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https://www.readbyqxmd.com/read/29028307/metabolomics-of-small-numbers-of-cells-metabolomic-profiling-of-100-1000-and-10000-human-breast-cancer-cells
#1
Xian Luo, Liang Li
In cellular metabolomics, it is desirable to carry out metabolomic profiling using a small number of cells in order to save time and cost. In some applications (e.g., working with circulating tumor cells in blood), only a limited number of cells are available for analysis. In this report, we describe a method based on high-performance chemical isotope labeling (CIL) nanoflow liquid chromatography mass spectrometry (nanoLC-MS) for high-coverage metabolomic analysis of small numbers of cells (i.e., ≤10000 cells)...
October 13, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29028085/nestin-and-cd146-expression-in-metaplastic-breast-cancer-stem-cell-therapy-in-need-lessons-reported-from-a-male-patient
#2
A Tampakis, E C Tampaki, D Trafalis, A Nonni, K Kontzoglou, E Patsouris, M Kontos, G Kouraklis
OBJECTIVE: Metaplastic breast carcinomas represent a rare subtype of breast cancer exhibiting aggressive clinical features. They appear as highly chemoresistant tumors, therefore showing poor outcome and high rates of local recurrence or distant metastasis. CASE REPORT: A 37-year-old greek man was referred to our hospital for evaluation of a locally advanced, ulcerated, fixed, irregular and hard in consistency mass covering his left breast and chest wall. Further work out with CT and biopsy of the tumor revealed a triple negative metaplastic breast cancer classified as cT4cN3cM1...
September 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29027085/two-new-cytotoxic-stilbenoid-dimers-isolated-from-cajanus-cajan
#3
Nenling Zhang, Xiangchun Shen, Xiaofei Jiang, Jiazhong Cai, Xiaoling Shen, Yingjie Hu, Samuel X Qiu
Two new stilbenoid dimers, cajanstilbenoids A (1) and B (2), were isolated from the leaves of Cajanus cajan. Planar structures of these compounds were verified by NMR (1D and 2D) and high-resolution electrospray ionization mass spectroscopy (HR-ESI-MS). Absolute configurations were assigned by comparing experimental and calculated electronic CD values. The cytotoxicity of 1 and 2 against human hepatoma (HepG2), human breast adenocarcinoma (MCF-7), and human lung cancer (A549) cells were evaluated in vitro. Compound 1 showed strong cytotoxicity against all the tested cell lines (IC50 values: 2...
October 12, 2017: Journal of Natural Medicines
https://www.readbyqxmd.com/read/29027063/inflammatory-myofibroblastic-tumors-of-the-breast-with-simultaneous-intracranial-lung-and-pancreas-involvement-ultrasonographic-findings-and-a-review-of-the-literature
#4
Mari Inoue, Tomoyuki Ohta, Hisashi Shioya, Shun Sato, Hiroyuki Takahashi, Norio Nakata, Chiaki Taniguchi, Megumi Hirano, Makiko Nishioka, Hironori Yamakawa
We encountered a case of inflammatory myofibroblastic tumor (IMT) of the breast with simultaneous intracranial, lung, and pancreas involvement. Here, we present the clinical imaging results and report the significance of sonographic findings of breast IMT along with a review of the literature. A 16-year-old girl with a history of subarachnoidal hemorrhage was admitted to our hospital due to tonic-clonic seizure. Computed tomography (CT) and magnetic resonance imaging (MRI) showed multiple intracranial, lung, and pancreas mass lesions and a solitary mass lesion in the right breast...
October 12, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/29026362/inflammatory-myofibroblastic-tumor-of-the-breast-mimicking-malignancy-in-an-elderly-male
#5
Fouzia Siraj, Manveen Kaur, Varsha Dalal, Jain Sonam
BACKGROUND: Inflammatory myofibroblastic tumor (IMT) is a rare, distinctive lesion composed of a proliferation of myofibroblastic spindle cells accompanied by an inflammatory infiltrate. It was first described in the lung, but its occurrence at various extrapulmonary sites has also been reported. The literature mentions only a handful of cases of IMT in the breast and only 1 case in the male breast. We report the second case of IMT in the male breast. CASE REPORT: A 60-year-old male presented with a large, lobulated lump in the left breast that had progressively increased in size during the past year...
