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Tumour markers

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https://www.readbyqxmd.com/read/29685967/germ-cell-tumour-subtypes-display-differential-expression-of-microrna371a-3p
#1
Bárbara Vilela-Salgueiro, Daniela Barros-Silva, João Lobo, Ana Laura Costa, Rita Guimarães, Mariana Cantante, Paula Lopes, Isaac Braga, Jorge Oliveira, Rui Henrique, Carmen Jerónimo
Testicular germ cell tumours (TGCTs) are a heterogeneous group of neoplasms, mostly affecting young men. Curability rates are high and adequate treatment relies on careful and accurate pathological and clinical assessment. Indeed, TGCTs' histopathological subtyping is critical for adequate therapeutic decision. Considering the limitation of currently available serum biomarkers, novel candidates have been proposed, most notably miR-371a-3p, which outperformed classical serum markers, but no detailed information concerning TGCT subtype was available...
June 5, 2018: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/29679936/controversies-in-monitoring-metastatic-breast-cancer-during-systemic-treatment-results-of-a-gim-gruppo-italiano-mammella-survey
#2
Bonotto Marta, Basile Debora, Gerratana Lorenzo, Pelizzari Giacomo, Bartoletti Michele, Vitale Maria Grazia, Fanotto Valentina, Lisanti Camilla, Mansutti Mauro, Minisini Alessandro Marco, Aprile Giuseppe, De Laurentiis Michele, Montemurro Filippo, Del Mastro Lucia, Puglisi Fabio
BACKGROUND: The optimal strategy for monitoring metastatic breast cancer (M-MBC) is unclear. Nevertheless, M-MBC influences patient's quality of life and it affects the use of resources in terms of both drugs and diagnostic exam prescription. We aim to disclose oncologists' approach on M-MBC, identifying controversial areas. METHODS: An anonymous online survey was conducted among GIM members who, based on their on-field experience, shared their own method for M-MBC planning...
April 18, 2018: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/29679615/novel-protective-role-of-kallistatin-in-obesity-by-limiting-adipose-tissue-low-grade-inflammation-and-oxidative-stress
#3
Gema Frühbeck, Javier Gómez-Ambrosi, Amaia Rodríguez, Beatriz Ramírez, Víctor Valentí, Rafael Moncada, Sara Becerril, Xabier Unamuno, Camilo Silva, Javier Salvador, Victoria Catalán
OBJECTIVE: Kallistatin plays an important role in the inhibition of inflammation, oxidative stress, fibrosis and angiogenesis. We aimed to determine the impact of kallistatin on obesity and its associated metabolic alterations as well as its role in adipocyte inflammation and oxidative stress. METHODS: Samples obtained from 95 subjects were used in a case-control study. Circulating concentrations and expression levels of kallistatin as well as key inflammation, oxidative stress and extracellular matrix remodelling-related genes were analyzed...
April 18, 2018: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/29679510/molecular-characteristics-of-multifocal-brain-histiocytic-sarcoma
#4
Florent Marguet, Nicolas Piton, Homa Adle-Biassette, Florence Renaud, Elodie Bohers, Thomas Boyer, Aline Zarea, Stéphane Derrey, Jean Christophe Sabourin, Annie Laquerrière
Histiocytic sarcoma (HS) is a very uncommon malignant proliferation accounting for less than 1% of all neoplasms of hematopoietic and lymphoid tissues. According to the 2008 WHO classification of haematological and lymphoid tumours, diagnosis of HS requires histological and immunohistochemical evidence of histiocytic differentiation [1]. The 2016 Central nervous system (CNS) WHO classification parallels the categories of the corresponding WHO classification of hematopoietic and lymphoid tissues. By definition, diagnosis of HS relies on the expression of at least two of the histiocytic markers, e...
