1
|
Caballero-Gallardo K, Scudeler EL, Carvalho dos Santos D, Stashenko EE, Olivero-Verbel J. Deleterious Effects of Cymbopogon nardus (L.) Essential Oil on Life Cycle and Midgut of the Natural Predator Ceraeochrysa claveri (Navás, 1911) (Neuroptera: Chrysopidae). Insects 2023; 14:367. [PMID: 37103182 PMCID: PMC10146085 DOI: 10.3390/insects14040367] [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] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 04/03/2023] [Accepted: 04/04/2023] [Indexed: 06/19/2023]
Abstract
Cymbopogon nardus (citronella) essential oil (EO) has been widely used in the cosmetic and food industry due to its repellent and fumigant properties. The aim of this study was to evaluate its effects on the life cycle and midgut morphology of the natural predator Ceraeochrysa claveri. Larvae were fed on sugarcane borer eggs (Diatraea saccharalis) pretreated with citronella EO solutions (1-100 µg/mL in methanol, 5 s) or solvent and air-dried at room temperature for 30 min. Larval and pupal stage duration, the percentage of emergence of the insect, and malformed insects were recorded. One day after adults emerged from their cocoons, adult insects were used to obtain their midgut and analyzed using light microscopy. The chemical composition of C. nardus EO revealed that citronellal (25.3%), citronellol (17.9%), geraniol (11.6%), elemol (6.5%), δ-cadinone (3.6%), and germacrene D (3.4%) were the predominant compounds. Exposure to the EO produced a significant change in development duration for third instar and prepupa of the insect. The observed alterations in the lifecycle included prepupae with no cocoon formation, dead pupa inside the cocoon, and malformed adults. Several injuries in the midgut epithelium of exposed adults were registered, such as detachment of columnar cells leaving only swollen regenerative cells fixed on the basement membrane, and the formation of epithelial folds. In summary, these data suggest that C. nardus oil has adverse effects on the life cycle and midgut morphology of a beneficial predator.
Collapse
Affiliation(s)
- Karina Caballero-Gallardo
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, Zaragocilla Campus, University of Cartagena, Cartagena 130015, Colombia
- Functional Toxicology Group, School of Pharmaceutical Sciences, Zaragocilla Campus, University of Cartagena, Cartagena 130014, Colombia
| | - Elton Luiz Scudeler
- Laboratory of Insects, Department of Structural and Functional Biology, Institute of Biosciences of Botucatu, UNESP—São Paulo State University, Botucatu 18600-000, SP, Brazil
| | - Daniela Carvalho dos Santos
- Laboratory of Insects, Department of Structural and Functional Biology, Institute of Biosciences of Botucatu, UNESP—São Paulo State University, Botucatu 18600-000, SP, Brazil
| | - Elena E. Stashenko
- Chromatography Laboratory, Research Centre of Excellence, CENIVAM, Industrial University of Santander, Bucaramanga 680006, Colombia
| | - Jesus Olivero-Verbel
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, Zaragocilla Campus, University of Cartagena, Cartagena 130015, Colombia
| |
Collapse
|
2
|
Charla R, Patil PP, Bhatkande AA, Khode NR, Balaganur V, Hegde HV, Harish DR, Roy S. In Vitro and In Vivo Inhibitory Activities of Selected Traditional Medicinal Plants against Toxin-Induced Cyto- and Entero- Toxicities in Cholera. Toxins (Basel) 2022; 14. [PMID: 36287918 DOI: 10.3390/toxins14100649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 09/05/2022] [Accepted: 09/09/2022] [Indexed: 12/02/2022] Open
Abstract
Careya arborea, Punica granatum, Psidium guajava, Holarrhena antidysenterica, Aegle marmelos, and Piper longum are commonly used traditional medicines against diarrhoeal diseases in India. This study investigated the inhibitory activity of these plants against cytotoxicity and enterotoxicity induced by toxins secreted by Vibrio cholerae. Cholera toxin (CT) and non-membrane damaging cytotoxin (NMDCY) in cell free culture filtrate (CFCF) of V. cholerae were quantified using GM1 ELISA and cell-based assays, respectively. Hydro-alcoholic extracts of these plants and lyophilized juice of P. granatum were tested against CT-induced elevation of cAMP levels in CHO cell line, binding of CT to ganglioside GM1 receptor and NMDCY-induced cytotoxicity. Significant reduction of cAMP levels in CFCF treated CHO cell line was observed for all extracts except P. longum. C. arborea, P. granatum, H. antidysenterica and A. marmelos showed >50% binding inhibition of CT to GM1 receptor. C. arborea, P. granatum, and P. guajava effectively decreased cytotoxicity and morphological alterations caused by NMDCY in CHO cell line. Further, the efficacy of these three plants against CFCF-induced enterotoxicity was seen in adult mice ligated-ileal loop model as evidenced by decrease in volume of fluid accumulation, cAMP levels in ligated-ileal tissues, and histopathological changes in intestinal mucosa. Therefore, these plants can be further validated for their clinical use against cholera.
