Lactoferrin-modified nanoemulsions enhance brain-targeting and therapeutic efficacy of arctigenin against Toxoplasma gondii-induced neuronal injury

Toxoplasma gondii, a neurotropic protozoan parasite, affects the central nervous system and causes various neurological disorders. Previous studies have demonstrated that Arctigenin (AG) exhibits anti-T. gondii activity and reduces depression-like behaviors induced by T. gondii infection. This study...

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Main Authors: Jing-Mei Lu, Guang-Nan Jin, Yan Xin, Jing-Wen Ma, Xin-Yu Shen, Yan-Zhu Quan, Yi-Ming Liu, Jin-Yi Zhou, Bing-Zhe Wang, Ying-Biao Li, Xiang Xu, Lian-Xun Piao
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Language:English
Published: Elsevier 2025-04-01
Series:International Journal for Parasitology: Drugs and Drug Resistance
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Online Access:http://www.sciencedirect.com/science/article/pii/S2211320724000563
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author Jing-Mei Lu
Guang-Nan Jin
Yan Xin
Jing-Wen Ma
Xin-Yu Shen
Yan-Zhu Quan
Yi-Ming Liu
Jin-Yi Zhou
Bing-Zhe Wang
Ying-Biao Li
Xiang Xu
Lian-Xun Piao
author_facet Jing-Mei Lu
Guang-Nan Jin
Yan Xin
Jing-Wen Ma
Xin-Yu Shen
Yan-Zhu Quan
Yi-Ming Liu
Jin-Yi Zhou
Bing-Zhe Wang
Ying-Biao Li
Xiang Xu
Lian-Xun Piao
author_sort Jing-Mei Lu
collection DOAJ
description Toxoplasma gondii, a neurotropic protozoan parasite, affects the central nervous system and causes various neurological disorders. Previous studies have demonstrated that Arctigenin (AG) exhibits anti-T. gondii activity and reduces depression-like behaviors induced by T. gondii infection. This study aimed to enhance AG's brain-targeting and therapeutic efficacy by developing lactoferrin-modified nanoemulsions loaded with AG (Lf-AG-NEs). Lf-modified nanoemulsions were prepared and assessed using in vivo and in vitro infection models with the T. gondii RH strain, and a co-culture system of BV2 microglia and primary neuron cells. The effects of Lf-AG-NEs on T. gondii-induced neuronal injury were examined, and potential molecular mechanisms were elucidated through real-time quantitative PCR, western blotting, immunofluorescence, flow cytometry, immunohistochemistry, and Nissl staining. In vitro assessments showed significant increases in cellular uptake and blood-brain barrier penetration by Lf-AG-NEs. These nanoemulsions notably inhibited T. gondii proliferation in brain tissue and BV2 cells, surpassing the effects of free AG or AG-NEs alone. Additionally, Lf-AG-NEs substantially alleviated neuropathological changes and reduced microglial activation and neuroinflammation by downregulating the TLR4/NF-κB and TNFR1/NF-κB signaling pathways. Co-culturing BV2 cells with primary cortical neurons indicated that Lf-AG-NEs, similarly to CLI-095 and R7050, attenuated T. gondii-induced microglial activation and subsequent neuronal injury. In conclusion, the successfully prepared Lf-AG-NEs not only enhanced the anti-T. gondii effect but also strengthened the protective impact against neuronal injury induced by T. gondii, through the modulation of microglial signaling pathways.
