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Ji Y, Liu H, Niu F, Kang B, Luo X, Yang H, Tian Z, Yang J. Endoplasmic Reticulum Stress Promotes Neuronal Damage in Neonatal Hypoxic-Ischemic Brain Damage by Inducing Ferroptosis. Mol Biotechnol 2024:10.1007/s12033-024-01095-9. [PMID: 38329706 DOI: 10.1007/s12033-024-01095-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 01/17/2024] [Indexed: 02/09/2024]
Abstract
Hypoxic-ischemic brain damage (HIBD) poses a significant risk of neurological damage in newborns. This study investigates the impact of endoplasmic reticulum stress (ERS) on neuronal damage in neonatal HIBD and its underlying mechanisms. HIBD neonatal rat model was constructed and pre-treated with 4-phenylbutiric acid (4-PBA). Nissl and TUNEL staining were utilised to assess neuronal damage and apoptosis in rat brains. HIBD cell model was established by inducing oxygen-glucose deprivation (OGD) in rat H19-7 neurons, which were then pre-treated with Thapsigargin (TG), Ferrostatin-1 (Fer-1), or both. Cell viability and apoptosis of H19-7 neurons were analysed using cell counting kit-8 assay and TUNEL staining. GRP78-PERK-CHOP pathway activity and glutathione peroxidase-4 (GPX4) expression in rat brains and H19-7 neurons were assessed using Western blot. Ferroptosis-related indicators, including glutathione (GSH), superoxide dismutase (SOD), malondialdehyde (MDA) and iron content, were measured using commercial kits in both rat brains and H19-7 neurons. GRP78-PERK-CHOP pathway was overactivated in HIBD neonatal rats' brains, which was mitigated by 4-PBA treatment. 4-PBA treatment demonstrated a reduction in neuronal damage and apoptosis in HIBD-affected neonatal rat brains. Furthermore, it attenuated ferroptosis in rats by increasing GPX4, GSH and SOD while decreasing MDA and iron content. In the OGD-induced H19-7 neurons, Fer-1 treatment counteracted the suppressive effects of TG on viability, the exacerbation of apoptosis, the promotion of ferroptosis and the activation of the GRP78-PERK-CHOP pathway. Overall, ERS facilitates neuronal damage in neonatal HIBD by inducing ferroptosis. Consequently, the suppression of ERS may represent a promising therapeutic strategy for treating neonatal HIBD.
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Affiliation(s)
- Yongjia Ji
- Peking University First Hospital Ningxia Women and Children's Hospital (Ningxia Hui Autonomous Region Maternal and Child Health Hospital), 127 Hupan Road, Jinfeng District, Yinchuan City, Ningxia, 750001, China.
| | - Huili Liu
- Peking University First Hospital Ningxia Women and Children's Hospital (Ningxia Hui Autonomous Region Maternal and Child Health Hospital), 127 Hupan Road, Jinfeng District, Yinchuan City, Ningxia, 750001, China
| | - Fang Niu
- Peking University First Hospital Ningxia Women and Children's Hospital (Ningxia Hui Autonomous Region Maternal and Child Health Hospital), 127 Hupan Road, Jinfeng District, Yinchuan City, Ningxia, 750001, China
| | - Bo Kang
- Peking University First Hospital Ningxia Women and Children's Hospital (Ningxia Hui Autonomous Region Maternal and Child Health Hospital), 127 Hupan Road, Jinfeng District, Yinchuan City, Ningxia, 750001, China
| | - Xiu Luo
- Peking University First Hospital Ningxia Women and Children's Hospital (Ningxia Hui Autonomous Region Maternal and Child Health Hospital), 127 Hupan Road, Jinfeng District, Yinchuan City, Ningxia, 750001, China
| | - Hua Yang
- Peking University First Hospital Ningxia Women and Children's Hospital (Ningxia Hui Autonomous Region Maternal and Child Health Hospital), 127 Hupan Road, Jinfeng District, Yinchuan City, Ningxia, 750001, China
| | - Zhen Tian
- Peking University First Hospital Ningxia Women and Children's Hospital (Ningxia Hui Autonomous Region Maternal and Child Health Hospital), 127 Hupan Road, Jinfeng District, Yinchuan City, Ningxia, 750001, China
| | - Juan Yang
- Peking University First Hospital Ningxia Women and Children's Hospital (Ningxia Hui Autonomous Region Maternal and Child Health Hospital), 127 Hupan Road, Jinfeng District, Yinchuan City, Ningxia, 750001, China
