keyword
MENU ▼
Read by QxMD icon Read
search

Tamoxifen

keyword
https://www.readbyqxmd.com/read/29678836/tumor-suppressor-bap1-is-essential-for-thymic-development-and-proliferative-responses-of-t-lymphocytes
#1
Teresita L Arenzana, Steve Lianoglou, Akiko Seki, Celine Eidenschenk, Tommy Cheung, Dhaya Seshasayee, Thijs Hagenbeek, Arivazhagan Sambandam, Rajkumar Noubade, Ivan Peng, Justin Lesch, Jason DeVoss, Xiumin Wu, Wyne P Lee, Patrick Caplazi, Joshua Webster, Jinfeng Liu, Victoria C Pham, David Arnott, Jennie R Lill, Zora Modrusan, Anwesha Dey, Sascha Rutz
Loss of function of the nuclear deubiquitinating enzyme BRCA1-associated protein-1 (BAP1) is associated with a wide spectrum of cancers. We report that tamoxifen-induced BAP1 deletion in adult mice resulted in severe thymic atrophy. BAP1 was critical for T cell development at several stages. In the thymus, BAP1 was required for progression through the pre-T cell receptor checkpoint. Peripheral T cells lacking BAP1 demonstrated a defect in homeostatic and antigen-driven expansion. Deletion of BAP1 resulted in suppression of E2F target genes and defects in cell cycle progression, which was dependent on the catalytic activity of BAP1, but did not require its interaction with host cell factor-1 (HCF-1)...
April 20, 2018: Science Immunology
https://www.readbyqxmd.com/read/29678492/hmga1a-induces-alternative-splicing-of-estrogen-receptor-alpha-in-mcf-7-human-breast-cancer-cells
#2
Kenji Ohe, Shinsuke Miyajima, Tomoko Tanaka, Yuriko Hamaguchi, Yoshihiro Harada, Yuta Horita, Yuki Beppu, Fumiaki Ito, Takafumi Yamasaki, Hiroki Terai, Masayoshi Mori, Yusuke Murata, Makito Tanabe, Kenji Ashida, Munechika Enjoji, Toshihiko Yanase, Nobuhiro Harada, Toshiaki Utsumi, Akila Mayeda
The high-mobility group A protein 1a (HMGA1a) protein is known as an oncogene whose expression level in cancer tissue correlates with the malignant potential, and known as a component of senescence-related structures connecting it to tumor suppressor networks in fibroblasts. HMGA1 protein binds to DNA, but recent studies have shown it exerts novel functions through RNA-binding. Our previous studies have shown that sequence-specific RNA-binding of HMGA1a induces exon-skipping of Presenilin-2 exon 5 in sporadic Alzheimer disease...
April 17, 2018: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29676944/integration-of-clinical-variables-for-the-prediction-of-late-distant-recurrence-in-patients-with-estrogen-receptor-positive-breast-cancer-treated-with-5-years-of-endocrine-therapy-cts5
#3
Mitch Dowsett, Ivana Sestak, Meredith M Regan, Andrew Dodson, Giuseppe Viale, Beat Thürlimann, Marco Colleoni, Jack Cuzick
Purpose Estimating risk of late distant recurrence (DR) is an important goal for managing women with hormone receptor-positive breast cancer after 5 years of endocrine treatment without recurrence. We developed and validated a simple clinicopathologic tool (Clinical Treatment Score post-5 years [CTS5]) to estimate residual risk of DR after 5 years of endocrine treatment. Patients and Methods The ATAC (Arimidex, Tamoxifen, Alone or in Combination) data set (N = 4,735) was used to create a prognostic score for post-5-year risk of DR...
