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https://www.readbyqxmd.com/read/29782246/precision-medicine-and-radiogenomics-in-breast-cancer-new-approaches-toward-diagnosis-and-treatment
#1
Katja Pinker, Joanne Chin, Amy N Melsaether, Elizabeth A Morris, Linda Moy
Precision medicine is medicine optimized to the genotypic and phenotypic characteristics of an individual and, when present, his or her disease. It has a host of targets, including genes and their transcripts, proteins, and metabolites. Studying precision medicine involves a systems biology approach that integrates mathematical modeling and biology genomics, transcriptomics, proteomics, and metabolomics. Moreover, precision medicine must consider not only the relatively static genetic codes of individuals, but also the dynamic and heterogeneous genetic codes of cancers...
June 2018: Radiology
https://www.readbyqxmd.com/read/29781960/a-peripherally-restricted-cannabinoid-1-receptor-agonist-as-a-novel-analgesic-in-cancer-induced-bone-pain
#2
Hong Zhang, Dominique M Lund, Haley A Ciccone, William D Staatz, Mohab M Ibrahim, Tally M Largent-Milnes, Herbert H Seltzman, Igor Spigelman, Todd W Vanderah
Many malignant cancers, including breast cancer, have a propensity to invade bones, leading to excruciating bone pain. Opioids are the primary analgesics used to alleviate this cancer-induced bone pain (CIBP) but are associated with numerous severe side effects, including enhanced bone degradation, which significantly impairs patients' quality of life. In contrast, agonists activating only peripheral CB1 receptors (CB1Rs) have been shown to effectively alleviate multiple chronic pain conditions with limited side effects, yet no studies have evaluated their role(s) in CIBP...
May 16, 2018: Pain
https://www.readbyqxmd.com/read/29781562/il-6-triggers-the-migration-and-invasion-of-oestrogen-receptor-negative-breast-cancer-cells-via-regulation-of-hippo-pathways
#3
Lingmi Hou, Shaoli Xie, Guanwu Li, Bin Xiong, Yanchun Gao, Xiaobo Zhao, Jiani Hu, Shishan Deng, Jun Jiang
Breast cancer is one of the major challenges for women's health. However, the role and mechanisms of interleukins (ILs) on the progression of breast cancer are not well illustrated. Our present study revealed that the expression of IL-6 and IL-8 was significantly increased in oestrogen receptor negative (ER-) breast cancer cells. Increased expression of IL-6 was observed in 83.9% (26/31) ER- breast cancer tissues as compared with their matched adjacent normal tissues. In vitro studies indicated that IL-6 can significantly promote the migration and invasion of ER- breast cancer cells via increasing the dephosphorylation, nuclear translocation and transcriptional activities of YAP in breast cancer cells...
May 21, 2018: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/29781326/progression-free-survival-with-endocrine-based-therapies-following-progression-on-non-steroidal-aromatase-inhibitor-among-postmenopausal-women-with-hr-her2-metastatic-breast-cancer-a-network-meta-analysis
#4
Rajeev Ayyagari, Derek Tang, Oscar Patterson-Lomba, Zhou Zhou, Jipan Xie, David Chandiwana, Anand A Dalal, Polly Ann Niravath
OBJECTIVE: To quantify the comparative efficacy of currently available endocrine-based therapies (ETs) for postmenopausal women with HR+/HER2- mBC after NSAI progression. DESIGN: network meta-analysis (NMA) Methods: Randomized clinical trials of ETs for HR+/HER2- mBC were identified via a systematic literature review using Medline, EMBASE, Cochrane Library, and key conference proceedings. All trials met the following inclusion criteria: 1) included women with HR+/HER2- mBC, 2) previous treatment with ETs or chemotherapy as first-line therapy, 3) treatment with ET as monotherapy or in combination with targeted therapy, 4) PFS was reported, and 5) published in 2007 (when HER2 testing became standardized) or later...
May 21, 2018: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/29780974/metformin-targets-glucose-metabolism-in-triple-negative-breast-cancer
#5
R S Wahdan-Alaswad, S M Edgerton, H S Salem, A D Thor
Metformin is the most widely administered anti-diabetic agent worldwide. In patients receiving metformin for metabolic syndrome or diabetes, it reduces the incidence and improves the survival of breast cancer (BC) patients. We have previously shown that metformin is particularly potent against triple negative breast cancer (TNBC), with a reduction of proliferation, oncogenicity and motility, inhibition of pro-oncogenic signaling pathways and induction of apoptosis. These BCs are well recognized to be highly dependent on glucose/glucosamine (metabolized through anaerobic glycolysis) and lipids, which are metabolized for the production of energy and cellular building blocks to sustain a high rate of proliferation...
