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Metaplastic breast cancer

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https://www.readbyqxmd.com/read/28195880/pd-l1-expression-and-intratumoral-heterogeneity-across-breast-cancer-subtypes-and-stages-an-assessment-of-245-primary-and-40-metastatic-tumors
#1
Erik A Dill, Alejandro A Gru, Kristen A Atkins, Lisa A Friedman, Margaret E Moore, Timothy N Bullock, Janet V Cross, Patrick M Dillon, Anne M Mills
Tumor expression of programmed cell death ligand 1 (PD-L1) is associated with immune evasion in a variety of malignancies, including a subset of triple-negative breast carcinomas, and may mark cancers as susceptible to PD-1/PD-L1 inhibitor therapies. We herein characterize PD-L1 expression in breast cancers across the full range of histomorphologies and investigate its intratumoral heterogeneity and fidelity across primaries and metastases. A total of 245 primary and 40 metastatic (20 nodal, 20 distant) breast carcinomas were evaluated with PD-L1 immunohistochemistry on tissue microarray...
March 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28188513/breast-metastasis-of-pulmonary-pleomorphic-carcinoma-a-case-report
#2
Tomoyuki Fujita, Hajime Nishimura, Ryoichi Kondo, Kinya Furukawa, Yukio Morishita, Minoru Fujimori
BACKGROUND: Lung cancer rarely metastasizes to the breast, and breast metastasis of pulmonary pleomorphic carcinoma has not been previously reported. CASE PRESENTATION: The patient was a 66-year-old woman who became aware of a mass in the right breast and visited a physician. She was referred to our department for close examination, upon which she was diagnosed with double cancer (right breast cancer and left lung cancer). Needle biopsy findings for the mammary tumor were similar to those for the lung biopsy specimen, but spindle cell or metaplastic carcinoma were possibilities...
December 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28153863/the-landscape-of-somatic-genetic-alterations-in-metaplastic-breast-carcinomas
#3
Charlotte K Y Ng, Salvatore Piscuoglio, Felipe C Geyer, Kathleen A Burke, Fresia Pareja, Carey Eberle, Reymond Lim, Rachael Natrajan, Nadeem Riaz, Odette Mariani, Larry Norton, Anne Vincent-Salomon, Y Hannah Wen, Britta Weigelt, Jorge S Reis-Filho
PURPOSE: Metaplastic breast carcinoma (MBC) is a rare and aggressive histologic type of breast cancer predominantly of triple-negative phenotype, and characterized by the presence of malignant cells showing squamous and/or mesenchymal differentiation. We sought to define the repertoire of somatic genetic alterations and the mutational signatures of MBCs. EXPERIMENTAL DESIGN: Whole-exome sequencing was performed in 35 MBCs, with 16, ten and nine classified as harboring chondroid, spindle and squamous metaplasia as the predominant metaplastic component...
February 2, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28104032/-analysis-of-the-factors-influencing-adjuvant-chemotherapy-decisions-for-triple-negative-breast-cancer
#4
J Hong, X S Chen, J Y Wu, O Huang, L Zhu, J R He, Q Fang, W G Chen, Y F Li, K W Shen
Objective: To analyze adjuvant chemotherapy decisions for triple negative breast cancer (TNBC), and explore the influencing factors in the multidisciplinary treatment (MDT) modality. Methods: A retrospective analysis was performed. The cases with invasive TNBC who underwent surgery and MDT discussion for adjuvant treatment in Ruijin Hospital, from April 2013 to June 2015, were recruited. The patients' clinicopathological characteristics were analyzed and adjuvant treatment suggestions from MDT were obtained...
January 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28101030/mucoepidermoid-carcinoma-of-the-breast-found-during-treatment-of-lymphoma
#5
Minoru Fujino, Daisuke Mori, Michiaki Akashi, Hidetaka Yamamoto, Hitoshi Aibe, Kunishige Matake, Kengo Shirahane
A 71-year-old woman, previously treated for malignant lymphoma, was admitted to our hospital with a tumor in the right breast. The tumor size was 2.0 cm in diameter, and the borderline was unclear. The core needle biopsy material revealed an invasive adenocarcinoma with metaplastic change. Right mastectomy and sentinel lymph node biopsy was performed. Histologically, the tumor was composed of mucus-secreting, epidermoid, and intermediate cells. These findings confirmed the diagnosis as mucoepidermoid carcinoma (MEC) of the breast...
