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https://www.readbyqxmd.com/read/28929449/concordance-analysis-of-paired-cancer-antigen-ca-15-3-and-27-29-testing
#1
David C Lin, Jonathan R Genzen
PURPOSE: Cancer antigens (CA) 15-3 and 27.29 are used in the clinical management of many breast cancer patients. Given that immunoassays for CA 15-3 and CA 27.29 target epitopes on the same glycoprotein-Mucin 1 (MUC1)-the present analysis was conducted to evaluate the potential concordance of tumor marker results when both tests were ordered by providers on the same specimens. METHODS: A retrospective limited dataset of paired CA 15-3 (Roche Diagnostics) and CA 27...
September 19, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28915583/n-acetylcysteine-breaks-resistance-to-trastuzumab-caused-by-muc4-overexpression-in-human-her2-positive-bc-bearing-nude-mice-monitored-by-89-zr-trastuzumab-and-18-f-fdg-pet-imaging
#2
Zéna Wimana, Geraldine Gebhart, Thomas Guiot, Bruno Vanderlinden, Denis Larsimont, Gilles Doumont, Gaetan Van Simaeys, Serge Goldman, Patrick Flamen, Ghanem Ghanem
Trastuzumab remains an important drug in the management of human epidermal growth factor receptor 2 (HER2) overexpressing breast cancer (BC). Several studies reported resistance mechanisms to trastuzumab, including impaired HER2-accessibility caused by mucin 4 (MUC4). Previously, we demonstrated an increase of Zirconium-89-radiolabeled-trastuzumab ((89)Zr-Trastuzumab) accumulation when MUC4-overexpressing BC-cells were challenged with the mucolytic drug N-Acetylcysteine (NAC). Hereby, using the same approach we investigated whether tumor exposure to NAC would also enhance trastuzumab-efficacy...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28894966/targeting-cancer-specific-glycans-by-cyclic-peptide-lectinomimics
#3
Maria C Rodriguez, Austin B Yongye, Mihael Cudic, Karina Martinez Mayorga, Enbo Liu, Barbara M Mueller, Jon Ainsley, Tatyana Karabencheva-Christova, Christo Z Christov, Mare Cudic, Predrag Cudic
The transformation from normal to malignant phenotype in human cancers is associated with aberrant cell-surface glycosylation. Thus, targeting glycosylation changes in cancer is likely to provide not only better insight into the roles of carbohydrates in biological systems, but also facilitate the development of new molecular probes for bioanalytical and biomedical applications. In the reported study, we have synthesized lectinomimics based on odorranalectin 1; the smallest lectin-like cyclic peptide isolated from the frog Odorrana grahami skin, and assessed the ability of these peptides to bind specific carbohydrates on molecular and cellular levels...
September 11, 2017: Amino Acids
https://www.readbyqxmd.com/read/28892049/membrane-mucin-muc4-promotes-blood-cell-association-with-tumor-cells-and-mediates-efficient-metastasis-in-a-mouse-model-of-breast-cancer
#4
A R Rowson-Hodel, J H Wald, J Hatakeyama, W K O'Neal, J R Stonebraker, K VanderVorst, M J Saldana, A D Borowsky, C Sweeney, K L Carraway
Mucin-4 (Muc4) is a large cell surface glycoprotein implicated in the protection and lubrication of epithelial structures. Previous studies suggest that aberrantly expressed Muc4 can influence the adhesiveness, proliferation, viability and invasiveness of cultured tumor cells, as well as the growth rate and metastatic efficiency of xenografted tumors. Although it has been suggested that one of the major mechanisms by which Muc4 potentiates tumor progression is via its engagement of the ErbB2/HER2 receptor tyrosine kinase, other mechanisms exist and remain to be delineated...
September 11, 2017: Oncogene
https://www.readbyqxmd.com/read/28877837/clinical-diagnosis-and-treatment-of-male-breast-cancer-analysis-of-24-cases
#5
Yu-Qian Zhang, Hai-Yan Zhao, Qiang Sun, Feng Mao, Yi-Dong Zhou, Jing-Min Zhou
Objective To summarize our experiences in the clinical diagnosis and treatment of male breast cancer(MBC).Methods The clinical date of 24 MBC patients treated in our hospital from January 2006 to December 2012 were retrospective analyzed.Results The average age of these 24 patients was(55.7±2.1) years.All the patients received surgical treatment,and the surgical procedures were simple excision of breast lesion in 6 patients,breast resection alone in 5 patients,and modified radical mastectomy in 13 patients(bilateral in 1 case)...
