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https://www.readbyqxmd.com/read/28550025/mineralocorticoid-receptor-null-mice-informing-cell-type-specific-roles
#1
Timothy James Cole, Morag Young
The mineralocorticoid receptor (MR) mediates the actions of two important adrenal corticosteroid hormones, aldosterone and cortisol. The cell signalling roles of the MR in vivo have expanded enormously since the cloning of human MR gene 30 years ago and the first MR gene knockout in mice nearly 20 years ago. Complete ablation of the MR revealed important roles postnatally for regulation of kidney epithelial functions, with MR-null mice dying 1-2 weeks postnatally from renal salt wasting and hyperkalaemia, with elevated plasma renin and aldosterone...
May 26, 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28549597/prolactin-receptor-targeting-in-breast-and-prostate-cancers-new-insights-into-an-old-challenge
#2
REVIEW
Vincent Goffin
In the era of precision medicine, the identification of new targets is a constant challenge to improve cancer therapy. Preclinical investigations, epidemiological studies and analyses of tissue specimens from patients strongly support the contribution of prolactin receptor (PRLR) signaling to breast and prostate tumorigenesis and cancer progression. Although a clear causative link with mutations of the genes encoding prolactin or its receptor is lacking, increased PRLR signaling in these cancers can be assessed by the overexpression of cognate proteins and is often confirmed by over-activation of downstream signaling effectors...
May 23, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28548041/foxr2-promotes-the-proliferation-invasion-and-epithelial-mesenchymal-transition-in-human-colorectal-cancer-cells
#3
Sheng-Qiang Lu, Yan Qiu, Wei-Jie Dai, Xiao-Yu Zhang
Forkhead box R2 (FOXR2), a member of the FOX gene family, has not been very well investigated for its role in cancer. A recent study has shown that FOXR2 is highly expressed in breast cancer samples and is associated with poor prognosis. In addition, FOXR2 was identified as an oncogene in medulloblastoma. Nevertheless, whether FOXR2 plays a role in colorectal cancer (CRC) remains unclear. In the present study, we conducted several in vitro and in vivo studies to investigate the expression and effect of FOXR2 in CRC...
May 24, 2017: Oncology Research
https://www.readbyqxmd.com/read/28547868/improving-three-dimensional-mechanical-imaging-of-breast-lesions-with-principal-component-analysis
#4
Mohit Tyagi, Yuqi Wang, Timothy Hall, Paul E Barbone, Assad A Oberai
PURPOSE: Elastography has emerged as a new tool for detecting and diagnosing many types of diseases including breast cancer. To date, most clinical applications of elastography have utilized two-dimensional strain images. The goal of this paper is to present a new quasi-static elastography technique that yields shear modulus images in three dimensions METHODS: An automated breast volume scanner was used to acquire ultrasound images of the breast as it was gently compressed. Cross-correlation between successive images was used to determine the displacement within the tissue...
May 26, 2017: Medical Physics
https://www.readbyqxmd.com/read/28547387/rainbow-of-kibou-rok-study-a-breast-cancer-survivor-cohort-in-japan
#5
Yuri Mizota, Yasuo Ohashi, Takuji Iwase, Hiroji Iwata, Masataka Sawaki, Takayuki Kinoshita, Naruto Taira, Hirofumi Mukai, Seiichiro Yamamoto
BACKGROUND: Although there are a large number of epidemiological studies investigating the etiological role of lifestyle factors in breast cancer, there are few studies on the association between lifestyle factors and breast cancer prognosis. To investigate the influence of lifestyle factors such as diet and physical activity, use of complementary and alternative medicine, and psychosocial factors on prognosis, we designed a large-scale cohort study of female breast cancer patients in Japan...
May 25, 2017: Breast Cancer: the Journal of the Japanese Breast Cancer Society
https://www.readbyqxmd.com/read/28546720/dermatofibrosarcoma-protruberans-of-the-breast-skin-simulating-mammary-carcinoma
#6
Prakriti Shukla, Hanni Vasudev Gulwani
Dermatofibrosarcoma protuberans is a rare soft tissue sarcoma that arises from the dermis and invades deeper tissues. Usually, it behaves as an intermediate grade malignancy but in rare instances, it can metastasize. Frequent occurrences have been observed in trunk and extremities but involvement of the breast has rarely been reported. Therefore, dermatofibrosarcoma protuberans (DFSP) breast often masquerades primary breast malignancy on clinical and radiological grounds. Histomorphology and immunohistochemistry are helpful in making a definitive diagnosis...
