Allyl Isothiocyanate Maintains DHA-Containing Glycerophospholipids and Ameliorates the Cognitive Function Decline in OVX Mice

Akika Nagata; Shiori Oishi; Nanako Kirishita; Keita Onoda; Takuma Kobayashi; Yuko Terada; Akira Minami; Nanami Senoo; Yasukiyo Yoshioka; Kunitoshi Uchida; Keisuke Ito; Shinji Miura; Noriyuki Miyoshi

doi:10.1021/acsomega.3c06622

Allyl Isothiocyanate Maintains DHA-Containing Glycerophospholipids and Ameliorates the Cognitive Function Decline in OVX Mice

ACS Omega. 2023 Nov 1;8(45):43118-43129. doi: 10.1021/acsomega.3c06622. eCollection 2023 Nov 14.

Affiliations

¹ Graduate School of Integrated Pharmaceutical and Nutritional Sciences, University of Shizuoka, Shizuoka 4228526, Japan.
² Department of Biochemistry, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka 4228526, Japan.

Abstract

Low-temperature-induced fatty acid desaturation is highly conserved in animals, plants, and bacteria. Allyl isothiocyanate (AITC) is an agonist of the transient receptor potential ankyrin 1 (TRPA1), which is activated by various chemophysiological stimuli, including low temperature. However, whether AITC induces fatty acid desaturation remains unknown. We showed here that AITC increased levels of glycerophospholipids (GP) esterified with unsaturated fatty acids, especially docosahexaenoic acid (DHA) in TRPA1-expressing HEK cells. Additionally, GP-DHA including phosphatidylcholine (18:0/22:6) and phosphatidylethanolamine (18:0/22:6) was increased in the brain and liver of AITC-administered mice. Moreover, intragastrical injection of AITC in ovariectomized (OVX) female C57BL/6J mice dose-dependently shortened the Δlatency time determined by the Morris water maze test, indicating AITC ameliorated the cognitive function decline in these mice. Thus, the oral administration of AITC maintains GP-DHA in the liver and brain, proving to be a potential strategy for preventing cognitive decline.