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Breast cancer tumor markers

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https://www.readbyqxmd.com/read/29684587/trpm7-controls-mesenchymal-features-of-breast-cancer-cells-by-tensional-regulation-of-sox4
#1
Arthur J Kuipers, Jeroen Middelbeek, Kirsten Vrenken, Carlos Pérez-González, Geert Poelmans, Jeffrey Klarenbeek, Kees Jalink, Xavier Trepat, Frank N van Leeuwen
Mechanically induced signaling pathways are important drivers of tumor progression. However, if and how mechanical signals affect metastasis or therapy response remains poorly understood. We previously found that the channel-kinase TRPM7, a regulator of cellular tension implicated in mechano-sensory processes, is required for breast cancer metastasis in vitro and in vivo. Here, we show that TRPM7 contributes to maintaining a mesenchymal phenotype in breast cancer cells by tensional regulation of the EMT transcription factor SOX4...
April 20, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29684527/co-delivery-of-docetaxel-and-gemcitabine-using-pegylated-self-assembled-stealth-nanoparticles-for-improved-breast-cancer-therapy
#2
Varun Kushwah, Sameer S Katiyar, Ashish Kumar Agrawal, Ramesh C Gupta, Sanyog Jain
The present report deals with conjugation of dual drug; docetaxel (DTX) and gemcitabine (GEM) with linker poly-ethylene-glycol (PEG) to develop amphiphilic molecule having self-assembled property. The synthesized conjugate (DTX-PEG-GEM) demonstrated critical micelle concentration (CMC) in the range of 5-10μg/ml which self-assembled to form NPs with size 124.2±5.7. Remarkably higher coumarin-6 (C-6) fluorescence signals observed in case of C-6 loaded NPs, suggested enhanced cellular uptake via clathrin mediated endocytosis...
April 20, 2018: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/29682514/cutaneous-metastases-of-breast-cancer-during-adjuvant-chemotherapy-correlates-with-increasing-cd44-cd24-and-aldh-1-expression-a-case-report-and-literature-review
#3
Jung Sun Lee, Woo Gyeong Kim
Cancer stem cells (CSCs) within a tumor are scarce and self-sustaining and they have the abilities for self-renewal and the potential of giving rise to diverse types of cells that compose the tumor. These cells are suggested to be associated with therapeutic failure, and therefore they remain as an important issue in this regard. We report the cases of two breast cancer patients diagnosed with rapid cutaneous metastases during adjuvant cytotoxic chemotherapy after curative mastectomy. For elucidating a relationship between CSCs and resistance to chemotherapy, we evaluated primary tumor and metastatic cutaneous lesions by CSC markers in immunohistochemical stains (CD44+ /CD24- and ALDH-1)...
2018: Stem Cell Investigation
https://www.readbyqxmd.com/read/29682102/expression-of-pentose-phosphate-pathway-related-proteins-in-breast-cancer
#4
Junjeong Choi, Eun-Sol Kim, Ja Seung Koo
Purpose: The purpose of this study was to assess the expression of pentose phosphate pathway- (PPP-) related proteins and their significance in clinicopathologic factors of breast cancer. Methods: Immunohistochemical staining for PPP-related proteins (glucose-6-phosphate dehydrogenase [G6PDH], 6-phosphogluconolactonase [6PGL], 6-phosphogluconate dehydrogenase [6PGDH], and nuclear factor-erythroid 2-related factor 2 [NRF2]) was performed using tissue microarray (TMA) of 348 breast cancers...
