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Reid T, Fore F, Chidzwondo F, Kashangura C, Stray-Pedersen B, Mduluza T. Screening of mushrooms from the woodlands of Zimbabwe: Occurrence of lectins and partial purification of a mucin specific lectin from Boletus edulis. PLoS One 2022; 17:e0265494. [PMID: 35421104 PMCID: PMC9009683 DOI: 10.1371/journal.pone.0265494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 03/02/2022] [Indexed: 11/18/2022] Open
Abstract
Mushrooms are known to possess a diversity of bioactive compounds that include lectins, which are proteins or glycoproteins that bind specifically to cell surface carbohydrates, culminating in cell agglutination. The present study describes the screening of lectin activity from ten local mushrooms, namely, Amanita zambiana, Boletus edulis, Cantharellus heinemannianus, Cantharellus miomboensis, Cantharellus symoensii, Lactarius kabansus, Amanita sp., Coprinus sp., Ganoderma lucidum and Trametes strumosa. The lectin content was detected by the haemagglutination activity of mushrooms against sheep and goat erythrocytes. Among the different mushrooms screened Amanita sp., Boletus edulis and Lactarius kabansus showed high lectin activity (39, 617 and 77 HAU/mg mushroom, respectively). Boletus edulis was used for the haemagglutination inhibition assay. A total of twenty sugars and sugar derivatives, namely, α-lactose, D-glucose, D-mannose, D-raffinose, N-acetyl glucosamine, maltose, melibiose, D-ribose, porcine mucin, D-cellobiose, D-arabinose, α-methyl-D-glucoside, methyl-α-D-mannopyranoside, D-trehalose, L-arabinose, L-sorbose, L-lyxose, β-lactose, DL-xylose, and D-galactose, were used for the haemagglutination inhibition assay. Of the various carbohydrates tested, only porcine mucin was found to be the most potent inhibitor of Boletus lectin. The lectin from Boletus mushroom was partially purified using ammonium sulphate precipitation. The highest lectin activity was observed in the 30%-60% fraction. This study revealed for the first time the occurrence of lectins in the local Zimbabwean mushrooms studied as well as isolation of a novel mucin-specific lectin. The information obtained can be used for further investigation of cell surface sugars, purification and characterisation of glycoproteins and their contribution towards the medicinal properties of local mushrooms.
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Affiliation(s)
- Tsungai Reid
- Biochemistry Department, University of Zimbabwe, Harare, Zimbabwe
- * E-mail:
| | - Faith Fore
- Biochemistry Department, University of Zimbabwe, Harare, Zimbabwe
| | | | | | - Babill Stray-Pedersen
- Institute of Clinical Medicine, University in Oslo, Oslo University Hospital, Oslo, Norway
| | - Takafira Mduluza
- Biochemistry Department, University of Zimbabwe, Harare, Zimbabwe
- School of Laboratory Medicine and Medical Sciences, University of KwaZulu Natal, Durban, South Africa
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Perišić Nanut M, Žurga S, Konjar Š, Prunk M, Kos J, Sabotič J. The fungal Clitocybe nebularis lectin binds distinct cell surface glycoprotein receptors to induce cell death selectively in Jurkat cells. FASEB J 2022; 36:e22215. [PMID: 35224765 DOI: 10.1096/fj.202101056rr] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 01/28/2022] [Accepted: 02/08/2022] [Indexed: 01/01/2023]
Abstract
Clitocybe nebularis lectin (CNL) is a GalNAcβ1-4GlcNAc-binding lectin that exhibits an antiproliferative effect exclusively on the Jurkat leukemic T cell line by provoking homotypic aggregation and dose-dependent cell death. Cell death of Jurkat cells exhibited typical features of early apoptosis, but lacked the activation of initiating and executing caspases. None of the features of CNL-induced cell death were effectively blocked with the pan-caspase inhibitor or different cysteine peptidase inhibitors. Furthermore, CNL binding induced Jurkat cells to release the endogenous damage-associated molecular pattern molecule high-mobility group box 1 (HMGB1). A plant lectin with similar glycan-binding specificity, Wisteria floribunda agglutinin (WFA) showed less selective toxicity and induced cell death in Jurkat, Tall-104, and Hut-87 cell lines. HMGB1 release was also detected when Jurkat cells were treated with WFA. We identified the CD45 and CD43 cell surface glycoproteins on Jurkat cells as the main targets for CNL binding. However, the blockade of CD45 phosphatase activity failed to block either CNL-induced homotypic agglutination or cell death. Overall, our results indicate that CNL triggers atypical cell death selectively on Jurkat cells, suggesting the potential applicability of CNL in novel strategies for treating and/or detecting acute T cell leukemia.
