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XXXV Reunión de la Sociedad Argentina de Protozoología
(2025)
Encuentro
Póster presentado por Anaclara Beasley. Participación como investigador responsable del trabajo.
Argentina
Tipo de participación: Poster
Carga horaria: 30
Nombre de la institución promotora: Sociedad Argentina de Protozoología (SAP)
Alcance geográfico: Regional
3 al 5 de noviembre de 2025, Los Cocos, Córdoba, Argentina.
Echinococcus granulosus Antigen B acquires cholesterol from membranes and lipoproteins in vitro
Beasley A, Lagos S, Möller M, Fló M, Carrión F, Julve J, Ferreira AM, Folle AM.
The larva stage (hydatid) of Echinococcus granulosus establishes a chronic infection (cystic echinococcosis) primarily in the host’s liver and lungs. Its adaptation to an environment rich in nutrients has shaped the parasite’s metabolism, resulting in the loss of de novo fatty acid and cholesterol synthesis pathways. Therefore, these essential lipids must be obtained from the host. Antigen B (EgAgB), the main larval lipoprotein, is composed of several protein subunits (EgAgB8/1-5) and diverse lipid classes, including cholesterol and fatty acids. As a member of the cestode-specific hydrophobic ligand-binding protein family, EgAgB is believed to participate in the acquisition and transport of host lipids to the parasite, although the exact mechanisms remain unclear. Our group previously demonstrated that delipidated EgAgB apolipoproteins can bind and transfer fatty acids to artificial phospholipid membranes. More recently, we found that EgAgB promotes the efflux of radiolabelled cholesterol from THP-1-derived macrophages and hepatocytes mainly through a receptor-independent mechanism. Herein, we focused on the cholesterol uptake activity of EgAgB, investigating whether it involves a passive diffusion mechanism from the cell membrane. Moreover, we explored the potential role of plasma lipoproteins as an additional source of host cholesterol, given their described ability to exchange lipids.
EgAgB's capacity to acquire cholesterol via passive diffusion from the membrane was analysed using liposomes as a lipid bilayer model. POPC (1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine) liposomes were loaded with fluorescent cholesterol and incubated overnight with recombinant EgAgB8/1 (rEgAgB). After affinity purification of rEgAgB, eluted fractions were analysed by spectroscopy for liposome-scattering signal and fluorescence spectrum. The detection of fluorescent cholesterol, but not of liposomes, in the eluted rEgAgB supported EgAgB’s ability to extract cholesterol directly from lipid bilayers, without a receptor-driven mechanism. We conducted similar experiments to assess whether hHDL could serve as another cholesterol source, loading it with fluorescent cholesterol. rEgAgB acquired cholesterol from hHDL and maintained a strong binding, as the dissociation of the two lipoproteins required low pH conditions.
Finally, studies for analysing the ability of rEgAgB to deliver cholesterol to liposomes or lipoproteins are in progress.
Altogether, these findings support that EgAgB can interact with both cell membranes and hHDL to acquire cholesterol—an essential lipid for the hydatid—highlighting its potential role in lipid metabolism and in E. granulosus adaptation to its host.
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XXXV Reunión anual de la Sociedad Argentina de Protozoología
(2025)
Encuentro
Expositor oral y en formato póster. Participación como investigador responsable del trabajo.
Argentina
Tipo de participación: Expositor oral
Carga horaria: 30
Nombre de la institución promotora: Sociedad Argentina de Protozoología
Alcance geográfico: Regional
Areas de conocimiento:
Ciencias Naturales y Exactas / Ciencias Biológicas
/ Otros Tópicos Biológicos
/ Bioquímica e Inmunología
3 al 5 de niviembre de 2025, Los Cocos, Córdoba, Argentina.
Dual role of Echinococcus granulosus antigen B: a parasite lipoprotein with immunoregulatory and lipid acquisition properties in myeloid cells.
Folle AM, Lagos S, Beasley A, Zamarreño F, Carrión F, Fló M, Costabel M, Maccioni M, Julve J, Ferreira AM.
The larval stage of Echinococcus granulosus causes cystic echinococcosis, a chronic infection that tightly modulates the host´s immune response. Adapted to a nutrient-rich environment, the parasite has lost the ability to synthesize fatty acids and cholesterol de novo, instead relying on the uptake of host-derived lipids through the action of specialized proteins. Antigen B (EgAgB), the main larval lipoprotein, belonging to the cestode-specific hydrophobic ligand-binding protein family, is believed to facilitate the uptake and transport of host lipids essential for the parasite. It is exported to host tissues and resembles HDL in physicochemical properties and anti-inflammatory effects on innate cells.
