FOOD AND CHEMICAL TOXICOLOGY
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2025
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IF 3.5
Yue Che,Xiaozhu Wang,Qian Li,Xiyi Peng,Zhen Liu,Wenhui Xu,Mei Jing,Ting Wang,Jian Gao,Weiling Wang
A B S T R A C T Exposure to 4-vinylcyclohexene diepoxide (VCD) has been associated to reproductive toxicity, However, the dynamic ovarian function alterations over time in rats and the underlying mechanisms remain unclear. This study investigated the effects of VCD on ovarian function in female Sprague-Dawley (SD) rats on the 25, 60 and 135 days after VCD injection and discovered related mechanisms. Our results showed that VCD had little ovotoxicity on the 25 th day, as no significant changes were observed except for the reduction of preantral follicles. However, on the 60 th day and 135 th day, rats exhibited irregular estrous cycles, abnormal serum sex hormone levels, ovarian morphological damage, decreased primordial and preantral follicles, and increased atretic follicles. We further found that on the 60 th and 135 th day, VCD might exert ovotoxicity by decreasing antioxidant enzyme levels, inhibiting of the Kelch-like ECH-associated protein 1 (KEAP1)/nuclear factor erythroid 2-related factor 2 (NRF2) and PTEN-induced putative kinase 1 (PINK1)/E3 ubiquitin ligase (Parkin) signaling pathway. Interestingly, on the 25 th day, KEAP1/NRF2 and PINK1/Parking signaling pathway were activated. This study provided a wider application in using laboratory rodents as a model of ovarian failure and highlighted that VCD-induced ovotoxicity was linked to the regulation of the KEAP1/NRF2 and PINK1/Parkin signaling pathways.
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Toxins
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2022
·Vol. 14
·期 9
·641
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IF 5.075
Jiehuan Xu,Lingwei Sun,Mengqian He,Shushan Zhang,Jun Gao,Caifeng Wu,Defu Zhang,Jianjun Dai
Mitochondria hold redox homeostasis and energy metabolism as a crucial factor during oocyte maturation, while the exposure of estrogenic mycotoxin zearalenone causes developmental incapacity in porcine oocyte. This study aimed to reveal a potential resistance of phytoalexin resveratrol against zearalenone during porcine oocyte maturation and whether its mechanism was related with PTEN-induced kinase 1 (PINK1)/Parkin-mediated mitophagy. Porcine oocytes were exposed to 20 μM zearalenone with or without 2 μM resveratrol during in vitro maturation. As for the results, zearalenone impaired ultrastructure of mitochondria, causing mitochondrial depolarization, oxidative stress, apoptosis and embryonic developmental incapacity, in which mitophagy was induced in response to mitochondrial dysfunction. Phytoalexin resveratrol enhanced mitophagy through PINK1/Parkin in zearalenone-exposed oocytes, manifesting as enhanced mitophagy flux, upregulated PINK1, Parkin, microtubule-associated protein light-chain 3 beta-II (LC3B-II) and downregulated substrates mitofusin 2 (MFN2), voltage-dependent anion channels 1 (VDAC1) and p62 expressions. Resveratrol redressed zearalenone-induced mitochondrial depolarization, oxidative stress and apoptosis, and accelerated mitochondrial DNA copy during maturation, which improved embryonic development. This study offered an antitoxin solution during porcine oocyte maturation and revealed the involvement of PINK1/Parkin-mediated mitophagy, in which resveratrol mitigated zearalenone-induced embryonic developmental incapacity.Keywords:zearalenone;mitophagy;resveratrol;PINK1/Parkin;porcine oocyteKey Contribution:The application of phytoalexin resveratrol redresses oocyte developmental incapacity against zearalenone contamination. PINK1/Parkin-mediated mitophagy is involved in the antitoxin effect of resveratrol.
