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Strücker GK, Jaramillo ML, de Quadros T, Nazari EM. UVB radiation exposure modulates mitophagy in embryonic cells of freshwater prawn Macrobrachium olfersii: Exploring a protective organelle quality control mechanism. Comp Biochem Physiol A Mol Integr Physiol 2024; 295:111664. [PMID: 38735623 DOI: 10.1016/j.cbpa.2024.111664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 05/08/2024] [Accepted: 05/09/2024] [Indexed: 05/14/2024]
Abstract
Aquatic environments are subject to ultraviolet B (UVB) radiation incidence, and its effects on organisms are dose-dependent. Besides DNA, mitochondria are an important target of this radiation that causes structural damage and impairs its functional dynamics. Here, we hypothesize that mitophagy acts as an organelle quality control mechanism to mitigate UVB impacts in embryonic cells. Then, freshwater prawn Macrobrachium olfersii embryos was used as a model to investigate the effects of UVB on genes (Tomm20, Opa1, Pink, Prkn, Sqstm1, and Map1lc3) and proteins (TOM20, PINK1, p62 and LC3B) involved in mitophagy modulation. The choice of genes and proteins was based on the identification of mitochondrial membrane (Tomm20, Opa1 and TOM20), mediation of mitophagy (Pink1, Prkn and PINK1), and recognition of mitochondria by the autophagosome membrane (Sqstm1, Map1lc3, p62 and LC3B). First, the phylogeny of all genes presented bootstrap values >80 and conserved domains among crustacean species. Gene expression was inherently modulated during development, with transcripts (Tomm20, Opa1, Pink, Prkn, Sqstm1, and Map1lc3) overexpressed in the initial and final stages of development. Moreover, UVB radiation induced upregulation of Tomm20, Opa1, Pink, Prkn, Sqstm1, and Map1lc3 genes at 6 h after exposure. Interestingly, after 12 h, the protein content of PINK1, p62, and LC3B increased, while TOM20 was not responsive. Despite UVB radiation's harmful effects on embryonic cells, the chronology of gene expression and protein content indicates rapid activation of mitophagy, serving as an organelle quality control mechanism, given the analyzed cells' integrity.
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Affiliation(s)
- Giuliam K Strücker
- Departamento de Biologia Celular, Embriologia e Genética, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Michael L Jaramillo
- Departamento de Biologia Celular, Embriologia e Genética, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Thaline de Quadros
- Departamento de Biologia Celular, Embriologia e Genética, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Evelise M Nazari
- Departamento de Biologia Celular, Embriologia e Genética, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil.
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Jaramillo ML, Ammar D, Quispe RL, Bonatto Paese CL, Gruendling AP, Müller YM, Nazari EM. Identification of Hox genes and their expression profiles during embryonic development of the emerging model organism, Macrobrachium olfersii. J Exp Zool B Mol Dev Evol 2022; 338:292-300. [PMID: 35037742 DOI: 10.1002/jez.b.23118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 12/13/2021] [Accepted: 12/19/2021] [Indexed: 06/14/2023]
Abstract
Hox genes encode transcription factors that specify the body segment identity during development, including crustaceans, such as amphipods and decapods, that possess a remarkable diversity of segments and specialized appendages. In amphipods, alterations of specialized appendages have been obtained using knockout experiment of Hox genes, which suggests that these genes are involved in the evolution of morphology within crustaceans. However, studies of Hox genes in crustaceans have been limited to a few species. Here, we identified the homeodomain of nine Hox genes: labial (lab), proboscipedia (pb), Deformed (Dfd), Sex combs reduced (Scr), fushi tarazu (ftz), Antennapedia (Antp), Ultrabithorax (Ubx), abdominal-A (abdA), and Abdominal-B (AbdB), and evaluated their expression by RT-qPCR and RT-PCR in the ovary, during embryonic development, and at the first larval stage (Zoea I) of the decapod Macrobrachium olfersii. The transcript levels of lab, Dfd, and ftz decreased and transcripts of pb, Scr, Antp, Ubx, abdA, and AbdB increased during embryonic development. Hox genes were expressed in mature ovaries and Zoea I larval stages, except Scr and ftz, respectively. In addition, isoforms of Dfd, Scr, Ubx, and abdA, which have been scarcely reported in crustaceans, were described. New partial sequences of 87 Hox genes from other crustaceans were identified from the GenBank database. Our results are interesting for future studies to determine the specific function of Hox genes and their isoforms in the freshwater prawn M. olfersii and to contribute to the understanding of the diversity and evolution of body plans and appendages in Crustaceans.
