PATRIC HAMBLETON¹, MANUEL ALEJANDRO BARBIERI^1,2,3,4,*

BIOCELL, Vol.44, No.4, pp. 525-534, 2020, DOI:10.32604/biocell.2020.011407 - 24 December 2020

Abstract Cancerous cells display abnormalities in the signal transduction pathways responsible for responding to extracellular growth factors, or mitogens. Mutations that alter proteins involved in these types of pathways can lead to inappropriate or unregulated cell growth, and therefore predispose the cell to become malignant. The critical role of the Ras/mitogen-activated protein kinase (MAPK) pathway in transducing growth signals to the interior of the cell and subsequently stimulating cell growth and proliferation is underscored by the fact that roughly one quarter of all human tumors contain mutant forms of Ras proteins. A particular focus on the… More >

Jia Liu^*, Ying Zhang^†, Shulan Sun^‡, Guirong Zhang^‡, Ke Jiang,§ Peixin Sun^*, Ye Zhang^*, Bing Yao^*, Rui Sui^*, Yi Chen^*, Xu Guo^*, Tao Tang^*, Ji Shi^*, Haiyang Liang^*, Haozhe Piao^*

Oncology Research, Vol.27, No.4, pp. 475-486, 2019, DOI:10.3727/096504018X15270916676926

Abstract Glioma is the most common malignant tumor of the central nervous system, and it is characterized by high relapse and fatality rates and poor prognosis. Bufalin is one of the main ingredients of Chan-su, a traditional Chinese medicine (TCM) extracted from toad venom. Previous studies revealed that bufalin exerted inhibitory effects on a variety of tumor cells. To demonstrate the inhibitory effect of bufalin on glioma cells and glioma stem-like cells (GSCs) and discuss the underlying mechanism, the proliferation of glioma cells was detected by MTT and colony formation assays following treatment with bufalin. In… More >

MIROSLAV VAŘECHA^1*, DANIELA PÁCLOVÁ², JIŘINA PROCHÁZKOVÁ², PAVEL MATULA¹, DUŠAN CMARKO³, AND MICHAL KOZUBEK¹

BIOCELL, Vol.36, No.3, pp. 121-126, 2012, DOI:10.32604/biocell.2012.36.121

Abstract Recent findings suggest that apoptotic protein apoptosis-inducing factor (AIF) may also play an important non-apoptotic function inside mitochondria. AIF was proposed to be an important component of respiratory chain complex I that is the major producer of superoxide radical. The possible role of AIF is still controversial. Superoxide production could be used as a valuable measure of complex I function, because the majority of superoxide is produced there. Therefore, we employed superoxide-specific mitochondrial fluorescence dye for detection of superoxide production. We studied an impact of AIF knockdown on function of mitochondrial complex I by analyzing… More >