Oncology Commons^™

Prostate Imaging Reporting And Data System Score (Pi-Rads) And Glutathione S-Transferase P1 Methylation Status (Gst-P1) In The Diagnosis Of Prostate Cancer Patients With Borderline Psa Values, Marius Stan, Vladimir Botnarciuc, Andra Iulia Suceveanu, Andreea Cristina Costea, Adrian Paul Suceveanu, Laura Mazilu, Ciprian Iorga, Tony Hangan, Corneliu Tudor, Dragos Epistatu, Sergiu Chirila, Viorel Gherghina, Felix Voinea

Journal of Mind and Medical Sciences

Objectives. The objective of this study was to evaluate the potential use of Prostate Imaging – Reporting and Data System version 2 (PI-RADS) in combination with Glutathione S-transferase P1 (GST-P1) expression for an improved diagnosis of prostate cancer, in patients with inconclusive values of prostate-specific antigen (PSA). Materials and Methods. The study was conducted on 80 patients for whom PSA values were evaluated and were found to be inconclusive (4-10 ng/ml). These patients underwent imagistic evaluation (PI-RADS), followed by transurethral prostate biopsy, with the evaluation of GST-P1 expression and histopathological examination (for diagnosis confirmation). Results. By combining the results of …

Reversing The Effects Of Androgen-Deprivation Therapy In Men With Metastatic Castration-Resistant Prostate Cancer, Catherine H Marshall, Jessa Tunacao, Varun Danda, Hua-Ling Tsai, John Barber, Rakhee Gawande, Clifford R Weiss, Samuel R Denmeade, Corinne Joshu

Department of Medical Oncology Faculty Papers

OBJECTIVE: To investigate whether bipolar androgen therapy (BAT), involving rapid cyclic administration of high-dose testosterone, as a novel treatment for metastatic castration-resistant prostate cancer (mCRPC) promotes improvements in body composition and associated improvements in lipid profiles and quality of life.

PATIENTS AND METHODS: Men from two completed trials with computed tomography imaging at baseline and after three cycles of BAT were included. Cross-sectional areas of psoas muscle, visceral and subcutaneous fat were measured at the L3 vertebral level. Functional Assessment of Chronic Illness Therapy - Fatigue questionnaire and 36-item short-form health survey were used to assess quality of life.

RESULTS: …

A Deep Learning Approach To Diagnostic Classification Of Prostate Cancer Using Pathology–Radiology Fusion, Pegah Khosravi, Maria Lysandrou, Mahmoud Eljalby, Qianzi Li, Ehsan Kazemi, Pantelis Zisimopoulos, Alexandros Sigaras, Matthew Brendel, Josue Barnes, Camir Ricketts, Dmitry Meleshko, Andy Yat, Timothy D. Mcclure, Brian D. Robinson, Andrea Sboner, Olivier Elemento, Bilal Chughtai, Iman Hajirasouliha

Publications and Research

Background

A definitive diagnosis of prostate cancer requires a biopsy to obtain tissue for pathologic analysis, but this is an invasive procedure and is associated with complications.

Purpose

To develop an artificial intelligence (AI)-based model (named AI-biopsy) for the early diagnosis of prostate cancer using magnetic resonance (MR) images labeled with histopathology information.

Study Type

Retrospective.

Population

Magnetic resonance imaging (MRI) data sets from 400 patients with suspected prostate cancer and with histological data (228 acquired in-house and 172 from external publicly available databases).

Field Strength/Sequence

1.5 to 3.0 Tesla, T2-weighted image pulse sequences.

Assessment

MR images reviewed and selected …

Framework For Algorithmically Optimizing Longitudinal Health Outcomes: Examples In Cancer Radiotherapy And Occupational Radiation Protection, Lydia Joyce Wilson

LSU Doctoral Dissertations

Background: Advancements in the treatment of non-infectious disease have enabled survival rates to steadily increase in recent decades (e.g., diabetes, heart disease, and cancer). Epidemiological studies have revealed that the treatments for these diseases can have life-threatening and/or life–altering effects. Thus, realizing the full beneficial potential of advanced treatments necessitates new tools to algorithmically consider all major components of the health outcome, including benefit and detriment. The goal of this dissertation was to develop a framework for improving projected health outcomes following planned radiation exposures in consideration of all beneficial and detrimental, early and late, and fatal and non-fatal …

Development And Validation Of A 28-Gene Hypoxia-Related Prognostic Signature For Localized Prostate Cancer., Lingjian Yang, Darren Roberts, Mandeep Takhar, Nicholas Erho, Becky A.S. Bibby, Niluja Thiruthaneeswaran, Vinayak Bhandari, Wei-Chen Cheng, Syed Haider, Amy M.B. Mccorry, Darragh Mcart, Suneil Jain, Mohammed Alshalalfa, Ashley Ross, Edward Schaffer, Robert Den, R. Jeffrey Karnes, Eric Klein, Peter J. Hoskin, Stephen J. Freedland, Alastair D. Lamb, David E. Neal, Francesca M. Buffa, Robert G. Bristow, Paul C. Boutros, Elai Davicioni, Ananya Choudhury, Catharine M.L. West

Department of Radiation Oncology Faculty Papers

BACKGROUND: Hypoxia is associated with a poor prognosis in prostate cancer. This work aimed to derive and validate a hypoxia-related mRNA signature for localized prostate cancer.