Collapse
|
3
|
Lemos LIC, Medeiros MA, Lima JPMS, Teixeira TO, Figueiredo CA, Farias NBS, Silva FS, Abreu BJ, Medeiros KCP, Pedrosa LFC. S-methyl cysteine sulfoxide mitigates histopathological damage, alleviate oxidative stress and promotes immunomodulation in diabetic rats. J Complement Integr Med 2021; 18:719-725. [PMID: 34342948 DOI: 10.1515/jcim-2020-0220] [Citation(s) in RCA: 4] [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] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 10/13/2020] [Indexed: 11/15/2022]
Abstract
OBJECTIVES S-methyl cysteine sulfoxide (SMCS) is a hydrophilic cysteine-containing natural compound found in plants and is known to possess antidiabetic and antioxidant properties. We investigated the antioxidant and immunomodulatory properties of SMCS, as well as histopathological changes in the liver and pancreas in streptozotocin (STZ)-induced diabetic rats. METHODS The rats were divided into the following groups: control (CG), comprising non-diabetic rats; STZ-DB, comprising STZ-induced diabetic rats; and STZ-SMCS, comprising STZ-induced diabetic rats treated with SMCS. SMCS (200 mg/kg) was administered by gavage daily for 30 days. Biochemical and cytokine analyses, catalase (CAT) and superoxide dismutase (SOD) activities assays and histopathological analysis of liver and pancreas tissues were performed. RESULTS SMCS treatment reduced glycemia (p<0.05), decreased triglyceride (p<0.01) and very-low-density lipoprotein (VLDL) levels (p<0.01), and increased SOD and CAT activity in the liver (both p<0.01) compared with STZ-DB group. Higher activity values of IL-10 were observed in the STZ-SMCS group than in the other groups (p<0.001). Liver glycogen was significantly improved in the STZ-SMCS group compared with the STZ-DB group. SMCS also ameliorated damage to pancreatic islets, which resulted in restoration of their morphology. CONCLUSIONS Oral treatment of SMCS showed improvement of the morphological alterations in liver and pancreatic islet in diabetic rats. These beneficial morphological effects of SMCS can be partially explained by IL-10 modulation associated with antioxidant action.
