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https://www.readbyqxmd.com/read/28319780/new-bis-hydroxymethyl-alkanoate-curcuminoid-derivatives-exhibit-activity-against-triple-negative-breast-cancer-in%C3%A2-vitro-and-in%C3%A2-vivo
#1
Min-Tsang Hsieh, Ling-Chu Chang, Hsin-Yi Hung, Hui-Yi Lin, Mei-Hui Shih, Chang-Hai Tsai, Sheng-Chu Kuo, Kuo-Hsiung Lee
Novel bis(hydroxymethyl) alkanoate curcuminoid derivatives were designed, synthesized and screened for in vitro antiproliferative and in vivo antitumor activity. Selected new compound 9a and curcumin were further evaluated for inhibitory activity against ER(+)/PR(+) breast cancer (MCF-7, T47D), HER 2(+) breast cancer (SKBR3, BT474, and MDA-MB-457) and triple negative breast cancer (TNBC) (HS-578T, MDA-MB-157, and MDA-MB-468) cell lines. In addition, compound 9a was evaluated in the MDA-MB-231 xenograft nude mice model...
March 8, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28319275/mrf-ann-a-machine-learning-approach-for-automated-er-scoring-of-breast-cancer-immunohistochemical-images
#2
T Mungle, S Tewary, D K DAS, I Arun, B Basak, S Agarwal, R Ahmed, S Chatterjee, C Chakraborty
Molecular pathology, especially immunohistochemistry, plays an important role in evaluating hormone receptor status along with diagnosis of breast cancer. Time-consumption and inter-/intraobserver variability are major hindrances for evaluating the receptor score. In view of this, the paper proposes an automated Allred Scoring methodology for estrogen receptor (ER). White balancing is used to normalize the colour image taking into consideration colour variation during staining in different labs. Markov random field model with expectation-maximization optimization is employed to segment the ER cells...
March 20, 2017: Journal of Microscopy
https://www.readbyqxmd.com/read/28316212/-evaluation-and-classification-of-drug-therapy-for-breast-cancer-with-bone-only-metastasis
#3
X Y Meng, S T Song
Skeleton is one of the most common metastatic organs for breast cancer, which has a better prognosis than visceral metastases. Bone-only metastasis was defined"non-measurable" in the RECIST (Response Evaluation Criteria in Solid Tumors) criteria, and was excluded by clinical trials. However, patients with bone-only metastasis are also in need of effective treatment to prolong survival. Endocrine therapy is the most important treatment for bone metastatic patients. Tumor response of bone metastases can be determined objectively by bone-window CT...
March 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28315938/the-relationship-between-breast-cancer-molecular-subtypes-and-mast-cell-populations-in-tumor-microenvironment
#4
Anna Glajcar, Joanna Szpor, Agnieszka Pacek, Katarzyna Ewa Tyrak, Florence Chan, Joanna Streb, Diana Hodorowicz-Zaniewska, Krzysztof Okoń
Mast cells (MCs) are a part of the innate immune system. The MC functions toward cancer are partially based on the release of chymase and tryptase. However, the MC effect on breast cancer is controversial. The aim of our study was to investigate the presence of MCs in breast cancer tumors of different molecular subtypes and their relationships with other pathological prognostic factors. Tryptase- and chymase-positive mast cell densities were evaluated by immunohistochemistry in 108 primary invasive breast cancer tissue samples...
March 18, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28315505/clinicopathological-and-prognostic-value-of-cd24-expression-in-breast-cancer-a-meta-analysis
#5
Gao Liu, Guo-Xing Liu, Yu Fang, Zhen-Yu Cao, Hui-Hui Du, Jie Fu, Ke Qian
BACKGROUND: A number of studies have been conducted to explore the relationship between CD24 expression and the prognosis of breast cancer; however, the results remain inconsistent. Therefore, we performed this meta-analysis to clarify the impact of CD24 expression on clinicopathological features and prognosis of breast cancer. METHODS: A comprehensive literature search for relevant studies was performed, and statistical analysis was conducted using Stata software...
March 3, 2017: International Journal of Biological Markers
https://www.readbyqxmd.com/read/28314311/core-needle-biopsy-specimens-are-more-appropriate-than-surgical-specimens-for-evaluating-the-expression-of-phosphoproteins-as-biological-markers-in-invasive-breast-cancer
#6
Hyun-Ah Kim, Ji Hyun Kim, Hyang Suk Choi, Yun Gyoung Kim, Seok Joon Lee, Kang Hee Han, Min Ki Seong, Hye Sil Seol, Woo Chul Noh
BACKGROUND/AIM: To evaluate whether core needle biopsy specimens (CNBS) would be better than surgical specimens (SS) for evaluating phosphoproteins as biological markers in breast cancer. MATERIALS AND METHODS: This retrospective analysis included a total of 99 patients who had invasive breast cancer and were treated surgically between January 2012 and July 2013. The expression of phosphorylated ribosomal protein S6-kinase-1 (p-S6K1), phosphorylated protein kinase B (p-AKT), and estrogen receptor (ER) were assessed immunohistochemically on both CNBS and SS for each patient...
