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Osterne VJ, Pinto-Junior VR, Oliveira MV, Nascimento KS, Van Damme EJ, Cavada BS. Computational insights into the circular permutation roles on ConA binding and structural stability. Curr Res Struct Biol 2024; 7:100140. [PMID: 38559841 PMCID: PMC10979261 DOI: 10.1016/j.crstbi.2024.100140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 03/17/2024] [Accepted: 03/20/2024] [Indexed: 04/04/2024] Open
Abstract
The mechanisms behind Concanavalin A (ConA) circular permutation have been under investigation since 1985. Although a vast amount of information is available about this lectin and its applications, the exact purpose of its processing remains unclear. To shed light on this, this study employed computer simulations to compare the unprocessed ProConA with the mature ConA. This approach aimed to reveal the importance of the post-translational modifications, especially how they affect the lectin stability and carbohydrate-binding properties. To achieve these goals, we conducted 200 ns molecular dynamics simulations and trajectory analyses on the monomeric forms of ProConA and ConA (both unbound and in complex with D-mannose and the GlcNAc2Man9 N-glycan), as well as on their oligomeric forms. Our findings reveal significant stability differences between ProConA and ConA at both the monomeric and tetrameric levels, with ProConA exhibiting consistently lower stability parameters compared to ConA. In terms of carbohydrate binding properties, however, both lectins showed remarkable similarities in their interaction profiles, contact numbers, and binding free energies with D-mannose and the high-mannose N-glycan. Overall, our results suggest that the processing of ProConA significantly enhances the stability of the mature lectin, especially in maintaining the tetrameric oligomer, without substantially affecting its carbohydrate-binding properties.
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Affiliation(s)
- Vinicius J.S. Osterne
- Laboratory of Biochemistry and Glycobiology, Department of Biotechnology, Ghent University, 9000, Ghent, Belgium
| | - Vanir R. Pinto-Junior
- Laboratory of Biologically Active Molecules, Department of Biochemistry and Molecular Biology, Federal University of Ceara, 60.440-970, Fortaleza, CE, Brazil
- Department of Physics, Federal University of Ceara, 60.440-970, Fortaleza, CE, Brazil
| | - Messias V. Oliveira
- Laboratory of Biologically Active Molecules, Department of Biochemistry and Molecular Biology, Federal University of Ceara, 60.440-970, Fortaleza, CE, Brazil
| | - Kyria S. Nascimento
- Laboratory of Biologically Active Molecules, Department of Biochemistry and Molecular Biology, Federal University of Ceara, 60.440-970, Fortaleza, CE, Brazil
| | - Els J.M. Van Damme
- Laboratory of Biochemistry and Glycobiology, Department of Biotechnology, Ghent University, 9000, Ghent, Belgium
| | - Benildo S. Cavada
- Laboratory of Biologically Active Molecules, Department of Biochemistry and Molecular Biology, Federal University of Ceara, 60.440-970, Fortaleza, CE, Brazil
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2
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EGFR and p38MAPK Contribute to the Apoptotic Effect of the Recombinant Lectin from Tepary Bean (Phaseolus acutifolius) in Colon Cancer Cells. Pharmaceuticals (Basel) 2023. [DOI: 10.3390/ph16020290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023] Open
Abstract
Previous works showed that a Tepary bean lectin fraction (TBLF) induced apoptosis on colon cancer cells and inhibited early colonic tumorigenesis. One Tepary bean (TB) lectin was expressed in Pichia pastoris (rTBL-1), exhibiting similarities to one native lectin, where its molecular structure and in silico recognition of cancer-type N-glycoconjugates were confirmed. This work aimed to determine whether rTBL-1 retained its bioactive properties and if its apoptotic effect was related to EGFR pathways by studying its cytotoxic effect on colon cancer cells. Similar apoptotic effects of rTBL-1 with respect to TBLF were observed for cleaved PARP-1 and caspase 3, and cell cycle G0/G1 arrest and decreased S phase were observed for both treatments. Apoptosis induction on SW-480 cells was confirmed by testing HA2X, p53 phosphorylation, nuclear fragmentation, and apoptotic bodies. rTBL-1 increased EGFR phosphorylation but also its degradation by the lysosomal route. Phospho-p38 increased in a concentration- and time-dependent manner, matching apoptotic markers, and STAT1 showed activation after rTBL-1 treatment. The results show that part of the rTBL-1 mechanism of action is related to p38 MAPK signaling. Future work will focus further on the target molecules of this recombinant lectin against colon cancer.
