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Barlang LA, Mohl BP, Blaurock C, Harder S, Breithaupt A, Merkel OM, Balkema-Buschmann A, Popp A. SARS-CoV-2 induced changes in the glycosylation pattern in the respiratory tract of Golden Syrian hamsters. Acta Histochem 2023; 125:152077. [PMID: 37523787 DOI: 10.1016/j.acthis.2023.152077] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 07/24/2023] [Accepted: 07/24/2023] [Indexed: 08/02/2023]
Abstract
Even after more than two years of intensive research, not all of the pathophysiological processes of Coronavirus Disease 2019 (COVID-19), induced by severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) infection, have been fully elucidated. The initial virus-host interaction at the respiratory epithelium plays a crucial role in the course and progression of the infection, and is highly dependent on the glycosylation pattern of the host cell and of the secreted mucins. Glycans are polysaccharides that can be attached to proteins and thereby add to their stability and functionality. Lectins are glycan-binding proteins that recognize specific glycan motifs, and lectin histochemistry is a suitable tool to visualize and examine glycosylation pattern changes in tissues. In this study we used lectins with different glycan-specificities for the visualization of glycosylation pattern changes in the respiratory tract of SARS-CoV-2 infected Golden Syrian hamsters. While some lectins (LEL, STL) enable the visualization of the damage to alveolar type 1 pneumocytes, other lectins, e.g., GSLI, visualized the loss and subsequent hyperplasia of type 2 pneumocytes. UEAI staining was co-localized with KI67, a proliferation marker. Double staining of lectins LEL, STL and WGA with specific immune cell markers (Iba1, CD68) showed co-localization and the dominant infiltration of monocyte-derived macrophages into infected alveolar tissue. The elucidation of the glycosylation pattern of the respiratory tract cells in uninfected and infected Golden Syrian hamsters revealed physiological and pathological aspects of the disease that may open new possibilities for therapeutic development.
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Affiliation(s)
- Lea-Adriana Barlang
- Preclinical Safety, AbbVie Deutschland GmbH & Co. KG, Knollstraße, 67061 Ludwigshafen, Germany; Department of Pharmacy, Pharmaceutical Technology and Biopharmacy, Ludwig-Maximilians-University, Butenandtstraße 5-13, 8133 Munich, Germany.
| | - Björn-Patrick Mohl
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Suedufer 10, 17493 Greifswald, Insel Riems, Germany
| | - Claudia Blaurock
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Suedufer 10, 17493 Greifswald, Insel Riems, Germany
| | - Sophia Harder
- Preclinical Safety, AbbVie Deutschland GmbH & Co. KG, Knollstraße, 67061 Ludwigshafen, Germany
| | - Angele Breithaupt
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Suedufer 10, 17493 Greifswald, Insel Riems, Germany
| | - Olivia M Merkel
- Department of Pharmacy, Pharmaceutical Technology and Biopharmacy, Ludwig-Maximilians-University, Butenandtstraße 5-13, 8133 Munich, Germany
| | - Anne Balkema-Buschmann
- Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Suedufer 10, 17493 Greifswald, Insel Riems, Germany
| | - Andreas Popp
- Preclinical Safety, AbbVie Deutschland GmbH & Co. KG, Knollstraße, 67061 Ludwigshafen, Germany
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Grosche VR, Souza LPF, Ferreira GM, Guevara-Vega M, Carvalho T, Silva RRDS, Batista KLR, Abuna RPF, Silva JS, Calmon MDF, Rahal P, da Silva LCN, Andrade BS, Teixeira CS, Sabino-Silva R, Jardim ACG. Mannose-Binding Lectins as Potent Antivirals against SARS-CoV-2. Viruses 2023; 15:1886. [PMID: 37766292 PMCID: PMC10536204 DOI: 10.3390/v15091886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 08/17/2023] [Accepted: 08/30/2023] [Indexed: 09/29/2023] Open
