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https://www.readbyqxmd.com/read/29457853/mesenchymal-epithelial-transition-of-pancreatic-cancer-cells-at-perineural-invasion-sites-is-induced-by-schwann-cells
#1
Yoko Fujii-Nishimura, Ken Yamazaki, Yohei Masugi, Junya Douguchi, Yutaka Kurebayashi, Naoto Kubota, Hidenori Ojima, Minoru Kitago, Masahiro Shinoda, Akinori Hashiguchi, Michiie Sakamoto
Epithelial-mesenchymal transition (EMT) promotes invasion and metastasis of pancreatic ductal adenocarcinoma (PDAC). However, the importance of its reverse process, mesenchymal-epithelial transition (MET), for PDAC remains unclear. We aimed to characterize the histological finding "focal differentiation" in PDAC at perineural invasion sites in the context of MET and to investigate the role of Schwann cells in inducing tumor MET. Tumor differentiation and immunohistochemical expressions of E-cadherin, SMAD3, and vimentin at perineural invasion sites were examined in 168 PDAC tissues...
February 19, 2018: Pathology International
https://www.readbyqxmd.com/read/29456844/an-efficient-biomarker-panel-for-diagnosis-of-breast-cancer-using-surface-enhanced-laser-desorption-ionization-time-of-flight-mass-spectrometry
#2
Turkan Yigitbasi, Gizem Calibasi-Kocal, Nihal Buyukuslu, Murat Kemal Atahan, Hakan Kupeli, Seyran Yigit, Ercument Tarcan, Yasemin Baskin
Breast cancer (BC) is the most frequently diagnosed cancer that affects women worldwide. Early detection of BC is important to improve survival rates and decrease mortality. The aim of the present study was to investigate serum biomarkers using surface-enhanced laser desorption ionization time-of-flight mass spectrometry (SELDI-TOF-MS) to distinguish patients with BC from the healthy population and patients with benign breast diseases (BBDs). A total of 62 patients with invasive ductal carcinoma, as confirmed by histopathology, and 47 non-cancerous individuals (NCIs) [16 healthy controls (HCs) and 31 patients with BBD] were enrolled in the present study...
March 2018: Biomedical Reports
https://www.readbyqxmd.com/read/29456656/comparison-of-the-diagnostic-efficacy-between-ultrasound-elastography-and-magnetic-resonance-imaging-for-breast-masses
#3
Rong Cheng, Jing Li, Li Ji, Huining Liu, Limin Zhu
The present study compared the efficacy of ultrasound elastography (UE), magnetic resonance imaging (MRI) and the combination of the two methods (UE+MRI) in the differential diagnosis of benign and malignant breast tumors. In total, 86 patients with breast masses were recruited and evaluated by UE, MRI and UE+MRI. Strain ratios of UE were calculated for the breast mass and adjacent normal tissues. In addition, the receiver operating characteristic (ROC) curve was obtained, while the sensitivity and specificity were calculated to determine the optimal cut-off point for the differential diagnosis...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29454444/minimally-invasive-pancreatoduodenectomy-is-the-incidence-of-clinically-relevant-postoperative-pancreatic-fistula-comparable-to-that-after-open-pancreatoduodenectomy
#4
Olga Kantor, Henry A Pitt, Mark S Talamonti, Kevin K Roggin, David J Bentrem, Richard A Prinz, Marshall S Baker
BACKGROUND: Studies evaluating the efficacy of minimally invasive approaches to pancreatoduodenectomy (MIS-PD) compared to open pancreatioduodenectomy (OPD) have been limited by selection bias and mixed outcomes. METHODS: ACS-NSQIP 2014-2015 pancreas procedure-targeted data were used to identify patients undergoing PD. Intention-to-treat analysis was performed. RESULTS: Of 7907 PD patients, 1277 (16%) underwent MIS-PD: 776 (61%) robotic or laparoscopic PD, 304 (24%) hybrid, and 197 (15%) unplanned conversions...
March 2018: Surgery
https://www.readbyqxmd.com/read/29453972/artemin-regulates-cxcr4-expression-to-induce-migration-and-invasion-in-pancreatic-cancer-cells-through-activation-of-nf-%C3%AE%C2%BAb-signaling
#5
Juan Wang, Hui Wang, Jun Cai, Shaoxia Du, Beibei Xin, Wei Wei, Ti Zhang, Xiaohong Shen
Pancreatic ductal adenocarcinoma (PDAC) is the most lethal human malignant tumor because of the early onset of local invasion and distant metastasis. Perineural invasion is a prominent characteristic of pancreatic adenocarcinoma, which is a multifactorial process that involves various signaling molecules from different signaling pathways. The glial cell line-derived neurotrophic factor family of ligands was reported to be involved in perineural invasion in pancreatic cancer. Artemin is one member of the glial cell line-derived neurotrophic factor family of ligands...
