Now showing items 1-20 of 81

    • Ehrenfeld, Pamela; Conejeros, Iván; Pavicic, María F.; Matus, Carola E.; González, Carlos B.; Quest, Andrew F. G.; Bhoola, Kanti D.; Poblete, María T.; Burgos, Rafael A.; Figueroa, Carlos D. (Elsevier, 2011)
      The kinin B1 receptor (B1R) agonist Lys-des[Arg9]-bradykinin (LDBK) increases proliferation of estrogen-sensitive breast cancer cells by a process involving activation of the epidermal growth factor receptor (EGFR) and ...
    • Ávalos, Ana María; Arthur, William T.; Schneider, Pascal; Quest, Andrew F. G.; Burridge, Keith; Leyton Campos, Lisette (AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC, 2004-09-10)
      Thy-1, a cell adhesion molecule abundantly expressed in mammalian neurons, binds to a beta(3)-containing integrin on astrocytes and thereby stimulates the assembly of focal adhesions and stress fibers. Such events lead to ...
    • Lagos Cabre, Raúl; Álvarez, Álvaro; Kong, Milene; Burgos Bravo, Francesca; Cárdenas, Areli; Rojas Mancilla, Edgardo; Pérez Núñez, Ramón Daniel; Herrera Molina, Rodrigo; Rojas, Fabiola; Schneider, Pascal; Herrera-Marschitz Muller, Mario; Quest, Andrew F. G.; van Zundert, Brigitte; Leyton Campos, Lisette (BIOMED Central Ltd., 2017)
      Background: Neuroinflammation involves cytokine release, astrocyte reactivity and migration. Neuronal Thy-1 promotes DITNC1 astrocyte migration by engaging alpha(V)beta(3) Integrin and Syndecan-4. Primary astrocytes express ...
    • Lagos Cabre, Raúl; Álvarez Martínez, Alvaro; Kong Rojas, Milene; Burgos Bravo, Francesca; Cárdenas Oyarzo, Areli; Rojas Mancilla, Edgardo; Pérez Núñez, Ramón Daniel; Herrera Molina, Rodrigo; Rojas, Fabiola; Schneider, Pascal; Herrera Marschitz, Mario; Quest, Andrew F. G.; van Zundert, Brigitte; Leyton Campos, Lisette (BMC, 2017)
      Background: Neuroinflammation involves cytokine release, astrocyte reactivity and migration. Neuronal Thy-1 promotes DITNC1 astrocyte migration by engaging alpha(V)beta(3) Integrin and Syndecan-4. Primary astrocytes express ...
    • González, Sergio; Aguilera, Sergio; Alliende, Cecilia; Urzúa Tobar, Ulises; Quest, Andrew F. G.; Herrera Cisterna, Luisa; Molina, Claudio; Hermoso Ramello, Marcela; Ewert, Patricia; Brito, Mónica; Romo, Rafael; Leyton Martínez, Cecilia; Pérez, Paola; González Burgos, María Julieta (2011-04)
      Objective. Acinar cells in the salivary glands of patients with Sjo¨gren’s syndrome (SS) display severe alterations in anchorage to the basal lamina. Bioinformatics analysis of the BP230 gene sequence has revealed the ...
    • Burgos Bravo, Francesca; Martínez Meza, Samuel; Quest, Andrew F. G.; Wilson Moya, Christian; Leyton Campos, Lisette (Frontiers Media, 2020)
      Inflammation contributes to the genesis and progression of chronic diseases, such as cancer and neurodegeneration. Upregulation of integrins in astrocytes during inflammation induces neurite retraction by binding to the ...
    • Díaz García, Víctor; Guerrero, Simón; Díaz Valdivia, Natalia; Lobos González, Lorena; Kogan Bocian, Marcelo; Pérez Donoso, José; Quest, Andrew F. G. (NLM (Medline), 2018)
      Background: Numerous studies have proposed the use of fluorescent semiconductor nanoparticles or quantum dots (QDs) as novel tools to label cells and tumors. However, QD applications are limited by their toxicity in ...
    • Pérez Donoso, José; Monrás, Juan P.; Bravo, Denisse; Aguirre, Adam; Quest, Andrew F. G.; Osorio Román, Igor; Aroca, Ricardo F.; Chasteen, Thomas G.; Vásquez, Claudio C. (2012)
      Multiple applications of nanotechnology, especially those involving highly fluorescent nanoparticles (NPs) or quantum dots (QDs) have stimulated the research to develop simple, rapid and environmentally friendly protocols ...
    • Parra, Valentina; Moraga, Francisco; Kuzmicic, Jovan; López Crisosto, Camila; Troncoso, Rodrigo; Torrealba, Natalia; Criollo Céspedes, Alfredo; Díaz Elizondo, Jessica; Rothermel, Beverly A.; Quest, Andrew F. G.; Lavandero González, Sergio (Elsevier, 2013)
      Ceramides are important intermediates in the biosynthesis and degradation of sphingolipids that regulatenumerous cellular processes, including cell cycle progression, cell growth, differentiation and death. In ...
    • Bravo Sagua, Roberto; Parra Ortíz, María Valentina; López Crisosto, Camila; Díaz, Paula; Quest, Andrew F. G.; Lavandero González, Sergio (Wiley, 2017-04)
      Calcium (Ca2+) is a key player in the regulation of many cell functions. Just like Ca2+, mitochondria are ubiquitous, versatile, and dynamic players in determining both cell survival and death decisions. Given their ...
