A Potential Role of Cyclic Dependent Kinase 1 (CDK1) in Late Stage of Retinal Degeneration

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Abstract

Cyclin dependent kinase 1 (CDK1) has long been known to drive the cell cycle and to regulate the division and differentiation of cells. Apart from its role in mitosis regulation, it also exerts multiple functions as a protein kinase, including engagement in cell death, possibly via a cell cycle-independent mechanism. The latter is suggested, since CDK1 re-expression can be found in non-dividing and terminally differentiated neurons in several neurodegeneration models. However, the details of if and how CDK1 might be involved in the neurodegenerative condition, retinitis pigmentosa (RP), which displays progressive vision loss, are unclear. In the present study, we investigated CDK1 in degenerating RP photoreceptors of the rd1 RP model, including whether there is a link between this kinase and the cGMP-PKG system, which is regarded as a disease driver. With experiments performed using either in vivo retinal tissue or in vitro material, via organotypic retinal explants, our results showed that CDK1 appears in the photoreceptors at a late stage of their degeneration, and in such a position, it may be associated with the cGMP-PKG network.
Original languageEnglish
Article number2143
JournalCells
Volume11
Issue number14
DOIs
Publication statusPublished - 2022 Jul 7

Subject classification (UKÄ)

  • Ophthalmology

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