PMID- 35123507 OWN - NLM STAT- MEDLINE DCOM- 20220331 LR - 20220401 IS - 1477-3155 (Electronic) IS - 1477-3155 (Linking) VI - 20 IP - 1 DP - 2022 Feb 5 TI - Inhibitory effect and mechanism of gelatin stabilized ferrous sulfide nanoparticles on porcine reproductive and respiratory syndrome virus. PG - 70 LID - 10.1186/s12951-022-01281-4 [doi] LID - 70 AB - BACKGROUND: The infection and spread of porcine reproductive and respiratory syndrome virus (PRRSV) pose a serious threat to the global pig industry, and inhibiting the viral infection process is a promising treatment strategy. Nanomaterials can interact with viruses and have attracted much attention due to their large specific surface area and unique physicochemical properties. Ferrous sulfide nanoparticles (FeS NPs) with the characteristics of high reactivity, large specific surface area, and low cost are widely applied to environmental remediation, catalysis, energy storage and medicine. However, there is no report on the application of FeS NPs in the antiviral field. In this study, gelatin stabilized FeS nanoparticles (Gel-FeS NPs) were large-scale synthesized rapidly by the one-pot method of co-precipitation of Fe(2+) and S(2‒). RESULTS: The prepared Gel-FeS NPs exhibited good stability and dispersibility with an average diameter of 47.3 nm. Additionally, they were characterized with good biocompatibility and high antiviral activity against PRRSV proliferation in the stages of adsorption, invasion, and replication. CONCLUSIONS: We reported for the first time the virucidal and antiviral activity of Gel-FeS NPs. The synthesized Gel-FeS NPs exhibited good dispersibility and biocompatibility as well as effective inhibition on PRRSV proliferation. Moreover, the Fe(2+) released from degraded Gel-FeS NPs still displayed an antiviral effect, demonstrating the advantage of Gel-FeS NPs as an antiviral nanomaterial compared to other nanomaterials. This work highlighted the antiviral effect of Gel-FeS NPs and provided a new strategy for ferrous-based nanoparticles against PRRSV. CI - (c) 2022. The Author(s). FAU - Tong, Ting AU - Tong T AD - College of Resource and Environment, College of Science, State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, No.1 Shizishan Street, Hongshan District, Wuhan, 430070, Hubei, People's Republic of China. FAU - Deng, Shuangfei AU - Deng S AD - College of Resource and Environment, College of Science, State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, No.1 Shizishan Street, Hongshan District, Wuhan, 430070, Hubei, People's Republic of China. FAU - Zhang, Xiaotong AU - Zhang X AD - College of Resource and Environment, College of Science, State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, No.1 Shizishan Street, Hongshan District, Wuhan, 430070, Hubei, People's Republic of China. FAU - Fang, Liurong AU - Fang L AD - State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, No.1 Shizishan Street, Hongshan District, Wuhan, 430070, Hubei, People's Republic of China. FAU - Liang, Jiangong AU - Liang J AUID- ORCID: 0000-0002-8210-0210 AD - College of Resource and Environment, College of Science, State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, No.1 Shizishan Street, Hongshan District, Wuhan, 430070, Hubei, People's Republic of China. liangjg@mail.hzau.edu.cn. FAU - Xiao, Shaobo AU - Xiao S AD - State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Key Laboratory of Preventive Veterinary Medicine in Hubei Province, The Cooperative Innovation Center for Sustainable Pig Production, Huazhong Agricultural University, No.1 Shizishan Street, Hongshan District, Wuhan, 430070, Hubei, People's Republic of China. vet@mail.hzau.edu.cn. LA - eng GR - 32130103/National Natural Science Foundation of China/ GR - 31772785/National Natural Science Foundation of China/ GR - 22074048/National Natural Science Foundation of China/ PT - Journal Article DEP - 20220205 PL - England TA - J Nanobiotechnology JT - Journal of nanobiotechnology JID - 101152208 RN - 0 (Antiviral Agents) RN - 0 (Ferrous Compounds) RN - 9000-70-8 (Gelatin) RN - TH5J4TUX6S (ferrous sulfide) SB - IM MH - Animals MH - Antiviral Agents/pharmacology MH - Ferrous Compounds/pharmacology MH - Gelatin MH - *Nanoparticles/chemistry MH - *Porcine respiratory and reproductive syndrome virus MH - Swine PMC - PMC8817501 OTO - NOTNLM OT - Adsorption OT - Antiviral mechanism OT - Ferrous sulfide nanoparticles OT - Inactivation OT - Invasion OT - Porcine reproductive and respiratory syndrome virus OT - Release OT - Replication COIS- The authors declare that they have no competing interests. EDAT- 2022/02/07 06:00 MHDA- 2022/04/01 06:00 PMCR- 2022/02/05 CRDT- 2022/02/06 20:25 PHST- 2021/10/21 00:00 [received] PHST- 2022/01/21 00:00 [accepted] PHST- 2022/02/06 20:25 [entrez] PHST- 2022/02/07 06:00 [pubmed] PHST- 2022/04/01 06:00 [medline] PHST- 2022/02/05 00:00 [pmc-release] AID - 10.1186/s12951-022-01281-4 [pii] AID - 1281 [pii] AID - 10.1186/s12951-022-01281-4 [doi] PST - epublish SO - J Nanobiotechnology. 2022 Feb 5;20(1):70. doi: 10.1186/s12951-022-01281-4.