April 21, 2018: Neuropathology and Applied Neurobiology
https://www.readbyqxmd.com/read/29679380/a-non-myeloablative-chimeric-mouse-model-accurately-defines-microglia-and-macrophage-contribution-in-glioma
#5
Kenny Yu, A Saam Youshani, Fiona L Wilkinson, Claire O'Leary, Peter Cook, Liisi Laaniste, Aiyin Liao, Dominic Mosses, Christopher Waugh, Hannah Shorrock, Omar Pathmanaban, Andrew Macdonald, Ian Kamaly-Asl, Federico Roncaroli, Brian W Bigger
AIMS: Resident and peripherally-derived glioma associated microglia/macrophages (GAMM) play a key role in driving tumour progression, angiogenesis, invasion, and attenuating host immune responses. Differentiating these cells' origins is challenging and current pre-clinical models such as irradiation-based adoptive transfer, parabiosis and transgenic mice have limitations. We aimed to develop a novel non-myeloablative transplantation (NMT) mouse model that permits high levels of peripheral chimerism without blood-brain barrier (BBB) damage or brain infiltration prior to tumour implantation...
April 20, 2018: Neuropathology and Applied Neurobiology
https://www.readbyqxmd.com/read/29678621/activation-of-the-non-canonical-nf-%C3%AE%C2%BAb-p52-pathway-in-vascular-endothelial-cells-by-rankl-elicits-pro-calcific-signalling-in-co-cultured-smooth-muscle-cells
#6
Emma Harper, Keith D Rochfort, Hannah Forde, Colin Davenport, Diarmuid Smith, Philip M Cummins
BACKGROUND: The intimal endothelium is known to condition the underlying medial smooth muscle cell (SMC) layer of the vessel wall, and is highly responsive to receptor-activator of nuclear factor-κB ligand (RANKL) and tumour necrosis factor-related apoptosis-inducing ligand (TRAIL), pro-calcific and anti-calcific agents, respectively. In this paper, we tested the hypothesis that RANKL-induced activation of endothelial NF-κB signalling is essential for pro-calcific activation of the underlying SMCs...
April 17, 2018: Cellular Signalling
https://www.readbyqxmd.com/read/29678478/immunohistochemical-cd271-expression-correlates-with-melanoma-progress-in-a-case-control-study
#7
Patricia Switten Nielsen, Rikke Riber-Hansen, Torben Steiniche
Putative cancer stem cell (CSC) markers have arisen from melanoma mouse and in vitro models, but their expression in paraffin embedded patient samples relative to clinical outcome remains largely unexplored. Rather than cells of the tumour bulk, conceivably, CSC drive tumour progression. Accordingly, complete eradication may prevent melanoma relapse. Because elevated tumour-cell proliferation is an established indicator of aggressive disease, this study aimed to investigate the correlation between melanoma recurrence and proliferation of putative CSC that express CD271, CD166, or CD20...
April 17, 2018: Pathology
https://www.readbyqxmd.com/read/29675965/il-33-overexpression-reflects-less-aggressive-tumour-features-in-large-duct-type-cholangiocarcinomas
#8
Ryuichiro Sawada, Yuna Ku, Masayuki Akita, Kyoko Otani, Kohei Fujikura, Tomoo Itoh, Tetsuo Ajiki, Takumi Fukumoto, Yoshihiro Kakeji, Yoh Zen
BACKGROUND & AIMS: The present study aimed to elucidate the clinicopathological significance of IL-6 and IL-33 expression in intrahepatic cholangiocarcinomas (iCCAs) and perihilar cholangiocarcinomas (pCCAs). METHODS: IL-6 and IL-33 mRNA expression was examined in iCCAs (n=55) and pCCAs (n=32) using quantitative real-time PCR and a highly sensitive in situ hybridization protocol (RNAscope® ), and expression values were correlated with clinicopathological features...
April 19, 2018: Histopathology
https://www.readbyqxmd.com/read/29675793/no-influence-of-smoking-status-on-the-performance-of-urine-markers-for-the-detection-of-bladder-cancer
#9
Susanne Deininger, J Hennenlotter, S Rausch, K Docktor, E Neumann, I A da Costa, J Bedke, A Stenzl, T Todenhöfer
PURPOSE: The performance of urinary markers for detecting bladder cancer (BC) is influenced by various factors. The aim of the present study was to evaluate the influence of smoking habits on the performance of four commonly used urine markers. METHODS: Urine samples of 723 patients with suspected BC were analysed using urine cytology, fluorescence in situ hybridization (FISH), immunocytology (uCyt+ test), and quantitative nuclear matrix protein 22 (NMP22) immunoassay...
