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Alonazi M, Karray A, Jallouli R, Ben Bacha A. Biochemical, Kinetic and Biological Properties of Group V Phospholipase A2 from Dromedary. Molecules 2022; 27:molecules27113437. [PMID: 35684381 PMCID: PMC9182273 DOI: 10.3390/molecules27113437] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/19/2022] [Accepted: 05/23/2022] [Indexed: 11/16/2022]
Abstract
Secretory group V phospholipase A2 (PLA2-V) is known to be involved in inflammatory processes in cellular studies, nevertheless, the biochemical and the enzymatic characteristics of this important enzyme have been unclear yet. We reported, as a first step towards understanding the biochemical properties, catalytic characteristics, antimicrobial and cytotoxic effects of this PLA2, the production of PLA2-V from dromedary. The obtained DrPLA2-V has an absolute requirement for Ca2+ and NaTDC for enzymatic activity with an optimum pH of 9 and temperature of 45 °C with phosphatidylethanolamine as a substrate. Kinetic parameters showed that Kcat/Kmapp is 2.6 ± 0.02 mM−1 s−1. The enzyme was found to display potent Gram-positive bactericidal activity (with IC50 values of about 5 µg/mL) and antifungal activity (with IC50 values of about 25 µg/mL)in vitro. However, the purified enzyme did not display a cytotoxic effect against cancer cells.
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Affiliation(s)
- Mona Alonazi
- Biochemistry Department, Science College, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia;
| | - Aida Karray
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS Route de Soukra, Université de Sfax-Tunisia, Sfax 3038, Tunisia;
| | - Raida Jallouli
- Institut de Pharmacologie de Sherbrooke, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada;
| | - Abir Ben Bacha
- Biochemistry Department, Science College, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia;
- Laboratory of Plant Biotechnology Applied to Crop Improvement, Faculty of Science of Sfax, University of Sfax, Sfax 3038, Tunisia
- Correspondence: ; Tel.: +966-504-784-639
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Smichi N, Othman H, Zarai Z, Fendri A, Abousalham A. -Identification of a novel intestinal phospholipase A2 from annular seabream: Insights into its catalytic mechanism and its role in biological processes. Process Biochem 2020. [DOI: 10.1016/j.procbio.2019.12.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Smichi N, Parsiegla G, Achouri N, Zarai Z, Abousalham A, Fendri A. Intestinal phospholipase A 2 from Sparidae species: Functional properties and cytotoxic potential evaluation. Int J Biol Macromol 2020; 143:881-890. [PMID: 31739040 DOI: 10.1016/j.ijbiomac.2019.09.149] [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: 07/11/2019] [Revised: 09/23/2019] [Accepted: 09/24/2019] [Indexed: 11/28/2022]
Abstract
Marine species have gained significant attention as potential source for a broad spectrum of bioactive proteins. Fish phospholipases A2 (PLA2) have attracted renewed interest due to their excellent properties in lipid digestion. Herein, we report for the first time the catalytic properties of two intestinal secreted PLA2 (sPLA2) identified from Diplodus sargus (IDsPLA2) and Sparus aurata (ISaPLA2). The highest sequence identity was obtained with recently isolated Sparidae digestive PLA2 (45%) and Human pancreatic PLA2 (42%). IDsPLA2 and ISaPLA2 were overexpressed in E. coli as inclusion bodies, refolded and purified. Both enzymes have improved thermostability compared to mammalian pancreatic sPLA2 since they are active and stable at 55 °C, with specific activities of 320 and 190 U mg-1 measured on phosphatidylcholine, respectively. Interestingly, IDsPLA2, but not ISaPLA2, revealed weak toxicity towards macrophages and suggests its involvement in cell membrane degradation. ISaPLA2 was found to be more active than IDsPLA2 when using the monolayer technique at 20 mN m-1. Structural models of both enzymes revealed their differences. In silico docking of phospholipids with both models allowed proposing key amino-acids in substrate binding and selectivity. Overall, these results provide insight into the enzymatic and structural properties of two novel sPLA2 with potential for future applications.