Abstract
The SARS-CoV-2 entry into host cells is mainly mediated by the interactions between the viral spike protein (S) and the ACE-2 cell receptor, which are highly glycosylated. Therefore, carbohydrate binding agents may represent potential candidates to abrogate virus infection. Here, we evaluated the in vitro anti-SARS-CoV-2 activity of two mannose-binding lectins isolated from the Brazilian plants Canavalia brasiliensis and Dioclea violacea (ConBR and DVL). These lectins inhibited SARS-CoV-2 Wuhan-Hu-1 strain and variants Gamma and Omicron infections, with selectivity indexes (SI) of 7, 1.7, and 6.5, respectively for ConBR; and 25, 16.8, and 22.3, for DVL. ConBR and DVL inhibited over 95% of the early stages of the viral infection, with strong virucidal effect, and also protected cells from infection and presented post-entry inhibition. The presence of mannose resulted in the complete lack of anti-SARS-CoV-2 activity by ConBR and DVL, recovering virus titers. ATR-FTIR, molecular docking, and dynamic simulation between SARS-CoV-2 S and either lectins indicated molecular interactions with predicted binding energies of -85.4 and -72.0 Kcal/Mol, respectively. Our findings show that ConBR and DVL lectins possess strong activities against SARS-CoV-2, potentially by interacting with glycans and blocking virus entry into cells, representing potential candidates for the development of novel antiviral drugs.
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Affiliation(s)
- Victória Riquena Grosche
- Laboratory of Antiviral Research, Institute of Biomedical Science (ICBIM), Federal University of Uberlândia (UFU), Uberlândia 38405-317, Brazil; (V.R.G.); (G.M.F.)
- Institute of Biosciences, Languages, and Exact Sciences (Ibilce), São Paulo State University (Unesp), São José do Rio Preto 15054-000, Brazil; (T.C.); (M.d.F.C.); (P.R.)
| | - Leandro Peixoto Ferreira Souza
- Innovation Center in Salivary Diagnostic and Nanobiotechnology, Institute of Biomedical Science (ICBIM), Federal University of Uberlândia (UFU), Uberlândia 38405-317, Brazil; (L.P.F.S.); (M.G.-V.)
| | - Giulia Magalhães Ferreira
- Laboratory of Antiviral Research, Institute of Biomedical Science (ICBIM), Federal University of Uberlândia (UFU), Uberlândia 38405-317, Brazil; (V.R.G.); (G.M.F.)
| | - Marco Guevara-Vega
- Innovation Center in Salivary Diagnostic and Nanobiotechnology, Institute of Biomedical Science (ICBIM), Federal University of Uberlândia (UFU), Uberlândia 38405-317, Brazil; (L.P.F.S.); (M.G.-V.)
| | - Tamara Carvalho
- Institute of Biosciences, Languages, and Exact Sciences (Ibilce), São Paulo State University (Unesp), São José do Rio Preto 15054-000, Brazil; (T.C.); (M.d.F.C.); (P.R.)
| | | | | | - Rodrigo Paolo Flores Abuna
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, Brazil; (R.P.F.A.); (J.S.S.)
- Oswaldo Cruz Foundation (Fiocruz), Bi-Institutional Platform for Translational Medicine, Ribeirão Preto 14049-900, Brazil
| | - João Santana Silva
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto 14049-900, Brazil; (R.P.F.A.); (J.S.S.)
- Oswaldo Cruz Foundation (Fiocruz), Bi-Institutional Platform for Translational Medicine, Ribeirão Preto 14049-900, Brazil
| | - Marília de Freitas Calmon
- Institute of Biosciences, Languages, and Exact Sciences (Ibilce), São Paulo State University (Unesp), São José do Rio Preto 15054-000, Brazil; (T.C.); (M.d.F.C.); (P.R.)
| | - Paula Rahal
- Institute of Biosciences, Languages, and Exact Sciences (Ibilce), São Paulo State University (Unesp), São José do Rio Preto 15054-000, Brazil; (T.C.); (M.d.F.C.); (P.R.)
