Article ; Online: Sprouty1 is a broad mediator of cellular senescence.
2024 Volume 15, Issue 4, Page(s) 296
Abstract: Genes of the Sprouty family (Spry1-4) restrain signaling by certain receptor tyrosine kinases. Consequently, these genes participate in several developmental processes and function as tumor suppressors in adult life. Despite these important roles, the ... ...
Abstract | Genes of the Sprouty family (Spry1-4) restrain signaling by certain receptor tyrosine kinases. Consequently, these genes participate in several developmental processes and function as tumor suppressors in adult life. Despite these important roles, the biology of this family of genes still remains obscure. Here we show that Sprouty proteins are general mediators of cellular senescence. Induction of cellular senescence by several triggers in vitro correlates with upregulation of Sprouty protein levels. More importantly, overexpression of Sprouty genes is sufficient to cause premature cellular senescence, via a conserved N-terminal tyrosine (Tyrosine 53 of Sprouty1). Accordingly, fibroblasts from knockin animals lacking that tyrosine escape replicative senescence. In vivo, heterozygous knockin mice display delayed induction of cellular senescence during cutaneous wound healing and upon chemotherapy-induced cellular senescence. Unlike other functions of this family of genes, induction of cellular senescence appears to be independent of activation of the ERK1/2 pathway. Instead, we show that Sprouty proteins induce cellular senescence upstream of the p38 pathway in these in vitro and in vivo paradigms. |
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MeSH term(s) | Cellular Senescence ; Animals ; Mice ; Membrane Proteins/metabolism ; Membrane Proteins/genetics ; Humans ; Fibroblasts/metabolism ; Adaptor Proteins, Signal Transducing/metabolism ; Adaptor Proteins, Signal Transducing/genetics ; Phosphoproteins/metabolism ; Phosphoproteins/genetics ; p38 Mitogen-Activated Protein Kinases/metabolism ; Intracellular Signaling Peptides and Proteins/metabolism ; Intracellular Signaling Peptides and Proteins/genetics ; MAP Kinase Signaling System ; Wound Healing |
Chemical Substances | Membrane Proteins ; Spry1 protein, mouse ; Adaptor Proteins, Signal Transducing ; Phosphoproteins ; p38 Mitogen-Activated Protein Kinases (EC 2.7.11.24) ; Intracellular Signaling Peptides and Proteins ; SPRY1 protein, human |
Language | English |
Publishing date | 2024-04-26 |
Publishing country | England |
Document type | Journal Article ; Research Support, Non-U.S. Gov't |
ZDB-ID | 2541626-1 |
ISSN | 2041-4889 ; 2041-4889 |
ISSN (online) | 2041-4889 |
ISSN | 2041-4889 |
DOI | 10.1038/s41419-024-06689-4 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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