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Oncology Reports

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https://www.readbyqxmd.com/read/28627702/lentivirus%C3%A2-mediated-knockdown-of-chondroitin-polymerizing-factor-inhibits-glioma-cell-growth-in%C3%A2-vitro
#1
Yang-Hua Fan, Bing Xiao, Shi-Gang Lv, Min-Hua Ye, Xin-Gen Zhu, Miao-Jing Wu
Glioma is the most common primary tumor in the central nervous system, characterized by rapid progression, aggressive behavior, frequent recurrence and poor prognosis. In the present study we demonstrated that chondroitin polymerizing factor (CHPF) is highly expressed in human glioma tissues and 4 glioma cell lines. To explore the role of CHPF in glioma, a lentiviral vector expressing CHPF shRNA was constructed and transfected into the glioma U251 cells, which stably downregulated the expression levels of the CHPF gene in U251 cells in vitro...
June 19, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28627681/b7-h3-promotes-the-proliferation-migration-and-invasiveness-of-cervical-cancer-cells-and-is-an-indicator-of-poor-prognosis
#2
Yi Li, Jingjing Zhang, Sai Han, Qiuhong Qian, Qian Chen, Lu Liu, Youzhong Zhang
B7-H3 is an immune regulatory molecule whose aberrant expression in tumors is associated with adverse outcomes. Upregulation of B7-H3 may promote tumor cell proliferation and metastasis in vitro, but the role of B7-H3 in cervical cancer has not yet been investigated. We measured B7-H3 expression in 90 cervical cancer patient and 20 non‑cervical lesion patient tissues using immunohistochemistry and in 30 cervical cancer patient and 30 healthy donor blood samples using ELISA. The association of B7-H3 expression and the prognosis of cervical cancer patients was investigated...
June 19, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28627635/concomitant-mycobacterium-tuberculosis-infection-promotes-lung-tumor-growth-through-enhancing-treg-development
#3
Yan Zhou, Zhangguo Hu, Shuhui Cao, Bo Yan, Jialin Qian, Hua Zhong
Lung cancer is the most common malignancy in humans. An increased population of CD4+Foxp3+ regulatory T cells (Tregs) in the tumor-associated microenvironment plays an important role in cancer immune evasion. The exact role and the involved mechanisms of concomitant H37Rv infection in non-small cell lung cancer (NSCLC) development are still not clear. Here, we showed that H37Rv infection promoted NSCLC cell growth with a higher percentage of Tregs found in draining lymph nodes. We also determined in vitro that H37Rv infection induced macrophage maturation and PD-L1 expression, which promoted Treg proportion, with enhanced proliferation suppression function...
June 19, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28627629/reducing-autophagy-and-inducing-g1-phase-arrest-by-aloperine-enhances-radio-sensitivity-in-lung-cancer-cells
#4
Zhijie Xu, Yuanliang Yan, Shuangshuang Zeng, Long Qian, Shuang Dai, Lingfang Xiao, Lin Wang, Xue Yang, Yi Xiao, Zhicheng Gong
Aloperine (ALO), an isolated alkaloid from the leaves of Sophora alopecuroides (S. alopecuroides), has been suggested to exhibit anti-inflammatory and antitumor properties, and has been traditionally used to treat various diseases, including cancers. However, little is known about the effects of ALO on the radio-sensitivity of lung cancer cells. In the present study, we confirmed that agent ALO inhibits cell growth, promotes cell aopotosis and induces G1 phase arrest and consequently enhanced the radio-sensitivity in radio-resistant lung cancer cells A549/IR...
June 19, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28627699/mir-30a-inhibits-glioma-progression-and-stem-cell%C3%A2-like-properties-by-repression-of-wnt5a
#5
Yonghong Zhang, Zhi Wu, Lichao Li, Min Xie
miR-30a has been found to be dysregulated in diverse cancers and involved in the regulation of tumor progression. However, there is scarce research on the role of miR-30a in glioma. In the present study, we assessed the expression level of miR-30a in glioma tissues and cell lines. The microRNA microarray analysis revealed low expression of miR-30a in glioma tissues and cells vs. the control. Furthermore, we found that stable miR-30a inhibited cell proliferation, G1 phase arrest and stem cell-like formation in glioma...
