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https://www.readbyqxmd.com/read/28345763/the-role-of-runx2-in-facilitating-autophagy-in-metastatic-breast-cancer-cells
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
https://www.readbyqxmd.com/read/28286613/treatment-outcomes-and-clinicopathologic-characteristics-of-triple-negative-breast-cancer-a-report-from-cancer-institute-of-iran
#7
Mehrzad Mirzania, Seyed Reza Safaee, Farhad Shahi, Issa Jahanzad, Ghazal Zahedi, Reza Mehdizadeh
Background: Triple-negative breast cancers (TNBC) have a more aggressive course and are associated with poorer prognosis in comparison with other subtypes of breast cancer. One of the most common subtypes of TNBC is basal-like. The aim of this study was to investigate clinicopathological characteristics and clinical course of TNBC in Iranian women and compare them with other studies. Subjects and Methods: Between March 2009 and February 2011, patients with breast cancer in Cancer Institute of Iran were selected and then followed-up for 2 years...
January 1, 2017: International Journal of Hematology-oncology and Stem Cell Research
https://www.readbyqxmd.com/read/28280631/gastric-metastasis-of-bilateral-breast-cancer
#8
Omar Jmour, Asma Belaïd, Fahmi Mghirbi, Khalil Béhi, Raoudha Doghri, Farouk Benna
Breast cancer is the most common malignancy in women. The most frequent metastatic sites are lung, bone, liver and brain. On the other hand, gastric metastases are rare. Synchronous bilateral breast cancer (SBBC) occurs rarely. Lobular carcinoma is the histological type most often associated with bilateral breast carcinomas and gastric metastases. We made a retrospective study including four patients followed in the Salah Azaiez Institute, for a bilateral breast cancer with gastric metastases. We analyzed the epidemiological, anatomoclinical and therapeutic particularities of this rare entity...
February 2017: Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/28279922/biomaterial-enabled-delivery-of-sdf-1%C3%AE-at-the-ventral-side-of-breast-cancer-cells-reveals-a-crosstalk-between-cell-receptors-to-promote-the-invasive-phenotype
#9
Xi Qiu Liu, Laure Fourel, Fabien Dalonneau, Rabia Sadir, Salome Leal, Hugues Lortat-Jacob, Marianne Weidenhaupt, Corinne Albiges-Rizo, Catherine Picart
The SDF-1α chemokine (CXCL12) is a potent bioactive chemoattractant known to be involved in hematopoietic stem cell homing and cancer progression. The associated SDF-1α/CXCR4 receptor signaling is a hallmark of aggressive tumors, which can metastasize to distant sites such as lymph nodes, lung and bone. Here, we engineered a biomimetic tumoral niche made of a thin and soft polyelectrolyte film that can retain SDF-1α to present it, in a spatially-controlled manner, at the ventral side of the breast cancer cells...
February 27, 2017: Biomaterials
https://www.readbyqxmd.com/read/28274254/the-use-of-randomisation-based-efficacy-estimators-in-non-inferiority-trials
#10
David Gillespie, Daniel Farewell, Peter Barrett-Lee, Angela Casbard, Anthony Barney Hawthorne, Chris Hurt, Nick Murray, Chris Probert, Rachel Stenson, Kerenza Hood
BACKGROUND: In a non-inferiority (NI) trial, analysis based on the intention-to-treat (ITT) principle is anti-conservative, so current guidelines recommend analysing on a per-protocol (PP) population in addition. However, PP analysis relies on the often implausible assumption of no confounders. Randomisation-based efficacy estimators (RBEEs) allow for treatment non-adherence while maintaining a comparison of randomised groups. Fischer et al. have developed an approach for estimating RBEEs in randomised trials with two active treatments, a common feature of NI trials...