2018: Disease Markers
https://www.readbyqxmd.com/read/29682089/large-scale-analysis-of-dfna5-methylation-reveals-its-potential-as-biomarker-for-breast-cancer
#5
Lieselot Croes, Matthias Beyens, Erik Fransen, Joe Ibrahim, Wim Vanden Berghe, Arvid Suls, Marc Peeters, Patrick Pauwels, Guy Van Camp, Ken Op de Beeck
Background: Breast cancer is the most frequent cancer among women worldwide. Biomarkers for early detection and prognosis of these patients are needed. We hypothesized that deafness , autosomal dominant 5 ( DFNA5 ) may be a valuable biomarker, based upon strong indications for its role as tumor suppressor gene and its function in regulated cell death. In this study, we aimed to analyze DFNA5 methylation and expression in the largest breast cancer cohort to date using publicly available data from TCGA, in order to further unravel the role of DFNA5 as detection and/or prognostic marker in breast cancer...
2018: Clinical Epigenetics
https://www.readbyqxmd.com/read/29680194/the-challenge-of-evaluating-adnexal-masses-in-patients-with-breast-cancer
#6
REVIEW
Tomás Reinert, Angélica Nogueira-Rodrigues, Fabiola Procacci Kestelman, Patricia Ashton-Prolla, Márcia Silveira Graudenz, José Bines
This narrative literature review addresses the problem of an adnexal mass discovered during the course of breast cancer (BC) care, which may represent a benign condition, a metastatic process, or a primary ovarian cancer (OC), clinical scenarios associated with distinct physiopathology and prognosis. Furthermore, the coexistence of BC and OC in the same patient may be owing to a hereditary disorder, deserving specific management strategies and counseling. The initial detection and evaluation of an adnexal mass in a patient with BC requires a high index of suspicion, and the initial workup should include a thorough medical history and physical examination, measurement of tumor markers, complete blood count, and imaging tests...
March 12, 2018: Clinical Breast Cancer
https://www.readbyqxmd.com/read/29679564/frequencies-and-expression-levels-of-programmed-death-ligand-1-pd-l1-in-circulating-tumor-rna-ctrna-in-various-cancer-types
#7
Toshiyuki Ishiba, Andreas-Claudius Hoffmann, Joshua Usher, Yahya Elshimali, Todd Sturdevant, Mai Dang, Yolanda Jaimes, Rama Tyagi, Ronald Gonzalez, Mary Grino, Jacek K Pinski, Afsaneh Barzi, Luis E Raez, Wilfried E Eberhardt, Dirk Theegarten, Heinz-Josef Lenz, Hiroyuki Uetake, Peter V Danenberg, Kathleen Danenberg
BACKGROUND: Precision medicine and prediction of therapeutic response requires monitoring potential biomarkers before and after treatment. Liquid biopsies provide noninvasive prognostic markers such as circulating tumor DNA and RNA. Circulating tumor RNA (ctRNA) in blood is also used to identify mutations in genes of interest, but additionally, provides information about relative expression levels of important genes. In this study, we analyzed PD-L1 expression in ctRNA isolated from various cancer types...
April 18, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29678846/the-predictive-significance-of-metastasis-associated-in-colon-cancer-1-macc1-in-primary-breast-cancer
#8
Jasminka Prguda-Mujic, Karin Milde-Langosch, Volkmar Mueller, Mirza Suljagic, Jozo Coric, Daria Ler
BACKGROUND: Metastasis-Associated in Colon Cancer-1(MACC1) was first identified as a transcriptional activator of the HGF/MET pathway. Deregulation of HGF/MET signaling is reported as a prognostic marker for tumorigenesis, early stage invasion, and metastasis which is associated with poor clinical outcome in breast cancer patients. The aim of the present study was to further investigate the prognostic or predictive value of MACC1 expression in breast cancer. MATERIALS AND METHODS: We analyzed the MACC1 expression in 105 primary breast cancer samples by Western-Blot analysis and immunohistochemistry...
