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https://www.readbyqxmd.com/read/28707729/sox11-promotes-invasive-growth-and-dcis-progression
#1
Erik Oliemuller, Naoko Kogata, Philip Bland, Divya Kriplani, Frances Daley, Syed Haider, Vandna Shah, Elinor J Sawyer, Beatrice A Howard
Here, we show that SOX11, an embryonic mammary marker, normally silent in postnatal breast cells, is expressed in many ER-negative (ER-) preinvasive DCIS lesions. Mature mammary epithelial cells engineered to express SOX11 displayed alterations in progenitor cell populations, including an expanded basal-like population with increased ALDH activity, and increased mammosphere-forming capacity. DCIS.com cells engineered to express SOX11 displayed increased ALDH activity, a feature of cancer stem cells. The CD44+/CD24-/ALDH+ cell population was increased in DCIS...
July 14, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28704777/preinvasive-disease-of-the-airway
#2
REVIEW
Ricky M Thakrar, Adam Pennycuick, Elaine Borg, Sam M Janes
Squamous cell carcinoma of the lung arises from preinvasive progenitors in the central airways. The archetypal model appears to be a stepwise morphological progression until there is invasion of the basement membrane. However, not every lesion appears to follow this course and many individuals can have stable disease, or indeed regress to normal epithelium. From our increased understanding of the molecular pathology it is becoming apparent that the respiratory epithelium accumulates progressive genetic and epigenetic insults in response to carcinogens...
July 2017: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/28692889/dynamic-real-time-in-vivo-confocal-laser-endomicroscopy-of-the-fallopian-tube-during-laparoscopy-in-the-prevention-of-ovarian-cancer
#3
Gautier Chene, Lauriane Chauvy, Annie Buenerd, Stéphanie Moret, Béatrice Nadaud, Philippe Chabert, Gery Lamblin
OBJECTIVES: Recently it has been postulated that most ovarian cancers have a tubal origin. The identification of preinvasive tubal lesions would be of great interest in the early diagnosis of ovarian cancer. Optical biopsy has been developed and validated in the detection of precancerous lesions (such as Barrett's oesophagus). The first objective of this study was to assess the feasibility of optical biopsy in the study of fallopian tubes during laparoscopy. The second objective was to describe the images in benign premalignant and malignant tubes with a histopathological and immunohistochemical (p53 and Ki67 expressions) correlation...
July 5, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28641308/detection-of-phosphatidylserine-positive-exosomes-for-the-diagnosis-of-early-stage-malignancies
#4
Raghava Sharma, Xianming Huang, Rolf A Brekken, Alan J Schroit
BACKGROUND: There has been increasing interest in the detection of tumour exosomes in blood for cancer diagnostics. Most studies have focussed on miRNA and protein signatures that are surrogate markers for specific tumour types. Because tumour cells and tumour-derived exosomes display phosphatidylserine (PS) in their outer membrane leaflet, we developed a highly sensitive ELISA-based system that detects picogram amounts of exosomal phospholipid in plasma as a cancer biomarker. METHODS: This report describes the development of a highly specific and sensitive ELISA for the capture of PS-expressing tumour exosomes in the blood of tumour-bearing mice...
June 22, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28625634/imaging-features-of-tsct-predict-the-classification-of-pulmonary-preinvasive-lesion-minimally-and-invasive-adenocarcinoma-presented-as-ground-glass-nodules
#5
Yinan Liu, Hui Sun, Fei Zhou, Chunxia Su, Guanghui Gao, Shengxiang Ren, Caicun Zhou, Zhemin Zhang, Jingyun Shi
OBJECTIVES: To comprehensively investigate the role of thin section computed tomography(TSCT) features to distinguish invasive adenocarcinoma(IA) from preinvasive or minimally invasive adenocarcinoma(MIA) appearing as pure or mixed ground glass nodules (pGGNs, mGGNs), and to distinguish adenocarcinoma in situ (AIS) from atypical adenomatous hyperplasia (AAH) in pGGNs. MATERIALS AND METHODS: Three hundred thirteen patients with 334 pathologically diagnosed GGNs according to the 2011 IASLC/ATS/ERS classification were included into this study...
