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Urology

Thomas Jefferson University

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Full-Text Articles in Medicine and Health Sciences

Master Transcription Factor Reprogramming Unleashes Selective Translation Promoting Castration Resistance And Immune Evasion In Lethal Prostate Cancer, Sandra Santasusagna, Shijia Zhu, Vijayakumar Jawalagatti, Marc Carceles-Cordon, Adam Ertel, Saioa Garcia-Longarte, Won-Min Song, Naoto Fujiwara, Peiyao Li, Isabel Mendizabal, Daniel P. Petrylak, William Kevin Kelly, E. Premkumar Reddy, Liguo Wang, Matthew J. Schiewer, Amaia Lujambio, Jeffrey Karnes, Karen E. Knudsen, Carlos Cordon-Cardo, Haidong Dong, Haojie Huang, Arkaitz Carracedo, Yujin Hoshida, Veronica Rodriguez-Bravo, Josep Domingo-Domenech Dec 2023

Master Transcription Factor Reprogramming Unleashes Selective Translation Promoting Castration Resistance And Immune Evasion In Lethal Prostate Cancer, Sandra Santasusagna, Shijia Zhu, Vijayakumar Jawalagatti, Marc Carceles-Cordon, Adam Ertel, Saioa Garcia-Longarte, Won-Min Song, Naoto Fujiwara, Peiyao Li, Isabel Mendizabal, Daniel P. Petrylak, William Kevin Kelly, E. Premkumar Reddy, Liguo Wang, Matthew J. Schiewer, Amaia Lujambio, Jeffrey Karnes, Karen E. Knudsen, Carlos Cordon-Cardo, Haidong Dong, Haojie Huang, Arkaitz Carracedo, Yujin Hoshida, Veronica Rodriguez-Bravo, Josep Domingo-Domenech

Department of Medical Oncology Faculty Papers

Signaling rewiring allows tumors to survive therapy. Here we show that the decrease of the master regulator microphthalmia transcription factor (MITF) in lethal prostate cancer unleashes eukaryotic initiation factor 3B (eIF3B)-dependent translation reprogramming of key mRNAs conferring resistance to androgen deprivation therapy (ADT) and promoting immune evasion. Mechanistically, MITF represses through direct promoter binding eIF3B, which in turn regulates the translation of specific mRNAs. Genome-wide eIF3B enhanced cross-linking immunoprecipitation sequencing (eCLIP-seq) showed specialized binding to a UC-rich motif present in subsets of 5' untranslated regions. Indeed, translation of the androgen receptor and major histocompatibility complex I (MHC-I) through this motif …


Intensity Modulated Radiation Therapy With Stereotactic Body Radiation Therapy Boost For Unfavorable Prostate Cancer: Five-Year Outcomes, Michael Carrasquilla, Tamir Sholklapper, Abigail Pepin, Nicole Hodgins, Siyuan Lei, Abdul Rashid, Malika Danner, Alan Zwart, Grecia Bolanos, Marilyn Ayoob, Thomas Yung, Nima Aghdam, Brian Collins, Simeng Suy, Deepak Kumar, Ryan Hankins, Keith Kowalczyk, Nancy Dawson, Sean Collins Nov 2023

Intensity Modulated Radiation Therapy With Stereotactic Body Radiation Therapy Boost For Unfavorable Prostate Cancer: Five-Year Outcomes, Michael Carrasquilla, Tamir Sholklapper, Abigail Pepin, Nicole Hodgins, Siyuan Lei, Abdul Rashid, Malika Danner, Alan Zwart, Grecia Bolanos, Marilyn Ayoob, Thomas Yung, Nima Aghdam, Brian Collins, Simeng Suy, Deepak Kumar, Ryan Hankins, Keith Kowalczyk, Nancy Dawson, Sean Collins

Einstein Health Papers

PURPOSE: Intensity-modulated radiation therapy (IMRT) with brachytherapy boost for unfavorable prostate cancer has been shown to improve biochemical relapse-free survival compared to IMRT alone. Stereotactic body radiation therapy (SBRT) is a less-invasive alternative to brachytherapy. Early outcomes utilizing SBRT boost suggest low rates of high-grade toxicity with a maintained patient-reported quality of life. Here, we report the 5-year progression-free survival (PFS) and prostate cancer-specific survival (PCSS) of patients treated with IMRT plus SBRT boost.

