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Oncology Research

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https://www.readbyqxmd.com/read/28429680/the-inhibitory-effects-of-hydamtiq-a-novel-parp-inhibitor-on-growth-in-human-tumor-cell-lines-with-defective-dna-damage-response-pathways
#1
Enrico Mini, Ida Landini, Laura Lucarini, Andrea Lapucci, Cristina Napoli, Gabriele Perrone, Renato Tassi, Emanuela Masini, Flavio Moroni, Stefania Nobili
The poly(ADP-ribose) polymerase (PARP) enzymes play key roles in the regulation of cellular processes (e.g. DNA damagerepair, genomic stability). It has been shown that PARP inhibitors (PARPIs) are selectively cytotoxic against cells with dysfunctions in genes involved in DNA repair mechanisms (synthetic lethality). Drug induced PARP inhibition potentiates the activity of anticancer drugs such as 5-fluorouracil in enhancing DNA damage, whose repair involves PARP1 activity.The aim of this study was to evaluate the growth inhibitory effects of a novel PARPI, HYDAMTIQ, on human tumor cell lines characterized by different features with regard to DNA damage response pathways (BRCA mutational status, microsatellite status and ATM expression level) and degree of sensitivity/resistance to 5-fluorouracil...
April 20, 2017: Oncology Research
https://www.readbyqxmd.com/read/28429677/increased-expression-of-cullin-3-in-nasopharyngeal-carcinoma-and-knockdown-inhibits-proliferation-and-invasion
#2
Ruifang Zeng, Guolin Tan, Wei Li, Yanhong Ma
This study aimed to investigate the clinical significance of Cullin 3 expression in nasopharyngeal carcinoma (NPC), aswell as explore the regulatory mechanism of Cullin 3 underlying the growth and metastasis of NPC cells. Our findings showed that the expression levels of Cullin 3 expression were significantly increased in both NPC tissues and cell lines. A strong positive correlation was found between the Cullin 3 expression and Ki67-based proliferation index in NPC tissues. Moreover, Cullin 3 overexpression was correlated with the local relapse and distant metastasis in NPC patients...
April 18, 2017: Oncology Research
https://www.readbyqxmd.com/read/28411362/knockdown-of-long-noncoding-rna-tug1-inhibits-the-proliferation-and-cellular-invasion-of-osteosarcoma-cells-by-sponging-mir-153
#3
Heping Wang, Yanzhang Yu, Shuxin Fan, Leifeng Luo
Long noncoding RNA (lncRNA) Taurine-upregulated gene 1 (TUG1) has been confirmed to be involved in the progression of various cancers, however, its mechanism of action in osteosarcoma has not been well addressed. In our study, TUG1 was overexpressed and miR-153 was downregulated in osteosarcoma tissues and cell lines. Loss-of-function assay showed that TUG1 knockdown suppressed the viability, colony formation, and invasion of osteosarcoma cells in vitro. Moreover, TUG1 was confirmed to be a miR-153 sponge. Ectopic expression of TUG1 reversed the inhibitory effect of miR-153 on the proliferation and invasion of osteosarcoma cells...
April 12, 2017: Oncology Research
https://www.readbyqxmd.com/read/28409556/knockdown-of-tmprss3-a-transmembrane-serine-protease-inhibits-the-proliferation-migration-and-invasion-in-human-nasopharyngeal-carcinoma-cells
#4
Jun-Ying Wang, Xin Jin, Xiao-Feng Li
TMPRSS3 belongs to the large type II transmembrane serine protease (TTSP) family, playing important roles in the development and progression of tumors. However, the function of TMPRSS3 in nasopharyngeal carcinoma (NPC) remains unclear. The present study aimed to examine the impact of TMPRSS3 on the proliferation, migration and invasion of NPC cells and the potential mechanisms. Our results demonstrated that the expression of TMPRSS3 was obviously up-regulated in human NPC tissues and cell lines. Knockdown of TMPRSS3 expression significantly suppressed the proliferation and tumorigenicity of NPC cells in vitro and in vivo...
April 12, 2017: Oncology Research
https://www.readbyqxmd.com/read/28409554/lncrna-ccat1-upregulates-proliferation-and-invasion-in-melanoma-cells-via-suppressing-mir-33a
#5
Li Lv, Jian-Qin Jia, Jin Chen
It is increasingly evident that various long non-coding RNAs (lncRNAs) participate in the tumorigenesis of multiple tumors, including melanoma. LncRNA has been validated as oncogenic factor in multifarious tumor, however, the potential regulatory mechanism of CCAT1 in melanoma is still unclear. The purpose of this study is to investigate the regulation of CCAT1 on melanoma genesis. The expression of CCAT1 in melanoma tissue and cell lines was measured using qRT-PCR. Interference oligonucleotide or mimics sequences were applied to up- or down-regulate RNA expression...
