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breast cancer bone metastases

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https://www.readbyqxmd.com/read/28454088/overexpression-of-a-functional-calcium-sensing-receptor-dramatically-increases-osteolytic-potential-of-mda-mb-231-cells-in-a-mouse-model-of-bone-metastasis-through-epiregulin-mediated-osteoprotegerin-downregulation
#1
Boudot Cédric, Hénaut Lucie, Thiem Ursula, Geraci Sandra, Galante Mariangela, Saldanha Paulo, Saidak Zuzana, Six Isabelle, Clézardin Philippe, Kamel Said, Mentaverri Romuald
INTRODUCTION AND AIMS: Osteolytic bone metastases are observed in advanced cases of breast cancer. In vitro data suggest that the activity of the calcium-sensing receptor (CaSR) expressed by metastatic cells could potentiate their osteolytic potential. This study aimed to demonstrate in vivo the involvement of the CaSR in breast cancer cells osteolytic potential and to identify potential targets linked to CaSR activity. METHODS AND RESULTS: MDA-MB-231 stably transfected with plasmids containing either a full-length wild-type CaSR (CaSR-WT), or a functionally inactive dominant negative mutant (CaSR-DN) or an empty vector (EV) were intratibially injected into Balb/c-Nude mice...
April 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28442512/the-clinical-value-of-hepcidin-in-breast-cancer-and-its-bone-metastasis
#2
Xiaonan Shao, Fei Cao, Min Tao
PURPOSE: We explored the role of hepcidin in the progression of breast cancer. METHODS: A retrospective analysis of 25 breast cancer patients with bone metastases, 30 breast cancer patients without bone metastases, and 30 patients with breast hyperplasia was conducted to compare the differences in Hb, hepcidin, BMP6, IL-6, and sTfR among the three groups and explore the correlation of Hepcidin with BMP6 IL-6, Hb and sTfR. In addition, ROC analysis was performed to evaluate the diagnostic value of hepcidin, BMP6 and IL-6 in breast cancer and its bone metastasis, while multivariate Logistic regression analysis was conducted to compare various indicators in breast cancer and its bone metastasis...
March 2017: Annals of Clinical and Laboratory Science
https://www.readbyqxmd.com/read/28432455/dual-activation-of-toll-like-receptors-7-and-9-impairs-the-efficacy-of-antitumor-vaccines-in-murine-models-of-metastatic-breast-cancer
#3
Mariela A Moreno Ayala, María Florencia Gottardo, María Soledad Gori, Alejandro Javier Nicola Candia, Carla Caruso, Andrea De Laurentiis, Mercedes Imsen, Slobodanka Klein, Elisa Bal de Kier Joffé, Gabriela Salamone, Maria G Castro, Adriana Seilicovich, Marianela Candolfi
PURPOSE: Since combination of Toll-like receptor (TLR) ligands could boost antitumor immunity, we evaluated the efficacy of dendritic cell (DC) vaccines upon dual activation of TLR9 and TLR7 in breast cancer models. METHODS: DCs were generated from mouse bone marrow or peripheral blood from healthy human donors and stimulated with CpG1826 (mouse TLR9 agonist), CpG2006 or IMT504 (human TLR9 agonists) and R848 (TLR7 agonist). Efficacy of antitumor vaccines was evaluated in BALB/c mice bearing metastatic mammary adenocarcinomas...
April 21, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28429794/bone-in-culture-array-as-a-platform-to-model-early-stage-bone-metastases-and-discover-anti-metastasis-therapies
#4
Hai Wang, Lin Tian, Amit Goldstein, Jun Liu, Hin-Ching Lo, Kuanwei Sheng, Thomas Welte, Stephen T C Wong, Zbigniew Gugala, Fabio Stossi, Chenghang Zong, Zonghai Li, Michael A Mancini, Xiang H-F Zhang
The majority of breast cancer models for drug discovery are based on orthotopic or subcutaneous tumours. Therapeutic responses of metastases, especially microscopic metastases, are likely to differ from these tumours due to distinct cancer-microenvironment crosstalk in distant organs. Here, to recapitulate such differences, we established an ex vivo bone metastasis model, termed bone-in-culture array or BICA, by fragmenting mouse bones preloaded with breast cancer cells via intra-iliac artery injection. Cancer cells in BICA maintain features of in vivo bone micrometastases regarding the microenvironmental niche, gene expression profile, metastatic growth kinetics and therapeutic responses...