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Affiliation(s)
- Michael L Jaramillo
- Departamento de Biologia Celular, Embriologia e Genética, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Dib Ammar
- Departamento de Biologia Celular, Embriologia e Genética, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Ruth L Quispe
- Departamento de Bioquímica, Campus Universitário, Universidade Federal de Santa Catarina, Florianópolis, SC, Brazil
| | - Christian L Bonatto Paese
- Departamento de Biologia Celular, Embriologia e Genética, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Ana P Gruendling
- Departamento de Microbiologia, Imunologia e Parasitologia, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Yara M Müller
- Departamento de Biologia Celular, Embriologia e Genética, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Evelise M Nazari
- Departamento de Biologia Celular, Embriologia e Genética, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
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Quispe RL, Jaramillo ML, Torres-Huaco F, Bonilla C, Isasi J, Guerra-Duarte C, Chávez-Olórtegui C. Partial in vivo protection against Peruvian spider Loxosceles laeta venom by immunization with a multiepitopic protein (rMEPLox). Toxicon 2022; 215:1-5. [PMID: 35660625 DOI: 10.1016/j.toxicon.2022.05.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 05/26/2022] [Accepted: 05/27/2022] [Indexed: 10/18/2022]
Abstract
Loxoscelism is a serious public health problem in Peru, with approximately 2500 accidents reported per year. To envision alternatives to cope with this health problem, the neutralizing humoral immune response against the lethal effects of Peruvian spider Loxosceles laeta venom was evaluated in a mouse model by immunization with a non-toxic multiepitopic protein (rMEPLox). This immunogen contains epitopes from an astacin-like metalloprotease, a hyaluronidase and a sphingomyelinase-D from Loxosceles intermedia and from SMase-I from L. laeta venoms. In vivo protection assays showed that five out of six mice immunized with rMEPLox (after six injections) resisted to 1.4 LD50 of L. laeta venom, whereas only two animals from a control group survived. The present results indicates that this multiepitopic protein can be a promising candidate for anti-loxoscelic antivenom production and experimental vaccination approaches.
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Affiliation(s)
- Ruth L Quispe
- Laboratorio de Toxinología, Centro Nacional de Productos Biológicos (CNPB), Instituto Nacional de Salud, Lima, Peru
| | - Michael L Jaramillo
- Laboratorio de Toxinología, Centro Nacional de Productos Biológicos (CNPB), Instituto Nacional de Salud, Lima, Peru
| | - Frank Torres-Huaco
- Laboratorio de Toxinología, Centro Nacional de Productos Biológicos (CNPB), Instituto Nacional de Salud, Lima, Peru; Coordinación de Investigación, Universidad Continental, Avenida Los Incas S/n, Arequipa, Peru
| | - Cesar Bonilla
- Laboratorio de Toxinología, Centro Nacional de Productos Biológicos (CNPB), Instituto Nacional de Salud, Lima, Peru; Facultad de Odontologia, Universidad Nacional Mayor de San Marcos, Peru
| | - Jacqueline Isasi
- Laboratorio de Toxinología, Centro Nacional de Productos Biológicos (CNPB), Instituto Nacional de Salud, Lima, Peru
| | - Clara Guerra-Duarte
- Diretoria de Pesquisa e Desenvolvimento, Fundação Ezequiel Dias, 30510-010, Belo Horizonte, MG, Brazil
| | - Carlos Chávez-Olórtegui
- Laboratorio de Toxinología, Centro Nacional de Productos Biológicos (CNPB), Instituto Nacional de Salud, Lima, Peru; Departamento de Bioquímica e Imunologia, ICB, Universidade Federal de Minas Gerais, Av. Antônio Carlos 6627, CEP, 31270-901, Belo Horizonte, Minas Gerais, Brazil.
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Sirvas Cornejo S, Buleje V, Salvatierra L, Jaramillo ML. Isolation and identification of proteolytic, amylolytic, lipolytic, and chitinolytic bacteria from shrimp waste. Rev peru biol 2021. [DOI: 10.15381/rpb.v28i1.18353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
Bacteria and microbial enzymes are biocatalysts and can be used as an alternative to industrial chemical processes. The present study focused on isolating and identifying bacterial strains from shrimp waste, that produce amylases, lipases, proteases and chitinases with potential use on shrimp waste treatment. Thirty-two bacterial strains were isolated, phenotypically characterized, and identified by the API system and the molecular analysis of the 16S rDNA. It was found that 28.13% of the isolated bacterial strains had amylolytic capacity, 87.50% lipolytic, 96.88% proteolytic and 28.13% chitinolytic capacity on agar plates with specific substrates. The genera Bacillus, Burkholderia, Ochrobactrum, Vibrio, Pseudomonas and Shewanella were identified. Bacteria with enzymatic capacities isolated in the present study, could be used to obtain by-products from shrimp waste as well as other industrial applications.
