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https://www.readbyqxmd.com/read/28636192/intestinal-barrier-integrity-and-inflammatory-bowel-disease-stem-cell-based-approaches-to-regenerate-the-barrier
#1
REVIEW
Fredrik E O Holmberg, Jannie Pedersen, Peter Jørgensen, Christoffer Soendergaard, Kim B Jensen, Ole H Nielsen
Disruption of normal barrier function is a fundamental factor in the pathogenesis of inflammatory bowel disease, which includes increased epithelial cell death, modified mucus configuration, altered expression and distribution of tight junction-proteins, along with a decreased expression of antimicrobial peptides. Inflammatory bowel disease is associated with life-long morbidity for affected patients, and both the incidence and prevalence is increasing globally, resulting in substantial economic strain for society...
June 21, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28624801/bromodomain-inhibition-shows-antitumoral-activity-in-mice-and-human-luminal-breast-cancer
#2
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/28624788/systematic-review-and-meta-analysis-of-the-efficacy-of-breast-conservation-therapy-followed-by-radiotherapy-in-four-breast-cancer-subtypes
#3
Xin-Bin Pan, Rou-Jun Chen, Shi-Ting Huang, Yan-Ming Jiang, Xiao-Dong Zhu
The different molecular subtypes of breast cancer are associated with distinct outcomes. We assessed the efficacy of breast conservation therapy (BCT) followed by radiotherapy for patients with different breast cancer subtypes. We searched the MEDLINE, EMBASE, and Cochrane Library databases to identify studies published prior to April 30, 2016 that assessed the efficacy of BCT followed by radiotherapy in breast cancer patients with different molecular subtypes. A meta-analysis of seven studies that included 3,798 luminal A, 770 luminal B, 344 human epidermal growth factor receptor 2 (Her-2), and 767 triple-negative breast cancer (TNBC) patients was performed...
May 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28622693/release-of-her2-repression-of-trefoil-factor-3-tff3-expression-mediates-trastuzumab-resistance-in-her2-er-mammary-carcinoma
#4
Qing-Yun Chong, Ming-Liang You, Vijay Pandey, Arindam Banerjee, Yi-Jun Chen, Han-Ming Poh, Mengyi Zhang, Lan Ma, Tao Zhu, Basappa, Liang Liu, Peter E Lobie
HER2+/ER+ breast cancer, a subset of the luminal B subtype, makes up approximately 10% of all breast cancers. The bidirectional crosstalk between HER2 and estrogen receptor (ER) in HER2+/ER+ breast cancer contributes to resistance towards both anti-estrogens and HER2-targeted therapies. TFF3 promotes breast cancer progression and has been implicated in anti-estrogen resistance in breast cancer. Herein, we investigated the cross-regulation between HER2 and estrogen-responsive TFF3, and the role of TFF3 in mediating trastuzumab resistance in HER2+/ER+ breast cancer...
June 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28618938/laboratory-validation-of-formal-concept-analysis-of-the-methylation-status-of-microarray-detected-genes-in-primary-breast-cancer
#5
Samar K Kassim, Hanan H Shehata, Marwa M Abou-Alhussein, Maha M Sallam, Islam Ibrahim Amin
Breast cancer is the leading cause of cancer-related mortality. DNA methylations play important roles in cancer development and progression. Formal concept analysis was previously utilized for data mining hypermethylated and hypomethylated genes in breast cancer molecular subtypes in illumina methylation-based microarray database, to laboratory validate their outputs; HS3ST2 (heparan sulfate d-glucosaminyl 3-O-sulfonyl transferase-2) and MUC1 (mucin-1) were retrieved. Both play important roles in progression and invasion of breast cancer...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28612435/racial-disparities-in-survival-outcomes-by-breast-tumor-subtype-among-african-american-women-in-memphis-tennessee
#6
Gregory Vidal, Zoran Bursac, Gustavo Miranda-Carboni, Shelley White-Means, Athena Starlard-Davenport
Racial disparities in survival among African American (AA) women in the United States have been well documented. Breast cancer mortality rates among AA women is higher in Memphis, Tennessee as compared to 49 of the largest US cities. In this study, we investigated the extent to which racial/ethnic disparities in survival outcomes among Memphis women are attributed to differences in breast tumor subtype and treatment outcomes. A total of 3527 patients diagnosed with stage I-IV breast cancer between January 2002 and April 2015 at Methodist Health hospitals and West Cancer Center in Memphis, TN were included in the analysis...
