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Muc1 breast cancer

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https://www.readbyqxmd.com/read/28528509/invasive-lobular-carcinoma-with-extracellular-mucin-production-a-novel-pattern-of-lobular-carcinomas-of-the-breast-clinico-pathological-description-of-eight-cases
#1
Gábor Cserni, Giuseppe Floris, Nektarios Koufopoulos, Anikó Kovács, Afroditi Nonni, Peter Regitnig, Anders Stahls, Zsuzsanna Varga
Invasive lobular carcinoma of the breast is known to produce intracellular mucin and has been recognized in single-case reports to show extracellular mucin production, as well. This latter morphology is not only rare but must also be under- or misdiagnosed. The aim was to better characterize this entity. Cases of lobular cancers demonstrating extracellular mucin formation were identified in a multi-institutional effort and their clinical and morphologic features were assessed. Immunohistochemistry was used to characterize the E-cadherin-membrane complex, neuroendocrine differentiation, and to some extent, mucin formation...
May 20, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28522938/mucin-1-antibody-conjugated-mesoporous-silica-nanoparticles-for-selective-breast-cancer-detection-in-a-mucin-1-transgenic-murine-mouse-model
#2
Didier Dréau, Laura Jeffords Moore, Merlis P Alvarez-Berrios, Mubin Tarannum, Pinku Mukherjee, Juan L Vivero-Escoto
Mucin-1 (MUC1), a transmembrane glycoprotein is aberrantly expressed on ~90% of breast cancer and is an excellent target for nanoparticulate targeted imaging. In this study, the development of a dye-doped NIR emitting mesoporous silica nanoparticles platform conjugated to tumor-specific MUC1 antibody (ab-tMUC1-NIR-MSN) for in vivo optical detection of breast adenocarcinoma tissue is reported. The structural properties, the in vitro and in vivo performance of this nanoparticle-based probe were evaluated. In vitro studies showed that the MSN-based optical imaging nanoprobe is non-cytotoxic and targets efficiently mammary cancer cells overexpressing human tMUC1 protein...
December 2016: Journal of Biomedical Nanotechnology
https://www.readbyqxmd.com/read/28495579/a-new-chemotherapy-agent-free-theranostic-system-composed-of-graphene-oxide-nano-complex-and-aptamers-for-treatment-of-cancer-cells
#3
Amirhossein Bahreyni, Rezvan Yazdian-Robati, Shirin Hashemitabar, Mohammad Ramezani, Pouria Ramezani, Khalil Abnous, Seyed Mohammad Taghdisi
The common cancer treatment strategies like chemotherapy and radiotherapy are nonspecific and can trigger severe side effects by damaging normal cells. So, targeted cancer therapies, such as apoptosis induction, have attracted great attention in recent years. In this project, two nano-complexes, MUC1 aptamer-NAS-24 aptamer-Graphene oxide (GO) and MUC1 aptamer-Cytochrome C aptamer-GO, were designed to induce cell programmed death in MDA-MB-231 and MCF-7 cells (breast cancer cell lines) and to verify the level of apoptosis in both cell lines...
May 8, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28464016/muc1-facilitates-metabolomic-reprogramming-in-triple-negative-breast-cancer
#4
Gennifer Goode, Venugopal Gunda, Nina V Chaika, Vinee Purohit, Fang Yu, Pankaj K Singh
BACKGROUND: Mucin1 (MUC1), a glycoprotein associated with chemoresistance and an aggressive cancer phenotype, is aberrantly overexpressed in triple-negative breast cancer (TNBC). Recent studies suggest that MUC1 plays a role in modulating cancer cell metabolism and thereby supports tumor growth. Herein, we examined the role of MUC1 in metabolic reprogramming in TNBC. METHODS: MUC1 was stably overexpressed in MDA-MB-231 TNBC cells and stably knocked down in MDA-MB-468 cells...