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Pereira AG, Jaramillo ML, Remor AP, Latini A, Davico CE, da Silva ML, Müller YMR, Ammar D, Nazari EM. Low-concentration exposure to glyphosate-based herbicide modulates the complexes of the mitochondrial respiratory chain and induces mitochondrial hyperpolarization in the Danio rerio brain. Chemosphere 2018; 209:353-362. [PMID: 29935464 DOI: 10.1016/j.chemosphere.2018.06.075] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 06/08/2018] [Accepted: 06/10/2018] [Indexed: 06/08/2023]
Abstract
Glyphosate (N-phosphonomethyl-glycine) (GLY) is the active ingredient of the most used herbicides in the world. GLY is applied in formulated products known as glyphosate-based herbicides (GBH), which could induce effects that are not predicted by toxicity assays with pure GLY. This herbicide is classified as organophosphorus compound, which is known to induce neurotoxic effects. Although this compound is classified as non-neurotoxic by regulatory agencies, acute exposure to GBH causes neurological symptoms in humans. However, there is no consensus in relation to neurotoxic effects of GBH. Thus, the aim of this study was to investigate the neurotoxic effects of the GBH in the zebrafish Danio rerio, focusing on acute toxicity, the activity and transcript levels of mitochondrial respiratory chain complexes, mitochondrial membrane potential, reactive species (RS) formation, and behavioral repertoire. Adult zebrafish were exposed in vivo to three concentrations of GBH Scout®, which contained GLY in formulation (fGLY) (0.065, 1.0 and 10.0 mg L-1 fGLY) for 7 d, and an in vitro assay was performed using also pure GLY. Our results show that GBH induced in zebrafish brain a decrease in cell viability, inhibited mitochondrial complex enzymatic activity, modulated gene expression related to mitochondrial complexes, induced an increase in RS production, promoted hyperpolarization of mitochondrial membrane, and induced behavioral impairments. Together, our data contributes to the knowledge of the neurotoxic effects of GBH. Mitochondrial dysfunction has been recognized as a relevant cellular response that should not be disregarded. Moreover, this study pointed to the mitochondria as an important target of GBH.
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Affiliation(s)
- Aline G Pereira
- Departamento de Biologia Celular, Embriologia e Genética, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, 88040-900, Brazil
| | - Michael L Jaramillo
- Departamento de Biologia Celular, Embriologia e Genética, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, 88040-900, Brazil
| | - Aline P Remor
- Universidade do Oeste de Santa Catarina, 89600-000, Brazil
| | - Alexandra Latini
- Departamento de Bioquímica, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, 88040-900, Brazil
| | - Carla E Davico
- Departamento de Biologia Celular, Embriologia e Genética, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, 88040-900, Brazil
| | | | - Yara M R Müller
- Departamento de Biologia Celular, Embriologia e Genética, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, 88040-900, Brazil
| | - Dib Ammar
- Departamento de Biologia Celular, Embriologia e Genética, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, 88040-900, Brazil; Centro Universitário Católica de Santa Catarina, 89203-005, Brazil
| | - Evelise M Nazari
- Departamento de Biologia Celular, Embriologia e Genética, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, 88040-900, Brazil.
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Jaramillo ML, Pereira AG, Davico CE, Nezzi L, Ammar D, Müller YMR, Nazari EM. Evaluation of reference genes for reverse transcription-quantitative PCR assays in organs of zebrafish exposed to glyphosate-based herbicide, Roundup. Animal 2018; 12:1424-1434. [PMID: 29173213 DOI: 10.1017/s1751731117003111] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Roundup is a glyphosate-based herbicide (GBH) widely used in agriculture and may cause toxic effects in non-target organisms. Model organisms, as zebrafish, and analysis of gene expression by reverse transcription-quantitative PCR (RT-qPCR) could be used to better understand the Roundup toxicity. A prerequisite for RT-qPCR is the availability of appropriate reference genes; however, they have not been described for Roundup-exposed fish. The aim of this study was to evaluate the expression stability of six reference genes (rpl8, β-act, gapdh, b2m, ef1α, hprt1) and one expressed repetitive element (hatn10) in organs of males (brain, gill, testis) and females (ovary) of zebrafish exposed to Roundup WG at three concentrations (0.065, 0.65 and 6.5 mg N-(phosphonomethyl) glycine/l) for 7 days. Genes were ranked by geNorm, NormFinder, BestKeeper, Delta C t and RefFinder, and their best combinations were determined by geNorm and NormFinder programs. The two most stable ranked genes were specific to each organ: gill (β-act; rpl8); brain (rpl8; β-act); testis (ef1α; gapdh); and ovary (rpl8; hprt1). The cat transcript level was used to evaluate the effect of normalization with these reference genes. These are the first suitable reference genes described for the analysis of gene expression in organs of Roundup-exposed zebrafish, and will allow investigations of the molecular mechanisms of Roundup toxicity.