June 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/28589014/unethical-randomised-controlled-trial-of-cervical-screening-in-india-us-freedom-of-information-act-disclosures
#6
Eric J Suba, Robert E Ortega, David G Mutch
A randomised controlled trial conducted in Mumbai, India, compared invasive cervical cancer rates among women offered cervical screening with invasive cervical cancer rates among women offered no-screening. The US Office for Human Research Protections determined the Mumbai trial was unethical because informed consent was not obtained from trial participants. Reportedly, cervical screening in the Mumbai trial reduced invasive cervical cancer mortality rates, but not invasive cervical cancer incidence rates. Documents obtained through the US Freedom of Information Act disclose that the US National Cancer Institute funded the Mumbai trial from 1997 to 2015 to study 'visual inspection/downstaging' tests...
March 2017: BMJ Global Health
https://www.readbyqxmd.com/read/28509683/conjunctival-squamous-cell-neoplasia-associated-with-ocular-cicatricial-pemphigoid
#7
Catherine J Choi, Frederick A Jakobiec, Fouad R Zakka, C Stephen Foster, James Chodosh, Suzanne K Freitag
The purpose of this study was to describe a possible causal relationship between ocular cicatricial pemphigoid (OCP) and ocular surface squamous neoplasia. Two middle-aged female patients with already diagnosed OCP were studied in regard to the subsequent onset of conjunctival squamous neoplasia. Their clinical histories, ocular examinations, clinical photographs, and results of biopsies and any ancillary immunofluorescent laboratory evaluation studies were carefully reviewed. One patient had a preinvasive squamous dysplasia and the other an invasive squamous cell carcinoma, both in the unequivocal setting of OCP with bilateral conjunctivitis, symblephara, and forniceal foreshortening...
May 15, 2017: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28502094/programmed-cell-death-ligand-1-pd-l1-overexpression-in-ampulla-of-vater-carcinoma-and-its-pre-invasive-lesions
#8
Deborah Saraggi, Francesca Galuppini, Andrea Remo, Emanuele D L Urso, Deborah Bacchin, Roberta Salmaso, Cristiano Lanza, Riccardo Q Bao, Giuseppe Niccolò Fanelli, Vincenza Guzzardo, Claudio Luchini, Marco Scarpa, Fabio Farinati, Matteo Fassan, Massimo Rugge
AIMS: PD-1/PD-L1 checkpoint immunotherapy has recently been proposed as a promising treatment in relapsed/refractory disease, eventually used in combination with the traditional chemotherapy in different cancer settings. No data are still now available about PD-L1 expression in ampulla of Vater carcinoma and its preinvasive lesions. METHODS AND RESULTS: We assessed the immunohistochemical expression of PD-L1 in a series of 26 ampullary adenocarcinomas, 50 ampullary dysplastic lesions, and 10 normal duodenal mucosa samples...
May 14, 2017: Histopathology
https://www.readbyqxmd.com/read/28475677/acanthotomicus-sp-coleoptera-curculionidae-scolytinae-a-new-destructive-insect-pest-of-north-american-sweetgum-liquidambar-styraciflua-in-china
#9
Lei Gao, You Li, Ying Xu, Jiri Hulcr, Anthony I Cognato, Jian-Guo Wang, Rui-Ting Ju
A previously unknown bark beetle species, Acanthotomicus sp., has emerged as a lethal pest of American sweetgum (Liquidambar styraciflua) in China. Our survey of nursery records from around Shanghai suggests that American sweetgum have been under heavy attack since at least 2013, resulting in the death of > 10,000 trees. Mass attacks of the apparently sweetgum-specific Acanthotomicus sp. can be diagnosed by accumulation of resinous exudates on the trunk, wilted foliage, and eventual numerous exit holes of the new generation...
May 5, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28469121/the-prevalence-and-course-of-preinvasive-cervical-lesions-during-pregnancy-in-a-northern-nigerian-teaching-hospital
#10
Fadimatu Bakari, Muhammad A Abdul, Saad A Ahmed
BACKGROUND: In spite of knowledge of the causes and prevention of cervical cancer, screening programs for cervical cancer have not yet been fully implemented in most developing countries including Nigeria. Documented data on the prevalence of preinvasive cervical lesion in pregnancy are scarce in our environment. OBJECTIVES: To determine the prevalence, risk factors, and course of preinvasive cervical lesion in pregnant women attending an antenatal clinic in Ahmadu Bello University Teaching Hospital (ABUTH) Zaria, Northern Nigeria Study Design: This was a cross-sectional longitudinal study...
