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Mussy MH, de Almeida R, de Carvalho DP, Lauthartte LC, de Holanda IBB, Almeida MGD, de Sousa-Filho IF, de Rezende CE, Malm O, Bastos WR. Evaluating total mercury and methylmercury biomagnification using stable isotopes of carbon and nitrogen in fish from the Madeira River basin, Brazilian Amazon. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:33543-33554. [PMID: 36480140 DOI: 10.1007/s11356-022-24235-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 11/12/2022] [Indexed: 06/17/2023]
Abstract
The isotopic signatures of carbon in primary consumer fish species in the Madeira River basin (Western Amazon) follow a pattern, with basal species feeding mainly on C3 (e.g., vascular plants and phytoplankton). In this study with 196 specimens of 19 fish species and six trophic guilds, significant differences were found between the two main groups of primary consumers (herbivores and detritivores) in the Madeira River basin. The mercury and δ15N data indicated that the fish specimens collected in Puruzinho and Cuniã Lakes provided greater trophic magnification factors (TMFs) for this metal than those found in the corresponding rivers. In relation to total mercury (0.09-2.07 μg g-1) and methylmercury (0.05-1.91 μg g-1) concentrations, the piscivorous/carnivorous species exceeded the values recommended by the World Health Organization, with a [MeHg:THg] ratio of about 80%. Preventive and educational practices should be adopted to reduce the possible toxic effects of Hg in the riverside population, for whom fish constitutes the main protein source. Also, biomonitoring of the fish species in the Madeira River should be conducted on an ongoing basis to detect possible alterations in mercury concentrations.
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Affiliation(s)
- Marília Higino Mussy
- Laboratório de Biogeoquímica Ambiental WCP, Fundação Universidade Federal de Rondônia, Porto Velho, Brazil
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ronaldo de Almeida
- Laboratório de Biogeoquímica Ambiental WCP, Fundação Universidade Federal de Rondônia, Porto Velho, Brazil
- Departamento de Ciências Sociais e Ambientais, Fundação Universidade Federal de Rondônia, Guajará-Mirim, Rondônia, Brazil
| | - Dario Pires de Carvalho
- Laboratório de Biogeoquímica Ambiental WCP, Fundação Universidade Federal de Rondônia, Porto Velho, Brazil
- Santo Antônio Energia, Porto Velho, Rondônia, Brazil
| | - Leidiane Caroline Lauthartte
- Laboratório de Biogeoquímica Ambiental WCP, Fundação Universidade Federal de Rondônia, Porto Velho, Brazil
- Colégio Universitário, Universidade Federal do Maranhão, São Luís, Maranhão, Brazil
| | | | - Marcelo Gomes de Almeida
- Laboratório de Ciências Ambientais, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Rio de Janeiro, Brazil
| | - Izidro Ferreira de Sousa-Filho
- Laboratório de Biogeoquímica Ambiental WCP, Fundação Universidade Federal de Rondônia, Porto Velho, Brazil
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Carlos Eduardo de Rezende
- Laboratório de Ciências Ambientais, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Rio de Janeiro, Brazil
| | - Olaf Malm
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Wanderley Rodrigues Bastos
- Laboratório de Biogeoquímica Ambiental WCP, Fundação Universidade Federal de Rondônia, Porto Velho, Brazil.
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Vieira JCS, Braga CP, Queiroz JVD, Cavecci-Mendonça B, Oliveira GD, Freitas NGD, Fernandes AAH, Fernandes MDS, Buzalaf MAR, Adamec J, Zara LF, Padilha PDM. The effects of mercury exposure on Amazonian fishes: An investigation of potential biomarkers. CHEMOSPHERE 2023; 316:137779. [PMID: 36632955 DOI: 10.1016/j.chemosphere.2023.137779] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 01/04/2023] [Accepted: 01/05/2023] [Indexed: 05/05/2023]
Abstract
Exposure to mercury can interfere with the expression of proteins and enzymes, compromise important pathways, such as apoptosis and glucose metabolism, and even induce the expression of metallothioneins. In this study, analytical techniques were used to determine the concentration of total mercury (THg) in muscle and liver tissue, protein pellets, and spots [using graphite furnace atomic absorption spectrometry (GFAAS)], and molecular techniques were used to identify metalloproteins present in mercury-associated protein spots. Thirty individuals from three different fish species, Cichla sp. (n = 10), Brachyplatystoma filamentosum (n = 10), and Semaprochilodus sp. (n = 10) from the Brazilian Amazon were used. Oxidative stress indicators [such as glutathione peroxidase (GSH-Px), catalase (CAT), superoxide dismutase (SOD), a marker of lipid peroxidation (LPO)] and the possible expression of metallothioneins in muscle and liver tissues were investigated. The two piscivorous species, Cichla sp. and B. filamentosum, presented the highest concentrations of mercury in their hepatic tissue, 1219 ± 15.00 and 1044 ± 13.6 μg kg-1, respectively, and in their muscle tissue, 101 ± 1.30 μg kg-1 and 87.4 ± 0.900 μg kg-1, respectively. The non-carnivorous species Semaprochilodus sp. had comparatively low concentrations of mercury in both its hepatic (852 ± 11.1 μg kg-1) and muscle (71.4 ± 0.930 μg kg-1) tissues. The presence of mercury was identified in 24 protein spots using GFAAS; concentrations ranged from 11.5 to 787 μg kg-1, and mass spectrometry identified 21 metal-binding proteins. The activities of GSH-Px, CAT, and SOD, related to oxidative stress, decreased proportionally as tissue Hg concentrations increased, while the levels of LPO markers increased, indicating the presence of stress. Our study results demonstrate possible mercury interference in oxidative stress markers (GSH-Px, CAT, SOD, and LPO), in addition to the identification of 21 metal-binding proteins as possible biomarkers of mercury exposure in fish.
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Affiliation(s)
| | | | - João Vitor de Queiroz
- São Paulo State University (UNESP), School of Veterinary Medicine and Animal Science, Botucatu, SP, Brazil
| | - Bruna Cavecci-Mendonça
- São Paulo State University (UNESP), Institute of Biosciences, Botucatu, São Paulo, Brazil
| | - Grasieli de Oliveira
- São Paulo State University (UNESP), Institute of Biosciences, Botucatu, São Paulo, Brazil
| | | | | | | | | | - Jiri Adamec
- University of Nebraska (UNL), Lincoln, United States
| | - Luiz Fabrício Zara
- University of Brasília (UNB), College of Planaltina, Distrito Federal, Brazil
| | - Pedro de Magalhães Padilha
- São Paulo State University (UNESP), Institute of Biosciences, Botucatu, São Paulo, Brazil; São Paulo State University (UNESP), School of Veterinary Medicine and Animal Science, Botucatu, SP, Brazil.
