1
|
Wu Q, Zhu J, Zhang X, Xu X, Luo D, Lin Y, Yan M, Song Y. The antioxidant effect of tetrahedral framework nucleic acid-based delivery of small activating RNA targeting DJ-1 on retinal oxidative stress injury. Cell Prolif 2024:e13635. [PMID: 38594962 DOI: 10.1111/cpr.13635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/07/2024] [Accepted: 03/12/2024] [Indexed: 04/11/2024] Open
Abstract
Age-related macular degeneration (AMD) and diabetic retinopathy (DR) are the world's leading causes of blindness. The retinal pigment epithelium (RPE) and vascular endothelial cell exposed to oxidative stress is the major cause of AMD and DR. DJ-1, an important endogenous antioxidant, its overexpression is considered as a promising antioxidant treatment for AMD and DR. Here, we modified the tetrahedral frame nucleic acids (tFNAs) with DJ-1 saRNAs as a delivery system, and synthesized a novel nanocomplex (tFNAs-DJ-1 saRNAs). In vitro studies show that tFNAs-DJ-1 saRNAs can efficiently transfer DJ-1 saRNAs to human umbilical vein endothelial cells (HUVECs) and ARPE-19s, and significantly increased their cellular DJ-1 level. Reactive oxygen species expression in H2O2-treated HUVECs and ARPE-19s were decreased, cell viability was enhanced and cell apoptosis were inhibited when tFNAs-DJ-1 saRNAs were delivered. Moreover, tFNAs-DJ-1 saRNAs preserved mitochondrial structure and function under oxidative stress conditions. In the aspect of molecular mechanism, tFNAs-DJ-1 saRNAs activated Erk and Nrf2 pathway, which might contribute to its protective effects against oxidative stress damage. To conclude, this study shows the successfully establishment of a simple but effective delivery system of DJ-1 saRNAs associated with antioxidant effects in AMD and DR, which may be a promising agent for future treatment in oxidative stress-related retinal disorders.
Collapse
Affiliation(s)
- Qiaowei Wu
- Department of Ophthalmology, General Hospital of Central Theater Command, Wuhan, China
| | - Jingyi Zhu
- Department of Ophthalmology, General Hospital of Central Theater Command, Wuhan, China
| | - Xianggui Zhang
- Department of Ophthalmology, General Hospital of Central Theater Command, Wuhan, China
| | - Xiaoxiao Xu
- Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Delun Luo
- Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yunfeng Lin
- Department of Maxillofacial Surgery, State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Chengdu, China
| | - Ming Yan
- Department of Ophthalmology, General Hospital of Central Theater Command, Wuhan, China
| | - Yanping Song
- Department of Ophthalmology, General Hospital of Central Theater Command, Wuhan, China
| |
Collapse
|
2
|
Zhang Y, Xu M, He H, Ren S, Chen X, Zhang Y, An J, Ren X, Zhang X, Zhang M, Liu Z, Li X. Proteomic analysis of aqueous humor reveals novel regulators of diabetic macular edema. Exp Eye Res 2024; 239:109724. [PMID: 37981180 DOI: 10.1016/j.exer.2023.109724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 10/19/2023] [Accepted: 11/07/2023] [Indexed: 11/21/2023]
Abstract
Diabetic macular edema (DME) is the most common cause of blindness in patients with diabetic retinopathy. To investigate the proteomic profiles of the aqueous humor (AH) of individuals with diabetic macular edema (DME), AH samples were collected from patients with non-diabetes mellitus (NDM), DM, nonproliferative diabetic retinopathy (NPDR), and DME. We performed comparative proteomic analyses using liquid chromatography-tandem mass spectrometry (LC-MS/MS) and bioinformatics analyses. We identified 425 proteins in these AH samples, of which 113 showed changes in expression in DME compared with NDM, 95 showed changes in expression in DME vs. DM, and 84 showed changes in expression in DME compared with NPDR. The bioinformatics analysis suggested that DME is closely associated with platelet degranulation, oxidative stress-related pathway, and vascular-related pathways. Upregulation of haptoglobin (HP) and downregulation of fibrillin 1 (FBN1) were validated by ELISA. Receiver operating characteristic (ROC) analysis showed that HP and FBN1 could distinguish DME from NPDR with areas under the curve of 0.987 (p = 0.00608) and 0.791 (p = 0.00629), respectively. The findings provide potential clues for further analysis of the molecular mechanisms and the development of new treatments for DME. HP and FBN1 may be potential key proteins and therapeutic targets in human DME. The proteomics dataset generated has been deposited to the ProteomeXchange/iProX Consortium with Identifier: PXD033404/IPX0004353001.
Collapse
Affiliation(s)
- Yue Zhang
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China; Hebei Provincial Key Laboratory of Ophthalmology, Hebei Provincial Eye Institute, Hebei Provincial Eye Hospital, Xiangtai, Hebei, China
| | - Manhong Xu
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Hongbo He
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Shaojie Ren
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Xin Chen
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Yan Zhang
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Jinying An
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Xinjun Ren
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Xiaomin Zhang
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Minglian Zhang
- Hebei Provincial Key Laboratory of Ophthalmology, Hebei Provincial Eye Institute, Hebei Provincial Eye Hospital, Xiangtai, Hebei, China
| | - Zhiqiang Liu
- Hebei Provincial Key Laboratory of Ophthalmology, Hebei Provincial Eye Institute, Hebei Provincial Eye Hospital, Xiangtai, Hebei, China.
| | - Xiaorong Li
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China.
| |
Collapse
|
3
|
Ouyang L, He T, Xing Y. Park7 protects retinal ganglion cells and promotes functional preservation after optic nerve crush via regulation of the Nrf2 signaling pathway. Graefes Arch Clin Exp Ophthalmol 2023; 261:3489-3502. [PMID: 37199801 DOI: 10.1007/s00417-023-06099-w] [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: 02/09/2023] [Revised: 04/19/2023] [Accepted: 05/02/2023] [Indexed: 05/19/2023] Open
Abstract
PURPOSE We aim to investigate the effect of Park7 on mice RGC survival and function following optic nerve crush (ONC), and to explore its potential mechanism. METHODS Wild-type male C57BL/6J mice were subjected to optic nerve crush. Six weeks before ONC, mice received rAAV-shRNA (Park7)-EGFP or rAAV-EGFP intravitreally. Western blotting was used to detect Park7 levels. RGC survival was measured using immunofluorescence. Retinal cell apoptosis was detected using terminal deoxynucleotidyl transferase nick-end-labelling. An electroretinogram (ERG) and the optomotor response (OMR) were used to assess RGC function. Kelch-like ECH-associated protein 1 (Keap1), nuclear factor erythroid 2-related factor (Nrf2), and heme oxygenase 1 (HO-1) levels were assessed using western blotting. RESULTS ONC injury increased the relative expression of Park7 significantly and decreased RGC survival, the amplitude of the photopic negative response (PhNR), and OMR. Intravitreal injection of rAAV-shRNA(Park7)-EGFP downregulated Park7 expression and was clearly demonstrated by the green fluorescence protein in many retinal layers. Moreover, Park7 downregulation aggravated the decrease in RGC survival and amplitude of PhNR as well as the visual acuity after ONC. However, inhibition of Park7 significantly increased Keap1 levels, decreased the total and nuclear Nrf2 levels, and reduced HO-1 levels. CONCLUSIONS Park7 downregulation enhanced RGC injury and decreased retinal electrophysiological response and OMR after ONC in mice via the Keap1-Nrf2-HO-1 signaling pathway. Park7 may have neuroprotective effects and could represent a novel way to treat optic neuropathy.
