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breast cancer bone metastases

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https://www.readbyqxmd.com/read/28810293/-comparative-study-of-three-different-decalcifying-solutions-in-bone-metastasis-specimens-with-breast-cancer
#1
H Y Wu, T Wang, K L Chen, Z W Fan, X H Pu, B Zhang, X S Fan, F Q Meng
Objective: To investigate the optimal strategy for immunohistochemical (IHC) staining in bone metastasis specimens from breast cancer. Methods: Twenty-eight bone metastases specimens from breast cancers were divided into three groups and subjected to different decalcifying agents (group A-10% nitrate, group B-EDTA decalcification, and group C-imported decalcifying solution RapidCal). The effects of those on HE and IHC staining for Ki-67, ER, PR, GATA3, RANK, RANKL, HER2 and HER2 FISH results were assessed. Results: There were no significant differences among three groups in HE morphology and IHC staining...
August 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/28799536/estrogen-receptor-esr1-mutation-in-bone-metastases-from-breast-cancer
#2
Stephan Bartels, Matthias Christgen, Angelina Luft, Sascha Persing, Kai Jödecke, Ulrich Lehmann, Hans Kreipe
Activating mutations of estrogen receptor α gene (ESR1) in breast cancer can cause endocrine resistance of metastatic tumor cells. The skeleton belongs to the metastatic sides frequently affected by breast cancer. The prevalence of ESR1 mutation in bone metastasis and the corresponding phenotype are not known. In this study bone metastases from breast cancer (n=231) were analyzed for ESR1 mutation. In 27 patients (12%) (median age 73 years, range: 55-82 years) activating mutations of ESR1 were detected. The most frequent mutation was p...
August 11, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28798322/luciferase-expression-allows-bioluminescence-imaging-but-imposes-limitations-on-the-orthotopic-mouse-4t1-model-of-breast-cancer
#3
V P Baklaushev, A Kilpeläinen, S Petkov, M A Abakumov, N F Grinenko, G M Yusubalieva, A A Latanova, I L Gubskiy, F G Zabozlaev, E S Starodubova, T O Abakumova, M G Isaguliants, V P Chekhonin
Implantation of reporter-labeled tumor cells in an immunocompetent host involves a risk of their immune elimination. We have studied this effect in a mouse model of breast cancer after the orthotopic implantation of mammary gland adenocarcinoma 4T1 cells genetically labelled with luciferase (Luc). Mice were implanted with 4T1 cells and two derivative Luc-expressing clones 4T1luc2 and 4T1luc2D6 exhibiting equal in vitro growth rates. In vivo, the daughter 4T1luc2 clone exhibited nearly the same, and 4T1luc2D6, a lower growth rate than the parental cells...
August 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28793923/concurrent-antitumor-and-bone-protective-effects-of-everolimus-in-osteotropic-breast-cancer
#4
Andrew J Browne, Marie L Kubasch, Andy Göbel, Peyman Hadji, David Chen, Martina Rauner, Friedrich Stölzel, Lorenz C Hofbauer, Tilman D Rachner
BACKGROUND: The mammalian target of rapamycin inhibitor everolimus is approved as an antitumor agent in advanced estrogen receptor-positive breast cancer. Surrogate bone marker data from clinical trials suggest effects on bone metabolism, but the mode of action of everolimus in bone biology remains unclear. In this study, we assessed potential bone-protective effects of everolimus in the context of osteotropic tumors. METHODS: The effects of everolimus on cancer cell viability in vitro and on tumor growth in vivo were assessed...
August 9, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/28767733/lactate-dehydrogenase-and-creatine-kinase-as-poor-prognostic-factors-in-lung-cancer-a-retrospective-observational-study
#5
Lei Liu, Ying He, Ge Ge, Lei Li, Ping Zhou, Yihan Zhu, Huairong Tang, Yan Huang, Weimin Li, Li Zhang
PURPOSE: Circulating molecules play important roles in lung cancer diagnosis. In addition, plasma lactate dehydrogenase (LDH) and creatine kinase (CK) have been shown to be closely related to tumor progression in breast cancer, prostate cancer, and colonel cancer. However, the relationships between LDH and CK levels with metastasis occurrence and the survival status of lung cancer patients remain unclear. EXPERIMENTAL DESIGN: A total of 1142 lung cancer patients were enrolled in this study and were separated into negative or positive groups, according to the plasma levels of CK or LDH...
