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Ye Q, Xie J, Xiao H, Wang J, Tian W, Wang W, Zhang J, Chang Y, Wang L, Yin D, Ding J, Han B. Effects of Selenium, Iron, and Zinc Enrichment on Cultured Sea Cucumber (Apostichopus Japonicus). Biol Trace Elem Res 2024:10.1007/s12011-024-04352-9. [PMID: 39340597 DOI: 10.1007/s12011-024-04352-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Accepted: 08/18/2024] [Indexed: 09/30/2024]
Abstract
Selenium, iron, and zinc (Se, Fe, Zn) are essential trace elements crucial for animal growth, development, and immune protection, but they can be detrimental in excess. This study evaluates the impacts of Se, Fe and Zn on Apostichopus japonicus over a period of nine days, utilizing concentrations ranging from low to high: Se (0.20 µmol/L and 0.82 µmol/L), Fe (4.74 µmol/L and 18.96 µmol/L), Zn (1.88 µmol/L and 7.51 µmol/L). Concentrations of these trace elements in sea cucumbers increased with exposure time. Activities of CAT, SOD, and GSH-PX enzymes were enhanced. Transcriptomic analyses of sea cucumber body wall revealed significant gene expression changes, with differentially expressed genes (DEGs) numbering 294 at high and 945 at low Se concentrations, 906 at high and 210 at low Fe concentrations, and 423 at high and 123 at low Zn concentrations. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses highlighted DEGs enrichment in critical metabolic and immune-related pathways, including DNA replication, arachidonic acid metabolism, and oxidative phosphorylation. These results suggest that energy metabolism and immune regulation are pivotal in managing these elements, potentially enhancing sea cucumber immunity. This study enhances our comprehension of the physiological responses of sea cucumbers to trace elements and provides a theoretical basis for their use in aquaculture.
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Affiliation(s)
- Qi Ye
- Liaoning Provincial Key Laboratory of Northern Aquatic Germplasm Resources and Genetics and Breeding, Dalian Ocean University, Dalian, 116023, Liaoning, PR China
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, 52 Heishijiao Rd., Dalian, 116023, Liaoning, PR China
| | - Jiahui Xie
- Liaoning Provincial Key Laboratory of Northern Aquatic Germplasm Resources and Genetics and Breeding, Dalian Ocean University, Dalian, 116023, Liaoning, PR China
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, 52 Heishijiao Rd., Dalian, 116023, Liaoning, PR China
| | - Haoran Xiao
- Liaoning Provincial Key Laboratory of Northern Aquatic Germplasm Resources and Genetics and Breeding, Dalian Ocean University, Dalian, 116023, Liaoning, PR China
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, 52 Heishijiao Rd., Dalian, 116023, Liaoning, PR China
| | - Junhui Wang
- Liaoning Provincial Key Laboratory of Northern Aquatic Germplasm Resources and Genetics and Breeding, Dalian Ocean University, Dalian, 116023, Liaoning, PR China
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, 52 Heishijiao Rd., Dalian, 116023, Liaoning, PR China
| | - Wanrong Tian
- Liaoning Provincial Key Laboratory of Northern Aquatic Germplasm Resources and Genetics and Breeding, Dalian Ocean University, Dalian, 116023, Liaoning, PR China
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, 52 Heishijiao Rd., Dalian, 116023, Liaoning, PR China
| | - Wenpei Wang
- Liaoning Provincial Key Laboratory of Northern Aquatic Germplasm Resources and Genetics and Breeding, Dalian Ocean University, Dalian, 116023, Liaoning, PR China
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, 52 Heishijiao Rd., Dalian, 116023, Liaoning, PR China
| | - Jinyuan Zhang
- Liaoning Provincial Key Laboratory of Northern Aquatic Germplasm Resources and Genetics and Breeding, Dalian Ocean University, Dalian, 116023, Liaoning, PR China
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, 52 Heishijiao Rd., Dalian, 116023, Liaoning, PR China
| | - Yaqing Chang
- Liaoning Provincial Key Laboratory of Northern Aquatic Germplasm Resources and Genetics and Breeding, Dalian Ocean University, Dalian, 116023, Liaoning, PR China
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, 52 Heishijiao Rd., Dalian, 116023, Liaoning, PR China
| | - Luo Wang
- Liaoning Provincial Key Laboratory of Northern Aquatic Germplasm Resources and Genetics and Breeding, Dalian Ocean University, Dalian, 116023, Liaoning, PR China
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, 52 Heishijiao Rd., Dalian, 116023, Liaoning, PR China
| | - Donghong Yin
- Liaoning Provincial Key Laboratory of Northern Aquatic Germplasm Resources and Genetics and Breeding, Dalian Ocean University, Dalian, 116023, Liaoning, PR China
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, 52 Heishijiao Rd., Dalian, 116023, Liaoning, PR China
| | - Jun Ding
- Liaoning Provincial Key Laboratory of Northern Aquatic Germplasm Resources and Genetics and Breeding, Dalian Ocean University, Dalian, 116023, Liaoning, PR China.
