"We found that rab-3p::xbp-1s expression increased neither lifespan nor ER stress resistance in a unc-13(e450) mutant background, strongly suggesting that communication between neurons and intestine through release of SCVs is essential for increased lifespan and stress resistance downstream of neuronal xbp-1s expression (Figures 7C and 7D). However, it should be noted that unc-13(e450) itself increases lifespan, complicating the interpretation of longevity data, and that as the mutation was not specific to neurons, loss of unc-13 activity in other tissues may have contributed to this loss of longevity and stress resistance."
"We found that rab-3p::xbp-1s expression increased neither lifespan nor ER stress resistance in a unc-13(e450) mutant background, strongly suggesting that communication between neurons and intestine through release of SCVs is essential for increased lifespan and stress resistance downstream of neuronal xbp-1s expression (Figures 7C and 7D). However, it should be noted that unc-13(e450) itself increases lifespan, complicating the interpretation of longevity data, and that as the mutation was not specific to neurons, loss of unc-13 activity in other tissues may have contributed to this loss of longevity and stress resistance."
"When crossed with unc-13(e450), cell-nonautonomous UPR-ER activation in the intestine of rab-3p::xbp-1s; hsp-4p::GFP animals was reduced, but autonomous activation of the UPR-ER in the nervous system remained intact (Figures 7B and S6E)."
"unc-13(e450) animals could activate the UPR-ER in the intestine upon expression of gly-19::xbp-1s, indicating that the ability to activate the UPR-ER cell autonomously in an unc-13(e450) mutant background was not lost (Figures S6F and S6G)."