Collapse
Affiliation(s)
- Lingyi Ouyang
- Department of Ophthalmology, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, Hubei, China
| | - Tao He
- Department of Ophthalmology, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, Hubei, China
| | - Yiqiao Xing
- Department of Ophthalmology, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, Hubei, China.
| |
Collapse
|
4
|
Li J, Chen K, Li X, Zhang X, Zhang L, Yang Q, Xia Y, Xie C, Wang X, Tong J, Shen Y. Mechanistic insights into the alterations and regulation of the AKT signaling pathway in diabetic retinopathy. Cell Death Discov 2023; 9:418. [PMID: 37978169 PMCID: PMC10656479 DOI: 10.1038/s41420-023-01717-2] [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: 08/20/2023] [Revised: 11/05/2023] [Accepted: 11/08/2023] [Indexed: 11/19/2023] Open
Abstract
In the early stages of diabetic retinopathy (DR), diabetes-related hyperglycemia directly inhibits the AKT signaling pathway by increasing oxidative stress or inhibiting growth factor expression, which leads to retinal cell apoptosis, nerve proliferation and fundus microvascular disease. However, due to compensatory vascular hyperplasia in the late stage of DR, the vascular endothelial growth factor (VEGF)/phosphatidylinositol 3 kinase (PI3K)/AKT cascade is activated, resulting in opposite levels of AKT regulation compared with the early stage. Studies have shown that many factors, including insulin, insulin-like growth factor-1 (IGF-1), VEGF and others, can regulate the AKT pathway. Disruption of the insulin pathway decreases AKT activation. IGF-1 downregulation decreases the activation of AKT in DR, which abrogates the neuroprotective effect, upregulates VEGF expression and thus induces neovascularization. Although inhibiting VEGF is the main treatment for neovascularization in DR, excessive inhibition may lead to apoptosis in inner retinal neurons. AKT pathway substrates, including mammalian target of rapamycin (mTOR), forkhead box O (FOXO), glycogen synthase kinase-3 (GSK-3)/nuclear factor erythroid 2-related factor 2 (Nrf2), and nuclear factor kappa-B (NF-κB), are a research focus. mTOR inhibitors can delay or prevent retinal microangiopathy, whereas low mTOR activity can decrease retinal protein synthesis. Inactivated AKT fails to inhibit FOXO and thus causes apoptosis. The GSK-3/Nrf2 cascade regulates oxidation and inflammation in DR. NF-κB is activated in diabetic retinas and is involved in inflammation and apoptosis. Many pathways or vital activities, such as the Janus kinase (JAK)/signal transducer and activator of transcription (STAT) and mitogen-activated protein kinase (MAPK) signaling pathways, interact with the AKT pathway to influence DR development. Numerous regulatory methods can simultaneously impact the AKT pathway and other pathways, and it is essential to consider both the connections and interactions between these pathways. In this review, we summarize changes in the AKT signaling pathway in DR and targeted drugs based on these potential sites.
Collapse
Affiliation(s)
- Jiayuan Li
- Department of Ophthalmology, The First Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang, China
- Department of Cardiology, The Second Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang, China
| | - Kuangqi Chen
- Department of Ophthalmology, The First Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang, China
| | - Xiang Li
- Department of Ophthalmology, The First Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang, China
| | - Xuhong Zhang
- Department of Ophthalmology, The First Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang, China
| | - Liyue Zhang
- Department of Ophthalmology, The First Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang, China
| | - Qianjie Yang
- Department of Ophthalmology, The First Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang, China
| | - Yutong Xia
- Department of Ophthalmology, The First Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang, China
| | - Chen Xie
- Department of Ophthalmology, The First Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang, China
| | - Xiawei Wang
- Department of Ophthalmology, The First Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang, China
| | - Jianping Tong
- Department of Ophthalmology, The First Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang, China.
| | - Ye Shen
- Department of Ophthalmology, The First Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang, China.
| |
Collapse
|
5
|
Zhang X, Luo Z, Li J, Lin Y, Li Y, Li W. Sestrin2 in diabetes and diabetic complications. Front Endocrinol (Lausanne) 2023; 14:1274686. [PMID: 37920252 PMCID: PMC10619741 DOI: 10.3389/fendo.2023.1274686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 10/03/2023] [Indexed: 11/04/2023] Open
Abstract
Diabetes is a global health problem which is accompanied with multi-systemic complications. It is of great significance to elucidate the pathogenesis and to identify novel therapies of diabetes and diabetic complications. Sestrin2, a stress-inducible protein, is primarily involved in cellular responses to various stresses. It plays critical roles in regulating a series of cellular events, such as oxidative stress, mitochondrial function and endoplasmic reticulum stress. Researches investigating the correlations between Sestrin2, diabetes and diabetic complications are increasing in recent years. This review incorporates recent findings, demonstrates the diverse functions and regulating mechanisms of Sestrin2, and discusses the potential roles of Sestrin2 in the pathogenesis of diabetes and diabetic complications, hoping to highlight a promising therapeutic direction.
Collapse
Affiliation(s)
- Xiaodan Zhang
- Department of Endocrinology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zirui Luo
- The Second Clinical Medicine School, Guangzhou Medical University, Guangzhou, China
| | - Jiahong Li
- The Second Clinical Medicine School, Guangzhou Medical University, Guangzhou, China
| | - Yaxuan Lin
- The Second Clinical Medicine School, Guangzhou Medical University, Guangzhou, China
| | - Yu Li
- Department of Endocrinology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Wangen Li
- Department of Endocrinology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| |
Collapse
|
6
|
Ali FEM, Hassanein EHM, El-Bahrawy AH, Hemeda MS, Atwa AM. Neuroprotective effect of lansoprazole against cisplatin-induced brain toxicity: Role of Nrf2/ARE and Akt/P53 signaling pathways. J Chem Neuroanat 2023; 132:102299. [PMID: 37271475 DOI: 10.1016/j.jchemneu.2023.102299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 05/30/2023] [Accepted: 06/01/2023] [Indexed: 06/06/2023]
Abstract
Cisplatin is a chemotherapeutic agent usually used in treating different patterns of malignancies. One of the significant apparent complications of cisplatin chemotherapy is brain toxicity. The present study was conducted to evaluate the protective effects of lansoprazole on cisplatin-induced cortical intoxication. Thirty-two rats were allocated into four groups (8 rats/group); group I: received only a vehicle for 10 days, group II: lansoprazole was administered (50 mg/kg) via oral gavage for 10 days, group III: On 5th day of the experiment, rats were given cisplatin (10 mg/kg) i.p. once to induce cortical injury. Group IV: rats were given lansoprazole for 5 days before cisplatin and 5 days afterward. Lansoprazole administration significantly improved cisplatin-induced behavioral changes, as evidenced by decreasing the immobility time in forced swimming and open field tests. Besides, lansoprazole improved cortical histological changes, restored cortical redox balance, enhanced Nrf2/ARE expression, cisplatin-induced neuronal apoptosis, and dampened cisplatin inflammation. In addition, lansoprazole modulated cortical Akt/p53 signal. The present work was the first to show that lansoprazole co-administration reduced cortical toxicity in cisplatin-treated rats via multiple signaling pathways. The current findings provided crucial information for developing novel protective strategies to reduce cisplatin cortical toxicity.
Collapse
Affiliation(s)
- Fares E M Ali
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Assiut 71524, Egypt.
| | - Emad H M Hassanein
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Assiut 71524, Egypt
| | - Ali H El-Bahrawy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Assiut 71524, Egypt
| | - Mohamed S Hemeda
- Department of Forensic Medicine and Clinical Toxicology, Faculty of Medicine, Port Said University, Port Said, Egypt
| | - Ahmed M Atwa
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Egyptian Russian University, Cairo, Egypt
| |
Collapse
|
7
|
Casciano F, Zauli E, Busin M, Caruso L, AlMesfer S, Al-Swailem S, Zauli G, Yu AC. State of the Art of Pharmacological Activators of p53 in Ocular Malignancies. Cancers (Basel) 2023; 15:3593. [PMID: 37509256 PMCID: PMC10377487 DOI: 10.3390/cancers15143593] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 06/29/2023] [Accepted: 07/07/2023] [Indexed: 07/30/2023] Open
Abstract
The pivotal role of p53 in the regulation of a vast array of cellular functions has been the subject of extensive research. The biological activity of p53 is not strictly limited to cell cycle arrest but also includes the regulation of homeostasis, DNA repair, apoptosis, and senescence. Thus, mutations in the p53 gene with loss of function represent one of the major mechanisms for cancer development. As expected, due to its key role, p53 is expressed throughout the human body including the eye. Specifically, altered p53 signaling pathways have been implicated in the development of conjunctival and corneal tumors, retinoblastoma, uveal melanoma, and intraocular melanoma. As non-selective cancer chemotherapies as well as ionizing radiation can be associated with either poor efficacy or dose-limiting toxicities in the eye, reconstitution of the p53 signaling pathway currently represents an attractive target for cancer therapy. The present review discusses the role of p53 in the pathogenesis of these ocular tumors and outlines the various pharmacological activators of p53 that are currently under investigation for the treatment of ocular malignancies.
