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https://www.readbyqxmd.com/read/28241429/current-insights-into-long-non-coding-rnas-lncrnas-in-prostate-cancer
#1
REVIEW
Maria A Smolle, Thomas Bauernhofer, Karl Pummer, George A Calin, Martin Pichler
The importance of long non-coding RNAs (lncRNAs) in the pathogenesis of various malignancies has been uncovered over the last few years. Their dysregulation often contributes to or is a result of tumour progression. In prostate cancer, the most common malignancy in men, lncRNAs can promote castration resistance, cell proliferation, invasion, and metastatic spread. Expression patterns of lncRNAs often change during tumour progression; their expression levels may constantly rise (e.g., HOX transcript antisense RNA, HOTAIR), or steadily decrease (e...
February 22, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28240670/a-rare-case-of-omentum-invasive-prostate-cancer-staging-with-psma-pet-ct-imaging-and-response-to-systemic-therapy
#2
Rahul Ladwa, Sonja Gustafson, Elizabeth McCaffrey, Kenneth Miles, Kenneth O'Byrne
The omentum is a rare metastatic site for prostatic adenocarcinoma. We present a case of metastatic castrate-resistant prostate cancer, with progressive omentum invasive prostate cancer identified on prostate-specific membrane antigen (PSMA) PET/CT scan. Omental biopsy revealed metastatic prostate adenocarcinoma, and cabazitaxel chemotherapy was instituted with a prostate-specific antigen biochemical response. Repeat PSMA PET/CT imaging revealed increased avidity in omental metastasis. Despite prostate-specific antigen response, PSMA PET/CT did not correlate with a therapeutic response...
February 24, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28237181/moderate-hypofractionated-postprostatectomy-volumetric-modulated-arc-therapy-with-daily-image-guidance-vmat-igrt-a%C3%A2-mono-institutional-report-on-feasibility-and-acute-toxicity
#3
Sergio Fersino, Umberto Tebano, Rosario Mazzola, Niccolò Giaj-Levra, Francesco Ricchetti, Gioacchino Di Paola, Alba Fiorentino, Gianluisa Sicignano, Stefania Naccarato, Ruggero Ruggieri, Stefano Cavalleri, Filippo Alongi
INTRODUCTION: The aim of this study was to evaluate the acute toxicity profiles of a moderate hypofractionated regimen with volumetric modulated arc therapy (VMAT) in patients with prostate cancer (PC) who underwent radical prostatectomy. MATERIAL AND METHODS: From December 2012 to February 2016, 125 patients, previously having undergone radical prostatectomy, received adjuvant (64 patients) or salvage (61 patients) radiotherapy (RT) inside an institutional protocol of moderate hypofractionation schedule using the VMAT technique (Varian RapidArc, Palo Alto, CA)...
February 6, 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28230260/elevation-of-sharpin-protein-levels-in-prostate-adenocarcinomas-promotes-metastasis-and-impairs-patient-survivals
#4
Hai Huang, Tao Du, Yiming Zhang, Yiming Lai, Kaiwen Li, Xinxing Fan, Dingjun Zhu, Tianxin Lin, Kewei Xu, Jian Huang, Leyuan Liu, Zhenghui Guo
BACKGROUND: SHARPIN, SHANK-associated RH domain interacting protein, associates with a linear ubiquitin chain assembly complex (LUBAC) to regulate inflammation and immunity. It has been reported that SHARPIN is highly expressed in several human tumors including ovarian cancer and liver cancer. We found that SHARPIN is also highly expressed in prostate cancer cell lines of DU145, LNCAP, and PC-3. Suppression of SHARPIN caused an inhibition of NF-κB signal and decreases in tumorigenesis of cultured cells in NOD/SCID mouse model...
February 23, 2017: Prostate
https://www.readbyqxmd.com/read/28226180/a33-shows-similar-sensitivity-to-but-is-more-specific-than-cdx2-as-an-immunomarker-of-colorectal-carcinoma
#5
Newton A C S Wong, Lukasz A Adamczyk, Shanna Evans, Jayne Cullen, Anca Oniscu, Karin A Oien
AIMS: CDX2 is widely used as a sensitive and specific immunomarker for colorectal carcinoma (CRC) but neither this sensitivity nor specificity is absolute. This study is the first known comparison of CDX1 and A33 against CDX2 as immunomarkers for CRC. METHODS AND RESULTS: As a pilot study, whole sections of 51 cases of liver metastatic carcinoma of different origins - colorectum (n=32), breast (n=3), oesophagogastric tract (n=4), lung (n=3), pancreas (n=8), and prostate (n=1) - were immunostained with CDX1, CDX2 and A33...