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Affiliation(s)
| | - Simon Žurga
- Department of Biotechnology, Jožef Stefan Institute, Ljubljana, Slovenia
| | - Špela Konjar
- Department of Biotechnology, Jožef Stefan Institute, Ljubljana, Slovenia
| | - Mateja Prunk
- Department of Biotechnology, Jožef Stefan Institute, Ljubljana, Slovenia
| | - Janko Kos
- Faculty of Pharmacy, University of Ljubljana, Ljubljana, Slovenia
| | - Jerica Sabotič
- Department of Biotechnology, Jožef Stefan Institute, Ljubljana, Slovenia
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Narrative Review: Bioactive Potential of Various Mushrooms as the Treasure of Versatile Therapeutic Natural Product. J Fungi (Basel) 2021; 7:jof7090728. [PMID: 34575766 PMCID: PMC8466349 DOI: 10.3390/jof7090728] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/02/2021] [Accepted: 09/02/2021] [Indexed: 12/11/2022] Open
Abstract
Mushrooms have remained an eternal part of traditional cuisines due to their beneficial health potential and have long been recognized as a folk medicine for their broad spectrum of nutraceuticals, as well as therapeutic and prophylactic uses. Nowadays, they have been extensively investigated to explain the chemical nature and mechanisms of action of their biomedicine and nutraceuticals capacity. Mushrooms belong to the astounding dominion of Fungi and are known as a macrofungus. Significant health benefits of mushrooms, including antiviral, antibacterial, anti-parasitic, antifungal, wound healing, anticancer, immunomodulating, antioxidant, radical scavenging, detoxification, hepatoprotective cardiovascular, anti-hypercholesterolemia, and anti-diabetic effects, etc., have been reported around the globe and have attracted significant interests of its further exploration in commercial sectors. They can function as functional foods, help in the treatment and therapeutic interventions of sub-optimal health states, and prevent some consequences of life-threatening diseases. Mushrooms mainly contained low and high molecular weight polysaccharides, fatty acids, lectins, and glucans responsible for their therapeutic action. Due to the large varieties of mushrooms present, it becomes challenging to identify chemical components present in them and their beneficial action. This article highlights such therapeutic activities with their active ingredients for mushrooms.
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Ganatra MB, Potapov V, Vainauskas S, Francis AZ, McClung CM, Ruse CI, Ong JL, Taron CH. A bi-specific lectin from the mushroom Boletopsis grisea and its application in glycoanalytical workflows. Sci Rep 2021; 11:160. [PMID: 33420304 PMCID: PMC7794217 DOI: 10.1038/s41598-020-80488-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 12/21/2020] [Indexed: 11/09/2022] Open
Abstract
The BLL lectin from the edible Japanese "Kurokawa" mushroom (Boletopsis leucomelaena) was previously reported to bind to N-glycans harboring terminal N-acetylglucosamine (GlcNAc) and to induce apoptosis in a leukemia cell line. However, its gene has not been reported. In this study, we used a transcriptomics-based workflow to identify a full-length transcript of a BLL functional ortholog (termed BGL) from Boletopsis grisea, a close North American relative of B. leucomelaena. The deduced amino acid sequence of BGL was an obvious member of fungal fruit body lectin family (Pfam PF07367), a highly conserved group of mushroom lectins with a preference for binding O-glycans harboring the Thomsen-Friedenreich antigen (TF-antigen; Galβ1,3GalNAc-α-) and having two ligand binding sites. Functional characterization of recombinant BGL using glycan microarray analysis and surface plasmon resonance confirmed its ability to bind both the TF-antigen and β-GlcNAc-terminated N-glycans. Structure-guided mutagenesis of BGL's two ligand binding clefts showed that one site is responsible for binding TF-antigen structures associated with O-glycans, whereas the second site specifically recognizes N-glycans with terminal β-GlcNAc. Additionally, the two sites show no evidence of allosteric communication. Finally, mutant BGL proteins having single functional bindings site were used to enrich GlcNAc-capped N-glycans or mucin type O-glycopeptides from complex samples in glycomics and glycoproteomics analytical workflows.
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Affiliation(s)
- Mehul B Ganatra
- New England Biolabs, Inc, 240 County Road, Ipswich, MA, 01938, USA
| | - Vladimir Potapov
- New England Biolabs, Inc, 240 County Road, Ipswich, MA, 01938, USA
| | | | | | | | - Cristian I Ruse
- New England Biolabs, Inc, 240 County Road, Ipswich, MA, 01938, USA
| | - Jennifer L Ong
- New England Biolabs, Inc, 240 County Road, Ipswich, MA, 01938, USA
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Zhao S, Gao Q, Rong C, Wang S, Zhao Z, Liu Y, Xu J. Immunomodulatory Effects of Edible and Medicinal Mushrooms and Their Bioactive Immunoregulatory Products. J Fungi (Basel) 2020; 6:E269. [PMID: 33171663 PMCID: PMC7712035 DOI: 10.3390/jof6040269] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 10/31/2020] [Accepted: 11/02/2020] [Indexed: 12/19/2022] Open
Abstract
Mushrooms have been valued as food and health supplements by humans for centuries. They are rich in dietary fiber, essential amino acids, minerals, and many bioactive compounds, especially those related to human immune system functions. Mushrooms contain diverse immunoregulatory compounds such as terpenes and terpenoids, lectins, fungal immunomodulatory proteins (FIPs) and polysaccharides. The distributions of these compounds differ among mushroom species and their potent immune modulation activities vary depending on their core structures and fraction composition chemical modifications. Here we review the current status of clinical studies on immunomodulatory activities of mushrooms and mushroom products. The potential mechanisms for their activities both in vitro and in vivo were summarized. We describe the approaches that have been used in the development and application of bioactive compounds extracted from mushrooms. These developments have led to the commercialization of a large number of mushroom products. Finally, we discuss the problems in pharmacological applications of mushrooms and mushroom products and highlight a few areas that should be improved before immunomodulatory compounds from mushrooms can be widely used as therapeutic agents.