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3
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Luo J, Zhao H, Chen L, Liu M. Multifaceted functions of RPS27a: An unconventional ribosomal protein. J Cell Physiol 2023; 238:485-497. [PMID: 36580426 DOI: 10.1002/jcp.30941] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 11/28/2022] [Accepted: 12/21/2022] [Indexed: 12/30/2022]
Abstract
The ribosomal protein S27a (RPS27a) is cleaved from the fusion protein ubiquitin-RPS27a (Ub-RPS27a). Generally, Ub and RPS27a are coexpressed as a fusion protein but function independently after Ub is cleaved from RPS27a by a deubiquitinating enzyme. As an RP, RPS27a assembles into ribosomes, but it also functions independently of ribosomes. RPS27a is involved in the development and poor prognosis of various cancers, such as colorectal cancer, liver cancer, chronic myeloid leukemia, and renal carcinoma, and is associated with poor prognosis. Notably, the murine double minute 2/P53 axis is a major pathway through which RPS27a regulates cancer development. Moreover, RPS27a maintains sperm motility, regulates winged aphid indirect flight muscle degeneration, and facilitates plant growth. Additionally, RPS27a is a metalloprotein and mercury (Hg) biomarker. In the present review, we described the origin, structure, and biological functions of RPS27a.
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Affiliation(s)
- Jingshun Luo
- Key Laboratory of Cardiovascular Diseases of Yunnan Province, Key Laboratory of Tumor Immunological Prevention and Treatment of Yunnan Province, Central laboratory of Yan'an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, China
- Institute of Pharmacy and Pharmacology, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Hong Zhao
- Institute of Pharmacy and Pharmacology, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- Nursing College, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Linxi Chen
- Institute of Pharmacy and Pharmacology, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Meiqing Liu
- Key Laboratory of Cardiovascular Diseases of Yunnan Province, Key Laboratory of Tumor Immunological Prevention and Treatment of Yunnan Province, Central laboratory of Yan'an Hospital Affiliated to Kunming Medical University, Kunming, Yunnan, China
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Santiago MGA, Faria VD, Cirinêu FD, Queiroz da Silva LLDL, de Almeida EC, Cavallini NG, Souza Vieira JC, Henrique Fernandes AA, Braga CP, Zara LF, Rabelo Buzalaf MA, Adamec J, de Magalhães Padilha P. Metalloproteomic approach to liver tissue of rats exposed to mercury. CHEMOSPHERE 2023; 312:137222. [PMID: 36375612 DOI: 10.1016/j.chemosphere.2022.137222] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 11/05/2022] [Accepted: 11/09/2022] [Indexed: 06/16/2023]
Abstract
The aims of this study were to identify mercury-associated protein spots in the liver tissue of rats exposed to low concentrations of mercury and to elucidate the physiological and functional aspects of the proteins identified in the protein spots. Therefore, proteomic analysis of the liver tissue of Wistar rats exposed to mercury chloride (4.60 μg kg-1 in Hg2+) was performed for thirty days (Hg-30 group) and sixty days (Hg-60 group). The proteomic profile of the liver tissue of the rats was obtained by two-dimensional electrophoresis (2D-PAGE), and the determinations of total mercury in the liver tissue, pellets and protein spots were performed by graphite furnace atomic absorption spectrometry (GFAAS). ImageMaster 2D Platinum 7.0 software was used to identify the differentially expressed mercury-associated protein spots, which were then characterized by liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS). The determinations by GFAAS indicated a total mercury bioaccumulation of 2812% in the Hg-30 group and 3298% in the Hg-60 group and 10 mercury-associated protein spots with a concentration range of 51 ± 1.0 to 412 ± 6.00 mg kg-1 in the 2D PAGE gels from the liver tissue of the Hg-60 group. The LC-MS/MS analyses allowed the identification of 11 metal binding proteins in mercury-associated protein spots that presented fold change with upregulation >1.5, downregulation < -1.7 or that were expressed only in the Hg-60 group. Using the FASTA sequences of the proteins identified in the mercury-associated protein spots, bioinformatics analyses were performed to elucidate the physiological and functional aspects of the metal binding proteins, allowing us to infer that enzymes such as GSTM2 presented greater mercury concentrations and downregulation < -3; Acaa2 and Bhmt, which showed expression only in the Hg-60 group, among others, may act as potential mercury exposure biomarkers.
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Affiliation(s)
| | - Victor Diego Faria
- São Paulo State University (UNESP), Institute of Biosciences, Botucatu, SP, Brazil
| | | | | | | | | | | | | | | | - Luís Fabrício Zara
- University of Brasília (UNB), College of Planaltina, Distrito Federal, Brazil
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5
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da Cunha Bataglioli I, de Queiroz JV, Vieira JCS, Cavalline NG, Braga CP, Buzalaf MAR, Zara LF, Adamec J, de Magalhães Padilha P. Mercury metalloproteomic profile in muscle tissue of Arapaima gigas from the Brazilian Amazon. ENVIRONMENTAL MONITORING AND ASSESSMENT 2022; 194:705. [PMID: 35999477 DOI: 10.1007/s10661-022-10357-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 08/11/2022] [Indexed: 06/15/2023]
Abstract
Metalloproteomics is an innovative methodology for identifying of protein-associated mercury. Thus, we analyzed the muscle proteome of Arapaima gigas (pirarucu), collected in the Madeira River of the Brazilian Amazon, to identify protein-associated mercury, with the aim of identifying possible mercury biomarkers in fish muscle tissue. After obtaining the protein pellet, we conducted two-dimensional electrophoresis (2D PAGE) to fractionate the muscle proteome. Total mercury in muscle tissue and protein pellets and mapping of mercury content in protein spots of the 2D PAGE gels was determined using graphite furnace atomic absorption spectrometry (GFAAS). The protein-associated mercury identification was performed using liquid chromatography coupled with sequence mass spectrometry (LC‒MS/MS). Total mercury determinations by GFAAS indicated concentrations on the order of 153 ± 1.90 mg kg-1 and 142 ± 1.50 mg kg-1 (total precipitation of protein fraction) and 139 ± 1.45 mg kg-1 (fractional precipitation of protein fraction) in muscle tissue and protein pellets, respectively. Mercury concentrations in the range of 48 ± 0.90 to 165 ± 3.00 mg kg-1 were found in twelve protein spots. Among the 2D PAGE protein spots, eleven Hg-binding proteins were identified using LC‒MS/MS, which showed characteristics of mercury exposure biomarkers for important metabolic functions, such as five parvalbumin isoforms, triosephosphate isomerase, cofilin 2 (muscle), and fructose-bisphosphate aldolases.
