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https://www.readbyqxmd.com/read/29790359/-hereditary-breast-cancer-genetic-etiology-and-current-possibilities-of-prevention-and-surgical-treatment
#1
Alena Puchmajerová, Jannis Tornikidis, Lubor Mrňa, Markéta Havlovicová, Markéta Vlčková, Jana Chrudimská, Milan Macek, Jiří Hoch
Cancer is the second most common cause of death in our population just after cardiovascular diseases, since each third individual will become affected by it during their lifetime. Breast cancer is the most common malignancy in women. The lifetime cumulative risk of breast cancer in women under the age of 75 is around 8 % according to Czech statistics. In 70-75 % of all individuals sporadic breast carcinomas are found, with 5-10 % of all women suffer from the hereditary breast and ovarian cancer (HBOC) syndrome...
2018: Casopís Lékar̆ů C̆eských
https://www.readbyqxmd.com/read/29785284/vinorelbine-induced-regression-of-a-choroidal-metastasis-from-primary-breast-carcinoma
#2
Malvika Arya, Jay S Duker
Background: Various therapeutic options exist to treat choroidal metastatic lesions. However, they are all associated with potential long-term adverse effects. This case report discusses a case of choroidal metastasis from primary breast carcinoma that regressed after single-agent chemotherapy. Case presentation: We report a case of choroidal metastasis from estrogen receptor (ER) positive breast carcinoma that became resistant to endocrine therapy. The primary malignancy was treated with surgical resection and adjuvant chemoradiation, followed by hormone therapy with various agents in combination with kinase inhibitors for ER resistance...
2018: International Journal of Retina and Vitreous
https://www.readbyqxmd.com/read/29785156/correlations-of-aldehyde-dehydrogenase-1-aldh1-expression-with-traditional-prognostic-parameters-and-different-molecular-subtypes-of-breast-carcinoma
#3
Piyabi Sarkar, Keya Basu, Pubali Sarkar, Uttara Chatterjee, Madhumita Mukhopadhyay, Manoj Kumar Choudhuri, Diptendra Kumar Srakar
Background and aim: Breast cancer, a heterogeneous disease, is the most common cause of cancer-related death in women worldwide. Despite considerable developments in treatment modalities, a subset of patients with advanced-stage breast carcinoma display poor prognosis. Breast cancer heterogeneity and risk of recurrence could be explained with the help of cancer stem cell hypothesis. Stem cells have the capacity to self-renew and differentiate into multiple cell types. Aldehyde dehydrogenase-1 (ALDH1), an enzyme responsible for the oxidation of intracellular aldehydes, contributes to normal and tumor stem cell differentiation...
2018: Clujul Medical (1957)
https://www.readbyqxmd.com/read/29781860/utility-of-immunohistochemistry-in-distinguishing-primary-adnexal-carcinoma-from-metastatic-breast-carcinoma-to-skin-and-squamous-cell-carcinoma
#4
Aida Valencia-Guerrero, Karen Dresser, Kristine M Cornejo
The distinction between primary adnexal carcinoma (PAC) from metastatic breast carcinoma (BrCa) to skin and squamous cell carcinoma (SCC), particularly those with ductal differentiation (SCCDD), can be quite challenging, despite adequate history. The aim of the study was to determine the utility of an immunohistochemistry (IHC) panel to differentiate these entities and apply them to ambiguous tumors. Twenty-seven PAC, 7 metastatic BrCa, 28 SCC, and 16 ambiguous cases (SCCDD vs. PAC, n = 13 and metastatic BrCa vs...
June 2018: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/29776638/breast-carcinoma-updates-in-molecular-profiling-2018
#5
REVIEW
Sudeshna Bandyopadhyay, Martin H Bluth, Rouba Ali-Fehmi
The most significant contribution of molecular subtyping of breast carcinomas has been the identification of estrogen-positive and estrogen-negative tumor subtypes. Knowledge of genetic alterations in these tumors will help clinicians identify novel therapeutic targets. Understanding the progression pathways involved in the transition of in situ carcinoma to invasive carcinoma might lead to efficient risk stratification in these patients. The Cancer Genome Analysis Network has collected genomic and epigenomic data to provide comprehensive information regarding carcinogenesis and pathway interactions...