June 2017: Indian Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28545612/drug-repositioning-based-on-triangularly-balanced-structure-for-tissue-specific-diseases-in-incomplete-interactome
#7
Liang Yu, Jin Zhao, Lin Gao
Finding new uses for existing drugs has become a new strategy for decades to treat more patients. Few traditional approaches consider the tissue specificities of diseases. Moreover, disease genes, drug targets and protein interaction (PPI) networks remain largely incomplete and the relationships between drugs and diseases conform to the triangularly balanced structure. Therefore, based on tissue specificities of diseases, we apply the triangularly balanced theory and the module distance defined for incomplete interaction networks to build drug-disease associations...
March 2017: Artificial Intelligence in Medicine
https://www.readbyqxmd.com/read/28545495/the-impact-of-human-adipose-tissue-derived-stem-cells-on-breast-cancer-cells-implications-for-cell-assisted-lipotransfers-in-breast-reconstruction
#8
Eva Koellensperger, Lilly-Claire Bonnert, Inka Zoernig, Frederik Marmé, Stefanie Sandmann, Günter Germann, Felix Gramley, Uwe Leimer
BACKGROUND: In this study we evaluated the interactions of human adipose tissue-derived stem cells (ADSCs) and different human breast cancer cell lines (BRCAs) with regard to the safety of cell-assisted lipotransfers for breast reconstruction and a thereby unintended co-localization of ADSCs and BRCAs. METHODS: ADSCs were co-cultured with five different human BRCAs (MCF-7, MDA-MB-231, SK-BR-3, ZR-75-30, and EVSA-T) and primary BRCAs from one patient in a transwell system, and cell-cell-interactions were analyzed by assessing doubling time, migration and invasion, angiogenesis, quantitative real-time polymerase chain reaction (PCR) of more than 300 tumor-associated genes, and multiplex protein assays of 20 chemokines and growth factors and eight matrix metalloproteinases (MMPs)...
May 25, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28545469/age-related-terminal-duct-lobular-unit-involution-in-benign-tissues-from-chinese-breast-cancer-patients-with-luminal-and-triple-negative-tumors
#9
Changyuan Guo, Hyuna Sung, Shan Zheng, Jennifer Guida, Erni Li, Jing Li, Nan Hu, Joseph Deng, Jonine D Figueroa, Mark E Sherman, Gretchen L Gierach, Ning Lu, Xiaohong R Yang
BACKGROUND: Terminal duct lobular unit (TDLU) involution is a physiological process of breast tissue aging characterized by a reduction in the epithelial component. In studies of women with benign breast disease, researchers have found that age-matched women with lower levels of TDLU involution are at increased risk of developing breast cancer. We previously showed that breast cancer cases with core basal phenotype (CBP; estrogen receptor negative [ER(-)], progesterone receptor-negative [PR(-)], human epidermal growth factor receptor 2-negative [HER2(-)], cytokeratins (CK 5 or CK5/6)-positive [CK5/6(+)] and/or epidermal growth factor receptor-positive [EGFR(+)]) tumors had significantly reduced TDLU involution compared with cases with luminal A (ER(+) and/or PR(+), HER2(-), CK5/6(-), EGFR(-)) tumors from a population-based case-control study in Poland...
May 25, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/28545023/long-non-coding-rna-hoxa-as2-promotes-proliferation-and-invasion-of-breast-cancer-by-acting-as-a-mir-520c-3p-sponge
#10
Yu Fang, Jingxuan Wang, Feng Wu, Ying Song, Shu Zhao, Qingyuan Zhang
The long non-coding RNA (lncRNA) HOXA cluster antisense RNA2 (HOXA-AS2) has recently been shown to be dysregulated and involved in the progression of several cancers. However, the biological role and clinical significance of HOXA-AS2 in the carcinogenesis of breast cancer are still unclear. In the present study, we found that HOXA-AS2 was up-regulated in human breast cancer tissues and cell lines and associated with clinicopathological characteristics. Silencing of HOXA-AS2 inhibited the progression of breast cancer cells in vitro and in vivo...
