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https://www.readbyqxmd.com/read/29620219/anthricin%C3%A2-induced-caspase%C3%A2-dependent-apoptosis-through-igf1r-pi3k-akt-pathway-inhibition-in-a549-human-non%C3%A2-small-lung-cancer-cells
#1
Bo-Ram Park, Seul Ah Lee, Sung Min Moon, Chun Sung Kim
Anthricin (deoxypodophyllotoxin) is a major lignan in Anthriscus sylvestris and possesses many bioactivities such as antiproliferative, antitumor, anti‑platelet aggregation, antiviral and anti‑inflammatory actions. However, the anticancer effects of anthricin on A549 human non‑small cell lung cancer cells and potential molecular mechanisms remain unknown. Therefore, we investigated the anticancer effect of anthricin and the underlying mechanism in A549 cells. Anthricin (10‑200 nM) inhibited the viability of A549 cells in a dose‑ and time‑dependent manner...
March 27, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29606300/homozygous-mutations-in-wee2-cause-fertilization-failure-and-female-infertility
#2
Qing Sang, Bin Li, Yanping Kuang, Xueqian Wang, Zhihua Zhang, Biaobang Chen, Ling Wu, Qifeng Lyu, Yonglun Fu, Zheng Yan, Xiaoyan Mao, Yao Xu, Jian Mu, Qiaoli Li, Li Jin, Lin He, Lei Wang
Fertilization is a fundamental process of development and is a prerequisite for successful human reproduction. In mice, although several receptor proteins have been shown to play important roles in the process of fertilization, only three genes have been shown to cause fertilization failure and infertility when deleted in vivo. In clinical practice, some infertility case subjects suffer from recurrent failure of in vitro fertilization and intracytoplasmic sperm injection attempts due to fertilization failure, but the genetic basis of fertilization failure in humans remains largely unknown...
March 19, 2018: American Journal of Human Genetics
https://www.readbyqxmd.com/read/29602129/sanyang-xuedai-enhances-the-radiosensitivity-of-human-non-small-cell-lung-cancer-cells-via-increasing-inos-no-production
#3
Li Wang, Yaoxiong Xia, Ting Chen, Yueqin Zeng, Lan Li, Yu Hou, Wenhui Li, Zhijie Liu
OBJECTIVE: In this research, we aimed at finding out how San Yang Xue Dai (SYKT) promotes the radiosensitivity of non-small cell lung cancer (NSCLC) cell line NCI-H460. METHODS: Survival rate of NSCLC cells (A549, NCI-H460, NCI-H1650 and NCI-H1975) after the SYKT treatment or irradiation (IR) was calculated by the MTT assay. The radiosensitization of SYKT (0.5 g/mL and 1.0 g/mL) on cell line NCI-H460 and the radioresistant cell line NCI-H460R was studied by MTT assay and clone formation assay...
March 27, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29590650/mir-27a-promotes-hemin-induced-erythroid-differentiation-of-k562-cells-by-targeting-cdc25b
#4
Dongsheng Wang, Si Si, Qiang Wang, Guangcheng Luo, Qin Du, Qi Liang, Xiaolan Guo, Guoyuan Zhang, Jiafu Feng, Zhengwei Leng
BACKGROUND/AIMS: MicroRNAs (miRNAs) play a crucial role in erythropoiesis. MiR-23a∼27a∼24-2 clusters have been proven to take part in erythropoiesis via some proteins. CDC25B (cell division control Cdc2 phosphostase B) is also the target of mir-27a; whether it regulates erythropoiesis and its mechanism are unknown. METHODS: To evaluate the potential role of miR-27a during erythroid differentiation, we performed miR-27a gain- and loss-of-function experiments on hemin-induced K562 cells...
March 22, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29590128/osthole-inhibits-gastric-cancer-cell-proliferation-through-regulation-of-pi3k-akt
#5
Xiaojun Xu, Xiaoyuan Liu, Yan Zhang
Osthole is an active compound isolated from Chinese herb Cnidium monnieri (L.) Cusson, and had been reported to possess antitumor effect. However, the effect of osthole on the gastric cancer cells has not been investigated. In this study, the effects of osthole on the proliferation of human gastric cancer cells were tested. The data showed that osthole treatment significantly inhibited the proliferation of gastric cancer cells and resulted in the cell cycle arrest at G2/M phase in a dose-dependent manner. Western-blot study showed that the expression of cyclin B1 and cdc2 was markedly reduced by osthole...
