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https://www.readbyqxmd.com/read/29149426/relationship-between-lat1-expression-and-resistance-to-chemotherapy-in-pancreatic-ductal-adenocarcinoma
#1
Bolag Altan, Kyoichi Kaira, Akira Watanabe, Norio Kubo, Pinjie Bao, Gantumur Dolgormaa, Erkhem-Ochir Bilguun, Kenichiro Araki, Yoshikatsu Kanai, Takehiko Yokobori, Tetsunari Oyama, Masahiko Nishiyama, Hiroyuki Kuwano, Ken Shirabe
PURPOSE: L-type amino acid transporter 1 (LAT1) is linked to tumor cell proliferation, angiogenesis, and survival in various human cancers. Although the expression of LAT1 was identified as a significant prognostic predictor after surgery in patients with pancreatic ductal adenocarcinoma (PDAC), little is known about the clinical significance of LAT1 as a chemotherapeutic resistance factor in PDAC. METHODS: A total of 110 patients with surgically resected PDAC were retrospectively reviewed as the training set...
November 17, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/29149259/pancreatic-cancer-incidence-trends-evidence-from-the-surveillance-epidemiology-and-end-results-seer-population-based-data
#2
Vanessa L Gordon-Dseagu, Susan S Devesa, Michael Goggins, Rachael Stolzenberg-Solomon
Background: Annual pancreatic cancer incidence rates have been increasing. We examine pancreatic cancer incidence trends by demographics and histologic type. Methods: Data from the Surveillance, Epidemiology and End Results (SEER) registries were available to assess temporal trends and pancreatic cancer rates from 1974 to 2013. Results: Pancreatic cancer incidence rates declined between the 1970s and 1990s but increased from 1994 to 2013 among White males...
November 14, 2017: International Journal of Epidemiology
https://www.readbyqxmd.com/read/29148540/single-cell-heterogeneity-in-ductal-carcinoma-in-situ-of-breast
#3
Michael J Gerdes, Yesim Gökmen-Polar, Yunxia Sui, Alberto Santamaria Pang, Nicole LaPlante, Adrian L Harris, Puay-Hoon Tan, Fiona Ginty, Sunil S Badve
Heterogeneous patterns of mutations and RNA expression have been well documented in invasive cancers. However, technological challenges have limited the ability to study heterogeneity of protein expression. This is particularly true for pre-invasive lesions such as ductal carcinoma in situ of the breast. Cell-level heterogeneity in ductal carcinoma in situ was analyzed in a single 5 μm tissue section using a multiplexed immunofluorescence analysis of 11 disease-related markers (EGFR, HER2, HER4, S6, pmTOR, CD44v6, SLC7A5 and CD10, CD4, CD8 and CD20, plus pan-cytokeratin, pan-cadherin, DAPI, and Na+K+ATPase for cell segmentation)...
November 17, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29147902/expression-of-dj-1-in-cancer-cells-its-correlation-with-clinical-significance
#4
Takahiko Kawate, Benio Tsuchiya, Keiichi Iwaya
Upregulation of DJ-1 mRNA is commonly observed in various human cancers such as ductal carcinoma of the breast, non-small cell carcinoma of the lung, pancreatic duct adenocarcinoma, urinary transitional cell carcinoma, and gynecologic carcinoma. At the protein level, intensity and intracellular localization of DJ-1 expression is varied, and the DJ-1 protein regulates cancer progression, clinical aggressiveness, differentiation, cancer cell morphology, and drug sensitivity. Thus, DJ-1 plays a critical role in cancer...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29147622/factors-released-by-the-tumor-far-microenvironment-are-decisive-for-pancreatic-adenocarcinoma-development-and-progression
#5
REVIEW
Juan L Iovanna, Daniel Closa
The REG3β protein was identified more than 2 decades ago, but its role in PDAC development was only recently reported. In Pancreatic Ductal Adenocarcinoma (PDAC), REG3β protein is expressed and released by the far microenvironment, which is situated out of the tumor, at the periphery of the tumor mass, and is part of the healthy peri-tumoral region. This compartment is completely unrelated to the classical microenvironment that corresponds to the intra-tumoral stoma. Clinically relevant, the far microenvironment, and the factors released by it, could be novel and original therapeutic targets for treating patients with a PDAC...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/29147434/acute-radiation-induced-changes-in-sprague-dawley-rat-submandibular-glands-a-histomorphometric-analysis
#6
Manu Krishnan, Aatish Tennavan, Seema Saraswathy, Tarun Sekhri, Ajay Kumar Singh, Velu Nair
Background: Radiation-induced xerostomia is a distressing clinical condition that starts appearing from the initial stages of radiotherapy in head and neck cancer patients. Though submandibular glands contribute to maximum of the "resting salivary" secretions, most of the acute xerostomia experiments so far reported have been on animal parotid glands. Therefore, we assessed and quantified the histologic changes in submandibular glands of Sprague-Dawley (SD) rats using histomorphometry, 24 hours after radiation...