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International Journal of Nanomedicine
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2021
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IF 6.4
Xiaodi Gong,Xin Pu,Jing Wang,Linlin Yang,Yunxia Cui,Lijuan Li,Xiao Sun,Jichang Liu,Jingfeng Bai,Yudong Wang
Purpose Iron-based nanomaterials have recently been developed as excellent and potent Fenton reagents to reactive oxygen species (ROS) during chemodynamic therapy (CDT). The performance of the materials, however, can be impaired by the intrinsic antioxidant defense mechanism in organisms, such as autophagy. Methods The nanoscale metal-organic frameworks (nMOFs), nMIL-100 (Fe), were exploited and characterized. Also, the Fenton-like catalytic characteristics, anti-endometrial cancer (EC) effects and potential mechanisms of nMIL-100 (Fe) nanoparticles were investigated in vitro. Results The synthesized nMIL-100 (Fe) nanocatalyst catalyzed hydroxyl radicals (·OH) production in the presence of hydrogen peroxide (H 2 O 2 ) and simultaneously depleted intracellular glutathione (GSH). Combining with H 2 O 2 , nMIL-100 (Fe) nanoparticles exhibited enhanced cytotoxicity for EC cells, especially for progesterone treatment-insensitive KLE cells, probably due to relatively lower expression of the catalase gene. The accumulated ·OH initiated PTEN induced putative kinase 1 (PINK1)/E3 ubiquitin-protein ligase Parkin-mediated cytoprotective mitophagy in turn to partially rescue ·OH-induced cell apoptosis. Furthermore, both pretreatments of EC cells with siRNA-mediated Parkin knockdown and Mdivi-1 (a mitophagy inhibitor) addition were sufficient to ensure nMIL-100 (Fe) synergizing with H 2 O 2 -induced oxidative damages. Conclusion These results suggest that the degree of mitophagy should be taken into consideration to optimize therapeutic efficiency when developing ROS based-CDT for EC cancer therapies. Therefore, a nMIL-100 (Fe)-guided, elevated ROS and overwhelmed mitophagy-mediated therapeutic strategy may have greater promise for EC therapy compared with current treatment modalities.
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EUROPEAN JOURNAL OF PHARMACOLOGY
·
2024
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IF 4.2
Lanxin Li,Yang Zhang,Zhengqian Chen,Can Xu,Zhongqiu Xu,Haitao Pei,Wei Wang,Ruyong Yao,Cui Hao
Parkinson's disease (PD) is a common age-related neurodegenerative disorder, which may be largely due to the mitochondrial dysfunction and impaired mitophagy. Thus, it is of great importance to seek novel therapeutic strategies for PD targeting mitochondrial function and mitophagy. Cytarabine is a marine-derived antimetabolite used in the treatment of acute leukemia, which is also used in the study of the nervous system. In this study, we found that cytarabine pretreatment significantly inhibited the apoptosis and necrosis in the ROT-induced SH-SY5Y cell PD model and reduced the oxidative stress, as evidenced by the reduced MDA levels and the increased levels of SOD, GSH, and total antioxidant capacity. Cytarabine can also enhance mitochondrial vitality, improve mitochondrial respiratory function, and preserve mitochondrial morphology. Cytarabine also enhanced the expression of the mitophagy-related proteins PINK1, Parkin, VDAC1, and DJ-1, and its actions can be reversed by treatment with AMPK inhibitor - Compound C (CC), suggesting that AMPK activation may be involved in cytarabine-enhanced mitophagy. Furthermore, cytarabine can also ameliorate the motor symptoms in the MPTP-induced PD-like mice model, and attenuate the neuropathy in the substantia nigra (SN) of PD mice, while Compound C antagonized cytarabine's beneficial effects. In summary, marine-derived compound cytarabine could resist neurological damage both in vitro and in vivo by activating AMPK to increase PINK1/Parkin-induced mitophagy, serving as a promising disease modulator for treating neurodegenerative disease.
