keyword
MENU ▼
Read by QxMD icon Read
search

Breast cancer microRNA

keyword
https://www.readbyqxmd.com/read/29142594/micrornas-a-subpopulation-of-regulators-are-involved-in-breast-cancer-progression-through-regulating-breast-cancer-stem-cells
#1
Xuemei Fan, Wei Chen, Ziyi Fu, Lihua Zeng, Yongmei Yin, Hongyan Yuan
Cancer stem cells (CSCs; also known as tumor-initiating cells) are essential effectors of tumor progression due to their self-renewal capacity, differentiation potential, tumorigenic ability and resistance to chemotherapy, all of which contribute to cancer relapse, metastasis and a poor prognosis. Breast cancer stem cells (BCSCs) have been identified to be involved in the processes of BC initiation, growth and recurrence. MicroRNAs (miRNAs) are a class of non-coding small RNAs of 19-23 nucleotides in length that regulate gene expression at the post-transcriptional level through various mechanisms, and serve critical roles in cancer progression...
November 2017: Oncology Letters
https://www.readbyqxmd.com/read/29141971/role-of-microrna-regulation-in-obesity-associated-breast-cancer-nutritional-perspectives
#2
REVIEW
Ravi Kasiappan, Dheeran Rajarajan
Breast cancer is the most common malignancy diagnosed in women, and the incidence of breast cancer is increasing every year. Obesity has been identified as one of the major risk factors for breast cancer progression. The mechanisms by which obesity contributes to breast cancer development is not yet understood; however, there are a few mechanisms counted as potential producers of breast cancer in obesity, including insulin resistance, chronic inflammation and inflammatory cytokines, adipokines, and sex hormones...
November 2017: Advances in Nutrition
https://www.readbyqxmd.com/read/29141042/a-tissue-microrna-signature-that-predicts-the-prognosis-of-breast-cancer-in-young-women
#3
Ai Hironaka-Mitsuhashi, Juntaro Matsuzaki, Ryou-U Takahashi, Masayuki Yoshida, Yutaka Nezu, Yusuke Yamamoto, Sho Shiino, Takayuki Kinoshita, Toshikazu Ushijima, Nobuyoshi Hiraoka, Chikako Shimizu, Kenji Tamura, Takahiro Ochiya
Since breast cancers in young women are generally aggressive, young patients tend to be intensively treated with anti-cancer drugs. To optimize the strategy for treatment, particularly in young women, prognostic biomarkers are urgently required. The objective of this study was to identify a tissue microRNA (miRNA) signature that predicts prognosis in young breast cancer patients. Total RNA from 45 breast cancer patients aged <35 years was extracted from formalin-fixed paraffin-embedded (FFPE) tissues and analyzed using miRNA microarrays...
2017: PloS One
https://www.readbyqxmd.com/read/29138345/novel-predictors-of-breast-cancer-survival-derived-from-mirna-activity-analysis
#4
Vasily N Aushev, Eunjee Lee, Jun Zhu, Kalpana Gopalakrishnan, Qian Li, Susan L Teitelbaum, James G Wetmur, Davide Degli Esposti, Hector Hernandez-Vargas, Zdenko Herceg, Humberto Parada, Regina M Santella, Marilie D Gammon, Jia Chen
PURPOSE: Breast cancer is among the leading causes of cancer death; discovery of novel prognostic markers is needed to improve outcomes. Combining systems biology and epidemiology, we investigated microRNA-associated genes and breast cancer survival in a well-characterized population-based study. EXPERIMENTAL DESIGN: A recently developed algorithm, ActMiR, was used to identify key microRNAs "activities" which were predictive of breast cancer mortality in published databases...