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Affiliation(s)
| | - João Vitor de Queiroz
- School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, Brazil
| | | | - Nubya Gonçalves Cavalline
- School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, Brazil
| | | | | | - Luís Fabrício Zara
- College of Planaltina, University of Brasília (UNB), Distrito Federal, Brazil
| | | | - Pedro de Magalhães Padilha
- School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, Brazil.
- Institute of Biosciences, São Paulo State University (UNESP), Botucatu, Brazil.
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6
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Vieira JCS, de Oliveira G, Cavallini NG, Braga CP, Adamec J, Zara LF, Buzalaf MAR, de Magalhães Padilha P. Investigation of Protein Biomarkers and Oxidative Stress in Pinirampus pirinampu Exposed to Mercury Species from the Madeira River, Amazon-Brazil. Biol Trace Elem Res 2022; 200:1872-1882. [PMID: 34482504 DOI: 10.1007/s12011-021-02805-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 06/18/2021] [Indexed: 12/27/2022]
Abstract
In recent decades, the scientific community has widely debated the contamination of fish in the Amazon region by mercury species. As the diet of riverside populations in the Amazon region is based mainly on fish, these populations are exposed to mercurial species that can cause serious and irreversible damage to their health. The risks of consuming fish exposed to mercurial species in the Amazon region have motivated toxicological investigations. However, the effect of mercurial species on protein and enzyme levels is still controversial. In this work, analytical and bioanalytical techniques Two-dimensional polyacrylamide gel electrophoresis [2D-PAGE] Graphite Furnace Atomic Absorption Spectrometry [GFAAS], and Mass Spectrometry in Sequence with Electrospray Ionization [ESI-MS/MS] were used to identify proteins associated with mercury (metal-binding protein) in muscle and liver tissues of the fish species Pinirampus pirinampu from the Madeira River, in the Brazilian Amazon. Enzymatic and lipid peroxidation analyses were also used to assess changes related to oxidative stress. Determinations of total mercury by GFAAS indicated higher concentrations in liver tissue (555 ± 19.0 µg kg-1) when compared to muscle tissue (60 ± 2.0 µg kg-1). The fractionation process of tissue proteomes by 2D-PAGE and subsequent mapping of mercury by GFAAS in the protein spots of the gels identified the presence of mercury in three spots of the liver tissue (concentrations in the range of 0.800 to 1.90 mg kg-1). The characterization of protein spots associated with mercury by ESI-MS/MS identified the enzymes triosephosphate isomerase A, adenylate kinase 2 mitochondrial, and glyceraldehyde-3-phosphate dehydrogenase as possible candidates for mercury exposure biomarkers. The muscle tissue did not show protein spots associated with mercury. Enzymatic activity decreased proportionally to the increase in mercury concentrations in the tissues.
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Affiliation(s)
| | - Grasieli de Oliveira
- Institute of Biosciences, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | | | | | - Jiri Adamec
- University of Nebraska (UNL), Lincoln, NE, USA
| | - Luiz Fabrício Zara
- College of Planaltina, University of Brasília (UNB), Brasília, Distrito Federal, Brazil
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7
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de Almeida Longuini A, Martineli GM, Camilli MP, de Barros DCB, Vieira JCS, de Magalhães Padilha P, de Oliveira Orsi R. Supplementation with an Inorganic Zinc Source in the Metalloproteomic Profile of Royal Jelly in Apis mellifera L. Biol Trace Elem Res 2021; 199:4308-4318. [PMID: 33398653 DOI: 10.1007/s12011-020-02564-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 12/25/2020] [Indexed: 10/22/2022]
Abstract
This study aimed to evaluate the quality of royal jelly produced by honeybees Apis mellifera supplemented with different concentrations of inorganic zinc (zinc sulfate monohydrate-0, 25, 50, and 75 ppm). Two-dimensional electrophoresis for the fractionation of royal jelly proteins was performed, and the zinc level was quantified by the flame atomic absorption spectrometry (FAAS) technique. Proteins were identified by electrospray ionization mass spectrometry (ESI MS MS). Analysis of variance followed by the Tukey test (P < 0.05) was used. Supplementation with the mineral zinc positively affected the quantification of proteins for treatments 50 and 75 ppm. However, all treatments independent of zinc concentrations showed fewer protein spots when compared to the control. All zinc-containing proteins were classified as major royal jelly proteins (MRJPs). The exposure of nursing bees to the mineral zinc in its inorganic form reduced the expression of six different MRJPs involved in larval and glands development of nursing bees (MRJP1, MRJP2, MRJP3, MRJP5, and MRJP7), however promoted an increase in the expression of royal jelly proteins involved in defense systems (MRJP8 and MRJP9). The results demonstrate that vital proteins and metabolic processes are impaired in nursing bees exposed to the mineral zinc in its inorganic form in all doses used affecting nutrition and maintenance of colonies.
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Affiliation(s)
- Aimê de Almeida Longuini
- Faculty of Veterinary Medicine and Animal Science, UNESP- São Paulo State University, Botucatu, Brazil
| | - Gabriel Moreno Martineli
- Faculty of Veterinary Medicine and Animal Science, UNESP- São Paulo State University, Botucatu, Brazil
| | - Marcelo Polizel Camilli
- Faculty of Veterinary Medicine and Animal Science, UNESP- São Paulo State University, Botucatu, Brazil
| | | | | | | | - Ricardo de Oliveira Orsi
- Faculty of Veterinary Medicine and Animal Science, UNESP- São Paulo State University, Botucatu, Brazil.
