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https://www.readbyqxmd.com/read/28100163/a-vector-based-short-hairpin-rna-targeting-aurora-b-suppresses-human-prostatic-carcinoma-growth
#1
Mei Cao, Panpan Qi, Chong Chen, Liju Song, Xuege Wang, Ningzhe Li, Daoyan Wu, Guoku Hu, Jian Zhao
Aurora kinase B, playing a vital, important role in mitosis, is frequently detected to be overexpressed in many cancer cell lines and various tumor tissues, including prostatic carcinoma. Given the essential function of Aurora kinase B in mitosis and its association with tumorigenesis, it might be a drug target for prostatic carcinoma treatment. In our study, short hairpin RNA targeting Aurora kinase B was cloned into a pGPU6 plasmid vector and then transfected into human prostatic carcinoma cells. The expression level of Aurora kinase B was verified by reverse transcription-polymerase chain reaction and Western blot...
February 2017: Technology in Cancer Research & Treatment
https://www.readbyqxmd.com/read/28098871/lectin-pcl-inhibits-the-warburg-effect-of-pc3-cells-by-combining-with-egfr-and-inhibiting-hk2
#2
Hong Zhang, Xia Du, Ting-Ting Sun, Chun-Liu Wang, Ye Li, Shou-Zhen Wu
Prostatic carcinoma is the most aggressive tumor in adult men. Warburg effect is an important characteristic of tumor cell metabolism including prostate cancer cells, in which hexokinase 2 (HK2), a major rate-limiting enzyme involved in Warburg effect, is selectively upregulated. The lectin PCL is a mannose binding lectin which induces tumor cell apoptosis and autophagy. In the present study, we report that PCL could lower glucose consumption and lactate production, shift the Warburg effect by inhibiting the expression of HK2 in PC3 cells and the suppression of HK2 by siRNA reversed the effect of PCL on glucose consumption and lactate production...
January 16, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28098572/metastatic-organotropism-an-intrinsic-property-of-breast-cancer-molecular-subtypes
#3
Shi Wei, Gene P Siegal
It has long been known that some cancers have the propensity to metastasize to certain organs thus creating a nonrandom distribution of sites for distant relapse, a phenomenon known as "metastatic organotropism." Some of these examples include ovary primary to abdominal cavity, prostate primary to bone, and pancreas primary to liver. In contrast, other tumor types, such as mammary and renal cell carcinoma, can relapse in multiple organs although approximately half of advanced breast cancers metastasize to bone...
January 16, 2017: Advances in Anatomic Pathology
https://www.readbyqxmd.com/read/28096925/penile-metastasis-from-primary-transitional-cell-carcinoma-of-the-bladder-sparing-the-urethra
#4
Justin D Oake, Douglas N Drover
Metastatic involvement of the penis is relatively infrequent. Metastasis of transitional cell carcinoma (TCC) is extremely rare. We report a case of bladder TCC with metastases to the penis that spares the urethra - a finding that, to the best of our knowledge, has not been previously reported. Of the documented mechanisms of metastatic transmission to the penis, we suspect the cause was retrograde lymphatic spread. In our case, a 59-year-old male presented to our clinic initially with phimosis and later developed gross hematuria...
November 2016: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/28095874/clinicopathological-study-of-9-cases-of-prostate-cancer-involving-the-rectal-wall
#5
Tao Tang, Zhengduo Yang, Dan Zhang, Jie Qu, Guang Liu, Shiwu Zhang
BACKGROUND: Prostate cancer involving the rectal wall is rare and may lead to diagnostic pitfalls. CASE PRESENTATION: Out of 9504 patients with rectal tumors between January 2003 and January 2015, 9 patients (elderly with a mean age of 74 years) with prostate cancer involving the rectal wall were clinically misdiagnosed with rectal cancer. The lesions were located in the rectum, and included 3 circumferential rectal masses, 1 ulceration lesion, 1 crater-like mass, and 4 protruding lesions...
January 17, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28088870/fatal-relapse-of-myelodysplastic-syndrome-in-a-patient-with-hiv-hepatitis-c-coinfection-treated-with-simeprevir-sofosbuvir
#6
Efemena Michael Diejomaoh, Joseph Clayton Gathe, Carl Craig Mayberry, John Benjamin Clemmons, Bernie Miguel, Alan Glombicki, Benjamin Daquioag
Registrational studies and observational cohorts clearly suggest sustained virologic response (SVR) rates in HIV-/hepatitis C-coinfected patients are similar to monoinfected patients when utilizing interferon-free regimens, and this can be accomplished with agents that are well tolerated with minimal adverse events. These randomized trials that led to the approval of several of our new direct-acting antiviral agents, however, specifically excluded patients who had significant comorbidities and none to our knowledge accepted patients with a history of cancer...
