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https://www.readbyqxmd.com/read/28927253/comparative-aspects-of-microrna-expression-in-canine-and-human-cancer
#1
REVIEW
Kabiru Sahabi, Gayathri Thevi Selvarajah, Rasedee Abdullah, Cheah Yoke Kqueen, Tan Geok Chin
MicroRNAs (miRNAs) are important players in all biological pathways in multicellular organisms. Over 1,400 human miRNAs have been identified, and many are conserved among vertebrates and invertebrates. MicroRNA regulation is the most abundant mode of post-transcriptional gene regulation. MicroRNAs that are involved in the initiation and progression of cancers are termed oncomiRs, several of which have been identified in canine and human cancer. Similarly, several miRNAs have been reported to be down-regulated in cancers of the two species...
September 20, 2017: Journal of Veterinary Science
https://www.readbyqxmd.com/read/28927233/fibroblast-growth-factor-2-mediated-fgfr-erk-signaling-supports-maintenance-of-cancer-stem-like-cells-in-esophageal-squamous-cell-carcinoma
#2
Osamu Maehara, Goki Suda, Mitsuteru Natsuizaka, Shunsuke Ohnishi, Yoshito Komatsu, Fumiyuki Sato, Masato Nakai, Takuya Sho, Kenichi Morikawa, Koji Ogawa, Tomoe Shimazaki, Megumi Kimura, Ayaka Asano, Yoshiyuki Fujimoto, Shinya Ohashi, Shingo Kagawa, Hideaki Kinugasa, Seiji Naganuma, Kelly A Whelan, Hiroshi Nakagawa, Koji Nakagawa, Hiroshi Takeda, Naoya Sakamoto
In esophageal squamous cell carcinoma (ESCC), a subset of cells defined by high expression of CD44 and low expression of CD24 has been reported to possess characteristics of cancer stem-like cells (CSCs). Novel therapies directly targeting CSCs have the potential to improve prognosis of ESCC patients. Although fibroblast growth factor-2 (FGF-2) expression correlates with recurrence and poor survival in ESCC patients, the role of FGF-2 in regulation of ESCC CSCs has yet to be elucidated. We report that FGF-2 is significantly upregulated in CSCs and significantly increases CSC content in ESCC cell lines by inducing epithelial-mesenchymal transition (EMT)...
September 13, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/28927158/regulation-of-htra2-on-wt1-gene-expression-under-imatinib-stimulation-and-its-effects-on-the-cell-biology-of-k562-cells
#3
Lixia Zhang, Yan Li, Xiaoyan Li, Qing Zhang, Shaowei Qiu, Qi Zhang, Min Wang, Haiyan Xing, Qing Rao, Zheng Tian, Kejing Tang, Jianxiang Wang, Yingchang Mi
The aim of the present study was to investigate the regulation of Wilms Tumor 1 (WT1) by serine protease high-temperature requirement protein A2 (HtrA2), a member of the Htr family, in K562 cells. In addition, the study aimed to observe the effect of this regulation on cell biological functions and its associated mechanisms. Expression of WT1 and HtrA2 mRNA, and proteins following imatinib and the HtrA2 inhibitor 5-[5-(2-nitrophenyl) furfuryl iodine]-1, 3-diphenyl-2-thiobarbituric acid (UCF-101) treatment was detected with reverse transcription-quantitative polymerase chain reaction and western blot analysis...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927145/bcl2-ki-67-index-predict-survival-in-germinal-center-b-cell-like-diffuse-large-b-cell-lymphoma
#4
Yun-Long Tang, Yan Zhou, Ling-Ling Cheng, Yong-Zhong Su, Chun-Bin Wang
Diffuse large B-cell lymphoma (DLBCL) is the most common type of non-Hodgkin lymphoma. BCL2 apoptosis regulator (BCL2) and marker of proliferation Ki-67 (Ki-67) are established prognostic markers, which have traditionally been assessed separately in DLBCL. However, no studies have evaluated the prognostic value of the combination of BCL2 and Ki-67 index. Thus, the present study aimed to analyze the prognostic value of combination of these two markers. Immunohistochemical analysis was used to assess the expression of BCL2 and Ki-67 in 274 cases of DLBCL...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927102/mining-the-glioma-susceptibility-genes-in-children-from-gene-expression-profiles-and-a-methylation-database
#5
Yongqiang Xi, Wanzhong Tang, Song Yang, Maolei Li, Yuchao He, Xianhua Fu
