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https://www.readbyqxmd.com/read/29774091/sensitive-molecular-detection-of-small-nodal-metastasis-in-uterine-cervical-cancer-using-hpv16-e6-ck19-muc1-cancer-biomarkers
#1
Vanessa Samouëlian, Nawel Mechtouf, Eric Leblanc, Guillaume B Cardin, Valérie Lhotellier, Denis Querleu, Françoise Révillion, Francis Rodier
Metastatic nodal involvement is a critical prognostic factor in uterine cervical cancer (UCC). To improve current methods of detecting UCC metastases in lymph nodes (LNs), we used quantitative PCR (qPCR) to assess mRNA expression of potential metastatic biomarkers. We found that expression of HPV16-E6, cytokeratin19 (CK19), and mucin1 (MUC1) is consistently upregulated in tumors and metastatic tissues, supporting a role for these genes in UCC progression. These putative biomarkers were able to predict the presence of histologically positive metastatic LNs with respective sensitivities and specificities of 82% and 99% (CK19), 76% and 95% (HPV16-E6), and 76% and 78% (MUC1)...
April 24, 2018: Oncotarget
https://www.readbyqxmd.com/read/29773228/changes-in-mucins-and-matrix-metalloproteases-in-the-endometrium-of-early-pregnant-alpacas-vicugna-pacos
#2
Daniela E Barraza, Renato Zampini, Silvana A Apichela, Joel I Pacheco, Martin E Argañaraz
South American Camelids (SAC) have unique reproductive features, one of which is that 98% of the pregnancies develop in the left uterine horn. Furthermore, early pregnancy is an uncharacterized process in these species, especially in regard to the ultrastructural, biochemical and genetic changes that the uterine epithelial surface undergoes to allow embryo implantation. The present study describes the uterine horn luminal surface and the characteristics of the mucinous glycocalyx in non-pregnant and early pregnant (15 days) female alpacas...
May 14, 2018: Acta Histochemica
https://www.readbyqxmd.com/read/29761849/muc1-c-drives-myeloid-leukaemogenesis-and-resistance-to-treatment-by-a-survivin-mediated-mechanism
#3
Dina Stroopinsky, Hasan Rajabi, Myrna Nahas, Jacalyn Rosenblatt, Maryam Rahimian, Athalia Pyzer, Ashujit Tagde, Akriti Kharbanda, Salvia Jain, Turner Kufe, Rebecca K Leaf, Eleni Anastasiadou, Michal Bar-Natan, Shira Orr, Maxwell D Coll, Kristen Palmer, Adam Ephraim, Leandra Cole, Abigail Washington, Donald Kufe, David Avigan
Acute myeloid leukaemia (AML) is an aggressive haematological malignancy with an unmet need for improved therapies. Responses to standard cytotoxic therapy in AML are often transient because of the emergence of chemotherapy-resistant disease. The MUC1-C oncoprotein governs critical pathways of tumorigenesis, including self-renewal and survival, and is aberrantly expressed in AML blasts and leukaemia stem cells (LSCs). However, a role for MUC1-C in linking leukaemogenesis and resistance to treatment has not been described...
May 15, 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29760958/targeting-muc1-c-suppresses-bcl2a1-in-triple-negative-breast-cancer
#4
Masayuki Hiraki, Takahiro Maeda, Neha Mehrotra, Caining Jin, Maroof Alam, Audrey Bouillez, Tsuyoshi Hata, Ashujit Tagde, Amy Keating, Surender Kharbanda, Harpal Singh, Donald Kufe
B-cell lymphoma 2-related protein A1 (BCL2A1) is a member of the BCL-2 family of anti-apoptotic proteins that confers resistance to treatment with anti-cancer drugs; however, there are presently no agents that target BCL2A1. The MUC1-C oncoprotein is aberrantly expressed in triple-negative breast cancer (TNBC) cells, induces the epithelial-mesenchymal transition (EMT) and promotes anti-cancer drug resistance. The present study demonstrates that targeting MUC1-C genetically and pharmacologically in TNBC cells results in the downregulation of BCL2A1 expression...
2018: Signal Transduction and Targeted Therapy
https://www.readbyqxmd.com/read/29759176/carbon-nanosphere-based-fluorescence-aptasensor-for-targeted-detection-of-breast-cancer-cell-mcf-7
#5
Dandan Yang, Mei Liu, Jing Xu, Chao Yang, Xiaoxiao Wang, Yongbing Lou, Nongyue He, Zhifei Wang
In this work, carbon nanosphere (CNS)-based fluorescence "turn off/on" aptasensor was developed for targeted detection of breast cancer cell MCF-7 by conjugation with FAM (a dye)-labeled mucin1 (MUC1) aptamer P0 (P0-FAM), which can recognize MUC1 protein overexpressed on the surface of MCF-7. Different from other carbon based fluorescence quenching materials, CNSs prepared by the carbonization of glucose not only have the high fluorescence quenching efficiency (98.8%), but also possess negligible cytotoxicity (in the concentration range of 0-1 mg/mL, which is 10 times higher than that of traditional carbon nanotubes or graphene oxide (0-100 µg/mL))...