2018: PloS One
https://www.readbyqxmd.com/read/29579711/osthole-inhibits-the-pi3k-akt-signaling-pathway-via-activation-of-pten-and-induces-cell-cycle-arrest-and-apoptosis-in-esophageal-squamous-cell-carcinoma
#6
Xinbing Zhu, Zhengzheng Li, Tongtong Li, Fei Long, Yuesheng Lv, Lei Liu, Xuefeng Liu, Qimin Zhan
Esophageal squamous cell carcinoma (ESCC) is one of the most common lethal tumors and is known to be lack of effective therapy. Thus, novel therapeutic strategies are greatly needed for treatment of ESCC. Osthole, a natural active extract, has been documented to have anti-tumor activity. However, the effect of osthole on ESCC cells has not been elucidated. In this study, we demonstrated that osthole could inhibit the ESCC cell proliferation in dose- and time-dependent manner. Osthole treatment also induced G2/M phase arrest and apoptosis of ESCC cells...
March 23, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29576711/-cordyceps-militaris-fraction-induces-apoptosis-and-g2-m-arrest-via-c-jun-n-terminal-kinase-signaling-pathway-in-oral-squamous-carcinoma-kb-cells
#7
Wangshi Xie, Zhang Zhang, Liyan Song, Chunhua Huang, Zhongyi Guo, Xianjing Hu, Sixue Bi, Rongmin Yu
Background: Cordyceps militaris fraction (CMF) has been shown to possess in vitro antitumor activity against human chronic myeloid leukemia K562 cells in our previous research. Materials and Methods: The in vitro inhibitory activities of CMF on the growth of KB cells were evaluated by viability assay. The apoptotic and cell cycle influences of CMF were detected by 4',6-diamidino-2-phenylindole staining and flow cytometry assay. The expression of different apoptosis-associated proteins and cell cycle regulatory proteins was examined by Western blot assay...
January 2018: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29575149/exercise-decreases-clk2-in-the-liver-of-obese-mice-and-prevents-hepatic-fat-accumulation
#8
Vitor R Muñoz, Rafael C Gaspar, Gabriel K Kuga, Susana C B R Nakandakari, Igor L Baptista, Rania A Mekary, Adelino S R da Silva, Leandro P de Moura, Eduardo R Ropelle, Dennys E Cintra, José R Pauli
The accumulation of fatty acids in the liver associated with obesity condition is also known as nonalcoholic fatty liver disease (NAFLD). The impaired fat oxidation in obesity condition leads to increased hepatic fat accumulation and increased metabolic syndrome risk. On the other hand, physical exercise has been demonstrated as a potent strategy in the prevention of NAFLD. Also, these beneficial effects of exercise occur through different mechanisms. Recently, the Cdc2-like kinase (CLK2) protein was associated with the suppression of fatty acid oxidation and hepatic ketogenesis...
March 25, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29570858/metabolic-control-of-cell-fate-bifurcations-in-a-hematopoietic-progenitor-population
#9
Radomir Kratchmarov, Sara Viragova, Min Jung Kim, Nyanza J Rothman, Kang Liu, Boris Reizis, Steven L Reiner
Growth signals drive hematopoietic progenitor cells to proliferate and branch into divergent cell fates, but how unequal outcomes arise from a common progenitor is not fully understood. We used steady-state analysis of in vivo hematopoiesis and Fms-related tyrosine kinase 3 ligand (Flt3L)-induced in vitro differentiation of dendritic cells (DCs) to determine how growth signals regulate lineage bias. We found that Flt3L signaling induced anabolic activation and proliferation of DC progenitors, which was associated with DC differentiation...
March 23, 2018: Immunology and Cell Biology
https://www.readbyqxmd.com/read/29565730/acetyl-macrocalin-b-an-ent-kaurane-diterpenoid-initiates-apoptosis-through-the-ros-p38-caspase-9-dependent-pathway-and-induces-g2-m-phase-arrest-via-the-chk1-2-cdc25c-cdc2-cyclin-b-axis-in-non-small-cell-lung-cancer
#10
Jing-Nan Wang, Zhi-Rong Zhang, Yun Che, Zu-Yang Yuan, Zhi-Liang Lu, Yuan Li, Ning Li, Jun Wan, Han-Dong Sun, Nan Sun, Pema-Tenzin Puno, Jie He
Non-small cell lung cancer (NSCLC) is the leading cause of cancer-related death worldwide, and novel effective drugs against NSCLC are urgently needed. Isodon species are rich in ent-kaurane diterpenoids that have been reported to have antitumor bioactivity. Acetyl-macrocalin B (A-macB) is a novel ent-kaurane diterpenoid isolated from Isodon silvatica, and its antitumor efficacy against NSCLC and the underlying mechanisms were scrutinized in depth. The viability of cells treated with A-macB was detected by CCK-8 and colony formation assays...
