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Adrienne Boire

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https://www.readbyqxmd.com/read/27569275/characteristics-and-outcomes-of-patients-with-breast-cancer-with-leptomeningeal-metastasis
#1
Aki Morikawa, Lilly Jordan, Raquel Rozner, Sujata Patil, Adrienne Boire, Elena Pentsova, Andrew D Seidman
BACKGROUND: Disease presentation, prognostic factors, and treatment patterns for patients with breast cancer with leptomeningeal metastasis are not well characterized. In this study, we examined patient characteristics and prognostic factors for survival after a diagnosis of leptomeningeal metastasis. PATIENTS AND METHODS: Three hundred eighteen consecutive patients with breast cancer diagnosed with leptomeningeal metastasis from January 1998 to December 2013 at Memorial Sloan Kettering Cancer Center were identified...
July 25, 2016: Clinical Breast Cancer
https://www.readbyqxmd.com/read/27225120/carcinoma-astrocyte-gap-junctions-promote-brain-metastasis-by-cgamp-transfer
#2
Qing Chen, Adrienne Boire, Xin Jin, Manuel Valiente, Ekrem Emrah Er, Alejandro Lopez-Soto, Leni S Jacob, Ruzeen Patwa, Hardik Shah, Ke Xu, Justin R Cross, Joan Massagué
Brain metastasis represents a substantial source of morbidity and mortality in various cancers, and is characterized by high resistance to chemotherapy. Here we define the role of the most abundant cell type in the brain, the astrocyte, in promoting brain metastasis. We show that human and mouse breast and lung cancer cells express protocadherin 7 (PCDH7), which promotes the assembly of carcinoma-astrocyte gap junctions composed of connexin 43 (Cx43). Once engaged with the astrocyte gap-junctional network, brain metastatic cancer cells use these channels to transfer the second messenger cGAMP to astrocytes, activating the STING pathway and production of inflammatory cytokines such as interferon-α (IFNα) and tumour necrosis factor (TNF)...
May 18, 2016: Nature
https://www.readbyqxmd.com/read/27161972/evaluating-cancer-of-the-central-nervous-system-through-next-generation-sequencing-of-cerebrospinal-fluid
#3
Elena I Pentsova, Ronak H Shah, Jiabin Tang, Adrienne Boire, Daoqi You, Samuel Briggs, Antonio Omuro, Xuling Lin, Martin Fleisher, Christian Grommes, Katherine S Panageas, Fanli Meng, S Duygu Selcuklu, Shahiba Ogilvie, Natalie Distefano, Larisa Shagabayeva, Marc Rosenblum, Lisa M DeAngelis, Agnes Viale, Ingo K Mellinghoff, Michael F Berger
PURPOSE: Cancer spread to the central nervous system (CNS) often is diagnosed late and is unresponsive to therapy. Mechanisms of tumor dissemination and evolution within the CNS are largely unknown because of limited access to tumor tissue. MATERIALS AND METHODS: We sequenced 341 cancer-associated genes in cell-free DNA from cerebrospinal fluid (CSF) obtained through routine lumbar puncture in 53 patients with suspected or known CNS involvement by cancer. RESULTS: We detected high-confidence somatic alterations in 63% (20 of 32) of patients with CNS metastases of solid tumors, 50% (six of 12) of patients with primary brain tumors, and 0% (zero of nine) of patients without CNS involvement by cancer...
July 10, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/23965978/molecular-interactions-in-the-development-of-brain-metastases
#4
REVIEW
Nina Martinez, Adrienne Boire, Lisa M Deangelis
Brain metastases are a much-feared complication of cancer. The development of brain metastases requires a malignant cell to acquire characteristics that facilitate dissemination away from the primary site, entrance into the nervous system, and establishment in the brain. This review summarizes recent work focused on the molecular derangements leading to brain metastases and outlines areas in need of greater understanding.
2013: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/20684780/cardiac-tamponade-mimicking-tuberculous-pericarditis-as-the-initial-presentation-of-chronic-lymphocytic-leukemia-in-a-58-year-old-woman-a-case-report
#5
Elaine Lin, Adrienne Boire, Vagish Hemmige, Aliya N Husain, Matthew Sorrentino, Sandeep Nathan, Shahab A Akhter, Jerome Dickstein, Stephen L Archer
INTRODUCTION: Chronic lymphocytic leukemia is an indolent disease that often presents with complaints of lymphadenopathy or is detected as an incidental laboratory finding. It is rarely considered in the differential diagnosis of patients presenting with tamponade or a large, bloody pericardial effusion. In patients without known cancer, a large, bloody pericardial effusion raises the possibility of tuberculosis, particularly in patients from endemic areas. However, the signs, symptoms and laboratory findings of pericarditis related to chronic lymphocytic leukemia can mimic tuberculosis...
2010: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/20616900/targeted-therapy-in-the-treatment-of-malignant-gliomas
#6
Rimas V Lukas, Adrienne Boire, M Kelly Nicholas
Malignant gliomas are invasive tumors with the potential to progress through current available therapies. These tumors are characterized by a number of abnormalities in molecular signaling that play roles in tumorigenesis, spread, and survival. These pathways are being actively investigated in both the pre-clinical and clinical settings as potential targets in the treatment of malignant gliomas. We will review many of the therapies that target the cancer cell, including the epidermal growth factor receptor, mammalian target of rapamycin, histone deacetylase, and farnesyl transferase...