| | | | - Bruno Silva Andrade
- Laboratory of Bioinformatics and Computational Chemistry, State University of Southwest of Bahia, Jequié 45205-490, Brazil;
| | - Claudener Souza Teixeira
- Center of Agrarian Science and Biodiversity, Federal University of Cariri (UFCA), Crato 63130-025, Brazil; (R.R.d.S.S.); (C.S.T.)
| | - Robinson Sabino-Silva
- Innovation Center in Salivary Diagnostic and Nanobiotechnology, Institute of Biomedical Science (ICBIM), Federal University of Uberlândia (UFU), Uberlândia 38405-317, Brazil; (L.P.F.S.); (M.G.-V.)
| | - Ana Carolina Gomes Jardim
- Laboratory of Antiviral Research, Institute of Biomedical Science (ICBIM), Federal University of Uberlândia (UFU), Uberlândia 38405-317, Brazil; (V.R.G.); (G.M.F.)
- Institute of Biosciences, Languages, and Exact Sciences (Ibilce), São Paulo State University (Unesp), São José do Rio Preto 15054-000, Brazil; (T.C.); (M.d.F.C.); (P.R.)
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Alsolami A, Dirar AI, Konozy EHE, Osman MEFM, Ibrahim MA, Alshammari KF, Alshammari F, Alazmi M, Said KB. Genome-Wide Mining of Selaginella moellendorffii for Hevein-like Lectins and Their Potential Molecular Mimicry with SARS-CoV-2 Spike Glycoprotein. Curr Issues Mol Biol 2023; 45:5879-5901. [PMID: 37504288 PMCID: PMC10378081 DOI: 10.3390/cimb45070372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 05/30/2023] [Accepted: 06/02/2023] [Indexed: 07/29/2023] Open
Abstract
Multidisciplinary research efforts on potential COVID-19 vaccine and therapeutic candidates have increased since the pandemic outbreak of SARS-CoV-2 in 2019. This search has become imperative due to the increasing emergences and limited widely available medicines. The presence of bioactive anti-SARS-CoV-2 molecules was examined from various plant sources. Among them is a group of proteins called lectins that can bind carbohydrate moieties. In this article, we present ten novel, chitin-specific Hevein-like lectins that were derived from Selaginella moellendorffii v1.0's genome. The capacity of these lectin homologs to bind with the spike protein of SARS-CoV-2 was examined. Using the HDOCK server, 3D-modeled Hevein-domains were docked to the spike protein's receptor binding domain (RBD). The Smo446851, Smo125663, and Smo99732 interacted with Asn343-located complex N-glycan and RBD residues, respectively, with binding free energies of -17.5, -13.0, and -26.5 Kcal/mol. The molecular dynamics simulation using Desmond and the normal-state analyses via torsional coordinate association for the Smo99732-RBD complex using iMODS is characterized by overall higher stability and minimum deformity than the other lectin complexes. The three lectins interacting with carbohydrates were docked against five individual mutations that frequently occur in major SARS-CoV-2 variants. These were in the spike protein's receptor-binding motif (RBM), while Smo125663 and Smo99732 only interacted with the spike glycoprotein in a protein-protein manner. The precursors for the Hevein-like homologs underwent additional characterization, and their expressional profile in different tissues was studied. These in silico findings offered potential lectin candidates targeting key N-glycan sites crucial to the virus's virulence and infection.