April 20, 2018: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/29674510/tamoxifen-resistance-trumped-and-oral-selective-estrogen-receptor-degraders-arrive
#4
V Craig Jordan
Predictive tests, to refine the estrogen receptor assay, for the adjuvant treatment of breast cancer with tamoxifen and oral Selective Estrogen Receptor Degraders (SERDs) are required.  A splice variant of the corepressor NCOR2, BQ2313636.1 predicts tamoxifen resistence to adjuvant tamoxifen and AZ9496, the first oral SERD, completes phase one studies.
April 19, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29666334/oestrogen-regulates-the-expression-of-cathepsin-e-a-like-gene-through-er%C3%AE-in-liver-of-chicken-gallus-gallus
#5
Hang Zheng, Hong Li, Wenbo Tan, Chunlin Xu, Lijuan Jia, Dandan Wang, Zhuanjian Li, Gunrong Sun, Xiangtao Kang, Fengbin Yan, Xiaojun Liu
The cathepsin E-A-like, also known as 'similar to nothepsin', is a new member of the aspartic protease family, which may take part in processing of egg yolk macromolecules, due to it was identified in the chicken egg-yolk. Previously, studies have suggested that the expression of cathepsin E-A-like increased gradually during sexual maturation of pullets, but the exact regulation mechanism is poorly understood. In this study, to gain insight into the function and regulation mechanism of the gene in egg-laying hen, we cloned the cathepsin E-A-like gene and evaluated its evolutionary origin by using both phylogenetic and syntenic methods...
March 2018: Journal of Genetics
https://www.readbyqxmd.com/read/29661777/interferon-stimulated-genes-are-involved-in-cross-resistance-to-radiotherapy-in-tamoxifen-resistant-breast-cancer
#6
Annemarie E M Post, Marcel Smid, Anika Nagelkerke, John W M Martens, Johan Bussink, Fred Cjg Sweep, Paul N Span
PURPOSE: Treatment resistance is a main cause of adverse disease outcome in breast cancer patients. Here we aimed to investigate common features in tamoxifen-resistant and radioresistant breast cancer, since tamoxifen-resistant breast cancer cells are cross-resistant to irradiation in vitro. EXPERIMENTAL DESIGN: RNA sequencing of tamoxifen-resistant and radioresistant breast cancer cells was performed and validated by quantitative PCR. Pathways were further investigated in vitro and in breast cancer patient cohorts to establish their relation with treatment resistance...
April 16, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29660599/dosage-dependent-reduction-of-macular-pigment-optical-density-in-female-breast-cancer-patients-receiving-tamoxifen-adjuvant-therapy
#7
I-Liang Lim, Angela Voon Pei Loo, Visvaraja Subrayan, Tsung Fei Khang, Mee Hoong See, Adlinda Alip, Nur Aishah Mohd Taib
It is now increasingly common for breast cancer patients to receive adjuvant tamoxifen therapy for a period of up to 10 years. As survival rate increases, managing tamoxifen ocular toxicities is important for patients' quality of life. Macular pigments in photoreceptor cells protect against free radical damage, which can cause macular degeneration. By reducing macular pigment concentration, tamoxifen may increase the risk of macular degeneration. Here, we compared macular pigment optical density (MPOD) and central macular thickness between breast cancer patients on tamoxifen adjuvant therapy (n = 70), and a control group (n = 72)...
April 13, 2018: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/29651409/incidence-of-comorbidities-in-women-with-breast-cancer-treated-with-tamoxifen-or-an-aromatase-inhibitor-an-australian-population-based-cohort-study
#8
Huah Shin Ng, Bogda Koczwara, David Roder, Theo Niyonsenga, Agnes Vitry
Background: The development of comorbidities has become increasingly relevant with longer-term cancer survival. Objective: To assess the pattern of comorbidities among Australian women with breast cancer treated with tamoxifen or an aromatase inhibitor. Design: Retrospective cohort study using Pharmaceutical Benefits Scheme (PBS) data (10% sample) from January 2003 to December 2014. Dispensing claims data were used to identify comorbidities and classified with the Rx-Risk-V model...
