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https://www.readbyqxmd.com/read/28643319/-progress-of-the-application-of-optical-coherence-tomography-in-gastrointestinal-tumor-surgery
#1
Yongsheng Li, Hao Liu, Haipeng Huang, Yu Zhu, Haijun Deng, Jiang Yu, Site Luo, Li Huo, Li Lin, Huikai Xie, Guoxin Li
Optical coherence tomography (OCT) is a real-time, cross-sectional optical imaging technology. It is analogous to ultrasonography, except that OCT uses light waves instead of sound waves, and can provide three-dimensional morphological images of living tissues with a micrometer resolution. Through the use of endoscopes, needles, catheters and laparoscopes, OCT has demonstrated tremendous imaging potential in tumor surgery. The current studies suggest that OCT has potential for clinical applications in the following fields of gastrointestinal tumor surgery: (1) Early tumor detection and diagnosis: OCT can distinguish differences between polyp tissue, normal tissue and malignant tissue...
June 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28640835/bilateral-blockade-of-mek-and-pi3k-mediated-pathways-downstream-of-mutant-kras-as-a-treatment-approach-for-peritoneal-mucinous-malignancies
#2
Murali R Kuracha, Peter Thomas, Brian W Loggie, Venkatesh Govindarajan
Mucinous colorectal adenocarcinomas (MCAs) are clinically and morphologically distinct from nonmucinous colorectal cancers (CRCs), show a distinct spectrum of genetic alterations (higher KRAS mutations, lower p53, high MUC2), exhibit more aggressive behavior (more prone to peritoneal dissemination and lymph node involvement) and are associated with poorer response to chemotherapy with limited treatment options. Here, we report the effectiveness of combinatorial targeting of two KRAS-mediated parallel pathways in reducing MUC2 production and mucinous tumor growth in vitro and in vivo...
2017: PloS One
https://www.readbyqxmd.com/read/28640700/cns-tumors-in-neurofibromatosis
#3
Jian Campian, David H Gutmann
Neurofibromatosis (NF) encompasses a group of distinct genetic disorders in which affected children and adults are prone to the development of benign and malignant tumors of the nervous system. The purpose of this review is to discuss the spectrum of CNS tumors arising in individuals with NF type 1 (NF1) and NF type 2 (NF2), their pathogenic etiologies, and the rational treatment options for people with these neoplasms. This article is a review of preclinical and clinical data focused on the treatment of the most common CNS tumors encountered in children and adults with NF1 and NF2...
June 22, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28639735/neonates-with-cancer-and-causes-of-death-lessons-from-615-cases-in-the-seer-databases
#4
Ahmad S Alfaar, Waleed M Hassan, Mohamed Sabry Bakry, Ibrahim Qaddoumi
Neonatal tumors are rare with no standard treatment approaches to these diseases, and the patients experience poor outcomes. Our aim was to determine the distribution of cancers affecting neonates and compare survival between these cancers and older children. We analyzed SEER data (1973-2007) from patients who were younger than 2 years at diagnosis of malignancy. Special permission was granted to access the detailed (i.e., age in months) data of those patients. The Chi-square Log-rank test was used to compare survival between neonates (aged <1 month) and older children (>1 month to <2 years)...
June 22, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28631565/genetic-and-epigenetic-alterations-affecting-park-2-expression-in-cervical-neoplasm-among-north-indian-patients
#5
Afreen Naseem, Zafar Iqbal Bhat, Ponnusamy Kalaiarasan, Bhupender Kumar, Gauri Gandhi, M Moshahid Alam Rizvi
The recent investigation on PARK-2, a putative tumor suppressor gene, has found that it has been altered in multiple human malignancies. However, the clinical impact of PARK-2 alteration in uterine cervix carcinoma has not yet been studied. Therefore, we aimed to examine mutations, promoter hypermethylation, and protein expression of PARK-2 among the North Indian patients and their association with clinical parameters to evaluate the implication of PARK-2 in the genesis of cervical cancer. A total of 168 patient samples were processed for mutational analysis by single-strand conformation polymorphism, sequencing, and further in silico analysis of the identified mutations...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28629928/safety-and-efficacy-of-endovascular-fiducial-marker-insertion-for-cyberknife-stereotactic-radiation-therapy-planning-in-early-stage-lung-cancer
#6
Mikael Mongeon, Florence Thibault, Carl Chartrand-Lefebvre, Andrei-Bogdan Gorgos, Gilles Soulez, Edith Filion, Eric Therasse
PURPOSE: To evaluate the safety and efficacy of endovascular fiducial markers (EVFMs) for CyberKnife stereotactic radiation therapy (RT) of malignant lung neoplasms in patients with contraindications to percutaneous fiducial marker (PTFM) placement. MATERIALS AND METHODS: Between January 2011 and December 2013, 15 patients (7 men and 8 women) aged 59-87 years (mean, 73 y) underwent EVFM placement and 109 patients (54 men and 55 women) aged 55-92 years (mean, 73 y) underwent 114 PTFM placements...