2017: PloS One
https://www.readbyqxmd.com/read/28451462/pulmonary-adenocarcinoma-with-mucin-production-modulates-phenotype-according-to-common-genetic-traits-a-reappraisal-of-mucinous-adenocarcinoma-and-colloid-adenocarcinoma
#5
Angelica Sonzogni, Fabrizio Bianchi, Alessandra Fabbri, Mara Cossa, Giulio Rossi, Alberto Cavazza, Elena Tamborini, Federica Perrone, Adele Busico, Iolanda Capone, Benedetta Picciani, Barbara Valeri, Ugo Pastorino, Giuseppe Pelosi
Whether invasive mucinous adenocarcinoma (IMA) and colloid adenocarcinoma (ICA) of the lung represent separate tumour entities, or simply lie within a spectrum of phenotypic variability, is worth investigating. Fifteen ICA, 12 IMA, 9 ALK-rearranged adenocarcinomas (ALKA), 8 non-mucinous KRAS-mutated adenocarcinomas (KRASA) and 9 mucinous breast adenocarcinomas (MBA) were assessed by immunohistochemistry for alveolar (TTF1, cytoplasmic MUC1), intestinal (CDX-2, MUC2), gastric (membrane MUC1, MUC6), bronchial (MUC5AC), mesenchymal (vimentin), neuroendocrine (chromogranin A, synaptophysin), sex steroid hormone-related (oestrogen and progesterone receptors), pan-mucinous (HNF4A) and pan-epithelial (keratin 7) lineage biomarkers and by targeted next generation sequencing (TNGS) for 50 recurrently altered cancer genes...
April 2017: Journal of Pathology. Clinical Research
https://www.readbyqxmd.com/read/28450780/new-generation-of-electrochemical-immunoassay-based-on-polymeric-nanoparticles-for-early-detection-of-breast-cancer
#6
Fouzi Mouffouk, Sihem Aouabdi, Entesar Al-Hetlani, Hacene Serrai, Tareq Alrefae, Liaohai Leo Chen
Screening and early diagnosis are the key factors for the reduction of mortality rate and treatment cost of cancer. Therefore, sensitive and selective methods that can reveal the low abundance of cancer biomarkers in a biological sample are always desired. Here, we report the development of a novel electrochemical biosensor for early detection of breast cancer by using bioconjugated self-assembled pH-responsive polymeric micelles. The micelles were loaded with ferrocene molecules as "tracers" to specifically target cell surface-associated epithelial mucin (MUC1), a biomarker for breast and other solid carcinoma...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28447743/binding-of-circulating-anti-muc1-antibody-and-serum-muc1-antigen-in-stage-iv-breast-cancer
#7
Yan Tang, Xiuxia Cui, Han Xiao, Shengkun Qi, Xiaoping Hu, Qiong Yu, Guang Shi, Xue Zhang, Jiaying Gu, Yongli Yu, Liying Wang, Yarong Li
The present study aimed to investigate the binding of circulating mucin 1 (MUC1) antibody with serum MUC1 antigen in stage IV breast cancer. Serum samples of 61 patients with stage IV breast cancer and 64 patients with early-stage breast cancer were collected. The anti‑MUC1 antibody (IgG) and MUC1 antigen (cancer antigen 15‑3; Ca15‑3) were detected using an indirect enzyme-linked immunosorbent assay (I‑ELISA) and ELISA, respectively. The MUC1 IgG affinity was detected using a urea degradation combining ELISA...
May 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28440596/immunogenicity-of-a-fully-synthetic-muc1-glycopeptide-antitumor-vaccine-enhanced-by-poly-i-c-as-a-tlr3-activating-adjuvant
#8
Markus Glaffig, Natascha Stergiou, Edgar Schmitt, Horst Kunz
Fully synthetic MUC1 glycopeptide antitumor vaccines have a precisely specified structure and induce a targeted immune response without suppression of the immune response when using an immunogenic carrier protein. However, tumor-associated aberrantly glycosylated MUC1 glycopeptides are endogenous structures, "self-antigens", that exhibit only low immunogenicity. To overcome this obstacle, a fully synthetic MUC1 glycopeptide antitumor vaccine was combined with poly(inosinic acid:cytidylic acid), poly(I:C), as a structurally defined Toll-like receptor 3 (TLR3)-activating adjuvant...