June 16, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28627682/microvesicles-released-from-human-embryonic-stem-cell-derived-mesenchymal-stem-cells-inhibit-proliferation-of-leukemia-cells
#6
Yuan Ji, Yongbin Ma, Xiang Chen, Xianyan Ji, Jianyi Gao, Lei Zhang, Kai Ye, Fuhao Qiao, Yao Dai, Hui Wang, Xiangmei Wen, Jiang Lin, Jiabo Hu
Human embryonic stem cell derived-mesenchymal stem cells (hESC‑MSCs) are able to inhibit proliferation of leukemia cells. Microvesicles released from human embryonic stem cell derived-mesenchymal stem cells (hESC‑MSC‑MVs) might play an important part in antitumor activity. Microvesicles were isolated by ultracentrifugation and identified under a scanning electron microscopy and transmission electron microscope separately. After 48-h cocultured with hESC‑MSCs and hESC‑MSC‑MVs, the number of K562 and HL60 was counted and tumor cell viability was measured by CCK8 assay...
June 16, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28627650/the-inhibitory-effects-of-deep-sea-water-on-doxorubicin%C3%A2-induced-epithelial-mesenchymal-transition
#7
So-Young Chun, Soyoung Kim, Kyung-Soo Nam
It has been revealed that the induction of epithelial‑mesenchymal transition (EMT) is associated with drug resistance, leading to tumor recurrence and metastasis. Recent studies have shown that chemotherapeutic agents, besides their therapeutic effects, can induce EMT and enhance invasive and metastatic properties of tumor cells. Previously, we revealed that deep-sea water (DSW) exhibited antimetastatic effects in several human cancer cell lines. In the present study, we investigated the effects of DSW on doxorubicin-induced EMT in MCF-7 human breast cancer cells...
June 16, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28627631/effect-of-oatp1b1-genetic-polymorphism-on-the-uptake-of-tamoxifen-and-its-metabolite-endoxifen
#8
Chun-Mei Gao, Zhichen Pu, Chunyuan He, Dahu Liang, Yuanwei Jia, Xiaolong Yuan, Guangji Wang, Haitang Xie
Overexpression lentivirus platform was established of OATP1B1 (organic anion transporting polypeptides 1B1) wild‑type and mutant type genetic polymorphism in vitro, and using this platform we investigated and compared the uptake of tamoxifen and its metabolites by mutating the 388 and the 521 bases. The overexpression lentivirus cell platforms were successfully constructed, including OATP1B1*1a-HEK293T and OATP1B1*1b-HEK293T and OATP1B1*5-HEK293T cell model, the infection efficiency is not less than 80%...
June 16, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28627709/the-homologous-recombination-protein-rad51-is-a-promising-therapeutic-target-for-cervical-carcinoma
#9
Qian Chen, Dongge Cai, Mu Li, Xiaoling Wu
RAD51 is one of the pivotal enzymes for DNA double-strand break (DSB) repair by the homologous recombination (HR) pathway, which implies it as a promising and novel target for cancer therapy. Recent findings have indicated RAD51 protein is overexpressed in a variety of tumors. The high-expression of RAD51 is related to poor prognosis. RAD51 is involved in the repair of DNA damage and the generation of genetic diversity by an evolutionarily conserved mechanism. However, the exact mechanism of Rad51 in the progression of cervical cancer remains unclear...
June 15, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28627696/desipramine-induces-apoptosis-in-hepatocellular-carcinoma-cells
#10
Dong Kwon Yang, Shang-Jin Kim
Antitumor effects of antidepressants have been reported in many cancer cell lines. However, anti-proliferative effects of desipramine, a tricyclic antidepressant, in hepatocellular carcinoma are currently unknown. In this study, we examined the effects of desipramine in human hepatoma Hep3B cells. To evaluate anti-proliferative effects of desipramine in Hep3B cells, we determined cell viability, reactive oxygen species (ROS) production, mitochondrial membrane potential (MMP), mitogen-activated protein kinase (MAPK) activity, and intracellular Ca2+ levels after desipramine treatment...
