Research Summary

Dr. Andrew Bollen specializes in neuropathology (diagnosis of nervous system disease by examining tissue, fluid or other samples). His expertise includes central nervous system tumors and infections as well as muscle and nerve pathology.

Bollen earned his medical degree from the University of California, San Diego. At UCSF, he completed a residency in anatomic pathology and a fellowship in neuropathology, and subsequently joined the faculty. In addition, he has a doctor of veterinary medicine degree.

Education

Harvard College, Cambridge, MA, A.B., 1975, Biology
University of California, Davis School of Veterinary Medicine, Davis, CA, D.V.M., 1980, Veterinary Medicine
University of California, San Diego School of Medicine, San Diego, CA, M.D., 1985, Medicine

Honors & Awards

  • 1980
    Phi Zeta Honor Society, UC Davis School of Veterinary Medicine
  • 1985
    A. Baird Hastings Society, UC SanDiego School of Medicine
  • 2000-2009
    Member Neuropathology Test Committee
  • 2001-present
    Castle Connolly Guide, America’s Top Doctors
  • 2005-present
    Castle Connolly Guide, America’s Top Doctors for Cancert

Selected Publications

  1. Lucas CG, Al-Adli NN, Young JS, Gupta R, Morshed RA, Wu J, Ravindranathan A, Shai A, Oberheim Bush NA, Taylor JW, de Groot J, Villanueva-Meyer JE, Pekmezci M, Perry A, Bollen AW, Theodosopoulos PV, Aghi MK, Chang EF, Hervey-Jumper SL, Raleigh DR, Molinaro AM, Costello JF, Diaz AA, Clarke JL, Butowski NA, Phillips JJ, Chang SM, Berger MS, Solomon DA. Longitudinal multimodal profiling of IDH-wildtype glioblastoma reveals the molecular evolution and cellular phenotypes underlying prognostically different treatment responses. Neuro Oncol. 2025 Jan 12; 27(1):89-105.  View on PubMed
  2. Terry M, Nguyen MP, Tang V, Guney E, Bharani KL, Dahiya S, Choutka O, Borys E, Reis G, Blevins L, Aghi MK, Kunwar S, DeGroot J, Raleigh DR, Pekmezci M, Bollen AW, Cha S, Joseph NM, Perry A. High-Grade Progression, Sarcomatous Transformation, and/or Metastasis of Pituitary Neuroendocrine Neoplasms (PitNENs): The UCSF Experience. Endocr Pathol. 2024 Dec; 35(4):338-348.  View on PubMed
  3. Hadad S, Gupta R, Oberheim Bush NA, Taylor JW, Villanueva-Meyer JE, Young JS, Wu J, Ravindranathan A, Zhang Y, Warrier G, McCoy L, Shai A, Pekmezci M, Perry A, Bollen AW, Phillips JJ, Braunstein SE, Raleigh DR, Theodosopoulos P, Aghi MK, Chang EF, Hervey-Jumper SL, Costello JF, de Groot J, Butowski NA, Clarke JL, Chang SM, Berger MS, Molinaro AM, Solomon DA. "De novo replication repair deficient glioblastoma, IDH-wildtype" is a distinct glioblastoma subtype in adults that may benefit from immune checkpoint blockade. Acta Neuropathol. 2023 12 11; 147(1):3.  View on PubMed
  4. Williams EA, Ravindranathan A, Gupta R, Stevers NO, Suwala AK, Hong C, Kim S, Yuan JB, Wu J, Barreto J, Lucas CG, Chan E, Pekmezci M, LeBoit PE, Mully T, Perry A, Bollen A, Van Ziffle J, Devine WP, Reddy AT, Gupta N, Basnet KM, Macaulay RJB, Malafronte P, Lee H, Yong WH, Williams KJ, Juratli TA, Mata DA, Huang RSP, Hiemenz MC, Pavlick DC, Frampton GM, Janovitz T, Ross JS, Chang SM, Berger MS, Jacques L, Song JS, Costello JF, Solomon DA. Novel SOX10 indel mutations drive schwannomas through impaired transactivation of myelination gene programs. Neuro Oncol. 2023 12 08; 25(12):2221-2236.  View on PubMed
  5. Terry M, Gupta R, Ravindranathan A, Wu J, Chan E, Bollen AW, Chang SM, Berger MS, Jacques L, Solomon DA. Somatic mosaic SOX10 indel mutations underlie a form of segmental schwannomatosis. Acta Neuropathol. 2023 12; 146(6):857-860.  View on PubMed
