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Brain metastasis breast cancer

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https://www.readbyqxmd.com/read/29784888/identification-of-brain-metastasis-genes-and-therapeutic-evaluation-of-histone-deacetylase-inhibitors-in-a-clinically-relevant-model-of-breast-cancer-brain-metastasis
#1
Soo-Hyun Kim, Richard P Redvers, Lap Hing Chi, Xiawei Ling, Andrew J Lucke, Robert C Reid, David P Fairlie, Ana Carolina Baptista Moreno Martin, Robin L Anderson, Delphine Denoyer, Normand Pouliot
Breast cancer brain metastasis remains largely incurable. While several mouse models have been developed to investigate the genes and mechanisms regulating breast cancer brain metastasis, these models often lack clinical relevance since they require the use of immune-compromised mice and/or are poorly metastatic to brain from the mammary gland. We describe the development and characterisation of an aggressive brain metastatic variant of the 4T1 syngeneic model (4T1Br4) that spontaneously metastasises to multiple organs, but is selectively more metastatic to the brain from the mammary gland than parental 4T1 tumours...
May 21, 2018: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/29782359/brca1-mutations-associated-with-increased-risk-of-brain-metastases-in-breast-cancer-a-1-2-matched-pair-analysis
#2
Peter J Zavitsanos, David E Wazer, Jaroslaw T Hepel, Yihong Wang, Kamaljeet Singh, Kara L Leonard
BACKGROUND: Brain metastases (BM) occur in ∼5% of breast cancer patients. BRCA1-associated cancers are often basal-like and basal-like cancers are known to have a predilection for central nervous system metastases. We performed a matched-pair analysis of breast cancer patients with and without BRCA mutations and compared the frequency of BM in both groups. MATERIALS AND METHODS: From a database of 1935 patients treated for localized breast cancer at our institution from 2009 to 2014 we identified 20 patients with BRCA1 or BRCA2 mutations and manually matched 40 patients without BRCA mutations accounting for age, stage, estrogen receptor expression, and human epidermal growth factor receptor 2 (HER2) expression...
May 18, 2018: American Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29755905/a-case-of-neurotrophic-keratopathy-concomitant-to-brain-metastasis
#3
Chiara Bonzano, Elisabetta Bonzano, Carlo Alberto Cutolo, Riccardo Scotto, Carlo Enrico Traverso
We report a case of a 63-year-old Caucasian female referred to the cornea service of Clinica Oculistica with a neurotrophic corneal ulcer, decreased corneal sensitivity, absent corneal reflex, and decreased lacrimation. The medical record review was relevant for mastectomy and adjuvant therapy for breast cancer complicated by pontocerebellar angle metastasis. Eye patching and application of antibiotic and vitamin ointments were prescribed at first, without a significant improvement. Thus, treatment with autologous serum was started...
March 12, 2018: Curēus
https://www.readbyqxmd.com/read/29755127/a-novel-long-non-coding-rna-linc-znf469-3-promotes-lung-metastasis-through-mir-574-5p-zeb1-axis-in-triple-negative-breast-cancer
#4
Po-Shun Wang, Cheng-Han Chou, Cheng-Han Lin, Yun-Chin Yao, Hui-Chuan Cheng, Hao-Yi Li, Yu-Chung Chuang, Chia-Ning Yang, Luo-Ping Ger, Yu-Chia Chen, Forn-Chia Lin, Tang-Long Shen, Michael Hsiao, Pei-Jung Lu
Triple-negative breast cancer (TNBC) patients usually lead to poor prognosis and survival because of metastasis. The major sites for TNBC metastasis include the lungs, brain, liver, and bone. Long non-coding RNAs (lncRNAs) are non-protein-coding transcripts longer than 200 nucleotides and have been reported as important regulators in BC metastasis. However, the underlying mechanisms for lncRNAs regulating TNBC metastasis are not fully understood. Here we found that linc-ZNF469-3 was highly expressed in lung-metastatic LM2-4175 TNBC cells and overexpression of linc-ZNF469-3 enhanced invasion ability and stemness properties in vitro and lung metastasis in vivo...
May 14, 2018: Oncogene
https://www.readbyqxmd.com/read/29738653/-prognostic-factors-in-patients-with-breast-cancer-and-brain-metastasis-as-the-first-site-of-recurrence
#5
Alejandro Mohar-Betancourt, Alberto Alvarado-Miranda, Juan Alejandro Torres-Domínguez, Paula Cabrera, Fernando Lara-Medina, Yaudim Sadid Villarreal-Gómez, Nancy Reynoso-Noverón
OBJECTIVE: To evaluate the prognostic factors (clinicalpathological characteristics and treatments) in patients with breast cancer and metastasis to central nervous system (CNS) as the first site of the disease. MATERIAL AND METHODS: Kaplan-Meier method and life tables were used to estimate overall survival time over a retrospective cohort of 125 breast cancer patients treated at the Instituto Nacional de Cancerología (INCan) during 2007-2015, who presented metastasis to the CNS as the first site of extension of the disease...