April 21, 2017: Nature Communications
https://www.readbyqxmd.com/read/28429102/improved-systemic-treatment-for-early-breast-cancer-improves-cure-rates-modifies-metastatic-pattern-and-shortens-post-metastatic-survival-35-year-results-from-the-munich-cancer-registry
#5
Dieter Hölzel, Renate Eckel, Ingo Bauerfeind, Bernd Baier, Thomas Beck, Michael Braun, Johannes Ettl, Ulrich Hamann, Marion Kiechle, Sven Mahner, Christian Schindlbeck, Johann de Waal, Nadia Harbeck, Jutta Engel
PURPOSE: Systemic therapies (ATHs) in early breast cancer have improved the survival of breast cancer (BC) patients in recent decades. The magnitude of the changes in overall, metastasis-free (MFS) and post-metastatic (PMS) survival and in the metastasis (MET) pattern will be described. PATIENT AND METHODS: We analysed 60,227 patients with a diagnosis of T-N-M0 BC between 1978 and 2013 and 11,983 patients with metastases (MET) in the Munich Cancer Registry. Patients will be divided into four time periods to identify relationships between BC and METs...
April 20, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28428107/clinicopathologic-factors-associated-with-survival-in-patients-with-breast-cancer-brain-metastasis
#6
Rong Li, Kui Zhang, Gene P Siegal, Shi Wei
Brain metastasis from breast cancer generally represents a catastrophic event yet demonstrates substantial biological heterogeneity. There have been limited studies solely focusing on the prognosis of patients with such metastasis. In this study, we carried out a comprehensive analysis in 108 consecutive patients with breast cancer brain metastases between 1997 and 2012 to further define clinicopathologic factors associated with early onset of brain metastasis and survival outcomes after development of them...
April 17, 2017: Human Pathology
https://www.readbyqxmd.com/read/28427196/breast-cancer-subtypes-predict-the-preferential-site-of-distant-metastases-a-seer-based-study
#7
Qi Wu, Juanjuan Li, Shan Zhu, Juan Wu, Chuang Chen, Qian Liu, Wen Wei, Yimin Zhang, Shengrong Sun
BACKGROUND AND AIMS: This study aimed to access possible relationships between breast cancer subtypes and sites of distant metastasis in breast cancer. RESULTS: A total of 243,896 patients, including 226,451 cases in control groups were identified. Bone metastasis was found in 8848 cases, compared with 1,000 brain metastasis cases, 3434 liver metastasis cases and 4167 lung metastasis cases. Patients with all subtypes were most prone to bone metastases, the incidence of bone metastasis in HR+/HER2+ subtype was up to 5...
March 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28415595/18f-fluoride-pet-ct-tumor-burden-quantification-predicts-survival-in-breast-cancer
#8
Ana E Brito, Allan Santos, André Deeke Sasse, Cesar Cabello, Paulo Oliveira, Camila Mosci, Tiago Souza, Barbara Amorim, Mariana Lima, Celso D Ramos, Elba Etchebehere
PURPOSE: In bone-metastatic breast cancer patients, there are no current imaging biomarkers to identify which patients have worst prognosis. The purpose of our study was to investigate if skeletal tumor burden determined by 18F-Fluoride PET/CT correlates with clinical outcomes and may help define prognosis throughout the course of the disease. RESULTS: Bone metastases were present in 49 patients. On multivariable analysis, skeletal tumor burden was significantly and independently associated with overall survival (p < 0...
March 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28414206/wenshen-zhuanggu-formula-effectively-suppresses-breast-cancer-bone-metastases-in-a-mouse-xenograft-model
#9
Jia-Jia Li, Wei-Ling Chen, Jian-Yi Wang, Qian-Wen Hu, Zhen-Ping Sun, Shuai Zhang, Sheng Liu, Xiang-Hui Han
Wenshen Zhuanggu formula (WSZG) is a traditional Chinese medicine used as an adjuvant for the prevention of bone metastases in breast cancer patients. In this study we investigated the efficacy of WSZG in preventing bone metastases and the potential mechanisms in a mouse xenograft model of breast cancer bone metastases. This model was established by injection of human MDA-MB-231BO-Luc breast cancer cells alone or a mixture of the cancer cells with bone marrow-derived mesenchymal stem cells (BMSCs) into left ventricle of the heart in female nude mice...