March 22, 2018: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/29563987/anti-proliferative-effect-of-isorhamnetin-on-hela-cells-through-inducing-g2-m-cell-cycle-arrest
#11
Juan Wei, Hailan Su, Yang Bi, Jixin Li, Lidan Feng, Wenjun Sheng
As a major cancer type in females, cervical cancer has been explored in depth by researchers. HeLa is a cervical cancer cell line. Isorhamnetin is an O-methylated flavonol that is primarily extracted from sea buckthorn. In the present study, the anti-proliferative effect of isorhamnetin on HeLa cells was evaluated using a Trypan blue dye exclusion assay. Isorhamnetin inhibited the cell proliferation in a time- and dose-dependent manner. Flow cytometric analysis of the cell cycle distribution revealed that isorhamnetin inhibited the cell cycle progression of HeLa by causing G2/M phase arrest and decreasing the proportion of cells in G1 phase...
April 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29555549/neonatal-porcine-blood-derived-dendritic-cells-subsets-show-activation-after-tlr2-or-tlr9-stimulation
#12
Sandra Vreman, Gael Auray, Huub F J Savelkoul, Annemarie Rebel, Artur Summerfield, Norbert Stockhofe-Zurwieden
The present study investigated the innate immune response in vitro to determine porcine neonate responses with Toll-like receptor (TLR)2 ligand (Pam3Cys) or TLR9 ligand (CpG) and compare these with adults. We identified the same phenotypically defined dendritic cells (DC) subsets and DC proportions in porcine neonate and adult blood by flow cytometry, which were plasmacytoid DCs (pDCs): CD14- CD4+ CD172a+ CADM1- ) and conventional DCs (cDCs), the latter being further divided into a cDC1 (CD14- CD4- CD172alow CADM1+ ) and a cDC2 (CD14- CD4- CD172a+ CADM1+ ) subset...
March 16, 2018: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/29531815/flubendazole-inhibits-glioma-proliferation-by-g2-m-cell-cycle-arrest-and-pro-apoptosis
#13
Xumin Zhou, Jumei Liu, Jinming Zhang, Yong Wei, Hua Li
Flubendazole, FDA-approved anthelmintic, has been widely used in treating testinal parasites. In the recent years, Flubendazole has been reported to exert anticancer activities. On the other hand, little was known about the effects of Flubendazole on gliomas. Here we demonstrated a novel effect of flubendazole on glioma cells. We found that Flubendazole inhibited cell proliferation and promoted cell apoptosis of glioma cell lines in vitro, and suppressed tumor growth in xenograft models by intraperitoneal injection...
December 2018: Cell Death Discovery
https://www.readbyqxmd.com/read/29519997/overexpression-of-nitrogen-permease-regulator-like-2-nprl2-enhances-sensitivity-to-irinotecan-cpt-11-in-colon-cancer-cells-by-activating-the-dna-damage-checkpoint-pathway
#14
Shasha Liu, Bingrong Liu
BACKGROUND Colorectal cancer (CRC) is the third most common cancer worldwide, making it is a serious threat to human health. It is imperative to develop new therapeutics to improve the CRC treatment efficiency. The aim of this study was to investigate the role of NPRL2 in improving sensitivity to CPT-11 in colon cancer cells. MATERIAL AND METHODS NPRL2 overexpression was established by transfecting the recombinant lentivirus-encoding NPRL2 gene into HCT116 colon cancer cells. Cell proliferation was identified using Cell Counting Kit-8 (CCK8) assay...
March 9, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29514067/visceral-adipose-tissue-immune-homeostasis-is-regulated-by-the-crosstalk-between-adipocytes-and-dendritic-cell-subsets
#15
Claire E Macdougall, Elizabeth G Wood, Jakob Loschko, Valeria Scagliotti, Féaron C Cassidy, Mark E Robinson, Niklas Feldhahn, Leandro Castellano, Mathieu-Benoit Voisin, Federica Marelli-Berg, Carles Gaston-Massuet, Marika Charalambous, M Paula Longhi
Visceral adipose tissue (VAT) has multiple roles in orchestrating whole-body energy homeostasis. In addition, VAT is now considered an immune site harboring an array of innate and adaptive immune cells with a direct role in immune surveillance and host defense. We report that conventional dendritic cells (cDCs) in VAT acquire a tolerogenic phenotype through upregulation of pathways involved in adipocyte differentiation. While activation of the Wnt/β-catenin pathway in cDC1 DCs induces IL-10 production, upregulation of the PPARγ pathway in cDC2 DCs directly suppresses their activation...