MATERIALS AND METHODS: Between 2008 and 2020, 255 patients with unfavorable prostate cancer were treated with robotic SBRT (19.5 Gy in three fractions) followed by fiducial-guided …


Targeting The Αvβ3/Ngr2 Pathway In Neuroendocrine Prostate Cancer, Anna Testa, Fabio Quaglia, Nicole M. Naranjo, Cecilia E. Verrillo, Christopher D. Shields, Stephen Lin, Maxwell W. Pickles, Drini F. Hamza, Tami Von Schalscha, David A. Cheresh, Benjamin E Leiby, Qin Liu, Jianyi Ding, William K. Kelly, D. Craig Hooper, Eva Corey, Edward F. Plow, Dario C. Altieri, Lucia R. Languino Nov 2023

Targeting The Αvβ3/Ngr2 Pathway In Neuroendocrine Prostate Cancer, Anna Testa, Fabio Quaglia, Nicole M. Naranjo, Cecilia E. Verrillo, Christopher D. Shields, Stephen Lin, Maxwell W. Pickles, Drini F. Hamza, Tami Von Schalscha, David A. Cheresh, Benjamin E Leiby, Qin Liu, Jianyi Ding, William K. Kelly, D. Craig Hooper, Eva Corey, Edward F. Plow, Dario C. Altieri, Lucia R. Languino

Department of Pharmacology, Physiology, and Cancer Biology Faculty Papers

Highly aggressive, metastatic, neuroendocrine prostate cancer, which typically develops from prostate cancer cells acquiring resistance to androgen deprivation therapy, is associated with limited treatment options and hence poor prognosis. We have previously demonstrated that the αVβ3 integrin is over-expressed in neuroendocrine prostate cancer. We now show that LM609, a monoclonal antibody that specifically targets the human αVβ3 integrin, hinders the growth of neuroendocrine prostate cancer patient-derived xenografts in vivo. Our group has recently identified a novel αVβ3 integrin binding partner, NgR2, responsible for regulating the expression of neuroendocrine markers and for inducing neuroendocrine differentiation in prostate cancer cells. Through in …


Xaluritamig, A Steap1 × Cd3 Xmab 2+1 Immune Therapy For Metastatic Castration-Resistant Prostate Cancer: Results From Dose Exploration In A First-In-Human Study, William K. Kelly, Daniel C. Danila, Chia-Chi Lin, Jae-Lyun Lee, Nobuaki Matsubara, Patrick J. Ward, Andrew J. Armstrong, David Pook, Miso Kim, Tanya B. Dorff, Stefanie Fischer, Yung-Chang Lin, Lisa G. Horvath, Christopher Sumey, Zhao Yang, Gabor Jurida, Kristen M. Smith, Jamie N. Connarn, Hweixian L. Penny, Julia Stieglmaier, Leonard J. Appleman Oct 2023

Xaluritamig, A Steap1 × Cd3 Xmab 2+1 Immune Therapy For Metastatic Castration-Resistant Prostate Cancer: Results From Dose Exploration In A First-In-Human Study, William K. Kelly, Daniel C. Danila, Chia-Chi Lin, Jae-Lyun Lee, Nobuaki Matsubara, Patrick J. Ward, Andrew J. Armstrong, David Pook, Miso Kim, Tanya B. Dorff, Stefanie Fischer, Yung-Chang Lin, Lisa G. Horvath, Christopher Sumey, Zhao Yang, Gabor Jurida, Kristen M. Smith, Jamie N. Connarn, Hweixian L. Penny, Julia Stieglmaier, Leonard J. Appleman

Kimmel Cancer Center Faculty Papers

ABSTRACT : Xaluritamig (AMG 509) is a six-transmembrane epithelial antigen of the prostate 1 (STEAP1)-targeted T-cell engager designed to facilitate lysis of STEAP1-expressing cancer cells, such as those in advanced prostate cancer. This first-in-human study reports monotherapy dose exploration for patients with metastatic castration-resistant prostate cancer (mCRPC), primarily taxane pretreated. Ninety-seven patients received ≥1 intravenous dose ranging from 0.001 to 2.0 mg weekly or every 2 weeks. MTD was identified as 1.5 mg i.v. weekly via a 3-step dose. The most common treatment-related adverse events were cytokine release syndrome (CRS; 72%), fatigue (45%), and myalgia (34%). CRS occurred primarily during …


Penile Prosthesis Implantation After Radiation Therapy For Prostate Cancer, Joon Yau Leong, Paul Chung Jul 2023

Penile Prosthesis Implantation After Radiation Therapy For Prostate Cancer, Joon Yau Leong, Paul Chung

Department of Urology Faculty Papers

No abstract provided.