  6. Guney E, Lucas CG, Singh K, Pekmezci M, Fernandez-Pol S, Mirchia K, Toland A, Vogel H, Bannykh S, Schafernak KT, Alexandrescu S, Mobley BC, Powell S, Davidson CJ, Neltner J, Boué DR, Hattab E, Ferris SP, Ohgami RS, Rubenstein JL, Bollen AW, Tihan T, Perry A, Solomon DA, Wen KW. Molecular profiling identifies at least 3 distinct types of posttransplant lymphoproliferative disorder involving the CNS. Blood Adv. 2023 07 11; 7(13):3307-3311.  View on PubMed
  7. Spottiswoode N, Pet D, Kim A, Gruenberg K, Shah M, Ramachandran A, Laurie MT, Zia M, Fouassier C, Boutros CL, Lu R, Zhang Y, Servellita V, Bollen A, Chiu CY, Wilson MR, Valdivia L, DeRisi JL. Successful Treatment of Balamuthia mandrillaris Granulomatous Amebic Encephalitis with Nitroxoline. Emerg Infect Dis. 2023 01; 29(1):197-201.  View on PubMed
  8. Nielsen CM, Zhang X, Raygor K, Wang S, Bollen AW, Wang RA. Endothelial Rbpj deletion normalizes Notch4-induced brain arteriovenous malformation in mice. J Exp Med. 2023 02 06; 220(2).  View on PubMed
  9. Zhang Y, Lucas CG, Young JS, Morshed RA, McCoy L, Oberheim Bush NA, Taylor JW, Daras M, Butowski NA, Villanueva-Meyer JE, Cha S, Wrensch M, Wiencke JK, Lee JC, Pekmezci M, Phillips JJ, Perry A, Bollen AW, Aghi MK, Theodosopoulos P, Chang EF, Hervey-Jumper SL, Berger MS, Clarke JL, Chang SM, Molinaro AM, Solomon DA. Prospective genomically guided identification of "early/evolving" and "undersampled" IDH-wildtype glioblastoma leads to improved clinical outcomes. Neuro Oncol. 2022 10 03; 24(10):1749-1762.  View on PubMed
  10. Lucas CG, Sloan EA, Gupta R, Wu J, Pratt D, Vasudevan HN, Ravindranathan A, Barreto J, Williams EA, Shai A, Whipple NS, Bruggers CS, Maher O, Nabors B, Rodriguez M, Samuel D, Brown M, Carmichael J, Lu R, Mirchia K, Sullivan DV, Pekmezci M, Tihan T, Bollen AW, Perry A, Banerjee A, Mueller S, Gupta N, Hervey-Jumper SL, Oberheim Bush NA, Daras M, Taylor JW, Butowski NA, de Groot J, Clarke JL, Raleigh DR, Costello JF, Phillips JJ, Reddy AT, Chang SM, Berger MS, Solomon DA. Multiplatform molecular analyses refine classification of gliomas arising in patients with neurofibromatosis type 1. Acta Neuropathol. 2022 10; 144(4):747-765.  View on PubMed
  11. Lucas CG, Davidson CJ, Alashari M, Putnam AR, Whipple NS, Bruggers CS, Mendez JS, Cheshier SH, Walker JB, Ramani B, Cadwell CR, Sullivan DV, Lu R, Mirchia K, Van Ziffle J, Devine P, Goldschmidt E, Hervey-Jumper SL, Gupta N, Oberheim Bush NA, Raleigh DR, Bollen A, Tihan T, Pekmezci M, Solomon DA, Phillips JJ, Perry A. Targeted Next-Generation Sequencing Reveals Divergent Clonal Evolution in Components of Composite Pleomorphic Xanthoastrocytoma-Ganglioglioma. J Neuropathol Exp Neurol. 2022 07 19; 81(8):650-657.  View on PubMed
  12. Kumar A, Mohamed E, Tong S, Chen K, Mukherjee J, Lim Y, Wong CM, Boosalis Z, Shai A, Pieper RO, Gupta N, Perry A, Bollen AW, Molinaro AM, Solomon DA, Shieh JTC, Phillips JJ. CXCL14 Promotes a Robust Brain Tumor-Associated Immune Response in Glioma. Clin Cancer Res. 2022 07 01; 28(13):2898-2910.  View on PubMed
  13. Chen VS, Bollen AW, Marco-Salazar P, Higgins RJ, Sisó S. Case Report: Neuroblastoma-Like Schwannoma in a Domestic Short-Haired Cat. Front Vet Sci. 2022; 9:905302.  View on PubMed
