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Li L, Jin T, Chen S, Cao H, Ma Y, Fang W, Wang Y, Liu Q, Zheng L, Wijayanti D, Dong W. Exploring novel function of Gpx5 antioxidant activity: Assisting epididymal cells secrete functional extracellular vesicles. J Cell Physiol 2024; 239:e31273. [PMID: 38666419 DOI: 10.1002/jcp.31273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 03/25/2024] [Accepted: 04/02/2024] [Indexed: 06/14/2024]
Abstract
Glutathione peroxisomal-5 (Gpx5) promotes the elimination of H2O2 or organic hydrogen peroxide, and plays an important role in the physiological process of resistance to oxidative stress (OS). To directly and better understand the protection of Gpx5 against OS in epididymal cells and sperm, we studied its mechanism of antioxidant protection from multiple aspects. To more directly investigate the role of Gpx5 in combating oxidative damage, we started with epididymal tissue morphology and Gpx5 expression profiles in combination with the mouse epididymal epithelial cell line PC1 (proximal caput 1) expressing recombinant Gpx5. The Gpx5 is highly expressed in adult male epididymal caput, and its protein signal can be detected in the sperm of the whole epididymis. Gpx5 has been shown to alleviate OS damage induced by 3-Nitropropionic Acid (3-NPA), including enhancing antioxidant activity, reducing mitochondrial damage, and suppressing cell apoptosis. Gpx5 reduces OS damage in PC1 and maintains the well-functioning extracellular vesicles (EVs) secreted by PC1, and the additional epididymal EVs play a role in the response of sperm to OS damage, including reducing plasma membrane oxidation and death, and increasing sperm motility and sperm-egg binding ability. Our study suggests that GPX5 plays an important role as an antioxidant in the antioxidant processes of epididymal cells and sperm, including plasma membrane oxidation, mitochondrial oxidation, apoptosis, sperm motility, and sperm-egg binding ability.
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Affiliation(s)
- Long Li
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Tianqi Jin
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Shaoxian Chen
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Heran Cao
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Yuxuan Ma
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Wuzi Fang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Yang Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Qimin Liu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Lijuan Zheng
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Dwi Wijayanti
- Department of Animal Science, Perjuangan University of Tasikmalaya, Tasikmalaya, West Java, Indonesia
| | - Wuzi Dong
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
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Fu T, Calabrese V, Bancel S, Quéau H, Garnero L, Delorme N, Abbaci K, Salvador A, Chaumot A, Geffard O, Degli-Esposti D, Ayciriex S. ToF-SIMS imaging shows specific lipophilic vitamin alterations in chronic reprotoxicity caused by the emerging contaminant Pravastatin in Gammarus fossarum. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2024; 271:106935. [PMID: 38723468 DOI: 10.1016/j.aquatox.2024.106935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 04/22/2024] [Accepted: 04/28/2024] [Indexed: 05/21/2024]
Abstract
Blood lipid-lowering agents, such as Pravastatin, are among the most frequently used pharmaceuticals released into the aquatic environment. Although their effects on humans are very well understood, their consequences on freshwater organisms are not well known, especially in chronic exposure conditions. Gammarus fossarum is commonly used as sentinel species in ecotoxicology because of its sensitivity to a wide range of environmental contaminants and the availability of standardized bioassays. Moreover, there is an increased interest in linking molecular changes in sentinel species, such as gammarids, to observed toxic effects. Here, we performed a reproductive toxicity assay on females exposed to different concentrations of pravastatin (30; 300; 3,000 and 30,000 ng L-1) during two successive reproductive cycles and we applied ToF-SIMS imaging to evaluate the effect of pravastatin on lipid homeostasis in gammarids. Reproductive bioassay showed that pravastatin could affect oocyte development in Gammarus fossarum inducing embryotoxicity in the second reproductive cycle. Mass spectrometry imaging highlighted the disruption in vitamin E production in the oocytes of exposed female gammarids at the second reproductive cycle, while limited alterations were observed in other lipid classes, regarding both production and tissue distribution. The results demonstrated the interest of applying spatially resolved lipidomics by mass spectrometry imaging to assess the molecular effects induced by long-term exposure to environmental pharmaceutical residues in sentinel species.
