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Cell Cycle

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https://www.readbyqxmd.com/read/30421640/accurate-delineation-of-cell-cycle-phase-transitions-in-living-cells-with-pip-fucci
#1
Gavin D Grant, Katarzyna M Kedziora, Juanita C Limas, Jeanette Gowen Cook, Jeremy E Purvis
Cell cycle phase transitions are tightly orchestrated to ensure efficient cell cycle progression and genome stability. Interrogating these transitions is important for understanding both normal and pathological cell proliferation. By quantifying the dynamics of the popular FUCCI reporters relative to the transitions into and out of S phase, we found that their dynamics are substantially and variably offset from true S phase boundaries. To enhance detection of phase transitions, we generated a new reporter whose oscillations are directly coupled to DNA replication and combined it with the FUCCI APC/C reporter to create "PIP-FUCCI"...
November 13, 2018: Cell Cycle
https://www.readbyqxmd.com/read/30395772/role-of-il-17ra-in-the-proliferative-priming-of-hepatocytes-in-liver-regeneration
#2
Danilo Piobbico, Daniela Bartoli, Stefania Pieroni, Antonella De Luca, Marilena Castelli, Luigina Romani, Giuseppe Servillo, Maria Agnese Della-Fazia
A tight link has been established between inflammation and cancer. Liver regeneration is a widely used model to study the correlation between inflammation and proliferation. IL-6 is essentially involved in liver regeneration and in cancer. Recently, IL-17A has been shown to regulate not only inflammation, but also cell proliferation. Here, we analyze the role played by IL-17A signaling in liver regeneration by comparing cell proliferation in Wild Type and IL-17RA-/- mice. Partial hepatectomy experiments performed in IL-17RA-/- mice showed a delay in expression of early-genes to prime the residual hepatocyte to proliferate, with subsequent delay in G1 /S-phase transition...
November 5, 2018: Cell Cycle
https://www.readbyqxmd.com/read/30394845/mir-130a-5p-prevents-angiotensin-ii-induced-podocyte-apoptosis-by-modulating-m-type-phospholipase-a2-receptor
#3
Dongwei Liu, Fengxun Liu, Xutong Wang, Yingjin Qiao, Shaokang Pan, Yang Yang, Yifang Hu, Yilin Zhang, Fei Tian, Zhangsuo Liu
OBJECTIVE: To reveal the role of miR-191 in apoptosis of renal tubular epithelial cells and in the involvement of renal ischemia-reperfusion injury. MATERIALS AND METHODS: Renal transplantation rat model was established. miR-191 and Cystathionine-β-synthase (CBS) were measured by qRT-PCR and Western blot. The regulation of miR-191 on CBS was detected by luciferase reporter assay. RESULTS: miR-191 expression in platelets and platelet microvesicles (P-MVs) of patients and model rats was significantly upregulated than that of health and normal rats...
November 5, 2018: Cell Cycle
https://www.readbyqxmd.com/read/30394832/rottlerin-inhibits-cell-growth-and-invasion-via-down-regulation-of-ezh2-in-prostate-cancer
#4
Nana Zheng, Lixia Wang, Yingying Hou, Xiuxia Zhou, Youhua He, Zhiwei Wang
Rottlerin as a natural agent, which is isolated from Mallotus philippinensis, has been identified to play a critical role in tumor inhibition. However, the molecular mechanism of rottlerin-mediated anti-tumor activity is still ambiguous. It has been reported that EZH2 exhibits oncogenic functions in a variety of human cancers. Therefore, inhibition of EZH2 could be a promising strategy for the treatment of human cancers. In this study, we aim to explore whether rottlerin could inhibit tumorigenesis via suppression of EZH2 in prostate cancer cells...