April 17, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28412561/metastatic-human-breast-cancer-to-the-spine-produces-mechanical-hyperalgesia-and-gait-deficits-in-rodents
#10
Rachel Sarabia-Estrada, Alejandro Ruiz-Valls, Hugo Guerrero-Cazares, Ana M Ampuero, Ismael Jimenez-Estrada, Samantha De Silva, Lydia J Bernhardt, C Rory Goodwin, A Karim Ahmed, Yuxin Li, Neil A Phillips, Ziya L Gokaslan, Alfredo Quiñones-Hinojosa, Daniel M Sciubba
BACKGROUND CONTEXT: Metastases to the spine are a common source of severe pain in cancer patients. The secondary effects of spinal metastases include pain, bone fractures, hypercalcemia, and neurological deficits. As the disease progresses, pain severity can increase until it becomes refractory to medical treatments and leads to a decreased quality of life for patients. A key obstacle in the study of pain-induced spinal cancer is the lack of reliable and reproducible spine cancer animal models...
April 13, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28412218/evaluation-of-the-combined-use-of-metronomic-zoledronic-acid-and-coriolus-versicolor-in-intratibial-breast-cancer-mouse-model
#11
Chun-Hay Ko, Grace Gar-Lee Yue, Si Gao, Ke-Wang Luo, Wing-Sum Siu, Wai-Ting Shum, Hoi-Ting Shiu, Julia Kin-Ming Lee, Gang Li, Ping-Chung Leung, Andreas Evdokiou, Clara Bik-San Lau
ETHNOPHARMACOLOGICAL RELEVANCE: Coriolus versicolor (CV) is a mushroom traditionally used for strengthening the immune system and nowadays used as immunomodulatory adjuvant in anticancer therapy. Breast cancer usually metastasizes to the skeleton, interrupts the normal bone remodeling process and causes osteolytic bone lesions. The aims of the present study were to evaluate its herb-drug interaction with metronomic zoledronate in preventing cancer propagation, metastasis and bone destruction...
April 12, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28403086/a-case-report-of-apatinib-in-treating-osteosarcoma-with-pulmonary-metastases
#12
Yong Zhou, Wengeng Zhang, Fan Tang, Yi Luo, Li Min, Wenli Zhang, Rui Shi, Hong Duan, Chongqi Tu
RATIONALE: Osteosarcoma is the most common malignant bone tumor in children and adolescents. Pulmonary metastases lead to a significantly increased risk of death. Apatinib, a new potent oral small-molecule tyrosine kinase inhibitor targeting the intracellular domain of vascular endothelial growth factor receptor 2 (VEGFR-2), shows survival benefits in treating advanced or metastatic gastric adenocarcinoma, non-squamous non-small cell lung cancer and metastatic breast cancer. However, its efficacy in metastatic osteosarcoma has not been reported yet...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28383841/-atypical-presentation-of-a-breast-cancer-pituitary-metastasis
#13
J Langrand-Escure, A Vallard, J-Ph Suchaud, P Diao, N Magné
Pituitary metastasis occur in 1-5 % of patients with cancer. We report the discovery of a unique pituitary metastasis of breast cancer. A 67 years old woman was treated in 2003 for local adenocarcinoma. After bone metastatic relapse in 2008, the patient developed diplopia and diabetes insipidus. An MRI revealed a histologically proven metastatic pituitary nodule. Further explorations revealed failure of multiple endocrine axes. Pituitary metastases are relatively rare, but are probably under-diagnosed in the presence of advanced cancers with impaired general condition...
July 2016: Revue Médicale de Liège
https://www.readbyqxmd.com/read/28370412/pthrp-12-48-modulates-the-bone-marrow-microenvironment-and-suppresses-human-osteoclast-differentiation-and-lifespan
#14
Archana Kamalakar, Charity L Washam, Nisreen S Akel, Bethany J Allen, Diarra K Williams, Frances L Swain, Kim Leitzel, Alan Lipton, Dana Gaddy, Larry J Suva
Bone is a common site for metastasis in breast cancer patients and is associated with a series of complications which significantly compromise patient survival, partially due to the advanced stage of disease at the time of detection. Currently, no clinically-approved biomarkers can identify or predict the development of bone metastasis. We recently identified a unique peptide fragment of parathyroid hormone-related protein (PTHrP), PTHrP(12-48), as a validated serum biomarker in breast cancer patients that correlates with and predicts the presence of bone metastases...
