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Breast cancer progression

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https://www.readbyqxmd.com/read/28109133/the-prognostic-and-therapeutic-application-of-micrornas-in-breast-cancer-tissue-and-circulating-micrornas
#1
REVIEW
Afsane Bahrami, Seyed Amir Aledavoud, Kazem Anvari, Seyed Mahdi Hassanian, Mina Maftouh, Ali Yaghobzade, Omid Salarzaee, Soodabeh ShahidSales, Amir Avan
Breast cancer is the second most common malignancy diagnosed in women, supporting the need for identification of novel prognostic and diagnostic biomarkers. Recently, microRNAs have emerged as molecular regulators that can have key roles in pathogenesis and progression of different malignancies, including breast cancer. Micro-RNAs can be circulated in body fluid, suggesting their values as non-invasive marker. There is growing body of evidence showing the aberrant activation of some known circulating miRNAs, e...
January 21, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28108861/in-vivo-magnetic-resonance-imaging-investigating-the-development-of-experimental-brain-metastases-due-to-triple-negative-breast-cancer
#2
Amanda M Hamilton, Paula J Foster
Triple negative breast cancer (TNBC), when associated with poor outcome, is aggressive in nature with a high incidence of brain metastasis and the shortest median overall patient survival after brain metastasis development compared to all other breast cancer subtypes. As therapies that control primary cancer and extracranial metastatic sites improve, the incidence of brain metastases is increasing and the management of patients with breast cancer brain metastases continues to be a significant clinical challenge...
January 21, 2017: Clinical & Experimental Metastasis
https://www.readbyqxmd.com/read/28108658/computational-approach-for-deriving-cancer-progression-roadmaps-from-static-sample-data
#3
Yijun Sun, Jin Yao, Le Yang, Runpu Chen, Norma J Nowak, Steve Goodison
As with any biological process, cancer development is inherently dynamic. While major efforts continue to catalog the genomic events associated with human cancer, it remains difficult to interpret and extrapolate the accumulating data to provide insights into the dynamic aspects of the disease. Here, we present a computational strategy that enables the construction of a cancer progression model using static tumor sample data. The developed approach overcame many technical limitations of existing methods. Application of the approach to breast cancer data revealed a linear, branching model with two distinct trajectories for malignant progression...
January 20, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28108623/tumor-induced-stromal-stat1-accelerates-breast-cancer-via-deregulating-tissue-homeostasis
#4
Victoria R Zellmer, Patricia M Schnepp, Sarah L Fracci, Xuejuan Tan, Erin N Howe, Siyuan Zhang
: The tumor microenvironment (TME) is a dynamic tissue space in which the tumor exists, plays a significant role in tumor initiation, and is a key contributor in cancer progression; however, little is known about tumor-induced changes in the adjacent tissue stroma. Herein, tumor-induced changes in the TME were explored at the morphological and molecular level to further understand cancer progression. Tumor-adjacent mammary glands (TAGs) displayed altered branching morphology, expansion of myofibroblasts, and increased mammosphere formation, broadly suggesting a tumor-induced field effect...
January 20, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28108315/essential-role-of-notch4-stat3-signaling-in-epithelial-mesenchymal-transition-of-tamoxifen-resistant-human-breast-cancer
#5
Quyen Thu Bui, Ji Hye Im, Sung Baek Jeong, Young-Mi Kim, Sung Chul Lim, Bumseok Kim, Keon Wook Kang
We previously demonstrated that tamoxifen (TAM)-resistant human breast cancer (TAMR-MCF-7) cells showed increased expression of mesenchymal marker proteins compared to the parent MCF-7 cells. Notch is functionally important in the promotion of epithelial-mesenchymal transition (EMT) during both development and tumor progression. Notch1 and Notch4 have been reported as prognostic markers in human breast cancer. Here, we indicated that Notch4, but not Notch1, plays a critical role in the regulation of EMT signaling in TAMR-MCF-7 cells...
January 17, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28108260/triple-negative-metastatic-breast-cancer-is-dependent-on-sphks-s1p-signaling-for-growth-and-survival
#6
Aparna Maiti, Kazuaki Takabe, Nitai C Hait
About 40,000 American women die from metastatic breast cancer each year despite advancements in treatment. Approximately, 15% of breast cancers are triple-negative for estrogen receptor, progesterone receptor, and HER2. Triple-negative cancer is characterized by more aggressive, harder to treat with conventional approaches and having a greater possibility of recurrence. Sphingosine-1-phosphate (S1P) is a bioactive sphingolipid signaling mediator has emerged as a key regulatory molecule in breast cancer progression...