The Role Of Salvage Radical Prostatectomy In Patients With Radiation-Resistant Prostate Cancer, Jake Drobner, Alain Kaldany, Mihir S. Shah, Saum Ghodoussipour Jul 2023

The Role Of Salvage Radical Prostatectomy In Patients With Radiation-Resistant Prostate Cancer, Jake Drobner, Alain Kaldany, Mihir S. Shah, Saum Ghodoussipour

Department of Urology Faculty Papers

There are multiple treatment strategies for patients with localized prostate adenocarcinoma. In intermediate- and high-risk patients, external beam radiation therapy demonstrates effective long-term cancer control rates comparable to radical prostatectomy. In patients who opt for initial radiotherapy but have a local recurrence of their cancer, there is no unanimity on the optimal salvage approach. The lack of randomized trials comparing surgery to other local salvage therapy or observation makes it difficult to ascertain the ideal management. A narrative review of existing prospective and retrospective data related to salvage radical prostatectomy after radiation therapy was undertaken. Based on retrospective and prospective …


Omitting The Systematic Prostate Biopsy: Ready For Prime Time?, Joon Yau Leong, Kerith R. Wang, Thenappan Chandrasekar Jul 2023

Omitting The Systematic Prostate Biopsy: Ready For Prime Time?, Joon Yau Leong, Kerith R. Wang, Thenappan Chandrasekar

Department of Urology Faculty Papers

No abstract provided.


Impact Of An Expanded Definition Of Family History On Outcomes Of Active Surveillance For Prostate Cancer, Adam C. Schneider, Thenappan Chandrasekar, Nicholas Bowler, Ryan Fogg, Joon Yau Leong, Andrew Gusev, Linda H. Rodgers, Shelley R. Mccormick, Douglas M. Dahl, Jason A. Efstathiou, Michael L. Blute, Anthony L. Zietman, Chin-Lee Wu, Matthew R. Smith, Eliezer M. Van Allen, Adam S. Feldman, Keyan Salari Jun 2023

Impact Of An Expanded Definition Of Family History On Outcomes Of Active Surveillance For Prostate Cancer, Adam C. Schneider, Thenappan Chandrasekar, Nicholas Bowler, Ryan Fogg, Joon Yau Leong, Andrew Gusev, Linda H. Rodgers, Shelley R. Mccormick, Douglas M. Dahl, Jason A. Efstathiou, Michael L. Blute, Anthony L. Zietman, Chin-Lee Wu, Matthew R. Smith, Eliezer M. Van Allen, Adam S. Feldman, Keyan Salari

Department of Urology Faculty Papers

PURPOSE: Despite family history being an established risk factor for prostate cancer, the role of a broader definition of family history inclusive of not just prostate cancer but other genetically related malignancies has not been investigated in the active surveillance population. Here, we evaluate the impact of an expanded definition of family history on active surveillance outcomes.

MATERIALS AND METHODS: Patients undergoing active surveillance for prostate cancer at Massachusetts General Hospital from 1997-2019 with detailed data available on family cancer history were identified. Primary outcome was biopsy progression-free survival, and secondary outcomes were treatment-free survival, adverse pathological features at prostatectomy, …


Protocol Of A Multicentre Randomised Controlled Trial Assessing Transperineal Prostate Biopsy To Reduce Infectiouscomplications, Jim Hu, Alec Zhu, Andrew Vickers, Mohamad Ezzeddine Allaf, Behfar Ehdaie, Anthony Schaeffer, Christian Pavlovich, Ashley E. Ross, David A. Green, Gerald Wang, Serge Ginzburg, Jeffrey S. Montgomery, Arvin George, John N. Graham, Benjamin T. Ristau, Andres Correa, Jonathan E. Shoag, Keith J. Kowalczyk, Tenny R. Zhang, E.M. Schaeffer May 2023

Protocol Of A Multicentre Randomised Controlled Trial Assessing Transperineal Prostate Biopsy To Reduce Infectiouscomplications, Jim Hu, Alec Zhu, Andrew Vickers, Mohamad Ezzeddine Allaf, Behfar Ehdaie, Anthony Schaeffer, Christian Pavlovich, Ashley E. Ross, David A. Green, Gerald Wang, Serge Ginzburg, Jeffrey S. Montgomery, Arvin George, John N. Graham, Benjamin T. Ristau, Andres Correa, Jonathan E. Shoag, Keith J. Kowalczyk, Tenny R. Zhang, E.M. Schaeffer

Einstein Health Papers

Introduction Approximately one million prostate biopsies are performed annually in the USA, and most are performed using a transrectal approach under local anaesthesia. The risk of postbiopsy infection is increasing due to increasing antibiotic resistance of rectal flora. Single-centre studies suggest that a clean, percutaneous transperineal approach to prostate biopsy may have a lower risk of infection. To date, there is no high-level evidence comparing transperineal versus transrectal prostate biopsy. We hypothesise that transperineal versus transrectal prostate biopsy under local anaesthesia has a significantly lower risk of infection, similar pain/discomfort levels and comparable detection of non-low-grade prostate cancer.