April 12, 2017: Oncology Research
https://www.readbyqxmd.com/read/28409552/long-noncoding-rna-pvt1-promotes-melanoma-progression-via-endogenous-sponging-mir-26b
#6
Bao-Juan Wang, Hong-Wei Ding, Guo-An Ma
Melanoma is an extremely aggressive and high mortality skin malignant tumor, and various long noncoding RNAs (lncRNAs)have been reported to be associated with the oncogenesis of melanoma. The purpose of this study is to investigate the potential roles of lncRNA PVT1 in melanoma progression and to explore the possible mechanisms. A total of 35 patients who were diagnosed as malignant melanoma were enrolled in this study. Expression of PVT1 was significantly up-regulated in melanoma tissue and associated with poor prognosis...
April 12, 2017: Oncology Research
https://www.readbyqxmd.com/read/28409548/rbms3-inhibits-the-proliferation-and-metastasis-of-breast-cancer-cells
#7
Yuan Yang, Lingli Quan, Ye Ling
RBMS3, a gene encoding a glycine-rich RNA-binding protein, belongs to the family of c-Myc gene single-strand binding proteins (MSSP). Recently, several reports have provided evidence that RBMS3 was deregulated in a diverse range of solid tumors and played a critical role in tumor progression. However, it remains unclear whether RBMS3 inhibits the progression of human breast cancer. Thus, the aim of this study was to investigate the role of RBMS3 in breast cancer and explore the underlying mechanism in breast cancer progression...
April 12, 2017: Oncology Research
https://www.readbyqxmd.com/read/28409547/long-non-coding-rna-xist-promotes-osteosarcoma-progression-by-targeting-ras-related-protein-rap2b-via-mir-320b
#8
Gong-Yi Lv, Jun Miao, Xiao-Lin Zhang
Abnormal expression of long non-coding RNA (lncRNAs) often contributes to unrestricted growth and invasion of cancer cells. LncRNA X-inactive specific transcript (XIST) expression is up-regulated in several cancers, however, its underlying mechanism in osteosarcoma (OS) has not been elucidated. In the present study, we found that XIST expression was significantly increased in osteosarcoma tissues and cell lines by LncRNA Profiler and qRT-PCR. The effects of XIST and miR-320b on osteosarcoma cell proliferation and invasion were studied by MTT assay and Transwell invasion assay...
April 12, 2017: Oncology Research
https://www.readbyqxmd.com/read/28390118/erlotinib-associated-rash-in-advanced-non-small-cell-lung-cancer-relation-to-clinicopathological-characteristics-treatment-response-and-survival
#9
Ilias Kainis, Nikolaos Syrigos, Alexandra Kopitopoulou, Ioannis Gkiozos, Effrosyni Filiou, Vasiliki Nikolaou, Evangelia Papadavid
Systematic treatment of advanced Non-Small Cell Lung Cancer (NSCLC) includes targeted treatment with Epidermal Growth Factor Receptor (EGFR) Tyrosine Kinase Inhibitors (TKIs). The development of skin rash and its intensity have been associated with EGFR TKI's efficacy. The main purpose of this study was to further investigate the potential value of Erlotinib - associated rash as a predictor of prognosis and treatment response in a real - world cohort of patients with advanced NSCLC. The medical records of all NSCLC patients, treated with Erlotinib at the Oncology Unit of GPP, Sotiria Athens General Hospital, between 01/01/2014 and 31/08/2016 were retrospectively reviewed...
April 5, 2017: Oncology Research
https://www.readbyqxmd.com/read/28390112/knockdown-of-rap2b-a-ras-superfamily-protein-inhibits-proliferation-migration-and-invasion-in-cervical-cancer-cells-via-regulating-the-erk1-2-signaling-pathway
#10
Yinghua Li, Songyi Li, Lili Huang
Rap2B, belonging to the Ras superfamily, has been demonstrated to be implicated in caner development and function as atumor promoter. However, the role of Rap2B in cervical cancer is unknown. In this study, we investigated the expression pattern and biological functions of Rap2B in cervical cancer. The results showed that Rap2B was overexpressed in cervical cancer tissues and cell lines. Knockdown of Rap2B inhibited the proliferation, migration and invasion of cervical cancer cells. In addition, our tumorigenesis assay showed that Rap2B knockdown suppressed cervical cancer cell growth and metastasis in vivo...