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3
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Nabi-Afjadi M, Heydari M, Zalpoor H, Arman I, Sadoughi A, Sahami P, Aghazadeh S. Lectins and lectibodies: potential promising antiviral agents. Cell Mol Biol Lett 2022; 27:37. [PMID: 35562647 PMCID: PMC9100318 DOI: 10.1186/s11658-022-00338-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 04/21/2022] [Indexed: 12/30/2022] Open
Abstract
In nature, lectins are widely dispersed proteins that selectively recognize and bind to carbohydrates and glycoconjugates via reversible bonds at specific binding sites. Many viral diseases have been treated with lectins due to their wide range of structures, specificity for carbohydrates, and ability to bind carbohydrates. Through hemagglutination assays, these proteins can be detected interacting with various carbohydrates on the surface of cells and viral envelopes. This review discusses the most robust lectins and their rationally engineered versions, such as lectibodies, as antiviral proteins. Fusion of lectin and antibody’s crystallizable fragment (Fc) of immunoglobulin G (IgG) produces a molecule called a “lectibody” that can act as a carbohydrate-targeting antibody. Lectibodies can not only bind to the surface glycoproteins via their lectins and neutralize and clear viruses or infected cells by viruses but also perform Fc-mediated antibody effector functions. These functions include complement-dependent cytotoxicity (CDC), antibody-dependent cell-mediated cytotoxicity (ADCC), and antibody-dependent cell-mediated phagocytosis (ADCP). In addition to entering host cells, the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike protein S1 binds to angiotensin-converting enzyme 2 (ACE2) and downregulates it and type I interferons in a way that may lead to lung disease. The SARS-CoV-2 spike protein S1 and human immunodeficiency virus (HIV) envelope are heavily glycosylated, which could make them a major target for developing vaccines, diagnostic tests, and therapeutic drugs. Lectibodies can lead to neutralization and clearance of viruses and cells infected by viruses by binding to glycans located on the envelope surface (e.g., the heavily glycosylated SARS-CoV-2 spike protein).
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Affiliation(s)
- Mohsen Nabi-Afjadi
- Department of Biochemistry, Faculty of Biological Science, Tarbiat Modares University, Tehran, Iran
| | - Morteza Heydari
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, 13145-1384, Iran
| | - Hamidreza Zalpoor
- Shiraz Neuroscience Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.,Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education and Research Network (USERN), Tehran, Iran.,American Association of Kidney Patients, Tampa, FL, USA
| | - Ibrahim Arman
- Department of Molecular Biology and Genetics, Faculty of Sciences and Arts, Zonguldak Bulent Ecevit University, Zonguldak, Turkey
| | - Arezoo Sadoughi
- Department of Immunology, International Campus, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Parisa Sahami
- Medical Biology Research Center, Health Technologies Institute, Kermanshah University of Medical Sciences (KUMS), Kermanshah, Iran
| | - Safiyeh Aghazadeh
- Division of Biochemistry, Department of Basic Sciences, Faculty of Veterinary Medicine, Urmia University, Urmia, 5756151818, Iran.
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4
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Lima LF, Sousa MGDC, Rodrigues GR, de Oliveira KBS, Pereira AM, da Costa A, Machado R, Franco OL, Dias SC. Elastin-like Polypeptides in Development of Nanomaterials for Application in the Medical Field. FRONTIERS IN NANOTECHNOLOGY 2022. [DOI: 10.3389/fnano.2022.874790] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Elastin-like polypeptides (ELPs) are biopolymers formed by amino acid sequences derived from tropoelastin. These biomolecules can be soluble below critical temperatures, forming aggregates at higher temperatures, which makes them an interesting source for the design of different nanobiomaterials. These nanobiomaterials can be obtained from heterologous expression in several organisms such as bacteria, fungi, and plants. Thanks to the many advantages of ELPs, they have been used in the biomedical field to develop nanoparticles, nanofibers, and nanocomposites. These nanostructures can be used in multiple applications such as drug delivery systems, treatments of type 2 diabetes, cardiovascular diseases, tissue repair, and cancer therapy. Thus, this review aims to shed some light on the main advances in elastin-like-based nanomaterials, their possible expression forms, and importance to the medical field.
