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https://www.readbyqxmd.com/read/29222813/reln-signaling-modulates-glioblastoma-growth-and-substrate-dependent-migration
#1
Markus Schulze, Christ Violonchi, Stefan Swoboda, Tobias Welz, Eugen Kerkhoff, Sabine Hoja, Susanne Brüggemann, Johann Simbürger, Jörg Reinders, Markus J Riemenschneider
Glioblastoma (GBM) represents the most common and most malignant type of primary brain tumor and significantly contributes to cancer morbidity and mortality. Invasion into the healthy brain parenchyma is a major feature of glioblastoma aggressiveness. Reelin (RELN) is a large secreted extracellular matrix glycoprotein that regulates neuronal migration and positioning in the developing brain and sustains functionality in the adult brain. We here show that both RELN and its main downstream effector DAB1 are silenced in glioblastoma as compared to non-neoplastic tissue and mRNA expression is inversely correlated with malignancy grade...
December 8, 2017: Brain Pathology
https://www.readbyqxmd.com/read/29222685/prediction-of-outcome-using-pretreatment-18f-fdg-pet-ct-and-mri-radiomics-in-locally-advanced-cervical-cancer-treated-with-chemoradiotherapy
#2
François Lucia, Dimitris Visvikis, Marie-Charlotte Desseroit, Omar Miranda, Jean-Pierre Malhaire, Philippe Robin, Olivier Pradier, Mathieu Hatt, Ulrike Schick
PURPOSE: The aim of this study is to determine if radiomics features from 18fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) and magnetic resonance imaging (MRI) images could contribute to prognoses in cervical cancer. METHODS: One hundred and two patients (69 for training and 33 for testing) with locally advanced cervical cancer (LACC) receiving chemoradiotherapy (CRT) from 08/2010 to 12/2016 were enrolled in this study. 18F-FDG PET/CT and MRI examination [T1, T2, T1C, diffusion-weighted imaging (DWI)] were performed for each patient before CRT...
December 9, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/29222312/harnessing-the-power-of-the-immune-system-in-non-hodgkin-lymphoma-immunomodulators-checkpoint-inhibitors-and-beyond
#3
REVIEW
Stephen M Ansell
Non-Hodgkin lymphoma is a malignancy of B lymphocytes that typically infiltrate sites of disease, including the lymph nodes, spleen, and bone marrow. Beyond the presence of malignant cells, many immune cells are also present within the tumor microenvironment. Although these immune cells have the potential to regulate the growth of malignant B cells, intratumoral immune cells are unable to eradicate lymphoma cells and most patients with lymphoma have clinical evidence of disease progression. Recent data have identified some of the mechanisms that account for the suppressed antitumor immune response and have created opportunities for treatment to overcome the deficiencies...
December 8, 2017: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/29222311/role-of-the-microenvironment-across-histological-subtypes-of-nhl
#4
REVIEW
Karin Tarte
Recent progress in next-generation sequencing strategies has revealed the genetic landscape of B-cell non-Hodgkin lymphoma, but the tumor microenvironment is increasingly recognized as crucial to sustaining malignant B-cell survival and growth, subclonal evolution, and drug resistance. The tumor niche is made up of a dynamic and organized network of strongly heterogeneous immune and stromal cell subsets characterized by specific phenotypic, transcriptomic, and functional features. Nonmalignant cell recruitment and plasticity are dictated by lymphoma B cells, which convert their surrounding microenvironment into a supportive niche...
December 8, 2017: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/29222071/hdac11-is-a-regulator-of-diverse-immune-functions
#5
REVIEW
Cansu Yanginlar, Colin Logie
Histone deacetylases deacetylate histone and non-histone protein targets. Aberrant HDAC expression and function have been observed in several diseases, which makes these enzymes attractive treatment targets. Here, we summarize recent literature that addresses the roles of HDAC11 on the regulation of different immune cells including neutrophils, myeloid derived suppressor cells and T-cells. HDAC11 was initially identified as a negative regulator of the well-known anti-inflammatory cytokine IL-10. Hence, antagonizing HDAC11 activity may have anti-tumor potential, whereas activating HDAC11 may be useful to treat chronic inflammation or autoimmunity...
