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Zuo S, Yuan H, Li X, Chen M, Peng R, Chen S, Zou X, Yang Y, Long H, Liu Z, Wang T, Guo B, Liu L. SMYD2 Promotes Renal Tubular Cell Apoptosis and Chronic Kidney Disease Following Cisplatin Nephrotoxicity. FASEB J 2025; 39:e70651. [PMID: 40391402 PMCID: PMC12090038 DOI: 10.1096/fj.202402703r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2024] [Revised: 03/25/2025] [Accepted: 05/07/2025] [Indexed: 05/21/2025]
Abstract
The protein lysine methyltransferase 2 (SMYD2) can affect cell proliferation, differentiation, and survival through methylation of its histone and non-histone substrates. SMYD2 has been shown to act as an oncogene to promote disease progression in a variety of cancer diseases, but its role in chronic kidney diseases (CKD) pathogenesis has not been fully elucidated. This study aims to investigate the effect of SMYD2 on cisplatin-induced CKD and its underlying mechanisms. In this study, we found that cisplatin caused severe renal injury in mice, which was accompanied by the up-regulation of SMYD2 expression. AZ505 treatment significantly down-regulated cisplatin-induced renal injury and fibrosis. It also alleviated renal apoptosis and inhibited the phosphorylation level of NF-κB p65. Conditional knockdown of Smyd2 achieved similar effects as AZ505. In renal tubular epithelial cells, inhibition or silencing of SMYD2 down-regulated cisplatin-induced apoptotic response, while overexpression of SMYD2 induced apoptotic response and activated NF-κB in response to the up-regulation of SMYD2 expression. Up-regulation of SMYD2 induced interaction and phosphorylation of SMYD2 and NF-κB p65, and inhibition of NF-κB activation further suppressed cisplatin-induced NF-κB activation and apoptosis. The present study suggests that up-regulation of SMYD2 expression in cisplatin-induced CKD may promote apoptosis of renal tubular epithelial cells and accelerate the process of renal injury through NF-κB activation. SMYD2 may serve as a potential target for effective CKD treatment.
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Affiliation(s)
- Siyang Zuo
- Center for Clinical LaboratoriesThe Affiliated Hospital of Guizhou Medical UniversityGuiyangChina
- Guizhou Institute of Precision MedicineAffiliated Hospital of Guizhou Medical UniversityGuiyangChina
| | - Huixiong Yuan
- Center for Clinical LaboratoriesThe Affiliated Hospital of Guizhou Medical UniversityGuiyangChina
- Guizhou Institute of Precision MedicineAffiliated Hospital of Guizhou Medical UniversityGuiyangChina
| | - Xia Li
- Key Laboratory of Kidney Disease Pathogenesis Research and Transformation ApplicationGuizhou UniversityGuiyangChina
| | - Ming Chen
- Center for Clinical LaboratoriesThe Affiliated Hospital of Guizhou Medical UniversityGuiyangChina
- Guizhou Institute of Precision MedicineAffiliated Hospital of Guizhou Medical UniversityGuiyangChina
| | - Rui Peng
- Center for Clinical LaboratoriesThe Affiliated Hospital of Guizhou Medical UniversityGuiyangChina
- Guizhou Institute of Precision MedicineAffiliated Hospital of Guizhou Medical UniversityGuiyangChina
| | - Siyu Chen
- Center for Clinical LaboratoriesThe Affiliated Hospital of Guizhou Medical UniversityGuiyangChina
- Guizhou Institute of Precision MedicineAffiliated Hospital of Guizhou Medical UniversityGuiyangChina
| | - Xue Zou
- Key Laboratory of Kidney Disease Pathogenesis Research and Transformation ApplicationGuizhou UniversityGuiyangChina
| | - Yuan Yang
- Center for Clinical LaboratoriesThe Affiliated Hospital of Guizhou Medical UniversityGuiyangChina
- Guizhou Institute of Precision MedicineAffiliated Hospital of Guizhou Medical UniversityGuiyangChina
| | - Hehua Long
- Center for Clinical LaboratoriesThe Affiliated Hospital of Guizhou Medical UniversityGuiyangChina
- Guizhou Institute of Precision MedicineAffiliated Hospital of Guizhou Medical UniversityGuiyangChina
| | - Zeying Liu
- Center for Clinical LaboratoriesThe Affiliated Hospital of Guizhou Medical UniversityGuiyangChina
- Guizhou Institute of Precision MedicineAffiliated Hospital of Guizhou Medical UniversityGuiyangChina
| | - Teng Wang
- Center for Clinical LaboratoriesThe Affiliated Hospital of Guizhou Medical UniversityGuiyangChina
- Guizhou Institute of Precision MedicineAffiliated Hospital of Guizhou Medical UniversityGuiyangChina
| | - Bing Guo
- Guizhou Provincial Key Laboratory of Pathogenesis and Drug Research on Common Chronic DiseasesGuizhou Medical UniversityGui'an New DistrictChina
| | - Lirong Liu
- Center for Clinical LaboratoriesThe Affiliated Hospital of Guizhou Medical UniversityGuiyangChina
- Guizhou Institute of Precision MedicineAffiliated Hospital of Guizhou Medical UniversityGuiyangChina
