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Gou M, Duan X, Li J, Wang Y, Li Q, Pang Y, Dong Y. Spatial Metabolomics Reveals the Multifaceted Nature of Lamprey Buccal Gland and Its Diverse Mechanisms for Blood-Feeding. Commun Biol 2023; 6:881. [PMID: 37640823 PMCID: PMC10462737 DOI: 10.1038/s42003-023-05250-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Accepted: 08/16/2023] [Indexed: 08/31/2023] Open
Abstract
Lampreys are blood-sucking vampires in marine environments. From a survival perspective, it is expected that the lamprey buccal gland exhibits a repository of pharmacologically active components to modulate the host's homeostasis, inflammatory and immune responses. By analyzing the metabolic profiles of 14 different lamprey tissues, we show that two groups of metabolites in the buccal gland of lampreys, prostaglandins and the kynurenine pathway metabolites, can be injected into the host fish to assist lamprey blood feeding. Prostaglandins are well-known blood-sucking-associated metabolites that act as vasodilators and anticoagulants to maintain vascular homeostasis and are involved in inflammatory responses. The vasomotor reactivity test on catfish aortic ring showed that kynurenine can also relax the blood vessels of the host fish, thus improving the blood flow of the host fish at the bite site. Finally, a lamprey spatial metabolomics database ( https://www.lampreydb.com ) was constructed to assist studies using lampreys as animal model.
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Affiliation(s)
- Meng Gou
- College of Life Science, Liaoning Normal University, Dalian, 116081, China
- Lamprey Research Center, Liaoning Normal University, Dalian, 116081, China
| | - Xuyuan Duan
- College of Life Science, Liaoning Normal University, Dalian, 116081, China
- Lamprey Research Center, Liaoning Normal University, Dalian, 116081, China
| | - Jun Li
- College of Life Science, Liaoning Normal University, Dalian, 116081, China
- Lamprey Research Center, Liaoning Normal University, Dalian, 116081, China
| | - Yaocen Wang
- College of Life Science, Liaoning Normal University, Dalian, 116081, China
- Lamprey Research Center, Liaoning Normal University, Dalian, 116081, China
| | - Qingwei Li
- College of Life Science, Liaoning Normal University, Dalian, 116081, China
- Lamprey Research Center, Liaoning Normal University, Dalian, 116081, China
| | - Yue Pang
- College of Life Science, Liaoning Normal University, Dalian, 116081, China.
- Lamprey Research Center, Liaoning Normal University, Dalian, 116081, China.
| | - Yonghui Dong
- Life Sciences Core Facilities, Weizmann Institute of Science, Rehovot, 7610001, Israel.
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Wang Y, Sun F, Wang Z, Duan X, Li Q, Pang Y, Gou M. Peptidomics Analysis Reveals the Buccal Gland of Jawless Vertebrate Lamprey as a Source of Multiple Bioactive Peptides. Mar Drugs 2023; 21:389. [PMID: 37504920 PMCID: PMC10381800 DOI: 10.3390/md21070389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 06/22/2023] [Accepted: 06/28/2023] [Indexed: 07/29/2023] Open
Abstract
Various proteins with antibacterial, anticoagulant, and anti-inflammatory properties have been identified in the buccal glands of jawless blood-sucking vertebrate lampreys. However, studies on endogenous peptides in the buccal gland of lampreys are limited. In this study, 4528 endogenous peptides were identified from 1224 precursor proteins using peptidomics and screened for bioactivity in the buccal glands of the lamprey, Lethenteron camtschaticum. We synthesized four candidate bioactive peptides (VSLNLPYSVVRGEQFVVQA, DIPVPEVPILE, VVQLPPVVLGTFG, and VPPPPLVLPPASVK), calculated their secondary structures, and validated their bioactivity. The results showed that the peptide VSLNLPYSVVRGEQFVVQA possessed anti-inflammatory activity, which significantly increased the expression of anti-inflammatory factors and decreased the expression of inflammatory factors in THP-1 cells. The peptide VVQLPPVVLGTFG showed antibacterial activity against some gram-positive bacteria. The peptide VSLNLPYSVVRGEQFVQA possessed good ACE inhibitory activity at low concentrations, but no dose-related correlation was observed. Our study revealed that the buccal glands of the jawless vertebrate lamprey are a source of multiple bioactive peptides, which will provide new insights into the blood-sucking mechanism of lamprey.