December 5, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29221966/lesion-magnetic-susceptibility-response-to-hyperoxic-challenge-a-biomarker-for-malignant-brain-tumor-microenvironment
#6
Pinar Senay Özbay, Sonja Stieb, Cristina Rossi, Oliver Riesterer, Andreas Boss, Tobias Weiss, Felix Kuhn, Klaas Paul Pruessmann, Daniel Nanz
BACKGROUND AND PURPOSE: Quantitative susceptibility mapping has been previously used to differentiate lesions in patients with brain tumors. The aim of this work was to characterize the response of magnetic susceptibility differences in malignant brain tumors and surrounding edema to hyperoxic and hypercapnic respiratory challenges. METHODS: Images of malignant brain tumor patients (2 glioblastoma multiforme, 2 anaplastic astrocytoma, 1 brain metastasis) with clinical MRI exams (contrast-enhanced T1w) were acquired at 3T...
December 5, 2017: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/29221210/the-molecular-classification-of-astrocytic-tumors
#7
Chen-Xue Mao, Ji-Ye Yin, Ying Zhang, Zhi-Bin Wang, Zhi-Quan Yang, Zheng-Wen He, Xiang-Min Li, Xiao-Yuan Mao, Ru-Tao Cui, Xue-Jun Li, Xi Li, Wei Zhang, Hong-Hao Zhou, Zhao-Qian Liu
Aim: This study will explore the genetic and epigenetic alterations in astrocytomas, and identify the critical molecular signatures and signaling pathways for prognosis assessment by multiplatform comprehensive analysis. Method: We performed integration analyses of incorporating DNA methylation, mRNA expression, microRNA expression, and long non-coding RNA (lncRNA) expression in 33 astrocytic tumor tissues and 9 non-tumor brain tissues. Result: We observed that 11,795 DNA methylation sites, 3,627 genes, 136 microRNAs, and 3,334 lncRNAs were significantly differential between tumors and non-tumor brain tissues, and the filtered signatures through comprehensive analysis were significantly enriched in calcium signaling pathway...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29221199/long-non-coding-rna-uca1-indicates-an-unfavorable-prognosis-and-promotes-tumorigenesis-via-regulating-akt-gsk-3%C3%AE-signaling-pathway-in-cholangiocarcinoma
#8
Yi Xu, Yue Yao, Kaiming Leng, Zhenglong Li, Wei Qin, Xiangyu Zhong, Pengcheng Kang, Ming Wan, Xingming Jiang, Yunfu Cui
Long non-coding RNAs (lncRNAs) have been documented to play key roles in a wide range of pathophysiological processes, including cancer initiation and progression. Recently, the aberrant expression of urothelial carcinoma associated 1 (UCA1) was observed in many types of cancers. However, its clinical relevance and exact effects in cholangiocarcinoma (CCA) remains unknown. In the present study, we aimed to investigate the clinical significance of UCA1 and evaluate its prognostic value in patients with CCA. Besides, the functional roles of UCA1 were detected both in vitro and in vivo...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29221190/the-m6a-methyltransferase-mettl3-acting-as-a-tumor-suppressor-in-renal-cell-carcinoma
#9
Xiao Li, Jingyuan Tang, Wen Huang, Feng Wang, Pu Li, Chao Qin, Zhiqiang Qin, Qing Zou, Jifu Wei, Lixin Hua, Haiwei Yang, Zengjun Wang
We aimed to study the role of METTL3 in renal cell carcinoma (RCC) carcinogenesis and development. Immunohistochemistry was performed in clinical tissue microarray. Expression level of METTL3 in RCC tissues and cell lines was evaluated by quantitative real-time PCR (qRT-PCR) and western blot. Then, the effects of METTL3 on proliferation, migration, invasion and cell cycle were studied in RCC cells. Additionally, in vivo study was carried out in nude mice. Negative METTL3 expression was associated with larger tumor size (P=0...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29221170/proteoglycan-targeting-applied-to-hypoxia-activated-prodrug-therapy-in-chondrosarcoma-first-proof-of-concept
#10
Aurélien Voissiere, Valérie Weber, Yvain Gerard, Françoise Rédini, Florian Raes, Jean-Michel Chezal, Françoise Degoul, Caroline Peyrode, Elisabeth Miot-Noirault
Due to its abundant chondrogenic matrix and hypoxic tissue, chondrosarcoma is chemo- and radio-resistant. Our group has developed a proteoglycan targeting strategy by using a quaternary ammonium (QA) function as a carrier of DNA alkylating agents to chondrosarcoma environment. Here, we assessed the relevance of this strategy applied to hypoxia-activated prodrugs, by conjugating a QA to 2-nitroimidazole phosphoramidate. This derivative, named as 8-QA, was evaluated respectively to its non-QA equivalent and to a QA-conjugated but non-hypoxia activated...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29221121/tropomyosin-isoform-tpm2-1-regulates-collective-and-amoeboid-cell-migration-and-cell-aggregation-in-breast-epithelial-cells
#11
HyeRim Shin, Dayoung Kim, David M Helfman