November 5, 2018: Cell Cycle
https://www.readbyqxmd.com/read/30394829/mir-191-secreted-by-platelet-derived-microvesicles-induced-apoptosis-of-renal-tubular-epithelial-cells-and-participated-in-renal-ischemia-reperfusion-injury-via-inhibiting-cbs
#5
Xiao-Qiang Wu, Xiang-Yong Tian, Zhi-Wei Wang, Xuan Wu, Jun-Peng Wang, Tian-Zhong Yan
OBJECTIVE: To reveal the role of miR-191 in apoptosis of renal tubular epithelial cells and in the involvement of renal ischemia-reperfusion injury. MATERIALS AND METHODS: Renal transplantation rat model was established. miR-191 and Cystathionine-β-synthase (CBS) were measured by qRT-PCR and Western blot. The regulation of miR-191 on CBS was detected by luciferase reporter assay. RESULTS: miR-191 expression in platelets and platelet microvesicles (P-MVs) of patients and model rats was significantly upregulated than that of health and normal rats...
November 5, 2018: Cell Cycle
https://www.readbyqxmd.com/read/30394813/mapt-tau-expression-is-a-biomarker-for-an-increased-rate-of-survival-in-pediatric-neuroblastoma
#6
Saif Zaman, Boris I Chobrutskiy, George Blanck
Although the impact of MAPT (Tau) expression has been well documented for neuronal cells in the context of tauopathies and neurodegenerative diseases, the impact and role of Tau expression in cancer, and specifically cancers of neuronal origin, is in its infancy. To determine the correlation between MAPT expression and survival in pediatric neuroblastoma, MAPT gene expression for samples from the TARGET pediatric neuroblastoma dataset was assessed. Initial analyses indicated that increased MAPT expression correlated with increased overall survival in neuroblastoma but not in ovarian cancer...
November 5, 2018: Cell Cycle
https://www.readbyqxmd.com/read/30394812/histone-modifications-and-the-dna-double-strand-break-response
#7
Hieu T Van, Margarida Almeida Santos
The timely and precise repair of DNA damage, or more specifically DNA double-strand breaks (DSBs) - the most deleterious DNA lesions, is crucial for maintaining genome integrity and cellular homeostasis. An appropriate cellular response to DNA DSBs requires the integration of various factors, including the post-translational modifications (PTMs) of chromatin and chromatin-associated proteins. Notably, the PTMs of histones have been shown to play a fundamental role in initiating and regulating cellular responses to DNA DSBs...
November 5, 2018: Cell Cycle
https://www.readbyqxmd.com/read/30382790/phf1-is-required-for-chromosome-alignment-and-asymmetric-division-during-mouse-meiotic-oocyte-maturation
#8
Yi Qu, Yang Wang, Jie Qiao
In recent years, the etiological study of oocyte maturation failure and other mechanisms of early embryonic development has gradually advanced. However, while some achievements have been made in this field, the intrinsic mechanisms underlying disordered oocyte maturation remain unclear. Polycomb group proteins (PcG) are a family of proteins that are involved in the epigenetic silencing of genes. Many members of this family are reportedly involved in mammalian oocyte maturation and early embryonic development...
November 1, 2018: Cell Cycle
https://www.readbyqxmd.com/read/30382773/survivin-regulates-chromosome-segregation-by-modulating-the-phosphorylation-of-aurora-b-during-porcine-oocyte-meiosis
#9
Li Chen, Tailang Yin, Zheng-Wen Nie, Tao Wang, Ying-Ying Gao, Shu-Yuan Yin, Li-Jun Huo, Xia Zhang, Jing Yang, Yi-Liang Miao
SURVIVIN is an essential chromosomal passenger complex (CPC) subunit and participates in cell division. In this study, we used porcine oocyte as a model to investigate the roles of Survivin during porcine oocyte maturation. Survivin was highly expressed in germinal vesicle (GV) and germinal vesicle breakdown (GVBD) stages oocytes, mainly localized in the GV at GV stage and on the chromosomes after GVBD. We have used RNA interference to specifically deplete Survivin in oocytes during in vitro maturation (IVM)...
