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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/29141353/-progress-in-research-of-thyroid-carcinoma-related-gene-mutation-and-epigenetics
#2
W H Zheng, W W Gong, F Lu, M Yu
Thyroid cancer is one of the most common endocrine malignant tumors, and its molecular pathogenesis is also a process of multiple genes involved in many steps of carcinogenesis. With the development of molecular biology technology, a variety of related gene mutations and epigenetic phenomena have been found in thyroid cancer tissues. It is helpful to understand the latest progress in the research of the gene mutation and epigenetics of thyroid cancer for its early diagnosis, prevention and the development of targeted drugs...
November 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
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/29141226/a-pan-cancer-analysis-of-the-expression-and-clinical-relevance-of-small-nucleolar-rnas-in-human-cancer
#4
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/29141219/preventive-inhibition-of-liver-tumorigenesis-by-systemic-activation-of-innate-immune-functions
#5
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/29141136/systemic-mrna-delivery-to-the-lungs-by-functional-polyester-based-carriers
#6
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/29141020/genomic-analysis-of-atypical-fibroxanthoma
#7
Kevin Lai, Catherine A Harwood, Karin J Purdie, Charlotte M Proby, Irene M Leigh, Namita Ravi, Thaddeus W Mully, Lionel Brooks, Priscilla M Sandoval, Michael D Rosenblum, Sarah T Arron
Atypical fibroxanthoma (AFX), is a rare type of skin cancer affecting older individuals with sun damaged skin. Since there is limited genomic information about AFX, our study seeks to improve the understanding of AFX through whole-exome and RNA sequencing of 8 matched tumor-normal samples. AFX is a highly mutated malignancy with recurrent mutations in a number of genes, including COL11A1, ERBB4, CSMD3, and FAT1. The majority of mutations identified were UV signature (C>T in dipyrimidines). We observed deletion of chromosomal segments on chr9p and chr13q, including tumor suppressor genes such as KANK1 and CDKN2A, but no gene fusions were found...
2017: PloS One
https://www.readbyqxmd.com/read/29140994/copy-number-gains-at-chr3p25-and-chr11p11-are-associated-with-lymph-node-involvement-and-survival-in-muscle-invasive-bladder-tumors
#8
Karla J Lindquist, Thomas Sanford, Terence W Friedlander, Pamela L Paris, Sima P Porten
Patients with muscle-invasive bladder cancer (MIBC) have poorer prognoses if cancer has metastasized to the lymph nodes. Genomic markers of lymph node involvement (LNI) would be useful for treatment planning, especially if measured at the biopsy stage, but large-scale studies of tumor tissue at any stage are needed to discover robust markers of LNI. We performed a genome-wide query of copy number alterations (CNA) in 237 MIBC surgical tumor specimens from patients in The Cancer Genome Atlas who had radical cystectomy and lymphadenectomy without neoadjuvant treatment...
2017: PloS One
https://www.readbyqxmd.com/read/29140993/prognostic-significance-of-cyclin-d1-protein-expression-and-gene-amplification-in-invasive-breast-carcinoma
#9
Angela B Ortiz, Diego Garcia, Yolanda Vicente, Magda Palka, Carmen Bellas, Paloma Martin
The oncogenic capacity of cyclin D1 has long been established in breast cancer. CCND1 amplification has been identified in a subset of patients with poor prognosis, but there are conflicting data regarding the predictive value of cyclin D1 protein overexpression. This study was designed to analyze the expression of cyclin D1 and its correlation with CCND1 amplification and their prognostic implications in invasive breast cancer. By using the tissue microarray technique, we performed an immunohistochemical study of ER, PR, HER2, p53, cyclin D1, Ki67 and p16 in 179 invasive breast carcinoma cases...
2017: PloS One
https://www.readbyqxmd.com/read/29140788/impact-of-protamine-i-on-colon-cancer-proliferation-invasion-migration-diagnosis-and-prognosis
#10
Zhi Chen, Chunyu Shi, Shuohui Gao, Ye Feng
The paper investigated the Protamine I (PRM1) expression and its effects on proliferation, invasion and migration of colon cancer cells as well as its function in clinical diagnosis and prognosis. Gene chips were used to screen differentially expressed genes. PRM1 expression was detected by Western blotting and qRT-PCR. HE staining and immunohistochemistry were utilized to compare the expression of PRM1 from multiple differentiation levels of colon cancer tissues. Cell viability, cell apoptosis and cell cycle were tested by MTT assay and flow cytometry...
