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https://www.readbyqxmd.com/read/29050264/the-microrna-expression-signature-of-pancreatic-ductal-adenocarcinoma-by-rna-sequencing-anti-tumour-functions-of-the-microrna-216-cluster
#1
Keiichi Yonemori, Naohiko Seki, Tetsuya Idichi, Hiroshi Kurahara, Yusaku Osako, Keiichi Koshizuka, Takayuki Arai, Atsushi Okato, Yoshiaki Kita, Takaaki Arigami, Yuko Mataki, Yuko Kijima, Kosei Maemura, Shoji Natsugoe
We analysed the RNA sequence-based microRNA (miRNA) signature of pancreatic ductal adenocarcinoma (PDAC). Aberrantly expressed miRNAs were successfully identified in this signature. Using the PDAC signature, we focused on 4 clustered miRNAs, miR-216a-5p, miR-216a-3p, miR-216b-5p and miR-216b-3p on human chromosome 2p16.1. All members of the miR-216 cluster were significantly reduced in PDAC specimens. Ectopic expression of these miRNAs suppressed cancer cell aggressiveness, suggesting miR-216 cluster as anti-tumour miRNAs in PDAC cells...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29050179/-the-comparison-of-characters-between-invasive-micropapillary-carcinoma-and-invasive-ductal-carcinoma-not-otherwise-specified-of-the-breast
#2
B Hua, X Lu, W Z Xiao, S R He, Z Wang
Objective: To analyze the differences of clinicopathological characters and prognostic factors between invasive micropapillary carcinoma of the breast (IMPC) and invasive ductal carcinoma (IDC) not otherwise specified of the breast. Methods: Patients who were treated from June 2008 to April 2016 in Breast Center of Beijing Hospital were retrospectively analyzed to evaluate the differences between IMPC (n=59) and IDC (n=1 080). Follow-up was done every 3 to 6 months postoperatively with a deadline of July 31, 2016...
October 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/29049316/genomic-comparison-of-early-passage-conditionally-reprogrammed-breast-cancer-cells-to-their-corresponding-primary-tumors
#3
Akanksha S Mahajan, Bruna M Sugita, Anju N Duttargi, Francisco Saenz, Ewa Krawczyk, Justine N McCutcheon, Aline S Fonseca, Bhaskar Kallakury, Paula Pohlmann, Yuriy Gusev, Luciane R Cavalli
Conditionally reprogrammed cells (CRCs) are epithelial cells that are directly isolated from patients' specimens and propagated in vitro with feeder cells and a Rho kinase inhibitor. A number of these cells have been generated from biopsies of breast cancer patients, including ductal carcinoma in situ and invasive carcinomas. The characterization of their genomic signatures is essential to determine their ability to reflect the natural biology of their tumors of origin. In this study, we performed the genomic characterization of six newly established invasive breast cancer CRC cultures in comparison to the original patients' primary breast tumors (PBT) from which they derived...
2017: PloS One
https://www.readbyqxmd.com/read/29045292/ovarian-metastases-of-breast-cancers-with-signet-ring-cells-a-report-of-17-cases-including-14-krukenberg-tumors
#4
Jennifer A Bennett, Robert H Young, Ai-Ying Chuang, Melinda F Lerwill
Krukenberg tumor, defined as metastatic adenocarcinoma to the ovary containing at least 10% signet ring cells, usually arises from the stomach but can also originate from other sites. We reviewed 17 metastatic breast carcinomas to the ovary with signet ring cells to potentially identify features indicative of mammary origin as opposed to other possible primary sites. The patients ranged from 41 to 76 (mean, 53.6) yr. Fourteen had a prior history of invasive breast carcinoma (invasive ductal carcinoma, 4; invasive lobular carcinoma, 3; adenocarcinoma not otherwise specified, 3; carcinoma with ductal and lobular features, 2; and unspecified carcinoma, 2) and metastases were identified 2 to 284 (mean, 79) mo after the original diagnosis...
October 17, 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/29045181/ductal-carcinoma-in-situ-the-whole-truth
#5
Ujas Parikh, Chloe M Chhor, Cecilia L Mercado
OBJECTIVE: Ductal carcinoma in situ (DCIS) is a noninvasive malignant breast disease traditionally described as a precursor lesion to invasive breast cancer. With screening mammography, DCIS now accounts for approximately 20% of newly diagnosed cancer cases. DCIS is not well understood because of its heterogeneous nature. CONCLUSION: Studies have aimed to assess prognostic factors to characterize its risk of invasive potential; however, there still remains a lack of uniformity in workup and treatment...