Collapse
Affiliation(s)
- Fabio Casciano
- Department of Translational Medicine and LTTA Centre, University of Ferrara, 44121 Ferrara, Italy
| | - Enrico Zauli
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy
| | - Massimo Busin
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy
- Department of Ophthalmology, Ospedali Privati Forlì "Villa Igea", 47122 Forlì, Italy
- Istituto Internazionale per la Ricerca e Formazione in Oftalmologia (IRFO), 47122 Forlì, Italy
| | - Lorenzo Caruso
- Department of Environmental and Prevention Sciences, University of Ferrara, 44121 Ferrara, Italy
| | - Saleh AlMesfer
- Research Department, King Khaled Eye Specialistic Hospital, Riyadh 12329, Saudi Arabia
| | - Samar Al-Swailem
- Research Department, King Khaled Eye Specialistic Hospital, Riyadh 12329, Saudi Arabia
| | - Giorgio Zauli
- Research Department, King Khaled Eye Specialistic Hospital, Riyadh 12329, Saudi Arabia
| | - Angeli Christy Yu
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy
- Department of Ophthalmology, Ospedali Privati Forlì "Villa Igea", 47122 Forlì, Italy
- Istituto Internazionale per la Ricerca e Formazione in Oftalmologia (IRFO), 47122 Forlì, Italy
| |
Collapse
|
8
|
Overexpressed miRNA-nov-1 promotes manganese-induced apoptosis in N27 cells by regulating Dhrs3 to activate mTOR signaling pathway. Toxicology 2023; 489:153472. [PMID: 36868551 DOI: 10.1016/j.tox.2023.153472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 02/20/2023] [Accepted: 02/28/2023] [Indexed: 03/05/2023]
Abstract
Environmental and occupational chronic manganese exposure can cause neurotoxicity and apoptosis. Moreover, microRNAs (miRNAs) are extensively involved in the process of neuronal apoptosis. Therefore, it is crucial to study the mechanism of miRNA in manganese-induced neuronal apoptosis and to find potential targets. In the present study, we found that the expression of miRNA-nov-1 was increased after N27 cells were exposed to MnCl2. Then, seven different cell groups were constructed by lentiviral infection of cells, and the overexpression of miRNA-nov-1 promoted the apoptosis process of N27 cells. Further studies showed a negative regulatory relationship between miRNA-nov-1 and dehydrogenase/reductase 3 (Dhrs3). The up-regulation of miRNA-nov-1 reduced the protein level of Dhrs3 in N27 cells exposed to manganese, increased the expression of a caspase-3 protein, activated the rapamycin (mTOR) signaling pathway, and increased cell apoptosis. Furthermore, we found that the expression of the Caspase-3 protein was decreased after the low expression of miRNA-nov-1, the mTOR signaling pathway was inhibited, and reduced cell apoptosis. However, these effects were reversed by the knockdown of Dhrs3. Taken together, these results suggested that overexpression of miRNA-nov-1 can promote manganese-induced apoptosis in N27 cells by activating the mTOR signaling pathway and negatively regulating Dhrs3.
Collapse
|
9
|
Lu Y, Zhang Y, Xu D, Wang Y, Pan D, Wang P, Xia J, Yin S, Liao W, Wang S, Sun G. Tocotrienol-Rich Fractions Offer Potential to Suppress Pulmonary Fibrosis Progression. Int J Mol Sci 2022; 23:ijms232214331. [PMID: 36430808 PMCID: PMC9693363 DOI: 10.3390/ijms232214331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 10/26/2022] [Accepted: 11/15/2022] [Indexed: 11/22/2022] Open
Abstract
Although pulmonary fibrosis (PF) is considered a rare disease, the incidence thereof has increased steadily in recent years, while a safe and effective cure remains beyond reach. In this study, the potential of tocotrienol-rich fractions (TRF) and carotene to alleviate PF was explored. PF was induced in Sprague-Dawley rats via a single intratracheal bleomycin (BLM) (5 mg/kg) instillation. These rats were subsequently treated with TRF, carotene, pirfenidone (Pir) and nintedanib (Nin) for 28 days via gavage administration, whereafter histopathological performance, biochemical functions and molecular alterations were studied in the lung tissues. Our results showed that TRF, carotene, Nin and Pir all ameliorated PF by reducing inflammation and resisting oxidative stress to varying degrees. The related mechanisms involved the TGF-β1/Smad, PI3K/Akt and NF-κB signaling pathways. Ultimately, our findings revealed that, when combined with TRF, the therapeutic effects of Nin and Pir on PF were enhanced, indicating that TRF may, indeed, provide promising potential for use in combination therapy in the treatment of PF.
Collapse
|
10
|
Neural stem cell secretome exerts a protective effect on damaged neuron mitochondria in Parkinson's disease model. Brain Res 2022; 1790:147978. [PMID: 35690143 DOI: 10.1016/j.brainres.2022.147978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 05/29/2022] [Accepted: 06/06/2022] [Indexed: 11/22/2022]
Abstract
Parkinson's disease (PD) is a common neurodegenerative disease. The main pathological changes are the loss of dopaminergic neurons and the formation of Lewy bodies. There is still no effective cure for PD, and cell replacement therapy has entered a bottleneck period due to tumorigenicity and rejection. Therefore, stem cell secretome has received widespread attention. However, the exploration of the secretome components of neural stem cells (NSCs) is still in its infancy. In this study, 6-hydroxydopamine (6-OHDA) was used to establish a PD rat model in vito and the PC12 cell-damaged model in vitro. The results indicated that the injection of neural stem cell-conditioned medium (NSC-CM) into the striatum and substantia nigra could improve the motor and non-motor deficits of PD rats and rescue the loss of dopaminergic neurons. In addition, NSC-CM alleviated 6-OHDA-induced apoptosis of PC12 cells, reduced the level of oxidative stress, and improved mitochondrial dysfunction in vitro. Parkinson disease protein 7 (Park7) was found in NSC-CM by Liquid chromatography-tandem mass spectrometry (LC-MS/MS), and it may be related to the protective effect of NSC-CM on 6-OHDA-injured neurons through Sirt1 pathway. In conclusion, NSC secretome might provide new ideas for the treatment of PD.
Collapse
|
11
|
Alsemeh AE, Abdullah DM. Protective effect of alogliptin against cyclophosphamide-induced lung toxicity in rats: Impact on PI3K/Akt/FoxO1 pathway and downstream inflammatory cascades. Cell Tissue Res 2022; 388:417-438. [PMID: 35107620 PMCID: PMC9035424 DOI: 10.1007/s00441-022-03593-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 01/19/2022] [Indexed: 12/16/2022]
Abstract
Cyclophosphamide (CP)-induced lung toxicity is a remaining obstacle against the beneficial use of this chemotherapeutic agent. More considerations were given to the role of Alogliptin (ALO) in ameliorating CP-induced toxicities in many tissues. We designed this study to clarify the protective potential of ALO against CP-induced lung toxicity in rats. ALO was administered for 7 days. Single-dose CP was injected on the 2nd day (200 mg/kg: i.p.) to induce lung toxicity. Rats were divided into four groups: control, ALO-treated, CP-treated and ALO + CP-treated group. Leucocytic count, total proteins, LDH activity, TNF-α, and IL-6 were estimated in the bronchoalveolar lavage fluid (BALF). The oxidative/antioxidants (MDA, Nrf2, TAO and GSH), inflammatory (NFκB), fibrotic (TGF-β1) and apoptotic (PI3K/Akt/FoxO1) markers in pulmonary homogenates were biochemically evaluated. Rat lung sections were examined histologically (light and electron microscopic examination) and immunohistochemically (for iNOS and CD68 positive alveolar macrophages). CP significantly increased oxidative stress, inflammation, fibrosis, and apoptosis markers as well as deteriorated the histopathological pulmonary architecture. These hazardous effects were significantly ameliorated by ALO treatment. ALO protected against CP-induced lung toxicity by mitigating the oxidative, inflammatory and fibrotic impacts making it a promising pharmacological therapy for mitigating CP-induced lung toxicity.
Collapse
Affiliation(s)
- Amira Ebrahim Alsemeh
- Human Anatomy and Embryology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt.
| | - Doaa M Abdullah
- Clinical Pharmacology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt.
| |
Collapse
|
12
|
Zhong X, Xu P, Chen K, Yang D, Wang F, Ni H, Wu Y, Xia D, Ye J, Wu H. A novel lncRNA lnc-PPRL promotes pterygium development by activating PI3K/PDK1 signaling pathway. Exp Eye Res 2022; 219:109034. [PMID: 35304111 DOI: 10.1016/j.exer.2022.109034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 03/05/2022] [Accepted: 03/09/2022] [Indexed: 11/16/2022]
Abstract
A sight threatening, pterygium is a common proliferative and degenerative disease of the ocular surface. LncRNAs have been widely studied in the occurrence and development of various diseases, however, the study of lncRNAs in pterygium has just relatively lacking. In the present study, we performed the high-throughput RNA sequencing (HTS) technology to identify differentially expressed lncRNAs in pterygium. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses were carried out to forecast the regulatory and functional role of lncRNAs in pterygium. Notably, we identified a novel lncRNA, LOC102724238, which we named pterygium positively-related lncRNA (lnc-PPRL), was up-regulated in pterygium. Lnc-PPRL showed to be preferentially accumulated in cytoplasm, and it can promote cell proliferation, migration and invasion of human pterygium epithelium cells (hPECs). Further study of underlying mechanisms demonstrated that lnc-PPRL may exert its biological effect by activating canonical PI3K/PDK1 pathway, and subsequently promoting the activation of Akt/mTOR signaling pathway and its downstream effectors. Interestingly, lnc-PPRL was also proved to influence YAP nuclear localization. Taken together, our study firstly suggested that the "big molecule" lnc-PPRL have potential as a novel therapeutic target for the prevention and treatment of pterygium.