August 20, 2017: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/28855989/t-cell-immunoglobulin-mucin-3-expression-in-invasive-ductal-breast-carcinoma-clinicopathological-correlations-and-association-with-tumor-infiltration-by-cytotoxic-lymphocytes
#6
Huan Zhang, Rong Xiang, Bin Wu, Jinlong Li, Guilin Luo
As a negative regulatory molecule, T-cell immunoglobulin and mucin domain-3 (Tim-3) is closely associated with tumor immunological tolerance. The aim of this study was to investigate Tim-3 expression in invasive ductal breast cancer (IDC), its effect on clinicopathological parameters and its association with cytotoxic lymphocyte infiltration. Tim-3 protein expression was measured in 150 paraffin-embedded IDC specimens and 100 paired normal breast tissue specimens by immunohistochemistry. It was demonstrated that the infiltration of the tumor by CD8(+) T cells was significantly higher compared with that of normal tissue, and the Tim-3 expression on CD8(+) T cells was higher in IDC tissue compared with that in normal tissue; the differences were statistically significant (both P-values=0...
October 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28842375/muc1-aptamer-capped-mesoporous-silica-nanoparticles-for-controlled-drug-delivery-and-radio-imaging-applications
#7
Lluis Pascual, Cristal Cerqueira-Coutinho, Alba García-Fernández, Beatriz de Luis, Emerson Soares Bernardes, Marta Souza Albernaz, Sotiris Missailidis, Ramón Martínez-Máñez, Ralph Santos-Oliveira, Mar Orzaez, Félix Sancenón
Mucin 1 (MUC1) is a cell surface protein overexpressed in breast cancer. Mesoporous silica nanoparticles (MSNs) loaded with safranin O, functionalized with aminopropyl groups and gated with the negatively charged MUC1 aptamer have been prepared (S1-apMUC1) for specific targeting and cargo release in tumoral versus non-tumoral cells. Confocal microscopy studies showed that the S1-apMUC1 nanoparticles were internalized in MDA-MB-231 breast cancer cells that overexpress MUC1 receptor with subsequent pore opening and cargo release...
August 24, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28817726/evaluation-of-peptide-designing-strategy-against-subunit-reassociation-in-mucin-1-a-steered-molecular-dynamics-approach
#8
J Lesitha Jeeva Kumari, R Jesu Jaya Sudan, C Sudandiradoss
Subunit reassociation in mucin 1, a breast cancer tumor marker, is reported as one of the critical factors for its cytoplasmic activation. Inhibition of its heterodimeric association would therefore result in loss of its function and alter disease progression. The present study aimed at evaluating peptide inhibitor designing strategies that may serve as antagonist against this receptor-ligand alliance. Several peptides and their derivatives were designed based on native residues, subunit interface, hydrogen bonding and secondary structure...
2017: PloS One
https://www.readbyqxmd.com/read/28807345/ampk-expression-patterns-are-significantly-associated-with-poor-prognosis-in-breast-cancer-patients
#9
Jaudah Al-Maghrabi, Kaltoom Al-Sakkaf, Imtiaz Ahmad Qureshi, Nadeem Shafique Butt, Lila Damnhory, Mohamed Elshal, Basim Al-Maghrabi, Alia Aldahlawi, Sawsan Ashoor, Barry Brown, Pauline Dobson, Mohamad Nidal Khabaz
Many investigators have examined the functions of AMP-activated protein kinase (AMPK) in cancer biology and its anti-neoplastic features in cancer models. The goal of this research is to assess the association of the immunohistochemical expression of AMPK in human mammary tumours with the clinical data of breast cancer patients. 449 cases of previously diagnosed breast cancer, and 27 tissue samples of fibroadenomas and normal breast were utilized for detection of AMPK expression using tissue microarrays and immunohistochemistry...
