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https://www.readbyqxmd.com/read/29346317/liposomal-tricurin-a-synergistic-combination-of-curcumin-epicatechin-gallate-and-resveratrol-repolarizes-tumor-associated-microglia-macrophages-and-eliminates-glioblastoma-gbm-and-gbm-stem-cells
#1
Sumit Mukherjee, Juliet N E Baidoo, Samay Sampat, Andrew Mancuso, Lovena David, Leah S Cohen, Shuiqin Zhou, Probal Banerjee
Glioblastoma (GBM) is a deadly brain tumor with a current mean survival of 12-15 months. Despite being a potent anti-cancer agent, the turmeric ingredient curcumin (C) has limited anti-tumor efficacy in vivo due to its low bioavailability. We have reported earlier a strategy involving the use two other polyphenols, epicatechin gallate (E) from green tea and resveratrol (R) from red grapes at a unique, synergistic molar ratio with C (C:E:R: 4:1:12.5, termed TriCurin) to achieve superior potency against HPV+ tumors than C alone at C:E:R (μM): 32:8:100 (termed 32 μM+ TriCurin)...
January 18, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29345295/upregulation-of-the-bdnf-trkb-pathway-promotes-epithelial-mesenchymal-transition-as-well-as-the-migration-and-invasion-of-cervical-cancer
#2
Yuan Yuan, Hai-Qiong Ye, Qian-Chuan Ren
Brain-derived neurotrophic factor (BDNF) has previously been demonstrated to be associated with several types of cancer. In addition, its receptor, tropomyosin related kinase B (TrkB) is involved in tumor invasion and metastasis. Epithelial-mesenchymal transition (EMT) is associated with metastasis in cancers. Thus, The aim of the present study was to examine whether BDNF/TrKB expression is linked to a poor survival and the acquisition of the EMT phenotype in cervical cancer. We found that a high positive expression of BDNF/TrKB was associated with poor survival in cervical cancer...
February 2018: International Journal of Oncology
https://www.readbyqxmd.com/read/29345288/downregulation-of-mir%C3%A2-205-is-associated-with-glioblastoma-cell-migration-invasion-and-the-epithelial-mesenchymal-transition-by-targeting-zeb1-via-the-akt-mtor-signaling-pathway
#3
Wei Chen, Kuan-Kei Kong, Xin-Ke Xu, Cheng Chen, Hui Li, Fang-Yu Wang, Xiao-Fang Peng, Zhan Zhang, Ping Li, Jun-Liang Li, Fang-Cheng Li
Glioblastoma (GBM) is the most common type of malignant brain tumor. In spite of recent advancements in surgical techniques, chemotherapy, and radiation therapy, patients with GBM often face a dire prognosis. MicroRNAs have been shown to modulate the aggressiveness of various cancers, and have emerged as possible therapeutic agents for the management of GBM. miR‑205 is dysregulated in glioma and act as a prognostic indicator. However, the role of miR‑205 in the development of GBM has not been elucidated...
February 2018: International Journal of Oncology
https://www.readbyqxmd.com/read/29345190/magnetoelectric-nanoparticles-for-delivery-of-antitumor-peptides-into-glioblastoma-cells-by-magnetic-fields
#4
Tiffanie S Stewart, Abhignyan Nagesetti, Rakesh Guduru, Ping Liang, Emmanuel Stimphil, Ali Hadjikhani, Luis Salgueiro, Jeffrey Horstmyer, Renzhi Cai, Andrew Schally, Sakhrat Khizroev
AIM: We studied externally controlled anticancer effects of binding tumor growth inhibiting synthetic peptides to magnetoelectric nanoparticles (MENs) on treatment of glioblastomas. METHODS: Hydrothermally synthesized 30-nm MENs had the core-shell composition of CoFe2O4@BaTiO3. Molecules of growth hormone-releasing hormone antagonist of the MIA class (MIA690) were chemically bound to MENs. In vitro experiments utilized human glioblastoma cells (U-87MG) and human brain microvascular endothelial cells...