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Affiliation(s)
- M L Jaramillo
- 1Departamento de Biologia Celular,Embriologia e Genética,Universidade Federal de Santa Catarina,88040-900 Florianópolis,Santa Catarina,Brazil
| | - A G Pereira
- 1Departamento de Biologia Celular,Embriologia e Genética,Universidade Federal de Santa Catarina,88040-900 Florianópolis,Santa Catarina,Brazil
| | - C E Davico
- 1Departamento de Biologia Celular,Embriologia e Genética,Universidade Federal de Santa Catarina,88040-900 Florianópolis,Santa Catarina,Brazil
| | - L Nezzi
- 1Departamento de Biologia Celular,Embriologia e Genética,Universidade Federal de Santa Catarina,88040-900 Florianópolis,Santa Catarina,Brazil
| | - D Ammar
- 1Departamento de Biologia Celular,Embriologia e Genética,Universidade Federal de Santa Catarina,88040-900 Florianópolis,Santa Catarina,Brazil
| | - Y M R Müller
- 1Departamento de Biologia Celular,Embriologia e Genética,Universidade Federal de Santa Catarina,88040-900 Florianópolis,Santa Catarina,Brazil
| | - E M Nazari
- 1Departamento de Biologia Celular,Embriologia e Genética,Universidade Federal de Santa Catarina,88040-900 Florianópolis,Santa Catarina,Brazil
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Schramm H, Jaramillo ML, Quadros TD, Zeni EC, Müller YMR, Ammar D, Nazari EM. Effect of UVB radiation exposure in the expression of genes and proteins related to apoptosis in freshwater prawn embryos. Aquat Toxicol 2017; 191:25-33. [PMID: 28780296 DOI: 10.1016/j.aquatox.2017.07.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 07/24/2017] [Accepted: 07/25/2017] [Indexed: 06/07/2023]
Abstract
Our previous studies showed that embryos of the freshwater prawn Macrobrachium olfersii exposed to ultraviolet B (UVB) radiation exhibited DNA damage, excessive ROS production, mitochondrial dysfunction and increased hsp70 expression, which are able, independently or together, to induce apoptosis. Thus, we attempted to elucidate some key apoptosis-related genes (ARG) and apoptosis-related proteins (ARP) and their expression during different stages of embryonic development, as well as to characterize the chronology of ARG expression and ARP contents after UVB radiation insult. We demonstrate that p53, Bax and Caspase3 genes are active in the embryonic cells at early embryonic developmental stages, and that the Bcl2 gene is active from the mid-embryonic stage. After UVB radiation exposure, we found an increase in ARP such as p53 and Bak after 3h of exposure. Moreover, an increase in ARG transcript levels for p53, Bax, Bcl2 and Caspase3 was observed at 6h after UVB exposure. Then, after 12h of UVB radiation exposure, an increase in Caspase3 gene expression and protein was observed, concomitantly with an increased number of apoptotic cells. Our data reveal that ARG and ARP are developmentally regulated in embryonic cells of M. olfersii and that UVB radiation causes apoptosis after 12h of exposure. Overall, we demonstrate that embryonic cells of M. olfersii are able to active the cell machinery against environmental changes, such as increased incidence of UVB radiation in aquatic ecosystems.
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Affiliation(s)
- Heloísa Schramm
- Departamento de Biologia Celular, Embriologia e Genética, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Michael L Jaramillo
- Departamento de Biologia Celular, Embriologia e Genética, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Thaline de Quadros
- Departamento de Biologia Celular, Embriologia e Genética, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Eliane C Zeni
- Departamento de Biologia Celular, Embriologia e Genética, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Yara M R Müller
- Departamento de Biologia Celular, Embriologia e Genética, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Dib Ammar
- Departamento de Biologia Celular, Embriologia e Genética, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil; Centro Universitário Católica de Santa Catarina, Joinville, Santa Catarina, Brazil
| | - Evelise M Nazari
- Departamento de Biologia Celular, Embriologia e Genética, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil.