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8
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de Queiroz JV, Cavecci-Mendonça B, Vieira JCS, Martins RA, de Almeida Assunção AS, Cavallini NG, Dos Santos FA, de Magalhães Padilha P. Metalloproteomic Strategies for Identifying Proteins as Biomarkers of Mercury Exposure in Serrasalmus rhombeus from the Amazon Region. Biol Trace Elem Res 2021; 199:712-720. [PMID: 32449008 DOI: 10.1007/s12011-020-02178-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 04/24/2020] [Indexed: 02/05/2023]
Abstract
This manuscript describes the results of a metalloproteomic study of mercury in samples of muscle and liver tissue of the species Serrasalmus rhombeus, popularly known as black piranha and characterised as the most voracious and aggressive predator in the Brazilian Amazon. The metalloproteomic study involved using two-dimensional electrophoresis (2D PAGE) to fractionate the proteome of the muscle and liver tissue samples, along with atomic absorption spectrometry in a graphite furnace (GFAAS) to identify mercury associated with protein SPOTs and mass spectrometry with electrospray ionisation (ESI-MS/MS) to characterise the mercury-binding proteins. The protein SPOTs characterised showed concentrations in the order of 156 mg kg-1, which ranks as the highest concentrations of mercury determined so far in metalloproteomic studies involving fish species in the Amazon region. Based on FASTA sequences of proteins characterised by ESI-MS/MS, bioinformatics studies were performed that allowed identifying nine proteins with characteristics of biomarkers of mercury exposure. Of those proteins, glutathione peroxidase stands out as an enzyme of great importance in the antioxidant defence of organisms subjected to oxidative stress caused by xenobiotics.
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Affiliation(s)
- João Vitor de Queiroz
- School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Rua Prof R. Dr. Valter Maurício Corrêa, s/n, Botucatu, SP, 18.618-681, Brazil
| | - Bruna Cavecci-Mendonça
- Venom and Venomous Animals Study Center (CEVAP) of São Paulo State University (UNESP), Rua José Barbosa de Barros, 1780 - Vila Ema, Botucatu, SP, 18.610-307, Brazil.
- Institute of Biosciences, São Paulo State University (UNESP), Rua Prof. Dr. Antonio Celso Wagner Zanin, 250, Botucatu, SP, 18.618-689, Brazil.
| | - José Cavalcante Souza Vieira
- Institute of Biosciences, São Paulo State University (UNESP), Rua Prof. Dr. Antonio Celso Wagner Zanin, 250, Botucatu, SP, 18.618-689, Brazil
| | - Renata Aparecida Martins
- School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Rua Prof R. Dr. Valter Maurício Corrêa, s/n, Botucatu, SP, 18.618-681, Brazil
| | - Andrey Sávio de Almeida Assunção
- School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Rua Prof R. Dr. Valter Maurício Corrêa, s/n, Botucatu, SP, 18.618-681, Brazil
| | - Nubya Gonçalves Cavallini
- Institute of Biosciences, São Paulo State University (UNESP), Rua Prof. Dr. Antonio Celso Wagner Zanin, 250, Botucatu, SP, 18.618-689, Brazil
| | - Felipe André Dos Santos
- Faculty of Science and Engineering, São Paulo State University (UNESP), R. Domingos da Costa Lopes, 780 - Jardim Itaipu, Tupã, SP, 17.602-496, Brazil
| | - Pedro de Magalhães Padilha
- School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Rua Prof R. Dr. Valter Maurício Corrêa, s/n, Botucatu, SP, 18.618-681, Brazil.
- Institute of Biosciences, São Paulo State University (UNESP), Rua Prof. Dr. Antonio Celso Wagner Zanin, 250, Botucatu, SP, 18.618-689, Brazil.
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9
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Vieira JCS, de Oliveira G, Braga CP, da Silva Fernandes M, de Moraes PM, Buzalaf MAR, de Oliveira LCS, de Magalhães Padilha P. Parvalbumin and Ubiquitin as Potential Biomarkers of Mercury Contamination of Amazonian Brazilian Fish. Biol Trace Elem Res 2020; 197:667-675. [PMID: 31925742 DOI: 10.1007/s12011-020-02026-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 01/01/2020] [Indexed: 12/23/2022]
Abstract
Recent studies have demonstrated the association of mercury (Hg) with some fish proteins, milk, and hair from individuals exposed to the element in the Amazon. However, few studies involve identifying biomarkers of mercury exposure. Therefore, the present study aimed to identify potential biomarkers of Hg exposure in fish. For this, the muscular tissues of two species of fish (Prochilodus lineatus and Mylossoma duriventre) that feed the Amazonian human population were analyzed. Through the analyses obtained by graphite furnace atomic absorption spectrometry (GFAAS), it was possible to identify four protein SPOTS where mercury was present. These SPOTS, identified by mass spectrometry (ESI-MS/MS), included parvalbumin and ubiquitin-40S ribosomal protein S27a, and these being metalloproteins with biomarker characteristics. In addition, the results show the intense Hg/protein ratio observed in the two proteins, which makes metalloproteins strong candidates for biomarkers of mercury exposure. Graphical Abstract.
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Affiliation(s)
- José Cavalcante Souza Vieira
- São Paulo State University (UNESP), Institute of Biosciences, Botucatu, Brazil.
- Federal University of Mato Grosso do Sul (UFMS), Campo Grande, Brazil.
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10
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de Paula Araújo WL, Negrão AF, Vieira JCS, Bittarello AC, de Magalhães Padilha P, de Oliveira Orsi R. Supplementation with an Inorganic Iron Source Modulates the Metalloproteomic Profile of the Royal Jelly Produced by Apis mellifera L. Biol Trace Elem Res 2020; 195:648-657. [PMID: 31473899 DOI: 10.1007/s12011-019-01863-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Accepted: 08/04/2019] [Indexed: 10/26/2022]
Abstract
This study aimed to evaluate the quality of the royal jelly produced by Apis mellifera bees in the presence of different iron concentrations (ferrous sulfate heptahydrate-0, 25, 50, and 100 mg L-1). Two-dimensional electrophoresis was used for the fractionation of royal jelly proteins, and iron level was quantified using flame atomic absorption spectrometry technique. The proteins were identified using electrospray ionisation mass spectrometry. Analysis of variance followed by the Tukey test (P < 0.05) was utilised. Dietary supplementation with mineral Fe affected the protein content and number of proteins in the experimental period. Further, the diet containing the highest iron concentration showed a greater number of spots containing iron, as well as in the abdomen of the bees. The most protein containing Fe were classified as major royal jelly proteins. These results showed that Fe influenced the quality of royal jelly and can improve its nutritional value.
