c-Rel

..We demonstrate that c-Rel, but not NF-kappaB1, promotes the development of Treg progenitors. Thus, a CD28/c-Rel-dependent pathway is involved in initiating Treg development...

..70, combined P = 2.84 × 10(-50)). These data provide new insight into the pathogenesis of cHL...

..Transactivation of the IL-2Ralpha and HIV-kappaB-driven promoters by c-Rel was augmented by coexpression of MEKK1. These results demonstrate the first significant role for the MEKK1 kinase cascade module in c-Rel-mediated transcription...

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..The CD28 response element (CD28RE) in the IL-2 enhancer is nonameric and similar to the kappaB DNA target sites recognized by p65 homodimers...

..The effect of Tat101 on CD28REs in the IL-8 promoter and the subsequent up-regulation of IL-8 secretion is likely to contribute to the immune dysregulation observed during HIV-1 infection...

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..Thus, a three-dimensional collagen lattice maintains the dermal fibroblast phenotype, in part, through the activation of PKC-zeta...

..DiHDA-glycerol is likely acting on many other transcription factors targeting distinct genes implied in up regulation of the immune system...

..Thus, cooperative binding of factors to nucleosomes is partially redundant with the function of the SWI/SNF complex...

..These results demonstrate the presence of an interaction between internal and C-terminal regions of the c-rel protein that is important for the ability of c-rel to regulate the proliferation of lymphoid cells...

..These results suggest that transactivation may be necessary but is not sufficient for transformation by rel proteins...

..We further showed that the primary transduction event involving the turkey c-rel gene could have occurred with a replication-competent Rev having v-rel-specific mutations in codons 3, 6, and 9 of the env gene...

..Interestingly, those c-Rel mutants not only did not respond to TNFalpha but also acted as dominant negative forms of nuclear factor kappaB activation...

..Tax induction of NF-kappaB species is regulated, at least in part, at a pretranslational level involving increases in c-rel and KBF1 mRNA...

..Our results show that the oncogenicity of Rel proteins requires activation region I and suggest that the biological function of rel and dorsal proteins depends on transcription activation by this region...

..The results illustrate the ability of the NF-kappaB pathway to respond to differentiation stimuli by activating in a cell-specific manner unique signalling pathways and subsets of NF-kappaB target genes...

..These opposing biological actions of v-Rel occurring in cells at distinct stages of differentiation may have important implications for the mechanism of v-Rel-mediated transformation occurring in avian splenocytes...

..To investigate the correlation of radiation-induced changes of brain tissue after radiosurgery in patients with cerebral arteriovenous malformations (AVMs) with treatment planning and dose distribution parameters...

..This study was designed to investigate the expression differences of NF-kappa B and its regulated genes between human primary transitional cell carcinoma(TCCs) of bladder and non-cancer bladder mucosa and its clinical significance...

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..Rather, these results support the hypothesis that p40 regulates cellular localization of v-Rel and c-Rel by distinct mechanisms...

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..These results indicate for the first time that dysregulated expression of c-Rel, as observed in breast cancers, is capable of contributing to mammary tumorigenesis...

..Our results show that the carboxy-terminus of p68c-rel inhibits nuclear localization of the protein, and suggest that subcellular location may be a form of regulation of the activity of p68c-rel...

..RpoB and RpoC sequences of the species which do not possess a rel like gene do not exhibit specific insertions or deletions in the ppGpp binding regions...

..This suggests that corticospinal excitability modulation depends not only on concurrent spinal motoneuronal activity and muscle tension but also on the time-series pattern of their changes during muscle contraction and relaxation...

..This review discusses the molecular aspects of transformation by REV-T in the context of other oncogene-encoded proteins...

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..The ability of v-Rel to escape IkappaBalpha regulation allows for the gradual and sustained elevation of ch-IAP1 expression directly contributing to the transforming properties of v-Rel...

..These v-Rel mice should aid in the study of lymphoma development, T-cell development and NF-kappa B regulation...

..The results suggest that the NF-kappaB is frequently activated in MTCs. The results also support the hypothesis that RET activation by somatic or germ line mutations may be responsible for NF-kappaB activation in MTCs...

..Deletion analysis indicated that the N-terminal region of pp59v-rel is required for the transforming activity, whereas as many as 100 C-terminal amino acids could be deleted without complete loss of the activity...

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..This suggests that the conserved domain of the rel related family of proteins performs a common function that is modulated by the carboxyl terminal domain...

..We also show that specific inhibitors of thioredoxin reductases impair the phosphorylation of the c-Rel protein, suggesting that the redox regulation of the protein controls its phosphorylation...

..We propose that c-rel protein has an N-terminal regulatory domain and a C-terminal transactivation domain which together modulate its function as a transcriptional transactivator...

..Conditional and partially defective mutants such as those described herein may be useful for identifying physiological responses and genes regulated by specific Rel/NF-kappaB family members...

..Together, these results show that Pin1 is an important regulator of Rel/NF-kappaB transforming activity and suggest that Pin1 may be a potential therapeutic target in Rel/NF-kappaB-dependent leukemia/lymphomas...