Collapse
Affiliation(s)
- Xincao Zhong
- Department of Ophthalmology, The Second Affiliated Hospital of Zhejiang University, College of Medicine, Hangzhou, Zhejiang, China
| | - Peifang Xu
- Department of Ophthalmology, The Second Affiliated Hospital of Zhejiang University, College of Medicine, Hangzhou, Zhejiang, China
| | - Kelie Chen
- Department of Toxicology of School of Public Health, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China; Department of Gynecologic Oncology of Women's Hospital of Zhejiang University, College of Medicine, Hangzhou, Zhejiang, China
| | - Dexin Yang
- Department of Toxicology of School of Public Health, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Fang Wang
- Department of Toxicology of School of Public Health, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Heng Ni
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhejiang University, College of Medicine, Hangzhou, Zhejiang, China
| | - Yihua Wu
- Department of Toxicology of School of Public Health, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China; Department of Gynecologic Oncology of Women's Hospital of Zhejiang University, College of Medicine, Hangzhou, Zhejiang, China
| | - Dajing Xia
- Department of Toxicology of School of Public Health, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China; Department of Gynecologic Oncology of Women's Hospital of Zhejiang University, College of Medicine, Hangzhou, Zhejiang, China
| | - Juan Ye
- Department of Ophthalmology, The Second Affiliated Hospital of Zhejiang University, College of Medicine, Hangzhou, Zhejiang, China.
| | - Han Wu
- Department of Ophthalmology, The Second Affiliated Hospital of Zhejiang University, College of Medicine, Hangzhou, Zhejiang, China.
| |
Collapse
|
13
|
Lu Y, Zhang Y, Pan Z, Yang C, Chen L, Wang Y, Xu D, Xia H, Wang S, Chen S, Hao YJ, Sun G. Potential “Therapeutic” Effects of Tocotrienol-Rich Fraction (TRF) and Carotene “Against” Bleomycin-Induced Pulmonary Fibrosis in Rats via TGF-β/Smad, PI3K/Akt/mTOR and NF-κB Signaling Pathways. Nutrients 2022; 14:nu14051094. [PMID: 35268069 PMCID: PMC8912851 DOI: 10.3390/nu14051094] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/03/2022] [Accepted: 03/03/2022] [Indexed: 12/23/2022] Open
Abstract
Background: Pulmonary fibrosis (PF) is a chronic, progressive, and, ultimately, terminal interstitial disease caused by a variety of factors, ranging from genetics, bacterial, and viral infections, to drugs and other influences. Varying degrees of PF and its rapid progress have been widely reported in post-COVID-19 patients and there is consequently an urgent need to develop an appropriate, cost-effective approach for the prevention and management of PF. Aim: The potential “therapeutic” effect of the tocotrienol-rich fraction (TRF) and carotene against bleomycin (BLM)-induced lung fibrosis was investigated in rats via the modulation of TGF-β/Smad, PI3K/Akt/mTOR, and NF-κB signaling pathways. Design/Methods: Lung fibrosis was induced in Sprague-Dawley rats by a single intratracheal BLM (5 mg/kg) injection. These rats were subsequently treated with TRF (50, 100, and 200 mg/kg body wt/day), carotene (10 mg/kg body wt/day), or a combination of TRF (200 mg/kg body wt/day) and carotene (10 mg/kg body wt/day) for 28 days by gavage administration. A group of normal rats was provided with saline as a substitute for BLM as the control. Lung function and biochemical, histopathological, and molecular alterations were studied in the lung tissues. Results: Both the TRF and carotene treatments were found to significantly restore the BLM-induced alterations in anti-inflammatory and antioxidant functions. The treatments appeared to show pneumoprotective effects through the upregulation of antioxidant status, downregulation of MMP-7 and inflammatory cytokine expressions, and reduction in collagen accumulation (hydroxyproline). We demonstrated that TRF and carotene ameliorate BLM-induced lung injuries through the inhibition of apoptosis, the induction of TGF-β1/Smad, PI3K/Akt/mTOR, and NF-κB signaling pathways. Furthermore, the increased expression levels were shown to be significantly and dose-dependently downregulated by TRF (50, 100, and 200 mg/kg body wt/day) treatment in high probability. The histopathological findings further confirmed that the TRF and carotene treatments had significantly attenuated the BLM-induced lung injury in rats. Conclusion: The results of this study clearly indicate the ability of TRF and carotene to restore the antioxidant system and to inhibit proinflammatory cytokines. These findings, thus, revealed the potential of TRF and carotene as preventive candidates for the treatment of PF in the future.
Collapse
Affiliation(s)
- Yifei Lu
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing 210009, China; (Y.L.); (Y.Z.); (Z.P.); (C.Y.); (L.C.); (Y.W.); (D.X.); (H.X.); (S.W.)
| | - Yihan Zhang
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing 210009, China; (Y.L.); (Y.Z.); (Z.P.); (C.Y.); (L.C.); (Y.W.); (D.X.); (H.X.); (S.W.)
| | - Zhenyu Pan
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing 210009, China; (Y.L.); (Y.Z.); (Z.P.); (C.Y.); (L.C.); (Y.W.); (D.X.); (H.X.); (S.W.)
| | - Chao Yang
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing 210009, China; (Y.L.); (Y.Z.); (Z.P.); (C.Y.); (L.C.); (Y.W.); (D.X.); (H.X.); (S.W.)
| | - Lin Chen
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing 210009, China; (Y.L.); (Y.Z.); (Z.P.); (C.Y.); (L.C.); (Y.W.); (D.X.); (H.X.); (S.W.)
| | - Yuanyuan Wang
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing 210009, China; (Y.L.); (Y.Z.); (Z.P.); (C.Y.); (L.C.); (Y.W.); (D.X.); (H.X.); (S.W.)
| | - Dengfeng Xu
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing 210009, China; (Y.L.); (Y.Z.); (Z.P.); (C.Y.); (L.C.); (Y.W.); (D.X.); (H.X.); (S.W.)
| | - Hui Xia
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing 210009, China; (Y.L.); (Y.Z.); (Z.P.); (C.Y.); (L.C.); (Y.W.); (D.X.); (H.X.); (S.W.)
| | - Shaokang Wang
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing 210009, China; (Y.L.); (Y.Z.); (Z.P.); (C.Y.); (L.C.); (Y.W.); (D.X.); (H.X.); (S.W.)
| | - Shiqing Chen
- Palm Oil Research and Technical Service Institute of Malaysian Palm Oil Board, Shanghai 201108, China; (S.C.); (Y.J.H.)
| | - Yoong Jun Hao
- Palm Oil Research and Technical Service Institute of Malaysian Palm Oil Board, Shanghai 201108, China; (S.C.); (Y.J.H.)
| | - Guiju Sun
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Nutrition and Food Hygiene, School of Public Health, Southeast University, Nanjing 210009, China; (Y.L.); (Y.Z.); (Z.P.); (C.Y.); (L.C.); (Y.W.); (D.X.); (H.X.); (S.W.)
- Correspondence: ; Tel.: +86-139-5192-8860
| |
Collapse
|
14
|
Xie X, Shu R, Yu C, Fu Z, Li Z. Mammalian AKT, the Emerging Roles on Mitochondrial Function in Diseases. Aging Dis 2022; 13:157-174. [PMID: 35111368 PMCID: PMC8782557 DOI: 10.14336/ad.2021.0729] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 07/29/2021] [Indexed: 01/21/2023] Open
Abstract
Mitochondrial dysfunction may play a crucial role in various diseases due to its roles in the regulation of energy production and cellular metabolism. Serine/threonine kinase (AKT) is a highly recognized antioxidant, immunomodulatory, anti-proliferation, and endocrine modulatory molecule. Interestingly, increasing studies have revealed that AKT can modulate mitochondria-mediated apoptosis, redox states, dynamic balance, autophagy, and metabolism. AKT thus plays multifaceted roles in mitochondrial function and is involved in the modulation of mitochondria-related diseases. This paper reviews the protective effects of AKT and its potential mechanisms of action in relation to mitochondrial function in various diseases.