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Jaramillo ML, Ammar D, Quispe RL, Guzman F, Margis R, Nazari EM, Müller YMR. Identification and evaluation of reference genes for expression studies by RT-qPCR during embryonic development of the emerging model organism, Macrobrachium olfersii. Gene 2016; 598:97-106. [PMID: 27825774 DOI: 10.1016/j.gene.2016.11.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 10/25/2016] [Accepted: 11/02/2016] [Indexed: 11/28/2022]
Abstract
RT-qPCR is a sensitive and highly efficient technique that is widely used in gene expression analysis and to provide insight into the molecular mechanisms underlying embryonic development. The freshwater prawn, Macrobrachium olfersii is an emerging model organism, but, the stable reference genes of this species need to be identified and validated for RT-qPCR analysis. Thus, the aim of this study was to evaluate the expression stability of six genes (β-act, GAPDH, EF-1α, RpL8, RpS6, AK) in embryos and in adult tissues (cerebral ganglia, muscle and hepatopancreas) of M. olfersii. The expression stabilities of these genes were evaluated using geNorm, NormFinder, BestKeeper, ΔCt method and integrated tool RefFinder. In the general ranking, RpL8 and RpS6 were the most stable genes in embryos, while RpS6 and RpL8 were the most stable in a combined adult tissue analysis. Analysis of the adult tissues revealed that β-act and AK were the most stable genes in cerebral ganglia, RpL8 and AK in muscle, and RpS6 and β-act in hepatopancreas. EF-1α and GAPDH were the least stable genes and as normalizer genes in RT-qPCR affected expression of the Distal-less gene during M. olfersii development. This study provides suitable reference genes for RT-qPCR analysis and allows future studies of the gene expression in M. olfersii for understanding the molecular mechanisms of their development. To our knowledge, this is the first published study that identifies and evaluates reference genes for RT-qPCR analysis in M. olfersii and could be useful as basis for evaluations of reference genes in other prawns.
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Affiliation(s)
- Michael L Jaramillo
- Universidade Federal de Santa Catarina, Departamento de Biologia Celular, Embriologia e Genética, 88040-900 Florianópolis, Santa Catarina, Brazil
| | - Dib Ammar
- Universidade Federal de Santa Catarina, Departamento de Biologia Celular, Embriologia e Genética, 88040-900 Florianópolis, Santa Catarina, Brazil; Centro Universitário - Católica de Santa Catarina, 89203-005 Joinville, SC, Brazil
| | - Ruth L Quispe
- Universidade Federal de Santa Catarina, Programa de Pós-Graduação em Neurociências, Campus Universitário, 88040-900 Florianópolis, SC, Brazil
| | - Frank Guzman
- Universidade Federal do Rio Grande do Sul, PPGBCM, Centro de Biotecnologia, 91501-970 Porto Alegre, RS, Brazil
| | - Rogerio Margis
- Universidade Federal do Rio Grande do Sul, Departamento de Biofisica, 91501-970 Porto Alegre, RS, Brazil
| | - Evelise M Nazari
- Universidade Federal de Santa Catarina, Departamento de Biologia Celular, Embriologia e Genética, 88040-900 Florianópolis, Santa Catarina, Brazil.
| | - Yara M R Müller
- Universidade Federal de Santa Catarina, Departamento de Biologia Celular, Embriologia e Genética, 88040-900 Florianópolis, Santa Catarina, Brazil
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Quispe RL, Justino EB, Vieira FN, Jaramillo ML, Rosa RD, Perazzolo LM. Transcriptional profiling of immune-related genes in Pacific white shrimp (Litopenaeus vannamei) during ontogenesis. Fish Shellfish Immunol 2016; 58:103-107. [PMID: 27637731 DOI: 10.1016/j.fsi.2016.09.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 09/09/2016] [Accepted: 09/12/2016] [Indexed: 06/06/2023]
Abstract
We have performed here a gene expression analysis to determine the developmental stage at the main genes involved in crustacean immune response begin to be expressed and their changes in mRNA abundance during shrimp development. By using a quantitative PCR-based approach, we have measured the mRNA abundance of 24 immune-related genes from different functional categories in twelve developmental stages ranging from fertilized eggs to larval and postlarval stages and also in juveniles. We showed for the first time that the main genes from the RNAi-based post-transcriptional pathway involved in shrimp antiviral immunity are transcribed in all developmental stages, but exhibit a diverse pattern of gene expression during shrimp ontogenesis. On the other hand, hemocyte-expressed genes mainly involved in antimicrobial defenses appeared to be transcribed in larval stages, indicating that hematopoiesis initiates early in development. Moreover, transcript levels of some genes were early detected in fertilized eggs at 0-4 h post-spawning, suggesting a maternal contribution of immune-related transcripts to shrimp progeny. Altogether, our results provide important clues regarding the ontogenesis of hemocytes as well the establishment of antiviral and antimicrobial defenses in shrimp.