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Affiliation(s)
- Shuang Zhao
- Institute of Plant and Environment Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China; (S.Z.); (Q.G.); (C.R.); (S.W.); (Z.Z.); (Y.L.)
| | - Qi Gao
- Institute of Plant and Environment Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China; (S.Z.); (Q.G.); (C.R.); (S.W.); (Z.Z.); (Y.L.)
| | - Chengbo Rong
- Institute of Plant and Environment Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China; (S.Z.); (Q.G.); (C.R.); (S.W.); (Z.Z.); (Y.L.)
| | - Shouxian Wang
- Institute of Plant and Environment Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China; (S.Z.); (Q.G.); (C.R.); (S.W.); (Z.Z.); (Y.L.)
| | - Zhekun Zhao
- Institute of Plant and Environment Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China; (S.Z.); (Q.G.); (C.R.); (S.W.); (Z.Z.); (Y.L.)
- College of Life Sciences and Food Engineering, Hebei University of Engineering, Handan 056038, China
| | - Yu Liu
- Institute of Plant and Environment Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China; (S.Z.); (Q.G.); (C.R.); (S.W.); (Z.Z.); (Y.L.)
| | - Jianping Xu
- Department of Biology, McMaster University, Hamilton, ON L8S 4K1, Canada
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Singh RS, Walia AK, Kennedy JF. Mushroom lectins in biomedical research and development. Int J Biol Macromol 2020; 151:1340-1350. [DOI: 10.1016/j.ijbiomac.2019.10.180] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 10/19/2019] [Accepted: 10/21/2019] [Indexed: 12/13/2022]
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Concanavalin A Toxicity Towards Potato Psyllid and Apoptosis Induction in Midgut Cells. INSECTS 2020; 11:insects11040243. [PMID: 32295261 PMCID: PMC7240484 DOI: 10.3390/insects11040243] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 04/08/2020] [Accepted: 04/09/2020] [Indexed: 01/03/2023]
Abstract
Concanavalin A (ConA), a legume lectin, has been drawing increasing attention in recent years concerning its toxicity against insects and its potential application in pest management. In an attempt to evaluate the effect of ConA on potato psyllid (Bactericera cockerelli), an economically important pest of solanaceous crops, the effect of ConA on potato psyllid survival, psyllid gut nuclear morphology, and expression of psyllid caspase genes were evaluated. Our results determined that artificial diet-feeding assays using ConA had deleterious effects on potato psyllids, resulting in significant psyllid mortality following ingestion. We also found that an apoptotic response was induced by ConA in psyllid midgut cells, which was demonstrated by the DNA fragmentation and abnormal nuclear architecture in the midgut cells. Following ConA ingestion, there was also upregulation of caspase genes in the psyllid midguts. Therefore, a key mechanism behind ConA toxicity towards potato psyllid probably involves the induction of apoptosis in midgut cells. This study could provide a better understanding of the mechanisms underlying ConA toxicity in insects and be a stepping stone towards the development of new psyllid control strategies based on plant lectins.
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Hasan I, Asaduzzaman AKM, Swarna RR, Fujii Y, Ozeki Y, Uddin MB, Kabir SR. MytiLec-1 Shows Glycan-Dependent Toxicity against Brine Shrimp Artemia and Induces Apoptotic Death of Ehrlich Ascites Carcinoma Cells In Vivo. Mar Drugs 2019; 17:md17090502. [PMID: 31466257 PMCID: PMC6780975 DOI: 10.3390/md17090502] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 08/21/2019] [Accepted: 08/23/2019] [Indexed: 12/19/2022] Open
Abstract
MytiLec-1, a 17 kDa lectin with β-trefoil folding that was isolated from the Mediterranean mussel (Mytilus galloprovincialis) bound to the disaccharide melibiose, Galα(1,6) Glc, and the trisaccharide globotriose, Galα(1,4) Galβ(1,4) Glc. Toxicity of the lectin was found to be low with an LC50 value of 384.53 μg/mL, determined using the Artemia nauplii lethality assay. A fluorescence assay was carried out to evaluate the glycan-dependent binding of MytiLec-1 to Artemia nauplii. The lectin strongly agglutinated Ehrlich ascites carcinoma (EAC) cells cultured in vivo in Swiss albino mice. When injected intraperitoneally to the mice at doses of 1.0 mg/kg/day and 2.0 mg/kg/day for five consecutive days, MytiLec-1 inhibited 27.62% and 48.57% of cancer cell growth, respectively. Antiproliferative activity of the lectin against U937 and HeLa cells was studied by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay in vitro in RPMI-1640 medium. MytiLec-1 internalized into U937 cells and 50 μg/mL of the lectin inhibited their growth of to 62.70% whereas 53.59% cell growth inhibition was observed against EAC cells when incubated for 24 h. Cell morphological study and expression of apoptosis-related genes (p53, Bax, Bcl-X, and NF-κB) showed that the lectin possibly triggered apoptosis in these cells.