April 2017: Annals of African Medicine
https://www.readbyqxmd.com/read/28424832/setting-up-a-community-based-cervical-screening-service-in-a-low-income-country-a-pilot-study-from-north-western-tanzania
#11
Nestory Masalu, Patrizia Serra, Dino Amadori, Jackson Kahima, Charles Majinge, Joyce Rwehabura, Oriana Nanni, Sara Bravaccini, Maurizio Puccetti, Rosario Tumino, Lauro Bucchi
OBJECTIVES: To report the results of a pilot study for a service for cervical cancer screening and diagnosis in north-western Tanzania. METHODS: The pilot study was launched in 2012 after a community-level information campaign. Women aged 15-64 years were encouraged to attend the district health centres. Attendees were offered a conventional Pap smear and a visual inspection of the cervix with acetic acid (VIA). RESULTS: The first 2500 women were evaluated...
April 19, 2017: International Journal of Public Health
https://www.readbyqxmd.com/read/28413146/-multiple-ground-glass-opacities-nodules
#12
D Moreau, V Gazaille, N Allou, C Fernandez, V André, M André
INTRODUCTION: Ground-glass opacities nodules are frequently detected with the advances of radiological imaging. These can be preinvasive lesions such as atypical adenomatous hyperplasia but also invasive lesions. It leads to question in patients with lung cancer about treatment strategy and follow up. CASE REPORT: We report the case of a 72 years-old woman followed for a lung adenocarcinoma with an EGFR mutation of the right upper lobe stage IIb. The CT scan shows multiple pure ground-glass opacities in the same lobe of the primitive tumor but also in the other lobe...
April 13, 2017: Revue de Pneumologie Clinique
https://www.readbyqxmd.com/read/28398952/vulvar-and-anal-intraepithelial-neoplasia-terminology-diagnosis-and-ancillary-studies
#13
REVIEW
Eric J Yang, Christina S Kong, Teri A Longacre
Currently, it is recognized that there is an HPV-related and an HPV-independent pathway to developing squamous cell carcinomas (SCC) in the anus and vulva. The majority of precursor lesions and SCC in the anus and vulva are high-risk HPV-associated, with HPV16 the most common type. Given the morphologic overlap and biological equivalence of HPV-related preinvasive squamous lesions of the lower anogenital tract, a unified, 2-tiered histopathologic nomenclature is now recommended. In contrast, mutations in the TP53 gene have been associated with HPV-independent vulvar and anal SCC...
May 2017: Advances in Anatomic Pathology
https://www.readbyqxmd.com/read/28386719/ct-and-histopathologic-characteristics-of-lung-adenocarcinoma-with-pure-ground-glass-nodules-10-mm-or-less-in-diameter
#14
Fang Wu, Shu-Ping Tian, Xin Jin, Rui Jing, Yue-Qing Yang, Mei Jin, Shao-Hong Zhao
OBJECTIVE: To evaluate CT and histopathologic features of lung adenocarcinoma with pure ground-glass nodule (pGGN) ≤10 mm in diameter. METHODS: CT appearances of 148 patients (150 lesions) who underwent curative resection of lung adenocarcinoma with pGGN ≤10 mm (25 atypical adenomatous hyperplasias, 42 adenocarcinoma in situs, 38 minimally invasive adenocarcinomas, and 45 invasive pulmonary adenocarcinomas) were analyzed for lesion size, density, bubble-like sign, air bronchogram, vessel changes, margin, and tumour-lung interface...
April 6, 2017: European Radiology
https://www.readbyqxmd.com/read/28352662/experimentally-induced-testicular-dysgenesis-syndrome-originates-in-the-masculinization-programming-window
#15
Sander van den Driesche, Karen R Kilcoyne, Ida Wagner, Diane Rebourcet, Ashley Boyle, Rod Mitchell, Chris McKinnell, Sheila Macpherson, Roland Donat, Chitranjan J Shukla, Anne Jorgensen, Ewa Rajpert-De Meyts, Niels E Skakkebaek, Richard M Sharpe
The testicular dysgenesis syndrome (TDS) hypothesis, which proposes that common reproductive disorders of newborn and adult human males may have a common fetal origin, is largely untested. We tested this hypothesis using a rat model involving gestational exposure to dibutyl phthalate (DBP), which suppresses testosterone production by the fetal testis. We evaluated if induction of TDS via testosterone suppression is restricted to the "masculinization programming window" (MPW), as indicated by reduction in anogenital distance (AGD)...
