Showing 1-30 of 185 results for "

N6287

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Laura Castellini et al.
Nucleic acids research, 45(7), 3674-3692 (2017-01-12)
The p53 tumor suppressor protein plays a critical role in orchestrating the genomic response to various stress signals by acting as a master transcriptional regulator. Differential gene activity is controlled by transcription factors but also dependent on the underlying chromatin...
Akiko Yamauchi-Yamada et al.
The Journal of dermatology, 41(12), 1058-1064 (2014-12-03)
Molluscum contagiosum (MC) may persist for many weeks, evading host immunity. We studied the mechanism of immune escape phenomenon in MC, and the possible inducer of apoptosis. Using tissue samples of MC, we examined the numbers of epidermal Langerhans cells...
Noor Gammoh et al.
Journal of virology, 83(3), 1538-1543 (2008-11-14)
The regulation of human papillomavirus (HPV) gene expression by the E2 protein is a critical feature of the viral life cycle. Previous studies have shown an important role in transcription for the ubiquitin-proteasome pathway, but its role in HPV gene...
Sirtuin 7 promotes cellular survival following genomic stress by attenuation of DNA damage, SAPK activation and p53 response
Kiran S, et al.
Experimental Cell Research, 331(1), 123-141 (2015)
Erin R Aho et al.
Cell reports, 26(11), 2916-2928 (2019-03-14)
The chromatin-associated protein WDR5 is a promising target for pharmacological inhibition in cancer. Drug discovery efforts center on the blockade of the "WIN site" of WDR5, a well-defined pocket that is amenable to small molecule inhibition. Various cancer contexts have been proposed...
Baharan Fekry et al.
Nature communications, 9(1), 4149-4149 (2018-10-10)
Ceramides are important participants of signal transduction, regulating fundamental cellular processes. Here we report the mechanism for activation of p53 tumor suppressor by C16-ceramide. C16-ceramide tightly binds within the p53 DNA-binding domain (Kd ~ 60 nM), in close vicinity to the Box V...
D Belletti et al.
International journal of pharmaceutics, 490(1-2), 85-93 (2015-05-20)
In this investigation, Nutlin-3 (Nut3), a novel antitumor drug with low water solubility (<0.1mg/L at 25°C), was loaded into liposomes (Lipo-Nut3), polymeric nanoparticles (NPs-Nut3) and nanoparticles engineered with an antibody direct against Syndecan-1/CD 138 (Syn-NPs-Nut3) to obtain carriers targeted to...
Wietske van der Ent et al.
The Journal of pathology, 233(4), 415-424 (2014-07-01)
Translocations involving ETS-transcription factors, most commonly leading to the EWSR1-FLI1 fusion protein, are the hallmark of Ewing sarcoma. Despite knowledge of this driving molecular event, an effective therapeutic strategy is lacking. To test potential treatment regimes, we established a novel...
Lauren A Gillory et al.
The Journal of surgical research, 196(2), 339-349 (2015-04-12)
Neuroblastoma is the most common extracranial solid tumor of childhood and is responsible for over 15% of pediatric cancer deaths. Focal adhesion kinase (FAK) is a nonreceptor tyrosine kinase that is important in many facets of neuroblastoma tumor development and...
Else Driehuis et al.
Cancer discovery, 9(7), 852-871 (2019-05-06)
Previous studies have described that tumor organoids can capture the diversity of defined human carcinoma types. Here, we describe conditions for long-term culture of human mucosal organoids. Using this protocol, a panel of 31 head and neck squamous cell carcinoma...
Nikia Laurie et al.
Molecular and cellular biology, 29(23), 6268-6282 (2009-09-30)
In the 1970s, several human retinoblastoma cell lines were developed from cultures of primary tumors. As the human retinoblastoma cell lines were established in culture, growth properties and changes in cell adhesion were described. Those changes correlated with the ability...
Boah Lee et al.
Biochemical and biophysical research communications, 514(2), 518-523 (2019-05-06)
Irinotecan is a strong anticancer drug whose mechanism of action has been reported only for the inhibition of DNA topoisomerase I (Topo I) through its active metabolite SN-38. In this study, we present a new mechanism of Irinotecan which inhibits...
Seung Woo Chung et al.
Biomaterials, 182, 35-43 (2018-08-14)
Metronomic chemotherapy, which is defined as a low-dose and frequent administration of cytotoxic drugs without drug-free breaks, has been recently emerged as an alternative to traditional MTD therapy and has shown therapeutic benefit in breast cancer patients in numbers of...
Luca Di Leo et al.
Oncogene, 38(11), 1860-1875 (2018-10-28)
Metabolic reprogramming is a typical feature of cancer cells aimed at sustaining high-energetic demand and proliferation rate. Here, we report clear-cut evidence for decreased expression of the adipose triglyceride lipase (ATGL), the first and rate-limiting enzyme of triglyceride hydrolysis, in...
Kai Yang et al.
Nature communications, 7, 13599-13599 (2016-11-26)
The nucleolus has been recently described as a stress sensor. The nucleoplasmic translocation of nucleolar protein nucleophosmin (NPM1) is a hallmark of nucleolar stress; however, the causes of this translocation and its connection to p53 activation are unclear. Using single...
