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American Journal of Cancer Research

Folasade P May, Christine Yu, Jonathan Kaunitz
No abstract text is available yet for this article.
2018: American Journal of Cancer Research
Dechao Jiao, Zongming Li, Ming Zhu, Yanli Wang, Gang Wu, Xinwei Han
Mounting evidence shows that the long non-coding RNA MALAT1 plays a pivotal role in tumorigenesis and metastasis, but the functional significance of MALAT1 in bladder transitional cell carcinoma (BTCC) remains unclear. MALAT1 expression was measured in 56 BTCC patients and 2 BTCC cell lines by real-time PCR. The effects of MALAT1 on BTCC cells were investigated by over-expression approaches in vitro and in vivo . Insights of the mechanism of competitive endogenous RNAs (ceRNAs) were validated through bioinformatic analysis and luciferase assay...
2018: American Journal of Cancer Research
Megan Hall, Bryan Todd, Edwin D Allen, Nga Nguyen, Yoon-Jung Kwon, Vu Nguyen, Jennifer L Hearne, Miguel Martin-Caraballo
Therapies designed to reduce androgen production or receptor activation are effective in limiting prostate tumor growth. However, prolonged treatment with anti-androgen therapies results in the progression of prostate cancers into an androgen refractory state. Neuroendocrine differentiation (NED) has been associated with the progression of prostate cancers to an androgen resistant phenotype. In this work we investigated the effect of disrupting androgen receptor signaling in promoting NED of prostate carcinoma cells and whether it is accompanied by an increase in T-type Ca2+ channel expression...
2018: American Journal of Cancer Research
Mandayam O Nandan, Agnieszka B Bialkowska, Vincent W Yang
Oncogenic K-Ras activation is a common mutational event in colorectal cancer. We previously showed that transcription factor, Krüppel-like factor 5 (KLF5), contributes to intestinal polyposis in mice with K-Ras activation. At 14 months of age, Villin-Cre/LSL-K-RasG12D mice developed small intestinal and colonic hyperplastic polyps while LSL-K-RasG12D had none. The intestinal crypts of Villin-Cre/LSL-K-RasG12D mice contained a higher number of mitotic figures and increased crypt heights compared to controls...
2018: American Journal of Cancer Research
Anna Manawapat-Klopfer, Lisa Wang, Juliane Haedicke-Jarboui, Frank Stubenrauch, Christian Munk, Louise T Thomsen, Peter Martus, Susanne K Kjaer, Thomas Iftner
High genome copy number (viral load) of human papillomavirus (HPV) is being discussed as a risk factor for high-grade cervical lesions. However, conflicting data about the integration status or viral load of the virus as risk factors for prevalent high-grade squamous intraepithelial lesions (HSIL) are found in the literature. To investigate whether viral load and/or integration status are indicative for prevalent ASCUS/LSIL or HSIL, we determined the HPV16 viral load and the physical state of the genome in 644 women with single HPV16 infections stratified by their cytology results from a large Danish population-based cohort consisting of 40,399 women...
2018: American Journal of Cancer Research
Lu Dai, Jing Qiao, Luis Del Valle, Zhiqiang Qin
High-risk human papillomavirus (HPV) infection is the etiological agent of cervical, oral and oropharyngeal cancers. Another oncogenic virus, Kaposi sarcoma-associated herpesvirus (KSHV) can cause several human cancers arising in those immunocompromised patients. KSHV DNA has been detected in the oral cavity and the female genital tract, although its detection rate in cervical samples is relatively low. Therefore, it remains unclear about the role of KSHV co-infection in the development of HPV-related neoplasia...
2018: American Journal of Cancer Research
Wenbo Ke, Li Zeng, Yunbi Hu, Sisi Chen, Min Tian, Qinggang Hu
Increasing evidence has demonstrated that serum soluble B7-H4 (sB7-H4) is a useful tumour marker for cancer diagnosis and prognosis evaluation. Whether sB7-H4 is expressed in the bile of cholangiocarcinoma (CC) and is related to the progression of CC need to be explored. Bile sB7-H4 was obtained through endoscopic retrograde cholangiopancreatography (ERCP) from 213 patients with biliary strictures and detected was detected by a B7-H4 ELISA kit. Diagnostic value was compared among bile sB7-H4, CA19-9, CA12-5, CEA and ERCP-based cytological/tissue examination...