Our investigation on EgAgB´s biological activities revealed that both native and recombinant lipoproteins induced a modest activation of dendritic cell (DC), attributed to LPS contamination, while suppressing LPS-induced cytokine (IL1, IL6, IL12, IFN) and nitric oxide production in DC and macrophages (MQ) by disrupting TLR4 dimerization. In the current work, we confirmed that in an LPS stimulation context, EgAgB does not affect ATP potentiation of IL1 secretion linked to inflammasome activation in MQ. Moreover, EgAgB outcompeted LPS for binding to DC/MQ and inhibited LPS-driven cytokine release more effectively than HDL. Binding assays and light scattering approaches confirmed EgAgB’s superior LPS-binding ability, supported by docking analysis showing a defined LPS-binding interface in the EgAgB8/1 subunit.
Regarding lipid handling, fluorescence assays showed that EgAgB acquired cholesterol from HDL as well as from MQ, suggesting additional interactions with host cells that may have functional relevance and are currently under investigation.
Our findings reveal novel activities for EgAgB: an extracellular LPS scavenger property that dampens TLR4-mediated inflammation in myeloid cells and a cholesterol uptake capacity from host lipoproteins/cells. Altogether, results support a dual role of EgAgB in E. granulosus biology, contacting host components to acquire essential lipids while contributing to parasite protection from host inflammation.
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XLIX Congress of the Brazilian Society of Immunology (SBI)
(2025)
Congreso
Participación como investigador responsable del trabajo
Brasil
Tipo de participación: Poster
Carga horaria: 40
Nombre de la institución promotora: Sociedad Brazileña de Inmunología (SBI)
Alcance geográfico: Regional
Palabras Clave:
Echinococcus granulosus antigen B immunomodulation lipid metabolism
Areas de conocimiento:
Ciencias Naturales y Exactas / Ciencias Biológicas
/ Otros Tópicos Biológicos
/ Bioquímica e Inmunología
13 al 17 de octubre de 2025, Búzios, Brasil.
Echinococcus granulosus antigen B: a parasite lipoprotein with immunoregulatory and lipid acquisition properties in myeloid cells
Folle M, Lagos S, Beasley A, Zamarreño F, Carrión C, Fló M, Costabel C, Maccioni M, Julve J, Ferreira AM.
The larval stage of Echinococcus granulosus, responsible for cystic echinococcosis, establishes a chronic infection that tightly modulates host immunity. Adapted to a nutrient-rich environment, the parasite has lost its de novo synthesis of fatty acids and cholesterol, relying on host-derived lipids via specialized proteins. Antigen B (EgAgB), the main larval lipoprotein belonging to the cestode-specific hydrophobic ligand-binding protein family, is exported to host tissues and resembles HDL in physicochemical properties and anti-inflammatory actions on innate cells.
Our investigation on EgAgB´s biological activities revealed that both native and recombinant lipoproteins induced a modest dendritic cell (DC) activation, attributed to LPS contamination, while suppressing LPS- induced cytokine (IL1beta, IL6, IL12, IFNbeta) and nitric oxide production in DC and macrophages (MQ) by disrupting TLR4 dimerization. In the current work, we confirmed that in an LPS stimulation context EgAgB
does not affect ATP potentiation of IL1beta secretion linked to inflammasome activation in MQ. Moreover, EgAgB outcompeted LPS for binding to DC/MQ and inhibited LPS-driven cytokine release more effectively than HDL. Binding assays and light scattering approaches confirmed EgAgB’s superior LPS-binding ability, supported by docking analysis showing a defined LPS-binding interface in EgAgB8/1 subunit. Regarding lipid handling, EgAgB acquired cholesterol from HDL and MQ, suggesting additional interactions with host cells that may have functional relevance and are currently under investigation.
Our findings reveal novel activities for EgAgB: an extracellular LPS scavenger property that dampens TLR4- mediated inflammation in myeloid cells and a cholesterol uptake capacity from host lipoproteins/cells. Altogether, results support a dual role of EgAgB in E. granulosus biology, contacting host components to acquire essential lipids while contributing to parasite protection from host inflammation.
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14th Latin American and Caribbean Immunology Congress
(2024)
Congreso
Participación como integrante del equipo de trabajo
Argentina
Tipo de participación: Poster
Nombre de la institución promotora: Latin American and Caribbean Immunology
Alcance geográfico: Internacional
4 al 8 de noviembre de 2024, Buenos Aires, Argentina.
One parasite lipoprotein, two functions: Antigen B uptakes cholesterol and acts as an efficient LPS-scavenger.
Lagos S, Folle AM, Beasley A, Fló M, Carrión F, Pritsch O, Dutto J, Maccioni M, Julve J, Ferreira AM.
Poster presentado por Sofía Lagos.
