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Mammary carcinoma

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https://www.readbyqxmd.com/read/28229277/ginger-extract-adjuvant-to-doxorubicin-in-mammary-carcinoma-study-of-some-molecular-mechanisms
#1
Nahla E El-Ashmawy, Naglaa F Khedr, Hoda A El-Bahrawy, Hend E Abo Mansour
PURPOSE: The present study aimed to investigate the molecular mechanisms underlying the anticancer properties of ginger extract (GE) in mice bearing solid Ehrlich carcinoma (SEC) and to evaluate the use of GE in combination with doxorubicin (DOX) as a complementary therapy against SEC. METHODS: SEC was induced in 60 female mice. Mice were divided into four equal groups: SEC, GE, DOX and GE + DOX. GE (100 mg/kg orally day after day) and DOX (4 mg/kg i.p. for 4 cycles every 5 days) were given to mice starting on day 12 of inoculation...
February 22, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28217810/-effects-of-intrathecal-administration-of-am22-52-on-mechanical-allodynia-and-ccl2-expression-in-drg-in-bone-cancer-rats
#2
Ya-Juan Chen, Yuan-Hui Huo, Yanguo Hong
The pain peptide adrenomedullin (AM) plays a pivotal role in pathological pain. The present study was designed to investigate the effect of blockade of AM receptor on bone cancer pain (BCP) and its mechanism. BCP was developed by inoculation of Walker 256 mammary gland carcinoma cells in the tibia medullary cavity of Sprague Dawley rats. The selective AM receptor antagonist AM22-52 was administered intrathecally on 15 d after the inoculation. Quantitative real-time PCR was used to detect mRNA level of CC chemokine ligand 2 (CCL2) in dorsal root ganglion (DRG)...
February 25, 2017: Sheng Li Xue Bao: [Acta Physiologica Sinica]
https://www.readbyqxmd.com/read/28216544/surgery-and-electrochemotherapy-treatment-of-incompletely-excised-mammary-carcinoma-in-two-male-pet-rats-rattus-norvegicus
#3
Andrea Lanza, Michela Pettorali, Alfonso Baldi, Enrico P Spugnini
Two male rats (Rattus norvegicus; 18 and 24 months old), were referred for treatment of large masses located in the axillary area. Following total body radiography and hematological and serum biochemical analysis, the rats were anesthetized, and the masses were surgically removed. Both lesions were diagnosed as mammary carcinoma based on histopathological diagnosis. The tumor beds were treated with two sessions of electrochemotherapy (ECT), two weeks apart. ECT involved cisplatin administration in the tumor bed, followed by a series of eight biphasic electric pulses...
February 18, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28215639/gata3-expression-and-its-relationship-with-clinicopathological-parameters-in-invasive-breast-carcinomas
#4
A Cakir, I Isik Gonul, O Ekinci, B Cetin, M Benekli, O Uluoglu
GATA3, as a transcription factor, is associated with estrogen receptor (ER) expression and necessary for luminal cell differentiation in mammary glands. Association of GATA3 expression with clinicopathological parameters, molecular subtypes of tumors, disease free survival (DFS) and overall survival (OS) for breast carcinoma patients were evaluated in this study. We immunohistochemically stained GATA3, CK5/6, EGFR, CK14 and vimentin on tissue microarray blocks of 457 invasive breast carcinomas. Tumors are sub-classified as luminal A, luminal B, HER2 expressing, basal-like and null type according to their hormonal status with cerbB2, CK 5/6 and EGFR expressions...
January 10, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28214545/potential-of-amphiphilic-graft-copolymer-%C3%AE-tocopherol-succinate-g-carboxymethyl-chitosan-in-modulating-the-permeability-and-anticancer-efficacy-of-tamoxifen
#5
Sunil K Jena, Sanjaya K Samal, Shamandeep Kaur, Mahesh Chand, Abhay T Sangamwar
Recent studies showed an enhanced oral bioavailability of tamoxifen (TMX) by hydrophobically modified α-tocopherol succinate-g-carboxymethyl chitosan (Cmc-TS) micelles. As a continued effort, here we evaluated TMX-loaded polymeric micelles (TMX-PMs) for its enhanced permeability with increased anticancer efficacy and decreased hepatotoxicity. We employed co-solvent evaporation technique to encapsulate TMX into Cmc-TS. Apparent permeability assay of TMX-PMs was performed on Caco-2 cell line. The absorptive transport of TMX increased significantly about 3...