2017: Ochsner Journal
https://www.readbyqxmd.com/read/29024674/optic-nerve-head-problem
#6
Rohan Verma, Kevin C Chen, Hema L Ramkumar, Michael H Goldbaum, Carol L Shields
A 68-year-old woman with a recent history of blurring in the left eye had undergone mastectomy for breast cancer twenty years ago. A series of bone metastases started five years after her diagnosis. Examination of the optic nerve head of the left eye revealed an isolated epipapillary mass. Indocyanine green angiography displayed vessels within the mass, and fluorescein angiography demonstrated hyperfluorescence of the mass from vascular leakage plus lobular spots of blocked fluorescence. B-scan ultrasound revealed a hyperechoic elevated nodular mass on the optic disc...
October 9, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/29024198/mucocele-like-lesions-diagnosed-on-breast-core-biopsy-low-risk-of-upgrade-and-subsequent-carcinoma
#7
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/29021486/a-hypoglycemia-inducing-giant-borderline-phyllodes-tumor-secreting-high-molecular-weight-insulin-like-growth-factor-ii-a-case-report-with-immunohistochemistry-and-a-western-blot-analysis
#8
Masahiro Hikichi, Yuka Kiriyama, Takanori Hayashi, Kaori Ushimado, Naomi Kobayashi, Makoto Urano, Makoto Kuroda, Toshiaki Utsumi
A 50-year-old woman with a large right breast mass was emergently hospitalized for generalized weakness and fatigue. A histological examination of tumor biopsy specimens revealed a phyllodes tumor (PT). She suddenly lost consciousness due to severe hypoglycemia. Non-islet cell tumor hypoglycemia (NICTH) due to the PT was suspected. The tumor was emergently resected. A histological examination revealed a borderline PT. The patient recovered from the hypoglycemic episode. High-molecular-weight insulin-like growth factor II was detected in serum that had been collected preoperatively and in the tumor tissue, but not in serum that had been collected postoperatively...
October 11, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29021292/metabolite-profiling-reveals-the-glutathione-biosynthetic-pathway-as-a-therapeutic-target-in-triple-negative-breast-cancer
#9
Alexander Beatty, Lauren S Fink, Tanu Singh, Alexander Strigun, Erik Peter, Christina M Ferrer, Emmanuelle Nicolas, Kathy Q Cai, Timothy P Moran, Mauricio J Reginato, Ulrike Rennefahrt, Jeffrey R Peterson
Cancer cells can exhibit altered dependency on specific metabolic pathways and targeting these dependencies is a promising therapeutic strategy. Triple negative breast cancer (TNBC) is an aggressive and genomically heterogeneous subset of breast cancer that is resistant to existing targeted therapies. To identify metabolic pathway dependencies in TNBC, we first conducted mass spectrometry-based metabolomics of TNBC and control cells. Relative levels of intracellular metabolites distinguished TNBC from non-transformed breast epithelia and revealed two metabolic subtypes within TNBC that correlate with markers of basal-like versus non-basal-like status...
October 11, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/29020129/maternal-pre-pregnancy-bmi-gestational-weight-gain-and-daughter-s-age-at-menarche-the-avon-longitudinal-study-of-parents-and-children
#10
Rebecca B Lawn, Debbie A Lawlor, Abigail Fraser
Earlier puberty and menarcheal age are associated with adverse health outcomes. Reported associations of maternal adiposity with daughters' menarcheal age are inconsistent. We examined associations between maternal pre-pregnancy body mass index (BMI) and gestational weight gain (GWG), and daughters' age at menarche (n = 3,935), pubarche (Tanner stage 2 for pubic hair) and thelarche (Tanner stage 2 for breast development) (n = 2,942) in the Avon Longitudinal Study of Parents and Children, a UK prospective pregnancy cohort (baseline 1991-1992)...
September 11, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/29019325/ambiguity-of-whole-body-pet-ct-scans-in-diagnosis-of-co-existing-tuberculosis-and-malignancy-is-histopathological-confirmation-mandatory
#11
Prekshi Chaudhary, Sweety Gupta, Nitin Leekha, Ravi S Rajendra, Shiv S Mishra, Vandana Arora, Sudarsan De, Sandeep Agarwal
INTRODUCTION: Whole body PET CT is an important investigation tool in malignancy patients and helps in ascertaining the metabolic activity and exact stage of the disease. However, like any other investigation, false positive results do exist and certain diseases other than cancer may show increased uptake. Hence, a careful evaluation of PET CT and clinical correlation in malignancy patients is a must to accomplish the suitable treatment. METHODS: In this retrospective observational study, seven cases of cancer with concomitant tuberculosis were included...