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Affiliation(s)
| | - Adriana Fava Negrão
- UNESP - São Paulo State University, School of Veterinary Medicine and Animal Science, Botucatu, Brasil
| | | | | | | | - Ricardo de Oliveira Orsi
- UNESP - São Paulo State University, School of Veterinary Medicine and Animal Science, Botucatu, Brasil
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11
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Bittarello AC, Vieira JCS, Braga CP, da Cunha Bataglioli I, de Oliveira G, Rocha LC, Zara LF, Buzalaf MAR, de Oliveira LCS, Adamec J, de Magalhães Padilha P. Metalloproteomic approach of mercury-binding proteins in liver and kidney tissues of Plagioscion squamosissimus (corvina) and Colossoma macropomum (tambaqui) from Amazon region: Possible identification of mercury contamination biomarkers. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 711:134547. [PMID: 31812405 DOI: 10.1016/j.scitotenv.2019.134547] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 09/16/2019] [Accepted: 09/17/2019] [Indexed: 06/10/2023]
Abstract
Fish is an important source of protein, vitamins, and minerals. However, this food is also a major source of human exposure to toxic contaminants such as mercury. Thus, this paper aimed to evaluate mercury-binding proteins for possible application as biomarkers of mercury contamination in hepatic and renal tissues of Plagioscion squamosissimus (carnivorous fish) and Colossoma macropomum (omnivorous fish) from the Amazon region using metalloproteomic approach. The proteome of hepatic and renal tissues of fish species was separated by two-dimensional polyacrylamide gel electrophoresis (2D-PAGE), and the mercury concentrations in protein spots were determined by graphite furnace atomic absorption spectrometry (GFAAS). Finally, the protein spots associated to mercury were characterized by electrospray ionization mass spectrometry (ESI-MS/MS). The activity of antioxidant enzymes (SOD, CAT, GPx, and GST) and lipid peroxidation (LPO) were also determined. The results showed that the highest concentrations of mercury were found in the carnivorous species (P. squamosissimus) and that the accumulation pattern of this metal was higher in hepatic tissues than in renal tissues for both species. A tendency was observed for greater enzymatic activity in the hepatic and renal tissues of P. squamosissimus, the species with the highest concentration of mercury. Only GPx activity in the kidney and GST in the liver were lower for the P. squamosissimus species, and this finding can be explained by the interaction of mercury with these enzymes. The data obtained by ESI-MS/MS allowed for the characterization of the protein spots associated to mercury, revealing proteins involved in energy metabolism, biomolecules transport, protein synthesis and degradation, cell differentiation, gene regulation, and the antioxidant system. The results obtained in the present study can contribute to understanding the physiological processes underlying mercury toxicity and have provided new perspectives on possible candidates for mercury contamination biomarkers in fish.
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Affiliation(s)
- Alis Correia Bittarello
- São Paulo State University (UNESP), School of Veterinary Medicine and Animal Science, Botucatu, Brazil
| | - José Cavalcante Souza Vieira
- São Paulo State University (UNESP), Institute of Biosciences, Botucatu, Brazil; Institute of Chemistry (INQUI), Federal University of Mato Grosso do Sul, Campo Grande (UFMS), Brazil.
| | | | | | | | - Leone Campos Rocha
- São Paulo State University (UNESP), School of Veterinary Medicine and Animal Science, Botucatu, Brazil
| | - Luiz Fabrício Zara
- University of Brasília (UNB), College of Planaltina, Distrito Federal, Brazil
| | | | | | - Jiri Adamec
- University of Nebraska (UNL), Lincoln, United States
| | - Pedro de Magalhães Padilha
- São Paulo State University (UNESP), School of Veterinary Medicine and Animal Science, Botucatu, Brazil; São Paulo State University (UNESP), Institute of Biosciences, Botucatu, Brazil.
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12
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da Silva-Gomes RN, Gabriel Kuniyoshi ML, Oliveira da Silva Duran B, Thomazini Zanella BT, Paccielli Freire P, Gutierrez de Paula T, de Almeida Fantinatti BE, Simões Salomão RA, Carvalho RF, Delazari Santos L, Dal-Pai-Silva M. Prolonged fasting followed by refeeding modifies proteome profile and parvalbumin expression in the fast-twitch muscle of pacu (Piaractus mesopotamicus). PLoS One 2019; 14:e0225864. [PMID: 31856193 PMCID: PMC6922423 DOI: 10.1371/journal.pone.0225864] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 11/13/2019] [Indexed: 01/01/2023] Open
Abstract
Here, we analyzed the fast-twitch muscle of juvenile Piaractus mesopotamicus (pacu) submitted to prolonged fasting (30d) and refeeding (6h, 24h, 48h and 30d). We measured the relative rate of weight and length increase (RRIlength and RRIweight), performed shotgun proteomic analysis and did Western blotting for PVALB after 30d of fasting and 30d of refeeding. We assessed the gene expression of igf-1, mafbx and pvalb after 30d of fasting and after 6h, 24h, 48h and 30d of refeeding. We performed a bioinformatic analysis to predict miRNAs that possibly control parvalbumin expression. After fasting, RRIlength, RRIweight and igf-1 expression decreased, while the mafbx expression increased, which suggest that prolonged fasting caused muscle atrophy. After 6h and 24h of refeeding, mafbx was not changed and igf-1 was downregulated, while after 48h of refeeding mafbx was downregulated and igf-1 was not changed. After 30d of refeeding, RRIlength and RRIweight were increased and igf-1 and mafbx expression were not changed. Proteomic analysis identified 99 proteins after 30d of fasting and 71 proteins after 30d of refeeding, of which 23 and 17, respectively, were differentially expressed. Most of these differentially expressed proteins were related to cytoskeleton, muscle contraction, and metabolism. Among these, parvalbumin (PVALB) was selected for further validation. The analysis showed that pvalb mRNA was downregulated after 6h and 24h of refeeding, but was not changed after 30d of fasting or 48h and 30d of refeeding. The Western blotting confirmed that PVALB protein was downregulated after 30d of fasting and 30d of refeeding. The downregulation of the protein and the unchanged expression of the mRNA after 30d of fasting and 30d of refeeding suggest a post-transcriptional regulation of PVALB. Our miRNA analysis predicted 444 unique miRNAs that may target pvalb. In conclusion, muscle atrophy and partial compensatory growth caused by prolonged fasting followed by refeeding affected the muscle proteome and PVALB expression.