November 14, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29137394/measuring-plasma-levels-of-three-micrornas-can-improve-the-accuracy-for-identification-of-malignant-breast-lesions-in-women-with-bi-rads-4-mammography
#5
Julia Alejandra Pezuk, Thiago Luiz Araujo Miller, José Luiz Barbosa Bevilacqua, Alfredo Carlos Simões Dornellas de Barros, Felipe Eduardo Martins de Andrade, Luiza Freire de Andrade E Macedo, Vera Aguilar, Amanda Natasha Menardo Claro, Anamaria Aranha Camargo, Pedro Alexandre Favoretto Galante, Luiz F L Reis
A BI-RADS category of 4 from a mammogram indicates suspicious breast lesions, which require core biopsies for diagnosis and have an approximately one third chance of being malignant. Human plasma contains many circulating microRNAs, and variations in their circulating levels have been associated with pathologies, including cancer. Here, we present a novel methodology to identify malignant breast lesions in women with BI-RADS 4 mammography. First, we used the miRNome array and qRT-PCR to define circulating microRNAs that were differentially represented in blood samples from women with breast tumor (BI-RADS 5 or 6) in comparison to controls (BI-RADS 1 or 2)...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29137386/mitochondrial-calcium-uniporter-as-a-target-of-microrna-340-and-promoter-of-metastasis-via-enhancing-the-warburg-effect
#6
Changhui Yu, Yuhao Wang, Jiawen Peng, Qiang Shen, Mimi Chen, Wei Tang, Xiumei Li, Chunqing Cai, Bin Wang, Shaoxi Cai, Xiaojing Meng, Fei Zou
Background: A shift from oxygen phosphorylation to aerobic glycolysis was known as the Warburg effect and a characteristic of cancer cell metabolism facilitating metastasis. Mitochondrial calcium uniporter (MCU), a key ion channel that mediates Ca(2+) uptake into mitochondria, was found to promote cancer progression and metastasis. However, its explicit role in shifting metabolism of breast cancer cells has not been defined. Methods: We evaluated MCU overexpression or knock-down on migration, invasion and glucose metabolismin breast cancer cells...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29137351/microrna-200-associated-with-metastatic-breast-cancer-promotes-traits-of-mammary-luminal-progenitor-cells
#7
Lourdes Sánchez-Cid, Mònica Pons, Juan José Lozano, Nuria Rubio, Marta Guerra-Rebollo, Aroa Soriano, Laia Paris-Coderch, Miquel F Segura, Raquel Fueyo, Judit Arguimbau, Erika Zodda, Raquel Bermudo, Immaculada Alonso, Xavier Caparrós, Marta Cascante, Arash Rafii, Yibin Kang, Marian Martínez-Balbás, Stephen J Weiss, Jerónimo Blanco, Montserrat Muñoz, Pedro L Fernández, Timothy M Thomson
MicroRNAs are critical regulators of gene networks in normal and abnormal biological processes. Focusing on invasive ductal breast cancer (IDC), we have found dysregulated expression in tumor samples of several microRNAs, including the miR-200 family, along progression from primary tumors to distant metastases, further reflected in higher blood levels of miR-200b and miR-7 in IDC patients with regional or distant metastases relative to patients with primary node-negative tumors. Forced expression of miR-200s in MCF10CA1h mammary cells induced an enhanced epithelial program, aldehyde dehydrogenase (ALDH) activity, mammosphere growth and ability to form branched tubuloalveolar structures while promoting orthotopic tumor growth and lung colonization in vivo...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29136926/simple-g-quadruplex-based-2-aminopurine-fluorescence-probe-for-highly-sensitive-and-amplified-detection-of-microrna-21
#8
Shiyu Li, Chan Liu, Hang Gong, Chunyan Chen, Xiaoming Chen, Changqun Cai
Based on 2-aminopurine (2-AP) probe in conjunction with a G-quadruplex structure and signal amplification technique, a simple and highly sensitive fluorescence sensor for detecting microRNA (miRNA) is developed for high signal-to-background ratio and wide linear range. The proposed sensor contains two hairpins DNA: H1 and H2. H1 is labeled by 2-AP incorporated into a G-rich sequence. Upon the addition of a target miRNA, H1 is unfolded and forms DNA/RNA complexes that contain a G-quadruplex, thereby significantly enhancing 2-AP fluorescence due to the protection provided by the G-quadruplex...
February 1, 2018: Talanta
https://www.readbyqxmd.com/read/29133945/microrna-7-5p-mediates-the-signaling-of-hepatocyte-growth-factor-to-suppress-oncogenes-in-the-mcf-10a-mammary-epithelial-cell
#9
Dawoon Jeong, Juyeon Ham, Sungbin Park, Seungyeon Lee, Hyunkyung Lee, Han-Sung Kang, Sun Jung Kim
MicroRNA-7 (miR-7) is a non-coding RNA of 23-nucleotides that has been shown to act as a tumor suppressor in various cancers including breast cancer. Although there have been copious studies on the action mechanisms of miR-7, little is known about how the miR is controlled in the mammary cell. In this study, we performed a genome-wide expression analysis in miR-7-transfected MCF-10A breast cell line to explore the upstream regulators of miR-7. Analysis of the dysregulated target gene pool predicted hepatocyte growth factor (HGF) as the most plausible upstream regulator of miR-7...
November 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29132384/mir-361-5p-inhibits-glycolytic-metabolism-proliferation-and-invasion-of-breast-cancer-by-targeting-fgfr1-and-mmp-1
#10
Fei Ma, Lei Zhang, Li Ma, Yiyun Zhang, Jianguo Zhang, Baoliang Guo
BACKGROUND: MicroRNAs function as key regulators in various human cancers, including breast cancer (BC). MiR-361-5p has been proved to be a tumor suppressor in colorectal cancer and gastric cancer in our previous study. In this study, we aim to find out the function of miR-361-5p in breast cancer progression and elaborate the mechanism that miR-361-5p acts its function in breast cancer. METHODS AND RESULTS: Here we reported that miR-361-5p was down-regulated in breast cancer tissue compared with normal breast tissue and the expression of miR-361-5p was positively associated with prognosis in BC patients...
