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https://www.readbyqxmd.com/read/28207785/dna-methylation-of-the-fthl17-5-upstream-region-regulates-differential-fthl17-expression-in-lung-cancer-cells-and-germline-stem-cells
#1
Nana Aoki, Kentaro Mochizuki, Yasuhisa Matsui
The Ferritin heavy polypeptide-like 17 (Fthl17) gene is a member of the cancer/testis antigen gene family, and is preferentially expressed in cancer cells and in testis. Although DNA methylation has been linked to the regulation of human FTHL17 gene expression, detailed epigenetic regulation of its expression has not been investigated. To address this, we assessed the epigenetic regulation of murine Fthl17 gene expression in cancer cells and germ cells. Fthl17 was more highly expressed in testis, a murine lung cancer cell line, KLN205, and in germline stem cells (GSCs) than in normal lung tissues...
2017: PloS One
https://www.readbyqxmd.com/read/28207291/small-numbers-big-challenges-adolescent-and-young-adult-cancer-incidence-and-survival-in-new-zealand
#2
Kirsten R Ballantine, Heidi Watson, Scott Macfarlane, Mark Winstanley, Robin P Corbett, Ruth Spearing, Vladimir Stevanovic, Ma Yi, Michael J Sullivan
PURPOSE: This study was undertaken to determine cancer survival and describe the unique spectrum of cancers diagnosed among New Zealand's adolescents and young adult (AYA) population. METHODS: Registrations for 1606 15-24 year olds diagnosed with a new primary malignant tumor between 2000 and 2009 were obtained from the New Zealand Cancer Registry and classified according to AYA diagnostic group and subgroup, age, sex, and prioritized ethnicity. Age-standardized incidence rates (IRs) per million person years and 5-year relative survival ratios were calculated...
February 16, 2017: Journal of Adolescent and Young Adult Oncology
https://www.readbyqxmd.com/read/28206703/toxicological-evaluation-of-the-topoisomerase-inhibitor-etoposide-in-the-model-animal-caenorhabditis-elegans-and-3t3-l1-normal-murine-cells
#3
So Young Lee, Joo Yeon Kim, Yu-Jin Jung, Kyungsu Kang
Etoposide, a topoisomerase II inhibitor, has been widely used as a clinical anticancer drug to treat diverse cancer patients. Since not only rapidly dividing cancer cells but also the cells of normal human tissues and every living organism in environmental ecosystems have topoisomerases, it is crucial to study the toxicity of etoposide in other organisms in addition to cancer cells. In this study, we evaluated the toxicity of etoposide in both a soil nematode, Caenorhabditis elegans, and 3T3-L1 normal murine cells...
February 16, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/28202195/long-term-ototoxicity-in-women-after-cisplatin-treatment-for-ovarian-germ-cell-cancer
#4
Jakob Skalleberg, Olesya Solheim, Sophie D Fosså, Milada Cvancarova Småstuen, Terje Osnes, Per Ole M Gundersen, Marie Bunne
OBJECTIVE: Evaluate long-term cisplatin-induced ototoxicity in women treated for malignant ovarian germ cell tumors (MOGCT). METHODS: Seventy-four women treated for MOGCT in Norway (1980-2009) were analyzed: 41 had received cisplatin-based chemotherapy (CBCT) ("Cases") and 33 had no CBCT ("Controls"). Median follow-up was 15years. Hearing was assessed by pure tone audiometry and by the SCIN questionnaire. Air conduction thresholds were reported as absolute hearing thresholds and age-adjusted thresholds...
February 12, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28202048/chemotherapy-for-primary-mediastinal-yolk-sac-tumor-in-a-patient-undergoing-chronic-hemodialysis-a-case-report
#5
Haruki Hirakawa, Chiho Nakashima, Tomomi Nakamura, Masanori Masuda, Taro Funakoshi, Shunsaku Nakagawa, Takahiro Horimatsu, Kazuo Matsubara, Manabu Muto, Shinya Kimura, Naoko Sueoka-Aragane
BACKGROUND: The safety and efficacy of chemotherapy for patients undergoing concomitant hemodialysis have not been fully established and optimal doses of anti-cancer drugs and best timing of hemodialysis remains unclear. Although chemosensitive cancers, such as germ cell tumors, treated with chemotherapy should have sufficient dose intensity maintained to achieve the desired effect, many patients with cancer undergoing hemodialysis might be under-treated because the pharmacokinetics of anti-cancer drugs in such patients remains unknown...
