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4707 results sorted by

The cyclic adenosine 5' monophosphate response element modulator supresses IL-2 production in stimulated T cells by a chromatin-dependent mechanism

The production of IL-2 is tightly controlled by several transcription factors that bind to the IL-2 promoter. The cAMP response element modulator (CREM) is known to form complexes with CREB and bind to the -180 site of the IL-2 promoter in anergic...
Authors: Tenbrock K, Juang YT, Tolnay M and Tsokos GC

Histamine enhances TGF-beta1-mediated suppression of TH2 responses

Susceptibility of T cells to TGF-beta1 produced by regulatory T cells has an important impact on the induction and maintenance of peripheral tolerance and therefore on the development of autoimmunity, cancer, and allergy. Histamine not only mediates...
Authors: Kunzmann S, Mantel PY, Wohlfahrt JG, Akdis CA, Blaser K and Schmidt-Weber CB

NF-kappaB regulates the expression of human complement receptor 2 gene

CR2 is a key regulator of the B cell response to Ag. Here we show that NF-kappaB enhances the expression of the human CR2 gene. Promoter truncation, deletion, and mutagenesis studies indicated a functional role for a consensus NF-kappaB promoter...
Authors: Tolnay M, Vereshchagina LA and Tsokos GC

SARA and Hgs attenuate susceptibility to TGF-beta1-mediated T cell supression

Transforming growth factor-beta1 (TGF-beta1) is a pluripotent cytokine that controls peripheral T cell tolerance mainly in mucosal immunity. It is secreted by regulatory T cells (Tr /Th3) but also by other immununologically active cells. Smad anchor...
Authors: Kunzmann S, Wohlfahrt JG, Itoh S, Asao H, Komada M, Akdis CA, Blaser K and Schmidt-Weber CB

Wnt-5a inhibits the canonical Wnt pathway by promoting GSK-3-independent-catenin degradation

Wnts are secreted signaling molecules that can transduce their signals through several different pathways. Wnt-5a is considered a noncanonical Wnt as it does not signal by stabilizing beta-catenin in many biological systems. We have uncovered a new...
Authors: Topol L, Jiang X, Choi H, Garrett-Beal L, Carolan PJ and Yang Y

IL-10-inducible Bcl-3 negatively regulates LPS-induced TNF-alpha production in macrophages

Interleukin-10 (IL-10) plays an important role in prevention of chronic inflammation in vivo. However, the molecular mechanism by which IL-10 exerts its anti-inflammatory response is poorly understood. Here, we performed a microarray analysis and...
Authors: Kuwata H, Watanabe Y, Miyoshi H, Yamamoto M, Kaisho T, Takeda K and Akira S

Rapid and highly efficient gene transfer into natural killer cells by nucleofection

Natural killer (NK) cells are important mediators of virus- and tumor-specific immune responses. The transfection of genes into NK cells has been proven difficult and so far requires infection with virus-based vectors. Here, the application of a...
Authors: Trompeter HI, Weinhold S, Thiel C, Wernet P and Uhrberg M

Production of PtdIns(5)P by the phosphoinositide 3-phosphatase myotubularin in mammalian cells

MTM1, the gene encoding myotubularin (MTM1), is mutated in the X-linked myotubular myopathy (XLMTM), a severe genetic muscular disorder. MTM1 is a phosphoinositide phosphatase hydrolyzing phosphatidylinositol 3-phosphate (PtdIns(3)P) in yeast and in...
Authors: Tronchere H, Laporte J, Pendaries C, Chaussade C, Liaubet L, Pirola L, Mandel JL and Payrastre B

Nucleoporation of dendritic cells: efficient gene transfer by electroporation into human monocyte-derived dendritic cells

Dendritic cells (DCs) are ideal accessory cells in the developing field of gene therapy. Although viral transfection of DCs has become widespread, non-viral transfection of DCs has shown disappointing results. Recently, a new technique for...
Authors: Lenz P, Bacot SM, Frazier-Jessen MR and Feldman GM

Transforming growth factor-beta-mediated chondrogenesis of human mesenchymal progenitor cells involves N-cadherin and mitogen-activated protein kinase and Wnt signaling cross-talk

The multilineage differentiation potential of adult tissue-derived mesenchymal progenitor cells (MPCs), such as those from bone marrow and trabecular bone, makes them a useful model to investigate mechanisms regulating tissue development and...
Authors: Tuli R, Tuli S, Nandi S, Huang X, Manner PA, Hozack WJ, Danielson KG, Hall DJ and Tuan RS
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