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https://www.readbyqxmd.com/read/28749548/c-myc-positive-relapsed-and-refractory-diffuse-large-b-cell-lymphoma-impact-of-additional-hits-and-outcomes-with-subsequent-therapy
#1
Narendranath Epperla, Kami J Maddocks, Mohammed Salhab, Julio C Chavez, Nishitha Reddy, Reem Karmali, Elvira Umyarova, Veronika Bachanova, Cristiana Costa, Martha Glenn, Oscar Calzada, Ana C Xavier, Zheng Zhou, Nasheed M Hossain, Francisco J Hernandez-Ilizaliturri, Zeina Al-Mansour, Stefan K Barta, Saurabh Chhabra, Frederick Lansigan, Amitkumar Mehta, Michael V Jaglal, Andrew Evans, Christopher R Flowers, Jonathon B Cohen, Timothy S Fenske, Mehdi Hamadani, Luciano J Costa
BACKGROUND: The impact of MYC proto-oncogene, basic helix-loop-helix (MYC) translocations (with or without additional rearrangements involving the B-cell lymphoma 2 [BCL2] or BCL6 genes) on the response to salvage therapy and survival in patients with diffuse large B-cell lymphoma (DLBCL) who experience primary treatment failure is not well defined. METHODS: This was a multicenter, retrospective study of the impact of MYC, BCL2, and BCL6 rearrangements in patients with DLBCL who failed to achieve complete remission or relapsed within 6 months after they completed upfront chemoimmunotherapy...
July 27, 2017: Cancer
https://www.readbyqxmd.com/read/28749470/mir-181d-and-c-myc-mediated-inhibition-of-cry2-and-fbxl3-reprograms-metabolism-in-colorectal-cancer
#2
Xiaofeng Guo, Yuekun Zhu, Xinya Hong, Mukun Zhang, Xingfeng Qiu, Zhenfa Wang, Zhongquan Qi, Xuehui Hong
Colorectal cancer (CRC) is the second major cause of tumor-related deaths. MicroRNAs (miRNAs) have pivotal roles in CRC progression. Here, we describe the effect of miR-181d on CRC cell metabolism and underlying molecular mechanism. Our data firmly demonstrated that knockdown of miR-181d suppressed CRC cell proliferation, migration, and invasion by impairing glycolysis. Mechanistically, miR-181d stabilized c-myc through directly targeting the 3'-UTRs of CRY2 and FBXL3, which subsequently increased the glucose consumption and the lactate production...
July 27, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28748751/update-on-nitazoxanide-a-multifunctional-chemotherapeutic-agent
#3
Anshul Shakya, Hans Raj Bhat, Surjit Kumar Ghosh
The thiazolide nitazoxanide (NTZ) is a broad-spectrum anti-infective drug that adversely affects viability, growth, and proliferation of a range of extracellular and intracellular protozoan, helminths, anaerobic and microaerophilic bacteria, and viruses. Current review compiled the potential chemotherapeutic efficacy of NTZ against a variety of such disease-causing macro and/or micro-organisms as well as neoplastic cells. The most accepted anti-infective mechanism of NTZ involves impairment of the energy metabolism in anaerobic pathogens by inhibition of the pyruvate: ferredoxin/flavodoxin oxidoreductase (PFOR)...
July 27, 2017: Current Drug Discovery Technologies
https://www.readbyqxmd.com/read/28747973/effect-of-ionizing-radiation-at-low-dose-on-transgenerational-carcinogenesis-by-epigenetic-regulation
#4
Lan Li, Jong-Hyun Kim, Hee-Tae Park, Jae-Hoon Lee, Min-Koo Park, Ji-Won Lee, Jeong-Chan Lee, Min-Jae Lee
The objective of this study was to determine the effect of ionizing radiation (IR) exposure of parents on carcinogenesis of the next generation focusing on the epigenetic perspective to clarify the relationship between radiation dose and carcinogenesis in F1 generation SD rats. F1 generations from pregnant rats (F0) who were exposed to gamma rays were divided into three groups according to the dose of radiation: 10 rad, 30 rad, and untreated. They were intraperitoneally injected with 50 mg/kg of diethylnitrosamine (DEN)...