June 16, 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/28624801/bromodomain-inhibition-shows-antitumoral-activity-in-mice-and-human-luminal-breast-cancer
#7
Montserrat Pérez-Salvia, Laia Simó-Riudalbas, Pere Llinàs-Arias, Laura Roa, Fernando Setien, Marta Soler, Manuel Castro de Moura, James E Bradner, Eva Gonzalez-Suarez, Catia Moutinho, Manel Esteller
BET bromodomain inhibitors, which have an antitumoral effect against various solid cancer tumor types, have not been studied in detail in luminal breast cancer, despite the prevalence of this subtype of mammary malignancy. Here we demonstrate that the BET bromodomain inhibitor JQ1 exerts growth-inhibitory activity in human luminal breast cancer cell lines associated with a depletion of the C-MYC oncogene, but does not alter the expression levels of the BRD4 bromodomain protein. Interestingly, expression microarray analyses indicate that, upon JQ1 administration, the antitumoral phenotype also involves downregulation of relevant breast cancer oncogenes such as the Breast Carcinoma-Amplified Sequence 1 (BCAS1) and the PDZ Domain-Containing 1 (PDZK1)...
May 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28621320/genomic-analysis-of-follicular-dendritic-cell-sarcoma-by-molecular-inversion-probe-array-reveals-tumor-suppressor-driven-biology
#8
Erica F Andersen, Christian N Paxton, Dennis P O'Malley, Abner Louissaint, Jason L Hornick, Gabriel K Griffin, Yuri Fedoriw, Young S Kim, Lawrence M Weiss, Sherrie L Perkins, Sarah T South
Follicular dendritic cell sarcoma is a rare malignant neoplasm of dendritic cell origin that is currently poorly characterized by genetic studies. To investigate whether recurrent genomic alterations may underlie the biology of follicular dendritic cell sarcoma and to identify potential contributory regions and genes, molecular inversion probe array analysis was performed on 14 independent formalin-fixed, paraffin-embedded samples. Abnormal genomic profiles were observed in 11 out of 14 (79%) cases. The majority showed extensive genomic complexity that was predominantly represented by hemizygous losses affecting multiple chromosomes...
June 16, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28620008/pten-dicer1-fh-and-their-associated-tumor-susceptibility-syndromes-clinical-features-genetics-and-surveillance-recommendations-in-childhood
#9
REVIEW
Kris Ann P Schultz, Surya P Rednam, Junne Kamihara, Leslie Doros, Maria Isabel Achatz, Jonathan D Wasserman, Lisa R Diller, Laurence Brugières, Harriet Druker, Katherine A Schneider, Rose B McGee, William D Foulkes
PTEN hamartoma tumor syndrome (PHTS), DICER1 syndrome, and hereditary leiomyomatosis and renal cell cancer (HLRCC) syndrome are pleiotropic tumor predisposition syndromes that include benign and malignant neoplasms affecting adults and children. PHTS includes several disorders with shared and distinct clinical features. These are associated with elevated lifetime risk of breast, thyroid, endometrial, colorectal, and renal cancers as well as melanoma. Thyroid cancer represents the predominant cancer risk under age 20 years...
June 15, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28619062/platinum-containing-compound-platinum-pyrithione-suppresses-ovarian-tumor-proliferation-through-proteasome-inhibition
#10
Hongbiao Huang, Ni Liu, Yuning Liao, Ningning Liu, Jianyu Cai, Xiaohong Xia, Zhiqiang Guo, Yanling Li, Qirong Wen, Qi Yin, Yan Liu, Qingxia Wu, Dhivya Rajakumar, Xiujie Sheng, Jinbao Liu
BACKGROUND: Ovarian carcinoma is one of the most aggressive gynecological malignant neoplasms and makes up 25-30% of all cancer cases of the female genital tract. Currently, resistance to traditional chemotherapy is a great challenge for patients with Epithelial ovarian cancer (EOC). Therefore, identifying novel agents for EOC treatment is essential and urgent. METHOD: MTS assay was used to analyze the cell viability and proliferation of cancer cells. Flow cytometry was employed to analyze cell cycle distribution and cell apoptosis...