August 28, 2017: Biological Chemistry
https://www.readbyqxmd.com/read/29140740/upregulation-of-tyrosine-kinase-fyn-in-human-thyroid-carcinoma-role-in-modulating-tumor-cell-proliferation-invasion-and-migration
#11
Jing Zheng, Huiling Li, Dongting Xu, Huijuan Zhu
Tyrosine kinase FYN-a member of the SRC family of kinases-is associated with mediating mitogenic signals and regulating cell cycle entry, growth, and proliferation. It was hypothesized that FYN is upregulated in thyroid carcinoma, which plays a critical role in tumorigenesis. FYN expression level in thyroid carcinoma tissue and tumor cell lines was determined. Also, the effects of FYN on thyroid cancer (TC) growth, signaling, cell cycle, and apoptosis were evaluated in vitro. FYN was knocked down in thyroid cancer cells (TPC-1) by siRNA to investigate the effects on cell proliferation, invasion, and migration...
November 2017: Cancer Biotherapy & Radiopharmaceuticals
https://www.readbyqxmd.com/read/29140561/interaction-among-smoking-status-single-nucleotide-polymorphisms-and-markers-of-systemic-inflammation-in-healthy-individuals
#12
Thitiya Luetragoon, Lars Erik Rutqvist, Orathai Tangvarasittichai, Bengt-Åke Andersson, Sture Löfgren, Kanchana Usuwanthim, Nongnit Laytragoon Lewin
Cigarette smoke contains toxic and carcinogenic substances that contribute to the development of cancer and various diseases. Genetic variation might be important because not all smokers develop smoking-related disease. The current study addressed the possible interactions among selected single nucleotide polymorphisms (SNPs) in genes related to systemic inflammation, smoking status, the levels of circulating immune response cells and plasma biomarkers of systemic inflammation. Sixty-four healthy blood donors were recruited, of whom 31 were current smokers and 33 were never-users of tobacco products, references...
November 15, 2017: Immunology
https://www.readbyqxmd.com/read/29140456/minimotif-miner-4-a-million-peptide-minimotifs-and-counting
#13
Kenneth F Lyon, Xingyu Cai, Richard J Young, Abdullah-Al Mamun, Sanguthevar Rajasekaran, Martin R Schiller
Minimotif Miner (MnM) is a database and web system for analyzing short functional peptide motifs, termed minimotifs. We present an update to MnM growing the database from ∼300 000 to >1 000 000 minimotif consensus sequences and instances. This growth comes largely from updating data from existing databases and annotation of articles with high-throughput approaches analyzing different types of post-translational modifications. Another update is mapping human proteins and their minimotifs to know human variants from the dbSNP, build 150...
November 11, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29140419/dietary-glutamine-glutamate-and-mortality-two-large-prospective-studies-in-us-men-and-women
#14
Wenjie Ma, Yoriko Heianza, Tao Huang, Tiange Wang, Dianjianyi Sun, Yan Zheng, Frank B Hu, Kathryn M Rexrode, JoAnn E Manson, Lu Qi
Background: Emerging studies have related circulating glutamine metabolites to various chronic diseases such as cardiovascular disease and cancer; diet is the major source of nutrients involved in glutamine metabolism. However, it remains unknown whether dietary intakes of glutamine, glutamate,and their ratio are related to total and cause-specific mortality. Methods: We followed 74 082 women from the Nurses' Health Study (1984-2012) and 42 303 men from the Health Professionals Follow-up Study (1986-2012), who were free of cardiovascular disease and cancer at baseline...
November 13, 2017: International Journal of Epidemiology
https://www.readbyqxmd.com/read/29140300/novel-strategies-on-personalized-medicine-for-breast-cancer-treatment-an-update
#15
REVIEW
Carmen W H Chan, Bernard M H Law, Winnie K W So, Ka Ming Chow, Mary M Y Waye
Breast cancer is the most common cancer type among women worldwide. With breast cancer patients and survivors being reported to experience a repertoire of symptoms that are detrimental to their quality of life, the development of breast cancer treatment strategies that are effective with minimal side effects is therefore required. Personalized medicine, the treatment process that is tailored to the individual needs of each patient, is recently gaining increasing attention for its prospect in the development of effective cancer treatment regimens...