March 2018: Annals of Clinical and Laboratory Science
https://www.readbyqxmd.com/read/29672601/expression-of-immune-checkpoint-regulators-cytotoxic-t-lymphocyte-antigen-4-ctla-4-and-programmed-death-ligand-1-pd-l1-in-female-breast-carcinomas
#9
Ari Kassardjian, Peter I Shintaku, Neda A Moatamed
BACKGROUND: Immune checkpoint regulators, cytotoxic T lymphocyte antigen 4 (CTLA-4) and the programmed cell death protein-1/programmed death-ligand 1 (PD-1/PD-L1) have emerged as promising new targets for cancer therapeutics. While tumor expression of PD-L1 has been shown to have objective responses to anti-PD-L1 immunotherapies, the clinical implications of CTLA-4 expression in tumor cells or immune cells in the tumor microenvironment is still controversial. We investigated the expression of CTLA-4 and PD-L1 in human breast tumors and provided a scoring system for the systematic evaluation of CTLA-4 staining...
2018: PloS One
https://www.readbyqxmd.com/read/29670904/inflammatory-human-umbilical-cord-derived-mesenchymal-stem-cells-promote-stem-cell-like-characteristics-of-cancer-cells-in-an-il-1-%C3%AE-dependent-manner
#10
Xiaohe Luo, Shan Huang, Ningning He, Chen Liu, Yanan Chen, Yanhua Liu, Xue Mi, Na Li, Peiqing Sun, Zongjin Li, Rong Xiang, Weijun Su
To ensure the safety of clinical applications of MSCs, thorough understanding of their impacts on tumor initiation and progression is essential. Here, to further explore the complex dialog between MSCs and tumor cells, umbilical cord-derived mesenchymal stem cells (UC-MSCs) were employed to be cocultured with either breast or ovarian cancer cells. Though having no obvious influence on proliferation or apoptosis, UC-MSCs exerted intense stem cell-like properties promoting effects on both cancer models. Cocultured cancer cells showed enriched side population, enhanced sphere formation ability, and upregulated pluripotency-associated stem cell markers...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29667006/establishment-and-characterization-of-a-c57bl-6-mouse-model-of-bone-metastasis-of-breast-cancer
#11
Toru Hiraga, Tadashi Ninomiya
Bone is one of the most common sites of metastasis in patients with advanced breast cancer; however, the mechanisms of bone metastasis remain to be fully elucidated. Animal models are essential research tools for investigating the mechanisms of diseases and drug actions. To date, there have only been a few reports in which C57BL/6 mice were used for the study of bone metastases of breast cancer. In the current study, we found that intracardiac inoculation of C57BL/6 mouse-derived parental E0771 breast cancer cells (E0771/Pa) frequently lead to bone metastases in C57BL/6 mice within 2 weeks...
April 17, 2018: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/29666189/single-cell-rna-seq-reveals-cell-heterogeneity-and-hierarchy-within-mouse-mammary-epithelia
#12
Heng Sun, Zhengqiang Miao, Xin Zhang, Un In Chan, Sek Man Su, Sen Guo, Chris Koon Ho Wong, Xiaoling Xu, Chu-Xia Deng
The mammary gland is very intricately and well organized into distinct tissues, including epithelia, endothelia, adipocytes, and stromal and immune cells. Many mammary gland diseases, such as breast cancer arise from abnormalities in the mammary epithelium, which is mainly composed of two distinct lineages, the basal and luminal cells. Because of the limitation of traditional transcriptome analysis of bulk mammary cells, the hierarchy and heterogeneity of mammary cells within these two lineages remain unclear...
April 17, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29665170/breast-carcinoma-in-pregnancy-with-spheroid-like-placental-metastases-a-case-report
#13
Karolin Froehlich, Hanne Stensheim, Udo R Markert, Gitta Turowski
Breast cancer is one of the most common malignancies diagnosed in pregnancy. Although the tumor is often detected at an advanced stage, placental metastases are rare. Here, we describe the case of a woman with breast cancer recurrence during pregnancy and subsequent metastases. The focus of this study is the large amount of placenta metastases, which have been analyzed immunohistochemically. Staining with trophoblast markers (placenta alkaline phosphatase, beta human chorionic gonadotropin and human placental lactogen) showed the strict localization of metastases in the intervillous space without invasion into fetal tissue...
