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https://www.readbyqxmd.com/read/28651379/klf4-is-a-tumor-suppressor-in-anaplastic-meningioma-stem-like-cells-and-human-meningiomas
#1
Hailiang Tang, Xuanchun Wang, Hongda Zhu, Lingyang Hua, Jingrun Li, Qing Xie, Xiancheng Chen, Tao Zhang, Ye Gong
Meningiomas are the most common primary tumors in central nervous system. While recent studies have revealed genetic clues to lower grade human meningiomas, the molecular determinants driving the progression and recurrence of anaplastic meningioma, the most malignant subtype with a low prevalence but high morbidity, are still poorly understood. It has been proposed that high recurrence rates of malignant meningiomas are linked to cancer stem cells. Indeed, tumor stem-like cells have been isolated from various meningioma subtypes, but never been obtained from anaplastic meningioma...
June 26, 2017: Journal of Molecular Cell Biology
https://www.readbyqxmd.com/read/28651374/cd70-a-novel-target-of-car-t-cell-therapy-for-gliomas
#2
Linchun Jin, Haitao Ge, Yu Long, Changlin Yang, Yifan Emily Chang, Luyan Mu, Elias J Sayour, Gabriel De Leon, Qiong J Wang, James C Yang, Paul S Kubilis, Hongbo Bao, Songsong Xia, Dunyue Lu, Yingjun Kong, Li Hu, Yujiao Shang, Chencheng Jiang, Jing Nie, Shimin Li, Yunhe Gu, Jiahang Sun, Duane A Mitchell, Zhiguo Lin, Jianping Huang
Background: Cancer immunotherapy represents a promising treatment approach for malignant-gliomas, but is hampered by the limited number of ubiquitously expressed tumor antigens and the profoundly immunosuppressive tumor microenvironment. We identified CD70 as a novel immunosuppressive ligand and glioma target. Methods: Normal tissues derived from 52 different organs, and primary and recurrent low-grade gliomas (LGGs) and glioblastomas (GBMs) were thoroughly evaluated for CD70 gene and protein expression...
June 23, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28651234/microrna-493-suppresses-hepatocellular-carcinoma-tumorigenesis-through-down-regulation-of-anthrax-toxin-receptor-1-antxr1-and-r-spondin-2-rspo2
#3
Yuqiang Xu, Kuikui Ge, Junhao Lu, Jinjiang Huang, Wei Wei, Qingshan Huang
Hepatocellular carcinoma (HCC) is known as a highly prevalent cancer with a poor prognosis and short survival time, despite intensive research and clinical efforts. Increasing numbers of studies have reported that microRNAs are involved in the malignant behavior of hepatocellular carcinoma cells via directly targeting multiple oncogenes or tumor suppressors. Here, we report that the expression of microRNA-493 (miR-493) is decreased in HCC cell lines and in tumor tissues. Overexpression of miR-493 in HCC cells dramatically inhibited cell proliferation and colony-formation in vitro and inhibited tumor formation of HCC cell xenografts in vivo...
June 23, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28651231/evaluation-of-in-vitro-anticancer-activity-of-1-8-cineole-containing-n-hexane-extract-of-callistemon-citrinus-curtis-skeels-plant-and-its-apoptotic-potential
#4
Sowndarya Sampath, Vidhya Veeramani, Gopal Shankar Krishnakumar, Udhayakumar Sivalingam, Suguna Lakshmi Madurai, Rose Chellan
Plants are the source of a variety of secondary metabolites, which are often used in the anticancer activity. Discovering new anticancer drug from herbal source is more important in both biological and pharmacological activities. Hence, the objective of this study is to identify the anticancer agent in Callistemon citrinus (Curtis) Skeels (CC) for the treatment of cancer. Very recently we have reported an increased antioxidant activity in the ethanolic and methanolic extracts (EE and ME) of CC but significantly reduced activity (rather increased cytotoxicity), in the n-hexane extract (HE)...
June 23, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28651074/chimeric-antigen-receptor-engineered-natural-killer-and-natural-killer-t-cells-for-cancer-immunotherapy
#5
REVIEW
Dominique Bollino, Tonya J Webb
Natural killer (NK) cells of the innate immune system and NK T (NKT) cells, which have roles in both the innate and adaptive responses, are unique lymphocyte subsets that have similarities in their functions and phenotypes. Both cell types can rapidly respond to the presence of tumor cells and participate in immune surveillance and antitumor immune responses. This has incited interest in the development of novel cancer therapeutics based on NK and NKT cell manipulation. Chimeric antigen receptors (CARs), generated through the fusion of an antigen-binding region of a monoclonal antibody or other ligand to intracellular signaling domains, can enhance lymphocyte targeting and activation toward diverse malignancies...