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, 52 Heishijiao Rd., Dalian, 116023, Liaoning, PR China.
| | - Bing Han
- Liaoning Provincial Key Laboratory of Northern Aquatic Germplasm Resources and Genetics and Breeding, Dalian Ocean University, Dalian, 116023, Liaoning, PR China.
- Key Laboratory of Mariculture & Stock Enhancement in North China's Sea, Ministry of Agriculture and Rural Affairs, Dalian Ocean University, 52 Heishijiao Rd., Dalian, 116023, Liaoning, PR China.
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Rodriguez C, Ibáñez R, Rollins-Smith LA, Gutiérrez M, Durant-Archibold AA. Antimicrobial Secretions of Toads (Anura, Bufonidae): Bioactive Extracts and Isolated Compounds against Human Pathogens. Antibiotics (Basel) 2020; 9:antibiotics9120843. [PMID: 33255881 PMCID: PMC7761505 DOI: 10.3390/antibiotics9120843] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 11/20/2020] [Accepted: 11/23/2020] [Indexed: 11/20/2022] Open
Abstract
Species of the family Bufonidae, better known as true toads, are widespread and produce bioactive substances in the secretions obtained from specialized skin macroglands. Some true toads have been employed as a folk remedy to treat infectious diseases caused by microbial pathogens. Recent publications based on in silico analysis highlighted the Bufonidae as promising sources of antimicrobial peptides. A review of the literature reveals that Bufonidae skin secretion extracts show inhibitory activity in vitro against clinical isolates of bacteria, resistant and standard strains of bacterial, and fungal and parasitic human pathogens. Secondary metabolites belonging to the classes of alkaloids, bufadienolides, and peptides with antimicrobial activity have been isolated from species of the genera Bufo, Bufotes, Duttaphrynus, and Rhinella. Additionally, some antimicrobial extracts and purified compounds display low cytotoxicity against mammal cells.
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Affiliation(s)
- Candelario Rodriguez
- Centro de Biodiversidad y Descubrimiento de Drogas, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), Clayton, Panama City 0843-01103, Panama;
- Departamento de Bioquímica, Facultad de Ciencias Naturales, Exactas y Tecnología, Universidad de Panamá, Apartado 0824-03366, Panama
- Department of Biotechnology, Acharya Nagarjuna University, Nagarjuna Nagar, Guntur 522510, India
- Scientific Station COIBA, (COIBA AIP), Ciudad del Saber, Apartado 0816-02852, Panama
| | - Roberto Ibáñez
- Smithsonian Tropical Research Institute (STRI), Balboa 0843-03092, Panama;
- Departamento de Zoología, Facultad de Ciencias Naturales, Exactas y Tecnología, Universidad de Panamá, Apartado 0824-03366, Panama
| | - Louise A. Rollins-Smith
- Department of Pathology, Microbiology, and Immunology, and Department of Pediatrics, Vanderbilt University School of Medicine, Nashville, TN 37232, USA;
| | - Marcelino Gutiérrez
- Centro de Biodiversidad y Descubrimiento de Drogas, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), Clayton, Panama City 0843-01103, Panama;
- Correspondence: (M.G.); (A.A.D.-A.)
| | - Armando A. Durant-Archibold
- Centro de Biodiversidad y Descubrimiento de Drogas, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), Clayton, Panama City 0843-01103, Panama;
- Departamento de Bioquímica, Facultad de Ciencias Naturales, Exactas y Tecnología, Universidad de Panamá, Apartado 0824-03366, Panama
- Correspondence: (M.G.); (A.A.D.-A.)
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Zárate-Pérez F, Hackett JC. Conformational selection is present in ligand binding to cytochrome P450 19A1 lipoprotein nanodiscs. J Inorg Biochem 2020; 209:111120. [PMID: 32464592 DOI: 10.1016/j.jinorgbio.2020.111120] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 04/28/2020] [Accepted: 05/16/2020] [Indexed: 11/25/2022]
Abstract
Cytochromes P450 (CYPs) display remarkable plasticity in their ability to bind substrates and catalyze a broad array of chemical reactions. Herein we evaluate binding of androstenedione, testosterone, and 7-hydroxyflavone to CYP19A1, also known as aromatase, in phospholipid nanodiscs by stopped-flow UV-vis spectroscopy. Exponential fitting of the kinetic traces supports the possibility of a multi-step binding mechanism. Subsequent global fitting of the data to the solutions of the coupled differential equations describing the fundamental mechanisms of induced fit and conformational selection, consistently support presence of the latter. To our knowledge, this is the first discrimination of conformational selection from induced fit for a mono-disperse CYP in a native-like membrane environment. In addition, 7-hydroxyflavone binds to CYP19A1 nanodiscs with comparable affinity to the substrates and induces an unusual spectral response likely attributable to hydrogen bonding to, rather than displacement of the heme-coordinated water molecule.
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Affiliation(s)
- Francisco Zárate-Pérez
- Department of Physiology and Biophysics and The Massey Cancer Center, Virginia Commonwealth University School of Medicine, Richmond, VA 23298, United States of America
| | - John C Hackett
- Department of Physiology and Biophysics and The Massey Cancer Center, Virginia Commonwealth University School of Medicine, Richmond, VA 23298, United States of America.
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