2018: Journal of Comorbidity
https://www.readbyqxmd.com/read/29651133/refined-protocols-of-tamoxifen-injection-for-inducible-dna-recombination-in-mouse-astroglia
#9
Hannah M Jahn, Carmen V Kasakow, Andreas Helfer, Julian Michely, Alexei Verkhratsky, Hans H Maurer, Anja Scheller, Frank Kirchhoff
Inducible DNA recombination of floxed alleles in vivo by liver metabolites of tamoxifen (TAM) is an important tool to study gene functions. Here, we describe protocols for optimal DNA recombination in astrocytes, based on the GLAST-CreERT2 /loxP system. In addition, we demonstrate that quantification of genomic recombination allows to determine the proportion of cell types in various brain regions. We analyzed the presence and clearance of TAM and its metabolites (N-desmethyl-tamoxifen, 4-hydroxytamoxifen and endoxifen) in brain and serum of mice by liquid chromatographic-high resolution-tandem mass spectrometry (LC-HR-MS/MS) and assessed optimal injection protocols by quantitative RT-PCR of several floxed target genes (p2ry1, gria1, gabbr1 and Rosa26-tdTomato locus)...
April 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29650905/-a-case-of-her2-positive-breast-cancer-with-liver-metastases-showing-three-years-of-complete-response-to-combination-therapy-with-trastuzumabplus-pertuzumab
#10
Yuri Fujimoto, Kazushige Yamaguchi, Ayako Ueno, Reo Sakurai, Yoshio Nagahisa, Shiro Imai, Kazuyuki Kawamoto
A 48-year-old woman with severe interstitial pneumonitis was diagnosed with right breast cancer(invasive ductal carcinoma, T1aN1M0, ER+, PgR-, HER2 3+)and underwent modified radical mastectomy.The patient was administered tamoxifen as adjuvant therapy.However, 1 year after the mastectomy, multiple liver metastases were found and the patient received 2 anti-HER2 agents, trastuzumab and pertuzumab.A complete response(CR)was observed with the disappearance of the liver metastases in 7 months.CR was maintained for 2 years after the initiation of treatment, and then, we started trastuzumab monotherapy, which has resulted in long-term disease control...
March 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29650835/-diagnosis-of-a-non-invasive-ductal-carcinoma-assisted-by-long-term-follow-up-of-spontaneous-nipple-discharge-a-case-report
#11
Tomohiro Hirano, Shuhei Suzuki, Keita Adachi, Hitomi Kubota, Yukiko Hara, Katsuhisa Enomoto, Ryouichi Tomita, Shigeru Fujisaki, Kenichi Sakurai
We report a case of a non-invasive ductal carcinoma revealed on long-term follow-up of spontaneous nipple discharge. The patient, a 36-year-old woman, had noticed spontaneous nipple discharge from both breasts over a 3-year period. Mammography and ultrasonography did not reveal any lesions in the breasts. The nipple discharge from her left breast stopped 36 months after initial clinical assessment. However, the nipple discharges from her right breast transformed into a bloody discharge from a single duct. Ultrasonography showed a tumor, 6mm in diameter, in the upper-outer quadrant of her right breast...
April 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29650825/-successful-breast-conserving-surgery-for-simultaneous-and-ipsilateral-multiple-breast-carcinomas-of-young-patient-a-case-report
#12
Hitomi Kubota, Keita Adachi, Shuhei Suzuki, Shigeru Fujisaki, Yukiko Hara, Katsuhisa Enomoto, Ryouichi Tomita, Tomohiro Hirano, Kenichi Sakurai
We report a case of a simultaneous and ipsilateral multiple breast carcinoma.The patient was 35-year-old woman.She was noticed a breast lump on her right breast, and visited our hospital.Mammography showed a tumor accompanied by spiculation on her right breast.Ultrasonography revealed 2 tumors with irregular margins, 23mm in diameter and 12mm in diameter, and were observed on C area of her right breast.The continuity of the 2 tumors was not clear.Core needle biopsies for each breast tumors led to a diagnosis...