June 14, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28610410/prognostic-value-of-clinicopathological-factors-for-indonesian-breast-carcinomas-of-different-molecular-subtypes
#7
Irianiwati Widodo, Ery Kus Dwianingsih, Sumadi Lukman Anwar, Triningsih Fx Ediati, Totok Utoro, Teguh Aryandono, Soeripto
Background: Breast carcinoma (BC) is a heterogeneous disease due to its different molecular profiles i.e. luminal (luminal A and luminal B) and non-luminal (HER2 positive and triple negative) subtypes. Prognostic value of clinicopathological factors of Indonesian BC of different molecular subtypes has never been reported previously. This study aims to elaborate prognostic impacts on Indonesian BCs focusing on separate molecular subtypes. Methods: A hundred and fifty cases of invasive BC, stage I-IIIA, in Sardjito Hospital, Indonesia, were stained using anti ER, PR, HER2 and Ki-67 antibodies...
May 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28601367/breast-cancer-biomarkers-at-niger-delta-university-hospital-comparisons-with-national-and-international-trends-and-clinical-significance
#8
Yibala I Oboma, Benjamin E Susan, Stephen O Elesha, Madukwe Jonathan
Breast cancer biology is heterogeneous and patients with the same diagnostic profile have markedly different clinical outcomes. Gene expression profiling and its surrogate IHC markers classified breast cancer into four molecular subtypes with different prognosis, targeted therapies, and/or clinical outcomes. The present study was conducted to investigate breast cancer subtypes among women in NDUTH Bayelsa state and compared them with similar studies in other populations of international and national origin...
June 3, 2017: Pathophysiology: the Official Journal of the International Society for Pathophysiology
https://www.readbyqxmd.com/read/28599421/age-associated-prognostic-and-predictive-biomarkers-in-patients-with-breast-cancer
#9
Markéta Kolečková, Zdeněk Kolář, Jiří Ehrmann, Gabriela Kořínková, Radek Trojanec
To date, no comprehensive prognostic or predictive marker profiling analysis has been performed in association with the age of patients with breast cancer. In the present study, 632 breast cancer tissue samples were analyzed for expression of estrogen receptor (ER), progesterone receptor (PR), human epidermal growth factor receptor 2 (HER2), B-cell lymphoma (Bcl)-2 protein, HER2 gene amplification, proliferation [as evaluated by proliferating cell nuclear antigen (PCNA) and Ki-67 index], tumor grade, histological type and molecular subtype...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28592291/tightly-controlled-mrtf-a-activity-regulates-epithelial-differentiation-during-formation-of-mammary-acini
#10
Anja Seifert, Guido Posern
BACKGROUND: Myocardin-related transcription factors (MRTF) A and B link actin dynamics and mechanotransduction to gene expression. In mice, MRTF-A is involved in mammary gland differentiation, but its role in human mammary epithelial cells remains unclear. METHODS: Three-dimensional cultures of human mammary epithelial MCF10A cells were used to model acinar morphogenesis. Stable MRTF-A knockdown, MRTF-A/B rescue and MRTF-A/B overexpression was established to characterize the functional role during morphogenesis using confocal microscopy and expression analysis...
June 7, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/28592099/-study-of-the-association-between-polymorphism-of-persistent-obesity-human-leptin-gene-leptin-receptor-gene-and-molecular-subtypes-of-breast-cancer
#11
X L Yuan, Z P Xu, C R Liu, L P Yan, P Tao, P Xiong, Q Li, M Zhou, H Li, M Zhao, J Y Li
Objectives: To explore the association between the polymorphism of persistent obesity and genetic variations in the LEP (human leptin gene, LEP) and LEPR (leptin receptor gene, LEPR) genes and different molecular subtypes of breast cancer. Methods: All 703 female patients of breast cancer diagnosed by histopathology in the Sichuan Cancer Hospital or the West China Hospital, excluding patients with metastatic breast cancer or mental disease, were selected as cases from April 2014 to May 2015. At the same time, 805 healthy women received physical examination in medical examination center of Sichuan People Hospital or Shuangliu maternal and child health care hospital, excluding those with therioma, breast disease, and mental disease, were enrolled in control group...
