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| 1 | Relevance of proteolysis and proteasome activation in fatty liver graft preservation: An Institut Georges Lopez-1 vs University of Wisconsin appraisal显示文摘AIM To compare liver proteolysis and proteasome activation in steatotic liver grafts conserved in University of Wisconsin(UW) and Institut Georges Lopez-1(IGL-1)solutions.METHODS Fatty liver grafts from male obese Zücker rats were conserved in UW and IGL-1 solutions for 24 h at 4 ℃and subjected to 'ex vivo ' normo-thermic perfusion(2 h; 37 ℃). Liver proteolysis in tissue specimens and perfusate was measured by reverse-phase high performance liquid chromatography. Total free amino acid release was correlated with the activation of the ubiquitin proteasome system(UPS: measured as chymotryptic-like activity and 20 S and 19 S proteasome), the prevention of liver injury(transaminases), mitochondrial injury(confocal microscopy) and inflammation markers(TNF 1 alpha, high mobility group box-1(HGMB-1) and PPAR gamma), and liver apoptosis(TUNEL assay, cytochrome c and caspase 3).RESULTS Profiles of free AA(alanine, proline, leucine, isoleucine, methionine, lysine, ornithine, and threonine, among others) were similar for tissue and reperfusion effluent. In all cases, the IGL-1 solution showed a significantly higher prevention of proteolysis than UW(P < 0.05) after cold ischemia reperfusion. Livers conserved in IGL-1 presented more effective prevention of ATP-breakdown and more inhibition of UPS activity(measured as chymotryptic-like activity). In addition, the prevention of liver proteolysis and UPS activation correlated with the prevention of liver injury(AST/ALT) and mitochondrial damage(revealed by confocal microscopy findings) as well as with the prevention of inflammatory markers(TNF1alpha and HMGB) after reperfusion. In addition, the liver grafts preserved in IGL-1 showed a significant decrease in liver apoptosis, as shown by TUNEL assay and the reduction of cytochrome c, caspase 3 and P62 levels. CONCLUSION Our comparison of these two preservation solutions suggests that IGL-1 helps to prevent ATP breakdown more effectively than UW and subsequently achieves a higher UPS inhibition and reduced liver proteolysis. | Mohamed Amine Zaouali Arnau Panisello-Roselló Alexandre Lopez Carlos Castro Benítez Emma Folch-Puy Agustín García-Gil Teresa Carbonell RenéAdam Joan Roselló-Catafau | 2017 | World Journal of Gastroenterology2017，23，23： | 3 |
| 2 | Polyethylene glycols: An effective strategy for limiting liver ischemia reperfusion injury显示文摘Liver ischemia-reperfusion injury(IRI) is an inherent feature of liver surgery and liver transplantation in which damage to a hypoxic organ(ischemia) is exacerbated following the return of oxygen delivery(reperfusion). IRI is a major cause of primary nonfunction after transplantation and may lead to graft rejection, regardless of immunological considerations. The immediate response involves the disruption of cellular mitochondrial oxidative phosphorylation and the accumulation of metabolic intermediates during the ischemic period, and oxidative stress during blood flow restoration. Moreover, a complex cascade of inflammatory mediators is generated during reperfusion, contributing to the extension of the damage and finally to organ failure. A variety of pharmacological interventions(antioxidants, anticytokines, etc.) have been proposed to alleviate graft injury but their usefulness is limited by the local and specific action of the drugs and by their potential undesirable toxic effects. Polyethylene glycols(PEGs), which are non-toxic water-soluble compounds approved by the FDA, have been widely used as a vehicle or a base in food, cosmetics and pharmaceuticals, and also as adjuvants for ameliorating drug