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Kinesin KIF18A is a novel PUM-regulated target promoting mitotic progression and survival of a human male germ cell line.
- Source :
-
Journal of Cell Science . Apr2020, Vol. 133 Issue 7, preceding p1-8. 9p. - Publication Year :
- 2020
-
Abstract
- Regulation of proliferation, apoptosis and cell cycle is crucial for the physiology of germ cells. Their malfunction contributes to infertility and germ cell tumours. The kinesin KIF18A is an important regulator of those processes in animal germ cells. Post-transcriptional regulation of KIF18A has not been extensivelyexplored.Owing to the presence of PUM-binding elements (PBEs), KIF18A mRNA is a potential target of PUM proteins, where PUM refers to Pumilio proteins, RNAbinding proteins that act in post-transcriptional gene regulation. We conducted RNA co-immunoprecipitation combined with RT-qPCR, as well as luciferase reporter assays, by applying an appropriate luciferase construct encoding wild-type KIF18A 3'-UTR, upon PUM overexpression or knockdown in TCam-2 cells, representing human male germ cells. We found that KIF18A is repressed by PUM1 and PUM2. To study how this regulation influences KIF18A function, an MTS proliferation assay, and apoptosis and cell cycle analysis using flow cytometry, was performed upon KIF18A mRNA siRNA knockdown. KIF18A significantly influences proliferation, apoptosis and the cell cycle, with its effects being opposite to PUM effects. Repression by PUM proteins might represent one of mechanisms influencing KIF18A level in controlling proliferation, cell cycle and apoptosis in TCam-2 cells. [ABSTRACT FROM AUTHOR]
- Subjects :
- *KINESIN
*CELL physiology
*MITOSIS
*CELL cycle
*GERM cells
*CELL analysis
*CELL lines
Subjects
Details
- Language :
- English
- ISSN :
- 00219533
- Volume :
- 133
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Journal of Cell Science
- Publication Type :
- Academic Journal
- Accession number :
- 142872931
- Full Text :
- https://doi.org/10.1242/jcs.240986