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Affiliation(s)
- Rafaela Nunes da Silva-Gomes
- Department of Morphology, Institute of Bioscience of Botucatu, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Maria Laura Gabriel Kuniyoshi
- Department of Morphology, Institute of Bioscience of Botucatu, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Bruno Oliveira da Silva Duran
- Department of Morphology, Institute of Bioscience of Botucatu, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Bruna Tereza Thomazini Zanella
- Department of Morphology, Institute of Bioscience of Botucatu, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Paula Paccielli Freire
- Department of Morphology, Institute of Bioscience of Botucatu, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Tassiana Gutierrez de Paula
- Department of Morphology, Institute of Bioscience of Botucatu, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | | | | | - Robson Francisco Carvalho
- Department of Morphology, Institute of Bioscience of Botucatu, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Lucilene Delazari Santos
- Center for the Studies of Venoms and Venomous Animals (CEVAP)/ Graduate Program in Tropical Diseases (FMB), São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
| | - Maeli Dal-Pai-Silva
- Department of Morphology, Institute of Bioscience of Botucatu, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil
- * E-mail:
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13
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Cunha Bataglioli ID, Souza Vieira JC, Vitor de Queiroz J, da Silva Fernandes M, Bittarello AC, Braga CP, Rabelo Buzalaf MA, Adamec J, Zara LF, Magalhães Padilha PD. Physiological and functional aspects of metal-binding protein associated with mercury in the liver tissue of pirarucu (Arapaima gigas) from the Brazilian Amazon. CHEMOSPHERE 2019; 236:124320. [PMID: 31323548 DOI: 10.1016/j.chemosphere.2019.07.051] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 07/05/2019] [Accepted: 07/06/2019] [Indexed: 06/10/2023]
Abstract
High concentrations of mercury found in soils, sediments, fish, and humans of the Amazon region have gained prominence in scientific studies during the last decade. However, studies related to the elucidation of mercury toxicity mechanisms in ichthyofauna at the molecular and metallomic levels that seek to elucidate physiological and functional aspects, as well as the search for biomarkers of mercury exposure, are still sparse. In the search for these answers, the present study analyzed the hepatic tissue proteome of the Arapaima gigas (pirarucu) fish species collected in the Jirau hydroelectric power plant reservoir in the state of Rondônia state, Brazil, in order to identify mercury-related metal-binding proteins and to elucidate their physiological and functional aspects. The proteomic profile of the hepatic tissue of Arapaima gigas was obtained by two-dimensional electrophoresis (2D-PAGE) and the presence of mercury was mapped in the protein SPOTS by graphite furnace atomic absorption spectrometry(GFAAS). Mercury was detected in 18 protein SPOTS with concentrations ranging from 0.13 ± 0.003 to 131.00 ± 3 mg kg-1. The characterization of the protein SPOTS associated with mercury was performed by electrospray ionisation tandem mass spectrometry (ESI-MS/MS), and 10 proteins were identified. Bioinformatics analyses showed that most of the proteins found linked to mercury were involved in cellular component processes and biological processes. For the most part, protein sequences have cellular functions comprising catalytic, binding, sense of localization, and metabolic processes.
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Affiliation(s)
| | - José Cavalcante Souza Vieira
- São Paulo State University (UNESP), Institute of Biosciences, Botucatu, Brazil; Institute of Chemistry (Inqui), Federal University of Mato Grosso do Sul, Campo Grande, Brazil (UFMS), Brazil.
| | - João Vitor de Queiroz
- São Paulo State University (UNESP), School of Veterinary Medicine and Animal Science, Botucatu, Brazil
| | | | - Alis Correia Bittarello
- São Paulo State University (UNESP), School of Veterinary Medicine and Animal Science, Botucatu, Brazil
| | | | | | | | - Luiz Fabrício Zara
- University of Brasília (UNB), College of Planaltina, Distrito Federal, Brazil
| | - Pedro de Magalhães Padilha
- São Paulo State University (UNESP), School of Veterinary Medicine and Animal Science, Botucatu, Brazil; São Paulo State University (UNESP), Institute of Biosciences, Botucatu, Brazil.
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14
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Cavecci-Mendonça B, Cavalcante de Souza Vieira J, Monteiro de Lima P, Leite AL, Buzalaf MAR, Zara LF, de Magalhães Padilha P. Study of proteins with mercury in fish from the Amazon region. Food Chem 2019; 309:125460. [PMID: 31732251 DOI: 10.1016/j.foodchem.2019.125460] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Revised: 08/18/2019] [Accepted: 09/03/2019] [Indexed: 11/25/2022]
Abstract
The high concentrations of mercury found in Amazon have been intensively studied by the scientific community in the last decades. These mercurial species bind preferentially to proteins. Therefore, this work proposal sought to obtain the fractionation, identification and study of mercury - bound proteins present in samples of muscular and hepatic tissue from fish collected in the reservoir of the Jirau Hydroelectric Power Plant - on the Madeira River. Two-dimensional electrophoresis (2D-PAGE) for protein fractionation, graphite furnace atomic absorption spectrometry (GFAAS) for the quantification of mercury and Mass Spectrometry (ESI-MS/MS) were used for the identification of proteins. Concluding the work with analysis of graphics from the Blast2go program. Two mercury - bound proteins were identified as triosephosphate isomerase A and Protein FAM45A. The data generated by the bioinformatics programs confirm the tendency of these proteins to be linked to mercury and elucity the possibles existing physiological and cellular interactions.
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Affiliation(s)
- Bruna Cavecci-Mendonça
- São Paulo State University Julio de Mesquita Filho, Botucatu, Department of Chemistry and Biochemistry, Brazil.
| | | | - Paula Monteiro de Lima
- São Paulo State University Julio de Mesquita Filho, Botucatu, Department of Chemistry and Biochemistry, Brazil
| | | | | | | | - Pedro de Magalhães Padilha
- São Paulo State University Julio de Mesquita Filho, Botucatu, Department of Chemistry and Biochemistry, Brazil
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15
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Characterization of molecular biomarkers of mercury exposure to muscle tissue of Plagioscion squamosissimus and Colossoma macropomum from the Amazon region. Food Chem 2019; 276:247-254. [DOI: 10.1016/j.foodchem.2018.10.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 08/27/2018] [Accepted: 10/01/2018] [Indexed: 12/18/2022]
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16
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de Queiroz JV, Vieira JCS, de Oliveira G, Braga CP, da Cunha Bataglioli I, da Silva JM, de Paula Araújo WL, de Magalhães Padilha P. Identification of Biomarkers of Mercury Contamination in Brachyplatystoma filamentosum of the Madeira River, Brazil, Using Metalloproteomic Strategies. Biol Trace Elem Res 2019; 187:291-300. [PMID: 29740802 DOI: 10.1007/s12011-018-1363-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 04/24/2018] [Indexed: 12/17/2022]
Abstract
Predator fish can accumulate high levels of mercury, which qualifies them as potential indicators of this toxic metal. The predatory species Brachyplatystoma filamentosum, popularly known as filhote, is among the most consumed species in the Brazilian Amazon. Continuing the metalloproteomic studies of mercury in Amazonian fishes that have been developed in the last 5 years, the present paper provides the data of protein characterization associated with mercury in muscle and liver samples of filhote (Brachyplatystoma filamentosum) collected in the Madeira River, Brazilian Amazon. The mercury concentration in the muscle and liver samples was determined by graphite furnace atomic absorption spectrometry (GFAAS). The protein fraction was extracted in an aqueous medium, and later, a fractional precipitation procedure was performed to obtain the protein pellets. Then, the proteome of the tissue samples of this fish species was separated by two-dimensional polyacrylamide gel electrophoresis (2D-PAGE), and a mercury mapping of the protein spots was carried out by GFAAS after acid digestion. Protein spots that had mercury were characterized by mass spectrometry with electrospray ionization in sequence (ESI-MS/MS) after tryptic digestion. It was possible to characterize 11 mercury-associated protein spots that presented biomarker characteristics and could be used to monitor mercury in fish species of the Amazon region. Thus, the metalloproteomic strategies used in the present study allowed us to characterize 11 mercury-associated protein spots. It should be noted that the protein spots identified as GFRP, TMEM186, TMEM57B, and BHMT, which have coordination sites for elements with characteristics of soft acids, such as mercury, can be used as biomarkers of mercury contamination in monitoring studies of this toxic metal in fish species from the Amazon region.
