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https://www.readbyqxmd.com/read/29141378/-the-expression-and-significance-of-microtubule-driven-protein-kif2a-in-epithelial-ovarian-cancer
#1
Y Z Xu, X M Cao, Q Ye, S Zhang, Y Q Zhang, Z J Shen
Objective: To investigate the protein and mRNA expression of KIF2A in ovarian cancer, and to investigate the migration and invasion ability changes in ovarian cancer cell line HO-8910 transfected by KIF2A-siRNA. Methods: Immunohistochemical method was used to detect the expression of KIF2A in 30 cases of ovarian cancer and 20 cases of ovarian normal tissues. The expression of KIF2A mRNA was detected by RT-PCR. The mRNA and protein expression of KIF2A in cell line HO-8910 was detected by RT-PCR and Western blot after transfected by KIF2A-siRNA in vitro...
November 14, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29141306/-methods-and-advances-in-the-research-of-lymphatics-in-the-head-and-neck
#2
R Guo, J Tian, Y Jia, P F He, R X Jin, J Guo, B Q Wang
The lymphatic system plays an important role in human health and disease. In addition to a role in the immune response, the lymphatics can also serve as a pathway for cancer metastasis.Head and neck squamous cell carcinoma (HNSCC) is one of the most common cancers.In the case where the primary focus has been controlled, cervical lymph node metastasis is one of the most important factors affecting the prognosis of head and neck cancer.Thus, understanding the anatomy of the lymphatic system is of paramount importance in predicting cancer metastasis and to perform proper lymph node dissection in cancer patients...
November 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/29141252/musashi1-promotes-non-small-cell-lung-carcinoma-malignancy-and-chemoresistance-via-activating-the-akt-signaling-pathway
#3
Yaoguo Lang, Xianglong Kong, Changjun He, Fengjiao Wang, Benkun Liu, Shibo Zhang, Jinfeng Ning, Kaibin Zhu, Shidong Xu
BACKGROUND/AIMS: Lung cancer is one of the leading causes for cancer mortality. The poor therapeutic outcome of non-small cell lung carcinoma (NSCLC) is mainly due to late diagnosis and chemoresistance. In this study, we investigated the role of Musashi1 (MSI1) in NSCLC malignancy and chemoresistance. METHODS: Colony formation, MTT, glucose uptake and lactate production assays were employed to study lung cancer cell malignancy and chemoresistance. RT-PCR and Western blotting were performed to detect mRNA and protein expressions of genes...
November 15, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29141249/%C3%AE-catenin-cooperates-with-creb-binding-protein-to-promote-the-growth-of-tumor-cells
#4
Wendan Yu, Liren Li, Fufu Zheng, Wenjing Yang, Shilei Zhao, Chunfang Tian, Wenwen Yin, Yiming Chen, Wei Guo, Lijuan Zou, Wuguo Deng
BACKGROUND/AIMS: β-catenin is an integral component of the canonical Wnt signaling pathway, and its mutations are an autosomal recessive cause of colorectal cancer (CRC), medulloblastoma (MDB), and ovarian cancer. Nevertheless, little is known about its function in lung cancers. METHODS: We first knocked down β-catenin by siRNA to investigate its effects on lung cancer cell proliferation, migration and apoptosis. Then we verified the interaction between β-catenin and CREB binding protein (CBP) by immunofluoresence and co-immunoprecipition assays...
November 15, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29141226/a-pan-cancer-analysis-of-the-expression-and-clinical-relevance-of-small-nucleolar-rnas-in-human-cancer
#5
Jing Gong, Yajuan Li, Chun-Jie Liu, Yu Xiang, Chunlai Li, Youqiong Ye, Zhao Zhang, David H Hawke, Peter K Park, Lixia Diao, John A Putkey, Liuqing Yang, An-Yuan Guo, Chunru Lin, Leng Han
Increasing evidence has demonstrated that small nucleolar RNAs (snoRNAs) play important roles in tumorigenesis. We systematically investigated the expression landscape and clinical relevance of snoRNAs in >10,000 samples across 31 cancer types from The Cancer Genome Atlas. We observed overall elevated expression of snoRNAs and their ribonucleoproteins in multiple cancer types. We showed complex regulation of snoRNA expression by their host genes, copy number variation, and DNA methylation. Unsupervised clustering revealed that the snoRNA expression subtype is highly concordant with other molecular/clinical subtypes...
