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https://www.readbyqxmd.com/read/29054890/natural-killer-t-cell-immunotherapy-in-combination-with-chemotherapy-induced-immunogenic-cell-death-targets-metastatic-breast-cancer
#1
Simon Gebremeskel, Lynnea Lobert, Kaitlyn Tanner, Brynn Walker, Tora Oliphant, Livia E Clarke, Graham Dellaire, Brent Johnston
Natural killer T (NKT) cells are glycolipid-reactive lymphocytes that promote cancer control. In previous studies, NKT-cell activation improved survival and antitumor immunity in a post-surgical mouse model of metastatic breast cancer. Herein, we investigated whether NKT-cell activation could be combined with chemotherapeutic agents to augment therapeutic outcomes. Gemcitabine and cyclophosphamide analogs enhanced the potential immunogenicity of 4T1 mammary carcinoma cells by increasing the expression of antigen-presenting molecules (MHC-I, MHC-II, and CD1d) and promoting exposure or release of immunogenic cell death markers (calreticulin, HMGB1 and ATP)...
October 20, 2017: Cancer Immunology Research
https://www.readbyqxmd.com/read/29050357/oncomir-17-5p-alarm-signal-in-cancer
#2
REVIEW
Madhusudhan Reddy Bobbili, Robert M Mader, Johannes Grillari, Hanna Dellago
Soon after microRNAs entered the stage as novel regulators of gene expression, they were found to regulate -and to be regulated by- the development, progression and aggressiveness of virtually all human types of cancer. Therefore, miRNAs in general harbor a huge potential as diagnostic and prognostic markers as well as potential therapeutic targets in cancer. The miR-17-92 cluster was found to be overexpressed in many human cancers and to promote unrestrained cell growth, and has therefore been termed onco-miR-1...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29050279/ssecks-akap12-scaffolding-functions-suppress-b16f10-induced-peritoneal-metastasis-by-attenuating-cxcl9-10-secretion-by-resident-fibroblasts
#3
Masashi Muramatsu, Lingqiu Gao, Jennifer Peresie, Benjamin Balderman, Shin Akakura, Irwin H Gelman
SSeCKS/Gravin/AKAP12 (SSeCKS) is a kinase scaffolding protein known to suppress metastasis by attenuating tumor-intrinsic PKC- and Src-mediated signaling pathways [1]. In addition to downregulation in metastatic cells, in silico analyses identified SSeCKS downregulation in prostate or breast cancer-derived stroma, suggesting a microenvironmental cell role in controlling malignancy. Although orthotopic B16F10 and SM1WT1[Braf(V600E)] mouse melanoma tumors grew similarly in syngeneic WT or SSeCKS-null (KO) mice, KO hosts exhibited 5- to 10-fold higher levels of peritoneal metastasis, and this enhancement could be adoptively transferred by pre-injecting naïve WT mice with peritoneal fluid (PF), but not non-adherent peritoneal cells (PC), from naïve KO mice...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29050234/a-small-molecule-inhibitor-targeting-the-aurkc-i%C3%AE%C2%BAb%C3%AE-interaction-decreases-transformed-growth-of-mda-mb-231-breast-cancer-cells
#4
Eun Hee Han, Jin-Young Min, Shin-Ae Yoo, Sung-Joon Park, Yun-Jeong Choe, Hee Sub Yun, Zee-Won Lee, Sun Woo Jin, Hyung Gyun Kim, Hye Gwang Jeong, Hyun Kyoung Kim, Nam Doo Kim, Young-Ho Chung
The Aurora kinases, Aurora A (AURKA), Aurora B (AURKB), and Aurora C (AURKC), are serine/threonine kinases required for the control of mitosis (AURKA and AURKB) or meiosis (AURKC). Several Aurora kinase inhibitors are being investigated as novel anticancer therapeutics. Recent studies demonstrated that AURKC activation contributes to breast cancer cell transformation. Therefore, AURKC is both a promising marker and therapeutic target for breast cancer; however, its signaling network has not been fully characterized...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29048993/personalized-risk-prediction-in-clinical-oncology-research-applications-and-practical-issues-using-survival-trees-and-random-forests
#5
Chen Hu, Jon Arni Steingrimsson
A crucial component of making individualized treatment decisions is to accurately predict each patient's disease risk. In clinical oncology, disease risks are often measured through time-to-event data, such as overall survival and progression/recurrence-free survival, and are often subject to censoring. Risk prediction models based on recursive partitioning methods are becoming increasingly popular largely due to their ability to handle nonlinear relationships, higher-order interactions, and/or high-dimensional covariates...