November 13, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/29128203/study-of-correlation-between-genetic-variants-in-three-microrna-genes-hsa-mir-146a-hsa-mir-502-binding-site-hsa-mir-27a-and-breast-cancer-risk
#11
S Parchami Barjui, S Reiisi, S O Ebrahimi, B Shekari
BACKGROUND AND AIM: MicroRNAs (miRNAs) represent noncoding RNAs that play a role in the gene regulation of oncogenes and tumor suppressors. Single nucleotide polymorphisms (SNPs) in miRNA genes are associated with risk of cancer. Some of these SNPs are more common including rs2910164 in the miR-146a, rs895819 in the miR-27a, and rs2910164 in the miR-502 binding site of the SET8. Our aim was to investigate the association between these polymorphisms and the risk of breast cancer in an Iranian population...
November 8, 2017: Current Research in Translational Medicine
https://www.readbyqxmd.com/read/29126392/mir-17-5p-suppresses-cell-proliferation-and-invasion-by-targeting-etv1-in-triple-negative-breast-cancer
#12
Jie Li, Yuanhui Lai, Jieyi Ma, Yue Liu, Jiong Bi, Longjuan Zhang, Lianzhou Chen, Chen Yao, Weiming Lv, Guangqi Chang, Shenming Wang, Mao Ouyang, Wenjian Wang
BACKGROUND: Triple-negative breast cancer (TNBC) is the malignancy with the worst outcome among all breast cancer subtypes. We reported that ETV1 is a significant oncogene in TNBC tumourigenesis. Consequently, investigating the critical regulatory microRNAs (miRNAs) of ETV1 may be beneficial for TNBC targeted therapy. METHODS: We performed in situ hybridization (ISH) and immunohistochemistry (IHC) to detect the location of miR-17-5p and ETV1 in TNBC patient samples, respectively...
November 10, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29126102/mirna-513a-5p-inhibits-progesterone-receptor-expression-and-constitutes-a-risk-factor-for-breast-cancer-the-ordet-prospective-study
#13
P Muti, S Donzelli, A Sacconi, A Hossain, F Ganci, T Frixa, S Sieri, V Krogh, F Berrino, F Biagioni, S Strano, J Beyene, Y Yarden, G Blandino
MicroRNAs (miRNAs) might be considered both predictors and players of cancer development. The aim of the present report was to investigate whether many years before the diagnosis of breast cancer miRNA expression is already disregulated. In order to test this hypothesis we compared miRNAs extracted from leukocytes in healthy women who later developed breast cancer and in women who remain healthy during the whole fifteen-year follow-up time. Accordantly, we used a case-control study design nested in the ORDET prospective cohort study addressing the possibility that miRNAs can serve as both early biomarkers and components of the hormonal etiological pathways leading to breast cancer development in premenopausal women...
November 4, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/29125598/a-mir-20a-mapk1-c-myc-regulatory-feedback-loop-regulates-breast-carcinogenesis-and-chemoresistance
#14
Wengong Si, Jiaying Shen, Chengyong Du, Danni Chen, Xidong Gu, Chenggong Li, Minya Yao, Jie Pan, Junchi Cheng, Donghai Jiang, Liang Xu, Chang Bao, Peifen Fu, Weimin Fan
Chemoresistance often leads to the failure of breast cancer treatment. MicroRNAs (miRNAs) play an important role in the progression and chemoresistance of cancer. However, because of the complexity of the mechanisms of chemoresistance and the specificity of miRNA regulation in different cell types, the function of miR-20a in breast cancer chemoresistance is still unclear. Here, by using miRNA microarray and high-content screening techniques, we found that miR-20a/b were significantly downregulated in breast cancer tissues compared with normal breast tissues, and low miR-20a/b expression was correlated with poor survival in breast cancer patients...
November 10, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/29121557/a-ratiometric-electrochemical-biosensor-for-the-exosomal-micrornas-detection-based-on-bipedal-dna-walkers-propelled-by-locked-nucleic-acid-modified-toehold-mediate-strand-displacement-reaction
#15
Jing Zhang, Liang-Liang Wang, Mei-Feng Hou, Yao-Kun Xia, Wen-Hui He, An Yan, Yun-Ping Weng, Lu-Peng Zeng, Jing-Hua Chen
Sensitive and selective detection of microRNAs (miRNAs) in cancer cells derived exosomes have attracted rapidly growing interest owing to their potential in diagnostic and prognostic applications. Here, we design a ratiometric electrochemical biosensor based on bipedal DNA walkers for the attomolar detection of exosomal miR-21. In the presence of miR-21, DNA walkers are activated to walk continuously along DNA tracks, resulting in conformational changes as well as considerable increases of the signal ratio produced by target-respond and target-independent reporters...
