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https://www.readbyqxmd.com/read/28528517/loss-of-msh2-and-msh6-due-to-heterozygous-germline-defects-in-msh3-and-msh6
#1
Monika Morak, Sarah Käsbauer, Martina Kerscher, Andreas Laner, Anke M Nissen, Anna Benet-Pagès, Hans K Schackert, Gisela Keller, Trisari Massdorf, Elke Holinski-Feder
Lynch Syndrome (LS) is the most common dominantly inherited colorectal cancer (CRC) predisposition and is caused by a heterozygous germline defect in one of the DNA mismatch repair (MMR) genes MLH1, MSH2, MSH6, or PMS2. High microsatellite instability (MSI-H) and loss of MMR protein expression in tumours reflecting a defective MMR are indicators for LS, as well as a positive family history of early onset CRC. MSH2 and MSH6 form a major functional heterodimer, and MSH3 is an alternative binding partner for MSH2...
May 20, 2017: Familial Cancer
https://www.readbyqxmd.com/read/28527393/a-combination-of-platelet-features-allows-detection-of-early-stage-cancer
#2
Siamack Sabrkhany, Marijke J E Kuijpers, Sander M J van Kuijk, Linda Sanders, Sharo Pineda, Steven W M Olde Damink, Anne-Marie C Dingemans, Arjan W Griffioen, Mirjam G A Oude Egbrink
BACKGROUND: Detection of early-stage cancer significantly improves patient survival. As platelets play an important role in cancer progression, we aimed to investigate whether platelets can be used for the discovery of early-stage cancer. METHODS: Patients with lung (n = 86) or head of pancreas (n = 42) cancer were included, as were healthy sex- and age-matched controls (n = 92). Blood was collected before initiation of treatment. Platelet count, volume and activation status were quantified in whole blood...
May 17, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28525852/absolute-quantification-of-dna-methylation-using-microfluidic-chip-based-digital-pcr
#3
Zhenhua Wu, Yanan Bai, Zule Cheng, Fangming Liu, Ping Wang, Dawei Yang, Gang Li, Qinghui Jin, Hongju Mao, Jianlong Zhao
Hypermethylation of CpG islands in the promoter region of many tumor suppressor genes downregulates their expression and in a result promotes tumorigenesis. Therefore, detection of DNA methylation status is a convenient diagnostic tool for cancer detection. Here, we reported a novel method for the integrative detection of methylation by the microfluidic chip-based digital PCR. This method relies on methylation-sensitive restriction enzyme HpaII, which cleaves the unmethylated DNA strands while keeping the methylated ones intact...
May 12, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28525750/lung-cancer-a-wily-genetic-opponent
#4
Peggy P Hsu, Alice T Shaw
In two companion reports, the TRACERx consortium investigates tumor heterogeneity and evolution in early-stage non-small cell lung cancer. The studies highlight the prognostic value of copy-number heterogeneity assessment in tumor biopsies and circulating tumor DNA detection in plasma and suggest that tracking the evolution of lung cancers might aid clinical practice.
May 18, 2017: Cell
https://www.readbyqxmd.com/read/28524415/ndrg4-an-early-detection-marker-for-colorectal-cancer-is-specifically-expressed-in-enteric-neurons
#5
N Vaes, M H F M Lentjes, M J Gijbels, G Rademakers, K L Daenen, W Boesmans, K A D Wouters, A Geuzens, X Qu, H P J Steinbusch, B P F Rutten, S H Baldwin, K A Sharkey, R M W Hofstra, M van Engeland, P Vanden Berghe, V Melotte
BACKGROUND: Promoter methylation of N-myc Downstream-Regulated Gene 4 (NDRG4) in fecal DNA is an established early detection marker for colorectal cancer (CRC). Despite its connection to CRC, NDRG4 is predominantly studied in brain and heart, with little to no knowledge about its expression or role in other organs. In this study, we aimed to determine the whole-body expression of NDRG4, with a focus on the intestinal tract. METHODS: We investigated NDRG4 expression throughout the body by immunohistochemistry, Western Blotting and in situ mRNA hybridization using tissues from NDRG4 wild-type, heterozygous and knockout mice and humans...