2018: American Journal of Cancer Research
Baosheng Chen
Hepatocellular carcinoma (HCC) is the third leading cause of cancer-related deaths worldwide. Long noncoding RNAs (lncRNAs) are involved in the tumorigenesis and progression of some cancers. However, only a handful of lncRNAs have been functionally identified in HCC. In the present study, we identified a novel functional lncRNA in HCC, termed lncWDR26 (GenBank Accession no. RP11-365O16). Here, we reported that lncWDR26 was significantly downregulated in HCC tissues and cells. Moreover, decreased lncWDR26 expression correlates with larger tumor size, higher clinical stage, and tumor metastasis, and also predicts poor prognosis in patients with HCC...
2018: American Journal of Cancer Research
Ryan A Llewellyn, Michael F Gutknecht, Keena S Thomas, Mark R Conaway, Amy H Bouton
While it has long been recognized that mononuclear phagocytes play a significant role in determining breast tumor progression, the molecular factors that contribute to these events are not fully understood. In this report, we sought to determine whether focal adhesion kinase (FAK) expression in this cell population influences primary breast tumor initiation and growth. Using the MMTV-polyoma middle T (PyVmT) murine model of spontaneous breast cancer, we found that FAK expression in mononuclear phagocytes accelerates tumor initiation/progression during the early stages of PyVmT tumor growth but subsequently restricts tumor growth once the tumors have transitioned to malignancy...
2018: American Journal of Cancer Research
Xue-Liang Zuo, Zhi-Qiang Chen, Jun-Feng Wang, Jin-Guo Wang, Lin-Hu Liang, Juan Cai
Accumulating evidence has indicated that microRNA (miRNA) dysregulation contributes to hepatocellular carcinoma (HCC) progression. miR-337-3p is downregulated in gastric cancer and neuroblastoma; however, its biological function and underlying mechanism in HCC remain unclear. In this study, we showed that the expression level of miR-337-3p was significantly decreased in HCC, and was associated with several clinicopathological characteristics, including tumor multiplicity, histological differentiation, and Barcelona Clinic Liver Cancer stage...
2018: American Journal of Cancer Research
Keiko Taniguchi, Kengo Matsumura, Hiromi Ii, Susumu Kageyama, Eishi Ashihara, Tokuhiro Chano, Akihiro Kawauchi, Tatsuhiro Yoshiki, Susumu Nakata
Gamma-glutamylcyclotransferase (GGCT) was originally identified as a protein highly expressed in bladder cancer tissues by proteomic analysis, and its higher expression in a variety of cancers compared to normal tissues have been shown. Depletion of GGCT in various cancer cells results in antiproliferative effects both in vitro and in vivo ; thus it is considered a promising therapeutic target. Although it has been shown that knockdown of GGCT induces cellular senescence and non-apoptotic cell death, associated with upregulation of cyclin-dependent kinase inhibitors (CDKIs) including p21WAF1/CIP1 , the cellular events that follow GGCT depletion are not fully understood...
2018: American Journal of Cancer Research
Fu Yang, Wan Jun Zhao, Cong Li Jia, Xiao Kai Li, Qiang Wang, Zi Li Chen, De Quan Jiang
Dysregulation of microRNA (miRNA) expression in multiple cancers and their vital roles in malignant cancer progression are well investigated. The purpose of this study was to explore the biological roles of miR-876-3p in pancreatic cancer. We used genome-wide gene expression analysis in clinical pancreatic adenocarcinoma samples to identify miR-876-3p down-regulated in pancreatic cancer. We then collected 22 pairs of pancreatic cancer and the corresponding non-cancerous tissues to determine miR-876-3p level, and confirmed that miR-876-3p was significantly down-regulated in pancreatic cancer...
2018: American Journal of Cancer Research
Quan Liu, Xiao-Yu Wang, Yuan-Yuan Qin, Xian-Lei Yan, Hong-Mou Chen, Qi-Dan Huang, Jia-Kang Chen, Jie-Min Zheng
Gliomas are the most prevalent type of primary brain tumors in adults, accounting for more than 40% of neoplasms in the central nervous system. The spen paralogue and orthologue C-terminal domain containing 1 (SPOCD1) has been recently identified and found to discriminate progressive from non-progressive bladder cancers. In this study, we detected high-level of SPOCD1 expression in glioma and its high expression significantly associated with advanced tumor grade and poor prognosis. In vitro assays showed that knockdown of SPOCD1 significantly inhibited cell proliferation and colony formation capacities in U373 and U87 cells...