October 18, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29040676/dysbindin-promotes-progression-of-pancreatic-ductal-adenocarcinoma-via-direct-activation-of-pi3k
#6
Cheng Fang, Xin Guo, Xing Lv, Ruozhe Yin, Xiaohui Lv, Fengsong Wang, Jun Zhao, Xuebiao Yao, Yong Chen
Pancreatic ductal adenocarcinoma (PDAC) represents a biggest challenge in clinic oncology due to its invasiveness and lack of targeted therapeutics. Our recent study showed that schizophrenia susceptibility factor dysbindin exhibited significant higher level in serum of PDAC patients. However, the functional relevance of dysbindin in PDAC is still unclear. Here, we show that dysbindin promotes tumor growth both in vitro and in vivo by accelerating the G1/S phase transition in cell cycle via PI3K/AKT signaling pathway...
October 6, 2017: Journal of Molecular Cell Biology
https://www.readbyqxmd.com/read/29039574/tgf-%C3%AE-1-induced-cell-migration-in-pancreatic-carcinoma-cells-is-rac1-and-nox4-dependent-and-requires-rac1-and-nox4-dependent-activation-of-p38%C3%A2-mapk
#7
David Witte, Tobias Bartscht, Roland Kaufmann, Ralph Pries, Utz Settmacher, Hendrik Lehnert, Hendrik Ungefroren
Transforming growth factor (TGF)-β promotes epithelial-mesenchymal transition and cell invasion of cancer cells in part through the small GTPase RAC1. Since RAC1 can signal through reactive oxygen species (ROS), we probed the role of the ROS-producing NADPH oxidase (NOX) and p38 mitogen-activated protein kinase (MAPK) in mediating TGF-β1/RAC1-driven random cell migration (chemokinesis). Although the NOX isoforms NOX2, 4, 5, 6, and RAC1 were readily detectable by RT-PCR in pancreatic ductal adenocarcinoma (PDAC)-derived Panc1 and Colo357 cells, only NOX4 and RAC1 were expressed at higher levels comparable to those in peripheral blood monocytes...
October 12, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29038348/stk33-promotes-growth-and-progression-of-pancreatic-cancer-as-a-critical-downstream-mediator-of-hif-1%C3%AE
#8
Fanyang Kong, Xiangyu Kong, Yiqi Du, Ying Chen, Xuan Deng, Jianwei Zhu, Jiawei Du, Lei Li, Zhiliang Jia, Dacheng Xie, Zhaoshen Li, Keping Xie
The serine/threonine kinase STK33 has been implicated in cancer cell proliferation. Here we provide evidence of a critical role for STK33 in the pathogenesis and metastatic progression of pancreatic ductal adenocarcinoma (PDAC). STK33 expression in PDAC was regulated by the hypoxia-inducible transcription factor HIF-1α. In human PDAC specimens, STK33 was overexpressed and associated with poor prognosis. Enforced STK33 expression promoted PDAC proliferation, migration, invasion and tumor growth, whereas STK33 depletion exerted opposing effects...
October 16, 2017: Cancer Research
https://www.readbyqxmd.com/read/29035379/lobular-carcinoma-in-situ-and-invasive-lobular-breast-cancer-are-characterized-by-enhanced-expression-of-transcription-factor-ap-2%C3%AE
#9
Mieke Raap, Malte Gronewold, Henriette Christgen, Silke Glage, Mohammad Bentires-Alj, Shany Koren, Patrick W Derksen, Mirjam Boelens, Jos Jonkers, Ulrich Lehmann, Friedrich Feuerhake, Elna Kuehnle, Oleg Gluz, Ronald Kates, Ulrike Nitz, Nadia Harbeck, Hans H Kreipe, Matthias Christgen
Transcription factor AP-2β (TFAP2B) regulates embryonic organ development and is overexpressed in alveolar rhabdomyosarcoma, a rare childhood malignancy. Gene expression profiling has implicated AP-2β in breast cancer (BC). This study characterizes AP-2β expression in the mammary gland and in BC. AP-2β protein expression was assessed in the normal mammary gland epithelium, in various reactive, metaplastic and pre-invasive neoplastic lesions and in two clinical BC cohorts comprising >2000 patients. BCs from various genetically engineered mouse (GEM) models were also evaluated...
October 16, 2017: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/29033675/considering-the-relationship-between-quantitative-parameters-and-prognostic-factors-in-breast-cancer-can-mean-standardized-uptake-value-be-an-alternative-to-maximum-standardized-uptake-value
#10
Reyhan Köroğlu, İsmail Köksal, Fikri Selçuk Şimşek, Fatma Gezer, Ersoy Kekilli, Bülent Ünal
It was aimed to investigate the correlation between maximum standardized uptake value (SUVmax), mean standardized uptake value (SUVmean), and retention index (RI), which represents the quantitative evaluation of the uptake of (18)F-fluoro-2-deoxy-D-glucose ((18)F-FDG) used in positron emission tomography (PET) and clinicopathologic as well as biologic prognostic factors. Forty-one women with breast cancer who were histopathologically diagnosed were included in this study. Neoadjuvant chemotherapy was applied to all patients before PET/computed tomography (CT)...