May 19, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28524006/circulating-tumor-cells-a-reliable-biomarker-for-prostate-cancer-treatment-assessment
#6
Chiara Ciccarese, Rodolfo Montironi, Michelangelo Fiorentino, Guido Martignoni, Matteo Brunelli, Roberto Iacovelli, Antonio Lopez-Beltran, Liang Cheng, Marina Scarpelli, Holger Moch, Giampaolo Tortora, Francesco Massari
Prostate cancer is a common malignancy with highly molecular heterogeneity responsible for a wide spectrum of clinical behavior. To date, several treatment options are available, whose selection is currently based mainly on clinical criteria. Given the weakness of conventional imaging and PSA assay, the identification of a prognostic and predictive biomarker for choosing the appropriate treatment and monitoring its efficacy is a very topical issue in prostate cancer management. Circulating tumor cells (CTCs) have substantial promise for early tumor diagnosis, disease recurrence and metastatic spread monitoring as well as for biological tumor characterization, thus representing a reliable translational real-time biomarkers of prostate cancer...
May 18, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/28524004/urinary-biomarkers-for-prostate-cancer
#7
Francesca Giunchi, Chiara Ciccarese, Rodolfo Montironi, Marina Scarpelli, Antonio Lopez-Beltran, Liang Cheng, Holger Moch, Francesco Massari, Michelangelo Fiorentino
Urine may represent a convenient source of biomarkers for the early detection of prostate cancer (PCa) since contains secreted prostatic products and exfoliated tumor cells. Furthermore urine are easy to collect with non-invasive procedures and they are repeatable. Several urinary biomarkers for PCa have been proposed in the past but only one (PCA3) has been approved for clinical use and even this is not widely utilized in the routine practice. Most of these, particularly the proteins, were abandoned due to lack of confirmation...
May 18, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/28523199/de-novo-pten-mutation-in-a-young-boy-with-cutaneous-vasculitis
#8
Angela Mauro, Ebun Omoyinmi, Neil James Sebire, Angela Barnicoat, Paul Brogan
Phosphatase and tensin homolog (PTEN) is the protein encoded by the PTEN gene (10q23.3). PTEN mutations are related to a variety of rare diseases referred to collectively as PTEN hamartoma tumor syndromes (PHTS), which include Cowden Syndrome, Bannayan-Riley-Ruvalcaba syndrome, Proteus Syndrome, and Proteus-like syndrome. These diseases are associated with an increased risk of malignancy and for this reason an accurate and early diagnosis is essential in order to institute cancer surveillance. PTEN is a regulator of growth and homeostasis in immune system cells, although there are limited data describing immune dysregulation caused by PTEN mutations...
2017: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/28522256/sporadic-early-onset-diffuse-gastric-cancers-have-high-frequency-of-somatic-cdh1-alterations-but-low-frequency-of-somatic-rhoa-mutations-compared-with-late-onset-cancers
#9
Soo Young Cho, Jun Won Park, Yang Liu, Young Soo Park, Ju Hee Kim, Hanna Yang, Hyejin Um, Woo Ri Ko, Byung Il Lee, Sun Young Kwon, Seung Wan Ryu, Chae Hwa Kwon, Do Youn Park, Jae-Hyuk Lee, Sang Il Lee, Kyu Sang Song, Hoon Hur, Sang-Uk Han, Heekyung Chang, Su-Jin Kim, Byung-Sik Kim, Jeong-Hwan Yook, Moon-Won Yoo, Beom-Su Kim, In-Seob Lee, Myeong-Cherl Kook, Nina Thiessen, An He, Chip Stewart, Andrew Dunford, Jaegil Kim, Juliann Shih, Gordon Saksena, Andrew D Cherniack, Steven Schumacher, Amaro-Taylor Weiner, Mara Rosenberg, Gad Getz, Eun Gyeong Yang, Min Hee Ryu, Adam J Bass, Hark Kyun Kim
BACKGROUND & AIMS: Early-onset gastric cancer, which develops in younger patients than most gastric cancers, is usually detected at advanced stages, has diffuse histologic features, and occurs more frequently in women. We investigated somatic genomic alterations associated with the unique characteristics of sporadic diffuse gastric cancers (DGCs) from younger patients. METHODS: We conducted whole exome and RNA sequence analyses of 80 resected DGC samples from patients 45 years old or younger in Korea...
May 15, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28521746/survival-rates-and-predictors-of-survival-among-colorectal-cancer-patients-in-a-malaysian-tertiary-hospital
#10
Bello Arkilla Magaji, Foong Ming Moy, April Camilla Roslani, Chee Wei Law
BACKGROUND: Colorectal cancer is the third most commonly diagnosed malignancy and the fourth leading cause of cancer-related death globally. It is the second most common cancer among both males and females in Malaysia. The economic burden of colorectal cancer is likely to increase over time owing to its current trend and aging population. Cancer survival analysis is an essential indicator for early detection and improvement in cancer treatment. However, there was a scarcity of studies concerning survival of colorectal cancer patients as well as its predictors...