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Affiliation(s)
- Imtiaj Hasan
- Department of Biochemistry and Molecular Biology, Faculty of Science, University of Rajshahi, Rajshahi-6205, Bangladesh.
| | - A K M Asaduzzaman
- Department of Biochemistry and Molecular Biology, Faculty of Science, University of Rajshahi, Rajshahi-6205, Bangladesh
| | - Rubaiya Rafique Swarna
- Department of Biochemistry and Molecular Biology, Faculty of Science, University of Rajshahi, Rajshahi-6205, Bangladesh
| | - Yuki Fujii
- Department of Pharmacy, Faculty of Pharmaceutical Science, Nagasaki International University, 2825-7 Huis Ten Bosch, Sasebo, Nagasaki 859-3298, Japan
| | - Yasuhiro Ozeki
- Department of Life and Environmental System Science, School of Sciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan
| | - Md Belal Uddin
- Department of Biochemistry and Molecular Biology, Faculty of Science, University of Rajshahi, Rajshahi-6205, Bangladesh
| | - Syed Rashel Kabir
- Department of Biochemistry and Molecular Biology, Faculty of Science, University of Rajshahi, Rajshahi-6205, Bangladesh.
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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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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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Program Overview * Conference Program * Conference Posters * Conference Abstracts. Glycobiology 2014. [DOI: 10.1093/glycob/cwu087] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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Nosaka S, Miyazawa M. Characterization of Volatile Components and Odor-active Compounds in the Oil of Edible Mushroom Boletopsis leucomelas. J Oleo Sci 2014; 63:577-83. [DOI: 10.5650/jos.ess13215] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Abstract
Fungi are members of a large group of eukaryotic organisms that include yeasts and molds, as well as the most familiar member, mushrooms. Fungal lectins with unique specificity and structures have been discovered. In general, fungal lectins are classified into specific families based on their amino acid sequences and three-dimensional structures. In this chapter, we provide an overview of the approximately 80 types of mushroom and fungal lectins that have been isolated and studied to date. In particular, we have focused on ten fungal lectins (Agaricus bisporus, Agrocybe cylindracea, Aleuria aurantia, Aspergillus oryzae, Clitocybe nebularis, Marasmius oreades, Psathyrella velutina, Rhizopus stolonifer, Pholiota squarrosa, Polyporus squamosus), many of which are commercially available and their properties, sugar-binding specificities, structural grouping into families, and applications for biological research being described. The sialic acid-specific lectins (Agrocybe cylindracea and Polyporus squamosus) and fucose-specific lectins (Aleuria aurantia, Aspergillus oryzae, Rhizopus stolonifer, and Pholiota squarrosa) each showed potential for use in identifying sialic acid glycoconjugates and fucose glycoconjugates. Although not much is currently known about fungal lectins compared to animal and plant lectins, the knowledge accumulated thus far shows great promise for several applications in the fields of taxonomy, biomedicine, and molecular and cellular biology.
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Affiliation(s)
- Yuka Kobayashi
- J-Oil Mills Inc., 11, Kagetoricho, Totsuka-ku, Yokohama, Kanagawa, 245-0064, Japan,
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15
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da Silva Nascimento Santos M, Leite EL. Polysaccharides from the Fungus Scleroderma/Fungi. POLYSACCHARIDES 2014. [DOI: 10.1007/978-3-319-03751-6_19-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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16
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Shimosato T, Kanoh J, Otani H. Oral administration of a fruiting body extract ofBoletopsis leucomelasenhances intestinal IgA production in LPS-challenged mice. FOOD AGR IMMUNOL 2013. [DOI: 10.1080/09540105.2013.847064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Chen Y, Jiang S, Jin Y, Yin Y, Yu G, Lan X, Cui M, Liang Y, Wong BHC, Guo L, Sun H. Purification and characterization of an antitumor protein with deoxyribonuclease activity from edible mushroom Agrocybe aegerita. Mol Nutr Food Res 2012; 56:1729-38. [DOI: 10.1002/mnfr.201200316] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2012] [Revised: 08/01/2012] [Accepted: 08/15/2012] [Indexed: 11/12/2022]
Affiliation(s)
- Yijie Chen
- College of Life Sciences; Wuhan University; Wuhan; Hubei Province; P. R. China
| | - Shuai Jiang
- College of Life Sciences; Wuhan University; Wuhan; Hubei Province; P. R. China
| | - Yanxia Jin
- College of Life Sciences; Wuhan University; Wuhan; Hubei Province; P. R. China
| | - Yalin Yin
- College of Life Sciences; Wuhan University; Wuhan; Hubei Province; P. R. China
| | - Guojun Yu