March 9, 2017: Trials
https://www.readbyqxmd.com/read/28268169/role-of-runx2-in-breast-cancer-mediated-bone-metastasis
#11
REVIEW
M Vishal, R Swetha, G Thejaswini, B Arumugam, N Selvamurugan
Breast cancer is one of the most prevalent forms of cancer in women. The currently available treatment for breast cancer is mostly curative except when it becomes metastatic. One of the major sites for metastasis of breast cancer is the bone. Homing of the circulating tumor cells is tightly regulated including a number of factors present in the cells and their microenvironment. Runx2, a transcription factor plays an important role in osteogenesis and breast cancer mediated bone metastases. One of the recent advances in molecular therapy includes the discovery of the small, non-coding microRNAs (miRNAs) and they target specific genes to reduce their expression at the post-transcriptional level...
March 6, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28267911/-360-degrees-instrumentation-for-cervical-instability-due-to-metastatic-bone-disease-case-report
#12
J E Vargas-Jasso, M A Clara-Altamirano, G Reyes-Soto, M Cuéllar-Hubbe, J A Mejía-Pérez
INTRODUCTION: The spine is the most common site for bone metastases; being the breast, prostate and lung cancer which have most affected. The thoracic spine is involved in 70% of cases, followed by the lumbar and cervical region. MATERIAL AND METHODS: This is a 59 years old female diagnosed with breast adenocarcinoma and metastatic bone disease in cervical spine C2, C3 level and instability of that segment because of a compression fracture of C3 greater than 80% without invasion of the spinal canal, she begins with paresthesias of upper limbs...
July 2016: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/28264744/a-qualitative-study-of-patient-and-provider-perspectives-on-using-web-based-pain-coping-skills-training-to-treat-persistent-cancer-pain
#13
Christine Rini, Maihan B Vu, Hannah Lerner, Catherine Bloom, Jessica Carda-Auten, William A Wood, Ethan M Basch, Peter M Voorhees, Katherine E Reeder-Hayes, Francis J Keefe
OBJECTIVE: Persistent pain is common and inadequately treated in cancer patients. Behavioral pain interventions are a recommended part of multimodal pain treatments, but they are underused in clinical care due to barriers such as a lack of the resources needed to deliver them in person and difficulties coordinating their use with clinical care. Pain coping skills training (PCST) is an evidence-based behavioral pain intervention traditionally delivered in person. Delivering this training via the web would increase access to it by addressing barriers that currently limit its use...
March 7, 2017: Palliative & Supportive Care
https://www.readbyqxmd.com/read/28261437/outcome-after-surgery-for-metastases-to-the-pelvic-bone-a-single-institutional-experience
#14
Chandra Kumar Krishnan, Ilkyu Han, Han-Soo Kim
BACKGROUND: The pelvic bone is the most common site of bone metastases following the axial skeleton. Surgery on the pelvic bone is a demanding procedure. Few studies have been published on the surgical outcomes of metastasis to the pelvic bone with only small numbers of patients involved. This study sought to analyze the complications, local progression and survival after surgery for metastasis to the pelvic bone on a larger cohort of patients. METHODS: We analyzed 83 patients who underwent surgery for metastases to the pelvic bone between the years 2000 and 2015...
March 2017: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/28260828/differential-site-based-expression-of-pentose-phosphate-pathway-related-proteins-among-breast-cancer-metastases
#15
Yoon Jin Cha, Woo Hee Jung, Ja Seung Koo
Purpose. We aimed to investigate the expression of pentose phosphate pathway- (PPP-) related proteins in metastatic breast cancer and its relationship with clinicopathologic factors. Methods. Tissue samples from 126 metastatic breast cancers were included in a tissue microarray. Expression of PPP-related proteins [glucose-6-phosphate dehydrogenase (G6PDH), 6-phosphogluconolactonase (6PGL), 6-phosphogluconate dehydrogenase (6PGDH), and nuclear factor erythroid 2-related factor (NRF2)] was determined by immunohistochemistry...
2017: Disease Markers
https://www.readbyqxmd.com/read/28256905/effect-of-bone-reading-ct-software-on-radiologist-performance-in-detecting-bone-metastases-from-breast-cancer
#16
Ji Young Ha, Kyung Nyeo Jeon, Kyungsoo Bae, Bong Hoi Choi
OBJECTIVE: To evaluate the effect of CT software that generates rib unfolding images and automatically numbers ribs and thoracic spines on radiologist's performance in detecting thoracic bone metastases from breast cancer. METHODS: A total of 126 breast cancer patients who underwent chest CT and FDG-PET/CT and/or bone scans were retrospectively reviewed. One board-certified radiologist (R1) and one radiology resident (R2) independently assessed the original chest CT and rib unfolding images using a commercially available post-processing software (Bone Reading) application to evaluate metastasis in the ribs and thoracic spines...
