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https://www.readbyqxmd.com/read/29329006/ongoing-unmet-needs-in-treating-estrogen-receptor-positive-her2-negative-metastatic-breast-cancer
#1
REVIEW
Gül A Başaran, Chris Twelves, Véronique Diéras, Javier Cortés, Ahmad Awada
Estrogen receptor-positive (ER+)/human epidermal growth factor receptor 2 negative (HER2-) advanced or metastatic breast cancer (MBC) is the most common MBC subtype and currently remains incurable, with a median overall survival of 24.8 months (95% confidence interval, 21.3-30.3). Common sites of metastases are bone, viscera, and brain, causing significant symptoms that negatively affect patient functioning, quality of life (QoL), and work productivity. Guidelines state that endocrine therapy (ET) is preferable to chemotherapy as first-line treatment for patients with ER+ MBC, regardless of limited visceral metastases, unless rapid tumor response is required or ET resistance is suspected...
December 6, 2017: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/29325248/-survival-of-patients-with-primary-central-nervous-system-diffuse-large-b-cell-lymphoma-impact-of-gene-aberrations-and-protein-overexpression-of-bcl-2-and-c-myc-and-selection-of-chemotherapy-regimens
#2
W J Yin, X Zhu, H Y Yang, W Y Sun, M J Wu
Objective: To investigate the impact of clinicopathological features, gene rearrangements and protein expression of bcl-6, bcl-2, C-MYC and chemotherapy regime on the prognosis of patients with primary central nervous system diffuse large B-cell lymphoma (PCNS-DLBCL). Methods: Thirty-three cases of PCNS-DLBCL diagnosed from January 2006 to December 2016 at Zhejiang Cancer Hospital were collected. The expression of CD10, bcl-6, bcl-2, MUM1 and MYC were detected by immunohistochemical staining (IHC). The presence of EB virus was detected by in situ hybridization(EBER)...
January 8, 2018: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29320407/biodistribution-and-clearance-of-stable-superparamagnetic-maghemite-iron-oxide-nanoparticles-in-mice-following-intraperitoneal-administration
#3
Binh T T Pham, Emily K Colvin, Nguyen T H Pham, Byung J Kim, Emily S Fuller, Elizabeth A Moon, Raphael Barbey, Samuel Yuen, Barry H Rickman, Nicole S Bryce, Stephanie Bickley, Marcel Tanudji, Stephen K Jones, Viive M Howell, Brian S Hawkett
Nanomedicine is an emerging field with great potential in disease theranostics. We generated sterically stabilized superparamagnetic iron oxide nanoparticles (s-SPIONs) with average core diameters of 10 and 25 nm and determined the in vivo biodistribution and clearance profiles. Healthy nude mice underwent an intraperitoneal injection of these s-SPIONs at a dose of 90 mg Fe/kg body weight. Tissue iron biodistribution was monitored by atomic absorption spectroscopy and Prussian blue staining. Histopathological examination was performed to assess tissue toxicity...
January 10, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29312541/energy-metabolism-in-glioblastoma-stem-cells-ppar%C3%AE-a-metabolic-adaptor-to-intratumoral-microenvironment
#4
Alessia Fidoamore, Loredana Cristiano, Chiara Laezza, Renato Galzio, Elisabetta Benedetti, Benedetta Cinque, Andrea Antonosante, Michele d'Angelo, Vanessa Castelli, Maria Grazia Cifone, Rodolfo Ippoliti, Antonio Giordano, Annamaria Cimini
Glioblastoma (GB), the most-common cancer in the adult brain, despite surgery and radio/ chemotherapy, is to date almost incurable. Many hypoxic tumors, including GB, show metabolic reprogramming to sustain uncontrolled proliferation, hypoxic conditions and angiogenesis. Peroxisome Proliferator-activated Receptors (PPAR), particularly the α isotype, have been involved in the control of energetic metabolism. Herein, we characterized patient-derived GB neurospheres focusing on their energetic metabolism and PPARα expression...
