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Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine

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https://www.readbyqxmd.com/read/28810822/gamma-irradiated-%C3%AE-glucan-modulates-signaling-molecular-targets-of-hepatocellular-carcinoma-in-rats
#1
Sawsan M Elsonbaty, Walid E Zahran, Fatma Sm Moawed
β-glucans are one of the most abundant forms of polysaccharides known as biological response modifiers which influence host's biological response and stimulate immune system. Accordingly, this study was initiated to evaluate irradiated β-glucan as a modulator for cellular signaling growth factors involved in the pathogenesis of hepatocellular carcinoma in rats. Hepatocellular carcinoma was induced with 20 mg diethylnitrosamine/kg BW. Rats received daily by gastric gavage 65 mg irradiated β-glucan/kg BW. It was found that treatment of rats with diethylnitrosamine induced hepatic injury and caused significant increase in liver injury markers with a concomitant significant increase in both hepatic oxidative and inflammatory indices: alpha-fetoprotein, interferon gamma, and interleukin 6 in comparison with normal and irradiated β-glucan-treated groups...
August 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28789597/mtdna-depletion-influences-the-transition-of-cd44-subtypes-in-human-prostate-cancer-du145-cells
#2
Xiaoran Li, Mantas Grigalavicius, Yaqing Li, Xiaoli Li, Yali Zhong, Ruixia Huang, Dandan Yu, Viktor Berge, Mariusz Adam Goscinski, Gunnar Kvalheim, Jahn M Nesland, Zhenhe Suo
Our earlier study revealed that long-term ethidium bromide application causes mitochondrial DNA depletion in human prostate cancer DU145 cell line (DU145(MtDP)), and this DU145(MtDP) subline appears to have expanded CD44(Bright) cell population than its parental wild type DU145 cells (DU145(WT)). Increasing evidence suggests that CD44(Bright) cells are highly cancer stem cell like, but it is not clear about their dynamic transition between CD44(Dim) and CD44(Bright) phenotypes in prostate cancer cells, and how it is affected by mitochondrial DNA depletion...
August 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28789596/circular-rna-hsa_circ_0001564-facilitates-tumorigenesis-of-osteosarcoma-via-sponging-mir-29c-3p
#3
Ji-Feng Li, Yu-Ze Song
Circular RNAs are a novel type of non-coding RNAs generated from back splicing, which has been verified to mediate multiple tumorigenesis. However, the role of circular RNA in osteosarcoma is still unclear. In this study, we preliminarily screened the circular RNAs expression profiles in osteosarcoma and investigated the potential regulation mechanism. The circular RNAs expression profiles in osteosarcoma were screened using circular RNA microarray analysis, and results showed that there were 1152 circular RNAs upregulated and 915 circular RNAs downregulated in tumor tissue compared to adjacent tissue...
August 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28752801/virus-directed-enzyme-prodrug-therapy-and-the-assessment-of-the-cytotoxic-impact-of-some-benzimidazole-derivatives
#4
Michał Szewczuk, Karolina Boguszewska, Marta Żebrowska, Ewa Balcerczak, Marta Stasiak, Maria Świątkowska, Katarzyna Błaszczak-Świątkiewicz
Virus-directed enzyme prodrug therapy is one of the major strategy of increasing cytotoxicity of bioreductive agents. This research intended to examine new selected benzimidazole derivatives as a substrate for nitroreductase, the enzyme involved in nitroreduction which is responsible to the production of cytotoxic metabolites. In this way, the selectivity and strength of cytotoxicity can be raised. The effect of benzimidazoles on virus transfected cells and non-virus transfected cells A549 cell line was established by Annexin V + propidium iodide test, western blot, and polymerase chain reaction analysis of specific pro- and anti-apoptotic proteins in the corresponding gene expression and additionally nitroreductase gene expression...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28720069/long-non-coding-rna-spry4-it1-promotes-proliferation-and-invasion-by-acting-as-a-cerna-of-mir-101-3p-in-colorectal-cancer-cells
#5
Jianguang Jin, Zhijie Chu, Pengfei Ma, Yuanpu Meng, Yanhui Yang
