Molecular basis of active copper resistance mechanisms in Gram-negative bacteriaCell Biology and Toxicology - Tập 29 - Trang 397-405 - 2013
Kinga Bondarczuk, Zofia Piotrowska-Seget
Copper is a metallic element that is crucial for cell metabolism; however, in extended concentrations, it is toxic for all living organisms. The dual nature of copper has forced organisms, including bacteria, to keep a tight hold on cellular copper content. This challenge has led to the evolution of complex mechanisms that on one hand enable them to deliver the essential element and on the other t...... hiện toàn bộ
Biochemical, morphological and flow cytometric evaluation of the effects of hexachlorobenzene on rat liverCell Biology and Toxicology - Tập 6 - Trang 185-203 - 1990
Milena Rizzardini, Lavinia Cantoni, Pia Villa, Paolo Ubezio
This study investigated the ability of HCB (0.1% in the diet for 15 days) to cause early changes in the cellular ploidy of rat liver. Treatment caused marked hepatomegaly, increase of microsomal proteins and cytochrome P-450 content and reduction of hepatocyte microviscosity. Microscopic examination showed that the hepatocytes were enlarged, with hyaline cytoplasm and vacuoles. The size distributi...... hiện toàn bộ
Newin vitro fluorimetric microtitration assays for toxicological screening of drugsCell Biology and Toxicology - Tập 10 - Trang 329-337 - 1994
P. Rat, C. Korwin-Zmijowska, J. -M. Warnet, M. Adolphe
Flow cytometry has been widely used to quantify fluorescent probes in cell culture. However, FCM is not adapted to toxicological screenings due to the cost, the length and the poor reproducibility of this technique. Moreover, several multicenter studies have preferred microtitration methodologies for drug screening. A new fluorimetric technology has been designed that is sensitive and adapted to d...... hiện toàn bộ
Hsp70 expression in monocytes from patients with peripheral arterial disease and healthy controlsCell Biology and Toxicology - Tập 26 - Trang 215-223 - 2009
Jacqueline Madden, Jenifer C. Coward, Cliff P. Shearman, Robert F. Grimble, Philip C. Calder
Heat shock proteins (HSP) are induced during cellular stress. Their role is to chaperone cellular proteins giving protection from denaturation and ultimately preventing cell death. Monocytes are key cells involved in atherosclerosis and are highly responsive to HSP induction. Therefore, we wished to examine monocyte Hsp70 expression and induction in patients with peripheral arterial disease (PAD) ...... hiện toàn bộ
Gestational bisphenol A exposure induces fatty liver development in male offspring mice through the inhibition of HNF1b and upregulation of PPARγCell Biology and Toxicology - - 2021
Zi Long, Junshu Fan, Guangyuan Wu, Xiyu Liu, Hao Wu, Jiangzheng Liu, Chen Yao, Shan Su, Xiaodong Cheng, Zhongrui Xu, Hongfei Su, Meng Cao, Chunping Zhang, Chen Hai, Xin Wang
AbstractBisphenol A (BPA) is an endocrine-disrupting chemical (EDC) associated with non-alcoholic fatty liver disease (NAFLD). The effects of gestational BPA exposure on hepatic lipid accumulation in offspring are not fully understood. Here, we investigate the sex-dependent effects of gestational BPA exposure on hepatic lipid and glucose metabolism in the offspring...... hiện toàn bộ
New aspects of glioblastoma multiforme revealed by similarities between neural and glioblastoma stem cellsCell Biology and Toxicology - Tập 34 - Trang 425-440 - 2018
Yoichiro Kawamura, Jun Takouda, Koji Yoshimoto, Kinichi Nakashima
Neural stem cells (NSCs) undergo self-renewal and generate neurons and glial cells under the influence of specific signals from surrounding environments. Glioblastoma multiforme (GBM) is a highly lethal brain tumor arising from NSCs or glial precursor cells owing to dysregulation of transcriptional and epigenetic networks that control self-renewal and differentiation of NSCs. Highly tumorigenic gl...... hiện toàn bộ
The differential effects of cadmium exposure on the growth and survival of primary and established cells from fish and mammalsCell Biology and Toxicology - Tập 12 - Trang 29-38 - 1996
M. Lyons-Alcántara, J. V. Tarazona, C. Mothersill
The differential cytotoxic effects of cadmium on fish and mammalian epithelial cells in established and primary culture were assessed by looking at the reduction of the colony-forming ability and reduction in the extent of growth. The influence of medium composition on the toxicity of cadmium was also studied using serum-free and serum-containing media. The experiments using immortalized cell line...... hiện toàn bộ