- College of Life Sciences; Wuhan University; Wuhan; Hubei Province; P. R. China
| | - Xianqing Lan
- College of Life Sciences; Wuhan University; Wuhan; Hubei Province; P. R. China
| | - Mingyao Cui
- College of Life Sciences; Wuhan University; Wuhan; Hubei Province; P. R. China
| | - Yi Liang
- Department of Clinical Immunology; Guangdong Medical College; Dongguan; P. R. China
| | | | - Lin Guo
- College of Life Sciences; Wuhan University; Wuhan; Hubei Province; P. R. China
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Svajger U, Pohleven J, Kos J, Strukelj B, Jeras M. CNL, a ricin B-like lectin from mushroom Clitocybe nebularis, induces maturation and activation of dendritic cells via the toll-like receptor 4 pathway. Immunology 2011; 134:409-18. [PMID: 22044067 PMCID: PMC3230795 DOI: 10.1111/j.1365-2567.2011.03500.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2011] [Revised: 07/19/2011] [Accepted: 08/15/2011] [Indexed: 01/01/2023] Open
Abstract
A novel lectin, isolated from the basidiomycete mushroom Clitocybe nebularis and termed C. nebularis lectin (CNL), exhibits an immunostimulatory effect on the most potent antigen-presenting cells, the dendritic cells (DCs). Treatment of human monocyte-derived DCs with CNL in doses from 1 to 10 μg/ml resulted in a dose-dependent induction of overall DC maturation characteristics. Exposure of DCs to CNL for 48 hr resulted in extensive up-regulation of co-stimulatory molecules CD80 and CD86, as well as of the maturation marker CD83 and HLA-DR molecules. Such CNL-matured DCs (CNL-DCs) were capable of inducing a T helper type 1-polarized response in naive CD4+ CD45RA+ T cells in 5-day allogeneic co-cultures. The allostimulatory potential of CNL-DCs was significantly increased relative to untreated controls, as was their capacity to produce several pro-inflammatory cytokines such as interleukin-6, interleukin-8 and tumour necrosis factor-α. By using a specific Toll-like receptor 4 (TLR4) signalling inhibitor, CLI-095, as well as Myd88 inhibitory peptide, we have shown that DC activation by CNL is completely dependent on the TLR4 activation pathway. Furthermore, activation of TLR4 by CNL was confirmed via TLR4 reporter assay. Measurement of p65 nuclear factor-κB and p38 mitogen-activated protein kinase (MAPK) phosphorylation levels following CNL stimulation of DCs revealed primarily an increase in nuclear factor-κB activity, with less effect on the induction of p38 MAPK signalling than of lipopolysaccharide-matured DCs. The CNL had the ability to activate human DCs in such a way as to subsequently direct T helper type 1 T-cell responses. Our results encourage the use of mushroom-derived lectins for use in therapeutic strategies with aims such as to strengthen anti-tumour immune responses.
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Affiliation(s)
- Urban Svajger
- Blood Transfusion Centre of Slovenia, Šlajmerjeva 6, Ljubljana, Slovenia.
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19
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Liang Y, Chen Y, Liu H, Luan R, Che T, Jiang S, Xie D, Sun H. The tumor rejection effect of protein components from medicinal fungus. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.bionut.2011.06.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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20
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Singh RS, Bhari R, Kaur HP. Mushroom lectins: current status and future perspectives. Crit Rev Biotechnol 2010; 30:99-126. [PMID: 20105049 DOI: 10.3109/07388550903365048] [Citation(s) in RCA: 95] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Lectins are nonimmune proteins or glycoproteins that bind specifically to cell surface carbohydrates, culminating in cell agglutination. These are known to play key roles in host defense system and also in metastasis. Many new sources have been explored for the occurrence of lectins during the last few years. Numerous novel lectins with unique specificities and exploitable properties have been discovered. Mushrooms have attracted a number of researchers in food and pharmaceuticals. Many species have long been used in traditional Chinese medicines or functional foods in Japan and other Asian countries. A number of bioactive constituents have been isolated from mushrooms including polysaccharides, polysaccharopeptides, polysaccharide-protein complexes, proteases, ribonucleases, ribosome inactivating proteins, antifungal proteins, immunomodulatory proteins, enzymes, lectins, etc. Mushroom lectins are endowed with mitogenic, antiproliferative, antitumor, antiviral, and immune stimulating potential. In this review, an attempt has been made to collate the information on mushroom lectins, their blood group and sugar specificities, with an emphasis on their biomedical potential and future perspectives.
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Affiliation(s)
- Ram Sarup Singh
- Carbohydrate and Protein Biotechnology Laboratory, Department of Biotechnology, Punjabi University, Patiala, Punjab, India.