June 15, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28614209/newly-described-entities-in-salivary-gland-pathology
#11
Alena Skálová, Douglas R Gnepp, James S Lewis, Jennifer L Hunt, Justin A Bishop, Henrik Hellquist, Alessandra Rinaldo, Vincent Vander Poorten, Alfio Ferlito
Salivary glands may give rise to a wide spectrum of different tumors. This review concentrates on 4 salivary gland tumors that have been accepted in the recent literature as new neoplastic entities: mammary analog secretory carcinoma, cribriform adenocarcinoma of minor salivary glands (CASG), sclerosing polycystic adenosis/adenoma (SPA), and the mucinous/secretory variant of myoepithelioma. Mammary analog secretory carcinoma is a distinctive low-grade malignant salivary cancer that harbors a characteristic chromosomal translocation, t(12;15) (p13;q25), resulting in an ETV6-NTRK3 fusion...
June 13, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28611292/ring-finger-protein-125-as-a-potential-highly-aggressive-and-unfavorable-prognostic-biomarker-promotes-the-invasion-and-metastasis-of-human-gallbladder-cancers-via-activating-the-tgf-%C3%AE-1-smad3-id1-signaling-pathway
#12
Zhong-Yan Liu, Jin Cao, Jing-Tao Zhang, Guo-Li Xu, Xin-Ping Li, Fang-Tao Wang, Kamar Hasan Ansari, Hassan Mohamed, Yue-Zu Fan
Human gallbladder cancer (GBC) is a lethal aggressive malignant neoplasm. Identification of potential molecular biomarkers and development of targeted therapeutics for GBC patients is very necessary. In this study, we firstly investigated the correlation between ring finger protein 125 (RNF125) expression and the metastasis and prognosis of GBC, and the underlying molecular mechanism. RNF125 expression in a cohort of GBC tissues was examined; its correlation with clinicopathological and prognostic factors of GBC patients was analyzed...
May 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28610403/functional-disability-in-women-submitted-to-breast-cancer-treatment
#13
Nayara Priscila Dantas de Oliveira, Thais Sousa Rodrigues Guedes, Ayrton Martins Holanda, Mariane Albuquerque Reis, Clecia Patrocínio da Silva, Barbara Layse Rocha e Silva, Gilmara Celli Maia de Almeida, Dyego Leandro Bezerra de Souza
The objective of the study presented herein was to verify the prevalence of functional disability and its associated factors in women submitted to breast cancer treatment. A cross-sectional study was carried out, in 101 women diagnosed with malignant breast cancer neoplasm, who underwent cancer treatment at least 12 months before the study, and remained under clinical monitoring. Functional disability was measured by the DASH instrument. Data collection included variables related to socioeconomic characteristics, life habits, health conditions, clinical tumor characteristics and therapeutic approach...
May 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28603895/metastatic-neoplasms-to-the-pancreas-diagnosed-by-fine-needle-aspiration-biopsy-cytology-a-15-year-retrospective-analysis
#14
Sasha L T Raymond, Deanne Yugawa, Karen H F Chang, Brandy Ena, Pamela S Tauchi-Nishi
BACKGROUND: Metastatic tumors to the pancreas are rarely encountered and diagnostically challenging. We aspired to determine the incidence and origin of all metastases to the pancreas at our institution, and to examine their clinicopathologic and cytomorphologic features. We also sought to ascertain the effect of endoscopic ultrasound (EUS) guidance implementation. METHODS: A search of our database was undertaken to review all pancreatic FNA and/or CNB examined from January 2000 through December 2014...
June 11, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28602452/disease-severity-presentation-and-clinical-outcomes-among-adolescents-with-malignant-breast-neoplasms-a-20-year-population-based-outcomes-study-from-the-seer-database-1973-2009
#15
Vijayashree Murthy, Shonali Pawar, Ronald S Chamberlain
INTRODUCTION: Primary breast cancer in adolescents is extremely rare and thus is not widely studied. This study aimed to evaluate trends, characteristics, and outcomes among a cohort of adolescents with breast cancer. PATIENTS AND METHODS: A total of 657,712 female patients with breast cancer from Surveillance Epidemiology and End Results (SEER) database (1973-2009) were analyzed, and 91 adolescents were identified. Three age groups (under 20 years, 20-50 years or premenopausal, and > 50 years or postmenopausal) were compared for tumor size, stage, receptor status, and outcomes...
