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Ben Abderrazek R, Ksouri A, Idoudi F, Dhaouadi S, Hamdi E, Vincke C, Farah A, Benlasfar Z, Majdoub H, El Ayeb M, Muyldermans S, Bouhaouala-Zahar B. Neutralizing Dromedary-Derived Nanobodies Against BotI-Like Toxin From the Most Hazardous Scorpion Venom in the Middle East and North Africa Region. Front Immunol 2022; 13:863012. [PMID: 35514999 PMCID: PMC9063451 DOI: 10.3389/fimmu.2022.863012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 01/28/2022] [Accepted: 03/16/2022] [Indexed: 01/18/2023] Open
Abstract
Scorpion envenoming is a severe health problem in many regions causing significant clinical toxic effects and fatalities. In the Middle East/North Africa (MENA) region, Buthidae scorpion stings are responsible for devastating toxic outcomes in human. The only available specific immunotherapeutic treatment is based on IgG fragments of animal origin. To overcome the limitations of classical immunotherapy, we have demonstrated the in vivo efficacy of NbF12-10 bispecific nanobody at preclinical level. Nanobodies were developed against BotI analogues belonging to a distinct structural and antigenic group of scorpion toxins, occurring in the MENA region. From Buthus occitanus tunetanus venom, BotI-like toxin was purified. The 41 N-terminal amino acid residues were sequenced, and the LD50 was estimated at 40 ng/mouse. The BotI-like toxin was used for dromedary immunization. An immune VHH library was constructed, and after screening, two nanobodies were selected with nanomolar and sub-nanomolar affinity and recognizing an overlapping epitope. NbBotI-01 was able to neutralize 50% of the lethal effect of 13 LD50 BotI-like toxins in mice when injected by i.c.v route, whereas NbBotI-17 neutralized 50% of the lethal effect of 7 LD50. Interestingly, NbBotI-01 completely reduced the lethal effect of the 2 LD50 of BotG50 when injected at 1:4 molar ratio excess. More interestingly, an equimolar mixture of NbBotI-01 with NbF12-10 neutralized completely the lethal effect of 7 and 5 LD50 of BotG50 or AahG50, at 1:4 and 1:2 molar ratio, respectively. Hence, NbBotI-01 and NbF12-10 display synergic effects, leading to a novel therapeutic candidate for treating Buthus occitanus scorpion stings in the MENA region.
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Affiliation(s)
- Rahma Ben Abderrazek
- Laboratoire des Biomolécules, Venins et Applications Théranostiques, Institut Pasteur Tunis, University Tunis El Manar, Tunis, Tunisia
| | - Ayoub Ksouri
- Laboratoire des Biomolécules, Venins et Applications Théranostiques, Institut Pasteur Tunis, University Tunis El Manar, Tunis, Tunisia
| | - Faten Idoudi
- Laboratoire des Biomolécules, Venins et Applications Théranostiques, Institut Pasteur Tunis, University Tunis El Manar, Tunis, Tunisia
| | - Sayda Dhaouadi
- Laboratoire des Biomolécules, Venins et Applications Théranostiques, Institut Pasteur Tunis, University Tunis El Manar, Tunis, Tunisia
| | - Emna Hamdi
- Laboratoire des Biomolécules, Venins et Applications Théranostiques, Institut Pasteur Tunis, University Tunis El Manar, Tunis, Tunisia
| | - Cécile Vincke
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium.,Myeloid Cell Immunology Lab, Vlaams Interuniversitair Instituut voor Biotechnologie (VIB) Center for Inflammation Research, Brussels, Belgium
| | - Azer Farah
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Zakaria Benlasfar
- Laboratoire des Biomolécules, Venins et Applications Théranostiques, Institut Pasteur Tunis, University Tunis El Manar, Tunis, Tunisia
| | - Hafedh Majdoub