March 2017: Anticancer Research
https://www.readbyqxmd.com/read/28314283/stable-shrna-silencing-of-lactate-dehydrogenase-a-ldha-in-human-mda-mb-231-breast-cancer-cells-fails-to-alter-lactic-acid-production-glycolytic-activity-atp-or-survival
#7
Nzinga Mack, Elizabeth A Mazzio, David Bauer, Hernan Flores-Rozas, Karam F A Soliman
BACKGROUND: In the US, African Americans have a high death rate from triple-negative breast cancer (TNBC), characterized by lack of hormone receptors (ER, PR, HER2/ERRB2) which are otherwise valuable targets of chemotherapy. There is a need to identify novel targets that negatively impact TNBC tumorigenesis. TNBCs release an abundance of lactic acid, under normoxic, hypoxic and hyperoxic conditions; this referred to as the Warburg effect. Accumulated lactic acid sustains peri-cellular acidity which propels metastatic invasion and malignant aggressive transformation...
March 2017: Anticancer Research
https://www.readbyqxmd.com/read/28301567/integrated-analysis-of-promoter-mutation-methylation-and-expression-of-akt1-gene-in-chinese-breast-cancer-patients
#8
Jianfu Heng, Xinwu Guo, Wenhan Wu, Yue Wang, Guoli Li, Ming Chen, Limin Peng, Shouman Wang, Lizhong Dai, Lili Tang, Jun Wang
BACKGROUND: As downstream mediators of PI3K /PTEN /AKT /mTORC1 pathway, the AKT isoforms play critical roles in tumorgenesis. Although the pleiotropic effects of AKT1 in breast cancer have been reported, the genetic and epigenetic characteristics of AKT1 promoter region in breast cancer remains to be identified. In this study we aimed to investigate the promoter mutation spectrum, methylation and gene expression pattern of AKT1 and their relationship with breast cancer. METHODS: By using PCR target sequence enrichment and next-generation sequencing technology, we sequenced AKT1 promoter region in pairs of breast tumor and normal tissues from 95 unselected Chinese breast cancer patients...
2017: PloS One
https://www.readbyqxmd.com/read/28301514/apolipoprotein-d-expression-does-not-predict-breast-cancer-recurrence-among-tamoxifen-treated-patients
#9
Daniella Klebaner, Stephen Hamilton-Dutoit, Thomas Ahern, Anatasha Crawford, Thomas Jakobsen, Deirdre P Cronin-Fenton, Per Damkier, Emiel Janssen, Anders Kjaersgaard, Anne Gulbech Ording, Håvard Søiland, Henrik Toft Sørensen, Timothy L Lash, Ylva Hellberg
BACKGROUND: Apolipoprotein D (ApoD) has been proposed as a predictor of breast cancer recurrence among estrogen receptor-positive (ER+), tamoxifen-treated patients. METHODS: We conducted a population-based case-control study nested in a population of 11,251 women aged 35-69 years at diagnosis with Stage I-III breast cancer between 1985 and 2001 on Denmark's Jutland Peninsula and registered with the Danish Breast Cancer Cooperative Group. We identified 541 recurrent or contralateral breast cancers cases among women with ER+ disease treated with tamoxifen for at least 1 year and 300 cases in women with ER- disease never treated with tamoxifen...
2017: PloS One
https://www.readbyqxmd.com/read/28301080/hsp90-inhibitor-auy922-can-reverse-fulvestrant-induced-feedback-reaction-in-human-breast-cancer-cells
#10
Jingchao Bai, Guanglin Zhou, Yufan Qiu, Yunhui Hu, Jingjing Liu, Jing Zhao, Sheng Zhang, Jin Zhang
Hormone therapy has become one of the main strategy for breast cancer, however, many estrogen receptor(ER) positive patients ends in tumor collapse due to initial or acquired resistance to hormone treatment, which includes Fulvestrant. Here we report that ErbB Receptors and downstream PI3K/AKT and ERK pathway have been reactivated after treatment of Fulvestrant in ER positive MCF-7 and T47D cells, which are related to Fulvestrant resistance. HSP90 is a universally expressed chaperone protein and plays a vital role in both normal and cancer cells, HSP90 inhibitor AUY922 can reverse this feedback reactivation effect of Fulvestrant by targeting multiple proteins related in ErbB Receptors, PI3K/AKT and ERK pathway, which is much better than single targeting inhibitors...
