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tumor invasiveness

Jinfeng Kong, Juan Du, Yunling Wang, Mingzi Yang, Jianchao Gao, Xiaofan Wei, Weigang Fang, Jun Zhan, Hongquan Zhang
Kindlin-1, an integrin-interacting protein, has been implicated in TGF-β/Smad3 signaling. However, the molecular mechanism underlying Kindlin-1 regulation of TGF-β/Smad3 signaling remains elusive. Here, we reported that Kindlin-1 is an important mediator of TGF-β/Smad3 signaling by showing that Kindlin-1 physically interacts with TGF-β receptor I (TβRI), Smad anchor for receptor activation (SARA) and Smad3. Kindlin-1 is required for the interaction of Smad3 with TβRI, Smad3 phosphorylation, nuclear translocation, and finally the activation of TGF-β/Smad3 signaling pathway...
October 20, 2016: Oncotarget
Fen Xue, Duanshu Li, Chaosu Hu, Zhuoying Wang, Xiayun He, Yi Wu
Poorly differentiated thyroid carcinoma (PDTC) is a rare and aggressive malignancy with high rates of invasion and distant metastasis. This study was to explore the ability of intensity-modulated radiotherapy (IMRT) combined with chemotherapy to manage unresectable PDTC. Between February 2011 and April 2012, 5 patients with unresectable PDTC were treated by IMRT at our institution and were included in this analysis. The median radiotherapy dose to the gross tumor volume (GTV) was 66 Gy/33 fractions/6.4 weeks...
October 20, 2016: Oncotarget
Friedrich Kommoss, Asma Faruqi, C Blake Gilks, Sarah Lamshang Leen, Naveena Singh, Nafisa Wilkinson, W Glenn McCluggage
We investigated the frequency, histopathologic, and immunohistochemical characteristics of tubal involvement in uterine serous carcinoma (USC) and aimed to clarify the relationship between "serous tubal intraepithelial carcinoma (STIC)" and USC in these cases. Cases of USC with complete tubal examination were prospectively collected and reviewed for the presence of tubal involvement. Immunohistochemical analysis for p53 and WT1 was performed on the endometrial and tubal tumor in cases with tubal involvement...
October 21, 2016: American Journal of Surgical Pathology
Bing Kan, Li Yang, Yan-Jun Wen, Jin-Rong Yang, Ting Niu, Jiong Li, Hong-Xin Deng, Wei Wei, Li-Gong Chen, Quan Zhang, Wei Wang, Yu-Quan Wei
Vascular endothelial growth factor (VEGF) is an important regulating molecule of angiogenesis in tumor formation and progression. Cancer cells always secrete VEGF to stimulate angiogenesis that facilitate growth and invasion of the tumor. In this study, we established a VEGF164 overexpressing LL/2 lung cancer cell model and found that the postirradiated VEGF164-modified tumor cells protected the host against the challenge with LL/2 wild-type tumor cells. Histochemical assay showed that there were large areas of tumor necrosis with macrophage infiltration in the mice vaccinated with the VEGF164-modified tumor vaccine...
October 21, 2016: Anti-cancer Drugs
Li Wang, Yakui Mou, Deping Meng, Yan Sun, Xiumei Chen, Xin Yang, Chuanliang Jia, Xicheng Song, Xuezhong Li
OBJECTIVE: MicroRNAs play an important role in regulating hypopharyngeal cancer development. miR-203 has been previously shown to possess anti-tumor capabilities in many cancers, but not in hypopharyngeal cancer. DESIGN: Using human normal and hypopharyngeal cancer specimens, we explored the expression levels of miR-203 in the two groups, and further correlated them with different stages of cancer and lymph node metastasis. SETTING AND PARTICIPANTS: Applying human pharynx FaDu cancer cells and lentiviral transduction technique, we investigated the effects of miR-203 on cancer cell viability, migration and invasion...
October 24, 2016: Clinical Otolaryngology
Yu Zhang, Yifei Lu, Feng Wang, Sai An, Yujie Zhang, Tao Sun, Jianhua Zhu, Chen Jiang
Inflammation has been reported as one significant hallmark of breast cancer in relation to tumor development, metastasis, and invasion. The bradykinin receptor 1 (B1R) is highly expressed on inflammatory breast tumor cells thus providing a promising targeting site for tumor recognition and sufficient receptor mediated endocytosis. In this study, the authors evaluate the targeting efficiency of l-form and d-form [des-Arg(10) ]kallidin both in vitro and in vivo. To further improve the drug delivery efficiency, the authors establish a dandelion like nanoparticle by combining the polymeric drug conjugates and aptamer complex together...
October 24, 2016: Small
L Soylu, O U Aydin, S Ozbas, B Bilezikci, S Ilgan, A Gursoy, S Kocak
OBJECTIVE: Papillary thyroid carcinoma (PTC) may often appear as multifocal disease. Few studies demonstrated a higher rate of central compartment lymph node metastasis (CCLNM) in multifocal PTC patients. Therefore, the effect of different histological subtypes of multifocal PTC on CCLNM is another subject for further examination. The aim of the present study is to evaluate the rate of central lymph node positivity in multifocal PTC as compared to unifocal disease, and to identify the role of different histologic subtypes of PTC on central neck lymph node positivity...