The larvae (hydatid) of Echinococcus granulosus s.l. grows within the host´s viscera causing a chronic infection. This highlights an excellent parasite adaptation to its hosts, involving a tight modulation of the immune response with several mechanisms likely involved. An E. granulosus lipoprotein, called antigen B (EgAgB), was postulated as immunomodulator because of its capacity to interfere with innate cell activation in vitro and in vivo. EgAgB belongs to a cestode-specific family of hydrophobic ligands binding proteins, having putative participation in acquiring lipids not synthesized by Echinococcus (cholesterol and fatty acids). EgAgB physicochemical characterization (size, lipid/protein ratio, apolipoprotein secondary structure) revealed similarities to HDL, described as a plasma lipophilic PAMP scavenger and anti-inflammatory lipoprotein due to its ability to remove cholesterol from innate cells.
To address EgAgB mechanisms involved in innate cell modulation, we compare in vitro EgAgB and HDL effects on dendritic cells (BMDC) activation. EgAgB was significantly more efficient in inhibiting LPS-induced IL6/IL12 secretion on BMDC than HDL. Unlike HDL, EgAgB did not alter LTA-induced cytokine secretion, revealing a specificity for LPS interference. Of note, EgAgB diminished LPS-induced TLR4 dimerization, an early step of TLR4 activation pathway, and bound equally to TLR4KO and wild-type BMDC suggesting it controls activation in a receptor independent manner, previous to LPS-TLR4 interaction. Additionally, EgAgB inhibited LPS binding to BMDC, possibly neutralizing LPS in the milieu as HDL3 does. A direct interaction between EgAgB and LPS was observed by an ELISA-like assay, supporting LPS neutralization might contribute to EgAgB´s modulatory effects on innate cells. Whether EgAgB neutralizes/carries other immune-relevant molecules deserves analysis. Notably, EgAgB removed cholesterol from macrophages and hepatocytes, by an SR-B1 and ABCA-1 independent mechanism (unaltered by specific inhibitors), suggesting an efficient passive diffusion mechanism. Further studies are needed to elucidate if EgAgB's ability to uptake cellular cholesterol impact innate cell activation.
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14th Latin American and Caribbean Immunology Congress
(2024)
Congreso
Participación como investigador responsable del trabajo
Argentina
Tipo de participación: Poster
Nombre de la institución promotora: Latin American and Caribbean Immunology
Alcance geográfico: Internacional
Areas de conocimiento:
Ciencias Naturales y Exactas / Ciencias Biológicas
/ Otros Tópicos Biológicos
/ Bioquímica e Inmunología
4 al 8 de noviembre de 2024, Buenos Aires, Argentina.
Shared roles between Echinococcus granulosus Antigen B and vertebrates HDL: immunoregulation and lipid acquisition properties.
Beasley A, Lagos S, Fló M, Carrión F, Julve J, Pritsch O, Ferreira AM, Folle AM.
The larva of Echinococcus granulosus causes cystic echinococcosis, a chronic viscera infection (mainly liver) implying a tight control of host immunity. Its location in a medium rich in nutrients shaped parasite's metabolism, losing de novo fatty acid and cholesterol synthesis pathways together with the expression of proteins capable of capturing/transporting essential lipids. Antigen B (EgAgB), the main larva lipoprotein, is a member of the cestode-specific hydrophobic ligand-binding protein family, being exported through unknown mechanisms to host tissues. EgAgB resembles vertebrates HDL in molecular size, lipid:protein ratio, lipids heterogeneity and ?-helix predominance on its apolipoproteins. Moreover, EgAgB and HDL share anti-inflammatory properties on innate cells. This work goes deeper into EgAgB's biological activities, in comparison with HDL. Results showed that native EgAgB and HDL modulate LPS-driven macrophage activation, with lower EgAgB concentration needed to reach similar IL-6 inhibition. In competition assays, both lipoproteins decreased LPS binding to macrophages, suggesting EgAgB interacts with LPS interfering with its cellular recognition and inflammatory consequences, as HDL does. Besides, in direct binding analyses, EgAgB bound LPS in a larger extent than HDL, interaction favoured by the presence of LBP. An EgAgB scavenger activity of enteric LPS that reaches the liver could contribute to decrease harmful consequences of LPS-driven inflammation in the parasite vicinity, a physiological role that HDL plays in this organ. The EgAgB ability to scavenger other PAMPs or DAMPS requires further studies. On the other hand, since EgAgB carries host cholesterol and plasma lipoproteins can exchange lipids, we analysed EgAgB's ability to uptake cholesterol from HDL. EgAgB captured fluorescent cholesterol from previously loaded HDL, suggesting additional interactions between EgAgB and HDL for parasite cholesterol acquisition. Altogether, results support a dual role of EgAgB in E. granulosus biology, contacting host components to acquire essential lipids while contributing to protecting the parasite from host inflammation.