October 19, 2017: Journal of Biopharmaceutical Statistics
https://www.readbyqxmd.com/read/29048660/canonical-and-non-canonical-wnt-signaling-in-cancer-stem-cells-and-their-niches-cellular-heterogeneity-omics-reprogramming-targeted-therapy-and-tumor-plasticity-review
#6
Masaru Katoh
Cancer stem cells (CSCs), which have the potential for self-renewal, differentiation and de-differentiation, undergo epigenetic, epithelial-mesenchymal, immunological and metabolic reprogramming to adapt to the tumor microenvironment and survive host defense or therapeutic insults. Intra-tumor heterogeneity and cancer-cell plasticity give rise to therapeutic resistance and recurrence through clonal replacement and reactivation of dormant CSCs, respectively. WNT signaling cascades cross-talk with the FGF, Notch, Hedgehog and TGFβ/BMP signaling cascades and regulate expression of functional CSC markers, such as CD44, CD133 (PROM1), EPCAM and LGR5 (GPR49)...
September 19, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/29048611/human-cytomegalovirus-infection-enhances-cell-proliferation-migration-and-upregulation-of-emt-markers-in-colorectal-cancer-derived-stem-cell-like-cells
#7
Wan Huai Teo, Hsin-Pai Chen, Jason C Huang, Yu-Jiun Chan
Increasing evidence suggests a link between persistent human cytomegalovirus (HCMV) infection and cancer. Although the role of HCMV in cancer is still elusive, recent studies revealed the presence of HCMV nucleic acids and proteins in different cancer types such as glioblastoma, colorectal, breast, and prostate cancers, and neuroblastoma. Although HCMV may not be directly associated with the neoplastic transformation, the presence of HCMV DNA in the tumorous tissue has been associated with altered clinical outcomes in cancer patients...
September 25, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/29048610/evidence-of-lateral-transmission-of-aggressive-features-between-different-types-of-breast-cancer-cells
#8
Nancy Adriana Espinoza-Sánchez, Eduardo Vadillo, Juan Carlos Balandrán, Alberto Monroy-García, Rosana Pelayo, Ezequiel M Fuentes-Pananá
Breast cancer (BrC) is a major public health problem worldwide. The intra-tumoral heterogeneity and tumor cell plasticity importantly contribute to disease progression and treatment failure. However, the dynamic interactions between different tumor clones, as well as their contribution to tumor aggressiveness are still poorly understood. In this study, we provide evidence of a lateral transmission of aggressive features between aggressive and non-aggressive tumor cells, consisting of gain of expression of cancer stem cell markers, increased expression of CXCL12 receptors CXCR4 and CXCR7 and increased invasiveness in response to CXCL12, which correlated with high levels of secretion of pro-inflammatory mediators G-CSF, GM-CSF, MCP-1, IL-8 and metalloproteinases 1 and 2 by the aggressive cells...
September 19, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/29042771/styrene-maleic-acid-encapsulated-rl71-micelles-suppress-tumor-growth-in-a-murine-xenograft-model-of-triple-negative-breast-cancer
#9
Orleans Martey, Mhairi Nimick, Sebastien Taurin, Vignesh Sundararajan, Khaled Greish, Rhonda J Rosengren
Patients with triple negative breast cancer have a poor prognosis due in part to the lack of targeted therapies. In the search for novel drugs, our laboratory has developed a second-generation curcumin derivative, 3,5-bis(3,4,5-trimethoxybenzylidene)-1-methylpiperidine-4-one (RL71), that exhibits potent in vitro cytotoxicity. To improve the clinical potential of this drug, we have encapsulated it in styrene maleic acid (SMA) micelles. SMA-RL71 showed improved biodistribution, and drug accumulation in the tumor increased 16-fold compared to control...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29041983/pak5-mediated-phosphorylation-and-nuclear-translocation-of-nf-%C3%AE%C2%BAb-p65-promotes-breast-cancer-cell-proliferation-in-vitro-and-in-vivo
#10
Ying-Chun Zhang, Fu-Chun Huo, Lu-Lu Wei, Chan-Chan Gong, Yao-Jie Pan, Jie Mou, Dong-Sheng Pei
BACKGROUND: Abnormal proliferation is significantly associated with the promotion of malignant tumor. Growing evidence suggest that the signal pathways of p21(cdc42/rac1)-activated kinase 5 (PAK5) have been found in various tumor progression, however, the role of PAK5 in breast cancer remains largely unclear. METHODS: We evaluated PAK5 and p65 staining in breast cancer tissues (BCTs) and paired non-cancerous tissues (NTs) using tissue microarray (TMA) technology...