February 14, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29453385/prediction-of-advanced-axillary-lymph-node-metastases-ypn2-3-using-breast-mr-imaging-and-pet-ct-after-neoadjuvant-chemotherapy-in-invasive-ductal-carcinoma-patients
#6
Won Hwa Kim, Sang-Woo Lee, Hye Jung Kim, Yee Soo Chae, Shin Young Jeong, Jin Hyang Jung, Ho Yong Park, Won Kee Lee
We aimed to investigate the value of breast magnetic resonance (MR) imaging and positron emission tomography-computed tomography (PET/CT) in predicting advanced axillary lymph node (ALN) metastases (ypN2-3) after neoadjuvant chemotherapy (NAC) in invasive ductal carcinoma patients. A total of 108 patients with invasive ductal carcinoma underwent breast MR imaging and PET/CT both before and after NAC (termed initial staging and restaging, respectively). The number of positive ALNs and the short diameter (SD) of the largest ALN on breast MR imaging and maximal standardized uptake value (SUVmax) in the ALNs on PET/CT were evaluated...
February 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29452147/combination-of-kras-activation-and-pten-deletion-contributes-to-murine-hepatopancreatic-ductal-malignancy
#7
Yun-Kai Lin, Zheng Fang, Tian-Yi Jiang, Zheng-Hua Wan, Yu-Fei Pan, Yun-Han Ma, Yuan-Yuan Shi, Ye-Xiong Tan, Li-Wei Dong, Yong-Jie Zhang, Hong-Yang Wang
Kras mutations are among the most common genetic abnormalities in human neoplasms, including cholangiocarcinomas, pancreatic cancer and colon cancer. PTEN has previously been associated with cholangiocarcinoma development in murine models. Here, we have established novel mouse models of neoplasms by liver-specific and biliary-pancreatic Kras activation and PTEN deletion. By liver-specific disruption of PTEN and activation of Kras in mice caused rapid development of intrahepatic biliary epithelial proliferative lesions (Intrahepatic cholangiocarcinoma, ICC), which progress through dysplasia to invasive carcinoma...
February 13, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29449151/multiphase-evaluation-of-contrast-enhanced-endoscopic-ultrasonography-in-the-diagnosis-of-pancreatic-solid-lesions
#8
Takuya Ishikawa, Yoshiki Hirooka, Hiroki Kawashima, Eizaburo Ohno, Kiyotaka Hashizume, Kohei Funasaka, Masanao Nakamura, Ryoji Miyahara, Osamu Watanabe, Masatoshi Ishigami, Hidemi Goto
BACKGROUND/OBJECTIVES: Time-intensity curve (TIC) under contrast-enhanced EUS (CE-EUS) allows continuous and quantitative evaluation of targeted area in the pancreas. However, TIC is not always available and the procedure is complicated. We aimed to propose a simplified method by evaluating multiple phases of CE-EUS in the diagnosis of pancreatic solid lesions. METHODS: We retrospectively reviewed 210 patients with pancreatic solid lesions including 142 with pancreatic ductal cancer (PDAC), 31 with pancreatic neuroendocrine neoplasm, 13 with solid pseudopapillary neoplasm and 24 with mass-forming pancreatitis who underwent CE-EUS and achieved final diagnoses...
February 9, 2018: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/29448289/lessons-from-pathological-analysis-of-recurrent-early-esophageal-squamous-cell-neoplasia-after-complete-endoscopic-radiofrequency-ablation
#9
Wen-Lun Wang, I-Wei Chang, Chien-Chuan Chen, Chi-Yang Chang, Cheng-Hao Tseng, Chi-Ming Tai, Jaw-Town Lin, Hsiu-Po Wang, Ching-Tai Lee
BACKGROUND: Endoscopic radiofrequency ablation (RFA) is a treatment option for early esophageal squamous cell neoplasia (ESCN); however, long-term follow-up studies are lacking. The risks of local recurrence and "buried cancer" are also uncertain. METHODS: Patients with flat-type ESCN who were treated with balloon-type ± focal-type RFA were consecutively enrolled. Follow-up endoscopy was performed at 1, 3, and 6 months, and then every 6 months thereafter...
February 15, 2018: Endoscopy
https://www.readbyqxmd.com/read/29445939/a-comparison-of-two-models-for-breast-cancer-mortality-for-women-with-ductal-carcinoma-in-situ-an-seer-based-analysis
#10
Vasily Giannakeas, Victoria Sopik, Steven A Narod
BACKGROUND: Approximately 1% of patients with ductal carcinoma in situ (DCIS) will die of breast cancer within 10 years. Women who develop an invasive breast cancer after DCIS have a much greater risk of dying than those who do not and it is often stated that these deaths are a consequence of metastases from the invasive in-breast recurrence. This progression is the result of a two-step process: first local invasive recurrence and then spread beyond the breast. A large proportion of women who die of DCIS have no record of invasive recurrence...