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Affiliation(s)
- João Vitor de Queiroz
- School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, Brazil
| | | | | | | | | | | | | | - Pedro de Magalhães Padilha
- School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, Brazil
- Institute of Biosciences, São Paulo State University (UNESP), Botucatu, Brazil
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17
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Braga CP, Adamec J, de Magalhães Padilha P. Metallomics in Fish. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1055:101-110. [PMID: 29884963 DOI: 10.1007/978-3-319-90143-5_5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Metallomics allows the integration of traditionally analytical studies with inorganic and biochemical studies. The study of metallomics in living organisms allows us to obtain information about how the metal ion is distributed and coordinated with proteins, the essentiality and/or toxicity, and the individual concentrations of metal species, thus contributing to elucidation of the physiological and functional aspects of these biomolecules. In this context, several lines of research have appeared in the literature with different terms and approaches. For example, metallomic, which deals with the characterization of the total metal/metalloid species present in an organism; metalloprotein, which deals with the characterization of the total elements present in a specific site of an organism (cellular behavior, protein, metalloprotein); and metallomic, which deals with a more in-depth study of metallome. In this area, information is sought on the interactions and functional connections of metal/metalloid species with genes, proteins, metabolites and other biomolecules of the organism and, therefore, the elucidation of the biological role exerted by the metal ions bound to the biomolecules. In this chapter, we will describe techniques used in animal studies.
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Affiliation(s)
| | - Jiri Adamec
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Pedro de Magalhães Padilha
- Department of Chemistry and Biochemistry, Institute of Bioscience, São Paulo State University (UNESP), Botucatu, São Paulo, Brazil.
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18
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de Queiroz JV, Vieira JCS, da Cunha Bataglioli I, Bittarello AC, Braga CP, de Oliveira G, do Carmo Federici Padilha C, de Magalhães Padilha P. Total Mercury Determination in Muscle and Liver Tissue Samples from Brazilian Amazon Fish Using Slurry Sampling. Biol Trace Elem Res 2018; 184:517-522. [PMID: 29196873 DOI: 10.1007/s12011-017-1212-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Accepted: 11/24/2017] [Indexed: 02/02/2023]
Abstract
This paper presents a slurry sampling method for total mercury determination by graphite furnace atomic absorption spectrometry (GFAAS) in tissue of fish from the Amazon. The tissue samples were lyophilized and macerated, and then the slurry samples were prepared by putting 20 mg of tissue, added to a solution containing Triton X-100, Suprapur HNO3, and zirconium nitrate directly in sampling vials of a spectrometer. Mercury standard solutions were prepared under the same conditions as the slurry samples. The slurry samples and the mercury standard solutions were sonicated for 20 s. Twenty microliters of slurry samples were injected into the graphite tube, which contained an internal wall lined with tungsten carbide. Under these conditions, it was possible to thermally stabilize the mercury up to an atomization temperature of 1700 °C. The method was validated by mercury determination in reference materials DORM-4 and DOLT-4. The LOD and LOQ were 0.014 and 0.045 mg kg-1, respectively, and recovery percentages in relation to the concentration values were certified in the order of 98%.
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Affiliation(s)
- João Vitor de Queiroz
- School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, Brazil
| | | | | | - Alis Correia Bittarello
- School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, Brazil
| | | | - Grasieli de Oliveira
- School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, Brazil
| | | | - Pedro de Magalhães Padilha
- School of Veterinary Medicine and Animal Science, São Paulo State University (UNESP), Botucatu, Brazil
- Institute of Biosciences, São Paulo State University (UNESP), Botucatu, Brazil
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19
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Vieira JCS, Braga CP, de Oliveira G, Padilha CDCF, de Moraes PM, Zara LF, Leite ADL, Buzalaf MAR, Padilha PDM. Mercury Exposure: Protein Biomarkers of Mercury Exposure in Jaraqui Fish from the Amazon Region. Biol Trace Elem Res 2018; 183:164-171. [PMID: 28828596 DOI: 10.1007/s12011-017-1129-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 08/10/2017] [Indexed: 11/25/2022]
Abstract
This study presents data on the extraction and characterization of proteins associated with mercury in the muscle and liver tissues of jaraqui (Semaprochilodus spp.) from the Madeira River in the Brazilian Amazon. Protein fractionation was carried out by two-dimensional electrophoresis (2D-PAGE). Mercury determination in tissues, pellets, and protein spots was performed by graphite furnace atomic absorption spectrometry (GFAAS). Proteins in the spots that showed mercury were characterized by electrospray ionization tandem mass spectrometry (ESI-MS/MS). The highest mercury concentrations were found in liver tissues and pellets (426 ± 6 and 277 ± 4 μg kg-1), followed by muscle tissues and pellets (132 ± 4 and 86 ± 1 μg kg-1, respectively). Mercury quantification in the protein spots allowed us to propose stoichiometric ratios in the range of 1-4 mercury atoms per molecule of protein in the protein spots. The proteins characterized in the analysis by ESI-MS/MS were keratin, type II cytoskeletal 8, parvalbumin beta, parvalbumin-2, ubiquitin-40S ribosomal S27a, 39S ribosomal protein L36 mitochondrial, hemoglobin subunit beta, and hemoglobin subunit beta-A/B. The results suggest that proteins such as ubiquitin-40S ribosomal protein S27a, which have specific domains, possibly zinc finger, can be used as biomarkers of mercury, whereas mercury and zinc present characteristics of soft acids.