METHOD: Hypoxia genes were identified in vitro via RNA-sequencing and combined with in vivo gene co-expression analysis to generate a signature. The signature was independently validated in eleven prostate cancer cohorts and a bladder cancer phase III randomized trial of radiotherapy alone or with carbogen and nicotinamide (CON).

RESULTS: A 28-gene signature was derived. Patients with high signature scores had poorer biochemical recurrence free survivals in six of eight independent cohorts of prostatectomy-treated patients …

Optimizing Vaccine Immunotherapy For Prostate Cancer, G. Hattier, E. K. Bongiorno, C. Portocarrero, Trevor R. Baybutt, Adam E. Snook, U. Rodeck

Sigma Xi Student Research Day

Introduction: Treatment options for metastatic prostate cancer are limited and cures are rare. In other cancers immunotherapy has shown remarkable efficacy in certain patient subsets particularly when combined with other treatment modalities. Our previous work showed that combining radiation and vaccine therapy slows the growth of syngeneic prostate cancer in mice more effectively than single modality treatment arms. Here we tested the hypothesis that addition of immune checkpoint inhibitors targeting the PD1/PD-L1 axis further improves efficacy of the dual radiation/vaccine treatment.

Methods: Mice were injected with tumor cells expressing human prostate specific antigen (TPSA-23). The mice were divided into six …

A Phase Ii Randomized Trial Of Observation Versus Stereotactic Ablative Radiation For Oligometastatic Prostate Cancer (Oriole)., Noura Radwan, Ryan Phillips, Ashley Ross, Steven P. Rowe, Michael A. Gorin, Emmanuel S. Antonarakis, Curtiland Deville, Stephen Greco, Samuel Denmeade, Channing Paller, Daniel Y. Song, Maximilian Diehn, Hao Wang, Michael Carducci, Kenneth J. Pienta, Martin G. Pomper, Theodore L. Deweese, Adam Dicker, Mario Eisenberger, Phuoc T. Tran

Department of Radiation Oncology Faculty Papers

BACKGROUND: We describe a randomized, non-blinded Phase II interventional study to assess the safety and efficacy of stereotactic ablative radiotherapy (SABR) for hormone-sensitive oligometastatic prostate adenocarcinoma, and to describe the biology of the oligometastatic state using immunologic, cellular, molecular, and functional imaging correlates. 54 men with oligometastatic prostate adenocarcinoma will be accrued. The primary clinical endpoint will be progression at 6 months from randomization with the hypothesis that SABR to all metastases will forestall progression by disrupting the metastatic process. Secondary clinical endpoints will include local control at 6 months post-SABR, toxicity and quality of life, and androgen deprivation therapy …

Prostate Brachytherapy Seed Migration To The Heart Seen On Cardiovascular Computed Tomographic Angiography, Shilpa Sachdeva, Nneka S. Udechukwu, Hossam Elbelasi, Kevin P. Landwehr, William H. St. Clair, Michael A. Winkler

Radiation Medicine Faculty Publications

Brachytherapy consists of placing radioactive sources into or adjacent to tumors, to deliver conformal radiation treatment. The technique is used for treatment of primary malignancies and for salvage in recurrent disease. Permanent prostate brachytherapy seeds are small metal implants containing radioactive sources of I-125, Pd-103, or Cs-131 encased in a titanium shell. They can embolize through the venous system to the lungs or heart and subsequently be detected by cardiovascular computed tomography. Cardiovascular imagers should be aware of the appearance of migrated seeds, as their presence in the chest is generally benign, so that unnecessary worry and testing are avoided. …

Salvage Brachytherapy In Combination With Interstitial Hyperthermia For Locally Recurrent Prostate Carcinoma Following External Beam Radiation Therapy: A Prospective Phase Ii Study., Andrzej M Kukiełka, Vratislav Strnad, Paul R. Stauffer, Tomasz Dąbrowski, Marcin Hetnał, Damian Nahajowski, Tomasz Walasek, Piotr Brandys, Robert Matys

Department of Radiation Oncology Faculty Papers

Optimal treatment for patients with only local prostate cancer recurrence after external beam radiation therapy (EBRT) failure remains unclear. Possible curative treatments are radical prostatectomy, cryosurgery, and brachytherapy. Several single institution series proved that high-dose-rate brachytherapy (HDRBT) and pulsed-dose-rate brachytherapy (PDRBT) are reasonable options for this group of patients with acceptable levels of genitourinary and gastrointestinal toxicity. A standard dose prescription and scheme have not been established yet, and the literature presents a wide range of fractionation protocols. Furthermore, hyperthermia has shown the potential to enhance the efficacy of re-irradiation. Consequently, a prospective trial is urgently needed to attain clear …