May 18, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28521483/use-of-laser-capture-microdissection-allows-detection-of-loss-of-heterozygosity-in-chromosome-9p-in-breast-cancer
#11
Margarida Figueiredo Dias, Robert Blumenstein, Jose Russo
The present study was designed to determine whether loss of heterozygosity (LOH) in the p arm of chromosome 9 in invasive ductal carcinoma of the breast is detected during the neoplastic progression of the disease. Using laser capture microdissection (LCM) epithelial cells were isolated from 14 invasive ductal carcinoma cases (IDC), ductal carcinomas in situ (DCIS), normal mammary lobules, skin and/or lymph nodes of paraffin embedded tissue sections. LOH analysis of chromosome 9p was performed utilizing the microsatellite markers D9S199, D9S157, D9S171, D9S265 and D9S270...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28521443/loss-of-fas-expression-and-high-expression-of-hla-e-promoting-the-immune-escape-of-early-colorectal-cancer-cells
#12
Renxiang Huang, Dongyang Zhang, Feng Li, Zili Xiao, Meiling Wu, Dongyun Shi, Ping Xiang, Zhijun Bao
Previous studies have investigated the mechanisms of immune evasion of tumor cells in numerous types of advanced solid malignant tumor, and several types of immune preparations have been administered as antitumor adjuvant therapies. However, in the majority of studies, the efficacy of therapies has been revealed to be limited. The present study aimed to investigate the immune evasion mechanisms employed by early colorectal cancer cells and the expression of the molecules associated with immune evasion during the malignant transformation process of normal colorectal epithelial cells to measure the effects of immune intervention for early colorectal cancer, and to improve the efficacy of immunotherapy...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28521441/the-context-of-prostate-cancer-genomics-in-personalized-medicine
#13
Yanling Liu
Prostate cancer is one of the most common types of cancer in males. Heterogeneous genomic aberrations may lead to prostate cancer onset, progression and metastasis. This heterogeneity also contributes to the variety in cancer risk and outcomes, different drug responses and progression, observed between individual patients. Classical prognostic factors, including prostate-specific antigen, Gleason Score and clinical tumor staging, are not sufficient to portray the complexity of a clinically relevant cancer diagnosis, risk prognosis, treatment choice and therapy monitoring...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28521400/ovca1-expression-and-its-correlation-with-the-expression-levels-of-cyclin-d1-and-p16-in-cervical-cancer-and-intraepithelial-neoplasia
#14
Rui Tong, Qing Yang, Chunyan Wang, Fangfang Bi, Bing Jiang
The present study aimed to examine the associations between the protein and mRNA expression levels of ovarian cancer gene 1 (OVCA1), cyclin D1 and p16 and high-risk human papillomavirus (HR-HPV) infection in cervical lesions. The protein expression levels of OVCA1, cyclin D1 and p16 in 66 cases of cervical cancer, 64 cases of cervical intraepithelial neoplasia (CIN) and 34 normal cervix tissues were detected using immunohistochemistry. The mRNA expression levels of OVCA1, cyclin D1 and p16 in cervical cancer and normal cervix cells were detected using real-time polymerase chain reaction...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28521182/should-nonsmokers-be-excluded-from-early-lung-cancer-screening-with-low-dose-spiral-computed-tomography-community-based-practice-in-shanghai
#15
Xiaoyang Luo, Shanbo Zheng, Quan Liu, Shengping Wang, Yuan Li, Lei Shen, Guodong Li, Wentao Li, Yanping Zhao, Huilin Xu, Jing Wang, Xiaohua Liu, Yunjian Pan, Hong Hu, Yihua Sun, Haiyan Yang, Su Xu, Haiquan Chen
OBJECTIVE: We investigated the efficacy of early lung cancer screening with low-dose spiral computed tomography(LDCT) in both smokers and nonsmokers based on the current situation of community health service, with integration of superior resources of medical institutions at all levels in Shanghai. METHODS: From August 2013 to August 2014, we screened 11,332 (male 7144; female 4188) high-risk individuals in selected communities of Minhang, Shanghai City, for early diagnosis of lung cancer with LDCT combined with multidisciplinary comprehensive treatment pattern including minimally invasive surgery, exploring the medical service network covering prevention, diagnosis, treatment, rehabilitation, and follow-up...