Collapse
Affiliation(s)
- Xiaoxian Xie
- 1College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Ruonan Shu
- 1College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Chunan Yu
- 1College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Zhengwei Fu
- 1College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China
| | - Zezhi Li
- 2Department of Psychiatry, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China
| |
Collapse
|
15
|
Li X, Yang Y, Song Y, Nie F, Fu C, Qin Y. Effect of Shuangdan Mingmu Capsule on Diabetic Retinopathy in Rats via Regulation of miRNAs. Diabetes Metab Syndr Obes 2022; 15:3181-3194. [PMID: 36268199 PMCID: PMC9578787 DOI: 10.2147/dmso.s379611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 10/06/2022] [Indexed: 11/06/2022] Open
Abstract
PURPOSE To evaluate the effects of Shuangdan Mingmu (SDMM) capsule on diabetic retinopathy in rats by regulating miRNAs. MATERIALS AND METHODS Streptozotocin (STZ) (50 mg/kg) was successfully used to induce diabetes in male Sprague-Dawley rats, which were randomly assigned to a group taking SDMM capsules ("diabetic+SDMM") or a control group ("diabetic"), and the normal group (n=10/group). The diabetic+SDMM capsule group received 1.89g/kg/d of SDMM capsule by gavage, whereas the other groups received the same amount of distilled water. After 12-weeks of gavage, the retina was removed from all rats for histopathological analysis, and miRNA sequencing experiments were carried out to identify the differential expression of miRNAs. These results were then confirmed by quantitative real-time polymerase chain reaction (qRT-PCR). RESULTS SDMM capsules improved retinal morphology, restored the number of cells in the ganglion cell layer (p<0.0001) and reduced apoptosis in all retinal layers (p values in the outer nuclear layers, inner nuclear layers and ganglion cell layers 0.0001, 0.0147, 0.0034, respectively). In addition, miRNA expression was changed in rats taking SDMM capsules. Compared with the diabetic group, six miRNAs were up-regulated and four miRNAs were down-regulated in the diabetic+SDMM capsule group. The qRT-PCR validation results showed that the expression levels of miR-450b-5p, miR-1249 and miR-155-5p were consistent with the trend of miRNA sequencing results, and were all up-regulated after SDMM capsule treatment. Target gene prediction and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis of differentially expressed miRNAs showed that these pathways were mainly concentrated in the focal adhesions and PI3K/Akt, MAPK, and neural factor signaling pathways. CONCLUSION SDMM capsules may prevent and treat diabetic retinopathy by regulating the expression of miR-450b-5p, miR-1249 and miR-155-5p.
Collapse
Affiliation(s)
- Xiang Li
- Ophthalmology Department, the First Affiliated Hospital, Hunan University of Chinese Medicine, Changsha, 410007, People’s Republic of China
- Hunan Provincial Key Laboratory for the Prevention and Treatment of Ophthalmology and Otolaryngology Diseases with Chinese Medicine, Hunan University of Chinese Medicine, Changsha, 410208, People’s Republic of China
- Hunan Engineering Technological Research Center for the Prevention and Treatment of Otolaryngologic Disease and Protection of Visual Function with Chinese Medicine, Changsha, 410208, People’s Republic of China
| | - Yijing Yang
- Hunan Provincial Key Laboratory for the Prevention and Treatment of Ophthalmology and Otolaryngology Diseases with Chinese Medicine, Hunan University of Chinese Medicine, Changsha, 410208, People’s Republic of China
- Hunan Engineering Technological Research Center for the Prevention and Treatment of Otolaryngologic Disease and Protection of Visual Function with Chinese Medicine, Changsha, 410208, People’s Republic of China
| | - Yan Song
- Ophthalmology Department, the First Affiliated Hospital, Hunan University of Chinese Medicine, Changsha, 410007, People’s Republic of China
- Hunan Provincial Key Laboratory for the Prevention and Treatment of Ophthalmology and Otolaryngology Diseases with Chinese Medicine, Hunan University of Chinese Medicine, Changsha, 410208, People’s Republic of China
- Hunan Engineering Technological Research Center for the Prevention and Treatment of Otolaryngologic Disease and Protection of Visual Function with Chinese Medicine, Changsha, 410208, People’s Republic of China
| | - Fujiao Nie
- Ophthalmology Department, the First Affiliated Hospital, Hunan University of Chinese Medicine, Changsha, 410007, People’s Republic of China
- Hunan Provincial Key Laboratory for the Prevention and Treatment of Ophthalmology and Otolaryngology Diseases with Chinese Medicine, Hunan University of Chinese Medicine, Changsha, 410208, People’s Republic of China
- Hunan Engineering Technological Research Center for the Prevention and Treatment of Otolaryngologic Disease and Protection of Visual Function with Chinese Medicine, Changsha, 410208, People’s Republic of China
| | - Chaojun Fu
- Hunan Provincial Key Laboratory for the Prevention and Treatment of Ophthalmology and Otolaryngology Diseases with Chinese Medicine, Hunan University of Chinese Medicine, Changsha, 410208, People’s Republic of China
- Hunan Engineering Technological Research Center for the Prevention and Treatment of Otolaryngologic Disease and Protection of Visual Function with Chinese Medicine, Changsha, 410208, People’s Republic of China
| | - Yuhui Qin
- Hunan Provincial Key Laboratory for the Prevention and Treatment of Ophthalmology and Otolaryngology Diseases with Chinese Medicine, Hunan University of Chinese Medicine, Changsha, 410208, People’s Republic of China
- Hunan Engineering Technological Research Center for the Prevention and Treatment of Otolaryngologic Disease and Protection of Visual Function with Chinese Medicine, Changsha, 410208, People’s Republic of China
- Institute of Chinese Medicine of Hunan Province, Changsha, 410006, People’s Republic of China
- Correspondence: Yuhui Qin, Institute of Chinese Medicine of Hunan Province, Lushan Road, Yuelu District, Changsha, 410006, People’s Republic of China, Tel +86 13873120865, Email
| |
Collapse
|
16
|
Chen YJ, Li Y, Guo X, Huo B, Chen Y, He Y, Xiao R, Zhu XH, Jiang DS, Wei X. Upregulation of IRF9 Contributes to Pulmonary Artery Smooth Muscle Cell Proliferation During Pulmonary Arterial Hypertension. Front Pharmacol 2021; 12:773235. [PMID: 34925032 PMCID: PMC8672195 DOI: 10.3389/fphar.2021.773235] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 11/16/2021] [Indexed: 12/30/2022] Open
Abstract
Abnormal proliferation of pulmonary artery smooth muscle cells (PASMCs) is a critical pathological feature in the pathogenesis of pulmonary arterial hypertension (PAH), but the regulatory mechanisms remain largely unknown. Herein, we demonstrated that interferon regulatory factor 9 (IRF9) accelerated PASMCs proliferation by regulating Prohibitin 1 (PHB1) expression and the AKT-GSK3β signaling pathway. Compared with control groups, the rats treated with chronic hypoxia (CH), monocrotaline (MCT) or sugen5416 combined with chronic hypoxia (SuHx), and mice challenged with CH had significantly thickened pulmonary arterioles and hyperproliferative PASMCs. More importantly, the protein level of IRF9 was found to be elevated in the thickened medial wall of the pulmonary arterioles in all of these PAH models. Notably, overexpression of IRF9 significantly promoted the proliferation of rat and human PASMCs, as evidenced by increased cell counts, EdU-positive cells and upregulated biomarkers of cell proliferation. In contrast, knockdown of IRF9 suppressed the proliferation of rat and human PASMCs. Mechanistically, IRF9 directly restrained PHB1 expression and interacted with AKT to inhibit the phosphorylation of AKT at thr308 site, which finally led to mitochondrial dysfunction and PASMC proliferation. Unsurprisingly, MK2206, a specific inhibitor of AKT, partially reversed the PASMC proliferation inhibited by IRF9 knockdown. Thus, our results suggested that elevation of IRF9 facilitates PASMC proliferation by regulating PHB1 expression and AKT signaling pathway to affect mitochondrial function during the development of PAH, which indicated that targeting IRF9 may serve as a novel strategy to delay the pathological progression of PAH.