January 1, 2017: Journal of the International Association of Providers of AIDS Care
https://www.readbyqxmd.com/read/28087967/periampullary-carcinoma-with-penile-metastasis
#7
W C Pui, N A Nik Azim
Periampullary carcinoma metastases are usually located at regional nodes, adjacent organs, liver or lung. On the other hand, metastatic penile cancer is uncommon. Penile metastasis usually originates from pelvic region with prostate and bladder being the most frequent primary location. We present a very rare case of periampullary carcinoma with penile metastasis in a 49-year-old man. He initially presented with early ampullary type periampullary carcinoma and had pyloric preserving pancreatoduodenectomy and adjuvant chemotherapy...
December 2016: Medical Journal of Malaysia
https://www.readbyqxmd.com/read/28081573/-prostate-carcinoma-mimics-lung-carcinoma-a-case-report
#8
Konstantinos Drosos, Klaus Höfner
A PSA-negative, advanced adenocarcinoma of the prostate is a rare finding. Expression of thyroid transcription factor-1 (TTF-1) in the tumour in combination with a previous medical history of lung adenocarcinoma could complicate the final diagnosis. To the best of our knowledge, we present the second case of a TTF-1-positive, acinar adenocarcinoma of the prostate.We present the case of a 65-year-old male with surgically treated lung adenocarcinoma; 3 years later we diagnosed adenocarcinoma of the bladder and prostate...
January 12, 2017: Aktuelle Urologie
https://www.readbyqxmd.com/read/28076853/pyruvate-dehydrogenase-expression-is-negatively-associated-with-cell-stemness-and-worse-clinical-outcome-in-prostate-cancers
#9
Yali Zhong, Xiaoli Li, Yasai Ji, Xiaoran Li, Yaqing Li, Dandan Yu, Yuan Yuan, Jian Liu, Huixiang Li, Mingzhi Zhang, Zhenyu Ji, Dandan Fan, Jianguo Wen, Mariusz Adam Goscinski, Long Yuan, Bin Hao, Jahn M Nesland, Zhenhe Suo
Cells generate adenosine-5'-triphosphate (ATP), the major currency for energy-consuming reactions, through mitochondrial oxidative phosphorylation (OXPHOS) and glycolysis. One of the remarkable features of cancer cells is aerobic glycolysis, also known as the "Warburg Effect", in which cancer cells rely preferentially on glycolysis instead of mitochondrial OXPHOS as the main energy source even in the presence of high oxygen tension. One of the main players in controlling OXPHOS is the mitochondrial gatekeeperpyruvate dehydrogenase complex (PDHc) and its major subunit is E1α (PDHA1)...
January 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28074210/diagnostic-value-of-additional-68-ga-psma-pet-before-223-ra-dichloride-therapy-in-patients-with-metastatic-prostate-carcinoma
#10
Axel Bräuer, Kambiz Rahbar, Julia Konnert, Martin Bögemann, Lars Stegger
PURPOSE: Medical imaging plays an important role in selecting patients with metastatic castration-resistant prostate cancer for (223)Ra-dichloride therapy of bone metastases. The purpose of this study was to investigate whether (68)Ga-PSMA-PET has incremental value over conventional imaging for selecting patients suitable for (223)Ra-dichloride therapy. METHODS: In 27 consecutive patients referred for (223)Ra-dichloride therapy additional (68)Ga-PSMA-PET/CT was performed and tracer distribution was evaluated systematically with respect to the detection of visceral metastases and bone metastases with inadequate uptake on bone scintigraphy...