  14. Güney E, Lucas CG, Qi Z, Yu J, Zhang R, Ohgami RS, Rubenstein JL, Boué DR, Schafernak K, Wertheim GB, Dahiya S, Giulino-Roth L, Attarbaschi A, Barth MJ, Kothari S, Abla O, Cohen AL, Mendez JS, Bollen A, Perry A, Tihan T, Pekmezci M, Solomon DA, Wen KW. A genetically distinct pediatric subtype of primary CNS large B-cell lymphoma is associated with favorable clinical outcome. Blood Adv. 2022 05 24; 6(10):3189-3193.  View on PubMed
  15. Sloan EA, Gupta R, Koelsche C, Chiang J, Villanueva-Meyer JE, Alexandrescu S, Eschbacher JM, Wang W, Mafra M, Ud Din N, Carr-Boyd E, Watson M, Punsoni M, Oviedo A, Gilani A, Kleinschmidt-DeMasters BK, Coss DJ, Lopes MB, Reddy A, Mueller S, Cho SJ, Horvai AE, Lee JC, Pekmezci M, Tihan T, Bollen AW, Rodriguez FJ, Ellison DW, Perry A, von Deimling A, Chang SM, Berger MS, Solomon DA. Intracranial mesenchymal tumors with FET-CREB fusion are composed of at least two epigenetic subgroups distinct from meningioma and extracranial sarcomas. Brain Pathol. 2022 07; 32(4):e13037.  View on PubMed
  16. Li Y, Sloan E, Bollen A, Solomon D, Theodosopoulos P, Cha S. Systemic and Craniospinal Rosai Dorfman Disease with Intraparenchymal, Intramedullary and Leptomeningeal Disease. Int J Hematol Oncol Stem Cell Res. 2021 Oct 01; 15(4):260-264.  View on PubMed
  17. Sloan EA, Chiang J, Villanueva-Meyer JE, Alexandrescu S, Eschbacher JM, Wang W, Mafra M, Ud Din N, Carr-Boyd E, Watson M, Punsoni M, Oviedo A, Gilani A, Kleinschmidt-DeMasters BK, Coss DJ, Lopes MB, Raffel C, Berger MS, Chang SM, Reddy A, Ramani B, Ferris SP, Lee JC, Hofmann JW, Cho SJ, Horvai AE, Pekmezci M, Tihan T, Bollen AW, Rodriguez FJ, Ellison DW, Perry A, Solomon DA. Intracranial mesenchymal tumor with FET-CREB fusion-A unifying diagnosis for the spectrum of intracranial myxoid mesenchymal tumors and angiomatoid fibrous histiocytoma-like neoplasms. Brain Pathol. 2021 07; 31(4):e12918.  View on PubMed
  18. Schulte JD, Buerki RA, Lapointe S, Molinaro AM, Zhang Y, Villanueva-Meyer JE, Perry A, Phillips JJ, Tihan T, Bollen AW, Pekmezci M, Butowski N, Oberheim Bush NA, Taylor JW, Chang SM, Theodosopoulos P, Aghi MK, Hervey-Jumper SL, Berger MS, Solomon DA, Clarke JL. Clinical, radiologic, and genetic characteristics of histone H3 K27M-mutant diffuse midline gliomas in adults. Neurooncol Adv. 2020 Jan-Dec; 2(1):vdaa142.  View on PubMed
  19. Ramani B, Gupta R, Wu J, Barreto J, Bollen AW, Tihan T, Mummaneni PV, Ames C, Clark A, Oberheim Bush NA, Butowski N, Phillips D, King BE, Bator SM, Treynor EC, Zherebitskiy V, Quinn PS, Walker JB, Pekmezci M, Sullivan DV, Hofmann JW, Sloan EA, M Chang S, Berger MS, Solomon DA, Perry A. The immunohistochemical, DNA methylation, and chromosomal copy number profile of cauda equina paraganglioma is distinct from extra-spinal paraganglioma. Acta Neuropathol. 2020 12; 140(6):907-917.  View on PubMed
  20. Lucas CG, Gupta R, Doo P, Lee JC, Cadwell CR, Ramani B, Hofmann JW, Sloan EA, Kleinschmidt-DeMasters BK, Lee HS, Wood MD, Grafe M, Born D, Vogel H, Salamat S, Puccetti D, Scharnhorst D, Samuel D, Cooney T, Cham E, Jin LW, Khatib Z, Maher O, Chamyan G, Brathwaite C, Bannykh S, Mueller S, Kline CN, Banerjee A, Reddy A, Taylor JW, Clarke JL, Oberheim Bush NA, Butowski N, Gupta N, Auguste KI, Sun PP, Roland JL, Raffel C, Aghi MK, Theodosopoulos P, Chang E, Hervey-Jumper S, Phillips JJ, Pekmezci M, Bollen AW, Tihan T, Chang S, Berger MS, Perry A, Solomon DA. Comprehensive analysis of diverse low-grade neuroepithelial tumors with FGFR1 alterations reveals a distinct molecular signature of rosette-forming glioneuronal tumor. Acta Neuropathol Commun. 2020 08 28; 8(1):151.  View on PubMed

Go to UCSF Profiles, powered by CTSI