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Affiliation(s)
- Nabil Smichi
- University of Sfax, Laboratory of Biochemistry and Enzymatic Engineering of Lipases, ENIS, BP 3038 Sfax, Tunisia.
| | - Goetz Parsiegla
- Aix-Marseille Université, CNRS, Bioénergétique et Ingénierie des Protéines UMR 7281, 31 Chemin Joseph Aiguier, 13402 Marseille Cedex 20, France
| | - Neila Achouri
- University of Sfax, Laboratory of Biochemistry and Enzymatic Engineering of Lipases, ENIS, BP 3038 Sfax, Tunisia
| | - Zied Zarai
- University of Sfax, Laboratory of Biochemistry and Enzymatic Engineering of Lipases, ENIS, BP 3038 Sfax, Tunisia
| | - Abdelkarim Abousalham
- Univ Lyon, Université Lyon 1, Institut de Chimie et de Biochimie Moléculaires et Supramoléculaires, UMR 5246, Métabolisme, Enzymes et Mécanismes Moléculaires (MEM2), 43, Bd du 11 novembre 1918, F-69622 Villeurbanne Cedex, France
| | - Ahmed Fendri
- University of Sfax, Laboratory of Biochemistry and Enzymatic Engineering of Lipases, ENIS, BP 3038 Sfax, Tunisia
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Silva F, Huang Y, Yang V, Mu X, Shi Q, Antunes A. Transcriptomic Characterization of the South American Freshwater Stingray Potamotrygon motoro Venom Apparatus. Toxins (Basel) 2018; 10:toxins10120544. [PMID: 30567320 PMCID: PMC6315956 DOI: 10.3390/toxins10120544] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 12/14/2018] [Accepted: 12/14/2018] [Indexed: 01/16/2023] Open
Abstract
Venomous animals are found through a wide taxonomic range including cartilaginous fish such as the freshwater stingray Potamotrygon motoro occurring in South America, which can injure people and cause venom-related symptoms. Ensuring the efficacy of drug development to treat stingray injuries can be assisted by the knowledge of the venom composition. Here we performed a detailed transcriptomic characterization of the venom gland of the South American freshwater stingray Potamotrygon motoro. The transcripts retrieved showed 418 hits to venom components (comparably to 426 and 396 hits in other two Potamotrygon species), with high expression levels of hyaluronidase, cystatin and calglandulin along with hits uniquely found in P. motoro such as DELTA-alicitoxin-Pse1b, Augerpeptide hhe53 and PI-actitoxin-Aeq3a. We also identified undescribed molecules with extremely high expression values with sequence similarity to the SE-cephalotoxin and Rapunzel genes. Comparative analyses showed that despite being closely related, there may be significant variation among the venoms of freshwater stingrays, highlighting the importance of considering elicit care in handling different envenomation cases. Since hyaluronidase represents a major component of fish venom, we have performed phylogenetic and selective pressure analyses of this gene/protein across all fish with the available information. Results indicated an independent recruitment of the hyaluronidase into the stingray venom relative to that of venomous bony fish. The hyaluronidase residues were found to be mostly under negative selection, but 18 sites showed evidence of diversifying positive selection (P < 0.05). Our data provides new insight into stingray venom variation, composition, and selective pressure in hyaluronidase.
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Affiliation(s)
- Filipe Silva
- CIIMAR/CIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Av. General Norton de Matos, s/n, 4450-208 Porto, Portugal.
- Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal.
| | - Yu Huang
- Shenzhen Key Lab of Marine Genomics, Guangdong Provincial Key Lab of Molecular Breeding in Marine Economic Animals, BGI Academy of Marine Sciences, Shenzhen 518083, China.
- BGI Education Center, University of Chinese Academy of Sciences, Shenzhen 518083, China.
| | - Vítor Yang
- CIIMAR/CIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Av. General Norton de Matos, s/n, 4450-208 Porto, Portugal.
- Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal.
| | - Xidong Mu
- Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Key Laboratory of Recreational Fisheries, Ministry of Agriculture, Guangdong Engineering Technology Research Center for Advanced Recreational Fisheries, Guangzhou 510380, China.
| | - Qiong Shi
- Shenzhen Key Lab of Marine Genomics, Guangdong Provincial Key Lab of Molecular Breeding in Marine Economic Animals, BGI Academy of Marine Sciences, Shenzhen 518083, China.
