Immuno-Spin Trapping of Heme-Induced Protein Radicals; Implications for Heme Oxygenase-1 Induction and Heme Degradation
نویسندگان
چکیده
منابع مشابه
How Heme Oxygenase-1 Prevents Heme-Induced Cell Death
Earlier observations indicate that free heme is selectively toxic to cells lacking heme oxygenase-1 (HO-1) but how this enzyme prevents heme toxicity remains unexplained. Here, using A549 (human lung cancer) and immortalized human bronchial epithelial cells incubated with exogenous heme, we find knock-down of HO-1 using siRNA does promote the accumulation of cell-associated heme and heme-induce...
متن کاملPharmacologic induction of heme oxygenase-1.
Heme oxygenase-1 (HO-1) is a cytoprotective protein whose expression is consistently associated with therapeutic benefits in a number of pathologic conditions such as atherosclerotic vascular disease and inflammation. Although the expression of HO-1 in most tissues is low, a large number of clinical and experimental pharmacologic compounds have been demonstrated to induce HO-1. This induction i...
متن کاملInduction of Heme Oxygenase -1 By Lipocalin 2 Mediated By Nf-Kb Transcription Factor
Purpose: Effect of lipocalin 2 on the expression of heme oxygenase I , II and NF-kB transcription factor was the purpose of this survey. Materials and Methods: Lcn2 was cloned to pcDNA3.1 plasmid by using genetic engineering method. The recombinant vector was transfected to CHO and HEK293T to establish stable cell expressing lipocalin 2. The presence of lipocalin 2 gene in these cells was confi...
متن کاملInduction of heme oxygenase 1 attenuates placental ischemia-induced hypertension.
Recent in vitro studies have reported that heme oxygenase 1 (HO-1) downregulates the angiostatic protein soluble fms-like tyrosine kinase 1 from placental villous explants and that the HO-1 metabolites CO and bilirubin negatively regulate endothelin 1 and reactive oxygen species. Although soluble fms-like tyrosine kinase 1, endothelin 1, and reactive oxygen species have been implicated in the p...
متن کاملHeme Proteins, Heme Oxygenase-1 and Oxidative Stress
Heme is ferrous protoporphyrin-IX that is the prosthetic group of hemoproteins, such as hemoglobin, myoglobin and cytochromes that are of vital importance. In contrast, “free heme”, a protein-unbound heme, that is either just synthesized but yet not incorporated into hemoproteins, or that is released from hemoprotein under oxidative conditions, is highly toxic, since it catalyzes the production...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Free Radical Biology and Medicine
سال: 2012
ISSN: 0891-5849
DOI: 10.1016/j.freeradbiomed.2012.10.369