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Journal of Orthopaedic Surgery and Research
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2025
·Vol. 20
·期 1
·1-17
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IF 2.8
Zhang Yang,Gao Yucheng,Liu Shuanggong,Yang Guowei,Rong Yijun,Wu Dongjin,Gao Zengxin
Background Intervertebral disc degeneration (IVDD) is a multifactorial disorder and a leading contributor to chronic low back pain (LBP), highlighting the need for novel therapeutic strategies. Recent studies indicate that ferroptosis, driven by oxidative stress, plays a key role in the loss of nucleus pulposus cells (NPCs) during IVDD. Vacuole membrane protein 1 (VMP1), a membrane-associated regulator of autophagy, is known to influence various cellular processes. However, its role in IVDD remains unclear. This study investigates the function of VMP1 in IVDD and the mechanisms involved.Methods We established a rat model of IVDD to investigate the correlation between VMP1 expression and ferroptosis during IVDD progression. In vitro, a ferroptosis model of NPCs was induced using tert-butyl hydroperoxide (TBHP) to examine the effects of VMP1 knockdown on NPC apoptosis, extracellular matrix (ECM) degradation, ferroptosis, PINK1/Parkin-dependent mitophagy, and mitochondrial function. Furthermore, cyclosporin A (CsA), a mitophagy inhibitor, was employed to explore the role and potential mechanisms of VMP1 overexpression in regulating PINK1/Parkin-mediated mitophagy, mitochondrial function, and ferroptosis.Results In this study, we observed a significant downregulation of VMP1 expression in a rat model of IVDD, which was accompanied by the occurrence of ferroptosis. Subsequent experiments revealed that VMP1 knockdown aggravated apoptosis and ECM degradation in NPCs. Furthermore, we demonstrated that VMP1 silencing promoted ferroptosis, inhibited PINK1/Parkin-dependent mitophagy, and impaired mitochondrial function in NPCs. In contrast, VMP1 overexpression enhanced PINK1/Parkin-mediated mitophagy, mitigated mitochondrial dysfunction, and suppressed ferroptosis. Notably, these protective effects were abolished by treatment with CsA.Conclusion sThis study demonstrates that VMP1 alleviates IVDD by inhibiting ferroptosis and mitochondrial dysfunction in NPCs, a protective effect mediated through the promotion of PINK1/Parkin-dependent mitophagy. Our study underscores the pivotal role of VMP1 in coordinating mitophagy and ferroptosis during IVDD pathogenesis, identifying VMP1 as a potential therapeutic target for IVDD treatment.Graphical
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JOURNAL OF MOLECULAR HISTOLOGY
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2025
·Vol. 57
·期 1
·11
·
IF 2.2
Wang Huan,Han Jian,Li Lin,Li Yan,Yang Jun,Qiu Wangzhong,Yao Liuhua,Zhou Jianjun
Background Shen-Ling-Bai-Zhu-San (SLBZS), a classic formula, shows excellent therapeutic effects on ulcerative colitis (UC). However, its pharmacological mechanism remains unclear. This study aims to explore the SLBZS’s mechanism on mitophagy and inflammation in UC. Method The UC rat model was constructed using 4.5% DSS. The in vivo effects of SLBZS on mitophagy and inflammation were investigated by combining the autophagy inhibitor 3-MA. Caco-2 cells were co-treated with DSS and LPS to mimic UC-like inflammatory. The main active components of SLBZS were analyzed by HPLC. Combined with 3-MA or knockdown of Nrf2, the mechanism by which the main active component of SLBZS Ginsenoside Rg1 affected oxidative stress and inflammation was investigated. Results SLBZS administration alleviated colonic injury in UC rats, reduced disease activity index, increased colonic length, promoted ZO-1, occludin, LGR5, and MUC-2 expressions, decreased ROS production, MDA level, and TNF-α, IL-1β, IL-6, IL-17, and p62 expressions, increased SOD and GSH-PX levels, mitochondrial membrane potential, and PINK1, TOM20, Nrf2, LC3, PINK1, and Parkin levels. 3-MA prevented this phenomenon, indicating that SLBZS inhibited UC inflammation by enhancing mitophagy. The molecular docking results showed that Ginsenoside Rg1 bound to Nrf2. The interaction between Nrf2 and PINK1 was confirmed. Mechanistically, Ginsenoside Rg1 relieved oxidative stress and inflammation in UC-like Caco-2 cell model by Nrf2/PINK1/Parkin pathway-mediated mitophagy. Conclusion Our results indicated that the Ginsenoside Rg1 promoted Nrf2/PINK1/Parkin pathway-mediated mitophagy, thereby alleviating UC, suggesting that Ginsenoside Rg1 could serve as a promising therapeutic agent for clinical UC, with the Nrf2/ PINK1/Parkin axis representing a potential strategy.