Collapse
Affiliation(s)
- Yong-Jie Chen
- Division of Cardiothoracic and Vascular Surgery, Sino-Swiss Heart-Lung Transplantation Institute, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Department of Cardiovascular Surgery, Union Hospital, Fujian Medical University, Fuzhou, China
| | - Yi Li
- Division of Cardiothoracic and Vascular Surgery, Sino-Swiss Heart-Lung Transplantation Institute, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xian Guo
- Division of Cardiothoracic and Vascular Surgery, Sino-Swiss Heart-Lung Transplantation Institute, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bo Huo
- Division of Cardiothoracic and Vascular Surgery, Sino-Swiss Heart-Lung Transplantation Institute, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yue Chen
- Division of Cardiothoracic and Vascular Surgery, Sino-Swiss Heart-Lung Transplantation Institute, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yi He
- Division of Cardiothoracic and Vascular Surgery, Sino-Swiss Heart-Lung Transplantation Institute, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Rui Xiao
- Department of Pathophysiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Key Laboratory of Pulmonary Diseases of Ministry of Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xue-Hai Zhu
- Division of Cardiothoracic and Vascular Surgery, Sino-Swiss Heart-Lung Transplantation Institute, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation, Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, China
| | - Ding-Sheng Jiang
- Division of Cardiothoracic and Vascular Surgery, Sino-Swiss Heart-Lung Transplantation Institute, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation, Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, China
| | - Xiang Wei
- Division of Cardiothoracic and Vascular Surgery, Sino-Swiss Heart-Lung Transplantation Institute, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation, Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan, China
| |
Collapse
|
17
|
Zhang F, Yan Y, Peng W, Wang L, Wang T, Xie Z, Luo H, Zhang J, Dong W. PARK7 promotes repair in early steroid-induced osteonecrosis of the femoral head by enhancing resistance to stress-induced apoptosis in bone marrow mesenchymal stem cells via regulation of the Nrf2 signaling pathway. Cell Death Dis 2021; 12:940. [PMID: 34645791 PMCID: PMC8514492 DOI: 10.1038/s41419-021-04226-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 09/13/2021] [Accepted: 09/24/2021] [Indexed: 12/13/2022]
Abstract
Novel therapies for the treatment of early steroid-induced osteonecrosis of the femoral head (SONFH) are urgently needed in orthopedics. Transplantation of bone marrow mesenchymal stem cells (BMSCs) provides new strategies for treating this condition at the early stage. However, stress-induced apoptosis of BMSCs transplanted into the femoral head necrotic area limits the efficacy of BMSC transplantation. Inhibiting BMSC apoptosis is key to improving the efficacy of this procedure. In our previous studies, we confirmed that Parkinson disease protein 7 (PARK7) is active in antioxidant defense and can clear reactive oxygen species (ROS), protect the mitochondria, and impart resistance to stress-induced apoptosis in BMSCs. In this study, we investigated the mechanism driving this PARK7-mediated resistance to apoptosis in BMSCs. Our results indicate that PARK7 promoted the disintegration of nuclear factor (erythroid-derived 2)-like 2 (Nrf2)/Kelch-like echinacoside-associated protein 1 (Keap1) complex. The free Nrf2 then entered the nucleus and activated the genetic expression of manganese superoxide dismutase (MnSOD), catalase (CAT), glutathione peroxidase (GPx), and other antioxidant enzymes that clear excessive ROS, thereby protecting BMSCs from stress-induced apoptosis. To further explore whether PARK7-mediated resistance to stress-induced apoptosis could improve the efficacy of BMSC transplantation in early-stage SONFH, we transplanted BMSCs-overexpressing PARK7 into rats with early-stage SONFH. We then evaluated the survival of transplanted BMSCs and bone regeneration in the femoral head necrotic area of these rats. The results indicated that PARK7 promoted the survival of BMSCs in the osteonecrotic area and improved the transplantation efficacy of BMSCs on early-stage SONFH. This study provides new ideas and methods for resisting the stress-induced apoptosis of BMSCs and improving the transplantation effect of BMSCs on early-stage SONFH.
Collapse
Affiliation(s)
- Fei Zhang
- Department of Orthopedics, The Affliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550004, China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, China
| | - Yanglin Yan
- Department of Orthopedics, The Affliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550004, China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, China
| | - Wuxun Peng
- Department of Orthopedics, The Affliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550004, China.
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, China.
| | - Lei Wang
- Department of Orthopedics, The Affliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550004, China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, China
| | - Tao Wang
- Department of Orthopedics, The Affliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550004, China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, China
| | - Zhihong Xie
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, China
| | - Hong Luo
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, China
| | - Jian Zhang
- Department of Orthopedics, The Affliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550004, China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, China
| | - Wentao Dong
- Department of Orthopedics, The Affliated Hospital of Guizhou Medical University, Guiyang, Guizhou, 550004, China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, Guizhou, 550004, China
| |
Collapse
|
18
|
Red Light Irradiation In Vivo Upregulates DJ-1 in the Retinal Ganglion Cell Layer and Protects against Axotomy-Related Dendritic Pruning. Int J Mol Sci 2021; 22:ijms22168380. [PMID: 34445085 PMCID: PMC8395066 DOI: 10.3390/ijms22168380] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 07/30/2021] [Accepted: 07/30/2021] [Indexed: 12/26/2022] Open
Abstract
Retinal ganglion cells (RGCs) undergo dendritic pruning in a variety of neurodegenerative diseases, including glaucoma and autosomal dominant optic atrophy (ADOA). Axotomising RGCs by severing the optic nerve generates an acute model of RGC dendropathy, which can be utilized to assess the therapeutic potential of treatments for RGC degeneration. Photobiomodulation (PBM) with red light provided neuroprotection to RGCs when administered ex vivo to wild-type retinal explants. In the current study, we used aged (13–15-month-old) wild-type and heterozygous B6;C3-Opa1Q285STOP (Opa1+/−) mice, a model of ADOA exhibiting RGC dendropathy. These mice were pre-treated with 4 J/cm2 of 670 nm light for five consecutive days before the eyes were enucleated and the retinas flat-mounted into explant cultures for 0-, 8- or 16-h ex vivo. RGCs were imaged by confocal microscopy, and their dendritic architecture was quantified by Sholl analysis. In vivo 670 nm light pretreatment inhibited the RGC dendropathy observed in untreated wild-type retinas over 16 h ex vivo and inhibited dendropathy in ON-center RGCs in wild-type but not Opa1+/− retinas. Immunohistochemistry revealed that aged Opa1+/− RGCs exhibited increased nitrosative damage alongside significantly lower activation of NF-κB and upregulation of DJ-1. PBM restored NF-κB activation in Opa1+/− RGCs and enhanced DJ-1 expression in both genotypes, indicating a potential molecular mechanism priming the retina to resist future oxidative insult. These data support the potential of PBM as a treatment for diseases involving RGC degeneration.
Collapse
|
19
|
Abd El-Ghafar OAM, Hassanein EHM, Sayed AM, Rashwan EK, Shalkami AGS, Mahmoud AM. Acetovanillone prevents cyclophosphamide-induced acute lung injury by modulating PI3K/Akt/mTOR and Nrf2 signaling in rats. Phytother Res 2021; 35:4499-4510. [PMID: 33969557 DOI: 10.1002/ptr.7153] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 02/16/2021] [Accepted: 04/23/2021] [Indexed: 12/30/2022]
Abstract
Cyclophosphamide (CP) is a medication used as an anticancer drug and to suppress the immune system. However, its clinical applications are restricted because of the toxic and adverse side effects. The present study investigated the protective effect of acetovanillone (AV), a natural NADPH oxidase inhibitor, against acute lung injury (ALI) induced by CP. Rats were administered AV (100 mg/kg) for 10 days and a single injection of CP (200 mg/kg) at day 7. At the end of the experiment, the animals were sacrificed, and lung samples were collected for analyses. CP caused ALI manifested by the histopathological alterations. Lipid peroxidation and NADPH oxidase activity were increased, whereas GSH and antioxidant enzymes were decreased in the lung of CP-intoxicated rats. Oral administration of AV prevented CP-induced lung injury and oxidative stress and enhanced antioxidant defenses. AV downregulated Keap1 and upregulated Nrf2, GCLC, HO-1, and SOD3 mRNA. In addition, AV boosted the expression of PI3K, Akt, mTOR, and cytoglobin. In vitro, AV showed a synergistic anticancer effect when combined with CP. In conclusion, AV protected against CP-induced ALI by attenuating oxidative stress and boosting Nrf2/HO-1 and PI3K/Akt/mTOR signaling. Therefore, AV might represent a promising adjuvant to prevent lung injury in patients receiving CP.
Collapse
Affiliation(s)
- Omnia A M Abd El-Ghafar
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Nahda University, Beni Suef, Egypt
| | - Emad H M Hassanein
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Ahmed M Sayed
- Biochemistry Laboratory, Chemistry Department, Faculty of Science, Assiut University, Asyut, Egypt
| | - Eman K Rashwan
- Department of Physiology, College of Medicine, Jouf University, Sakakah, Saudi Arabia.,Department of Physiology, College of Medicine, Al-Azhar University, Cairo, Egypt
| | - Abdel-Gawad S Shalkami
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt
| | - Ayman M Mahmoud
- Physiology Division, Zoology Department, Faculty of Science, Beni-Suef University, Beni Suef, Egypt.,Biotechnology Department, Research Institute of Medicinal and Aromatic Plants, Beni-Suef University, Beni Suef, Egypt
| |
Collapse
|
20
|
Chen R, Li W, Qiu Z, Zhou Q, Zhang Y, Li WY, Ding K, Meng QT, Xia ZY. Ischemic Postconditioning-Mediated DJ-1 Activation Mitigate Intestinal Mucosa Injury Induced by Myocardial Ischemia Reperfusion in Rats Through Keap1/Nrf2 Pathway. Front Mol Biosci 2021; 8:655619. [PMID: 33996908 PMCID: PMC8119885 DOI: 10.3389/fmolb.2021.655619] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 04/12/2021] [Indexed: 01/23/2023] Open
Abstract
Intestinal mucosal barrier dysfunction induced by myocardial ischemia reperfusion (IR) injury often leads to adverse cardiovascular outcomes after myocardial infarction. Early detection and prevention of remote intestinal injury following myocardial IR may help to estimate and improve prognosis after acute myocardial infarction (AMI). This study investigated the protective effect of myocardial ischemic postconditioning (IPo) on intestinal barrier injury induced by myocardial IR and the underlying cellular signaling mechanisms with a focus on the DJ-1. Adult SD rats were subjected to unilateral myocardial IR with or without ischemic postconditioning. After 30 min of ischemia and 120 min of reperfusion, heart tissue, intestine, and blood were collected for subsequent examination. The outcome measures were (i) intestinal histopathology, (ii) intestinal barrier function and inflammatory responses, (iii) apoptosis and oxidative stress, and (iv) cellular signaling changes. IPo significantly attenuated intestinal injury induced by myocardial IR. Furthermore, IPo significantly increased DJ-1, nuclear Nrf2, NQO1, and HO-1 expression in the intestine and inhibited IR-induced apoptosis and oxidative stress. The protective effect of IPo was abolished by the knockdown of DJ-1. Conversely, the overexpression of DJ-1 provided a protective effect similar to that of IPo. Our data indicate that IPo protects the intestine against myocardial IR, which is likely mediated by the upregulation of DJ-1/Nrf2 pathway.
