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https://www.readbyqxmd.com/read/28933018/-18-f-fluoromisonidazole-pet-in-rectal-cancer
#1
Tanuj Puri, Tessa A Greenhalgh, James M Wilson, Jamie Franklin, Lia Mun Wang, Victoria Strauss, Chris Cunningham, Mike Partridge, Tim Maughan
BACKGROUND: There is an increasing interest in developing predictive biomarkers of tissue hypoxia using functional imaging for personalised radiotherapy in patients with rectal cancer that are considered for neoadjuvant chemoradiotherapy (CRT). The study explores [(18)F]fluoromisonidazole ([(18)F]FMISO) positron emission tomography (PET) scans for predicting clinical response in rectal cancer patients receiving neoadjuvant CRT. METHODS: Patients with biopsy-proven rectal adenocarcinoma were imaged at 0-45 min, 2 and 4 h, at baseline and after 8-10 fractions of CRT (week 2)...
September 20, 2017: EJNMMI Research
https://www.readbyqxmd.com/read/28916862/monitoring-the-response-of-urothelial-precancerous-lesions-to-bacillus-calmette-guerin-at-the-proteome-level-in-an-in-vivo-rat-model
#2
Kerem Teke, Nil Guzel, Ali Kemal Uslubas, Murat Kasap, Hasan Yilmaz, Gurler Akpinar, Demir Kursat Yildiz, Ozdal Dillioglugil
Intravesical Bacillus Calmette-Guerin (BCG) is the best treatment modality for progression of non-muscle invasive bladder cancer. We aimed to monitor changes at the proteome level to identify putative protein biomarkers associated with the response of urothelial precancerous lesions to intravesical BCG treatment. The rats were divided into three groups (n = 10/group): control, non-treated, and BCG-treated groups. The non-treated and BCG-treated groups received N-methyl-N-nitrosourea intravesically. BCG Tice-strain was instilled into bladder in BCG-treated group...
September 15, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28915710/insights-from-animal-models-of-bladder-cancer-recent-advances-challenges-and-opportunities
#3
REVIEW
Bincy Anu John, Neveen Said
Bladder cancer (urothelial cancer of the bladder) is the most common malignancy affecting the urinary system with increasing incidence and mortality. Treatment of bladder cancer has not advanced in the past 30 years. Therefore, there is a crucial unmet need for novel therapies, especially for high grade/stage disease that can only be achieved by preclinical model systems that faithfully recapitulate the human disease. Animal models are essential elements in bladder cancer research to comprehensively study the multistep cascades of carcinogenesis, progression and metastasis...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28915699/biological-effects-and-epidemiological-consequences-of-arsenic-exposure-and-reagents-that-can-ameliorate-arsenic-damage-in-vivo
#4
REVIEW
Chinthalapally V Rao, Sanya Pal, Altaf Mohammed, Mudassir Farooqui, Mark P Doescher, Adam S Asch, Hiroshi Y Yamada
Through contaminated diet, water, and other forms of environmental exposure, arsenic affects human health. There are many U.S. and worldwide "hot spots" where the arsenic level in public water exceeds the maximum exposure limit. The biological effects of chronic arsenic exposure include generation of reactive oxygen species (ROS), leading to oxidative stress and DNA damage, epigenetic DNA modification, induction of genomic instability, and inflammation and immunomodulation, all of which can initiate carcinogenesis...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28914192/current-trends-in-cancer-biomarker-discovery-using-urinary-metabolomics-achievements-and-new-challenges
#5
Casey Burton, Yinfa Ma
The development of effective screening methods for early cancer detection is one of the foremost challenges facing modern cancer research. Urinary metabolomics has recently emerged as a potentially transformative approach to cancer biomarker discovery owing to its noninvasive sampling characteristics and robust analytical feasibility. OBJECTIVE: To provide an overview of new developments in urinary metabolomics, cover the most promising aspects of hyphenated techniques in untargeted and targeted metabolomics, and to discuss technical and clinical limitations in addition to the emerging challenges in the field of urinary metabolomics and its application to cancer biomarker discovery...