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Affiliation(s)
- Ruth L Quispe
- Laboratory of Immunology Applied to Aquaculture, Department of Cell Biology, Embryology and Genetics, Federal University of Santa Catarina, 88040-900 Florianópolis, SC, Brazil
| | - Emily B Justino
- Laboratory of Immunology Applied to Aquaculture, Department of Cell Biology, Embryology and Genetics, Federal University of Santa Catarina, 88040-900 Florianópolis, SC, Brazil
| | - Felipe N Vieira
- Laboratory of Marine Shrimp, Department of Aquaculture, Federal University of Santa Catarina, 88040-900 Florianópolis, SC, Brazil
| | - Michael L Jaramillo
- Laboratory of Immunology Applied to Aquaculture, Department of Cell Biology, Embryology and Genetics, Federal University of Santa Catarina, 88040-900 Florianópolis, SC, Brazil
| | - Rafael D Rosa
- Laboratory of Immunology Applied to Aquaculture, Department of Cell Biology, Embryology and Genetics, Federal University of Santa Catarina, 88040-900 Florianópolis, SC, Brazil
| | - Luciane M Perazzolo
- Laboratory of Immunology Applied to Aquaculture, Department of Cell Biology, Embryology and Genetics, Federal University of Santa Catarina, 88040-900 Florianópolis, SC, Brazil.
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Jaramillo ML, Guzman F, Paese CLB, Margis R, Nazari EM, Ammar D, Müller YMR. Exploring developmental gene toolkit and associated pathways in a potential new model crustacean using transcriptomic analysis. Dev Genes Evol 2016; 226:325-37. [PMID: 27278761 DOI: 10.1007/s00427-016-0551-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Accepted: 05/19/2016] [Indexed: 11/24/2022]
Abstract
The crustaceans are one of the largest, most diverse, and most successful groups of invertebrates. The diversity among the crustaceans is also reflected in embryonic development models. However, the molecular genetics that regulates embryonic development is not known in those crustaceans that have a short germ-band development with superficial cleavage, such as Macrobrachium olfersi. This species is a freshwater decapod and has great potential to become a model for developmental biology, as well as for evolutionary and environmental studies. To obtain sequence data of M. olfersi from an embryonic developmental perspective, we performed de novo assembly and annotation of the embryonic transcriptome. Using a pooling strategy of total RNA, paired-end Illumina sequencing, and assembly with multiple k-mers, a total of 25,636,097 pair reads were generated. In total, 99,751 unigenes were identified, and 20,893 of these returned a Blastx hit. KEGG pathway analysis mapped a total of 6866 unigenes related to 129 metabolic pathways. In general, 21,845 unigenes were assigned to gene ontology (GO) categories: molecular function (19,604), cellular components (10,254), and biological processes (13,841). Of these, 2142 unigenes were assigned to the developmental process category. More specifically, a total of 35 homologs of embryonic development toolkit genes were identified, which included maternal effect (one gene), gap (six), pair-rule (six), segment polarity (seven), Hox (four), Wnt (eight), and dorsoventral patterning genes (three). In addition, genes of developmental pathways were found, including TGF-β, Wnt, Notch, MAPK, Hedgehog, Jak-STAT, VEGF, and ecdysteroid-inducible nuclear receptors. RT-PCR analysis of eight genes related to embryonic development from gastrulation to late morphogenesis/organogenesis confirmed the applicability of the transcriptome analysis.
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Affiliation(s)
- Michael L Jaramillo
- Departamento de Biologia Celular, Embriologia e Genética, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Frank Guzman
- PPGGBM, Departamento de Genética, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Christian L B Paese
- Departamento de Biologia Celular, Embriologia e Genética, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Rogerio Margis
- Departamento de Biofisica, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Evelise M Nazari
- Departamento de Biologia Celular, Embriologia e Genética, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Dib Ammar
- Departamento de Biologia Celular, Embriologia e Genética, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Yara Maria Rauh Müller
- Departamento de Biologia Celular, Embriologia e Genética, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, Brazil.