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XLVII Congress of the Brazilian Society of Immunology
(2023)
Congreso
Participación como presentador del trabajo
Brasil
Tipo de participación: Poster
Nombre de la institución promotora: Sociedad Brasileña de Inmunología (SBI)
Alcance geográfico: Regional
1 al 6 de octubre de 2023, Ouro Preto, Minas Gerais, Brasil.
A potential metabolic and immunoregulatory role of antigen B lipoprotein in Echinococcus granulosus biology: similarities and differences with plasma HDL.
Folle AM, Beasley A, LagosS, Fló M, Carrión F, Julve J, Pritsch O, Ferreira AM.
The larva of the parasite Echinococcus granulosus causes cystic echinococcosis, a chronic infection implying a tight control of host immunity. Its location in a medium rich in nutrients shaped parasite's metabolism, losing de novo fatty acid and cholesterol synthesis pathways together with the expression of proteins capable of capturing and transporting essential lipids. One of these proteins, antigen B (EgAgB), is a member of the cestode-specific hydrophobic ligand-binding protein family with diagnostic value. In its native form, EgAgB is a 230 kDa lipoprotein containing ~50% lipids in mass. We demonstrated that EgAgB bounds to monocyte and macrophages in a dose-dependent manner using receptors shared with HDL. In addition, we recently found that EgAgB discharges cholesterol from macrophages, mimicking HDL capacity. Since HDL-induced cholesterol efflux on innate cells seems to be linked to modulation, EgAgB effects on the inflammatory activation of macrophages were studied in comparison with HDL. When co-administered with LPS, EgAgB inhibited macrophages activation decreasing: in vitro IL-1?, IL-6, IL-12, IFN-? and ?NO and in vivo IL-6 and IL-12 (together with a potentiation of IL-10) at 4 h post-injection, and MHC-II, CD40 and CD86 in resident macrophages at 24 h post-injection in the peritoneal cavity. Furthermore, EgAgB and LPS exhibited in vitro as well as in vivo mutual interference in cell recognition and/or effects, indicating the involvement of a common cell receptor and/or the ability of EgAgB to bind LPS. In this scenario, a putative EgAgB-LPS interaction supporting a scavenger activity, as recently described for HDL, is being explored. Contrasting with EgAgB, in the assayed conditions HDL did not modulate in vitro LPS-activation of macrophages, suggesting differences between their interactions with macrophages. Overall, our results support a potential metabolic and immunoregulatory role of EgAgB in E. granulosus biology, mimicking some HDL properties.
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XLVII Congress of the Brazilian Society of Immunology
(2023)
Congreso
Participación como autor del trabajo
Brasil
Tipo de participación: Poster
Nombre de la institución promotora: Sociedad Brasilera de Inmunología
Alcance geográfico: Regional
Areas de conocimiento:
Ciencias Naturales y Exactas / Ciencias Biológicas
/ Otros Tópicos Biológicos
/ Inmunología parasitaria
1 al 6 de octubre de 2023, Ouro Preto, Minas Gerais, Brasil.
The parasite lipoprotein Antigen B: a possible link between immunoregulation and lipid metabolism .
Lagos S, Folle AM, Fló M, Carrión C, Pritsch O, Dutto J, Maccioni M, Julve J, Ferreira AM.
The larvae of Echinococcus granulosus s.l. parasite (hydatid) grows in the viscera of the intermediate hosts (domestic ungulates, accidentally humans), causing a chronic infection. The hydatid is well adapted to its host since it is able to control inflammation and adquiere host lipids (cholesterol) that the parasite cannot synthesize. Antigen B (EgAgB) is a 230 kDa lipoprotein containing around 50% in mass of lipids (polar and neutral), resembling the protein/lipid ratio of HDL3. EgAgB protein moiety is encoded by five genes (EgAgB1-5) belonging to a cestode-specific family of hydrophobic ligands binding proteins of unknown function. EgAgB interfered with dendritic cell (DC) activation in vitro, but the modulatory mechanisms involved have not been elucidated. Since HDL's ability to remove cholesterol has been related to immunomodulation effects in innate cells, we hypothesize that EgAgB uptakes host cholesterol from myeloid innate cells, including DCs, contributing to regulate inflammatory activation pathways. We found that native EgAgB bound to DCs in a TLR4 and TLR2-independent manner. When co-administered with LPS, EgAgB inhibited TLR4 dimerization and cytokine (IL6, IL12, IFN?) secretion, but not CD86 and CD40 expression in DCs. Furthermore, EgAgB inhibited LPS binding to DCs, suggesting it might neutralize LPS in the milieu as HDL3 does, contributing to their inhibitory effects. In addition, in a mixed lymphocyte reaction, EgAgB seemed to favor a Th2-type differentiation profile. On the other hand, EgAgB promoted cholesterol efflux from THP-1 macrophages similarly to HDL and HDL3. An increase of ABCA1 expression (induced by an LXR agonist) or blocking ABCA1-mediated efflux (by BLT4 inhibitor) did not affect EgAgB's ability to efflux cholesterol from macrophages, suggesting the involvement of other receptors. Further studies are needed to examine a putative relation between EgAgB's ability to efflux cholesterol and to regulate the activation of innate cells.