November 1, 2018: Cell Cycle
https://www.readbyqxmd.com/read/30382763/up-regulation-of-microrna-497-inhibits-the-proliferation-migration-and-invasion-but-increases-the-apoptosis-of-multiple-myeloma-cells-through-the-mapk-erk-signaling-pathway-by-targeting-raf-1
#10
Cheng-Yu Ye, Cui-Ping Zheng, Wei-Wei Ying, Shan-Shan Weng
Multiple myeloma (MM) is a cancer that occurs in plasma cells, which fall under the category of white blood cells that are in charge of antibody production. According to previous studies, microRNA-497 (miR-497) functions as a tumor suppressor in several types of cancer, including gastric cancer and colorectal cancer. Therefore, the present study aims to investigate the effects of miR-497 on cellular function of human MM cells through the mitogen-activated protein kinase/extracellular signal-regulated kinase (MAPK/ERK) signaling pathway by targeting Raf-1...
November 1, 2018: Cell Cycle
https://www.readbyqxmd.com/read/30324848/msc-derived-exosomes-promote-proliferation-and-inhibit-apoptosis-of-chondrocytes-via-lncrna-klf3-as1-mir-206-git1-axis-in-osteoarthritis
#11
Yubao Liu, Lupan Lin, Rui Zou, Chuanyang Wen, Zhen Wang, Fuqing Lin
Background Exosomes secreted by human mesenchymal stem cells (hMSCs) have been shown to promote cartilage regeneration. This study aimed to explore whether exosomal lncRNA-KLF3-AS1 derived from hMSCs can promote chondrocyte proliferation via miR-206/GIT1 axis in osteoarthritis (OA). Methods hMSCs and MSC-derived exosomes (MSC-exo) were prepared for morphological observation and identification by transmission electron microscopy (TEM) and flow cytometry. IL-1β-induced OA chondrocytes and collagenase-induced mouse OA model were established for the further experiments...
October 16, 2018: Cell Cycle
https://www.readbyqxmd.com/read/30198378/regulation-of-cenp-f-localization-to-nuclear-pores-and-kinetochores
#12
Alessandro Berto, Valérie Doye
In metazoans, the assembly of kinetochores on centrometric chromatin and the dismantling of nuclear pore complexes are processes that have to be tightly coordinated to ensure the proper assembly of the mitotic spindle and a successful mitosis. It is therefore noteworthy that these two macromolecular assemblies share a subset of constituents. One of these multifaceted components is Cenp-F, a protein implicated in cancer and developmental pathologies. During the cell cycle, Cenp-F localizes in multiple cellular structures including the nuclear envelope in late G2/early prophase and kinetochores throughout mitosis...
September 9, 2018: Cell Cycle
https://www.readbyqxmd.com/read/29895227/yeast-chronological-aging-is-linked-to-cell-cycle-regulation
#13
Karamat Mohammad, Vladimir I Titorenko
No abstract text is available yet for this article.
July 5, 2018: Cell Cycle
https://www.readbyqxmd.com/read/29895198/long-non-coding-rna-gas5-sensitizes-renal-cell-carcinoma-to-sorafenib-via-mir-21-sox5-pathway
#14
Lei Liu, Xinlu Pang, Wenjin Shang, Hongchang Xie, Yonghua Feng, Guiwen Feng
Although the use of sorafenib appears to increase the survival rate of renal cell carcinoma (RCC) patients, there is also a proportion of patients who exhibit a poor primary response to sorafenib treatment. Therefore, it is critical to elucidate the mechanisms underlying sorafenib resistance and find representative biomarkers for sorafenib treatment in RCC patients. Herein, we identified that a long noncoding RNA GAS5 was downregulated in sorafenib nonresponsive RCCs. GAS5 overexpression conferred sorafenib sensitive to nonresponsive RCC cells, whereas knockdown of GAS5 promoted responsive RCC cells resistant to sorafenib treatment in vitro and in vivo...
June 12, 2018: Cell Cycle
https://www.readbyqxmd.com/read/29345181/corrigendum
#15
(no author information available yet)
No abstract text is available yet for this article.
