Pierre-Etienne joined the Horowitz laboratory in October 2025 as a visiting researcher as part of his doctoral training. He is currently pursuing a PhD in oncogenesis within Inserm Unit U976 at the Saint-Louis Hospital Research Institute in Paris, under the supervision of Prof. Evanguelos Xylinas.<\/p>\n
He obtained his MD degree in 2019 from Sorbonne University, followed by a transversal specialized training in oncology, and completed a Master of Science at Universit\u00e9 Paris-Saclay in 2023, focusing on the prognostic and predictive value of mismatch repair protein loss in patients with upper tract urothelial carcinoma. From 2024 to 2025, he served as a junior doctor in urology at Bichat\u2013Claude Bernard Hospital, Universit\u00e9 Paris Cit\u00e9, under the chairmanship of Prof. Jean-Fran\u00e7ois Hermieu.<\/p>\n
His translational research focuses on urothelial bladder cancer, with a particular interest in identifying biomarkers of response and resistance in non\u2013muscle-invasive bladder cancer using integrated molecular and immunological approaches. At Mount Sinai, his current research explores dual immunotherapy targeting the HLA-E\/NKG2A and PD-1\/PD-L1 pathways in BCG-unresponsive non\u2013muscle-invasive bladder cancer, biomarkers of response and resistance to gemcitabine\/docetaxel, and the biological determinants of response to enfortumab vedotin\u2013pembrolizumab.<\/p>\n
Fun fact: I try a different burger every week to create a ranking of the best burgers in New York.<\/p>\n","protected":false},"excerpt":{"rendered":"
Pierre-Etienne joined the Horowitz laboratory in October 2025 as a visiting researcher as part of his doctoral training. He is currently pursuing a PhD in oncogenesis within Inserm Unit U976 at the Saint-Louis Hospital Research Institute in Paris, under the supervision of Prof. Evanguelos Xylinas. He obtained his MD degree in 2019 from Sorbonne University, […]<\/p>\n","protected":false},"author":249,"featured_media":0,"parent":27,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-313","page","type-page","status-publish","hentry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/labs.icahn.mssm.edu\/horowitzlab\/wp-json\/wp\/v2\/pages\/313","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/labs.icahn.mssm.edu\/horowitzlab\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/labs.icahn.mssm.edu\/horowitzlab\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/labs.icahn.mssm.edu\/horowitzlab\/wp-json\/wp\/v2\/users\/249"}],"replies":[{"embeddable":true,"href":"https:\/\/labs.icahn.mssm.edu\/horowitzlab\/wp-json\/wp\/v2\/comments?post=313"}],"version-history":[{"count":1,"href":"https:\/\/labs.icahn.mssm.edu\/horowitzlab\/wp-json\/wp\/v2\/pages\/313\/revisions"}],"predecessor-version":[{"id":314,"href":"https:\/\/labs.icahn.mssm.edu\/horowitzlab\/wp-json\/wp\/v2\/pages\/313\/revisions\/314"}],"up":[{"embeddable":true,"href":"https:\/\/labs.icahn.mssm.edu\/horowitzlab\/wp-json\/wp\/v2\/pages\/27"}],"wp:attachment":[{"href":"https:\/\/labs.icahn.mssm.edu\/horowitzlab\/wp-json\/wp\/v2\/media?parent=313"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}