January 18, 2018: Nanomedicine
https://www.readbyqxmd.com/read/29344889/quantitative-analysis-of-tyrosine-kinase-signaling-across-differentially-embedded-human-glioblastoma-tumors
#5
Hannah Johnson, Forest M White
Glioblastoma is the most aggressive primary brain tumor with a poor mean survival even with the current standard of care. Kinase signaling analyses of clinical glioblastoma samples provide a physiologically relevant view of oncogenic signaling networks. Here, we describe the methods that enable the quantification of protein expression profiles and phosphotyrosine signaling across flash frozen and optimal cutting temperature (OCT) compound embedded tumor specimens. The data derived from these experiments can be used to identify the intra- and inter-patient heterogeneity present in these tumors...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29344766/patient-reported-symptoms-before-palliative-radiotherapy-predict-survival-differences
#6
Carsten Nieder, Thomas A Kämpe, Adam Pawinski, Astrid Dalhaug
BACKGROUND: Widely used prognostic scores, e. g., for brain or bone metastases, are based on disease- and patient-related factors such as extent of metastases, age and performance status, which were available in the databases used to develop the scores. Few groups were able to include patient-reported symptoms. In our department, all patients were assessed with the Edmonton Symptom Assessment System (ESAS, a one-sheet questionnaire addressing 11 major symptoms and wellbeing on a numeric scale of 0-10) at the time of treatment planning since 2012...
January 17, 2018: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/29344753/comparative-approach-of-mri-based-brain-tumor-segmentation-and-classification-using-genetic-algorithm
#7
Nilesh Bhaskarrao Bahadure, Arun Kumar Ray, Har Pal Thethi
The detection of a brain tumor and its classification from modern imaging modalities is a primary concern, but a time-consuming and tedious work was performed by radiologists or clinical supervisors. The accuracy of detection and classification of tumor stages performed by radiologists is depended on their experience only, so the computer-aided technology is very important to aid with the diagnosis accuracy. In this study, to improve the performance of tumor detection, we investigated comparative approach of different segmentation techniques and selected the best one by comparing their segmentation score...
January 17, 2018: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
https://www.readbyqxmd.com/read/29344660/purple-sweet-potato-color-attenuates-high-fat-induced-neuroinflammation-in-mouse-brain-by-inhibiting-mapk-and-nf-%C3%AE%C2%BAb-activation
#8
Jian Li, Zhao Shi, Yongjie Mi
Purple sweet potato color (PSPC) is a natural anthocyanin pigment that is derived from purple sweet potato storage roots. PSPC possesses a variety of biological activities, including antioxidant, anti‑inflammatory and neuroprotective effects; however, the detailed effects of PSPC on high‑fat diet (HFD)‑induced neuroinflammation remain to be determined. The aim of the present study was to investigate whether PSPC has a protective role in HFD‑associated neuroinflammation in the mouse brain and to provide novel insight into the mechanisms of the action...
January 17, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29344216/hypermethylation-downregulates-p2x7-receptor-expression-in-astrocytoma
#9
Jing Liu, Ningning Li, Ruofan Sheng, Rui Wang, Zude Xu, Ying Mao, Yin Wang, Ying Liu
The present study investigated the altered expression of p2X purinoceptor (P2X7R) in astrocytoma. Reverse transcription-quantitative polymerase chain reaction and western blot analysis were used to determine the P2X7R expression in glioblastoma (GBM) and surrounding normal brain tissue. DNA methylation levels of P2X7R gene promoter in GBM were analyzed using a Sequenom MassARRAY® System. Immunohistochemistry (IHC) was used to detect the expression of P2X7R in astrocytoma at different malignancy grades, including diffuse astrocytoma, anaplastic astrocytoma and GBM...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29344156/effects-of-syndecan-1-on-the-expression-of-syntenin-and-the-migration-of-u251-glioma-cells
#10
Jun Chen, Jun Tang, Wei Chen, Yang Gao, Yang He, Qiang Zhang, Qishan Ran, Fang Cao, Shengtao Yao
Glioma is the most frequently occuring primary brain tumor. Syndecan-1 (SDC1) expression is related to poor prognosis of numerous human malignancies including glioma. Syndecan binding protein (SDCBP) is an important partner for SDC1. The present study investigated whether SDC1 and SDCBP are expressed in glioma and their functions on glioma cell migration. An immunohistochemical assay revealed that SDC1 and SDCBP were expressed and were positively related to malignant level of glioma (SDC1, rs=0.576, P=0.001; SDCBP, rs=0...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29344149/hepatoma-derived-growth-factor-functions-as-an-unfavorable-prognostic-marker-of-human-gliomas
#11
Yang Yang, Shengru Liang, Yuqian Li, Fei Gao, Longlong Zheng, Shilai Tian, Pu Yang, Lihong Li
Hepatoma-derived growth factor (HDGF) regulates various cellular processes involved in the onset and development of tumors. To evaluate the role of HDGF in human gliomas, western blotting analysis, immunohistochemistry staining and reverse transcription-quantitative polymerase chain reaction were performed to detect HDGF protein and mRNA expression levels in glioma and intractable epileptic brain tissue. Various clinicopathological characteristics, including age, gender, World health Organization grade, HDGF expression level, Karnofsky performance Status (KPS) and Ki-67 index were obtained from medical records...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29343848/a-novel-protein-encoded-by-the-circular-form-of-the-shprh-gene-suppresses-glioma-tumorigenesis
#12
Maolei Zhang, Nunu Huang, Xuesong Yang, Jingyan Luo, Sheng Yan, Feizhe Xiao, Wenping Chen, Xinya Gao, Kun Zhao, Huangkai Zhou, Ziqiang Li, Liu Ming, Bo Xie, Nu Zhang
Circular RNAs (circRNAs) are recognized as functional non-coding transcripts in eukaryotic cells. Recent evidence has indicated that even though circRNAs are generally expressed at low levels, they may be involved in many physiological or pathological processes, such as gene regulation, tissue development and carcinogenesis. Although the 'microRNA sponge' function is well characterized, most circRNAs do not contain perfect trapping sites for microRNAs, which suggests the possibility that circRNAs have functions that have not yet been defined...
