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4870 results sorted by

The transcription factor AP-2 causes cell enlargement and insulin resistance in 3T3-L1 adipocytes

We have reported the association of variations in the AP-2beta transcription factor gene with type 2 diabetes. This gene was preferentially expressed in 3T3-L1 adipocytes in a differentiation-stage-dependent manner and preliminary experiments showed...
Authors: Tao Y, Maegawa H, Ugi S, Ikeda K, Nagai Y, Egawa K, Nakamura T, Tsukada S, Nishio Y, Maeda S,...

The Class II Phosphoinositide 3-Kinase C2Beta Is Not Essential for Epidermal Differentiation

Phosphoinositide 3-kinases (PI3Ks) regulate an array of cellular processes and are comprised of three classes. Class I PI3Ks include the well-studied agonist-sensitive p110 isoforms; however, the functions of class II and III PI3Ks are less well...
Authors: Harada K, Truong AB, Cai T and Khavari PA

Identification of the cAMP-Responsive Enhancer of the Murine ABCA1 Gene. Requirement for CREB1 and STAT3/4 Elements

OBJECTIVE: To determine the mechanism by which expression of the murine ABCA1 gene is highly induced by cAMP analogues. METHODS AND RESULTS: ABCA1 mRNA turnover cannot account for its induction by cAMP. Thus cAMP induction of ABCA1 mRNA occurs at a...
Authors: Le Goff W, Zheng P, Brubaker G and Smith JD

Scaffold protein harmonin (USH1C) provides molecular links between Usher syndrome type 1 and type 2

Usher syndrome (USH) is the most frequent cause of combined deaf-blindness in man. USH is clinically and genetically heterogeneous with at least 11 chromosomal loci assigned to the three USH types (USH1A-G, USH2A-C, USH3A). Although the different USH...
Authors: Reiners J, van Wijk E, Marker T, Zimmermann U, Jurgens K, Te Brinke H, Overlack N, Roepman R,...

Leucine-rich repeat kinase 2 (LRRK2) interacts with parkin, and mutant LRRK2 induces neuronal degeneration

Parkinson's disease (PD) is a disorder of movement, cognition, and emotion, and it is characterized pathologically by neuronal degeneration with Lewy bodies, which are cytoplasmic inclusion bodies containing deposits of aggregated proteins. Most PD...
Authors: Smith WW, Pei Z, Jiang H, Moore DJ, Liang Y, West AB, Dawson VL, Dawson TM, Ross CA

Interaction of nephrocystin-4 and RPGRIP1 is disrupted by nephronophthisis or Leber congenital amaurosis-associated mutations

RPGR-interacting protein 1 (RPGRIP1) is a key component of cone and rod photoreceptor cells, where it interacts with RPGR (retinitis pigmentosa GTPase regulator). Mutations in RPGRIP1 lead to autosomal recessive congenital blindness [Leber congenital...
Authors: Roepman R, Letteboer SJ, Arts HH, van Beersum SE, Lu X, Krieger E, Ferreira PA and Cremers FP

Short-Interfering RNA-Mediated Lck Knockdown Results in Augmented Downstream T Cell Responses

The Src family kinase Lck is essential for T cell Ag receptor-mediated signaling. In this study, we report the effects of acute elimination of Lck in Jurkat TAg and primary T cells using RNA interference mediated by short-interfering RNAs. In cells...
Authors: Methi T, Ngai J, Mahic M, Amarzguioui M, Vang T and Tasken K

Cancer cells become susceptible to natural killer cell killing after exposure to histone deacetylase inhibitors due to glycogen synthase kinase-3-dependent expression of MHC class I-related chain a and B

We show that histone deacetylase (HDAC) inhibitors lead to functional expression of MHC class I-related chain A and B (MICA/B) on cancer cells, making them potent targets for natural killer (NK) cell-mediated killing through a NK group 2, member D...
Authors: Skov S, Pedersen MT, Andresen L, Thor Straten P, Woetmann A and Odum N

Identifying a common molecular mechanism for inhibition of MITF and STAT3 by PIAS3

Protein inhibitor of activated STAT3 (PIAS3) functions in vivo as a key molecule in suppressing the transcriptional activity of both microphthalmia transcription factor (MITF) and signal transducer and activator of transcription 3 (STAT3), two...
Authors: Levy C, Lee YN, Nechushtan H, Schueler-Furman O, Sonnenblick A, Hacohen S and Razin E

Modulation of specific surface receptors and activation sensitization in primary resting CD4+ T lymphocytes by the Nef protein of HIV-1

The human immunodeficiency virus type 1 (HIV-1) pathogenicity factor Nef increases viral replication in vivo. In immortalized cell lines, Nef affects the cell surface levels of multiple receptors and signal transduction pathways. Resting CD4(+) T...
Authors: Keppler OT, Tibroni N, Venzke S, Rauch S and Fackler OT
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