Collapse
Affiliation(s)
- Rong Chen
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Wei Li
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Zhen Qiu
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Qin Zhou
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Yuan Zhang
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Wen-Yuan Li
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Ke Ding
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Qing-Tao Meng
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Zhong-Yuan Xia
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan, China
| |
Collapse
|
21
|
Shi J, Lv H, Tang C, Li Y, Huang J, Zhang H. Mangiferin inhibits cell migration and angiogenesis via PI3K/AKT/mTOR signaling in high glucose‑ and hypoxia‑induced RRCECs. Mol Med Rep 2021; 23:473. [PMID: 33899114 PMCID: PMC8097750 DOI: 10.3892/mmr.2021.12112] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 02/02/2021] [Indexed: 12/13/2022] Open
Abstract
Mangiferin is a prominent active component that can be derived from several traditional herbs, including Mangifera indica L., Anemarrhena asphodeloides Bge., and Belamcanda chinensis (L.) DC., which displays antidiabetic properties. Diabetic retinopathy (DR), a serious complication caused by diabetes, is the leading cause of blindness. The present study aimed to evaluate the beneficial effects of mangiferin on high glucose (HG)/hypoxia‑induced rat retinal capillary endothelial cell (RRCEC) angiogenesis, as well as the underlying mechanisms. To establish an in vitro model of DR, RRCECs were exposed to 30 mM glucose and hypoxia. Following treatment with different doses of mangiferin (0.05, 0.1 or 0.2 µM), RRCEC viability, migration and angiogenesis were assessed by performing Cell Counting Kit 8, immunofluorescence, wound healing, Transwell and tube formation assays. Western blotting was conducted to evaluate protein expression levels. Furthermore, LY294002 and IGF‑1, an inhibitor and activator of the PI3K/AKT/mTOR signaling pathway, respectively, were used to verify the potential mechanisms underlying mangiferin. The results demonstrated that mangiferin notably inhibited HG/hypoxia‑induced RRCEC migration and angiogenesis. HG/hypoxia‑induced upregulation of hypoxia‑inducible factor‑1α, vascular endothelial growth factor, matrix metallopeptidase (MMP)2 and MMP9 expression levels and the phosphorylation of PI3K, AKT and mTOR in RRCECs was significantly reversed following treatment with mangiferin. Additionally, further activation of the PI3K/AKT signaling pathway by IGF‑1 inhibited the beneficial effects of mangiferin on RRCECs, whereas deactivation of the PI3K/AKT signaling pathway by LY294002 displayed the opposite results. Collectively, the results of the present study suggested that mangiferin suppressed RRCEC angiogenesis via modulating the PI3K/AKT/mTOR signaling pathway, which could serve as an effective treatment strategy for DR.
Collapse
Affiliation(s)
- Jia Shi
- Department of Ophthalmology, The People's Hospital of Deyang City, Deyang, Sichuan 618000, P.R. China
| | - Hongbin Lv
- Department of Ophthalmology, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
| | - Chen Tang
- Department of Ophthalmology, The People's Hospital of Deyang City, Deyang, Sichuan 618000, P.R. China
| | - Yujie Li
- Department of Ophthalmology, The People's Hospital of Deyang City, Deyang, Sichuan 618000, P.R. China
| | - Jing Huang
- Department of Ophthalmology, The People's Hospital of Deyang City, Deyang, Sichuan 618000, P.R. China
| | - Hong Zhang
- Department of Ophthalmology, The People's Hospital of Deyang City, Deyang, Sichuan 618000, P.R. China
| |
Collapse
|
22
|
Markasz L, Olsson KW, Holmström G, Sindelar R. Cluster Analysis of Early Postnatal Biochemical Markers May Predict Development of Retinopathy of Prematurity. Transl Vis Sci Technol 2020; 9:14. [PMID: 33344058 PMCID: PMC7726592 DOI: 10.1167/tvst.9.13.14] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 10/19/2020] [Indexed: 12/15/2022] Open
Abstract
Purpose Growth factors and inflammatory and angiogenetic proteins are involved in the development of retinopathy of prematurity (ROP). However, no early biochemical markers are in clinical use to predict ROP. By performing cluster analysis of multiple biomarkers, we aimed to determine patient groups with high and low risk for developing ROP. Methods In total, 202 protein markers in plasma were quantified by proximity extension assay from 35 extremely preterm infants on day 2 of life. Infants were sorted in groups by automated two-dimensional hierarchical clustering of all biomarkers. ROP was classified as stages I to III with or without surgical treatment. Predictive biomarkers were evaluated by analysis of variance and detected differences by two-sided paired t-test with Bonferroni corrections for multiple comparisons. Results Differences in 39 biochemical markers divided infants without ROP into two control groups (control 1, n = 7; control 2, n = 5; P < 0.05). Sixty-six biochemical markers defined differences between the control groups (n = 13) and all ROP infants (n = 23; P < 0.05). PARK7, VIM, MPO, CD69, and NEMO were markedly increased in control 1 compared to all ROP infants (P < 0.001). Lower TNFRSF4 and higher HER2 and GAL appeared in infants with ROP as compared to control 1 and/or 2 (P < 0.05, respectively). Conclusions Our data suggest that early elevated levels of PARK7, VIM, MPO, CD69, and NEMO may be associated with lower risk of developing ROP. Lower levels of TNFRSF4 with higher levels of HER2 and GAL may predict ROP development. Translational Relevance Cluster analysis of early postnatal biomarkers may help to identify infants with low or high risk of developing ROP.
Collapse
Affiliation(s)
- Laszlo Markasz
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - Karl-Wilhelm Olsson
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden.,Department of Surgical Sciences, Uppsala University, Uppsala, Sweden
| | - Gerd Holmström
- Department of Neuroscience/Ophthalmology, Uppsala University, Uppsala, Sweden
| | - Richard Sindelar
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| |
Collapse
|
23
|
Hassanein EHM, Abd El-Ghafar OAM, Ahmed MA, Sayed AM, Gad-Elrab WM, Ajarem JS, Allam AA, Mahmoud AM. Edaravone and Acetovanillone Upregulate Nrf2 and PI3K/Akt/mTOR Signaling and Prevent Cyclophosphamide Cardiotoxicity in Rats. DRUG DESIGN DEVELOPMENT AND THERAPY 2020; 14:5275-5288. [PMID: 33299300 PMCID: PMC7721127 DOI: 10.2147/dddt.s281854] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 11/11/2020] [Indexed: 01/17/2023]
Abstract
Introduction Cyclophosphamide (CP) causes redox imbalance and its use is associated with marked cardiotoxicity that limits its clinical applications. The present study investigated the protective effects of acetovanillone (AV) and edaravone (ED) against CP-induced oxidative stress and cardiac damage, emphasizing the role of PI3K/Akt/mTOR and Nrf2 signaling. Materials and Methods Rats received either AV (100 mg/kg) or ED (20 mg/kg) orally for 10 days and CP (200 mg/kg) on day 7. At day 11, the rats were sacrificed, and samples were collected for analysis. Results AV and ED ameliorated serum troponin I, CK-MB, LDH, AST and ALP, and prevented cardiac histological alterations in CP-intoxicated rats. Both treatments decreased cardiac lipid peroxidation and enhanced GSH, SOD and cytoglobin in CP-induced rats. AV and ED downregulated Keap1, whereas increased the expression of PI3K, Akt, mTOR and Nrf2 in the heart of rats received CP. Additionally, the binding modes of AV and ED to Keap1 were pinpointed in silico using molecular docking simulations. Conclusion AV and ED prevent CP cardiotoxicity by attenuating oxidative stress and tissue injury, and modulating cytoglobin, and PI3K/Akt/mTOR and Keap1/Nrf2 signaling. Therefore, AV and ED may represent promising agents that can prevent cardiac injury in patients receiving CP.
