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4720 results sorted by

T1alpha/podoplanin deficiency disrupts normal lymphatic vasculature formation and causes lymphedema

Within the vascular system, the mucin-type transmembrane glycoprotein T1alpha/podoplanin is predominantly expressed by lymphatic endothelium, and recent studies have shown that it is regulated by the lymphatic-specific homeobox gene Prox1. In this...
Authors: Schacht V, Ramirez MI, Hong YK, Hirakawa S, Feng D, Harvey N, Williams M, Dvorak AM, Dvorak HF,...

Regulation and targeting of antiapoptotic XIAP in acute myeloid leukemia

XIAP is a member of the inhibitors-of-apoptosis family of proteins, which inhibit caspases and block cell death, with prognostic importance in AML. Here we demonstrate that cytokines regulate the expression of XIAP in leukemic cell lines and primary...
Authors: Carter BZ, Milella M, Tsao T, McQueen T, Schober WD, Hu W, Dean NM, Steelman L, McCubrey JA and...

The phosphatidylinositol phosphatase PTEN is under control of costimulation and regulates proliferation in human T cells

The phosphatidylinositol phosphatase gene PTEN is a dual specific phosphatase acting on phospho amino acids but also on three phosphorylated inositol phospholipids. Present results demonstrate that PTEN is inducible by costimulatory signals in human...
Authors: Schmidt-Weber CB, Wohlfahrt JG, Akdis CA and Blaser K

Mesenchymal-epithelial interactions in the skin: increased expression of dickkopf1 by palmoplantar fibroblasts inhibits melanocyte growth and differentiation

We investigated whether or not the topographic regulation of melanocyte differentiation is determined by mesenchymal-epithelial interactions via fibroblast-derived factors. The melanocyte density in palmoplantar human skin (i.e., skin on the palms...
Authors: Yamaguchi Y, Itami S, Watabe H, Yasumoto K, Abdel-Malek ZA, Kubo T, Rouzaud F, Tanemura A, Yoshikawa...

RGS13 regulates germinal center B lymphocytes responsiveness to CXC chemokine ligand (CXCL)12 and CXCL13

Normal lymphoid tissue development and function depend upon directed cell migration. Providing guideposts for cell movement and positioning within lymphoid tissues, chemokines signal through cell surface receptors that couple to heterotrimeric G...
Authors: Shi GX, Harrison K, Wilson GL, Moratz C and Kehrl JH

Human dendritic cells genetically engineered to express cytosolically retained fragment of prostate-specific membrane antigen prime cytotoxic T-cell responses to multiple epitopes

The ability of two plasmid DNA vaccines to stimulate lymphocytes from normal human donors and to generate antigen-specific responses is demonstrated. The first vaccine (truncated; tPSMA) encodes for only the extracellular domain of prostate-specific...
Authors: Mincheff M, Zoubak S, Altankova I, Tchakarov S, Makogonenko Y, Botev C, Ignatova I, Dimitrov R,...

Targeting combinatorial transcriptional complex assembly at specific modules within the interleukin-2 promoter by immunosuppressant SB203580

The proximal promoter sequence of the interleukin-2 (IL-2) gene contains a series of composite sites or modules that controls much of its responsiveness to environmental stimuli. The integrated targeting of these modules is therefore a major mode of...
Authors: Smith JL, Collins I, Chandramouli GVR, Butscher WG, Zaitseva E, Freebern WJ, Haggerty CM, Doseeva V...

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

c-Myc degradation induced by DNA damage results in apoptosis of CHO cells

Although tripchlorolide (TC), a compound purified from a Chinese herb Tripterygium Wilfordii Hook, has been demonstrated to be a potent antitumor agent, its mechanisms of action are unknown. The present study shows that TC induces apoptosis of...
Authors: Jiang MR, Li YC, Yang Y and Wu JR

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
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