February 16, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28212608/transcriptomic-dynamics-of-breast-cancer-progression-in-the-mmtv-pymt-mouse-model
#6
Ying Cai, Ruben Nogales-Cadenas, Quanwei Zhang, Jhih-Rong Lin, Wen Zhang, Kelly O'Brien, Cristina Montagna, Zhengdong D Zhang
BACKGROUND: Malignant breast cancer with complex molecular mechanisms of progression and metastasis remains a leading cause of death in women. To improve diagnosis and drug development, it is critical to identify panels of genes and molecular pathways involved in tumor progression and malignant transition. Using the PyMT mouse, a genetically engineered mouse model that has been widely used to study human breast cancer, we profiled and analyzed gene expression from four distinct stages of tumor progression (hyperplasia, adenoma/MIN, early carcinoma and late carcinoma) during which malignant transition occurs...
February 17, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28195265/solid-papillary-carcinoma-of-the-nipple-an-in-situ-carcinoma-or-an-expansive-growth-tumor
#7
D Tacchini, L Vassallo, M A G M Butorano, V Mancini, T Megha
Papillary breast lesions are a heterogeneous group of tumors which mainly arise in the central mammary region, ranging from benign to malignant. Among them, solid papillary carcinoma (SPC) represents a very uncommon variant with indolent clinical behavior and excellent prognosis. The categorization of papillary lesions as benign, atypical or malignant is often difficult even for experienced pathologists. Furthermore, for prognostic purposes, to decide whether to consider a lesions as in situ when it is not associated with frank invasive foci of carcinoma may be problematic...
September 2016: Pathologica
https://www.readbyqxmd.com/read/28194662/mmtv-pymt-and-derived-met-1-mouse-mammary-tumor-cells-as-models-for-studying-the-role-of-the-androgen-receptor-in-triple-negative-breast-cancer-progression
#8
Jessica L Christenson, Kiel T Butterfield, Nicole S Spoelstra, John D Norris, Jatinder S Josan, Julie A Pollock, Donald P McDonnell, Benita S Katzenellenbogen, John A Katzenellenbogen, Jennifer K Richer
Triple-negative breast cancer (TNBC) has a faster rate of metastasis compared to other breast cancer subtypes, and no effective targeted therapies are currently FDA-approved. Recent data indicate that the androgen receptor (AR) promotes tumor survival and may serve as a potential therapeutic target in TNBC. Studies of AR in disease progression and the systemic effects of anti-androgens have been hindered by the lack of an AR-positive (AR+) immunocompetent preclinical model. In this study, we identified the transgenic MMTV-PyMT (mouse mammary tumor virus-polyoma middle tumor-antigen) mouse mammary gland carcinoma model of breast cancer and Met-1 cells derived from this model as tools to study the role of AR in breast cancer progression...
February 13, 2017: Hormones & Cancer
https://www.readbyqxmd.com/read/28194567/ultrastructural-characterization-of-mammary-analogue-secretory-carcinoma-of-the-salivary-glands-a-distinct-entity-from-acinic-cell-carcinoma
#9
Julie Guilmette, Gunnlaugur P Nielsen, William C Faquin, Martin Selig, Vânia Nosé, Anthony W S Chi, Peter M Sadow
Mammary analogue secretory carcinoma (MASC) of the salivary glands is a recently described neoplasm of the salivary glands with a characteristic morphology complemented by a specific cytogenetic translocation and gene rearrangements. Although immunophenotypic and cytogenetic differences allow for a more reliable distinction, ultrastructural features can also provide important information about the relationship between MASC, classic acinic cell carcinoma (AciCC), and AciCC intercalated duct cell-predominant variant...
February 13, 2017: Head and Neck Pathology
https://www.readbyqxmd.com/read/28188513/breast-metastasis-of-pulmonary-pleomorphic-carcinoma-a-case-report
#10
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/28185719/the-induction-of-oxidative-stress-in-cervix-carcinoma-cells-by-levoglucosenone-derived-4-s-salicyl-derivative-and-1-4-s-thio-disaccharides-part-4
#11
Joanna Sarnik, Anna Czubatka-Bienkowska, Anna Macieja, Roman Bielski, Zbigniew J Witczak, Tomasz Poplawski
(1-4)-S-thiodisaccharides were shown to kill various cancer cell lines, including cervix, lung, mammary-gland and colon by unknown mechanisms. Here we identified two actions of levoglucosenone derived (1-4)-S-thiodisaccharides against cervix cancer cells: induction of oxidative stress and DNA damage. In consequence, (1-4)-S-thiodisaccharides lowered the cellular GSH level and changed the expression profile of genes encoding key proteins involved with oxidative stress response. We also observed that (1-4)-S-thiodisaccharides induced DNA damage and interfered with the thioredoxin (Trx) system...