November 1, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29116653/mir-128-regulation-of-glucose-metabolism-and-cell-proliferation-in-triple-negative-breast-cancer
#16
M Xiao, C Lou, H Xiao, Y Yang, X Cai, C Li, S Jia, Y Huang
BACKGROUND: Triple-negative breast cancer (TNBC) is prone to metastasis and has a poor prognosis, with lower survival rates than other breast cancer subtypes. MicroRNAs have recently emerged as powerful regulators of cancer processes and become a promising target in cancer therapy. METHODS: Expression of miR-128 was examined in invasive ductal breast cancer, and its relationship with clinicopathological features analysed. A series of in vitro and in vivo experiments were performed to investigate the function and mechanism of miR-128 in the development of invasive ductal breast cancer...
November 8, 2017: British Journal of Surgery
https://www.readbyqxmd.com/read/29115935/microrna-expression-patterns-in-canine-mammary-cancer-show-significant-differences-between-metastatic-and-non-metastatic-tumours
#17
Malgorzata Bulkowska, Agata Rybicka, Kerem Mert Senses, Katarzyna Ulewicz, Katarzyna Witt, Joanna Szymanska, Bartlomiej Taciak, Robert Klopfleisch, Eva Hellmén, Izabella Dolka, Ali O Gure, Joanna Mucha, Mariusz Mikow, Slawomir Gizinski, Magdalena Krol
BACKGROUND: MicroRNAs may act as oncogenes or tumour suppressor genes, which make these small molecules potential diagnostic/prognostic factors and targets for anticancer therapies. Several common oncogenic microRNAs have been found for canine mammary cancer and human breast cancer. On account of this, large-scale profiling of microRNA expression in canine mammary cancer seems to be important for both dogs and humans. METHODS: Expression profiles of 317 microRNAs in 146 canine mammary tumours of different histological type, malignancy grade and clinical history (presence/absence of metastases) and in 25 control samples were evaluated...
November 7, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29115608/microrna%C3%A2-27a-promotes-tumorigenesis-via-targeting-akt-in-triple-negative-breast-cancer
#18
Jing Wu, Zhihui Sun, Huijie Sun, Yanhua Li
Altered microRNA (miRNA/miR) expression regulates tumor development and progression in triple‑negative breast cancer (TNBC). The present study examined the effect of miR‑27a on proliferation, migration and invasion of TNBC cells in vitro and in vivo. An MTT assay was performed to examine the proliferation of MDA‑MB‑231 and MDA‑MB‑468 breast cancer cells with either overexpression of miR‑27a or downregulation of miR‑27a, in the presence or absence of radiation. The migratory and invasive abilities of MDA‑MB‑231 and MDA‑MB‑468 breast cancer cells were assessed by Transwell migration and Matrigel invasion assays...
October 26, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29115451/presence-of-the-minor-allele-of-microrna205-rs3842530-polymorphism-increases-18fdg-uptake-in-patients-with-breast-cancer-via-targeting-vegf
#19
Shiying Qu, Tie Wang, Jingwei Huang
MicroRNAs (miRNAs) are regarded as key regulators of gene expression involved in the pathogenesis of various diseases. Numerous single nucleotide polymorphisms (SNPs) in miRNA genes have been found to be associated with human diseases by affecting the processing process of miRNAs. In the present study, patients with breast cancer underwent a PET scan, and the maximum standard uptake value (SUVmax)/partial volume‑corrected standard uptake value (SUVpvc) were determined in each individual. The samples were collected and genotyped for rs3842530...
October 27, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29113237/microrna-10a-suppresses-breast-cancer-progression-via-pi3k-akt-mtor-pathway
#20
Kongliang Ke, Tingting Lou
Previous studies have demonstrated that microRNA-10a (miR-10a) regulates various opposing biological functions in breast cancer. The aim of the present study was to investigate the exact functions of miR-10a in the pathogenesis of breast cancer. miR-10a expression was initially detected in two human breast cancer cell lines, MCF-7 and MDA-MB-231 and a normal human mammary epithelial cell line MCF-10A. The proliferation, migration and apoptosis of breast cancer cells were analyzed using MTT assays, Transwell assays and flow cytometry, respectively, following transfection of MCF-7 and MDA-MB-231 cells with an miR-10a mimic or anti-miR-10a...
November 2017: Oncology Letters
keyword
keyword
49422
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"