Methods and …


Stent Vs. Stent-Less Ileal Conduits After Radical Cystectomies: Is There Difference In Early Postoperative Outcomes?, Rishabh K. Simhal, Md, Daniel Givner, Bs, Kerith Wang, Ba, Yash B. Shah, Zachary Prebay, Md, Daniel P. Simon, Md, Costas D. Lallas, Md, Leonard G. Gomella, Md, Mihir M. Shah, Md Apr 2023

Stent Vs. Stent-Less Ileal Conduits After Radical Cystectomies: Is There Difference In Early Postoperative Outcomes?, Rishabh K. Simhal, Md, Daniel Givner, Bs, Kerith Wang, Ba, Yash B. Shah, Zachary Prebay, Md, Daniel P. Simon, Md, Costas D. Lallas, Md, Leonard G. Gomella, Md, Mihir M. Shah, Md

Department of Urology Faculty Posters

Placing ureteral stents at the ureteroileal anastomosis for radical cystectomy with ileal conduit (RCIC) diversion has long been common practice, which has recently been called into question. In this study, we aim to investigate the difference in 30-day outcomes between patients who did and did not receive ureteral stents after RCIC.


The Risk Of Malignant Degeneration Of Müllerian Derivatives In Pmds: A Review Of The Literature, Federica Gagliardi, Augusto Lauro, Livia De Anna, Domenico Tripodi, Anna Esposito, Flavio Forte, Daniele Pironi, Eleonora Lori, Patrizia Alba Gentile, Ignazio R. Marino, Ernesto T. Figueroa, Vito D'Andrea Apr 2023

The Risk Of Malignant Degeneration Of Müllerian Derivatives In Pmds: A Review Of The Literature, Federica Gagliardi, Augusto Lauro, Livia De Anna, Domenico Tripodi, Anna Esposito, Flavio Forte, Daniele Pironi, Eleonora Lori, Patrizia Alba Gentile, Ignazio R. Marino, Ernesto T. Figueroa, Vito D'Andrea

Department of Urology Faculty Papers

Persistent Müllerian Duct Syndrome (PMDS) is a rare autosomal recessive disorder of sex development characterized by the presence of fallopian tubes, uterus and upper one-third of the vagina in individuals with XY genotype and normal male phenotype. The main complications of PMDS are infertility and the rare risk of malignant degeneration of both testicular and Müllerian derivatives. We report the case of a 49-year-old man who, during repair of an incisional hernia, was incidentally found to have a uterine-like structure posterior to the bladder. In the past at the age of 18 months, he had undergone bilateral orchidopexies for bilateral …


Trends In Male And Female Urethral Endoscopic Management And Urethroplasty Using The Trinetx Database, Adam M. Ostrovsky, Zachary J. Prebay, Paul H. Chung Mar 2023

Trends In Male And Female Urethral Endoscopic Management And Urethroplasty Using The Trinetx Database, Adam M. Ostrovsky, Zachary J. Prebay, Paul H. Chung

Department of Urology Faculty Papers

Background: How quickly providers adapt to new practice guidelines is not well known. The objective of this study was to evaluate temporal trends in the performance of urethral endoscopic management and urethroplasty surrounding the release of the American Urological Association (AUA) Male Urethral Stricture Guidelines in 2017. We also evaluate in parallel trends in female urethral stricture disease, where AUA guidelines are not present. We hypothesized that the ratio of urethroplasty versus urethral endoscopic management in both males and females is increasing and that guidelines do not result in immediate changes in management trends. Methods: Endoscopic management and urethroplasty data …


Emphysematous Pyelonephritis Necessitating Bilateral Radical Nephrectomy: A Case Report And Literature Review., Christine E Wamsley, Arianna Morton, Christopher G Roth, Joseph K Izes, Li Li Mar 2023

Emphysematous Pyelonephritis Necessitating Bilateral Radical Nephrectomy: A Case Report And Literature Review., Christine E Wamsley, Arianna Morton, Christopher G Roth, Joseph K Izes, Li Li

Computational Medicine Center Faculty Papers

Emphysematous pyelonephritis (EPN) is a severe, acute necrotizing infection of the kidney with gas accumulation in the renal parenchyma, collecting ducts, and/or perirenal tissue. We report a case of EPN in a 66 year-old male with uncontrolled diabetes mellitus (DM), urinary tract infection and septic shock necessitating emergent bilateral radical nephrectomy. Morphologically, the kidney parenchyma revealed severe acute bacterial pyelonephritis with extensive abscesses, gas cysts, necrosis and foci of infarctions. The uninvolved background cortex parenchyma exhibited diabetic nephropathy (DN), Class IIB. Post-operatively, the patient remained dialysis-dependent with multiple re-admissions for recurrent multi-drug resistant


A Trinetx Registry Analysis Of The Need For Second Procedures Following Index Anterior And Posterior Urethroplasty, Zachary J. Prebay, Adam M. Ostrovsky, Matthew Buck, Paul H. Chung Mar 2023