October 2016: European Review for Medical and Pharmacological Sciences
Y-F Wang, S Zhang, X-Q Li, Y Wang
OBJECTIVE: To investigate Long non-coding RNA HULC (HULC) expression in cervical cancer and to evaluate its clinical significance. PATIENTS AND METHODS: HULC expression in 244 pairs of human cervical cancer and adjacent normal tissues was detected by real-time quantitative RT-PCR assay. The correlation between HULC and clinicopathological factors was also evaluated. The clinical and prognostic significance of HULC expression was analyzed statistically by Kaplan-Meier estimate and Cox regression model...
October 2016: European Review for Medical and Pharmacological Sciences
X Liu, X-D Tian, Y Liu, T Zhang, L Chen
OBJECTIVE: It is well documented that some microRNAs (miRNAs) regulates tumorigenesis and cancer metastases of non-small cell lung cancer (NSCLC). Nevertheless, a role of miR-92b in control of the metastasis of NSCLC has not been acknowledged. MATERIALS AND METHODS: Here, we reported that miR-92b levels were significantly decreased and Twist levels were significantly increased in NSCLC specimens, compared to paired adjacent non-tumor lung tissue. Moreover, the levels of miR-92b and Twist inversely correlated...
October 2016: European Review for Medical and Pharmacological Sciences
Alice Nomura, Kaustav Majumder, Bhuwan Giri, Patricia Dauer, Vikas Dudeja, Sabita Roy, Sulagna Banerjee, Ashok K Saluja
NF-κB has an essential role in the initiation and progression of pancreatic cancer and specifically mediates the induction of epithelial-mesenchymal transition and invasiveness. In this study, we demonstrate the importance of activated NF-κB signaling in EMT induction, lymphovascular metastasis, and neural invasion. Modulation of NF-κB activity was accomplished through the specific NF-κB inhibitor (BAY 11-7085), triptolide, and Minnelide treatment, as well as overexpression of IKBα repressor and IKK activator plasmids...
October 24, 2016: Laboratory Investigation; a Journal of Technical Methods and Pathology
Mathieu Pecqueux, Isabell Liebetrau, Wiebke Werft, Hendrik Dienemann, Thomas Muley, Joachim Pfannschmidt, Benjamin Müssle, Nuh Rahbari, Sebastian Schölch, Markus W Büchler, Jürgen Weitz, Christoph Reissfelder, Christoph Kahlert
MicroRNAs are small non-coding RNAs with a length of 18-25 nucleotides. They can regulate tumor invasion and metastasis by changing the expression and translation of their target mRNAs. Their expression is substantially altered in colorectal cancer cells as well as in the adjacent tumor-associated stroma. Both of these compartments have a mutual influence on tumor progression. In the development of metastases, cancer cells initially interact with the host tissue. Therefore, compartment-specific expression signatures of these three locations-tumor, associated stroma, and host tissue-can provide new insights into the complex tumor biology of colorectal cancer...
October 21, 2016: International Journal of Molecular Sciences
Nantachai Sornkarn, Thrishantha Nanayakkara
When humans are asked to palpate a soft tissue to locate a hard nodule, they regulate the stiffness, speed, and force of the finger during examination. If we understand the relationship between these behavioral variables and haptic information gain (transfer entropy) during manual probing, we can improve the efficacy of soft robotic probes for soft tissue palpation, such as in tumor localization in minimally invasive surgery. Here, we recorded the muscle co-contraction activity of the finger using EMG sensors to address the question as to whether joint stiffness control during manual palpation plays an important role in the haptic information gain...
October 19, 2016: IEEE Transactions on Haptics
Krzysztof Fujarewicz, Krzysztof Lakomiec
We investigate a spatial model of growth of a tumor and its sensitivity to radiotherapy. It is assumed that the radiation dose may vary in time and space, like in intensity modulated radiotherapy (IMRT). The change of the final state of the tumor depends on local differences in the radiation dose and varies with the time and the place of these local changes. This leads to the concept of a tumor's spatiotemporal sensitivity to radiation, which is a function of time and space. We show how adjoint sensitivity analysis may be applied to calculate the spatiotemporal sensitivity of the finite difference scheme resulting from the partial differential equation describing the tumor growth...
December 1, 2016: Mathematical Biosciences and Engineering: MBE
M Fernández Castilla, A Salazar Villacorta, A Martín Nalda, J C Ferreres Piñas, A Coma Muñoz, G Guillén Burrieza
INTRODUCTION: Appendicular actinomycosis is a rare disease produced by cecal appendix invasion by Actinomyces gender bacteria after a predisposing cause that disrupts mucosal barrier, such as acute appendicitis. The highest frequency appears in adults; however, there are cases in paediatric age described in literature. The aim of this article is to introduce a case of appendicular actinomycosis in a child with atypical presentation and to review the literature. CLINICAL CASE: 10-year-old boy transferred to our hospital due to intraoperative finding at a different centre of a right flank tumor, without identification of cecal appendix...
