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Omics · study · 2026

Casein kinase 1δ/ε inhibition suppresses CLL through cell-intrinsic and microenvironmental mechanisms

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Chronic lymphocytic leukemia (CLL) is a consequence of pathological B cell accumulation in blood and lymphoid organs.

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Due to high refractoriness, CLL is considered incurable which calls for novel therapeutic options. Previously, we showed casein kinase 1δ/ε (CK1δ/ε) inhibition prolonged survival of Eµ-TCL1 mice with CLL-like disease.

Herein, we elucidate mechanisms mediating CK1δ/ε inhibition efficacy in CLL suppression. Using in vivo Eµ-TCL1 adoptive transfer (AT) model, we showed CK1δ/ε inhibition mediated cell cycle slowdown and CLL cell accumulation at S/G2 interface. This observation was validated using multiple CLL cell lines and EdU/Click-iT reaction applied in vivo.

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Furthermore, we showed CK1δ/ε inhibition led to T cell decrease in lymph nodes (LN). Using system mimicking LN microenvironment in vitro, we observed CK1δ/ε inhibition triggered downregulation of nuclear factor κ B (NFκB) pathway that acts downstream of T-cell-mediated CD40L:CD40 stimulus, inducing CLL cell proliferation. Finally, we showed CK1δ/ε inhibition counteracted proliferation of CLL cells from wide range of patients, with lower efficacy only in patients bearing TP53 defects.

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Life Sciences
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Disease 75%
Provenance · 1 source records, 8 field assertions
SourceKeyLast seenRaw
NCBI GEOGSE30472215 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · NCBI GEOconnector:ncbi_geo@1.0.0
concepts[disease].local:disease:diseaseenrichment · NCBI GEOkeyword-concept-rules@1.0.0title+description (75%)
concepts[field].local:field:life-sciencesmapping · NCBI GEOconnector:ncbi_geo@1.0.0
concepts[method].geo_series_type:expression-profiling-by-high-throughput-sequencingsource · NCBI GEOconnector:ncbi_geo@1.0.0/gdstype
concepts[organism].NCBITaxon:10090source · NCBI GEOconnector:ncbi_geo@1.0.0/taxon
descriptionsource · NCBI GEOconnector:ncbi_geo@1.0.0/summary
publication_datesource · NCBI GEOconnector:ncbi_geo@1.0.0
titlesource · NCBI GEOconnector:ncbi_geo@1.0.0/title