August 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28803352/breast-cancer-in-elderly-women-and-altered-clinico-pathological-characteristics-a-systematic-review
#10
REVIEW
M Lodi, L Scheer, N Reix, D Heitz, A-J Carin, N Thiébaut, K Neuberger, C Tomasetto, C Mathelin
PURPOSE: Breast cancer is the most common malignancy in women in terms of incidence and mortality. Age is undoubtedly the biggest breast cancer risk factor. In this study we examined clinical, histological, and biological characteristics and mortality of breast cancer in elderly women along with their changes with advancing age. METHODS: We reviewed 63 original articles published between 2006 and 2016 concerning women over 70 years with breast cancer. RESULTS: Compared to patients 70-79 years, patients aged 80 and over had larger tumor size with fewer T1 (42...
August 12, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28753591/mucinous-carcinoma-of-the-breast-a-case-report-and-review-of-the-literature
#11
Jorge Luna-Abanto, Grivette Mendoza Tisoc
Mucinous carcinoma of the breast is a rare histological type, which represents between 1 and 4% of breast cancers. Treatment does not differ from other histological types, and it occurs more frequently in older adult women. Prognosis is good. We report the case of a 72-year-old patient with a 1-year disease course characterized by the appearance of a slow-growing tumor in the left upper quadrant of the left breast, in which the core biopsy showed mucinous breast carcinoma of a low nuclear grade. The patient underwent quadrantectomy plus a sentinel node biopsy, which confirmed the initial diagnosis...
July 27, 2017: Medwave
https://www.readbyqxmd.com/read/28731466/interaction-of-galectin-3-with-muc1-on-cell-surface-promotes-egfr-dimerization-and-activation-in-human-epithelial-cancer-cells
#12
Tushar Piyush, Anisha R Chacko, Paulina Sindrewicz, John Hilkens, Jonathan M Rhodes, Lu-Gang Yu
Epidermal growth factor receptor (EGFR) is an important regulator of epithelial cell growth and survival in normal and cancerous tissues and is a principal therapeutic target for cancer treatment. EGFR is associated in epithelial cells with the heavily glycosylated transmembrane mucin protein MUC1, a natural ligand of galectin-3 that is overexpressed in cancer. This study reveals that the expression of cell surface MUC1 is a critical enhancer of EGF-induced EGFR activation in human breast and colon cancer cells...
July 21, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28730323/the-pathogenesis-diagnosis-and-management-of-metastatic-tumors-to-the-ovary-a-comprehensive-review
#13
REVIEW
Ondřej Kubeček, Jan Laco, Jiří Špaček, Jiří Petera, Jindřich Kopecký, Alena Kubečková, Stanislav Filip
Secondary tumors of the ovary account for 10-25% of all ovarian malignancies. The most common tumors that give rise to ovarian metastases include breast, colorectal, endometrial, stomach, and appendix cancer. The correct diagnosis of secondary ovarian tumors may be challenging as they are not infrequently misdiagnosed as primary ovarian cancer, particularly in the case of mucinous adenocarcinomas. The distinction from the latter is essential, as it requires different treatment. Immunohistochemistry plays an important role in distinguishing primary ovarian tumors from extra-ovarian metastases and, furthermore, may suggest the primary tumor site...
July 20, 2017: Clinical & Experimental Metastasis
https://www.readbyqxmd.com/read/28702779/clinicopathological-characteristics-of-fallopian-tube-metastases-from-primary-endometrial-cervical-and-nongynecological-malignancies-a-single-institutional-experience
#14
Kiyong Na, Hyun-Soo Kim
This study was aimed at investigating the clinicopathological characteristics of tubal metastases originating from primary endometrial, cervical, and nongynecological malignancies. We performed a 4-year retrospective study in which fallopian tube tissues obtained from 60 patients with tubal metastases were examined. In addition, we compared the number of tubal metastasis cases detected during periods of representative or whole tubal sampling. Twenty-three and 37 tubal metastases were found in cases examined after representative and whole tubal sampling techniques, respectively...