Collapse
Affiliation(s)
- Licyanne Ingrid C Lemos
- Postgraduate Program in Nutrition, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - Matheus Anselmo Medeiros
- Postgraduate Program in Biochemistry, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - João Paulo M S Lima
- Postgraduate Program in Biochemistry, Department of Biochemistry, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - Tatiane O Teixeira
- Institute of Health Sciences, Federal University of Bahia, Salvador, BA, Brazil
| | | | - Naisandra B S Farias
- Department of Morphology, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - Flavio S Silva
- Department of Health Sciences, Federal Rural University of Semiarid Region, Mossoró, RN, Brazil
| | - Bento João Abreu
- Department of Morphology, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | | | - Lucia Fatima C Pedrosa
- Postgraduate Program in Nutrition, Department of Nutrition, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| |
Collapse
|
4
|
Leão LKR, Bittencourt LO, Oliveira AC, Nascimento PC, Miranda GHN, Ferreira RO, Nabiça M, Dantas K, Dionizio A, Cartágenes S, Buzalaf MAR, Crespo-Lopez ME, Maia CSF, Lima RR. Long-Term Lead Exposure Since Adolescence Causes Proteomic and Morphological Alterations in the Cerebellum Associated with Motor Deficits in Adult Rats. Int J Mol Sci 2020; 21:ijms21103571. [PMID: 32443589 PMCID: PMC7279001 DOI: 10.3390/ijms21103571] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 03/11/2020] [Accepted: 03/16/2020] [Indexed: 11/16/2022] Open
Abstract
Lead (Pb) is an environmental contaminant that presents a high risk for human health. We aimed to investigate the possible alterations triggered by the exposure to Pb acetate for a long period in motor performance and the possible relationship with biochemical, proteomic and morphological alterations in the cerebellum of rats. Male Wistar rats were exposed for 55 days, at 50 mg/Kg of Pb acetate, and the control animals received distilled water. Open field (OF) and rotarod tests; biochemistry parameters (MDA and nitrite); staining/immunostaining of Purkinje cells (PC), mature neurons (MN), myelin sheath (MS) and synaptic vesicles (SYN) and proteomic profile were analyzed. Pb deposition on the cerebellum area and this study drove to exploratory and locomotion deficits and a decrease in the number of PC, MN, SYN and MS staining/immunostaining. The levels of MDA and nitrite remained unchanged. The proteomic profile showed alterations in proteins responsible for neurotransmitters release, as well as receptor function and second messengers signaling, and also proteins involved in the process of apoptosis. Thus, we conclude that the long-term exposure to low Pb dose promoted locomotion and histological tracings, associated with alterations in the process of cell signaling, as well as death by apoptosis.
Collapse
Affiliation(s)
- Luana Ketlen Reis Leão
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Pará 66075-110, Brazil; (L.K.R.L.); (L.O.B.); (A.C.O.); (P.C.N.); (G.H.N.M.); (R.O.F.)
| | - Leonardo Oliveira Bittencourt
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Pará 66075-110, Brazil; (L.K.R.L.); (L.O.B.); (A.C.O.); (P.C.N.); (G.H.N.M.); (R.O.F.)
| | - Ana Carolina Oliveira
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Pará 66075-110, Brazil; (L.K.R.L.); (L.O.B.); (A.C.O.); (P.C.N.); (G.H.N.M.); (R.O.F.)
| | - Priscila Cunha Nascimento
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Pará 66075-110, Brazil; (L.K.R.L.); (L.O.B.); (A.C.O.); (P.C.N.); (G.H.N.M.); (R.O.F.)
| | - Giza Hellen Nonato Miranda
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Pará 66075-110, Brazil; (L.K.R.L.); (L.O.B.); (A.C.O.); (P.C.N.); (G.H.N.M.); (R.O.F.)
| | - Railson Oliveira Ferreira
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Pará 66075-110, Brazil; (L.K.R.L.); (L.O.B.); (A.C.O.); (P.C.N.); (G.H.N.M.); (R.O.F.)
| | - Mariane Nabiça
- Laboratory of Applied Analytical Spectrometry, Institute of Exact and Natural Sciences, Federal University of Pará - Belém, Pará 66075-110, Brazil; (M.N.); (K.D.)
| | - Kelly Dantas
- Laboratory of Applied Analytical Spectrometry, Institute of Exact and Natural Sciences, Federal University of Pará - Belém, Pará 66075-110, Brazil; (M.N.); (K.D.)
| | - Aline Dionizio
- Department of Biological Sciences, Bauru Dental School, University of São Paulo - Bauru, São Paulo 17012-901, Brazil; (A.D.); (M.A.R.B.)