March 29, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28345763/the-role-of-runx2-in-facilitating-autophagy-in-metastatic-breast-cancer-cells
#15
Manish Tandon, Ahmad H Othman, Vivek Ashok, Gary S Stein, Jitesh Pratap
Breast cancer metastases cause significant patient mortality. During metastases, cancer cells use autophagy, a catabolic process to recycle nutrients via lysosomal degradation, to overcome nutritional stress for their survival. The Runt-related transcription factor, Runx2, promotes cell survival under metabolic stress and regulates breast cancer progression and bone metastases. Here, we identify that Runx2 enhances autophagy in metastatic breast cancer cells. We defined Runx2 function in cellular autophagy by monitoring microtubule-associated protein light chain (LC3B-II) levels, an autophagy-specific marker...
March 27, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28322342/therapy-targeted-to-the-metastatic-niche-is-effective-in-a-model-of-stage-iv-breast-cancer
#16
Byunghee Yoo, Amol Kavishwar, Ping Wang, Alana Ross, Pamela Pantazopoulos, Michael Dudley, Anna Moore, Zdravka Medarova
Treatment of stage IV metastatic breast cancer patients is limited to palliative options and represents an unmet clinical need. Here, we demonstrate that pharmacological inhibition of miRNA-10b - a master regulator of metastatic cell viability - leads to elimination of distant metastases in a mouse model of metastatic breast cancer. This was achieved using the miRNA-10b inhibitory nanodrug, MN-anti-miR10b, which consists of magnetic nanoparticles, conjugated to LNA-based miR-10b antagomirs. Intravenous injection of MN-anti-miR10b into mice bearing lung, bone, and brain metastases from breast cancer resulted in selective accumulation of the nanodrug in metastatic tumor cells...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28316212/-evaluation-and-classification-of-drug-therapy-for-breast-cancer-with-bone-only-metastasis
#17
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/28314325/mic1-gdf15-as-a-bone-metastatic-disease-biomarker
#18
Jindra Windrichova, Radka Fuchsova, Radek Kucera, Ondrej Topolcan, Ondrej Fiala, Jindrich Finek, Dagmar Slipkova
AIM: The aim of the study was to evaluate MIC1/GDF15 as a biomarker in the monitoring of bone metastases occurrence. PATIENTS AND METHODS: The assessed group included patients diagnosed with: prostate cancer, breast cancer, lung cancer and colorectal cancer. Patients were divided into two groups based on the scintigraphy of the occurrence of bone metastases. Group 0 contained 55 patients without bone metastases, that served as the control group. Group 1 contained 75 patients with bone metastases...
March 2017: Anticancer Research
https://www.readbyqxmd.com/read/28303941/alteration-of-osteoblast-arrangement-via-direct-attack-by-cancer-cells-new-insights-into-bone-metastasis
#19
Yumi Kimura, Aira Matsugaki, Aiko Sekita, Takayoshi Nakano
Intact bone tissue exhibits a characteristic anisotropic microstructure derived from collagen fiber alignment and the related c-axis orientation of apatite crystals, which govern the mechanical properties of bone tissue. In contrast, tumor-invaded bone exhibits a disorganized, less-aligned microstructure that results in severely disrupted mechanical function. Despite its importance both in basic principle and in therapeutic applications, the classical understanding of bone metastasis is limited to alterations in bone mass regulated by metastatic cancer cells...
March 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28292995/-a-case-of-stage-iv-breast-cancer-with-long-term-survival-by-chemotherapy-developing-pulmonary-tumor-thrombotic-microangiopathy-during-the-treatment-course
#20
Kana Kobayashi, Akari Murakami, Saaya Komatsu, Kanako Nishiyama, Michiko Yamashita, Wakana Sugimori, Yoshiaki Kamei, Hiroaki Asai, Akiyoshi Ogimoto, Kazuo Honda, Yasutsugu Takada
Pulmonary tumor thrombotic microangiopathy(PTTM)caused by pulmonary artery microscopic tumor emboli and fibrocellular and/or fibromuscular proliferation leads to progressive pulmonary hypertension and respiratory failure.The prognosis is extremely poor and most patients die shortly after onset.We report a patient with Stage IV breast cancer and long-term survival who developed PTTM during chemotherapy treatment.A 63-year-old woman with multiple metastases in her cerebellum, bone, lung, and lymph node after left breast conserving surgery started to experience dyspnea and malaise 7 years after the surgery...
March 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
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