June 2018: Clinics in Laboratory Medicine
https://www.readbyqxmd.com/read/29774524/%C3%AE-e-catenin-is-a-candidate-tumor-suppressor-for-the-development-of-e-cadherin-expressing-lobular-type-breast-cancer
#6
Jolien S de Groot, Max A K Rätze, Miranda van Amersfoort, Tanja Eisemann, Eva J Vlug, Mijanou T Niklaas, Suet-Feung Chin, Carlos Caldas, Paul J van Diest, Jos Jonkers, Johan de Rooij, Patrick W B Derksen
Mutational inactivation of E-cadherin (CDH1) is the main driver of invasive lobular breast cancer (ILC), although approximately 10-15% of all ILCs retain membrane-localized E-cadherin, despite the presence of an apparent non-cohesive and invasive lobular growth pattern. Given that ILC is dependent on constitutive actomyosin contraction for tumor development and progression, we used a combination of cell systems and in vivo experiments to investigate the consequences of α-catenin (CTNNA1) loss in the regulation of anchorage independence of non-invasive breast carcinoma...
May 17, 2018: Journal of Pathology
https://www.readbyqxmd.com/read/29771007/dichlorophenylacrylonitriles-as-ahr-ligands-displaying-selective-breast-cancer-cytotoxicity-in-vitro
#7
Jennifer R Baker, Jayne Gilbert, Stefan Paula, Xiao Zhu, Jennette A Sakoff, Adam McCluskey
Knoevenagel condensation of 3,4-dichloro- and 2,6-dichloro- phenylacetonitriles gave a library of dichlorophenylacrylonitriles. Our leads 5 and 6 displayed 0.56±0.03 and 0.127±0.04 μM growth inhibition (GI₅₀) and 260-fold selectivity for the MCF-7 breast cancer cell line. A 2,6-dichlorophenyl moiety saw a 10-fold potency loss; additional nitrogen moieties (-NO₂) enhanced activity (26 and 27), with the corresponding -NH₂ analogues (29 and 30) more potent. Despite this, both 29 (2.8±0.03 μM) and 30 (2...
May 17, 2018: ChemMedChem
https://www.readbyqxmd.com/read/29770955/laptm4b-gene-copy-number-gain-is-associated-with-inferior-response-to-anthracycline-based-chemotherapy-in-hormone-receptor-negative-breast-carcinomas
#8
Orsolya Rusz, Orsolya Papp, Laura Vízkeleti, Béla Ákos Molnár, Kristóf Csaba Bende, Gábor Lotz, Balázs Ács, Zsuzsanna Kahán, Tamás Székely, Ágnes Báthori, Csilla Szundi, Janina Kulka, Zoltán Szállási, Anna-Mária Tőkés
PURPOSE: To determine the associations between lysosomal-associated transmembrane protein 4b (LAPTM4B) gene copy number and response to different chemotherapy regimens in hormone receptor negative (HR-) primary breast carcinomas. PATIENTS AND METHODS: Two cohorts were analyzed: (1) 69 core biopsies from HR-breast carcinomas treated with neoadjuvant chemotherapy (anthracycline based in 72.5% of patients and non-anthracycline based in 27.5% of patients). (2) Tissue microarray (TMA) of 74 HR-breast carcinomas treated with adjuvant therapy (77...
May 16, 2018: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/29770317/metachronous-bilateral-ectopic-breast-carcinoma-a-case-report
#9
Anna Fachinetti, Corrado Chiappa, Veronica Arlant, Matteo Lavazza, Xiaoli Liu, Gianlorenzo Dionigi, Francesca Pia Pergolizzi, Antonina Catalfamo, Francesca Rovera
An incomplete regression of the mammary line during embryogenesis occurs in 0.2-6% of the population, which may result in the presence of ectopic breast tissue (EBT). The development of a carcinoma in the EBT is a rare event. The authors present a case report of a 76-year-old female patient, with a lobular carcinoma in an abdominal wall EBT submitted to surgery and adjuvant chemotherapy.
April 2018: Gland Surgery
https://www.readbyqxmd.com/read/29770313/management-of-the-axilla-in-metaplastic-breast-carcinoma
#10
Brittany L Murphy, Robert T Fazzio, Tanya L Hoskin, Katrina N Glazebrook, Michael G Keeney, Elizabeth B Habermann, Tina J Hieken
Background: Metaplastic breast cancer (MBC), characterized by admixed epithelial, squamous or mesenchymal elements, constitutes <1% of breast cancers and has a poor prognosis but a paradoxically low reported rate of axillary lymph node (LN) involvement. Due to its rarity, data on appropriate axillary management is lacking, prompting this investigation of LN status and outcomes. Methods: We identified 41 MBC patients treated at our institution 2001-2011 who were followed for a median of 66 months...