..This is the first study investigating differences in expression kinetics of immune genes in response to challenge from different MAMPs in this economically important bivalve species...

..The two high-molecular-weight proteins (p115 and p124) and p75c-rel were not detected in the nuclear complex. In the cytosolic complexes, pp40 was heavily phosphorylated, whereas the nuclear form was much less extensively phosphorylated...

..Our results support a model in which loss of IkappaB alpha-mediated control over c-Rel leads to oncogenic activation of c-Rel...

..We also demonstrate that the RCAS-rel-transformed hematopoietic cells exhibited a distinct differentiation phenotype...

..Moreover, the extent of cell-specific transactivation by v-rel correlated with its toxic effect in these same cells...

..Our results support the hypothesis that v-rel encodes a protein which can act either in the nucleus or in the cytoplasm to transform spleen cells...

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..8, 9). Intensity dependence for noise interference was more variable than for pure tones (-32 dB to -45 dB rel emitted sound pressure level Fig. 10).(ABSTRACT TRUNCATED AT 250 WORDS)..

..In this work, the genetic network controlled by the stringent response was characterized in the amino acid-producing Corynebacterium glutamicum...

..The present work suggests that both the NF-kappaB/Rel and AP-1 activated in endothelial cells by stimulation with VT-1 binds to the TF-kappaB and proximal AP-1 binding sites, respectively, of the TF promoter...

..These results support a model in which activation of gene expression by p59v-rel is required for its ability to induce oncogenic transformation...

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..3 cells with PGG-Glucan activates IkappaB-alpha via PKC and/or PTK pathways, permitting translocation of the rel-A/CEBP-beta heteromer complex to the nucleus and increases its DNA-binding affinity...

..However, in spite of these differences, all of these proteins resulted in the transformation of CEFs...

..Moreover, an analysis of the subcellular localization of different rel proteins revealed an inverse correlation between the size of the protein and the proportion in the nucleus of lymphoid cells...

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..The novel findings of differential regulation of NF-kappaB proteins by estrogen provide fresh insight into potential mechanisms by which estrogen can regulate NF-kappaB-dependent immunological events...

..Our results demonstrate that structural alterations of NFkappaB2, c-rel and bcl-3 genes at the Southern Blotting level are rare events that do not contribute to lymphoid or myeloid transformation in the majority of NHL or cMPS patients...

..The aim of this study was to evaluate leukocyte-endothelial interactions in the rat mesentery in vivo after CLP and REL...

..Thus, individual members of the rel family have differential effects of the c-myc promoter, which can modulate overall transcriptional activity and allow for precise regulation of this oncogene under diverse physiologic conditions...

..In conclusion, a new action of alprazolam was elucidated, as shown in the inhibition of c-Rel/p65- and c-Rel/p50-regulated transcription...

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..We conclude that rpS3 participates in NF-?B signaling and that a genetic increase in the activity of the NF-?B subunit c-Rel results in protection against cell death in human islets...

..The study of c-Rel knockout mice in several disease models will also be discussed as they reveal an important role for c-Rel in response to allergens, auto-antigens, allo-antigens and pathogenic infection...

..These molecular features may help guide treatment. AZT and IFN-alpha is a suppressive rather than a curative regimen, and patients in clinical remission should remain on maintenance therapy indefinitely...

..To assess the degree of interspecies variation in the REL of three animals commonly used to model human disease...

..These findings may have important implications for understanding how Rel TAD mutations can lead to a more oncogenic phenotype...

..Their presence in actively proliferating progenitor cells, detected by BrdU staining, further suggests that NF-kappaB may be part of a signaling pathway that is important for neurogenesis...

..Based on these observations, we conclude that c-Rel controls IL-23 p19 gene expression through two kappaB sites in the p19 promoter, and propose a c-Rel-dependent enhanceosome model for p19 gene activation...

..The data suggest that REL aberrations are a genetic mechanism contributing to constitutive nuclear factor (NF)-kappa B/Rel activation in cHL...

..4. The results obtained from studies investigating Q (rel) distributions in isolated lung models must be interpreted cautiously because the isolated lung set-up significantly affects the spatial distribution of pulmonary flow...

..The c-Rel-regulated genes identified here support a role for c-Rel in inflammatory responses as well as in the promotion of cell growth and survival...

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..These results indicate that the NFKB-2 gene codes for an inducible NF-kappa B transcription factor with the capability of differentially regulating NF-kappa B transcription depending on its abundance in the nucleus...

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..T cell clones derived from AD patients failed to sufficiently translocate c-Rel and p65 into the nucleus following activation. Thus, impaired nuclear translocation of c-Rel and p65 may determine an impaired Th1 cytokine response in AD...

..In summary, constitutive NF-kappaB/Rel activation independent of endogenous IKK activation may be a common finding in Ph+ ALL. However, targets of NF-kappaB/Rel mediated transcriptional regulation in this disease remain to be identified...