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Topical Application of Fibroblast Growth Factor 10-PLGA Microsphere Accelerates Wound Healing via Inhibition of ER Stress. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:8586314. [PMID: 33354279 PMCID: PMC7735840 DOI: 10.1155/2020/8586314] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 10/20/2020] [Accepted: 11/09/2020] [Indexed: 12/16/2022]
Abstract
There is a high incidence of acute and chronic skin defects caused by various reasons in clinically practice. The repair and functional reconstruction of skin defects have become a major clinical problem, which needs to be solved urgently. Previous studies have shown that fibroblast growth factor 10 (FGF10) plays a functional role in promoting the proliferation, migration, and differentiation of epithelial cells. However, little is known about the effect of FGF10 on the recovery process after skin damage. In this study, we found that the expression of endogenous FGF10 was increased during wound healing. We prepared FGF10-loaded poly(lactic-co-glycolic acid) (FGF10-PLGA) microspheres, and it could sustain release of FGF10 both in vitro and in vivo, accelerating wound healing. Further analysis revealed that compared with FGF10 alone, FGF10-PLGA microspheres significantly improved granulation formation, collagen synthesis, cell proliferation, and blood vessel density. In the meantime, we found that FGF10-PLGA microspheres inhibited the expression of endoplasmic reticulum (ER) stress markers. Notably, activating ER stress with tunicamycin (TM) reduced therapeutic effects of FGF10-PLGA microspheres in wound healing, whereas inhibition of ER stress with 4-phenyl butyric acid (4-PBA) improved the function of FGF10-PLGA microspheres. Taken together, this study indicates that FGF10-PLGA microspheres accelerate wound healing presumably through modulating ER stress.
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Fang M, Yuan J, Jiang S, Hu Y, Pan S, Zhu J, Fu X, Jiang H, Lin J, Li P, Lin Z. Dl-3-n-butylphthalide attenuates hypoxic-ischemic brain injury through inhibiting endoplasmic reticulum stress-induced cell apoptosis and alleviating blood-brain barrier disruption in newborn rats. Brain Res 2020; 1747:147046. [PMID: 32763236 DOI: 10.1016/j.brainres.2020.147046] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 07/19/2020] [Accepted: 08/01/2020] [Indexed: 12/09/2022]
Abstract
Dl-3-n-butylphthalide (NBP) has been demonstrated to exert neuroprotective effects in experimental models and human patients. This study was performed to assess the therapeutic effects and the underlying molecular mechanisms of NBP in a neonatal hypoxic-ischemic rat model. The results showed that NBP treatment significantly reduced the infarct volume, improved histological recovery, decreased neuronal cell loss, enhanced neuronal cell rehabilitation, promoted neurite growth and decreased white matter injury. In addition, NBP treatment effectively improved long-term neurobehavioral development and prognosis after HI injury. We further demonstrated an inhibitory effect of NBP on endoplasmic reticulum (ER) stress-induced apoptosis, evidenced by reduction in ER stress-related protein expressions (GRP78, XBP-1, PDI and CHOP), decrease in TUNEL-positive cells, down-regulation in pro-apoptosis protein (Bax and cleaved caspase-3), up-regulation in anti-apoptosis protein (Bcl-2). Moreover, NBP exerted a protective effect in blood-brain barrier disruption, which ameliorated brain edema and reduced the degeneration of the tight junction proteins (Occludin and Claudin-5) and adherens junction proteins (P120-Catenin, VE-Cadherin and β-Catenin). Overall, our findings demonstrated that NBP treatment attenuated HI brain injury through inhibiting ER stress-induced apoptosis and alleviating blood-brain barrier disruption in newborn rats. This work provides an effective therapeutic strategy to reduce brain damage and enhance recovery after neonatal HI brain injury.