2009: OncoTargets and Therapy
https://www.readbyqxmd.com/read/19622769/blockade-of-par1-signaling-with-cell-penetrating-pepducins-inhibits-akt-survival-pathways-in-breast-cancer-cells-and-suppresses-tumor-survival-and-metastasis
#7
Eric Yang, Adrienne Boire, Anika Agarwal, Nga Nguyen, Katie O'Callaghan, Powen Tu, Athan Kuliopulos, Lidija Covic
Protease-activated receptor 1 (PAR1) is a G protein-coupled receptor that is not expressed in normal breast epithelia but is up-regulated in invasive breast carcinomas. In the present study, we found that matrix metalloprotease-1 (MMP-1) robustly activates the PAR1-Akt survival pathway in breast carcinoma cells. This process is blocked by a cell-penetrating lipopeptide "pepducin," P1pal-7, which is a potent inhibitor of cell viability in breast carcinoma cells expressing PAR1. Both a MMP-1 inhibitor and P1pal-7 significantly promote apoptosis in breast tumor xenografts and inhibit metastasis to the lungs by up to 88%...
August 1, 2009: Cancer Research
https://www.readbyqxmd.com/read/19379698/platelet-matrix-metalloprotease-1-mediates-thrombogenesis-by-activating-par1-at-a-cryptic-ligand-site
#8
Vishal Trivedi, Adrienne Boire, Boris Tchernychev, Nicole C Kaneider, Andrew J Leger, Katie O'Callaghan, Lidija Covic, Athan Kuliopulos
Matrix metalloproteases (MMPs) play important roles in normal and pathological remodeling processes including atherothrombotic disease, inflammation, angiogenesis, and cancer. MMPs have been viewed as matrix-degrading enzymes, but recent studies have shown that they possess direct signaling capabilities. Platelets harbor several MMPs that modulate hemostatic function and platelet survival; however their mode of action remains unknown. We show that platelet MMP-1 activates protease-activated receptor-1 (PAR1) on the surface of platelets...
April 17, 2009: Cell
https://www.readbyqxmd.com/read/18076315/emerging-therapies-for-malignant-glioma
#9
REVIEW
Rimas V Lukas, Adrienne Boire, M Kelly Nicholas
The current standard of care for malignant gliomas consists of surgery, radiotherapy and conventional (DNA-damaging) chemotherapies. These treatments are relatively nonspecific and may be applied to all glioma subtypes. Developments in cancer medicine, however, now offer the opportunity to direct therapies to specific molecular pathways involved in tumorigenesis. This offers the potential to tailor treatments to tumor subtypes--perhaps with greater efficacy and less toxicity. Many of the so-called targeted therapies are under investigation in the treatment of malignant glioma...
December 2007: Expert Review of Anticancer Therapy
https://www.readbyqxmd.com/read/17693400/site-specific-effects-of-peptide-lipidation-on-beta-amyloid-aggregation-and-cytotoxicity
#10
Isam M Qahwash, Adrienne Boire, Jennifer Lanning, Thomas Krausz, Peter Pytel, Stephen C Meredith
Beta-amyloid (Abeta) aggregates at low concentrations in vivo, and this may involve covalently modified forms of these peptides. Modification of Abeta by 4-hydroxynonenal (4-HNE) initially increases the hydrophobicity of these peptides and subsequently leads to additional reactions, such as peptide cross-linking. To model these initial events, without confounding effects of subsequent reactions, we modified Abeta at each of its amino groups using a chemically simpler, close analogue of 4-HNE, the octanoyl group: K16-octanoic acid (OA)-Abeta, K28-OA-Abeta, and Nalpha-OA-Abeta...
December 21, 2007: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/16878983/spatial-separation-of-beta-sheet-domains-of-beta-amyloid-disruption-of-each-beta-sheet-by-n-methyl-amino-acids
#11
Kimberly L Sciarretta, Adrienne Boire, David J Gordon, Stephen C Meredith
In a recent model of beta-amyloid (Abeta) fibrils, based mainly on solid-state NMR data, a molecular layer consists of two beta-sheets (residues 12-23 and 31-40 of Abeta1-40), folded onto one another by a connecting "bend" structure (residues 25-29) in the side-chain dimension. In this paper, we use two N-methyl amino acids to disrupt each of the two beta-sheets individually (2NMe(NTerm), residues 17 and 19; and 2NMe(CTerm), residues 37 and 39), or both of them at the same time (4NMe, with the above four N-methylated residues)...
August 8, 2006: Biochemistry
https://www.readbyqxmd.com/read/15707890/par1-is-a-matrix-metalloprotease-1-receptor-that-promotes-invasion-and-tumorigenesis-of-breast-cancer-cells
#12
Adrienne Boire, Lidija Covic, Anika Agarwal, Suzanne Jacques, Sheida Sherifi, Athan Kuliopulos
Protease-activated receptors (PARs) are a unique class of G protein-coupled receptors that play critical roles in thrombosis, inflammation, and vascular biology. PAR1 is proposed to be involved in the invasive and metastatic processes of various cancers. However, the protease responsible for activating the proinvasive functions of PAR1 remains to be identified. Here, we show that expression of PAR1 is both required and sufficient to promote growth and invasion of breast carcinoma cells in a xenograft model...
February 11, 2005: Cell
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