June 9, 2017: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/28651018/meta-analysis-of-mirna-expression-profiles-for-prostate-cancer-recurrence-following-radical-prostatectomy
#6
Elnaz Pashaei, Elham Pashaei, Maryam Ahmady, Mustafa Ozen, Nizamettin Aydin
BACKGROUND: Prostate cancer (PCa) is a leading reason of death in men and the most diagnosed malignancies in the western countries at the present time. After radical prostatectomy (RP), nearly 30% of men develop clinical recurrence with high serum prostate-specific antigen levels. An important challenge in PCa research is to identify effective predictors of tumor recurrence. The molecular alterations in microRNAs are associated with PCa initiation and progression. Several miRNA microarray studies have been conducted in recurrence PCa, but the results vary among different studies...
2017: PloS One
https://www.readbyqxmd.com/read/28651012/the-economic-burden-of-human-papillomavirus-related-precancers-and-cancers-in-sweden
#7
Ellinor Östensson, Maria Silfverschiöld, Lennart Greiff, Christine Asciutto, Johan Wennerberg, Marie-Louise Lydryp, Ulf Håkansson, Pär Sparén, Christer Borgfeldt
BACKGROUND: High-risk (HR) human papillomavirus (HPV) infection is an established cause of malignant disease. We used a societal perspective to estimate the cost of HR HPV-related cervical, vulvar, vaginal, anal, and penile precancer and cancer, and oropharyngeal cancer in Sweden in 2006, 1 year before HPV vaccination became available in the country. MATERIALS AND METHODS: This prevalence-based cost-of-illness study used diagnosis-specific data from national registries to determine the number of HR HPV-related precancers and cancers...
2017: PloS One
https://www.readbyqxmd.com/read/28650895/asymptomatic-microscopic-hematuria-in-women
#8
(no author information available yet)
Asymptomatic microscopic hematuria is an important clinical sign of urinary tract malignancy. Asymptomatic microscopic hematuria has been variably defined over the years. In addition, the evidence primarily is based on data from male patients. However, whether the patient is a man or a woman influences the differential diagnosis of asymptomatic microscopic hematuria, and the risk of urinary tract malignancy (bladder, ureter, and kidney) is significantly less in women than in men. Among women, being older than 60 years, having a history of smoking, and having gross hematuria are the strongest predictors of urologic cancer...
July 2017: Female Pelvic Medicine & Reconstructive Surgery
https://www.readbyqxmd.com/read/28650886/elevated-fdg-activity-in-the-nonpneumatized-sphenoid-bone-in-an-infant
#9
Yin Jie Chen, Nelleke Tolboom, Lisa J States, Hongming Zhuang
A 7-month-old boy with malignant rhabdoid tumor of the right lateral neck, status post resection and chemotherapy, underwent FDG PET/CT for restaging. The images showed diffuse increased activity in the spleen and in the bone marrow of the appendicular bones and the spine, which is related to hematopoietin administered after chemotherapy. The images also revealed intense activity in the region of sphenoid bone, which is not a common region to have elevated FDG activity. The subsequent MRI scan showed that this activity was due to not-yet-converted red marrow in the sphenoid bone in this pediatric patient...
June 24, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28650885/aggressive-imaging-features-in-a-malignant-pheochromocytoma-with-a-novel-mutation-of-the-sdhb-gene
#10
Soon-Ah Park, Dae Ho Lee, Hun Soo Kim
We describe a 15-year-old boy with a huge bilateral adrenal pheochromocytoma that had a de novo germline mutation in the succinate dehydrogenase subunit B (SDHB) gene. F-FDG PET/CT revealed bilateral metabolically active large masses in the adrenal glands and the activated brown adipose tissues. The I-MIBG scintigraphic findings revealed only a mild accumulation of MIBG in the right adrenal mass, but a high uptake in the left adrenal mass. Thus, F-FDG PET/CT imaging may be more effective than I-MIBG scintigraphy for the evaluation of pheochromocytomas that are associated with highly malignant characteristics resulting from mutations of the SDHB gene...