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Affiliation(s)
- Ahmed Alsolami
- Department of Internal Medicine, College of Medicine, University of Ha'il, Ha'il 55476, Saudi Arabia
| | - Amina I Dirar
- Medicinal, Aromatic Plants and Traditional Medicine Research Institute (MAPTRI), National Center for Research, Mek Nimr Street, Khartoum 11111, Sudan
| | - Emadeldin Hassan E Konozy
- Department of Biotechnology, Africa City of Technology (ACT), Khartoum 11111, Sudan
- Pharmaceutical Research and Development Centre, Faculty of Pharmacy, Karary University, Omdurman, Khartoum 11111, Sudan
| | | | - Mohanad A Ibrahim
- Department of Data Science, King Abdullah International Medical Research Center (KAIMRC), Riyadh 12211, Saudi Arabia
| | - Khalid Farhan Alshammari
- Department of Internal Medicine, College of Medicine, University of Ha'il, Ha'il 55476, Saudi Arabia
| | - Fawwaz Alshammari
- Department of Dermatology, College of Medicine, University of Ha'il, Ha'il 55476, Saudi Arabia
| | - Meshari Alazmi
- College of Computer Science and Engineering, University of Ha'il, Ha'il 81451, Saudi Arabia
| | - Kamaleldin B Said
- Department of Pathology and Microbiology, College of Medicine, University of Ha'il, Ha'il 55476, Saudi Arabia
- Genomics, Bioinformatics and Systems Biology, Carleton University, 1125 Colonel-By Drive, Ottawa, ON K1S 5B6, Canada
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Osman MEM, Osman RSH, Elmubarak SA, Dirar AI, Konozy EHE. Phoenix dactylifera (date palm; Arecaceae) putative lectin homologs: Genome-wide search, architecture analysis, and evolutionary relationship. Saudi J Biol Sci 2023; 30:103676. [PMID: 37213699 PMCID: PMC10197109 DOI: 10.1016/j.sjbs.2023.103676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 04/10/2023] [Accepted: 04/27/2023] [Indexed: 05/23/2023] Open
Abstract
The date palm, Phoenix dactylifera, is a vital crop in nations in the Middle East and North Africa. The date palm was thought to have outstanding traditional medicinal value because it was abundant in phytochemicals with diverse chemical structures. The date palm's ability to withstand harsh environments could be partly attributed to a class of proteins known as lectins, which are carbohydrate-binding proteins that can bind sugar moieties reversibly and without changing their chemical structures. After scanning the genome of P. dactylifera (GCF 009389715.1), this in silico study discovered 196 possible lectin homologs from 11 different families, some specific to plants. At the same time, others could also be found in other kingdoms of life. Their domain architectures and functional amino acid residues were investigated, and they yielded a 40% true-lectin with known conserved carbohydrate-binding residues. Further, their probable subcellular localization, physiochemical and phylogenetic analyses were also performed. Scanning all putative lectin homologs against the anticancer peptide (ACP) dataset found in the AntiCP2.0 webpage identified 26 genes with protein kinase receptors (Lec-KRs) belonging to 5 lectin families, which are reported to have at least one ACP motif. Our study offers the first account of Phoenix-lectins and their organization that can be used for further structural and functional analysis and investigating their potential as anticancer proteins.
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Affiliation(s)
| | | | - Sara A.A Elmubarak
- Department of Biotechnology, Africa City of Technology (ACT), Khartoum, Sudan
| | - Amina I. Dirar
- Medicinal, Aromatic Plants and Traditional Medicine Research Institute (MAPTRI), National Center for Research, Mek Nimr Street, Khartoum, Sudan
| | - Emadeldin Hassan E. Konozy
- Department of Biotechnology, Africa City of Technology (ACT), Khartoum, Sudan
- Pharmaceutical Research and Development, Centre Faculty of Pharmacy, Karary University, Omdurman, Khartoum State, Sudan
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Pessoa RBG, de Oliveira WF, Dos Santos Correia MT, Napoleão TH, Paiva PMG, Filho PEC, Fontes A, Coelho LCBB. Fluorescent nanoprobes based on quantum dots conjugated to cramoll to assess surface carbohydrates of Aeromonas spp. Biochim Biophys Acta Gen Subj 2023; 1867:130373. [PMID: 37137342 DOI: 10.1016/j.bbagen.2023.130373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 04/22/2023] [Accepted: 04/26/2023] [Indexed: 05/05/2023]
Abstract
The association of quantum dots (QDs) to carbohydrate-binding proteins - lectins - has revealed novel biotechnological strategies for glycobiology studies. Herein, carboxyl-coated QDs were conjugated by adsorption to Cramoll, a glucose/mannose lectin obtained from Cratylia mollis seeds. Then, the conjugates were optically characterized and used to evaluate the surface carbohydrate profiles of four Aeromonas species isolated from the tambaqui fish (Colossoma macropomum). All the Aeromonas cells were labeled by the conjugate. Inhibition assays with methyl-α-D-mannopyranoside and mannan were performed to confirm the labeling specificity. Cramoll-QDs conjugates presented high brightness and showed similar absorption and emission profiles compared to bare QDs. According to the labeling pattern of Aeromonas spp. by the conjugate, results suggested that A. jandaei and A. dhakensis strains may harbor a higher content of more complex glucose/mannose surface glycans, with more available sites for Cramoll-QDs interaction, than A. hydrophila and A. caviae. Noteworthy, the Cramoll-QDs conjugates demonstrated to be a potential tool for bacterial characterization based on superficial carbohydrate detection.