Collapse
Affiliation(s)
- Emad H M Hassanein
- Department of Pharmacology and Toxicology Faculty of Pharmacy, Al-Azhar University, Assiut, Egypt
| | - Omnia A M Abd El-Ghafar
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Nahda University, Beni-Suef, Egypt
| | - Marwa A Ahmed
- Department of Pharmacology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Ahmed M Sayed
- Biochemistry Laboratory, Chemistry Department, Faculty of Science, Assiut University, Assiut, Egypt
| | - Wail M Gad-Elrab
- Human Anatomy & Embryology Department Faculty of Medicine, Al-Azhar University, Assiut, Egypt
| | - Jamaan S Ajarem
- Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Ahmed A Allam
- Zoology Department Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
| | - Ayman M Mahmoud
- Zoology Department Faculty of Science, Beni-Suef University, Beni-Suef, Egypt.,Biotechnology Department, Research Institute of Medicinal and Aromatic Plants, Beni-Suef University, Beni-Suef, Egypt
| |
Collapse
|
24
|
Zhang F, Peng W, Zhang J, Wang L, Dong W, Zheng Y, Wang Z, Xie Z, Wang T, Wang C, Yan Y. PARK7 enhances antioxidative-stress processes of BMSCs via the ERK1/2 pathway. J Cell Biochem 2020; 122:222-234. [PMID: 32918333 PMCID: PMC7820948 DOI: 10.1002/jcb.29845] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 08/15/2020] [Accepted: 08/31/2020] [Indexed: 12/15/2022]
Abstract
Oxidative stresss in the microenvironment surrounding lesions induces apoptosis of transplanted bone‐marrow‐derived mesenchymal stem cells (BMSCs). Hence, there is an urgent need for improving antioxidative‐stress processes of transplanted BMSCs to further promote their survival. The present study reports the role and mechanism of Parkinson's disease protein 7 (PARK7) in enhancing antioxidative activity in BMSCs. We used a PARK7 lentivirus to transfect BMSCs to up‐ or downregulate PARK7, and then used H2O2 to simulate oxidative stress in BMSCs in vitro. Overexpression of PARK7 effectively reduced reactive oxygen species and malondialdehyde, protected mitochondrial membrane potential, and resisted oxidative‐stress‐induced apoptosis of BMSCs, but the expression of PARK7 was downregulated, these results were reversed. At the same time, we also found that overexpression of PARK7 increased extracellular‐regulated protein kinase 1/2 (ERK1/2) phosphorylation and nuclear translocation, as well as upregulated Elk1 phosphorylation and superoxide dismutase (SOD) expression. In contrast, when U0126 was used to block the ERK1/2 pathway, ERK1/2 and Elk1 phosphorylation levels were downregulated, ERK1/2 nuclear translocation and SOD content were significantly reduced, and PARK7‐overexperssion‐induced antioxidative activity was completely blocked. Collectively, our results suggest that PARK7 overexpression increased antioxidative‐stress processes and survival of BMSCs subjected to H2O2 via activating the ERK1/2 signaling pathway. Our findings may guide the development of a PARK7‐specific strategy for improving the transplantation efficacy of BMSCs.
Collapse
Affiliation(s)
- Fei Zhang
- Department of Traumatologic Surgery, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China.,School of clinical medicine, Guizhou Medical University, Guiyang, Guizhou, China
| | - Wuxun Peng
- Department of Traumatologic Surgery, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China.,School of clinical medicine, Guizhou Medical University, Guiyang, Guizhou, China
| | - Jian Zhang
- Department of Traumatologic Surgery, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China.,School of clinical medicine, Guizhou Medical University, Guiyang, Guizhou, China
| | - Lei Wang
- Department of Statistics, Guizhou Maternal and Child Health Hospital, Guiyang, Guizhou, China
| | - Wentao Dong
- Department of Traumatologic Surgery, The Affiliated Hospital of Guizhou Medical University, Guiyang, Guizhou, China.,School of clinical medicine, Guizhou Medical University, Guiyang, Guizhou, China
| | - Yinggang Zheng
- Department of Orthopedics, The Affiliated Wudang Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - Zhenwen Wang
- Department of Orthopedics, The Affiliated Cancer Hospital of Guizhou Medical University, Guiyang, Guizhou, China
| | - Zhihong Xie
- School of clinical medicine, Guizhou Medical University, Guiyang, Guizhou, China
| | - Tao Wang
- School of clinical medicine, Guizhou Medical University, Guiyang, Guizhou, China
| | - Chuan Wang
- School of clinical medicine, Guizhou Medical University, Guiyang, Guizhou, China
| | - Yanglin Yan
- School of clinical medicine, Guizhou Medical University, Guiyang, Guizhou, China
| |
Collapse
|
25
|
He J, Peng H, Wang M, Liu Y, Guo X, Wang B, Dai L, Cheng X, Meng Z, Yuan L, Cai F, Tang Y. Isoliquiritigenin inhibits TGF-β1-induced fibrogenesis through activating autophagy via PI3K/AKT/mTOR pathway in MRC-5 cells. Acta Biochim Biophys Sin (Shanghai) 2020; 52:810-820. [PMID: 32638014 DOI: 10.1093/abbs/gmaa067] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Indexed: 12/15/2022] Open
Abstract
Isoliquiritigenin (ISL), a natural flavonoid derived from the root of liquorice, has been reported to possess anti-inflammatory and antioxidant activities. Previous studies have found that ISL plays a crucial role in anti-fibrosis of adipose tissue and renal tissue; however, its effect on pulmonary fibrogenesis has not been demonstrated. In this study, we aimed to explore the roles and the underlying mechanisms of ISL in TGF-β1-induced fibrogenesis using human lung fibroblast-derived MRC-5 cells. Cell proliferation and migration were determined by MTT and wound healing assay, respectively. The expression levels of alpha-smooth muscle actin (α-SMA), collagen type I alpha 1 (COLIA1) and fibronectin (FN), microtubule-associated protein light chain 3 (LC3) and related signaling molecules were detected by quantitative real-time PCR, western blot and immunofluorescence assay, correspondingly. EGFP-LC3 transfection was used for autophagy analysis. The results showed that ISL inhibited the TGF-β1-induced proliferation and migration, and down-regulated the expressions of α-SMA, COLIA1 and FN. ISL treatment led to up-regulation of LC3 in TGF-β1-treated MRC-5 cells, accompanied by significant decrease in the phosphorylation levels of phosphatidylinositol 3-kinase (PI3K), protein kinase B (AKT), and mammalian target of rapamycin (mTOR). In addition, the inhibitory effects of ISL on TGF-β1-induced fibrogenic features in MRC-5 cells were enhanced by pretreatment with autophagy activator Rapmycin and PI3K/AKT inhibitor LY294002 and reversed by autophagy inhibitor 3-methyladenine and PI3K/AKT activator IGF-1. Taken together, our results demonstrated that ISL could attenuate the fibrogenesis of TGF-β1-treated MRC-5 cells by activating autophagy via suppressing the PI3K/AKT/mTOR pathway. Therefore, ISL holds a great potential to be developed as a novel therapeutic agent for the treatment of pulmonary fibrosis.
Collapse
Affiliation(s)
- Jinjuan He
- Department of Respiratory and Critical Care Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, China
| | - Hao Peng
- Department of Neurosurgery, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, China
| | - Meifang Wang
- Department of Respiratory and Critical Care Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, China
| | - Ying Liu
- Laboratory of Molecular Target Therapy of Cancer, Institute of Basic Medical Sciences, Hubei University of Medicine, Shiyan 442000, China
| | - Xingrong Guo
- Hubei Key Laboratory of Embryonic Stem Cell Research, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, China
| | - Bin Wang
- Department of Neurosurgery, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, China
- Department of Surgery, University of British Columbia, Vancouver V6T 1Z4, Canada
| | - Longjun Dai
- Department of Neurosurgery, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, China
- Department of Surgery, University of British Columbia, Vancouver V6T 1Z4, Canada
| | - Xueqin Cheng
- Department of Respiratory and Critical Care Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, China
| | - Zhongji Meng
- Institute of Biomedical Research, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, China
| | - Leyong Yuan
- Department of Respiratory and Critical Care Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, China
| | - Fenglin Cai
- Department of Respiratory and Critical Care Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, China
| | - Yijun Tang
- Department of Respiratory and Critical Care Medicine, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, China
- Hubei Key Laboratory of Embryonic Stem Cell Research, Taihe Hospital, Hubei University of Medicine, Shiyan 442000, China
| |
Collapse
|