January 11, 2017: Nuklearmedizin. Nuclear Medicine
https://www.readbyqxmd.com/read/28073842/expression-of-cd14-il-10-and-tolerogenic-signature-in-dendritic-cells-inversely-correlate-with-response-to-tarp-vaccination-in-prostate-cancer-patients
#11
Luciano Castiello, Marianna Sabatino, Jiaqiang Ren, Masaki Terabe, Hanh Khuu, Lauren V Wood, Jay A Berzofsky, David F Stroncek
PURPOSE: Despite the vast number of clinical trials conducted so far, Dendritic cell (DC)-based cancer vaccines have mostly shown unsatisfactory results. Factors and manufacturing procedures essential for these therapeutics to induce effective anti-tumor immune responses have yet to be fully characterized. We here aimed to identify DC markers correlating with clinical and immunological response in a prostate carcinoma vaccination regimen. EXPERIMENTAL DESIGN: We performed an extensive characterization of DCs used to vaccinate 18 prostate carcinoma patients enrolled in a pilot trial of TCR gamma alternate reading frame protein (TARP) peptide vaccination (NCT00908258)...
January 10, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28067867/germline-brca2-mutations-drive-prostate-cancers-with-distinct-evolutionary-trajectories
#12
Renea A Taylor, Michael Fraser, Julie Livingstone, Shadrielle Melijah G Espiritu, Heather Thorne, Vincent Huang, Winnie Lo, Yu-Jia Shiah, Takafumi N Yamaguchi, Ania Sliwinski, Sheri Horsburgh, Alice Meng, Lawrence E Heisler, Nancy Yu, Fouad Yousif, Melissa Papargiris, Mitchell G Lawrence, Lee Timms, Declan G Murphy, Mark Frydenberg, Julia F Hopkins, Damien Bolton, David Clouston, John D McPherson, Theodorus van der Kwast, Paul C Boutros, Gail P Risbridger, Robert G Bristow
Germline mutations in the BRCA2 tumour suppressor are associated with both an increased lifetime risk of developing prostate cancer (PCa) and increased risk of aggressive disease. To understand this aggression, here we profile the genomes and methylomes of localized PCa from 14 carriers of deleterious germline BRCA2 mutations (BRCA2-mutant PCa). We show that BRCA2-mutant PCa harbour increased genomic instability and a mutational profile that more closely resembles metastastic than localized disease. BRCA2-mutant PCa shows genomic and epigenomic dysregulation of the MED12L/MED12 axis, which is frequently dysregulated in metastatic castration-resistant prostate cancer (mCRPC)...
January 9, 2017: Nature Communications
https://www.readbyqxmd.com/read/28065811/huge-prostatic-utricle-with-transitional-cell-carcinoma-in-an-adult
#13
Anil Kumar N, Sreeranga Y L, Tyagi A, Vijayalakshmi Devi B
A 21-year-old man with pain lower abdomen and hematuria of 10 days duration was evaluated and found to have large cystic lesion behind the urinary bladder and was confirmed to be a large prostatic utricle with solid component on contrast enhanced computed tomography (CECT), magnetic resonance imaging (MRI) and on Transrectal ultrasonography (TRUS). Post operative histopathology revealed transitional cell carcinoma.
January 5, 2017: Urology
https://www.readbyqxmd.com/read/28063603/prostate-specific-membrane-antigen-targeted-ligand-positron-emission-tomography-computed-tomography-and-immunohistochemical-findings-in-a-patient-with-synchronous-metastatic-penile-and-prostate-cancer
#14
Michael Froehner, Friederike Kuithan, Klaus Zöphel, Ulrike Heberling, Michael Laniado, Manfred P Wirth
A 68-year-old man presented with synchronous metastatic penile and prostate cancer. 68Ga-labeled prostate-specific membrane antigen-targeted ligand positron emission tomography/computed tomography (PSMA-PET/CT) revealed tracer uptake in inguinal, pelvic, and retroperitoneal metastases. Lymph node biopsies and immunohistochemical staining revealed that both cancers involved the lymph nodes and expressed PSMA. In the deposits of penile squamous cell carcinoma, PSMA expression was seen in tumor vessels and may explain the PSMA-PET/CT positivity of inguinal nodes involved in squamous cell carcinoma...