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XLVII Congress of the Brazilian Society of Immunology
(2023)
Congreso
Participación como expositor oral en inglés del trabajo
Brasil
Tipo de participación: Expositor oral
Nombre de la institución promotora: Sociedad Brasilera de Inmunología
Alcance geográfico: Regional
Areas de conocimiento:
Ciencias Naturales y Exactas / Ciencias Biológicas
/ Otros Tópicos Biológicos
/ Inmunología parasitaria
1 al 6 de octubre de 2023, Ouro Preto, Minas Gerais, Brasil.
A potential metabolic and immunoregulatory role of antigen B lipoprotein in Echinococcus granulosus biology: similarities and differences with plasma HDL.
Folle AM, Beasley A, Lagos S, Fló M, Carrión F, Julve J, Pritsch O, Ferreira AM.
The larva of the parasite Echinococcus granulosus causes cystic echinococcosis, a chronic infection implying a tight control of host immunity. Its location in a medium rich in nutrients shaped parasite's metabolism, losing de novo fatty acid and cholesterol synthesis pathways together with the expression of proteins capable of capturing and transporting essential lipids. One of these proteins, antigen B (EgAgB), is a member of the cestode-specific hydrophobic ligand-binding protein family with diagnostic value. In its native form, EgAgB is a 230 kDa lipoprotein containing ~50% lipids in mass. We demonstrated that EgAgB bounds to monocyte and macrophages in a dose-dependent manner using receptors shared with HDL. In addition, we recently found that EgAgB discharges cholesterol from macrophages, mimicking HDL capacity. Since HDL-induced cholesterol efflux on innate cells seems to be linked to modulation, EgAgB effects on the inflammatory activation of macrophages were studied in comparison with HDL. When co-administered with LPS, EgAgB inhibited macrophages activation decreasing: in vitro IL-1?, IL-6, IL-12, IFN-? and ?NO and in vivo IL-6 and IL-12 (together with a potentiation of IL-10) at 4 h post-injection, and MHC-II, CD40 and CD86 in resident macrophages at 24 h post-injection in the peritoneal cavity. Furthermore, EgAgB and LPS exhibited in vitro as well as in vivo mutual interference in cell recognition and/or effects, indicating the involvement of a common cell receptor and/or the ability of EgAgB to bind LPS. In this scenario, a putative EgAgB-LPS interaction supporting a scavenger activity, as recently described for HDL, is being explored. Contrasting with EgAgB, in the assayed conditions HDL did not modulate in vitro LPS-activation of macrophages, suggesting differences between their interactions with macrophages. Overall, our results support a potential metabolic and immunoregulatory role of EgAgB in E. granulosus biology, mimicking some HDL properties.
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LXX Reunión Anual de la Sociedad Argentina de Inmunología
(2022)
Congreso
Participación como autor del trabajo
Argentina
Tipo de participación: Poster
Carga horaria: 40
Nombre de la institución promotora: Sociedad Argentina de Inmunología
Alcance geográfico: Regional
Palabras Clave:
Echinococcus granulosus Antígeno B Células dendríticas LPS Inmunomodulación
Areas de conocimiento:
Ciencias Naturales y Exactas / Ciencias Biológicas
/ Otros Tópicos Biológicos
/ Inmunología
15 al 19 de noviembre de 2022, Mar del Plata, Argentina.
Echinococcus granulosus antigen B modulates LPS-driven dendritic cell activation.
Lagos S, Folle AM, Fló M, Carrión C, Pritsch O, Dutto J, Maccioni M, Julve J, Ferreira AM.
Póster presentado por Sofía Lagos.
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LXX Reunión Anual de la Sociedad Argentina de Inmunología
(2022)
Congreso
Participación como presentador del trabajo
Argentina
Tipo de participación: Poster
Nombre de la institución promotora: Sociedad Argentina de Inmunología
Alcance geográfico: Regional
Palabras Clave:
Adaptación hospedero-parásito Inmunometabolismo
Areas de conocimiento:
Ciencias Naturales y Exactas / Ciencias Biológicas
/ Ciencias Biológicas
/ Inmunometabolismo
15 al 19 de noviembre de 2022, Mar del Plata, Argentina.