| | - Sabrina Cartágenes
- Laboratory of Inflammation and Behavior Pharmacology, Pharmacy Faculty, Institute of Health Sciences, Federal University of Pará - Belém, Pará 66075-110, Brazil; (S.C.); (C.S.F.M.)
| | - Marília Afonso Rabelo Buzalaf
- Department of Biological Sciences, Bauru Dental School, University of São Paulo - Bauru, São Paulo 17012-901, Brazil; (A.D.); (M.A.R.B.)
| | - Maria Elena Crespo-Lopez
- Laboratory of Molecular Pharmacology, Institute of Biological Sciences, Federal University of Pará - Belém, Pará 66075-110, Brazil;
| | - Cristiane S F Maia
- Laboratory of Inflammation and Behavior Pharmacology, Pharmacy Faculty, Institute of Health Sciences, Federal University of Pará - Belém, Pará 66075-110, Brazil; (S.C.); (C.S.F.M.)
| | - Rafael Rodrigues Lima
- Laboratory of Functional and Structural Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Pará 66075-110, Brazil; (L.K.R.L.); (L.O.B.); (A.C.O.); (P.C.N.); (G.H.N.M.); (R.O.F.)
- Correspondence: ; Tel.: +55-91-3201-7891
| |
Collapse
|
5
|
Chauhan D, Srivastava PA, Ritzl B, Yennamalli RM, Cava F, Priyadarshini R. Amino Acid-Dependent Alterations in Cell Wall and Cell Morphology of Deinococcus indicus DR1. Front Microbiol 2019; 10:1449. [PMID: 31333600 PMCID: PMC6618347 DOI: 10.3389/fmicb.2019.01449] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Accepted: 06/11/2019] [Indexed: 11/13/2022] Open
Abstract
Deinococcus radiodurans exhibits growth medium-dependent morphological variation in cell shape, but there is no evidence whether this phenomenon is observed in other members of the Deinococcaceae family. In this study, we isolated a red-pigmented, aerobic, Deinococcus indicus strain DR1 from Dadri wetland, India. This D. indicus strain exhibited cell–morphology transition from rod-shaped cells to multi-cell chains in a growth-medium-dependent fashion. In response to addition of 1% casamino acids in the minimal growth medium, rod-shaped cells formed multi-cell chains. Addition of all 20 amino acids to the minimal medium was able to recapitulate the phenotype. Specifically, a combination of L-methionine, L-lysine, L-aspartate, and L-threonine caused morphological alterations. The transition from rod shape to multi-cell chains is due to delay in daughter cell separation after cell division. Minimal medium supplemented with L-ornithine alone was able to cause cell morphology changes. Furthermore, a comparative UPLC analysis of PG fragments isolated from D. indicus cells propagated in different growth media revealed alterations in the PG composition. An increase in the overall cross-linkage of PG was observed in muropeptides from nutrient-rich TSB and NB media versus PYE medium. Overall our study highlights that environmental conditions influence PG composition and cell morphology in D. indicus.