September 2017: Gulf Journal of Oncology
https://www.readbyqxmd.com/read/29018033/expression-and-functional-characterization-of-breast-cancer-associated-cytochrome-p450-4z1-in-saccharomyces-cerevisiae
#12
Matthew G McDonald, Sutapa Ray, Clara J Amorosi, Katherine A Sitko, John P Kowalski, Lorela Paco, Abhinav Nath, Byron M Gallis, Rheem A Totah, Maitreya J Dunham, Douglas M Fowler, Allan E Rettie
CYP4Z1 is an 'orphan' P450 enzyme that has provoked interest because of its hypothesized role in breast cancer through formation of the signaling molecule 20-HETE. We expressed human CYP4Z1 in Saccharomyces cerevisiae and evaluated its catalytic capabilities towards arachidonic and lauric acids (AA and LA). Specific and sensitive mass spectrometry assays enabled discrimination of the regioselectivity of hydroxylation of these two fatty acids. CYP4Z1 generated 7-, 8-, 9-, 10- and 11-hydroxy LA, while the 12-hydroxy metabolite was not detected...
October 10, 2017: Drug Metabolism and Disposition: the Biological Fate of Chemicals
https://www.readbyqxmd.com/read/29017885/simplified-approach-for-in-vitro-production-and-purification-of-cell-derived-cancer-antigen-15-3
#13
Shoaib Haidar, Paresh B Bhanushali, Kunal K Shukla, Deepak Modi, Chander P Puri, Shamkant B Badgujar, Manoj Chugh
Cancer antigen 15-3 (CA15-3) is a key biomarker, currently used for understanding the onset and prognosis of breast cancer. In present investigation CA15-3 has been purified from the culture supernatant of breast cancer T47-D cell line with 76% yield and 3350 fold purification. Isolated CA15-3 was analysed by sodium dodecyl sulphate polyacrylamide gel electrophoresis (SDS-PAGE), immunoblotting (western blotting), chemiluminescence immunoassay (CLIA) and Fourier-transform infrared spectroscopy (FTIR). CA15-3 is a monomeric protein with an apparent molecular mass in between ∼250 to 350kDa...
October 7, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29017754/health-behavior-and-quality-of-life-outcome-in-breast-cancer-survivors-prevalence-rates-and-predictors
#14
Anne Oberguggenberger, Verena Meraner, Monika Sztankay, Anja Hilbert, Michael Hubalek, Bernhard Holzner, Eva Gamper, Georg Kemmler, Teresa Baumgartner, Isabelle Lackinger, Barbara Sperner-Unterweger, Barbara Mangweth-Matzek
PURPOSE: Health behavior (HB) has been identified as contributing to breast cancer (BC) disease outcome. The present study was subjected to gain more in-depth insight into breast cancer survivors' (BCS) HB and its associations with patient quality of life (QOL) outcome. We investigated HB focusing on eating disturbances comparing the latter with a reference population sample (PS). MATERIALS AND METHODS: The research cohort included 303 BCS completing a comprehensive patient-reported-outcome assessment on HB (eating disturbances, exercise, substance use) and QOL...
September 18, 2017: Clinical Breast Cancer
https://www.readbyqxmd.com/read/29017525/is-vegetarian-diet-associated-with-a-lower-risk-of-breast-cancer-in-taiwanese-women
#15
Yao-Jen Chang, Yi-Cheng Hou, Li-Ju Chen, Jing-Hui Wu, Chao-Chuan Wu, Yun-Jau Chang, Kuo-Piao Chung
BACKGROUND: Studies on the relationship between vegetarian diet and breast cancer in Asian populations are limited. This study aimed to investigate the relationship between vegetarian diet, dietary patterns, and breast cancer in Taiwanese women. METHODS: This case-control study compared the dietary patterns of 233 breast cancer patients and 236 age-matched controls. A questionnaire about vegetarian diets and 28 frequently-consumed food items was administered to these 469 patients in the surgical department of Taipei Tzu Chi Hospital...