A potential metabolic and immunoregulatory role of antigen B lipoprotein in Echinococcus granulosus biology.
Folle AM, Lagos S, Fló M, Carrión F, Julve J, Pritsch O, Ferreira AM.
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II Congreso Nacional de Bociencias
(2019)
Congreso
Participación como expositor oral en español del trabajo
Uruguay
Tipo de participación: Expositor oral
Nombre de la institución promotora: Sociedad Uruguaya de Biociencias
Alcance geográfico: Nacional
Areas de conocimiento:
Ciencias Naturales y Exactas / Ciencias Biológicas
/ Otros Tópicos Biológicos
/ Inmunología parasitaria
4 al 7 de Setiembre de 2019, Montevideo, Uruguay.
Propiedades inmunomoduladoras del Antígeno B de Echinococcus granulosus: estudios in vitro e in vivo.
Folle AM, Lagos S, Fló M, Carrión F, Pritsch O, Ferreira AM.
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XLIII Congreso de la Sociedad Brasilera de Inmunología
(2018)
Congreso
Participación como presentador del trabajo
Brasil
Tipo de participación: Poster
Nombre de la institución promotora: Sociedad Brasilera de Inmunología
Alcance geográfico: Internacional
Areas de conocimiento:
Ciencias Naturales y Exactas / Ciencias Biológicas
/ Otros Tópicos Biológicos
/ Inmunología
1 al 5 de octubre de 2018, Ouro Preto, Minas Gerais, Brasil.
Immuno-modulatory activities of Echinococcus granulosus antigen B.
Folle AM, Lagos S, Fló M, Carrión F, Pritsch O, Ferreira AM.
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XLIII Congreso de la Sociedad Brasilera de Inmunología
(2018)
Congreso
Participación como autor del trabajo
Brasil
Tipo de participación: Poster
Nombre de la institución promotora: Sociedad Brasilera de Inmunología
Alcance geográfico: Regional
Areas de conocimiento:
Ciencias Naturales y Exactas / Ciencias Biológicas
/ Otros Tópicos Biológicos
/ Inmunología
1 al 5 de octubre de 2018, Ouro Preto, Minas Gerais, Brasil.
Echinococcus granulosus antigen B is a novel ligand for C-reactive protein.
Silva V, Ramos AL, Folle AM, Lagos S, Dee V, Ferreira AM.
Póster presentado por Ana María Ferreira.
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I Congreso Nacional de Biociencias
(2017)
Congreso
Participación como autor del trabajo y co-tutoría del presentador
Uruguay
Tipo de participación: Poster
Carga horaria: 30
Nombre de la institución promotora: Sociedad Uruguaya de Biociencias
Alcance geográfico: Nacional
Palabras Clave:
Echinococcus granulosus Antígeno B Macrófagos Inmunorregulación
Areas de conocimiento:
Ciencias Naturales y Exactas / Ciencias Biológicas
/ Biología Celular, Microbiología
/ Inmunología parasitaria
12 al 14 de mayo de 2017, Canelones, Uruguay.
Estudio de la capacidad del Antígeno B de modular la expresión de citoquinas en macrófagos.
Lagos S, Folle AM, Silva V, Fló M, Carrión F, Pritsch O, Ferreira AM.
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Seminarios del Departamento de Biociencias de Facultad de Química
(2016)
Seminario
Divulgación oral del trabajo de posgrado
Uruguay
Tipo de participación: Expositor oral
Nombre de la institución promotora: Departamento de Biociencias de Facultad de Química - DEPBIO
Alcance geográfico: Local
Caracterización estructural y funcional del antígeno B del parásito Echinococcus granulosus.
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XLI Congress of the Brazilian Society of Immunology 2016
(2016)
Congreso
Participación como autor del trabajo
Brasil
Tipo de participación: Poster
Carga horaria: 45
Nombre de la institución promotora: Sociedad Brasilera de Inmunología
Alcance geográfico: Internacional
Palabras Clave:
Echinococcus granulosus Antigen B Lipoprotein Functional characterization Macrophages
Areas de conocimiento:
Ciencias Naturales y Exactas / Ciencias Biológicas
/ Biología Celular, Microbiología
/ Inmunología parasitaria
29 de octubre al 2 de noviembre de 2016, Campos do Jordão, Brasil.
Functional characterization of Echinococcus granulosus Antigen B.
Silva V, Folle M, Lagos S, Ramos AL, Ferreira AM.
Trabajo presentado por Valeria Silva.