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21
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Liang Y, Feng L, Tong X, Wang K, Li DF, Lin JC, Tang ZJ, Liu HH, Jiang S, Guo L, Wang DC, Sun H. Importance of nuclear localization for the apoptosis-induced activity of a fungal galectin AAL (Agrocybe aegerita lectin). Biochem Biophys Res Commun 2009; 386:437-42. [PMID: 19527691 DOI: 10.1016/j.bbrc.2009.06.054] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2009] [Accepted: 06/05/2009] [Indexed: 10/20/2022]
Abstract
Agrocybe aegerita lectin (AAL) was identified previously in our group as a novel galectin from medicinal fungi Agrocybe aegerita, and has been shown to effectively induce cancer cell cycle arrest and apoptosis in vitro and tumor regression in vivo. Here, AAL was observed to translocate into the HeLa cell nucleus and induce cell apoptosis when it was predominantly in the nucleus. The N-terminus and C-terminus of AAL were required for nuclear localization. Site mutated proteins were generated based on AAL structure. Dimer interface mutant I25G, carbohydrate recognition domain (CRD) mutant R63H, and loop region mutant L33A could not enter the nucleus and lost the ability to induce apoptosis. CRD mutant H59Q and loop region mutant I144G maintained nuclear localization activity, and H59Q retained residual bioability but I144G had no activity, indicating that nuclear localization is important but not sufficient for AAL to become apoptotically active. Our findings provide a novel antitumor mechanism of fungal galectin.
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Affiliation(s)
- Yi Liang
- State Key Laboratory of Virology, College of Life Sciences, Wuhan University, Wuhan 430072, People's Republic of China
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22
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Yan Q, Li Y, Jiang Z, Sun Y, Zhu L, Ding Z. Antiproliferation and apoptosis of human tumor cell lines by a lectin (AMML) of Astragalus mongholicus. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2009; 16:586-593. [PMID: 19403285 DOI: 10.1016/j.phymed.2008.12.024] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2008] [Accepted: 12/19/2008] [Indexed: 05/27/2023]
Abstract
A lectin (AMML) from the roots of Astragalus mongholicus was extracted and purified by affinity chromatographic technique. Human cervical carcinoma cell line (HeLa), human osteoblast-like cell line (MG63) and human leukemia cell line (K562) were used to check the effects of AMML on cell proliferation, apoptosis and cell cycle. Maximum growth inhibition (92%) was observed with HeLa cells, followed by K562 cells (84%) and MG63 (48%) cells. Morphological observation showed that AMML-treated HeLa cells displayed outstanding apoptosis characteristics, such as nuclear fragmentation and appearance of membrane-enclosed apoptotic bodies. The apoptosis of HeLa cells was confirmed by flow cytometry using Annexin V/FITC and propidium iodide (PI) staining technique. For the first time we also report a significant cell cycle arrest at S phase of HeLa cells by AMML. Therefore, the present investigation may lead to the possible therapeutic use of Astragalus mongholicus lectin.
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Affiliation(s)
- Qiaojuan Yan
- Bioresource Utilization Laboratory, College of Engineering, China Agricultural University, Beijing 100083, China
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23
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Structural Basis for the Tumor Cell Apoptosis-Inducing Activity of an Antitumor Lectin from the Edible Mushroom Agrocybe aegerita. J Mol Biol 2009; 387:694-705. [DOI: 10.1016/j.jmb.2009.02.002] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2008] [Revised: 02/02/2009] [Accepted: 02/03/2009] [Indexed: 11/18/2022]
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24
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Inagaki S, Morimura S, Gondo K, Tang Y, Akutagawa H, Kida K. Isolation of tryptophol as an apoptosis-inducing component of vinegar produced from boiled extract of black soybean in human monoblastic leukemia U937 cells. Biosci Biotechnol Biochem 2007; 71:371-9. [PMID: 17284845 DOI: 10.1271/bbb.60336] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We isolated a novel apoptosis-inducing component, tryptophol, from vinegar produced from boiled extract of black soybean (black soybean vinegar). Compound-6 purified from an ethyl acetate extract of black soybean vinegar using high performance liquid chromatography (HPLC) induced fragmentation of DNA and the development of apoptotic bodies (characteristic physiological features of apoptosis) in U937 cells. By analysis of chemical structure, this active compound was identified as tryptophol. Tryptophol induced apoptosis involving caspase-8 and -3 activation, followed by cleavage of poly (ADP-ribose) polymerase (PARP), as shown by measurement of enzyme activity and immunoblot analysis. The cell viability of normal lymphocytes separated from human blood was less affected by tryptophol, and fragmentation of DNA was not induced in normal lymphocytes. These results indicate that tryptophol isolated from black soybean vinegar inhibited the proliferation of U937 cells by inducing apoptosis via a pathway involving caspase-8 followed by caspase-3, without affecting normal lymphocytes.
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Affiliation(s)
- Shyuichiro Inagaki
- Graduate School of Science and Technology, Kumamoto University, Kumamoto, Japan
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25
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Koyama Y, Suzuki T, Odani S, Nakamura S, Kominami J, Hirabayashi J, Isemura M. Carbohydrate specificity of lectins from Boletopsis leucomelas and Aralia cordate. Biosci Biotechnol Biochem 2006; 70:542-5. [PMID: 16495678 DOI: 10.1271/bbb.70.542] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The carbohydrate specificity of three novel lectins, Boletopsis leucomelas lectin (BLL), Aralia cordate lectin (ACL), and Wasabia japonica lectin (WJL), was examined by frontal affinity chromatography using a panel of fluorescently labeled 47 oligosaccharides. The results indicate that BLL recognizes an agalacto structure of the biantennary chain and its bisecting structure. ACL showed strong affinity for triantennary oligosaccharides, but no affinity for tetraantennary structure. WJL showed no appreciable affinity for any of the 47 glycans examined. These lectins with a unique affinity specificity might be useful for examining alterations in the glycan structures of the glycoconjugates in association with development and various diseases.