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Research
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2024
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IF 8.5
Pingjun Zhu,Xi Wang,Qingfeng Wu,Jianbo Zhu,Yifan Que,Yan Wang,Yongkai Ding,Yang Yang,Jie Jin,Xin Zhang,Qian Xu,Qinge Yong,Christopher Chang,Guogang Xu,Yingzhen Du
Background: B-cell receptor-associated protein 31 (BCAP31) has protective effects against alveolar epithelial type II cells (AECII) damage by inhibiting mitochondrial injury in acute lung injury (ALI) induced by lipopolysaccharide (LPS), whereas the precise mechanism is still unclear. It is known that PTEN-induced putative kinase 1 (PINK1)/Parkin-mediated mitophagy can remove damaged mitochondria selectively, which may be involved in BCAP31 protection against mitochondrial injury. Methods: In the current study, ALI mice models were established by using surfactant protein C (Sftpc)-BCAP31 transgenic mice (BCAP31TG mice) and AECII-specific BCAP31 knockout mice (BCAP31CKO mice) treated with LPS. Results: BCAP31 expression in lung tissue and AECII were inhibited in ALI mice. Under LPS challenge, lower level of BCAP31 was found to correlate positively with pathological injury of the lung, respiratory dysfunction, mortality rates, inflammation response, and AECII damage. Further study showed that down-regulation of BCAP31 induced decreased phosphorylation of PINK1 via reduced binding to PINK1, thereby restraining PINK1/Parkin-mediated mitophagy. Down-regulation of mitophagy promoted mitochondrial injury, as shown by the increase in mitochondrial permeability transition pore opening rate, together with enhanced mitochondrial reactive oxygen species (mROS), which were accompanied by increased cellular apoptosis and reactive oxygen species (ROS). The increased cellular ROS contributed to the inflammatory response via activation of nuclear factor κB (NF-κB). In contrast, BCAP31 overexpression promoted phosphorylation of PINK1 and PINK1/Parkin-mediated mitophagy, thus blocking the mROS/ROS/NF-κB pathway, favoring a protective condition that ultimately led to the inhibition of AECII apoptosis and inflammatory response in LPS-induced ALI. Conclusion: Ultimately, BCAP31 alleviated ALI by activating PINK1/Parkin-mediated mitophagy and blocking the mROS/ROS/NF-κB pathway in AECII.