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Jaramillo ML, Abanto M, Quispe RL, Calderón J, del Valle LJ, Talledo M, Ramírez P. Cloning, expression and bioinformatics analysis of ATP sulfurylase from Acidithiobacillus ferrooxidans ATCC 23270 in Escherichia coli. Bioinformation 2012; 8:695-704. [PMID: 23055613 PMCID: PMC3449377 DOI: 10.6026/97320630008695] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Accepted: 07/11/2012] [Indexed: 11/23/2022] Open
Abstract
Molecular studies of enzymes involved in sulfite oxidation in Acidithiobacillus ferrooxidans have not yet been developed, especially in the ATP sulfurylase (ATPS) of these acidophilus tiobacilli that have importance in biomining. This enzyme synthesizes ATP and sulfate from adenosine phosphosulfate (APS) and pyrophosphate (PPi), final stage of the sulfite oxidation by these organisms in order to obtain energy. The atpS gene (1674 bp) encoding the ATPS from Acidithiobacillus ferrooxidans ATCC 23270 was amplified using PCR, cloned in the pET101-TOPO plasmid, sequenced and expressed in Escherichia coli obtaining a 63.5 kDa ATPS recombinant protein according to SDS-PAGE analysis. The bioinformatics and phylogenetic analyses determined that the ATPS from A. ferrooxidans presents ATP sulfurylase (ATS) and APS kinase (ASK) domains similar to ATPS of Aquifex aeolicus, probably of a more ancestral origin. Enzyme activity towards ATP formation was determined by quantification of ATP formed from E. coli cell extracts, using a bioluminescence assay based on light emission by the luciferase enzyme. Our results demonstrate that the recombinant ATP sulfurylase from A. ferrooxidans presents an enzymatic activity for the formation of ATP and sulfate, and possibly is a bifunctional enzyme due to its high homology to the ASK domain from A. aeolicus and true kinases.
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Affiliation(s)
- Michael L Jaramillo
- Laboratory of Molecular Microbiology and Biotechnology, Faculty of Biological Sciences, Universidad Nacional Mayor de San Marcos, Lima – Peru
| | - Michel Abanto
- Laboratory of Molecular Microbiology and Biotechnology, Faculty of Biological Sciences, Universidad Nacional Mayor de San Marcos, Lima – Peru
| | - Ruth L Quispe
- Laboratory of Molecular Microbiology and Biotechnology, Faculty of Biological Sciences, Universidad Nacional Mayor de San Marcos, Lima – Peru
| | - Julio Calderón
- Laboratory of Molecular Microbiology and Biotechnology, Faculty of Biological Sciences, Universidad Nacional Mayor de San Marcos, Lima – Peru
| | - Luís J del Valle
- Centre díEnginyeria Biotecnologica i Molecular (CEBIM), Departament díEnginyeria Química, ETSEIB, Universitat Politècnica de Catalunya, Barcelona, Spain
| | - Miguel Talledo
- Laboratory of Molecular Microbiology and Biotechnology, Faculty of Biological Sciences, Universidad Nacional Mayor de San Marcos, Lima – Peru
| | - Pablo Ramírez
- Laboratory of Molecular Microbiology and Biotechnology, Faculty of Biological Sciences, Universidad Nacional Mayor de San Marcos, Lima – Peru
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12
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Jaramillo ML, Zenteno E, Trigo FJ. [Mechanisms of pathogenicity and adhesion in Pasteurella haemolytica]. Rev Latinoam Microbiol 1999; 41:105-16. [PMID: 10932756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
Pasteurella haemolytica is one of the bacteria most commonly isolated from pneumonic cases in ruminants. Some of the mechanisms and factors involved in the pathogenesis of the disease are partially documented; and the early stages of bacterial colonization have not been totally clarified. Therefore a review is presented in this paper, particularly related with the mechanisms of bacterial pathogenicity responsible of pulmonary damage to ruminants, as well as a detailed analysis of the adherence process.
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13
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Abraham N, Jaramillo ML, Duncan PI, Méthot N, Icely PL, Stojdl DF, Barber GN, Bell JC. The murine PKR tumor suppressor gene is rearranged in a lymphocytic leukemia. Exp Cell Res 1998; 244:394-404. [PMID: 9806790 DOI: 10.1006/excr.1998.4201] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The double-stranded RNA-dependent kinase, PKR, is encoded by an interferon inducible gene and is largely responsible for the anti-viral effects of this cytokine. Recent studies have shown that PKR may also play a role in the regulation of normal cellular growth. Although numerous examples of viral strategies for inactivation of PKR exist, there is no evidence of PKR inactivation in tumors. We demonstrate here that the Tik gene, which encodes a dual-specificity kinase, is the murine homolog of PKR, the dsRNA-dependent kinase, and has undergone a rearrangement of one allele in a murine lymphocytic leukemia cell. We have cloned a cDNA that corresponds to a mutated transcript from the rearranged mPKR gene and show that while the mutated polypeptide retains its ability to dimerize and bind dsRNA, it is catalytically inactive. Although this mutated mPKR lacks apparent dominant-negative function, the net effect of reduced PKR activity in these cells may be significant.