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5
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Algal and Cyanobacterial Lectins and Their Antimicrobial Properties. Mar Drugs 2021; 19:md19120687. [PMID: 34940686 PMCID: PMC8707200 DOI: 10.3390/md19120687] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 11/19/2021] [Accepted: 11/25/2021] [Indexed: 02/06/2023] Open
Abstract
Lectins are proteins with a remarkably high affinity and specificity for carbohydrates. Many organisms naturally produce them, including animals, plants, fungi, protists, bacteria, archaea, and viruses. The present report focuses on lectins produced by marine or freshwater organisms, in particular algae and cyanobacteria. We explore their structure, function, classification, and antimicrobial properties. Furthermore, we look at the expression of lectins in heterologous systems and the current research on the preclinical and clinical evaluation of these fascinating molecules. The further development of these molecules might positively impact human health, particularly the prevention or treatment of diseases caused by pathogens such as human immunodeficiency virus, influenza, and severe acute respiratory coronaviruses, among others.
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Ishizaki S, Kuramitz H, Sugawara K. Voltammetric Sensing of Soybean Agglutinin Using an Electrode Modified with Electron‐Transfer, Carbohydrate‐Mimetic/Cross‐Linker‐Peptide‐Collagen Film. ELECTROANAL 2021. [DOI: 10.1002/elan.202100380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sora Ishizaki
- Maebashi Institute of Technology Gunma 371-0816 Japan
| | - Hideki Kuramitz
- Department of Environmental Biology and Chemistry Graduate School of Science and Engineering for Research University of Toyama Toyama 930-8555 Japan
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Chettri D, Boro M, Sarkar L, Verma AK. Lectins: Biological significance to biotechnological application. Carbohydr Res 2021; 506:108367. [PMID: 34130214 DOI: 10.1016/j.carres.2021.108367] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 05/31/2021] [Indexed: 10/21/2022]
Abstract
Lectins are a set of non-enzymatic carbohydrate binding proteins appearing in all domains of life. They function to recognize, interact and bring about reversible binding of a specific sugar moiety present in a molecule. Since glycans are ubiquitous in nature and are an essential part of various biological process, the lectins are been investigated to understand the profile of these versatile but complex glycan molecule. The knowledge gained can be used to explore and streamline the various mechanisms involving glycans and their conjugates. Thus, lectins have gained importance in carbohydrate-protein interactions contributing to the development in the field of glycobiology. This has led to a deeper understanding of the importance of saccharide recognition in life. Since their discovery, the lectins have become a great choice of research in the field of glycobiology and their biological significances have recently received considerable attention in the biocontrol field as well as medical sectors.
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Affiliation(s)
| | - Manswama Boro
- Department of Microbiology, Sikkim University, India.
| | - Lija Sarkar
- Department of Microbiology, Sikkim University, India.