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Xie Y, Wang R, Wu Z, Xie C, Gong S, Zhang J, Yu H, Song Z. Prophylactic application of sodium new houttuyfonate to regulate macrophage activation and antifungal infection in intra-abdominal candidiasis model mice. Int Immunopharmacol 2025; 159:114922. [PMID: 40412128 DOI: 10.1016/j.intimp.2025.114922] [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: 12/10/2024] [Revised: 05/10/2025] [Accepted: 05/19/2025] [Indexed: 05/27/2025]
Abstract
The abuse of immunosuppressants causes damage to the immune system, while the pathological proliferation and translocation of symbiotic Candida albicans can result in abdominal infection in immunocompromised people. In this study, we established a mouse peritoneal C. albicans infection model and investigated the effects of preventive application of Sodium New Houttuyfonate (SNH) by analyzing the proportion of immune cells, polarization of peritoneal macrophages, changes in fungal tissue load, and histology, and the data showed prophylactic SNH administration yields a double anti-infection effect in phagocytosis and regulation of immunity according to the immune inflammatory states of the body. In vitro, neutral red, colony counting, cytometric bead array, RT-qPCR, western blot, inhibitor treatment, and detection of reactive oxygen species (ROS) and nitric oxide (NO) production on RAW264.7 macrophages showed SNH can stimulate the production of tumor necrosis factor-alpha (TNF-α) and CC motif ligand 2 (CCL2) and the release of ROS and NO through a TLR2/p38/NF-κB pathway. Taken together, our data provide an innovative insight into the prevention use of exogenous SNH for the treatment of C. albicans infection.
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Affiliation(s)
- Yuxin Xie
- School of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, People's Republic of China
| | - Rong Wang
- School of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, People's Republic of China
| | - Zhihao Wu
- School of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, People's Republic of China
| | - Cheng Xie
- The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou 646000, People's Republic of China
| | - Shu Gong
- Public Center of Experimental Technology, Southwest Medical University, Luzhou 646000, People's Republic of China
| | - Jinping Zhang
- School of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, People's Republic of China; Public Center of Experimental Technology, Southwest Medical University, Luzhou 646000, People's Republic of China
| | - Hong Yu
- School of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, People's Republic of China; Public Center of Experimental Technology, Southwest Medical University, Luzhou 646000, People's Republic of China.
| | - Zhangyong Song
- School of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, People's Republic of China; Public Center of Experimental Technology, Southwest Medical University, Luzhou 646000, People's Republic of China.
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Jiang S, Peng X, Chen Y, Dong B, Mao H. Fucoxanthin ameliorates Propionibacterium acnes-induced ear inflammation in mice by modulating the IκBα/NF-κB signaling pathway and inhibiting NF-κB nuclear translocation. PLoS One 2025; 20:e0322950. [PMID: 40333903 PMCID: PMC12057845 DOI: 10.1371/journal.pone.0322950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2024] [Accepted: 03/31/2025] [Indexed: 05/09/2025] Open
Abstract
BACKGROUND Acne vulgaris, a chronic inflammatory skin disorder, represents a pivotal research area in dermatology. Although fucoxanthin, a marine-derived carotenoid, displays potent anti-inflammatory activity, its therapeutic potential in acne pathogenesis remains underexplored. OBJECTIVE This study investigates fucoxanthin's effects on Propionibacterium acnes (P.acnes)-induced auricular inflammation in mice, focusing on its modulation of the IκBα/NF-κB signaling axis and inhibition of NF-κB nuclear translocation. METHODS Inflammation in the ear of mice was induced using a P.acnes injection model. The anti-inflammatory effects of fucoxanthin were verified by evaluating the levels of erythema, pathological damage, and inflammatory factors in the mice ear. An in vitro model was constructed to explore the regulatory mechanism of IkappaBalpha (IκBα)/nuclear factor-kappaB (NF-κB) pathway by fucoxanthin. RESULTS Fucoxanthin alleviated P. acnes-induced inflammatory pathology, reducing ear erythema. Mechanistically, it preserved IκBα stability, suppressed NF-κB nuclear translocation, and decreased proinflammatory cytokine production. CONCLUSION Fucoxanthin exerts anti-acne effects through coordinated inhibition of IκBα degradation and NF-κB nuclear translocation, establishing its potential as a targeted therapeutic agent for inflammatory acne.