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Affiliation(s)
- N Abraham
- Ottawa Regional Cancer Center Research Laborotories, 501 Smyth Road, Ottawa, Ontario, K1H 8L6, Canada
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Yu Z, Su L, Hoglinger O, Jaramillo ML, Banville D, Shen SH. SHP-1 associates with both platelet-derived growth factor receptor and the p85 subunit of phosphatidylinositol 3-kinase. J Biol Chem 1998; 273:3687-94. [PMID: 9452499 DOI: 10.1074/jbc.273.6.3687] [Citation(s) in RCA: 68] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The Src homology 2 (SH2)-containing protein tyrosine phosphatase 1, SHP-1, is highly expressed in all hematopoietic cells as well as in many non-hematopoietic cells, particularly in some malignant epithelial cell lines. In hematopoietic cells, SHP-1 negatively regulates multiple cytokine receptor pathways. The precise function and the targets of SHP-1 in non-hematopoietic cells, however, are largely unknown. Here we demonstrate that SHP-1 associates with both the tyrosine-phosphorylated platelet-derived growth factor (PDGF) receptor and the p85 subunit of phosphatidylinositol 3-kinase in MCF-7 and TRMP cells. Through the use of mutant PDGF receptors and performing peptide competition for immunoprecipitation, it was determined that SHP-1 independently associates with the PDGF receptor and p85 and that its N-terminal SH2 domain is directly responsible for the interactions. Overexpression of SHP-1 in TRMP cells transfected with the PDGF receptor markedly inhibited PDGF-induced c-fos promoter activation, whereas the expression of three catalytically inactive SHP-1 mutants increased the c-fos promoter activation in response to PDGF stimulation. These results indicate that SHP-1 might negatively regulate PDGF receptor-mediated signaling in these cells. Identification of the association of SHP-1 with the PDGF receptor and p85 in MCF-7 and TRMP cells furthers our understanding of the function of SHP-1 in non-hematopoietic cells.
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Affiliation(s)
- Z Yu
- Department of Medicine, McGill University, Montreal, Quebec H3G 1A4, Canada
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15
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Affiliation(s)
- M L Jaramillo
- Department of Medicine, University of Ottawa, Ontario, Canada
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Jaramillo ML, Afar DE, Almazan G, Bell JC. Identification of tyrosine 620 as the major phosphorylation site of myelin-associated glycoprotein and its implication in interacting with signaling molecules. J Biol Chem 1994; 269:27240-5. [PMID: 7525550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Myelin-associated glycoprotein (MAG) is a myelin-specific cell adhesion molecule of the immunoglobulin supergene family and is tyrosine-phosphorylated in the developing brain. To define the role of MAG in signal transduction, the tyrosine phosphorylation sites were analyzed. The major tyrosine phosphorylation residue was identified as Tyr-620, which was found to interact specifically with the SH2 domains of phospholipase C (PLC gamma). This domain may represent a novel protein binding motif that can be regulated by tyrosine phosphorylation. MAG also specifically bound the Fyn tyrosine kinase, suggesting that MAG serves as a docking protein that allows the interaction between different signaling molecules.
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Affiliation(s)
- M L Jaramillo
- Department of Biochemistry, University of Ottawa, Ontario, Canada
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Jaramillo ML, Afar DE, Almazan G, Bell JC. Identification of tyrosine 620 as the major phosphorylation site of myelin-associated glycoprotein and its implication in interacting with signaling molecules. J Biol Chem 1994. [DOI: 10.1016/s0021-9258(18)46974-8] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
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Lazaris-Karatzas A, Smith MR, Frederickson RM, Jaramillo ML, Liu YL, Kung HF, Sonenberg N. Ras mediates translation initiation factor 4E-induced malignant transformation. Genes Dev 1992; 6:1631-42. [PMID: 1516827 DOI: 10.1101/gad.6.9.1631] [Citation(s) in RCA: 119] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Translation initiation factor eIF-4E binds to the eukaryotic mRNA 5' cap structure (m7 GpppN, where N is any nucleotide). eIF-4E is a limiting factor in translation and plays a key role in regulation of translation. We have shown previously that overexpression of eIF-4E in rodent fibroblasts results in tumorigenic transformation. eIF-4E also exhibits mitogenic activity when microinjected into serum-starved NIH-3T3 cells. To understand the mechanisms by which eIF-4E exerts its mitogenic property, we examined the involvement of the Ras signaling pathway in this activity. Here, we report that Ras is activated in eIF-4E-overexpressing cells, as the proportion of GTP-bound Ras is increased. Overexpression of the negative effector of cellular Ras, GTPase activating protein, causes reversion of the transformed phenotype. Furthermore, we show that neutralizing antibodies to Ras, or a dominant-negative mutant of Ras, inhibit the mitogenic activity of eIF-4E. We conclude that eIF-4E exerts its mitogenic and oncogenic activities by the activation of Ras.
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