Research Summary

Dr. Sima Porten is a specialist in cancers of the genital and urinary organs. She is a member of the urologic oncology team at the UCSF Helen Diller Family Comprehensive Cancer Center. Her clinical interests include the diagnosis and treatment of genitourinary cancer, particularly bladder cancer, upper tract urothelial cancer, kidney cancer and high-risk prostate cancer.

Porten's research focuses mainly on the diagnosis and management of urothelial carcinoma, a cancer involving parts of the kidney, bladder and ureter (the tube connecting each kidney to the bladder). In studying the biologic or genetic basis of urothelial carcinoma, she hopes to develop new tests and treatments to bring personalized medicine to patients with bladder cancer.

Porten received her undergraduate, medical and master of public health degrees from Northwestern University. During medical school, she was inducted into the Alpha Omega Alpha Honor Medical Society and also completed a fellowship through the Howard Hughes Medical Institute–National Institutes of Health Research Scholars Program. She then completed her urology residency training at UCSF, where she received the Julius R. Krevans Award for Clinical Excellence. During her training in urologic oncology at the University of Texas MD Anderson Cancer Center, she was awarded a John Quale Travel Fellowship for her research in bladder cancer.

Porten is an active member of the American Urological Association, American Society of Clinical Oncology, Society of Women in Urology and Society of Urologic Oncology.


  • Northwestern University, College of Arts and Sciences, B.A., 2001, Classics
  • Northwestern University, Feinberg School of Medicine, M.D., 2006, Medicine
  • Northwestern University, School of Public Health, M.P.H., 2006, Public Health
  • University of California, San Francisco, Intern, 2007, General Surgery
  • University of California, San Francisco, Resident, 2008, General Surgery
  • University of California, San Francisco, Resident, 2011, Urology
  • University of California, San Francisco, Chief Resident, 2012, Urology
  • U.T. MD Anderson Cancer Center, Fellow, 2014, Urol. Oncology

Honors & Awards

  • 2003
    Howard Hughes Medical Institute Research Scholar, National Institute of Health
  • 2005
    Julius Conn Award for Outstanding Performance in the Surgery Clerkship
  • 2005
    George Dennis Award (Phi Rho Sigma) for Achievement in Clinical Years
  • 2006
    Alpha Omega Alpha Honor Society, Gamma Chapter
  • 2007
    Julius R. Krevans Award for Clinical Excellence, San Francisco General Hospital
  • 2012
    The John Quale Travel Fellowship Award, Bladder Cancer Advocacy Network
  • 2015
    The Joseph McCarthy Essay Contest Award, American Urological Association, Western Section
  • 2016
    William R. Smart Distinguished Teaching Award, UCSF Department of Urology
  • 2017
    Best Reviewer Award, Journal of Urology
  • 2017
    Faculty Learning and Development Fund Award Recipient, UCSF, School of Medicine
  • 2018
    New Investigator Scholarship-Leadership Award, ALLIANCE Foundation
  • 2019
    Muriel Steele Society Honor- Influential and Inspiring Women in Surgery, Murielle Steel Society UCSF

