keyword
MENU ▼
Read by QxMD icon Read
search

Pten and prostate

keyword
https://www.readbyqxmd.com/read/28535647/-effects-of-overexpression-of-mir-17-92-gene-cluster-on-the-biological-characteristics-of-prostate-cancer-cells-and-its-mechanism
#1
P Zhou, L Ma, J Zhou, J J Xu, F Liu, F Guo
Objective: To explore the effect and mechanism of over-expression of miR-17-92 gene cluster on the biological characteristics of prostate cancer cells. Methods: DU145 cells were transfected with miR-17-92 gene expression plasmid and clones with stable ectopic miR-17-92 overexpression were established. The cell viabilities of DU145-17-92 and DU145-control cells were monitored by xCELLigence system. Cell proliferation and apoptosis were analyzed by Ki-67 and terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay...
May 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28525906/copy-number-variations-of-circulating-cell-free-dna-in-urothelial-carcinoma-of-the-bladder-patients-treated-with-radical-cystectomy-a-prospective-study
#2
Armin Soave, Felix K-H Chun, Timo Hillebrand, Michael Rink, Lars Weisbach, Bettina Steinbach, Margit Fisch, Klaus Pantel, Heidi Schwarzenbach
The aim of the present study was to establish a rapid profiling method using multiplex ligation-dependent probe amplification (MLPA) and characterize copy number variations (CNV) in circulating, cell-free DNA (cfDNA) in 85 urothelial carcinoma of the bladder (UCB) patients treated with radical cystectomy (RC). MLPA was tested for the use of cfDNA extracted from serum and plasma by various commercial extraction kits. Eighteen probes served as reference to control denaturation, ligation and amplification efficiency...
May 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28515422/up-regulation-and-nuclear-translocation-of-y-box-binding-protein-1-yb-1-is-linked-to-poor-prognosis-in-erg-negative-prostate-cancer
#3
Asmus Heumann, Özge Kaya, Christoph Burdelski, Claudia Hube-Magg, Martina Kluth, Dagmar S Lang, Ronald Simon, Burkhard Beyer, Imke Thederan, Guido Sauter, Jakob R Izbicki, Andreas M Luebke, Andrea Hinsch, Frank Jacobsen, Corinna Wittmer, Franziska Büscheck, Doris Höflmayer, Sarah Minner, Maria Christina Tsourlakis, Thorsten Schlomm, Waldemar Wilczak
Y-box binding protein 1 (YB-1) is an RNA and DNA binding factor with potential prognostic cancer. To evaluate the clinical impact of YB-1, a tissue microarray with 11,152 prostate cancers was analysed by immunohistochemistry. Cytoplasmic and nuclear staining was separately analysed. Cytoplasmic YB-1 was absent or weak in normal epithelium but seen in 86,3% of carcinomas. Cytoplasmic staining was weak, moderate, and strong in 29.6%, 43.7% and 13.0% of tumours and was accompanied by nuclear YB-1 staining in 32...
May 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28515147/increased-t-cell-infiltration-elicited-by-erk5-deletion-in-a-pten-deficient-mouse-model-of-prostate-carcinogenesis
#4
Carolyn Loveridge, Ernest Mui, Rachana Patel, Ee Hong Tan, Imran Ahmad, Michelle Welsh, Julie Galbraith, Ann Hedley, Colin Nixon, Karen Blyth, Owen J Sansom, Hing Y Leung
Prostate cancer (PCa) does not appear to respond to immune checkpoint therapies where T cell infiltration may be a key limiting factor. Here we report evidence that ablating the growth regulatory kinase Erk5 can increase T cell infiltration in an established Pten-deficient mouse model of human PCa. Mice that were doubly mutant in prostate tissue for Pten and Erk5 (prostate DKO) exhibited a markedly increased median survival with reduced tumor size and proliferation compared to control Pten-mutant mice, the latter of which exhibited increased Erk5 mRNA expression...
May 17, 2017: Cancer Research
https://www.readbyqxmd.com/read/28514735/kif7-attenuates-prostate-tumor-growth-through-lkb1-mediated-akt-inhibition
#5
Kai Yau Wong, Jing Liu, Kwok Wah Chan
This study investigated kinesin family member 7 (KIF7) expression and function in prostate cancer (PCa). Our results showed that KIF7 was significantly downregulated in PCa, compared with normal, benign prostatic hyperplasia and prostate intraepithelial neoplasia tissues, partially through promoter hypermethylation. We further investigated the effects of KIF7 coiled coil (CC) domain and motor domain (MD) on PCa development in vitro and in vivo. Our results showed that KIF7-CC but not KIF7-MD significantly attenuated proliferation and colony formation, impeded migration and invasion, induced apoptosis and sensitized PCa cells to paclitaxel...