2017: PloS One
https://www.readbyqxmd.com/read/28758931/tumor-stroma-crosstalk-in-bone-tissue-the-osteoclastogenic-potential-of-a-breast-cancer-cell-line-in-a-co-culture-system-and-the-role-of-egfr-inhibition
#6
Laura Mercatali, Federico La Manna, Giacomo Miserocchi, Chiara Liverani, Alessandro De Vita, Chiara Spadazzi, Alberto Bongiovanni, Federica Recine, Dino Amadori, Martina Ghetti, Toni Ibrahim
Although bone metastases represent a major challenge in the natural history of breast cancer (BC), the complex interactions involved have hindered the development of robust in vitro models. The aim of this work is the development of a preclinical model of cancer and bone stromal cells to mimic the bone microenvironment. We studied the effects on osteoclastogenesis of BC cells and Mesenchymal stem cells (MSC) cultured alone or in combination. We also analyzed: (a) whether the blockade of the Epithelial Growth Factor Receptor (EGFR) pathway modified their influence on monocytes towards differentiation, and (b) the efficacy of bone-targeted therapy on osteoclasts...
July 29, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28757653/distinct-pattern-of-metastases-in-patients-with-invasive-lobular-carcinoma-of-the-breast
#7
Aju Mathew, Padma S Rajagopal, Vipin Villgran, Gurprataap S Sandhu, Rachel C Jankowitz, Mini Jacob, Margaret Rosenzweig, Steffi Oesterreich, Adam Brufsky
BACKGROUND: Invasive lobular carcinoma (ILC) comprises around 10 - 15% of invasive breast cancers. Few prior studies have demonstrated a unique pattern of metastases between ILC and the more common invasive ductal carcinoma (IDC). To our knowledge, such data is limited to first sites of distant recurrence. We aimed to perform a comparison of the metastatic pattern of ILC and IDC at first distant recurrence as well as over the entire course of metastatic disease. METHODS: We used a prospectively collated database of patients with metastatic breast cancer...
June 2017: Geburtshilfe und Frauenheilkunde
https://www.readbyqxmd.com/read/28751098/patient-reported-quality-of-life-and-treatment-satisfaction-in-patients-with-hr-her2-advanced-metastatic-breast-cancer
#8
Robert Wood, Debanjali Mitra, Jonathan de Courcy, Shrividya Iyer
PURPOSE: Globally, around 1.67 million new cases of breast cancer are diagnosed each year, with advanced breast cancer (ABC-Stage III) and metastatic breast cancer (MBC-Stage IV) together accounting for up to 22% of incident cases. Hormone receptor-positive/human epidermal growth factor receptor 2-negative (HR(+)/HER2(-)) breast cancer comprises 66% of ABC/MBC. Understanding disease-specific health-related quality of life and patient satisfaction with treatments currently available for HR(+)/HER2(-) ABC/MBC in clinical practice is essential for assessing potential unmet need in this patient population...
July 24, 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28750038/low-calcium-diet-increases-4t1-mammary-tumor-carcinoma-cell-burden-and-bone-pathology-in-mice
#9
Wendan Wang, Jody L Gordon, Kenneth A Philbrick, Xujuan Yang, Adam J Branscum, Christiane V Löhr, Wanda M Haschek, Russell T Turner, Urszula T Iwaniec, William G Helferich
Breast cancer metastasizes to bone in the majority of patients with advanced disease. We investigated the effects of inadequate dietary calcium (Ca) on bone turnover, tumor growth, and bone response to tumor in tibia inoculated with 4T1 mammary carcinoma cells. Nine-month-old female Balb/c mice were placed on an adequate Ca (5 g/kg diet, n = 30) or low Ca (80 mg/kg diet, n = 31) diet for 14 days, then injected intratibially with 1,000 4T1 cells (transfected with luciferase for bioluminescence imaging), and sacrificed at 5, 10, or 21 days post-inoculation (n = 7-10 mice/group)...