January 18, 2018: Cell Cycle
https://www.readbyqxmd.com/read/30328366/exo1-overexpression-is-associated-with-poor-prognosis-of-hepatocellular-carcinoma-patients
#16
Yaoyao Dai, Zuxiong Tang, Zongguo Yang, Lan Zhang, Qing Deng, Xiaofeng Zhang, Yongchun Yu, Xing Liu, Junfeng Zhu
The roles of exonuclease 1 (EXO1) in hepatocellular carcinoma (HCC) tumorigenesis and progression remain unclear. This study aimed to assess the prognostic value and therapeutic potential of EXO1 in HCC. Exo1 gene copy numbers were obtained from three Oncomine microarray datasets (n = 447). EXO1 mRNA expression was validated by semi-quantitative PCR and QuantiGene® 2.0 assays. Cell growth curve and colony formation were performed to asses the cell proliferation. Clonogenic assay, flow cytometry, and immunofluorescence were adopted to acess the effects of EXO1 knockdown and radiation on cell survival, cell cycle distribution and DNA repair...
2018: Cell Cycle
https://www.readbyqxmd.com/read/30321077/knockdown-of-lncrna-kcnq1ot1-suppresses-the-adipogenic-and-osteogenic-differentiation-of-tendon-stem-cell-via-downregulating-mir-138-target-genes-ppar%C3%AE-and-runx2
#17
Yang Yu, Ying Chen, Xiaolei Zhang, Xiaolang Lu, Jianjun Hong, Xiaoshan Guo, Dongsheng Zhou
The study aimed to investigate the mechanism and biological roles of long noncoding RNAKCNQ1OT1 in adipogenic and osteogenic differentiation of tendon stem cell. In this study, tendon injury mice model was established to detect the expression of lncRNA KCNQ1OT1, miR-138, peroxisome proliferator-activated receptor gamma (PPARγ) and runt-related gene 2 (RUNX2) using quantitative real-time PCR (qRT-PCR) and western blot. Mechanical testing was carried out to assess tendon function. Adiponectin and Osterix were used to evaluate the adipogenic and osteogenic differentiation of tendon stem cells (TSCs)...
2018: Cell Cycle
https://www.readbyqxmd.com/read/30317923/p27-inhibits-cdk6-ccnd1-complex-formation-resulting-in-cell-cycle-arrest-and-inhibition-of-cell-proliferation
#18
Niannian Li, Jie Zeng, Fuze Sun, Xiaoling Tong, Gang Meng, Chunman Wu, Xin Ding, Lanlan Liu, Minjin Han, Cheng Lu, Fangyin Dai
p27 plays critical roles in cell proliferation, differentiation, and apoptosis, which have been well studied in mammals and Drosophila. However, the mechanisms underlying p27 regulation of the cell cycle have not been thoroughly researched. In this study, Genevestigator, Kaplan-Meier Plotter, and the Human Protein Atlas databases were used to analyze the expression of p27, cell division protein kinase 6 (CDK6), and cyclin D1 (CCND1), as well as its prognostic value in different tumor tissues and corresponding normal tissues...
2018: Cell Cycle
https://www.readbyqxmd.com/read/30311543/role-of-ahr-in-regulating-cancer-stem-cell-like-characteristics-in-choriocarcinoma
#19
Chenchun Wu, Shuran Yu, Qianxia Tan, Peng Guo, Huining Liu
Choriocarcinoma is sensitive to chemotherapy. However, drug resistance has become one of the major problems in recent years. Previous studies have shown that many tumors contained a small fraction of cells that exhibited enhanced tumor initiating potential and stem cell-like properties. It is hypothesized that cancer stem cells (CSCs) are organized in a cellular hierarchy. They also have the qualities of self-renewal, chemoresistance, and so on. The identification of CSCs in choriocarcinoma and the mechanism contributing to their qualities remain largely unknown...
2018: Cell Cycle
https://www.readbyqxmd.com/read/30304981/physical-confinement-alters-sarcoma-cell-cycle-progression-and-division
#20
Rebecca A Moriarty, Kimberly M Stroka
Tumor cells experience physical confinement on one or multiple axes, both in the primary tumor and at multiple stages during metastasis. Recent work has shown that confinement in a 3D spheroid alters nucleus geometry and delays cell division, and that vertical confinement impairs mitotic spindle rounding, resulting in abnormal division events. Meanwhile, the effects of bi-axial confinement on cell cycle progression has received little attention. Given the critical role of nuclear shape and mechanics in cell division, we hypothesized that bi-axial physical confinement of the cell body and nucleus would alter cell cycle progression...
2018: Cell Cycle
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