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https://www.readbyqxmd.com/read/29778424/nrage-confers-poor-prognosis-and-promotes-proliferation-invasion-and-chemoresistance-in-gastric-cancer
#1
Xiaodi Jiang, Xiaofeng Jiang, Zhi Yang
Neurotrophin receptor-interacting melanoma antigen-encoding protein (NRAGE) is a type II melanoma-associated antigen that plays an essential role in various processes, including cell differentiation and apoptosis. NRAGE has been shown to act as a cancer-related protein, with complex and apparently contradictory functions in a variety of cancers. In the current study, we examined the expression of NRAGE protein in 169 gastric cancer samples. NRAGE upregulation was correlated with advanced TNM stage, local invasion, and poor survival...
May 17, 2018: Gene
https://www.readbyqxmd.com/read/29777785/psmd2-regulates-breast-cancer-cell-proliferation-and-cell-cycle-progression-by-modulating-p21-and-p27-proteasomal-degradation
#2
Yunhai Li, Jing Huang, Beilei Zeng, Dejuan Yang, Jiazheng Sun, Xuedong Yin, Mengqi Lu, Zhu Qiu, Weiyan Peng, Tingxiu Xiang, Hongzhong Li, Guosheng Ren
Alterations in the ubiquitin-proteasome system (UPS) and UPS-associated proteins have been implicated in the development of many human malignancies. In this study, we investigated the expression profiles of 797 UPS-related genes using HiSeq data from The Cancer Genome Atlas and identified that PSMD2 was markedly upregulated in breast cancer. High PSMD2 expression was significantly correlated with poor prognosis. Gene set enrichment analysis revealed that transcriptome signatures involving proliferation, cell cycle, and apoptosis were critically enriched in specimens with elevated PSMD2...
May 16, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29773595/therapeutic-effects-of-the-novel-subtype-selective-histone-deacetylase-hdac-inhibitor-chidamide-on-myeloma-associated-bone-disease
#3
Jingsong He, Qingxiao Chen, Huiyao Gu, Jing Chen, Enfan Zhang, Xing Guo, Xi Huang, Haimeng Yan, DongHua He, Yang Yang, Yi Zhao, Gang Wang, Huang He, Qing Yi, Zhen Cai
Histone deacetylases are promising therapeutic targets in hematological malignancies. In the present work, we investigated the effect of chidamide, a new subtype-selective histone deacetylase inhibitor that was independently produced in China, on multiple myeloma and its associated bone diseases using different models. The cytotoxicity of chidamide toward myeloma is due to its induction of cell apoptosis and cell cycle arrest by increasing the levels of caspase family proteins, including p21 and p27, among others...
May 17, 2018: Haematologica
https://www.readbyqxmd.com/read/29765513/20-s-protopanaxadiol-regio-selectively-targets-androgen-receptor-anticancer-effects-in-castration-resistant-prostate-tumors
#4
Mohamed Ben-Eltriki, Subrata Deb, Mohamed Hassona, Gray Meckling, Ladan Fazli, Mei Yieng Chin, Nada Lallous, Takeshi Yamazaki, William Jia, Paul S Rennie, Artem Cherkasov, Emma S Tomlinson Guns
We have explored the effects of 20(S)-protopanaxadiol (aPPD), a naturally derived ginsenoside, against androgen receptor (AR) positive castration resistant prostate cancer (CRPC) xenograft tumors and have examined its interactions with AR. In silico docking studies for aPPD binding to AR, alongside transactivation bioassays and in vivo efficacy studies were carried out in the castration-resistant C4-2 xenograft model. Immunohistochemical (IHC) and Western blot analyses followed by evaluation of AR, apoptotic, cell cycle and proliferative markers in excised tumors was performed...
