0000000001136090
AUTHOR
Francesc Villarroya
showing 14 related works from this author
MOESM7 of Histone macroH2A1.2 promotes metabolic health and leanness by inhibiting adipogenesis
2016
Additional file 7. Figure S6. Histogram representing the distance and the frequency of macroH2A1.2-binding regions from transcriptional starting site (TSS), genome-wide.
MOESM2 of Histone macroH2A1.2 promotes metabolic health and leanness by inhibiting adipogenesis
2016
Additional file 2. Figure S1. Representative images of wild-type and macroH2A1.2 transgenic (Tg) mice adipose tissue (VAT) sections immunostained for macroH2A1.2 (red). Nuclei were counterstained with Hoechst (blue), while perilipin was immunostained to define adipose cell membranes (green). macroH2A1.2 expression was detected only in the VAT of Tg animals but not in wild-type animals (white arrows).
MOESM3 of Histone macroH2A1.2 promotes metabolic health and leanness by inhibiting adipogenesis
2016
Additional file 3. Figure S2. Increased glucose clearance because of enhanced insulin sensitivity in the muscle, liver and adipose tissue. Mice fed a chow diet were injected with insulin (INS, 0.75 U kg − 1) 15 min before being killed, after which phosphorylation status of AKT (Ser473) was determined by western blot. Representative immunoblots are shown in the skeletal muscle, liver and adipose tissue. Immunoblots were quantified by densitometry and normalized against total protein levels of AKT. *P
MOESM6 of Histone macroH2A1.2 promotes metabolic health and leanness by inhibiting adipogenesis
2016
Additional file 6. Figure S5. Representative images of liver (left panels) and heart (right panels) sections immunostained for macroH2A1.1 or for macroH2A1.2 (green). Both isoforms appear to be highly expressed in hepatocytes, whereas there a strong reduction in expression pattern of macroH2A1.2 is observed in mouse heart tissue. Nuclei were counterstained with DAPI.
MOESM4 of Histone macroH2A1.2 promotes metabolic health and leanness by inhibiting adipogenesis
2016
Additional file 4. Figure S3. MacroH2A1.1 and macroH2A1.2 expression in 3T3-L1 pre-adipocytes and adipocytes. 3T3-L1 pre-adipocytes with lentiviral-mediates stable expression of GFP, macroH2A1.1-GFP and macroH2A1.2-GFP were induced to differentiate into mature adipocytes as in Fig. 6. At the 1st, 5th and 15th day of differentiation, histones were extracted and processed for immunoblotting with anti-macroH2A1.1, macroH2A1.2 and anti-H3-specific antibodies. Representative blots are shown, together with MW ladder.
Efficacy and epigenetic interactions of novel DNA hypomethylating agent guadecitabine (SGI-110) in preclinical models of hepatocellular carcinoma.
2016
ABSTRACT Hepatocellular carcinoma (HCC) is a deadly malignancy characterized at the epigenetic level by global DNA hypomethylation and focal hypermethylation on the promoter of tumor suppressor genes. In most cases it develops on a background of liver steatohepatitis, fibrosis, and cirrhosis. Guadecitabine (SGI-110) is a second-generation hypomethylating agent, which inhibits DNA methyltransferases. Guadecitabine is formulated as a dinucleotide of decitabine and deoxyguanosine that is resistant to cytidine deaminase (CDA) degradation and results in prolonged in vivo exposure to decitabine following small volume subcutaneous administration of guadecitabine. Here we found that guadecitabine i…
GDF11 induces mild hepatic fibrosis independent of metabolic health
2020
BACKGROUND & AIMS: Growth Differentiation Factor 11 (GDF11) is an anti-aging factor, yet its role in liver diseases is not established. We evaluated the role of GDF11 in healthy conditions and in the transition from non-alcoholic fatty liver disease (NAFLD) to non-alcoholic steatohepatitis (NASH). RESULTS: GDF11 mRNA levels positively correlated with NAFLD activity score and with CPT1, SREBP, PPAR? and Col1A1 mRNA levels, and associated to portal fibrosis, in morbidly obese patients with NAFLD/NASH. GDF11-treated mice showed mildly exacerbated hepatic collagen deposition, accompanied by weight loss and without changes in liver steatosis or inflammation. GDF11 triggered ALK5-dependent SMAD2/…
Genetic ablation of macrohistone H2A1 leads to increased leanness, glucose tolerance and energy expenditure in mice fed a high-fat diet.