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XXVII Reunión Anual de la Sociedad Argentina de Protozoología
(2015)
Encuentro
Participación como expositor oral en español del trabajo
Argentina
Tipo de participación: Expositor oral
Carga horaria: 25
Nombre de la institución promotora: Sociedad Argentina de Potozoología
Alcance geográfico: Internacional
Palabras Clave:
Lipoproteínas Echinococcus granulosus Antígeno B Espectrometría de masa Unión a células HLBP
Areas de conocimiento:
Ciencias Naturales y Exactas / Ciencias Biológicas
/ Bioquímica y Biología Molecular
/ Biología parasitaria
Trabajo presentado también en formato póster.
El antígeno B de Echinococcus granulosus: una proteína de unión a lípidos en la interfaz hospedero-parásito.
Folle AM, Silva V, Ferreira AM.
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XV Jornadas de la Sociedad Uruguaya de Biociencias
(2014)
Encuentro
Participación como presentador del trabajo
Uruguay
Tipo de participación: Poster
Nombre de la institución promotora: Sociedad Uruguaya de Biociencias
Alcance geográfico: Nacional
Palabras Clave:
Echinococcus granulosus Antígeno B Lipoproteína Unión a células Receptores celulares
Areas de conocimiento:
Ciencias Naturales y Exactas / Ciencias Biológicas
/ Bioquímica y Biología Molecular
/ Biología parasitaria
PREMIO A MEJOR POSTER DE LAS JORNADAS.
5 al 7 de setiembre de 2014, Maldonado, Uruguay.
El antígeno B de Echinococcus granulosus: una proteína de unión a lípidos en la interfaz hospedero-parásito.
Folle AM, Silva V, Iwai L, Kitano E, Zamarreño F, Costabel M, Batthyány C, Córsico B, Ferreira AM.
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XXIX Jornadas Nacionales de Hidatidosis. XXXVII Jornadas Internacionaes de Hidatidología. I Reunión de Echinococcosis Neotropical del Cono Sur Y Panamazonia
(2014)
Congreso
Participación como autor del trabajo
Argentina
Tipo de participación: Expositor oral
Carga horaria: 30
Nombre de la institución promotora: Administración Nacional de Laboratorios e Institutos de Salud (ANLIS)
Alcance geográfico: Regional
XXIX Jornadas Nacionales de Hidatidosis. XXXVII Jornadas Internacionaes de Hidatidología. I Reunión de Echinococcosis Neotropical del Cono Sur Y Panamazonia. Administración Nacional de Laboratorios e Institutos de Salud (ANLIS) "Dr. Carlos G. Malbrán. 8 al 10 Octubre de 2014, Buenos Aires, Argentina.
Proteínas que unen lípidos de Echinococcus spp.
Pórfido JL, Silva V, Folle AM, Brehm K, Ferreira AM, Rosenzvit M, Córsico B.
Trabajo presentado por Bettina Córsico.
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8th International Conference on Lipid binding proteins
(2013)
Congreso
Participación como presentador del trabajo
Argentina
Tipo de participación: Poster
Nombre de la institución promotora: International Conference on Lipid binding proteins
Alcance geográfico: Internacional
Palabras Clave:
Echinococcus granulosus Antigen B Lipoprotein Protein and lipid composition Cell interactions Celular receptors
Areas de conocimiento:
Ciencias Naturales y Exactas / Ciencias Biológicas
/ Bioquímica y Biología Molecular
/ Biología parasitaria
3 al 6 de noviembre de 2013, La Plata, Argentina.
Structural and functional characterization of Echinococcus granulosus antigen B.
Folle AM, Silva V, Lima A, Gil M, Ramos AL, Córsico B, Batthyány B, Ferreira AM.
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8th International Conference on Lipid binding proteins
(2013)
Congreso
Participación como autor del trabajo
Argentina
Tipo de participación: Expositor oral
Nombre de la institución promotora: International Conference on Lipid binding proteins
Alcance geográfico: Internacional
Palabras Clave:
Echinococcus granulosus Antigen B Lipoprotein Cestodes Parasite-host interaction
Areas de conocimiento:
Ciencias Naturales y Exactas / Ciencias Biológicas
/ Bioquímica y Biología Molecular
/ Biología parasitaria
3 al 6 de noviembre de 2013, La Plata, Argentina.
Echinococcus granulosus antigen B: a novel anti-inflammatory lipoprotein at the host-parasite interface.
Silva V, Folle AM, Ramos AL, Obal G, Lima A, Gil M, Batthyany C, González G, Salinas G, Córsico B, Ferreira AM.
Trabajo presentado por Ana María Ferreira.