Long non-coding RNAs are associated with a spectrum of biological processes such as gene regulation on transcriptional and post-transcriptional levels. Increasing evidence indicates that SPRY4-IT1 plays an important role in carcinogenesis, and the mechanisms whereby SPRY4-IT1 induces colorectal carcinoma progression remain largely unknown. The aim of this study is to evaluate the expression and function of SPRY4-IT1 in colorectal carcinoma. In this study, we analyzed SPRY4-IT1 expression levels in a series of colorectal carcinoma patients by quantitative reverse transcription polymerase chain reaction...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28720068/inhibitory-effect-of-par-4-combined-with-cisplatin-on-human-wilms-tumor-cells
#6
Jun Wang, Yunjie Li, Fangfang Ma, Huifeng Zhou, Rong Ding, Binbin Lu, Li Zou, Junxia Li, Rugang Lu
Wilms' tumor is associated with a high treatment success rate, but there is still a risk of recurrence. Cisplatin, which is one of the chemotherapeutic agents used for its treatment, is associated with a very high rate of resistance. Par-4 (prostate apoptosis response 4) is a tumor suppressor, which is capable of sensitizing tumor cells to chemotherapy. Therefore, the aim of this study was to determine whether combined treatment with Par-4 and cisplatin is effective for inhibiting growth of Wilms' tumor. Wilms' tumor and control cell samples were collected and analyzed by immunofluorescence assay and immunohistochemistry...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28720067/hpv16-e6-e7-upregulates-hif-2%C3%AE-and-vegf-by-inhibiting-lkb1-in-lung-cancer-cells
#7
Jian-Shuang Shao, Jian Sun, Shiyu Wang, Katherine Chung, Jin Tong Du, Jason Wang, Xue-Shan Qiu, En-Hua Wang, Guang-Ping Wu
Long-term persistent infection of HPV16 E6/E7 is frequently associated with lung cancers, especially in non-smokers and in Asians. However, molecular mechanisms of HPV16 E6/E7 induction of lung cancer are not fully understood. Using bi-directional genetic manipulation and four well-established lung cancer cell lines, we showed HPV16 E6/E7 downregulated expression of liver kinase B1 at both protein and messenger RNA levels; liver kinase B1 downregulated hypoxia-inducible factor 2α at protein level but not at messenger RNA level, and hypoxia-inducible factor 2α upregulated vascular endothelial growth factor at both protein and messenger RNA levels...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28720066/high-expression-of-slc34a2-is-a-favorable-prognostic-marker-in-lung-adenocarcinoma-patients
#8
Zhaoxuan Zhang, Shan Ye, Min Zhang, Jing Wu, Hong Yan, Xiaojie Li, Jie He
Dysregulation of SLC34A2 (NaPi2b) in tumors has attracted wide attention, but its expression and function in non-small cell lung cancer remains unclear. By examining its expression in lung adenocarcinoma and correlation to patient outcome, we aimed to explore its prognostic and therapeutic values in this deadly disease. Overall, 175 cases of lung adenocarcinoma sample were included in this study. Histological subtyping of them was diagnosed according to standards of the International Association for the Study of Lung Cancer/American Thoracic Society/European Respiratory Society in 2011...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28720065/microrna-139-5p-inhibits-bladder-cancer-proliferation-and-self-renewal-by-targeting-the-bmi1-oncogene
#9
Hongbo Luo, Rui Yang, Chun Li, Yongqing Tong, Lingling Fan, Xiuheng Liu, Chuanrui Xu
MiR-139-5p has been reported to be overexpressed in many types of cancers, but its role in bladder cancer has not been elucidated yet. Here, we report that miR-139-5p functions as a tumor suppressor in bladder cancer and inhibits the cancer stem cell self-renewal by targeting Bmi1 directly. We found that miR-139-5p expression was significantly downregulated in the bladder cancer specimens compared with that in adjacent normal tissues. In vitro, restoration of miR-139-5p expression significantly inhibited the proliferation of bladder cancer cells...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28720064/evaluation-of-the-antitumor-activity-of-platinum-nanoparticles-in-the-treatment-of-hepatocellular-carcinoma-induced-in-rats
#10
Amina Medhat, Somaya Mansour, Sawsan El-Sonbaty, Eman Kandil, Mustafa Mahmoud