October 2017: World Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/29032282/atypical-ductal-hyperplasia-our-experience-in-the-management-and-long-term-clinical-follow-up-in-71-patients
#11
Antuono Latronico, Luca Nicosia, Angela Faggian, Francesca Abbate, Silvia Penco, Anna Bozzini, Christine Cannataci, Giovanni Mazzarol, Enrico Cassano
INTRODUCTION: Atypical ductal hyperplasia (ADH) is a high-risk benign lesion found in approximately 1-10% of breast biopsies and associated with a variable incidence of carcinoma after surgical excision. The main goal of our study is to present our experience in the management and long-term follow-up of 71 patients with ADH diagnosed on breast biopsy. MATERIALS AND METHODS: Results of 3808 breast biopsy specimens from 1 January 2000 to 31 December 2005 were analyzed to identify all biopsies which resulted in a diagnosis of ADH...
October 11, 2017: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/29026955/indolent-rib-osteomyelitis-following-breast-implant-reconstruction-an-unusual-case-and-review-of-the-literature
#12
Luke Watson, Darryl Dunn, Grant Fraser-Kirk
Rib osteomyelitis is an infrequently occurring but important complication of breast implant surgery. Although prosthetic or surgical site infection (SSI) and rib osteomyelitis as separate entities are well described in the literature, only five cases of rib or sternal osteomyelitis related to implant placement have been reported globally. Historically patients who experience this complication have not demonstrated an identifiable prevalence of the traditional risk factors associated with SSI or rib osteomyelitis...
October 12, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/29024776/update-on-tumor-infiltrating-lymphocytes-tils-in-breast-cancer-including-recommendations-to-assess-tils-in-residual-disease-after-neoadjuvant-therapy-and-in-carcinoma-in-situ-a-report-of-the-international-immuno-oncology-biomarker-working-group-on-breast-cancer
#13
REVIEW
Maria Vittoria Dieci, Nina Radosevic-Robin, Susan Fineberg, Gert van den Eynden, Nils Ternes, Frederique Penault-Llorca, Giancarlo Pruneri, Timothy M D'Alfonso, Sandra Demaria, Carlos Castaneda, Joselyn Sanchez, Sunil Badve, Stefan Michiels, Veerle Bossuyt, Federico Rojo, Baljit Singh, Torsten Nielsen, Giuseppe Viale, Seong-Rim Kim, Stephen Hewitt, Stephan Wienert, Sybille Loibl, David Rimm, Fraser Symmans, Carsten Denkert, Sylvia Adams, Sherene Loi, Roberto Salgado
Morphological evaluation of tumor-infiltrating lymphocytes (TILs) in breast cancer is gaining momentum as evidence strengthens the clinical relevance of this immunological biomarker. TILs in the post-neoadjuvant residual disease setting are acquiring increasing importance as a stratifying marker in clinical trials, considering the raising interest on immunotherapeutic strategies after neoadjuvant chemotherapy. TILs in ductal carcinoma in situ, with or without invasive carcinoma, represent an emerging area of clinical breast cancer research...
October 9, 2017: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/29024241/sentinel-node-biopsy-in-ductal-carcinoma-in-situ-of-the-breast-never-justified
#14
Luca Sorrentino, Alessandra Sartani, Daniela Bossi, Rosella Amadori, Manuela Nebuloni, Marta Truffi, Matteo Bonzini, Eliana Riggio, Diego Foschi, Fabio Corsi
Sentinel lymph node biopsy for ductal carcinoma in situ (DCIS) of the breast is not standard of care. However, nodal involvement for DCIS patients is reported. Aim of our study was to identify preoperative features predictive of nodal involvement in DCIS patients. We have retrospectively reviewed 175 patients with a preoperative diagnosis of DCIS following a vacuum-assisted breast biopsy, and undergoing surgery with sentinel node biopsy. Variables distribution was compared between patients upstaged to invasive cancer at final pathology and patients with a confirmed DCIS, and between positive vs negative sentinel node patients...
October 11, 2017: Breast Journal
https://www.readbyqxmd.com/read/29024198/mucocele-like-lesions-diagnosed-on-breast-core-biopsy-low-risk-of-upgrade-and-subsequent-carcinoma
#15
Gloria Zhang, Dana Ataya, Paulette L Lebda, Benjamin C Calhoun
Mucocele-like lesions of the breast diagnosed on core biopsy are usually excised to exclude the possibility of partial sampling of an invasive mucinous carcinoma. The goal of this study was to correlate the pathologic and radiologic features of mucocele-like lesions to determine if excision is mandatory. Over a 16 year period we identified 32 patients with mucocele-like lesions diagnosed on 27 (84%) stereotactic and 5 (16%) ultrasound-guided core biopsies. The indications for core biopsy were: calcifications in 24 (75%), a mass in 7 (22%), and a mass with calcifications in 1 (3%)...
