Search results for "mito"
showing 10 items of 2513 documents
Is ER stress induced in human hepatoma cells treated with the antiretroviral drug Efavirenz mitochondria-related?
2012
Hydrodynamic chromatography for characterization and purification of liposomes
1989
A p300 and SIRT1 Regulated Acetylation Switch of C/EBPP Controls Mitochondrial Function
2018
Cellular metabolism is a tightly controlled process in which the cell adapts fluxes through metabolic pathways in response to changes in nutrient supply. Among the transcription factors that regulate gene expression and thereby cause changes in cellular metabolism is the basic leucine-zipper (bZIP) transcription factor CCAAT/enhancer-binding protein alpha (C/EBPα). Protein lysine acetylation is a key post-translational modification (PTM) that integrates cellular metabolic cues with other physiological processes. Here we show that C/EBPα is acetylated by the lysine acetyl transferase (KAT) p300 and deacetylated by the lysine deacetylase (KDAC) Sirtuin1 (SIRT1). SIRT1 is activated in times of…
ChemInform Abstract: Synthesis of Pyrido[2,1-a]isoquinolin-4-ones and Oxazino[2,3-a]isoquinolin-4-ones: New Inhibitors of Mitochondrial Respiratory C…
2014
Benzo[a]quinolizine is an important heterocyclic framework that can be found in numerous bioactive compounds. The general scheme for the synthesis of these compounds was based on the preparation of the appropriate dihydroisoquinolines by Bischler-Napieralski cyclization with good yields, followed by the Pemberton method to form the oxazinones or pyridones derivatives via acyl-ketene imine cyclocondensation. All the synthesized compounds were assayed in vitro for their ability to inhibit mitochondrial respiratory chain. Most of the tested compounds were able to inhibit the integrated electron transfer chain, measured as NADH oxidation, which includes complexes I, III and IV, in the low micro…
Activation of Mitochondria-Driven Pathways by Artemisinin and Its Derivatives
2014
Mitochondria have recently emerged as promising agents for cancer therapy. Of particular interest and potential clinical relevance are agents that target these organelles, promoting cell death. There are literally thousands of compounds that act on mitochondria and destabilise them. Of these, naturally occurring compounds are particularly interesting, since they are often more ‘biocompatible’; besides, natural compounds can be lead drugs for the design of novel and more efficient anti-cancer agents. In this paper, we focus on the natural product artemisin and its semisynthetic derivatives, and document the molecular mechanism of their activity and their potential use as clinically relevant …
Codependencia y literatura : la codependencia en la antigüedad clásica
2000
Este artículo se escribe con la finalidad de profundizar sobre el origen del fenómeno adictivo de la codependencia. Para ello, se analiza la narrativa literaria mitológica de Eco, narrativa concebida como la metáfora por excelencia de la condición codependiente. El análisis literario hará emerger ciertas características familiares que se sitúan teóricamente en el origen del proceso adictivo codependiente, corroborando así hipótesis de trabajo.
Integrin α2β1 Mediates Isoform-Specific Activation of p38 and Upregulation of Collagen Gene Transcription by a Mechanism Involving the α2 Cytoplasmic…
1999
Two collagen receptors, integrins alpha1beta1 and alpha2beta1, can regulate distinct functions in cells. Ligation of alpha1beta1, unlike alpha2beta1, has been shown to result in recruitment of Shc and activation of the Ras/ERK pathway. To identify the downstream signaling molecules activated by alpha2beta1 integrin, we have overexpressed wild-type alpha2, or chimeric alpha2 subunit with alpha1 integrin cytoplasmic domain in human osteosarcoma cells (Saos-2) lacking endogenous alpha2beta1. The chimeric alpha2/alpha1 chain formed a functional heterodimer with beta1. In contrast to alpha2/alpha1 chimera, forced expression of alpha2 integrin resulted in upregulation of alpha1 (I) collagen gene …
El mito de la princesa: Blancanieves y la Bella Durmiente según Elfriede Jelinek
2011
Reescribir y reinterpretar cuentos tradicionales forma parte ya de una tradición literaria a la que no pocos autores se han sumado. El presente artículo ofrecerá un análisis de uno de estos intentos, llevado a cabo por la escritora austriaca Elfriede Jelinek. La autora ganadora del Premio Nobel de Literatura en 2004 publicó un año antes Dramas de princesas. La muerte y la doncella I-V, un conjunto de cinco obras concebidas como entreactos de otros espectáculos teatrales. De entre los modelos que la autora toma como referencia, los cuentos de hadas suponen el punto de partida para dos de los dramas, La muerte y la doncella I (Blancanieves) y La Muerte y la doncella II (La Bella Durmiente). E…
Modelo celular a partir de iPSC de la enfermedad Charcot-Marie-Tooth causada por la ausencia de GDAP1
2021
La enfermedad de Charcot-Marie-Tooth es una polineuropatía hereditaria motora y sensorial de carácter crónico. Su origen multifactorial y poligénico, su complejo fenotipo clínico y la variedad en sus patrones de herencia genética hacen de ella una dolencia de difícil estudio. Por este motivo es necesario un abordaje multidisciplinar para comprender y desvelar las causas subyacentes a la patología. En esta tesis doctoral, se desarrolla un modelo celular in vitro generado a partir de iPSC murinas para comprender mejor el fenotipo celular y molecular de la dolencia causada por ausencia de GDAP1 en humanos. Mutaciones en Gdap1, el gen que codifica para una proteína localizada en la membrana mit…