April 19, 2018: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/29674052/glycan-affinity-magnetic-nanoplatforms-for-urinary-glycobiomarkers-discovery-in-bladder-cancer
#10
Rita Azevedo, Janine Soares, Cristiana Gaiteiro, Andreia Peixoto, Luís Lima, Dylan Ferreira, Marta Relvas-Santos, Elisabete Fernandes, Ana Tavares, Sofia Cotton, Ana Luísa Daniel-da-Silva, Lúcio Lara Santos, Rui Vitorino, Francisco Amado, José Alexandre Ferreira
Bladder Cancer (BC) presents one of the highest recurrence rates amongst solid tumours and constitutes the second deadliest disease of the genitourinary track. Non-invasive identification of patients facing disease recurrence and/or progression remains one of the most critical and challenging aspects in disease management. To contribute to this goal, we demonstrate the potential of glycan-affinity glycoproteomics nanoplatforms for urinary biomarkers discovery in bladder cancer. Briefly, magnetic nanoprobes (MNP) coated with three broad-spectrum lectins, namely Concanavalin A (ConA; MNP@ConA), Wheat Germ Agglutinin (WGA; MNP@WGA), and Sambucus nigra (SNA; MNP@SNA), were used to selectively capture glycoproteins from the urine of low-grade and high-grade non-muscle invasive as well as muscle-invasive BC patients...
July 1, 2018: Talanta
https://www.readbyqxmd.com/read/29671211/characterisation-of-dog-1-expression-in-salivary-gland-tumours-and-comparison-with-myoepithelial-markers
#11
Syed A Khurram, Paul M Speight
DOG1 is an established diagnostic marker for gastrointestinal stromal tumours (GIST), but has been reported in salivary gland tumours (SGT) as an acinar and intercalated duct marker. However, its specificity and distribution is not well established. The aim of this study was to evaluate the diagnostic utility of DOG-1 expression in SGT in addition to comparing it with myoepithelial markers. Normal salivary tissue and SGT (n = 184) were examined for expression of DOG1 and a range of myoepithelial markers...
April 18, 2018: Head and Neck Pathology
https://www.readbyqxmd.com/read/29671054/survivin-expression-in-head-and-neck-squamous-cell-carcinomas-is-frequent-and-correlates-with-clinical-parameters-and-treatment-outcomes
#12
Adrian Münscher, Sebastian Prochnow, Amit Gulati, Guido Sauter, Balazs Lörincz, Marco Blessmann, Henning Hanken, Arne Böttcher, Till Sebastian Clauditz
OBJECTIVES: Strong expression of survivin is associated with worse survival in many different tumours, and in cell culture, a correlation between radiation resistance and survivin expression can be seen. The potential of survivin expression as a prognostic/predictive marker or therapeutic target has not been examined in head and neck squamous cell carcinomas (HNSCC) yet. MATERIAL AND METHODS: Retrospective study of 452 tissue samples and clinical data from patients with squamous cell carcinomas of the larynx/hypopharynx (LSCC), oral cavity (OSCC) and oropharynx (OPSCC) treated in the University Medical Centre Hamburg-Eppendorf between 2002 and 2006...