March 2018: Salud Pública de México
https://www.readbyqxmd.com/read/29725535/defects-in-homologous-recombination-repair-genes-are-associated-with-good-prognosis-and-clinical-sensitivity-to-dna-damaging-agents-in-pancreatic-cancer-a-case-report
#6
Amir Sonnenblick, Aviad Zick, Myriam Maoz, Sherri Cohen, Luna Kadouri, Tamar Peretz, Ayala Hubert
Tumor genome sequencing is important for increasing our understanding of the development of cancer, which may be affected by different therapies. In the present study, genomic evolution was investigated in a patient with stage IV pancreatic cancer bearing a germline breast cancer 2 ( BRCA2 ) mutation. The patient received cisplatin, a DNA cross-linking agent, which led to a long-lasting complete response. Eventually the patient developed brain metastasis, suggesting the acquisition of resistance to cisplatin...
May 2018: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/29725432/a-nomogram-for-predicting-survival-in-patients-with-breast-cancer-brain-metastasis
#7
Zhou Huang, Bing Sun, Shikai Wu, Xiangying Meng, Yang Cong, Ge Shen, Santai Song
Brain metastasis (BM) is common in patients with breast cancer. Predicting patient survival is critical for the clinical management of breast cancer brain metastasis (BCBM). The present study was designed to develop and evaluate a prognostic model for patients with newly diagnosed BCBM. Based on the clinical data of patients with BCBM treated in the Affiliated Hospital of Academy of Military Medical Sciences (Beijing, China) between 2002 and 2014, a nomogram was developed to predict survival using proportional hazards regression analysis...
May 2018: Oncology Letters
https://www.readbyqxmd.com/read/29708403/detection-of-unknown-primary-tumor-in-patients-presented-with-brain-metastasis-by-f-18-fluorodeoxyglucose-positron-emission-tomography-computed-tomography
#8
Zehra Pınar Koç, Pelin Özcan Kara, Ahmet Dağtekin
AIM:  F-18 fluorodeoxyglucose (FDG) PET/CT has several advantages in diagnosis of cancer of unknown primary with reported incremental diagnostic value. In this study, we evaluated the patients who were presented with multiple brain metastasis and unknown primary tumor. MATERIALS & METHODS: 31 patients (17 males, 14 females; mean: 56.1 ± 14.22 years old) with diagnosis of brain metastasis according to histopathology and/or MRI were included into this retrospective study...
April 30, 2018: CNS Oncology
https://www.readbyqxmd.com/read/29708077/emerging-drugs-for-the-treatment-of-breast-cancer-brain-metastasis-a-review-of-patent-literature
#9
Maricruz Anaya-Ruiz, Cindy Bandala, Patricia Martinez-Morales, Gerardo Landeta, Rebeca D Martinez-Contreras, Nancy Martinez-Montiel, Martin Perez-Santos
BACKGROUND: Despite dramatic advances in cancer treatment that lead to long-term survival, there is an increasing number of patients presenting with clinical manifestations of cerebral metastasis in breast cancer, for whom only palliative treatment options exist. OBJECTIVE: The present review aims to provide to identify recent patens of breast cancer brain metastasis that may have application in improving cancer treatment. METHOD: Recent patents regarding the breast cancer brain metastasis were obtained from USPTO patent databases, Esp@cenet, Patentscope and Patent Inspiration®...
April 29, 2018: Recent Patents on Anti-cancer Drug Discovery
https://www.readbyqxmd.com/read/29700002/zika-virus-selectively-kills-aggressive-human-embryonal-cns-tumor-cells-in-vitro-and-in-vivo
#10
Carolini Kaid, Ernesto Goulart, Luiz Carlos Caires-Júnior, Bruno Henrique Silva Araujo, Alessandra Soares-Schanoski, Heloisa Maria Siqueira Bueno, Kayque Alves Telles Silva, Renato M Astray, Amanda F Assoni, Antonio F Ribeiro Júnior, Daniella Cristina Ventini, Ana L P Puglia, Roselane P Gomes, Mayana Zatz, Oswaldo K Okamoto
Zika virus (ZIKV) is largely known for causing brain abnormalities due to its ability to infect neural progenitor stem cells (NPC) during early development. Here we show that ZIKV is also capable of infecting and destroying stem-like cancer cells from aggressive human embryonal tumors of the central nervous system (CNS). When evaluating the oncolytic properties of Brazilian Zika virus strain (ZIKVBR) against human breast, prostate, colorectal, and embryonal CNS tumor cell lines, we verified a selective infection of CNS tumor cells followed by massive tumor cell death...