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Affiliation(s)
- Shan Jiang
- Department of Dermatology, Renmin Hospital of Wuhan University, Wuhan City, Hubei Province, China
| | - Xiaoyan Peng
- Department of Dermatology, Renmin Hospital of Wuhan University, Wuhan City, Hubei Province, China
| | - Yan Chen
- Department of Dermatology, Renmin Hospital of Wuhan University, Wuhan City, Hubei Province, China
| | - Bingqi Dong
- Department of Dermatology, Renmin Hospital of Wuhan University, Wuhan City, Hubei Province, China
| | - Hu Mao
- Department of Dermatology, Renmin Hospital of Wuhan University, Wuhan City, Hubei Province, China
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Xie L, Zhang R, Hu C, Li T, Zhang ZP, Jin MY, Gao R, Zhang ZR, Zheng W, Ju Y, Guo JP. Experimental validation of the molecular mechanism of phlorizin in the treatment of diabetic retinopathy. Exp Eye Res 2025; 254:110329. [PMID: 40058722 DOI: 10.1016/j.exer.2025.110329] [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: 02/10/2024] [Revised: 03/05/2025] [Accepted: 03/07/2025] [Indexed: 03/14/2025]
Abstract
This study conducted an experiment to scrutinize the effect of phlorizin (Phl) on diabetic retinopathy (DR) and to delve into the related molecular mechanisms. Within this investigation, DR was induced in rats with diabetes mellitus (DM) by subjecting them to a regimen involving a high-fat and high-sugar diet, coupled with intraperitoneal administration of streptozotocin (STZ) at a dosage of 45 mg/kg. Retinal damage in DR rats was assessed by means of hematoxylin and eosin (HE) staining. The serum levels of inflammatory and angiogenic factors were also measured. Additionally, the levels of tight junction proteins, angiogenic proteins, and inflammatory proteins in the retinas of DR model rats were assessed using Western blot (WB),immunohistochemistry(IHC) and immunofluorescence(IF). Moreover, bioinformatics and network pharmacology methodologies were utilized to pinpoint intersecting genes linked to DR and to elucidate the mechanism of action of Phl. This involved screening with Venny, conducting Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG)analyses, constructing a Protein-Protein Interaction (PPI) network, and performing molecular docking analysis. The results of this study demonstrated that Phl significantly normalized fasting glucose levels and reduced body weight, thereby alleviating obesity in DR rats after 12 weeks. Furthermore, the serum levels of inflammatory and angiogenic factors were considerably reduced in the drug-treated rats. WB, IHC and IF revealed increased expression of the tight junction proteins zonula occludens-1(ZO-1) and occludin in the retinas of drug-treated DR rats, validating the observed findings. Molecular biology validation experiments based on the predictions by network pharmacology indicated a substantial decrease in the expression levels of vascular endothelial growth factor (VEGF), notch homolog 1 (Notch1), and hypoxia inducible factor-1 (HIF-1α) in the retina upon treatment with Phl. This reduction resulted in the inhibition of neovascularization. Furthermore, Phl exhibited inhibitory effects on inflammatory pathways, leading to a decrease in cytokine release. The overexpression of VEGF was identified as a factor diminishing brain-derived neurotrophic factor(BDNF) expression while increasing the expression levels of inflammatory proteins. Therefore, the results of this research demonstrate that Phl has the potential to protect the retina of DR rats by inhibiting VEGF expression. This protective effect may be associated with the modulation of the VEGF/BDNF/NF-κB signaling pathway.