November 14, 2017: Cell Reports
https://www.readbyqxmd.com/read/29141221/chemotherapy-induced-depletion-of-oct4-positive-cancer-stem-cells-in-a-mouse-model-of-malignant-testicular-cancer
#6
Timothy M Pierpont, Amy M Lyndaker, Claire M Anderson, Qiming Jin, Elizabeth S Moore, Jamie L Roden, Alicia Braxton, Lina Bagepalli, Nandita Kataria, Hilary Zhaoxu Hu, Jason Garness, Matthew S Cook, Blanche Capel, Donald H Schlafer, Teresa Southard, Robert S Weiss
Testicular germ cell tumors (TGCTs) are among the most responsive solid cancers to conventional chemotherapy. To elucidate the underlying mechanisms, we developed a mouse TGCT model featuring germ cell-specific Kras activation and Pten inactivation. The resulting mice developed malignant, metastatic TGCTs composed of teratoma and embryonal carcinoma, the latter of which exhibited stem cell characteristics, including expression of the pluripotency factor OCT4. Consistent with epidemiological data linking human testicular cancer risk to in utero exposures, embryonic germ cells were susceptible to malignant transformation, whereas adult germ cells underwent apoptosis in response to the same oncogenic events...
November 14, 2017: Cell Reports
https://www.readbyqxmd.com/read/29141220/phosphorylation-and-ubiquitination-regulate-protein-phosphatase-5-activity-and-its-prosurvival-role-in-kidney-cancer
#7
Natela Dushukyan, Diana M Dunn, Rebecca A Sager, Mark R Woodford, David R Loiselle, Michael Daneshvar, Alexander J Baker-Williams, John D Chisholm, Andrew W Truman, Cara K Vaughan, Timothy A Haystead, Gennady Bratslavsky, Dimitra Bourboulia, Mehdi Mollapour
The serine/threonine protein phosphatase 5 (PP5) regulates multiple cellular signaling networks. A number of cellular factors, including heat shock protein 90 (Hsp90), promote the activation of PP5. However, it is unclear whether post-translational modifications also influence PP5 phosphatase activity. Here, we show an "on/off switch" mechanism for PP5 regulation. The casein kinase 1δ (CK1δ) phosphorylates T362 in the catalytic domain of PP5, which activates and enhances phosphatase activity independent of Hsp90...
November 14, 2017: Cell Reports
https://www.readbyqxmd.com/read/29141219/preventive-inhibition-of-liver-tumorigenesis-by-systemic-activation-of-innate-immune-functions
#8
Jin Lee, Rui Liao, Gaowei Wang, Bi-Huei Yang, Xiaolin Luo, Nissi M Varki, Shuang-Jian Qiu, Bing Ren, Wenxian Fu, Gen-Sheng Feng
Liver cancer has become the second most deadly malignant disease, with no efficient targeted or immune therapeutic agents available yet. While dissecting the roles of cytoplasmic signaling molecules in hepatocarcinogenesis using an inducible mouse gene targeting system, Mx1-cre, we identified a potent liver tumor-inhibitory effect of synthetic double-stranded RNA (dsRNA), polyinosinic-polycytidylic acid (pIC), an inducer of the Mx1-cre system. Injection of pIC at the pre-cancer stage robustly suppressed liver tumorigenesis either induced by chemical carcinogens or by Pten loss and associated hepatosteatosis...
November 14, 2017: Cell Reports
https://www.readbyqxmd.com/read/29141199/disruption-of-mitochondrial-function-as-mechanism-for-anti-cancer-activity-of-a-novel-mitochondriotropic-menadione-derivative
#9
José Teixeira, Ricardo Amorim, Katia Santos, Pedro Soares, Sandipan Datta, Gino A Cortopassi, Teresa L Serafim, Vilma A Sardão, Jorge Garrido, Fernanda Borges, Paulo J Oliveira
Menadione, also known as vitamin K3, is a 2-methyl-1,4 naphthoquinone with a potent cytotoxic activity mainly resulting from its quinone redox-cycling with production of reactive oxygen species (ROS). Although increased ROS generation is considered a relevant mechanism in cancer cell death, it may not be sufficiently effective to kill cancer cells due to phenotypic adaptations. Therefore, combining ROS-generating agents with other molecules targeting important cancer cell phenotypes can be an effective therapeutic strategy...