March 16, 2017: Cancer Science
https://www.readbyqxmd.com/read/28299888/the-relationship-of-race-oncotype-dx-and-ki67-in-a-population-highly-screened-for-breast-cancer
#11
Amber A Guth, Jennifer Chun Kim, Shira Schwartz, Jennifer Montes, Rebecca Akiko Snyder, Deborah Axelrod, Freya Schnabel
Oncotype DX recurrence score (ODX) can predict risk of invasive breast cancer recurrence and benefit of chemotherapy. Literature is limited on the relationship of ODX and race in women with hormone receptor positive and node negative/positive disease. Our study examines the relationship between race and clinical characteristics within a population of highly screened women with newly diagnosed breast cancer. The institutional Breast Cancer Database was queried for patients with newly diagnosed breast cancer between January2010 and March2015...
March 2017: Breast Journal
https://www.readbyqxmd.com/read/28297421/characteristics-of-quantitative-perfusion-parameters-on-dynamic-contrast-enhanced-mri-in-mammographically-occult-breast-cancer
#12
Jung Kyu Ryu, Sun Jung Rhee, Jeong Yoon Song, Soo Hyun Cho, Geon-Ho Jahng
The purpose of this study was to compare the characteristics of quantitative perfusion parameters obtained from dynamic contrast-enhanced (DCE) magnetic resonance imaging (MRI) in patients with mammographically occult (MO) breast cancers and those with mammographically visible (MV) breast cancers. Quantitative parameters (AUC, Ktrans,kep,ve,vp, and wi) from 13 MO breast cancers and 16 MV breast cancers were mapped after the DCE-MRI data were acquired. Various prognostic factors, including axillary nodal status, estrogen receptor (ER), progesterone receptor (PR), Ki-67, p53, E-cadherin, and human epidermal growth factor receptor 2 (HER2) were obtained in each group...
September 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28295860/relationships-between-mri-breast-imaging-reporting-and-data-system-bi-rads-lexicon-descriptors-and-breast-cancer-molecular-subtypes-internal-enhancement-is-associated-with-luminal-b-subtype
#13
Lars J Grimm, Jing Zhang, Jay A Baker, Mary S Soo, Karen S Johnson, Maciej A Mazurowski
The aim of this study was to determine the associations between breast MRI findings using the Breast Imaging-Reporting and Data System (BI-RADS) lexicon descriptors and breast cancer molecular subtypes. In this retrospective, IRB-approved, single institution study MRIs from 278 women with breast cancer were reviewed by one of six fellowship-trained breast imagers. Readers reported BI-RADS descriptors for breast masses (shape, margin, internal enhancement) and non-mass enhancement (distribution, internal enhancement)...
March 13, 2017: Breast Journal
https://www.readbyqxmd.com/read/28295003/-epithelial-cadherins-and-associated-molecules-in-invasive-lobular-breast-cancer
#14
Yu M Brilliant, A A Brilliant, S V Sazonov
AIM: to estimate the expression of cell adhesion molecules E- and P-cadherin, as well as that of cadherin-catenin complexes in invasive lobular breast cancer (BC) cells. MATERIAL AND METHODS: 250 cases of postoperative material from patients diagnosed with invasive lobular BC were studied. The expressions of cell adhesion molecules E-cadherin, P-cadherin, β-catenin, p120 catenin, and vimentin were determined by immunohistochemical assay in all cases. The examined cases were divided into molecular biological subtypes, based on the evaluation of estrogen receptors (ER), progesterone receptors (PR), HER-2/neu, and Ki-67 proliferative index...
2017: Arkhiv Patologii
https://www.readbyqxmd.com/read/28292362/invasive-ductal-carcinoma-correlation-of-immunophenotypic-features-with-age
#15
Fouzia Lateef, Saba Jamal, Surrayya Nasir, Zainab Jamil
OBJECTIVE: To evaluate the frequency of hormone receptors and Her2neu expression and their correlation with age in patients of carcinoma breast. STUDY DESIGN: Descriptive, cross-sectional study. PLACE AND DURATION OF STUDY: Department of Histopathology, Dr. Ziauddin Hospital, Karachi, between the period 2006 - 2013. METHODOLOGY: Estrogen receptors, progesterone receptors and Her2neu immunohistochemical staining was performed on all specimens of carcinoma breast of female patients...