A Trinetx Registry Analysis Of The Need For Second Procedures Following Index Anterior And Posterior Urethroplasty, Zachary J. Prebay, Adam M. Ostrovsky, Matthew Buck, Paul H. Chung

Department of Urology Faculty Papers

Background: We queried a global database to understand re-intervention rates following urethroplasty with the goal of evaluating whether they align with previously published data. Methods: Using the TriNetX database and Common Procedural Terminology (CPT) and International Classification of Diseases-10 (ICD) codes, we identified adult male patients with urethral stricture disease (ICD N35) who underwent one-stage anterior (CPT 53410) or posterior urethroplasty (CPT 53415), with or without (substitution urethroplasty) a tissue flap (CPT 15740) or buccal graft (CPT 15240 or 15241). We set urethroplasty as the index event and used descriptive statistics to report the incidence of secondary procedures (using CPT …


Testing For Homologous Recombination Repair Or Homologous Recombination Deficiency For Poly (Adp-Ribose) Polymerase Inhibitors: A Current Perspective, Thomas J Herzog, Ignace Vergote, Leonard G Gomella, Tsveta Milenkova, Tim French, Raffi Tonikian, Christian Poehlein, Maha Hussain Jan 2023

Testing For Homologous Recombination Repair Or Homologous Recombination Deficiency For Poly (Adp-Ribose) Polymerase Inhibitors: A Current Perspective, Thomas J Herzog, Ignace Vergote, Leonard G Gomella, Tsveta Milenkova, Tim French, Raffi Tonikian, Christian Poehlein, Maha Hussain

Department of Urology Faculty Papers

Poly (ADP-ribose) polymerase inhibitors (PARPis) have demonstrated clinical activity in patients with BRCA1 and/or BRCA2 mutated breast, ovarian, prostate, and pancreatic cancers. Notably, BRCA mutations are associated with defects in the homologous recombination repair (HRR) pathway. This homologous recombination deficiency (HRD) phenotype can also be observed as genomic instability in tumour cells. Accordingly, PARPi sensitivity has been observed in various tumours with HRD, independent of BRCA mutations. Currently, four PARPis are approved by regulatory agencies for the treatment of cancer across multiple tumour types. Most indications are specific to tumours with a confirmed BRCA mutation, mutations in other HRR-related genes, …


Patient Factors Impacting Perioperative Outcomes For T1b-T2 Localized Renal Cell Carcinoma May Guide Decision For Partial Versus Radical Nephrectomy, Yash B Shah, Rishabh K Simhal, Kerith Wang, Hanan Goldberg, Costas D. Lallas, Thenappan Chandrasekar Dec 2022

Patient Factors Impacting Perioperative Outcomes For T1b-T2 Localized Renal Cell Carcinoma May Guide Decision For Partial Versus Radical Nephrectomy, Yash B Shah, Rishabh K Simhal, Kerith Wang, Hanan Goldberg, Costas D. Lallas, Thenappan Chandrasekar

Department of Urology Faculty Papers

There remains debate surrounding partial (PN) versus radical nephrectomy (RN) for T1b-T2 renal cell carcinoma (RCC). PN offers nephron-sparing benefits but involves increased perioperative complications. RN putatively maximizes oncologic benefit with complex tumors. We analyzed newly available nephrectomy-specific NSQIP data to elucidate predictors of perioperative outcomes in localized T1b-T2 RCC. We identified 2094 patients undergoing nephrectomy between 2019-2020. Captured variables include surgical procedure and approach, staging, comorbidities, prophylaxis, peri-operative complications, reoperations, and readmissions. 816 patients received PN while 1278 received RN. Reoperation rates were comparable; however, PN patients more commonly experienced 30-day readmissions (7.0% vs. 4.7%, p = 0.026), bleeds …


Presentation And Predictors Of Metastatic Testicular Cancer: A Contemporary Population-Based Analysis, Yash Shah, Hanan Goldberg, Thenappan Chandrasekar Oct 2022

Presentation And Predictors Of Metastatic Testicular Cancer: A Contemporary Population-Based Analysis, Yash Shah, Hanan Goldberg, Thenappan Chandrasekar

Student Papers, Posters & Projects

Introduction

  • Testicular cancer (TC) is the most common solid malignancy in males aged 14-44, with incidence rising globally, although there are few established risk factors besides cryptorchidism.
  • While 70% of men present with localized TC, 18% have regional spread and 12% have metastases. Moreover, one-third of patients diagnosed with Stage I TC actually have occult metastases.


