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https://www.readbyqxmd.com/read/28724259/herbal-pre-conditioning-induces-proliferation-and-delays-senescence-in-wharton-s-jelly-mesenchymal-stem-cells
#1
Avinash Sanap, Bhawna Chandravanshi, Tejas Shah, Girish Tillu, Anand Dhanushkodi, Ramesh Bhonde, Kalpana Joshi
BACKGROUND: Mesenchymal Stem Cells (MSCs) are multipotent stem cells which are being explored for various clinical applications. Isolation and in-vitro expansion of MSCs remain important in achieving desired cell number for the therapy. However, in-vitro proliferation of MSCs is often associated with senescence and early onset of apoptosis which limits its therapeutic ability and long term clinical use. Tinospora cordifolia and Withania somnifera are used widely in Ayurveda: the traditional Indian system of medicine and are reported to have rejuvenating and anti-aging potential...
July 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28723630/functional-role-of-setd2-bap1-parp-3-and-pbrm1-candidate-genes-on-the-regulation-of-htert-gene-expression
#2
Hannah Linne, Hemad Yasaei, Alison Marriott, Amanda Harvey, Kefah Mokbel, Robert Newbold, Terry Roberts
Narrowing the search for the critical hTERT repressor sequence(s) has identified three regions on chromosome 3p (3p12-p21.1, 3p21.2 and 3p21.3-p22). However, the precise location and identity of the sequence(s) responsible for hTERT transcriptional repression remains elusive. In order to identify critical hTERT repressor sequences located within human chromosome 3p12-p22, we investigated hTERT transcriptional activity within 21NT microcell hybrid clones containing chromosome 3 fragments. Mapping of chromosome 3 structure in a single hTERT-repressed 21NT-#3fragment hybrid clone, revealed a 490kb region of deletion localised to 3p21...
June 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/28722352/serpine-1-induces-alveolar-type-ii-cell-senescence-through-activating-p53-p21-rb-pathway-in-fibrotic-lung-disease
#3
Chunsun Jiang, Gang Liu, Tracy Luckhardt, Veena Antony, Yong Zhou, A Brent Carter, Victor J Thannickal, Rui-Ming Liu
Senescence of alveolar type 2 (ATII) cells, progenitors of the alveolar epithelium, is implicated in the pathogeneses of idiopathic pulmonary fibrosis (IPF), an aging-related progressive fatal lung disorder with unknown etiology. The mechanism underlying ATII cell senescence in fibrotic lung diseases, however, remains poorly understood. In this study, we report that ATII cells in IPF lungs express higher levels of serpine 1, also known as plasminogen activator inhibitor 1 (PAI-1), and cell senescence markers p21 and p16, compared to ATII cells in control lungs...
July 19, 2017: Aging Cell
https://www.readbyqxmd.com/read/28721450/smad3-and-bmal1-regulate-p21-and-s100a4-expression-in-myocardial-stromal-fibroblasts-via-tnf-%C3%AE
#4
Fuyuki Sato, Akira Kohsaka, Kana Takahashi, Saki Otao, Yusuke Kitada, Yoshiyuki Iwasaki, Yasuteru Muragaki
Bmal1, a clock gene, is associated with depression, hypertrophy, metabolic syndrome and diabetes. Smad3, which is involved in the TGF-β signaling pathway, plays an important role in the regulation of tumor progression, fibrosis, obesity and diabetes. Our previous report showed that Smad3 has circadian expression in mouse livers. In the current study, we focused on the heart, especially on the myocardial stromal fibroblasts because the roles of Bmal1 and Smad3 in this tissue are poorly understood. Bmal1 and Smad3 have circadian expression in mouse hearts, and their circadian expression patterns were similar...