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Affiliation(s)
- Yaocen Wang
- College of Life Science, Liaoning Normal University, Dalian 116081, China
- Lamprey Research Center, Liaoning Normal University, Dalian 116081, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
| | - Feng Sun
- College of Life Science, Liaoning Normal University, Dalian 116081, China
- Lamprey Research Center, Liaoning Normal University, Dalian 116081, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
| | - Zhuoying Wang
- College of Life Science, Liaoning Normal University, Dalian 116081, China
- Lamprey Research Center, Liaoning Normal University, Dalian 116081, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
| | - Xuyuan Duan
- College of Life Science, Liaoning Normal University, Dalian 116081, China
- Lamprey Research Center, Liaoning Normal University, Dalian 116081, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
| | - Qingwei Li
- College of Life Science, Liaoning Normal University, Dalian 116081, China
- Lamprey Research Center, Liaoning Normal University, Dalian 116081, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
| | - Yue Pang
- College of Life Science, Liaoning Normal University, Dalian 116081, China
- Lamprey Research Center, Liaoning Normal University, Dalian 116081, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
| | - Meng Gou
- College of Life Science, Liaoning Normal University, Dalian 116081, China
- Lamprey Research Center, Liaoning Normal University, Dalian 116081, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian 116034, China
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Lukas P, Melikian G, Hildebrandt JP, Müller C. Make it double: identification and characterization of a Tandem-Hirudin from the Asian medicinal leech Hirudinaria manillensis. Parasitol Res 2022; 121:2995-3006. [PMID: 36006484 PMCID: PMC9464118 DOI: 10.1007/s00436-022-07634-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 08/19/2022] [Indexed: 11/30/2022]
Abstract
Haematophagous leeches express a broad variety of secretory proteins in their salivary glands, among them are hirudins and hirudin-like factors. Here, we describe the identification, molecular and initial functional characterization of Tandem-Hirudin (TH), a novel salivary gland derived factor identified in the Asian medicinal leech, Hirudinaria manillensis. In contrast to the typical structure of hirudins, TH comprises two globular domains arranged in a tandem-like orientation and lacks the elongated C-terminal tail. Similar structures of thrombin inhibitors have so far been identified only in kissing bugs and ticks. Expression of TH was performed in both cell-based and cell-free bacterial systems. A subsequent functional characterization revealed no evidence for a thrombin-inhibitory potency of TH.
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Affiliation(s)
- Phil Lukas
- Animal Physiology, Zoological Institute and Museum, University of Greifswald, Felix-Hausdorff-Str. 1, D-17489, Greifswald, Germany
| | - Georgij Melikian
- Animal Physiology, Zoological Institute and Museum, University of Greifswald, Felix-Hausdorff-Str. 1, D-17489, Greifswald, Germany
| | - Jan-Peter Hildebrandt
- Animal Physiology, Zoological Institute and Museum, University of Greifswald, Felix-Hausdorff-Str. 1, D-17489, Greifswald, Germany
| | - Christian Müller
- Animal Physiology, Zoological Institute and Museum, University of Greifswald, Felix-Hausdorff-Str. 1, D-17489, Greifswald, Germany.
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Ahmed F, Kumar G, Soliman FM, Adly MA, Soliman HAM, El-Matbouli M, Saleh M. Proteomics for understanding pathogenesis, immune modulation and host pathogen interactions in aquaculture. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2019; 32:100625. [PMID: 31639560 DOI: 10.1016/j.cbd.2019.100625] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 09/06/2019] [Accepted: 09/09/2019] [Indexed: 12/13/2022]
Abstract
Proteomic analyses techniques are considered strong tools for identifying and quantifying the protein contents in different organisms, organs and secretions. In fish biotechnology, the proteomic analyses have been used for wide range of applications such as identification of immune related proteins during infections and stresses. The proteomic approach has a significant role in understanding pathogen surviving strategies, host defence responses and subsequently, the fish pathogen interactions. Proteomic analyses were employed to highlight the virulence related proteins secreted by the pathogens to invade the fish host's defence barriers and to monitor the kinetics of protein contents of different fish organs in response to infections. The immune related proteins of fish and the virulence related proteins of pathogens are up or down regulated according to their functions in defence or pathogenesis. Therefore, the proteomic analyses are useful in understanding the virulence mechanisms of microorganisms and the fish pathogen interactions thereby supporting the development of new effective therapies. In this review, we focus and summarise the recent proteomic profiling studies exploring pathogen virulence activities and fish immune responses to stressors and infections.