March 23, 2017: JCI Insight
https://www.readbyqxmd.com/read/28333845/changes-in-the-extracellular-matrix-are-associated-with-the-development-of-serous-tubal-intraepithelial-carcinoma-into-high-grade-serous-carcinoma
#16
Sophieke C H A van der Steen, Johan Bulten, Koen K Van de Vijver, Toin H van Kuppevelt, Leon F A G Massuger
OBJECTIVE: The identification of a marker for early progression of preinvasive lesions into invasive pelvic high-grade serous carcinoma (HGSC) may provide novel handles for innovative screening and prevention strategies. The interplay between cancer cells and the extracellular matrix (ECM) is one of the main principles in cancer development and growth, but has been largely neglected in preinvasive lesions. This is the first study addressing the involvement of the ECM in the "step-by-step" transition of normal fallopian tube epithelium into preinvasive lesions, and eventually the progression of preinvasive lesions into invasive HGSC...
March 23, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28331826/pulmonary-ground-glass-opacity-computed-tomography-features-histopathology-and-molecular-pathology
#17
REVIEW
Jian-Wei Gao, Stefania Rizzo, Li-Hong Ma, Xiang-Yu Qiu, Arne Warth, Nobuhiko Seki, Mizue Hasegawa, Jia-Wei Zou, Qian Li, Marco Femia, Tang-Feng Lv, Yong Song
The incidence of pulmonary ground-glass opacity (GGO) lesions is increasing as a result of the widespread use of multislice spiral computed tomography (CT) and the low-dose CT screening for lung cancer detection. Besides benign lesions, GGOs can be a specific type of lung adenocarcinomas or their preinvasive lesions. Evaluation of pulmonary GGO and investigation of the correlation between CT imaging features and lung adenocarcinoma subtypes or driver genes can be helpful in confirming the diagnosis and in guiding the clinical management...
February 2017: Translational Lung Cancer Research
https://www.readbyqxmd.com/read/28325192/endoscopic-management-of-early-gastric-adenocarcinoma-and-preinvasive-gastric-lesions
#18
REVIEW
Saowanee Ngamruengphong, Seiichiro Abe, Ichiro Oda
Early gastric cancer (ECG) can be difficult to diagnose endoscopically. Endoscopists should be familiar with subtle changes and endoscopic features of EGC. Chromoendoscopy and image-enhanced endoscopy improve diagnostic accuracy and facilitate endoscopic resection. Endoscopic submucosal dissection is a preferred endoscopic technique for resection of EGC and offers a comparable overall survival to surgical resection. Endoscopic management of benign gastric epithelial polyps (fundic gland polyps, hyperplastic polyps, and gastric adenoma) depends on patient symptomatology, patient's comorbidities (eg, familial syndromes), lesions' characteristics, and risk of malignant transformation...
April 2017: Surgical Clinics of North America
https://www.readbyqxmd.com/read/28169235/prediction-of-heterogeneity-in-breast-cancer-immunophenotype-at-ductal-carcinoma-in-situ-stage
#19
Manish Rohilla, Amanjit Bal, Gurpreet Singh, Kusum Joshi
INTRODUCTION: Ductal carcinoma in situ (DCIS) is considered a heterogeneous lesion at the molecular level. However, there is a paucity of literature about the existence of molecular subtypes in DCIS which can predict their biological behavior at the preinvasive stage. MATERIALS AND METHODS: Precise prevalence of molecular subtypes of pure DCIS and DCIS component of infiltrating duct carcinoma (IDC) was evaluated using immunohistochemistry and correlated with known prognostic factors...
October 2016: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28143875/epithelial-cell-migration-as-a-potential-therapeutic-target-in-early-lung-cancer
#20
REVIEW
Fraser R Millar, Sam M Janes, Adam Giangreco
Lung cancer is the most lethal cancer type worldwide, with the majority of patients presenting with advanced stage disease. Targeting early stage disease pathogenesis would allow dramatic improvements in lung cancer patient survival. Recently, cell migration has been shown to be an integral process in early lung cancer ontogeny, with preinvasive lung cancer cells shown to migrate across normal epithelium prior to developing into invasive disease. TP53 mutations are the most abundant mutations in human nonsmall cell lung cancers and have been shown to increase cell migration via regulation of Rho-GTPase protein activity...
January 2017: European Respiratory Review: An Official Journal of the European Respiratory Society
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