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https://www.readbyqxmd.com/read/28099142/the-pentapeptide-gly-thr-gly-lys-thr-confers-sensitivity-to-anti-cancer-drugs-by-inhibition-of-cage-binding-to-gsk3%C3%AE-and-decreasing-the-expression-of-cyclind1
#1
Youngmi Kim, Hyuna Kim, Deokbum Park, Hansoo Lee, Yun Sil Lee, Jongseon Choe, Young Myeong Kim, Doyong Jeon, Dooil Jeoung
We previously reported the role of cancer/testis antigen CAGE in the response to anti-cancer drugs. CAGE increased the expression of cyclinD1, and pGSK3βSer9, an inactive GSK3β, while decreasing the expression of phospho-cyclinD1Thr286. CAGE showed binding to GSK3β and the domain of CAGE (amino acids 231-300) necessary for binding to GSK3β and for the expression regulation of cyclinD1 was determined. 269GTGKT273 peptide, corresponding to the DEAD box helicase domain of CAGE, decreased the expression of cyclinD1 and pGSK3βSer9 while increasing the expression of phospho-cyclinD1Thr286...
January 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/28070829/functional-analysis-of-kif20a-a-potential-immunotherapeutic-target-for-glioma
#2
Katsuya Saito, Shigeki Ohta, Yutaka Kawakami, Kazunari Yoshida, Masahiro Toda
Kinesin family member 20A (KIF20A), an ideal cancer-testis antigen, was reported to be a promising immunotherapeutic target for pancreatic cancers. Clinical trials of KIF20A peptide vaccine immunotherapy have been conducted against pancreatic cancers. To demonstrate the efficacy of KIF20A as a candidate molecular target for gliomas, we analyzed the expression and function of KIF20A in gliomas. Western blot and quantitative PCR analyses showed that KIF20A expression in glioma cell lines and glioma tissues was high compared with that found in a normal brain...
January 9, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28070774/restoring-fertility-with-cryopreserved-prepubertal-testicular-tissue-perspectives-with-hydrogel-encapsulation-nanotechnology-and-bioengineered-scaffolds
#3
Maxime Vermeulen, Jonathan Poels, Francesca de Michele, Anne des Rieux, Christine Wyns
New and improved oncological therapies are now able to cure more than 80% of cancer-affected children in Europe. However, such treatments are gonadotoxic and result in fertility issues, especially in boys who are not able to provide a sperm sample before starting chemo/radiotherapy because of their prepubertal state. For these boys, cryopreservation of immature testicular tissue (ITT) is the only available option, aiming to preserve spermatogonial stem cells (SSCs). Both slow-freezing and vitrification have been investigated to this end and are now applied in a clinical setting for SSC cryopreservation...
January 9, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28057305/stem-cell-based-tumorigenesis-in-adult-drosophila
#4
S X Hou, S R Singh
Recent studies suggest that a small subset of cells within a tumor, the so-called cancer stem cells (CSCs), are responsible for tumor propagation, relapse, and the eventual death of most cancer patients. CSCs may derive from a few tumor-initiating cells, which are either transformed normal stem cells or reprogrammed differentiated cells after acquiring initial cancer-causing mutations. CSCs and normal stem cells share some properties, but CSCs differ from normal stem cells in their tumorigenic ability. Notably, CSCs are usually resistant to chemo- and radiation therapies...
2017: Current Topics in Developmental Biology
https://www.readbyqxmd.com/read/28053928/synaptonemal-complex-protein-3-transcript-analysis-in-breast-cancer
#5
Maryam Beigom Mobasheri, Reza Shirkoohi, Mohammad Hossein Modarressi
BACKGROUND: Breast cancer is the most frequent cancer in women. Cancer/Testis antigens are immunogenic proteins ectopically expressed in human neoplasms. Synaptonemal complex protein 3 (SYCP3) belongs to cancer/testis genes family involved in meiotic events and spermatogenesis. The aim of this study was to express analysis of SYCP3 in breast cancer and validate it as a breast cancer biomarker. METHODS: Expression of SYCP3 transcripts in 47 breast tumors, 6 breast cancer cell lines (MCF7, SKBR3, T47D, BT474, MDA-MB-231 and MDA-MB 468), 5 normal breast and 2 testis tissues was studied by Real Time RT-PCR reaction...