Genitourinary And Sexual Symptoms And Treatments In Transfeminine Individuals: A Qualitative Exploration Of Patients' Needs, Paul Chung, Vishal Swaminathan, Sabina Spigner, Joon Yau Leong, Jessica Bulafka, Rosemary Frasso Sep 2022

Genitourinary And Sexual Symptoms And Treatments In Transfeminine Individuals: A Qualitative Exploration Of Patients' Needs, Paul Chung, Vishal Swaminathan, Sabina Spigner, Joon Yau Leong, Jessica Bulafka, Rosemary Frasso

Department of Urology Faculty Papers

Introduction: Medical providers may not be familiar with the genitourinary and sexual symptoms of transgender and non-binary (TGNB) individuals. This lack of familiarity may hinder a provider's ability to address these issues as patients may hesitate to report symptoms due to fear of stigma, misgendering, and being treated disrespectfully.

Aim: To describe the array of genitourinary and sexual symptoms in transfeminine individuals.

Methods: Upon institutional review board approval, researchers used semi-structured interviews with 25 transfeminine individuals assigned male at birth to explore urinary and sexual symptoms on a sample of convenience. Participants were recruited and interviews were conducted until saturation …


Steap1-4 (Six-Transmembrane Epithelial Antigen Of The Prostate 1-4) And Their Clinical Implications For Prostate Cancer, Michael Xu, Latese Evans, Candice L Bizzaro, Fabio Quaglia, Cecilia E Verrillo, Li Li, Julia Stieglmaier, M J Schiewer, Lucia R Languino, William Kevin Kelly Aug 2022

Steap1-4 (Six-Transmembrane Epithelial Antigen Of The Prostate 1-4) And Their Clinical Implications For Prostate Cancer, Michael Xu, Latese Evans, Candice L Bizzaro, Fabio Quaglia, Cecilia E Verrillo, Li Li, Julia Stieglmaier, M J Schiewer, Lucia R Languino, William Kevin Kelly

Department of Urology Faculty Papers

Six-Transmembrane Epithelial Antigen of the Prostate 1-4 (STEAP1-4) compose a family of metalloproteinases involved in iron and copper homeostasis and other cellular processes. Thus far, five homologs are known: STEAP1, STEAP1B, STEAP2, STEAP3, and STEAP4. In prostate cancer, STEAP1, STEAP2, and STEAP4 are overexpressed, while STEAP3 expression is downregulated. Although the metalloreductase activities of STEAP1-4 are well documented, their other biological functions are not. Furthermore, the properties and expression levels of STEAP heterotrimers, homotrimers, heterodimers, and homodimers are not well understood. Nevertheless, studies over the last few decades have provided sufficient impetus to investigate STEAP1-4 as potential biomarkers and therapeutic …


A Scoping Review Of Penile Implant Biofilms-What Do We Know And What Remains Unknown?, Joon Yau Leong, Courtney E Capella, Maria J D'Amico, Selin Isguven, Caroline Purtill, Priscilla Machado, Lauren J Delaney, Gerard D Henry, Noreen J Hickok, Flemming Forsberg, Paul H Chung Aug 2022

A Scoping Review Of Penile Implant Biofilms-What Do We Know And What Remains Unknown?, Joon Yau Leong, Courtney E Capella, Maria J D'Amico, Selin Isguven, Caroline Purtill, Priscilla Machado, Lauren J Delaney, Gerard D Henry, Noreen J Hickok, Flemming Forsberg, Paul H Chung

Department of Urology Faculty Papers

Background: Penile prosthesis (PP) is a gold standard for treatment of erectile dysfunction given its reliability and efficacy. Infection remains the most feared complication of prosthetic surgery, which usually results in device removal, and places a significant economic burden on the healthcare system. While biofilms have shown to support the persistence of microorganisms, the degree by which this matrix is truly pathogenic remains unknown given its high prevalence even in asymptomatic patients. We aim to review and summarize the current literature pertaining to biofilm formation in the setting of PP surgeries in clinically infected and non-infected cases.

Methods: Searches were …


Dna-Pkcs: A Targetable Protumorigenic Protein Kinase., Emanuela Dylgjeri, Karen E Knudsen Feb 2022

Dna-Pkcs: A Targetable Protumorigenic Protein Kinase., Emanuela Dylgjeri, Karen E Knudsen

Department of Cancer Biology Faculty Papers

DNA-dependent protein kinase catalytic subunit (DNA-PKcs) is a pleiotropic protein kinase that plays critical roles in cellular processes fundamental to cancer. DNA-PKcs expression and activity are frequently deregulated in multiple hematologic and solid tumors and have been tightly linked to poor outcome. Given the potentially influential role of DNA-PKcs in cancer development and progression, therapeutic targeting of this kinase is being tested in preclinical and clinical settings. This review summarizes the latest advances in the field, providing a comprehensive discussion of DNA-PKcs functions in cancer and an update on the clinical assessment of DNA-PK inhibitors in cancer therapy.


