ArticleFrontiers in cell and developmental biology2022
Establishment of a novel method to assess MEK1/2 inhibition in PBMCs for clinical drug development.
Article in Frontiers in cell and developmental biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The Raf/MEK/ERK signaling pathway plays a key role in regulating cellular proliferation, differentiation, apoptosis, cytokine production, and immune responses. However, it is also involved in diseases such as cancer, and numerous viruses rely on an active Raf/MEK/ERK pathway for propagation. This pathway, and particularly MEK1/2, are therefore promising therapeutic targets. Assessment of target engagement is crucial to determine pharmacodynamics or the efficacy of a MEK1/2 inhibitor. In the field of infectious diseases, this is usually first determined in clinical trials with healthy volunteers. One method to detect MEK1/2 inhibitor target engagement is to assess the degree of ERK1/2 phosphorylation, as ERK1/2 is the only known substrate of MEK1/2. As healthy subjects, however, only feature a low baseline MEK1/2 activation and therefore low ERK1/2 phosphorylation in most tissues, assessing target engagement is challenging, and robust methods are urgently needed. We hence developed a method using PBMCs isolated from whole blood of healthy blood donors, followed by
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