December 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29301833/establishing-a-preclinical-multidisciplinary-board-for-brain-tumors
#5
Birgit Nimmervoll, Nidal Boulos, Brandon M Bianski, Jason Dapper, Michael DeCuypere, Anang A Shelat, Sabrina Terranova, Hope Elizabeth Terhune, Amar Gajjar, Yogesh T Patel, Burgess B Freeman, Arzu Onar-Thomas, Clinton F Stewart, Martine F Roussel, R Kiplin Guy, Thomas E Merchant, Christopher Calabrese, Karen D Wright, Richard J Gilbertson
PURPOSE: Curing all children with brain tumors will require an understanding of how each subtype responds to conventional treatments and how best to combine existing and novel therapies.  It is extremely challenging to acquire this knowledge in the clinic alone, especially among patients with rare tumors.  Therefore, we developed a preclinical brain tumor platform to test combinations of conventional and novel therapies in a manner that closely recapitulates clinic trials.  Experimental Design: A multidisciplinary team was established to design and conduct neurosurgical, fractionated radiotherapy and chemotherapy studies, alone or in combination, in accurate mouse models of supratentorial ependymoma (SEP) subtypes and choroid plexus carcinoma (CPC)...
January 4, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29291003/pseudogenes-of-annexin-a2-novel-prognosis-biomarkers-for-diffuse-gliomas
#6
Shuang Li, Hecun Zou, Ying-Ying Shao, Ying Mei, Yu Cheng, Dong-Li Hu, Zhi-Rong Tan, Hong-Hao Zhou
Diffuse gliomas is a kind of common malignant primary brain tumor. Pseudogenes have multilayered biological function in the progression of human cancers. In this study, Differentially Expressed Pseudogenes (DEPs) between glioblastomas and non-tumor controls were found by bioinformatics analysis, of which the annexin A2 pseudogenes (ANXA2P1, ANXA2P2 and ANXA2P3) were significantly up-regulated, along with the parent gene annexin A2 (ANXA2). Among four glioblastoma subtypes, ANXA2P1 and ANXA2P2 were preferentially expressed in mesenchymal subtype and less expressed in proneural subtype...
December 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/29288366/de-novo-metastasis-in-breast-cancer-occurrence-and-overall-survival-stratified-by-molecular-subtype
#7
David J Press, Megan E Miller, Erik Liederbach, Katherine Yao, Dezheng Huo
Breast cancer molecular subtypes, categorized jointly by hormone receptors (HR) and human epidermal growth factor-2 (HER2), are utilized to guide systemic therapy. We hypothesized distinct patterns of de novo metastasis and overall survival by molecular subtype using a retrospective cohort of 399,772 women in the National Cancer Database diagnosed with first primary invasive breast cancer between 2010 and 2014, of whom 13,924 were diagnosed with de novo metastasis from 2010 to 2013 and had follow up data. The relationship of molecular subtype with patient and tumor characteristics, including site of de novo metastasis, were examined using Chi-squared tests...
December 29, 2017: Clinical & Experimental Metastasis
https://www.readbyqxmd.com/read/29285383/effect-of-o6-methylguanine-dna-methyltransferase-methylation-in-medulloblastoma
#8
Tomoko Kurimoto, Akihide Kondo, Ikuko Ogino, Junya Fujimura, Atsushi Arakawa, Hajime Arai, Toshiaki Shimizu
Medulloblastoma is a highly malignant brain tumor that predominately affects children and requires multimodal treatment, including chemotherapy with alkylating agents. O6-methylguanine-DNA methyltransferase (MGMT) is a DNA repair enzyme that plays an important role in tumor resistance to alkylating agents. Recent studies demonstrated that MGMT promoter methylation suppresses the expression of MGMT and is associated with favorable outcomes of malignant glioma patients. However, the MGMT methylation status and its prognostic impact on medulloblastoma have not been fully elucidated to date...
December 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/29284526/postoperative-extracranial-metastasis-from-glioblastoma-a-case-report-and-review-of-the-literature
#9
Wenjiao Wu, Dequan Zhong, Zhan Zhao, Wentao Wang, Jun Li, Wei Zhang
BACKGROUND: Glioblastoma is the most common primary malignant brain tumor. Extraneural metastases are rarely reported in the literature. CASE PRESENTATION: We report a case of a 38-year-old patient who was diagnosed with glioblastoma in 2015. Four months after surgery, local relapse was found and the patient received a second surgery. After another 4 months, we found a hard mass in the right posterior neck when she admitted to our department for fourth cycle of adjuvant chemotherapy...
December 29, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29282720/revealing-the-glioma-cancer-stem-cell-interactome-one-niche-at-a-time
#10
Daniel J Silver, Justin D Lathia
Glioblastoma cancer stem cells (CSCs) are insidious. They extensively infiltrate brain tissue, resist radio- and chemotherapy, and are thought to represent the ultimate drivers of disease progression. New research has identified CD109, a GPI-anchored protein, on a population of perivascular CSCs. Interrogation of primary human tumor tissue suggests a role for CD109-expressing CSCs in the progression from low- to high-grade glioma, and animal modeling reveals a critical role for CD109 in the maintenance of the GBM CSC phenotype...