    • Tapia Pineda, Julio; Torres Gómez, Vicente; Rodríguez, D. A.; Leyton Campos, Lisette; Quest, Andrew F. G. (NATL ACAD SCIENCES, 2006-10-10)
      Increased expression of casein kinase 2 (CK2) is associated with hyperproliferation and suppression of apoptosis in cancer. Mutations in the tumor suppressor APC (adenomatous polyposis coli) are frequent in colon cancer ...
    • Torres Gómez, Vicente; Tapia Pineda, Julio; Rodríguez, Diego A.; Leyton Campos, Lisette; Párraga, Mario; Lisboa, Pamela; Montoya, Margarita; Quest, Andrew F. G. (COMPANY OF BIOLOGISTS LTD, 2006-05-01)
      Caveolin-1 is suggested to act as a tumor suppressor. We tested the hypothesis that caveolin-1 does so by repression of survivin, an Inhibitor of apoptosis protein that regulates cell-cycle progression as well as apoptosis ...
    • Oyarce, César; Cruz Gómez, Sebastián; Gálvez Cancino, Felipe Ignacio; Vargas, Pablo; Moreau, Hélène D.; Díaz Valdivia, Natalia; Díaz, Jorge; Salazar Onfray, Flavio; Pacheco, Rodrigo; Lennon Duménil, Ana María; Quest, Andrew F. G.; Lladser, Álvaro (Frontiers Media, 2017)
      Dendritic cell (DC) trafficking from peripheral tissues to lymph nodes (LNs) is a key step required to initiate T cell responses against pathogens as well as tumors. In this context, cellular membrane protrusions and the ...
    • Simón, L.; Campos González, América; Leyton Campos, Lisette; Quest, Andrew F. G. (Springer, 2020)
      Caveolin-1 (CAV1) is commonly considered to function as a cell surface protein, for instance in the genesis of caveolae. Nonetheless, it is also present in many intracellular organelles and compartments. The contributions ...
    • Lobos González, Lorena; Aguilar Guzmán, Lorena Andrea; Fernández Ruiz, Jaime Gonzalo; Muñoz, Nicolás; Hossain, Mehnaz; Bieneck, Simone; Silva, Verónica; Burzioc, Verónica; Sviderskayae, Elena V.; Bennett, Dorothy C.; Leyton Campos, Lisette; Quest, Andrew F. G. (Lippincott Williams & Wilkins, 2014)
      Melanomas are highly lethal skin tumours that are frequently treated by surgical resection. However, the efficacy of such procedures is often limited by tumour recurrence and metastasis. Caveolin-1 (CAV1) has been ...
    • Díaz, María I.; Díaz, Paula; Castillo Bennett, Jimena; Urra, Hery; Ortiz, Rina; Contreras Orellana, Pamela; Hetz Flores, Claudio; Quest, Andrew F. G. (Springer Nature, 2020)
      Caveolin-1 (CAV1), is a broadly expressed, membrane-associated scaffolding protein that acts both, as a tumor suppressor and a promoter of metastasis, depending on the type of cancer and stage. CAV1 is downregulated in ...
    • Urra, Hery; Torres Gómez, Vicente; Ortiz, Rina J.; Lobos, Lorena; Díaz, María I.; Díaz, Natalia; Härtel, Steffen; Leyton Campos, Lisette; Quest, Andrew F. G. (PUBLIC LIBRARY SCIENCE, 2012-04-10)
      Caveolin-1 is known to promote cell migration, and increased caveolin-1 expression is associated with tumor progression and metastasis. In fibroblasts, caveolin-1 polarization and phosphorylation of tyrosine-14 are essential ...
    • Rodríguez, Diego A.; Tapia, Julio; Fernández, Jaime G.; Torres Gómez, Vicente; Muñoz, Nicolás; Galleguillos, Daniela; Leyton Campos, Lisette; Quest, Andrew F. G. (2009)
      Augmented expression of cyclooxygenase-2 (COX-2) and enhanced production of prostaglandin E2 (PGE2) are associated with increased tumor cell survival and malignancy. Caveolin-1 is a scaffold protein that has been proposed ...
    • Sanhueza, Carlos; Castillo Bennett, Jimena; Valenzuela Valderrama, Manuel; Contreras, Pamela; Lobos González, Lorena; Campos, América; Wehinger, Sergio; Lladser, Álvaro; Kiessling, Rolf; Leyton Campos, Lisette; Quest, Andrew F. G. (MDPI, 2020)
      Caveolin-1 (CAV1) is a well-established nitric oxide synthase inhibitor, whose function as a tumor suppressor is favored by, but not entirely dependent on, the presence of E-cadherin. Tumors are frequently hypoxic and the ...
    • Villena, Joan; Henríquez Luna, Mauricio; Torres Gómez, Vicente; Moraga, Francisco; Díaz Elizondo, Jessica; Arredondo, Cristian; Chiong Lay, Mario; Olea Azar, Claudio; Stutzin Schottlander, Andrés; Lavandero González, Sergio; Quest, Andrew F. G. (ELSEVIER SCIENCE INC, 2008-03-15)
      In lymphocytes, Fas activation leads to both apoptosis and necrosis, whereby the latter form of cell death is linked to delayed production of endogenous ceramide and is mimicked by exogenous administration of long- and ...