April 17, 2018: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/29663660/7-12-dimethylbenz-%C3%AE-anthracene-increases-cell-proliferation-and-invasion-through-induction-of-wnt-%C3%AE-catenin-signaling-and-emt-process
#14
Yeo-Jung Kwon, Dong-Jin Ye, Hyoung-Seok Baek, Young-Jin Chun
7,12-Dimethylbenz[α]anthracene (DMBA) is a hazardous component present in polluted environments. DMBA has been used as an experimental tool for in vivo tumor formation owing to its carcinogenic effects, but the detailed molecular mechanism of DMBA has not been fully established. To comprehend the carcinogenic mechanism of DMBA, we explored its effects in the breast cancer cell lines, MCF-7 and MDA-MB-231, and the cervical cancer cell line, HeLa. Cell viability assay and measurement of a proliferation marker showed that DMBA markedly increased cancer cell proliferation...
April 16, 2018: Environmental Toxicology
https://www.readbyqxmd.com/read/29662653/plasma-thymidine-kinase-1-activity-predicts-outcome-in-patients-with-hormone-receptor-positive-and-her2-negative-metastatic-breast-cancer-treated-with-endocrine-therapy
#15
Martina Bonechi, Francesca Galardi, Chiara Biagioni, Francesca De Luca, Mattias Bergqvist, Magnus Neumüller, Cristina Guarducci, Giulia Boccalini, Stefano Gabellini, Ilenia Migliaccio, Angelo Di Leo, Marta Pestrin, Luca Malorni
The aim of this study was to investigate if thymidine kinase-1 (TK1), a well-known proliferation marker, could represent a valid circulating biomarker to identify hormone receptor positive (HR+)/HER2 negative (HER2neg) metastatic breast cancer (MBC) patients most likely to benefit from endocrine therapy (ET). We used the DiviTum™ assay to analyze TK1 activity in cell lysates of three HR+/HER2neg BC cell lines and in plasma of 31 HR+/HER2neg MBC patients receiving ET. Blood samples were collected at treatment initiation, after one month and at disease progression...
March 27, 2018: Oncotarget
https://www.readbyqxmd.com/read/29662649/-18-fdg-pet-ct-and-molecular-markers-to-predict-response-to-neoadjuvant-chemotherapy-and-outcome-in-her2-negative-advanced-luminal-breast-cancers-patients
#16
Patricia de Cremoux, Lucie Biard, Brigitte Poirot, Philippe Bertheau, Luis Teixeira, Jacqueline Lehmann-Che, Fatiha A Bouhidel, Pascal Merlet, Marc Espié, Matthieu Resche-Rigon, Christos Sotiriou, David Groheux
Background: The efficacy of neoadjuvant chemotherapy regimens in advanced luminal breast cancer patients is difficult to predict. Intrinsic properties of breast tumors, including altered gene expression profile and dynamic evaluation of metabolic properties of tumor cells using positron emission tomography/computed tomography (PET/CT) of tumor cells, have been identified to guide patient's prognosis. The aim of this study is to determine if both analyses may improve the prediction of response to neoadjuvant chemotherapy in ER-positive / HER2-negative breast cancers (BCs) patients...
March 27, 2018: Oncotarget
https://www.readbyqxmd.com/read/29661738/overexpression-of-lox-in-triple-negative-breast-cancer
#17
Cornelia Leo, Christine Cotic, Victoria Pomp, Daniel Fink, Zsuzsanna Varga
BACKGROUND: Triple negative breast cancer (TNBC) accounts for approximately 15% of breast cancers. It is associated with a poor prognosis and typically earlier onset of metastasis in comparison with other breast cancer subtypes. Since TNBC lacks the expression of estrogen and progesterone receptors and Her2 status is also negative, there is currently no target that can be used for systemic therapy. Epithelial-mesenchymal transition (EMT) plays an important role in tumor progression and metastasis...