March 6, 2018: Cell Metabolism
https://www.readbyqxmd.com/read/29512739/-6-gingerol-enhances-the-radiosensitivity-of-gastric-cancer-via-g2-m-phase-arrest-and-apoptosis-induction
#16
Youjun Luo, Xue Chen, Lumeng Luo, Qi Zhang, Caixia Gao, Xibing Zhuang, Sujuan Yuan, Tiankui Qiao
Ionizing radiation (IR) is the main modality for locoregional control of unresectable gastric cancer (GC). [6]-Gingerol is an active major phenolic compound isolated from ginger (Zingiber officinale Roscoe), and it has been demonstrated to possess antitumor activity in previous studies. In the present study, we aimed to evaluate the potential activity of [6]-gingerol as a radiosensitizer and to further explore the underlying mechanism. A CCK-8 assay revealed that [6]-gingerol inhibited the cell viability of HGC-27 cells in a dose-dependent manner (P<0...
March 5, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29512690/daidzein-exerts-anticancer-activity-towards-skov3-human-ovarian-cancer-cells-by-inducing-apoptosis-and-cell-cycle-arrest-and-inhibiting-the-raf-mek-erk-cascade
#17
Fu Hua, Chang-Hua Li, Xiao-Gang Chen, Xiao-Ping Liu
Ovarian cancer is the main cause of gynecological cancer‑associated mortality around the world. Despite initial responses to chemotherapy, frequent relapse occurs. Daidzein is an important flavonoid and has been shown to exhibit a diversity of pharmacological properties, including antimicrobial and anticancer activities. However, information on the anticancer activity of daidzein against ovarian cancer remains limited. Therefore, the present study evaluated the anticancer activity of daidzein against a panel of human ovarian cancer cell lines and one normal ovarian cell line (Moody)...
March 5, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29512029/the-protective-role-of-selenium-in-afb-1-induced-tissue-damage-and-cell-cycle-arrest-in-chicken-s-bursa-of-fabricius
#18
Ping Hu, Zhicai Zuo, Fengyuan Wang, Xi Peng, Ke Guan, Hang Li, Jing Fang, Hengmin Cui, Gang Su, Ping Ouyang, Yi Zhou
Aflatoxin B1 (AFB1 ) is a naturally occurring secondary metabolites of Aspergillus flavus and Aspergillus parasiticus, and is the most toxic form of aflatoxins. Selenium (Se) with antioxidant and detoxification functions is one of the essential trace elements for human beings and animals. This study aims to evaluate the protective effects of Se on AFB1 -induced tissue damage and cell cycle arrest in bursa of Fabricius (BF) of chickens. The results showed that a dietary supplement of 0.4 mg·kg-1 Se alleviated the histological lesions induced by AFB1 , as demonstrated by decreasing vacuoles and nuclear debris, and relieving oxidative stress...
March 6, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/29468753/f1012-2-inhibits-the-growth-of-triple-negative-breast-cancer-through-induction-of-cell-cycle-arrest-apoptosis-and-autophagy
#19
Shasha Tian, Yan Chen, Bo Yang, Chenghua Lou, Rui Zhu, Yaping Zhao, Huajun Zhao
Sesquiterpene lactones (SLs) are plant-derived constituents that have been proved to have potential antitumour activity. However, the intracellular molecular targets of SLs and the underlying molecular mechanisms have not been well elucidated. Here, we report that F1012-2, a novel SL active fraction, isolated from Eupatorium lindleyanum DC., can significantly inhibit the growth of triple-negative breast cancer (TNBC) cells (MDA-MB-231 and MDA-MB-468) but has no obvious inhibitory effect on the growth of human mammary epithelial cells (MCF-10A)...
February 22, 2018: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/29467227/phosphorylation-of-cdc25c-by-amp-activated-protein-kinase-mediates-a-metabolic-checkpoint-during-cell-cycle-g2-m-phase-transition
#20
Yuqing Shen, John William Sherman, Xuyong Chen, Ruoning Wang
From unicellular to multicellular organisms, cell cycle progression is tightly coupled to biosynthetic and bioenergetic demands. Accumulating evidence has demonstrated the G1/S phase transition as a key checkpoint where cells respond to their metabolic status and commit to replicating the genome. However, the mechanism underlying the coordination of metabolism and the G2/M phase transition in mammalian cells remains unclear. Here we show that the activation of AMP-activated protein kinase (AMPK), a highly conserved cellular energy sensor, significantly delays mitosis entry...
February 21, 2018: Journal of Biological Chemistry
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