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Silva MM, Campos TA, Cavalcanti IMF, Oliveira IS, Pérez CD, Silva RADA, Wanderley MSO, Santos NPS. Proteomic characterization and biological activities of the mucus produced by the zoanthid Palythoa caribaeorum (Duchassaing & Michelotti, 1860). AN ACAD BRAS CIENC 2023; 95:e20200325. [PMID: 38055606 DOI: 10.1590/0001-3765202320200325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 05/22/2020] [Indexed: 12/08/2023] Open
Abstract
Mucus, produced by Palythoa caribaeorum has been popularly reported due to healing, anti-inflammatory, and analgesic effects. However, biochemical and pharmacological properties of this mucus remains unexplored. Therefore, the present study aimed to study its proteome profile by 2DE electrophoresis and MALDI-TOF. Furthermore, it was evaluated the cytotoxic, antibacterial, and antioxidant activities of the mucus and from its protein extract (PE). Proteomics study identified14 proteins including proteins involved in the process of tissue regeneration and death of tumor cells. The PE exhibited cell viability below 50% in the MCF-7 and S-180 strains. It showed IC50 of 6.9 μg/mL for the J774 lineage, and also, favored the cellular growth of fibroblasts. Furthermore, PE revealed activity against Escherichia coli, Klebsiella pneumoniae, Staphylococcus aureus, and Staphylococcus epidermidis (MIC of 250 μg/mL). These findings revealed the mucus produced by Palythoa caribaeorum with biological activities, offering alternative therapies for the treatment of cancer and as a potential antibacterial agent.
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Affiliation(s)
- Marllyn M Silva
- Universidade Federal de Pernambuco, Centro Acadêmico de Vitória, Núcleo de Biologia, Rua Alto do Reservatório, s/n, Bela Vista, 55608-680 Vitória de Santo Antão, PE, Brazil
| | - Thiers A Campos
- Centro Tecnológico do Nordeste, Av. Prof. Luís Freire, 1, Cidade Universitária, 50740-545 Recife, PE, Brazil
| | - Isabella M F Cavalcanti
- Universidade Federal de Pernambuco, Centro Acadêmico de Vitória, Núcleo de Biologia, Rua Alto do Reservatório, s/n, Bela Vista, 55608-680 Vitória de Santo Antão, PE, Brazil
- Universidade Federal de Pernambuco, Instituto Keizo-Asami (iLIKA), Av. Prof. Moraes Rego, s/n, Cidade Universitária, 50670-901 Recife, PE, Brazil
| | - Idjane S Oliveira
- Universidade Federal de Pernambuco, Centro Acadêmico de Vitória, Núcleo de Biologia, Rua Alto do Reservatório, s/n, Bela Vista, 55608-680 Vitória de Santo Antão, PE, Brazil
| | - Carlos Daniel Pérez
- Universidade Federal de Pernambuco, Centro Acadêmico de Vitória, Núcleo de Biologia, Rua Alto do Reservatório, s/n, Bela Vista, 55608-680 Vitória de Santo Antão, PE, Brazil
| | - Roberto Afonso DA Silva
- Universidade Federal de Pernambuco, Instituto Keizo-Asami (iLIKA), Av. Prof. Moraes Rego, s/n, Cidade Universitária, 50670-901 Recife, PE, Brazil
| | - Marcela S O Wanderley
- Universidade de Pernambuco, Campus Santo Amaro, Instituto de Ciências Biológicas, Arnóbio Marques, 310, Santo Amaro, 50100-130 Recife, PE, Brazil
| | - Noemia P S Santos
- Universidade Federal de Pernambuco, Centro Acadêmico de Vitória, Núcleo de Biologia, Rua Alto do Reservatório, s/n, Bela Vista, 55608-680 Vitória de Santo Antão, PE, Brazil
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Janssen K, Mähler B, Rust J, Bierbaum G, McCoy VE. The complex role of microbial metabolic activity in fossilization. Biol Rev Camb Philos Soc 2021; 97:449-465. [PMID: 34649299 DOI: 10.1111/brv.12806] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 09/30/2021] [Accepted: 10/05/2021] [Indexed: 12/22/2022]
Abstract