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Petch JE, Gurnani P, Yilmaz G, Mastrotto F, Alexander C, Heeb S, Cámara M, Mantovani G. Combining Inducible Lectin Expression and Magnetic Glyconanoparticles for the Selective Isolation of Bacteria from Mixed Populations. ACS APPLIED MATERIALS & INTERFACES 2021; 13:19230-19243. [PMID: 33852268 DOI: 10.1021/acsami.1c00907] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The selective isolation of bacteria from mixed populations has been investigated in varied applications ranging from differential pathogen identification in medical diagnostics and food safety to the monitoring of microbial stress dynamics in industrial bioreactors. Selective isolation techniques are generally limited to the confinement of small populations in defined locations, may be unable to target specific bacteria, or rely on immunomagnetic separation, which is not universally applicable. In this proof-of-concept work, we describe a novel strategy combining inducible bacterial lectin expression with magnetic glyconanoparticles (MGNPs) as a platform technology to enable selective bacterial isolation from cocultures. An inducible mutant of the type 1 fimbriae, displaying the mannose-specific lectin FimH, was constructed in Escherichia coli allowing for "on-demand" glycan-binding protein presentation following external chemical stimulation. Binding to glycopolymers was only observed upon fimbrial induction and was specific for mannosylated materials. A library of MGNPs was produced via the grafting of well-defined catechol-terminal glycopolymers prepared by reversible addition-fragmentation chain transfer (RAFT) polymerization to magnetic nanoparticles. Thermal analysis revealed high functionalization (≥85% polymer by weight). Delivery of MGNPs to cocultures of fluorescently labeled bacteria followed by magnetic extraction resulted in efficient depletion of type 1 fimbriated target cells from wild-type or afimbriate E. coli. Extraction efficiency was found to be dependent on the molecular weight of the glycopolymers utilized to engineer the nanoparticles, with MGNPs decorated with shorter Dopa-(ManAA)50 mannosylated glycopolymers found to perform better than those assembled from a longer Dopa-(ManAA)200 analogue. The extraction efficiency of fimbriated E. coli was also improved when the counterpart strain did not harbor the genetic apparatus for the expression of the type 1 fimbriae. Overall, this work suggests that the modulation of the genetic apparatus encoding bacterial surface-associated lectins coupled with capture through MGNPs could be a versatile tool for the extraction of bacteria from mixed populations.
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Affiliation(s)
- Joshua E Petch
- Division of Molecular Therapeutics and Formulation, School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, U.K
- Nottingham University Biodiscovery Institute, National Biofilms Innovation Centre, School of Life Sciences, University of Nottingham, Nottingham NG7 2RD, U.K
| | - Pratik Gurnani
- Division of Molecular Therapeutics and Formulation, School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, U.K
| | - Gokhan Yilmaz
- Division of Molecular Therapeutics and Formulation, School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, U.K
| | - Francesca Mastrotto
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Via F. Marzolo 5, 35131 Padova, Italy
| | - Cameron Alexander
- Division of Molecular Therapeutics and Formulation, School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, U.K
| | - Stephan Heeb
- Nottingham University Biodiscovery Institute, National Biofilms Innovation Centre, School of Life Sciences, University of Nottingham, Nottingham NG7 2RD, U.K
| | - Miguel Cámara
- Nottingham University Biodiscovery Institute, National Biofilms Innovation Centre, School of Life Sciences, University of Nottingham, Nottingham NG7 2RD, U.K
| | - Giuseppe Mantovani
- Division of Molecular Therapeutics and Formulation, School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, U.K
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Vega-Rojas LJ, Luzardo-Ocampo I, Mosqueda J, Palmerín-Carreño DM, Escobedo-Reyes A, Blanco-Labra A, Escobar-García K, García-Gasca T. Bioaccessibility and In Vitro Intestinal Permeability of a Recombinant Lectin from Tepary Bean ( Phaseolus acutifolius) Using the Everted Intestine Assay. Int J Mol Sci 2021; 22:1049. [PMID: 33494324 PMCID: PMC7866216 DOI: 10.3390/ijms22031049] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 01/07/2021] [Accepted: 01/13/2021] [Indexed: 12/28/2022] Open
Abstract
Tepary bean (Phaseolus acutifolius) lectins exhibit differential in vitro and in vivo biological effects, but their gastrointestinal interactions and digestion have not yet been assessed. This work aimed to evaluate the changes of a recombinant Tepary bean lectin (rTBL-1) through an in vitro and ex vivo gastrointestinal process. A polyclonal antibody was developed to selectively detect rTBL-1 by Western blot (WB) and immunohistochemical analysis. Everted gut sac viability was confirmed until 60 min, where protein bioaccessibility, apparent permeability coefficient, and efflux ratio showed rTBL-1 partial digestion and absorption. Immunoblot assays suggested rTBL-1 internalization, since the lectin was detected in the digestible fraction. The immunohistochemical assay detected rTBL-1 presence at the apical side of the small intestine, potentially due to the interaction with the intestinal cell membrane. The in silico interactions between rTBL-1 and some saccharides or derivatives showed high binding affinity to sialic acid (-6.70 kcal/mol) and N-acetylglucosamine (-6.10 kcal/mol). The ultra-high-performance liquid chromatography-electron spray ionization-quantitative time-of-flight coupled to mass spectrometry (UHPLC-ESI-QTOF/MS) analysis showed rTBL-1 presence in the gastric content and the non-digestible fraction after intestinal simulation conditions. The results indicated that rTBL-1 partially resisted the digestive conditions and interacted with the intestinal membrane, whereas its digestion allowed the absorption or internalization of the protein or the derivative peptides. Further purification of digestion samples should be conducted to identify intact rTBL-1 protein and digested peptides to assess their physiological effects.
