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Human OCT4 Protein expressed in HEK-293 Cells - ABIN2727872
Soufi, Garcia, Jaroszewicz, Osman, Pellegrini, Zaret: Pioneer transcription factors target partial DNA motifs on nucleosomes to initiate reprogramming. in Cell 2015
a novel signal circuit of Stat3 (zeige STAT3 Proteine)/Oct-4/c-Myc (zeige MYC Proteine) was identified for regulating stemness-mediated Doxorubicin resistance in triple-negative breast cancer
Secretome analysis revealed that Oct4 upregulated interleukin 24 (IL24 (zeige IL24 Proteine)) expression through STAT3 (zeige STAT3 Proteine) and NFkappaB (zeige NFKB1 Proteine) signaling, and siRNA against IL24 (zeige IL24 Proteine) increased IRinduced senescence, whereas recombinant human IL24 (zeige IL24 Proteine) suppressed it. The results of the present study indicated that Oct4 confers IR resistance on breast cancer cells by suppressing IRinduced premature senescence through STAT3 (zeige STAT3 Proteine)- and NFkappaB (zeige NFKB1 Proteine)-mediated IL24 (zeige IL24 Proteine) production.
BEX4 (zeige BEX4 Proteine) positively regulated the expression of OCT4, silencing of which reduced the proliferation of A549 and H1975cells with over-expressed BEX4 (zeige BEX4 Proteine).
Oct4 transcriptionally activates NEAT1 via promoter and MALAT1 via enhancer binding to promote cell proliferation and motility, and led to lung tumorigenesis and poor prognosis.
POU5F1 expression is suggested to be a prognostic factor in patients with colorectal cancer.
that OCT4 is implicated in the differentiation arrest at least in some types of acute myeloid leukemia (zeige BCL11A Proteine)
Overexpressed TWIST1 (zeige TWIST1 Proteine) can be correlated with upregulation of the cancer stem cell marker OCT4 and the protein may play critical regulatory role in OCT4 gene expression.
rs2394882 in cancer stem cells gene POU5F1 is associated with prostate cancer recurrence.
The emerging roles of OCT4 in coordinating the cell cycle progression, the maintenance of pluripotency and the glycolytic metabolism in embryonic stem cells have been discussed. (Review)
Link between embryonic stem cell pluripotency and homologous allelic pairing of Oct4 loci.
Cytoplasmic CD44 (zeige CD44 Proteine) and absence of nuclear Oct3/4 suggest that the cells of cardiac sarcomas may represent 'daughter' stem cells that no longer have the capacity for tumour initiation, but have subsequently developed new lines of partial differentiation.
Lack of restricted OCT4 protein, and inner cell mass localization of NANOG in primate blastocysts, suggests that NANOG may determine inner cell mass fate more specifically during primate development.
Western blot analysis were conducted on developing hatchlings with Oct4 antibody and at 13.6 and 21.6mugL(-1)dose,it showed over expression elucidating stimulatory role of nanosilver. In silico analysis depicted a firm interaction of nanosilver with Oct4 revealing their key role in growth stimulation of developing embryos.
The authors show, at single-cell resolution in vivo, that Pou5f3 complexes with Nanog to pattern mesendoderm differentiation at the blastula stage.
Data suggest that, in developing gastrula, Znfl1 controls developmental gene expression of Hoxb1b in embryonic posterior neuroectoderm by acting upstream of Pou5f3 and Sall4 (zeige SALL4 Proteine); these proteins appear to be involved in neurogenesis. (Znfl1 = zinc finger-like gene 1; Hoxb1b = homeobox B1b protein; Pou5f3 = POU domain class 5 transcription factor 3 (zeige TCF3 Proteine); Sall4 (zeige SALL4 Proteine) = spalt-like transcription factor 4 (zeige TCF4 Proteine))
Regulation of mych by Pou5f1 appears to be direct transcriptional activation.