April 20, 2018: Oncotarget
https://www.readbyqxmd.com/read/29764867/3d-fibrin-stiffness-mediates-dormancy-of-tumor-repopulating-cells-via-a-cdc42-driven-tet2-epigenetic-program
#5
Yuying Liu, Jiadi Lv, Xiaoyu Liang, Xiaonan Yin, Le Zhang, Degao Chen, Xun Jin, Roland Fiskesund, Ke Tang, Jingwei Ma, Huafeng Zhang, Wenqian Dong, Siqi Mo, Tianzhen Zhang, Feiran Cheng, Yabo Zhou, Jing Xie, Ning Wang, Bo Huang
Dormancy is recognized as a critical biological event for tumorigenic cells surviving in an extremely harsh environment. Understanding the molecular process of dormancy can unlock novel approaches to tackle cancers. We recently reported that stem-like tumor-repopulating cells (TRC) sense mechanical signals and rapidly proliferate in a 90 Pa soft fibrin matrix. Here we show that a stiff mechanical environment induces TRC dormancy via an epigenetic program initiated by translocation of Cdc42, a cytosolic regulator of mechanotransduction, into the nucleus, where it promotes transcription of hydroxymethylating enzyme Tet2...
May 15, 2018: Cancer Research
https://www.readbyqxmd.com/read/29763885/intrauterine-growth-restriction-affects-cerebellar-granule-cells-in-the-developing-guinea-pig-brain
#6
Mary Tolcos, Annie McDougall, Amy Shields, Yoonyoung Chung, Rachael O'Dowd, Ann Turnley, Megan Wallace, Sandra Rees
Intrauterine growth restriction (IUGR) can lead to adverse neurodevelopmental sequelae in postnatal life. However, the effects of IUGR on the cerebellum are still to be fully elucidated. A major determinant of growth and development of the cerebellum is proliferation and subsequent migration of cerebellar granule cells. Our objective was to determine whether IUGR, induced by chronic placental insufficiency (CPI) in guinea pigs, results in abnormal cerebellar development due to deficits suggestive of impaired granule cell proliferation and/or migration...
May 15, 2018: Developmental Neuroscience
https://www.readbyqxmd.com/read/29755561/crude-methanol-extract-of-echinophora-platyloba-induces-apoptosis-and-cell-cycle-arrest-at-s-phase-in-human-breast-cancer-cells
#7
Elnaz Birjandian, Nasrin Motamed, Narguess Yassa
The aim of the present study was to determine cytotoxic activity of crude methanolic extract of Echinophora platyloba on breast cancer MDA-MB-231 cell line. The free radical scavenging effects of methanolic extract of E. platyloba were tested using DPPH method. Crude methanolic extract exhibited potential antioxidant activity with an IC50 value of 234.28 ± 21.63 μg/mL when compared to the standard BHT with an IC50 value of the 19.5 ± 0.8 μg/mL. In addition, the in-vitro cytotoxic activity of this extract was studied against MDA-MB-231 and MCF-10a cells by MTT assay for 12, 24 and 36 h...
2018: Iranian Journal of Pharmaceutical Research: IJPR
https://www.readbyqxmd.com/read/29754469/mirna-103a-3p-promotes-human-gastric-cancer-cell-proliferation-by-targeting-and-suppressing-atf7-in-vitro
#8
Xiaoyi Hu, Jiyu Miao, Min Zhang, Xiaofei Wang, Zhenzhen Wang, Jia Han, Dongdong Tong, Chen Huang
Studies have revealed that miR-103a-3p contributes to tumor growth in several human cancers, and high miR-103a-3p expression is associated with poor prognosis in advanced gastric cancer (GC) patients. Moreover, bioinformatics analysis has shown that miR-103a-3p is upregulated in The Cancer Genome Atlas (TCGA) stomach cancer cohort. These results suggest that miR-103a-3p may function as an oncogene in GC. The present study aimed to investigate the role of miR- 103a-3p in human GC. miR-103a-3p expression levels were increased in 33 clinical GC specimens compared with adjacent nontumor stomach tissues...
