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Viral life cycle as that of the hepatitis C virus (HCV) completely relies on host cell infrastructure, presupposing that the virus has evolved mechanisms to utilize and control all cellular molecules or pathways required for viral life cycle. Hence, HCV must have acquired the ability to gain...
The different activities of the tumor suppressor p53 are tightly regulated by various negative and positive feedback loops, which allow accurate control of its function. Here we show that the p53-inducible ubiquitin E3 ligase Siah-1L can bind to the p53 phosphorylating kinase HIPK2 and thus...
The chemokine decoy receptor D6 is a promiscuous chemokine receptor lacking classical signaling functions. It negatively regulates inflammation by targeting CC chemokines to cellular internalization and degradation. Here we analyze the function of D6 in acute CCl 4 -induced liver damage in...
We identified a molten globule-like intermediate of 2,5-diketo- d -gluconate reductase A (DKGR) at pH 2.5, which has a prominent β-sheet structure. The molten globule state of the protein shows amyloidogenic property >50 μ m protein concentration. Interestingly, a 1:1 molar ratio of curcumin...
In regenerative medicine pluripotent stem cells are considered to be a valuable self-renewing source for therapeutic cell transplantations, given that a functional organ-specific phenotype can be acquired by in vitro differentiation protocols. Furthermore, derivatives of pluripotent stem cells...
RhoA and RhoC are highly related Rho GTPases, but differentially control cellular behaviour. We combined molecular, cellular, and biochemical experiments to characterise differences between these highly similar GTPases. Our findings demonstrate that enhanced expression of RhoC results in a...
The liver plays a central role in the transformation and degradation of endogenous and exogenous chemicals, and in the removal of unwanted cells such as damaged, genetically mutated and virus-infected cells. Because of this function, the liver is susceptible to toxicity caused by the products...
Similar to growing and metabolically active tissues, tumors require a dense vasculature to gain access to oxygen and nutrients. However, blood vessels in tumors differ from vessels in normal tissues in many respects. In particular, the tumor vasculature is in an active state of angiogenesis or...
Stellate cells are vitamin A-storing cells of liver and pancreas and have been described in all vertebrates ranging from lampreys (primitive fish) to humans, demonstrating their major importance. This cell type is thought to contribute to fibrosis, a condition characterized by an excess...
Upon DNA damage and other stresses, the transcription factor p53 elicits numerous responses including DNA repair, cell cycle arrest and apoptosis, properties that make p53 the prototype tumor suppressor. In addition, p53 also transactivates genes whose products act in an anti-apoptotic manner...
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