- BGI Education Center, University of Chinese Academy of Sciences, Shenzhen 518083, China.
| | - Agostinho Antunes
- CIIMAR/CIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Av. General Norton de Matos, s/n, 4450-208 Porto, Portugal.
- Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal.
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Smichi N, Othman H, Achouri N, Noiriel A, Triki S, Arondel V, Srairi-abid N, Abousalham A, Gargouri Y, Miled N, Fendri A. Efficient heterologous expression, functional characterization and molecular modeling of annular seabream digestive phospholipase A2. Chem Phys Lipids 2018; 211:16-29. [DOI: 10.1016/j.chemphyslip.2017.06.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Karray A, Bou Ali M, Kharrat N, Gargouri Y, Bezzine S. Antibacterial, antifungal and anticoagulant activities of chicken PLA2 group V expressed in Pichia pastoris. Int J Biol Macromol 2017; 108:127-134. [PMID: 29129630 DOI: 10.1016/j.ijbiomac.2017.11.045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 01/29/2017] [Revised: 11/07/2017] [Accepted: 11/08/2017] [Indexed: 02/02/2023]
Abstract
Secretory class V phospholipase A2 (PLA2-V) has been shown to be involved in inflammatory processes in cellular studies, but the biochemical and physical properties of this important enzyme have been unclear. As a first step towards understanding the structure, function and regulation of this PLA2, we report the expression and characterization of PLA2-V from chicken (ChPLA2-V). The ChPLA2-V cDNA was synthesized from chicken heart polyA mRNA by RT-PCR, and an expression construct containing the PLA2 was established. After expression in Pichia pastoris cells, the active enzyme was purified. The purified ChPLA2-V protein was biochemically and physiologically characterized. The recombinant ChPLA2-V has an absolute requirement for Ca2+ for enzymatic activity. The optimum pH for this enzyme is pH 8.5 in Tris-HCl buffer with phosphatidylcholine as substrate. ChPLA2-V was found to display potent Gram-positive and Gram-negative bactericidal activity and antifungal activity in vitro. The purified enzyme ChPLA2-V with much stronger anticoagulant activity compared with the intestinal and pancreatic chicken PLA2-V was approximately 10 times more active. Chicken group V PLA2, like mammal one, may be considered as a future therapeutic agents against fungal and bacterial infections and as an anticoagulant agent.
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Affiliation(s)
- Aida Karray
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS Route de Soukra, université de Sfax, Tunisia
| | - Madiha Bou Ali
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS Route de Soukra, université de Sfax, Tunisia
| | - Nedia Kharrat
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS Route de Soukra, université de Sfax, Tunisia
| | - Youssef Gargouri
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS Route de Soukra, université de Sfax, Tunisia
| | - Sofiane Bezzine
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS Route de Soukra, université de Sfax, Tunisia.
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Fuochi V, Li Volti G, Camiolo G, Tiralongo F, Giallongo C, Distefano A, Petronio Petronio G, Barbagallo I, Viola M, Furneri PM, Di Rosa M, Avola R, Tibullo D. Antimicrobial and Anti-Proliferative Effects of Skin Mucus Derived from Dasyatis pastinaca (Linnaeus, 1758). Mar Drugs 2017; 15:md15110342. [PMID: 29104260 PMCID: PMC5706032 DOI: 10.3390/md15110342] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 10/09/2017] [Accepted: 10/25/2017] [Indexed: 12/30/2022] Open
Abstract
Resistance to chemotherapy occurs in various diseases (i.e., cancer and infection), and for this reason, both are very difficult to treat. Therefore, novel antimicrobial and chemotherapic drugs are needed for effective antibiotic therapy. The aim of the present study was to assess the antimicrobial and anti-proliferative effects of skin mucus derived from Dasyatis pastinaca (Linnaeus, 1758). Our results showed that skin mucus exhibited a significant and specific antibacterial activity against Gram-negative bacteria but not against Gram-positive bacteria. Furthermore, we also observed a significant antifungal activity against some strains of Candida spp. Concerning anti-proliferative activity, we showed that fish mucus was specifically toxic for acute leukemia cells (HL60) with an inhibition of proliferation in a dose dependent manner (about 52% at 1000 μg/mL of fish skin mucous, FSM). Moreover, we did not observe effects in healthy cells, in neuroblastoma cells (SH-SY5Y), and multiple myeloma cell lines (MM1, U266). Finally, it exhibited strong expression and activity of chitinase which may be responsible, at least in part, for the aforementioned results.