This study aimed to evaluate the antitumor activity of platinum nanoparticles compared with cis-platin both in vitro and in vivo in the treatment of hepatocellular carcinoma induced in rats. The treatment efficacy of platinum nanoparticles was evaluated by measuring antioxidant activities against oxidative stress caused by diethylnitrosamine in liver tissue. The measurements included reduced glutathione content and superoxide dismutase activity, as well as malondialdehyde level. Liver function tests were also determined, in addition to the evaluation of serum alpha-fetoprotein, caspase-3, and cytochrome c in liver tissue...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28720063/styk1-promotes-warburg-effect-through-pi3k-akt-signaling-and-predicts-a-poor-prognosis-in-nasopharyngeal-carcinoma
#11
Yunfei Zhao, Ling Yang, Jiao He, Huai Yang
STYK1 (Serine/threonine/tyrosine kinase 1), a member of the receptor tyrosine kinase family, exhibits tumorigenicity in many types of cancers. Our study reveals the important role played by STYK1 in nasopharyngeal carcinoma. STYK1 is upregulated in nasopharyngeal carcinoma tissues compared with para-carcinoma. Knockdown of STYK1 inhibits nasopharyngeal carcinoma cell proliferation, migration, and invasion, while ectopic STYK1 expression significantly promoted cell proliferation, migration, and invasion abilities...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28720061/the-long-non-coding-rna-malat1-promotes-the-migration-and-invasion-of-hepatocellular-carcinoma-by-sponging-mir-204-and-releasing-sirt1
#12
Zhouhua Hou, Xuwen Xu, Ledu Zhou, Xiaoyu Fu, Shuhui Tao, Jiebin Zhou, Deming Tan, Shuiping Liu
Increasing evidence supports the significance of long non-coding RNA in cancer development. Several recent studies suggest the oncogenic activity of long non-coding RNA metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) in hepatocellular carcinoma. In this study, we explored the molecular mechanisms by which MALAT1 modulates hepatocellular carcinoma biological behaviors. We found that microRNA-204 was significantly downregulated in sh-MALAT1 HepG2 cell and 15 hepatocellular carcinoma tissues by quantitative real-time polymerase chain reaction analysis...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28720060/ppfia1-is-upregulated-in-liver-metastasis-of-breast-cancer-and-is-a-potential-poor-prognostic-indicator-of-metastatic-relapse
#13
Jing Yang, Ning-Ni Wu, De-Jia Huang, Yao-Chang Luo, Jun-Zhen Huang, Hai-Yuan He, Hai-Lin Lu, Wen-Ling Song
Although the oncogenic role of PPFIA1 (liprin-α1) in breast cancer has been reported, whether its dysregulation is associated with metastasis risk or survival outcomes in breast cancer patients is not clear. Our primary data showed that PPFIA1 expression was significantly higher in liver metastatic breast tumors than in the primary tumors. Then, we tried to pool previous annotated genomic data to assess the prognostic value of PPFIA1 in distant metastasis-free survival, the risk of metastatic relapse, and metastatic relapse-free survival in breast cancer patients by data mining in two large databases, Kaplan-Meier plotter and bc-GenExMiner 4...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28720059/cervical-cancer-cell-derived-angiopoietins-promote-tumor-progression
#14
Ping Yang, Na Chen, Dongyun Yang, Janet Crane, Bangxing Huang, Ruiqing Dong, Xiaoqing Yi, Jing Guo, Jing Cai, Zehua Wang
Metastatic or recurrent cervical cancer has limited treatment options and a high rate of mortality. Although anti-vascular endothelial growth factor drugs have shown great promise as a therapeutic target for treatment of advanced cervical cancer, drug resistance and class-specific side effects negate long-term benefits. The identification of alternative anti-angiogenic factors will be critical for future drug development for advanced or recurrent cervical cancer. In this study, we found that angiopoietins and Tie receptors were highly expressed in cervical cancer cells...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28718379/expression-of-embryonic-stem-cell-markers-in-acute-myeloid-leukemia
#15
Tiphanie Picot, Carmen Mariana Aanei, Amandine Fayard, Pascale Flandrin-Gresta, Sylvie Tondeur, Marina Gouttenoire, Emmanuelle Tavernier-Tardy, Eric Wattel, Denis Guyotat, Lydia Campos
Acute myeloid leukemia is driven by leukemic stem cells which can be identified by cross lineage expression or arrest of differentiation compared to normal hematopoietic stem cells. Self-renewal and lack of differentiation are also features of stem cells and have been associated with the expression of embryonic genes. The aim of our study was to evaluate the expression of embryonic antigens (OCT4, NANOG, SOX2, SSEA1, SSEA3) in hematopoietic stem cell subsets (CD34(+)CD38(-) and CD34(+)CD38(+)) from normal bone marrows and in samples from acute myeloid leukemia patients...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28718378/microrna-613-is-downregulated-in-hcmv-positive-glioblastoma-and-inhibits-tumour-progression-by-targeting-arginase-2
