{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,14]],"date-time":"2026-07-14T00:06:43Z","timestamp":1783987603060,"version":"3.55.0"},"reference-count":49,"publisher":"American Society of Clinical Oncology (ASCO)","issue":"3","content-domain":{"domain":["ascopubs.org"],"crossmark-restriction":true},"short-container-title":["JCO Precis Oncol"],"published-print":{"date-parts":[[2026,3]]},"abstract":"<jats:sec>\n                    <jats:title>PURPOSE<\/jats:title>\n                    <jats:p>Cholangiocarcinoma (CCA) has rising incidence and mortality rates. Liver transplantation (LT) offers good outcomes. Tumor molecular profiling may inform peri-LT treatment.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>MATERIALS AND METHODS<\/jats:title>\n                    <jats:p>Patients with CCA who underwent LT at a single center between 2014 and 2021 were identified retrospectively. Next-generation sequencing (277 genes) was performed on 28 CCAs from 18 patients, including five perihilar and 24 intrahepatic tumors.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>RESULTS<\/jats:title>\n                    <jats:p>\n                      Mutations were reported in 45 genes, most frequently\n                      <jats:italic toggle=\"yes\">IDH1<\/jats:italic>\n                      (5 patients),\n                      <jats:italic toggle=\"yes\">BAP1<\/jats:italic>\n                      (5), and\n                      <jats:italic toggle=\"yes\">TP53<\/jats:italic>\n                      (4).\n                      <jats:italic toggle=\"yes\">BAP1<\/jats:italic>\n                      was associated with neoadjuvant treatment response. Altered genes were organized into five pathways, namely: kinase-RAS (11 patients), TP53 (9), epigenetic (8), SWI-SNF (7) and RB-cell cycle (4). Both TP53 and RB-cell cycle pathway alterations were prognostic. Tumors were clustered into three groups, named here as cell cycle (seven patients), genomic instability (6), and cell survival (5). The latter had no post-transplant deaths. In 18 serially sequenced tumors from eight patients, mutational heterogeneity over time was quantified by Jaccard Index. This reflected both external selection pressures by systemic therapies and intrinsic tumor biology, being the lowest in cell survival tumors. Pathway- and subtype-level changes were rare.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>CONCLUSION<\/jats:title>\n                    <jats:p>In this LT cohort, CCA molecular profiling informed prognosis and treatment response. Heterogeneity may depend on early tumorigenesis disruptions, potentially explaining outcome differences.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1200\/po-25-00691","type":"journal-article","created":{"date-parts":[[2026,3,2]],"date-time":"2026-03-02T20:59:30Z","timestamp":1772485170000},"update-policy":"https:\/\/doi.org\/10.1200\/crossmark","source":"Crossref","is-referenced-by-count":1,"title":["Molecular Profiling of Cholangiocarcinoma Predicts Outcomes Post-Liver Transplantation"],"prefix":"10.1200","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7596-3771","authenticated-orcid":true,"given":"Ashton A.","family":"Connor","sequence":"first","affiliation":[{"name":"Department of Surgery, Houston Methodist Hospital, Houston, TX"},{"name":"JC Walter Jr Transplant Center, Houston Methodist Hospital, Houston, TX"},{"name":"Department of Surgery, Weill Cornell Medical College, New York, 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