May 10, 2018: Molecules and Cells
https://www.readbyqxmd.com/read/29751615/the-maxi-k-bk-channel-antagonist-penitrem-a-as-a-novel-breast-cancer-targeted-therapeutic
#9
Amira A Goda, Abu Bakar Siddique, Mohamed Mohyeldin, Nehad M Ayoub, Khalid A El Sayed
Breast cancer (BC) is a heterogeneous disease with different molecular subtypes. The high conductance calcium-activated potassium channels (BK, Maxi-K channels) play an important role in the survival of some BC phenotypes, via membrane hyperpolarization and regulation of cell cycle. BK channels have been implicated in BC cell proliferation and invasion. Penitrems are indole diterpene alkaloids produced by various terrestrial and marine Penicillium species. Penitrem A ( 1 ) is a selective BK channel antagonist with reported antiproliferative and anti-invasive activities against multiple malignancies, including BC...
May 11, 2018: Marine Drugs
https://www.readbyqxmd.com/read/29751524/%C3%AE-asarone-induces-apoptosis-and-cell-cycle-arrest-of-human-glioma-u251-cells-via-suppression-of-hnrnp-a2-b1-mediated-pathway-in-vitro-and-in-vivo
#10
Li Li, Yi Yang, Mingxia Wu, Zanyang Yu, Chengqiang Wang, Guojun Dou, Hui He, Hongmei Wang, Na Yang, Hongyi Qi, Xiaoyu Xu
HnRNP A2/B1 has been found to be an oncogenic protein strongly related to the growth of human glioma cells. Herein, β-asarone, the main component in the volatile oil of Acori tatarinowii Rhizoma, inhibited the cell viability, proliferation, and colony formation ability of U251 cells. Moreover, β-asarone induced apoptosis and cell cycle arrest at the G1 phase. Notably, β-asarone suppressed the expression of hnRNP A2/B1 and hnRNPA2/B1 overexpression remarkably reversed β-asarone-mediated apoptosis and cell cycle arrest...
May 3, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29750086/-p27-v109g-polymorphism-is-not-associated-with-the-risk-of-prostate-cancer-a-case-control-study-of-han-chinese-men-in-central-china
#11
Meng Zhang, Qianjun Liang, Ligang Zhang, Zongyao Hao, Jun Zhou, Li Zhang, Song Fan, Chaozhao Liang
Objective: We conducted an update meta-analysis aiming to verify the association between p27 -V109G polymorphism and cancer risk, particular for prostate cancer (PCa). Then, we conducted a case-control study of Han Chinese in central China to verify the evidence-based results. Methods: Relevant studies were collected from diverse databases up to March 2017. In addition, a hospital-based (H-B) case-control study enrolling 90 PCa patients and 140 healthy controls was included to verify these evidence-based findings...
2018: Disease Markers
https://www.readbyqxmd.com/read/29749520/silencing-of-urg11-expression-inhibits-the-proliferation-and-epithelial%C3%A2-mesenchymal-transition-in-benign-prostatic-hyperplasia-cells-via-the-rhoa-rock1-pathway
#12
Guanying Zhang, Feng Zhu, Guangye Han, Zeyu Li, Quanfeng Yu, Zhenhui Li, Jianchang Li
Upregulated gene 11 (URG11) represents a gene upregulated by hepatitis B virus X protein and is involved in the biological processes of multifarious tumors. The present study aimed to investigate the protective effects and regulatory mechanisms of URG11 in benign prostatic hyperplasia (BPH). URG11, Ras homolog family member A (RhoA) and Rho‑associated protein kinase 1 (ROCK1) expression was detected in patients with BPH using reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR). Furthermore, URG11 expression was silenced using URG11‑targeting small interfering RNAs...