September 2016: Case Reports in Oncology
https://www.readbyqxmd.com/read/28040796/role-of-rpl39-in-metaplastic-breast-cancer
#6
Bhuvanesh Dave, Daniel D Gonzalez, Zhi-Bin Liu, Xiaoxian Li, Helen Wong, Sergio Granados, Nadeer E Ezzedine, Douglas H Sieglaff, Joe E Ensor, Kathy D Miller, Milan Radovich, Agda KarinaEtrovic, Steven S Gross, Olivier Elemento, Gordon B Mills, Michael Z Gilcrease, Jenny C Chang
BACKGROUND: Metaplastic breast cancer is one of the most therapeutically challenging forms of breast cancer because of its highly heterogeneous and chemoresistant nature. We have previously demonstrated that ribosomal protein L39 (RPL39) and its gain-of-function mutation A14V have oncogenic activity in triple-negative breast cancer and this activity may be mediated through inducible nitric oxide synthase (iNOS). The function of RPL39 and A14V in other breast cancer subtypes is currently unknown...
June 2017: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/28029685/immunoprofile-of-metaplastic-carcinomas-of-the-breast
#7
Emad A Rakha, Nuno D M Coimbra, Zsolt Hodi, Enaam Juneinah, Ian O Ellis, Andrew H S Lee
BACKGROUND: Metaplastic breast carcinoma (MBC) is a rare type of breast cancer and its diagnosis in routine practice can be challenging and may require immunohistochemical (IHC) characterisation if no conventional invasive or in situ carcinoma is present. Previous IHC studies of MBC often had a small sample size and did not investigate the different histological subtypes. This study aimed to assess the immunoprofile of MBC subtypes in a large series. METHODS: 172 MBC diagnosed in routine and referral practice in Nottingham over 26 years were reviewed by 3 breast pathologists...
December 28, 2016: Histopathology
https://www.readbyqxmd.com/read/27904534/metaplastic-breast-cancer-with-rapidly-progressive-recurrence-in-a-young-woman-case-report-and-review-of-the-literature
#8
Jerzy W Mituś, Beata Sas-Korczyńska, Anna Kruczak, Marek Jasiówka, Janusz Ryś
No abstract text is available yet for this article.
December 1, 2016: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/27895758/metaplastic-carcinoma-of-the-breast-imaging-and-pathological-features
#9
Tiantian Bian, Qing Lin, Zengjie Wu, Chunxiao Cui, Chunhua Qi, Li Li, Xiaohui Su
Metaplastic carcinoma of the breast is a rare form of breast cancer. The aim of the present study was to investigate the imaging and pathological features of metaplastic carcinoma. The features identified on mammography and sonography were retrospectively reviewed in 13 women with metaplastic carcinoma of the breast. The results from the mammographs and sonographs were additionally evaluated using immunohistochemical staining for the expression of the estrogen receptor (ER) and progesterone receptor (PR), receptor tyrosine-protein kinase erbB-2 (CerbB-2) and P53...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27893038/targeting-the-pi3k-akt-mtor-pathway-for-the-treatment-of-mesenchymal-triple-negative-breast-cancer-evidence-from-a-phase-1-trial-of-mtor-inhibition-in-combination-with-liposomal-doxorubicin-and-bevacizumab
#10
Reva K Basho, Michael Gilcrease, Rashmi K Murthy, Thorunn Helgason, Daniel D Karp, Funda Meric-Bernstam, Kenneth R Hess, Shelley M Herbrich, Vicente Valero, Constance Albarracin, Jennifer K Litton, Mariana Chavez-MacGregor, Nuhad K Ibrahim, James L Murray, Kimberly B Koenig, David Hong, Vivek Subbiah, Razelle Kurzrock, Filip Janku, Stacy L Moulder
Importance: Triple-negative breast cancer (TNBC) classified by transcriptional profiling as the mesenchymal subtype frequently harbors aberrations in the phosphoinositide 3-kinase (PI3K) pathway, raising the possibility of targeting this pathway to enhance chemotherapy response. Up to 30% of mesenchymal TNBC can be classified histologically as metaplastic breast cancer, a chemorefractory group of tumors with a mixture of epithelial and mesenchymal components identifiable by light microscopy...