April 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29650694/lymphatic-vasculature-requires-er-estrogen-receptor-%C3%AE-signaling-to-protect-from-lymphedema
#13
Florent Morfoisse, Florence Tatin, Benoit Chapût, Nicole Therville, Charlotte Vaysse, Raphael Métivier, Julie Malloizel-Delaunay, Francoise Pujol, Anne-Claire Godet, Fabienne De Toni, Frederic Boudou, Katia Grenier, David Dubuc, Eric Lacazette, Anne-Catherine Prats, Julie Guillermet-Guibert, Francoise Lenfant, Barbara Garmy-Susini
OBJECTIVE: Estrogens exert beneficial effect on the blood vascular system. However, their role on the lymphatic system has been poorly investigated. We studied the protective effect of the 17β estradiol-the most potent endogenous estrogen-in lymphedema-a lymphatic dysfunction, which results in a massive fluid and fat accumulation in the limb. APPROACH AND RESULTS: Screening of DNA motifs able to mobilize ERs (estrogen receptors) and quantitative real-time polymerase chain reaction analysis revealed that estradiol promotes transcriptional activation of lymphangiogenesis-related gene expression including VEGF (vascular endothelial growth factor)-D, VEGFR (VEGF receptor)-3, lyve-1, and HASs (hyaluronan synthases)...
April 12, 2018: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/29644007/impact-of-adjuvant-hormonotherapy-on-radiation-induced-breast-fibrosis-according-to-the-individual-radiosensitivity-results-of-a-multicenter-prospective-french-trial
#14
Céline Bourgier, Florence Castan, Olivier Riou, Tan-Dat Nguyen, Karine Peignaux, Claire Lemanski, Jean-Léon Lagrange, Youlia Kirova, Eric Lartigau, Yazid Belkacemi, Sofia Rivera, Georges Noël, Sébastien Clippe, Françoise Mornex, Christophe Hennequin, Sophie Gourgou, Muriel Brengues, Pascal Fenoglietto, Esat Mahmut Ozsahin, David Azria
Background: To evaluate risk of severe breast fibrosis occurrence in patients treated by breast-conserving surgery, adjuvant radiotherapy and hormonotherapy (HT) according to individual radiosensitivity (RILA assay). Results: HT- and RILAhigh were the two independent factors associated with improved breast-fibrosis free survival (BFFS). BFFS rate at 36 months was lower in patients with RILAlow and HT+ than in patients with RILAhigh and HT- (75.8% and 100%, respectively; p = 0...
March 20, 2018: Oncotarget
https://www.readbyqxmd.com/read/29644002/loss-of-neutrophil-polarization-in-colon-carcinoma-liver-metastases-of-mice-with-an-inducible-liver-specific-igf-i-deficiency
#15
Roni F Rayes, Simon Milette, Maria Celia Fernandez, Boram Ham, Ni Wang, France Bourdeau, Stephanie Perrino, Shoshana Yakar, Pnina Brodt
The growth of cancer metastases in the liver depends on a permissive interaction with the hepatic microenvironment and neutrophils can contribute to this interaction, either positively or negatively, depending on their phenotype. Here we investigated the role of IGF-I in the control of the tumor microenvironment in the liver, using mice with a conditional, liver-specific, IGF-I deficiency (iLID) induced by a single tamoxifen injection. In mice that had a sustained (3 weeks) IGF-I deficiency prior to the intrasplenic/portal inoculation of colon carcinoma MC-38 cells, we observed an increase in neutrophil accumulation in the liver relative to controls...