The posttranslational modification by phosphorylation opens the possibility that Pou5f1 may be subject to temporal or region specific modulation of its activity or stability by embryonic signaling mechanisms.
discuss mechanistic implications of simultaneous activation of transcriptional targets by ubiquitous, like Pou5f1, and region-specific inducers, emerging as a common regulatory motif in early development
maternal Nanog (zeige NANOG Proteine), Pou5f1 and SoxB1 are required to initiate the zygotic developmental program and induce clearance of the maternal program by activating miR (zeige MYLIP Proteine)-430 expression
thses data position Pou5f1 and SOX (zeige PIPOX Proteine)-POU sites at the center of the zygotic gene activation network of vertebrates and provide a link between zygotic gene activation and pluripotency control.
The defects due to HEP induction were rescued by introducing wild-type pou2 mRNA before the heat treatments.
Vox plays a key role downstream of BMP signals in regulating the capacity of Nodal to induce endoderm versus mesoderm by modulating the activity of the Casanova/Pou2 regulatory system.
sequences of mRNA and translated protein of the newly identified genes and those of POU5F1 were aligned to their mammalian orthologs to determine the degree of evolutionary conservation
Higher values of OCT-4 expression were observed in embryos and endometrial tissue in females reproduced under heat conditions.
protein expression during rabbit embryonic development: investigation of temporal and spatial relationship of expression of Oct-4, Cdx-2 (caudal type homeobox transcription factor 2 (zeige CDX2 Proteine)) and histone H4 (acetylated at lysine 5) in morula/blastocysts
The signal may have reflected the regulation of Oct-4 through enhancer switching and therefore may be related to cell lineage formation in rabbit embryos.
The POU5F1 gene is strictly regulated during early embryo development.
Zfp127 is a novel regulator of Oct4, and may become a potent target to improve cellular reprogramming.
Here we describe an optimized DamID method coupled with next-generation sequencing (DamID-seq) in mouse cells and demonstrate the identification of the binding sites of two TFs, POU5F1 (also known as OCT4) and SOX2 (zeige SOX2 Proteine), in as few as 1000 embryonic stem cells (ESCs (zeige NR2E3 Proteine)) and neural stem cells (NSCs), respectively.
Data show that OCT4 protein impedes mouse embryonic stem cells (mESCs) differentiation despite MITF (zeige MITF Proteine) transcription factor (MITF (zeige MITF Proteine)) expression.
These results indicate a role for Oct4 in orchestrating multiple fates and enabling expansion, correct patterning and lineage choice in the postimplantation epiblast.
Acidic pH induced OCT-4 expression in fibroblasts and stromal cells in tumor microenvironment.
Threonine(343) based OCT4-phosphorylation is crucial for the maintenance of ESC pluripotency and interaction with SOX2 (zeige SOX2 Proteine).
These results demonstrated that OCT4 phosphorylation on serine 347 by JNKs plays an important role in its stability, transcriptional activities, and self-renewal of mouse ESCs (zeige NR2E3 Proteine)
the epigenetic status of Oct4 and Nanog genes confirm that pre-induced pluripotent stem cells belong to an RVTg+OCT4+NANOG- state
These observations support a role for YY1 (zeige YY1 Proteine) meditating and/or regulating the interaction of OCT4 and SOX2 (zeige SOX2 Proteine) at a posttranscriptional level.
The results revealed that the synthesized complex decoy can concomitantly target Sox2 (zeige SOX2 Proteine) and Oct4, which subsequently represses the stemness properties of mESCs compared to controls through decreasing cell viability, arresting cell cycle in G0 /G1 phases, inducing apoptosis, and modulating differentiation in mESCs despite the presence of 2i/LIF (zeige LIF Proteine) in cell culture.
Activin A (zeige INHBA Proteine) and overexpression of SMAD2 (zeige SMAD2 Proteine)/3 significantly promoted expressions of porcine NANOG (zeige NANOG Proteine) and OCT4,maintaining induced pluripotent stem cell self-renewal through up-regulation of Nanog (zeige NANOG Proteine)/OCT4 expression.