September 13, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28903367/exploratory-investigation-of-psca-protein-expression-in-primary-breast-cancer-patients-reveals-a-link-to-her2-neu-overexpression
#6
Theresa Link, Friederike Kuithan, Armin Ehninger, Jan Dominik Kuhlmann, Michael Kramer, Andreas Werner, Axel Gatzweiler, Barbara Richter, Gerhard Ehninger, Gustavo Baretton, Michael Bachmann, Pauline Wimberger, Katrin Friedrich
BACKGROUND: Prostate stem cell antigen (PSCA) has been suggested as biomarker and therapeutic target for prostate cancer. Recent advances showed that PSCA is up-regulated in other cancer entities, such as bladder or pancreatic cancer. However, the clinical relevance of PSCA-expression in breast cancer patients has not yet been established and is therefore addressed by the current study. METHODS: PSCA-protein expression was assessed in 405 breast cancer patients, using immunohistochemistry (PSCA antibody MB1) and tissue microarrays...
August 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28895415/hyaluronic-acid-hyaluronidase-as-biomarkers-for-bladder-cancer-a-diagnostic-meta-analysis
#7
Z Liang, Q Zhang, Ch Wang, F Shi, H Cao, Y Yu, M Zhang, X Liu
This study aimed to determine the value of HA/HAase for detecting bladder cancer on the basis of preceding statistical performance. PubMed, Springer Link, Web of Science and Cochrane Library were systematically searched to identify potentially relevant published articles by using the key words: "bladder cancer or bladder tumor or bladder carcinoma", "hyaluronic acid or hyaluronan", "hyaluronidase or HAase". The methodological quality of each study was assessed by QUADAS-2. According to the inclusive and exclusive criteria, 8 articles were identified and methodologically analyzed by STATA 12...
September 12, 2017: Neoplasma
https://www.readbyqxmd.com/read/28890885/evaluation-of-microrna-99a-and-microrna-205-expression-levels-in-bladder-cancer
#8
Sajjad Mohammad Ganji, Massoud Saidijam, Razieh Amini, Seyed Habibollah Mousavi-Bahar, Nooshin Shabab, Saman Seyedabadi, Ali Mahdavinezhad
Bladder cancer is the second most common cancer in the genitourinary tract, showing often recurrence and progress into invasive states. Epigenetic changes, such as microRNA alteration are involved in bladder cancer tumorigenesis through a variety of signaling pathways. The epigenetic state depends on geographic and lifestyle conditions. The aim of this study was to investigate the expression level of microRNA-99a and microRNA-205 in bladder cancer in Iranian populations and to determine the relationship between their expressions with clinicophatological features...
2017: International Journal of Molecular and Cellular Medicine
https://www.readbyqxmd.com/read/28889391/urinary-protein-markers-for-the-detection-and-prognostication-of-urothelial-carcinoma
#9
Tibor Szarvas, Péter Nyirády, Takashi Kobayashi, Osamu Ogawa, Charles J Rosser, Hideki Furuya
Bladder cancer diagnosis and surveillance is mainly based on cystoscopy and urine cytology. However, both methods have significant limitations; urine cytology has a low sensitivity for low-grade tumors, while cystoscopy is uncomfortable for the patients. Therefore, in the last decade urine analysis was the subject of intensive research resulting in the identification of many potential biomarkers for the detection, surveillance, or prognostic stratification of bladder cancer. Current trends move toward the development of multiparametric models to improve the diagnostic accuracy compared with single molecular markers...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28889388/quantification-of-micrornas-in-urine-derived-specimens
#10
Susanne Fuessel, Andrea Lohse-Fischer, Dana Vu Van, Karsten Salomo, Kati Erdmann, Manfred P Wirth
MicroRNAs are small noncoding RNAs which regulate the expression of genes involved in a multitude of cellular processes. Dysregulation of microRNAs and-in consequence-of the affected pathways is frequently observed in numerous pathologies including cancers. Therefore, tumor-related alterations in microRNA expression and function can reflect molecular processes of tumor onset and progression qualifying microRNAs as potential diagnostic and prognostic biomarkers.In particular, microRNAs with differential expression in bladder cancer (BCa) might represent promising tools for noninvasive tumor detection in urine...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28885863/long-noncoding-rna-bladder-cancer-associated-transcript-1-promotes-the-proliferation-migration-and-invasion-of-nonsmall-cell-lung-cancer-through-sponging-mir-144
#11
Ji-Ru Ye, Liang Liu, Feng Zheng
Nonsmall cell lung cancer (NSCLC) is a type of malignant tumor, accounting for 80% of all lung cancer morbidity. Long noncoding RNA (lncRNA) BLACAT1 (bladder cancer associated transcript 1), also known as linc-UBC1, has been tested to be an oncogenic lncRNA in other cancers. However, the role of BLACAT1 in NSCLC is still unknown. In clinical study, BLACAT1 expression was significantly upregulated in 48 cases of NSCLC tissues compared with adjacent normal tissues, especially in pathological TNM III samples. In NSCLC cells, BLACAT1 expression was also upregulated...