February 22, 2017: Histopathology
https://www.readbyqxmd.com/read/28216940/epididymal-metastasis-from-prostate-adenocarcinoma-an-unusual-and-challenging-diagnosis-suspected-in-gallium-68-prostate-specific-membrane-antigen-positron-emission-tomography-computed-tomography-and-histologically-confirmed
#6
Sofia Santos-Lopes, João Lobo, Rui Henrique, Jorge Oliveira
A few cases of prostate adenocarcinoma (PCa) metastases to the epididymis have been documented in literature. We report a case of a 69-year-old man with a left epididymal metastasis, 6 years after radical prostatectomy and adjuvant radiation therapy for PCa. Although he developed biochemical recurrence, only gallium-68 prostate-specific membrane antigen-positron emission tomography/computed tomography revealed high uptake in the left testis and retrovesical space. An unrecognized painless firm nodule was palpable on the left epididymis...
January 2017: Urology Annals
https://www.readbyqxmd.com/read/28216939/prostatic-intraepithelial-neoplasia-like-ductal-prostatic-adenocarcinoma-a-case-suitable-for-active-surveillance
#7
Soroush Rais-Bahrami, Melissa R Dillard, Grace G Zhu, Jennifer B Gordetsky
In contrast to typical prostatic ductal adenocarcinoma, prostatic intraepithelial neoplasia (PIN)-like ductal adenocarcinoma is a rare variant of prostate cancer with low-grade clinical behavior. We report a case of a 66-year-old African-American male with an elevated serum prostate-specific antigen who underwent multiparametric prostate magnetic resonance imaging (MRI) and MRI/ultrasound fusion-guided biopsies. Pathology demonstrated low-volume Gleason score 3 + 3 = 6 (Grade Group 1), acinar adenocarcinoma involving one core and PIN-like ductal adenocarcinoma on a separate core...
January 2017: Urology Annals
https://www.readbyqxmd.com/read/28215481/clinical-and-histopathological-characteristics-of-patients-with-prostate-cancer-in-the-biobank-japan-project
#8
Shigekazu Ukawa, Koshi Nakamura, Emiko Okada, Makoto Hirata, Akiko Nagai, Zentaro Yamagata, Kaori Muto, Koichi Matsuda, Toshiharu Ninomiya, Yutaka Kiyohara, Yoichiro Kamatani, Michiaki Kubo, Yusuke Nakamura, Akiko Tamakoshi
BACKGROUND: Prostate cancer is the sixth leading cause of cancer-related deaths in Japan. We aimed to elucidate the clinical and histopathological characteristics of patients with prostate cancer in the BioBank Japan (BBJ) project. METHODS: Four thousand, seven hundred and ninety-three patients diagnosed with prostate cancer in the BBJ project were included. Clinical and histopathological data, including causes of death, were analyzed. Relative survival (RS) rates of prostate cancer were calculated...
February 17, 2017: Journal of Epidemiology
https://www.readbyqxmd.com/read/28214571/encountering-dropped-gallstones-during-robotic-assisted-laparoscopic-radical-prostatectomy
#9
Lisa Brubaker, Michael Allgaeuer, Baris Turkbey, Peter Pinto, Abhinav Sidana
We describe a case of an unusual finding during robotic-assisted laparoscopic radical prostatectomy and bilateral pelvic lymphadenectomy in a 66-year-old male with Stage IIb (T2c, N0, M0) prostate adenocarcinoma. During the operation, intraperitoneal examination of the rectovesical pouch revealed calcifications and stones which were subsequently identified as gallstones. While these stones were not noted initially on this patient's preoperative multiparametric MRI (mpMRI), a retrospective review demonstrated hypointense foci in the rectovesical pouch...
February 15, 2017: Urology
https://www.readbyqxmd.com/read/28196067/body-weight-trajectories-and-risk-of-oesophageal-and-gastric-cardia-adenocarcinomas-a-pooled-analysis-of-nih-aarp-and-plco-studies
#10
Jessica L Petrick, Scott P Kelly, Linda M Liao, Neal D Freedman, Barry I Graubard, Michael B Cook
BACKGROUND: Elevated body mass index (BMI, kg m(-2)) has been consistently associated with oesophageal adenocarcinoma (EA) and gastric cardia adenocarcinoma (GCA) incidence. However, effects of adiposity over the life course in relation to EA/GCA have not been thoroughly explored. METHODS: We pooled two prospective cohort studies: NIH-AARP Diet and Health Study and Prostate, Lung, Colorectal, and Ovarian (PLCO) Cancer Screening Trial, with data on 409 796 individuals (633 EA, 415 GCA)...