June 24, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28650658/a-potent-selective-and-cell-active-protein-arginine-methyltransferase-5-prmt5-inhibitor-developed-by-structure-based-virtual-screening-and-hit-optimization
#11
Ruifeng Mao, Jingwei Shao, Kongkai Zhu, Yuanyuan Zhang, Hong Ding, Chenhua Zhang, Zhe Shi, Hualiang Jiang, De-Qun Sun, Wenhu Duan, Cheng Luo
PRMT5 plays important roles in diverse cellular processes and is upregulated in several human malignancies. Besides, PRMT5 has been validated as anti-cancer target in mantle cell lymphoma. In this study, we found a potent and selective PRMT5 inhibitor by performing structure-based virtual screening and hit optimization. The identified compound 17 (IC50 = 0.33 μM) exhibited a broad selectivity against a panel of other methyltransferases. The direct binding of 17 to PRMT5 was validated by surface plasmon resonance experiments, with a Kd of 0...
June 26, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28650587/the-value-of-n-staging-with-the-positive-lymph-node-ratio-and-splenectomy-for-remnant-gastric-cancer-a-multicenter-retrospective-study
#12
Sang-Yong Son, Seong-Ho Kong, Hye Seong Ahn, Young Suk Park, Sang-Hoon Ahn, Yun-Suhk Suh, Do Joong Park, Hyuk-Joon Lee, Hyung-Ho Kim, Han-Kwang Yang
BACKGROUND: Surgery for remnant gastric cancer (RGC) frequently fails to obtain the >15 lymph nodes necessary for tumor-node-metastasis (TNM) staging. We aimed to evaluate the utility of the recently developed tumor-ratio-metastasis (TRM) staging system. We also examined the pattern of lymph node metastasis and the role of prophylactic splenectomy in RGC. METHODS: Between May 2003 and December 2012, data from 170 patients who underwent surgery for RGC were retrospectively analyzed...
June 26, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28650579/reconstruction-using-a-perforator-free-flap-after-malignant-melanoma-resection-of-the-ankle-and-foot
#13
Young C Suh, Hyunsuk P Suh, Jong S Lee, Jee S Chang, Joon P Jp Hong
BACKGROUND: Surgical excision with adequate margin is the treatment of choice to provide best chance for survival. However, tumors located on distal lower extremity may require reconstruction to salvage the limb which may affect prognosis and quality of life. This retrospective study aimed to evaluate the effect of free flap on overall outcomes of patients with primary malignant melanoma located on the foot and ankle. METHODS: Patients with primary malignant melanoma on the leg and foot who required free flap coverage between August 2005 and January 2014 were evaluated...
June 26, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28650570/perioperative-braf-inhibitors-in-locally-advanced-stage-iii-melanoma
#14
Douglas Zippel, Gal Markel, Roni Shapira-Frommer, Guy Ben-Betzalel, David Goitein, Eytan Ben-Ami, Aviram Nissan, Jacob Schachter, Schlomo Schneebaum
BACKGROUND AND OBJECTIVES: Stage III malignant melanoma is a heterogeneous disease where those cases deemed marginally resectable or irresecatble are frequently incurable by surgery alone. Targeted therapy takes advantage of the high incidence of BRAF mutations in melanomas, most notably the V600E mutation. These agents have rarely been used in a neoadjuvant setting prior to surgery. METHODS: Thirteen consecutive patients with confirmed BRAF(V600E) regionally advanced melanoma deemed marginally resectable or irrresectable, were treated with BRAF inhibiting agents, prior to undergoing surgery...
June 26, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28650560/uncovering-the-role-of-brain-derived-neurotrophic-factor-bdnf-trkb-signaling-in-head-and-neck-malignancies
#15
REVIEW
Juliana Kern de Moraes, Vivian Petersen Wagner, Felipe Paiva Fonseca, Pablo Agustin Vargas, Caroline Brunetto de Farias, Rafael Roesler, Manoela Domingues Martins
Brain-derived neurotrophic factor (BDNF) is a member of the neurotrophin family of growth factors that was first known as responsible for sustain the growth, function and plasticity of neural cells. BDNF exerts its effects by binding to the tyrosine kinase receptor B (TrkB). The BDNF/TrkB axis has been reported to be overexpressed in several neurogenic and non-neurogenic tumors. Its higher expression was associated with a poor prognosis to patients affected by different human malignancies, tumor growth, invasion and metastasis; epithelial-mesenchymal transition (EMT) and resistance to chemotherapy...
