Search results for "38"

The role of oxidative stress in apoptosis induced by the histone deacetylase inhibitor suberoylanilide hydroxamic acid in human colon adenocarcinoma …

2008

Histone deacetylase inhibitors (HDACIs) activate genes that promote cell cycle arrest and apoptosis in a number of tumor cells. This study showed that suberoylanilide hydroxamic acid (SAHA), a potent and commonly used HDACI, induced apoptosis in human colon adenocarcinoma HT-29 cells in a time- and dose-dependent manner. This effect was accompanied by the induction of oxidative stress, dissipation of mitochondrial transmembrane potential and activation of executioner caspases. Moreover, SAHA increased the levels of phosphorylated active forms of p38 and JNK. The addition of either the antioxidant N-acetylcysteine or the specific inhibitor of NADPH oxidase diphenylene iodonium chloride reduc…

Pharmacological targeting of the novel β-catenin chromatin-associated kinase p38α in colorectal cancer stem cell tumorspheres and organoids

2021

AbstractThe prognosis of locally advanced colorectal cancer (CRC) is currently unsatisfactory. This is mainly due to drug resistance, recurrence, and subsequent metastatic dissemination, which are sustained by the cancer stem cell (CSC) population. The main driver of the CSC gene expression program is Wnt signaling, and previous reports indicate that Wnt3a can activate p38 MAPK. Besides, p38 was shown to feed into the canonical Wnt/β-catenin pathway. Here we show that patient-derived locally advanced CRC stem cells (CRC-SCs) are characterized by increased expression of p38α and are “addicted” to its kinase activity. Of note, we found that stage III CRC patients with high p38α levels display…

Genome-wide association scan of attention deficit hyperactivity disorder

2008

Contains fulltext : 70191.pdf (Publisher’s version ) (Closed access) Results of behavioral genetic and molecular genetic studies have converged to suggest that genes substantially contribute to the development of attention deficit/hyperactivity disorder (ADHD), a common disorder with an onset in childhood. Yet, despite numerous linkage and candidate gene studies, strongly consistent and replicable association has eluded detection. To search for ADHD susceptibility genes, we genotyped approximately 600,000 SNPs in 958 ADHD affected family trios. After cleaning the data, we analyzed 438,784 SNPs in 2,803 individuals comprising 909 complete trios using ADHD diagnosis as phenotype. We present t…

Genome-wide diversity of Pagliarola sheep residual population and its conservation implication

2021

Local breeds represent an underestimated resource in terms not only of their important cultural and economical role in marginal areas, but also because they often own a potential genetic pool well adapted to extreme conditions. This fact is of increasing interest, especially when considering climate global challenges where peculiar and uncommon traits could be advantageous. In this study, we genotyped 24 individuals belonging to the small residual Pagliarola sheep population using the OvineSNP50K array, in order to compare its genomic architecture with other 21 Italian local breeds. Moreover, we performed the fixation index (FST) outlier analysis to identify genes most differentiated betwee…

Apoptosis induced in HepG2 cells by the synthetic cannabinoid WIN: involvement of the transcription factor PPARgamma.

2008

It has recently been shown that cannabinoids induce growth inhibition and apoptosis in different tumour cell lines. In the current study, the effects of WIN 55,212-2 (WIN), a synthetic and potent cannabinoid receptor agonist, are investigated in hepatoma HepG2 cells and a possible signal transduction pathway is proposed. In these cells, WIN induces a clear apoptotic effect which was accompanied by up-regulation of the death-signalling factors Bax, Bcl-X(S), t-Bid and down-regulation of the survival factors survivin, phospho-AKT, Hsp72 and Bcl-2. Moreover, WIN-induced apoptosis is associated with JNK/p38 MAPK pathway activation and mitochondrial depolarisation demonstrated by a cytofluorimet…

Relacion de las festivas aclamaciones, con que celebró ... Valencia la noticia de los ... Desposorios de ... Don Carlos Sebastian de Borbon y Farnese…

Sign. A-E4 Precedeix al tít.: Creu grega Capital grav Sign. A-E4. - Sense port. - Reclams

Transcriptional and post-transcriptional regulation of iNOS expression in human chondrocytes

2009

Chondrocytes are important for the development and maintenance of articular cartilage. However, both in osteoarthritis (OA) and rheumatoid arthritis (RA) chondrocytes are involved in the process of cartilage degradation and synthesize important immunomodulatory mediators, including nitric oxide (NO) generated by the inducible NO synthase (iNOS). To uncover the role of iNOS in the pathomechanisms of OA and RA, we analyzed the regulation of iNOS expression using immortalized human chondrocytes as a reproducible model. In C-28/I2 chondrocytes, iNOS expression was associated with the expression of the chondrocyte phenotype. Peak induction by a cytokine cocktail occurred between 6 and 8h and dec…

Cigarette Smoke Extract Induces p38 MAPK-Initiated, Fas-Mediated Eryptosis

2022

Eryptosis is a physiological mechanism for the clearance of senescent or damaged erythrocytes by phagocytes. Excessive eryptosis is stimulated under several pathologies and associated with endothelial injury and thrombosis. Cigarette smoke (CS) is an established risk factor for vascular diseases and cigarette smokers have high-levels of eryptotic erythrocytes. This study, for the first time, investigates the mechanism by which CS damages red blood cells (RBCs). CS extract (CSE) from commercial cigarettes was prepared and standardized for nicotine content. Cytofluorimetric analysis demonstrated that treatment of human RBCs with CSE caused dose-dependent, phosphatidylserine externalization an…

Particularismes i populismes als països de llengua catalana

2020

[cat] L'article analitza breument l'ampla varietat de conceptes de populisme en la política actual. Aquesta anàlisi intenta mostrar com el populisme ha donat suport als particularismes lingüístics a València i a Mallorca. Aquests particularismes (anomenats blaverisme a València, i gonellisme a Mallorca) no reconeixen la unitat de la comunitat lingüística catalana, i per tant amenacen la recuperació social (normalització) de la llengua catalana.

Vita Sanctae Catharinae Senensis / [per Nicolaum Burgensium

1501

Orla tip. grav. que envolta el tít. i la menció de responsabilitat en p. [6 Caplletra grav. en p. [8 Sign.: a6, b-n4, o6