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Affiliation(s)
- Lineth Juliana Vega-Rojas
- Laboratorio de Biología Celular y Molecular, Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, Av. de las Ciencias s/n, Juriquilla, Querétaro 76230, Querétaro, Mexico; (L.J.V.-R.); (D.M.P.-C.); (K.E.-G.)
| | - Ivan Luzardo-Ocampo
- Programa de Investigación y Posgrado en Ciencias de los Alimentos, Facultad de Quimica, Universidad Autónoma de Querétaro, Querétaro 76010, Querétaro, Mexico;
| | - Juan Mosqueda
- Laboratorio de Inmunología y Vacunas, Facultad de Ciencias Naturales, Campus Aeropuerto, Universidad Autónoma de Querétaro, Carretera a Chichimequillas, Ejido Bolaños, Querétaro 76140, Querétaro, Mexico;
| | - Dulce María Palmerín-Carreño
- Laboratorio de Biología Celular y Molecular, Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, Av. de las Ciencias s/n, Juriquilla, Querétaro 76230, Querétaro, Mexico; (L.J.V.-R.); (D.M.P.-C.); (K.E.-G.)
| | - Antonio Escobedo-Reyes
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C., Av. Normalistas 800, Col. Colinas de la Normal, Guadalajara 44270, Jalisco, Mexico;
| | - Alejandro Blanco-Labra
- Centro de Investigación y de Estudios Avanzados Unidad Irapuato, Departamento de Biotecnología y, Bioquímica, Irapuato 36821, Guanajuato, Mexico;
| | - Konisgmar Escobar-García
- Laboratorio de Biología Celular y Molecular, Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, Av. de las Ciencias s/n, Juriquilla, Querétaro 76230, Querétaro, Mexico; (L.J.V.-R.); (D.M.P.-C.); (K.E.-G.)
| | - Teresa García-Gasca
- Laboratorio de Biología Celular y Molecular, Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, Av. de las Ciencias s/n, Juriquilla, Querétaro 76230, Querétaro, Mexico; (L.J.V.-R.); (D.M.P.-C.); (K.E.-G.)
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10
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Cavada BS, Pinto-Junior VR, Osterne VJS, Oliveira MV, Lossio CF, Silva MTL, Bari AU, Lima LD, Souza-Filho CHD, Nascimento KS. Comprehensive review on Caelsalpinioideae lectins: From purification to biological activities. Int J Biol Macromol 2020; 162:333-348. [DOI: 10.1016/j.ijbiomac.2020.06.161] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 06/15/2020] [Accepted: 06/17/2020] [Indexed: 12/13/2022]
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11
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Padilla CS, Damaj MB, Yang ZN, Molina J, Berquist BR, White EL, Solís-Gracia N, Da Silva J, Mandadi KK. High-Level Production of Recombinant Snowdrop Lectin in Sugarcane and Energy Cane. Front Bioeng Biotechnol 2020; 8:977. [PMID: 33015000 PMCID: PMC7461980 DOI: 10.3389/fbioe.2020.00977] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 07/27/2020] [Indexed: 01/11/2023] Open
Abstract
Sugarcane and energy cane (Saccharum spp. hybrids) are ideal for plant-based production of recombinant proteins because their high resource-use efficiency, rapid growth and efficient photosynthesis enable extensive biomass production and protein accumulation at a cost-effective scale. Here, we aimed to develop these species as efficient platforms to produce recombinant Galanthus nivalis L. (snowdrop) agglutinin (GNA), a monocot-bulb mannose-specific lectin with potent antiviral, antifungal and antitumor activities. Initially, GNA levels of 0.04% and 0.3% total soluble protein (TSP) (0.3 and 3.8 mg kg–1 tissue) were recovered from the culms and leaves, respectively, of sugarcane lines expressing recombinant GNA under the control of the constitutive maize ubiquitin 1 (Ubi) promoter. Co-expression of recombinant GNA from stacked multiple promoters (pUbi and culm-regulated promoters from sugarcane dirigent5-1 and Sugarcane bacilliform virus) on separate expression vectors increased GNA yields up to 42.3-fold (1.8% TSP or 12.7 mg kg–1 tissue) and 7.7-fold (2.3% TSP or 29.3 mg kg–1 tissue) in sugarcane and energy cane lines, respectively. Moreover, inducing promoter activity in the leaves of GNA transgenic lines with stress-regulated hormones increased GNA accumulation to 2.7% TSP (37.2 mg kg–1 tissue). Purification by mannose-agarose affinity chromatography yielded a functional sugarcane recombinant GNA with binding substrate specificity similar to that of native snowdrop-bulb GNA, as shown by enzyme-linked lectin and mannose-binding inhibition assays. The size and molecular weight of recombinant GNA were identical to those of native GNA, as determined by size-exclusion chromatography and MALDI-TOF mass spectrometry. This work demonstrates the feasibility of producing recombinant GNA at high levels in Saccharum species, with the long-term goal of using it as a broad-spectrum antiviral carrier molecule for hemopurifiers and in related therapeutic applications.
