ArticleCancer communications (London, England)2025
Reciprocal tumor-platelet interaction through the EPHB1-EFNB1 axis in the liver metastatic niche promotes metastatic tumor outgrowth in pancreatic ductal adenocarcinoma.
Article in Cancer communications (London, England), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed.
- Transcriptional activation of EPHB1 by SOX2 promotes epithelial-mesenchymal transition and metastasis in esophageal squamous cell carcinoma.Clinical & experimental metastasis · 2026Article
- Organ cross-talk: molecular mechanisms, biological functions, and therapeutic interventions for diseases.Signal transduction and targeted therapy · 2026Review
- Emerging hallmarks and the rise of complexities and heterogeneity of tumor.Biochemistry and biophysics reports · 2025Review
- Reciprocal tumor-platelet interaction through the EPHB1-EFNB1 axis in the liver metastatic niche promotes metastatic tumor outgrowth in pancreatic ductal adenocarcinoma.Cancer communications (London, England) · 2025Article
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Abstract
backgroundThe interaction between the metastatic microenvironment and tumor cells plays an important role in metastatic tumor formation. Platelets play pivotal roles in hematogenous cancer metastasis through tumor cell-platelet interaction in blood vessels. Pancreatic ductal adenocarcinoma (PDAC) is a highly lethal malignancy distinguished by its notable tendency to metastasize to the liver. However, the role of platelet in the liver metastatic niche of PDAC remains elusive. This study aimed to elucidate the role of platelets and their interactions with tumor cells in the liver metastatic niche of PDAC.
methodsAn mCherry niche-labeling system was established to identify cells in the liver metastatic niche of PDAC. Platelet depletion in a liver metastasis mouse model was used to observe the function of platelets in PDAC liver metastasis. Gain-of-function and loss-of-function of erythropoietin-producing hepatocellular receptor B1 (Ephb1), tumor cell-platelet adhesion, recombinant protein, and tryptophan hydroxylase 1 (Tph1)-knockout mice were used to study the crosstalk between platelets and tumor cells in the liver metastatic niche.
resultsThe mCherry metastatic niche-labeling system revealed the presence of activated platelets in the liver metastatic niche of PDAC patients. Platelet depletion decreased liver metastatic tumor growth in mice. Mechanistically, tumor cell-expressed EPHB1 and platelet-expressed Ephrin B1 (EFNB1) mediated contact-dependent activation of platelets via reverse signaling-mediated AKT signaling activation, and in turn, activated platelet-released 5-HT, further enhancing tumor growth.
conclusionWe revealed the crosstalk between platelets and tumor cells in the liver metastatic niche of PDAC. Reciprocal tumor-platelet interaction mediated by the EPHB1-EFNB1 reverse signaling promoted metastatic PDAC outgrowth via 5-HT in the liver. Interfering the tumor-platelet interaction by targeting the EPHB1-EFNB1 axis may represent a promising therapeutic intervention for PDAC liver metastasis.
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