Abdelouahid El-Khattouti et al.
Cancer letters, 357(1), 83-104 (2014-12-03)
According to the cancer stem-like cell (CSC) hypothesis, neoplastic clones are maintained by a small fraction of cells with stem cell properties. Also, melanoma resistance to chemo- and radiotherapy is thought to be attributed to melanoma stem-like cells (MSCs). Caffeic...
Alexis R Barr et al.
Nature communications, 8, 14728-14728 (2017-03-21)
Following DNA damage caused by exogenous sources, such as ionizing radiation, the tumour suppressor p53 mediates cell cycle arrest via expression of the CDK inhibitor, p21. However, the role of p21 in maintaining genomic stability in the absence of exogenous...
Yue Li et al.
Nature communications, 9(1), 2494-2494 (2018-06-29)
Fragile X syndrome (FXS) is the most prevalent inherited intellectual disability, resulting from a loss of fragile X mental retardation protein (FMRP). Patients with FXS suffer lifelong cognitive disabilities, but the function of FMRP in the adult brain and the...
Thiagarajan Venkatesan et al.
Cells, 7(5) (2018-05-12)
The Murine Double Minute 2 (MDM2) amplification or overexpression has been found in many tumors with high metastatic and angiogenic ability. Our experiments were designed to explore the impact of MDM2 overexpression, specifically on the levels of angiogenesis-related genes, which...
Amine Bouafia et al.
PLoS genetics, 10(5), e1004309-e1004309 (2014-05-17)
Genomic instability is a major hallmark of cancer. To maintain genomic integrity, cells are equipped with dedicated sensors to monitor DNA repair or to force damaged cells into death programs. The tumor suppressor p53 is central in this process. Here...
Ling Wu et al.
The Analyst, 144(20), 6033-6040 (2019-09-11)
Phosphorylation serves as an important post-translational modification implicated in cellular signaling and regulation. In this work, real-time monitoring of site-specific phosphorylation of p53 protein by several protein kinases, followed by its interaction with MDM2 protein was conducted using surface plasmon...
Natalia Rueda-Rincon et al.
Oncotarget, 6(25), 21240-21254 (2015-06-11)
The p53 tumor suppressor is the central component of a complex network of signaling pathways that protect organisms against the propagation of cells carrying oncogenic mutations. Here we report a previously unrecognized role of p53 in membrane phospholipids composition. By...
Susana Simões-Sousa et al.
Cell reports, 25(3), 749-760 (2018-10-18)
Deviating from the normal karyotype dramatically changes gene dosage, in turn decreasing the robustness of biological networks. Consequently, aneuploidy is poorly tolerated by normal somatic cells and acts as a barrier to transformation. Paradoxically, however, karyotype heterogeneity drives tumor evolution...
Tuan M Tran et al.
Immunity, 51(4), 750-765 (2019-09-08)
Immunity that controls parasitemia and inflammation during Plasmodium falciparum (Pf) malaria can be acquired with repeated infections. A limited understanding of this complex immune response impedes the development of vaccines and adjunctive therapies. We conducted a prospective systems biology study...
Felipe de Sousa e Melo et al.
Nature, 543(7647), 676-680 (2017-03-31)
Cancer stem cells (CSCs) have been hypothesized to represent the driving force behind tumour progression and metastasis, making them attractive cancer targets. However, conclusive experimental evidence for their functional relevance is still lacking for most malignancies. Here we show that...
Hui Su et al.
Experimental and therapeutic medicine, 17(4), 2451-2456 (2019-03-25)
Ulcerative colitis (UC) is an important risk factor for the occurrence of colon cancer, and changes in expression of p53 and inflammatory factors are closely related to the pathogenesis of colon cancer. Therefore, changes in expression of p53 and inflammatory...
Tsukasa Oda et al.
Journal of cell science, 131(9) (2018-04-11)
Heat shock transcription factor 1 (HSF1) regulates the expression of a wide array of genes, controls the expression of heat shock proteins (HSPs) as well as cell growth. Although acute depletion of HSF1 induces cellular senescence, the underlying mechanisms are...
Chiara Agnoletto et al.
Oncotarget, 5(12), 4347-4360 (2014-06-26)
The anti-leukemic activity of the mitochondria-targeting small molecule sodium dichloroacetate (DCA), used alone and in association with the small molecule inhibitor of the p53/MDM2 interaction Nutlin-3, was analyzed in primary B-chronic lymphocytic leukemia (B-CLL) samples (n=22), normal peripheral blood cells...
Martin L Read et al.
Endocrinology, 155(4), 1222-1234 (2014-02-11)
The PTTG1-binding factor (PBF/PTTG1IP) has an emerging repertoire of roles, especially in thyroid biology, and functions as a protooncogene. High PBF expression is independently associated with poor prognosis and lower disease-specific survival in human thyroid cancer. However, the precise role...
Lyubomir T Vassilev et al.
Science (New York, N.Y.), 303(5659), 844-848 (2004-01-06)
MDM2 binds the p53 tumor suppressor protein with high affinity and negatively modulates its transcriptional activity and stability. Overexpression of MDM2, found in many human tumors, effectively impairs p53 function. Inhibition of MDM2-p53 interaction can stabilize p53 and may offer...