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Affiliation(s)
- Carmen S Padilla
- Texas A&M AgriLife Research and Extension Center, Weslaco, TX, United States
| | - Mona B Damaj
- Texas A&M AgriLife Research and Extension Center, Weslaco, TX, United States
| | - Zhong-Nan Yang
- Institute for Plant Gene Function, Department of Biology, Shanghai Normal University, Shanghai, China
| | - Joe Molina
- Texas A&M AgriLife Research and Extension Center, Weslaco, TX, United States
| | | | - Earl L White
- MDx BioAnalytical Laboratory, Inc., College Station, TX, United States
| | - Nora Solís-Gracia
- Texas A&M AgriLife Research and Extension Center, Weslaco, TX, United States
| | - Jorge Da Silva
- Texas A&M AgriLife Research and Extension Center, Weslaco, TX, United States.,Department of Soil and Crop Sciences, Texas A&M University, College Station, TX, United States
| | - Kranthi K Mandadi
- Texas A&M AgriLife Research and Extension Center, Weslaco, TX, United States.,Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX, United States
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Martínez-Alarcón D, Varrot A, Fitches E, Gatehouse JA, Cao M, Pyati P, Blanco-Labra A, Garcia-Gasca T. Recombinant Lectin from Tepary Bean ( Phaseolus acutifolius) with Specific Recognition for Cancer-Associated Glycans: Production, Structural Characterization, and Target Identification. Biomolecules 2020; 10:E654. [PMID: 32340396 PMCID: PMC7226325 DOI: 10.3390/biom10040654] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 04/16/2020] [Accepted: 04/20/2020] [Indexed: 12/16/2022] Open
Abstract
Herein, we report the production of a recombinant Tepary bean lectin (rTBL-1), its three-dimensional (3D) structure, and its differential recognition for cancer-type glycoconjugates. rTBL-1 was expressed in Pichia pastoris, yielding 316 mg per liter of culture, and was purified by nickel affinity chromatography. Characterization of the protein showed that rTBL-1 is a stable 120 kDa homo-tetramer folded as a canonical leguminous lectin with two divalent cations (Ca2+ and Mn2+) attached to each subunit, confirmed in its 3D structure solved by X-ray diffraction at 1.9 Å resolution. Monomers also presented a ~2.5 kDa N-linked glycan located on the opposite face of the binding pocket. It does not participate in carbohydrate recognition but contributes to the stabilization of the interfaces between protomers. Screening for potential rTBL-1 targets by glycan array identified 14 positive binders, all of which correspond to β1-6 branched N-glycans' characteristics of cancer cells. The presence of α1-6 core fucose, also tumor-associated, improved carbohydrate recognition. rTBL-1 affinity for a broad spectrum of mono- and disaccharides was evaluated by isothermal titration calorimetry (ITC); however, no interaction was detected, corroborating that carbohydrate recognition is highly specific and requires larger ligands for binding. This would explain the differential recognition between healthy and cancer cells by Tepary bean lectins.