May 8, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29748147/17-beta-hydroxysteroid-dehydrogenase-13-inhibits-the-progression-and-recurrence-of-hepatocellular-carcinoma
#13
Jun Chen, Jian-Yong Zhuo, Fan Yang, Zhi-Kun Liu, Lin Zhou, Hai-Yang Xie, Xiao Xu, Shu-Sen Zheng
BACKGROUND: Our previous study showed that 17-beta-hydroxysteroid dehydrogenase 13 (HSD17B13) is down-regulated in hepatocellular carcinoma (HCC). But its function in HCC remains unknown. This study aimed to reveal the function of HSD17B13 and its clinical significance in HCC. METHODS: mRNA levels of HSD17B13 were analyzed in cohort 1 (30 normal, 30 HBV cirrhosis, 60 HBV-related HCC and 60 peritumoral tissue) by real-time PCR. HSD17B13 protein was evaluated in cohort 2 (15 normal, 33 HBV-cirrhosis, 12 dysplastic nodules, 34 HBV-related HCC, and 9 metastatic HCC) using immunohistochemistry...
April 22, 2018: Hepatobiliary & Pancreatic Diseases International: HBPD INT
https://www.readbyqxmd.com/read/29742504/mir-142-3p-enhances-cell-viability-and-inhibits-apoptosis-by-targeting-cdkn1b-and-timp3-following-sciatic-nerve-injury
#14
Dong-Mei Wu, Xin Wen, Xin-Rui Han, Shan Wang, Yong-Jian Wang, Min Shen, Shao-Hua Fan, Juan Zhuang, Zi-Feng Zhang, Qun Shan, Meng-Qiu Li, Bin Hu, Chun-Hui Sun, Jun Lu, Yuan-Lin Zheng
BACKGROUND/AIMS: MiRNAs are involved in phenotype modulation of neural cells after peripheral nerve injury. However, the roles of miRNAs on the survival of dorsal root ganglion (DRG) neurons have not yet been fully understood. METHODS: In this study, the expression of miR-142-3p was measured in rat DRGs (L4-L6) during the initial 24 hours post sciatic nerve transection by microarray profiling and quantitative PCR. The functional assays including the cell viability, colony formation, cell cycle and apoptosis assays were performed in miR-142-3p mimic or inhibitor transfected cell lines...
May 4, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29741771/gp78-involvement-in-cellular-proliferation-can-act-as-a-promising-modulator-for-cell-cycle-regulatory-proteins
#15
Vibhuti Joshi, Arun Upadhyay, Deepak Chhangani, Ayeman Amanullah, Rajesh N Sharan, Amit Mishra
In cells, protein synthesis and degradation are normal processes, which are tightly regulated by various cellular metabolic pathways. Cellular protein quality control (PQC) mechanisms always present a continuous and rigorous check over all intracellular proteins before they can participate in various cellular physiological processes with the help of PQC pathways like autophagy and ubiquitin proteasome system (UPS). The UPS employs few selective E3 ubiquitin ligases for the intracellular degradation of cyclin-dependent kinase inhibitor 1B (p27Kip1 ) that tightly controls cell cycle progression...
May 9, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29741716/riboflavin-depletion-promotes-tumorigenesis-in-hek293t-and-nih3t3-cells-by-sustaining-cell-proliferation-and-regulating-cell-cycle-related-gene-transcription
#16
Lin Long, Jian-Zhong He, Ye Chen, Xiu-E Xu, Lian-Di Liao, Yang-Min Xie, En-Min Li, Li-Yan Xu
Background: Riboflavin is an essential component of the human diet and its derivative cofactors play an established role in oxidative metabolism. Riboflavin deficiency has been linked with various human diseases. Objective: The objective of this study was to identify whether riboflavin depletion promotes tumorigenesis. Methods: HEK293T and NIH3T3 cells were cultured in riboflavin-deficient or riboflavin-sufficient medium and passaged every 48 h...