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Affiliation(s)
- Mingchu Fang
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Junhui Yuan
- Department of Neonatology, Wenling Maternal and Child Health Care Hospital, Wenling, Zhejiang 317500, China
| | - Shishuang Jiang
- School of Nursing, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Yingying Hu
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Shulin Pan
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Jianghu Zhu
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Xiaoqin Fu
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Huai Jiang
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Jian Lin
- Department of Neurosurgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Peijun Li
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China
| | - Zhenlang Lin
- Department of Neonatology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China; Department of Neonatology, Taizhou Maternal and Child Health Care Hospital of Wenzhou Medical University, Taizhou, Zhejiang 318000, China.
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Ma AG, Yu LM, Zhao H, Qin CW, Tian XY, Wang Q. PSMD4 regulates the malignancy of esophageal cancer cells by suppressing endoplasmic reticulum stress. Kaohsiung J Med Sci 2019; 35:591-597. [PMID: 31162820 DOI: 10.1002/kjm2.12093] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 05/09/2019] [Indexed: 12/28/2022] Open
Abstract
Proteasome 26S subunit non-ATPase 4 (PSMD4) is an important proteasome ubiquitin receptor and plays a key role in endoplasmic reticulum stress (ERS). However, the study of PSMD4 in esophageal cancer (EC) is relatively rare. Here, we found that the expression of PSMD4 was markedly enhanced in EC tissues and cell lines. The cell counting kit-8 (CCK-8) assay showed that overexpression of PSMD4 significantly enhanced Eca109 cell viability, while inhibition of PSMD4 reduced Eca109 cell viability. Knockdown of PSMD4 induced Eca109 cell apoptosis and cell cycle arrest. More importantly, knockdown of PSMD4 significantly enhanced the expression of glucose regulated protein 78, activating transcription factor 6, and p-protein kinase R-like ER kinase, indicating an enhanced ERS response in esophageal cancer cells. Compared with the control cells, brefeldin A significantly inhibited the expression of PSMD4 and increased the expression of p53-upregulated modulator of apoptosis. However, such effects were largely reversed after overexpressing PSMD4 in Eca109 cells, suggesting that silencing PSMD4 could enhance ERS-induced cell apoptosis. In summary, upregulation of PSMD4 promoted the progression of esophageal cancer mainly by reducing ERS-induced cell apoptosis.
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Affiliation(s)
- Ai-Guo Ma
- Department of Thoracic Surgery, Tengzhou Central People's Hospital, Tengzhou City, Shandong Province, PR China
| | - Li-Mei Yu
- Department of Critical Care Medicine, Tengzhou Central People's Hospital, Tengzhou City, Shandong Province, PR China
| | - Hong Zhao
- Department of Thoracic Surgery, Tengzhou Central People's Hospital, Tengzhou City, Shandong Province, PR China
| | - Cun-Wei Qin
- Department of Thoracic Surgery, Tengzhou Central People's Hospital, Tengzhou City, Shandong Province, PR China
| | - Xiang-Yu Tian
- Imaging Center, Tengzhou Central People's Hospital, Tengzhou City, Shandong Province, PR China
| | - Qing Wang
- Department of Thoracic Surgery, Tengzhou Central People's Hospital, Tengzhou City, Shandong Province, PR China
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Ren H, Tao H, Gao Q, Shen W, Niu Z, Zhang J, Mao H, Du A, Li W. MiR-326 antagomir delays the progression of age-related cataract by upregulating FGF1-mediated expression of betaB2-crystallin. Biochem Biophys Res Commun 2018; 505:505-510. [PMID: 30268497 DOI: 10.1016/j.bbrc.2018.09.049] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Accepted: 09/08/2018] [Indexed: 12/12/2022]
Abstract
Age-related cataract, the most common cause of blindness worldwide, has been found closely associated with β-crystallin B2 (βB2 or CRYBB2). MicroRNAs (miRNAs) are the primary epigenetic regulators important for various biological processes. However, the role of miRNAs in the progression of lens cataract remains to be elucidated. In this study, we found a novel signal cascade miR-326-fibroblast growth factor 1 (FGF1)-βB2 modulating the progression of lens cataract. In brief, miR-326 exacerbated but its antagomirs attenuated H2O2-induced apoptosis of HLEC-B3 human lens epithelial cells. Dual-luciferase reporter assay and Western blot showed that miR-326 inhibited FGF1 expression by directly targeting its mRNA 3'-UTR. Consistent with this result, miR-326 antagomir enhanced FGF1 protein level. In addition to FGF1, miR-326 antagomir also enhanced βB2 expression and this enhancement was abolished by transfection of HLEC-B3 cells with FGF1 shRNA. These data demonstrated that miR-326 antagomir increased βB2 expression via upregulating FGF1, which was further confirmed by the studies in a rat model of selenite-induced cataract. This work suggests that miR-326 antagomir might be a promising candidate to prevent progression of age-related cataract.