June 15, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28627675/distinctive-crypt-shape-in-a-sessile-serrated-adenoma-polyp-distribution-of-ki67-p16ink4a-wnt5a-positive-cells-and-intraepithelial-lymphocytes
#11
Kenji Hisamatsu, Kei Noguchi, Hiroyuki Tomita, Aoi Muto, Natsumi Yamada, Kazuhiro Kobayashi, Akihiro Hirata, Tomohiro Kanayama, Ayumi Niwa, Kazuhisa Ishida, Takayuki Nakashima, Yuichiro Hatano, Natsuko Suzui, Tatsuhiko Miyazaki, Akira Hara
Serrated lesions in the colorectum are currently predominantly classified as hyperplastic polyps (HPs), sessile serrated adenomas/polyps (SSA/Ps), and traditional serrated adenomas (TSAs) according to their morphology. However, the histological morphology and the molecular changes in the serrated lesions are still unclear. We performed immunohistochemistry for Ki67, p16INK4a, and WNT5A in human HPs (n=22), SSA/Ps (n=41), and TSAs (n=19). The distribution of Ki67 and p16INK4a positive cells in TSAs was different from that in HPs and SSA/Ps...
June 15, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28627705/targeting-the-pd-l1-dnmt1-axis-in-acquired-resistance-to-sorafenib-in-human-hepatocellular-carcinoma
#12
Jianhua Liu, Yahui Liu, Lingyu Meng, Kai Liu, Bai Ji
Molecule-targeted therapy, such as sorafenib, is one of the effectively therapeutic options for advanced hepatocellular carcinoma (HCC). However, acquired resistance to sorafenib has been found in some HCC patients, resulting in poor prognosis. It is reported that PD-L1 and DNA methyltransferases (DNMTs) contribute to drug resistance. In this study, by inducing sorafenib-resistant HCC cell lines, we investigated their molecular and functional characteristics. Our data indicated that highly upregulated DNMT1 was positively correlated with PD-L1 overexpression in sorafenib-resistant HCC cells...
June 14, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28627697/cancer-drug-delivery-in-the-nano-era-an-overview-and-perspectives-review
#13
Zhen Li, Shirui Tan, Shuan Li, Qiang Shen, Kunhua Wang
Nanomaterials are increasingly used as drug carriers for cancer therapy. Nanomaterials also appeal to researchers in the areas of cancer diagnosis and biomarker discovery. Several antitumor nanodrugs are currently being tested in preclinical and clinical trials and show promise in therapeutic and other settings. We review the development of nanomaterial drug carriers, including liposomes, polymer nanoparticles, dendritic polymers, and nanomicelles, for the diagnosis and treatment of various cancers. The prospects of nanomaterials as drug carriers for future clinical applications are also discussed...
June 14, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28627689/expression-of-cell-cycle-related-proteins-in-oropharyngeal-squamous-cell-carcinoma-based-on-human-papilloma-virus-status
#14
Koudai Tsuchida, Tamotsu Sugai, Noriyuki Uesugi, Kazuyuki Ishida, Kazuto Matsuura, Ikuro Sato, Kiyoto Shiga, Hiroaki Sato
The molecular association between human papilloma virus (HPV) and cell cycle-related (CCR) proteins is not fully understood in oropharyngeal squamous cell carcinoma (OPSCC). Herein, we examined the expression levels of CCRs in OPSCCs based on HPV status. In situ hybridization (ISH)- and polymerase chain reaction (PCR)-based assays were used to detect HPV status in 98 OPSCCs, and CCRs were detected by immunostaining. Of 98 tumors, 47 had HPV-positive tumors by either ISH- or PCR-based assays. Concordance analysis between ISH- and PCR-based tests showed a good agreement in OPSCC...
June 14, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28627623/p18-peptide-a-functional-fragment-of-pigment-epithelial-derived-factor-inhibits-angiogenesis-in-hepatocellular-carcinoma-via-modulating-vegf-vegfr2-signalling-pathway
#15
Xin Wang, Peng Xiu, Fuhai Wang, Jingtao Zhong, Honglong Wei, Zongzhen Xu, Feng Liu, Jie Li
The P18 peptide is a functional fragment of pigment epithelial-derived factor (PEDF), which is an endogenic angiogenesis inhibitor. This study sought to determine the anti-angiogenic bioactivity of the P18 peptide in hepato-cellular carcinoma (HCC) and to elucidate the underlying mechanism. Xenograft tumour growth assays demonstrated the P18 peptide suppressed angiogenesis of HCC in vivo. Wound healing, Transwell and Matrigel-culture assays indicated that the P18 peptide inhibited the cell migration and tube formation of endothelial cells (ECs) in vitro...