Glioma is the most common type of primary brain tumor, which is associated with a poor prognosis due to its aggressive growth behavior and highly invasive nature. Research regarding glioma pathogenesis is expected to provide novel methods of adjuvant therapy for the treatment of glioma. The use of bioinformatics to identify candidate genes is commonly used to understand the genetic basis of disease. The present study used bioinformatics to mine the disease-related genes using gene expression profiles (GSE50021) and dual-channel DNA methylation data (GSE50022)...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927099/interleukin-6-identified-as-an-important-factor-in-hypoxia-and-aldehyde-dehydrogenase-based-gefitinib-adaptive-resistance-in-non-small-cell-lung-cancer-cells
#6
Shi-Min An, Hui-Min Lei, Xu-Ping Ding, Fan Sun, Chun Zhang, Ya-Bin Tang, Hong-Zhuan Chen, Ying Shen, Liang Zhu
Gefitinib resistance and relapse of the disease were the greatest challenges facing clinical therapy of non-small-cell lung cancer (NSCLC). Of note, regarding the hypoxia condition in solid tumor tissues in vivo, roles of hypoxia in gefitinib adaptive resistance and its association with lung cancer stem cells (LCSCs) have not been fully elucidated. In the present study, the role of hypoxia in gefitinib adaptive resistance and its association with aldehyde dehydrogenase (ALDH)-based LCSC gefitinib resistance were comparatively studied using RNA-sequencing (RNA-seq) technology...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927095/high-expression-of-mage-a9-is-associated-with-unfavorable-survival-in-esophageal-squamous-cell-carcinoma
#7
Yu Qi, Ke Xin Cao, Fu Chen Xing, Chun Yang Zhang, Qi Huang, Kai Wu, Feng Biao Wen, Song Zhao, Xin Li
Melanoma-associated antigens (MAGEs) are a group of well-characterized members of the cancer/testis antigen family, which are expressed in a variety of malignant tumors. MAGE-A9, a subfamily of MAGE-As, has been studied in a number of types of cancer and have been associated with unfavorable survival outcome. However, the expression of MAGE-A9 in human esophageal squamous cell carcinoma (ESCC) and association of MAGE-A9 with the clinicopathological characteristics of ESCC, particularly prognostic characteristics, remains unknown...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927086/quercetin-inhibits-angiogenesis-mediated-human-retinoblastoma-growth-by-targeting-vascular-endothelial-growth-factor-receptor
#8
Wei Song, Xiaofei Zhao, Jiarui Xu, Han Zhang
Retinoblastoma (RB) is the most common malignant intraocular cancer in teenagers, occurrence of which depends on the mutation of multiple genes. Among all the signaling pathways involved in the oncogenesis of RB, the process of angiogenesis has been demonstrated to be associated with the local invasive growth and metastasis of this cancer type. Quercetin (Que) is a typical flavonoid and has been reported to inhibit angiogenesis in various types of tumors. In the present study, the effect of Que on RB cells and angiogenesis of RB was evaluated...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927072/arsenic-trioxide-potentiates-sensitivity-of-multiple-myeloma-cells-to-lenalidomide-by-upregulating-cereblon-expression-levels
#9
Yuan Jian, Wen Gao, Chuanying Geng, Huixing Zhou, Yun Leng, Yanchen Li, Wenming Chen
The mechanism of the anti-myeloma effect of the immunomodulatory drug lenalidomide relies upon the binding of lenalidomide or an analogue to cereblon (CRBN) ubiquitin ligase, which inhibits it and results in the degradation of Ikaros-family zinc finger proteins 1 and 3 (IKZF1 and IKZF3). To determine whether the traditional Chinese medicine arsenic trioxide, could potentiate sensitivity of multiple myeloma (MM) cells to lenalidomide and identify the mechanism by which this happens, the present study investigated how arsenic trioxide affected CRBN on MM cell lines and examined the anti-myeloma effect and mechanism in the combination of arsenic trioxide and lenalidomide...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927068/microrna-184-inhibits-cell-proliferation-and-metastasis-in-human-colorectal-cancer-by-directly-targeting-igf-1r
#10
Guannan Wu, Jiayun Liu, Zhenfeng Wu, Xiaoyu Wu, Xuequan Yao
Colorectal cancer is currently the third most common cancer in males and the second in females worldwide. In spite of marked progress having been achieved in surgical resection, radiotherapy and chemotherapy, the prognosis for patients with colorectal cancer remains poor. Previous studies have demonstrated that the abnormal expression of microRNAs contributed to human cancer carcinogenesis and progression, suggesting miRNAs as novel therapeutic targets in colorectal cancer. The aim of the present study was to investigate the expression, functions and underlying molecular mechanisms of microRNA-184 (miR-184) in colorectal cancer...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927063/microrna-494-is-a-potential-prognostic-marker-and-inhibits-cellular-proliferation-migration-and-invasion-by-targeting-sirt1-in-epithelial-ovarian-cancer