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Affiliation(s)
| | - Weslley Felix de Oliveira
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | | | - Thiago Henrique Napoleão
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | | | - Paulo Euzébio Cabral Filho
- Departamento de Biofísica e Radiobiologia, Centro de Biociências, Universidade Federal de Pernambuco, Recife, PE, Brazil
| | - Adriana Fontes
- Departamento de Biofísica e Radiobiologia, Centro de Biociências, Universidade Federal de Pernambuco, Recife, PE, Brazil.
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Sabzian-Molaei F, Hosseini S, Alipour A, Ghaderi H, Fotouhi-Chahouki F, Hadi A, Shahsavarani H. Urtica dioica agglutinin (UDA) as a potential candidate for inhibition of SARS-CoV-2 Omicron variants: In silico prediction and experimental validation. Phytomedicine 2023; 111:154648. [PMID: 36681052 PMCID: PMC9815882 DOI: 10.1016/j.phymed.2023.154648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 12/27/2022] [Accepted: 01/03/2023] [Indexed: 06/17/2023]
Abstract
BACKGROUND The high number of mutations and consequent structure modifications in a Receptor-Binding Domain (RBD) of the spike protein of the Omicron variant of SARS-CoV-2 increased concerns about evading neutralization by antibodies induced by previous infection or vaccination. Thus, developing novel drugs with potent inhibitory activity can be considered an alternative for treating this highly transmissible variant. Considering that Urtica dioica agglutinin (UDA) displays antiviral activity against SARS-CoV-2, the potency of this lectin to inhibit the Receptor Binding Domain of the Omicron variant (RBDOmic) was examined in this study. PURPOSE This study examines how UDA inhibits the Omicron variant of SARS-CoV-2 by blocking its RBD, using a combination of in silico and experimental methods. METHODS To investigate the interaction between UDA and RBDOmic, the CLUSPRO 2.0 web server was used to dock the RBDOmic-UDA complex, and molecular dynamics simulations were performed by the Gromacs 2020.2 software to confirm the stability of the selected docked complex. Finally, the binding affinity (ΔG) of the simulation was calculated using MM-PBSA. In addition, ELISA and Western blot tests were used to examine UDA's binding to RBDOmic. RESULTS Based on the docking results, UDA forms five hydrogen bonds with the RBDOmic active site, which contains mutated residues Tyr501, Arg498, Arg493, and His505. According to MD simulations, the UDA-RBDOmic complex is stable over 100 ns, and its average binding energy during the simulation is -87.201 kJ/mol. Also, the ELISA test showed that UDA significantly binds to RBDOmic, and by increasing the concentration of UDA protein, the attachment to RBDOmic became stronger. In Western blotting, RBDOmic was able to attach to and detect UDA. CONCLUSION This study indicates that UDA interaction with RBDOmic prevents virus attachment to Angiotensin-converting enzyme 2 (ACE2) and, therefore, its entry into the host cell. Altogether, UDA exhibited a significant suppression effect on the Omicron variant and can be considered a new candidate to improve protection against severe infection of this variant.