September 8, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28884116/the-role-of-pontin-and-reptin-in-cellular-physiology-and-cancer-etiology
#12
REVIEW
Yu-Qian Mao, Walid A Houry
Pontin (RUVBL1, TIP49, TIP49a, Rvb1) and Reptin (RUVBL2, TIP48, TIP49b, Rvb2) are highly conserved ATPases of the AAA+ (ATPases Associated with various cellular Activities) superfamily and are involved in various cellular processes that are important for oncogenesis. First identified as being upregulated in hepatocellular carcinoma and colorectal cancer, their overexpression has since been shown in multiple cancer types such as breast, lung, gastric, esophageal, pancreatic, kidney, bladder as well as lymphatic, and leukemic cancers...
2017: Frontiers in Molecular Biosciences
https://www.readbyqxmd.com/read/28881685/association-between-psca-gene-polymorphisms-and-the-risk-of-cancer-an-updated-meta-analysis-and-trial-sequential-analysis
#13
Zhiqiang Qin, Jingyuan Tang, Xiao Li, Yajie Yu, Chuanjie Zhang, Peng Han, Ran Li, Xuping Jiang, Chengdi Yang, Wei Wang, Min Tang, Wei Zhang
Previous studies have investigated the relationships between PSCA rs2294008 C>T and rs2976392 G>A polymorphisms and cancer susceptibility. However, the available findings remained inconsistent and even controversial. Thus, the aim of this meta-analysis was performed to clarify such associations. The online databases PubMed, EMBASE and Web of Science searched for relevant studies, covering all the papers published until September 1st, 2016. Data were pooled by odds ratios (ORs) with 95% confidence intervals (CIs) to evaluate the strength of such associations...
August 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28877075/microsatellite-instability-a-predictive-biomarker-for-cancer-immunotherapy
#14
Liisa Chang, Minna Chang, Hanna M Chang, Fuju Chang
Immunotherapy has shown promising results in various types of cancers. Checkpoint inhibitor drugs developed for cancer immunotherapy have been approved by the US Food and Drug Administration (FDA) for patients with advanced melanoma, non-small cell lung cancer, renal cell carcinoma, bladder cancers, and refractory Hodgkin lymphoma. In the latest announcement, the FDA has granted accelerated approval to pembrolizumab for pediatric and adult patients with microsatellite instability-high (MSI-H) or mismatch repair-deficient solid tumors...
September 4, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/28876468/s100a16-is-a-prognostic-marker-for-colorectal-cancer
#15
Xu Sun, Teng Wang, Chun Zhang, Kuan Ning, Zhang-Rui Guan, Shu-Xian Chen, Ting-Ting Hong, Dong Hua
BACKGROUND: S100 is a superfamily of calcium-binding proteins that regulate multiple biological processes and are involved in many diseases. S100A16 has recently been identified to be involved in several cancers such as bladder cancer, lung cancer, and oral squamous cell carcinoma. However, the role of S100A16 expression in the colorectal cancer (CRC) has not been investigated. METHODS: S100A16 protein expression was detected by immunohistochemistry in 296 cases of CRC...
September 6, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28870843/phosphatidylserine-a-cancer-cell-targeting-biomarker
#16
REVIEW
Bhupender Sharma, Shamsher S Kanwar
Cancer is a leading cause of mortality and morbidity globally. Many prominent cancer-associated molecules have been identified over the recent years which include EGFR, CD44, TGFbRII, HER2, miR-497, NMP22, BTA, Fibrin/FDP etc. These biomarkers are often used for screening, detection, diagnosis, prognosis, prediction and monitoring of cancer development. Phosphatidylserine (PS) is an essential component in all human cells which is present on the inner leaflet of the cell membrane. The oxidative stress causes exposure of PS on the surface of the vascular endothelium in the cancer cells (lung, breast, pancreatic, bladder, skin, brain metastasis, rectal adenocarcinoma etc...