Selected Publications

  1. Li KD, Chu CE, Patel M, Meng MV, Morgan TM, Porten SP. Cxbladder Monitor testing to reduce cystoscopy frequency in patients with bladder cancer. Urol Oncol. 2023 Mar 01.  View on PubMed
  2. Alsyouf M, Ladi-Seyedian SS, Konety B, Pohar K, Holzbeierlein JM, Kates M, Willard B, Taylor JM, Liao JC, Kaimakliotis HZ, Porten SP, Steinberg GD, Tyson MD, Lotan Y, Daneshmand S, Blue Light Cystoscopy with Cysview Registry Group. Is a restaging TURBT necessary in high-risk NMIBC if the initial TURBT was performed with blue light? Urol Oncol. 2022 Nov 23.  View on PubMed
  3. Lobo N, Afferi L, Moschini M, Mostafid H, Porten S, Psutka SP, Gupta S, Smith AB, Williams SB, Lotan Y. Epidemiology, Screening, and Prevention of Bladder Cancer. Eur Urol Oncol. 2022 Dec; 5(6):628-639.  View on PubMed
  4. Chang K, Porten SP. Sex-specific Augmentation of Treatment Responses in Bladder Cancer. Eur Urol Open Sci. 2022 Dec; 46:43-44.  View on PubMed
  5. Szymaniak J, Porten SP. Which Biomarkers are Useful in the Management of Muscle-invasive Bladder Cancer in 2022? Eur Urol Focus. 2022 Jul; 8(4):901-903.  View on PubMed
  6. Wallace A, Porten SP, Lo AA, Oreper D, Lounsbury N, Havnar C, Pechuan-Jorge X, Zill OA, Meng MV. Origins and Timing of Emerging Lesions in Advanced Renal Cell Carcinoma. Mol Cancer Res. 2022 06 03; 20(6):909-922.  View on PubMed
  7. Stoia-Davis J, Colwell JC, Emodi K, Fellows J, Mahoney M, McDade B, Porten SP, Raskin ER, Norman HS, Kelly MT, Sims T. Survey Results on Use of a Convex Pouching System in the Postoperative Period. J Wound Ostomy Continence Nurs. 2022 May-Jun 01; 49(3):247-250.  View on PubMed
  8. Colwell JC, Stoia Davis J, Emodi K, Fellows J, Mahoney M, McDade B, Porten S, Raskin E, Sims T, Norman H, Kelly MT, Gray M. Use of a Convex Pouching System in the Postoperative Period: A National Consensus. J Wound Ostomy Continence Nurs. 2022 May-Jun 01; 49(3):240-246.  View on PubMed
  9. Mujal AM, Combes AJ, Rao AA, Binnewies M, Samad B, Tsui J, Boissonnas A, Pollack JL, Argüello RJ, Meng MV, Porten SP, Ruhland MK, Barry KC, Chan V, Krummel MF. Holistic Characterization of Tumor Monocyte-to-Macrophage Differentiation Integrates Distinct Immune Phenotypes in Kidney Cancer. Cancer Immunol Res. 2022 04 01; 10(4):403-419.  View on PubMed
  10. Robbins R, Cole R, Ejikeme C, Orstad SL, Porten S, Salter CA, Sanchez Nolasco T, Vieira D, Loeb S. Systematic review of sleep and sleep disorders among prostate cancer patients and caregivers: a call to action for using validated sleep assessments during prostate cancer care. Sleep Med. 2022 06; 94:38-53.  View on PubMed
  11. Natesan D, Zhang L, Martell HJ, Jindal T, Devine P, Stohr B, Espinosa-Mendez C, Grenert J, Van Ziffle J, Joseph N, Umetsu S, Onodera C, Turski M, Chan E, Desai A, Aggarwal R, Wong A, Porten S, Chou J, Friedlander T, Fong L, Small EJ, Sweet-Cordero A, Koshkin VS. APOBEC Mutational Signature and Tumor Mutational Burden as Predictors of Clinical Outcomes and Treatment Response in Patients With Advanced Urothelial Cancer. Front Oncol. 2022; 12:816706.  View on PubMed
  12. Chou J, Trepka K, Sj?str?m M, Egusa EA, Chu CE, Zhu J, Chan E, Gibb EA, Badura ML, Contreras-Sanz A, Stohr BA, Meng MV, Pruthi RS, Lotan Y, Black PC, Porten SP, Koshkin VS, Friedlander TW, Feng FY. TROP2 Expression Across Molecular Subtypes of Urothelial Carcinoma and Enfortumab Vedotin-resistant Cells. Eur Urol Oncol. 2022 12; 5(6):714-718.  View on PubMed
  13. Ahmadi H, Ladi-Seyedian SS, Konety B, Pohar K, Holzbeierlein JM, Kates M, Willard B, Taylor JM, Liao JC, Kaimakliotis HZ, Porten SP, Steinberg GD, Tyson MD, Lotan Y, Daneshmand S, Blue Light Cystoscopy with Cysview Registry Group. Role of blue-light cystoscopy in detecting invasive bladder tumours: data from a multi-institutional registry. BJU Int. 2022 07; 130(1):62-67.  View on PubMed
  14. Chappidi MR, Yang H, Meng MV, Bivalacqua TJ, Daneshmand S, Holzbeierlein JM, Kaimakliotis HZ, Konety B, Liao JC, Pohar K, Steinberg GD, Taylor JM, Tyson MD, Willard B, Lotan Y, Porten SP, Kates M. Utility of Blue Light Cystoscopy for Post-bacillus Calmette-Gu�rin Bladder Cancer Recurrence Detection: Implications for Clinical Trial Recruitment and Study Comparisons. J Urol. 2022 Mar; 207(3):534-540.  View on PubMed
  15. Tariq A, McCart Reed AE, Morton A, Porten S, Vela I, Williams ED, Yaxley JW, Black PC, Roberts MJ. Urothelial Carcinoma and Prostate-specific Membrane Antigen: Cellular, Imaging, and Prognostic Implications. Eur Urol Focus. 2022 09; 8(5):1256-1269.  View on PubMed
  16. Raman JD, Kavalieris L, Konety B, Porten S, Daneshmand S, Lotan Y, Loo R. The Diagnostic Performance of Cxbladder Resolve, Alone and in Combination with Other Cxbladder Tests, in the Identification and Priority Evaluation of Patients at Risk for Urothelial Carcinoma. J Urol. 2021 12; 206(6):1380-1389.  View on PubMed
  17. Gore JL, Porten SP, Montgomery JS, Hamilton RJ, Meng MV, Sexton WJ, Psutka SP. Applicant perceptions of virtual interviews for society of urologic oncology fellowships during the COVID-19 pandemic. Urol Oncol. 2021 Jul 08.  View on PubMed
  18. Chappidi MR, Welty C, Choi W, Meng MV, Porten SP. Evaluation of the Cancer of Bladder Risk Assessment (COBRA) Score in the Cancer Genome Atlas (TCGA) Bladder Cancer Cohort. Urology. 2021 10; 156:104-109.  View on PubMed
  19. Chu CE, Sj?str?m M, Egusa EA, Gibb EA, Badura ML, Zhu J, Koshkin VS, Stohr BA, Meng MV, Pruthi RS, Friedlander TW, Lotan Y, Black PC, Porten SP, Feng FY, Chou J. Heterogeneity in NECTIN4 Expression Across Molecular Subtypes of Urothelial Cancer Mediates Sensitivity to Enfortumab Vedotin. Clin Cancer Res. 2021 09 15; 27(18):5123-5130.  View on PubMed
  20. Matulewicz RS, Ravvaz K, Weissert JA, Porten S, Steinberg GD, Blue Light Cystoscopy with Cysview Registry Group. Association of smoking status and recurrence of non-muscle invasive bladder cancer among patients managed with blue light cystoscopy. Urol Oncol. 2021 12; 39(12):833.e19-833.e26.  View on PubMed

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