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Affiliation(s)
- Lulu Xie
- Changchun University of Traditional Chinese Medicine, Chang Chun, China
| | - Ru Zhang
- Changchun University of Traditional Chinese Medicine, Chang Chun, China
| | - Chunjie Hu
- Affiliated Hospital of Changchun University of Traditional Chinese Medicine, Changchun, China
| | - Ting Li
- Affiliated Hospital of Changchun University of Traditional Chinese Medicine, Changchun, China
| | - Zhao-Peng Zhang
- Changchun University of Traditional Chinese Medicine, Chang Chun, China
| | - Mei-Ying Jin
- Changchun University of Traditional Chinese Medicine Third Clinical Hospital, China
| | - Rui Gao
- Changchun University of Traditional Chinese Medicine, Chang Chun, China
| | - Zhi-Run Zhang
- Changchun University of Traditional Chinese Medicine, Chang Chun, China
| | - Wei Zheng
- Affiliated Hospital of Changchun University of Traditional Chinese Medicine, Changchun, China.
| | - Yuan Ju
- Affiliated Hospital of Changchun University of Traditional Chinese Medicine, Changchun, China.
| | - Jun-Peng Guo
- Changchun University of Traditional Chinese Medicine, Chang Chun, China.
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An M, Huang J, Zhao J, Wang L, Liu Y. PDZK1 regulated by miR-145-5p protects against endothelial cell apoptosis and diabetic retinopathy by targeting mitochondrial function. Exp Eye Res 2025; 254:110314. [PMID: 40020896 DOI: 10.1016/j.exer.2025.110314] [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: 12/04/2024] [Revised: 02/13/2025] [Accepted: 02/25/2025] [Indexed: 03/03/2025]
Abstract
Mitochondria are a focus of biomedical research because of their role in apoptosis and diabetic retinopathy (DR) initiation and progression. However, the detailed mechanisms underlying mitochondrial disorders and endothelial dysfunction during DR remain elusive. We identified PDZ domain containing 1 (PDZK1) as a key factor linking endothelial mitochondrial dysfunction and cell apoptosis during DR progression. PDZK1 was downregulated by high concentrations of glucose in human retinal capillary endothelial cells (HRCECs) and decreased in serum from patients with DR. PDZK1 knockout induced endothelial cell apoptosis and an irregular and disordered arrangement of retinal cells, aggravating DR. Moreover, PDZK1 loss impaired endothelial mitochondrial function with accumulated damaged mitochondria, decreased mitochondrial DNA (mtDNA) content, and increased reactive oxygen species (ROS) production. Mechanistically, mRNA sequencing showed that PDZK1 deficiency in endothelial cells interfered with mitochondrial function by increasing ATF4 (Activating Transcription Factor 4) expression. Further studies showed that PDZK1 was inhibited by miR-145-5p. The expression of miR-145-5p was significantly upregulated in the serum of patients with DR and HRCECs with high glucose concentration, leading to endothelial dysfunction and DR progression. Our results suggested that PDZK1 deficiency is crucial in mediating retinal endothelial cell apoptosis and is associated with mitochondrial dysfunction. PDZK1 overexpression by upstream miRNA, or its downstream molecule, ATF4, may represent novel therapeutic approaches for DR treatment.
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Affiliation(s)
- Meixia An
- Department of Ophthalmology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China; The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China; Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China
| | - Jialuo Huang
- The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China; Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China
| | - Jian Zhao
- Department of Ophthalmology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China; The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China; Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China
| | - Lili Wang
- Department of Ophthalmology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China; The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China; Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China
| | - Yanli Liu
- Department of Ophthalmology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China; The Third School of Clinical Medicine, Southern Medical University, Guangzhou, China; Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, China.