October 10, 2017: BMC Public Health
https://www.readbyqxmd.com/read/29017520/the-nuclear-receptor-er%C3%AE-engages-ago2-in-regulation-of-gene-transcription-rna-splicing-and-risc-loading
#16
Roberta Tarallo, Giorgio Giurato, Giuseppina Bruno, Maria Ravo, Francesca Rizzo, Annamaria Salvati, Luca Ricciardi, Giovanna Marchese, Angela Cordella, Teresa Rocco, Valerio Gigantino, Biancamaria Pierri, Giovanni Cimmino, Luciano Milanesi, Concetta Ambrosino, Tuula A Nyman, Giovanni Nassa, Alessandro Weisz
BACKGROUND: The RNA-binding protein Argonaute 2 (AGO2) is a key effector of RNA-silencing pathways It exerts a pivotal role in microRNA maturation and activity and can modulate chromatin remodeling, transcriptional gene regulation and RNA splicing. Estrogen receptor beta (ERβ) is endowed with oncosuppressive activities, antagonizing hormone-induced carcinogenesis and inhibiting growth and oncogenic functions in luminal-like breast cancers (BCs), where its expression correlates with a better prognosis of the disease...
October 6, 2017: Genome Biology
https://www.readbyqxmd.com/read/28991260/protein-and-chemotherapy-profiling-of-extracellular-vesicles-harvested-from-therapeutic-induced-senescent-triple-negative-breast-cancer-cells
#17
E L Kavanagh, S Lindsay, M Halasz, L C Gubbins, K Weiner-Gorzel, M H Z Guang, A McGoldrick, E Collins, M Henry, A Blanco-Fernández, P O' Gorman, P Fitzpatrick, M J Higgins, P Dowling, A McCann
Triple negative breast cancer (TNBC) is an aggressive subtype with relatively poor clinical outcomes and limited treatment options. Chemotherapy, while killing cancer cells, can result in the generation of highly chemoresistant therapeutic induced senescent (TIS) cells that potentially form stem cell niches resulting in metastases. Intriguingly, senescent cells release significantly more extracellular vesicles (EVs) than non-senescent cells. Our aim was to profile EVs harvested from TIS TNBC cells compared with control cells to identify a potential mechanism by which TIS TNBC cells maintain survival in the face of chemotherapy...
October 9, 2017: Oncogenesis
https://www.readbyqxmd.com/read/28991212/evaluating-the-effects-of-an-organic-extract-from-the-mediterranean-sponge-geodia-cydonium-on-human-breast-cancer-cell-lines
#18
Susan Costantini, Eliana Guerriero, Roberta Teta, Francesca Capone, Alessia Caso, Angela Sorice, Giovanna Romano, Adrianna Ianora, Nadia Ruocco, Alfredo Budillon, Valeria Costantino, Maria Costantini
Marine sponges are an excellent source of bioactive secondary metabolites for pharmacological applications. In the present study, we evaluated the chemistry, cytotoxicity and metabolomics of an organic extract from the Mediterranean marine sponge Geodia cydonium, collected in coastal waters of the Gulf of Naples. We identified an active fraction able to block proliferation of breast cancer cell lines MCF-7, MDA-MB231, and MDA-MB468 and to induce cellular apoptosis, whereas it was inactive on normal breast cells (MCF-10A)...
October 9, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28991197/differential-proteome-analysis-of-extracellular-vesicles-from-breast-cancer-cell-lines-by-chaperone-affinity-enrichment
#19
Steven G Griffiths, Michelle T Cormier, Aled Clayton, Alan A Doucette
The complexity of human tissue fluid precludes timely identification of cancer biomarkers by immunoassay or mass spectrometry. An increasingly attractive strategy is to primarily enrich extracellular vesicles (EVs) released from cancer cells in an accelerated manner compared to normal cells. The Vn96 peptide was herein employed to recover a subset of EVs released into the media from cellular models of breast cancer. Vn96 has affinity for heat shock proteins (HSPs) decorating the surface of EVs. Reflecting their cells of origin, cancer EVs displayed discrete differences from those of normal phenotype...
October 8, 2017: Proteomes
https://www.readbyqxmd.com/read/28990890/effect-of-reduction-mammoplasty-on-the-pulmonary-function-tests
#20
Erhan Uğurlu, Adem Topkara, Adem Özkan, Ramazan Hakan Özcan, İlknur Can, Göksel Altınışık
Introduction: Bilateral breast reduction surgery is the surgical treatment of bilateral breast hypertrophy. This is one of the most common breast surgery requested by women, and performed by plastic surgeons. The reasons that patients want this surgery are to re-size sagging breasts aesthetically, and to get rid of somatic symptoms such as shoulder, chest, back, and neck pain. We believe that the objective positive effects of breast reduction surgery exist beside aesthetic. In our study, our aim is to elicit positive effects of surgery on lungs, if there are, by making pulmonary function test and carbon monoxide diffusion test before surgery and after 6 months of surgery...
June 2017: Tüberküloz Ve Toraks
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