PMID- 35199998 OWN - NLM STAT- MEDLINE DCOM- 20220418 LR - 20220418 IS - 1936-086X (Electronic) IS - 1936-0851 (Linking) VI - 16 IP - 3 DP - 2022 Mar 22 TI - Carrier-Free Trehalose-Based Nanomotors Targeting Macrophages in Inflammatory Plaque for Treatment of Atherosclerosis. PG - 3808-3820 LID - 10.1021/acsnano.1c08391 [doi] AB - Inducing autophagy of macrophages to improve abnormal lipid metabolism is an important way to treat atherosclerosis (AS). Yet, the current application of the mammalian target of rapamycin (mTOR)-dependent autophagy inducers is limited by the side effects and lack of targeting and low biological availability. Herein, a kind of nitric oxide (NO)-driven carrier-free nanomotor based on the reaction between trehalose (Tr, one of the mTOR-independent autophagy inducers), L-arginine (Arg), and phosphatidylserine (PS) is reported. The developed nanomotors use NO as the driving force, which is generated from the reaction between Arg and excessive reactive oxygen species (ROS) and inducible nitric oxide synthase (iNOS) specifically presenting in the AS microenvironment. The high expression of ROS and iNOS in the AS site can be used as chemoattractants to induce chemotaxis behavior of the nanomotors to achieve the first-step targeting an AS plaque. Subsequently, the "eat me" signal sent by PS is exploited to precisely target to the macrophages in the AS plaque, realizing the plaque-macrophage-targeted effect by this step-by-step strategy. In vitro and in vivo results confirm that the introduction of the concept of carrier-free nanomotors has greatly improved the biological availability of trehalose (the dose can be reduced from 2.5 g kg(-1) in previous reports to 0.01 g kg(-1) in this work). Particularly, consumed ROS and the production of NO during the targeting process also play positive roles, in which the former regulates the M2 polarization of macrophages and the latter promotes the reconstruction of an endothelial barrier, which contributes to the multilink treatment of AS. FAU - Wu, Ziyu AU - Wu Z AD - National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China. AD - Department of Vascular Surgery, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210008, China. FAU - Zhou, Min AU - Zhou M AD - Department of Vascular Surgery, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210008, China. FAU - Tang, Xueting AU - Tang X AD - National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China. FAU - Zeng, Jiaqi AU - Zeng J AD - Department of Vascular Surgery, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210008, China. FAU - Li, Yazhou AU - Li Y AD - Department of Vascular Surgery, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210008, China. FAU - Sun, Yuning AU - Sun Y AD - Pediatric Endocrinology and Genetic, Xinhua Hospital, Shanghai Institute for Pediatric Research, Shanghai Jiao Tong University, School of Medicine, Shanghai 200092, China. FAU - Huang, Jia AU - Huang J AD - Department of Cardiology, Zhongshan Hospital, Fudan University. Shanghai Institute of Cardiovascular Diseases, Shanghai 200032, China. FAU - Chen, Lin AU - Chen L AD - National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China. FAU - Wan, Mimi AU - Wan M AUID- ORCID: 0000-0002-8686-7961 AD - National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China. FAU - Mao, Chun AU - Mao C AUID- ORCID: 0000-0003-4085-3414 AD - National and Local Joint Engineering Research Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20220224 PL - United States TA - ACS Nano JT - ACS nano JID - 101313589 RN - 0 (Reactive Oxygen Species) RN - 31C4KY9ESH (Nitric Oxide) RN - 94ZLA3W45F (Arginine) RN - B8WCK70T7I (Trehalose) RN - EC 2.7.11.1 (TOR Serine-Threonine Kinases) SB - IM MH - Arginine/pharmacology MH - *Atherosclerosis/drug therapy/metabolism MH - Autophagy MH - Humans MH - Macrophages/metabolism MH - Nitric Oxide/pharmacology MH - *Plaque, Atherosclerotic MH - Reactive Oxygen Species/metabolism MH - TOR Serine-Threonine Kinases/metabolism/pharmacology MH - Trehalose/pharmacology OTO - NOTNLM OT - atherosclerosis OT - autophagy OT - carrier-free OT - macrophage OT - nanomotor OT - trehalose EDAT- 2022/02/25 06:00 MHDA- 2022/04/19 06:00 CRDT- 2022/02/24 12:18 PHST- 2022/02/25 06:00 [pubmed] PHST- 2022/04/19 06:00 [medline] PHST- 2022/02/24 12:18 [entrez] AID - 10.1021/acsnano.1c08391 [doi] PST - ppublish SO - ACS Nano. 2022 Mar 22;16(3):3808-3820. doi: 10.1021/acsnano.1c08391. Epub 2022 Feb 24.