January 18, 2018: Oncogene
https://www.readbyqxmd.com/read/29343821/focal-hyperintensity-in-the-dorsal-brain-stem-of-patients-with-cerebellopontine-angle-tumor-a-high-resolution-3%C3%A2-t-mri-study
#13
Hirotaka Yamamoto, Atsushi Fujita, Taichiro Imahori, Takashi Sasayama, Kohkichi Hosoda, Ken-Ichi Nibu, Eiji Kohmura
Focal hyperintensity (FHI) in the dorsal brain stem on T2-weighted images of patients with cerebellopontine angle (CPA) tumor was thought to indicate degeneration of the vestibular nucleus and to be specific to vestibular schwannoma. The purpose of this study was to evaluate FHI by using high-resolution 3 Tesla magnetic resonance imaging (3 T MRI) and the relation to clinical characteristics. We retrospectively reviewed the clinical data and MRI of 45 patients with CPA tumors (34 vestibular schwannomas and 11 other tumors)...
January 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29343557/dicer1-and-associated-conditions-%C3%A2-identification-of-at-risk-individuals-and-recommended-surveillance-strategies
#14
Kris Ann P Schultz, Gretchen M Williams, Junne Kamihara, Douglas R Stewart, Anne K Harris, Andrew J Bauer, Joyce Turner, Rachana Shah, Katherine Schneider, Kami Wolfe Schneider, Ann Garrity Carr, Laura A Harney, Shari Baldinger, A Lindsay Frazier, Daniel Orbach, Dominik T Schneider, David Malkin, Louis P Dehner, Yoav H Messinger, Ashley Hill
Pathogenic germline DICER1 variants cause a hereditary cancer predisposition syndrome with a variety of manifestations. In addition to conferring increased cancer risks for pleuropulmonary blastoma (PPB) and ovarian sex cord-stromal tumors, particularly Sertoli-Leydig cell tumor, individuals with pathogenic germline DICER1 variants may also develop lung cysts, cystic nephroma, renal sarcoma and Wilms tumor, nodular hyperplasia of the thyroid, nasal chondromesenchymal hamartoma, ciliary body medulloepithelioma, genitourinary embryonal rhabdomyosarcoma and brain tumors including pineoblastoma and pituitary blastoma...
January 17, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29343521/t-type-ca2-channels-t-for-targetable
#15
REVIEW
Marta C Sallán, Anna Visa, Soni Shaikh, Mireia Nàger, Judit Herreros, Carles Cantí
In the past decade, T-type Ca2+ channels (TTCC) have been unveiled as key regulators of cancer cell biology and thus have been proposed as chemotherapeutic targets. Indeed, in vitro and in vivo studies indicate that TTCC pharmacologic blockers have a negative impact on the viability of cancer cells and reduce tumor size, respectively. Consequently mibefradil, a TTCC blocker approved in 1997 as an antihypertensive agent but withdrawn in 1998 because of drug-drug interactions, was granted 10 years later the orphan drug status by the FDA to investigate its efficacy against brain, ovary, and pancreatic cancer...