May 8, 2017: Clinical Breast Cancer
https://www.readbyqxmd.com/read/28600337/high-throughput-sequencing-for-noninvasive-disease-detection-in-hematologic-malignancies
#16
Florian Scherer, David M Kurtz, Maximilian Diehn, Ash A Alizadeh
Noninvasive monitoring of minimal residual disease (MRD) has led to significant advances in personalized management of patients with hematologic malignancies. Improved therapeutic options and prolonged survival have further increased the need for sensitive tumor assessment that can inform treatment decisions and patient outcomes. At diagnosis or relapse of most hematologic neoplasms, malignant cells are often easily accessible in the blood as circulating tumor cells (CTCs), making them ideal targets to noninvasively profile the molecular features of each patient...
June 9, 2017: Blood
https://www.readbyqxmd.com/read/28599697/paraneoplastic-cushing-syndrome-due-to-wilm-s-tumor
#17
Mahwish Faizan, Jaida Manzoor, Muhammad Saleem, Saadia Anwar, Qaiser Mehmood, Ambreen Hameed, Agha Shabbir Ali
Paraneoplastic syndromes are rare disorders that are triggered by an altered immune system response to neoplasm. Paraneoplastic syndromes may be the first or the most prominent manifestations of cancer. Wilm's tumor is the most frequent pediatric renal malignancy and usually presents with abdominal mass. Unusual presentations like acquired von Willebrand disease, sudden death due to pulmonary embolism and Cushing syndrome have been described in the literature. Cushing syndrome, as the presenting symptom of a malignant renal tumor in children, is a very rare entity...
May 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28598229/autophagy-in-natural-and-therapy-driven-anticancer-immunosurveillance
#18
Federico Pietrocola, José Manuel Bravo-San Pedro, Lorenzo Galluzzi, Guido Kroemer
Autophagy is primordial for the maintenance of metabolic and genetic homeostasis in all eukaryotic organisms. Owing to its cell-intrinsic effects, autophagy robustly inhibits malignant transformation, yet can support the progression of established neoplasms as well as their resistance to conventional treatments. The notion that autophagy inhibition sensitizes neoplastic cells to chemotherapy and radiation therapy rivals with the capacity of autophagy to contribute to natural and therapy-driven anticancer immunosurveillance via a multitude of mechanisms...
June 9, 2017: Autophagy
https://www.readbyqxmd.com/read/28597929/next-generation-sequencing-of-oncogenes-and-tumor-suppressor-genes-in-odontogenic-myxomas
#19
Jean Nunes Dos Santos, Ernesto Santos Sousa Neto, Josiane Alves França, Marina Gonçalves Diniz, Rennan Garcias Moreira, Wagner Henriques Castro, Ricardo Santiago Gomez, Silvia Ferreira de Sousa, Carolina Cavalieri Gomes
BACKGROUND: Mutations previously considered drivers of malignant neoplasms also occur in benign tumors. From the biological perspective, the study of malignant and benign neoplasms is equally relevant. The study of rare tumors contributes to the understanding of the more common ones, as both could share the same hallmark genetic drivers. The identification of driver mutations in benign tumors is facilitated by the fact that they harbor quiet genomes. Pathogenic mutations have being described in benign epithelial odontogenic tumors, such as ameloblastomas and adenomatoid odontogenic tumors...
June 8, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/28597078/spectrum-of-genetic-mutations-in-de-novo-punlmp-of-the-urinary-bladder
#20
Maria Del Carmen Rodriguez Pena, Aline C Tregnago, Marie-Lisa Eich, Simeon Springer, Yuxuan Wang, Diana Taheri, Dilek Ertoy, Kazutoshi Fujita, Stephania M Bezerra, Isabela W Cunha, Maria Rosaria Raspollini, Lijia Yu, Trinity J Bivalacqua, Nickolas Papadopoulos, Kenneth W Kinzler, Bert Vogelstein, George J Netto
Our group and others have previously demonstrated the presence of TERT promoter mutations (TERT-mut) in 60-80% of urothelial carcinomas and some of their histologic variants. Five other genes have been frequently implicated in bladder cancer: FGRF3, TP53, PIK3CA, HRAS, and CDKN2A. In the current study, we sought to determine the prevalence of mutations in TERT and these five other genes in de novo papillary urothelial neoplasms of low malignant potential (PUNLMP) of the urinary bladder. A retrospective search of our archives for PUNLMP was performed and 30 de novo cases were identified and included in the study...
June 8, 2017: Virchows Archiv: An International Journal of Pathology
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