May 22, 2017: ChemMedChem
https://www.readbyqxmd.com/read/28414807/interactions-between-the-breast-cancer-associated-muc1-mucins-and-c-type-lectin-characterized-by-optical-tweezers
#9
Soosan Hadjialirezaei, Gianfranco Picco, Richard Beatson, Joy Burchell, Bjørn Torger Stokke, Marit Sletmoen
Carbohydrate-protein interactions govern many crucial processes in biological systems including cell recognition events. We have used the sensitive force probe optical tweezers to quantify the interactions occurring between MGL lectins and MUC1 carrying the cancer-associated glycan antigens mucins Tn and STn. Unbinding forces of 7.6 pN and 7.1 pN were determined for the MUC1(Tn)-MGL and MUC1(STn)-MGL interactions, at a force loading rate of ~40 pN/s. The interaction strength increased with increasing force loading rate, to 27 and 37 pN at a force loading rate of ~ 310 pN/s...
2017: PloS One
https://www.readbyqxmd.com/read/28412238/chitosan-modified-plga-nanoparticles-tagged-with-5tr1-aptamer-for%C3%A2-in%C3%A2-vivo-tumor-targeted-drug-delivery
#10
Sahar Taghavi, Mohammad Ramezani, Mona Alibolandi, Khalil Abnous, Seyed Mohammad Taghdisi
In this study, we reported epirubicin (Epi) encapsulated nanoparticles (NPs) formulated with biocompatible and biodegradable poly (lactic-co-glycolic acid) (PLGA) modified with chitosan (CS) through a physical adsorption method. Using chitosan, the solubility and surface charge of PLGA was modified to make efficient drug carriers for cancer cells. To improve the anti-tumor efficacy, we developed targeted therapy of tumor cells using a 5TR1 DNA aptamer (Apt) against the MUC1 receptor. To prove the MUC1 receptor-mediated uptake of Epi-PLGA-CS-Apt NPs in the cells, competition experiments were carried out...
April 13, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28211299/comparison-of-biodistribution-profile-of-monoclonal-antibodies-nanoparticles-and-aptamers-in-rats-with-breast-cancer
#11
COMPARATIVE STUDY
Cristal Cerqueira-Coutinho, Sotiris Missailidis, Jéssica Alessandra-Perini, Daniel Escorsim Machado, Jamila Alessandra Perini, Ralph Santos-Oliveira
The use of monoclonal antibodies and aptamers is growing every single day, as the use of nanoparticle systems. Although most of the products are under investigation, there are a few commercialized products available at the market, for human consume. In this study, we have compared three formulations (aptamer anti-MUC1, monoclonal antibody - Trastuzumab and monoclonal antibodies nanoparticles - PLA/PVA/MMT trastuzumab) to identify their profile as also to understand their behavior into an alive biological system...
May 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28171795/multifunctional-silver-nanocluster-hybrid-oligonucleotide-vehicle-for-cell-imaging-and-microrna-targeted-gene-silencing
#12
Hau-Yun Chen, Karunya Albert, Cheng-Che Wen, Pei-Ying Hsieh, Sih-Yu Chen, Nei-Chung Huang, Shen-Chuan Lo, Jen-Kun Chen, Hsin-Yun Hsu
Novel therapeutics is urgently needed to prevent cancer-related deaths. MicroRNAs that act as tumor suppressors have been recognized as a next-generation tumor therapy, and the restoration of tumor-suppressive microRNAs using microRNA replacements or mimics may be a less toxic, more effective strategy due to fewer off-target effects. Here, we designed the novel multifunctional oligonucleotide nanocarrier complex composed of a tumor-targeting aptamer sequence specific to mucin 1 (MUC1), poly-cytosine region for fluorescent silver nanocluster (AgNC) synthesis, and complimentary sequence for microRNA miR-34a loading...
