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Kristina Kirschner et al.
PLoS genetics, 11(3), e1005053-e1005053 (2015-03-20)
The downstream functions of the DNA binding tumor suppressor p53 vary depending on the cellular context, and persistent p53 activation has recently been implicated in tumor suppression and senescence. However, genome-wide information about p53-target gene regulation has been derived mostly
Jennifer Munkley et al.
Nucleic acids research, 39(7), 2671-2677 (2010-11-27)
Cyclin E supports pre-replication complex (pre-RC) assembly, while cyclin A-associated kinase activates DNA synthesis. We show that cyclin E, but not A, is mounted upon the nuclear matrix in sub-nuclear foci in differentiated vertebrate cells, but not in undifferentiated cells
Yaqun Zhang et al.
Prostate cancer and prostatic diseases, 23(1), 160-171 (2019-09-01)
p53 is a tumor suppressor that prevents cancer onset and progression, and mutations in the p53 gene cause loss of the tumor suppressor function of the protein. The mutant p53 protein in tumor cells can form aggregates which contribute to
Yuanping Zhang et al.
Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie, 111, 1315-1325 (2019-03-08)
Diabetic retinopathy (DR) seriously endangers human beings' health, uncovering the underlying mechanism might help to cure DR. In this study, we found that the effects of glucose on retinal pigment epithelium (RPE) varies in a dose dependent manner, high-glucose (50mM)
Xiaojing Xia et al.
Journal of cellular physiology, 234(10), 18970-18984 (2019-03-28)
Traditional Chinese medicine (TCM) are both historically important therapeutic agents and important source of new drugs. Halofuginone (HF), a small molecule alkaloid derived from febrifugine, has been shown to exert strong antiproliferative effects that differ markedly among various cell lines.
Yaming Qiao et al.
The Prostate, 67(16), 1719-1728 (2007-09-21)
Blockade of androgen activity is a major effective therapy for advanced prostate cancer. Estrogen analogs have been used for prostate cancer therapy for years presumably by inhibiting testosterone biosyntheses, but with considerable adverse events due to their classic estrogenic activity.
Matthew Hoare et al.
Nature cell biology, 18(9), 979-992 (2016-08-16)
Senescence, a persistent form of cell-cycle arrest, is often associated with a diverse secretome, which provides complex functionality for senescent cells within the tissue microenvironment. We show that oncogene-induced senescence is accompanied by a dynamic fluctuation of NOTCH1 activity, which
Cheng Zhang et al.
Oncology letters, 13(4), 2059-2070 (2017-04-30)
Human bone marrow stromal cells (hBMSCs) may contribute to the growth of tyrosine kinase inhibitor (TKI)-resistant chronic myelogenous leukemia (CML). However, there are certain differences in biology between CML and Philadelphia-positive acute lymphoblastic leukemia (Ph+ ALL). Little is known about
Sihem Zitouni et al.
PloS one, 12(8), e0183500-e0183500 (2017-08-30)
Fbw7 is a tumor suppressor often deleted or mutated in human cancers. It serves as the substrate-recruiting subunit of a SCF ubiquitin ligase that targets numerous critical proteins for degradation, including oncoproteins and master transcription factors. Cyclin E was the
Abdelhalim Loukil et al.
Scientific reports, 6, 27215-27215 (2016-06-10)
Cyclin A2 is a key player in the regulation of the cell cycle. Its degradation in mid-mitosis depends primarily on the ubiquitin-proteasome system (UPS), while autophagy also contributes. However, a fraction of cyclin A2 persists beyond metaphase. In this work
Kancharana Bala Bhaskara Rao et al.
FEBS letters, 593(16), 2177-2193 (2019-06-19)
Isocitrate dehydrogenases (IDHs) are metabolic enzymes that are mutated in several cancers, resulting in overproduction of d-2-hydroxyglutarate (D-2HG). However, the signalling pathways and factors that regulate mutant IDHs or their metabolites remain elusive. Here, we report that in synchronized cells
Christine L Nguyen et al.
Virology, 380(1), 21-25 (2008-08-23)
The human papillomavirus (HPV) E7 oncoprotein has been shown to associate with cyclin/CDK2 complexes. Here we present evidence that HPV E7 proteins can associate with cyclin A/CDK2 and cyclin E/CDK2 complexes in cells that lack retinoblastoma tumor suppressor family members
Hitomi Hasegawa et al.
PloS one, 9(12), e116048-e116048 (2014-12-30)
Activating transcription factor 2 (ATF2) and its homolog ATF7 are phosphorylated at Thr-69/Thr-71 and at Thr-51/Thr-53, respectively, by stress-activated MAPKs regulating their transcriptional functions in G1 and S phases. However, little is known about the role of ATF2 and ATF7
Yong Yu et al.
Cancer cell, 33(2), 322-336 (2018-02-14)
Oncogene-induced senescence, e.g., in melanocytic nevi, terminates the expansion of pre-malignant cells via transcriptional silencing of proliferation-related genes due to decoration of their promoters with repressive trimethylated histone H3 lysine 9 (H3K9) marks. We show here that structurally distinct H3K9-active
Jhih-Siang Syu et al.
Scientific reports, 7(1), 240-240 (2017-03-23)
The development and differentiation of steroidogenic organs are controlled by Ad4BP/SF-1 (adrenal 4 binding protein/steroidogenic factor 1). Besides, lysosomal activity is required for steroidogenesis and also enables adrenocortical cell to survive during stress. However, the role of lysosomal activity on
Chunyan Weng et al.