March 27, 2018: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/29660692/aggressive-phenotype-of-cells-disseminated-via-hematogenous-and-lymphatic-route-in-breast-cancer-patients
#18
Aleksandra Markiewicz, Anna Nagel, Jolanta Szade, Hanna Majewska, Jaroslaw Skokowski, Barbara Seroczynska, Tomasz Stokowy, Marzena Welnicka-Jaskiewicz, Anna J Zaczek
Intratumoral heterogeneity of breast cancer remains a major challenge in successful treatment. Failure of cancer therapies can also be accredited to inability to systemically eradicate cancer stem cells (CSCs). Recent evidence points to the role of epithelial-mesenchymal transition (EMT) in expanding the pool of tumor cells with CSCs features. Thus, we assessed expression level as well as heterogeneity of CSCs markers in primary tumors (PT), lymph node metastasis (LNM), and circulating tumor cells (CTCs)-enriched blood fractions in order to correlate them with signs of EMT activation as well as clinicopathological data of breast cancer patients...
April 13, 2018: Translational Oncology
https://www.readbyqxmd.com/read/29659933/circulating-tumor-cells-in-breast-cancer-patients-treated-by-neoadjuvant-chemotherapy-a-meta-analysis
#19
François-Clément Bidard, Stefan Michiels, Sabine Riethdorf, Volkmar Mueller, Laura J Esserman, Anthony Lucci, Bjørn Naume, Jun Horiguchi, Rafael Gisbert-Criado, Stefan Sleijfer, Masakazu Toi, Jose A Garcia-Saenz, Andreas Hartkopf, Daniele Generali, Françoise Rothé, Jeffrey Smerage, Laura Muinelo-Romay, Justin Stebbing, Patrice Viens, Mark Jesus M Magbanua, Carolyn S Hall, Olav Engebraaten, Daisuke Takata, José Vidal-Martínez, Wendy Onstenk, Noriyoshi Fujisawa, Eduardo Diaz-Rubio, Florin-Andrei Taran, Maria Rosa Cappelletti, Michail Ignatiadis, Charlotte Proudhon, Denise M Wolf, Jessica B Bauldry, Elin Borgen, Rin Nagaoka, Vicente Carañana, Jaco Kraan, Marisa Maestro, Sara Yvonne Brucker, Karsten Weber, Fabien Reyal, Dominic Amara, Mandar G Karhade, Randi R Mathiesen, Hideaki Tokiniwa, Antonio Llombart-Cussac, Alessandra Meddis, Paul Blanche, Koenraad d'Hollander, Klaus Pantel
Background: We conducted a meta-analysis in nonmetastatic breast cancer patients treated by neoadjuvant chemotherapy (NCT) to assess the clinical validity of circulating tumor cell (CTC) detection as a prognostic marker. Methods: We collected individual patient data from 21 studies in which CTC detection by CellSearch was performed in early breast cancer patients treated with NCT. The primary end point was overall survival, analyzed according to CTC detection, using Cox regression models stratified by study...
April 12, 2018: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/29658391/tgf%C3%AE-1-promotes-breast-cancer-local-invasion-and-liver-metastasis-by-increasing-the-cd44-high-cd24-subpopulation
#20
Chenjing Zhang, Huiqin Gao, Chao Li, Jiangfeng Tu, Zhihao Chen, Weiwei Su, Xiaoge Geng, Xiaojun Chen, Jingya Wang, Wensheng Pan
OBJECTIVE: Previous studies have shown that the transforming growth factor β1 pathway plays an important role in breast cancer metastasis to the liver. However, the mechanism of this metastasis has not been fully clarified. Cancer stem cells are essential for the initiation and propagation of tumor metastasis. The objective of our current study was to define the role of cancer stem cells in transforming growth factor β1-mediated breast cancer hepatic metastases. METHOD: Hematoxylin and eosin staining was used to assess the formation of breast cancer liver metastases and local invasion...
January 1, 2018: Technology in Cancer Research & Treatment
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