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Affiliation(s)
- Tingting Fu
- Univ Lyon, CNRS, Université Claude Bernard Lyon 1, Institut des Sciences Analytiques, UMR 5280, 5 rue de la Doua, Villeurbanne F-69100, France
| | - Valentina Calabrese
- Univ Lyon, CNRS, Université Claude Bernard Lyon 1, Institut des Sciences Analytiques, UMR 5280, 5 rue de la Doua, Villeurbanne F-69100, France
| | - Sarah Bancel
- INRAEe, UR RiverLy, Ecotoxicology Team, Villeurbanne F-69625, France
| | - Hervé Quéau
- INRAEe, UR RiverLy, Ecotoxicology Team, Villeurbanne F-69625, France
| | - Laura Garnero
- INRAEe, UR RiverLy, Ecotoxicology Team, Villeurbanne F-69625, France
| | - Nicolas Delorme
- INRAEe, UR RiverLy, Ecotoxicology Team, Villeurbanne F-69625, France
| | - Khedidja Abbaci
- INRAEe, UR RiverLy, Ecotoxicology Team, Villeurbanne F-69625, France
| | - Arnaud Salvador
- Univ Lyon, CNRS, Université Claude Bernard Lyon 1, Institut des Sciences Analytiques, UMR 5280, 5 rue de la Doua, Villeurbanne F-69100, France
| | - Arnaud Chaumot
- INRAEe, UR RiverLy, Ecotoxicology Team, Villeurbanne F-69625, France
| | - Olivier Geffard
- INRAEe, UR RiverLy, Ecotoxicology Team, Villeurbanne F-69625, France
| | | | - Sophie Ayciriex
- Univ Lyon, CNRS, Université Claude Bernard Lyon 1, Institut des Sciences Analytiques, UMR 5280, 5 rue de la Doua, Villeurbanne F-69100, France.
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Zhao Y, Hu L, Hou Y, Wang Y, Peng Y, Nie X. Toxic effects of environmentally relevant concentrations of naproxen exposure on Daphnia magna including antioxidant system, development, and reproduction. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2024; 266:106794. [PMID: 38064890 DOI: 10.1016/j.aquatox.2023.106794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 11/17/2023] [Accepted: 12/06/2023] [Indexed: 01/02/2024]
Abstract
Naproxen (NPX) is one of common non-prescription non-steroidal anti-inflammatory drugs (NSAIDs) which is widely detected in aquatic environments worldwide due to its high usage and low degradation. NPX exerts anti-inflammatory and analgesic pharmacological effects through the inhibition of prostaglandin-endoperoxide synthase (PTGS), also known as cyclooxygenase (COX). Given its evolutionarily relatively conserved biological functions, the potential toxic effects of NPX on non-target aquatic organisms deserve more attention. However, the ecotoxicological studies of NPX mainly focused on its acute toxic effects under higher concentrations while the chronic toxic effects under realistic concentrations exposure, especially for the underlying molecular mechanisms still remain unclear. In the present study, Daphnia magna, being widely distributed in freshwater aquatic environments, was selected to investigate the toxic effects of environmentally relevant concentrations of NPX via determining the response of the Nrf2/Keap1 signaling pathway-mediated antioxidant system in acute exposure, as well as the changes in life-history traits, such as growth, reproduction, and behavior in chronic exposure. The results showed that the short-term exposure to NPX (24 h and 48 h) suppressed ptgs2 expression while activating Nrf2/Keap1 signaling pathway and its downstream antioxidant genes (ho-1, sod, cat and trxr). However, with prolonged exposure to 96 h, the opposite performance was observed, the accumulation of malondialdehyde (MDA) indicated that D. magna suffered from severe oxidative stress. To maintain homeostasis, the exposed organism may trigger ferroptosis and apoptosis processes with the help of Silent mating type information regulation 2 homologs (SIRTs). The long-term chronic exposure to NPX (21 days) caused toxic effects on D. magna at the individual and population levels, including growth, reproduction and behavior, which may be closely related to the oxidative stress induced by the drug. The present study suggested that more attention should be paid to the ecological risk assessment of NSAIDs including NPX on aquatic non-target organisms.
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Affiliation(s)
- Yufei Zhao
- Department of Ecology, Jinan University, Guangzhou 510632, China
| | - Limei Hu
- Department of Ecology, Jinan University, Guangzhou 510632, China
| | - Yingshi Hou
- Department of Ecology, Jinan University, Guangzhou 510632, China
| | - Yimeng Wang
- Department of Ecology, Jinan University, Guangzhou 510632, China
| | - Ying Peng
- Research and Development Center for Watershed Environmental Eco-Engineering, Beijing Normal University, Zhuhai, China
| | - Xiangping Nie
- Department of Ecology, Jinan University, Guangzhou 510632, China.
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