July 18, 2017: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/28721075/lincrna-p21-inhibits-invasion-and-metastasis-of-hepatocellular-carcinoma-through-mir-9-e-cadherin-cascade-signaling-pathway-molecular-mechanism
#5
Gangqiang Ding, Zhen Peng, Jia Shang, Yi Kang, Huibin Ning, Chongshan Mao
In the previous study, it was found that long intergenic noncoding RNA-p21 (lincRNA-p21) was downregulated in hepatocellular carcinoma (HCC) and lincRNA-p21 overexpression inhibited tumor invasion through inducing epithelial-mesenchymal transition. However, the underlying mechanism was not fully elaborated. In this study, lincRNA-p21 expression was measured in 12 paired HCC and nontumor adjacent normal tissues by quantitative real-time polymerase chain reaction. The effects of lincRNA-p21 on HCC cells were studied using lentivirus expressing lincRNA-p21 vector in vitro...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28721074/targeted-regulation-of-mir-98-on-e2f1-increases-chemosensitivity-of-leukemia-cells-k562-a02
#6
Yingdan Huang, Xiuli Hong, Jiasheng Hu, Quanyi Lu
BACKGROUND: miRNA is a microRNA that negatively regulates protein expression at post-transcriptional or translational level. It is widely involved in the pathogenesis of tumors. miR-98 belongs to the let-7 family, and its overexpression can increase the sensitivity to drugs in solid cancer cells. However, the function of miR-98 in leukemia is still unclear. In this study, the effect of miR-98 on drug resistance and proliferation of leukemia cells were investigated. METHODS: Real-time quantitative polymerase chain reaction analyzed the expression difference between miR-98 and E2F1 in leukemia cell lines, K562 and K562/A02...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28720759/depleted-tumor-suppressor-mir-107-in-plasma-relates-to-tumor-progression-and-is-a-novel-therapeutic-target-in-pancreatic-cancer
#7
Taisuke Imamura, Shuhei Komatsu, Daisuke Ichikawa, Mahito Miyamae, Wataru Okajima, Takuma Ohashi, Jun Kiuchi, Keiji Nishibeppu, Hirotaka Konishi, Atsushi Shiozaki, Ryo Morimura, Hisashi Ikoma, Toshiya Ochiai, Kazuma Okamoto, Hiroki Taniguchi, Eigo Otsuji
This study explored decreased tumor suppressor microRNA (miRNA) plasma levels in pancreatic cancer (PCa) patients to clarify their potential as novel biomarkers and therapeutic targets. We used the microRNA array-based approach to select candidates by comparing plasma levels between PCa patients and healthy volunteers. Six down-regulated miRNAs (miR-107, miR-126, miR-451, miR-145, miR-491-5p, and miR-146b-5p) were selected. Small- and large-scale analyses using samples from 100 PCa patients and 80 healthy volunteers revealed that miR-107 was the most down-regulated miRNA in PCa patients compared with healthy volunteers (P < 0...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28719347/regulatory-effects-of-the-novel-synthesized-indole-3-carbaldehyde-on-expression-of-cell-cycle-genes-a-study-on-cyclin-d-and-p21-expression-by-acute-promylocytic-leukemia-cell-line-nb4
#8
M N Karimabad, M Mahmoodi, A Jafarzadeh, A Darekordi, M R Hajizadeh, H Khorramdelazad, A R Sayadi, S Khanamani Falahati-Pour, G Hassanshahi
A large variety of heterocycles are known to date and among these, indole and pyran rings are of particular interest. The present investigation was aimed to investigate the effects of novel Indole-3-carbaldehyde derivative (NI-3-CD) analogue on growth inhibition of cells and its regulatory effects on expression of cell cycle genes in acute promylocytic leukemia (APL) cell line. NB4 cells were cultured in presence of RPMI1640 medium contained various concentrations of NI-3-CD and basal compound of indole (I3C) (15...
May 20, 2017: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/28718806/the-inhibitory-activity-of-luzonicosides-from-the-starfish-echinaster-luzonicus-against-human-melanoma-cells
#9
Olesya S Malyarenko, Sergey A Dyshlovoy, Alla A Kicha, Natalia V Ivanchina, Timofey V Malyarenko, Bokemeyer Carsten, von Amsberg Gunhild, Valentin A Stonik, Svetlana P Ermakova
Malignant melanoma is the most dangerous form of skin cancer, with a rapidly increasing incidence rate. Despite recent advances in melanoma research following the approval of several novel targeted and immuno-therapies, the majority of oncological patients will ultimately perish from the disease. Thus, new effective drugs are still required. Starfish steroid glycosides possess different biological activities, including antitumor activity. The current study focused on the determination of the in vitro inhibitory activity and the mechanism of action of cyclic steroid glycosides isolated from the starfish Echinaster luzonicus-luzonicoside A (LuzA) and luzonicoside D (LuzD)-in human melanoma RPMI-7951 and SK-Mel-28 cell lines...
July 18, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28718667/hydroxytyrosol-induces-apoptosis-and-cell-cycle-arrest-and-suppresses-multiple-oncogenic-signaling-pathways-in-prostate-cancer-cells
#10
Haseeb Zubair, Arun Bhardwaj, Aamir Ahmad, Sanjeev Kumar Srivastava, Mohammad Aslam Khan, Girijesh Kumar Patel, Seema Singh, Ajay Partap Singh
SCOPE: Hydroxytyrosol (HT), a polyphenol from olives, is a potential anticancer agent. This study was designed to evaluate the anticancer activity of HT against prostate cancer cells, and the mechanism thereof. METHODS AND RESULTS: Treatment of LNCaP and C4-2 prostate cancer cells with HT resulted in a dose-dependent inhibition of proliferation. This was in contrast to HT's ineffectiveness against normal prostate epithelial cells RWPE1 and PWLE2, suggesting cancer-cell-specific effect...