November 23, 2016: JAMA Oncology
https://www.readbyqxmd.com/read/27819674/mmtv-cre-ccn6-knockout-mice-develop-tumors-recapitulating-human-metaplastic-breast-carcinomas
#11
E E Martin, W Huang, T Anwar, C Arellano-Garcia, B Burman, J-L Guan, M E Gonzalez, C G Kleer
Metaplastic breast carcinoma is an aggressive form of invasive breast cancer with histological evidence of epithelial to mesenchymal transition (EMT). However, the defining molecular events are unknown. Here we show that CCN6 (WISP3), a secreted matricellular protein of the CCN (CYR61/CTGF/NOV) family, is significantly downregulated in clinical samples of human spindle cell metaplastic breast carcinoma. We generated a mouse model of mammary epithelial-specific Ccn6 deletion by developing a floxed Ccn6 mouse which was bred with an MMTV-Cre mouse...
November 7, 2016: Oncogene
https://www.readbyqxmd.com/read/27738308/response-to-apatinib-in-chemotherapy-failed-advanced-spindle-cell-breast-carcinoma
#12
Na Zhou, Congmin Liu, Helei Hou, Chuantao Zhang, Dong Liu, Guanqun Wang, Kewei Liu, Jingjuan Zhu, Hongying Lv, Tianjun Li, Xiaochun Zhang
Spindle cell carcinoma of the breast is a rare subtype of metaplastic carcinoma, and no effective chemotherapy special for metaplastic carcinoma exists until now. As spindle cell carcinomas of the breast are typically "Triple Negative", endocrine therapy and molecular therapy targeted to Her2 might not be favorable, resulting in poor prognosis. Apatinib is currently being tested in patients with breast or lung cancers. Here we report a successful case using Apatinib to treat spindle cell carcinoma of breast...
1, 2016: Oncotarget
https://www.readbyqxmd.com/read/27697421/carcinosarcoma-of-the-breast-an-aggressive-subtype-of-metaplastic-cancer-report-of-a-rare-case-in-a-young-brca-1-mutated-woman
#13
Matteo Ghilli, Donatella M Mariniello, Giovanni Fanelli, Francesca Cascione, Andrea Fontana, Agostino Cristaudo, Anna Cilotti, Adelaide M Caligo, Giampiero Manca, Livio Colizzi, Antonio G Naccarato, Manuela Roncella
No abstract text is available yet for this article.
August 30, 2016: Clinical Breast Cancer
https://www.readbyqxmd.com/read/27659377/paraneoplastic-polymyositis-presenting-as-a-clinically-occult-breast-cancer
#14
N Merali, M Yousuff, V Pronisceva, A Poddar
Paraneoplastic syndrome affects less than 1% of cancer patients. Diagnosis of paraneoplastic syndrome with neurological presentation requires screening for an underlying malignancy, including a complete history, physical examination and imaging studies. Treatment often results in symptom stability, rather than improvement. Paraneoplastic polymyositis can precede or instantaneously occur at diagnosis or treatment of a primary tumour, while neurological symptoms can persist even following cancer treatment. We report a rare case of metaplastic breast carcinoma with an unusual presentation of paraneoplastic polymyositis...
February 2017: Annals of the Royal College of Surgeons of England
https://www.readbyqxmd.com/read/27626636/spock1-is-a-novel-transforming-growth-factor-%C3%AE-induced-myoepithelial-marker-that-enhances-invasion-and-correlates-with-poor-prognosis-in-breast-cancer
#15
Li-Ching Fan, Yung-Ming Jeng, Yueh-Tong Lu, Huang-Chun Lien
In addition to contraction, myoepithelia have diverse paracrine effects, including a tumor suppression effect. However, certain myoepithelial markers have been shown to contribute to tumor progression. Transforming growth factor-β (TGF-β) is involved in the transdifferentiation of fibroblasts to contractile myofibroblasts. We investigated whether TGF-β can upregulate potential myoepithelial markers, which may have functional and clinicopathological significance in breast cancer. We found that TGF-β induced SPOCK1 expression in MCF10A, MCF12A, and M10 breast cells and demonstrated SPOCK1 as a novel myoepithelial marker that was immunolocalized within or beneath myoepithelia lining ductolobular units...