January 4, 2017: Urology
https://www.readbyqxmd.com/read/28060330/hyperpolarized-13c-metabolic-magnetic-resonance-spectroscopy-and-imaging
#15
Eugen Kubala, Kim A Muñoz-Álvarez, Geoffrey Topping, Christian Hundshammer, Benedikt Feuerecker, Pedro A Gómez, Giorgio Pariani, Franz Schilling, Steffen J Glaser, Rolf F Schulte, Marion I Menzel, Markus Schwaiger
In the past decades, new methods for tumor staging, restaging, treatment response monitoring, and recurrence detection of a variety of cancers have emerged in conjunction with the state-of-the-art positron emission tomography with (18)F-fluorodeoxyglucose ([(18)F]-FDG PET). (13)C magnetic resonance spectroscopic imaging ((13)CMRSI) is a minimally invasive imaging method that enables the monitoring of metabolism in vivo and in real time. As with any other method based on (13)C nuclear magnetic resonance (NMR), it faces the challenge of low thermal polarization and a subsequent low signal-to-noise ratio due to the relatively low gyromagnetic ratio of (13)C and its low natural abundance in biological samples...
December 30, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28058847/focal-signet-ring-cell-high-grade-prostatic-intraepithelial-neoplasia-on-needle-biopsy
#16
Guang-Qian Xiao, Pamela D Unger
Signet ring cell prostatic intraepithelial neoplasia is a rare speculated variant of high-grade prostatic intraepithelial neoplasia (HGPIN). Here, we present a free-standing and isolated signet ring cell HGPIN that was not associated with invasive carcinoma on needle biopsy and demonstrated the existence of this type of HGPIN variant. The differentiation between HGPIN and intraductal carcinoma of prostate is also discussed.
December 1, 2016: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28054315/the-missing-link-in-the-diagnostic-pathway-of-prostate-cancer
#17
Arne Vidar Tind Wøyen, Gergely Laczkó, Søren Høyer, Laszlo Hegyi
Prostate cancer is one of the most common cancers in the Western world. It is among the leading causes of cancer related death. While its incidence and survival increased significantly during the last few decades in Denmark, the mortality rate did not change for patients younger than 80 year old. Development of new techniques, such as multiparametric MRI, helps to increase the accuracy of diagnosis. However, a missing link in the diagnostic pathway may result in mistreatment if an acinar adenocarcinoma of prostate is transformed into a neuroendocrine phenotype such as small cell carcinoma...
January 4, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28052685/occurrence-of-malignancies-after-kidney-transplantation-in-adults-slovak-multicenter-experience
#18
Z Zilinska, M Sersenova, M Chrastina, J Breza Sr, L Bena, T Baltesova, A Jurcina, R Roland, E Lackova, M Cellar, L Laca, I Dedinska
Malignancies are one of the three major causes of renal recipient´s death with a functioning graft after cardiovascular diseases and infections. Among the variety of risk factors, including conventional and specific to transplant recipients, the duration of immunosuppressive therapy, the intensity of therapy, and the type of immunosuppressive agent all have an impact on development of post-transplant malignancy. The aim of our retrospective study was to document the incidence, the type of malignancies, the patient/graft survival in the group of kidney transplant recipients in Slovak Republic, and to identify the factors which influenced the outcome...
January 5, 2017: Neoplasma
https://www.readbyqxmd.com/read/28047007/we-de-bra-03-construction-of-an-ultrasound-guidance-platform-for-image-guided-radiotherapy-with-the-intent-to-treat-transitional-cell-carcinoma
#19
J Sick, N Rancilio, C Fulkerson, P LaPetina, J Poulson, D Knapp, K Stantz
PURPOSE: Ultrasound (US) is a noninvasive, nonradiographic imaging technique with high spatial and temporal resolution that can be used for localizing soft-tissue structures and tumors in real-time during radiotherapy (inter- and intra-fraction). A detailed methodology integrating 3D-US within RT is presented. This method is easier to adopt into current treatment protocol than current US based systems and reduces user variability for image acquisition, thus eliminating transducer induced changes that limit CT planning system...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046495/tu-h-campus-tep3-02-in-situ-dose-painting-using-gold-nanoparticles-released-from-cylindrically-shaped-fiducials-during-external-beam-radiation-therapy
#20
R Mueller, Y Hao, J Hesser, W Ngwa
PURPOSE: Recent studies have shown that the presence of Gold Nanoparticles (GNPs) in tumor tissue can lead to significant dose enhancement (DE) during External Beam Radiation Therapy (EBRT). In this in-silico study we investigate EBRT with in-situ dose painting using GNPs released from cylindrically shaped GNP-loaded fiducials. METHODS: Reported Biologically Target/Tumor Volumes (BTVs) for 12 prostate carcinoma patients were employed in this study. Distribution of the GNPs after burst release from the fiducial (1...
June 2016: Medical Physics
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