2018: Journal of Oncology Translational Research
https://www.readbyqxmd.com/read/29780878/microfluidics-in-malignant-glioma-research-and-precision-medicine
#6
Meghan Logun, Wujun Zhao, Leidong Mao, Lohitash Karumbaiah
Glioblastoma multiforme (GBM) is an aggressive form of brain cancer that has no effective treatments and a prognosis of only 12-15 months. Microfluidic technologies deliver microscale control of fluids and cells, and have aided cancer therapy as point-of-care devices for the diagnosis of breast and prostate cancers. However, a few microfluidic devices are developed to study malignant glioma. The ability of these platforms to accurately replicate the complex microenvironmental and extracellular conditions prevailing in the brain and facilitate the measurement of biological phenomena with high resolution and in a high-throughput manner could prove useful for studying glioma progression...
May 2018: Advanced Biosystems
https://www.readbyqxmd.com/read/29780747/precision-medicine-in-hormone-receptor-positive-breast-cancer
#7
REVIEW
Azadeh Nasrazadani, Roby A Thomas, Steffi Oesterreich, Adrian V Lee
In recent decades, breast cancer has become largely manageable due to successes with hormone receptor targeting. Hormone receptor-positive tumors have favorable outcomes in comparison to estrogen receptor (ESR1, ER)/progesterone receptor-negative tumors given the targetable nature of these tumors, as well as their inherently less aggressive character. Nonetheless, treatment resistance is frequently encountered due to a variety of mechanisms, including ESR1 mutations and loss of ER expression. A new era of precision medicine utilizes a range of methodologies to allow real-time analysis of individual genomic signatures in metastases and liquid biopsies with the goal of finding clinically actionable targets...
2018: Frontiers in Oncology
https://www.readbyqxmd.com/read/29780443/separase-inhibitor-sepin-1-inhibits-foxm1-expression-and-breast-cancer-cell-growth
#8
Nenggang Zhang, Debananda Pati
Sepin-1, a potent non-competitive inhibitor of separase, inhibits cancer cell growth, but the mechanisms of Sepin-1-mediated growth inhibition are not fully understood. Here we report that Sepin-1 hinders growth of breast cancer cells, cell migration, and wound healing. Inhibition of cell growth induced by Sepin-1 in vitro doesn't appear to be through apoptosis but rather due to growth inhibition. Following Sepin-1 treatment caspases 3 and 7 are not activated and Poly (ADP-ribose) polymerase (Parp) is not cleaved...
2018: Journal of Cancer Science & Therapy
https://www.readbyqxmd.com/read/29780354/targeting-the-metastatic-bone-microenvironment-by-micrornas
#9
REVIEW
Marie-Therese Haider, Hanna Taipaleenmäki
Bone metastases are a common and devastating feature of late-stage breast cancer. Metastatic bone disease is a consequence of disturbed bone remodeling due to pathological interactions between cancer cells and the bone microenvironment (BME). In the BME, breast cancer cells severely alter the balanced bone formation and bone resorption driven by osteoblasts and osteoclasts. The complex cellular cross talk in the BME is governed by secreted molecules, signaling pathways and epigenetic cues including non-coding RNAs...
2018: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29779034/ras-gtpase-activating-like-protein-iqgap1-iqgap1-promotes-breast-cancer-proliferation-and-invasion-and-correlates-with-poor-clinical-outcomes
#10
Fanye Zeng, Weihua Jiang, Wei Zhao, Yuxiang Fan, Yanhua Zhu, Hongliang Zhang
BACKGROUND Breast cancer is one of the most common female cancers in the world. As a key integrator of cell signaling pathways, IQGAP1 contributes to the development and progression of several cancers. However, the exact effects and molecular mechanisms of IQGAP1 in breast cancer progression remain poorly understood. MATERIAL AND METHODS In the present study, IQGAP1 expression was measured in 96 paired breast cancer samples and the corresponding adjacent non-cancerous tissues by immunohistochemistry and quantitative polymerase chain reaction...