May 15, 2017: Translational Oncology
https://www.readbyqxmd.com/read/28520829/association-between-combined-tmprss2-erg-and-pca3-rna-urinary-testing-and-detection-of-aggressive-prostate-cancer
#16
Martin G Sanda, Ziding Feng, David H Howard, Scott A Tomlins, Lori J Sokoll, Daniel W Chan, Meredith M Regan, Jack Groskopf, Jonathan Chipman, Dattatraya H Patil, Simpa S Salami, Douglas S Scherr, Jacob Kagan, Sudhir Srivastava, Ian M Thompson, Javed Siddiqui, Jing Fan, Aron Y Joon, Leonidas E Bantis, Mark A Rubin, Arul M Chinnayian, John T Wei, Mohamed Bidair, Adam Kibel, Daniel W Lin, Yair Lotan, Alan Partin, Samir Taneja
Importance: Potential survival benefits from treating aggressive (Gleason score, ≥7) early-stage prostate cancer are undermined by harms from unnecessary prostate biopsy and overdiagnosis of indolent disease. Objective: To evaluate the a priori primary hypothesis that combined measurement of PCA3 and TMPRSS2:ERG (T2:ERG) RNA in the urine after digital rectal examination would improve specificity over measurement of prostate-specific antigen alone for detecting cancer with Gleason score of 7 or higher...
May 18, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28516226/benefit-of-adding-digital-breast-tomosynthesis-to-digital-mammography-for-breast-cancer-screening-focused-on-cancer-characteristics-a-meta-analysis
#17
REVIEW
Seong Jong Yun, Chang-Woo Ryu, Sun Jung Rhee, Jung Kyu Ryu, Ji Young Oh
PURPOSE: We evaluated the benefit of adding digital breast tomosynthesis (DBT) to full-field digital mammography (FFDM) compared to FFDM alone for breast cancer detection, focusing on cancer characteristics. METHODS: We searched electronic databases and relevant references for published studies comparing DBT plus FFDM to FFDM alone for breast cancer screening. Pooled risk ratios (RRs) for various pathologic findings were determined using random effects models. RESULTS: Eleven eligible studies were included...
May 18, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28515940/nivolumab-induced-autoimmune-diabetes-mellitus-presenting-as-diabetic-ketoacidosis-in-a-patient-with-metastatic-lung-cancer
#18
James Luke Godwin, Shuchie Jaggi, Imali Sirisena, Pankaj Sharda, Ajay D Rao, Ranee Mehra, Colleen Veloski
BACKGROUND: Advances in cancer immunotherapy have generated encouraging results in multiple malignancies refractory to standard chemotherapies. As the use of immune checkpoint inhibitors (ICI) proliferates, the incidence of autoimmune side effects associated with these agents, termed immune related adverse events (irAE), is expected to increase. The frequency of significant irAE in ICI treated patients is about 10-20% and early recognition is critical to prevent serious morbidity and even mortality...
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28515797/circulating-nucleosomes-as-new-blood-based-biomarkers-for-detection-of-colorectal-cancer
#19
Jean-François Rahier, Anne Druez, Laurence Faugeras, Jean-Paul Martinet, Myriam Géhénot, Eléonore Josseaux, Marielle Herzog, Jake Micallef, Fabienne George, Monique Delos, Thierry De Ronde, Abdenor Badaoui, Lionel D'Hondt
BACKGROUND: Colonoscopy is currently widely accepted as the gold standard for detection of colorectal cancer (CRC) providing detection of up to 95% of pre-cancerous lesions during the procedure. However, certain limitations exist in most countries including cost and access to the procedure. Moreover, colonoscopy is an invasive technique with risk inherent to the endoscopic procedure. For this reason, alternative screening tests, in particular, fecal occult blood-based tests, have been widely adopted for frontline screening...
2017: Clinical Epigenetics
https://www.readbyqxmd.com/read/28515354/clinical-application-and-outcomes-of-sentinel-node-navigation-surgery-in-patients-with-early-gastric-cancer
#20
Takaaki Arigami, Yoshikazu Uenosono, Shigehiro Yanagita, Keishi Okubo, Takashi Kijima, Daisuke Matsushita, Masahiko Amatatsu, Takahiko Hagihara, Naoto Haraguchi, Yuko Mataki, Katsuhiko Ehi, Sumiya Ishigami, Shoji Natsugoe
Sentinel node navigation surgery (SNNS) has been recognized as a minimally invasive tool for individualized lymphadenectomy in patients with early gastric cancer (EGC). The aim of this study was to compare clinicopathological factors, adverse events, and clinical outcomes between sentinel node mapping (SNM) and SN dissection (SND) groups and assess the clinical utility of SNNS in patients with EGC. The clinical data of 157 patients with EGC, diagnosed as clinical T1N0M0 with tumors ≤ 40 mm, undergoing SNNS between March 2004 and April 2016 were retrospectively reviewed...
May 3, 2017: Oncotarget
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