August 1, 2018: Talanta
https://www.readbyqxmd.com/read/29747685/car-t-cell-therapy-for-breast-cancer-harnessing-the-tumor-milieu-to-drive-t-cell-activation
#6
Pradip Bajgain, Supannikar Tawinwung, Lindsey D'Elia, Sujita Sukumaran, Norihiro Watanabe, Valentina Hoyos, Premal Lulla, Malcolm K Brenner, Ann M Leen, Juan F Vera
BACKGROUND: The adoptive transfer of T cells redirected to tumor via chimeric antigen receptors (CARs) has produced clinical benefits for the treatment of hematologic diseases. To extend this approach to breast cancer, we generated CAR T cells directed against mucin1 (MUC1), an aberrantly glycosylated neoantigen that is overexpressed by malignant cells and whose expression has been correlated with poor prognosis. Furthermore, to protect our tumor-targeted cells from the elevated levels of immune-inhibitory cytokines present in the tumor milieu, we co-expressed an inverted cytokine receptor linking the IL4 receptor exodomain with the IL7 receptor endodomain (4/7ICR) in order to transform the suppressive IL4 signal into one that would enhance the anti-tumor effects of our CAR T cells at the tumor site...
May 10, 2018: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/29746957/in-vivo-inhibition-of-circulating-tumor-cells-by-two-apoptosis-promoting-circular-aptamers-with-enhanced-specificity
#7
Haiyan Dong, Longyu Han, Jie Wang, Jingjing Xie, Yu Gao, Fangwei Xie, Lee Jia
Circulating tumor cells (CTCs) are known as the root cause of cancer metastasis that accounts for 90% of cancer death. Owing to the rarity of blood CTCs and their microenvironmental complexity, the existing biotechnology could not precisely capture and apoptosize CTCs in vivo for cancer metastasis prevention. Here, we designed two double strand circular aptamers aimed to simultaneously target MUC1 and HER2 surface biomarkers on mesenchymal cancer cells. The circular aptamers are composed of a capture arm for binding and seizing CTCs and a circular body for resisting degradation by exonucleases...
May 7, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29736668/immunohistochemical-predictors-for-intestinal-and-pancreatobiliary-types-of-adenocarcinoma-of-the-ampulla-of-vater
#8
João Paulo Lemos da Silveira Santos, Carla Jorge Machado, Eduardo Paulino Junior, João Bernardo Sancio Rocha Rodrigues, Paula Teixeira Vidigal, Vivian Resende
OBJECTIVES: To investigate immunohistochemical predictors for intestinal and pancreatobiliary types of adenocarcinoma of ampulla of Vater and identify clinicopathological characteristics associated with the histological types and patient survival. METHODS: Immunohistochemical markers included MUC1, MUC2, MUC5AC, CDX2, CK7, and CK20. The data were analyzed by univariate and multivariate methods. The two-step cluster method was used to determine the best immunohistochemical markers to discriminate the intestinal from the pancreatobiliary type...
May 7, 2018: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/29734875/clinical-value-of-a-diagnostic-score-for-colon-cancer-based-on-serum-cea-ca19-9-cytokeratin-1-and-mucin-1
#9
A M Attallah, M El-Far, A R Ibrahim, M A El-Desouky, M M Omran, M S Elbendary, K A Attallah, E R Qura, S O Abdallah
BACKGROUND: Although established markers such as CEA and CA19-9 are important for diagnosing early stages of colon cancer, they are not ideal. Developing promising markers include cytokeratin 1 (CK1) and mucin-1 (MUC1), but the combined value of each of these markers is unclear. We therefore evaluated the value of a combined laboratory-based score of these four markers in the diagnosis of colon cancer. METHODS: Two hundred patients who had undergone colonoscopic examination (150 colon cancer, 50 benign growths) were recruited...
May 8, 2018: British Journal of Biomedical Science
https://www.readbyqxmd.com/read/29710409/papillary-architecture-and-functional-characterization-of-mucosubstances-in-the-sheep-tongue
#10
Serkan Erdoğan, Hakan Sağsöz
This research aimed to reveal the general morphology and topographic distribution of lingual papillae, epithelial characteristics, mucosal structure, and glands with their mucin content in the sheep tongue, with consideration of species-specific characteristics. The tongues of ten sheep were analyzed for this purpose. Filiform and fungiform papillae existed within the borders of the ventral surface of the lingual apex. The majority of the filiform papillae had multiple secondary projections. Fungiform papillae were also seen on the lingual torus among lenticular papillae, as well as 6 to 10 circumvallate papillae arranged on its caudal border...