May 20, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29778888/rapid-phenotyping-of-cancer-stem-cells-using-multichannel-nanosensor-arrays
#11
Yingying Geng, Hira L Goel, Ngoc B Le, Tatsuyuki Yoshii, Rubul Mout, Gulen Y Tonga, John J Amante, Arthur M Mercurio, Vincent M Rotello
Cancer stem cells (CSCs) contribute to multidrug resistance, tumor recurrence and metastasis, making them prime therapeutic targets. Their ability to differentiate and lose stem cell properties makes them challenging to study. Currently, there is no simple assay that can capture and trace the dynamic phenotypic changes on the CSC surface. Here, we report rapid discrimination of breast CSCs from non-CSCs using a nanoparticle-fluorescent-protein based sensor. This nanosensor was employed to discriminate CSCs from non-CSCs, as well CSCs that had differentiated in vitro in two breast cancer models...
May 17, 2018: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/29778754/exosome-mediated-mir-222-transferring-an-insight-into-nf-%C3%AE%C2%BAb-mediated-breast-cancer-metastasis
#12
Jiaji Ding, Zhi Xu, Yanyan Zhang, Chunli Tan, Weizi Hu, Mei Wang, Yong Xu, Jinhai Tang
The subtypes of distant-organ metastasis led to treatment failure and poor prognosis are major obstacles in the management of patients with advanced breast cancer (BCa). Emerging evidences demonstrated that exosomes act as mediators for intercellular communication between various types of cells in the local tumor microenvironment. The present study aims to investigate whether BCa-derived exosomes are capable of cell-cell transferring miR-222 for BCa metastatic progression. Results showed that exosomal miR-222 is highly expressed in BCa patients with lymphatic metastasis...
May 17, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29777999/targeted-delivery-of-cd44s-sirna-by-scfv-overcomes-de-novo-resistance-to-cetuximab-in-triple-negative-breast-cancer
#13
Wenyan Fu, Hefen Sun, Yang Zhao, Mengting Chen, Lipeng Yang, Xueli Yang, Wei Jin
The overexpression of EGFR often occurs in TNBC, and the anti-EGFR receptor antibody cetuximab is used widely to treat metastatic cancer in the clinic. However, EGFR-targeted therapies have been developed for TNBC without clinical success. In this study, we show that impaired EGFR degradation is crucial for resistance to cetuximab, which depends on the cell surface molecule CD44. To further investigate the role of CD44 in EGFR signaling and its treatment potential, we developed a targeting fusion protein composed of an anti-EGFR scFv generated from cetuximab and truncated protamine, called Ce-tP...
May 16, 2018: Molecular Immunology
https://www.readbyqxmd.com/read/29777908/breast-cancer-in-the-gcc-countries-a-focus-on-brca1-2-and-non-brca1-2-genes
#14
REVIEW
Sumaya Rahman, Hatem Zayed
The GCC is an economic alliance of six Arab countries, including Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, and United Arab Emirates (UAE). The rate of endogamous marriage among the GCC countries is approaching 100%, with very high consanguineous marriage rates. Although breast cancer is on the rise in the GCC countries, there are dearth of studies reporting on the genetic epidemiology of breast cancer. In this study, we investigated the frequency of BRCA1/2 and non-BRCA1/2 mutations in breast cancer patients in the GCC countries...
May 16, 2018: Gene
https://www.readbyqxmd.com/read/29777796/identification-of-a-sodium-pump-na-k-atpase-%C3%AE-1-targeted-peptide-for-pet-imaging-of-breast-cancer
#15
Qian Wang, Shi-Bing Li, Yi-Ying Zhao, Da-Nian Dai, Hui Du, Yan-Zhu Lin, Jia-Cong Ye, Jing Zhao, Wei Xiao, Yan Mei, Yi-Tai Xiao, Shi-Chu Liu, Yan Li, Yun-Fei Xia, Er-Wei Song, Gang-Hua Tang, Wei-Guang Zhang, Zhi-Jiang Li, Xiao-Bin Zheng, De-Hai Cao, Man-Zhi Li, Qian Zhong, Zhong-Ping Chen, Chao-Nan Qian, Wei Fan, Guo-Kai Feng, Mu-Sheng Zeng
The sodium pump Na+ /K+ ATPase a1 subunit(NKA a1), an attractive cancer-related biomarker and therapeutic target, is closely related to the development and progression of several cancers including breast cancer. Currently, a NKA a1 inhibitor, UNBS1450, has already evidenced its great therapeutic potential in personalized cancer treatment. The ability of non-invasive imaging of NKA a1 expression would be useful for selecting cancer patients who may benefit from this drug. Here, we identified an S3 peptide that is specifically homed to breast cancer by phage display...