October 11, 2017: Breast Journal
https://www.readbyqxmd.com/read/29023647/breast-cancer-risk-associated-with-atypical-hyperplasia-and-lobular-carcinoma-in-situ-initially-diagnosed-on-core-needle-biopsy
#16
Alana R Donaldson, Caitlin McCarthy, Shazia Goraya, Holly J Pederson, Charles D Sturgis, Stephen R Grobmyer, Benjamin C Calhoun
BACKGROUND: Breast cancer risk estimates for atypical lesions are based primarily on case-control studies of patients with open biopsies. The authors report the cumulative breast cancer incidence after a core biopsy diagnosis of atypical hyperplasia (ductal or lobular) or lobular carcinoma in situ. METHODS: A cohort study with central pathology review was conducted on 393 patients who had core biopsy diagnoses of atypical hyperplasia and lobular carcinoma in situ from 1995 through 2010...
October 10, 2017: Cancer
https://www.readbyqxmd.com/read/29022090/radiologic-evaluation-of-patients-undergoing-the-modified-appleby-procedure-for-locally-advanced-pancreatic-neoplasms-a-case-series
#17
Merel A T Vergauwen, Michele Perillo, Alejandro Garces-Descovich, Courtney E Barrows, A James Moser, Koenraad J Mortelé
PURPOSE: Despite advances in medical and surgical care, pancreatic ductal adenocarcinoma remains one of the most locally aggressive neoplastic processes in the abdomen. Unfortunately, most pancreatic adenocarcinomas present late and are unresectable at time of diagnosis. The modified Appleby procedure is a surgical option in patients with locally advanced pancreatic neoplasms of the body and tail with vascular invasion of the celiac trunk. To our knowledge, no radiologic journal has previously reported on the pre-operative evaluation or postoperative imaging findings of such patients...
October 11, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/29016707/minimal-clinical-impact-of-intraoperative-examination-of-sentinel-lymph-nodes-in-patients-with-ductal-carcinoma-in-situ-an-opportunity-for-improved-resource-utilization
#18
Eugene T Shin, Amy S Joehlin-Price, Doreen M Agnese, Debra L Zynger
Objectives: There is little information regarding sentinel lymph node (SLN) frozen-section examination in patients with a history of ductal carcinoma in situ (DCIS). We evaluated the usage, clinical impact, and pathology resources used for SLN cryosectioning in mastectomy cases with a DCIS history. Methods: Mastectomies with SLNs submitted from 2012 to 2013 at a tertiary care center were analyzed. Medicare reimbursement was used to estimate pathology health care expenditures of intraoperative frozen sections...
September 18, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/29016373/cancer-yield-of-incidental-breast-lesions-detected-on-chest-computed-tomography
#19
Terrance T Healey, Saurabh Agarwal, Ronak Patel, Lisa Ratanaprasatporn, Linda Ratanaprasatporn, Ana P Lourenco
OBJECTIVE: This study aimed to determine the cancer yield for abnormal breast findings initially identified on chest computed tomography (CT). MATERIALS AND METHODS: This institutional review board-approved, Health Insurance Portability and Accountability Act-compliant study retrospectively reviewed reports of 41,217 consecutive chest CT examinations done from January 1, 2006, to December 31, 2011, to identify those with breast findings noted in the impression of the report...
October 7, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28993866/cdh1-mutation-screen-in-a-brca1-2-negative-familial-breast-ovarian-cancer-cohort
#20
Frederik Stuebs, Simone Heidemann, Almuth Caliebe, Christoph Mundhenke, Norbert Arnold
PURPOSE: Mutations in the CDH1 gene are linked both to diffuse gastric cancer and invasive lobular carcinoma (ILC). A high mutation rate is found in families fulfilling the diagnostic criteria for hereditary diffuse gastric cancer. Aim of this study was to clarify whether or not there is a significant contribution of CDH1 mutations in hereditary breast-/ovarian cancer (HBOC). METHODS: Ninety-seven unrelated probands fulfilling the diagnostic criteria for HBOC (96 affected, 1 unaffected) but tested negative for pathogenic BRCA1/2 mutations were screened for CDH1 mutations by denaturing high performance liquid chromatography (DHPLC) and subsequent Sanger sequencing of suspicious and positive DHPLC results...
October 9, 2017: Archives of Gynecology and Obstetrics
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