January 22, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28183697/safety-and-antitumor-activity-of-the-multi-targeted-pan-trk-ros1-and-alk-inhibitor-entrectinib-rxdx-101-combined-results-from-two-phase-1-trials-alka-372-001-and-startrk-1
#12
Alexander Drilon, Salvatore Siena, Sai-Hong Ignatius Ou, Manish Patel, Myung Ju Ahn, Jeeyun Lee, Todd M Bauer, Anna F Farago, Jennifer J Wheler, Stephen V Liu, Robert Doebele, Laura Giannetta, Giulio Cerea, Giovanna Marrapese, Michele Schirru, Alessio Amatu, Katia Bencardino, Laura Palmeri, Andrea Sartore-Bianchi, Angelo Vanzulli, Sara Cresta, Silvia Damian, Matteo Duca, Elena Ardini, Gang Li, Jason Christiansen, Karey Kowalski, Ann Johnson, Rupal Patel, David Luo, Edna Chow-Maneval, Zachary Hornby, Pratik S Multani, Alice T Shaw, Filippo G De Braud
Entrectinib, a potent oral inhibitor of the tyrosine kinases TRKA/B/C, ROS1, and ALK, was evaluated in two Phase 1 studies in patients with advanced or metastatic solid tumors, including patients with active CNS disease. Here we summarize the overall safety and report the antitumor activity of entrectinib in a cohort of patients with tumors harboring NTRK1/2/3, ROS1, or ALK gene fusions, naïve to prior TKI treatment targeting the specific gene, and who were treated at doses that achieved therapeutic exposures consistent with the RP2D...
February 9, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/28169866/low-grade-neuroendocrine-carcinoma-of-the-skin-primary-cutaneous-carcinoid-tumor-as-a-distinctive-entity-of-cutaneous-neuroendocrine-tumors-a-clinicopathologic-study-of-3-cases-with-literature-review
#13
Keisuke Goto, Takashi Anan, Takashi Nakatsuka, Yo Kaku, Takaki Sakurai, Takaya Fukumoto, Tetsunori Kimura, Arihiro Shibata
There is scarcity of information on primary cutaneous low-grade neoplasms commonly known as carcinoid tumors, owing to their rarity. The authors present 3 cases that were named "low-grade neuroendocrine carcinoma of the skin" (LGNECS). These occurred in the dermis and subcutis of the anterior chest or the inguinal region in the elderly. Histologically, the tumors showed infiltrating proliferation of nests of various sizes, with low-grade neuroendocrine cytologic features but without mucin production. All cases exhibited varying degrees of intraductal tumor components...
February 2, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28166590/the-effect-of-chrysin-loaded-plga-peg-on-metalloproteinase-gene-expression-in-mouse-4t1-tumor-model
#14
Zoheyr Mohammadi, Mohsen Sharif Zak, Khaled Seidi, Meisam Barati, Abolfazl Akbarzadeh, Nosratollah Zarghami
Despite the advances in medicine, cancer remains as one of the leading causes of the death worldwide. Through our previous study, the Chrysin loaded PGLA/PEG has been synthesized, and its physico-chemical properties were characterized. The aim of the present study was to evaluate the Chrysin loaded PGLA/PEG nanoparticle therapeutic effects on TIMP-1, TIMP-2, MMP-2, MMP-9 and PI3k expression in Mouse 4T1 breast tumor model.30 mice were enrolled in the current study, and the mice were randomly divided into 3 groups: untreated (n=10), Chrysin treatment (n=10) and Chrysin-loaded PLGA/PEG-based treatment (n=10)...