January 17, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28106540/detection-of-human-breast-cancer-cells-using-a-2-deoxy-d-glucose-functionalized-superparamagnetic-iron-oxide-nanoparticles
#7
Xiu-Hong Shan, Peng Wang, Fei Xiong, Hao-Yue Lu, Hui Hu
BACKGROUND: Breast cancer is one of the most common type of female cancer worldwide and represents 14% of cancer-related deaths in women. Early detection is the most important factor for treatment and prognosis of breast cancer. In most countries, the women are currently screened with mammography only. Even though there has been considerable progress in the detection, surgical therapy, hormonal and target therapy of breast cancer, there are about ∼ 3500 000 women who die from breast cancer each year...
January 13, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/28105212/emt-influences-the-expression-of-ck19-in-pleural-effusion-derived-lung-cancer-cells-and-their-invasion-and-metastasis
#8
Dongyun Huang, Wenjing Xu, Xingxiang Xu, Xudong Zhang, Rui Zhou, Ping Chen
Lung cancer is the most common cancer after breast and colon cancer, with high rates of mortality, worldwide. There are two main types of lung cancer, small cell lung carcinoma (SCLC), which accounts for approximately 20% of all lung cancer cases and non-SCLC, which accounts for almost 80% of lung cancer cases. Although lung cancer is one of the most aggressive types of cancer, progress in achieving better clinical outcomes has been gradual. Even though a number of markers have been suggested for the diagnosis of lung cancer and monitoring of disease progression, there is no clear way of assessing the invasion, epithelial-mesenchymal transition (EMT) and metastasizing capability of the primary tumor cells...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28105194/biomarkers-for-emt-and-met-in-breast-cancer-an-update
#9
Fei Liu, Li-Na Gu, Bao-En Shan, Cui-Zhi Geng, Mei-Xiang Sang
Metastasis and recurrence are the leading cause of mortality due to breast cancer, but the underlying mechanisms are still poorly understood. Understanding the breast cancer metastasis mechanism is important for early diagnosis and treatment of breast cancer. The seeding and growth of breast cancer cells at sites distinct from the primary tumor is a complex and multistage process. Recently, it has been reported that the epithelial-mesenchymal transition (EMT) and the mesenchymal-epithelial transition (MET) are the main mechanisms for breast cancer metastasis...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28105172/her2-gene-amplification-in-patients-with-prostate-cancer-evaluating-a-cish-based-method
#10
Nazanin Sharifi, Arash Salmaninejad, Samira Ferdosi, Abolfazl Nesaei Bajestani, Malihe Khaleghiyan, Mehrdad Asghari Estiar, Mansour Jamali, Mohammad Reza Nowroozi, Abbas Shakoori
Prostate cancer (PCa) is one of the most widespread malignancies in the world. The role of the human epidermal growth factor receptor 2 (HER2) in the pathogenesis and progression of human PCa remains poorly understood. In contradiction with breast cancer, studies on HER2 overexpression and gene amplification in PCa have produced varying results, although the HER2 oncogene has been implicated in the biology of numerous tumor types, and serves as a prognostic marker and therapeutic target in breast cancer. Technical challenges are considered the main reasons for data discrepancies...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28105162/ubiquitin-specific-protease-21-upregulation-in-breast-cancer-promotes-cell-tumorigenic-capability-and-is-associated-with-the-nod-like-receptor-signaling-pathway
#11
Liang Peng, Yi Hu, Demeng Chen, Ruixia Linghu, Yingzhe Wang, Xiaoxue Kou, Junlan Yang, Shunchang Jiao
Ubiquitination and deubiquitination have emerged as critical regulators in cancer. In the present study, the expression pattern of 50 ubiquitin-specific proteases (USPs) was summarized in breast cancer using a bioinformatics approach, and USP21 was identified as the most altered gene in breast cancer. In particular, expression of USP21 in triple negative breast cancer (TNBC) cell lines was greater compared with other subtypes of breast cancer. Knockdown of USP21 in TNBC cells inhibited cell proliferation, migration and invasion...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28104744/spect-ct-imaging-of-the-novel-her2-targeted-peptide-probe-99mtc-hynic-h6f-in-breast-cancer-mouse-models
#12
Liqiang Li, Yue Wu, Zihua Wang, Bing Jia, Zhiyuan Hu, Chengyan Dong, Fan Wang
OBJECTIVES: Overexpression of human epidermal growth factor receptor 2 (HER2) plays important roles in tumorigenesis and tumor progression in breast cancer. Nuclear imaging of HER2 expression in tumors might detect all HER2-positive tumors throughout the body and guide HER2-targeted therapies for patients. We therefore aimed to develop a HER2-targeted peptide probe for breast cancer imaging. A novel single-photon emission computed tomography (SPECT) imaging probe, (99m)Tc-HYNIC-H6F, was prepared and then evaluated in breast cancer animal models...