April 18, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29670281/identification-of-the-tumour-transition-states-occurring-during-emt
#13
Ievgenia Pastushenko, Audrey Brisebarre, Alejandro Sifrim, Marco Fioramonti, Tatiana Revenco, Soufiane Boumahdi, Alexandra Van Keymeulen, Daniel Brown, Virginie Moers, Sophie Lemaire, Sarah De Clercq, Esmeralda Minguijón, Cédric Balsat, Youri Sokolow, Christine Dubois, Florian De Cock, Samuel Scozzaro, Federico Sopena, Angel Lanas, Nicky D'Haene, Isabelle Salmon, Jean-Christophe Marine, Thierry Voet, Panagiota A Sotiropoulou, Cédric Blanpain
In cancer, the epithelial-to-mesenchymal transition (EMT) is associated with tumour stemness, metastasis and resistance to therapy. It has recently been proposed that, rather than being a binary process, EMT occurs through distinct intermediate states. However, there is no direct in vivo evidence for this idea. Here we screen a large panel of cell surface markers in skin and mammary primary tumours, and identify the existence of multiple tumour subpopulations associated with different EMT stages: from epithelial to completely mesenchymal states, passing through intermediate hybrid states...
April 18, 2018: Nature
https://www.readbyqxmd.com/read/29667772/tead4-exerts-pro-metastatic-effects-and-is-negatively-regulated-by-mir6839-3p-in-lung-adenocarcinoma-progression
#14
Qun Zhang, Hang Fan, Qian Zou, Hongda Liu, Bing Wan, Suhua Zhu, Yangbo Hu, Huijuan Li, ChenXi Zhang, Li Zhou, Qingqing Zhu, Kunhong Xiao, Jianya Zhang, Ping Zhan, Tangfeng Lv, Yong Song
Several studies have shown the tumorigenesis role of transcriptional enhancer associate domain (TEAD) proteins; here, we initially explored expression, function and signalling mechanisms of TEAD4 in lung adenocarcinoma (LAD). Both the mRNA and protein levels of TEAD4 were increased in LAD tissues than those in adjacent nontumourous tissues. Besides, database search indicated a poorer clinical outcome in LAD patients with higher TEAD4 expression, revealing its potential tumour-promoting role. Therefore, we conducted cellular experiments to further investigate its effect on tumour phenotypes...
April 18, 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29667332/fertility-preservation-in-testicular-cancer-predictors-of-spermatogenesis
#15
Jemma A Moody, Kamran Ahmed, Catherine Horsfield, Malene R V Pedersen, Tet Yap, Majid Shabbir
OBJECTIVES: To determine the frequency of spermatogenesis in patients with testicular cancer and to assess for any predictors of spermatogenesis. PATIENTS AND METHODS: We retrospectively reviewed 103 testicular germ cell tumours (TGCTs) in men who underwent radical orchidectomy conducted at Guy's Hospital, London, between 2011 and 2015. Primary outcome measures included: the presence and characteristics of spermatogenesis (widespread/focal/proximity to tumour). Secondary outcome measures included: the presence of testicular microlithiasis, tumour characteristics (size, stage, and type), and tumour markers...
April 17, 2018: BJU International
https://www.readbyqxmd.com/read/29666555/national-survey-on-internal-quality-control-for-tumour-markers-in-clinical-laboratories-in-china
#16
Wei Wang, Kun Zhong, Shuai Yuan, Falin He, Yuxuan Du, Zhehui Hu, Zhiguo Wang
Introduction: This survey was initiated to obtain knowledge on the current situation of internal quality control (IQC) practice for tumour markers (TMs) in China. Additionally, we tried to acquire the most appropriate quality specifications. Materials and methods: This survey was a current status survey. The IQC information had been collected via online questionnaires. All of 1821 clinical laboratories which participated in the 2016 TMs external quality assessment (EQA) programme had been enrolled...
June 15, 2018: Biochemia Medica: časopis Hrvatskoga Društva Medicinskih Biokemičara
https://www.readbyqxmd.com/read/29666462/tranilast-inhibits-the-expression-of-genes-related-to-epithelial-mesenchymal-transition-and-angiogenesis-in-neurofibromin-deficient-cells
#17
Ritsuko Harigai, Shigeki Sakai, Hiroyuki Nobusue, Chikako Hirose, Oltea Sampetrean, Noriaki Minami, Yukie Hata, Takashi Kasama, Takanori Hirose, Toshiki Takenouchi, Kenjiro Kosaki, Kazuo Kishi, Hideyuki Saya, Yoshimi Arima
Neurofibromatosis type 1 (NF1) is caused by germline mutations in the NF1 gene and is characterized by café au lait spots and benign tumours known as neurofibromas. NF1 encodes the tumour suppressor protein neurofibromin, which negatively regulates the small GTPase Ras, with the constitutive activation of Ras signalling resulting from NF1 mutations being thought to underlie neurofibroma development. We previously showed that knockdown of neurofibromin triggers epithelial-mesenchymal transition (EMT) signalling and that such signalling is activated in NF1-associated neurofibromas...
