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Mammary carcinoma

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https://www.readbyqxmd.com/read/29146246/nanoparticle-formulation-improves-doxorubicin-efficacy-by-enhancing-host-antitumor-immunity
#1
Eric M Mastria, Leon Y Cai, Matthew J Kan, Xinghai Li, Jeffrey L Schaal, Steven Fiering, Michael D Gunn, Mark W Dewhirst, Smita K Nair, Ashutosh Chilkoti
Strategies that enhance the host antitumor immune response promise to revolutionize cancer therapy. Optimally mobilizing the immune system will likely require a multi-pronged approach to overcome the resistance developed by tumors to therapy. Recently, it has become recognized that doxorubicin can contribute to re-establishing host antitumor immunity through the generation of immunogenic cell death. However, the potential for delivery strategies to further enhance the immunological effects of doxorubicin has not been adequately examined...
November 13, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29142456/secretory-carcinoma-impact-of-translocation-and-gene-fusions-on-salivary-gland-tumor
#2
Ryoko Inaki, Masanobu Abe, Liang Zong, Takahiro Abe, Aya Shinozaki-Ushiku, Tetsuo Ushiku, Kazuto Hoshi
Secretory carcinoma (SC), previously described as mammary analogue secretory carcinoma (MASC), is a recently described salivary gland tumor which morphologically resembles mammary secretory carcinoma. The first description of SC/MASC, reported by Skálová et al. in 2010, was as a rare salivary carcinoma imitating secretory carcinoma of the breast. SC/MASC is a unique salivary gland tumor with morphological overlap with acinic cell carcinoma (AciCC), mucoepidermoid carcinoma (MEC), and adenocarcinoma not otherwise specified (ADC-NOS)...
October 2017: Chinese Journal of Cancer Research, Chung-kuo Yen Cheng Yen Chiu
https://www.readbyqxmd.com/read/29139296/differential-content-of-proteins-mrnas-and-mirnas-suggests-that-mdsc-and-their-exosomes-may-mediate-distinct-immune-suppressive-functions
#3
Lucia Geis-Asteggiante, Ashton T Belew, Virginia K Clements, Nathan J Edwards, Suzanne Ostrand-Rosenberg, Nagib M El-Sayed, Catherine Fenselau
Myeloid-derived suppressor cells (MDSC) are immature myeloid cells that accumulate in the circulation and the tumor microenvironment of most cancer patients. There, MDSC suppress both adaptive and innate immunity, hindering immunotherapies. The inflammatory milieu often present in cancers facilitates MDSC suppressive activity, causing aggressive tumor progression and metastasis. MDSC from tumor-bearing mice release exosomes, which carry biologically active proteins and mediate some of the immunosuppressive functions characteristic of MDSC...
November 15, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/29139009/lfm-a13-a-potent-inhibitor-of-polo-like-kinase-inhibits-breast-carcinogenesis-by-suppressing-proliferation-activity-and-inducing-apoptosis-in-breast-tumors-of-mice
#4
Kazim Sahin, Mehmet Tuzcu, Mehmet Yabas, Cemal Orhan, Nurhan Sahin, Ibrahim H Ozercan
The goals of the present study were to define the anticancer activity of LFM-A13 (α-cyano-β-hydroxy-β-methyl-N-(2,5-dibromophenyl)-propenamide), a potent inhibitor of Polo-like kinase (PLK), in a mouse mammary cancer model induced by 7,12-dimethylbenz(a)anthracene (DMBA) in vivo and explore its anticancer mechanism(s). We also examined whether the inhibition of PLK by LFM-A13 would improve the efficiency of paclitaxel in breast cancer growth in vivo. To do this, female BALB/c mice received 1 mg of DMBA once a week for 6 weeks with oral gavage...
November 15, 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/29137110/neobomb1-a-grpr-antagonist-for-breast-cancer-theragnostics-first-results-of-a-preclinical-study-with-67-ga-neobomb1-in-t-47d-cells-and-tumor-bearing-mice
#5
Aikaterini Kaloudi, Emmanouil Lymperis, Athina Giarika, Simone Dalm, Francesca Orlandi, Donato Barbato, Mattia Tedesco, Theodosia Maina, Marion de Jong, Berthold A Nock
The GRPR-antagonist-based radioligands [(67/68)Ga/(111)In/(177)Lu]NeoBOMB1 have shown excellent theragnostic profiles in preclinical prostate cancer models, while [(68)Ga]NeoBOMB1 effectively visualized prostate cancer lesions in patients. We were further interested to explore the theragnostic potential of NeoBOMB1 in GRPR-positive mammary carcinoma, by first studying [(67)Ga]NeoBOMB1 in breast cancer models; Methods: We investigated the profile of [(67)Ga]NeoBOMB1, a [(68)Ga]NeoBOMB1 surrogate, in GRPR-expressing T-47D cells and animal models; Results: NeoBOMB1 (IC50s of 2...