April 26, 2018: Cancer Research
https://www.readbyqxmd.com/read/29686118/pearls-oy-sters-the-critical-role-of-histopathology-in-diagnosing-cancer-associated-necrotizing-cns-vasculitis
#11
Joshua Sheehan, Jessica Tate, Ryan Mott, Carol Geer, Rachel Wolfe, Roy E Strowd, Amy Guzik
OBJECTIVE: To highlight the importance of a broad differential and histopathologic confirmation in patients with newly diagnosed cancer with brain lesions atypical for CNS metastasis. METHODS: We report 2 cases of biopsy-proven CNS vasculitis in patients undergoing treatment for a newly diagnosed nonmetastatic cancer. Comprehensive medical record review was performed to identify the clinical presentation, representative neuroimaging, histopathologic features, and response to treatment...
April 24, 2018: Neurology
https://www.readbyqxmd.com/read/29678476/cabazitaxel-plus-lapatinib-as-therapy-for-her2-metastatic-breast-cancer-with-intracranial-metastases-results-of-a-dose-finding-study
#12
Denise A Yardley, Lowell L Hart, Patrick J Ward, Gail L Wright, Mythili Shastry, Lindsey Finney, Laura M DeBusk, John D Hainsworth
BACKGROUND: Lapatinib is an oral small molecule tyrosine kinase epidermal growth factor receptor-1/HER2 inhibitor that crosses the blood-brain barrier and is active against central nervous system (CNS) metastases. Cabazitaxel is a taxoid that is effective against taxane-resistant metastatic breast cancer (MBC) and has distinguished itself by its ability to cross the blood-brain barrier. The present phase II study (ClinicalTrials.gov identifier, NCT01934894) evaluated the combination of these agents to treat HER2+ MBC patients with CNS metastases...
March 8, 2018: Clinical Breast Cancer
https://www.readbyqxmd.com/read/29673325/incidence-pattern-and-prognosis-of-brain-metastases-in-patients-with-metastatic-triple-negative-breast-cancer
#13
Jia Jin, Yu Gao, Jian Zhang, Leiping Wang, Biyun Wang, Jun Cao, Zhimin Shao, Zhonghua Wang
BACKGROUND: To identify the incidence, recurrence pattern and prognosis of brain metastases (BM) among women with metastatic triple negative breast cancer (mTNBC) treated consecutively at a single institution during a 7-year period. METHODS: Patients with histologically confirmed mTNBC were retrospectively identified. The incidence of BM as first site of recurrence and the cumulative BM incidence were computed. We used the Cox proportional hazards model to identify the univariate and multivariate factors associated with survival...
April 19, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29615433/mutation-profiling-of-key-cancer-genes-in-primary-breast-cancers-and-their-distant-metastases
#14
Willemijne Ame Schrijver, Pier Selenica, Ju Youn Lee, Charlotte K Y Ng, Kathleen Burke, Salvatore Piscuoglio, Samuel H Berman, Jorge S Reis-Filho, Britta Weigelt, Paul J Van Diest, Cathy B Moelans
Although the repertoire of somatic genetic alterations of primary breast cancers has been extensively catalogued, the genetic differences between primary and metastatic tumors have been less studied. In this study, we compared somatic mutations and gene copy number alterations of primary breast cancers and their matched metastases from patients with estrogen receptor (ER)-negative disease, with higher incidence of brain metastases than ER-positive/HER2-negative cancers. DNA samples obtained from formalin-fixed paraffin-embedded ER-negative/HER2-positive (n=9) and ER-, progesterone receptor (PR-), HER2-negative (n=8) primary breast cancers and from paired brain or skin metastases and normal tissue were subjected to a hybridization capture-based massively parallel sequencing assay, targeting 341 key cancer genes...
April 3, 2018: Cancer Research
https://www.readbyqxmd.com/read/29599302/molecular-sequence-of-events-and-signaling-pathways-in-cerebral-metastases
#15
REVIEW
Jared B Cooper, Jennifer S Ronecker, Michael E Tobias, Avinash L Mohan, Virany Hillard, Raj Murali, Chirag D Gandhi, Meic H Schmidt, Meena Jhanwar-Uniyal
Brain metastases are the leading cause of morbidity and mortality among cancer patients, and are reported to occur in about 40% of cancer patients with metastatic disease in the United States of America. Primary tumor cells appear to detach from the parent tumor site, migrate, survive and pass through the blood brain barrier in order to establish cerebral metastases. This complex process involves distinct molecular and genetic mechanisms that mediate metastasis from these primary organs to the brain. Furthermore, an interaction between the invading cells and cerebral milieu is shown to promote this process as well...