Collapse
Affiliation(s)
- Deepika Chauhan
- Department of Life Sciences, School of Natural Sciences, Shiv Nadar University, Greater Noida, India
| | - Pulkit Anupam Srivastava
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, India
| | - Barbara Ritzl
- Laboratory for Molecular Infection Medicine Sweden, Department of Molecular Biology, Umeå Centre for Microbial Research, Umeå University, Umeå, Sweden
| | - Ragothaman M Yennamalli
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, India
| | - Felipe Cava
- Laboratory for Molecular Infection Medicine Sweden, Department of Molecular Biology, Umeå Centre for Microbial Research, Umeå University, Umeå, Sweden
| | - Richa Priyadarshini
- Department of Life Sciences, School of Natural Sciences, Shiv Nadar University, Greater Noida, India
| |
Collapse
|
6
|
de Almeida SMV, da Silva LPBG, de Lima LRA, Longato GB, Padilha RJR, Alves LC, Brayner FA, Ruiz ALTG, de Carvalho JE, Beltrão EIC, de Lima MDCA, de Carvalho Júnior LB. Ultrastructural Assessment of 2-(acridin-9-ylmethylene)-N-phenylhydrazinecarbothioamide activity on human breast adenocarcinoma cells. Micron 2016; 90:114-122. [PMID: 27668344 DOI: 10.1016/j.micron.2016.08.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [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: 04/26/2016] [Revised: 07/18/2016] [Accepted: 08/28/2016] [Indexed: 12/31/2022]
Abstract
The aim of the present study was to investigate ultrastructural changes induced by (Z)-2-(acridin-9-ylmethylene)-N-phenylhydrazinecarbothioamide (APHCA) treatment on human breast adenocarcinoma cancer cells MCF-7, besides the evaluation of phosphatidylserine externalization and DNA fragmentation in treated cells. Cell viability analysis demonstrated concentration and time-manner cytotoxicity. Treated MCF-7 cells did not expose phosphatidylserine residues to the external plasma membrane surface and DNA fragmentation was not visualized by electrophoresis. Light microscopy showed compromised cell density and presence of vacuolization after APHCA treatment with 60μM. Scanning and transmission electron microscopies revealed hallmarks of autophagy, namely the presence of membrane bebbling and autophagosomes, besides shrunken cells and cell debris in treated MCF-7 cells. However, more specific tests such as the quantification of mammalian autophagy proteins are necessary to determine the kind of death that is trigged by APHCA.
Collapse
Affiliation(s)
- Sinara Mônica Vitalino de Almeida
- Laboratório de Imunopatologia Keizo Asami (LIKA) and Departamento de Bioquímica, Universidade Federal de Pernambuco (UFPE), Recife 50670-901, PE, Brazil; Faculdade de Ciências, Educação e Tecnologia de Garanhuns (FACETEG), Universidade de Pernambuco (UPE), Garanhuns 55290-000, PE, Brazil.
| | - Lúcia Patrícia Bezerra Gomes da Silva
- Laboratório de Imunopatologia Keizo Asami (LIKA) and Departamento de Bioquímica, Universidade Federal de Pernambuco (UFPE), Recife 50670-901, PE, Brazil
| | - Luiza Rayanna Amorim de Lima
- Laboratório de Imunopatologia Keizo Asami (LIKA) and Departamento de Bioquímica, Universidade Federal de Pernambuco (UFPE), Recife 50670-901, PE, Brazil
| | - Giovanna Barbarini Longato
- Laboratório de Pesquisa em Biologia Celular e Molecular de Tumores e Compostos Bioativos, Universidade São Francisco, Bragança Paulista 12916- 900, SP - Brazil
| | - Rafael José Ribeiro Padilha