April 2017: World Journal of Oncology
https://www.readbyqxmd.com/read/29146271/factors-affecting-the-under-diagnosis-of-atypical-ductal-hyperplasia-diagnosed-by-core-needle-biopsies-a-10-year-retrospective-study-and-review-of-the-literature
#7
Michael Co, Ava Kwong, Tony Shek
INTRODUCTION: Due to the possibility of underestimation, surgical excision is usually offered to patients with atypical ductal hyperplasia (ADH) diagnosed with core needle biopsy (CNB). Here we review the 10-year data of patients with ADH diagnosed by CNB, aiming to identify the factors associated with under-diagnosis. METHODS: Retrospective review of database from 1st Jan 2005 to 31st Dec 2014 was performed; patients with ADH diagnosed by CNB were identified. Diagnosis upgrade rate and its risk factors were evaluated...
November 13, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/29145270/study-on-the-adverse-effects-following-chemotherapy-for-breast-cancer-diagnosis-during-pregnancy-the-first-case-report-in-china
#8
Xin Ye, Qi He, Xiaoyun Zhou
RATIONALE: Treatment of breast cancer during pregnancy (BCP) remains a challenge to physicians. Surgery and chemotherapy during pregnancy are widely used for the treatment of BCP. Herein, we reported 3 Chinese patients with BCP who underwent chemotherapy during pregnancy and were followed up for adverse effects. PATIENT CONCERNS: Three female patients (case 1, case 2, and case 3) of 37-, 32-, and 28-year-old with breast masses were enrolled. Case 1 had been pregnant for over 4 months, case 2 over 7 months, and case 3 for 7 months...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29145260/reversible-severe-fatty-liver-induced-by-capecitabine-a-case-report
#9
Yiyan Jiang, Qiancheng He, Suxia Li, Chang Shi, Xiaolei Yang
RATIONALE: Capecitabine (CAP) is a chemotherapeutic agent used to treat breast and gastrointestinal cancers. The most common adverse reactions of CAP primarily included gastrointestinal and dermatological effects. Whereas, the CAP-induced fatty liver had never been reported. PATIENT CONCERNS: In this study, a-69-year old female presented a history of hypertension with regulated blood pressure, whereas diabetes mellitus, hyperlipidemia, and hepatitis were excluded...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29145250/consort-independent-prognostic-value-of-asphericity-of-pretherapeutic-f-18-fdg-uptake-by-primary-tumors-in-patients-with-breast-cancer
#10
Ji-Hoon Jung, Seung Hyun Son, Do-Hoon Kim, Jeeyeon Lee, Shin Young Jeong, Sang-Woo Lee, Ho Yong Park, Jaetae Lee, Byeong-Cheol Ahn
BACKGROUND: The aim of this study was to evaluate the prognostic implication of asphericity (ASP); spatial irregularity; of pretherapeutic F 2-deoxy-2-fluoro-D-glucose (F FDG) tumor uptake in patients with invasive ductal carcinoma (IDC) of the breast. METHODS: One hundred thirty-one female IDC patients (mean age = 48.1 ± 10.4 years), with pathological tumor size greater than 2 cm were retrospectively evaluated using F FDG positron emission tomography/computed tomography (PET/CT)...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29144412/pancreatic-cancer-chemoresistance-to-gemcitabine
#11
REVIEW
Manoj Amrutkar, Ivar P Gladhaug
Pancreatic ductal adenocarcinoma (PDAC), commonly referred to as pancreatic cancer, ranks among the leading causes of cancer-related deaths in the Western world due to disease presentation at an advanced stage, early metastasis and generally a very limited response to chemotherapy or radiotherapy. Gemcitabine remains a cornerstone of PDAC treatment in all stages of the disease despite suboptimal clinical effects primarily caused by molecular mechanisms limiting its cellular uptake and activation and overall efficacy, as well as the development of chemoresistance within weeks of treatment initiation...