November 12, 2017: Toxicology
https://www.readbyqxmd.com/read/29141165/immunotherapy-for-unresectable-stage-iii-non-small-cell-lung-cancer
#10
EDITORIAL
Naiyer A Rizvi, Solange Peters
New England Journal of Medicine, Volume 377, Issue 20, Page 1986-1988, November 2017.
November 16, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/29141160/advanced-non-small-cell-lung-cancer
#11
LETTER
(no author information available yet)
New England Journal of Medicine, Volume 377, Issue 20, Page 1997-1999, November 2017.
November 16, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/29141148/plasmonically-enhanced-galactoxyloglucan-endowed-gold-nanoparticles-exposed-tumor-targeting-biodistribution-envisaged-in-a-surface-enhanced-raman-scattering-platform
#12
Manu M Joseph, Jyothi B Nair, Kaustabh Kumar Maiti, Sreelekha Therakathinal T
Biopolymer capped gold nanoparticles (AuNPs) were perceived for tracing biodistribution in a solid tumor mice through surface-enhanced Raman scattering (SERS) fingerprinting. In this strategy, a robust and ecofriendly green chemistry approach was adopted to construct galactoxyloglucan (PST001) endowed AuNPs (PST-GNPs) with cancer-cell-selective toxic nature and excellent biocompatibility. Plasmonically enhanced light scattering properties facilitated PST-GNPs to be a superior SERS substrate with high Raman signal enhancement...
November 15, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/29141136/systemic-mrna-delivery-to-the-lungs-by-functional-polyester-based-carriers
#13
Yunfeng Yan, Hu Xiong, Xinyi Zhang, Qiang Cheng, Daniel John Siegwart
Messenger RNA (mRNA) has recently come into focus as an emerging therapeutic class with great potential for protein replacement therapy, cancer immunotherapy, regenerative medicine, vaccines, and gene editing. However, the lack of effective and safe delivery methods impedes the broad application of mRNA-based therapeutics. Here, we report a robust approach to develop efficient polymeric delivery carriers for mRNA. Lead polyesters were identified by in vitro screening of a 480-member combinatorially modified poly(trimethylolpropane allyl ether-co-suberoyl chloride) library for the delivery of luciferase encoding mRNA (Luc mRNA) to IGROV1 cells...
November 15, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/29141114/ph-ultrasound-dual-responsive-gas-generator-for-ultrasound-imaging-guided-therapeutic-inertial-cavitation-and-sonodynamic-therapy
#14
Qianhua Feng, Wanxia Zhang, Xuemei Yang, Yuzhen Li, Yongwei Hao, Hongling Zhang, Lin Hou, Zhenzhong Zhang
Herein, a pH/ultrasound dual-responsive gas generator is reported, which is based on mesoporous calcium carbonate (MCC) nanoparticles by loading sonosensitizer (hematoporphyrin monomethyl ether (HMME)) and modifying surface hyaluronic acid (HA). After pinpointing tumor regions with prominent targeting efficiency, HMME/MCC-HA decomposes instantaneously under the cotriggering of tumoral inherent acidic condition and ultrasound (US) irradiation, concurrently accompanying with CO2 generation and HMME release with spatial/temporal resolution...
November 15, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/29141067/an-elusive-amelanotic-melanoma-and-review-of-dermoscopic-findings
#15
Anthony Chiaravalloti, Ali Banki
<p>Amelanotic melanoma (AM) is one of the great masqueraders in dermatology. It is a very difficult clinical diagnosis to make because these tumors are devoid of pigment and other clues of melanoma. They are commonly misdiagnosed clinically as other benign and malignant conditions. We present a new case of AM in an 84-year-old woman with a history of non-melanoma skin cancer. She had a thin pink plaque that was initially misdiagnosed as a basal cell carcinoma. We also discuss dermoscopy and its valuable role to improve diagnostic accuracy...
November 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/29141053/clinical-and-prognostic-value-of-htert-mrna-expression-in-patients-with-non-small-cell-lung-cancer
#16
Marzena Zalewska-Ziob, Katarzyna Dobija-Kubica, Krzysztof Biernacki, Brygida Adamek, Janusz Kasperczyk, Krzysztof Bruliński, Zofia Ostrowska
Telomerase, undetectable in normal somatic cells, plays a critical role in carcinogenesis of the majority of human tumors including lung carcinoma. The aim of our study was to determine human telomerase reverse transcriptase (hTERT) mRNA expression in patients with non-small cell lung cancer (NSCLC) in order to estimate its usefulness as diagnostic and/or prognostic factor. hTERT expression was analyzed in a group of 12 females and 28 males with NSCLC using Quantitative Real-Time Polymerase Chain Reaction (QRT-PCR method) in cancerous and non-cancerous lung tissues...