2016: PloS One
https://www.readbyqxmd.com/read/27583878/features-of-triple-negative-breast-cancer-analysis-of-38-813-cases-from-the-national-cancer-database
#16
Magdalena L Plasilova, Brandon Hayse, Brigid K Killelea, Nina R Horowitz, Anees B Chagpar, Donald R Lannin
The aim of this study was to determine the features of triple-negative breast cancer (TNBC) using a large national database. TNBC is known to be an aggressive subtype, but national epidemiologic data are sparse. All patients with invasive breast cancer and known molecular subtype diagnosed in 2010 to 2011 were identified from the National Cancer Data Base (NCDB). Patients with and without TNBC were compared with respect to their sociodemographic and clinicopathologic features. TNBC was present in 38,628 of 295,801 (13%) female patients compared to 185 of 3136 (6%) male patients (P < 0...
August 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27568101/metaplastic-breast-cancer-molecular-typing-and-identification-of-potential-targeted-therapies-at-a-single-institution
#17
Jessica Edenfield, Christine Schammel, Justin Collins, David Schammel, W Jeff Edenfield
INTRODUCTION: Metaplastic breast carcinoma (MBC) is a rare and aggressive histologic subtype of breast cancer comprising approximately 0.5% to 5.0% of all invasive breast cancers with a poor prognosis and limited therapeutic options. PATIENTS AND METHODS: We investigated MBC at our institution to evaluate outcomes and investigate the molecular profile of our cohort to determine the presence of mutations for which there are targeted therapies. RESULTS: We found our cohort to consist mainly of the matrix-producing variant (72%) with 48% having the stereotypical estrogen receptor-negative/progesterone receptor-negative/human epidermal growth factor receptor-2-negative phenotype...
July 25, 2016: Clinical Breast Cancer
https://www.readbyqxmd.com/read/27531819/comprehensive-profiling-of-metaplastic-breast-carcinomas-reveals-frequent-overexpression-of-programmed-death-ligand-1
#18
Upasana Joneja, Semir Vranic, Jeffrey Swensen, Rebecca Feldman, Wangjuh Chen, Jeffrey Kimbrough, Nianqing Xiao, Sandeep Reddy, Juan Palazzo, Zoran Gatalica
AIMS: Metaplastic breast carcinoma (MBC) is a rare subtype of breast carcinoma less responsive to conventional chemotherapy than ductal carcinoma. In molecular terms, MBCs usually cluster with triple-negative breast cancers (TNBCs), but have a worse prognosis than TNBCs. Studies investigating MBCs for specific biomarkers of therapy response are rare and limited by the methodological approaches. The aim of the present study was to characterise MBCs on a molecular level and test programmed death-ligand 1 (PD-L1) biomarker expression in MBCs for future therapeutic interventions...
August 16, 2016: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/27431460/management-and-outcomes-in-metaplastic-breast-cancer
#19
REVIEW
Ioannis-Georgios Tzanninis, Elias A Kotteas, Ioannis Ntanasis-Stathopoulos, Panagiota Kontogianni, George Fotopoulos
Metaplastic breast cancer (MBC) constitutes a rare clinical entity with special clinicopathologic, immunohistochemical, and molecular features. Resistance to systemic therapies, whether chemotherapy or hormonal therapy, is among its main characteristics, which in turn explains the poor prognosis and renders its management a challenge. Thus, the scope of the present review is to discuss the current therapeutic strategies for MBC in clinical practice and the corresponding outcomes and to suggest possible directions for future research...
December 2016: Clinical Breast Cancer
https://www.readbyqxmd.com/read/27424438/-metaplastic-carcinoma-of-the-breast-and-the-impact-of-the-p63-and-cytokeratin-5-6-experience-of-40-patients
#20
S Sherwell-Cabello, A Maffuz-Aziz, B Hernández-Hernández, V Bautista-Piña, S Labastida-Almendaro, S Rodríguez-Cuevas
BACKGROUND: Metaplasic carcinoma of the breast was initially described by Huvos in 1974. It is a rare and aggressive entity characterized by the presence of mesenchymal and epithelial components. OBJECTIVE: To know the incidence and biologic behaviour of the metaplasic carcinoma of the breast at the Instituto de Enfermedades de la Mama, FUCAM, AC. METHODS: Data on women diagnosed with metaplasic carcinoma of the breast between January 2005 and December 2014 was collected by retrospectively reviewing in FUCAM...
March 2016: Ginecología y Obstetricia de México
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