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Affiliation(s)
- Fatemeh Sabzian-Molaei
- Laboratory of Regenerative Medicine & Biomedical Innovations, Pasteur Institute of Iran, Tehran, Iran
| | | | - Atefeh Alipour
- Department of Nanobiotechnology, Pasteur Institute of Iran, Tehran, Iran.
| | - Hajarossadat Ghaderi
- Laboratory of Regenerative Medicine & Biomedical Innovations, Pasteur Institute of Iran, Tehran, Iran
| | | | - Amin Hadi
- Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, Iran.
| | - Hosein Shahsavarani
- Laboratory of Regenerative Medicine & Biomedical Innovations, Pasteur Institute of Iran, Tehran, Iran; Department of Cell and Molecular Biology, Faculty of Life science and Biotechnology, Shahid Beheshti University, Tehran, Iran.
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Marinho ADO, Brito JDS, da Costa JA, da Silva AR, da Silva SP, de Amorim LC, Correia MTDS, Paiva PMG, de Oliveira AM, Patriota LLDS, Napoleão TH. Schinus terebinthifolia leaf lectin has central and peripheral antinociceptive action mediated by its carbohydrate-recognition domain and delta-opioid receptors. J Ethnopharmacol 2023; 301:115817. [PMID: 36228889 DOI: 10.1016/j.jep.2022.115817] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 09/29/2022] [Accepted: 10/04/2022] [Indexed: 06/16/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Preparations from the bark and leaves of Schinus terebinthifolia Raddi are commonly used to treat toothaches and sore throats. The use of medications based on leaves of this plant has also been reported for pain of arthritis, toothache, and sore throat. Some evidence indicated that the lectin SteLL is an antinociceptive agent from leaves. AIM OF THE STUDY This study evaluated the antinociceptive activity of S. terebinthifolia leaf lectin (SteLL) using mouse models of peripheral and central nociception. MATERIALS AND METHODS Animals were treated intraperitoneally with SteLL at 1, 5, and 10 mg/kg. An acetic acid-induced abdominal writhing test was performed to screen for the antinociceptive effect of the lectin. Next, the formalin test was used to assess the effects of SteLL on neurogenic (first phase) and inflammatory (second phase) pain, as well as to investigate the involvement of the carbohydrate-recognition domain (CRD) of SteLL and opioid receptors in the antinociceptive effect. The tail immersion test was performed to assess the central antinociception. Additionally, a rotarod test was performed to evaluate the effects of lectin on motor coordination in mice. RESULTS SteLL reduced the number of acetic acid-induced writhes by 83.5-100.0%. In the first phase of the formalin test, SteLL reduced paw licking time by 49.4-50.5%, while in the second phase, SteLL reduced paw licking time by 80.5-82.6%. This antinociceptive effect was reversed by the previous incubation of the lectin with ovalbumin (indicating the possible involvement of the CRD) and by the administration of naloxone, a nonselective opioid receptor antagonist. When testing selective antagonists of opioid receptors (μ, δ, and κ), only naltrindole, a selective δ receptor antagonist, blocked the antinociceptive action of SteLL during the second phase of the formalin test. In the tail immersion test, SteLL (1, 5, and 10 mg/kg) administration reduced sensitivity to thermal stimulus, which was observed even after 2 h. SteLL (10 mg/kg) did not affect animal motor coordination in rotarod test when compared to the control group. CONCLUSION SteLL has peripheral and central analgesic action involving opioid receptor modulation without affecting the motor coordination of animals. These results provide new perspectives for developing analgesic agents using lectins.
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Affiliation(s)
- Amanda de Oliveira Marinho
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil.
| | - Jéssica de Santana Brito
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil.
| | - Jainaldo Alves da Costa
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil.
| | - Abdênego Rodrigues da Silva
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil.
| | - Suéllen Pedrosa da Silva
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil.
| | | | | | - Patrícia Maria Guedes Paiva
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil.
| | - Alisson Macário de Oliveira
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil.
| | | | - Thiago Henrique Napoleão
- Departamento de Bioquímica, Centro de Biociências, Universidade Federal de Pernambuco, Recife, Pernambuco, Brazil.
