Article ; Online: STK11 loss leads to YAP1-mediated transcriptional activation in human KRAS-driven lung adenocarcinoma cell lines.
2023 Volume 31, Issue 1, Page(s) 1–8
Abstract: Serine Threonine Kinase 11 (STK11) loss of function (LoF) correlates with anti-PD-1 therapy resistance in patients with KRAS-driven lung adenocarcinoma (LUAD). The molecular mechanisms governing this observation remain unclear and represent a critical ... ...
Abstract | Serine Threonine Kinase 11 (STK11) loss of function (LoF) correlates with anti-PD-1 therapy resistance in patients with KRAS-driven lung adenocarcinoma (LUAD). The molecular mechanisms governing this observation remain unclear and represent a critical outstanding question in the field of lung oncology. As an initial approach to understand this phenomenon, we knocked-out (KO) STK11 in multiple KRAS-driven, STK11-competent human LUAD cell lines and performed whole transcriptome analyses to identify STK11-loss-dependent differential gene expression. Subsequent pathway enrichment studies highlighted activation of the HIPPO/YAP1 signaling axis, along with the induction of numerous tumor-intrinsic cytokines. To validate that YAP1-mediated transcriptional activation occurs in response to STK11 loss, we pursued YAP1 perturbation as a strategy to restore an STK11-competent gene expression profile in STK11-KO LUAD cell lines. Together, our data link STK11 loss with YAP1-mediated transcriptional activation, including the upregulation of immune-evasion promoting cytokines IL-6, CXCL8 and CXCL2. Further, our results raise the intriguing possibility that YAP1 antagonism may represent a therapeutic approach to counter anti-PD-1 therapy resistance in STK11-null, KRAS-driven LUADs by modulating tumor-intrinsic gene expression to promote a "hot" tumor immune microenvironment. |
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MeSH term(s) | Humans ; Lung Neoplasms/pathology ; Proto-Oncogene Proteins p21(ras)/genetics ; Proto-Oncogene Proteins p21(ras)/metabolism ; Protein Serine-Threonine Kinases/genetics ; Protein Serine-Threonine Kinases/metabolism ; Transcriptional Activation ; AMP-Activated Protein Kinase Kinases ; Mutation ; Adenocarcinoma of Lung/genetics ; Adenocarcinoma of Lung/drug therapy ; Cell Line, Tumor ; Cytokines/metabolism ; Tumor Microenvironment |
Chemical Substances | Proto-Oncogene Proteins p21(ras) (EC 3.6.5.2) ; Protein Serine-Threonine Kinases (EC 2.7.11.1) ; AMP-Activated Protein Kinase Kinases (EC 2.7.11.3) ; Cytokines ; KRAS protein, human ; STK11 protein, human (EC 2.7.11.1) |
Language | English |
Publishing date | 2023-11-15 |
Publishing country | England |
Document type | Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, N.I.H., Extramural |
ZDB-ID | 1212513-1 |
ISSN | 1476-5500 ; 0929-1903 |
ISSN (online) | 1476-5500 |
ISSN | 0929-1903 |
DOI | 10.1038/s41417-023-00687-y |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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