April 26, 2017: Oncotarget
https://www.readbyqxmd.com/read/28512253/infiltrating-myeloid-cells-exert-pro-tumorigenic-actions-via-neutrophil-elastase
#6
Irina Lerman, Maria de la Luz Garcia-Hernandez, Javier Rangel-Moreno, Luis Chiriboga, Chunliu Pan, Kent L Nastiuk, John J Krolewski, Aritro Sen, Stephen R Hammes
Tissue infiltration and elevated peripheral circulation of granulocytic myeloid-derived cells is associated with poor outcomes in prostate cancer (PCa) and other malignancies. Although myeloid-derived cells have the ability to suppress T-cell function, little is known about the direct impact of these innate cells on prostate tumor growth. Here it is reported that granulocytic myeloid-derived suppressor cells (MDSCs) are the predominant tumor infiltrating cells in PCa xenografts established in athymic nude mice...
May 16, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28507054/glutamine-transporters-are-targets-of-multiple-oncogenic-signaling-pathways-in-prostate-cancer
#7
Mark A White, Chenchu Lin, Kimal Rajapakshe, Jianrong Dong, Yan Shi, Efrosini Tsouko, Ratna Mukhopadhyay, Diana Jasso, Wajahat Dawood, Cristian Coarfa, Daniel E Frigo
Despite the known importance of androgen receptor (AR) signaling in prostate cancer (PCa), the processes downstream of AR that drive disease development and progression remain poorly understood. This knowledge gap has thus limited the ability to treat cancer. Here, it is demonstrated that androgens increase the metabolism of glutamine in PCa cells. This metabolism was required for maximal cell growth under conditions of serum starvation. Mechanistically, AR signaling promoted glutamine metabolism by increasing the expression of the glutamine transporters SLC1A4 and SLC1A5, genes commonly overexpressed in PCa...
May 15, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28504208/pten-loss-and-p27-loss-differ-among-morphologic-patterns-of-prostate-cancer-including-cribriform
#8
Shira Ronen, Daniel W Abbott, Oleksandr Kravtsov, Amrou Abdelkader, Yayun Xu, Anjishnu Banerjee, Kenneth A Iczkowski
The presence and extent of cribriform pattern of prostate cancer portend recurrence and cancer death. Therelative expressions within this morphology of the prognostically adverse loss of PTEN, and the downstream inactivation of cell cycle inhibitor p27/Kip1 had been uncertain. In this study, we examined 52 cases of cribriform cancer by immunohistochemistry (IHC) for PTEN, p27, and CD44 variant (v)7/8, and a subset of 17 casesby chromogenic in situ hybridization (ISH) using probe for PTEN or CDKN1B (gene for p27)...
May 10, 2017: Human Pathology
https://www.readbyqxmd.com/read/28500233/nanoformulation-of-olaparib-amplifies-parp-inhibition-and-sensitizes-pten-tp53-deficient-prostate-cancer-to-radiation
#9
Anne L van de Ven, Shifalika Tangutoori, Paige Baldwin, Ju Qiao, Codi Gharagouzloo, Nina Seitzer, John G Clohessy, G Mike Makrigiorgos, Robert Cormack, Pier Paolo Pandolfi, Srinivas Sridhar
The use of PARP inhibitors in combination with radiation therapy is a promising strategy to locally enhance DNA-damage in tumors. Here we show that radiation-resistant cells and tumors derived from a Pten/Trp53-deficient mouse model of advanced prostate cancer are rendered radiation-sensitive following treatment with NanoOlaparib, a lipid-based injectable nanoformulation of Olaparib. This enhancement in radiosensitivity is accompanied by radiation dose-dependent changes in γ-H2AX expression and is specific to NanoOlaparib alone...
May 12, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28494348/withaferin-a-inhibits-prostate-carcinogenesis-in-a-pten-deficient-mouse-model-of-prostate-cancer
#10
Jim Moselhy, Suman Suman, Mohammed Alghamdi, Balaji Chandarasekharan, Trinath P Das, Alatassi Houda, Murali Ankem, Chendil Damodaran
We recently demonstrated that AKT activation plays a role in prostate cancer progression and inhibits the pro-apoptotic function of FOXO3a and Par-4. AKT inhibition and Par-4 induction suppressed prostate cancer progression in preclinical models. Here, we investigate the chemopreventive effect of the phytonutrient Withaferin A (WA) on AKT-driven prostate tumorigenesis in a Pten conditional knockout (Pten-KO) mouse model of prostate cancer. Oral WA treatment was carried out at two different doses (3 and 5 mg/kg) and compared to vehicle over 45 weeks...