December 2016: Iranian Journal of Public Health
https://www.readbyqxmd.com/read/28052023/spermatogonial-stem-cells-and-progenitors-are-refractory-to-reprogramming-to-pluripotency-by-the-transcription-factors-oct3-4-c-myc-sox2-and-klf4
#6
Sébastien Corbineau, Bruno Lassalle, Maelle Givelet, Inès Souissi-Sarahoui, Virginie Firlej, Paul Henri Romeo, Isabelle Allemand, Lydia Riou, Pierre Fouchet
The male germinal lineage, which is defined as unipotent, produces sperm through spermatogenesis. However, embryonic primordial germ cells and postnatal spermatogonial stem cells (SSCs) can change their fate and convert to pluripotency in culture when they are not controlled by the testicular microenvironment. The mechanisms underlying these reprogramming processes are poorly understood. Testicular germ cell tumors, including teratoma, share some molecular characteristics with pluripotent cells, suggesting that cancer could result from an abnormal differentiation of primordial germ cells or from an abnormal conversion of SCCs to pluripotency in the testis...
December 28, 2016: Oncotarget
https://www.readbyqxmd.com/read/28032932/androgen-induced-lncrna-potef-as1-regulates-apoptosis-related-pathway-to-facilitate-cell-survival-in-prostate-cancer-cells
#7
Aya Misawa, Ken-Ichi Takayama, Tetsuya Fujimura, Yukio Homma, Yutaka Suzuki, Satoshi Inoue
Although long noncoding RNAs (lncRNA) have been associated with a variety of cancers, the interplay between lncRNAs and androgen receptor (AR) signaling in prostate cancer is still unclear. Here, we identified an androgen-dependent lncRNA, prostate, ovary, testis expressed protein family member-F antisense transcript-1 (POTEF-AS1), whose expression was regulated by AR in two androgen-dependent cells by using directional RNA-seq analysis. POTEF-AS1 promoted cell growth, repressed genes related to the toll-like receptor (TLR) signaling and apoptosis pathways and inhibited apoptosis in docetaxel-treated LNCaP cells...
December 29, 2016: Cancer Science
https://www.readbyqxmd.com/read/28028759/the-expression-of-damp-proteins-hsp70-and-cancer-testis-antigen-spag9-in-peripheral-blood-of-patients-with-hcc-and-lung-cancer
#8
Biqiong Ren, Shudi Luo, Fei Xu, Guoying Zou, Guofeng Xu, Junyu He, Yiran Huang, Haowen Zhu, Yong Li
There are different views of how the immune system participates in the reaction to cancer. Here, we evaluated expression of DAMP proteins HSP70 and cancer-testis antigen SPAG9 in patients with hepatocellular carcinoma (HCC) and lung cancer to explore tumor immunity. Our analysis showed that levels of HSP70 and SPAG9 antibody were significantly higher in the serum of lung cancer and HCC patients than in the serum of healthy subjects (P < 0.001), but there were no differences in levels of HSP70 antibody in patients and controls...
December 27, 2016: Cell Stress & Chaperones
https://www.readbyqxmd.com/read/28017655/cd59-regulation-by-sox2-is-required-for-epithelial-cancer-stem-cells-to-evade-complement-surveillance
#9
Jianfeng Chen, Peipei Ding, Ling Li, Hongyu Gu, Xin Zhang, Long Zhang, Na Wang, Lu Gan, Qi Wang, Wei Zhang, Weiguo Hu
Cancer stem cells (CSCs) are highly associated with therapy resistance and metastasis. Interplay between CSCs and various immune components is required for tumor survival. However, the response of CSCs to complement surveillance remains unknown. Herein, using stem-like sphere-forming cells prepared from a mammary tumor and a lung adenocarcinoma cell line, we found that CD59 was upregulated to protect CSCs from complement-dependent cytotoxicity. CD59 silencing significantly enhanced complement destruction and completely suppressed tumorigenesis in CSC-xenografted nude mice...
January 10, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/28003740/dose-dependent-effects-of-cisplatin-on-the-severity-of-testicular-injury-in-sprague-dawley-rats-reactive-oxygen-species-and-endoplasmic-reticulum-stress
#10
Kiran Kumar Soni, Hye Kyung Kim, Bo Ram Choi, Keshab Kumar Karna, Jae Hyung You, Jai Seong Cha, Yu Seob Shin, Sung Won Lee, Chul Young Kim, Jong Kwan Park
Cisplatin (CIS) is used in the treatment of cancer, but its nonspecific systemic actions lead to toxic effects on other parts of the body. This study investigated the severity of CIS toxicity by increasing its dose over a constant time period. Sprague Dawley rats were divided into five treatment groups and control group with CIS (2, 4, 6, 8, and 10 mg/kg) administered intraperitoneally for 5 days. The body and organs were weighed, epididymal sperm was counted, and sperm motility and sperm apoptosis were evaluated...