#11
Aijun Yang, Xuenan Wang, Chunna Yu, Zhenzhen Jin, Lingxia Wei, Jinghe Cao, Qin Wang, Min Zhang, Lin Zhang, Lei Zhang, Cuifang Hao
Ovarian cancer is one of the most common types of gynecological malignancy worldwide, and is the fourth leading cause of cancer-associated mortality among women. Despite improvements in therapeutic treatments, the prognosis for epithelial ovarian cancer (EOC) remains poor, mainly due to the rapid growth and metastasis of ovarian cancer tumors. An increasing number of studies have indicated that microRNAs (miRNAs) are involved in the carcinogenesis and progression of human cancer, suggesting that miRNAs may be used in clinical prognosis and as a therapeutic target in EOC...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927055/silencing-dna-methyltransferase-1-leads-to-the-activation-of-the-esophageal-suppressor-gene-p16-in-vitro-and-in-vivo
#12
Jian Bai, Xue Zhang, Bangqing Liu, Haiyong Wang, Zhenzong Du, Jianfei Song
Previous studies have demonstrated that DNA methyltransferase 1 (DNMT1) is required for the maintenance of DNA methylation and epigenetic changes that may lead to the development of esophageal squamous cell carcinoma (ESCC). In order to investigate whether the silencing of DNMT1 protects tumor suppressor genes, including p16, and is able to be used as a potential therapy for human ESCC, short hairpin RNA targeting DNMT1 (shRNA-DNMT1) was synthesized and transfected into the human ESCC lines KYSE150 and KYSE410, which were then injected into the backs of nude mice prior to harvesting...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927027/cancer-associated-fibroblasts-an-essential-role-in-the-tumor-microenvironment
#13
Leilei Tao, Guichun Huang, Haizhu Song, Yitian Chen, Longbang Chen
Fibroblasts in the tumor stroma are well recognized as having an indispensable role in carcinogenesis, including in the initiation of epithelial tumor formation. The association between cancer cells and fibroblasts has been highlighted in several previous studies. Regulation factors released from cancer-associated fibroblasts (CAFs) into the tumor microenvironment have essential roles, including the support of tumor growth, angiogenesis, metastasis and therapy resistance. A mutual interaction between tumor-induced fibroblast activation, and fibroblast-induced tumor proliferation and metastasis occurs, thus CAFs act as tumor supporters...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28926997/effects-of-cellular-methylation-on-transgene-expression-and-site-specific-integration-of-adeno-associated-virus
#14
Diptiman Chanda, Jonathan A Hensel, Jerome T Higgs, Rajat Grover, Niroop Kaza, Selvarangan Ponnazhagan
DNA methylation is a major epigenetic event that affects not only cellular gene expression but that also has the potential to influence bacterial and viral DNA in their host-dependent functions. Adeno-associated virus (AAV) genome contains a high degree of CpG sequences capable of methylation in its terminal repeat sequences, which are the sole elements retained in AAV-based vectors used in gene therapy. The present study determined the influence of methylation status of the host cell on wild type (wt) AAV integration and recombinant (r) AAV transgene expression in HeLa cells...
September 18, 2017: Genes
https://www.readbyqxmd.com/read/28926891/-advances-in-immune-checkpoint-inhibitors-in-gastrointestinal-cancer
#15
X R Zhu, L Z Zheng
Currently, immunotherapy is considered as the fourth major modality of cancer treatment except surgery, chemotherapy and radiotherapy. The new therapeutic approach based on immune checkpoint inhibitors is a landmark innovation. Strategies considering checkpoint inhibitors have shown good anti-tumor effect by targeting cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) and programmed cell death protein 1 (PD-1) or programmed cell death ligand 1 (PD-L1). Moreover, DNA mismatch repair-deficient tumors appear to be potential candidates for these therapies...