May 7, 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/28489892/exposure-to-maternal-obesogenic-diet-worsens-some-but-not-all-pre-cancer-phenotypes-in-a-murine-genetic-model-of-prostate-cancer
#11
Theresa Okeyo-Owuor, Emily Benesh, Scott Bibbey, Michaela Reid, Jacques Halabi, Siobhan Sutcliffe, Kelle Moley
Prostate cancer research has been predominantly focused on adult exposures and risk factors. However, because the prostate develops during gestation and early life, exposure to external factors, such as obesity, during development could affect the prostate cancer progression in adults. Our previous work demonstrated that exposure to a high fat/high sugar (HF/HS) diet during gestation and until weaning stimulated prostate hyperplasia and altered the Pten/Akt pathway in adult mice fed a normal diet after weaning...
2017: PloS One
https://www.readbyqxmd.com/read/28477068/the-role-of-mir-130a-in-cancer
#12
REVIEW
He-da Zhang, Lin-Hong Jiang, Da-Wei Sun, Jian Li, Zhen-Ling Ji
MicroRNAs (miRs) are short and highly conserved non-coding RNAs molecules consisting of 18-25 nucleotides that regulate gene expression at post-transcriptional level by direct binding to complementary binding sites within the 3'untranslated region (3'UTR) of target mRNAs. New evidences have demonstrated that miRNAs play an important role in diverse physiological processes, including regulating cell growth, apoptosis, metastasis, drug resistance, and invasion. In chromosomes 11 and 22 of the miR-130 family, paralogous miRNA sequences, miR-130a and miR-130b are situated, respectively...
May 5, 2017: Breast Cancer: the Journal of the Japanese Breast Cancer Society
https://www.readbyqxmd.com/read/28472770/modeling-african-american-prostate-adenocarcinoma-by-inducing-defined-genetic-alterations-in-organoids
#13
Kenji Unno, Meejeon Roh, Young A Yoo, Yousef Al-Shraideh, Lu Wang, Larisa Nonn, Sarki A Abdulkadir
Genomic studies are rapidly identifying genetic alterations in human cancer, but functional validation of such alterations has been slow. Here, using human prostate cancer as a model, we have assessed the feasibility of engineering defined genetic alterations in well-known cancer driver genes to transform benign prostate epithelial organoids derived from African American men. Benign human prostate organoids were transduced with lentiviruses expressing MYC, shPTEN, shTP53 and AR, alone and in various combinations, to recapitulate prostate cancer development...
April 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/28439009/estrogen-receptor-%C3%AE-a-regulator-of-androgen-receptor-signaling-in-the-mouse-ventral-prostate
#14
Wan-Fu Wu, Laure Maneix, Jose Insunza, Ivan Nalvarte, Per Antonson, Juha Kere, Nancy Yiu-Lin Yu, Virpi Tohonen, Shintaro Katayama, Elisabet Einarsdottir, Kaarel Krjutskov, Yu-Bing Dai, Bo Huang, Wen Su, Margaret Warner, Jan-Åke Gustafsson
As estrogen receptor β(-/-) (ERβ(-/-)) mice age, the ventral prostate (VP) develops increased numbers of hyperplastic, fibroplastic lesions and inflammatory cells. To identify genes involved in these changes, we used RNA sequencing and immunohistochemistry to compare gene expression profiles in the VP of young (2-mo-old) and aging (18-mo-old) ERβ(-/-) mice and their WT littermates. We also treated young and old WT mice with an ERβ-selective agonist and evaluated protein expression. The most significant findings were that ERβ down-regulates androgen receptor (AR) signaling and up-regulates the tumor suppressor phosphatase and tensin homolog (PTEN)...
May 9, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28415558/family-with-sequence-similarity-13c-fam13c-overexpression-is-an-independent-prognostic-marker-in-prostate-cancer
#15
Christoph Burdelski, Laura Borcherding, Martina Kluth, Claudia Hube-Magg, Nathaniel Melling, Ronald Simon, Christina Möller-Koop, Philipp Weigand, Sarah Minner, Alexander Haese, Hans Uwe Michl, Maria Christina Tsourlakis, Frank Jacobsen, Andrea Hinsch, Corinna Wittmer, Patrick Lebok, Stefan Steurer, Jakob R Izbicki, Guido Sauter, Till Krech, Franziska Büscheck, Till Clauditz, Thorsten Schlomm, Waldemar Wilczak
FAM13C, a gene with unknown function is included in several mRNA signatures for prostate cancer aggressiveness. To understand the impact of FAM13C on prognosis and its relationship to molecularly defined subsets, we analyzed FAM13C expression by immunohistochemistry on a tissue microarray containing 12,400 prostate cancer specimens. Results were compared to phenotype, ERG status, genomic deletions of 3p, 5q, 6q and PTEN, and biochemical recurrence. FAM13C was detectable in cell nuclei of cancerous and non-neoplastic prostate cells...