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INTERNATIONAL IMMUNOPHARMACOLOGY
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2025
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IF 4.7
Yang Zhang,Deguo Xing,Yi Liu,Shiyu Sha,Yueying Xiao,Zhonghao Liu,Qingfeng Yin,Zengxin Gao,Wenguang Liu
Intervertebral disc degeneration (IVDD) is a chronic degenerative disease with a complex pathophysiological mechanism. Increasing evidence suggests that the NOD-like receptor thermal protein domain associated protein 3 (NLRP3)-mediated pyroptosis of nucleus pulposus cells (NPCs) plays a crucial role in the pathological progression of IVDD. Pyroptosis is a novel form of programmed cell death characterized by the formation of plasma membrane pores by gasdermin family proteins, leading to cell swelling, membrane rupture, and the release of inflammatory cytokines, which trigger an inflammatory response. The close relationship between pyroptosis and mitophagy has been previously described in various diseases, but the crosstalk between pyroptosis and mitophagy in IVDD remains unexplored. Cellular repressor of E1A-stimulated genes 1 (CREG1) is a secreted glycoprotein involved in cell differentiation and homeostasis regulation and has been shown to promote lysosomal biogenesis and function. However, the potential role and underlying mechanisms of CREG1 in the progression of IVDD have not yet been reported. In this study, we first observed that CREG1 is downregulated following IVDD and that pyroptosis occurs. Furthermore, CREG1 knockdown inhibited NPC proliferation and exacerbated apoptosis and degeneration. Moreover, we confirmed that CREG1 knockdown induced NLRP3 activation while also leading to mitophagy inhibition and mitochondrial dysfunction in NPCs. CREG1 overexpression ameliorated LPS-induced mitophagy inhibition and mitochondrial dysfunction by promoting PINK1/Parkin-mediated mitophagy, thereby suppressing NLRP3 inflammasome activation. However, these protective effects were reversed by pretreatment with the mitophagy inhibitor cyclosporin A (CsA). In a rat model of IVDD, imaging and histological assessments revealed that CREG1 overexpression effectively alleviated the progression of IVDD. Additionally, CREG1 overexpression reduced the expression of NLRP3, caspase-1, and IL-1β while increasing the expression of collagen II, PINK1 and LC3, delaying the course of IVDD. Overall, this study highlights the importance of the interplay between CREG1-mediated regulation of mitophagy and pyroptosis in the pathogenesis of IVDD, identifying CREG1 as a promising therapeutic target for IVDD treatment.
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Food & Function
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2023
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IF 6.1
Dekun Cheng,Zhangtie Wang,Xin Guo,Yiwen Guo,Yu Zhang,Yuanhui Zhao,Ruijie Liu,Ming Chang
Dietary nutritional support for special populations is an effective and feasible method to improve quality of life of patients and reduce medical pressure. The effects of ATSO on chemotherapy population were evaluated by a zebrafish model of demyelination. The results showed that 100 μg/mL ATSO reversed tail morphology damage, axon degeneration, touch response delay, ROS level upregulation and the expression of myelin basic protein decrease in chemotherapy-induced zebrafish. In addition, the expression of myelin markers (including sox10, krox20, pmp22) in oxaliplatin-induced cells was markedly reversed by ATSO and its active components (gondoic acid, erucic acid, nervonic acid). ATSO and its active components could reverse demyelination by ameliorating mitochondrial dysfunction. Conversely, linoleic acid and linolenic acid promoted demyelination by exacerbating mitochondrial dysfunction. Moreover, the Pink1/Parkin pathway was recognized as the main reason for ATSO and its active components to improve mitochondrial function by activating mitophagy and restoring autophagic flow. Taken together, this study demonstrated that ATSO and its active components could be further developed as novel functional food ingredients to antagonize demyelination.
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BIOMACROMOLECULES
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2025
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IF 5.4
Yu Sun,Li Cui,Wanqiu Peng,Rong Chen,Xueneng Guan,Jiangyun Liu
Parkinson’s disease (PD) is difficult to treat clinically and lacks an effective treatment. The aim of this study was to synthesize and characterize butyrate-modified hyaluronic acid (HA-But), validate its therapeutic efficacy, and elucidate its mechanisms of action in PD. Behavioral tests, including the open field test, Y-maze, and elevated plus maze test, demonstrated that HA-But significantly alleviated motor dysfunction in PD mice. ELISA results indicated a marked reduction in pro-inflammatory cytokine levels following the HA-But treatment. In addition, immunohistochemistry, immunofluorescence, and Western blot analyses revealed that HA-But improved dopaminergic neuron survival and reduced α-synuclein aggregation. Furthermore, HA-But activated PINK1/Parkin-mediated mitophagy, modulated gut microbiota composition, and increased short-chain fatty acid (SCFA) levels, especially butyric acid. Combining HA-But with gastrodin further improved the PD symptoms in mice. These findings suggested the potential of HA-But as a novel approach for PD treatment.