April 2018: Gland Surgery
https://www.readbyqxmd.com/read/29768356/late-distant-recurrence-of-breast-carcinoma-and-metastasis-to-the-main-bronchus-and-choroid-a-case-report
#11
Zhijie Luo, Qin Cai, Yuanyuan Zhao, Xiaochuan Wang, Siying Fu, Linzhu Zhai
RATIONALE: Metastases of breast carcinoma to the main bronchus and choroid are rare, but have been reported in relevant literature. Late distant recurrence of breast carcinoma after more than 20 years is extremely rare. Herein, we report a 57-year-old woman with late distant recurrence and metastasis to the main bronchus and choroid almost 28 years after surgery. PATIENT CONCERNS: At the age of 29, the patient underwent chemotherapy and endocrine treatment after a right side mastectomy to remove breast carcinoma...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29765947/leser-tr%C3%A3-lat-syndrome-in-a-male-with-breast-carcinoma-and-eyelid-basal-cell-carcinoma
#12
Rajiv Garg, Siddharth Madan, Pragya Prakash, Ram Chander, Monisha Choudhary
Purpose: Leser-Trélat syndrome consists of appearance of a solid tumor-like carcinoma breast, colon, or stomach following eruption of multiple seborrheic keratoses (SK) of the skin. We present an unusual and possibly the first case report of Leser-Trélat syndrome in a male patient with a history of mastectomy for breast carcinoma who presented to us with a second malignancy in the form of basal cell carcinoma (BCC) of the lower eyelid. Procedure: A 75-year-old male presented in 2014 with a history of modified radical mastectomy for infiltrating ductal carcinoma of the left breast which was performed 11 years prior to the day of presentation...
April 2018: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/29765626/a-focused-library-synthesis-and-cytotoxicity-of-quinones-derived-from-the-natural-product-bolinaquinone
#13
Azadeh Ghods, Jayne Gilbert, Jennifer R Baker, Cecilia C Russell, Jennette A Sakoff, Adam McCluskey
Bolinaquinone is a natural product that is a structurally complex, cytotoxic sesquiterpene quinone. A scaffold simplification and focused library approach using a microwave-assisted Suzuki coupling gave 32 bolinaquinone analogues with good-to-excellent cytotoxicity profiles. Mono-arylbenzoquinones, Library A , were preferentially toxic towards BE2-C (neuroblastoma) cells with growth inhibition (GI50 ) values of 4-12 µM; only the 3,4-dimethoxyphenyl 23 and 3-biphenyl 28 variants were broad-spectrum active-HT29 (colon carcinoma), U87 and SJ-G2 (glioblastoma), MCF-7 (breast carcinoma), A2780 (ovarian carcinoma), H460 (lung carcinoma), A431 (skin carcinoma), Du145 (prostate carcinoma), BE2-C (neuroblastoma), MIA (pancreatic carcinoma) and SMA (spontaneous murine astrocytoma)...
April 2018: Royal Society Open Science
https://www.readbyqxmd.com/read/29765252/triple-negative-and-her2-overexpressing-breast-cancer-cell-sialylation-impacts-tumor-microenvironment-t-lymphocyte-subset-recruitment-a-possible-mechanism-of-tumor-escape
#14
Christian Garbar, Corinne Mascaux, Yacine Merrouche, Armand Bensussan
Introduction: Breast cancers develop different patterns of sialylation to modulate their tumor-infiltrating lymphocyte (TIL) environment. We studied the relationship between α-2,6 sialyltransferases and the TIL in different breast cancer molecular subgroups. Materials and methods: Immunohistochemical preparations were made from 39 luminal (LUM), 13 human epidermal growth factor receptor 2-overexpressing (HER2) and 47 triple-negative (TN) breast carcinomas. Targeted proteins included ST6Gal-I, ST6Gal-II, ST6GalNac-I, CD8, CD4 and granzyme-B in both cytotoxic T lymphocytes and NK lymphocytes (CTL/NK)...
2018: Cancer Management and Research
https://www.readbyqxmd.com/read/29764822/numb-chin-syndrome-an-ominous-sign-of-mandibular-metastasis
#15
Abdul Razak, Bee See Goh, Jothi Raamahlingam Rajaran, Abd Jabar Nazimi
A 51-year-old woman a known case of stage 2 breast carcinoma in 2006 and underwent left mastectomy performed in the same year presented with bilateral lower limb pain suggestive of spinal pathology, and left chin numbness, both of 2 weeks' duration. Examination revealed left mandibular hypoesthesia without any other sign or symptoms. Orthopantomogram was unremarkable apart from mild alveolar bone expansion at tooth 36 area, which was extracted 3 months earlier. Subsequently, a full-body positron emission tomography contrast enhanced computer tomography revealed hypermetabolic lesions of her axial (excluding skull) and appendicular skeleton...