June 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/28588725/molecular-characterization-of-breast-cancer-cell-lines-by-clinical-immunohistochemical-markers
#12
André de Lima Mota, Adriane Feijo Evangelista, Taciane Macedo, Renato Oliveira, Cristovam Scapulatempo-Neto, René Aloisio Vieira, Marcia Maria Chiquitelli Marques
Breast cancer is the leading cause of cancer mortality in females worldwide. Studies based on gene expression profiles have identified different breast cancer molecular subtypes, such as luminal A and B cells, cancer cells that are estrogen receptor (ER) and/or progesterone receptor (PR) positive, human epidermal growth factor 2 (HER2)-enriched cells, cancer cells that exhibit an overexpression of the oncogene HER2, and triple-negative cells, cancer cells that are negative for ER, PR and HER2 expression. Immunohistochemistry is the most common type of method used for the identification of these molecular subtypes, through the identification of specific cell receptors...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28578066/microbial-metabolites-profile-during-in-vitro-human-colonic-fermentation-of-breakfast-menus-consumed-by-mexican-school-children
#13
Victor Manuel Zamora-Gasga, Efigenia Montalvo-González, Guadalupe Loarca-Piña, Pedro Alberto Vázquez-Landaverde, Juscelino Tovar, Sonia G Sáyago-Ayerdi
The nutrition transition promotes the development of childhood obesity. Currently, Mexico is affected by this serious public health problem. The nutritional and functional characterization of a whole menu has a number of advantages over the study of single nutrients. Since breakfast is considered the most important meal of the day, this study aimed to evaluate the metabolite profile produced by in vitro human colonic fermentation of the isolated indigestible fraction (IF) from three different Mexican breakfast (M-B) menus (Modified "MM-B", traditional "TM-B", and alternative "AM-B"), previously identified as commonly consumed by Mexican schoolchildren in Nayarit State, Mexico...
July 2017: Food Research International
https://www.readbyqxmd.com/read/28576620/sonographic-phenotypes-of-molecular-subtypes-of-invasive-ductal-cancer-in-automated-3-d-breast-ultrasound
#14
Jan C M van Zelst, Maschenka Balkenhol, Tao Tan, Matthieu Rutten, Mechli Imhof-Tas, Peter Bult, Nico Karssemeijer, Ritse M Mann
Our aim was to investigate whether Breast Imaging Reporting and Data System-Ultrasound (BI-RADS-US) lexicon descriptors can be used as imaging biomarkers to differentiate molecular subtypes (MS) of invasive ductal carcinoma (IDC) in automated breast ultrasound (ABUS). We included 125 IDCs diagnosed between 2010 and 2014 and imaged with ABUS at two institutes retrospectively. IDCs were classified as luminal A or B, HER2 enriched or triple negative based on reports of histopathologic analysis of surgical specimens...
May 30, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28559342/follistatin-is-critical-for-mouse-uterine-receptivity-and-decidualization
#15
Paul T Fullerton, Diana Monsivais, Ramakrishna Kommagani, Martin M Matzuk
Embryo implantation remains a significant challenge for assisted reproductive technology, with implantation failure occurring in ∼50% of in vitro fertilization attempts. Understanding the molecular mechanisms underlying uterine receptivity will enable the development of new interventions and biomarkers. TGFβ family signaling in the uterus is critical for establishing and maintaining pregnancy. Follistatin (FST) regulates TGFβ family signaling by selectively binding TGFβ family ligands and sequestering them...
May 30, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28558391/breaking-object-correspondence-across-saccades-impairs-object-recognition-the-role-of-color-and-luminance
#16
Christian H Poth, Werner X Schneider
Rapid saccadic eye movements bring the foveal region of the eye's retina onto objects for high-acuity vision. Saccades change the location and resolution of objects' retinal images. To perceive objects as visually stable across saccades, correspondence between the objects before and after the saccade must be established. We have previously shown that breaking object correspondence across the saccade causes a decrement in object recognition (Poth, Herwig, & Schneider, 2015). Color and luminance can establish object correspondence, but it is unknown how these surface features contribute to transsaccadic visual processing...