2016: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/27993817/use-of-chemotherapy-near-the-end-of-life-what-factors-matter
#11
P Rochigneux, J L Raoul, Y Beaussant, R Aubry, F Goldwasser, C Tournigand, L Morin
BACKGROUND: Use of chemotherapy near the end of life in patients with metastatic cancer is often ineffective and toxic. Data about the factors associated with its use remain scarce, especially in Europe. METHODS: nationwide, register-based study including all hospitalized patients aged ≥20 years who died from metastatic solid tumors in France between 2010 and 2013. RESULTS: a total of 279,846 hospitalized patients who died from metastatic cancer were included...
December 19, 2016: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/27993576/cancer-testis-antigen-expression-in-synovial-sarcoma-ny-eso-1-prame-magea4-and-magea1
#12
Kunio Iura, Akira Maekawa, Kenichi Kohashi, Takeaki Ishii, Hirofumi Bekki, Hiroshi Otsuka, Yuichi Yamada, Hidetaka Yamamoto, Katsumi Harimaya, Yukihide Iwamoto, Yoshinao Oda
Synovial sarcoma (SS) is regarded as a relatively chemosensitive sarcoma, but the prognosis of advanced SSs remains poor. Here we identified highly expressed cancer-testis antigens that could be promising immunotherapy targets for SS, using a previously conducted cDNA microarray, and we assessed the clinicopathological or prognostic relationships of these antigens in SS. We compared the gene expression profiles of 11 synovial sarcomas with those of three normal adipose tissues. Among the up-regulated cancer-testis antigens, we analyzed PRAME, MAGEA1 and MAGEA4 and another cancer-testis antigen (NY-ESO-1) together, by immunohistochemistry and real-time polymerase chain reaction (PCR) in 108 synovial sarcomas...
December 16, 2016: Human Pathology
https://www.readbyqxmd.com/read/27992447/heat-sensing-receptor-trpv1-is-a-mediator-of-thermotaxis-in-human-spermatozoa
#13
Luca De Toni, Andrea Garolla, Massimo Menegazzo, Sabina Magagna, Andrea Di Nisio, Iva Šabović, Maria Santa Rocca, Valentina Scattolini, Andrea Filippi, Carlo Foresta
The molecular bases of sperm thermotaxis, the temperature-oriented cell motility, are currently under investigation. Thermal perception relies on a subclass of the transient receptor potential [TRP] channels, whose member TRPV1 is acknowledged as the heat sensing receptor. Here we investigated the involvement of TRPV1 in human sperm thermotaxis. We obtained semen samples from 16 normozoospermic subjects attending an infertility survey programme, testis biopsies from 6 patients with testicular germ cell cancer and testis fine needle aspirates from 6 patients with obstructive azoospermia undergoing assisted reproductive technologies...
2016: PloS One
https://www.readbyqxmd.com/read/27992363/germ-cell-specific-sustained-activation-of-wnt-signalling-perturbs-spermatogenesis-in-aged-mice-possibly-through-non-coding-rnas
#14
Manish Kumar, Joshua Atkins, Murray Cairns, Ayesha Ali, Pradeep S Tanwar
Dysregulated Wnt signalling is associated with human infertility and testicular cancer. However, the role of Wnt signalling in male germ cells remains poorly understood. In this study, we first confirmed the activity of Wnt signalling in mouse, dog and human testes. To determine the physiological importance of the Wnt pathway, we developed a mouse model with germ cell-specific constitutive activation of βcatenin. In young mutants, similar to controls, germ cell development was normal. However, with age, mutant testes showed defective spermatogenesis, progressive germ cell loss, and flawed meiotic entry of spermatogonial cells...