February 6, 2017: Drug Research
https://www.readbyqxmd.com/read/28161190/a-spontaneous-high-grade-undifferentiated-mammary-carcinoma-in-a-seven-week-old-female-rat
#15
Ana I Faustino-Rocha, Adelina Gama, Paula A Oliveira, Antonieta Alvarado, Rita Ferreira, Mário Ginja
The present work describes a rare case of a spontaneous high-grade carcinoma in a seven-week-old Sprague-Dawley female rat that had been included in the control group of an assay of mammary carcinogenesis. The mass was detected at 50days of age, it grown quickly and the animal was humanely sacrificed eight days later. The tumor was located in the left cervical region, in the vicinity of the left submandibular and sublingual glands. It was soft and reddish and had several dens with a bloody content. The tumor was PAS negative and exhibited immunostaining for ER-α...
February 1, 2017: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
https://www.readbyqxmd.com/read/28160858/erythro-austrobailignan-6-down-regulates-her2-egfr-integrin%C3%AE-3-expression-via-p38-activation-in-breast-cancer
#16
Jae-Hyun Han, Ha Jin Jeong, Han Na Lee, Yun Ju Kwon, Heung-Mook Shin, Yura Choi, Seongmi Lee, Seung Tack Oh, Dong-Il Kim, Songhee Jeon
BACKGROUND: Despite the benefits from different options of therapy for breast cancer, resistance of the disease to these therapies is rising and a novel agent is needed. Erythro-austrobailignan-6 (EA6) exhibits anti-cancer activity. However, the detailed anti-tumor mechanisms by which EA6 inhibits 4T-1 and MCF-7 cell growth have not been well studied. PURPOSE: In this study, we investigated the anti-proliferative and anti-tumor properties of EA6 on breast carcinoma and its accompanying mechanisms...
January 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28153132/salivary-gland-tumors-current-concepts-and-controversies
#17
REVIEW
Raja R Seethala
This current review focuses on current concepts and controversies for select key salivary gland epithelial neoplasms. Rather than the traditional organization of benign and malignant tumors, this review is structured around select key topics: biphasic tumors, mammary analogue secretory carcinoma, and the controversy surrounding polymorphous low-grade adenocarcinoma and cribriform adenocarcinoma of (minor) salivary gland origin.
March 2017: Surgical Pathology Clinics
https://www.readbyqxmd.com/read/28146052/expansion-of-t-cells-with-interleukin-21-for-adoptive-immunotherapy-of-murine-mammary-carcinoma
#18
Christine K Zoon, Wen Wan, Laura Graham, Harry D Bear
We previously demonstrated that culturing antigen-sensitized draining lymph node (DLN) lymphocytes from BALB/c mice in interleukin (IL)-7/15 after activation with bryostatin/ionomycin (B/I) is superior to culture in IL-2 for expansion, differentiation to cluster of differentiation (CD)8+ cells and anti-tumor activity. We sought to determine whether the substitution or addition of IL-21 to culture had a similar effect. DLN lymphocytes were antigen-sensitized with 4T1 mammary carcinoma 10 days prior to harvest, activated with B/I, and expanded in culture for 7 days with either IL-2, IL-21, IL-2/21, IL-7/15, or IL-7/15/21...
January 29, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28145547/garcinol-sensitizes-breast-cancer-cells-to-taxol-through-the-suppression-of-caspase-3-ipla2-and-nf-%C3%AE%C2%BAb-twist1-signaling-pathways-in-a-mouse-4t1-breast-tumor-model
#19
Shih-Hsin Tu, Yi-Shiou Chiou, Nagabhushanam Kalyanam, Chi-Tang Ho, Li-Ching Chen, Min-Hsiung Pan
Breast cancer is a significant threat to women's health and has high incidence and mortality. Metastasis in breast cancer patients is a major cause of cancer deaths among women worldwide. Clinical experience suggests that patients with metastatic triple-negative breast cancer (TNBC) relapse quickly and often have chemotherapy resistance. Taxol (paclitaxel) is an effective chemotherapeutic agent for treating metastatic breast cancer, but Taxol at high doses can cause adverse effects and recurrent resistance...
February 1, 2017: Food & Function
https://www.readbyqxmd.com/read/28144036/mammary-analog-secretory-carcinoma-low-grade-salivary-duct-carcinoma-and-mimickers-a-comparative-study
#20
Todd M Stevens, Andra O Kovalovsky, Claudia Velosa, Qiuying Shi, Qian Dai, Randall P Owen, Walter C Bell, Shi Wei, Pamela A Althof, Jennifer N Sanmann, Larissa Sweeny, William R Carroll, Gene P Siegal, Martin J Bullock, Margaret Brandwein-Gensler
No abstract text is available yet for this article.
February 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
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