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Affiliation(s)
- Yu Koyama
- Laboratory of Cellular Biochemistry, Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, Japan
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26
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Nakamura-Tsuruta S, Kominami J, Kamei M, Koyama Y, Suzuki T, Isemura M, Hirabayashi J. Comparative analysis by frontal affinity chromatography of oligosaccharide specificity of GlcNAc-binding lectins, Griffonia simplicifolia lectin-II (GSL-II) and Boletopsis leucomelas lectin (BLL). J Biochem 2006; 140:285-91. [PMID: 16835257 DOI: 10.1093/jb/mvj148] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Lectin-based structural glycomics requires a search for useful lectins and their biochemical characterization to profile complex features of glycans. In this paper, two GlcNAc-binding lectins are reported with their detailed oligosaccharide specificity. One is a classic plant lectin, Griffonia simplicifolia lectin-II (GSL-II), and the other is a novel fungal lectin, Boletopsis leucomelas lectin (BLL). Their sugar-binding specificity was analyzed by frontal affinity chromatography using 146 glycans (125 pyridylaminated and 21 p-nitrophenyl saccharides). As a result, it was found that both GSL-II and BLL showed significant affinity toward complex-type N-glycans, which are either partially or completely agalactosylated. However, their branch-specific features differed significantly: GSL-II strongly bound to agalacto-type, tri- or tetra-antennary N-glycans with its primary recognition of a GlcNAc residue transferred by GlcNAc-transferase IV, while BLL preferred N-glycans with fewer branches. In fact, the presence of a GlcNAc residue transferred by GlcNAc-transferase V abolishes the binding of BLL. Thus, GSL-II and BLL forms a pair of complementally probes to profile a series of agalacto-type N-glycans.
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Affiliation(s)
- Sachiko Nakamura-Tsuruta
- Glycostructure Analysis Team, Research Center for Glycoscience, National Institute of Advanced Industrial Science and Technology, AIST Tsukuba Central 2, 1-1-1, Umezono, Tsukuba, Ibaraki 305-8568
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27
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Nishina A, Kimura H, Sekiguchi A, Fukumoto RH, Nakajima S, Furukawa S. Lysophosphatidylethanolamine in Grifola frondosa as a neurotrophic activator via activation of MAPK. J Lipid Res 2006; 47:1434-43. [PMID: 16614393 DOI: 10.1194/jlr.m600045-jlr200] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We found that Grifola frondosa extracts induced the activation of mitogen-activated protein kinase (MAPK) in cultured PC12 cells, a line of rat pheochromocytoma cells. The active substance was isolated by a few chromatographic steps, including high-performance liquid chromatography, and was identified to be lysophosphatidylethanolamine (LPE) from various structural analyses. LPE from G. frondosa (GLPE) was confirmed to induce the activation of MAPK of cultured PC12 cells and was found to suppress cell condensation and DNA ladder generation evoked by serum deprivation, suggesting that the GLPE had antiapoptotic effects. Moreover, GLPE caused morphological changes in and upregulation of neurofilament M expression of PC12 cells, demonstrating that the GLPE could induce neuronal differentiation of these cells. The activation of MAPK by GLPE was suppressed by AG1478, an antagonist of epidermal growth factor receptor (EGFR), and by U0126, an inhibitor of MAPK kinase (MEK1/2), but not by K252a, an inhibitor of TrkA, or by pertussis toxin. These results demonstrate that GLPE induced the MAPK cascade [EGFR-MEK1/2-extracellular signal-regulated protein kinases (ERK1/2)] of PC12 cells, the activation of which induced neuronal differentiation and suppressed serum deprivation-induced apoptosis. This study has clarified for the first time the involvement of the MAPK signal cascade in LPE actions.
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Affiliation(s)
- Atsuyoshi Nishina
- Gunma Industrial Technology Center, 884-1 Kamesato, Maebashi, Gunma 379-2147, Japan.
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28
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Bhowal J, Guha AK, Chatterjee BP. Purification and molecular characterization of a sialic acid specific lectin from the phytopathogenic fungus Macrophomina phaseolina. Carbohydr Res 2005; 340:1973-82. [PMID: 16009354 DOI: 10.1016/j.carres.2005.06.009] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2005] [Revised: 06/09/2005] [Accepted: 06/13/2005] [Indexed: 11/27/2022]
Abstract
A lectin was isolated and purified from the culture filtrate of the plant pathogenic fungus Macrophomina phaseolina by a combination of ammonium sulfate precipitation, affinity chromatography on fetuin-Sepharose 4B and ion-exchange chromatography on DEAE-A 50. The lectin designated MPL was homogeneous by PAGE and HPLC and a monomeric protein with a molecular weight of approximately 34 kDa as demonstrated by SDS-PAGE. It is a glycoprotein and agglutinated human erythrocytes regardless of the human blood type. Neuraminidase treatment of erythrocytes reduced the agglutination activity of the lectin. It is thermally stable and exhibits maximum activity between pH 6 and 7.2. Its carbohydrate binding specificity was investigated both by hapten inhibition of hemagglutination and by enzyme-conjugated lectin inhibition assay. Although, M. phaseolina lectin bound sialic acid, it exhibited binding affinity towards neuraminyl oligosaccharides of N-linked glycoproteins, alpha-Neu5Ac-(2-->3)-beta-Gal-(1-->4)-GlcNAc being maximum.