2015
Contains fulltext : 155347.pdf (Publisher’s version ) (Closed access) BACKGROUND/OBJECTIVES: In the context of obesity, epigenetic mechanisms regulate cell-specific chromatin plasticity, perpetuating gene expression responses to nutrient excess. MacroH2A1, a variant of histone H2A, emerged as a key chromatin regulator sensing small nutrients during cell proliferation and differentiation. Mice genetically ablated for macroH2A1 (knockout (KO)) do not show overt phenotypes under a standard diet. Our objective was to analyse the in vivo role of macroH2A1 in response to nutritional excess. METHODS: Twelve-week-old whole-body macroH2A1 KO male mice were given a high-fat diet (60% energy from lard…
MOESM1 of Histone macroH2A1.2 promotes metabolic health and leanness by inhibiting adipogenesis
2016
Additional file 1.
Guidelines for the use and interpretation of assays for monitoring autophagy (4th edition) 1
2021
Contains fulltext : 232759.pdf (Publisher’s version ) (Closed access) In 2008, we published the first set of guidelines for standardizing research in autophagy. Since then, this topic has received increasing attention, and many scientists have entered the field. Our knowledge base and relevant new technologies have also been expanding. Thus, it is important to formulate on a regular basis updated guidelines for monitoring autophagy in different organisms. Despite numerous reviews, there continues to be confusion regarding acceptable methods to evaluate autophagy, especially in multicellular eukaryotes. Here, we present a set of guidelines for investigators to select and interpret methods to…
MOESM5 of Histone macroH2A1.2 promotes metabolic health and leanness by inhibiting adipogenesis
2016
Additional file 5. Figure S4. Gene expression in 3T3-L1 adipocytes. 3T3-L1 pre-adipocytes with lentiviral-mediates stable expression of GFP, macroH2A1.1-GFP and macroH2A1.2-GFP were induced to differentiate into mature adipocytes as in Fig. 6. At the 15th day of differentiation, RNA was extracted and processed for qPCR analyses with specific primers. Results were normalized to pre-differentiation gene levels. Values are represented as means (N = 3) ± S.E.M. *P
Histone macroH2A1.2 promotes metabolic health and leanness by inhibiting adipogenesis
2016
Background Obesity has tremendous impact on the health systems. Its epigenetic bases are unclear. MacroH2A1 is a variant of histone H2A, present in two alternatively exon-spliced isoforms macroH2A1.1 and macroH2A1.2, regulating cell plasticity and proliferation, during pluripotency and tumorigenesis. Their role in adipose tissue plasticity is unknown. Results Here, we show evidence that macroH2A1.1 protein levels in the visceral adipose tissue of obese humans positively correlate with BMI, while macroH2A1.2 is nearly absent. We thus introduced a constitutive GFP-tagged transgene for macroH2A1.2 in mice, and we characterized their metabolic health upon being fed a standard chow diet or a hig…
Autophagy
2021
In 2008, we published the first set of guidelines for standardizing research in autophagy. Since then, this topic has received increasing attention, and many scientists have entered the field. Our knowledge base and relevant new technologies have also been expanding. Thus, it is important to formulate on a regular basis updated guidelines for monitoring autophagy in different organisms. Despite numerous reviews, there continues to be confusion regarding acceptable methods to evaluate autophagy, especially in multicellular eukaryotes. Here, we present a set of guidelines for investigators to select and interpret methods to examine autophagy and related processes, and for reviewers to provide…
Efficacy and epigenetic interactions of novel DNA hypomethylating agent guadecitabine (SGI-110) in preclinical models of hepatocellular carcinoma
2016
Hepatocellular carcinoma (HCC) is a deadly malignancy characterized at the epigenetic level by global DNA hypomethylation and focal hypermethylation on the promoter of tumor suppressor genes. In most cases it develops on a background of liver steatohepatitis, fibrosis, and cirrhosis. Guadecitabine (SGI-110) is a second-generation hypomethylating agent, which inhibits DNA methyltransferases. Guadecitabine is formulated as a dinucleotide of decitabine and deoxyguanosine that is resistant to cytidine deaminase (CDA) degradation and results in prolonged in vivo exposure to decitabine following small volume subcutaneous administration of guadecitabine. Here we found that guadecitabine is an effe…