March 20, 2018: Oncotarget
https://www.readbyqxmd.com/read/29643783/tamoxifen-use-in-a-patient-with-idiopathic-macular-telangiectasia-type-2
#16
Alice Behrens, Ahmed Sallam, John Pemberton, Sami Uwaydat
Crystalline deposits and neurosensory retinal cavitary changes can develop in both tamoxifen retinopathy and nonproliferative idiopathic macular telangiectasia type 2 (MacTel2). MacTel2 is typically differentiated from tamoxifen retinopathy based on the presence of late leakage and mid-phase telangiectatic vessels on fluorescein angiography (FA) and the presence of hyperautofluorescence. Unlike MacTel2, tamoxifen retinopathy is known to be a progressive disease and the cessation of tamoxifen results in resolution of retinopathy...
January 2018: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/29643147/-ex-vivo-gut-culture-for-studying-differentiation-and-migration-of-small-intestinal-epithelial-cells
#17
Xiaofei Sun, Xing Fu, Min Du, Mei-Jun Zhu
Epithelial cultures are commonly used for studying gut health. However, due to the absence of mesenchymal cells and gut structure, epithelial culture systems including recently developed three-dimensional organoid culture cannot accurately represent in vivo gut development, which requires intense cross-regulation of the epithelial layer with the underlying mesenchymal tissue. In addition, organoid culture is costly. To overcome this, a new culture system was developed using mouse embryonic small intestine. Cultured intestine showed spontaneous peristalsis, indicating the maintenance of the normal gut physiological structure...
April 2018: Open Biology
https://www.readbyqxmd.com/read/29643032/-regulatory-role-of-shh-signaling-pathway-in-lung-development-in-fetal-mice
#18
He-Jing Bao, Shu-Dong Ma
OBJECTIVE: To investigate the regulatory role of classical Shh signaling pathway in the development of the epithelium and mesenchyme (bronchial cartilage and smooth muscles) during lung development in fetal mice. METHODS: Immunohistochemical technique was used to detect the expression of Shh signaling pathway receptor Smo and Pdgfr-α in murine fetal lungs to explore the spatial and temporal characteristics of their expression. Based on the interstitial specificity of Pdgfr-α expression, we constructed a Pdgfr-α-cre to establish a E12...
March 20, 2018: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/29629075/a-new-generation-of-ferrociphenols-leads-to-a-great-diversity-of-reactive-metabolites-and-exhibits-remarkable-antiproliferative-properties
#19
Yong Wang, Patrick M Dansette, Pascal Pigeon, Siden Top, Michael J McGlinchey, Daniel Mansuy, Gérard Jaouen
Organometallic compounds bearing the redox motif [ferrocenyl- ene -phenol] have very promising antiproliferative properties which have been further improved by incorporating pertinent substituents able to engender new mechanisms. Here we show that novel ferrociphenols bearing a hydroxypropyl chain exhibit strong antiproliferative effects, in most cases much better than those of cisplatin, tamoxifen, or of previously described ferrociphenols devoid of this terminal OH. This is illustrated, in the case of one of these compounds, by its IC50 values of 110 nM for MDA-MB-231 triple negative breast cancer cells and of 300 nM for cisplatin-resistant A2780cisR human ovarian cancer cells, and by its GI50 values lower than 100 nM towards a series of melanoma and renal cancer cell lines of the NCI-60 panel...
January 7, 2018: Chemical Science
https://www.readbyqxmd.com/read/29627579/genetic-detection-of-sonic-hedgehog-shh-expression-and-cellular-response-in-the-progression-of-acute-through-chronic-demyelination-and-remyelination
#20
Maria A Sanchez, Genevieve M Sullivan, Regina C Armstrong
Multiple sclerosis is a demyelinating disease in which neurological deficits result from damage to myelin, axons, and neuron cell bodies. Prolonged or repeated episodes of demyelination impair remyelination. We hypothesized that augmenting Sonic hedgehog (Shh) signaling in chronically demyelinated lesions could enhance oligodendrogenesis and remyelination. Shh regulates oligodendrocyte development during postnatal myelination, and maintains adult neural stem cells. We used genetic approaches to detect Shh expression and Shh responding cells in vivo...
April 5, 2018: Neurobiology of Disease
keyword
keyword
9780
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"