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Affiliation(s)
- Jayati Bhowal
- Department of Biological Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032, India
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29
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Ye M, Liu JK, Lu ZX, Zhao Y, Liu SF, Li LL, Tan M, Weng XX, Li W, Cao Y. Grifolin, a potential antitumor natural product from the mushroom Albatrellus confluens, inhibits tumor cell growth by inducing apoptosis in vitro. FEBS Lett 2005; 579:3437-43. [PMID: 15949805 DOI: 10.1016/j.febslet.2005.05.013] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2005] [Accepted: 05/03/2005] [Indexed: 10/25/2022]
Abstract
Grifolin is a natural biologically active substance isolated from the fresh fruiting bodies of the mushroom Albatrellus confluens. Here, for the first time, we describe a novel activity of grifolin, namely its ability to inhibit the growth of tumor cells by the induction of apoptosis. Grifolin strongly inhibited the growth of tumor cell lines: CNE1, HeLa, MCF7, SW480, K562, Raji and B95-8. Analysis of acridine orange (AO)/ethidium bromide (EB) staining and flow cytometry showed that grifolin possessed apoptosis induction activity to CNE1, HeLa, MCF7 and SW480. Furthermore, the cytochrome c release from mitochondria was detected by confocal microscopy in CNE1 cells after a 12h treatment with grifolin. The increase of caspase-8, 9, 3 activities revealed that caspase was a key mediator of the apoptotic pathway induced by grifolin, and the underexpression of Bcl-2 and up-regulation of Bax resulted in the increase of Bax: Bcl-2 ratio, suggesting that Bcl-2 family involved in the control of apoptosis. Owing to the combination of the significant antitumor activity by inducing apoptosis and natural abundance of the compound, grifolin holds the promise of being an interesting antitumor agent that deserves further laboratory and in vivo exploration.
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Affiliation(s)
- Mao Ye
- Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, Hunan 410078, PR China
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30
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Yang N, Tong X, Xiang Y, Zhang Y, Liang Y, Sun H, Wang DC. Molecular Character of the Recombinant Antitumor Lectin from the Edible Mushroom Agrocybe aegerita. ACTA ACUST UNITED AC 2005; 138:145-50. [PMID: 16091588 DOI: 10.1093/jb/mvi109] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The lectin from Agrocybe aegerita (AAL) has been found to possess potent tumor-suppressing function and tumor cell apoptosis-inducing activity. In this paper, we report the full sequence, the active expression of the gene encoding AAL at a high level and bioassay of the binding property with lactose, apoptosis-inducing activity and DNase activity of recombinant AAL (rAAL). The results reveal that AAL is a member of the galectin family and the dimeric form is the active unit for the functional performance. The rAAL showed comparable tumor cell apoptosis-inducing activity with the wild AAL but no DNase activity at all. The molecular characters revealed by this study are significant for the in-depth investigation of the functional mechanism of this interesting protein.
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Affiliation(s)
- Na Yang
- Center for Structural and Molecular Biology, Institute of Biophysics, Chinese Academy of Science, Beijing
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31
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Yang N, Tong X, Xiang Y, Zhang Y, Sun H, Wang DC. Crystallization and preliminary crystallographic studies of the recombinant antitumour lectin from the edible mushroom Agrocybe aegerita. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2005; 1751:209-12. [PMID: 15996911 DOI: 10.1016/j.bbapap.2005.06.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2005] [Revised: 06/06/2005] [Accepted: 06/07/2005] [Indexed: 11/23/2022]
Abstract
The antitumour lectin from Agrocybe aegerita, named AAL, shows strong inhibition effects on human and mouse tumour cells via apoptosis induction activity. Recombinant AAL (rAAL) has been expressed and purified. Both rAAL and rAAL-lactose complex have been crystallized and their X-ray diffraction data were collected to resolutions of 1.9 A and 1.6 A, respectively. Both crystals belong to space group P2(1) with unit cell parameters a = 53.20 A, b = 66.01 A, c = 57.86 A, beta = 109.38 and a = 53.38 A, b = 66.29 A, c = 58.02 A, beta = 109.03, respectively.
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Affiliation(s)
- Na Yang
- Center for Structural and Molecular Biology, Institute of Biophysics, Chinese Academy of Science, Beijing 100101, People's Republic of China
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32
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INAGAKI S, MORIMURA S, SHIGEMATSU T, KIDA K, AKUTAGAWA H. Apoptosis Induction by Vinegar Produced from Boiled Extract of Black Soybeans in Human Monoblastic Leukemia U937 Cells: Difference in Sensitivity to Cell Toxicity Compared to Normal Lymphocytes. FOOD SCIENCE AND TECHNOLOGY RESEARCH 2005. [DOI: 10.3136/fstr.11.311] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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