April 3, 2017: Oncology Research
https://www.readbyqxmd.com/read/28390114/mir-1193-suppresses-the-proliferation-and-invasion-of-human-t-cell-leukemia-cells-through-directly-targeting-the-transmembrane-9-superfamily-3-tm9sf3
#11
Liyun Shen, Xingjun Du, Hongyan Ma, Shunxi Mei
MiRNAs have been involved in various types of cancer including T-cell leukemia. In this study, the role of miR-1193 inthe proliferation and invasion of T-cell leukemia cells was explored. First, we found that miR-1193 was sharply downregulated in the T-cell leukemia cells compared with normal T cells. MiR-1193 markedly decreased the proliferation and invasion in Jurkat human T-cell leukemia cells. Then, transmembrane 9 superfamily 3 (TM9SF3) was predicted as a potential target gene of miR-1193, the levels of which in T-cell leukemia patients displayed a strongly negative correlation with miR-1193 levels...
March 30, 2017: Oncology Research
https://www.readbyqxmd.com/read/28390115/long-noncoding-rna-linc01133-sponges-mir-422a-to-aggravate-the-tumorigenesis-of-human-osteosarcoma
#12
Hai-Feng Zeng, Hai-Yan Qiu, Fa-Bo Feng
Long noncoding RNAs (lncRNAs) have been verified to participate in various types of malignant tumor including osteosarcoma (OS), which is the most common primary bone tumor with outstanding morbidity. Although increasing lncRNAs have been reported to mediate occurrence of OS, the potential mechanisms are still unclear. This study intends to uncover the mechanism by which lncRNA LINC01133 functions as miRNAs sponge to mediate OS tumorigenicity. In this study, we found that the expression level of LINC01133 was statistically up-regulated in OS tumor tissue and cell lines compared to noncancerous tissue and normal human osteoplastic cell line...
March 28, 2017: Oncology Research
https://www.readbyqxmd.com/read/28390117/different-cell-cycle-modulation-in-skov-3-ovarian-cancer-cell-line-by-anti-hiv-drugs
#13
Angelica Perna, Angela Lucariello, Carmine Sellitto, Iolanda Agliata, Maria Carleo, Vincenzo Sangiovanni, Vincenzo Esposito, Germano Guerra, Luigi Cobellis, Antonio De Luca
Anti-retroviral drugs used for the treatment of Human Immunodeficiency Virus (HIV) have proven to be effective even against cancer. Drawing from this background the aim of our research project was to evaluate the effects of anti-HIV drugs that belong to the Nucleoside and Nucleotide Reverse Transcriptase Inhibitors (NRTI, abacavir and tenofovir), Non-Nucleoside Reverse Transcriptase Inhibitors (NNRTI, efavirenz and etravirine) and Protease Inhibitors (PI, darunavir) on ovarian adenocarcinoma cell line (Skov-3)...
March 26, 2017: Oncology Research
https://www.readbyqxmd.com/read/28390113/regulation-of-acetate-utilization-by-monocarboxylate-transporter-1-mct1-in-hepatocellular-carcinoma-hcc
#14
Jeong Jeon, Misu Lee, Sang Whang, Jung-Whan Kim, Arthur Cho, Mijin Yun
Altered energy metabolism is a biochemical fingerprint of cancer cells. Hepatocellular carcinoma (HCC) shows reciprocal18F-Fluorodeoxyglucose (FDG) and 11C-acetate uptake, as revealed by positron emission tomography/computed tomography (PET/CT). Previous studies have focused on the role of FDG uptake in cancer cells; in this study, we evaluated the mechanism and roles of 11C-acetate uptake in human HCCs and cell lines. The expression of monocarboxylate transporters (MCTs) was assessed to determine the transporters of 11C-acetate uptake in HCC cell lines and human HCCs with different 11C-acetate uptake...
March 23, 2017: Oncology Research
https://www.readbyqxmd.com/read/28337965/knockdown-of-e2f3-inhibits-proliferation-migration-and-invasion-and-increases-apoptosis-in-glioma-cells
#15
Zhi-Gang Shen, Xiao-Zhou Liu, Chang-Xiu Chen, Jing-Min Lu
E2F3a as a member of E2F family is essential for cell division associated with the progressing of many cancers. Whereas, the biological effects of E2F3a on glioma is less understood. To investigate the functional mechanism of E2F3a in glioma, we examined the expression of E2F3a in glioma tissues and cell lines. We found that E2F3a was upregulated in glioma tissues compared with adjacent tissues and associated a poor survival time. E2F3a was highly expressed in glioma cell lines compared with normal HEB cell lines...