September 1, 2016: Journal of Vision
https://www.readbyqxmd.com/read/28550675/-prognostic-value-of-sequencing-of-radiotherapy-and-chemotherapy-following-breast-conserving-surgery-for-patients-with-breast-cancer
#17
Q Z Zhong, Z Wang, Y Tang, Q L Rong, S L Wang, J Jin, W H Wang, Y P Liu, Y W Song, H Fang, B Chen, S N Qi, N Li, Y Tang, J H Zhang, Y X Li
Objective: To evaluate the prognostic value of sequencing of adjuvant radiotherapy and chemotherapy following breast-conserving surgery for patients with breast cancer. Methods: A total of 1 154 patients withT1-2N0-3M0 breast cancer retrospectively reviewed. All patients received sequential radiotherapy and chemotherapy following breast-conserving surgery. Among them, 603 patients received radiotherapy first and 551 patients received chemotherapy first. Log-rank tests were used to determine significance of disease-free survival (DFS) and overall survival (OS) rates in the Kaplan-Meier curve...
April 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28543794/loss-of-arid1a-expression-is-associated-with-poor-prognosis-in-invasive-micropapillary-carcinomas-of-the-breast-a-clinicopathologic-and-immunohistochemical-study-with-long-term-survival-analysis
#18
Semen Onder, Merdan Fayda, Hasan Karanlık, Aysel Bayram, Fatma Şen, Neslihan Cabioglu, Sıtkı Tuzlalı, Rıdvan İlhan, Ekrem Yavuz
Invasive micropapillary carcinoma (IMPC) of the breast is a highly aggressive and a rare subtype of breast cancer. In this study, we aimed to investigate differences between pure and mixed IMPCs of the breast in terms of clinicopathologic features, and also to analyze the significance of expressions of ARID1A and bcl-2 regarding prognosis. Sixty-nine of IMPCs consisting of 21 pure and 48 mixed type diagnosed at Pathology Department of Istanbul Medical Faculty between 2000 and 2011, who had complete follow-up data, were collected to analyze ARID1A and bcl-2 expressions immunohistochemically with prognosis...
May 23, 2017: Breast Journal
https://www.readbyqxmd.com/read/28542473/stably-engineered-nanobubbles-and-ultrasound-an-effective-platform-for-enhanced-macromolecular-delivery-to-representative-cells-of-the-retina
#19
Sachin S Thakur, Micheal S Ward, Amirali Popat, Nicole B Flemming, Marie-Odile Parat, Nigel L Barnett, Harendra S Parekh
Herein we showcase the potential of ultrasound-responsive nanobubbles in enhancing macromolecular permeation through layers of the retina, ultimately leading to significant and direct intracellular delivery; this being effectively demonstrated across three relevant and distinct retinal cell lines. Stably engineered nanobubbles of a highly homogenous and echogenic nature were fully characterised using dynamic light scattering, B-scan ultrasound and transmission electron microscopy (TEM). The nanobubbles appeared as spherical liposome-like structures under TEM, accompanied by an opaque luminal core and darkened corona around their periphery, with both features indicative of efficient gas entrapment and adsorption, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28540322/targeting-wnt-%C3%AE-catenin-activated-cells-with-dominant-negative-n-cadherin-to-reduce-neointima-formation
#20
Sarah Hulin-Curtis, Helen Williams, Kerry S Wadey, Graciela B Sala-Newby, Sarah J George
Approximately 50% of coronary artery bypass grafts using the autologous saphenous vein fail within 10 years due to intimal thickening. This study examined whether a gene therapy approach that selectively kills Wnt/β-catenin/T cell factor (TCF) activated vascular smooth muscle cells (VSMCs) using dominant-negative N-cadherin (dn-N-cadherin) reduced intimal thickening. Cultured human VSMCs infected with an adenovirus (Ad) encoding dn-N-cadherin via the TCF promoter (Ad-TOP-dn-N-cadherin) specifically expressed dn-N-cadherin in response to activation of the Wnt/β-catenin/TCF pathway...
June 16, 2017: Molecular Therapy. Methods & Clinical Development
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