September 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28926527/genistein-suppresses-aerobic-glycolysis-and-induces-hepatocellular-carcinoma-cell-death
#16
Sainan Li, Jingjing Li, Weiqi Dai, Qinghui Zhang, Jiao Feng, Liwei Wu, Tong Liu, Qiang Yu, Shizan Xu, Wenwen Wang, Xiya Lu, Kan Chen, Yujing Xia, Jie Lu, Yingqun Zhou, Xiaoming Fan, Wenhui Mo, Ling Xu, Chuanyong Guo
BACKGROUND: Genistein is a natural isoflavone with many health benefits, including antitumour effects. Increased hypoxia-inducible factor 1 α (HIF-1α) levels and glycolysis in tumour cells are associated with an increased risk of mortality, cancer progression, and resistance to therapy. However, the effect of genistein on HIF-1α and glycolysis in hepatocellular carcinoma (HCC) is still unclear. METHODS: Cell viability, apoptosis rate, lactate production, and glucose uptake were measured in HCC cell lines with genistein incubation...
September 19, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28926522/bos-is-associated-with-increased-cytotoxic-proinflammatory-cd8-t-nkt-like-and-nk-cells-in-the-small-airways
#17
Greg Hodge, Sandra Hodge, Aeneas Yeo, Phan Nguyen, Emily Hopkins, Chien-Li Holmes-Liew, Paul N Reynolds, Mark Holmes
BACKGROUND: Immunosuppression therapy after lung transplantation fails to prevent bronchiolitis obliterans syndrome (BOS) in many patients, primarily a disease of the small airways. We have reported that BOS is associated with a lack of suppression of cytotoxic mediators, and proinflammatory cytokines, in peripheral blood T, NKT-like (particularly CD8+) and NK cells. We also showed a loss of glucocorticoid receptor (GCR) in proinflammatory lymphocytes after transplant. It is unknown whether these proinflammatory lymphocytes target the small and/or large airways in BOS...
October 2017: Transplantation
https://www.readbyqxmd.com/read/28926422/two-faces-of-hippo-activate-or-suppress-the-hippo-pathway-in-cancer
#18
Jingwen Cao, Wenlong Huang
The Hippo pathway has generated considerable interest in recent years because of its involvement in several key hallmarks of cancer progression and metastasis. Research on the Hippo signaling pathway in cancer has been used to determine the activity of yes-associated protein (YAP) in tumorigenesis and disease progression. Previous studies have shown that the Hippo pathway can be used as a target to inhibit YAP activity and is a viable treatment for cancer. However, more studies are required to further advance our understanding of the Hippo signaling pathway in cancer...
September 18, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28926405/elevated-ischemic-stroke-risk-among-women-living-with-hiv-infection
#19
Felicia C Chow, Susan Regan, Markella V Zanni, Sara E Looby, Cheryl D Bushnell, James B Meigs, Steven K Grinspoon, Steve K Feske, Virginia A Triant
OBJECTIVE: To determine if the greater risk of ischemic stroke observed in women living with HIV infection (WLWH) compared with HIV-uninfected women persists after accounting for both traditional and sex-specific stroke risk factors. METHODS: We performed an observational cohort study of WLWH (n = 1,214) and demographics-matched HIV-uninfected women (n = 12,041) seen between 1996 and 2011 at two tertiary care hospitals in Boston. We used Cox proportional hazards regression analyses to model time to ischemic stroke, adjusting first for demographics and traditional stroke risk factors and then for sex-specific stroke risk factors, including menopause and estrogen use...
September 18, 2017: AIDS
https://www.readbyqxmd.com/read/28926357/first-in-human-treatment-with-a-dendritic-cell-targeting-lentiviral-vector-expressing-ny-eso-1-lv305-induces-deep-durable-response-in-refractory-metastatic-synovial-sarcoma-patient
#20
Seth M Pollack, Hailing Lu, Sacha Gnjatic, Neeta Somaiah, Ryan B O'Malley, Robin L Jones, Frank J Hsu, Jan Ter Meulen
Effective induction of antitumor T cells is a pivotal goal of cancer immunotherapy. To this end, lentiviral vectors (LV) are uniquely poised to directly prime CD8 T-cell responses via transduction of dendritic cells in vivo and have shown promise as active cancer therapeutics in preclinical tumor models. However, until now, significant barriers related to production and regulation have prevented their widespread use in the clinic. We developed LV305, a dendritic cell-targeting, integration-deficient, replication incompetent LV from the ZVex platform, encoding the full-length cancer-testis antigen NY-ESO-1...
September 18, 2017: Journal of Immunotherapy
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