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Affiliation(s)
- Hanxiao Ren
- Department of Laboratory Diagnosis, Changhai Hospital, The Second Military Medical University, Shanghai 200433, China; Department of Clinical Laboratory, The Second Hospital of Shandong University, Shandong 250033, China
| | - Haibo Tao
- Department of Laboratory Diagnosis, Changhai Hospital, The Second Military Medical University, Shanghai 200433, China; Department of Laboratory Diagnosis, East Hospital of Shanghai, Shanghai 200120, China
| | - Qian Gao
- Department of Laboratory Diagnosis, Changhai Hospital, The Second Military Medical University, Shanghai 200433, China
| | - Wei Shen
- Department of Ophthalmology, Changhai Hospital, The Second Military Medical University, Shanghai 200433, China
| | - Ziguang Niu
- Department of Laboratory Diagnosis, Changhai Hospital, The Second Military Medical University, Shanghai 200433, China
| | - Junjie Zhang
- Department of Gynaecology and Obstetrics, Changhai Hospital, The Second Military Medical University, Shanghai 200433, China
| | - Haiting Mao
- Department of Clinical Laboratory, The Second Hospital of Shandong University, Shandong 250033, China.
| | - Aiying Du
- Interdisciplinary Research Center on Biology and Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 201210, China.
| | - Wenjie Li
- Department of Laboratory Diagnosis, Changhai Hospital, The Second Military Medical University, Shanghai 200433, China.
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Sun W, Yang J, Zhang Y, Xi Y, Wen X, Yuan D, Wang Y, Wei C, Wang R, Wu L, Li H, Xu C. Exogenous H 2S restores ischemic post-conditioning-induced cardioprotection through inhibiting endoplasmic reticulum stress in the aged cardiomyocytes. Cell Biosci 2017; 7:67. [PMID: 29238517 PMCID: PMC5725883 DOI: 10.1186/s13578-017-0196-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 12/03/2017] [Indexed: 01/25/2023] Open
Abstract
Background A gasotransmitter hydrogen sulfide (H2S) plays an important physiological and pathological role in cardiovascular system. Ischemic post-conditioning (PC) provides cardioprotection in the young hearts but not in the aged hearts. Exogenous H2S restores PC-induced cardioprotection by inhibition of mitochondrial permeability transition pore opening and oxidative stress and increase of autophagy in the aged hearts. However, whether H2S contributes to the recovery of PC-induced cardioprotection via down-regulation of endoplasmic reticulum stress (ERS) in the aged hearts is unclear. Methods The aged H9C2 cells (the cardiomyocytes line) were induced using H2O2 and were exposed to H/R and PC protocols. Cell viability was observed by CCK-8 kit. Apoptosis was detected by Hoechst 33342 staining and flow cytometry. Related protein expressions were detected through Western blot. Results In the present study, we found that 30 μM H2O2 induced H9C2 cells senescence but not apoptosis. Supplementation of NaHS protected against H/R-induced apoptosis, the expression of cleaved caspase-3 and cleaved caspase-9 and the release of cytochrome c. The addition of NaHS also counteracted the reduction of cell viability caused by H/R and decreased the expression of GRP 78, CHOP, cleaved caspase-12, ATF 4, ATF 6 and XBP-1 and the phosphorylation of PERK, eIF 2α and IRE 1α. Additionally, NaHS increased Bcl-2 expression. PC alone did not provide cardioprotection in H/R-treated aged cardiomyocytes, which was significantly restored by the supplementation of NaHS. The beneficial role of NaHS was similar to the supply of 4-PBA (an inhibitor of ERS), GSK2656157 (an inhibitor of PERK), STF083010 (an inhibitor of IRE 1α), respectively, during PC. Conclusion Our results suggest that the recovery of myocardial protection from PC by exogenous H2S is associated with the inhibition of ERS via down-regulating PERK-eIF 2α-ATF 4, IRE 1α-XBP-1 and ATF 6 pathways in the aged cardiomyocytes.