Metastasis dissemination is the result of various processes including cell migration and cell aggregation. These processes involve alterations in the expression and organization of cytoskeletal and adhesion proteins in tumor cells. Alterations in actin filaments and their binding partners are known to be key players in metastasis. Downregulation of specific tropomyosin (Tpm) isoforms is a common characteristic of transformed cells. In this study, we examined the role of Tpm2.1 in non-transformed MCF10A breast epithelial cells in cell migration and cell aggregation, because this isoform is downregulated in primary and metastatic breast cancer as well as various breast cancer cell lines...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29220536/cd36-deficiency-attenuates-immune-mediated-hepatitis-in-mice-by-modulating-the-proapoptotic-effects-of-cxcl10
#12
Che Xu, Chen Zhang, Jie Ji, Chao Wang, Jing Yang, Biao Geng, Ting Zhao, Hong Zhou, Xianmin Mu, Jinshun Pan, Shi Hu, Yuanfang Lv, Xingguo Chen, Hao Wen, Qiang You
The scavenger receptor, CD36, recognizes a diverse set of ligands, and has been implicated in a wide variety of normal and pathological processes, including lipid metabolism, angiogenesis, atherosclerosis, and phagocytosis. In particular, recent findings have demonstrated its crucial functions in sterile inflammation and tumor metastasis. However, the role of CD36 in immune-mediated hepatitis remains unclear. Concanavalin A (Con A)-induced liver injury is a well-established experimental T cell-mediated hepatitis...
December 8, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/29218883/tree-based-methods-for-characterizing-tumor-density-heterogeneity
#13
Katherine Shoemaker, Brian P Hobbs, Karthik Bharath, Chaan S Ng, Veerabhadran Baladandayuthapani
Solid lesions emerge within diverse tissue environments making their characterization and diagnosis a challenge. With the advent of cancer radiomics, a variety of techniques have been developed to transform images into quantifiable feature sets producing summary statistics that describe the morphology and texture of solid masses. Relying on empirical distribution summaries as well as grey-level co-occurrence statistics, several approaches have been devised to characterize tissue density heterogeneity. This article proposes a novel decision-tree based approach which quantifies the tissue density heterogeneity of a given lesion through its resultant distribution of tree-structured dissimilarity metrics computed with least common ancestor trees under repeated pixel re-sampling...
2018: Pacific Symposium on Biocomputing
https://www.readbyqxmd.com/read/29218693/non-catalytic-region-of-tyrosine-kinase-adaptor-protein-2-nck2-pathways-as-factor-promoting-aggressiveness-in-ovarian-cancer
#14
Mara Fanelli, Alessia Camperchioli, Lella Petrella, Marco Petrillo, Cinzia Baranello, Pina Baccaro, Carmela Paolillo, Ettore Capoluongo, Giovanni Scambia
BACKGROUND: In this study we investigated the function of the non-catalytic region of tyrosine kinase adaptor protein 2 (NCK2) and its correlation with ITGB1 and ITGB4 integrins in driving ovarian cancer (OvCa) aggressiveness. We also evaluated whether NCK2 may influence prognosis in OvCa patients. METHODS: Nanofluidic technology was used to analyze expression of NCK2 in 332 OvCa patients. To evaluate mRNA expression of NCK2, integrins and VEGFA in OvCa cell lines, qRT-PCR was performed...
December 5, 2017: International Journal of Biological Markers
https://www.readbyqxmd.com/read/29218300/the-dual-role-of-cellular-senescence-in-developing-tumors-and-their-response-to-cancer-therapy
#15
REVIEW
Markus Schosserer, Johannes Grillari, Michael Breitenbach
Cellular senescence describes an irreversible growth arrest characterized by distinct morphology, gene expression pattern, and secretory phenotype. The final or intermediate stages of senescence can be reached by different genetic mechanisms and in answer to different external and internal stresses. It has been maintained in the literature but never proven by clearcut experiments that the induction of senescence serves the evolutionary purpose of protecting the individual from development and growth of cancers...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/29218250/evaluation-of-the-role-of-downregulation-of-snf5-ini1-core-subunit-of-swi-snf-complex-in-clear-cell-renal-cell-carcinoma-development
#16
Elzbieta Sarnowska, Michal Szymanski, Nataliia Rusetska, Marcin Ligaj, Iga Jancewicz, Pawel Cwiek, Marta Skrodzka, Marcin Leszczynski, Joanna Szarkowska, Alicja Chrzan, Malgorzata Stachowiak, Jaroslaw Steciuk, Anna Maassen, Lech Galek, Tomasz Demkow, Janusz A Siedlecki, Tomasz J Sarnowski
Clear cell renal cell carcinoma (ccRCC) is characterized by stabilization of hypoxia-inducible factor (HIF1), and mutations in von Hippel-Lindau (VHL) gene. Additionally, in about 40% of ccRCC cases the mutation in PBRM1 (POLYBROMO1) gene coding for a non-core subunit of SWI/SNF chromatin remodeling complex was found suggesting potential impairment of this complex function in ccRCC. In this study we assessed the extent to which the core SWI/SNF complex subunit - INI1 (hSNF5/SMARCB1) is affected in ccRCC and whether it has any consequences on the development of this type of cancer...