June 2017: Laboratory Animal Research
https://www.readbyqxmd.com/read/28746049/microrna-451-modulated-hnrnp-a1-takes-a-part-in-granulocytic-differentiation-regulation-and-acute-myeloid-leukemia
#5
Li Song, Hai-Shuang Lin, Jia-Nan Gong, Hua Han, Xiao-Shuang Wang, Rui Su, Ming-Tai Chen, Chao Shen, Yan-Ni Ma, Jia Yu, Jun-Wu Zhang
Myelopoiesis is under the control of a complex network containing various regulation factors. Deregulation of any important regulation factors may result in serious consequences including acute myeloid leukemia (AML). In order to find out the genes that may take a part in AML development, we analyzed data from AML cDNA microarray (GSE2191) in the NCBI data pool and noticed that heterogeneous nuclear ribonucleoprotein A1 (hnRNP A1) is abnormally over-expressed in AML patients. Then we investigated the function and mechanisms of hnRNP A1 in myeloid development...
July 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28745237/anethole-inhibits-the-proliferation-of-human-prostate-cancer-cells-via-induction-of-cell-cycle-arrest-and-apoptosis
#6
Ayman Ibrahim Elkady
BACKGROUND: Prostate cancer-associated mortality is increasing at an alarming rate, which highlights the inevitability for unearthing novel agent for the management of this disease. Anethole, a major constituent of Foeniculum vulgare (fennel) essential oil, is widely used in folk medicine; it possesses anti-oxidant, anti-inflammatory, anti-proliferative and tumoricidal potentialities. OBJECTIVE: The current research was conducted to assess the impact of anethole on prostate cancer cell line, PC-3, and to delineate the molecular mechanism of action...
July 25, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28743590/sequence-specificity-in-the-entropy-driven-binding-of-a-small-molecule-and-a-disordered-peptide
#7
Gabriella T Heller, Francesco A Aprile, Massimiliano Bonomi, Carlo Camilloni, Alfonso De Simone, Michele Vendruscolo
Approximately one-third of the human proteome is made up of proteins that are entirely disordered or that contain extended disordered regions. Although these disordered proteins are closely linked with many major diseases, their binding mechanisms with small molecules remain poorly understood, and a major concern is whether their specificity can be sufficient for drug development. Here, by studying the interaction of a small molecule and a disordered peptide from the oncogene protein c-Myc, we describe a 'specific-diffuse' binding mechanism, which exhibits sequence specificity despite being of entropic nature...
July 22, 2017: Journal of Molecular Biology
https://www.readbyqxmd.com/read/28743391/valporic-acid-enhances-the-atrial-natriuretic-peptide-anp-mediated-anti-hypertrophic-activity-by-modulating-the-npr1-gene-transcription-in-h9c2-cells-in-vitro
#8
Senthamizharasi Manivasagam, Tamilselvi Velusamy, Boopathi Sowndharajan, Navvi Chandrasekar, Suresh Dhanusu, Elangovan Vellaichamy
The present study was aimed to determine whether stimulating Npr1 gene activity using Valporic acid (VA), a small short chain fatty acid molecule can enhance ANP mediated anti-hypertrophic activity in isoproterenol (ISO) - treated H9c2 cells in vitro. H9c2 cells were treated with ISO (10(-5) M) and co-treated with VA (10(-5) M) in the presence and absence of ANP (10(-8) M), for 48hours. ATRA (10(-5) M) was used as a positive inducer of Npr1 gene transcription. The mRNA expression of Npr1 and PKG-I genes, proto-oncogenes (c-fos, c-jun and c-myc) and hypertrophic markers (ANP, BNP, α-sk and β-MyHC), genes were determined by quantitative PCR (qPCR)...
July 22, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28741879/mir-376a-suppresses-the-proliferation-and-invasion-of-non-small-cell-lung-cancer-by-targeting-c-myc
#9
Youyu Wang, Wei Cong, Gang Wu, Xueming Ju, Zhixi Li, Xin Duan, Xueli Wang, Hong Gao
It has been reported that miR-376a is involved in the formation and progression of several types of cancer However, the expression and function of miR-376a is still unknown in non-small cell lung carcinomas (NSCLC). In this study, the expression of miR-376a in NSCLC tissues and cell lines were examined by real-time PCR, the effects of miR-376a on cell proliferation, apoptosis and invasion were evaluated in vitro. Luciferase reporter assay was performed to identify the targets of miR-376a. The results showed that miR-376a was significantly downregulated in NSCLC tissues and cell lines...