November 15, 2017: Acta Biochimica Polonica
https://www.readbyqxmd.com/read/29141026/in-depth-phenotypic-characterization-of-multicellular-tumor-spheroids-effects-of-5-fluorouracil
#17
Angélique Virgone-Carlotta, Manon Lemasson, Hichem C Mertani, Jean-Jacques Diaz, Sylvain Monnier, Thomas Dehoux, Hélène Delanoë-Ayari, Charlotte Rivière, Jean-Paul Rieu
MultiCellular Tumor Spheroids (MCTS), which mimic the 3-Dimensional (3D) organization of a tumor, are considered as better models than conventional cultures in 2-Dimensions (2D) to study cancer cell biology and to evaluate the response to chemotherapeutic drugs. A real time and quantitative follow-up of MCTS with simple and robust readouts to evaluate drug efficacy is still missing. Here, we evaluate the chemotherapeutic drug 5-Fluorouracil (5-FU) response on the growth and integrity of MCTS two days after treatment of MCTS and for three colorectal carcinoma cell lines with different cohesive properties (HT29, HCT116 and SW480)...
2017: PloS One
https://www.readbyqxmd.com/read/29141018/evaluation-of-the-proliferation-marker-ki-67-in-a-large-prostatectomy-cohort
#18
Elin Richardsen, Sigve Andersen, Samer Al-Saad, Mehrdad Rakaee, Yngve Nordby, Mona Irene Pedersen, Nora Ness, Thea Grindstad, Ingeborg Movik, Tom Dønnem, Roy Bremnes, Lill-Tove Busund
The tumor proliferation index marker Ki-67 is strongly associated with tumor cell proliferation, growth and progression, and is widely used in routine clinicopathological investigation. Prostate cancer is a complex multifaceted and biologically heterogeneous disease, and overtreatment of localized, low volume indolent tumors, is evident. Here, we aimed to assess Ki-67 expression and related outcomes of 535 patients treated with radical prostatectomy. The percentage of tumor epithelial cells expressing Ki-67 was determined by immunohistochemical assay, both digital image analysis and visual scoring by light microscope were used for quantification...
2017: PloS One
https://www.readbyqxmd.com/read/29140985/notch-signaling-and-progenitor-ductular-reaction-in-steatohepatitis
#19
Carola M Morell, Romina Fiorotto, Marica Meroni, Aileen Raizner, Barbara Torsello, Massimiliano Cadamuro, Gaia Spagnuolo, Eleanna Kaffe, Salvatore Sutti, Emanuele Albano, Mario Strazzabosco
BACKGROUND AND OBJECTIVE: Persistent hepatic progenitor cells (HPC) activation resulting in ductular reaction (DR) is responsible for pathologic liver repair in cholangiopathies. Also, HPC/DR expansion correlates with fibrosis in several chronic liver diseases, including steatohepatitis. Increasing evidence indicates Notch signaling as a key regulator of HPC/DR response in biliary and more in general liver injuries. Therefore, we aimed to investigate the role of Notch during HPC/DR activation in a mouse model of steatohepatitis...
2017: PloS One
https://www.readbyqxmd.com/read/29140883/mage-a4-and-mage-a1-immunohistochemical-expression-in-high-grade-endometrial-cancer
#20
Sanja Srdelić, Ivana Kuzmić-Prusac, Giulio C Spagnoli, Antonio Juretić, Vesna Čapkun
The aim was to investigate MAGE-A4 and MAGE-A1 protein expression in high-grade endometrial cancer and determine its correlation with histologic subtype, FIGO stage, presence of vascular invasion, disease free, and overall survival. Immunohistochemical staining was performed by using 77B (MAGE-A1) and 57B (MAGE-A4) monoclonal antibodies on paraffin-embedded sections from high-grade endometrial cancers diagnosed in University Hospital Split between 1998 and 2011 (n=77). Median follow-up time for survivors was 48 mo...
November 14, 2017: International Journal of Gynecological Pathology
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