December 27, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/29281678/the-natural-compound-jatrophone-interferes-with-wnt-%C3%AE-catenin-signaling-and-inhibits-proliferation-and-emt-in-human-triple-negative-breast-cancer
#11
Iram Fatima, Ikbale El-Ayachi, Ling Taotao, M Angeles Lillo, Raya Krutilina, Tiffany N Seagroves, Tomasz W Radaszkiewicz, Miroslav Hutnan, Vitezslav Bryja, Susan A Krum, Fatima Rivas, Gustavo A Miranda-Carboni
Metastatic breast cancer is the leading cause of worldwide cancer-related deaths among women. Triple negative breast cancers (TNBC) are highly metastatic and are devoid of estrogen receptor (ER), progesterone receptor (PR) and human epidermal growth factor receptor 2 (HER2) amplification. TNBCs are unresponsive to Herceptin and/or anti-estrogen therapies and too often become highly chemoresistant when exposed to standard chemotherapy. TNBCs frequently metastasize to the lung and brain. We have previously shown that TNBCs are active for oncogenic Wnt10b/β-catenin signaling and that WNT10B ligand and its downstream target HMGA2 are predictive of poorer outcomes and are strongly associated with chemoresistant TNBC metastatic disease...
2017: PloS One
https://www.readbyqxmd.com/read/29279695/undiagnosed-esophageal-adenocarcinoma-presenting-as-multiple-brain-metastases
#12
Vincent Grzywacz, Ernie Balcueva
Brain metastases from gastrointestinal malignancies are exceedingly rare occurrences that carry a very poor prognosis. This holds especially true in cases where brain metastases from esophageal primaries are the initial presentation of a previously unidentified gastrointestinal malignancy. Our patient, a 60-year-old male with a past history of a right temporal teratoma, family history of breast cancer, and no smoking history, presented with a chief complaint of recurrent headaches. His history of present illness and physical examination included a two-month history of frontal headache, progressive fatigue, and unintentional weight loss...
September 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/29276417/bevacizumab-in-the-treatment-of-nsclc-patient-selection-and-perspectives
#13
REVIEW
Alessia E Russo, Domenico Priolo, Giovanna Antonelli, Massimo Libra, James A McCubrey, Francesco Ferraù
Non-small-cell lung cancer (NSCLC) represents about 85% of all lung cancers, and more than half of NSCLCs are diagnosed at an advanced stage. Chemotherapy has reached a plateau in the overall survival curve of about 10 months. Therefore, in last decade novel targeted approaches have been developed to extend survival of these patients, including antiangiogenic treatment. Vascular endothelial growth factor (VEGF) signaling pathway plays a dominant role in stimulating angiogenesis, which is the main process promoting tumor growth and metastasis...
2017: Lung Cancer: Targets and Therapy
https://www.readbyqxmd.com/read/29261148/advances-in-brain-tumor-surgery-for-glioblastoma-in-adults
#14
REVIEW
Montserrat Lara-Velazquez, Rawan Al-Kharboosh, Stephanie Jeanneret, Carla Vazquez-Ramos, Deependra Mahato, Daryoush Tavanaiepour, Gazanfar Rahmathulla, Alfredo Quinones-Hinojosa
Glioblastoma (GBM) is the most common primary intracranial neoplasia, and is characterized by its extremely poor prognosis. Despite maximum surgery, chemotherapy, and radiation, the histological heterogeneity of GBM makes total eradication impossible, due to residual cancer cells invading the parenchyma, which is not otherwise seen in radiographic images. Even with gross total resection, the heterogeneity and the dormant nature of brain tumor initiating cells allow for therapeutic evasion, contributing to its recurrence and malignant progression, and severely impacting survival...
December 20, 2017: Brain Sciences
https://www.readbyqxmd.com/read/29251326/isoliquiritigenin-inhibits-the-proliferation-and-induces-the-differentiation-of-human-glioma-stem-cells
#15
Yuliang Lin, Hongjun Sun, Ying Dang, Zhiyun Li
Glioma stem cells (GSCs) have been proven to be resistant to various therapeutic strategies, such as temozolomide chemotherapy and radiotherapy, leading to glioma recurrence. Isoliquiritigenin (ISL), a menber of the flavonoids isolated from liquorice has been found to be a potent stimulator of cell differentiation and has potential application for treating various types of cancer including human brain glioma. However, the antitumor activity of ISL on GSCs and the signaling pathway underlying its therapeutic effects are poorly understood...