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Affiliation(s)
- José Cavalcante Souza Vieira
- Institute of Bioscience of Botucatu, São Paulo State University (UNESP), Rubião Júnior, Botucatu, São Paulo, 18618-970, Brazil
| | - Camila Pereira Braga
- Institute of Bioscience of Botucatu, São Paulo State University (UNESP), Rubião Júnior, Botucatu, São Paulo, 18618-970, Brazil.
| | - Grasieli de Oliveira
- Institute of Bioscience of Botucatu, São Paulo State University (UNESP), Rubião Júnior, Botucatu, São Paulo, 18618-970, Brazil
| | | | - Paula Martin de Moraes
- Institute of Bioscience of Botucatu, São Paulo State University (UNESP), Rubião Júnior, Botucatu, São Paulo, 18618-970, Brazil
| | | | | | | | - Pedro de Magalhães Padilha
- Institute of Bioscience of Botucatu, São Paulo State University (UNESP), Rubião Júnior, Botucatu, São Paulo, 18618-970, Brazil
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20
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Cerbino MR, Vieira JCS, Braga CP, Oliveira G, Padilha IF, Silva TM, Zara LF, Silva NJ, Padilha PM. Metalloproteomics Approach to Analyze Mercury in Breast Milk and Hair Samples of Lactating Women in Communities of the Amazon Basin, Brazil. Biol Trace Elem Res 2018; 181:216-226. [PMID: 28547667 DOI: 10.1007/s12011-017-1057-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Accepted: 05/16/2017] [Indexed: 01/25/2023]
Abstract
Mercury is a potentially toxic element that is present in the environment of the Brazilian Amazon and is responsible for adverse health effects in humans. This study sought to assess possible protein biomarkers of mercury exposure in breast milk samples from lactating women in the Madeira and Negro Rivers in the Brazilian Amazon. The mercury content of hair samples of lactating women was determined, and the proteome of breast milk samples was obtained using two-dimensional electrophoresis after protein precipitation with acetone. Mercury measurements of protein spots obtained via protein fractionation were performed by graphite furnace atomic absorption spectrometry (GFAAS), and it was observed that mercury is linked to proteins with molecular masses in the range of 14-26 kDa. The total mercury concentration was also determined by GFAAS in unprocessed milk, lyophilized milk, and protein pellets, with the purpose of determining the mercury mass balance in relation to the concentration of this element in milk and pellets. Approximately 85 to 97% of mercury present in the lyophilized milk from samples of lactating women of the Madeira River is bound in the protein fraction. From lactating women of the Negro River, approximately 49% of the total mercury is bound in the protein fraction, and a difference of 51% is bound in the lipid fraction.
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Affiliation(s)
- M R Cerbino
- Pontifical Catholic University of Goiás (PUC), Goiânia, GO, Brazil
| | | | - C P Braga
- Institute of Biosciences, São Paulo State University (UNESP), Botucatu, Brazil
| | - G Oliveira
- Institute of Biosciences, São Paulo State University (UNESP), Botucatu, Brazil
| | - I F Padilha
- São Paulo State University (UNESP), São José do Rio Preto, SP, Brazil
| | - T M Silva
- College of Planaltina, University of Brasília (UnB), Brasília, Federal District, Brazil
| | - L F Zara
- College of Planaltina, University of Brasília (UnB), Brasília, Federal District, Brazil
| | - N J Silva
- Pontifical Catholic University of Goiás (PUC), Goiânia, GO, Brazil
| | - P M Padilha
- Institute of Biosciences, São Paulo State University (UNESP), Botucatu, Brazil
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21
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Zhang YW, Yan L, Huang L, Huang HQ. Cerebral ganglion ultrastructure and differential proteins revealed using proteomics in the aplysiid (Notarcus leachii cirrosus Stimpson) under cadmium and lead stress. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2016; 46:17-26. [PMID: 27414742 DOI: 10.1016/j.etap.2016.06.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 05/30/2016] [Accepted: 06/18/2016] [Indexed: 06/06/2023]
Abstract
Cadmium (Cd) and lead (Pb) are both highly toxic metals in environments. However the toxicological mechanism is not clear. In this study, the aplysiid, Notarcus leachii cirrosus Stimpson (NLCS) was subjected to Cd (NLCS-Cd) or Pb (NLCS-Pb). The cerebral ganglion of NLCS was investigated with a transmission electron microscope. Next the differential proteins were separated and identified using proteomic approaches. Eighteen protein spots in NLCS-Cd and seventeen protein spots in NLCS-Pb were observed to be significantly changed. These protein spots were further excised in gels and identified. A hypothetical pathway was drawn to show the correlation between the partially identified proteins. The results indicated that damage to the cerebral ganglion was follows: cell apoptosis, lysosomes proliferation, cytoskeleton disruption, and oxidative stress. These phenomena and data indicated potential biomarkers for evaluating the contamination levels of Cd and Pb. This study provided positive insights into the mechanisms of Cd and Pb toxicity.
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MESH Headings
- Animals
- Aplysia/drug effects
- Aplysia/metabolism
- Biomarkers/analysis
- Biomarkers/metabolism
- Cadmium/pharmacokinetics
- Cadmium/toxicity
- Ecotoxicology/methods
- Electrophoresis, Gel, Two-Dimensional
- Ganglia, Invertebrate/drug effects
- Ganglia, Invertebrate/metabolism
- Ganglia, Invertebrate/ultrastructure
- Lead/pharmacokinetics
- Lead/toxicity
- Microscopy, Electron, Transmission
- Proteins/analysis
- Proteins/metabolism
- Proteomics/methods
- Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
- Water Pollutants, Chemical/pharmacokinetics
- Water Pollutants, Chemical/toxicity
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Affiliation(s)
- Yi-Wei Zhang
- State Key Laboratory of Stress Cell Biology, School of Life Science, Xiamen University, Xiamen 361102, China
| | - Li Yan
- State Key Laboratory of Stress Cell Biology, School of Life Science, Xiamen University, Xiamen 361102, China
| | - Lin Huang
- State Key Laboratory of Stress Cell Biology, School of Life Science, Xiamen University, Xiamen 361102, China; Department of Chemistry, Oregon State University, Corvallis, OR 97331, USA
| | - He-Qing Huang
- State Key Laboratory of Stress Cell Biology, School of Life Science, Xiamen University, Xiamen 361102, China; State Key Laboratory of Marine Environmental Science, School of Ocean and Earth Science, Xiamen University, Xiamen 361102, China; Department of Chemistry, College of Chemistry & Chemical Engineering, and the Key Laboratory of Chemical Biology of Fujian Province, Xiamen University, Xiamen 361102, China.
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