October 17, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/29041905/clinicopathological-and-prognostic-significance-of-programmed-death-ligand-1-expression-in-breast-cancer-a-meta-analysis
#11
Hye Min Kim, Jinae Lee, Ja Seung Koo
BACKGROUND: Programmed cell death-ligand 1 (PD-L1) may be a useful molecule for targeted immunotherapy. Therefore, this meta-analysis aimed to investigate PD-L1 expression in breast cancer and its associations with clinicopathological factors and outcomes, which may help determine whether PD-L1 expression is a useful prognostic marker. METHODS: The Medline Ovid, Cochrane, PubMed, Google Scholar, and Web of Knowledge databases were searched for studies that evaluated the prognostic or clinicopathological significance of PD-L1 expression in patients with breast cancer, and reported at least one survival-related outcome...
October 17, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29039569/baicalin-inhibits-the-metastasis-of-highly-aggressive-breast-cancer-cells-by-reversing-epithelial-to-mesenchymal-transition-by-targeting-%C3%AE-catenin-signaling
#12
Tao Zhou, Aijie Zhang, Ge Kuang, Xia Gong, Rong Jiang, Dan Lin, Jie Li, Hongzhong Li, Xiang Zhang, Jingyuan Wan, Hongyuan Li
Metastasis is the main cause of death in breast cancer patients, which is due partly to the lack of effective treatment. Baicalin, a flavonoid compound isolated from the roots of Scutellaria lateriflora Georgi (Huang Qin), has recently been confirmed as an effective agent for the treatment of a variety of cancers. Yet, the effects and underlying molecular mechanisms of baicalin in regards to the metastasis of breast cancer remain unclear. In the present study, we found that baicalin had the potential to suppress the migration and invasion of highly aggressive breast cancer cells in a dose-dependent manner but had no impact on the viability of these cancer cells...
September 28, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29037255/objective-measurement-and-clinical-significance-of-ido1-protein-in-hormone-receptor-positive-breast-cancer
#13
Daniel E Carvajal-Hausdorf, Nikita Mani, Vamsidhar Velcheti, Kurt A Schalper, David L Rimm
BACKGROUND: Immunostimulatory therapies targeting immune-suppressive pathways produce durable responses in advanced solid tumors. Indoleamine 2,3-dioxygenase (IDO) is the rate-limiting oxidoreductase that catalyzes the degradation of tryptophan to kynurenine. IDO induces immune tolerance by downregulating CD8+ and effector CD4+ T cell responses. IDO1, the most active isoform, is expressed in diverse tumor types and can be targeted using small molecule inhibitors. We used an objective, in situ assay to measure IDO1 in a collection of hormone receptor-positive breast cancers (HR+ BC)...
October 17, 2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/29035379/lobular-carcinoma-in-situ-and-invasive-lobular-breast-cancer-are-characterized-by-enhanced-expression-of-transcription-factor-ap-2%C3%AE
#14
Mieke Raap, Malte Gronewold, Henriette Christgen, Silke Glage, Mohammad Bentires-Alj, Shany Koren, Patrick W Derksen, Mirjam Boelens, Jos Jonkers, Ulrich Lehmann, Friedrich Feuerhake, Elna Kuehnle, Oleg Gluz, Ronald Kates, Ulrike Nitz, Nadia Harbeck, Hans H Kreipe, Matthias Christgen
Transcription factor AP-2β (TFAP2B) regulates embryonic organ development and is overexpressed in alveolar rhabdomyosarcoma, a rare childhood malignancy. Gene expression profiling has implicated AP-2β in breast cancer (BC). This study characterizes AP-2β expression in the mammary gland and in BC. AP-2β protein expression was assessed in the normal mammary gland epithelium, in various reactive, metaplastic and pre-invasive neoplastic lesions and in two clinical BC cohorts comprising >2000 patients. BCs from various genetically engineered mouse (GEM) models were also evaluated...
October 16, 2017: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/29034935/hedgehog-mesenchyme-gene-signature-identifies-bi-modal-prognosis-in-luminal-and-basal-breast-cancer-sub-types
#15
Wandaliz Torres-García, Maribella Domenech
Hedgehog signaling (Hh) has been shown to be hyper-activated in several cancers. However, active Hh signaling can promote or inhibit tumor growth; thus identification of markers beyond main canonical Hh target genes is needed to improve patient selection and clinical outcome in response to Hh inhibitors. Cancer-associated fibroblasts (CAFs) have been linked with tumor progression and beneficial response to Hh inhibitors. Thus, we hypothesized that genes associated with Hh-activated CAFs can be used for stratification of tumors that will benefit from Hh inhibitors...
