex G-50 gel permeation chromatography, ultrafiltration, C18 solid phase extraction chromatography and reverse-phase high-performance liquid chromatography with 3% of solid yield, and its XOD inhibitory activity was 0.9 mg/mL of IC50. The purified XOD inhibitor was a tripeptide with the amino acid sequence phenylalanine-cysteine-histidine and a molecular weight of 441.3 Da. The XOD inhibitor-containing ultrafiltrates from Pleurotus ostreatus demonstrated dose-dependent anti-gout effects in a Sprague-Dawley rat model of potassium oxonate-induced gout, as shown by decreased serum urated levels at doses of 500 and 1,000 mg/kg, although the effect was not as great as that achieved with the commercial anti-gout agent, allopurinol when administered at a dose of 50 mg/kg.
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Affiliation(s)
- In-Taek Jang
- Department of Biomedicinal Science and Biotechnology, Paichai University, Daejeon 302-735, Korea
| | - Se-Hee Hyun
- Department of Biomedicinal Science and Biotechnology, Paichai University, Daejeon 302-735, Korea
| | - Ja-Won Shin
- Department of Biomedicinal Science and Biotechnology, Paichai University, Daejeon 302-735, Korea
| | - Yun-Hae Lee
- Mushroom Research Station, Gyeonggi-do Agricultural Research and Extension Services, Gwangju 464-873, Korea
| | - Jeong-Hyun Ji
- Mushroom Research Station, Gyeonggi-do Agricultural Research and Extension Services, Gwangju 464-873, Korea
| | - Jong-Soo Lee
- Department of Biomedicinal Science and Biotechnology, Paichai University, Daejeon 302-735, Korea
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Kong F, Li FE, He Z, Jiang Y, Hao R, Sun X, Tong H. Anti-tumor and macrophage activation induced by alkali-extracted polysaccharide from Pleurotus ostreatus. Int J Biol Macromol 2014; 69:561-6. [DOI: 10.1016/j.ijbiomac.2014.05.045] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Revised: 04/18/2014] [Accepted: 05/12/2014] [Indexed: 11/30/2022]
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A novel hemagglutinin with antiproliferative activity against tumor cells from the hallucinogenic mushroom Boletus speciosus. BIOMED RESEARCH INTERNATIONAL 2014; 2014:340467. [PMID: 24977148 PMCID: PMC4058106 DOI: 10.1155/2014/340467] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Revised: 03/30/2014] [Accepted: 04/29/2014] [Indexed: 11/26/2022]
Abstract
Little was known about bioactive compounds from the hallucinogenic mushroom Boletus speciosus. In the present study, a hemagglutinin (BSH, B. speciosus hemagglutinin) was isolated from its fruiting bodies and enzymatic properties were also tested. The chromatographic procedure utilized comprised anion exchange chromatography on Q-Sepharose, cation exchange chromatography on CM-Cellulose, cation exchange chromatography on SP-Sepharose, and gel filtration by FPLC on Superdex 75. The hemagglutinin was a homodimer which was estimated to be approximately 31 kDa in size. The activity of BSH was stable up to 60°C, while there was a precipitous drop in activity when the temperature was elevated to 70°C. BSH retained 25% hemagglutinating activity when exposed to 100 mM NaOH and 25 mM HCl. The activity was potently inhibited by 1.25 mM Hg2+ and slightly inhibited by Fe2+, Ca2+, and Pb2+. None of the sugars tested showed inhibition towards BSH. Its hemagglutinating activity towards human erythrocytes type A, type B, and type AB was higher than type O. The hemagglutinin showed antiproliferative activity towards hepatoma Hep G2 cells and mouse lymphocytic leukemia cells (L1210) in vitro, with IC50 of 4.7 μM and 7.0 μM, respectively. It also exhibited HIV-1 reverse transcriptase inhibitory activity with an IC50 of 7.1 μM.
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A lectin from Bothrops leucurus snake venom raises cytosolic calcium levels and promotes B16-F10 melanoma necrotic cell death via mitochondrial permeability transition. Toxicon 2014; 82:97-103. [PMID: 24593964 DOI: 10.1016/j.toxicon.2014.02.018] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Revised: 02/18/2014] [Accepted: 02/20/2014] [Indexed: 11/22/2022]
Abstract
BlL, a galactose-binding C-type lectin purified from Bothrops leucurus snake venom, exhibits anticancer activity. The current study was designed to elucidate the cellular mechanisms by which BlL induces melanoma cell death. The viabilities of B16-F10 melanoma cells and HaCaT keratinocytes treated with BlL were evaluated. Necrotic and apoptotic cell death, cytosolic Ca(2+) levels, mitochondrial Ca(2+) transport and superoxide levels were assessed in B16-F10 melanoma cells exposed to BlL. We found that treatment with BlL caused dose-dependent necrotic cell death in B16-F10 melanoma cells. Conversely, the viability of non-tumorigenic HaCaT cells was not affected by similar doses of BlL. BlL-induced B16-F10 necrosis was preceded by a significant (2-fold) increase in cytosolic calcium concentrations and a significant (3-fold) increase in mitochondrial superoxide generation. It is likely that BlL treatment triggers B16-F10 cell death via mitochondrial permeability transition (MPT) pore opening because the pharmacological MPT inhibitors bongkrekic acid and Debio 025 greatly attenuated BlL-induced cell death. Experiments evaluating mitochondrial Ca(2+) transport in permeabilized B16-F10 cells strongly supported the hypothesis that BlL rapidly stimulates cyclosporine A-sensitive Ca(2+)-induced MPT pore opening. We therefore conclude that BlL causes selective B16-F10 melanoma cell death via dysregulation of cellular Ca(2+) homeostasis and Ca(2+)-induced opening of MPT pore.
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Liu Q, Zhu M, Du F, Wang H, Ng TB. Isolation and Characterization of a Novel Mannose- and Fructose-Binding Lectin from the Edible Wild Mushroom Hygrophorus russula (Fr.) Quél. FOOD SCIENCE AND TECHNOLOGY RESEARCH 2014. [DOI: 10.3136/fstr.20.1101] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Qin Liu
- State Key Laboratory for Agrobiotechnology and Department of Microbiology, China Agricultural University
| | - Mengjuan Zhu
- State Key Laboratory for Agrobiotechnology and Department of Microbiology, China Agricultural University
| | - Fang Du
- State Key Laboratory for Agrobiotechnology and Department of Microbiology, China Agricultural University
| | - Hexiang Wang
- State Key Laboratory for Agrobiotechnology and Department of Microbiology, China Agricultural University
| | - Tzi Bun Ng
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong
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Usami A, Motooka R, Nakahashi H, Okuno Y, Miyazawa M. Characteristic Odorants from Bailingu Oyster Mushroom (Pleurotus eryngii var. tuoliensis) and Summer Oyster Mushroom (Pleurotus cystidiosus). J Oleo Sci 2014; 63:731-9. [DOI: 10.5650/jos.ess14043] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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49
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Ahmad R, Muniandy S, Abdullah Shukri NI, Usyida Alias SM, Hamid AA, Wan Yusoff WM, Senafi S, Daud F. Antioxidant Properties and Glucan Compositions of Various Crude Extract from <i>Lentinus squarrosulus</i> Mycelial Culture. ACTA ACUST UNITED AC 2014. [DOI: 10.4236/abb.2014.510094] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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50
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Lectins in human pathogenic fungi. Rev Iberoam Micol 2014; 31:72-5. [DOI: 10.1016/j.riam.2013.09.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Accepted: 09/27/2013] [Indexed: 11/21/2022] Open
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