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Updated: Oct 25, 2026

An Oncogenic Hepatocyte-Induced Orthotopic Mouse Model of Hepatocellular Cancer Arising in the Setting of Hepatic Inflammation and Fibrosis
Published on: September 12, 2019
OLFM4 promotes intrahepatic cholangiocarcinoma progression through a PKM2-glycolysis-histone lactylation feedback
Shuochen Liu1, Kai Cao1, Changan Chen1
1Department of Hepatobiliary Surgery, The First Affiliated Hospital with Nanjing Medical University; Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences; NHC Key Laboratory of Living Donor Liver Transplantation, Nanjing Medical University, Nanjing, Jiangsu Province, China.
Abstract:
Metabolic reprogramming is increasingly recognized as a key characteristic of intrahepatic cholangiocarcinoma (ICC) initiation and progression. Among these metabolic alterations, glycolysis is central for supporting tumor growth. Elucidating the precise molecular mechanisms of glycolysis in ICC is critical for developing precision therapies. Here, comprehensive integrative analyses revealed that olfactomedin 4 (OLFM4) is upregulated in ICC specimens and is associated with adverse patient outcomes. Mechanistically, OLFM4 promotes ICC progression by recruiting ubiquitin specific peptidase 10 (USP10) to stabilize pyruvate kinase M2 (PKM2). This interaction enhances glycolysis and lactate production, thereby elevating histone lactylation, with a prominent impact on H3K18 lactylation (H3K18la). Consequently, H3K18la positively regulates OLFM4 transcription, establishing a positive glycolysis-histone lactylation feedback loop. Notably, tiliroside, a candidate pharmacological inhibitor of OLFM4, demonstrated antitumor efficacy in ICC. Collectively, these findings support targeting OLFM4 as a promising therapeutic strategy for ICC management.
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