April 30, 2018: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29709661/effect-of-intermittent-shear-stress-on-corneal-epithelial-cells-using-an-in-vitro-flow-culture-model
#11
Ulrike Hampel, Fabian Garreis, Fabian Burgemeister, Nicole Eßel, Friedrich Paulsen
PURPOSE: The aim of this study was to establish and to evaluate an in vitro model for culturing human telomerase-immortalized corneal epithelial (hTCEpi) cells under adjustable medium flow mimicking the movements of the tear film on the ocular surface. METHODS: Using an IBIDI pump system, cells were cultured under unidirectional, continuous or oscillating, discontinuous medium flow. Cell surface and cytoskeletal architecture were investigated by scanning electron microscopy and immunofluorescence...
April 27, 2018: Ocular Surface
https://www.readbyqxmd.com/read/29709516/cancer-associated-fibroblasts-stimulated-interleukin-11-promotes-metastasis-of-gastric-cancer-cells-mediated-by-upregulation-of-muc1
#12
Xiaoxun Wang, Xiaofang Che, Chang Liu, Yibo Fan, Ming Bai, Kezuo Hou, Xiaonan Shi, Xiaojie Zhang, Bofang Liu, Chunlei Zheng, Yunpeng Liu, Xiujuan Qu
Cancer-associated fibroblasts (CAFs) are major components of the tumor stroma and regulators of tumor progression. However, the molecular mechanism by which CAFs promote gastric cancer progression should be further explored. In our study, we found that interleukin-11 (IL-11) secretion was significantly increased when CAFs were co-cultured with gastric cancer cells. Co-culture system-derived IL-11 promoted the migration and invasion of gastric cancer cells, whereas the increase of migration and invasion was attenuated by a neutralizing antibody of IL-11 or inhibition of JAK/STAT3 and MAPK/ERK pathways with specific inhibitors...
April 27, 2018: Experimental Cell Research
https://www.readbyqxmd.com/read/29698701/mucinous-intrahepatic-cholangiocarcinoma-a-distinct-variant
#13
Zhikai Chi, Amarpreet Bhalla, Omer Saeed, Liang Cheng, Kendra Curless, Hanlin L Wang, Deepa T Patil, Jingmei Lin
Mucinous variant of intrahepatic cholangiocarcinoma (iCC) is rare, and its clinicopathological features and prognosis are far less clear. Six patients who had iCCs with more than 50% of mucinous component and 79 conventional iCCs were included in the study. The mean size of mucinous and conventional iCCs was 6.2cm and 6.0cm, respectively. The majority of patients (83%) with mucinous iCC presented at T3 stage or above, compared to 28% of the conventional group (p<0.01). Three patients with mucinous iCC (50%) died within 1year...
April 23, 2018: Human Pathology
https://www.readbyqxmd.com/read/29691386/toll-like-receptors-mediated-pathways-activate-inflammatory-responses-in-the-esophageal-mucosa-of-adult-eosinophilic-esophagitis
#14
Ángel Arias, María Vicario, David Bernardo, José M Olalla, Marina Fortea, Ana Montalban-Arques, Pilar Martínez-Fernández, Ana M González-Castro, Teresa Mota-Huertas, Laura Arias-González, Alfredo J Lucendo
OBJECTIVES: Esophageal microbiota and regulation of adaptive immunity are increasingly being investigated in eosinophilic esophagitis (EoE). Toll-like receptors (TLRs) play a central role in the initiation and maintenance of innate immune activity. Our objective was to characterize the esophageal and duodenal innate immune response in EoE and its modulation by dietary therapy. METHODS: Esophageal and duodenal biopsy samples were collected from 10 adults with untreated EoE, before and after effective treatment with a six-food elimination diet (SFED), and 10 controls with normal esophagus...
April 25, 2018: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/29685122/treatment-of-pancreatic-ductal-adenocarcinoma-with-tumor-antigen-specific-targeted-delivery-of-paclitaxel-loaded-plga-nanoparticles
#15
Shu-Ta Wu, Anthony J Fowler, Corey B Garmon, Adam B Fessler, Joshua D Ogle, Kajal R Grover, Bailey C Allen, Chandra D Williams, Ru Zhou, Mahboubeh Yazdanifar, Craig A Ogle, Pinku Mukherjee
BACKGROUND: Pancreatic ductal adenocarcinoma (PDA) remains the most aggressive cancers with a 5-year survival below 10%. Systemic delivery of chemotherapy drugs has severe side effects in patients with PDA and does not significantly improve overall survival rate. It is highly desirable to advance the therapeutic efficacy of chemotherapeutic drugs by targeting their delivery and increasing accumulation at the tumor site. MUC1 is a membrane-tethered glycoprotein that is aberrantly overexpressed in > 80% of PDA thus making it an attractive antigenic target...
