PMID- 36868277 OWN - NLM STAT- MEDLINE DCOM- 20230425 LR - 20230425 IS - 1879-1026 (Electronic) IS - 0048-9697 (Linking) VI - 875 DP - 2023 Jun 1 TI - Sulfate-modified nanosized polystyrene impairs memory by inhibiting ionotropic glutamate receptors and the cAMP-response element binding protein (CREB) pathway in Caenorhabditis elegans. PG - 162404 LID - S0048-9697(23)01020-3 [pii] LID - 10.1016/j.scitotenv.2023.162404 [doi] AB - Nanoplastic contamination is an emerging environmental concern worldwide. In particular, sulfate anionic surfactants often appear along with nanosized plastic particles in personal care products, suggesting that sulfate-modified nanosized polystyrene (S-NP) may occur, remain, and spread into the environment. However, whether S-NP adversely affects learning and memory is unknown. In this study, we used a positive butanone training protocol to evaluate the effects of S-NP exposure on short-term associative memory (STAM) and long-term associative memory (LTAM) in Caenorhabditis elegans. We observed that long-term S-NP exposure impairs both STAM and LTAM in C. elegans. We also observed that mutations in the glr-1, nmr-1, acy-1, unc-43, and crh-1 genes eliminated the STAM and LTAM impairment induced by S-NP, and the mRNA levels of these genes were also decreased upon S-NP exposure. These genes encode ionotropic glutamate receptors (iGluRs), cyclic adenosine monophosphate (cAMP)/Ca(2+) signaling proteins, and cAMP-response element binding protein (CREB)/CRH-1 signaling proteins. Moreover, S-NP exposure inhibited the expression of the CREB-dependent LTAM genes nid-1, ptr-15, and unc-86. Our findings provide new insights into long-term S-NP exposure and the impairment of STAM and LTAM, which involve the highly conserved iGluRs and CRH-1/CREB signaling pathways. CI - Copyright (c) 2023 Elsevier B.V. All rights reserved. FAU - Lin, Ting-An AU - Lin TA AD - Department of Bioenvironmental Systems Engineering, National Taiwan University, Taipei 106, Taiwan. FAU - How, Chun Ming AU - How CM AD - Department of Bioenvironmental Systems Engineering, National Taiwan University, Taipei 106, Taiwan. FAU - Yen, Pei-Ling AU - Yen PL AD - Department of Bioenvironmental Systems Engineering, National Taiwan University, Taipei 106, Taiwan. FAU - Liao, Vivian Hsiu-Chuan AU - Liao VH AD - Department of Bioenvironmental Systems Engineering, National Taiwan University, Taipei 106, Taiwan. Electronic address: vivianliao@ntu.edu.tw. LA - eng PT - Journal Article DEP - 20230301 PL - Netherlands TA - Sci Total Environ JT - The Science of the total environment JID - 0330500 RN - 0 (Polystyrenes) RN - 0 (Receptors, Ionotropic Glutamate) RN - 0 (Caenorhabditis elegans Proteins) RN - 0 (Sulfates) RN - 0 (CRH-1 protein, C elegans) RN - 0 (Transcription Factors) SB - IM MH - Animals MH - *Caenorhabditis elegans/physiology MH - Polystyrenes/toxicity/metabolism MH - Receptors, Ionotropic Glutamate/genetics/metabolism MH - *Caenorhabditis elegans Proteins/genetics/metabolism MH - Sulfates/metabolism MH - Response Elements MH - Transcription Factors/metabolism OTO - NOTNLM OT - Caenorhabditis elegans OT - Learning and memory OT - Nanoplastics OT - Signaling pathways COIS- Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2023/03/04 06:00 MHDA- 2023/04/25 10:20 CRDT- 2023/03/03 19:26 PHST- 2022/11/15 00:00 [received] PHST- 2023/02/16 00:00 [revised] PHST- 2023/02/18 00:00 [accepted] PHST- 2023/04/25 10:20 [medline] PHST- 2023/03/04 06:00 [pubmed] PHST- 2023/03/03 19:26 [entrez] AID - S0048-9697(23)01020-3 [pii] AID - 10.1016/j.scitotenv.2023.162404 [doi] PST - ppublish SO - Sci Total Environ. 2023 Jun 1;875:162404. doi: 10.1016/j.scitotenv.2023.162404. Epub 2023 Mar 1.