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Saha A, Islam MM, Kumar R, Ismail AM, Garcia E, Gullapali RR, Chodosh J, Rajaiya J. Virus and cell specific HMGB1 secretion and subepithelial infiltrate formation in adenovirus keratitis. PLoS Pathog 2025; 21:e1013184. [PMID: 40367285 PMCID: PMC12101768 DOI: 10.1371/journal.ppat.1013184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2025] [Revised: 05/23/2025] [Accepted: 05/02/2025] [Indexed: 05/16/2025] Open
Abstract
A highly contagious infection caused by human adenovirus species D (HAdV-D), epidemic keratoconjunctivitis (EKC) results in corneal subepithelial infiltration (SEI) by leukocytes, the hallmark of the infection. To date, the pathogenesis of corneal SEI formation in EKC is unresolved. HMGB1 (high-mobility group box 1 protein) is an alarmin expressed in response to infection and a marker of sepsis. Earlier studies using a different adenovirus species, HAdV-C, showed retention of HMGB1 in the infected cell nucleus by adenovirus protein VII, enabling immune evasion. Here, using HAdV-D we show cell-specific HMGB1 secretion by infected cells, and provide an HAdV-D specific mechanism for SEI formation in EKC. HMGB1 was secreted only upon infection of human corneal epithelial cells, not from other cell types, and only upon infection by HAdV-D types associated with EKC. Acetylated HMGB1 translocation from the nucleus to the cytoplasm, then to the extracellular milieu, was tightly controlled by CRM1 and LAMP1, respectively. Primary stromal cells when stimulated by rHMGB1 expressed proinflammatory chemokines. In a novel 3D culture system in tune with the architecture of the cornea, HMGB1 released by infected corneal epithelial cells induced leukocytic infiltrates either directly and/or indirectly via stimulated stromal cells, which together explains SEI formation in EKC.
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Affiliation(s)
- Amrita Saha
- Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School, Boston, Massachusetts, United States of America
- Department of Molecular Genetics and Microbiology, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, United States of America
| | - Mohammad Mirazul Islam
- Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School, Boston, Massachusetts, United States of America
- Department of Ophthalmology and Visual Sciences, University of Ophthalmology and Visual Sciences, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, United States of America
| | - Rahul Kumar
- Department of Pathology, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, United States of America
| | - Ashrafali Mohamed Ismail
- Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Emanuel Garcia
- Department of Molecular Genetics and Microbiology, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, United States of America
| | - Rama R. Gullapali
- Department of Pathology, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, United States of America
| | - James Chodosh
- Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School, Boston, Massachusetts, United States of America
- Department of Molecular Genetics and Microbiology, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, United States of America
- Department of Ophthalmology and Visual Sciences, University of Ophthalmology and Visual Sciences, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, United States of America
| | - Jaya Rajaiya
- Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School, Boston, Massachusetts, United States of America
- Department of Molecular Genetics and Microbiology, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, United States of America
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Zhou H, Liu Y, Tian GG, Wu J. Nicotinamide mononucleotide promotes female germline stem cell proliferation by activating the H4K16ac-Hmgb1-Fyn-PLD signaling pathway through epigenetic remodeling. Cell Biosci 2025; 15:48. [PMID: 40247362 PMCID: PMC12004683 DOI: 10.1186/s13578-025-01387-w] [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: 02/04/2025] [Accepted: 04/02/2025] [Indexed: 04/19/2025] Open
Abstract
BACKGROUND Nicotinamide mononucleotide (NMN), an endogenous nucleotide essential for various physiological processes, has an unclear role and regulatory mechanisms in female germline stem cell (FGSC) development. RESULTS We demonstrate that NMN significantly enhances FGSC viability and proliferation. Quantitative acetylation proteomics revealed that NMN markedly increases the acetylation of histone H4 at lysine 16 (H4K16ac). Subsequent chromatin immunoprecipitation sequencing (ChIP-seq) and RNA sequencing (RNA-seq) identified high mobility group box 1 (Hmgb1) as a downstream target of H4K16ac, a finding further validated by ChIP-qPCR. Knockdown of Hmgb1 reduced FGSC proliferation by disrupting cell cycle progression, inducing apoptosis, and decreasing chromatin accessibility. High-throughput chromosome conformation capture (Hi-C) analysis showed that Hmgb1 knockdown induced A/B compartment switching, increased the number of topologically associating domains (TADs), and decreased chromatin loop formation in FGSCs. Notably, the chromatin loop at the promoter region of Fyn proto-oncogene (Fyn) disappeared following Hmgb1 knockdown. ChIP-qPCR and dual-luciferase reporter assays further confirmed the interaction between Hmgb1 and the Fyn promoter. Importantly, Fyn overexpression reversed the inhibitory effects of Hmgb1 knockdown on FGSC proliferation. Proteomic analysis suggested this rescue was mediated through the phospholipase D (PLD) signaling pathway, as Fyn overexpression selectively enhanced the phosphorylation of PLD1 at threonine 147 without affecting serine 561. Furthermore, treatment with 5-fluoro-2-indolyldechlorohaloamide, a PLD inhibitor, nullified the pro-proliferative effects of Fyn overexpression. CONCLUSIONS Our findings reveal that NMN promotes FGSC proliferation by activating the H4K16ac-Hmgb1-Fyn-PLD signaling pathway through epigenetic remodeling. These results deepen our understanding of FGSC proliferation and highlight potential therapeutic avenues for advancing FGSC applications in reproductive medicine.