April 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29666402/expression-of-kk-lc-1-a-cancer-testis-antigen-at-non-tumour-sites-of-the-stomach-carrying-a-tumour
#18
Takashi Fukuyama, Nobue Futawatari, Rui Yamamura, Taiga Yamazaki, Yoshinobu Ichiki, Akira Ema, Hideki Ushiku, Yatsushi Nishi, Yoshihito Takahashi, Toshikazu Otsuka, Hitoshi Yamazaki, Wasaburo Koizumi, Kosei Yasumoto, Noritada Kobayashi
Kita-Kyushu lung cancer antigen-1 (KK-LC-1) is a cancer/testis antigen (CTA) and predominant target for cancer immunotherapy. Our previous study indicated that KK-LC-1 was expressed in 82% of gastric cancers, and also in 79% of early stage of gastric cancers, with a correlation to Helicobacter pylori (H. pylori) infection. In addition, we found that KK-LC-1 was occasionally expressed at non-tumour sites of stomachs carrying tumours. Here, we investigated the characteristics of KK-LC-1 expression at non-tumour sites and the clinical utility of these phenomena...
April 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29666340/genetic-variants-of-foxp1-and-foxf1-are-associated-with-the-susceptibility-of-oesophageal-adenocarcinoma-in-chinese-population
#19
Jie Zhang, Jiebin Chen, Tianheng Ma, Huimin Guo, Bin Yang
This study aimed to investigate whether the genetic variants of CRTC1, BARX1, FOXP1 and FOXF1 are associated with the development of oesophageal adenocarcinoma (OA) in Chinese population. A total of 744 OA patients and 1138 controls were included in this study. Here we genotyped four SNPs, rs10419226 of CRTC1, rs11789015 of BARX1, rs2687201 of FOXP1 and rs3111601 of FOXF1. The chi-square test was used to compare the genotype and allele frequencies between the patients and controls. The student's t-test was used to compare FOXP1 expression in the tumour and the adjacent normal tissues...
March 2018: Journal of Genetics
https://www.readbyqxmd.com/read/29666172/genetic-editing-of-colonic-organoids-provides-a-molecularly-distinct-and-orthotopic-preclinical-model-of-serrated-carcinogenesis
#20
Tamsin R M Lannagan, Young K Lee, Tongtong Wang, Jatin Roper, Mark L Bettington, Lochlan Fennell, Laura Vrbanac, Lisa Jonavicius, Roshini Somashekar, Krystyna Gieniec, Miao Yang, Jia Q Ng, Nobumi Suzuki, Mari Ichinose, Josephine A Wright, Hiroki Kobayashi, Tracey L Putoczki, Yoku Hayakawa, Simon J Leedham, Helen E Abud, Ömer H Yilmaz, Julie Marker, Sonja Klebe, Pratyaksha Wirapati, Siddhartha Mukherjee, Sabine Tejpar, Barbara A Leggett, Vicki L J Whitehall, Daniel L Worthley, Susan L Woods
OBJECTIVE: Serrated colorectal cancer (CRC) accounts for approximately 25% of cases and includes tumours that are among the most treatment resistant and with worst outcomes. This CRC subtype is associated with activating mutations in the mitogen-activated kinase pathway gene, BRAF , and epigenetic modifications termed the CpG Island Methylator Phenotype, leading to epigenetic silencing of key tumour suppressor genes. It is still not clear which (epi-)genetic changes are most important in neoplastic progression and we begin to address this knowledge gap herein...
April 17, 2018: Gut
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