Bacteria play an important role in the fossilization of soft tissues; their metabolic activities drive the destruction of the tissues and also strongly influence mineralization. Some environmental conditions, such as anoxia, cold temperatures, and high salinity, are considered widely to promote fossilization by modulating bacterial activity. However, bacteria are extremely diverse, and have developed metabolic adaptations to a wide range of stressful conditions. Therefore, the influence of the environment on bacterial activity, and of their metabolic activity on fossilization, is complex. A number of examples illustrate that simple, general assumptions about the role of bacteria in soft tissue fossilization cannot explain all preservational pathways: (i) experimental results show that soft tissues of cnidaria decay less in oxic than anoxic conditions, and in the fossil record are found more commonly in fossil sites deposited under oxic conditions rather than anoxic environments; (ii) siderite concretions, which often entomb soft tissue fossils, precipitate due to a complex mixture of sulfate- and iron reduction by some bacterial species, running counter to original theories that iron reduction is the primary driver of siderite concretion growth; (iii) arthropod brains, now widely accepted to be preserved in many Cambrian fossil sites, are one of the first structures to decay in taphonomic experiments, indicating that their fossilization processes are complex and influenced by bacterial activity. In order to expand our understanding of the complex process of bacterially driven soft tissue fossilization, more research needs to be done, on fossils themselves and in taphonomic experiments, to determine how the complex variation in microbial metabolic activity influences decay and mineralization.
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Affiliation(s)
- Kathrin Janssen
- Institute of Medical Microbiology, Immunology and Parasitology, Medical Faculty, Rheinische Friedrich-Wilhelms Universität, 53127, Bonn, Germany
| | - Bastian Mähler
- Paleontology Section, Institute of Geosciences, Rheinische Friedrich-Wilhelms Universität Bonn, 53115, Bonn, Germany
| | - Jes Rust
- Paleontology Section, Institute of Geosciences, Rheinische Friedrich-Wilhelms Universität Bonn, 53115, Bonn, Germany
| | - Gabriele Bierbaum
- Institute of Medical Microbiology, Immunology and Parasitology, Medical Faculty, Rheinische Friedrich-Wilhelms Universität, 53127, Bonn, Germany
| | - Victoria E McCoy
- Department of Geosciences, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin, 53211, U.S.A
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Identification and Characterization of ShSPI, a Kazal-Type Elastase Inhibitor from the Venom of Scolopendra Hainanum. Toxins (Basel) 2019; 11:toxins11120708. [PMID: 31817486 PMCID: PMC6950245 DOI: 10.3390/toxins11120708] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 11/26/2019] [Accepted: 12/03/2019] [Indexed: 12/16/2022] Open
Abstract
Elastase is a globular glycoprotein and belongs to the chymotrypsin family. It is involved in several inflammatory cascades on the basis of cleaving the important connective tissue protein elastin, and is strictly regulated to a balance by several endogenous inhibitors. When elastase and its inhibitors are out of balance, severe diseases will develop, especially those involved in the cardiopulmonary system. Much attention has been attracted in seeking innovative elastase inhibitors and various advancements have been taken on clinical trials of these inhibitors. Natural functional peptides from venomous animals have been shown to have anti-protease properties. Here, we identified a kazal-type serine protease inhibitor named ShSPI from the cDNA library of the venom glands of Scolopendra hainanum. ShSPI showed significant inhibitory effects on porcine pancreatic elastase and human neutrophils elastase with Ki values of 225.83 ± 20 nM and 12.61 ± 2 nM, respectively. Together, our results suggest that ShSPI may be an excellent candidate to develop a drug for cardiopulmonary diseases.
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