June 14, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28627610/silencing-dek-downregulates-cervical-cancer-tumorigenesis-and-metastasis-via-the-dek-p-ser9-gsk-3%C3%AE-p-tyr216-gsk-3%C3%AE-%C3%AE-catenin-axis
#16
Xiaoyang Xu, Lin Zou, Qiuhui Yao, Yanbo Zhang, Li Gan, Liangdan Tang
Cervical cancer is the second most common gynecological malignancy. The mechanisms of the genesis and progression of cervical cancer are complicated and not thoroughly understood. DEK is reported as an oncogene in various cancers, such as acute myeloid leukemia, bladder cancer, breast cancer and hepatocellular cancer. However, its role in cervical cancer has not been well studied. In our study, we confirmed the DEK protein as an oncoprotein in cervical cancer tissues which is correlated to cervical cancer FIGO staging and tumor type...
June 14, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28627703/overexpression-of-microrna-495-suppresses-the-proliferation-and-invasion-and-induces-the-apoptosis-of-osteosarcoma-cells-by-targeting-high-mobility-group-nucleosome-binding-domain-5
#17
Weibo Jiang, Jia Zheng, Tao Yu, Jincheng Wang
It has been suggested that microRNAs (miRNAs) act as critical regulators in tumorigenesis. MicroRNA-495 (miR-495) has been suggested as a cancer-associated miRNA in various types of cancers; however, the role of miR-495 in osteosarcoma is unknown. The aim of the present study was to determine whether miR-495 is involved in osteosarcoma, and to investigate the potential molecular mechanism of its involvement. We found that miR-495 was significantly downregulated in osteosarcoma tissues and cell lines, as detected by real-time quantitative polymerase chain reaction (RT-qPCR)...
June 13, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28627686/hypoxia-and-acidosis-driven-aberrations-of-secreted-micrornas-in-endometrial-cancer-in-vitro
#18
Julia Eismann, Marc Hirschfeld, Thalia Erbes, Gerta Rücker, Markus Jäger, Andrea Ritter, Daniela Weiss, Gerald Gitsch, Sebastian Mayer
Due to their post-transcriptional regulatory impact on gene expression, microRNAs (miRNA, miRs) influence decisively cellular processes of differentiation, proliferation and apoptosis. In oncogenic pathways various miRNAs exert either oncogenic or tumor suppressor activities in a stage-specific manner. Dysregulation of miRNA expression pattern has been associated with several human cancers including endometrial cancer (EC). In the present study, expression profile alterations of EC associated secreted miRNAs were determined under the microenvironmental stress situations hypoxia and acidosis occurring in tumor progression and metastasis...
June 13, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28627679/exosomes-new-players-in-cancer-review
#19
Wei Guo, Yibo Gao, Ning Li, Fei Shao, Chunni Wang, Pan Wang, Zhenlin Yang, Renda Li, Jie He
The past decade has witnessed an exponential increase in research on exosomes. For many years considered to be extracellular debris, exosomes are now considered important mediators in intercellular communication. The capability of exosomes to transfer proteins, DNA, mRNA, as well as non-coding RNAs has made them an attractive focus of research into the pathogenesis of different diseases, including cancer. Increasing evidence suggests that tumor cells release a large sum of exosomes, which may not only influence proximal tumor cells and stromal cells in local microenvironment, but also can exert systemic effects when participating in blood circulation...
June 13, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28627640/the-function-of-mirnas-in-hepatocarcinogenesis-induced-by-hepatitis-b-virus-x-protein-review
#20
Ziyao Wang, Zhongjun Wu, Ping Huang
MicroRNAs are short RNAs that play a crucial role in all biological processes through post-transcriptional regulation for protein-coding genes and inducing mRNA degradation. Hepatitis B virus infection has been considered as a major risk factor in hepatocellular carcinoma, further research indicates that hepatitis B virus X protein (HBx) is one of the critical links of hepatocarcinogenesis. HBx takes part in hepatocarcinogenesis via regulating transcription, signal transduction, apoptosis, protein degradation and DNA repair...
June 13, 2017: Oncology Reports
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