- Unité des Services Communs de Recherche (USCR) Séquenceur de Protéines, Faculté des Sciences de Sfax, Sfax, Tunisia
| | - Mohamed El Ayeb
- Laboratoire des Biomolécules, Venins et Applications Théranostiques, Institut Pasteur Tunis, University Tunis El Manar, Tunis, Tunisia
| | - Serge Muyldermans
- Laboratory of Cellular and Molecular Immunology, Vrije Universiteit Brussel, Brussels, Belgium
| | - Balkiss Bouhaouala-Zahar
- Laboratoire des Biomolécules, Venins et Applications Théranostiques, Institut Pasteur Tunis, University Tunis El Manar, Tunis, Tunisia.,Unité des Services Communs de Recherche (USCR) Séquenceur de Protéines, Faculté des Sciences de Sfax, Sfax, Tunisia.,Faculté de Médecine de Tunis, Université Tunis El Manar, Tunis, Tunisia
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Zinoubi K, Majdoub H, Barhoumi H, Boufi S, Jaffrezic-Renault N. Determination of trace heavy metal ions by anodic stripping voltammetry using nanofibrillated cellulose modified electrode. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.05.039] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Jridi I, Catacchio I, Majdoub H, Villard C, Shahbazzadeh D, El Ayeb M, Vacca A, Borchani L. Purification and characterization of two novel Hemiscorpius lepturus scorpion venom-derived phospholipases A2 which inhibit angiogenesis in vitro. Toxicon 2016. [DOI: 10.1016/j.toxicon.2016.01.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Hafsa J, Smach MA, Charfeddine B, Limem K, Majdoub H, Rouatbi S. Antioxidant and antimicrobial proprieties of chitin and chitosan extracted from Parapenaeus Longirostris shrimp shell waste. Ann Pharm Fr 2015; 74:27-33. [PMID: 26687000 DOI: 10.1016/j.pharma.2015.07.005] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [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: 05/20/2015] [Revised: 07/13/2015] [Accepted: 07/20/2015] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Chitosan, the linear polymer, is produced by alkali deacetylation of chitin (CHI). Recently chitin and chitosan were attracted marked interest due to their biocompatibility, biodegradability and non-toxicity. MATERIALS AND METHODS In this study, chitin was extracted from shrimp shell (Parapenaeus longirostris) and chitosan was deacetylated by classical and ultrasound-assisted method. The identification of functional groups and the determination of degree of deacetylation of chitin (CHI), classical deacetylated chitosan (CDC) and ultrasound-assisted deacetylated chitosan (UDC) were carried through Fourier Transform-Infrared Spectroscopy. Their antimicrobial and antioxidant activity were also investigated. RESULTS The degree of deacetylation of CHI, CDC and UDC is 33.64%, 73.68% and 83.55%, respectively. Results showed that CHI, CDC and UDC exhibited a good antimicrobial activity against (S. aureus, E. coli, P. aeruginosa, K. pneumonia) and (C. albicans and C. parapsilosis). The scavenging ability of CHI, CDC and UDC on 1,1-diphenyl-2-picrylhydrazyl radicals is ranging from 4.71% to 21.25%, 11.45% to 32.78% and 18.27% to 44.17%, respectively, at the concentrations of 0.25 to 1mg/mL. The inhibition of lipid peroxidation with thiobarbituric acid-reacting substances is ranging from 11.7% to 51.63%, 17.24% to 63.52% and 29.31% to 77.39%, respectively, at varying concentrations of 0.25 to 1mg/mL. CONCLUSION The effectiveness of CHI, CDC and UDC is correlated with their degree of deacetylation. The results indicate the possibility of exploiting chitin and chitosan as antimicrobial agent.
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Affiliation(s)
- J Hafsa
- University of Sousse, Department of Biochemistry, Faculty of Medicine Sousse, 4002 Sousse, Tunisia.