May 7, 2018: Journal of Nutrition
https://www.readbyqxmd.com/read/29737325/the-mek1-2-inhibitor-azd6244-sensitizes-braf-mutant-thyroid-cancer-to-vemurafenib
#17
Hao Song, Jinna Zhang, Liang Ning, Honglai Zhang, Dong Chen, Xuelong Jiao, Kejun Zhang
BACKGROUND [i]BRAF[/i]V600E mutation occurs in approximately 45% of papillary thyroid cancer (PTC) cases, and 25% of anaplastic thyroid cancer (ATC) cases. Vemurafenib/PLX4032, a selective BRAF inhibitor, suppresses extracellular signal-regulated kinase kinase/extracellular signal-regulated kinase 1/2 (MEK/ERK1/2) signaling and shows beneficial effects in patients with metastatic melanoma harboring the [i]BRAFV600E[/i] mutation. However, the response to vemurafenib is limited in BRAF-mutant thyroid cancer. The present study evaluated the effect of vemurafenib in combination with the selective MEK1/2 inhibitor AZD6244 on cell survival and explored the mechanism underlying the combined effect of vemurafenib and AZD6244 on thyroid cancer cells harboring BRAFV600E...
May 8, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29736745/activation-of-the-cannabinoid-type-2-receptor-by-a-novel-indazole-derivative-normalizes-the-survival-pattern-of-lymphoblasts-from-patients-with-late-onset-alzheimer-s-disease
#18
Patricia Del Cerro, Carolina Alquézar, Fernando Bartolomé, Pedro González-Naranjo, Concepción Pérez, Eva Carro, Juan A Páez, Nuria E Campillo, Ángeles Martín-Requero
BACKGROUND: Alzheimer's disease is a multifactorial disorder for which there is no disease-modifying treatment yet. CB2 receptors have emerged as a promising therapeutic target for Alzheimer's disease because they are expressed in neuronal and glial cells and their activation has no psychoactive effects. OBJECTIVE: The aim of this study was to investigate whether activation of the CB2 receptor would restore the aberrant enhanced proliferative activity characteristic of immortalized lymphocytes from patients with late-onset Alzheimer's disease...
May 7, 2018: CNS Drugs
https://www.readbyqxmd.com/read/29731558/evaluating-the-expression-of-p16-and-p27-in-oral-epithelial-dysplasias-and-oral-squamous-cell-carcinoma-a-diagnostic-marker-for-carcinogenesis
#19
Lalita Jayaram Thambiah, R V Bindushree, Afshan Anjum, Satish Kumaran Pugazhendi, Lokesh Babu, Renju Prem Nair
Objective: Immunohistochemical evaluation of the degree of expression of p16 and p27 in oral epithelial dysplasia and different histological grades oral squamous carcinoma. Materials and Methods: The study consisted of 5 cases of oral squamous cell carcinoma (OSCC), 5 cases of low-risk potentially malignant disorders (PMDs), 5 cases of high-risk PMDs and 5 cases of normal epithelium. Five micrometer thickness sections on a positively charged slide were subjected to immunohistochemical staining for the localization of p16 and p27...
January 2018: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/29730957/homeostasis-apoptosis-and-cell-cycle-in-normal-and-pathological-prostate
#20
Norelia Torrealba, Gonzalo Rodríguez-Berriguete, Raúl Vera, Benito Fraile, Gabriel Olmedilla, Pilar Martínez-Onsurbe, Manuel Sánchez-Chapado, Ricardo Paniagua, Mar Royuela
Prostatic diseases such as hyperplasia and cancer are a consequence of glandular aging due to the loss of homeostasis. Glandular homeostasis is guaranteed by the delicate balance between production and cell death. Both cell renewal and apoptosis are part of this delicate balance. We will explore the predictive capacity for biochemical progression, following prostatectomy, of some members of the Bcl-2 family and of proteins involved in cell cycle inhibition in conjunction with established classical markers. The expression of Bcl-2, Bcl-xL, Mcl-1, Bax, Bim, Bad, PUMA, Noxa, p21, p27, Rb and p53 were analyzed by immunochemistry in 86 samples of radical prostatectomy and correlated with each of the markers established clinicopathological tests using statistical tests such as Sperman, Kaplan-Meier curves, unifactorial Cox, and multifactorial...
May 6, 2018: Aging Male: the Official Journal of the International Society for the Study of the Aging Male
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