November 16, 2017: Cancers
https://www.readbyqxmd.com/read/29144159/shear-wave-elastography-quantitative-assessment-of-the-male-breast-added-value-to-distinguish-benign-and-malignant-palpable-masses
#12
Amandine Crombe, Gabrielle Hurtevent-Labrot, Maryam Asad-Syed, Jean Palussiere, Gaetan MacGrogan, Michèle Kind, Stéphane Ferron
OBJECTIVE: To evaluate the ability of shear-wave elastography (SWE) to distinguish between benign and malignant palpable masses of the adult male breast. METHODS: Clinical examination, mammography, B-mode and Doppler ultrasound (US) findings and SWE quantitative parameters were compared in 50 benign lesions (including 40 gynecomastias) and 15 malignant lesions (invasive ductal carcinomas) from 65 patients who were consecutively addressed for specialized advice at our comprehensive cancer center...
November 16, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29143875/the-role-of-18f-fdg-pet-ct-and-pet-mri-in-pancreatic-ductal-adenocarcinoma
#13
Randy Yeh, Laurent Dercle, Ishan Garg, Zhen Jane Wang, David M Hough, Ajit H Goenka
Pancreatic ductal adenocarcinoma (PDAC) remains a difficult disease to treat and continues to portend a poor prognosis, as most patients are unresectable at diagnosis. 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET) combined with CT (PET/CT) has been a cornerstone in oncological imaging of different cancers; however, the role of PET/CT in PDAC is continually evolving and currently not well established. Studies have shown the potential of PET/CT in guiding the management of patients with PDAC, with possible added benefit over anatomic imaging with CT or MRI in certain scenarios...
November 16, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/29143337/intraductal-papillary-mucinous-neoplasm-of-the-pancreas-rapidly-xenografts-in-chicken-eggs-and-predicts-aggressiveness
#14
Zhefu Zhao, Nathalie Bauer, Ewa Aleksandrowicz, Libo Yin, Jury Gladkich, Wolfgang Gross, Jörg Kaiser, Thilo Hackert, Oliver Strobel, Ingrid Herr
Intraductal papillary mucinous neoplasm (IPMN) of the pancreas has a high risk of progressing to invasive pancreatic ductal adenocarcinoma (PDA), but experimental models for IPMN are largely missing. New experimental systems for the molecular characterization of IPMN and for personalized prognosis and treatment options for IPMN are urgently needed. We analyzed the potential use of fertilized chicken eggs for the culture of freshly resected IPMN tissue. We transplanted 49 freshly resected IPMN tissues into eggs and compared the growth characteristics to IPMN tissues transplanted into mice; this was followed by an analysis of histology, morphology and marker expression...
November 16, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29142588/characterization-of-hormonal-receptors-and-human-epidermal-growth-factor-receptor-2-in-tissues-of-women-with-breast-cancer-at-muhimbili-national-hospital-dar-es-salaam-tanzania
#15
Amos Rodger Mwakigonja, Nyanda Elias Lushina, Ally Mwanga
Background: Breast cancer is a leading cause of morbidity and deaths among women worldwide. In Tanzania there is no published data on human epidermal growth receptor-2 (HER2/neu) expression in breast carcinoma. Hormonal receptors and HER2/neu status reportedly influence post-mastectomy adjuvant therapy and predict treatment outcome and prognosis. Here we evaluate hormonal receptors and HER-2 status in biopsies of women with breast cancer at Muhimbili National Hospital (MNH). Methods: A cross-sectional study of female breast post-modified radical mastectomy (MRM)/incisional biopsies confirmed to be carcinoma at the Histopathology Unit (January-December 2013)...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/29142470/relationship-between-autophagy-and-perineural-invasion-clinicopathological-features-and-prognosis-in-pancreatic-cancer
#16
Yan-Hui Yang, Jiang-Bo Liu, Yang Gui, Liang-Liang Lei, Shui-Jun Zhang
AIM: To investigate the relationship between autophagy and perineural invasion (PNI), clinical features, and prognosis in patients with pancreatic cancer. METHODS: Clinical and pathological data were retrospectively collected from 109 patients with pancreatic ductal adenocarcinoma who underwent radical resection at the First Affiliated Hospital of Zhengzhou University from January 2011 to August 2016. Expression levels of the autophagy-related protein microtubule-associated protein 1A/1B-light chain 3 (LC3) and PNI marker ubiquitin carboxy-terminal hydrolase (UCH) in pancreatic cancer tissues were detected by immunohistochemistry...