November 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29140298/enhancement-of-bone-marrow-derived-mesenchymal-stem-cell-osteogenesis-and-new-bone-formation-in-rats-by-obtusilactone-a
#16
Yi-Hsiung Lin, Chung-Yi Chen, Liang-Yin Chou, Chung-Hwan Chen, Lin Kang, Chau-Zen Wang
The natural pure compound obtusilactone A (OA) was identified in Cinnamomum kotoense Kanehira & Sasaki, and shows effective anti-cancer activity. We studied the effect of OA on osteogenesis of bone marrow-derived mesenchymal stem cells (BMSCs). OA possesses biocompatibility, stimulates Alkaline Phosphatase (ALP) activity and facilitates mineralization of BMSCs. Expression of osteogenesis markers BMP2, Runx2, Collagen I, and Osteocalcin was enhanced in OA-treated BMSCs. An in vivo rat model with local administration of OA via needle implantation to bone marrow-residing BMSCs revealed that OA increased the new bone formation and trabecular bone volume in tibias...
November 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29140271/molecular-targeted-therapies-for-epidermal-growth-factor-receptor-and-its-resistance-mechanisms
#17
REVIEW
Toshimitsu Yamaoka, Motoi Ohba, Tohru Ohmori
Cancer therapies targeting epidermal growth factor receptor (EGFR), such as small-molecule kinase inhibitors and monoclonal antibodies, have been developed as standard therapies for several cancers, such as non-small cell lung cancer, colorectal cancer, pancreatic cancer, breast cancer, and squamous cell carcinoma of the head and neck. Although these therapies can significantly prolong progression-free survival, curative effects are not often achieved because of intrinsic and/or acquired resistance. The resistance mechanisms to EGFR-targeted therapies can be categorized as resistant gene mutations, activation of alternative pathways, phenotypic transformation, and resistance to apoptotic cell death...
November 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29139616/raft-polymerization-for-the-synthesis-of-tertiary-amine-based-diblock-copolymer-nucleic-acid-delivery-vehicles
#18
Annie K McClellan, Taisen Hao, Tracy A Brooks, Adam E Smith
The synthesis and characterization of a family of nine pH-responsive, diblock copolymers designed to effectively deliver nucleic acids are reported. The stabilizing A block is comprised of an oligo(ethylene glycol) methyl ether methacrylate to impart water solubility. The cationic blocks of varying degrees of polymerization (DPs) are derived from three pH responsive, tertiary amine-containing methacrylates capable of complexing negatively charged nucleic acids. The cytotoxicity studies utilizing human embryonic kidney cells (HEK-293) and Michigan Cancer Foundation-7 (MCF-7) breast cancer cells indicate no decrease of cell viability with the diblock copolymers, with the exception of the two highest DPs of the cationic blocks with ethyl-substitutes tertiary amine...
November 15, 2017: Macromolecular Bioscience
https://www.readbyqxmd.com/read/29139328/repression-of-oxidative-phosphorylation-sensitizes-leukemia-cell-lines-to-cytarabine
#19
Burcu Yucel, Mehmet Sonmez
OBJECTIVES: Leukemia is a group of bone marrow cancers and drug resistance is one of the challenges in treatment. Caffeic acid phenethyl ester's (CAPE's) anti-proliferative and apoptotic properties have been reported in leukemia cell lines. However, CAPE's effect on drug resistance and cellular metabolism is still unknown. Thus, in this study, we aimed to explore CAPE's effect on drug resistance and oxidative phosphorylation (oxphos). METHODS: Leukemia cell lines NB-4, HL-60, and K562 were treated with CAPE...
November 15, 2017: Hematology (Amsterdam, Netherlands)
https://www.readbyqxmd.com/read/29139326/dna-polymerase-%C3%AE-mutational-signatures-are-found-in-a-variety-of-different-types-of-cancer
#20
Igor B Rogozin, Alexander Goncearenco, Artem G Lada, Subhajyoti De, German Nudelman, Anna R Panchenko, David N Cooper, Youri I Pavlov
DNA polymerase (pol) η is a specialized error-prone polymerase with at least two quite different and contrasting cellular roles: to mitigate the genetic consequences of solar UV irradiation, and promote somatic hypermutation in the variable regions of immunoglobulin genes. Misregulation and mistargeting of pol η can compromise genome integrity. We explored whether the mutational signature of pol η could be found in datasets of human somatic mutations derived from normal and cancer cells. A substantial excess of single and tandem somatic mutations within known pol η mutable motifs was noted in skin cancer as well as in many other types of human cancer, suggesting that somatic mutations in A:T bases generated by DNA polymerase η are a common feature of tumorigenesis...
November 15, 2017: Cell Cycle
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