Our results indicate that continuous expression of OCT-4 in blastomeres is essential for trophectoderm formation of porcine embryos.
These findings suggest that the 12-bp indel polymorphism of the Oct4 gene might be a potential DNA marker for selecting preferred individuals in relation to reproductive traits in pig marker-assisted selection breeding.
Oct4-overexpression enhances porcine ovarian stem cell differentiation in to oocyte-like cells.
showed novel molecular regulation of CDX2 (zeige CDX2 Proteine) on Oct4, and provided important clues for clarifying the mechanism of interaction between CDX2 (zeige CDX2 Proteine) and Oct4 in embryo of mammals other than mouse
Overexpression of Sox2 (zeige SOX2 Proteine) or Oct4 in bone mesenchymal stem cells in culture media containing a basic fibroblast growth factor (zeige FGF2 Proteine) results in higher proliferation and differentiation compared to controls.
Oct4 positive stem/progenitor swine lung epithelial cells are targets for influenza virus replication.
study shows that localization of octamer-binding protein 4(OCT4) is associated with an embryonic stem cell (ESC)-like morphology from porcine inner cell mass
OCT4 expression, in contrast to earlier speculations, at least in hatched blastocysts, resembles the expression pattern in the mouse embryo.
cells isolated from umbilical cord express three transcription factors,Oct-4, Sox-2 & Nanog, found in pluripotent stem cell markers both at the mRNA and protein level.
In OCT4 KO morulae (day 5), approximately 70% of the nuclei were OCT4 positive, indicating that maternal OCT4 mRNA partially maintains OCT4 protein expression during early development.
The use of a clonal cell populations with low senescence level, normal karyotype, and highest POU5F1 expression levels did not improve embryo development rates or quality following SCNT. As previously suggested, this study supports the notion that levels of POU5F1 expression in the donor nucleus do not impact the Somatic cell nuclear transfer results.
we concluded that OCT4 expression in somatic cells is not a good prognosis marker for selecting cell lines.
analysis of pluripotency gene expression of OCT4, SOX2 and NANOG and mRNA levels of some of their downstream targets in bovine oocytes and early embryos
Oct4 exhibited significant hypermethylation in sperm compared with that in oocytes
In contrast to protein distribution, regulation of Oct4 transcription is conserved between mammalian species.
analysis of CpG islands of bovine Leptin (zeige LEP Proteine) and POU5F1 genes in cloned bovine fetuses
The restoration of pluripotency can be directly observed in living cells or SCNT embryos from such Pou5f1-EGFP transgenic fetuses.
Oct4 cDNA and a 2.8-kb regulatory region upstream of its start codon were isolated and characterized
evaluated pattern of POU5F1 expression during early embryo development;study shows POU5F1 protein is present in cytoplasm and nucleus of immature oocytes, decreases during embryo development to day 5, then increases again within embryonic nuclei [POU5F1]
This gene encodes a transcription factor containing a POU homeodomain. This transcription factor plays a role in embryonic development, especially during early embryogenesis, and it is necessary for embryonic stem cell pluripotency. A translocation of this gene with the Ewing's sarcoma gene, t(6\;22)(p21\;q12), has been linked to tumor formation. Alternative splicing, as well as usage of alternative translation initiation codons, results in multiple isoforms, one of which initiates at a non-AUG (CUG) start codon. Related pseudogenes have been identified on chromosomes 1, 3, 8, 10, and 12.
POU domain transcription factor OCT4
, POU domain, class 5, transcription factor 1
, POU-type homeodomain-containing DNA-binding protein
, octamer-binding protein 3
, octamer-binding protein 4
, octamer-binding transcription factor 3
, octamer-binding transcription factor-3
, POU class 5 homeobox 1
, POU domain class 5 transcription factor 1
, POU domain gene 2
, spiel ohne grenzen
, spiel ohne grenzen/pou2
, octamer binding transcription factor 4
, Octamer-binding transcription factor 3
, octamer-binding transcription factor 4