February 2018: Oncology Reports
https://www.readbyqxmd.com/read/29250697/two-girl-patients-with-medulloblastoma-case-reports
#16
Laura Daniela Marinău, Cristina Elena Singer, Cristian Meşină, Elena Carmen Niculescu, Ileana Puiu, Ileana Octavia Petrescu, Cristiana Geormăneanu, Augustina Cornelia Enculescu, Daniela Elise Tache, Ştefana Oana Purcaru, Simona Răciulă, Cosmina Lucia Damian
In childhood, the most common type of brain tumors is medulloblastoma, a highly malignant primary brain tumor that is found in the cerebellum or posterior fossa. The tumor mass increases and generates obstructive hydrocephalus. Risk factors (that might be involved in some cases) include the genetic syndrome such as type 1 neurofibromatosis, exposure to ionizing radiation and Epstein-Barr virus. Medulloblastoma is associated with recessively inherited Turcot disease and with conditions as ataxia-telangiectasia syndrome in several cases...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/29250326/palliative-treatment-efficacy-of-glucose-inhibition-combined-with-chemotherapy-for-non-small-cell-lung-cancer-with-widespread-bone-and-brain-metastases-a-case-report
#17
Yongping Liu, Yaping Zhang, Xibao Mao, Qiufeng Qi, Ming Zhu, Changsong Zhang, Xuefeng Pan, Yang Ling
Otto Warburg observed in 1924 that cancer cells were dependent exclusively on glycolysis for the production of energy even in the presence of oxygen (the 'Warburg effect'). Consequently, cancer cells require ~19 times more glucose uptake to obtain equivalent amounts of energy as normal cells. The Warburg effect is the scientific basis for positron emission tomography (PET), which has markedly improved cancer detection. During chemotherapy, cancer cells may upregulate their expression of multi-drug resistance proteins and ultimately cause treatment failure...
December 2017: Biomedical Reports
https://www.readbyqxmd.com/read/29250175/atp7b-expression-in-human-glioblastoma-is-related-to-temozolomide-resistance
#18
F M Moinuddin, Hirofumi Hirano, Yoshinari Shinsato, Nayuta Higa, Kazunori Arita, Tatsuhiko Furukawa
Glioblastoma multiforme (GBM) is one of the most aggressive types of brain malignancy, with resistance to chemotherapy being a primary treatment obstacle. ATPase copper transporting β (ATP7B) is involved in multidrug resistance; however, its expression in GBM remains to be evaluated. In the present study, GBM specimens from 79 patients who underwent gross total tumor removal followed by concomitant temozolomide (TMZ) chemotherapy and radiotherapy were assessed immunohistochemically. The association between the overall survival times of patients and the expression of ATP7B in neoplastic cells was evaluated...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29248834/cerebellar-metastasis-of-gastrointestinal-stromal-tumor-a-case-report-and-review-of-the-literature
#19
Mohamed Badri, Mohamed Chabaane, Ghassen Gader, Kamel Bahri, Ihsen Zammel
INTRODUCTION: Intracranial metastases of gastro intestinal tumors are very rare. To the best of our knowledge only few cases were reported on the literature. CASE DESCRIPTION: We describe the case of 66-year-old male that presented with headache and vomiting. Physical examination found a kinetic cerebellar syndrome. Brain CT scan and MRI showed a right cerebellar tumor. Sub-occipital craniotomy was performed and the tumor was completely resected. Surgical outcomes were marked by the occurrence of an abdominal pain two days after brain surgery...
December 13, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29246647/anticancer-activity-of-osmium-vi-nitrido-complexes-in-patient-derived-glioblastoma-initiating-cells-and-in-vivo-mouse-models
#20
Gilles Berger, Korneel Grauwet, Hong Zhang, Amanda M Hussey, Michal O Nowicki, David I Wang, E Antonio Chiocca, Sean E Lawler, Stephen J Lippard
Glioblastoma is the most prevalent and lethal primary intrinsic brain tumor with a median patient survival of less than two years, even with the optimal standard of care, namely, surgical resection followed by radiotherapy with adjuvant temozolomide chemotherapy. Long-term survival is extremely rare and there is a tremendous need for novel GBM therapies. Following our prior reports on the anticancer activity of osmium(VI) nitrido compounds and their effectiveness against cancer initiating cells, we investigated the efficacy of Os(VI) on GBM initiating cells in vitro and in vivo...
December 12, 2017: Cancer Letters
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