ArticleCell death & disease2025
PKIB facilitates bladder cancer proliferation and metastasis through mediation of HSP27 phosphorylation by PKA.
Article in Cell death & disease, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
2 citing papers in PubMed.
- Ac-SDKP modulates apoptosis via HSP27 and the FAS/FASL and mitochondrial axes.Animal models and experimental medicine · 2026Article
- cAMP promotes acute lysosome biogenesis through TFEB nuclear import-export dynamics.bioRxiv : the preprint server for biology · 2025Article
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Authors and funding
14 authors.
Funding
Abstract
Cyclic AMP-dependent protein kinase A (PKA) is recognized for its pivotal involvement in various cancer types, with Protein Kinase Inhibitor Beta (PKIB) serving as an endogenous inhibitor that curtails PKA activity. Despite the documented escalation of PKIB expression in several malignancies, a comprehensive understanding of its precise mechanistic implications in human cancers remains elusive. This investigation is centered on bladder cancer (BLCA), unveiling an augmented expression of PKIB concomitant with heightened BLCA cell proliferation, migration, and invasion in vitro and augmented tumorigenic potential in an in vivo model. Mechanistically, PKIB disrupts PKA kinase activity, thereby resulting in diminished phosphorylation of the substrate target protein HSP27 at serine 15, 78, and 82. Additionally, the transcription factor MYCN exhibits an affinity for the PKIB promoter, leading to its enhanced expression in the context of BLCA. These findings reveal the oncogenic proclivity of PKIB and introduce a novel signalling pathway in BLCA, providing valuable insights into potential therapeutic targets for precise intervention.
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