- Laboratório de Imunopatologia Keizo Asami (LIKA) and Departamento de Bioquímica, Universidade Federal de Pernambuco (UFPE), Recife 50670-901, PE, Brazil
| | - Luiz Carlos Alves
- Laboratório de Imunopatologia Keizo Asami (LIKA) and Departamento de Bioquímica, Universidade Federal de Pernambuco (UFPE), Recife 50670-901, PE, Brazil; Fundação Oswaldo Cruz (CPqAM/FIOCRUZ), Centro de Pesquisas Aggeu Magalhães, Laboratório de Biologia Celular e Molecular. Avenida Professor Moraes Rêgo s/n, Cidade Universitária, Recife 50740-465, PE, Brazil; Universidade de Pernambuco (UPE), Instituto de Ciências Biológicas, Rua Arnóbio Marques 310, Recife 50100-130, Santo Amaro, PE, Brazil
| | - Fábio André Brayner
- Laboratório de Imunopatologia Keizo Asami (LIKA) and Departamento de Bioquímica, Universidade Federal de Pernambuco (UFPE), Recife 50670-901, PE, Brazil; Fundação Oswaldo Cruz (CPqAM/FIOCRUZ), Centro de Pesquisas Aggeu Magalhães, Laboratório de Biologia Celular e Molecular. Avenida Professor Moraes Rêgo s/n, Cidade Universitária, Recife 50740-465, PE, Brazil
| | - Ana Lucia Tasca Gois Ruiz
- Divisão de Farmacologia e Toxicologia, Centro Pluridisciplinar de Pesquisas Químicas, Biológicas e Agrícolas, Universidade Estadual de Campinas, Campinas 13083-970, SP, Brazil
| | - João Ernesto de Carvalho
- Divisão de Farmacologia e Toxicologia, Centro Pluridisciplinar de Pesquisas Químicas, Biológicas e Agrícolas, Universidade Estadual de Campinas, Campinas 13083-970, SP, Brazil; Faculdade de Ciências Farmacêuticas, Universidade Estadual de Campinas, Campinas 13083-859, SP, Brazil
| | - Eduardo Isidoro Carneiro Beltrão
- Laboratório de Imunopatologia Keizo Asami (LIKA) and Departamento de Bioquímica, Universidade Federal de Pernambuco (UFPE), Recife 50670-901, PE, Brazil
| | | | - Luiz Bezerra de Carvalho Júnior
- Laboratório de Imunopatologia Keizo Asami (LIKA) and Departamento de Bioquímica, Universidade Federal de Pernambuco (UFPE), Recife 50670-901, PE, Brazil
| |
Collapse
|
7
|
Marcos CM, Silva JDFD, Oliveira HCD, Assato PA, Singulani JDL, Lopez AM, Tamayo DP, Hernandez-Ruiz O, McEwen JG, Mendes-Giannini MJS, Fusco-Almeida AM. Decreased expression of 14-3-3 in Paracoccidioides brasiliensis confirms its involvement in fungal pathogenesis. Virulence 2015; 7:72-84. [PMID: 26646480 DOI: 10.1080/21505594.2015.1122166] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
The interaction between the fungal pathogen Paracoccidioides brasiliensis and host cells is usually mediated by specific binding events between adhesins on the fungal surface and receptors on the host extracellular matrix or cell surface. One molecule implicated in the P. brasiliensis-host interaction is the 14-3-3 protein. The 14-3-3 protein belongs to a family of conserved regulatory molecules that are expressed in all eukaryotic cells and are involved in diverse cellular functions. Here, we investigated the relevance of the 14-3-3 protein to the virulence of P. brasiliensis. Using antisense RNA technology and Agrobacterium tumefaciens-mediated transformation, we generated a 14-3-3-silenced strain (expression reduced by ˜55%). This strain allowed us to investigate the interaction between 14-3-3 and the host and to correlate the functions of P. brasiliensis 14-3-3 with cellular features, such as morphological characteristics and virulence, that are important for pathogenesis.
