The Claim
Hyperosmotic stress induced by sorbitol, sucrose, or glucose activates Polo-like kinase 3 (Plk3) in human corneal epithelial cells, resulting in direct phosphorylation of c-Jun at serine residues 63 and 73, which contributes to apoptosis independently of the JNK pathway.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
When human corneal epithelial cells are exposed to high concentrations of sorbitol, sucrose, or glucose, Polo-like kinase 3 becomes activated and directly modifies c-Jun protein at specific sites, triggering cell death through a pathway that does not involve JNK.
See the scientific wording
Hyperosmotic stress induced by sorbitol, sucrose, or glucose activates Polo-like kinase 3 (Plk3) in human corneal epithelial cells, leading to direct phosphorylation of c-Jun at serine residues 63 and 73, which contributes to apoptosis independently of the JNK pathway, suggesting a novel molecular mechanism for corneal epithelial cell death under osmotic stress conditions.
When the fluid around corneal cells becomes too salty, the cells shrink and turn on Plk3, which directly modifies c-Jun at two specific spots. This modified c-Jun turns on genes that kill the cell, and this happens even if the usual cell-death pathway is blocked.
What the research says
1 studyWhen the fluid around eye surface cells gets too salty, it turns on a protein called Plk3, which then flips a switch on another protein (c-Jun) that tells the cell to die — and this happens even if the usual death pathway is turned off.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.