February 14, 2018: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29445299/choosing-wisely-after-publication-of-level-i-evidence-in-breast-cancer-radiotherapy
#11
Joshua R Niska, Sameer R Keole, Barbara A Pockaj, Michele Y Halyard, Samir H Patel, Donald W Northfelt, Richard J Gray, Nabil Wasif, Carlos E Vargas, William W Wong
Background: Recent trials in early-stage breast cancer support hypofractionated whole-breast radiotherapy (WBRT) as part of breast-conserving therapy (BCT). Evidence also suggests that radiotherapy (RT) omission may be reasonable for some patients over 70 years. Among radiation-delivery techniques, intensity-modulated RT (IMRT) is more expensive than 3-dimensional conformal RT (3DCRT). Based on this evidence, in 2013, the American Society for Radiation Oncology (ASTRO) recommended hypofractionated schedules for women aged ≥50 years with early-stage breast cancer and avoiding routine use of IMRT for WBRT...
2018: Breast Cancer: Targets and Therapy
https://www.readbyqxmd.com/read/29441334/the-usefulness-of-fluorodeoxyglucose-pet-ct-for-preoperative-evaluation-of-ductal-carcinoma-in-situ
#12
Sungchul Kim, Seokjae Lee, Sangwon Kim, Seokmo Lee, Hayong Yum
Purpose: PET/CT is useful in preoperative evaluation of invasive breast cancer (IBC) to predict axillary metastasis and staging workup. The usefulness is unclear in cases of ductal carcinoma in situ (DCIS) diagnosed at biopsy before surgery, which sometimes is upgraded to IBC after definitive surgery. The aim of this study is to find out the usefulness of PET/CT on DCIS as a preoperative evaluation tool. Methods: We investigated 102 patients preoperatively diagnosed with DCIS who subsequently underwent definitive surgery between 2010 and 2015...
February 2018: Annals of Surgical Treatment and Research
https://www.readbyqxmd.com/read/29439832/factors-associated-with-positive-margins-in-women-undergoing-breast-conservation-surgery
#13
Brittany L Murphy, Judy C Boughey, Michael G Keeney, Amy E Glasgow, Jennifer M Racz, Gary L Keeney, Elizabeth B Habermann
OBJECTIVE: To identify factors predicting positive margins at lumpectomy prompting intraoperative reexcision in patients with breast cancer treated at a large referral center. PATIENTS AND METHODS: We reviewed all breast cancer lumpectomy cases managed at our institution from January 1, 2012, through December 31, 2013. Associations between rates of positive margin and patient and tumor factors were assessed using χ 2 tests and univariate and adjusted multivariate logistic regression, stratified by ductal carcinoma in situ (DCIS) or invasive cancer...
February 10, 2018: Mayo Clinic Proceedings
https://www.readbyqxmd.com/read/29436376/breast-carcinoma-in-sclerosing-adenosis-a-clinicopathological-and-immunophenotypical-analysis-on-206-lesions
#14
Bao-Hua Yu, Shao-Xian Tang, Xiao-Li Xu, Yu-Fan Cheng, Rui Bi, Ruo-Hong Shui, Xiao-Yu Tu, Hong-Fen Lu, Xiao-Yan Zhou, Wen-Tao Yang
AIMS: To fully elucidate the clinicopathological features of breast carcinoma in sclerosing adenosis (SA-BC). METHODS: Clinical and histological characteristics of 206 SA-BCs from 180 patients were retrospectively evaluated. Immunohistochemical phenotype was examined. The clinicopathological relevance of the topographical pattern of SA-BCs was analysed. RESULTS: Overall, up to 46 patients (25.6%) had contralateral cancer, either SA associated or not...
February 7, 2018: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/29435853/do-patients-whose-tumor-achieved-a-pathological-response-relapse-at-specific-sites-a-substudy-of-the-eortc-10994-big-1-00-trial
#15
Kim C Aalders, Nathan Touati, Konstantinos Tryfonidis, Mylène Annonay, Saskia Litiere, Jonas Bergh, Alexandre Bodmer, David A Cameron, Hervé R Bonnefoi
PURPOSE: To determine the sites of first distant relapse in patients with or without pCR following neoadjuvant chemotherapy in breast cancer patients enrolled in the EORTC 10994/BIG-1-00 trial. METHODS: We included patients enrolled in the EORTC 10994/BIG-1-00 trial who received at least one chemotherapy cycle before surgery and who had been diagnosed with a distant relapse. pCR was defined as no evidence of residual invasive cancer in the primary tumor and axillary lymph nodes with or without residual ductal carcinoma in situ...