Collapse
Affiliation(s)
- Caroline Maria Marcos
- a Faculdade de Ciências Farmacêuticas de Araraquara; UNESP - Univ Estadual Paulista ; Departamento de Análises Clínicas; Laboratório de Micologia Clínica ; Araraquara , São Paulo , Brazil
| | - Julhiany de Fátima ds Silva
- a Faculdade de Ciências Farmacêuticas de Araraquara; UNESP - Univ Estadual Paulista ; Departamento de Análises Clínicas; Laboratório de Micologia Clínica ; Araraquara , São Paulo , Brazil
| | - Haroldo Cesar de Oliveira
- a Faculdade de Ciências Farmacêuticas de Araraquara; UNESP - Univ Estadual Paulista ; Departamento de Análises Clínicas; Laboratório de Micologia Clínica ; Araraquara , São Paulo , Brazil
| | - Patrícia Akemi Assato
- a Faculdade de Ciências Farmacêuticas de Araraquara; UNESP - Univ Estadual Paulista ; Departamento de Análises Clínicas; Laboratório de Micologia Clínica ; Araraquara , São Paulo , Brazil
| | - Junya de Lacorte Singulani
- a Faculdade de Ciências Farmacêuticas de Araraquara; UNESP - Univ Estadual Paulista ; Departamento de Análises Clínicas; Laboratório de Micologia Clínica ; Araraquara , São Paulo , Brazil
| | - Angela Maria Lopez
- b Unidad de Biología Celular y Molecular; Corporación para Investigaciones Biológicas (CIB) - Medellín , Colombia
| | - Diana Patricia Tamayo
- b Unidad de Biología Celular y Molecular; Corporación para Investigaciones Biológicas (CIB) - Medellín , Colombia
| | - Orville Hernandez-Ruiz
- b Unidad de Biología Celular y Molecular; Corporación para Investigaciones Biológicas (CIB) - Medellín , Colombia.,c Escuela de Microbiología; Universidad de Antioquia ; Medellín , Colombia
| | - Juan G McEwen
- b Unidad de Biología Celular y Molecular; Corporación para Investigaciones Biológicas (CIB) - Medellín , Colombia.,d Facultad de Medicina; Universidad de Antioquia ; Medellín , Colombia
| | - Maria José Soares Mendes-Giannini
- a Faculdade de Ciências Farmacêuticas de Araraquara; UNESP - Univ Estadual Paulista ; Departamento de Análises Clínicas; Laboratório de Micologia Clínica ; Araraquara , São Paulo , Brazil
| | - Ana Marisa Fusco-Almeida
- a Faculdade de Ciências Farmacêuticas de Araraquara; UNESP - Univ Estadual Paulista ; Departamento de Análises Clínicas; Laboratório de Micologia Clínica ; Araraquara , São Paulo , Brazil
| |
Collapse
|
8
|
Sukhoterin AF, Pashchenko PS. Effects of +Gz Loads on Structural Organization of Central Autonomic Nuclei. Bull Exp Biol Med 2015; 159:670-4. [PMID: 26463057 DOI: 10.1007/s10517-015-3044-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Indexed: 10/22/2022]
Abstract
Structural alterations in the central autonomic nuclei (dorsal vagal complex and intermediolateral nucleus) of the centrifuged random-bred male rats subjected to +Gz loads were examined. Acute exposure to gravitational loads predominantly produced the reactive changes in these nuclei, while persistently repeated regular loads resulted in cumulation of the destructive alterations. The structural perturbations in the central autonomic nuclei can disturb the autonomic regulation of physiological functions. The character of such disturbances is partially determined by the peculiarities in structural organization of these nuclei.
Collapse
|
9
|
Ortiz JR, Yamada T, Hsie AW. Induction of the stellate configuration in cultured iris epithelial cells by adenosine and compounds related to adenosine 3':5'-cyclic monophosphate. Proc Natl Acad Sci U S A 1973; 70:2286-90. [PMID: 4365370 PMCID: PMC433719 DOI: 10.1073/pnas.70.8.2286] [Citation(s) in RCA: 36] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Adenosine, dibutyryl cyclic AMP, monobutyryl cyclic AMP, cyclic AMP, and 5'-AMP have a remarkable morphogenetic effect on cultured iris epithelial cells obtained from adult newt. They alter the broad undulating membrane of the cell into branching strands of cytoplasm, a configuration that has been named "stellate." Theophylline, a phosphodiesterase inhibitor also induces the stellate configuration. This transient morphological alteration is detectable by 30 min and becomes maximal 80 min after treatment. In the continued presence of the effective compounds the altered cells return to their normal shape, although the recovery period is variable. The morphological alteration of iris epithelial cells in vitro observed in the present experiment is reminiscent of that which occurs during the dedifferentiation phase in lens regeneration in vivo. These observations suggest that induction of the stellate configuration is relevant to the mechanism of dedifferentiation of newt iris epithelial cells during Wolffian lens regeneration.
Collapse
|