January 17, 2018: Cancer Research
https://www.readbyqxmd.com/read/29342193/analysis-of-copy-number-loss-of-the-erbb4-receptor-tyrosine-kinase-in-glioblastoma
#16
DeAnalisa C Jones, Adriana Scanteianu, Matthew DiStefano, Mehdi Bouhaddou, Marc R Birtwistle
Current treatments for glioblastoma multiforme (GBM)-an aggressive form of brain cancer-are minimally effective and yield a median survival of 14.6 months and a two-year survival rate of 30%. Given the severity of GBM and the limitations of its treatment, there is a need for the discovery of novel drug targets for GBM and more personalized treatment approaches based on the characteristics of an individual's tumor. Most receptor tyrosine kinases-such as EGFR-act as oncogenes, but publicly available data from the Cancer Cell Line Encyclopedia (CCLE) indicates copy number loss in the ERBB4 RTK gene across dozens of GBM cell lines, suggesting a potential tumor suppressor role...
2018: PloS One
https://www.readbyqxmd.com/read/29341330/real-time-and-high-resolution-bioimaging-with-bright-aggregation-induced-emission-dots-in-short-wave-infrared-region
#17
Ji Qi, Chaowei Sun, Abudureheman Zebibula, Hequn Zhang, Ryan T K Kwok, Xinyuan Zhao, Wang Xi, Jacky W Y Lam, Jun Qian, Ben Zhong Tang
Fluorescence imaging in the spectral region beyond the conventional near-infrared biological window (700-900 nm) can theoretically afford high resolution and deep tissue penetration. Although some efforts have been devoted to developing a short-wave infrared (SWIR; 900-1700 nm) imaging modality in the past decade, long-wavelength biomedical imaging is still suboptimal owing to the unsatisfactory materials properties of SWIR fluorophores. Taking advantage of organic dots based on an aggregation-induced emission luminogen (AIEgen), herein microscopic vasculature imaging of brain and tumor is reported in living mice in the SWIR spectral region...
January 17, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29341112/conditionally-reprogrammed-cells-crc-methodology-does-not-allow-the-in-vitro-expansion-of-patient-derived-primary-and-metastatic-lung-cancer-cells
#18
Giovanni Sette, Valentina Salvati, Ilenia Giordani, Emanuela Pillozzi, Denise Quacquarini, Enrico Duranti, Francesca De Nicola, Matteo Pallocca, Maurizio Fanciulli, Mario Falchi, Roberto Pallini, Ruggero De Maria, Adriana Eramo
Availability of tumor and non-tumor patient-derived models would promote the development of more effective therapeutics for Non Small Cell Lung Cancer (NSCLC). Recently, conditionally reprogrammed cells (CRC) methodology demonstrated exceptional potential for the expansion of epithelial cells from patient tissues. However, the possibility to expand patient-derived lung cancer cells using CRC protocols is controversial. Here, we used CRC approach to expand cells from non-tumoral and tumor biopsies of patients with primary or metastatic NSCLC as well as pulmonary metastases of colorectal or breast cancers...
January 17, 2018: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29341001/dynamic-susceptibility-contrast-mri-in-small-animals
#19
Pilar López-Larrubia
The use of magnetic resonance imaging (MRI) for studying the cerebral perfusion mechanisms is well proved and contrasted in the clinical and research setups. This methodology is a promising tool in assessing numerous brain diseases like intracranial tumors, neurodegeneration processes, mental disorders, injuries and so on. In the preclinical environment, perfusion MRI offers a powerful resource for characterizing pathological models and specially identifying biomarkers to monitor the illness and validate the efficacy of therapeutical approaches...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29340361/a-curcumin-loaded-polymeric-micelle-as-a-carrier-of-a-microrna-21-antisense-oligonucleotide-for-enhanced-anti-tumor-effects-in-a-glioblastoma-animal-model
#20
Xiaonan Tan, Gyeungyun Kim, Dahee Lee, Jungju Oh, Minkyung Kim, Chunxian Piao, Jaewon Lee, Min Sang Lee, Ji Hoon Jeong, Minhyung Lee
A glioblastoma is a common primary brain tumor that expresses microRNA-21 (miR-21), which inhibits the expression of pro-apoptotic genes such as phosphatase and tensin homologue (PTEN) and programmed cell death 4 (PDCD4). Therefore, an antisense-oligonucleotide against miR-21 (miR21ASO) could have therapeutic effects for glioblastomas. In this study, curcumin was loaded into deoxycholic acid-conjugated polyethylenimine (DP) micelles. The curcumin-loaded DP micelle (DP-Cur) was evaluated as a carrier for the combined delivery of curcumin and miR21ASO...
January 17, 2018: Biomaterials Science
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