February 14, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28195088/serotonin-receptor-4-5-hydroxytryptamine-receptor-type-4-regulates-expression-of-estrogen-receptor-beta-and-cell-migration-in-hormone-naive-prostate-cancer
#11
Yasuhiro Nakamura, Kazue Ise, Yuto Yamazaki, Fumiyoshi Fujishima, Keely M McNamara, Hironobu Sasano
BACKGROUND: Estrogens are considered to potentially play some roles in the development and progression of prostate cancer through estrogen receptor beta (ERβ). However, additional factors which could influence the clinical outcome of the patients through modulating these steroid signalings have also been proposed. Among these, increased expression of serotonin receptor especially that of 5-hydroxytryptamine receptor Type 4 (5-HTR4) has been recently proposed to be involved in autocrine/paracrine mechanisms of castration-resistant prostate cancer, but the presence and clinical significance of 5-HTR4 in hormone-naive prostate cancer (HNPC) and its interaction with hormonal signaling pathways have remained virtually unknown...
January 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28193700/the-nuclear-transport-receptor-importin-11-is-a-tumor-suppressor-that-maintains-pten-protein
#12
Muhan Chen, Dawid G Nowak, Navneet Narula, Brian Robinson, Kaitlin Watrud, Alexandra Ambrico, Tali M Herzka, Martha E Zeeman, Matthias Minderer, Wu Zheng, Saya H Ebbesen, Kendra S Plafker, Carlos Stahlhut, Victoria M Y Wang, Lorna Wills, Abu Nasar, Mireia Castillo-Martin, Carlos Cordon-Cardo, John E Wilkinson, Scott Powers, Raffaella Sordella, Nasser K Altorki, Vivek Mittal, Brendon M Stiles, Scott M Plafker, Lloyd C Trotman
Phosphatase and tensin homologue (PTEN) protein levels are critical for tumor suppression. However, the search for a recurrent cancer-associated gene alteration that causes PTEN degradation has remained futile. In this study, we show that Importin-11 (Ipo11) is a transport receptor for PTEN that is required to physically separate PTEN from elements of the PTEN degradation machinery. Mechanistically, we find that the E2 ubiquitin-conjugating enzyme and IPO11 cargo, UBE2E1, are limiting factors for PTEN degradation...
February 13, 2017: Journal of Cell Biology
https://www.readbyqxmd.com/read/28191651/the-development-of-prostate-adenocarcinoma-in-a-transgender-male-to-female-patient-could-estrogen-therapy-have-played-a-role
#13
Asma Sharif, Neha R Malhotra, Andres M Acosta, Andre A Kajdacsy-Balla, Maarten Bosland, Grace Guzman, Gail S Prins, Michael R Abern
BACKGROUND: Prostate adenocarcinoma (PCa) is a rare diagnosis in the male to female transgender (MtFT) population with only a few case reports published in the current medical literature. Long standing beliefs of androgen suppression conferring a protective effect against prostate cancer development have been challenged by the literature citing adenocarcinoma development in the prostate of rodent models following combined estrogen and testosterone treatment. MATERIALS AND METHODS: We herein present a MtFT patient who presented with high grade PCa following 20 years of exogenous estrogen therapy...
February 13, 2017: Prostate
https://www.readbyqxmd.com/read/28188816/a-chemical-genomics-approach-to-drug-reprofiling-in-oncology-antipsychotic-drug-risperidone-as-a-potential-adenocarcinoma-treatment
#14
Suzanne J Dilly, Andrew J Clark, Andrew Marsh, Daniel A Mitchell, Ricky Cain, Colin W G Fishwick, Paul C Taylor
Drug reprofiling is emerging as an effective paradigm for discovery of cancer treatments. Herein, an antipsychotic drug is immobilised using the Magic Tag(®) chemical genomics tool and screened against a T7 bacteriophage displayed library of polypeptides from Drosophila melanogaster, as a whole genome model, to uncover an interaction with a section of 17-β-HSD10, a proposed prostate cancer target. A computational study and enzyme inhibition assay with full length human 17-β-HSD10 identifies risperidone as a drug reprofiling candidate...
February 8, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28185762/biochemical-control-and-toxicity-for-favorable-and-intermediate-risk-patients-using-real-time-intraoperative-inverse-optimization-prostate-seed-implant-less-is-more
#15
G Shukla, A Sarkar, A Hanlon, E Crockett, H C Chen, J Martelli-Raben, A Glick, B Benge, M Lobis, S Terranova, T Desperito, D Cozzolino, E Kemmerer, F Mourtada, A Raben
PURPOSE: To report the biochemical control rate and clinical outcomes with real-time inverse planning (inverse optimization prostate seed implant [IO-PSI]) for favorable-risk (FR) and intermediate-risk (IR) prostate adenocarcinoma in a community practice setting. This analysis is an extended followup of our initial report, with favorable early biochemical control rate (biochemical nonevidence of disease) of 97% at 4 years. METHODS AND MATERIALS: Three hundred fifty-seven evaluable patients with FR and IR prostate cancer underwent real-time IO-PSI (iodine-125/145 Gy or palladium-103/120 Gy) between 2001 and 2013...