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Affiliation(s)
- Weiming Sun
- Department of Pathophysiology, Harbin Medical University, Baojian Road, Harbin, 150081 China.,The Key Laboratory of Cardiovascular Medicine Research (Harbin Medical University), Ministry of Education, Harbin, China
| | - Jinxia Yang
- Department of Pathophysiology, Harbin Medical University, Baojian Road, Harbin, 150081 China.,Department of Pathology, Daqing Medical College, Daqing, China
| | - Yuanzhou Zhang
- Department of Pathophysiology, Harbin Medical University, Baojian Road, Harbin, 150081 China.,The Key Laboratory of Cardiovascular Medicine Research (Harbin Medical University), Ministry of Education, Harbin, China
| | - Yuxin Xi
- Department of Pathophysiology, Harbin Medical University, Baojian Road, Harbin, 150081 China.,The Key Laboratory of Cardiovascular Medicine Research (Harbin Medical University), Ministry of Education, Harbin, China
| | - Xin Wen
- Department of Pathophysiology, Harbin Medical University, Baojian Road, Harbin, 150081 China.,The Key Laboratory of Cardiovascular Medicine Research (Harbin Medical University), Ministry of Education, Harbin, China
| | - Di Yuan
- Department of Pathophysiology, Harbin Medical University, Baojian Road, Harbin, 150081 China.,The Key Laboratory of Cardiovascular Medicine Research (Harbin Medical University), Ministry of Education, Harbin, China
| | - Yuehong Wang
- Department of Pathophysiology, Harbin Medical University, Baojian Road, Harbin, 150081 China.,The Key Laboratory of Cardiovascular Medicine Research (Harbin Medical University), Ministry of Education, Harbin, China
| | - Can Wei
- Department of Pathophysiology, Harbin Medical University, Baojian Road, Harbin, 150081 China.,The Key Laboratory of Cardiovascular Medicine Research (Harbin Medical University), Ministry of Education, Harbin, China
| | - Rui Wang
- The Cardiovascular and Metabolic Research Unit, Laurentian University, Sudbury, Canada
| | - Lingyun Wu
- The Cardiovascular and Metabolic Research Unit, Laurentian University, Sudbury, Canada
| | - Hongzhu Li
- Department of Pathophysiology, Harbin Medical University, Baojian Road, Harbin, 150081 China.,The Key Laboratory of Cardiovascular Medicine Research (Harbin Medical University), Ministry of Education, Harbin, China
| | - Changqing Xu
- Department of Pathophysiology, Harbin Medical University, Baojian Road, Harbin, 150081 China.,The Key Laboratory of Cardiovascular Medicine Research (Harbin Medical University), Ministry of Education, Harbin, China
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Oxidative stress and endoplasmic reticulum (ER) stress in the development of neonatal hypoxic-ischaemic brain injury. Biochem Soc Trans 2017; 45:1067-1076. [PMID: 28939695 PMCID: PMC5652227 DOI: 10.1042/bst20170017] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 08/09/2017] [Accepted: 08/11/2017] [Indexed: 02/06/2023]
Abstract
Birth asphyxia in term neonates affects 1–2/1000 live births and results in the development of hypoxic–ischaemic encephalopathy with devastating life-long consequences. The majority of neuronal cell death occurs with a delay, providing the potential of a treatment window within which to act. Currently, treatment options are limited to therapeutic hypothermia which is not universally successful. To identify new interventions, we need to understand the molecular mechanisms underlying the injury. Here, we provide an overview of the contribution of both oxidative stress and endoplasmic reticulum stress in the development of neonatal brain injury and identify current preclinical therapeutic strategies.
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