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XIV Jornadas de la Sociedad Uruguaya de Biociencias
(2012)
Congreso
Participación como expositor oral en español del trabajo
Uruguay
Tipo de participación: Expositor oral
Nombre de la institución promotora: Sociedad Uruguaya de Biociencias
Alcance geográfico: Nacional
Palabras Clave:
Lipoproteínas Echinococcus granulosus Cestodos Antígeno B Interacción con sistema inmune
Areas de conocimiento:
Ciencias Naturales y Exactas / Ciencias Biológicas
/ Bioquímica y Biología Molecular
/ Biología parasitaria
Asistí a las XIV Jornadas de la Sociedad Uruguaya de Biociencias en calidad de conferencista. Fui seleccionada por la mesa de Parasitología para realizar la presentación oral de mi trabajo de Maestría llevado a cabo hasta el momento.
Hacia la caracterización estructural y funcional del antígeno B del parásito Echinococcus granulosus.
Folle AM, Lima A, Silva V, Ramos AL, Córsico B, Batthyány C, Ferreira AM.
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Molecular and Cellular Biology of Helminth Parasites VII
(2012)
Congreso
Participación como autor del trabajo
Grecia
Tipo de participación: Poster
Nombre de la institución promotora: Molecular and Cellular Biology of Helminth Parasites
Alcance geográfico: Internacional
Palabras Clave:
Echinococcus granulosus Antigen B Lipoprotein Lipid moiety characterisation
Areas de conocimiento:
Ciencias Naturales y Exactas / Ciencias Biológicas
/ Bioquímica y Biología Molecular
/ Biología parasitaria
2 al 7 de setiembre de 2012, Hydra, Grecia.
Characterisation of the native lipid moiety of Echinococcus granulosus antigen B.
Obal G, Silva V, Folle AM, Ferreira AM.
Trabajo presentado por Ana María Ferreira.
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Jornada Expo Cierre 2011
(2011)
Encuentro
Participación como presentador del trabajo
Uruguay
Tipo de participación: Poster
Nombre de la institución promotora: Programa de Apoyo a la Investigación Estudiantil 2009, PAIE-CSIC
Alcance geográfico: Nacional
Palabras Clave:
Neurulación Defectos en el cierre del tubo neural MARCKS Cultivo de embriones Teratógenos PKC
Areas de conocimiento:
Ciencias Naturales y Exactas / Ciencias Biológicas
/ Biología del Desarrollo
/ Desarrollo del Sistema Nervioso
Caracterización funcional de MARCKS durante el cierre del tubo neural.
Gonzalo Aparicio y Maite Folle - Facultad de Ciencias.
Docente orientador: Flavio Zolessi.
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7as Jornadas de la SBBM
(2011)
Encuentro
Participación como presentador del trabajo
Uruguay
Tipo de participación: Poster
Nombre de la institución promotora: Sociedad de Bioquímica y Biología Molecular
Alcance geográfico: Local
Palabras Clave:
Lipoproteínas Echinococcus granulosus Cestodos Antígeno B Electroforesis bidimensional Espectrometría de masas
Areas de conocimiento:
Ciencias Naturales y Exactas / Ciencias Biológicas
/ Bioquímica y Biología Molecular
/ Biología parasitaria
Hacia la caracterización estructural y funcional del antígeno B del parásito Echinococcus granulosus.
Folle AM, Silva V, Lima A, Batthyány C, Córsico B y Ferreira AM.
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Jornadas Internas del Instituto Pasteur de Montevideo
(2011)
Encuentro
Participación como presentador del trabajo
Uruguay
Tipo de participación: Poster
Nombre de la institución promotora: Instituto Pasteur de Montevideo
Alcance geográfico: Local
Palabras Clave:
Lipoproteínas Echinococcus granulosus Cestodos Antígeno B Electroforesis bidimensional Espectrometría de masas
Areas de conocimiento:
Ciencias Naturales y Exactas / Ciencias Biológicas
/ Bioquímica y Biología Molecular
/ Biología parasitaria
3 y 4 de noviembre de 2011, Colonia, Uruguay.
Structural and functional characterisation of Echinococcus granulosus antigen B.
Folle AM, Lima A, Silva V, Córsico B, Batthyány C, Ferreira AM.
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Society for Developmental Biology 70th Annual Meeting
(2011)
Congreso
Participación como autor del trabajo
Uruguay
Tipo de participación: Poster
Nombre de la institución promotora: Society for Developmental Biology
Alcance geográfico: Internacional
Palabras Clave:
Neurulación Defectos en el cierre del tubo neural MARCKS Cultivo de embriones PKC
Areas de conocimiento:
Ciencias Naturales y Exactas / Ciencias Biológicas
/ Biología del Desarrollo
/ Desarrollo del Sistema Nervioso
MARCKS subcellular translocation during neural tube closure in the chick, and its modulation by PKC activity.
Aparicio G, Folle AM, Arruti C, Zolessi FR.
Trabajo presentado por Flavio R. Zolessi.