February 6, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28159676/transformation-of-prostatic-adenocarcinoma-to-well-differentiated-neuroendocrine-tumor-after-hormonal-treatment
#16
Syed Gilani, Charles C Guo, Elsa M Li-Ning, Curtis Pettaway, Patricia Troncoso
Carcinoid tumor of the prostate is extremely rare. Here we report a unique case of prostate cancer that underwent complete transformation from conventional adenocarcinoma to carcinoid-like tumor shortly after androgen deprivation treatment (ADT). The patient was a 59years old man who presented with lower urinary tract symptoms. His biopsy specimen demonstrated a high-grade prostatic adenocarcinoma with mixed acinar and ductal features. After ADT for 6months, the patient underwent radical prostatectomy. The post-ADT tumor showed monotonous neoplastic cells with fine granular chromatin forming rosette-like structures, resembling a carcinoid tumor...
January 31, 2017: Human Pathology
https://www.readbyqxmd.com/read/28157696/resveratrol-induces-mitochondria-mediated-caspase-independent-apoptosis-in-murine-prostate-cancer-cells
#17
Sanjay Kumar, Erdal Eroglu, James A Stokes, Karyn Scissum-Gunn, Sabita N Saldanha, Udai P Singh, Upender Manne, Selvarangan Ponnazhagan, Manoj K Mishra
Found in the skins of red fruits, including grapes, resveratrol (RES) is a polyphenolic compound with cancer chemopreventive activity. Because of this activity, it has gained interest for scientific investigations. RES inhibits tumor growth and progression by targeting mitochondria-dependent or -independent pathways. However, further investigations are needed to explore the underlying mechanisms.The present study is focused on examining the role of RES-induced, mitochondria-mediated, caspase-independent apoptosis of prostate cancer cells, namely transgenic adenocarcinoma of mouse prostate (TRAMP) cells...
February 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28155999/accuracy-of-grading-gleason-score-7-prostatic-adenocarcinoma-on-needle-biopsy-influence-of-percent-pattern-4-and-other-histological-factors
#18
Abdelrazak Meliti, Evita Sadimin, Mario Diolombi, Francesca Khani, Jonathan I Epstein
BACKGROUND: Recognition of Gleason pattern 4 in prostatic needle biopsies is crucial for both prognosis and therapy. Recently, it has been recommended to record percent pattern 4 when Gleason score 7 cancer is the highest grade in a case. METHODS: Four hundred and five prostate needle core biopsies received for a second opinion at our institution from February-June, 2015 were prospectively diagnosed with prostatic adenocarcinoma Gleason score 7 as the highest score on review by a consultant urological pathologist...
February 3, 2017: Prostate
https://www.readbyqxmd.com/read/28155149/lectin-histochemistry-for-metastasizing-and-non-metastasizing-cancer-cells
#19
Gerrit Wolters-Eisfeld, Udo Schumacher
Changes in glycosylation of the cancer cell glycocalyx are a hallmark of metastasizing cancers and critically contribute to distant metastasis. In this chapter we concentrate on two lectins capable of specifically binding tumor-associated glycans in cryostat or formalin-fixed, paraffin-embedded tissue sections derived from primary clinical material, genetically engineered mouse models with endogenous cancer formation or xenograft mouse models. The snail lectin of Helix pomatia (HPA) binds N-acetylgalactosamine (GalNAc) that is expressed among others as Tn antigen (O-linked GalNAc) in primary tumors and metastases in several human adenocarcinomas...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28144985/socs3-immunohistochemical-expression-seems-to-support-the-2005-and-2014-international-society-of-urological-pathology-isup-modified-gleason-grading-system
#20
Francesco Pierconti, Maurizio Martini, Tonia Cenci, Gian Luigi Petrone, Riccardo Ricci, Emilio Sacco, Pier Francesco Bassi, Luigi Maria Larocca
BACKGROUND: In the 2014, The International Society of Urological Pathology (ISUP) consensus conference update the grading of prostate, last revised in 2005. In this study we evaluate the SOCS3 immunohistochemical protein expression in different Gleason prostatic adenocarcinoma: classical Gleason grade 3, classical Gleason grade 3 upgraded to Gleason grade 4 according to the ISUP modifications and classical and modified Gleason grade 4. The major conclusions were: (i) Cribriform glands should be assigned a Gleason pattern 4, regardless of morphology; (ii) Glomeruloid glands should be assigned a Gleason pattern 4, regardless of morphology; (iii) Grading of mucinous carcinoma of the prostate should be based on its underlying growth pattern rather than all as pattern 4; and (iv) Intraductal carcinoma of the prostate without invasive carcinoma should not assigned Gleason grade and a comment about aggressive carcinoma probably associated should be made...
February 1, 2017: Prostate
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