October 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29142242/emergent-patterns-of-collective-cell-migration-under-tubular-confinement
#17
Wang Xi, Surabhi Sonam, Thuan Beng Saw, Benoit Ladoux, Chwee Teck Lim
Collective epithelial behaviors are essential for the development of lumens in organs. However, conventional assays of planar systems fail to replicate cell cohorts of tubular structures that advance in concerted ways on out-of-plane curved and confined surfaces, such as ductal elongation in vivo. Here, we mimic such coordinated tissue migration by forming lumens of epithelial cell sheets inside microtubes of 1-10 cell lengths in diameter. We show that these cell tubes reproduce the physiological apical-basal polarity, and have actin alignment, cell orientation, tissue organization, and migration modes that depend on the extent of tubular confinement and/or curvature...
November 15, 2017: Nature Communications
https://www.readbyqxmd.com/read/29142206/egfr-conjunct-fscn1-as-a-novel-therapeutic-strategy-in-triple-negative-breast-cancer
#18
Chao-Qun Wang, Yang Li, Bi-Fei Huang, Yong-Ming Zhao, Hui Yuan, Dongfang Guo, Chen-Ming Su, Gui-Nv Hu, Qian Wang, Tengyun Long, Yan Wang, Chih-Hsin Tang, Xiaoni Li
Emerging evidence indicates that Fascin-1 (FSCN1) may possess a causal role in the development of several types of cancers and serves as a novel biomarker of aggressiveness in certain carcinomas. However, the regulatory mechanism of FSCN1 in triple-negative breast cancer (TNBC) cell invasion and migration is still largely unknown. In our study, we observed that the FSCN1 expression rates were significantly higher in invasive ductal carcinoma, compared with both usual ductal hyperplasia and ductal carcinoma in situ...
November 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29141872/mir-23a-acts-as-an-oncogene-in-pancreatic-carcinoma-by-targeting-foxp2
#19
Hongliang Diao, Zhou Ye, Renyi Qin
MicroRNAs have been reported to play an important role in tumor development and progression by targeting oncogenes and tumor suppressors. miR-23a has been described as significantly upregulated in multiple cancers and involved in tumorigenesis. The aim of this study was to evaluate the potential roles of miR-23a in pancreatic ductal adenocarcinoma (PDAC). We found that miR-23a level was significantly increased in tissues of PDAC compared with that in the control by real-time PCR. FOXP2 expression was downregulated and inversely correlated with miR-23a...
November 14, 2017: Journal of Investigative Medicine: the Official Publication of the American Federation for Clinical Research
https://www.readbyqxmd.com/read/29141852/collagen-alignment-as-a-predictor-of-recurrence-after-ductal-carcinoma-in-situ
#20
Matthew W Conklin, Ronald E Gangnon, Brian L Sprague, Lisa van Germert, John M Hampton, Kevin W Eliceiri, Jeremy S Bredfeldt, Yuming Liu, Nuntida Surachaicharn, Polly A Newcomb, Andreas Friedl, Patricia Keely, Amy Trentham-Dietz
BACKGROUND: Collagen fibers surrounding breast ducts may influence breast cancer progression. Syndecan-1 interacts with constituents in the extracellular matrix, including collagen fibers, and may contribute to cancer cell migration. Thus, the orientation of collagen fibers surrounding ductal carcinoma in situ (DCIS) lesions and stromal syndecan-1 expression may predict recurrence. METHODS: We evaluated collagen fiber alignment and syndecan-1 expression in 227 women diagnosed with DCIS in 1995-2006 followed through 2014 (median 14...
November 15, 2017: Cancer Epidemiology, Biomarkers & Prevention
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