July 25, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28741068/amplification-of-egfr-and-cyclin-d1-genes-associated-with-human-papillomavirus-infection-in-oral-squamous-cell-carcinoma
#10
Jureeporn Chuerduangphui, Chamsai Pientong, Natcha Patarapadungkit, Apinya Chotiyano, Patravoot Vatanasapt, Bunkerd Kongyingyoes, Supannee Promthet, Piyawut Swangphon, Sureewan Bumrungthai, Charinya Pimson, Tipaya Ekalaksananan
Human papillomavirus (HPV) infection is associated with several genetic alterations including oncogene amplification, leading to increased aggression of tumors. Recently, a relationship between HPV infection and oncogene amplification has been reported, but this finding remains controversial. This study therefore investigated relationships between HPV infection and amplification of genes in the epidermal growth factor receptor (EGFR) signaling cascade in oral squamous cell carcinoma (OSCC). Extracted DNA from 142 formalin-fixed paraffin-embedded (FFPE) OSCC tissues was performed to investigate the copy number of EGFR, KRAS, c-myc and cyclin D1 genes using real-time polymerase chain reaction (RT-PCR) and compared with calibrators...
September 2017: Medical Oncology
https://www.readbyqxmd.com/read/28739735/knockdown-of-epha1-using-crispr-cas9-suppresses-aggressive-properties-of-ovarian-cancer-cells
#11
Yuxin Cui, B O Wu, Valentina Flamini, Bronwen A J Evans, Deshan Zhou, Wen G Jiang
BACKGROUND/AIM: Overexpression of erythropoietin-producing hepatocellular A1 (EPHA1), a member of the EPH super family, is frequently observed in various cancer types. The dysregulated interaction of EPHA1 with its ligand Ephrin A1 has been linked to the progression of ovarian cancer (OC). However, the contribution of EPHA1 in the regulation of the aggressive properties of OC cells remains unknown. MATERIALS AND METHODS: In this study we investigated the differential expression of EPHA1 in human OC cells...
August 2017: Anticancer Research
https://www.readbyqxmd.com/read/28736161/-immortalization-of-erythroid-progenitors-for-in-vitro-large-scale-red-cell-production
#12
A Caulier, L Guyonneau Harmand, L Garçon
Population ageing and increase in cancer incidence may lead to a decreased availability of red blood cell units. Thus, finding an alternative source of red blood cells is a highly relevant challenge. The possibility to reproduce in vitro the human erythropoiesis opens a new era, particularly since the improvement in the culture systems allows to produce erythrocytes from induced-Pluripotent Stem Cells (iPSCs), or CD34(+) Hematopoietic Stem Cells (HSCs). iPSCs have the advantage of in vitro self-renewal, but lead to poor amplification and maturation defects (high persistence of nucleated erythroid precursors)...
July 20, 2017: Transfusion Clinique et Biologique: Journal de la Société Française de Transfusion Sanguine
https://www.readbyqxmd.com/read/28735227/microrna-27b-inhibits-cell-proliferation-in-oral-squamous-cell-carcinoma-by-targeting-fzd7-and-wnt-signaling-pathway
#13
Bingyao Liu, Wei Chen, Gang Cao, Zhen Dong, Jinke Xu, Tingyuan Luo, Senlin Zhang
This study intended to investigate the role of microRNA-27b (miR-27b) in proliferation of oral squamous cell carcinoma (OSCC) cells and to explore the potential molecular mechanism. Cell proliferation was detected by MTT assay. The expression levels of miR-27b, Frizzled7 (FZD7), cyclin D1 and c-myc were detected by quantitative real time polymerase chain reaction (qRT-PCR). The protein expression level of FZD7 was detected by western blot analysis. The relationship between miR-27b and FZD7, and the activity of Wnt signaling pathway were determined using luciferase reporter assay...
July 15, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28733577/skin-renewal-activity-of-non-thermal-plasma-through-the-activation-of-%C3%AE-catenin-in-keratinocytes
#14
J H Choi, Y S Song, K Song, H J Lee, J W Hong, G C Kim
For recent years, devices that generate non-thermal plasma (NTP) have been introduced into the field of dermatology. Since NTP has demonstrated strong anti-pathogenic activity with safety of use, NTP was first applied to sterilize the skin surface to aid in the healing of various kinds of skin diseases. However, the effect of NTP on skin regeneration has not yet been fully explored. In this study, the effect of NTP on the growth of keratinocytes was tested using the HaCaT human keratinocyte cell line and HRM2 hairless mice...
July 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28733537/depdc1-is-required-for-cell-cycle-progression-and-motility-in-nasopharyngeal-carcinoma
#15
Xuefei Feng, Chundong Zhang, Ling Zhu, Lian Zhang, Hongxia Li, Longxia He, Yan Mi, Yitao Wang, Jiang Zhu, Youquan Bu
DEP domain containing 1 (DEPDC1) is a newly identified cancer-related and cell cycle related gene and has been demonstrated as a novel therapeutic target for bladder cancer. However, the functional involvement and therapeutic potential of DEPDC1 in nasopharyngeal carcinoma (NPC) remains unclear. Our results showed that DEPDC1 was overexpressed at both mRNA and protein levels in NPC tissues compared with normal or non-tumor tissues. The siRNA-mediated DEPDC1 depletion resulted in significant inhibition of proliferation and delay in cell cycle progression in both NPC cell lines, CNE-1 and HNE-1...