November 11, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29136577/atomic-force-microscopy-study-revealed-velocity-dependence-and-nonlinearity-of-nanoscale-poroelasticity-of-eukaryotic-cells
#6
Keyvan Mollaeian, Yi Liu, Siyu Bi, Juan Ren
Intracellular network deformation of the cell plays an important role in cellular shape formation. Recent studies suggest that cell reshaping and deformation due to external forces involve cellular volume, pore size, elasticity, and intracellular filaments polymerization degree change. This cell behavior can be described by poroelastic models due to the porous structure of the cytoplasm. In this study, the nanoscale poroelasticity of human mammary basal/claudin low carcinoma cell (MDA-MB-231) was investigated using indentation-based atomic force microscopy...
November 11, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29136341/photodynamic-therapy-and-nuclear-imaging-activities-of-zinc-phthalocyanine-integrated-tio2-nanoparticles-in-breast-and-cervical-tumors
#7
Fatma Yurt, Kasim Ocakoglu, Mine Ince, Suleyman Gokhan Colak, Ozge Er, Hale Melis Soylu, Cumhur Gunduz, Cıgır Biray Avci, Cansu Caliskan Kurt
In recent years, phthalocyanines (Pcs) have been widely used as photosensitizer in photodynamic therapy applications. Because of their strong absorptions in the near-infrared region (640-700 nm). The integration of phthalocyanine derivatives to a nanoparticle is expected to be efficient way to improve the activity of the photosensitizer on the targeted tissue. It is known that the integrated molecules not only show better accumulation on tumor tissue but also reduce toxicity in healthy tissues. In this study, the ZnPc molecule was synthesized and integrated to the TiO2 nanoparticle, to investigate the potential of PDT and its cytotoxicity...
November 14, 2017: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/29133591/chemokine-signaling-facilitates-early-stage-breast-cancer-survival-and-invasion-through-fibroblast-dependent-mechanisms
#8
Gage Brummer, Diana S Acevedo, Qingting Hu, Mike Portsche, Wei Fang, Min Yao, Brandon Zinda, Megan Myers, Nehemiah S Alvarez, Patrick Fields, Yan Hong, Fariba Behbod, Nikki Cheng
Ductal carcinoma in situ (DCIS) is the most common form of breast cancer, with 50,000 cases diagnosed every year in the United States. Over-treatment and under-treatment remain significant clinical challenges in patient care. Identifying key mechanisms associated with DCIS progression could uncover new biomarkers to better predict patient prognosis and improve guided treatment. Chemokines are small soluble molecules that regulate cellular homing through molecular gradients. CCL2-mediated recruitment of CCR2+ macrophages are a well-established mechanism for metastatic progression...
November 13, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/29126758/maspin-expression-and-subcellular-localization-in-invasive-ductal-carcinoma-of-the-breast-prognostic-significance-and-relation-to-microvessel-density
#9
Duaa S Helal, Dina M El-Guindy
Maspin (Mammary serine protease inhibitor) is a tumor suppressor serine. Its clinical significance and role in breast carcinoma are contradictory and inconclusive. Researches demonstrated that the function of maspin differs according to its subcellular localization. This study was conducted to investigate the expression of maspin in invasive ductal carcinoma (IDC) of the breast with special emphasis on its subcellular localization and to evaluate its prognostic role in relation to clinicopathological parameters and microvessel density (MVD) of the tumor...
November 7, 2017: Journal of the Egyptian National Cancer Institute
https://www.readbyqxmd.com/read/29119740/breast-metastasis-of-gastric-signet-ring-cell-carcinoma
#10
Li-Yuan Wei, Mei Kong, Zhen Zhang, Xiao-Chen Zhang
Metastatic breast involvement from extra-mammary neoplasms is unusual with a low incidence of 0.5% to 1.2% in clinical practice, 2.7% in cytological series, and 1.7% to 6.6% in autopsy series of all breast malignancies. Nearly 500 cases have been reported in small series and case reports. Gastric carcinoma rarely metastasizes to the breast. There are only 38 cases reported in PubMed. In this study, we present a case report of a 49-year-old woman who was diagnosed with right breast metastasis from a gastric carcinoma and undertake a literature review to pay attention to the diagnosis, treatment, and the prognosis of the disease...