July 18, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28718634/porous-uranyl-borophosphates-with-unique-three-dimensional-open-framework-structures
#11
Yucheng Hao, Gabriel L Murphy, Dirk Bosbach, Giuseppe Modolo, Thomas E Albrecht-Schmitt, Evgeny V Alekseev
Two novel alkali-metal uranyl borophosphates have been prepared and characterized for the first time, namely, K5(UO2)2[B2P3O12(OH)]2(OH)(H2O)2 and K2(UO2)12[B(H2PO4)4](PO4)8(OH)(H2O)6 denoted as KUPB1 and KUPB2, respectively. KUPB1 was obtained hydrothermally at 220 °C and crystallizes in a monoclinic structure in the chiral space group P21. The unit cell parameters of KUPB1 are a = 6.7623(2) Å, b = 19.5584(7) Å, c = 11.0110(4) Å, α = γ = 90°, β = 95.579(3)°, and V = 1449.42(8) Å(3). It features a unique three-dimensional (3D) open-framework structure, composed of two corner-sharing linked one-dimensional (1D) anionic borophosphates (BP), [B2P3O13](5-), along the a axis and uranyl phosphate (UP), [(UO2)(PO4)3](7-), chains along the c axis, further bridged by PO4 tetrahedra...
July 18, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28718371/changes-in-the-expression-of-genes-involved-in-cell-cycle-regulation-and-the-relative-telomere-length-in-the-process-of-canceration-induced-by-omethoate
#12
Xiaoran Duan, Yongli Yang, Sihua Wang, Xiaolei Feng, Tuanwei Wang, Pengpeng Wang, Suxiang Liu, Lei Li, Wu Yao, Liuxin Cui, Wei Wang
Organophosphorous pesticides (OPs), with high efficiency, broad-spectrum and low residue, are widely used in China. Omethoate is a broad category of organophosphorous pesticides and is more domestically utilized which has chronic toxic effect on human health caused by long-term, low-dose exposure to Ops, recently its potential genotoxicity has attracted wide attention which can cause chromosomal DNA damage. Thus, the aim of this study is screen susceptible biomarkers and explore the mechanism of canceration induced by omethoate...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28717243/the-long-non-coding-rna-loc441204-enhances-cell-growth-in-human-glioma
#13
Tzu-Kang Lin, Chang-Nen Chang, Cheng-Shian Tsai, Yin-Cheng Huang, Yu-Jen Lu, Wei-Jan Chen, Yang-Hsiang Lin, I-Hsiao Chung, Kwang-Huei Lin
Glioma is the most common and aggressive type of brain tumor. While long non-coding RNAs (lncRNAs) are clearly more abundant in human brain than protein-coding genes, the specific roles of lncRNAs and mechanisms underlying their dysregulation in glioma remain unclear. Here, we focused on lncRNAs that are differentially expressed in brain tumor and their potential biological functions. LOC441204, a novel non-coding RNA gene displaying high expression in clinical specimens of brain tumor and significant upregulation in glioma cell lines in microarray analyses, was selected for further study...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28717191/mln4924-pevonedistat-a-protein-neddylation-inhibitor-suppresses-proliferation-and-migration-of-human-clear-cell-renal-cell-carcinoma
#14
Shuai Tong, Yang Si, Hefen Yu, Lingqiang Zhang, Ping Xie, Wenguo Jiang
Neddylation is a post-translational protein modification associated with cancer development. MLN4924 is a neddylation inhibitor currently under investigation in multiple phase I studies on various malignancies, and its clincal name is Pevonedistat. It has been documented that MLN4924 blocks Cullins neddylation and inactivates CRLs and, in turn, triggers cell-cycle arrest, apoptosis, senescence and autophagy in many cancer cells. In this study, we investigated the anti-tumor effect of MLN4924 in human clear cell renal carcinoma (ccRCC)...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28716710/microrna-143-acts-as-a-suppressor-of-hemangioma-growth-by-targeting-bcl-2
#15
Chongqing Huang, JingYong Huang, Pengyan Ma, Guanfeng Yu
Infantile hemangioma is the most common vascular tumor affecting infants, which is associated with clonal expansion of endothelial cells. The aim of this study is to determine the role of microRNA (miR)-143 in the growth and survival of hemangioma-derived endothelial cells (HemECs). We examined the expression of miR-143 in patients with proliferating-phase (n=10) and involuting-phase (n=8) hemangiomas. The effects of ectopic expression of miR-143 on the viability, proliferation, cell cycle distribution, and apoptosis of HemECs were explored...