Microorganism Profiles Of Penile Prosthesis Removed For Infection, Erosion, And Mechanical Malfunction Based On Next-Generation Sequencing., Paul H Chung, Joon Yau Leong, Caleb D Phillips, Gerard D Henry Feb 2022

Microorganism Profiles Of Penile Prosthesis Removed For Infection, Erosion, And Mechanical Malfunction Based On Next-Generation Sequencing., Paul H Chung, Joon Yau Leong, Caleb D Phillips, Gerard D Henry

Department of Urology Faculty Papers

BACKGROUND: Next-generation sequencing (NGS) is an emerging technology that may allow for more sensitive and sophisticated microbial testing of the microbiota of penile prostheses (PP).

AIM: To describe the microorganism profiles of PP explanted for infection, erosion, and mechanical malfunction using NGS.

METHODS: All patients who underwent PP removal by two physicians at two institutions were identified. Differences in alpha diversity (ie, number of species detected, species diversity across samples) and microbiome compositional profiles (Bray-Curtis community dissimilarities) across samples were assessed using ANOVA and PERMANOVA, respectively.

OUTCOMES: Number of species detected, species diversity across samples, and microbiome compositional profiles.

RESULTS: …


Case Report: Bilateral Emphysematous Pyelonephritis With Pneumatosis Intestinalis, Maria D'Amico, Joseph Izes, Akhil Das Jan 2022

Case Report: Bilateral Emphysematous Pyelonephritis With Pneumatosis Intestinalis, Maria D'Amico, Joseph Izes, Akhil Das

Department of Urology Faculty Papers

Emphysematous pyelonephritis is a severe and rare gas producing infection in the renal parenchyma or collecting system. Diabetes mellitus is an established risk factor. Treatment options include antibiotics, minimally invasive management such as percutaneous drainage, or nephrectomy. This case report describes a 40-year-old female with newly diagnosed diabetes and cirrhosis who presented with left sided emphysematous pyelonephritis. After initial management with intravenous antibiotics and drainage of the collecting system, this patient's clinical condition worsened, and subsequent repeat imaging revealed bilateral emphysematous pyelonephritis as well as pneumatosis intestinalis.


Gaps In Public Awareness About Brca And Genetic Testing In Prostate Cancer: Social Media Landscape Analysis, Stacy Loeb, Philip Massey, Amy Leader, Sameer Thakker, Emily Falge, Sabina Taneja, Nataliya Byrne, Meredith Rose, Matthew Joy, Dawn Walter, Matthew S Katz, Risa L Wong, Preethi Selvan, Scott W Keith, Veda N. Giri Sep 2021

Gaps In Public Awareness About Brca And Genetic Testing In Prostate Cancer: Social Media Landscape Analysis, Stacy Loeb, Philip Massey, Amy Leader, Sameer Thakker, Emily Falge, Sabina Taneja, Nataliya Byrne, Meredith Rose, Matthew Joy, Dawn Walter, Matthew S Katz, Risa L Wong, Preethi Selvan, Scott W Keith, Veda N. Giri

Department of Medical Oncology Faculty Papers

BACKGROUND: Genetic testing, particularly for BRCA1/2, is increasingly important in prostate cancer (PCa) care, with impact on PCa management and hereditary cancer risk. However, the extent of public awareness and online discourse on social media is unknown, and presents opportunities to identify gaps and enhance population awareness and uptake of advances in PCa precision medicine.

OBJECTIVE: The objective of this study was to characterize activity and engagement across multiple social media platforms (Twitter, Facebook, and YouTube) regarding BRCA and genetic testing for PCa compared with breast cancer, which has a long history of public awareness, advocacy, and prominent social media …


Gaps In Public Awareness About Brca And Genetic Testing In Prostate Cancer: Social Media Landscape Analysis., Stacy Loeb, Philip Massey, Amy E. Leader, Sameer Thakker, Emily Falge, Sabina Taneja, Nataliya Byrne, Meredith Rose, Matthew Joy, Dawn Walter, Matthew S. Katz, Risa L. Wong, Preethi Selvan, Scott W. Keith, Veda N. Giri Sep 2021

Gaps In Public Awareness About Brca And Genetic Testing In Prostate Cancer: Social Media Landscape Analysis., Stacy Loeb, Philip Massey, Amy E. Leader, Sameer Thakker, Emily Falge, Sabina Taneja, Nataliya Byrne, Meredith Rose, Matthew Joy, Dawn Walter, Matthew S. Katz, Risa L. Wong, Preethi Selvan, Scott W. Keith, Veda N. Giri

Department of Medical Oncology Faculty Papers

BACKGROUND: Genetic testing, particularly for BRCA1/2, is increasingly important in prostate cancer (PCa) care, with impact on PCa management and hereditary cancer risk. However, the extent of public awareness and online discourse on social media is unknown, and presents opportunities to identify gaps and enhance population awareness and uptake of advances in PCa precision medicine.

