Shifa Khaja Saleem, Sarah Decker, Sandra Kissel, Marcus Bauer, Dmitry Chernyakov, Daniela Bräuer-Hartmann, Konrad Aumann, Claudia Wickenhauser, Marco Herling, Oleksandra Skorobohatko, Nimitha Mathew, Cornelius Schmidt, Claudius Klein, Marie Follo, Christine Dierks
{"title":"JNK1 抑制剂可靶向远端 B 细胞受体信号转导,克服 CLL 中 BTK 抑制剂的耐药性。","authors":"Shifa Khaja Saleem, Sarah Decker, Sandra Kissel, Marcus Bauer, Dmitry Chernyakov, Daniela Bräuer-Hartmann, Konrad Aumann, Claudia Wickenhauser, Marco Herling, Oleksandra Skorobohatko, Nimitha Mathew, Cornelius Schmidt, Claudius Klein, Marie Follo, Christine Dierks","doi":"10.1084/jem.20230681","DOIUrl":null,"url":null,"abstract":"<p><p>Inhibition of the proximal B cell receptor (BCR) signaling pathway by BTK inhibitors is highly effective in the treatment of CLL, but drug resistance or intolerance occurs. Here, we investigated c-Jun N-terminal protein kinase 1 (JNK1) as an alternative drug target in the distal BCR pathway. JNK1 was preferentially overexpressed and activated in poor prognostic CLL with unmutated IGHV. Proximal BCR inhibition (BTK, PI3K, or SYK inhibitors) or SYK knockdown efficiently dephosphorylated JNK1, identifying JNK1 as a critical BCR downstream kinase in CLL. JNK1 inhibition induced apoptosis in primary CLL cells, resulting in the downregulation of BCL2, MCL1, and c-JUN. JNK1 inhibition in patient-derived CLL xenografted mice and Eµ-TCL1-tg mice prevented CLL progression, reduced splenic infiltration, and restored T cell function and normal hematopoiesis. JNK1 inhibitors even remained effective in ibrutinib refractory CLL. In conclusion, our study revealed JNK1 as a promising drug target in CLL downstream of the BCR, overcoming ibrutinib resistance, blocking the protective microenvironment, and improving CLL-specific immunosuppressive mechanisms.</p>","PeriodicalId":15760,"journal":{"name":"Journal of Experimental Medicine","volume":"222 1","pages":""},"PeriodicalIF":12.6000,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11586660/pdf/","citationCount":"0","resultStr":"{\"title\":\"JNK1 inhibitors target distal B cell receptor signaling and overcome BTK-inhibitor resistance in CLL.\",\"authors\":\"Shifa Khaja Saleem, Sarah Decker, Sandra Kissel, Marcus Bauer, Dmitry Chernyakov, Daniela Bräuer-Hartmann, Konrad Aumann, Claudia Wickenhauser, Marco Herling, Oleksandra Skorobohatko, Nimitha Mathew, Cornelius Schmidt, Claudius Klein, Marie Follo, Christine Dierks\",\"doi\":\"10.1084/jem.20230681\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Inhibition of the proximal B cell receptor (BCR) signaling pathway by BTK inhibitors is highly effective in the treatment of CLL, but drug resistance or intolerance occurs. Here, we investigated c-Jun N-terminal protein kinase 1 (JNK1) as an alternative drug target in the distal BCR pathway. JNK1 was preferentially overexpressed and activated in poor prognostic CLL with unmutated IGHV. Proximal BCR inhibition (BTK, PI3K, or SYK inhibitors) or SYK knockdown efficiently dephosphorylated JNK1, identifying JNK1 as a critical BCR downstream kinase in CLL. JNK1 inhibition induced apoptosis in primary CLL cells, resulting in the downregulation of BCL2, MCL1, and c-JUN. JNK1 inhibition in patient-derived CLL xenografted mice and Eµ-TCL1-tg mice prevented CLL progression, reduced splenic infiltration, and restored T cell function and normal hematopoiesis. JNK1 inhibitors even remained effective in ibrutinib refractory CLL. In conclusion, our study revealed JNK1 as a promising drug target in CLL downstream of the BCR, overcoming ibrutinib resistance, blocking the protective microenvironment, and improving CLL-specific immunosuppressive mechanisms.</p>\",\"PeriodicalId\":15760,\"journal\":{\"name\":\"Journal of Experimental Medicine\",\"volume\":\"222 1\",\"pages\":\"\"},\"PeriodicalIF\":12.6000,\"publicationDate\":\"2025-01-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11586660/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Experimental Medicine\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.1084/jem.20230681\",\"RegionNum\":1,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2024/11/21 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q1\",\"JCRName\":\"IMMUNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Experimental Medicine","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1084/jem.20230681","RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/11/21 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"IMMUNOLOGY","Score":null,"Total":0}
JNK1 inhibitors target distal B cell receptor signaling and overcome BTK-inhibitor resistance in CLL.
Inhibition of the proximal B cell receptor (BCR) signaling pathway by BTK inhibitors is highly effective in the treatment of CLL, but drug resistance or intolerance occurs. Here, we investigated c-Jun N-terminal protein kinase 1 (JNK1) as an alternative drug target in the distal BCR pathway. JNK1 was preferentially overexpressed and activated in poor prognostic CLL with unmutated IGHV. Proximal BCR inhibition (BTK, PI3K, or SYK inhibitors) or SYK knockdown efficiently dephosphorylated JNK1, identifying JNK1 as a critical BCR downstream kinase in CLL. JNK1 inhibition induced apoptosis in primary CLL cells, resulting in the downregulation of BCL2, MCL1, and c-JUN. JNK1 inhibition in patient-derived CLL xenografted mice and Eµ-TCL1-tg mice prevented CLL progression, reduced splenic infiltration, and restored T cell function and normal hematopoiesis. JNK1 inhibitors even remained effective in ibrutinib refractory CLL. In conclusion, our study revealed JNK1 as a promising drug target in CLL downstream of the BCR, overcoming ibrutinib resistance, blocking the protective microenvironment, and improving CLL-specific immunosuppressive mechanisms.
期刊介绍:
Since its establishment in 1896, the Journal of Experimental Medicine (JEM) has steadfastly pursued the publication of enduring and exceptional studies in medical biology. In an era where numerous publishing groups are introducing specialized journals, we recognize the importance of offering a distinguished platform for studies that seamlessly integrate various disciplines within the pathogenesis field.
Our unique editorial system, driven by a commitment to exceptional author service, involves two collaborative groups of editors: professional editors with robust scientific backgrounds and full-time practicing scientists. Each paper undergoes evaluation by at least one editor from both groups before external review. Weekly editorial meetings facilitate comprehensive discussions on papers, incorporating external referee comments, and ensure swift decisions without unnecessary demands for extensive revisions.
Encompassing human studies and diverse in vivo experimental models of human disease, our focus within medical biology spans genetics, inflammation, immunity, infectious disease, cancer, vascular biology, metabolic disorders, neuroscience, and stem cell biology. We eagerly welcome reports ranging from atomic-level analyses to clinical interventions that unveil new mechanistic insights.