September 1, 2017: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/28851690/tobacco-specific-carcinogens-induce-hypermethylation-dna-adducts-and-dna-damage-in-bladder-cancer
#17
Feng Jin, Jose Thaiparambil, Sri Ramya Donepudi, Venkat Rao Vantaku, Danthasinghe Waduge Badrajee Piyarathna, Suman Maity, Rashmi Krishnapuram, Vasanta Putluri, Franklin Gu, Preeti Purwaha, Salil Kumar Bhowmik, Chandra Shekar Reddy Ambati, Friedrich-Carl von Rundstedt, Florian Roghmann, Sebastian Berg, Joachim Noldus, Kimal Rajapakshe, Daniel Gödde, Stephan Roth, Stephan Störkel, Stephan Degener, George Michailidis, Benny A Kaipparettu, Balasubramanyam Karanam, Martha K Terris, Shyam M Kavuri, Seth P Lerner, Farrah Kheradmand, Cristian Coarfa, Arun Sreekumar, Yair Lotan, Randa El-Zein, Nagireddy Putluri
Smoking is a major risk factor for the development of Bladder Cancer (BLCA); however, the functional consequences of the carcinogens in tobacco smoke and BLCA-associated metabolic alterations remains poorly defined. We assessed the metabolic profiles in BLCA smokers and non-smokers, and identified the key alterations in their metabolism. Liquid Chromatography - Mass Spectrometry (LC-MS), and bioinformatic analysis were performed to determine the metabolome associated with BLCA smokers and were further validated in cell line models...
August 29, 2017: Cancer Prevention Research
https://www.readbyqxmd.com/read/28851591/prognostic-role-of-n-cadherin-expression-in-patients-with-invasive-bladder-cancer
#18
Mohammad Abufaraj, Andrea Haitel, Marco Moschini, Kilian Gust, Beat Foerster, Mehmet Özsoy, David D'Andrea, Pierre I Karakiewicz, Morgan Rouprêt, Alberto Briganti, Shahrokh F Shariat
BACKGROUND: We assessed the role of N-cadherin as a prognostic biomarker in patients with invasive bladder cancer (BCa) who had undergone radical cystectomy (RC). PATIENTS AND METHODS: The present retrospective single-center study included 433 BCa patients who had undergone RC and bilateral lymph node dissection. Formalin-fixed paraffin tissue microarrays were stained with an anti-N-cadherin monoclonal mouse antibody. N-cadherin expression was considered positive if any immunoreactivity was detected...
August 15, 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28841829/hypoxic-exosomes-facilitate-bladder-tumor-growth-and-development-through-transferring-long-non-coding-rna-uca1
#19
Mei Xue, Wei Chen, An Xiang, Ruiqi Wang, He Chen, Jingjing Pan, Huan Pang, Hongli An, Xiang Wang, Huilian Hou, Xu Li
BACKGROUND: To overcome the hostile hypoxic microenvironment of solid tumors, tumor cells secrete a large number of non-coding RNA-containing exosomes that facilitate tumor development and metastasis. However, the precise mechanisms of tumor cell-derived exosomes during hypoxia are unknown. Here, we aim to clarify whether hypoxia affects tumor growth and progression by transferring long non-coding RNA-urothelial cancer-associated 1 (lncRNA-UCA1) enriched exosomes secreted from bladder cancer cells...
August 25, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28839463/tgf%C3%AE-1-promotes-gemcitabine-resistance-through-regulating-the-lncrna-let-nf90-mir-145-signaling-axis-in-bladder-cancer
#20
Junlong Zhuang, Lan Shen, Lin Yang, Xiaojing Huang, Qun Lu, Yangyan Cui, Xi Zheng, Xiaozhi Zhao, Dianzheng Zhang, Ruimin Huang, Hongqian Guo, Jun Yan
High tumor recurrence is frequently observed in patients with urinary bladder cancers (UBCs), with the need for biomarkers of prognosis and drug response. Chemoresistance and subsequent recurrence of cancers are driven by a subpopulation of tumor initiating cells, namely cancer stem-like cells (CSCs). However, the underlying molecular mechanism in chemotherapy-induced CSCs enrichment remains largely unclear. In this study, we found that during gemcitabine treatment lncRNA-Low Expression in Tumor (lncRNA-LET) was downregulated in chemoresistant UBC, accompanied with the enrichment of CSC population...
2017: Theranostics
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