ArticleInternational journal of hematology2021
A case of JAK2V617F-positive essential thrombocythemia where allele burden was reduced by a PD-1 inhibitor.
Article in International journal of hematology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed, 6 citations in OpenAlex.
- An arginase1- and PD-L1-derived peptide-based vaccine for myeloproliferative neoplasms: A first-in-man clinical trial.Frontiers in immunology · 2023Article
- Essential thrombocythaemia progression to the fibrotic phase is associated with a decrease in JAK2 and PDL1 levels.Annals of hematology · 2022Article
- Different Patterns of Platelet Count Fluctuation in Response to Various Anticancer Chemotherapies among Patient with Bladder Cancer.Case reports in oncologyArticle
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Authors and funding
17 authors at 1 institution in 1 country.
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Abstract
The Janus kinase/signal transducers and activators of transcription signaling pathway induces programmed death ligand-1 (PD-L1) expression. JAK2 mutation at position 617 (JAK2V617) is a frequent driver of myeloproliferative neoplasms (MPN) through PD-L1 expression. Although PD-1 inhibitors should be effective against MPN with JAK2V617F mutation, this has not yet been reported in humans. Thus, we assessed the efficacy of a PD-1 inhibitor in a lung cancer patient with JAK2V617F-positive essential thrombocythemia (ET). A 71-year-old man was diagnosed with ET, and with lung carcinoma 3 years later. After right lobectomy and postoperative chemotherapy, pembrolizumab [a PD-1 inhibitor (200 mg, every 3 weeks)] was initiated for refractory lung carcinoma. Lung cancer progression did not occur for 1.5 years under treatment. Most megakaryocytes were PD-L1-positive, and after pembrolizumab initiation, platelet count remained below 45 × 10
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