2018: American Journal of Cancer Research
Ruixue Wang, Qinhuai Lai, Liangze Tang, Yiran Tao, Yuqin Yao, Yu Liu, Ying Lu, Chaoyong Shen, Ran Lu, Chuanwen Fan, Ruirui Zhang, Yuxi Wang, Lin Yu, Tinghan Yang, Yangping Wu, Yujia Peng, Xian Wei, Yuyin Fu, Weirong Lai, Lantu Gou, Jinliang Yang
5T4, also named as trophoblast glycoprotein, is often upregulated in some cancer cells. Here, we demonstrated that 5T4 was highly expressed in gastric, colorectal, and pancreatic cancer, associated with significantly poor prognosis of gastrointestinal (GI) cancer patients. To search for new targeting drugs for GI cancer, we developed a novel anti-5T4 monoclonal antibody with high affinity and robust internalization ability and conjugated it to the potent microtubule inhibitor DM4 to produce conjugate H6-DM4...
2018: American Journal of Cancer Research
Keshuo Ding, Zhengsheng Wu, Xiaocan Li, Youjing Sheng, Xiaonan Wang, Sheng Tan
Breast cancer is the leading cause of cancer-related mortality in women worldwide. Trastuzumab (Herceptin) is an effective antibody drug for HER2 positive breast cancer; de novo or acquired trastuzumab resistance retarded the use of trastuzumab for at least 70% of HER2 positive breast cancers. In this study, we reported LMO4 (a member of LIM-only proteins) promoted trastuzumab resistance in human breast cancer cells. Over-expression of LMO4 was observed in acquired trastuzumab resistance breast cancer cells SKBR3 HR and BT474 HR...
2018: American Journal of Cancer Research
Xiao-Yu Wang, Long Yuan, Yan-Ling Li, Si-Jie Gan, Lin Ren, Fan Zhang, Jun Jiang, Xiao-Wei Qi
RNA activation (RNAa) is a mechanism of gene activation mediated by small activating RNAs. The activation of gene expression by small activating RNA has excellent targeting specificity and flexibility, with a persistent and strong effect. Studies have shown that the RNAa technique has broad prospects for application in the research on tumor pathogenesis and the treatment of tumors. This paper reviews the literature on RNAa with regard to the course of discovery, the mechanisms and characteristics of action, and the current status and prospects of application...
2018: American Journal of Cancer Research
Qin He, Yu Fu, Dean Tian, Wei Yan
Chronic inflammation plays a decisive role at different stages of cancer development. Inflammasomes are oligomeric protein complexes activated in response to pathogen-associated molecular patterns (PAMPs) and damage-associated molecular patterns (DAMPs). PAMPs and DAMPs are released from infected cells, tumors and damaged tissues. Inflammasomes activate and release inflammatory cytokines such as IL-1β and IL-18. The various inflammasomes and inflammatory cytokines and chemokines play contrasting roles in cancer development and progression...
2018: American Journal of Cancer Research
Aruna, Li Mei Li
Non-small-cell carcinoma (NSCLC) is one of the most lethal malignancies of lung cancers and its prognosis remains dismal due to the paucity of effective therapeutic targets. Recent reports show that Golgi membrane protein 1 (GOLM1) is highly expressed in a variety of tumor cells, functions as a negative regulator of T cells and then promotes tumor progression. However, its expression and role in NSCLC remain unclear. Herein, we showed that GOLM1 was markedly up-regulated in NSCLC cell lines and clinical tissues...
2018: American Journal of Cancer Research
Jie Chai, Dawei Guo, Wanli Ma, Dali Han, Wei Dong, Hongliang Guo, Yi Zhang
Long non-coding RNAs (lncRNAs) have been shown to participate in cancer progression. In the present study, we explored the potential roles of lncRNA-PVT1 in the development process of colorectal cancer (CRC) via miR-455. We found that PVT1 is up-regulated in human CRC tissues compared to adjacent normal tissues. A functional study showed that the silencing of PVT1 expression by siRNAs inhibited cell proliferation, migration and invasion, whereas the overexpression of PVT1 accelerated cell proliferation, migration and invasion in vitro ...
2018: American Journal of Cancer Research
Yao Kang, Xiaojun Zhu, Yanyang Xu, Qinglian Tang, Zongwen Huang, Zhiqiang Zhao, Jinchang Lu, Guohui Song, Huaiyuan Xu, Chuangzhong Deng, Jin Wang
During recent years, long noncoding RNAs (lncRNAs) have been recognized as key regulators in the development and progression of human cancers, however, their roles in osteosarcoma metabolism are still not well understood. The present study aims to investigate the expression profiles and potential modulation of specific lncRNA(s) in osteosarcoma metabolism. The high-throughput Hiseq sequencing was performed to screen for abnormally expressed lncRNAs in osteosarcoma cells cultured under glucose starvation condition, and lncRNA HAND2-AS1 was eventually identified as one that was significantly up-regulated when compared with normal cultured cells...
2018: American Journal of Cancer Research
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