2017: Journal of Zhejiang University. Science. B
https://www.readbyqxmd.com/read/29119353/impact-of-microinvasion-on-breast-cancer-mortality-in-women-with-ductal-carcinoma-in-situ
#11
Victoria Sopik, Ping Sun, Steven A Narod
BACKGROUND: Ductal carcinoma in situ (DCIS) is a neoplastic proliferation of epithelial cells which is confined within the basement membrane of the mammary ductal-lobular system. It is of interest to determine to what extent the potential to metastasize increases for DCIS patients when the basement membrane is breached (i.e. microinvasion is present). METHODS: We retrieved the records of 525,395 women who had either first primary DCIS or small (≤ 2.0 cm) node-negative invasive breast cancer in the Surveillance, Epidemiology and End Results (SEER) registries database (1990-2013)...
November 8, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29105372/phthalocyanine-conjugated-upconversion-nayf4-yb3-er3-sio2-nanospheres-for-nir-triggered-photodynamic-therapy-in-a-tumour-mouse-model
#12
Daniel Horak, Uliana Kostiv, Vitalii Patsula, Agnieszka Noculak, Artur Podhorodecki, David Vetvicka, Pavla Pouckova, Zdenka Sedlakova
Monodisperse NaYF4:Yb3+/Er3+ nanospheres 20 nm in diameter that serve as a near-infrared (NIR)-to-visible light converter and activator of a photosensitizer were synthesized by high-temperature co-precipitation of lanthanide chlorides in a high-boiling organic solvent (octadec-1-ene). The nanoparticles were coated with a thin shell (ca. 3 nm) of homogenous silica via the hydrolysis and condensation of tetramethyl orthosilicate. The NaYF4:Yb3+/Er3+@SiO2 particles were further functionalized by methacrylate-terminated groups via 3-(trimethoxysilyl)propyl methacrylate...
November 3, 2017: ChemMedChem
https://www.readbyqxmd.com/read/29105026/metastatic-non-small-cell-lung-carcinoma-a-mimic-of-primary-breast-carcinoma-case-series-and-literature-review
#13
Rola H Ali, Catalin Taraboanta, Tareq Mohammad, Malcolm M Hayes, Diana N Ionescu
Metastatic tumors to the breast are rare but constitute a major diagnostic dilemma. Of these, non-mammary carcinomatous metastases to the breast are particularly challenging and, without a clinical history, may be extremely difficult to distinguish from primary breast carcinoma (PBC). We specifically studied metastatic tumors of pulmonary origin, as the lung is one of the major primary sites for carcinomatous metastasis to breast. Sixteen metastatic lung tumors to the breast were identified in our archives between 1996 and 2017 including 12 non-small cell lung carcinomas (NSCLC), one large-cell neuroendocrine, one atypical carcinoid, and two small-cell carcinomas...
November 5, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29104587/notch-and-its-oncogenic-activity-in-human-malignancies
#14
REVIEW
Marlena Brzozowa-Zasada, Adam Piecuch, Marek Michalski, Oliwia Segiet, Józef Kurek, Marzena Harabin-Słowińska, Romuald Wojnicz
Background: Increasing evidence has demonstrated that Notch signaling is deregulated in human hematological malignancies and solid tumors. This signaling has a protumorigenic effect but may also act as a tumor suppressor. How induction of a single pathway gives rise to the opposite effects in different cell types is still unknown. Methods: This review article includes available data from peer-reviewed publications associated with the role of Notch signaling during cancer pathogenesis...
2017: European Surgery: ACA: Acta Chirurgica Austriaca
https://www.readbyqxmd.com/read/29104113/primary-mammary-analogue-secretory-carcinoma-of-the-lung-a-case-report
#15
Tao Huang, Jonathan B McHugh, Gerald J Berry, Jeffrey L Myers
Mammary analogue secretory carcinoma (MASC) is a recently discovered salivary gland tumor described mostly in the major salivary glands and occasionally in the skin. We report a primary endobronchial tumor with histology, immunophenotype, and ETV6 rearrangement characteristic of MASC in a 62-year-old woman. The diagnosis was initially made on a transbronchial biopsy with FISH confirmation of ETV6 rearrangement. The patient underwent lobectomy demonstrating a large endobronchial mass. To our knowledge, this is the first report of MASC arising as a primary pulmonary tumor...