March 3, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28253728/expression-of-dna-methylation-related-proteins-in-metastatic-breast-cancer
#17
Y J Cha, W H Jung, J S Koo
We aimed to investigate the expression of methylation related proteins (5-meC and DNMT1) in the metastatic breast cancers of variable sites and its association with clinicopathologic factors. A total of 126 metastatic breast cancers (31 bone metastases, 36 brain metastases, 11 liver metastases, 48 lung metastases) were made into tissue microarray and immunohistochemical staining of ER, PR, HER-2, Ki-67, 5-meC, and DNMT1 were performed. Molecular classification was made on the basis of immunohistochemical staining result of ER, PR, HER-2, Ki-67; luminal A, luminal B, HER-2, triple negative breast cancer (TNBC)...
March 3, 2017: Neoplasma
https://www.readbyqxmd.com/read/28253234/engineering-a-humanized-bone-organ-model-in-mice-to-study-bone-metastases
#18
Laure C Martine, Boris M Holzapfel, Jacqui A McGovern, Ferdinand Wagner, Verena M Quent, Parisa Hesami, Felix M Wunner, Cedryck Vaquette, Elena M De-Juan-Pardo, Toby D Brown, Bianca Nowlan, Dan Jing Wu, Cosmo Orlando Hutmacher, Davide Moi, Tatiana Oussenko, Elia Piccinini, Peter W Zandstra, Roberta Mazzieri, Jean-Pierre Lévesque, Paul D Dalton, Anna V Taubenberger, Dietmar W Hutmacher
Current in vivo models for investigating human primary bone tumors and cancer metastasis to the bone rely on the injection of human cancer cells into the mouse skeleton. This approach does not mimic species-specific mechanisms occurring in human diseases and may preclude successful clinical translation. We have developed a protocol to engineer humanized bone within immunodeficient hosts, which can be adapted to study the interactions between human cancer cells and a humanized bone microenvironment in vivo. A researcher trained in the principles of tissue engineering will be able to execute the protocol and yield study results within 4-6 months...
April 2017: Nature Protocols
https://www.readbyqxmd.com/read/28244457/incidence-and-pattern-of-bone-metastases-at-presentation-in-indian-carcinoma-breast-patients
#19
S M Doddala, A Suryadevara, S K Chinta, A L Madisetty
BACKGROUND: Breast cancer (BC) is the most common female cancer and frequently metastases to the bones. Breast cancer among Indian women occurs a decade earlier and more aggressive than the western population. Screening guidelines are based on western studies. The aim of our study is to assess the role of Technitium99m bone scan (TBS) in screening Indian EBC patients at presentation. We also looked at the pattern of BM in all stages of BC. METHODS: Patients with BC who had TBS at presentation from January 2012 to September 2015 were included in the study...
July 2016: Indian Journal of Cancer
https://www.readbyqxmd.com/read/28243895/effects-of-hormone-receptor-status-on-the-durable-response-of-trastuzumab-based-therapy-in-metastatic-breast-cancer
#20
Hyung Soon Park, Joohyuk Sohn, Seung Il Kim, Seho Park, Hyung Seok Park, Seul Ghi Gho, Hyun Cheol Chung, Soonmyung Paik, Gun Min Kim
PURPOSE: Trastuzumab-based treatment is the standard care for patients with HER2+ metastatic breast cancer (MBC). About 10% of HER2+ MBC showed a long-term durable response (progression-free survival, PFS > 3 years) to trastuzumab-based therapy. The aim of this study is to identify clinico-pathologic factors for a durable response to trastuzumab-based therapy in HER2-positive MBC. METHODS: In the Yonsei Breast Cancer MBC Database, we identified 1218 MBC patients who were diagnosed from 2006 to 2015...
February 27, 2017: Breast Cancer Research and Treatment
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