pharmacokinetics. Some PEGs are also currently used as additives in organ preservation solutions prior to transplantation in order to limit the damage associated with cold ischemia reperfusion. More recently, the administration of PEGs of different molecular weights by intravenous injection has emerged as a new therapeutic tool to protect liver grafts from IRI. In this review, we summarize the current knowledge concerning the use of PEGs as a useful target for limiting liver IRI. | Gianfranco Pasut Arnau Panisello Emma Folch-Puy Alexandre Lopez Carlos Castro-Benítez Maria Calvo Teresa Carbonell Agustín García-Gil RenéAdam Joan Roselló-Catafau | 2016 | World Journal of Gastroenterology2016，22，28： | 3 |
| 3 | Dendritic cell deficiencies persist seven months after SARS-CoV-2 infection显示文摘Severe Acute Respiratory Syndrome Coronavirus(SARS-CoV)-2 infection induces an exacerbated inflammation driven by innate immunity components.Dendritic cells(DCs)play a key role in the defense against viral infections,for instance plasmacytoid DCs(pDCs),have the capacity to produce vast amounts of interferon-alpha(IFN-α).In COVID-19 there is a deficit in DC numbers and IFN-αproduction,which has been associated with disease severity.In this work,we described that in addition to the DC deficiency,several DC activation and homing markers were altered in acute COVID-19 patients,which were associated with multiple inflammatory markers.Remarkably,previously hospitalized and nonhospitalized patients remained with decreased numbers of CD1c+myeloid DCs and pDCs seven months after SARS-CoV-2 infection.Moreover,the expression of DC markers such as CD86 and CD4 were only restored in previously nonhospitalized patients,while no restoration of integrinβ7 and indoleamine 2,3-dyoxigenase(IDO)levels were observed.These findings contribute to a better understanding of the immunological sequelae of COVID-19. | Alberto Pérez-Gómez Joana Vitallé Carmen Gasca-Capote Alicia Gutierrez-Valencia María Trujillo-Rodriguez Ana Serna-Gallego Esperanza Muñoz-Muela María de los Reyes Jiménez-Leon Mohamed Rafii-El-Idrissi Benhnia Inmaculada Rivas-Jeremias Cesar Sotomayor Cristina Roca-Oporto Nuria Espinosa Carmen Infante-Domínguez Juan Carlos Crespo-Rivas Alberto Fernández-Villar Alexandre Pérez-González Luis Fernando López-Cortés Eva Poveda Ezequiel Ruiz-Mateos JoséMiguel Cisneros Sonsoles Salto-Alejandre Judith Berastegui-Cabrera Pedro Camacho-Martínez Carmen Infante-Domínguez Marta Carretero-Ledesma Juan Carlos Crespo-Rivas Eduardo Márquez JoséManuel Lomas Claudio Bueno Rosario Amaya JoséAntonio Lepe Jerónimo Pachón Elisa Cordero Javier Sánchez-Céspedes Manuela Aguilar-Guisado Almudena Aguilera Clara Aguilera Teresa Aldabo-Pallas Verónica Alfaro-Lara Cristina Amodeo Javier Ampuero María Dolores Avilés Maribel Asensio Bosco Barón-Franco Lydia Barrera-Pulido Rafael Bellido-Alba Máximo Bernabeu-Wittel Candela Caballero-Eraso Macarena Cabrera Enrique Calderón Jesús Carbajal-Guerrero Manuela Cid-Cumplido Yael Corcia-Palomo Juan Delgado Antonio Domínguez-Petit Alejandro Deniz Reginal Dusseck-Brutus Ana Escoresca-Ortega Fátima Espinosa Nuria Espinosa Michelle Espinoza Carmen Ferrándiz-Millón Marta Ferrer Teresa Ferrer Ignacio Gallego-Texeira Rosa Gámez-Mancera Emilio García Horacio García-Delgado Manuel García-Gutiérrez María Luisa Gascón-Castillo Aurora González-Estrada Demetrio González Carmen Gómez-González Rocío González-León Carmen Grande-Cabrerizo Sonia Gutiérrez Carlos Hernández-Quiles Inmaculada Concepción Herrera-Melero Marta Herrero-Romero Luis Jara Carlos Jiménez-Juan Silvia Jiménez-Jorge Mercedes Jiménez-Sánchez Julia Lanseros-Tenllado Carmina López Isabel López Álvaro López-Barrios Luis F.López-Cortés Rafael Luque-Márquez Daniel Macías-García Guillermo Martín-Gutiérrez Luis Martín-Villén JoséMolina Aurora Morillo María Dolores Navarro-Amuedo Dolores Nieto-Martín Francisco Ortega María Paniagua-García Amelia Peña-Rodríguez Esther Pérez Manuel Poyato Julia Praena-Segovia Rafaela Ríos Cristina Roca-Oporto Jesús F.Rodríguez María Jesús Rodríguez-Hernández Santiago Rodríguez-Suárez Ángel Rodríguez-Villodres Nieves Romero-Rodríguez Ricardo Ruiz Zida Ruiz de Azua Celia Salamanca Sonia Sánchez Víctor Manuel Sánchez-Montagut César Sotomayor Alejandro Suárez Benjumea Javier Toral | 2021 | Cellular & Molecular Immunology2021，18，9： | 2 |