January 19, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28104566/targeting-epidermal-growth-factor-receptor-in-triple-negative-breast-cancer-new-discoveries-and-practical-insights-for-drug-development
#13
REVIEW
Ricardo Costa, Ami N Shah, Cesar A Santa-Maria, Marcelo R Cruz, Devalingam Mahalingam, Benedito A Carneiro, Young Kwang Chae, Massimo Cristofanilli, William J Gradishar, Francis J Giles
Triple negative breast cancer (TNBC) accounts for 10-20% of cases in breast cancer. Despite recent advances in the treatment of hormonal receptor+ and HER2+ breast cancers, there are no targeted therapies available for TNBC. Evidence supports that most patients with TNBC express the transmembrane Epidermal Growth Factor Receptor (EGFR). However, early phase clinical trials failed to demonstrate significant activity of EGFR-targeted monoclonal antibodies and/or tyrosine kinase inhibitors. Here, we review the recent discoveries related to the underlying biology of the EGFR pathway in TNBC, clinical progress to date and suggest rational future approaches for investigational therapies in TNBC...
January 5, 2017: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/28104391/na-h-exchanger-mediated-hydrogen-ion-extrusion-as-a-carcinogenic-signal-in-triple-negative-breast-cancer-etiopathogenesis-and-prospects-for-its-inhibition-in-therapeutics
#14
REVIEW
Schammim Ray Amith, Larry Fliegel
Breast cancer is the leading cause of cancer-related death in women in Europe and North America, and metastasis is the primary cause of fatality in patients with breast cancer. While some breast cancers are quite treatable, the triple-negative breast cancers are more metastatic and resistant to chemotherapy. There is clearly an urgent need for better treatments for this form of the disease. Breast cancer is characterized by genetically complex intra-tumour heterogeneity, particularly within the triple-negative clinical subtype...
January 16, 2017: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/28103946/epcr-promotes-breast-cancer-progression-by-altering-spock1-testican-1-mediated-3d-growth
#15
Naiara Perurena, Carolina Zandueta, Susana Martínez-Canarias, Haritz Moreno, Silvestre Vicent, Ana S Almeida, Elisabet Guruceaga, Roger R Gomis, Marta Santisteban, Mikala Egeblad, José Hermida, Fernando Lecanda
BACKGROUND: Activated protein C/endothelial protein C receptor (APC/EPCR) axis is physiologically involved in anticoagulant and cytoprotective activities in endothelial cells. Emerging evidence indicates that EPCR also plays a role in breast stemness and human tumorigenesis. Yet, its contribution to breast cancer progression and metastasis has not been elucidated. METHODS: Transcriptomic status of EPCR was examined in a cohort of 286 breast cancer patients. Cell growth kinetics was evaluated in control and EPCR and SPARC/osteonectin, Cwcv, and kazal-like domains proteoglycan (SPOCK1/testican 1) silenced breast cancer cells in 2D, 3D, and in co-culture conditions...
January 19, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28103936/elevated-collagen-i-augments-tumor-progressive-signals-intravasation-and-metastasis-of-prolactin-induced-estrogen-receptor-alpha-positive-mammary-tumor-cells
#16
Craig E Barcus, Kathleen A O'Leary, Jennifer L Brockman, Debra E Rugowski, Yuming Liu, Nancy Garcia, Menggang Yu, Patricia J Keely, Kevin W Eliceiri, Linda A Schuler
BACKGROUND: The development and progression of estrogen receptor alpha positive (ERα+) breast cancer has been linked epidemiologically to prolactin. However, activation of the canonical mediator of prolactin, STAT5, is associated with more differentiated cancers and better prognoses. We have reported that density/stiffness of the extracellular matrix potently modulates the repertoire of prolactin signals in human ERα + breast cancer cells in vitro: stiff matrices shift the balance from the Janus kinase (JAK)2/STAT5 cascade toward pro-tumor progressive extracellular regulated kinase (ERK)1/2 signals, driving invasion...