February 16, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28199193/epigenetic-and-risk-factors-of-testicular-germ-cell-tumors-a-brief-review
#6
Daniel Adrian Landero-Huerta, Rosa Maria Vigueras-Villasenor, Emiy Yokoyama-Rebollar, Elena Arechaga-Ocampo, Julio Cesar Rojas-Castaneda, Francisco Jimenez-Trejo, Margarita Chavez-Saldana
Testicular germ cell cancer (TGCT) is the most common malignancy among young adult males, which has become important due to its increased incidence and mortality in the population worldwide. The etiology is multifactorial. Recent studies have shown some associations between the development of isolated TGCT and certain risk factors, such as exposure to endocrine disruptors, cryptorchidism, and family history of cancer, in order to identify the key pieces in carcinogenesis. Some of the most important findings in recent years is the association of different genes, such as c-KIT/KITLG, expression of the miR-371-373 cluster and protein expression as c-KIT and POU5F1 in the development of this neoplasia, and the identification of new molecular markers as TGFBR3 gene, identifying aberrant methylation patterns in promoter regions of several genes, expression of miR-1297 which regulates PTEN and protein expression as DMTR1...
March 1, 2017: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/28197987/effects-of-frutalin-on-early-follicle-morphology-ultrastructure-and-gene-expression-in-cultured-goat-ovarian-cortical-tissue
#7
Maria A A Soares, José J N Costa, Gisvani L Vasconcelos, Regislane P Ribeiro, José C Souza, André L C Silva, Robert Van den Hurk, José R V Silva
Frutalin is a galactose-binding lectin that has an irreversible cytotoxic effect on HeLa cervical cancer cells, by inducing apoptosis and inhibiting cell proliferation. It was previously shown that after in vitro incubation, frutalin is internalized into HeLa cells nucleus, which indicates that frutalin apoptosis-inducing activity might be linked with its nuclear localization. Considering that drugs commonly used for cancer treatment have a deleterious effect on germ cells, the aim of this study was to evaluate the effect of frutalin on the activation, survival, ultrastructure and gene expression in follicles cultured within ovarian tissue...
February 15, 2017: Histology and Histopathology
https://www.readbyqxmd.com/read/28191469/rna-binding-protein-dnd1-promotes-breast-cancer-apoptosis-by-stabilizing-the-bim-mrna-in-a-mir-221-binding-site
#8
Feng Cheng, Ying Pan, Yi-Min Lu, Lei Zhu, Shuzheng Chen
RNA-binding proteins (RBPs) and miRNAs are capable of controlling processes in normal development and cancer. Both of them could determine RNA transcripts fate from synthesis to decay. One such RBP, Dead end (Dnd1), is essential for regulating germ-cell viability and suppresses the germ-cell tumors development, yet how it exerts its functions in breast cancer has remained unresolved. The level of Dnd1 was detected in 21 cancerous tissues paired with neighboring normal tissues by qRT-PCR. We further annotated TCGA (The Cancer Genome Atlas) mRNA expression profiles and found that the expression of Dnd1 and Bim is positively correlated (p = 0...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28169231/palbociclib-a-new-hope-in-the-treatment-of-breast-cancer
#9
REVIEW
R Priyadharsini Palanisamy
Breast cancer being one of the common cancers has high morbidity and mortality. Despite the conventional treatment, the burden of the disease increases year after year. There is a need for newer drugs that target the different mechanisms in the pathogenesis. The interaction of cyclins with cyclin dependent kinases (CDKs) plays a major role in the abnormal cell cycle in cancer and it is considered to be an important target. Palbociclib is a CDK inhibitor currently approved for the treatment of breast cancer...
October 2016: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28166073/ovarian-tumors-pattern-of-histomorphological-types-a-10-years-study-in-a-tertiary-referral-center-and-review-of-literature
#10
A Ghosh, D Ghartimagar, S Thapa, B Sathian, R Narasimhan, O P Talwar
Background Ovarian cancer accounts for 6% of all cancers in females. Among cancers of female genital tract, the incidence of ovarian cancers ranks below only carcinoma of the cervix and the endometrium. Objective To find the frequency of different types of histomorphological types and their association with age, side and size distribution. Method This study is a hospital based retrospective study carried out in the Department of Pathology, Manipal Teaching Hospital over a time period from Jan. 2006 to Sep. 2015...