March 23, 2017: Oncology Research
https://www.readbyqxmd.com/read/28337964/targeting-cd47-enhances-the-efficacy-of-anti-pd-1-and-ctla-4-in-esophageal-squamous-cell-cancer-preclinical-model
#16
Hua Tao, Pudong Qian, Feijiang Wang, Hongliang Yu, Yesong Guo
Esophageal squamous cell cancer is a highly aggressive cancer with dismal five-year survival rate. CD47 is a cell transmembrane protein that is involved in cell apoptosis, proliferation, adhesion, migration, and antigen presenting of the immune system. Via interacting with signal regulatory protein-alpha expressed in antigen presenting cells (APCs), CD47 acts as an antiphagocytic mechanism to inhibit APCs dependent antigen presenting. Overxpression of CD47 was found in various cancer types. However, its role in esophageal squamous cell cancer is not clear yet...
March 23, 2017: Oncology Research
https://www.readbyqxmd.com/read/28337962/linc00052-promotes-gastric-cancer-cell-proliferation-and-metastasis-via-activating-wnt-%C3%AE-catenin-signaling-pathway
#17
Yuqiang Shan, Rongchao Ying, Zhong Jia, Wencheng Kong, Yi Wu, Sixin Zheng, Huicheng Jin
Gastric cancer (GC) is one of the most common malignant tumors of digestive system. The etiology of GC is complex and much more attention should be paid on the genetic factors. In this study, we explored the role and function of LINC00052 in GC. We applied qRT-PCR and northern blot to detect the expression of LINC00052 and found it was highly expressed during GC. We also investigated the effects of LINC00052 on tumor prognosis and progression, and found LINC00052 indicated poor prognosis and tumor progression...
March 23, 2017: Oncology Research
https://www.readbyqxmd.com/read/28337960/g-protein-signaling-protein-17-rgs17-is-upregulated-and-promotes-tumor-growth-and-migration-in-human-colorectal-carcinoma
#18
Ling Li, He-Sheng Luo
Colorectal carcinoma is one of the leading causes of cancer-related deaths and has a high tendency for metastasis, which makes it a priority to find novel methods to diagnose and treat colorectal carcinoma in the very early stage. Herein, we studied the role of regulators of G-protein signaling (RGS) family protein RGS17 in colorectal carcinoma growth and metastasis. We found that RGS17 was upregulated in both clinical colorectal carcinoma tissues and cultured colorectal carcinoma cells. Knockdown of RGS17 by specific siRNA decreased, whereas overexpression of RGS17 with expression plasmid increased cell proliferation rate in cultured cells...
March 23, 2017: Oncology Research
https://www.readbyqxmd.com/read/28337959/microrna-940-targets-inpp4a-or-gsk3%C3%AE-and-activates-the-wnt-%C3%AE-catenin-pathway-to-regulate-the-malignant-behavior-of-bladder-cancer-cells
#19
Rong Wang, Yunfeng Wu, Weihua Huang, Weijun Chen
We aimed to explore the roles and regulatory mechanism of microRNA-940 (miR-940) in bladder cancer development. The expressions of miR-940 in bladder cancer tissues and cells were measured. Then miR-940 mimics, miR-940 inhibitor mall interference RNA against INPP4A (si-INPP4A) and GSK3β (si-GSK3β) and their corresponding controls were transfected into cells. We then investigated that the effects of miR-940, INPP4A or GSK3β on cell proliferation, migration, invasion and apoptosis. Additionally, target prediction and luciferase reporter assay were performed to investigate the targets of miR-940...
March 23, 2017: Oncology Research
https://www.readbyqxmd.com/read/28337958/knockdown-of-homeobox-b5-hoxb5-inhibits-cell-proliferation-migration-and-invasion-in-non-small-cell-lung-cancer-cells-through-inactivation-of-the-wnt-%C3%AE-catenin-pathway
#20
Bin Zhang, Na Li, Hao Zhang
Homeobox B5 (HOXB5), a member of the HOX gene family, has been demonstrated to play an important role in tumor progression. However, the expression and functional role of HOXB5 in human non-small cell lung cancer (NSCLC) have not been defined. Thus, the purpose of this study was to elucidate the expression and functional role of HOXB5 in human NSCLC. Our results showed that HOXB5 expression was elevated in human NSCLC tissues and cell lines. The in vitro experiments demonstrated that knockdown of HOXB5 inhibited the proliferation, migration and invasion, as well as prevented the EMT phenotype in NSCLC cells...
March 23, 2017: Oncology Research
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