January 19, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/28103884/aryl-hydrocarbon-receptor-cytochrome-p450%C3%A2-1a1-pathway-mediates-breast-cancer-stem-cells-expansion-through-pten-inhibition-and-%C3%AE-catenin-and-akt-activation
#17
Abdullah Al-Dhfyan, Ali Alhoshani, Hesham M Korashy
BACKGROUND: Breast cancer stem cells (CSCs) are small sub-type of the whole cancer cells that drive tumor initiation, progression and metastasis. Recent studies have demonstrated a role for the aryl hydrocarbon receptor (AhR)/cytochrome P4501A1 pathway in CSCs expansion. However, the exact molecular mechanisms remain unclear. METHODS: The current study was designed to a) determine the effect of AhR activation and inhibition on breast CSCs development, maintenance, self-renewal, and chemoresistance at the in vitro and in vivo levels and b) explore the role of β-Catenin, PI3K/Akt, and PTEN signaling pathways...
January 19, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28103111/oxidative-stress-and-carcinogenesis-potential-of-phytochemicals-in-breast-cancer-therapy
#18
Gilead Ebiegberi Forcados, Dorcas Bolanle James, Abdullahi Balarabe Sallau, Aliyu Muhammad, Peace Mabeta
Breast cancer remains a burden in both developed and developing countries, with higher mortality in developing countries. Attempts to eradicate cancer have not been successful despite the progress made in the development of more novel chemotherapeutic drugs. Reactive-oxygen-species-mediated oxidative stress is known to play a role in breast cancer pathogenesis via genetic and epigenetic modifications, resulting in uncontrolled cell proliferation. Phytochemicals could provide leads for the development of alternative therapeutic agents due to their antioxidant activity, as well as their ability to induce apoptosis in cancer cells...
January 19, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28102883/exploring-prognostic-factors-for-her2-positive-metastatic-breast-cancer-a-retrospective-cohort-study-in-a-major-swiss-hospital
#19
Lilian Bringolf, Bernhard Pestalozzi, Daniel Fink, Konstantin Dedes
BACKGROUND: Trastuzumab (Herceptin®, Roche) has significantly improved the prognosis of patients with HER2-positive metastatic breast cancer. Some patients remain in remission for many years. However, there are no prognostic markers associated with long-term survival. This study aimed to analyse treatment patterns of HER2-positive metastatic breast cancer at a single institution and explore prognostic factors for long-term survival after HER2-targeted treatment. PATIENTS AND METHODS: This was a retrospective cohort study of all patients with HER2-positive metastatic breast cancer receiving first-line treatment with HER2-targeted therapy between 2004 and 2014 at the University Hospital of Zurich (n = 81)...
January 19, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/28102844/human-adipose-stem-cell-differentiation-is-highly-affected-by-cancer-cells-both-in-vitro-and-in-vivo-implication-for-autologous-fat-grafting
#20
Francesca Paino, Marcella La Noce, Diego Di Nucci, Giovanni Francesco Nicoletti, Rosa Salzillo, Alfredo De Rosa, Giuseppe Andrea Ferraro, Gianpaolo Papaccio, Vincenzo Desiderio, Virginia Tirino
Recent studies showed that mesenchymal stem cells derived from adipose tissue can promote tumour progression, raising some concerns regarding their use in regenerative medicine. In this context, we co-cultured either SAOS2 osteosarcoma or MCF7 breast cancer cells with human adipose stem cells (hASCs), in order to evaluate potential effects of cancer cells on hASCs differentiation, in vitro and in vivo. In this study we observed that both SAOS2 and MCF7 cell lines induced an increase in hASCs proliferation, compared to hASCs alone, but, surprisingly, neither changes in the expression of CD90, CD29, CD324 and vimentin, nor variations in the Twist and Slug mRNAs were detectable...
January 19, 2017: Cell Death & Disease
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