May 16, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29777792/human-cancer-cells-suppress-behaviors-of-endothelial-progenitor-cells-through-mir-21-targeting-il6r
#16
Wenbin Wang, Xiao Yuan, Aman Xu, Xingyang Zhu, Yanqing Zhan, Shuanhu Wang, Mulin Liu
Deep vein thrombosis (DVT) is a severe clinical process and has a high rate of fatality. Cancer patients have a high incidence rate of venous thrombosis complication and increase the mortality of cancer patients for 2-8 times. The mechanisms involved in human cancers and venous thrombosis remains unclear. In this study, we determined miR-21 expressed higher in human breast cancer, colon cancer and hepatocellular cancer tissues compared with normal tissues and expressed higher in exosomes of breast cancer and hepatocellular cancer cell lines compared with normal cells...
May 16, 2018: Microvascular Research
https://www.readbyqxmd.com/read/29777785/psmd2-regulates-breast-cancer-cell-proliferation-and-cell-cycle-progression-by-modulating-p21-and-p27-proteasomal-degradation
#17
Yunhai Li, Jing Huang, Beilei Zeng, Dejuan Yang, Jiazheng Sun, Xuedong Yin, Mengqi Lu, Zhu Qiu, Weiyan Peng, Tingxiu Xiang, Hongzhong Li, Guosheng Ren
Alterations in the ubiquitin-proteasome system (UPS) and UPS-associated proteins have been implicated in the development of many human malignancies. In this study, we investigated the expression profiles of 797 UPS-related genes using HiSeq data from The Cancer Genome Atlas and identified that PSMD2 was markedly upregulated in breast cancer. High PSMD2 expression was significantly correlated with poor prognosis. Gene set enrichment analysis revealed that transcriptome signatures involving proliferation, cell cycle, and apoptosis were critically enriched in specimens with elevated PSMD2...
May 16, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29777742/a-functional-glycoproteomics-approach-identifies-cd13-as-a-novel-e-selectin-ligand-in-breast-cancer
#18
M A Carrascal, M Silva, J A Ferreira, R Azevedo, D Ferreira, A M N Silva, D Ligeiro, L L Santos, R Sackstein, P A Videira
BACKGROUND: The glycan moieties sialyl-Lewis-X and/or -A (sLeX/A ) are the primary ligands for E-selectin, regulating subsequent tumor cell extravasation into distant organs. However, the nature of the glycoprotein scaffolds displaying these glycans in breast cancer remains unclear and constitutes the focus of the present investigation. METHODS: We isolated glycoproteins that bind E-selectin from the CF1_T breast cancer cell line, derived from a patient with ductal carcinoma...
May 16, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29777630/microrna-493-is-a-prognostic-factor-in-triple-negative-breast-cancer
#19
Ling Yao, Yirong Liu, Zhigang Cao, Junjing Li, Yanni Huang, Xin Hu, Zhiming Shao
Breast cancer is one of the most common malignant diseases in women, in which triple-negative breast cancer (TNBC) exhibits higher aggressiveness and recurrence rates, while there are no effective targets or tailored treatments for patients with this subtype. Thus, finding effective prognostic markers for TNBC might help clinicians in their ability to care for their patients. We used tissue microarrays (TMAs) to detect miR-493 expression in breast cancer samples. A miRCURY LNATM detection probe specific for miR-493 was used in in situ hybridization assays...
May 19, 2018: Cancer Science
https://www.readbyqxmd.com/read/29777274/the-natural-agent-4-vinylphenol-targets-metastasis-and-stemness-features-in-breast-cancer-stem-like-cells
#20
Hoi-Wing Leung, Chun-Hay Ko, Grace Gar-Lee Yue, Ingrid Herr, Clara Bik-San Lau
BACKGROUND AND PURPOSE: Cancer stem-like cells (CSC) are regarded as the source of tumour origins, metastasis and drug resistance, and limits current treatment regimens. Previously, we reported the first study of the anti-angiogenic and anti-tumour activities of 4-vinylphenol. To further examine the therapeutic role of 4-vinylphenol, the inhibitory effects of 4-vinylphenol on cancer stemness, drug resistance and metastasis in breast cancer were investigated in the present study. STUDY DESIGN AND METHODS: We enriched parental MDA-MB-231 cells with CSCs in serum-free medium to give spheroids...
May 18, 2018: Cancer Chemotherapy and Pharmacology
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