April 1, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28053523/anti-muc1-nano-aptamers-for-triple-negative-breast-cancer-imaging-by-single-photon-emission-computed-tomography-in-inducted-animals-initial-considerations
#13
Fagner Santos do Carmo, Eduardo Ricci-Junior, Cristal Cerqueira-Coutinho, Marta de Souza Albernaz, Emerson Soares Bernardes, Sotiris Missailidis, Ralph Santos-Oliveira
The early and specific detection of tumors remains a barrier in oncology, especially in cases such as the triple-negative breast cancer (TNBC). To address this gap, aptamers have found an important application in the recognition of tumor biomarkers such as mucin 1 (MUC1). However, there are still some difficulties in the use of aptamer, as their rapid biological clearance makes their use as drugs limited. In this study, the anti-MUC1 aptamer was used as a drug delivery system (DDS) for a radioactive polymeric nanoparticle (NP) in the imaging of TNBCs...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/27974697/surrogate-in-vitro-activation-of-innate-immunity-synergizes-with-interleukin-7-to-unleash-rapid-antigen-driven-outgrowth-of-cd4-and-cd8-human-peripheral-blood-t-cells-naturally-recognizing-muc1-her2-neu-and-other-tumor-associated-antigens
#14
Latha B Pathangey, Dustin B McCurry, Sandra J Gendler, Ana L Dominguez, Jessica E Gorman, Girish Pathangey, Laurie A Mihalik, Yushe Dang, Mary L Disis, Peter A Cohen
Effective adoptive immunotherapy has proved elusive for many types of human cancer, often due to difficulties achieving robust expansion of natural tumor-specific T-cells from peripheral blood. We hypothesized that antigen-driven T-cell expansion might best be triggered in vitro by acute activation of innate immunity to mimic a life-threatening infection. Unfractionated peripheral blood mononuclear cells (PBMC) were subjected to a two-step culture, first synchronizing their exposure to exogenous antigens with aggressive surrogate activation of innate immunity, followed by γ-chain cytokine-modulated T-cell hyperexpansion...
February 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/27893710/muc1-c-activates-bmi1-in-human-cancer-cells
#15
M Hiraki, T Maeda, A Bouillez, M Alam, A Tagde, K Hinohara, Y Suzuki, T Markert, M Miyo, K Komura, R Ahmad, H Rajabi, D Kufe
B-cell-specific Moloney murine leukemia virus integration site 1 (BMI1) is a component of the polycomb repressive complex 1 (PRC1) complex that is overexpressed in breast and other cancers, and promotes self-renewal of cancer stem-like cells. The oncogenic mucin 1 (MUC1) C-terminal (MUC1-C) subunit is similarly overexpressed in human carcinoma cells and has been linked to their self-renewal. There is no known relationship between MUC1-C and BMI1 in cancer. The present studies demonstrate that MUC1-C drives BMI1 transcription by a MYC-dependent mechanism in breast and other cancer cells...
May 18, 2017: Oncogene
https://www.readbyqxmd.com/read/27846863/prognostic-significance-of-mucin-expression-profiles-in-breast-carcinoma-with-signet-ring-cells-a-clinicopathological-study
#16
Ryuji Ohashi, Ayako Hayama, Keiko Yanagihara, Koji Yamashita, Takashi Sakatani, Hiroyuki Takei, Zenya Naito
BACKGROUND: Signet ring cells (SRCs) often accompany gastrointestinal carcinoma, referred to as SRC carcinoma; however, breast cancers containing SRCs have not been well characterized, leaving the prognostic significance of SRCs undetermined. We have described clinicopathological characteristics of patients with breast cancer containing SRCs in relation to the expression levels of MUC1, MUC2, MUC4, MUC5AC, and MUC6. METHODS: Twenty-two breast cancer cases with variable degrees of SRC population were retrospectively studied...