April 2016: Kathmandu University Medical Journal (KUMJ)
https://www.readbyqxmd.com/read/28156600/association-between-abdominal-adiposity-muscle-mass-and-metabolic-syndrome-in-survivors-of-testicular-germ-cell-cancer
#11
William Osai, Shi-Ming Tu, Lance C Pagliaro, Jeri Kim, Sai-Ching J Yeung
: 250 Background: Testicular germ cell tumor survivors (TGCTSs) contend with treatment side effects for decades after cure, and many have metabolic syndrome (MTS), a modifiable cardiometabolic risk factor. Because reliably predicting MTS could prompt interventionreducing risk, we analyzed clinical data and body composition in computed tomography (CT) scans to identify associations. METHODS: In a retrospective review of 196 TGCTSs treated at a single institution from 1970 to 2007, we collected patient (pt) demographics, clinical data, body fat composition measures, and evidence from CT scans from baseline through posttreatment...
October 9, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28154780/human-endogenous-retroviruses-and-cancer
#12
María Gonzalez-Cao, Paola Iduma, Niki Karachaliou, Mariacarmela Santarpia, Julià Blanco, Rafael Rosell
Human endogenous retroviruses (HERVs) are retroviruses that infected human genome millions of years ago and have persisted throughout human evolution. About 8% of our genome is composed of HERVs, most of which are nonfunctional because of epigenetic control or deactivating mutations. However, a correlation between HERVs and human cancer has been described and many tumors, such as melanoma, breast cancer, germ cell tumors, renal cancer or ovarian cancer, express HERV proteins, mainly HERV-K (HML6) and HERV-K (HML2)...
December 2016: Cancer Biology & Medicine
https://www.readbyqxmd.com/read/28153774/patterns-of-care-and-survival-outcomes-for-adolescent-and-young-adult-patients-with-testicular-seminoma-in-the-united-states-a-national-cancer-database-analysis
#13
William Stokes, Arya Amini, Paul D Maroni, Elizabeth R Kessler, Claire Stokes, Carrye R Cost, Brian S Greffe, Timothy P Garrington, Arthur K Liu, Nicholas G Cost
INTRODUCTION: Testicular germ cell tumors (GCTs) are the most common solid tumor among adolescent and young adult (AYA) males. AYA patients with GCTs most typically have non-seminoma compared with seminoma, and accordingly there are fewer data reported on the AYA experience with testicular seminoma. OBJECTIVE: To evaluate national trends in postoperative treatment and overall survival (OS) outcomes in testicular seminoma by age group, specifically comparing AYAs with older adults...
January 17, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28151756/recent-developments-in-the-management-of-germ-cell-tumors
#14
Pavlos Msaouel, Mehmet A Bilen, Miao Zhang, Matthew Campbell, Jennifer Wang, Shi-Ming Tu
PURPOSE OF REVIEW: In the present review, we summarize the recent developments in the management of germ cell tumors (GCTs). RECENT FINDINGS: Treatment-related acute and late-onset toxicity remains a key challenge in the management of GCTs. Recent data show that patients with large retroperitoneal lymph node metastases are at increased risk of venous thromboembolism and may benefit from prophylactic anticoagulation. Predictive models have been developed to identify patients with residual retroperitoneal lymph node masses who are more likely to benefit from surgical resection...
February 1, 2017: Current Opinion in Oncology
https://www.readbyqxmd.com/read/28145452/testis-specific-transcriptional-regulators-selectively-occupy-boris-bound-ctcf-target-regions-in-mouse-male-germ-cells
#15
Samuel Rivero-Hinojosa, Sungyun Kang, Victor V Lobanenkov, Gabriel E Zentner
Despite sharing the same sequence specificity in vitro and in vivo, CCCTC-binding factor (CTCF) and its paralog brother of the regulator of imprinted sites (BORIS) are simultaneously expressed in germ cells. Recently, ChIP-seq analysis revealed two classes of CTCF/BORIS-bound regions: single CTCF target sites (1xCTSes) that are bound by CTCF alone (CTCF-only) or double CTCF target sites (2xCTSes) simultaneously bound by CTCF and BORIS (CTCF&BORIS) or BORIS alone (BORIS-only) in germ cells and in BORIS-positive somatic cancer cells...