2017: American Journal of Cancer Research
https://www.readbyqxmd.com/read/29218246/angiopoietin-like-protein-2-facilitates-non-small-cell-lung-cancer-progression-by-promoting-the-polarization-of-m2-tumor-associated-macrophages
#17
Xiaojuan Wei, Siyue Nie, Hui Liu, Jingyu Sun, Jie Liu, Juan Li, Shuyan Li, Shuyun Wang, Shuyi Han, Jun Wang, Yuping Sun
The functional phenotypes (M1 and M2) of tumor-associated macrophages (TAMs) are influenced by the tumor microenvironment (TME) and contribute greatly to the development of non-small cell lung cancer (NSCLC). However, the molecular mechanisms for TAM polarization remain unclear. Angiopoietin-like protein 2 (Angptl2) is involved in tumor progression. In this study, Angptl2 expression was aberrantly increased in NSCLC cells and positively correlated with TAM infiltration, tumor size and poor patient survival...
2017: American Journal of Cancer Research
https://www.readbyqxmd.com/read/29218239/csf-1r-regulates-non-small-cell-lung-cancer-cells-dissemination-through-wnt3a-signaling
#18
Yan Xia Yu, Hai Jian Wu, Bing Xu Tan, Chen Qiu, Hui Zhong Liu
Therapeutic antibodies targeting colony stimulating factor 1 receptor (CSF-1R) to block colony stimulating factor-1/colony stimulating factor 1 receptor (CSF-1/CSF-R) signaling axis have exhibit remarkable efficacy in the treatment of malignant tumor. Yet, little is known about the effects of intrinsic CSF-1R in human non-small-cell carcinoma (NSCLC). Here we demonstrated that NSCLC cell-intrinsic CSF-1R promoted cells growth and metastasis both in vitro and in vivo. CSF-1R knocked-down by transfecting with shRNA target CSF-1R suppressed NSCLC cells proliferation and tumor growth in nude mice...
2017: American Journal of Cancer Research
https://www.readbyqxmd.com/read/29217524/mir-29a-a-potential-therapeutic-target-and-promising-biomarker-in-tumors
#19
Jin-Yan Wang, Qian Zhang, Dan-Dan Wang, Wei Yan, Huan-Huan Sha, Jian-Hua Zhao, Su-Jin Yang, He-da Zhang, Jun-Chen Hou, Han-Zi Xu, Yun-Jie He, Jia-Hua Hu, Shan-Liang Zhong, Jin-Hai Tang
MicroRNAs (miRNAs), small non-coding RNA molecules, were recognized to be associated with the incidence and development of diverse neoplasms. MiRNAs were small non-coding RNAs that could regulate post-transcription level by binding to 3'untranslated region (3'UTR) of target messenger RNAs (mRNAs). Among which, miR-29a was demonstrated that it had significant impacts on oncogenicity in various neoplasms through binding to critical genes which enhanced or inhibited the progression of cancers. MiR-29a participated in kinds of physiological and pathological processes, including virus replication, cell proliferation, differentiation, apoptosis, fibrosis, angiogenesis, tumorigenicity, metastasis, drug-resistance and so on...
December 7, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/29217166/long-non-coding-rna-sox21-as1-sponges-mir-145-to-promote-the-tumorigenesis-of-colorectal-cancer-by-targeting-myo6
#20
An-Wei Wei, Li-Fang Li
Emerging evidences have proved that long non-coding RNAs (lncRNAs) act as important molecular regulator in the tumor progression, including colorectal cancer (CRC). LncRNA SOX21-AS1 has been verified as oncogenic molecular in other cancers and tumorigenesis. In present study, our team investigates the clinical characteristic and molecular function in CRC carcinogenesis. Results showed that lncRNA SOX21-AS1 expression was significantly over-expressed in CRC tissue samples and cells. The aberrant over-expression of SOX21-AS1 indicated poor prognosis of CRC patients...
December 4, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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