June 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28732366/rassf6-downregulation-promotes-the-epithelial-mesenchymal-transition-and-predicts-poor-prognosis-in-colorectal-cancer
#16
Rui Zhou, Lin Qiu, Xiaolong Liu, Lijuan Ling, Ninglei Li, Kun Zhou, Jingbo Sun, Jian Yan, Canliang Tan, Xiaoping Huang, Luzhe Han, Liangchun Yin, Gang Xiao, Lixin Liu
Distant metastasis is the primary barrier for the successful treatment of patients with colorectal cancer, and thus, searching for new therapeutic targets by further exploring the molecular mechanisms of colorectal cancer metastasis is important. In this study, we investigated the biological and clinical significance of RASSF6 in colorectal cancer as well as the underlying molecular mechanisms. We found that low RASSF6 expression corresponds to a poor prognosis in colorectal cancer patients, and low RASSF6 expression is distinctly associated with tumour progression...
July 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28732361/morusin-inhibits-cell-proliferation-and-tumor-growth-by-downregulating-c-myc-in-human-gastric-cancer
#17
Feng Wang, Dunke Zhang, Jingxin Mao, Xiao-Xue Ke, Rui Zhang, Chao Yin, Ning Gao, Hongjuan Cui
Morusin is a pure extract from the root bark of Morus australis (Moraceae). In recent years, morusin has been reported to exhibit anti-tumor biological activity in some types of human cancers through different mechanisms. Here, we attempted to investigate the inhibitory effect and mechanism of morusin on gastric cancer. Morusin markedly inhibited gastric cancer cell proliferation by down-regulating CDKs and Cyclins, such as CDK2, CDK4, Cyclin D1 and Cyclin E1. Additionally, morusin suppressed tumor growth in vitro and in vivo...
July 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28731194/smurf1-promotes-the-proliferation-migration-and-invasion-of-gastric-cancer-cells
#18
Youmao Tao, Caixia Sun, Tao Zhang, Yan Song
Smad ubiquitin regulatory factor 1 (SMURF1), a well-known E3 ubiquitin ligase, targets substrate proteins for ubiquitination and proteasomal degradation. Accumulating studies have shown that SMURF1 acts as an oncogenic factor in human malignancies. However, the clinical significance of SMURF1 and its role in gastric cancer (GC) remain unclear. The expression of SMURF1 was detected in 68 cases of GC and corresponding tumor-adjacent specimens. Our results revealed that SMURF1 was prominently overexpressed in GC specimens compared to corresponding tumor-adjacent tissues...
July 17, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28731177/co%C3%A2-expression-of-axin-and-apc-gene-fragments-inhibits-colorectal-cancer-cell-growth-via-regulation-of-the-wnt-signaling-pathway
#19
Meili Xu, Xianling Liu, Yan Xu, Shicong Zhu, Yawen Gao
Adenomatous polyposis coli (APC) and Axin interactions serve an important role in colorectal cancer (CRC) pathogenesis. The aim of the present study was to assess the combined effects of Axin and APC co‑expression in CRC cells, and to determine the underlying mechanisms involved. SW480 cells were divided into the following groups: Untransfected (SW480 group), transfected with pEGFP‑N3plus pCS2‑MT (SW480/vector‑vector), transfected with pEGFP‑N3‑APC5 (SW480/APC5), and transfected with pEGFP‑N3‑APC5 pluspCS2‑MT‑Axin (SW480/APC5‑Axin)...
July 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28731158/the-long-non-coding-rna-snhg3-functions-as-a-competing-endogenous-rna-to-promote-malignant-development-of-colorectal-cancer
#20
Weizhen Huang, Yunming Tian, Shaoting Dong, Yinlian Cha, Jun Li, Xiaohong Guo, Xia Yuan
Accumulating evidence has revealed that aberrantly expressed long non-coding transcripts are involved in the development and progression of colorectal cancer (CRC). Small nucleolar RNA host gene 3 (SNHG3) is a newly identified lncRNA, and little is known about its clinical significance and biological functions in the development of CRC. In the present study, we found that the expression of SNHG3 was significantly upregulated in CRC, and upregulation of SNHG3 predicted poor prognosis for patients with CRC as determined through analysis of the data obtained from TCGA database...
July 18, 2017: Oncology Reports
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