2017: PloS One
https://www.readbyqxmd.com/read/28739717/potential-implication-of-paxillin-in-cancer-establishment-within-the-bone-environment
#10
Anna D Sobkowicz, Andrew J Sanders, Malcolm D Mason, Wen G Jiang
BACKGROUND: Bone metastases are a common feature of advanced prostatic malignancies. They are characterised by a unique prevalence of osteoblastic phenotype and a poor prognosis. Paxillin is a 68-kDa signal transduction adaptor and scaffold protein that contains motifs involved in the mediation of protein-protein interactions. The state of paxillin phosphorylation is central to determining a cell's ability to adhere, detach and migrate and hence has been linked to processes such as wound repair and tumour metastasis...
August 2017: Anticancer Research
https://www.readbyqxmd.com/read/28734793/hardware-failure-in-patients-with-metastatic-cancer-to-the-spine
#11
Rachel Pedreira, Nancy Abu-Bonsrah, A Karim Ahmed, Rafael De la Garza-Ramos, C Rory Goodwin, Ziya L Gokaslan, Justin Sacks, Daniel M Sciubba
BACKGROUND: The spine is the most common site of skeletal metastases, affecting approximately 30% of individuals with cancer. The aim of surgical treatment for metastatic spine disease is generally palliative to address pain and/or neurologic compromise, significantly improving patients' quality of life. Patients with metastatic spine disease, however, represent a vulnerable cohort and may have comorbidities or previous treatments that impair the structural integrity of spinal hardware...
July 19, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28733469/bone-morphogenetic-proteins-breast-cancer-and-bone-metastases-striking-the-right-balance
#12
Catherine Zabkiewicz, Jeyna Resaul, Rachel Hargest, Wen Jiang, Lin Ye
Bone morphogenetic proteins (BMPs) belong to the TGF-β super family, and are essential for regulation of foetal development, tissue differentiation and homeostasis, and a multitude of cellular functions. Naturally, this has led to the exploration of aberrance in this highly regulated system as a key factor in tumourigenesis. Originally identified for their role in osteogenesis and bone turnover, attention has been turned to the potential role of BMPs in tumour metastases to, and progression within, the bone niche...
July 21, 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/28729837/optimization-and-in-vivo-profiling-of-a-refined-rat-model-of-walker-256-breast-cancer-cell-induced-bone-pain-using-behavioral-radiological-histological-immunohistochemical-and-pharmacological-methods
#13
Priyank Shenoy, Andy Kuo, Irina Vetter, Maree T Smith
In the majority of patients with advanced breast cancer, there is metastatic spread to bones resulting in pain. Clinically available drug treatments for alleviation of breast cancer-induced bone pain (BCIBP) often produce inadequate pain relief due to dose-limiting side-effects. A major impediment to the discovery of novel well-tolerated analgesic agents for the relief of pain due to bony metastases is the fact that most cancer-induced bone pain models in rodents relied on the systemic injection of cancer cells, causing widespread formation of cancer metastases and poor general animal health...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28725538/a-rare-case-of-solitary-kidney-metastasis-following-primary-laryngeal-squamous-cell-carcinoma
#14
Sharon Del Vecchio, Robert Ellis, Kylie Gallagher, Keng Lim Ng, Li Ma, Geoffrey Strutton, Simon Wood
Laryngeal cancer is the 14th most common malignancy worldwide, and its common subtype squamous cell carcinoma (SCC) is highly associated with tobacco use and long-term alcohol consumption. The incidence of distant metastasis from a primary laryngeal cancer has been reported to be very low, between 6.5% and 8.5%, according to published tumour registry data. Distant metastases of laryngeal SCC most commonly involve the lung, liver, bone and mediastinum, seldom involving the kidney. Renal metastasis has been well established in many other cancers such as lymphoma, lung, breast and gastric carcinoma...
2017: Journal of Kidney Cancer and VHL
https://www.readbyqxmd.com/read/28714574/a-humanised-tissue-engineered-bone-model-allows-species-specific-breast-cancer-related-bone-metastasis-in-vivo
#15
V M C Quent, A V Taubenberger, J C Reichert, L C Martine, J A Clements, D W Hutmacher, D Loessner
Bone metastases frequently occur in the advanced stages of breast cancer. At this stage, the disease is deemed incurable. To date, the mechanisms of breast cancer-related metastasis to bone are poorly understood. This may be attributed to the lack of appropriate animal models to investigate the complex cancer cell-bone interactions. In this study, two established tissue-engineered bone constructs (TEBCs) were applied to a breast cancer-related metastasis model. A cylindrical medical-grade polycaprolactone-tricalcium phosphate scaffold produced by fused deposition modelling (scaffold 1) was compared with a tubular calcium phosphate-coated polycaprolactone scaffold fabricated by solution electrospinning (scaffold 2) for their potential to generate ectopic humanised bone in NOD/SCID mice...
