Stress survival and longevity of Caenorhabditis elegans lacking NCS-1.

Autor: Magno, Luiz Alexandre Viana, Pinto, Sofia Helena Dias Borges, Pacheco, Ailla, Rosa, Daniela Valadão Freitas, Gubert, Priscila, Romano-Silva, Marco Aurélio
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Zdroj: Toxicology Research; Dec2024, Vol. 13 Issue 6, p1-5, 5p
Abstrakt: Although dysfunctional Ca2+ signaling can trigger biochemical reactions that lead to cell death, the role of calcium-binding proteins (CBPs) in this process is still a topic of debate. Neuronal calcium sensor 1 (NCS-1) is a CBP that is highly conserved and has been shown to increase cell survival against various types of injuries. As such, we hypothesized that NCS-1 could also be a stress-responsive protein with potential effects on survival and longevity. To explore this possibility, we conducted experiments to examine how Caenorhabditis elegans ncs-1 mutant nematodes fared under three different stress conditions: hyperosmotic, thermal, and chemical oxidant challenges. Our results showed that while the lack of NCS-1 had no effect on survival responses to hyperosmotic and thermal stresses, ncs-1 worms demonstrated remarkable resistance to the oxidant paraquat in a dose-dependent manner. Based on these findings, we conclude that C. elegans may employ adaptive mechanisms in the absence of NCS-1 to survive specific oxidative stress stimuli. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index