December 15, 2016: Oncotarget
https://www.readbyqxmd.com/read/27965401/bovine-pirna-like-rnas-are-associated-with-both-mobile-elements-and-mrnas
#15
Stewart J Russell, Mehool Patel, Graham Gilchrist, Leanne Stalker, Daniel Gillis, David Rosenkranz, Jonathan LaMarre
PIWI proteins and their associated piRNAs have been the focus of intensive research for the past decade, and their participation in the maintenance of genomic integrity during spermatogenesis has been well established. Recent studies have suggested important roles for the PIWI/piRNA system outside of gametogenesis, based on the presence of piRNAs and PIWI proteins in several somatic tissues, cancers, and the early embryo. Here we investigated the small-RNA complement present in bovine gonads, gametes, and embryos through next generation sequencing...
December 13, 2016: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/27956115/future-perspectives-in-adult-stem-cell-turnover-implications-for-endocrine-physiology-and-disease
#16
Clara V Alvarez, Fernando Oroz-Gonjar, Montserrat Garcia-Lavandeira
No abstract text is available yet for this article.
December 9, 2016: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/27941046/topical-1-5-fluoruracil-as-a-sole-treatment-of-corneoconjunctival-ocular-surface-squamous-neoplasia-long-term-study
#17
Raffaele Parrozzani, Luisa Frizziero, Sara Trainiti, Ilaria Testi, Giacomo Miglionico, Elisabetta Pilotto, Stella Blandamura, Ambrogio Fassina, Edoardo Midena
AIMS: To report long-term clinical outcome of topical 1% 5-fluoruracil (5-FU) as a sole treatment of ocular surface squamous neoplasia (OSSN). METHODS: 41 patients affected by OSSN were included. Each patient underwent full ophthalmological examination at baseline, with cytological or histological confirmation. Patients were treated by topical chemotherapy with 1% 5-FU four times a day for 4 weeks. One course was defined as 4 weeks of topical chemotherapy. Adjunctive courses were administered after 1 month of chemotherapy-free interval...
December 9, 2016: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/27920558/monitoring-the-effects-of-doxorubicin-on-3d-spheroid-tumor-cells-in-real-time
#18
NamHuk Baek, Ok Won Seo, MinSung Kim, John Hulme, Seong Soo A An
Recently, increasing numbers of cell culture experiments with 3D spheroids presented better correlating results in vivo than traditional 2D cell culture systems. 3D spheroids could offer a simple and highly reproducible model that would exhibit many characteristics of natural tissue, such as the production of extracellular matrix. In this paper numerous cell lines were screened and selected depending on their ability to form and maintain a spherical shape. The effects of increasing concentrations of doxorubicin (DXR) on the integrity and viability of the selected spheroids were then measured at regular intervals and in real-time...
2016: OncoTargets and Therapy
https://www.readbyqxmd.com/read/27919963/expression-levels-of-piwi-interacting-rna-pir-823-are-deregulated-in-tumor-tissue-blood-serum-and-urine-of-patients-with-renal-cell-carcinoma
#19
Robert Iliev, Michal Fedorko, Tana Machackova, Hana Mlcochova, Marek Svoboda, Dalibor Pacik, Jan Dolezel, Michal Stanik, Ondrej Slaby
BACKGROUND: Renal cell carcinoma (RCC) is the most common neoplasm of adult kidney accounting for about 3% of adult malignancies. P-Element induced wimpy testis (PIWI)-interacting RNAs (piRNAs) are a new class of naturally occurring, short non-coding RNAs involved in silencing of transposable elements and in sequence-specific chromatin modifications. There were preliminary data published indicating that piR-823 expression is deregulated in circulating tumor cells and tumor tissue in gastric and kidney cancer, respectively...
2016: Anticancer Research
https://www.readbyqxmd.com/read/27898411/radioprotective-effects-of-heat-killed-mycobacterium-tuberculosis-in-cultured-cells-and-radiosensitive-tissues
#20
Yuanyuan Chen, Yang Xu, Jicong Du, Jiaming Guo, Xiao Lei, Jianguo Cui, Cong Liu, Ying Cheng, Bailong Li, Fu Gao, Jintao Ju, Jianming Cai, Yanyong Yang
BACKGROUND: Exposure to ionizing radiation (IR) often causes severe damage to radiosensitive tissues, which limits the use of radiotherapy in cancer patients. Novel safe and effective radioprotectant is urgently required. It has been reported toll like receptor 2 (TLR2) plays a critical role in radioresistance. In this study, we demonstrated the protective effects of Heat-Killed Mycobacterium tuberculosis (HKMT), a potent TLR2 agonist, against IR. METHODS: Cell survival and apoptosis were determined by CCK-8 assay and Annexin V assay, respectively...
2016: Cellular Physiology and Biochemistry
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