July 17, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28704698/interventional-radiology-in-breast-cancer
#16
REVIEW
Lizbeth Moira Kenny, Franco Orsi, Andreas Adam
Molecular profiling of metastatic disease may greatly influence the systemic therapy recommended by oncologists and chosen by patients, allowing treatment to be more targeted. Comprehensive care of patients with advanced breast cancer now includes percutaneous image-guided biopsy if this has the potential to influence systemic treatment [1]. Interventional radiologists can contribute significantly to the care of patients affected by breast cancer, in diagnostic and supportive procedures and importantly also in treatment...
July 10, 2017: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/28698809/p-rex1-expression-in-invasive-breast-cancer-in-relation-to-receptor-status-and-distant-metastatic-site
#17
Jonathan D Marotti, Kristen E Muller, Laura J Tafe, Eugene Demidenko, Todd W Miller
BACKGROUND: Phosphatidylinositol-3,4,5-trisphosphate-dependent Rac exchange factor 1 (P-Rex1) has been implicated in cancer growth, metastasis, and response to phosphatidylinositol 3-kinase (PI3K) inhibitor therapy. The aim of this study was to determine whether P-Rex1 expression differs between primary and metastatic human breast tumors and between breast cancer subtypes. DESIGN: P-Rex1 expression was measured in 133 specimens by immunohistochemistry: 40 and 42 primary breast tumors from patients who did versus did not develop metastasis, respectively, and 51 breast-derived tumors from metastatic sites (36 of which had matching primary tumors available for analysis)...
2017: International Journal of Breast Cancer
https://www.readbyqxmd.com/read/28698458/integrin-%C3%AE-v%C3%AE-3-signaling-in-tumor-induced-bone-disease
#18
REVIEW
Kristin A Kwakwa, Julie A Sterling
Tumor-induced bone disease is common among patients with advanced solid cancers, especially those with breast, prostate, and lung malignancies. The tendency of these cancers to metastasize to bone and induce bone destruction is, in part, due to alterations in integrin expression and signaling. Substantial evidence from preclinical studies shows that increased expression of integrin αvβ3 in tumor cells promotes the metastatic and bone-invasive phenotype. Integrin αvβ3 mediates cell adhesion to several extracellular matrix proteins in the bone microenvironment which is necessary for tumor cell colonization as well as the transmission of mechanical signals for tumor progression...
July 8, 2017: Cancers
https://www.readbyqxmd.com/read/28695563/bone-targeted-therapies-in-advanced-breast-cancer
#19
Ewelina Biskup, Fengfeng Cai, Marcus Vetter
Bone targeted therapies are of increasing importance, not only for bone health in the clinical course of breast cancer, but recently also in the adjuvant setting as preventative, anticancer and prognosis-improving agents. It is well established that women with advanced breast cancer receive bisphosphonates or denosumab to prevent therapy-related osteoporosis. As many as 70% of these patients suffer from bone metastases and receive bone targeted agents in order to prevent skeletal related events (SREs), which are debilitating or diminish the quality of life...
July 11, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/28694161/cxcr4-targeted-dendrimer-for-anti-cancer-drug-delivery-and-breast-cancer-cell-migration-inhibition
#20
Chuda Chittasupho, Songyot Anuchapreeda, Narong Sarisuta
CXCR4 and its ligand CXCL12 play a critical role in the metastasis of various types of cancer including breast cancer. Breast tumors preferentially metastasize to the lung, bones and distant lymph nodes, secreting high levels of CXCL12. We hypothesized that targeted inhibition of CXCR4 in breast cancer cells should suppress CXCR4-positive tumor cells toward secondary metastatic sites. In the present study, the efficacy of CXCR4 targeted dendrimers carrying DOX (LFC131-DOX-D4) on cellular binding, cytotoxicity, and migration of BT-549-Luc and T47D breast cancer cells was investigated...
July 7, 2017: European Journal of Pharmaceutics and Biopharmaceutics
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