April 20, 2016: Cirugía Pediátrica: Organo Oficial de la Sociedad Española de Cirugía Pediátrica
Zehra Kaya, Mustafa Akkiprik, Sevgi Karabulut, Irem Peker, Gokce Gullu Amuran, Tolga Ozmen, Bahadır M Gulluoglu, Handan Kaya, Ayse Ozer
BACKGROUND: Both insulin-like growth factor-binding protein 7 (IGFBP7) and telomere length (TL) are associated with proliferation and senescence of human breast cancer. This study assessed the clinical significance of both TL and IGFBP7 methylation status in breast cancer tissues compared with adjacent normal tissues. We also investigated whether IGFBP7 methylation status could be affecting TL. METHODS: Telomere length was measured by quantitative PCR to compare tumors with their adjacent normal tissues...
October 24, 2016: Journal of Clinical Laboratory Analysis
X Song, J Hao, J Wang, C Guo, Y Wang, Q He, H Tang, X Qin, Y Li, Y Zhang, Y Yin
The biological function of MAGEC2, a cancer/testis antigen highly expressed in various cancers, remains largely unknown. Here we demonstrate that expression of MAGEC2 induces rounded morphology and amoeboid-like movement of tumor cells in vitro and promotes tumor metastasis in vivo. The pro-metastasis effect of MAGEC2 was mediated by signal transducer and activator of transcription 3 (STAT3) activation. Mechanistically, MAGEC2 interacts with STAT3 and inhibits the polyubiquitination and proteasomal degradation of STAT3 in the nucleus of tumor cells, resulting in accumulation of phosphorylated STAT3 and enhanced transcriptional activity...
October 24, 2016: Oncogene
A Blomme, B Costanza, P de Tullio, M Thiry, G Van Simaeys, S Boutry, G Doumont, E Di Valentin, T Hirano, T Yokobori, S Gofflot, O Peulen, A Bellahcène, F Sherer, C Le Goff, E Cavalier, A Mouithys-Mickalad, F Jouret, P G Cusumano, E Lifrange, R N Muller, S Goldman, P Delvenne, E De Pauw, M Nishiyama, V Castronovo, A Turtoi
Myoferlin is a multiple C2-domain-containing protein that regulates membrane repair, tyrosine kinase receptor function and endocytosis in myoblasts and endothelial cells. Recently it has been reported as overexpressed in several cancers and shown to contribute to proliferation, migration and invasion of cancer cells. We have previously demonstrated that myoferlin regulates epidermal growth factor receptor activity in breast cancer. In the current study, we report a consistent overexpression of myoferlin in triple-negative breast cancer cells (TNBC) over cells originating from other breast cancer subtypes...
October 24, 2016: Oncogene
Shengnan Guo, Yuanyuan Wang, Yu Gao, Yinxu Zhang, Mingzi Chen, Minghao Xu, Lu Hu, Yu Jing, Fangyu Jing, Chen Li, Qingjun Wang, Zhitu Zhu
BACKGROUND High mobility group-box 3 (HMGB3) has been shown to affect tumor initiation and progression. This research aimed to investigate the role of HMGB3 in gastric cancer (GC) cell proliferation, migration, invasion, chemoresistance, and its potential molecular mechanisms. MATERIAL AND METHODS GC MGC803 and BGC823 cells were transfected with siRNA targeting the HMGB3 gene. The expressions of HMGB3 protein in MGC803 and BGC823 cells after transfection were detected by Western blot assays. We detected cell proliferation and cell cycle by MTT and flow cytometry assay...
October 24, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
Himanshi Kapoor, Nalini Yadav, Madhu Chopra, Sushil Chandra Mahapatra, Veena Agrawal
Glioblastoma has been reckoned as the prime cause of death due to brain tumours, being most invasive and lethal. Available treatment options, i.e. surgery, radiotherapy, chemotherapy and targeted therapies are not effective in improving prognosis, so an alternate therapy is insistent. Plant based drugs are efficient due to their synergistic action, multi-targeted approach and least side effects. Present investigation reports the strong anti-tumorous potential of Nardostachys jatamansi rhizome extract (NJRE) on U87 MG glioblastoma cells...
October 19, 2016: Current Cancer Drug Targets
Chaohui Xiao, Cheng Wang, Sijie Cheng, Chengcai Lai, Peirui Zhang, Zizheng Wang, Tao Zhang, Shaogeng Zhang, Rong Liu
Hepatocellular carcinoma (HCC) is the most common neoplasms. Little progress has been made in the diagnosis and treatment of HCC and its prognosis remains poor. Studies have increasingly found that long non-coding RNA (lncRNA) is involved in the regulation of the occurrence and development of HCC. To investigate the diagnostic and prognostic value of lncRNA in HCC, the current study examined 25 lncRNAs with differing levels of expression (according to the fold change) in microarray databases. Expression of LINC RP1130-1 was found to be markedly down-regulated in 51 HCC tissues compared to matching adjacent non-tumor liver tissues...
October 24, 2016: Bioscience Trends
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