January 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28292025/design-synthesis-and-anticancer-screening-of-3-3-substituted-phenyl-acryloyl-2h-chromen-2ones-as-selective-anti-breast-cancer-agent
#16
Santosh N Mokale, Afreen Begum, Nikhil S Sakle, Vishakha R Shelke, Swati A Bhavale
By utilizing concept of molecular hybridization, involving combination of various Pharmacophore, novel substituted coumarin-chalcone hybrids was synthesized and evaluated for anti-proliferative activity against estrogen receptor-positive MCF-7 and negative MDA-MB-435 breast cancer cell lines. In-vivo study was carried out by N-methyl nitrosourea (MNU) induced mammary carcinoma in virgin female Spraque Dawly (SD) rats. The compound 5b has highest potential than standard drug Adriamycin, comparable against Tamoxifen against ER-positive MCF-7 breast cancer cell lines...
March 9, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28286675/ductal-breast-carcinoma-in-situ-mammographic-features-and-its-relation-to-prognosis-and-tumour-biology-in-a-population-based-cohort
#17
Wenjing Zhou, Thomas Sollie, Tibor Tot, Carl Blomqvist, Shahin Abdsaleh, Göran Liljegren, Fredrik Wärnberg
Casting-type calcifications and a histopathological picture with cancer-filled duct-like structures have been presented as breast cancer with neoductgenesis. We correlated mammographic features and histopathological neoductgenesis with prognosis in a DCIS cohort with long follow-up. Mammographic features were classified into seven groups according to Tabár. Histopathological neoductgenesis was defined by concentration of ducts, lymphocyte infiltration, and periductal fibrosis. Endpoints were ipsilateral (IBE) in situ and invasive events...
2017: International Journal of Breast Cancer
https://www.readbyqxmd.com/read/28285967/prognostic-factors-in-mnu-and-dmba-induced-mammary-tumors-in-female-rats
#18
Antonieta Alvarado, Ana C Lopes, Ana I Faustino-Rocha, António M S Cabrita, Rita Ferreira, Paula A Oliveira, Bruno Colaço
Chemically-induced mammary tumors in rats by the carcinogens 1-methyl-1-nitrosourea- (MNU) and 7,12-dimethylbenz[a]anthracene (DMBA) are the most widely used models for studies related with human breast cancer. This study aimed to evaluate the immunoexpression of the prognostic factors estrogen receptor α (ERα), progesterone receptor (PR) and Ki-67, in MNU and DMBA-induced rat mammary tumors, in order to know the model that best suits to woman breast cancer. Twenty-eight MNU-induced and 16 DMBA-induced mammary tumors in virgin female Sprague-Dawley rats were analyzed...
February 24, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28285212/glycogen-rich-clear-cell-carcinoma-grcc-of-the-breast-may-not-have-a-poor-prognosis
#19
Muna M Baslaim, Enaam M Junainah, Hadeel H Ahmad, Anmar F Semilan, Ahmed O Al-Ghamdi, Noora O Rahimuddin, Budoor A Salman
INTRODUCTION: Glycogen Rich Clear Cell Carcinoma (GRCC) is a rare variant of breast carcinomas and believed to be linked with a poor prognosis. CASE SUMMARY: We are presenting a 60-year-old Saudi lady with a 2cm GRCC carcinoma associated with clear cell ductal carcinoma in situ (DCIS) and no axillary lymph node involvement. The tumor was Estrogen and Progesterone receptors (ER & PR) positive and HER 2-neu negative. She underwent mastectomy with sentinel lymph node biopsy followed by hormonal therapy...
February 27, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28283903/detection-of-esr1-mutations-in-plasma-and-tumors-from-metastatic-breast-cancer-patients-using-next-generation-sequencing
#20
Takehiro Yanagawa, Naofumi Kagara, Tomohiro Miyake, Tomonori Tanei, Yasuto Naoi, Masafumi Shimoda, Kenzo Shimazu, Seung Jin Kim, Shinzaburo Noguchi
PURPOSE: Liquid biopsy using digital PCR (dPCR) has been widely used for the screening of ESR1 mutations, since they are frequently identified in the hotspot. However, dPCR is limited to the known mutations. Therefore, we aimed to analyze the utility of next-generation sequencing (NGS) to discover novel ESR1 mutations. METHODS: Whole exon sequencing of the ESR1 gene using NGS was performed in 16 primary and 47 recurrent tumor samples and 38 plasma samples from hormone receptor-positive metastatic breast cancer patients...
March 10, 2017: Breast Cancer Research and Treatment
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