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spelling doaj-art-edc553f0978f4e4d8aff7d34b5f6c69d2025-08-20T03:05:21ZengElsevierInternational Journal for Parasitology: Drugs and Drug Resistance2211-32072025-04-012710057510.1016/j.ijpddr.2024.100575Lactoferrin-modified nanoemulsions enhance brain-targeting and therapeutic efficacy of arctigenin against Toxoplasma gondii-induced neuronal injuryJing-Mei Lu0Guang-Nan Jin1Yan Xin2Jing-Wen Ma3Xin-Yu Shen4Yan-Zhu Quan5Yi-Ming Liu6Jin-Yi Zhou7Bing-Zhe Wang8Ying-Biao Li9Xiang Xu10Lian-Xun Piao11Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Molecular Medicine Research Center, College of Pharmacy, Yanbian University, Yanji, 133002, Jilin Province, ChinaKey Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Molecular Medicine Research Center, College of Pharmacy, Yanbian University, Yanji, 133002, Jilin Province, ChinaKey Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Molecular Medicine Research Center, College of Pharmacy, Yanbian University, Yanji, 133002, Jilin Province, ChinaKey Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Molecular Medicine Research Center, College of Pharmacy, Yanbian University, Yanji, 133002, Jilin Province, ChinaKey Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Molecular Medicine Research Center, College of Pharmacy, Yanbian University, Yanji, 133002, Jilin Province, ChinaKey Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Molecular Medicine Research Center, College of Pharmacy, Yanbian University, Yanji, 133002, Jilin Province, ChinaKey Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Molecular Medicine Research Center, College of Pharmacy, Yanbian University, Yanji, 133002, Jilin Province, ChinaKey Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Molecular Medicine Research Center, College of Pharmacy, Yanbian University, Yanji, 133002, Jilin Province, ChinaKey Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Molecular Medicine Research Center, College of Pharmacy, Yanbian University, Yanji, 133002, Jilin Province, ChinaDepartment of Neurology, Yanbian University Hospital, Yanbian University, Yanji, 133000, Jilin Province, China; Corresponding author.Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Molecular Medicine Research Center, College of Pharmacy, Yanbian University, Yanji, 133002, Jilin Province, China; Corresponding author.Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Molecular Medicine Research Center, College of Pharmacy, Yanbian University, Yanji, 133002, Jilin Province, China; Corresponding author.Toxoplasma gondii, a neurotropic protozoan parasite, affects the central nervous system and causes various neurological disorders. Previous studies have demonstrated that Arctigenin (AG) exhibits anti-T. gondii activity and reduces depression-like behaviors induced by T. gondii infection. This study aimed to enhance AG's brain-targeting and therapeutic efficacy by developing lactoferrin-modified nanoemulsions loaded with AG (Lf-AG-NEs). Lf-modified nanoemulsions were prepared and assessed using in vivo and in vitro infection models with the T. gondii RH strain, and a co-culture system of BV2 microglia and primary neuron cells. The effects of Lf-AG-NEs on T. gondii-induced neuronal injury were examined, and potential molecular mechanisms were elucidated through real-time quantitative PCR, western blotting, immunofluorescence, flow cytometry, immunohistochemistry, and Nissl staining. In vitro assessments showed significant increases in cellular uptake and blood-brain barrier penetration by Lf-AG-NEs. These nanoemulsions notably inhibited T. gondii proliferation in brain tissue and BV2 cells, surpassing the effects of free AG or AG-NEs alone. Additionally, Lf-AG-NEs substantially alleviated neuropathological changes and reduced microglial activation and neuroinflammation by downregulating the TLR4/NF-κB and TNFR1/NF-κB signaling pathways. Co-culturing BV2 cells with primary cortical neurons indicated that Lf-AG-NEs, similarly to CLI-095 and R7050, attenuated T. gondii-induced microglial activation and subsequent neuronal injury. In conclusion, the successfully prepared Lf-AG-NEs not only enhanced the anti-T. gondii effect but also strengthened the protective impact against neuronal injury induced by T. gondii, through the modulation of microglial signaling pathways.http://www.sciencedirect.com/science/article/pii/S2211320724000563ArctigeninLactoferrinNanoemulsionsToxoplasma gondiiNeuronMicroglia
spellingShingle Jing-Mei Lu
Guang-Nan Jin
Yan Xin
Jing-Wen Ma
Xin-Yu Shen
Yan-Zhu Quan
Yi-Ming Liu
Jin-Yi Zhou
Bing-Zhe Wang
Ying-Biao Li
Xiang Xu
Lian-Xun Piao
Lactoferrin-modified nanoemulsions enhance brain-targeting and therapeutic efficacy of arctigenin against Toxoplasma gondii-induced neuronal injury
International Journal for Parasitology: Drugs and Drug Resistance
Arctigenin
Lactoferrin
Nanoemulsions
Toxoplasma gondii
Neuron
Microglia
title Lactoferrin-modified nanoemulsions enhance brain-targeting and therapeutic efficacy of arctigenin against Toxoplasma gondii-induced neuronal injury
title_full Lactoferrin-modified nanoemulsions enhance brain-targeting and therapeutic efficacy of arctigenin against Toxoplasma gondii-induced neuronal injury
title_fullStr Lactoferrin-modified nanoemulsions enhance brain-targeting and therapeutic efficacy of arctigenin against Toxoplasma gondii-induced neuronal injury
title_full_unstemmed Lactoferrin-modified nanoemulsions enhance brain-targeting and therapeutic efficacy of arctigenin against Toxoplasma gondii-induced neuronal injury
title_short Lactoferrin-modified nanoemulsions enhance brain-targeting and therapeutic efficacy of arctigenin against Toxoplasma gondii-induced neuronal injury
title_sort lactoferrin modified nanoemulsions enhance brain targeting and therapeutic efficacy of arctigenin against toxoplasma gondii induced neuronal injury
topic Arctigenin
Lactoferrin
Nanoemulsions
Toxoplasma gondii
Neuron
Microglia
url http://www.sciencedirect.com/science/article/pii/S2211320724000563
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