#16
Yan Wang, Peng Zhao, Dongmeng Qian, Ming Hu, Li Zhang, Hailei Shi, Bin Wang
Glioblastoma is the most common and malignant tumour that occurs primarily in nervous system and has a high morbidity. Research on glioblastoma has recently focused on human cytomegalovirus, belonging to the beta subfamily of Herpesviridae that plays crucial roles in cancer development and progression. This study aimed to investigate the role of human cytomegalovirus-associated microRNA-613 in glioblastoma. In this study, we demonstrate that microRNA-613 expression was frequently reduced in human cytomegalovirus-positive glioblastoma specimens/cells compared with human cytomegalovirus-negative glioblastoma tissue/cells, and a significant correlation was observed between the reduction in microRNA-613 expression and the presence of unfavourable variables, including tumour size (p = 0...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28718377/downregulation-of-tyrosine-threonine-kinase-inhibits-tumor-growth-via-g2-m-arrest-in-human-endometrioid-endometrial-adenocarcinoma
#17
Jiamiao Zhang, Yan Jiang, Yu Zhao, Wanxue Wang, Yiran Xie, Huating Wang, Yihua Yang
Endometrial cancer is the most common gynecologic malignancy, about 80% of which is endometrial endometrioid carcinoma. Dysregulation of spindle assembly checkpoint plays a vital role in endometrial endometrioid carcinoma tumorigenesis and progression. The purpose of this study was to explore how tyrosine threonine kinase, a spindle assembly checkpoint-related protein, promotes the endometrial endometrioid carcinoma progression. We found that both messenger RNA and protein levels of tyrosine threonine kinase in endometrial endometrioid carcinoma tissues are higher than those in normal endometrial tissues, and its expression is associated with tumor stages...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28718376/riz1-and-histone-methylation-status-in-pituitary-adenomas
#18
Yake Xue, Ruokun Chen, Wei Du, Fengdong Yang, Xinting Wei
RIZ1 displays strong tumor-suppressive activities, which has a potential histone methyltransferase activity. The objective of the study was to evaluate the level and the methylation status of RIZ1 and analyze its association with clinicopathological features and the histone in the pituitary adenomas. We found that RIZ1-positive cases were 11/50 and H-Scores 22.75 ± 11.83 in invasive pituitary adenomas and 26/53 and 66.3 ± 21.7 in non-invasive pituitary adenomas (χ(2) = 8.182, p = 0.004). RIZ1 and C-myc showed the opposite trend in these cases...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28718375/emp3-is-induced-by-twist1-2-and-regulates-epithelial-to-mesenchymal-transition-of-gastric-cancer-cells
#19
Ming Han, Wanpeng Xu
In this study, we aimed to explore new downstream effectors of TWIST1/2 in inducing epithelial-to-mesenchymal transition in gastric cancer. Bioinformatic data mining was performed using data in The Cancer Genome Atlas Stomach Adenocarcinoma. Survival curves were generated using Kaplan-Meier plotter. Gastric cancer cell lines (AGS and SGC-7901) were used as in vitro cell model to investigate the regulative effect of TWIST1/2 on epithelial membrane protein 3 expression and the progression of epithelial-to-mesenchymal transition...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28718374/cancer-associated-fibroblasts-secrete-fgf-1-to-promote-ovarian-proliferation-migration-and-invasion-through-the-activation-of-fgf-1-fgfr4-signaling
#20
Yuanzhen Sun, Xiaoli Fan, Qing Zhang, Xiaoyu Shi, Guangwei Xu, Cuimin Zou
Ovarian cancer is the most lethal gynecologic malignancy, due to its high propensity for metastasis. Cancer-associated fibroblasts, as the dominant component of tumor microenvironment, are crucial for tumor progression. However, the mechanisms underlying the regulation of ovarian cancer cells by cancer-associated fibroblasts remain little known. Here, we first isolated cancer-associated fibroblasts from patients' ovarian tissues and found that cancer-associated fibroblasts promoted SKOV3 cells' proliferation, migration, and invasion...
July 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
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