November 15, 2016: Diagnostic Pathology
https://www.readbyqxmd.com/read/27832451/expression-data-analysis-for-the-identification-of-potential-biomarker-of-pregnancy-associated-breast-cancer
#17
Raja Rajeswary Thanmalagan, Leimarembi Devi Naorem, Amouda Venkatesan
Breast cancer affects every 1 of 3000 pregnant women or in the first post-partum year is referred as Pregnancy Associated Breast Cancer (PABC) in mid 30s. Even-though rare disease, classified under hormone receptor negative status which metastasis quickly to other parts by extra cellular matrix degradation. Hence it is important to find an optimal treatment option for a PABC patient. Also additional care should be taken to choose the drug; in order to avoid fetal malformation and post-partum stage side-effects...
November 10, 2016: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/27809866/evidence-of-two-distinct-functionally-specialized-fibroblast-lineages-in-breast-stroma
#18
Mikkel Morsing, Marie Christine Klitgaard, Abbas Jafari, René Villadsen, Moustapha Kassem, Ole William Petersen, Lone Rønnov-Jessen
BACKGROUND: The terminal duct lobular unit (TDLU) is the most dynamic structure in the human breast and the putative site of origin of human breast cancer. Although stromal cells contribute to a specialized microenvironment in many organs, this component remains largely understudied in the human breast. We here demonstrate the impact on epithelium of two lineages of breast stromal fibroblasts, one of which accumulates in the TDLU while the other resides outside the TDLU in the interlobular stroma...
November 3, 2016: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/27802205/the-role-of-molecular-biomarkers-for-predicting-adjacent-breast-cancer-of-atypical-ductal-hyperplasia-diagnosed-on-core-biopsy
#19
Ayfer Kamali Polat, Atilla Soran, Amal Kanbour-Shakir, Ebru Menekse, Fatih Levent Balci, Ronald Johnson
BACKGROUND: Atypical Ductal Hyperplasia (ADH) is a disease of the proliferative breast lesion characterized with atypia and when diagnosed on core needle biopsy (CNB), excisional biopsy is the current management to exclude adjacent cancer, which may found 10 to 20%. OBJECTIVE: The purpose of the study is to investigate the role of biomarkers on surgical decision after the diagnosis of ADH on CNB. METHODS: Patients with pure ADH on core biopsy were retrospectively selected, and categorized according to final pathology after excision into three groups: Group I (n: 39) ADH; Group II (n: 27) ductal carcinoma in situ (DCIS), and Group III (n: 9) invasive cancer (IC)...
September 26, 2016: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/27787640/peripheral-t-cell-responses-to-tumour-antigens-are-associated-with-molecular-immunogenetic-and-cellular-features-of-breast-cancer-patients
#20
Nicole Janssen, Sotirios P Fortis, Lisa Speigl, Christoforos Haritos, Nectaria N Sotiriadou, Michael Sofopoulos, Niki Arnogiannaki, Catherine Stavropoulos-Giokas, Amalia Dinou, Sonia Perez, Graham Pawelec, Constantin N Baxevanis, Christopher Shipp
PURPOSE: Breast cancer is a leading cause of cancer deaths in women, but despite steady improvements in therapies, treatment is still suboptimal. Immunotherapy holds promise as a more effective therapy for breast cancer; supporting this, our prior study showed that patients possessing HER2-reactive CD8+ T cells in blood experience survival superior to patients without these cells. Here, we define a composite set of biomarkers that identify patients with T cell responses to tumour antigens...
January 2017: Breast Cancer Research and Treatment
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