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..The timing and pattern of expression of the c-rel proto-oncogene in the different cell lineages suggest that temporally regulated changes in c-Rel expression may be required for vertebrate hematopoiesis...

..Furthermore, the trimer state of fragment 1-394 appears to be a catalytically less efficient state than the monomer state...

..Our results indicate that L. major amastigotes activate NF-kappaB by specifically inducing p50- and c-Rel-containing complexes which are likely involved in the regulation of cytokine synthesis...

..Collectively, these findings establish that NF-kappaB1 and c-Rel, while largely dispensable for TLR-9-induced cDC activation, are critical for regulating differentiation and survival programs during pDC activation...

..Together, these studies indicate that although c-Rel is an important regulator of innate immune responses, it also plays an important role in optimization and maintenance of adaptive T cell responses during infection...

..The transforming protein encoded by v-rel is a relatively stable protein with a half-life of approximately 7 to 8 hr in transformed lymphoid cells...

..In any event, REL may provide an appropriate therapeutic target for certain human lymphoid cell malignancies...

..These results indicate that elevated TC10 activity contributes to v-Rel-mediated transformation of CEFs and demonstrate for the first time that a Rho factor alone is capable of inducing the in vitro transformation of primary cells...

..The results are consistent with a role for Rel(Gsu) in regulating growth, stress responses, and Fe(III) reduction in G. sulfurreducens under conditions likely to be prevalent in subsurface environments...

..Our results demonstrate that both v-rel and c-rel interact with a variety of cellular proteins and suggest that this association is important for the function or regulation of the rel protein...

..These results provide the evidence that the association of RelA and c-Rel with the proximal kappaB site in the p19 promoter is required to induce of p19 expression...

..These findings demonstrate that in the B lineage overlapping roles for NF-kappaB1 and c-Rel appear to be restricted to regulating the activation and function of mature cells...

..In summary, these results suggest that v-Rel immortalizes chicken spleen cells through a pathway that involves the Bcl-2 family of proteins, and suggest that one pathway of proteolysis of I kappa B-alpha involves an ICE-like protease...

..Collectively, these results establish that Rel is a positive or negative regulator of transcription in macrophages and that Rel has distinct roles in different macrophage populations...

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..DNA binding of UC and LC could, furthermore, be inhibited by I kappa B-alpha.(ABSTRACT TRUNCATED AT 250 WORDS)..

..The combined biochemical and genetic experiments are expected to generate valuable insights into processes involved in immunodifferentiation and oncogenesis by rel and ets related proteins...

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..Completion of the proposed studies will provide a 'head start' to initiate clinical trials in prostate cancer patients and/or high-risk individuals. ..

..Completion of the proposed studies will provide a 'head start' to initiate clinical trials in prostate cancer patients and/or high-risk individuals. ..

..The goal of these studies is to determine whether, like NF-kappaB, Gadd45beta represents a target for cancer therapy. ..

..The goal of these studies is to determine whether, like NF-kappaB, Gadd45beta represents a target for cancer therapy. ..

..These studies on the mechanisms of oncogenesis by v-Rel will provide insight into the contributions of Rel/NF-kappaB proteins in tumorigenesis. ..

..These studies on the mechanisms of oncogenesis by v-Rel will provide insight into the contributions of Rel/NF-kappaB proteins in tumorigenesis. ..

..We expect that this study will contribute to better rational design of drugs to target specific pathophysiology. ..

..Furthermore, these findings will provide important insights into the role of NF- kappaB/Rel factors in the control of apoptosis of normal and transformed hepatocytes of potential clinical relevance. ..

..We expect that this study will contribute to better rational design of drugs to target specific pathophysiology. ..

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..4. To determine which Rel/NF-kappaB/I-kappa-alpha and bZIP complexes contribute to v-Rel's transforming ability in fibroblasts and v-rel hematopoietic target cells. ..

..Through these combined in vivo and in vitro experiments, we hope to gain key insights into the molecular events underlying HTLV-I Tax mediated leukemogenesis. ..

..Finally, the precise mechanism of Tax-induced transcriptional induction of c-rel gene will be explored by isolation and functional analyses of the human c-rel gene promoter. ..

..Elucidating the molecular mechanisms responsible for inhibiting NF-kB activity will undoubtedly help in designing novel strategies to treat human diseases associated overactivation of NF-kB. ..

..Elucidating the molecular mechanisms responsible for inhibiting NF-kB activity will undoubtedly help in designing novel strategies to treat human diseases associated overactivation of NF-kB. ..

..This proposal will examine the role of NF-?B in normal hematopoietic stem/progenitor cell function and test whether activation of NF-?B is sufficient to initiate and/or maintain LIC activity in AML. ..

..These studies should delineate the effect of in vivo acute alcohol on NF-kB signaling in monocytes relevant to inflammation, cirrhosis, atherosclerosis, and HIV infection. ..

..The effects of intracellular cAMP on the functional activity and phosphorylation of NFKB/Rel proteins will be investigated. A yeast two hybrid system will be used to identify additional factors which interact with NFKB. ..

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