| 4 | Dependency of Colorectal Cancer on a TGF-β-Driven Program in Stromal Cells for Metastasis Initiation显示文摘 | Alexandre Calon Elisa Espinet Sergio Palomo-Ponce Daniele V.F. Tauriello Mar Iglesias María Virtudes Céspedes Marta Sevillano Cristina Nadal Peter Jung Xiang H.-F. Zhang Daniel Byrom Antoni Riera David Rossell Ramón Mangues Joan Massagué Elena Sancho Edua | 2012 | Cancer Cell2012，，5： | 2 |
| 5 | The value of simple microbi- ological studies for on-site screening of acute neonatal conjunctivitis in Angola 显示文摘 | Alexandre 1 Cortes N Justel M | 2014 | J Ophthalmic Inflamm Inft2014，4，1： | 1 |
| 6 | Cryopreserved human hepatocytes in suspension are a convenient high throughput tool for the prediction of metabolic clearance显示文摘 | JOUIN D BLANCHARD N ALEXANDRE E | 2006 | Eur J Pharm Biopharm2006，63，3： | 1 |
| 7 | Environment,tourism and land use planning-Riachinho Basin,Brazil显示文摘 | Maria G P Leila N M V Alexandre U | 2001 | Environmental Management and Health2001，12，1： | 1 |
| 8 | Spawning of turbot(Scophthalmus maximus) in captivity显示文摘 | Devauchelle N Alexandre J C Corre L E N | 1988 | Aquaculture1988，69，： | 1 |
| 9 | A review on the young history of the wind power short-term prediction显示文摘 | Alexandre C Antonio C Jorge N | 2008 | Renewable and Sustainable Energy Reviews2008，12，6： | 1 |
| 10 | Emergence of carbapenem resistance in Acinetobacter baumannii in the Czech Republic is associated with the spread of multidrug resistant strains of European clone Ⅱ 显示文摘 | Alexandr N Lenka K Martina M | 2008 | d Antimicrob Chemother2008，62，3： | 1 |
| 11 | Isolation, characterization and chemical synthesis of a new insect defensin from Chironomus plumosus (Diptera) 显示文摘 | Alexandr N Jean Paul B | 1998 | Insect Biochem Mol Biol1998，28，12： | 1 |
| 12 | Is nocturnal desaturation a trigger for neuronal damage in chronic obstructive pulmonary disease?显示文摘 | Alexandre F Heraud N Varray A | 2015 | Med Hypotheses2015，84，1： | 1 |
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| 14 | Incorporation of Sludge Waste from Water Treatment Plant into Red Ceramic 显示文摘 | Monteiro S N Alexandre J Margem J I | 2008 | Construction and Building Materials2008，22，： | 1 |
| 15 | The use of microRNAs as re{erence genes for quantitative polymerase chain reaction in soybean 显示文摘 | Franccli R K Francismar C M Alexandre L N | 2010 | Analytical Biochemistry2010，406，2： | 1 |
| 16 | Artificial neural networks for the presetting of a steel temper mill显示文摘 | Alexandre F | 1996 | IEEE Expert1996，11，1： | 1 |
| 17 | lncorporation of sludge waste from water treatment plant into red ceramic显示文摘 | MONTEIRO S N ALEXANDRE J MANGEM J l | 2008 | Construction and Building Materials2008，，： | 1 |
| 18 | Properties of carbon onions produced by arc discharge in water显示文摘 | Sano N Wang H Alexandrou I | 2002 | Journal of Applied Physics2002，92，5： | 1 |
| 19 | Universal sample preparation method for proteome analysis显示文摘 | Jacek RW Alexandre Z Nagarjuna N | | 0，，： | 1 |
| 20 | 1 - ( 2,4 - dihydroxyphenyl) - 3 - (2,4 - dimethoxy - 3 - methylphenyl) propane, a novel tyrosinase inhibitor with strong depigmenting effects 显示文摘 | ALEXANDRE N ZHAO J F DAVID M | 2008 | Chem Pharm Bull2008，56，9： | 1 |
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