July 13, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28618938/laboratory-validation-of-formal-concept-analysis-of-the-methylation-status-of-microarray-detected-genes-in-primary-breast-cancer
#15
Samar K Kassim, Hanan H Shehata, Marwa M Abou-Alhussein, Maha M Sallam, Islam Ibrahim Amin
Breast cancer is the leading cause of cancer-related mortality. DNA methylations play important roles in cancer development and progression. Formal concept analysis was previously utilized for data mining hypermethylated and hypomethylated genes in breast cancer molecular subtypes in illumina methylation-based microarray database, to laboratory validate their outputs; HS3ST2 (heparan sulfate d-glucosaminyl 3-O-sulfonyl transferase-2) and MUC1 (mucin-1) were retrieved. Both play important roles in progression and invasion of breast cancer...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28603824/mucinous-breast-carcinoma-a-rare-entity-to-be-known-clinico-pathological-study-of-48-cases
#16
Olfa El Amine El Hadj, Malek Ayadi, Aida Goucha, Jameleddine Ben Hassouna, Khaled Rahal, Ahmed El May, Amor Gamoudi
BACKGROUND: Mucinous carcinoma is a particular type of breast cancer characterized by the presence of extracellular mucin and is linked with a more favorable prognosis than invasive breast carcinoma of no special type. It accounts for 1 to 7% of all breast cancers. We propose in this work to study at first the clinic-pathological characteristics and the evolution of 48 cases of mucinous carcinomas. Secondly, we propose to identify through a review of recent literature, the therapeutic management of these carcinomas...
August 2016: La Tunisie Médicale
https://www.readbyqxmd.com/read/28597867/prognostic-significance-of-a-micropapillary-pattern-in-pure-mucinous-carcinoma-of-the-breast-comparative-analysis-with-micropapillary-carcinoma
#17
Hyun-Jung Kim, Kyeongmee Park, Jung Yeon Kim, Guhyun Kang, Geumhee Gwak, Inseok Park
BACKGROUND: Mucinous carcinoma of the breast is an indolent tumors with a favorable prognosis; however, micropapillary features tend to lead to aggressive behavior. Thus, mucinous carcinoma and micropapillary carcinoma exhibit contrasting biologic behaviors. Here, we review invasive mucinous carcinoma with a focus on micropapillary features and correlations with clinicopathological factors. METHODS: A total of 64 patients with invasive breast cancer with mucinous or micropapillary features were enrolled in the study...
July 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28597750/muc1-induces-tamoxifen-resistance-in-estrogen-receptor-positive-breast-cancer
#18
REVIEW
Parnaz Merikhian, Reyhane Ghadirian, Leila Farahmand, Sepideh Mansouri, Keivan Majidzadeh-A
Tamoxifen, as an essential therapeutic tool in the treatment of estrogen receptor-positive breast cancer, has been available for the past three decades and is currently being utilized as a chemo-preventive agent for patients at high risk for breast carcinoma. However, the induction of chemo-resistance during therapy has indicated a significant challenge with regards to this agent. Areas covered: This review enumerates the role of MUC1-C proto-oncogene in tamoxifen resistance and describes a number of signaling pathways by which MUC1-C would mediate the development of resistance...
July 2017: Expert Review of Anticancer Therapy
https://www.readbyqxmd.com/read/28583624/higher-breast-cancer-conspicuity-on-dbpet-compared-to-wb-pet-ct
#19
Kayo Nishimatsu, Yuji Nakamoto, Kanae K Miyake, Takayoshi Ishimori, Shotaro Kanao, Masakazu Toi, Kaori Togashi
OBJECTIVES: The purpose of this study was to evaluate lesion detectability of a dedicated breast positron-emission tomography (dbPET) scanner for breast cancers with an updated reconstruction mode, comparing it to whole-body positron-emission tomography/computed tomography (WB-PET/CT). MATERIALS AND METHODS: A total of 179 histologically-proven breast cancer lesions in 150 females who underwent both WB-PET/CT and dbPET with (18)F-fluorodeoxyglucose were retrospectively analyzed...
May 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28577081/the-21-gene-recurrence-score-in-special-histologic-subtypes-of-breast-cancer-with-favorable-prognosis
#20
Gulisa Turashvili, Edi Brogi, Monica Morrow, Clifford Hudis, Maura Dickler, Larry Norton, Hannah Y Wen
BACKGROUND/PURPOSE: The 21-gene recurrence score (RS) assay predicts the likelihood of distant recurrence and chemotherapy benefit in early-stage, estrogen receptor (ER)-positive, HER2-negative breast cancer. Data on the RS of special histologic subtypes of invasive breast carcinoma with favorable prognosis are limited. METHODS: We reviewed our institutional database to identify patients with special histologic subtypes of breast cancer associated with favorable prognosis and available RS results...
August 2017: Breast Cancer Research and Treatment
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