February 12, 2018: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29435556/breast-biopsy-intensity-and-findings-following-breast-cancer-screening-in-women-with-and-without-a-personal-history-of-breast-cancer
#16
Diana S M Buist, Linn Abraham, Christoph I Lee, Janie M Lee, Constance Lehman, Ellen S O'Meara, Natasha K Stout, Louise M Henderson, Deirdre Hill, Karen J Wernli, Jennifer S Haas, Anna N A Tosteson, Karla Kerlikowske, Tracy Onega
Importance: There is little evidence on population-based harms and benefits of screening breast magnetic resonance imaging (MRI) in women with and without a personal history of breast cancer (PHBC). Objective: To evaluate biopsy rates and yield in the 90 days following screening (mammography vs magnetic resonance imaging with or without mammography) among women with and without a PHBC. Design, Setting, and Participants: Observational cohort study of 6 Breast Cancer Surveillance Consortium (BCSC) registries...
February 12, 2018: JAMA Internal Medicine
https://www.readbyqxmd.com/read/29434907/high-expression-of-rack1-is-associated-with-poor-prognosis-in-patients-with-pancreatic-ductal-adenocarcinoma
#17
Hailin Han, Dongmei Wang, Maowu Yang, Shenhao Wang
Receptor for activated C kinase 1 (RACK1) is associated with certain aspects of cancer biology and signaling pathways, but its function in pancreatic ductal adenocarcinoma (PDAC) remains unknown. In the present study, 157 patients with PDAC were enrolled. RACK1 mRNA and protein expression levels were analyzed in PDAC tissues and matched adjacent noncancerous tissues by reverse transcription-quantitative polymerase chain reaction and western blotting. RACK1 expression levels in paraffin-embedded PDAC tissues were determined by immunohistochemistry...
February 2018: Oncology Letters
https://www.readbyqxmd.com/read/29434878/progesterone-impairs-herceptin-effect-on-breast-cancer-cells
#18
Kamila Kitowska, Agnieszka Kowalska, Magdalena Mieszkowska, Dominika Piasecka, Andrzej C Skladanowski, Hanna M Romanska, Rafal Sadej
Breast cancer (BCa) is the most common cancer affecting women worldwide. Overexpression of human epidermal growth factor receptor 2 (HER2) occurs in ~20-25% of invasive ductal breast carcinomas and is associated with the more aggressive phenotype. Herceptin, a humanized antibody against HER2, is a standard therapy in HER2-overexpressing cases. Approximately one-third of patients relapse despite treatment. Therefore numerous studies have investigated the molecular mechanisms associated with Herceptin resistance...
February 2018: Oncology Letters
https://www.readbyqxmd.com/read/29434218/association-of-cytosolic-sialidase-neu2-with-plasma-membrane-enhances-fas-mediated-apoptosis-by-impairing-pi3k-akt-mtor-mediated-pathway-in-pancreatic-cancer-cells
#19
Shalini Nath, Chhabinath Mandal, Uttara Chatterjee, Chitra Mandal
Modulation of sialylation by sialyltransferases and sialidases plays essential role in carcinogenesis. There are few reports on sialyltransferase, however, the contribution of cytosolic sialidase (Neu2) remains unexplored in pancreatic ductal adenocarcinoma (PDAC). We observed lower expression of Neu2 in different PDAC cells, patient tissues, and a significant strong association with clinicopathological characteristics. Neu2 overexpression guided drug-resistant MIAPaCa2 and AsPC1 cells toward apoptosis as evidenced by decreased Bcl2/Bax ratio, activation of caspase-3/caspase-6/caspase-8, PARP reduction, reduced CDK2/CDK4/CDK6, and cyclin-B1/cyclin-E with unaffected caspase-9...
February 12, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29433879/expression-of-neuropeptide-y-and-its-receptors-y1-and-y2-in-pancreatic-intraepithelial-neoplasia-and-invasive-pancreatic-cancer-in-a-transgenic-mouse-model-and-human-samples-of-pancreatic-cancer
#20
Jens Waldmann, Volker Fendrich, Martin Reichert, Andreas Hecker, Detlef K Bartsch, Winfried Padberg, Julia P N Holler
BACKGROUND: Pancreatic ductal adenocarcinoma (PDAC) is among the most dismal of human malignancies. Neuropeptides have shown to be implicated in angiogenesis, tumor growth, and formation of distant metastases in various solid tumors. In the present study, we used a genetically engineered mouse model of pancreatic cancer to evaluate the impact of neuropeptide Y (NPY) and its receptors 1 (Y1) and 2 (Y2) in preneoplastic lesions and pancreatic cancer as a potential target with antiproliferative properties...
March 2018: Journal of Surgical Research
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