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BIOCHEMICAL PHARMACOLOGY
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2024
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IF 5.3
Jia Xi Ye,Jia Ying Wu,Liang Ai,Min Zhu,Yun Li,Dong Yin,Qihui Huang
Alzheimer’s disease (AD) is a neurodegenerative disorder characterized by the significant involvement of amyloid-beta (Aβ) peptide in its pathogenesis. Geniposide, derived from the versatile medicinal of Gardenia jasminoides , is one of the active compounds studied extensively. The objective was to explore the impact of geniposide on Aβ 25-35 -induced damage in HT22 cells, specifically focusing on its modulation of PINK1/Parkin-mediated mitophagy. In our investigation, geniposide exhibited remarkable restorative effects by enhancing cell viability and preserving the mitochondrial membrane potential. Moreover, it effectively reduced and mitigated the oxidative stress and apoptosis rates induced by Aβ 25-35 . Notably, geniposide exhibited the capacity to enhance autophagic flux, upregulate LC3II and Beclin-1 expression, and downregulate the expression of p62. Furthermore, geniposide positively influenced the expression of PINK1 and Parkin proteins, with molecular docking substantiating a strong interaction between geniposide and PINK1/Parkin proteins. Intriguingly, the beneficial outcomes of geniposide on alleviating the pronounced apoptosis rates, the overproduction of reactive oxygen species, and diminished the PINK1 and Parkin expression induced by Aβ 25-35 were compromised by the mitophagy inhibitor cyclosporine A (CsA). Collectively, these findings suggested that geniposide potentially shields HT22 cells against neurodegenerative damage triggered by Aβ 25-35 through the activation of mitophagy. The insights contribute valuable references to the defensive consequences against neurological damage of geniposide, thereby highlighting its potential as a therapeutic intervention in AD.
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EXPERIMENTAL CELL RESEARCH
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2026
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IF 3.5
Ruman Chen,Jiqing He,Na An,Mingzhi Xu,Liheng Wang,Yafei Bai
Background Vascular calcification (VC) is a severe cardiovascular complication of chronic kidney disease (CKD), driven by vascular smooth muscle cell (VSMC) osteogenic trans-differentiation and exacerbated by oxidative stress and cellular dysfunction. Despite its clinical relevance, the molecular mechanisms underlying CKD-associated VC remain incompletely understood. This study investigates the role of Sirtuin 1 (SIRT1) in modulating VC through ferroptosis inhibition and mitophagy activation and examines whether microRNA-181c-5p (miR-181c-5p) contributes to SIRT1 dysregulation in this context. Methods A CKD-associated VC model was induced in rats by 5/6 nephrectomy followed by high calcium/phosphate and calcitriol loading, and an in vitro calcification model was established in primary rat VSMCs. SIRT1 was manipulated using AAV9-mediated overexpression in vivo and plasmid overexpression or inhibition in vitro . Upstream regulation of SIRT1 by miR-181c-5p was predicted bioinformatically and validated by RNA pull-down and dual-luciferase assays. Ferroptosis was assessed by redox and Fe 2+ indices, and mitophagy by Pink1/Parkin, LC3-II and p62 expression. Rescue experiments employed erastin, Mdivi-1 and Parkin knockdown. Results SIRT1 expression was markedly reduced in calcified aortic tissues and VSMCs. SIRT1 overexpression suppressed VC by reducing calcium deposition, downregulating osteogenic markers, and increasing fetuin-A levels. SIRT1 also suppressed ferroptosis by restoring the GSH/GPX4/SLC7A11 axis and limiting ROS and lipid peroxidation, whereas erastin abolished these effects. Mechanistically, miR-181c-5p was found to directly target SIRT1 and promote VSMC calcification by repressing SIRT1. Moreover, SIRT1 promoted mitophagy via the Pink1/Parkin pathway activation. Furthermore, inhibition of mitophagy reversed the anti-ferroptotic effects of SIRT1, confirming their functional interplay. Conclusions SIRT1, negatively regulated by miR-181c-5p, mitigates CKD-associated VC by suppressing ferroptosis and activating Pink1/Parkin-dependent mitophagy in VSMCs, highlighting a potential therapeutic axis for vascular protection in CKD. Clinical trial registration number Not applicable.
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