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Konozy EHE, Osman MEFM, Dirar AI, Ghartey-Kwansah G. Plant lectins: A new antimicrobial frontier. Biomed Pharmacother 2022; 155:113735. [PMID: 36152414 DOI: 10.1016/j.biopha.2022.113735] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 09/19/2022] [Accepted: 09/19/2022] [Indexed: 11/02/2022] Open
Abstract
Pathogenic bacteria, viruses, fungi, parasites, and other microbes constantly change to ensure survival. Several pathogens have adopted strict and intricate strategies to fight medical treatments. Many drugs, frequently prescribed to treat these pathogens, are becoming obsolete and ineffective. Because pathogens have gained the capacity to tolerate or resist medications targeted at them, hence the term antimicrobial resistance (AMR), in that regard, many natural compounds have been routinely used as new antimicrobial agents to treat infections. Thus, plant lectins, the carbohydrate-binding proteins, have been targeted as promising drug candidates. This article reviewed more than 150 published papers on plant lectins with promising antibacterial and antifungal properties. We have also demonstrated how some plant lectins could express a synergistic action as adjuvants to boost the efficacy of obsolete or abandoned antimicrobial drugs. Emphasis has also been given to their plausible mechanism of action. The study further reports on the immunomodulatory effect of plant lectins and how they boost the immune system to curb or prevent infection.
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Affiliation(s)
| | | | - Amina I Dirar
- Medicinal, Aromatic Plants and Traditional Medicine Research Institute (MAPTRI), National Center for Research, Mek Nimr Street, Khartoum, Sudan.
| | - George Ghartey-Kwansah
- Department of Biomedical Sciences, School of Allied Health Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana.
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Osman MEFM, Dirar AI, Konozy EHE. Genome-wide screening of lectin putative genes from Sorghum bicolor L., distribution in QTLs and a probable implications of lectins in abiotic stress tolerance. BMC Plant Biol 2022; 22:397. [PMID: 35963996 PMCID: PMC9375933 DOI: 10.1186/s12870-022-03792-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 08/08/2022] [Indexed: 05/30/2023]
Abstract
BACKGROUND Sorghum bicolor is one of the most important crops worldwide with the potential to provide resilience when other economic staples might fail against the continuous environmental changes. Many physiological, developmental and tolerance traits in plants are either controlled or influenced by lectins; carbohydrate binding proteins. Hence, we aimed at providing a comprehensive in silico account on sorghum's lectins and study their possible implication on various desired agronomical traits. RESULTS We have searched sorghum's genome from grain and sweet types for lectins putative genes that encode proteins with domains capable of differentially binding carbohydrate moieties and trigger various physiological responses. Of the 12 known plant lectin families, 8 were identified regarding their domain architectures, evolutionary relationships, physiochemical characteristics, and gene expansion mechanisms, and they were thoroughly addressed. Variations between grain and sweet sorghum lectin homologs in term of the presence/absence of certain other joint domains like dirigent and nucleotide-binding adaptor shared by APAF-1, R-proteins, and CED-4 (NB-ARC) indicate a possible neofunctionalization. Lectin sequences were found to be preferentially overrepresented in certain quantitative trait loci (QTLs) related to various traits under several subcategories such as cold, drought, salinity, panicle/grain composition, and leaf morphology. The co-localization and distribution of lectins among multiple QTLs provide insights into the pleiotropic effects that could be played by one lectin gene in numerous traits. CONCLUSION Our study offers a first-time inclusive details on sorghum lectins and their possible role in conferring tolerance against abiotic stresses and other economically important traits that can be informative for future functional analysis and breeding studies.
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Affiliation(s)
| | - Amina Ibrahim Dirar
- Medicinal, Aromatic Plants and Traditional Medicine Research Institute (MAPTRI), National Center for Research, Mek Nimr Street, Khartoum, Sudan
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