October 16, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/29034816/clinical-performance-of-loci%C3%A2-based-tumor-marker-assays-for-tumor-markers-ca-15-3-ca-125-cea-ca-19-9-and-afp-in-gynecological-cancers
#16
Ramona C Dolscheid-Pommerich, Mignon Keyver-Paik, Thomas Hecking, Walther Kuhn, Gunther Hartmann, Birgit Stoffel-Wagner, Stefan Holdenrieder
Evidence is sparse regarding the clinical performance of luminescent oxygen channeling immunoassays-based tumor marker assays in gynecological cancer. Analyzing serum samples of 336 patients with Dimension™Vista1500, we investigated the diagnostic power of carbohydrate antigen 15-3, carbohydrate antigen 125, carcinoembryonic antigen, carbohydrate antigen 19-9, and alpha-fetoprotein in patients suffering from different types of gynecological cancer and precancerous gynecological diseases and compared findings to appropriate control groups...
October 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/29034621/-circular-rnas-and-their-roles-in-tumorigenesis
#17
Yi Xie, Tianwen Li, Xiaoyan Mo, Junming Guo
Recently, with the development of RNA research techniques, a wide variety of circular RNAs (circRNAs) have been discovered and some of them are confirmed to have crucial biological functions. CircRNAs arise from exons (i.e. exonic circRNAs) or introns (i.e. intronic circRNAs). Acting as microRNA sponges or combining with proteins, circRNAs participate in the regulation of gene expression and influence the activity of some proteins. In addition, some circRNAs even encode proteins. More importantly, several circRNAs play a key role in the occurrence and progression of some tumors, including stomach, liver, colon, breast, cervical, and ovarian cancers...
November 25, 2016: Sheng Wu Gong Cheng Xue Bao, Chinese Journal of Biotechnology
https://www.readbyqxmd.com/read/29033607/profiling-of-gene-expression-regulated-by-17%C3%AE-estradiol-and-tamoxifen-in-estrogen-receptor-positive-and-estrogen-receptor-negative-human-breast-cancer-cell-lines
#18
Nelson Rangel, Victoria E Villegas, Milena Rondón-Lagos
One area of great importance in breast cancer (BC) research is the study of gene expression regulated by both estrogenic and antiestrogenic agents. Although many studies have been performed in this area, most of them have only addressed the effects of 17β-estradiol (E2) and tamoxifen (TAM) on MCF7 cells. This study aimed to determine the effect of low doses of E2 and TAM on the expression levels of 84 key genes, which are commonly involved in breast carcinogenesis, in four BC cell lines differentially expressing estrogen receptor (ER) α and HER2 (MCF7, T47D, BT474, and SKBR3)...
2017: Breast Cancer: Targets and Therapy
https://www.readbyqxmd.com/read/29028311/radiolabeled-antibody-conjugated-manganese-oxide-nanoparticles-for-tumor-vasculature-targeted-positron-emission-tomography-and-magnetic-resonance-imaging
#19
Yonghua Zhan, Sixiang Shi, Emily B Ehlerding, Stephen A Graves, Shreya Goel, Jonathan W Engle, Jimin Liang, Jie Tian, Weibo Cai
Manganese oxide nanoparticles (Mn3O4 NPs) have attracted a great deal of attention in the field of biomedical imaging because of their ability to create an enhanced imaging signal in MRI as novel potent T1 contrast agents. In this study, we present tumor vasculature-targeted imaging in mice using Mn3O4 NPs through conjugation to the anti-CD105 antibody TRC105 and radionuclide copper-64 ((64)Cu, t1/2: 12.7 h). The Mn3O4 conjugated NPs, (64)Cu-NOTA-Mn3O4@PEG-TRC105, exhibited sufficient stability in vitro and in vivo...
October 13, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29028085/nestin-and-cd146-expression-in-metaplastic-breast-cancer-stem-cell-therapy-in-need-lessons-reported-from-a-male-patient
#20
A Tampakis, E C Tampaki, D Trafalis, A Nonni, K Kontzoglou, E Patsouris, M Kontos, G Kouraklis
OBJECTIVE: Metaplastic breast carcinomas represent a rare subtype of breast cancer exhibiting aggressive clinical features. They appear as highly chemoresistant tumors, therefore showing poor outcome and high rates of local recurrence or distant metastasis. CASE REPORT: A 37-year-old greek man was referred to our hospital for evaluation of a locally advanced, ulcerated, fixed, irregular and hard in consistency mass covering his left breast and chest wall. Further work out with CT and biopsy of the tumor revealed a triple negative metaplastic breast cancer classified as cT4cN3cM1...
September 2017: European Review for Medical and Pharmacological Sciences
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