OBJECTIVE: The objective of this study was to characterize activity and engagement across multiple social media platforms (Twitter, Facebook, and YouTube) regarding BRCA and genetic testing for PCa compared with breast cancer, which has a long history of public awareness, advocacy, and prominent social media …


Gross Hematuria: An Unusual Presenting Symptom Of Systemic Wild-Type Transthyretinamyloidosis., Sage A. Vincent, Daniel Christensen, Perry R. Weiner Aug 2021

Gross Hematuria: An Unusual Presenting Symptom Of Systemic Wild-Type Transthyretinamyloidosis., Sage A. Vincent, Daniel Christensen, Perry R. Weiner

Department of Urology Faculty Papers

Amyloidosis of the urinary bladder is a rare cause of gross hematuria. In patients with systemic amyloidosis, identification is nearly always related to cardiac complaints; urologic presenting symptoms are extremely uncommon. We present a 77-year-old male patient with painless gross hematuria ultimately found to be secondary to systemic wild-type transthyretin amyloidosis. He underwent transurethral resection of the bladder lesion and was initiated on transthyretin stabilizing medication. In the 6 months since starting treatment, the patient has had no further episodes of gross hematuria, but will require cystoscopic surveillance for evidence of recurrence or concomittment urothelial carcinoma.


Addressing Catheter Associated Uti In The Neuro Icu, Aria Mahtabfar, Md, Giuliana Labella, Msn, Caitlin Harley, Msn, Omar Shah, Md, Mba May 2021

Addressing Catheter Associated Uti In The Neuro Icu, Aria Mahtabfar, Md, Giuliana Labella, Msn, Caitlin Harley, Msn, Omar Shah, Md, Mba

House Staff Quality Improvement and Patient Safety Conference (2020-)

Increasing systemic pressures have forced clinicians to identify and address a variety of metrics to provide better “quality” care. Catheter associated UTIs (CAUTI) are a common health careassociated infection in the Neuro ICU and are associated with increased LOS and overall mortality.

Aims for Improvement: Improving the incidence of CAUTI at the Gibbon and JHN ICUs on an annual basis after incremental interventions.


Collaborative Review: Factors Influencing Treatment Decisions For Patients With A Localized Solid Renal Mass., Thenappan Chandrasekar, Stephen A. Boorjian, Umberto Capitanio, Boris Gershman, Maria Carmen Mir, Alexander Kutikov Feb 2021

Collaborative Review: Factors Influencing Treatment Decisions For Patients With A Localized Solid Renal Mass., Thenappan Chandrasekar, Stephen A. Boorjian, Umberto Capitanio, Boris Gershman, Maria Carmen Mir, Alexander Kutikov

Department of Urology Faculty Papers

CONTEXT: With the addition of active surveillance and thermal ablation (TA) to the urologist's established repertoire of partial (PN) and radical nephrectomy (RN) as first-line management options for localized renal cell carcinoma (RCC), appropriate treatment decision-making has become increasingly nuanced.

OBJECTIVE: To critically review the treatment options for localized, nonrecurrent RCC; to highlight the patient, renal function, tumor, and provider factors that influence treatment decisions; and to provide a framework to conceptualize that decision-making process.

EVIDENCE ACQUISITION: A collaborative critical review of the medical literature was conducted.

EVIDENCE SYNTHESIS: We identify three key decision points when managing localized RCC: (1) …


Factors Influencing General Surgeons To Involve Urologists In Bladder Trauma Management, Joseph Schultz, Paul Chung, Md Feb 2021

Factors Influencing General Surgeons To Involve Urologists In Bladder Trauma Management, Joseph Schultz, Paul Chung, Md

Phase 1

Introduction: Bladder trauma injuries, which are graded by severity, often require immediate care and surgical management by General Surgeons (GS) or Urologists. This study seeks to understand the inconsistencies that exist in collaboration between GS and Urologists in bladder trauma management. We hypothesize that the decision for GS to involve Urologists in bladder trauma management is a multifactorial decision with severity of bladder trauma being the primary determining factor as opposed to other factors like provider experience or hospital setting.

Methods: This cross-sectional descriptive study surveyed GS to determine how likely they were to involve Urologists in bladder trauma …


Urosim, Robert Abishek, Bryan Nardone, Jasmine Wang, Christopher Wetzel, Rob Pugliese Feb 2021

Urosim, Robert Abishek, Bryan Nardone, Jasmine Wang, Christopher Wetzel, Rob Pugliese

Phase 1

Designing a more cost-efficient method for ureteroscopy simulation training that involves 3D printing an anatomically-accurate model of a patient’s renal pelvicalyceal system.