May 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28545022/a-high-throughput-method-to-detect-rna-profiling-by-integration-of-rt-mlpa-with-next-generation-sequencing-technology
#11
Jing Wang, Xue Yang, Haofeng Chen, Xuewei Wang, Xiangyu Wang, Yi Fang, Zhenyu Jia, Jidong Gao
RNA in formalin-fixed and paraffin-embedded (FFPE) tissues provides large amount of information indicating disease stages, histological tumor types and grades, as well as clinical outcomes. However, Detection of RNA expression levels in formalin-fixed and paraffin-embedded samples is extremely difficult due to poor RNA quality. Here we developed a high-throughput method, Reverse Transcription-Multiple Ligation-dependent Probe Sequencing (RT-MLPSeq), to determine expression levels of multiple transcripts in FFPE samples...
May 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28544923/unfavorable-prognostic-role-of-tumor-infiltrating-lymphocytes-in-hormone-receptor-positive-her2-negative-metastatic-breast-cancer-treated-with-metronomic-chemotherapy
#12
Emilia Montagna, Andrea Vingiani, Patrick Maisonneuve, Giuseppe Cancello, Federica Contaldo, Giancarlo Pruneri, Marco Colleoni
BACKGROUND: High levels of tumor-infiltrating lymphocytes (TILs) in primary triple negative and HER2-positive breast cancer (BC) have been associated with an improved patients' outcome. The role of TILs in Luminal (hormone receptor positive and HER2 negative) tumors remains to be elucidated. Moreover, the association between TILs and prognosis in the metastatic setting is still unknown. PATIENTS AND METHODS: We evaluated the relationship between TILs and time to progression (TTP) in metastatic BC patients enrolled in a prospective phase II trial of metronomic chemotherapy, that used cyclophosphamide 50 mg daily, capecitabine 500 mg thrice daily and vinorelbine 40 mg orally three times a week (VEX combination)...
May 22, 2017: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/28544544/insulin-like-growth-factor-1-signaling-is-responsible-for-cathepsin-g-induced-aggregation-of-breast-cancer-mcf-7-cells
#13
Riyo Morimoto-Kamata, Satoru Yui
Cathepsin G (CG), a neutrophil serine protease, induces cell migration and multicellular aggregation of human breast cancer MCF-7 cells in a process that is dependent on E-cadherin and CG enzymatic activity. While these tumor cell aggregates can cause tumor emboli that could represent intravascular growth and extravasation into the surrounding tissues, resulting in metastasis, the molecular mechanism underlying this process remains poorly characterized. In this study, we aimed to identify the signaling pathway that is triggered during CG-mediated stimulation of cell aggregation...
May 24, 2017: Cancer Science
https://www.readbyqxmd.com/read/28544536/the-prediction-models-for-postoperative-overall-survival-and-disease-free-survival-in-patients-with-breast-cancer
#14
Daichi Shigemizu, Takuji Iwase, Masataka Yoshimoto, Yasuyo Suzuki, Fuyuki Miya, Keith A Boroevich, Toyomasa Katagiri, Hitoshi Zembutsu, Tatsuhiko Tsunoda
The goal of this study is to establish a method for predicting overall survival (OS) and disease-free survival (DFS) in breast cancer patients after surgical operation. The gene expression profiles of cancer tissues from the patients, who underwent complete surgical resection of breast cancer and were subsequently monitored for postoperative survival, were analyzed using cDNA microarrays. We detected seven and three probes/genes associated with the postoperative OS and DFS, respectively, from our discovery cohort data...
May 24, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/28544374/long-non-coding-rna-h19-promotes-the-proliferation-and-invasion-of-breast-cancer-through-upregulating-dnmt1-expression-by-sponging-mir-152
#15
Zhen Li, Yan Li, Ya Li, Kewei Ren, Xin Li, Xinwei Han, Jiaxiang Wang
Long non-coding RNA (lncRNA) H19 in tumors played important roles in various biological processes. However, the biological role and molecular mechanism of H19 in breast cancer are unclear. Here, we found that H19 was aberrantly upregulated in human breast tumor tissues and cells. A negative correlation between H19 and miR-152 and positive correlation between H19 and DNMT1 mRNA were observed. Downregulation of H19 and DNMT1 significantly retarded breast cancer cell proliferation and invasion. H19 act as an endogenous sponge by directly binding to miR-152...
