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4783 results sorted by

HAX-1, identified by differential display reverse transcription polyerase chain reaction, is overexpressed in lesional psoriasis

Psoriasis is a chronic inflammatory disease characterized by epidermal hyperplasia and an inflammatory infiltrate. The normal differentiation from basal to granular keratinocytes with subsequent apoptosis and cornification is disturbed in the...
Authors: Mirmohammadsadegh A, Tartler U, Michel G, Baer A, Walz M, Wolf R, Ruzicka T and Hengge UR

Cutting Edge: TGF-beta Induces a Regulatory Phenotype in CD4(+)CD25(-) T Cells through Foxp3 Induction and Down-Regulation of Smad7

CD4(+)CD25(+) regulatory cells are a subpopulation of T lymphocytes of thymic origin. However, recent data suggest an alternative commitment of regulatory T cells in the periphery, although the precise mechanism is unknown. In the present work, we...
Authors: Fantini MC, Becker C, Monteleone G, Pallone F, Galle PR and Neurath MF

Lymphotoxin and lipopolysaccharide induce NF-kappaB-p52 generation by a co-translational mechanism

The 'classical' NF-kappaB activation pathway proceeds via IkappaB kinase (IKK)-beta/gamma-mediated phosphorylation, induced ubiquitination and the degradation of small IkappaBs. An alternative, NF-kappaB-inducing kinase and IKK-alpha-dependent...
Authors: Mordmüller B, Krappmann D, Esen M, Wegener E and Scheidereit C

Involvement of Crm 1 in hepatitis B virus X protein-induced aberrant centriole replication and abnormal mitotic spindles

Hepatitis B virus (HBV) includes an X gene (HBx gene) that plays a critical role in liver carcinogenesis. Because centrosome abnormalities are associated with genomic instability in most human cancer cells, we examined the effect of HBx on...
Authors: Forgues M, Difilippantonio MJ, Linke SP, Ried T, Nagashima K, Feden, J, Valerie K, Fukasawa K and...

Illegitimate WNT signaling promotes proliferation of multiple myeloma cells

The unrestrained growth of tumor cells is generally attributed to mutations in essential growth control genes, but tumor cells are also influenced by signals from the environment. In multiple myeloma (MM), the factors and signals coming from the bone...
Authors: Derksen PWB, Tjin E, Meijer HP, Klok MD, Mac Gillavry HD, van Oers MHJ, Lokhorst HM, Bloem AC,...

Human parvovirus B19 nonstructural protein (NS1) induces cell cycle arrest at G1 phase

Human parvovirus B19 infects predominantly erythroid precursor cells, leading to inhibition of erythropoiesis. This erythroid cell damage is mediated by the viral nonstructural protein 1 (NS1) through an apoptotic mechanism. We previously...
Authors: Morita E, Nakashima A, Asao H, Sato H and Sugamura K

Brain development in mice lacking L1-L1 homophilic adhesion

A new mouse line has been produced in which the sixth Ig domain of the L1 cell adhesion molecule has been deleted. Despite the rather large deletion, L1 expression is preserved at normal levels. In vitro experiments showed that L1-L1 homophilic...
Authors: Itoh K, Cheng L, Kamei Y, Fushiki S, Kamiguchi H, Gutwein P, Stoeck A, Arnold B, Altevogt P and...

YY1 transcription factor down-regulates expression of CCR5, a major co-receptor for HIV-1

Expression of CCR5, a major coreceptor for human immunodeficiency virus type 1 (HIV-1), is regulated by a number of transcription factors. Here we report that the YY1 transcription factor down-regulates CCR5 promoter activity and that overexpression...
Authors: Moriuchi M and Moriuchi H

Targeted deletion of BMK1/ERK5 in adult mice perturbs vascular integrity and leads to endothelial failure

Big mitogen-activated protein kinase 1 (BMK1), also known as ERK5, is a member of the MAPK family. Genetic ablation of BMK1 in mice leads to embryonic lethality, precluding the exploration of pathophysiological roles of BMK1 in adult mice. We...
Authors: Hayashi M, Kim SW, Imanaka-Yoshida K, Yoshida T, Abel ED, Eliceiri B, Yang Y, Ulevitch RJ and Lee...

Novel cell specific and dominant negative anti apoptotic roles of p73 in transformed leukemia cells

Although extensive homology exists between related genes p53 and p73, recent data suggest that the family members have divergent roles. We demonstrate that the differential regulatory roles of p53 family member p73 are highly cell-context and...
Authors: Freebern W, Smith JL, Chaudhry SS, Haggerty CM and Gardner K
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