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Affiliation(s)
- Virginia Fuochi
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95124, Italy.
| | - Giovanni Li Volti
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95124, Italy.
| | - Giuseppina Camiolo
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95124, Italy.
| | | | - Cesarina Giallongo
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95124, Italy.
| | - Alfio Distefano
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95124, Italy.
| | - Giulio Petronio Petronio
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95124, Italy.
| | - Ignazio Barbagallo
- Department of Drug Sciences, University of Catania, Catania 95125, Italy.
| | - Maria Viola
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95124, Italy.
| | - Pio Maria Furneri
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95124, Italy.
| | - Michelino Di Rosa
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95124, Italy.
| | - Roberto Avola
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95124, Italy.
| | - Daniele Tibullo
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95124, Italy.
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de Oliveira Júnior NG, Fernandes Gda R, Cardoso MH, Costa FF, Cândido Ede S, Garrone Neto D, Mortari MR, Schwartz EF, Franco OL, de Alencar SA. Venom gland transcriptome analyses of two freshwater stingrays (Myliobatiformes: Potamotrygonidae) from Brazil. Sci Rep 2016; 6:21935. [PMID: 26916342 DOI: 10.1038/srep21935] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Accepted: 02/03/2016] [Indexed: 01/17/2023] Open
Abstract
Stingrays commonly cause human envenoming related accidents in populations of the sea, near rivers and lakes. Transcriptomic profiles have been used to elucidate components of animal venom, since they are capable of providing molecular information on the biology of the animal and could have biomedical applications. In this study, we elucidated the transcriptomic profile of the venom glands from two different freshwater stingray species that are endemic to the Paraná-Paraguay basin in Brazil, Potamotrygon amandae and Potamotrygon falkneri. Using RNA-Seq, we identified species-specific transcripts and overlapping proteins in the venom gland of both species. Among the transcripts related with envenoming, high abundance of hyaluronidases was observed in both species. In addition, we built three-dimensional homology models based on several venom transcripts identified. Our study represents a significant improvement in the information about the venoms employed by these two species and their molecular characteristics. Moreover, the information generated by our group helps in a better understanding of the biology of freshwater cartilaginous fishes and offers clues for the development of clinical treatments for stingray envenoming in Brazil and around the world. Finally, our results might have biomedical implications in developing treatments for complex diseases.
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Bacha AB. Anti-bactericidal properties of stingray Dasyatis pastinaca groups V, IIA, and IB phospholipases A2: a comparative study. Appl Biochem Biotechnol 2014; 174:1520-1534. [PMID: 25119545 DOI: 10.1007/s12010-014-1069-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2013] [Accepted: 07/21/2014] [Indexed: 11/25/2022]
Abstract
Group IIA secreted phospholipase A2 (group IIA sPLA2) is known to display potent Gram-positive bactericidal activity in vitro and in vivo. We have analyzed the bactericidal activity of the full set of native stingray and dromedary groups V, IIA, and IB sPLA2s on several Gram-positive and Gram-negative strains. The rank order potency among both marine and mammal sPLA2s against Gram-positive bacteria is group IIA > V > IB, whereas Gram-negative bacteria exhibited a much higher resistance. There is a synergic action of the sPLA2 with lysozyme when added to the bacteria culture prior to sPLA2.The bactericidal efficiency of groups V and IIA sPLA2s was shown to be dependent upon the presence of calcium ions and to a less extent Mg(2+) ions and then a correlation could be made to its hydrolytic activity of membrane phospholipids. Importantly, we showed that stingray and dromedary groups V, IIA, and IB sPLA2s present no cytotoxicity after their incubation with MDA-MB-231cells. stingray groups V and IIA sPLA2s, like mammal ones, may be considered as future therapeutic agents against bacterial infections.
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Affiliation(s)
- Abir Ben Bacha
- Biochemistry Department, Science College, King Saud University, P.O Box 22452, Riyadh, 11495, Saudi Arabia. .,Laboratory of Plant Biotechnology Applied to Crop Improvement, Faculty of Science of Sfax, University of Sfax, Sfax, 3038, Tunisia.
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