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Affiliation(s)
- Dania Martínez-Alarcón
- Centro de Investigación y de Estudios Avanzados Unidad Irapuato, Departamento de Biotecnología y Bioquímica, Irapuato 36821, Guanaj uato, Mexico;
- University of Grenoble Alpes, CNRS, CERMAV, 38000 Grenoble, France;
| | - Annabelle Varrot
- University of Grenoble Alpes, CNRS, CERMAV, 38000 Grenoble, France;
| | - Elaine Fitches
- Department of Biosciences, Durham University, Durham DH1 3LE, UK; (E.F.); (J.A.G.); (M.C.); (P.P.)
| | - John A. Gatehouse
- Department of Biosciences, Durham University, Durham DH1 3LE, UK; (E.F.); (J.A.G.); (M.C.); (P.P.)
| | - Min Cao
- Department of Biosciences, Durham University, Durham DH1 3LE, UK; (E.F.); (J.A.G.); (M.C.); (P.P.)
| | - Prashant Pyati
- Department of Biosciences, Durham University, Durham DH1 3LE, UK; (E.F.); (J.A.G.); (M.C.); (P.P.)
| | - Alejandro Blanco-Labra
- Centro de Investigación y de Estudios Avanzados Unidad Irapuato, Departamento de Biotecnología y Bioquímica, Irapuato 36821, Guanaj uato, Mexico;
| | - Teresa Garcia-Gasca
- Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, Santiago de Querétaro 76230, Querétaro, Mexico
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Dang K, Zhang W, Jiang S, Lin X, Qian A. Application of Lectin Microarrays for Biomarker Discovery. ChemistryOpen 2020; 9:285-300. [PMID: 32154049 PMCID: PMC7050261 DOI: 10.1002/open.201900326] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Revised: 02/05/2020] [Indexed: 12/12/2022] Open
Abstract
Many proteins in living organisms are glycosylated. As their glycan patterns exhibit protein-, cell-, and tissue-specific heterogeneity, changes in the glycosylation levels could serve as useful indicators of various pathological and physiological states. Thus, the identification of glycoprotein biomarkers from specific changes in the glycan profiles of glycoproteins is a trending field. Lectin microarrays provide a new glycan analysis platform, which enables rapid and sensitive analysis of complex glycans without requiring the release of glycans from the protein. Recent developments in lectin microarray technology enable high-throughput analysis of glycans in complex biological samples. In this review, we will discuss the basic concepts and recent progress in lectin microarray technology, the application of lectin microarrays in biomarker discovery, and the challenges and future development of this technology. Given the tremendous technical advancements that have been made, lectin microarrays will become an indispensable tool for the discovery of glycoprotein biomarkers.
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Affiliation(s)
- Kai Dang
- Laboratory for Bone Metabolism, Xi'an Key Laboratory of Special Medicine and Health Engineering, Key Laboratory for Space Biosciences and Biotechnology, Research Center for Special Medicine and Health Systems Engineering, NPU-UAB Joint Laboratory for Bone Metabolism, School of Life SciencesNorthwestern Polytechnical UniversityXi'an710072, ShaanxiChina
| | - Wenjuan Zhang
- Laboratory for Bone Metabolism, Xi'an Key Laboratory of Special Medicine and Health Engineering, Key Laboratory for Space Biosciences and Biotechnology, Research Center for Special Medicine and Health Systems Engineering, NPU-UAB Joint Laboratory for Bone Metabolism, School of Life SciencesNorthwestern Polytechnical UniversityXi'an710072, ShaanxiChina
| | - Shanfeng Jiang
- Laboratory for Bone Metabolism, Xi'an Key Laboratory of Special Medicine and Health Engineering, Key Laboratory for Space Biosciences and Biotechnology, Research Center for Special Medicine and Health Systems Engineering, NPU-UAB Joint Laboratory for Bone Metabolism, School of Life SciencesNorthwestern Polytechnical UniversityXi'an710072, ShaanxiChina
| | - Xiao Lin
- Laboratory for Bone Metabolism, Xi'an Key Laboratory of Special Medicine and Health Engineering, Key Laboratory for Space Biosciences and Biotechnology, Research Center for Special Medicine and Health Systems Engineering, NPU-UAB Joint Laboratory for Bone Metabolism, School of Life SciencesNorthwestern Polytechnical UniversityXi'an710072, ShaanxiChina
| | - Airong Qian
- Laboratory for Bone Metabolism, Xi'an Key Laboratory of Special Medicine and Health Engineering, Key Laboratory for Space Biosciences and Biotechnology, Research Center for Special Medicine and Health Systems Engineering, NPU-UAB Joint Laboratory for Bone Metabolism, School of Life SciencesNorthwestern Polytechnical UniversityXi'an710072, ShaanxiChina