June 26, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/28650524/us-guided-core-needle-biopsy-versus-us-guided-fine-needle-aspiration-of-suspicious-cervical-lymph-nodes-for-staging-workup-of-non-head-and-neck-malignancies-a-propensity-score-matching-study
#16
Kyeong Hwa Ryu, Jeong Hyun Lee, Seung Won Jang, Hwa Jung Kim, Ji Ye Lee, Sae Rom Chung, Mi Sun Chung, Hyo Weon Kim, Young Jun Choi, Jung Hwan Baek
BACKGROUND AND OBJECTIVES: To compare US-guided core-needle biopsy (USCNB) and US-guided fine-needle aspiration (USFNA) of suspicious cervical lymph nodes for staging workup of malignancies in locations other than the head and neck using propensity score matching (PSM). METHODS: This retrospective cohort study included 108 patients who underwent USFNA and 1058 who underwent USCNB for suspicious cervical lymph nodes detected by imaging modalities during the staging workup for malignancies located in regions other than the head and neck...
June 26, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28650474/an-activating-mutation-of-gnb1-is-associated-with-resistance-to-tyrosine-kinase-inhibitors-in-etv6-abl1-positive-leukemia
#17
O Zimmermannova, E Doktorova, J Stuchly, V Kanderova, D Kuzilkova, H Strnad, J Starkova, M Alberich-Jorda, J H F Falkenburg, J Trka, J Petrak, J Zuna, M Zaliova
Leukemias harboring the ETV6-ABL1 fusion represent a rare subset of hematological malignancies with unfavorable outcomes. The constitutively active chimeric Etv6-Abl1 tyrosine kinase can be specifically inhibited by tyrosine kinase inhibitors (TKIs). Although TKIs represent an important therapeutic tool, so far, the mechanism underlying the potential TKI resistance in ETV6-ABL1-positive malignancies has not been studied in detail. To address this issue, we established a TKI-resistant ETV6-ABL1-positive leukemic cell line through long-term exposure to imatinib...
June 26, 2017: Oncogene
https://www.readbyqxmd.com/read/28650469/a-compartmentalized-phosphoinositide-signaling-axis-at-cilia-is-regulated-by-inpp5e-to-maintain-cilia-and-promote-sonic-hedgehog-medulloblastoma
#18
S E Conduit, V Ramaswamy, M Remke, D N Watkins, B J Wainwright, M D Taylor, C A Mitchell, J M Dyson
Sonic Hedgehog (SHH) signaling at primary cilia drives the proliferation and progression of a subset of medulloblastomas, the most common malignant paediatric brain tumor. Severe side effects associated with conventional treatments and resistance to targeted therapies has led to the need for new strategies. SHH signaling is dependent on primary cilia for signal transduction suggesting the potential for cilia destabilizing mechanisms as a therapeutic target. INPP5E is an inositol polyphosphate 5-phosphatase that hydrolyses PtdIns(4,5)P2 and more potently, the phosphoinositide (PI) 3-kinase product PtdIns(3,4,5)P3...
June 26, 2017: Oncogene
https://www.readbyqxmd.com/read/28650451/inability-to-work-and-need-for-disability-pension-among-long-term-survivors-of-hematopoietic-stem-cell-transplantation
#19
A Tichelli, S Gerull, A Holbro, A Buser, G Nair, M Medinger, D Heim, J P Halter, J R Passweg
Return to work is critical goal following HSCT. However, late effects may impede return to normal activity after HSCT. In the case of inability to work, patients may need a work disability pension to ensure a reasonable livelihood. This study evaluated inability to work and need for disability pension among long-term survivors and analyzed possible determinants of need for social support. This retrospective, single-center study included all HSCT patients surviving ⩾5 years seen at the outpatient clinic between January 2013 and August 2015...
June 26, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28650445/a-distinct-function-of-the-retinoblastoma-protein-in-the-control-of-lipid-composition-identified-by-lipidomic-profiling
#20
H Muranaka, A Hayashi, K Minami, S Kitajima, S Kohno, Y Nishimoto, N Nagatani, M Suzuki, L A N Kulathunga, N Sasaki, N Okada, T Matsuzaka, H Shimano, H Tada, C Takahashi
Here, by combining lipidomics with transcriptome analysis, we demonstrate that Rb depletion in mouse embryonic fibroblastss induces significant alterations in their lipid composition. We discovered that Rb depletion induced increase in lysophosphatidylserine, diacylglycerol (DAG), fatty acid (FA), acylcarnitine, phosphatidylcholine (PC), arachidonoyl ethanolamine, and decrease in phosphatidylglycerol, monoacylglycerol, without change in total lipid per protein levels. Analysis of the acyl chain composition of DAG, PC and phosphatidylserine revealed increase of saturated and mono-unsaturated acyl chains with specific carbon chain length...
June 26, 2017: Oncogenesis
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