May 23, 2017: Journal of Biochemical and Molecular Toxicology
https://www.readbyqxmd.com/read/28543886/human-hairless-protein-roles-in-skin-hair-and-emerging-connections-to-brain-and-other-cancers
#16
Anas Maatough, G Kerr Whitfield, Lemlem Brook, David Hsieh, Patricia Palade, Jui-Cheng Hsieh
The mammalian hairless protein (HR) is a 130 kDa nuclear transcription factor that is essential for proper skin and hair follicle function. Previous studies have focused on the role of HR in skin maintenance and hair cycling. However, hairless gene (HR) is also expressed in brain and other tissues, where its role remains poorly understood. HR has been reported to contain functional domains that potentially serve in DNA binding, histone demethylation, nuclear translocation signal, and protein-protein interactions...
May 23, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28542073/breast-cancer-recurrence-is-not-increased-with-lipofilling-reconstruction-a-case-controlled-study
#17
Claudio Silva-Vergara, Joan Fontdevila, Omar Weshahy, Marta Yuste, Jordi Descarrega, Luis Grande
BACKGROUND: Lipofilling use has become a revolutionary technique for the correction of breast defect including breast cancer sequelae. The potential risk that progenitor cells included in fat graft tissue may contribute to disease progression by stimulation of residuary breast cancer cells in a tumor bed has set alarms regarding its safety. The aim of this study was to identify lipofilling interference over breast recurrence in patients with cancer history. METHODS: We reviewed 205 patients with fat grafting reconstruction after breast cancer surgery performed in our institution between the years 2007 and 2015...
May 25, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28541897/capacitive-micro-machined-ultrasound-transducers-for-interstitial-high-intensity-ultrasound-therapies
#18
W Apoutou N'Djin, Bjoern Gerold, Jeremy Vion, Michael Canney, An Nguyen-Dinh, Alexandre Carpentier, Jean-Yves Chapelon
Capacitive Micro-machined Ultrasound Transducers (CMUTs) exhibit several potential advantages over conventional piezo technologies for use in therapeutic ultrasound devices, including: ease of miniaturization and integration with electronics, broad bandwidth (>several MHz), and compatibility with magnetic resonance imaging (MRI). In this work, the electro-acoustic performance of CMUTs designed for interstitial high intensity contact ultrasound (HICU) applications was evaluated and the feasibility of generating ultrasound-induced heating and thermal destruction of biological tissues was studied...
May 24, 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28541775/cellular-response-to-exponentially-increasing-and-decreasing-dose-rates-implications-for-treatment-planning-in-targeted-radionuclide-therapy
#19
Jay H Solanki, Thomas Tritt, Jordan B Pasternack, Julia J Kim, Calvin N Leung, Jason D Domogauer, Nicholas W Colangelo, Venkat R Narra, Roger W Howell
The treatment of cancer using targeted radionuclide therapy is of interest to nuclear medicine and radiation oncology because of its potential for killing tumor cells while minimizing dose-limiting toxicities to normal tissue. The ionizing radiations emitted by radiopharmaceuticals deliver radiation absorbed doses over protracted periods of time with continuously varying dose rates. As targeted radionuclide therapy becomes a more prominent part of cancer therapy, accurate models for estimating the biologically effective dose (BED) or equieffective dose given in 2 fractions (EQD2α/β) will become essential for treatment planning...
May 25, 2017: Radiation Research
https://www.readbyqxmd.com/read/28541714/a-multivariate-evaluation-of-factors-affecting-the-quality-of-freshly-frozen-tissue-specimens
#20
Tong-Hong Wang, Chin-Chuan Chen, Kung-Hao Liang, Chi-Yuan Chen, Wen-Yu Chuang, Shir-Hwa Ueng, Pao-Hsien Chu, Chung-Guei Huang, Tse-Ching Chen, Chuen Hsueh
Well-prepared and preserved freshly frozen specimens are indispensable materials for clinical studies. To manage specimen quality and to understand the factors potentially affecting specimen quality during preservation processes, we analyzed the quality of RNA and genomic DNA of various tissues collected between 2002 and 2011 in Linkou Chang Gung Memorial Hospital, Taiwan. During this period, a total of 1059 freshly frozen specimens from eight major cancer categories were examined. It was found that preservation duration, organ origin, and tissue type could all influence the quality of RNA samples...
May 25, 2017: Biopreservation and Biobanking
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