April 2018: Anticancer Research
https://www.readbyqxmd.com/read/29580128/breast-cancer-lung-metastasis-molecular-biology-and-therapeutic-implications
#16
Liting Jin, Bingchen Han, Emily Siegel, Yukun Cui, Armando Giuliano, Xiaojiang Cui
Distant metastasis accounts for the vast majority of deaths in patients with cancer. Breast cancer exhibits a distinct metastatic pattern commonly involving bone, liver, lung, and brain. Breast cancer can be divided into different subtypes based on gene expression profiles, and different breast cancer subtypes show preference to distinct organ sites of metastasis. Luminal breast tumors tend to metastasize to bone while basal-like breast cancer (BLBC) displays a lung tropism of metastasis. However, the mechanisms underlying this organ-specific pattern of metastasis still remain to be elucidated...
March 26, 2018: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/29568985/organ-specific-metastasis-of-breast-cancer-molecular-and-cellular-mechanisms-underlying-lung-metastasis
#17
REVIEW
Meysam Yousefi, Rahim Nosrati, Arash Salmaninejad, Sadegh Dehghani, Alireza Shahryari, Alihossein Saberi
BACKGROUND: Breast cancer (BC) is the most common type of cancer in women and the second cause of cancer-related mortality world-wide. The majority of BC-related deaths is due to metastasis. Bone, lung, brain and liver are the primary target sites of BC metastasis. The clinical implications and mechanisms underlying bone metastasis have been reviewed before. Given the fact that BC lung metastasis (BCLM) usually produces symptoms only after the lungs have been vastly occupied with metastatic tumor masses, it is of paramount importance for diagnostic and prognostic, as well as therapeutic purposes to comprehend the molecular and cellular mechanisms underlying BCLM...
April 2018: Cellular Oncology (Dordrecht)
https://www.readbyqxmd.com/read/29567857/targeting-brain-adaptive-cancer-stem-cells-prohibits-brain-metastatic-colonization-of-triple-negative-breast-cancer
#18
Ding Ren, Xiaoping Zhu, Ren Kong, Zhen Zhao, Jianting Sheng, Jiang Wang, Xiaoyun Xu, Jiyong Liu, Kemi Cui, Xiang H-F Zhang, Hong Zhao, Stephen T C Wong
Triple-negative breast cancer (TNBC) exhibits more traits possessed by cancer stem cells (CSC) than other breast cancer subtypes and is more likely to develop brain metastases. TNBC patients usually have shorter survival time after diagnosis of brain metastasis, suggesting an innate ability of TNBC tumor cells in adapting to the brain. In this study, we establish novel animal models to investigate early tumor adaptation in brain metastases by introducing both patient-derived and cell line-derived CSC-enriched brain metastasis tumorsphere cells into mice...
April 15, 2018: Cancer Research
https://www.readbyqxmd.com/read/29566179/breast-cancer-brain-metastasis-molecular-mechanisms-and-directions-for-treatment
#19
Rute Pedrosa, Dana A Mustafa, Riccardo Soffietti, Johan M Kros
The development of brain metastasis (BM) of breast cancer is usually a late event with deleterious effect on the prognosis. Treatment options for intracerebral seeding of breast cancer are limited and so far, non-specific. Molecular detailing of subsequent events of penetration, seeding and outgrowth in brain is highly relevant for developing therapeutic strategies to treat, or prevent, BM.We scrutinize recent literature for molecules and pathways that are operative in the formation of breast cancer BM. We also summarize current data on therapeutic efforts to specifically address BM of breast cancer...
March 16, 2018: Neuro-oncology
https://www.readbyqxmd.com/read/29557535/the-breast-graded-prognostic-assessment-is-associated-with-the-survival-outcomes-in-breast-cancer-patients-receiving-whole-brain-re-irradiation
#20
Shih-Fan Lai, Yu-Hsuan Chen, Tony Hsiang-Kuang Liang, Che-Yu Hsu, Huang-Chun Lien, Yen-Sen Lu, Chiun-Sheng Huang, Sung-Hsin Kuo
INTRODUCTION: Whole brain (WB) re-irradiation for breast cancer patients with progressive brain metastasis after first-course WB radiotherapy (WBRT) is controversial. In this study, we sought to investigate the association between the molecular sub-classifications and breast-specific Graded Prognostic Assessment (GPA, which includes the Karnofsky performance status, molecular subtypes, and age as its indices) and the outcomes of breast cancer patients who received WB re-irradiation. METHODS: Twenty-three breast cancer patients who received WB re-irradiation for relapsed and progressive intracranial lesions after first-course WBRT between 2004 and 2016 were retrospectively reviewed...
March 20, 2018: Journal of Neuro-oncology
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