November 2, 2017: Human Pathology
https://www.readbyqxmd.com/read/29099503/recurrent-eml4-ntrk3-fusions-in-infantile-fibrosarcoma-and-congenital-mesoblastic-nephroma-suggest-a-revised-testing-strategy
#16
Alanna J Church, Monica L Calicchio, Valentina Nardi, Alena Skalova, Andre Pinto, Deborah A Dillon, Carmen R Gomez-Fernandez, Namitha Manoj, Josh D Haimes, Joshua A Stahl, Filemon S Dela Cruz, Sarah Tannenbaum-Dvir, Julia L Glade-Bender, Andrew L Kung, Steven G DuBois, Harry P Kozakewich, Katherine A Janeway, Antonio R Perez-Atayde, Marian H Harris
Infantile fibrosarcoma and congenital mesoblastic nephroma are tumors of infancy traditionally associated with the ETV6-NTRK3 gene fusion. However, a number of case reports have identified variant fusions in these tumors. In order to assess the frequency of variant NTRK3 fusions, and in particular whether the recently identified EML4-NTRK3 fusion is recurrent, 63 archival cases of infantile fibrosarcoma, congenital mesoblastic nephroma, mammary analog secretory carcinoma and secretory breast carcinoma (tumor types that are known to carry recurrent ETV6-NTRK3 fusions) were tested with NTRK3 break-apart FISH, EML4-NTRK3 dual fusion FISH, and targeted RNA sequencing...
November 3, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/29096654/the-analgesic-effects-of-triptolide-in-the-bone-cancer-pain-rats-via-inhibiting-the-upregulation-of-hdacs-in-spinal-glial-cells
#17
Xiao-Fan Hu, Xiao-Tao He, Kai-Xiang Zhou, Chen Zhang, Wen-Jun Zhao, Ting Zhang, Jin-Lian Li, Jian-Ping Deng, Yu-Lin Dong
BACKGROUND: Bone cancer pain (BCP) severely compromises the quality of life, while current treatments are still unsatisfactory. Here, we tested the antinociceptive effects of triptolide (T10), a substance with considerable anti-tumor efficacies on BCP, and investigated the underlying mechanisms targeting the spinal dorsal horn (SDH). METHODS: Intratibial inoculation of Walker 256 mammary gland carcinoma cells was used to establish a BCP model in rats. T10 was intrathecally injected, and mechanical allodynia was tested by measuring the paw withdrawal thresholds (PWTs)...
November 2, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29082243/mammary-and-extramammary-paget-s-disease-presented-different-expression-pattern-of-steroid-hormone-receptors
#18
Songxia Zhou, Weixiang Zhong, Ruiqin Mai, Guohong Zhang
BACKGROUND AND OBJECTIVES: Paget's disease (PD) is a rare intraepithelial adenocarcinoma, which is composed of mammary (MPD) and extramammary Paget's disease (EMPD). Currently, the published literature contains scant data on expression pattern of steroid hormone receptors in MPD and EMPD. METHODS: Expression of estrogen receptor (ER) and androgen receptor (AR) was evaluated in 88 MPD and 72 EMPD by using immunohistochemical staining and H-score method. RESULTS: Positive expression of AR was significantly higher in EMPD (61...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29081930/mammary-analogue-secretory-carcinoma-of-salivary-glands-diagnostic-pitfall-with-distinct-immunohistochemical-profile-and-molecular-features
#19
Oliver Bissinger, Carolin Götz, Andreas Kolk, Henning A Bier, Abbas Agaimy, Henning Frenzel, Sven Perner, Julika Ribbat-Idel, Klaus Dietrich Wolff, Wilko Weichert, Caroline Mogler
Mammary analogue secretory carcinoma (MASC) is a newly defined entity among salivary gland malignancies which has just been established in the 4(th) edition of the WHO classification of head and neck tumors. MASC (synonym: secretory carcinoma) are characterized by a specific rearangement of the ETV6 gene locus. Here, we present a series of 3 MASC cases including clinical data with follow-up for up to 26 months. All tumours immunhistochemically displayed strong positivity for cytokeratin 7, and mammaglobin, focal positivity for S100, cytokeratin 5/6 and muc-4...
October 3, 2017: Rare Tumors
https://www.readbyqxmd.com/read/29079540/il-18-contributes-to-bone-cancer-pain-by-regulating-glia-cells-and-neuron-interaction
#20
Su Liu, Yue-Peng Liu, You Lv, Jun-Li Yao, Dong-Mei Yue, Mao-Yin Zhang, Dun-Yi Qi, Gong-Jian Liu
BACKGROUND: Glia cells hyperactivity has been proposed to be responsible for chronic pain, however, the mechanisms remain unclear. IL-18, released from glial cells, has been reported to be involved in neuropathic pain. Here, we investigated the role of IL-18 in bone cancer pain. METHODS: Bone cancer pain was mimicked by injecting Walker-256 mammary gland carcinoma cells into the intramedullary space of the tibia in rats. Expression and location of IL-18 and IL-18 receptor were tested...
October 24, 2017: Journal of Pain: Official Journal of the American Pain Society
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