April 23, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29682330/yes-associated-protein-yap-in-pancreatic-cancer-at-the-epicenter-of-a-targetable-signaling-network-associated-with-patient-survival
#16
Enrique Rozengurt, James Sinnett-Smith, Guido Eibl
Pancreatic ductal adenocarcinoma (PDAC) is generally a fatal disease with no efficacious treatment modalities. Elucidation of signaling mechanisms that will lead to the identification of novel targets for therapy and chemoprevention is urgently needed. Here, we review the role of Yes-associated protein (YAP) and WW-domain-containing Transcriptional co-Activator with a PDZ-binding motif (TAZ) in the development of PDAC. These oncogenic proteins are at the center of a signaling network that involves multiple upstream signals and downstream YAP-regulated genes...
2018: Signal Transduction and Targeted Therapy
https://www.readbyqxmd.com/read/29677633/differences-in-the-bovine-milk-whey-proteome-between-early-pregnancy-and-the-estrous-cycle
#17
D Johnston, I Malo Estepa, H A Ebhardt, M A Crowe, M G Diskin
Current bovine pregnancy detection methods are not reliable until at least day 28 post artificial insemination (AI). The bovine estrous cycle is approximately 21 days; consequently, producers miss an opportunity to rebreed at the next estrous event. Therefore, commercial interest exists for the discovery of novel biomarkers of pregnancy which could reliably detect pregnancy status at or before day 21 of pregnancy. The objective of the present study was to use liquid chromatography tandem mass spectrometry (LC-MS/MS) to perform a global, label-free, proteomics study on (i) milk whey and (ii) extracellular vesicle (EV) enriched milk whey samples, from day 21 of pregnancy, compared with day 21 of the estrous cycle, in order to identify potential protein biomarkers of early pregnancy...
April 12, 2018: Theriogenology
https://www.readbyqxmd.com/read/29676561/highly-stable-mesoporous-luminescence-functionalized-mof-with-excellent-electrochemiluminescence-property-for-ultrasensitive-immunosensor-construction
#18
Gui-Bing Hu, Cheng-Yi Xiong, Wen-Bin Liang, Xiao-Shan Zeng, Hui-Ling Xu, Yang Yang, Li-Ying Yao, Ruo Yuan, Dong-Rong Xiao
In this work, a novel mesoporous luminescence-functionalized metal-organic framework (Ru-PCN-777) with high stability and excellent electrochemiluminescence (ECL) performance was synthesized by immobilizing Ru(bpy)2(mcpbpy)2+ on the Zr6 cluster of PCN-777 via a strong coordination bond between Zr4+ and -COO-. Consequently, the Ru(bpy)2(mcpbpy)2+ could not only cover the surface of PCN-777, but also grafted into the interior of PCN-777, which greatly increased the loading amount of Ru(bpy)2(mcpbpy)2+ and effectively prevented the leaching of the Ru(bpy)2(mcpbpy)2+ resulting in a stable and high ECL response...
April 20, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29676354/diagnostic-and-prognostic-impact-of-mucin-1-6-expression-in-non-small-cell-lung-cancer
#19
William Sterlacci, Michael Fiegl, Lothar Veits, Alexandar Tzankov
Background: The prognostic significance and clinico-pathological characterization of mucin (MUC) expression in non-small cell lung cancer (NSCLC) is controversial and little studied. Aims: This study aims at elucidating this issue on the largest and most detailed cohort so far. Settings and Design: We examined the expression of MUC 1, 2, 4, 5AC and 6 on 371, well documented, surgically resected NSCLC cases. Materials and Methods: Immunohistochemical results were correlated with several of our previously studied, relevant parameters on this cohort including a follow-up period of up to 20 years...
April 2018: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/29673594/lincrna-ror-mir-145-promote-invasion-and-metastasis-in-triple-negative-breast-cancer-via-targeting-muc1
#20
Jianli Ma, Yue Yang, Desheng Huo, Zanyu Wang, Xiaoyu Zhai, Jing Chen, Huixin Sun, Weiwei An, Jing Jie, Pengxiang Yang
Triple-negative breast cancer (TNBC) was associated with high rates of cancer recurrence and metastasis and currently no available molecularly target. Accumulating evidences have established the importance of lincRNA-ROR as a marker of cancers. In order to better understand the mechanism of lincRNA-ROR in TNBC, we provided a novel molecular target into the regulatory invasion and metastasis in present research. We found that lincRNA-ROR was upregulated in TNBC cell lines and tissue samples. The aberrant expression of lincRNA-ROR was shown to increase invasion and metastasis in MDA-MB-231 and loss of function by siRNA reverse these process...
April 16, 2018: Biochemical and Biophysical Research Communications
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