July 14, 2017: Gene
https://www.readbyqxmd.com/read/28716547/cellular-senescence-regulated-by-swi-snf-complex-subunits-through-p53-p21-and-p16-prb-pathway
#16
Ling He, Ying Chen, Jianguo Feng, Weichao Sun, Shun Li, Mengting Ou, Liling Tang
SWI/SNF complex is an evolutionarily well-conserved chromatin-remodeling complex, which is implicated in the nucleosomes removing or sliding, impacting on the DNA repair, replication and genes expression regulation. The SWI/SNF complex consists up to 12 protein subunits. The catalytic subunits are BRG1 or BRM, which are exclusive ATPase subunits. BRG1 has been reported to play an important role in cellular senescence. However, The function of non-catalytic subunits involved in cellular senescence is rarely investigated...
July 14, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28714320/anticancer-effect-of-polyphyllin-%C3%AE-in-colorectal-cancer-cells-through-ros-dependent-autophagy-and-g2-m-arrest-mechanisms
#17
Si Yu, Lijiao Wang, Zhixing Cao, Daoyin Gong, Qianyi Liang, Hanting Chen, Huizhu Fu, Wenwen Wang, Xue Tang, Zihao Xie, Yang He, Cheng Peng, Yuzhi Li
Polyphyllin Ι is a steroidal saponin isolated from the rhizoma of Paris polyphylla. In the present study, we aimed to investigate the anticancer effects of polyphyllin Ι in colorectal cancer and to elucidate the potential underlying molecular mechanisms. Using, CCK8 assay, flow cytometry, laser confocal microscope analysis and western blot, the anticancer effects of the polyphyllin Ι were analysed in colorectal cells. Our results indicate that polyphyllin Ι significantly decreased cell viability of HCT 116 cells and induced autophagy...
July 16, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28713980/mirna%C3%A2-1284-inhibits-cell-growth-and-induces-apoptosis-of-lung-cancer-cells
#18
Jie Li, Hairong Jin, Hua Yu, Bin Wang, Jian Tang
Lung cancer is the most common cancer worldwide, and morbidity and mortality associated with lung cancer has been increasing annually in recent decades. MicroRNAs (miRNAs), which are short non‑coding RNA sequences that are involved in the regulation of gene expression, have been previously demonstrated to be key regulators in cancer. The present study aimed to clarify the role of miRNA (miR)‑1284 in lung cancer. A549 lung carcinoma cells were transfected with miR‑1284 mimic or miR‑1284 inhibitor using Lipofectamine 2000...
July 12, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28713967/involvement-of-notch2-in-all%C3%A2-trans-retinoic-acid%C3%A2-induced-inhibition-of-mouse-embryonic-palate-mesenchymal-cell-proliferation
#19
Yadong Zhang, Shiyi Dong, Jianning Wang, Miao Wang, Mu Chen, Hongzhang Huang
Cleft palate is among the most common congenital disorders, and can be induced by exposure to all‑trans retinoic acid (atRA) during mice and human embryogenesis. However, the mechanism underlying the implication of atRA in the development of cleft palate has yet to be elucidated. In the present study, atRA administered by gavage resulted in formation of a cleft palate in 99% of treated C57BL/6 mice. Notch2 was revealed to be upregulated in mouse embryonic palate mesenchymal (MEPM) cells in the atRA‑treated group compared with untreated control mice between embryonic day (E)12...
July 6, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28713892/trichostatin%C3%A2-a-induces-bladder-cancer-cell-death-via-intrinsic-apoptosis-at-the-early%C3%A2-phase-and-sp1%C3%A2-survivin-downregulation-at-the-late%C3%A2-phase-of-treatment
#20
Shou-Chieh Wang, Shou-Tsung Wang, Hung-Te Liu, Xiang-Yu Wang, She-Ching Wu, Lei-Chin Chen, Yi-Wen Liu
Histone deacetylase (HDAC) inhibitors have been widely shown to result in cancer cell death. The present study investigated the mechanisms underlying the antitumor effects of the phytochemical trichostatin A (TSA), a classic pan-HDAC inhibitor, in 5,637 urinary bladder cancer cells. It was found that TSA caused cell cycle arrest at the G2/M and G1 phase accompanied by reduced expression of cyclin D1 and upregulated induction of p21. In addition, TSA induced morphological changes, reduced cell viability and apoptotic cell death in 5,637 cells through caspase-3 activation followed by PARP cleavage...
July 6, 2017: Oncology Reports
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