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Affiliation(s)
- Fatma Ahmed
- Clinical Division of Fish Medicine, University of Veterinary Medicine, Vienna, Austria; Department of Zoology, Faculty of Science, Sohag University, Sohag, Egypt
| | - Gokhlesh Kumar
- Clinical Division of Fish Medicine, University of Veterinary Medicine, Vienna, Austria
| | - Faiza M Soliman
- Department of Zoology, Faculty of Science, Sohag University, Sohag, Egypt
| | - Mohamed A Adly
- Department of Zoology, Faculty of Science, Sohag University, Sohag, Egypt
| | - Hamdy A M Soliman
- Department of Zoology, Faculty of Science, Sohag University, Sohag, Egypt
| | - Mansour El-Matbouli
- Clinical Division of Fish Medicine, University of Veterinary Medicine, Vienna, Austria
| | - Mona Saleh
- Clinical Division of Fish Medicine, University of Veterinary Medicine, Vienna, Austria.
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Harris RJ, Jenner RA. Evolutionary Ecology of Fish Venom: Adaptations and Consequences of Evolving a Venom System. Toxins (Basel) 2019; 11:E60. [PMID: 30678265 PMCID: PMC6409815 DOI: 10.3390/toxins11020060] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 01/14/2019] [Accepted: 01/18/2019] [Indexed: 01/21/2023] Open
Abstract
Research on venomous animals has mainly focused on the molecular, biochemical, and pharmacological aspects of venom toxins. However, it is the relatively neglected broader study of evolutionary ecology that is crucial for understanding the biological relevance of venom systems. As fish have convergently evolved venom systems multiple times, it makes them ideal organisms to investigate the evolutionary ecology of venom on a broader scale. This review outlines what is known about how fish venom systems evolved as a result of natural enemy interactions and about the ecological consequences of evolving a venom system. This review will show how research on the evolutionary ecology of venom in fish can aid in understanding the evolutionary ecology of animal venoms more generally. Further, understanding these broad ecological questions can shed more light on the other areas of toxinology, with applications across multiple disciplinary fields.
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Affiliation(s)
- Richard J Harris
- Venom Evolution Lab, School of Biological Sciences, The University of Queensland, St Lucia, Brisbane, Queensland 4072, Australia.
| | - Ronald A Jenner
- Department of Life Sciences, the Natural History Museum, Cromwell Road, SW7 5BD London, UK.
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The Anti-Angiogenic Activity of a Cystatin F Homologue from the Buccal Glands of Lampetra morii. Mar Drugs 2018; 16:md16120477. [PMID: 30501116 PMCID: PMC6316161 DOI: 10.3390/md16120477] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 11/27/2018] [Indexed: 12/20/2022] Open
Abstract
Cystatins are a family of cysteine protease inhibitors which are associated with a variety of physiological and pathological processes in vivo. In the present study, the cDNA sequence of a cystatin F homologue called Lm-cystatin F was cloned from the buccal glands of Lampetra morii. Although Lm-cystatin F shares a lower homology with cystatin superfamily members, it is also composed of a signal peptide and three highly conserved motifs, including the G in the N-terminal, QXVXG, as well as the PW in the C-terminal of the sequence. After sequence optimization and recombination, the recombinant protein was expressed as a soluble protein in Escherichia coli with a molecular weight of 19.85 kDa. Through affinity chromatography and mass spectrometry analysis, the purified protein was identified as a recombinant Lm-cystatin F (rLm-cystatin F). Additionally, rLm-cystatin F could inhibit the activity of papain. Based on MTT assay, rLm-cystatin F inhibited the proliferation of human umbilical vein endothelial cells (HUVECs) dose dependently with an IC50 of 5 μM. In vitro studies show that rLm-cystatin F suppressed the adhesion, migration, invasion, and tube formation of HUVECs, suggesting that rLm-cystatin F possesses anti-angiogenic activity, which provides information on the feeding mechanisms of Lampetra morii and insights into the application of rLm-cystatin F as a potential drug in the future.
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