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Antitumor Potential of Marine and Freshwater Lectins. Mar Drugs 2019; 18:md18010011. [PMID: 31877692 PMCID: PMC7024344 DOI: 10.3390/md18010011] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 12/18/2019] [Accepted: 12/18/2019] [Indexed: 12/12/2022] Open
Abstract
Often, even the most effective antineoplastic drugs currently used in clinic do not efficiently allow complete healing due to the related toxicity. The reason for the toxicity lies in the lack of selectivity for cancer cells of the vast majority of anticancer agents. Thus, the need for new potent anticancer compounds characterized by a better toxicological profile is compelling. Lectins belong to a particular class of non-immunogenic glycoproteins and have the characteristics to selectively bind specific sugar sequences on the surface of cells. This property is exploited to exclusively bind cancer cells and exert antitumor activity through the induction of different forms of regulated cell death and the inhibition of cancer cell proliferation. Thanks to the extraordinary biodiversity, marine environments represent a unique source of active natural compounds with anticancer potential. Several marine and freshwater organisms, ranging from the simplest alga to the most complex vertebrate, are amazingly enriched in these proteins. Remarkably, all studies gathered in this review show the impressive anticancer effect of each studied marine lectin combined with irrelevant toxicity in vitro and in vivo and pave the way to design clinical trials to assess the real antineoplastic potential of these promising proteins. It provides a concise and precise description of the experimental results, their interpretation as well as the experimental conclusions that can be drawn.
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Hwang HJ, Han JW, Jeon H, Han JW. Induction of Recombinant Lectin Expression by an Artificially Constructed Tandem Repeat Structure: A Case Study Using Bryopsis plumosa Mannose-Binding Lectin. Biomolecules 2018; 8:E146. [PMID: 30441842 PMCID: PMC6316659 DOI: 10.3390/biom8040146] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 11/12/2018] [Accepted: 11/12/2018] [Indexed: 11/16/2022] Open
Abstract
Lectin is an important protein in medical and pharmacological applications. Impurities in lectin derived from natural sources and the generation of inactive proteins by recombinant technology are major obstacles for the use of lectins. Expressing recombinant lectin with a tandem repeat structure can potentially overcome these problems, but few studies have systematically examined this possibility. This was investigated in the present study using three distinct forms of recombinant mannose-binding lectin from Bryopsis plumosa (BPL2)-i.e., the monomer (rD1BPL2), as well as the dimer (rD2BPL2), and tetramer (rD4BPL2) arranged as tandem repeats. The concentration of the inducer molecule isopropyl β-D-1-thiogalactopyranoside and the induction time had no effect on the efficiency of the expression of each construct. Of the tested constructs, only rD4BPL2 showed hemagglutination activity towards horse erythrocytes; the activity of towards the former was 64 times higher than that of native BPL2. Recombinant and native BPL2 showed differences in carbohydrate specificity; the activity of rD4BPL2 was inhibited by the glycoprotein fetuin, whereas that of native BPL2 was also inhibited by d-mannose. Our results indicate that expression as tandem repeat sequences can increase the efficiency of lectin production on a large scale using a bacterial expression system.
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Affiliation(s)
- Hyun-Ju Hwang
- Department of Genetic Resources, National Marine Biodiversity Institute of Korea, Seocheon 33662, Korea.
| | - Jin-Woo Han
- Department of Genetic Resources, National Marine Biodiversity Institute of Korea, Seocheon 33662, Korea.
| | - Hancheol Jeon
- Department of Genetic Resources, National Marine Biodiversity Institute of Korea, Seocheon 33662, Korea.
| | - Jong Won Han
- Department of Genetic Resources, National Marine Biodiversity Institute of Korea, Seocheon 33662, Korea.
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