May 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28413162/whole-genome-sequence-of-the-metastatic-pc3-and-lncap-human-prostate-cancer-cell-lines
#16
Inge Seim, Penny L Jeffery, Patrick B Thomas, Colleen C Nelson, Lisa K Chopin
The bone metastasis-derived PC3 and the lymph node metastasis-derived LNCaP prostate cancer cell lines are widely studied, having been described in thousands of publications over the last four decades. Here, we report short-read whole-genome sequencing and de novo assembly of PC3 (ATCC CRL-1435) and LNCaP (clone FGC; ATCC CRL-1740) at ~70X coverage. A known homozygous mutation in TP53 and homozygous loss of PTEN were robustly identified in the PC3 cell line, whereas the LNCaP cell line exhibited a larger number of putative inactivating somatic point and indel mutations (and in particular loss of stop codon events)...
April 16, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/28411207/transdifferentiation-as-a-mechanism-of-treatment-resistance-in-a-mouse-model-of-castration-resistant-prostate-cancer
#17
Min Zou, Roxanne Toivanen, Antonina Mitrofanova, Nicolas Floc'h, Sheida Hayati, Yanping Sun, Clementine Le Magnen, Daniel Chester, Elahe A Mostaghel, Andrea Califano, Mark A Rubin, Michael M Shen, Cory Abate-Shen
Current treatments for castration-resistant prostate cancer (CPRC) that target androgen receptor (AR) signaling improve patient survival, yet ultimately fail. Here we provide novel insights into treatment response for the anti-androgen abiraterone by analyses of a genetically-engineered mouse model (GEMM) with combined inactivation of Trp53 and Pten, which are frequently co-mutated in human CRPC. These NPp53 mice fail to respond to abiraterone, and display accelerated progression to tumors resembling treatment-related CRPC with neuroendocrine differentiation (CRPC-NE) in humans...
April 14, 2017: Cancer Discovery
https://www.readbyqxmd.com/read/28402859/protein-kinase-c-epsilon-cooperates-with-pten-loss-for-prostate-tumorigenesis-through-the-cxcl13-cxcr5-pathway
#18
Rachana Garg, Jorge M Blando, Carlos J Perez, Martin C Abba, Fernando Benavides, Marcelo G Kazanietz
PKCε, an oncogenic member of the PKC family, is aberrantly overexpressed in epithelial cancers. To date, little is known about functional interactions of PKCε with other genetic alterations, as well as the effectors contributing to its tumorigenic and metastatic phenotype. Here, we demonstrate that PKCε cooperates with the loss of the tumor suppressor Pten for the development of prostate cancer in a mouse model. Mechanistic analysis revealed that PKCε overexpression and Pten loss individually and synergistically upregulate the production of the chemokine CXCL13, which involves the transcriptional activation of the CXCL13 gene via the non-canonical nuclear factor κB (NF-κB) pathway...
April 11, 2017: Cell Reports
https://www.readbyqxmd.com/read/28391998/does-smoking-change-expression-patterns-of-the-tumor-suppressor-and-dna-repair-genes-in-the-prostate-gland
#19
Cetin Boran, Engin Kandirali, Serdar Yanik, Hilal Ahsen, Emre Ulukaradağ, Fahri Yilmaz
OBJECTIVES: Somatic mutations can be present in clonally expanded cell populations in nonmalignant tissues, which are detectable at tissue-level resolution. Some of the mutational changes may arise due to smoking. We aimed to find out changes in carcinogenic gene expressions related to smoking in nonmalignant prostate gland epithelia. MATERIALS AND METHODS: The patients who came to the Department of Urology at Abant Izzet Baysal University Medical Faculty from December 2006 to December 2009 for prostate biopsy were questioned for cigarette smoking...
April 6, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28350865/multi-drug-loaded-micelles-delivering-chemotherapy-and-targeted-therapies-directed-against-hsp90-and-the-pi3k-akt-mtor-pathway-in-prostate-cancer
#20
Bao Le, Ginny L Powers, Yu Tong Tam, Nicholas Schumacher, Rita L Malinowski, Laura Steinke, Glen Kwon, Paul C Marker
BACKGROUND: Advanced prostate cancers that are resistant to all current therapies create a need for new therapeutic strategies. One recent innovative approach to cancer therapy is the simultaneous use of multiple FDA-approved drugs to target multiple pathways. A challenge for this approach is caused by the different solubility requirements of each individual drug, resulting in the need for a drug vehicle that is non-toxic and capable of carrying multiple water-insoluble antitumor drugs...
2017: PloS One
keyword
keyword
109732
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"