May 14, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29763890/mir-301a-3p-suppresses-estrogen-signaling-by-directly-inhibiting-esr1-in-er%C3%AE-positive-breast-cancer
#16
Sandra Lettlova, Veronika Brynychova, Jan Blecha, David Vrana, Magdalena Vondrusova, Pavel Soucek, Jaroslav Truksa
BACKGROUND/AIMS: MiRNA-301a-3p is an oncogenic miRNA whose expression is associated with tumor development, metastases and overall poor prognosis. Estrogen receptor α (ERα) is one of the estrogen hormone-activated transcription factors, which regulates a large number of genes and is involved in the mammary gland development. Expression of ERα is considered to be a good indicator for endocrine therapy and breast cancer survival. Loss of ERα in breast cancer patients indicates invasiveness and poor prognosis...
2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29759595/her2-positive-lobular-versus-ductal-carcinoma-of-the-breast-pattern-of-first-recurrence-and-molecular-insights
#17
Lucia Da Ros, Anna Moretti, Patrizia Querzoli, Massimo Pedriali, Laura Lupini, Cristian Bassi, Paolo Carcoforo, Massimo Negrini, Antonio Frassoldati
BACKGROUND: Infiltrating lobular carcinoma (ILC) represents about 10% of breast cancer and rarely shows overexpression of human epidermal growth factor receptor 2 (HER2). We compared biological and clinical characteristics of HER2-positive ILC versus HER2-positive infiltrating ductal carcinoma (IDC). PATIENTS AND METHODS: We retrospectively analyzed the data of 328 patients with HER2-positive pure ductal or lobular breast carcinoma, comparing clinical and biological data at diagnosis as well as outcome between the 2 histologies...
April 18, 2018: Clinical Breast Cancer
https://www.readbyqxmd.com/read/29755557/evaluation-of-silibinin-effects-on-the-viability-of-hepg2-human-hepatocellular-liver-carcinoma-and-huvec-human-umbilical-vein-endothelial-cell-lines
#18
Niki Vakili Zahir, Maryam Nakhjavani, Parastoo Hajian, Farshad H Shirazi, Hamidreza Mirzaei
Human hepatocellular carcinoma is one of the most common recurrent malignancies since there is no effective therapy for it. Silibinin, a widely used drug and supplement for various liver disorders, demonstrated anti-cancer effects on human hepatocellular carcinoma, human prostate adenocarcinoma cells, human breast carcinoma cells, human ectocervical carcinoma cells, and human colon cancer cells. Considering the anti-hepatotoxic activity of silibinin and its strong preventive and anti-cancer efficacy against various epithelial cancers, we investigated the efficacy of silibinin against human HCC and HUVEC cell lines...
2018: Iranian Journal of Pharmaceutical Research: IJPR
https://www.readbyqxmd.com/read/29755534/nano-packaged-tamoxifen-and-curcumin-effective-formulation-against-sensitive-and-resistant-mcf-7-cells
#19
Samira Hajigholami, Ziba Veisi Malekshahi, Narges Bodaghabadi, Farhod Najafi, Hadi Shirzad, Majid Sadeghizadeh
Tamoxifen is routinely used for treatment of Estrogen-positive breast carcinoma. Approximately, 50% of patients with metastatic cancer will develop resistance to Tamoxifen. In this research, Tamoxifen was combined with the anti-cancer compound Curcumin. Diblocknanopolymer was used to package the new formulation of Curcumin and Tamoxifen. Anti-cancer efficacy of the obtained compound was evaluated in Tamoxifen-sensitive (TS). MCF-7, Tamoxifen-resistant (TR) MCF-7 cancer cells and Fibroblast cells. MTT assay was used to evaluate anti-proliferation and toxicity...
2018: Iranian Journal of Pharmaceutical Research: IJPR
https://www.readbyqxmd.com/read/29751795/inhibition-of-glutamate-oxaloacetate-transaminase-1-in-cancer-cell-lines-results-in-altered-metabolism-with-increased-dependency-of-glucose
#20
Xiaoshan Zhou, Sophie Curbo, Fuqiang Li, Shuba Krishnan, Anna Karlsson
BACKGROUND: Glutamate oxaloacetate transaminase 1 (GOT1) regulates cellular metabolism through coordinating the utilization of carbohydrates and amino acids to meet nutrient requirements. KRAS mutated cancer cells were recently shown to rely on GOT1 to support long-term cell proliferation. The aim of the present study was to address the role of GOT1 in the metabolic adaption of cancer cells. METHODS: GOT1-null and knockdown cell lines were established through CRISPR/Cas9 and shRNA techniques...
May 11, 2018: BMC Cancer
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