| | - M A Smach
- University of Sousse, Department of Biochemistry, Faculty of Medicine Sousse, 4002 Sousse, Tunisia
| | - B Charfeddine
- University of Sousse, Department of Biochemistry, Faculty of Medicine Sousse, 4002 Sousse, Tunisia
| | - K Limem
- University of Sousse, Department of Biochemistry, Faculty of Medicine Sousse, 4002 Sousse, Tunisia
| | - H Majdoub
- University of Monastir, Laboratory of interfaces and advanced materials, Faculty of Monastir, Monastir 5000, Tunisia
| | - S Rouatbi
- University of Sousse, Department of Biochemistry, Faculty of Medicine Sousse, 4002 Sousse, Tunisia
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Abdelkafi-Koubaa Z, Jebali J, Othman H, Morjen M, Aissa I, Zouari-Kesentini R, Bazaa A, Ellefi AA, Majdoub H, Srairi-Abid N, Gargouri Y, El Ayeb M, Marrakchi N. A thermoactive l-amino acid oxidase from Cerastes cerastes snake venom: Purification, biochemical and molecular characterization. Toxicon 2014; 89:32-44. [DOI: 10.1016/j.toxicon.2014.06.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2014] [Revised: 06/14/2014] [Accepted: 06/25/2014] [Indexed: 11/28/2022]
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Jebali J, Fakhfekh E, Morgen M, Srairi-Abid N, Majdoub H, Gargouri A, El Ayeb M, Luis J, Marrakchi N, Sarray S. Lebecin, a new C-type lectin like protein from Macrovipera lebetina venom with anti-tumor activity against the breast cancer cell line MDA-MB231. Toxicon 2014; 86:16-27. [PMID: 24814013 DOI: 10.1016/j.toxicon.2014.04.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [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: 12/23/2013] [Revised: 04/15/2014] [Accepted: 04/29/2014] [Indexed: 01/20/2023]
Abstract
C-type lectins like proteins display various biological activities and are known to affect especially platelet aggregation. Few of them have been reported to have anti-tumor effects. In this study, we have identified and characterized a new C-type lectin like protein, named lebecin. Lebecin is a heterodimeric protein of 30 kDa. The N-terminal amino acid sequences of both subunits were determined by Edman degradation and the entire amino acid sequences were deduced from cDNAs. The precursors of both lebecin subunits contain a 23-amino acid residue signal peptide and the mature α and β subunits are composed of 129 and 131 amino acids, respectively. Lebecin is shown to be a potent inhibitor of MDA-MB231 human breast cancer cells proliferation. Furthermore, lebecin dose-dependently inhibited the integrin-mediated attachment of these cells to different adhesion substrata. This novel C-type lectin also completely blocked MDA-MB231 cells migration towards fibronectin and fibrinogen in haptotaxis assays.
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Affiliation(s)
- Jed Jebali
- Laboratoire des venins et biomolécules thérapeutiques, Institut Pasteur de Tunis, B.P. 74, 1002 Tunis Belvédère, Tunisia.
| | - Emna Fakhfekh
- Laboratoire des venins et biomolécules thérapeutiques, Institut Pasteur de Tunis, B.P. 74, 1002 Tunis Belvédère, Tunisia
| | - Maram Morgen
- Laboratoire des venins et biomolécules thérapeutiques, Institut Pasteur de Tunis, B.P. 74, 1002 Tunis Belvédère, Tunisia
| | - Najet Srairi-Abid
- Laboratoire des venins et biomolécules thérapeutiques, Institut Pasteur de Tunis, B.P. 74, 1002 Tunis Belvédère, Tunisia
| | - Hafedh Majdoub
- USCR séquenceur de protéines, Faculté des sciences de Sfax, Route de Soukra, km 3.5, BP 1171, 3000 Sfax, Tunisia
| | - Ali Gargouri
- Laboratoire de Valorisation de la Biomasse et Production de Protéines chez les Eucaryotes, Centre de la Biotechnologie de Sfax (CBS), Tunisia
| | - Mohamed El Ayeb
- Laboratoire des venins et biomolécules thérapeutiques, Institut Pasteur de Tunis, B.P. 74, 1002 Tunis Belvédère, Tunisia
| | - José Luis
- Aix Marseille Université, Institut National de la Santé et de la Recherche Médicale, UMR_S 911, Marseille, France
| | - Naziha Marrakchi
- Laboratoire des venins et biomolécules thérapeutiques, Institut Pasteur de Tunis, B.P. 74, 1002 Tunis Belvédère, Tunisia
| | - Sameh Sarray
- Laboratoire des venins et biomolécules thérapeutiques, Institut Pasteur de Tunis, B.P. 74, 1002 Tunis Belvédère, Tunisia; Faculté des Sciences de Tunis, Université de Tunis El Manar, 2092, Tunisia
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Kacem I, Majdoub H, Roudesli S. Physicochemical Properties of Pectin from Retama raetam Obtained using Sequential Extraction. ACTA ACUST UNITED AC 2008. [DOI: 10.3923/jas.2008.1713.1719] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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