International journal of oncology, 42(1), 327-337 (2012-11-09)
Androgen deprivation therapy of prostate cancer with estrogens shows significant cardiovascular side-effects. To develop effective prostate cancer therapeutic agent(s) with minimal cardiovascular side-effects, we compared the effects of various estrogen receptor (ER) ligands on the modulation of dihydrotestosterone (DHT) actions
Qing-Hua Zhang et al.
The Journal of cell biology, 216(10), 3133-3143 (2017-08-19)
Cyclin A2 is a crucial mitotic Cdk regulatory partner that coordinates entry into mitosis and is then destroyed in prometaphase within minutes of nuclear envelope breakdown. The role of cyclin A2 in female meiosis and its dynamics during the transition
J E Dazard et al.
Oncogene, 19(33), 3693-3705 (2000-08-19)
p53 transcription factor is mutated in most skin cell carcinomas and in more than 50% of all human malignancies. One of its transcriptional targets is MDM2, which in turn down-regulates p53. The role of the p53/MDM2 regulatory loop upon genotoxic
Yasunori Fukumoto et al.
The Journal of biological chemistry, 289(18), 12313-12329 (2014-03-19)
The DNA damage checkpoint arrests cell cycle progression to allow time for repair. Once DNA repair is completed, checkpoint signaling is terminated. Currently little is known about the mechanism by which checkpoint signaling is terminated, and the disappearance of DNA
Emma L Hesketh et al.
Cell cycle (Georgetown, Tex.), 14(3), 333-341 (2015-02-07)
The minichromosome maintenance complex (MCM2-7) is the putative DNA helicase in eukaryotes, and essential for DNA replication. By applying serial extractions to mammalian cells synchronized by release from quiescence, we reveal dynamic changes to the sub-nuclear compartmentalization of MCM2 as
Lei Zhang et al.
Nature communications, 13(1), 360-360 (2022-01-20)
Human 53BP1 is primarily known as a key player in regulating DNA double strand break (DSB) repair choice; however, its involvement in other biological process is less well understood. Here, we report a previously uncharacterized function of 53BP1 at heterochromatin
Chia-Yih Wang et al.
Journal of cellular biochemistry, 119(1), 314-326 (2017-06-02)
Leucine-rich repeats and WD repeat domain containing protein 1 (LRWD1) is a testis-specific protein that mainly expressed in the sperm neck where centrosome is located. By using microarray analysis, LRWD1 is identified as a putative gene that involved in spermatogenesis.
Maryam Safari et al.
Molecular cancer research : MCR, 19(8), 1361-1374 (2021-05-30)
Histone deacetylase inhibitors (HDACi) induce hyperacetylation of histones by blocking HDAC catalytic sites. Despite regulatory approvals in hematological malignancies, limited solid tumor clinical activity has constrained their potential, arguing for better understanding of mechanisms of action (MOA). Multiple activities of
Yoko Nekooki-Machida et al.
Medical molecular morphology, 51(4), 217-226 (2018-06-06)
Acetylation of α-tubulin is a well-studied posttranscriptional modification, which is mostly catalyzed by α-tubulin N-acetyltransferase (ATAT1). ATAT1 possibly affects various cellular functions related with microtubules, such as intracellular transport, cell motility, cilia formation, and neuronal signaling. Here, we analyzed the
Kikumi Hata et al.
Journal of immunology (Baltimore, Md. : 1950), 173(4), 2453-2461 (2004-08-06)
The engagement of membrane-bound Igs (mIgs) results in growth arrest, accompanied by apoptosis, in the WEHI-231 murine B lymphoma cells, a cell line model representative of primary immature B cells. Inhibitor of differentiation (Id) proteins, members of the helix-loop-helix protein
Julien M D Legrand et al.
Nature communications, 10(1), 2278-2278 (2019-05-28)
Mammalian spermatogenesis is sustained by mitotic germ cells with self-renewal potential known as undifferentiated spermatogonia. Maintenance of undifferentiated spermatogonia and spermatogenesis is dependent on tightly co-ordinated transcriptional and post-transcriptional mechanisms. The RNA helicase DDX5 is expressed by spermatogonia but roles
Shin-Ya Isobe et al.
Cell reports, 36(2), 109383-109383 (2021-07-15)
DNA double-strand breaks (DSBs) are repaired mainly by non-homologous end joining (NHEJ) or homologous recombination (HR). RIF1 negatively regulates resection through the effector Shieldin, which associates with a short 3' single-stranded DNA (ssDNA) overhang by the MRN (MRE11-RAD50-NBS1) complex, to
Mahito Sadaie et al.
Molecular biology of the cell, 26(17), 2971-2985 (2015-07-03)
Cellular senescence is a widespread stress response and is widely considered to be an alternative cancer therapeutic goal. Unlike apoptosis, senescence is composed of a diverse set of subphenotypes, depending on which of its associated effector programs are engaged. Here
Jason M Bodily et al.
Journal of virology, 85(17), 8852-8862 (2011-06-24)
Human papillomaviruses (HPVs) are the causative agents of several important genital and other mucosal cancers. The HPV16 E7 gene encodes a viral oncogene that is necessary for the continued growth of cancer cells, but its role in the normal, differentiation-dependent
Wei-Chih Lien et al.
Journal of cellular biochemistry, 119(6), 4729-4741 (2017-12-28)
Human osteosarcoma (bone cancer) is a highly malignant and the most prevalent bone tumor affecting children. Despite recent advances in the understanding of the molecular mechanism by which anticancer drugs kill osteosarcoma or block its growth, however, the mortality rate
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