CD40 is a critical stimulatory receptor on antigen-presenting cells of the immune system. CD40-mediated activation of B cells is particularly important for normal humoral immune function. Engagement of CD40 by its ligand, CD154, on the surface of activated T cells initiates a variety of signals in B cells including the activation of MAP kinases and NF-κB. The transcriptional regulator NF-κB is ...


 Purpose: To assess the role of Kruppel-like factor 7 (KLF7) in hemangioma (HA) progression, KLF7 expression and regulation downstream targets HA tissues hemangioma-derived endothelial cells (HemECs) have been evaluated.
 Methods: Quantitative polymerase chain reaction (qPCR) immunoblotting were performed to normal tissues. Endothelial isolated from tissues, Cell Counting Kit-8 assay...

Peroxidation of membrane lipids occurs in many different neurodegenerative conditions including stroke, and Alzheimer's and Parkinson's diseases. Recent findings suggest that lipid peroxidation can promote neuronal death by a mechanism involving production of the toxic aldehyde 4-hydroxy-2,3-nonenal (HNE), which may act by covalently modifying proteins and impairing their function. The transcri...

TCR-mediated activation of T cell hybridomas induces programmed cell death by a Fas-dependent pathway. We now show that costimulation of 2B4 cells, in the absence or presence of transgenic Bcl-2, with anti-CD3 epsilon and forskolin, an activator of cAMP signaling, resulted in antagonism of Fas-dependent activation-induced cell death that was always accompanied by selective downregulation of the...

The NF-kappa B/Rel family of at least five transcription factor polypeptides is thought to function both as a developmental regulator in B cells and as a rapid response system in all cells. To examine this notion in more detail, we determined the protein contents of both the inducible and constitutive NF-kappa B/Rel activities in a pre-B-cell line, 70Z/3, and a mature B-cell line, WEHI 231. NF-...

BACKGROUND Glomerular endothelial cells play a role in the pathogenesis of glomerulonephritis by producing chemotactic factors. We investigated the role of NF-kappa B and AP-1 in tumour necrosis factor alpha (TNF-alpha) induced monocyte chemoattractant protein 1 (MCP-1) production in cultured human glomerular endothelial cells (HGEC). We also examined whether or not these processes could be mod...

Lithium has been documented to regulate apoptosis and apoptotic gene expression via NF-kappa B and mitogen-activated protein (MAP) kinase-dependent mechanisms. Since both NF-kappa B and MAP kinases are also important mediators of inflammatory gene expression, we investigated the effect of lithium on NF-kappa B- and MAP kinase-mediated inflammatory gene expression. Incubation of human intestinal...

The linear ubiquitin chain assembly complex (LUBAC) plays a crucial role in activating the canonical NF-κB pathway, which is important for B-cell development and function. Here, we describe a mouse model (B-HOIP(Δlinear)) in which the linear polyubiquitination activity of LUBAC is specifically ablated in B cells. Canonical NF-κB and ERK activation, mediated by the tumour necrosis factor (TNF) r...

The transcriptional events that control T cell tolerance to peripheral self Ags are still unknown. In this study, we analyzed the regulation of AP-1- and NF-kappa B-mediated transcription during in vivo induction of tolerance to a self Ag expressed exclusively on hepatocytes. Naive CD8(+)Désiré (Des)(+) T cells isolated from the Des TCR-transgenic mice that are specific for the H-2K(b) class I ...

Background: Breast cancer is known as the most widely recognized dangerous tumors; therefore, the most common reason for mortality among all instances of harmful neoplastic illness in females. This is because the lack of specific signs and symptoms at the early stage and at the aggressive nature. Currently, breast cancer treatment such as chemotherapy, surgery and radiotherapy has not been effe...