February 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28143957/insights-into-the-pathological-mechanisms-of-p85%C3%AE-mutations-using-a-yeast-based-phosphatydilinositol-3-kinase-model
#16
María D Oliver, Teresa Fernández-Acero, Sandra Luna, Isabel Rodríguez-Escudero, María Molina, Rafael Pulido, Victor J Cid
In higher eukaryotes, cell proliferation is regulated by class I phosphatidylinositol 3-kinase (PI3K), which transduces stimuli received from neighboring receptors by local generation of PtdIns(3,4,5)P3 in cellular membranes. PI3K is a heterodimeric protein consisting of a regulatory and a catalytic subunit (p85 and p110, respectively). Heterologous expression of p110a in S. cerevisiae leads to toxicity by conversion of essential PtdIns(4,5)P2 into futile PtdIns(3,4,5)P3, providing a humanized yeast model for functional studies on this pathway...
January 31, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28137366/somatic-mutations-in-cancer-stochastic-versus-predictable
#17
Barry Gold
The origins of human cancers remain unclear except for a limited number of potent environmental mutagens, such as tobacco and UV light, and in rare cases, familial germ line mutations that affect tumor suppressor genes or oncogenes. A significant component of cancer etiology has been deemed stochastic and correlated with the number of stem cells in a tissue, the number of times the stem cells divide and a low incidence of random DNA polymerase errors that occur during each cell division. While somatic mutations occur during each round of DNA replication, mutations in cancer driver genes are not stochastic...
February 2017: Mutation Research
https://www.readbyqxmd.com/read/28135773/epidemiological-study-of-paediatric-germ-cell-tumours-revealed-the-incidence-and-distribution-that-was-expected-but-a-low-mortality-rate
#18
Madeline Evers, Catherine Rechnitzer, Niels Graem, Peder Skov Wehner, Henrik Schroeder, Steen Rosthoej, Christiane Hammershaimb Mosbech, Christina Engel Hoei-Hansen, Astrid Sehested, Taryn D Treger, Jesper Brok
AIM: Germ cell tumours (GCTs) are a rare heterogeneous tumour group derived from primordial germ cells, which can be benign or malignant and occur in the gonads or extragonadally. This study mapped the paediatric GCTs in Denmark from 1984-2013 to study the incidence and outcome. METHODS: We identified paediatric GCTs from the Danish Childhood Cancer and National Pathology Registries and reviewed the case records for patient characteristics, tumour characteristics and clinical outcome...
January 30, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28134624/dosage-dependent-copy-number-gains-in-e2f1-and-e2f3-drive-hepatocellular-carcinoma
#19
Lindsey N Kent, Sooin Bae, Shih-Yin Tsai, Xing Tang, Arunima Srivastava, Christopher Koivisto, Chelsea K Martin, Elisa Ridolfi, Grace C Miller, Sarah M Zorko, Emilia Plevris, Yannis Hadjiyannis, Miguel Perez, Eric Nolan, Raleigh Kladney, Bart Westendorp, Alain de Bruin, Soledad Fernandez, Thomas J Rosol, Kamal S Pohar, James M Pipas, Gustavo Leone
Disruption of the retinoblastoma (RB) tumor suppressor pathway, either through genetic mutation of upstream regulatory components or mutation of RB1 itself, is believed to be a required event in cancer. However, genetic alterations in the RB-regulated E2F family of transcription factors are infrequent, casting doubt on a direct role for E2Fs in driving cancer. In this work, a mutation analysis of human cancer revealed subtle but impactful copy number gains in E2F1 and E2F3 in hepatocellular carcinoma (HCC)...
January 30, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28132046/peculiarities-of-catenin-activity-in-the-embryonal-testicular-carcinoma
#20
S Potapov, R Sidorenko, D Galata, N Stratiy, V Gargin
The aim of the research was to study immunohistochemical peculiarities of catenin activity in the embryonal testicular carcinoma. Material is presented by 39 cases of embryonal testicular carcinoma for the period from 1993 to 2013. Macroscopic and histological investigation has been performed according to the WHO classification (2004). Immunohistochemical examination with monoclonal antibodies to Ki-67, β-catenin and E-cadherin were performed. Embryonal carcinoma is presented 12.38% of all testicular germ cell tumors in our observations with median age of patients 30...
December 2016: Georgian Medical News
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