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Affiliation(s)
- Hong Zhou
- Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Bio-X Institutes, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Yujie Liu
- Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Bio-X Institutes, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Geng G Tian
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Ji Wu
- Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorders (Ministry of Education), Bio-X Institutes, Shanghai Jiao Tong University, Shanghai, 200240, China.
- Key Laboratory of Fertility Preservation and Maintenance of Ministry of Education, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, 750004, China.
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Wang Y, Liu S, Zhou Q, Feng Y, Xu Q, Luo L, Lv H. Bioinformatics for the Identification of STING-Related Genes in Diabetic Retinopathy. Curr Eye Res 2025; 50:320-333. [PMID: 39704112 DOI: 10.1080/02713683.2024.2430223] [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: 04/13/2024] [Revised: 09/06/2024] [Accepted: 11/11/2024] [Indexed: 12/21/2024]
Abstract
PURPOSE Diabetic retinopathy (DR) is the most common complication of diabetes mellitus. Stimulator of interferon genes (STING) plays an important regulatory role in the transcription of several genes. This study aimed to mine and identify hub genes relevant to STING in DR. METHODS The STING-related genes (STING-RGs) were extracted from MSigDB database. Differentially expressed STING-RGs (DE-STING-RGs) were filtered by overlapping differentially expressed genes (DEGs) between DR and NC specimens and STING-RGs. A PPI network was established to mine hub genes. The ability of the hub genes to differentiate between DR and NC specimens was evaluated. Additionally, a ceRNA network was established to investigate the regulatory mechanisms of hub genes. Subsequently, the discrepancies in immune infiltration between DR and NC specimens were further explored. Additionally, we performed drug predictions. Finally, RT-qPCR of peripheral blood samples was used to validate the bioinformatics results. RESULTS A grand total of four genes (IKBKG, STAT6, NFKBIA, and FCGR2A) related to STING were identified for DR. The AUC values of all four hub genes were greater than 0.7, which indicated that the diagnostic value was acceptable. The ceRNA network contained four hub genes, 170 miRNAs, and 135 lncRNAs. In addition, immunoinfiltration analysis demonstrated that the abundance of activated B cells was notably different between the DR and NC specimens. Moreover, 32 drugs were included in the drug-gene network, with twelve drugs targeting STAT6, nine drugs targeting NFKBIA, four drugs targeted IKBKG, and seven drugs targeted FCGR2A. The expression of the four hub genes in blood samples determined by RT-qPCR was consistent with our analysis. CONCLUSION In conclusion, four hub genes (IKBKG, STAT6, NFKBIA, and FCGR2A) related to STING with a diagnostic value for DR were identified by bioinformatics analysis, which might provide new insights into the evaluation and treatment of DR.
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Affiliation(s)
- Yu Wang
- Department of Ophthalmology, Affiliatied Hospital of Southwest Medical University, Sichuan Province, Luzhou, China
| | - Siyan Liu
- Department of Ophthalmology, Affiliatied Hospital of Southwest Medical University, Sichuan Province, Luzhou, China
| | - Qi Zhou
- Department of Ophthalmology, Affiliatied Hospital of Southwest Medical University, Sichuan Province, Luzhou, China
| | - Yalin Feng
- Department of Ophthalmology, Affiliatied Hospital of Southwest Medical University, Sichuan Province, Luzhou, China
| | - Qin Xu
- Department of Ophthalmology, Affiliatied Hospital of Southwest Medical University, Sichuan Province, Luzhou, China
| | - Linbi Luo
- Department of Ophthalmology, Affiliatied Hospital of Southwest Medical University, Sichuan Province, Luzhou, China
| | - Hongbin Lv
- Department of Ophthalmology, Affiliatied Hospital of Southwest Medical University, Sichuan Province, Luzhou, China
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9
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Ji J, Hong F, Liu Y, Chu X, Song L, Zhu M, Lu Y, Hao C. Long Noncoding RNA GAS5 Contributes to Mycoplasma pneumoniae Pneumonia by Regulating NF-κB via miR-29c/HMGB1 Axis. TOHOKU J EXP MED 2025; 264:193-202. [PMID: 39019594 DOI: 10.1620/tjem.2024.j067] [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] [Indexed: 07/19/2024]
Abstract
Mycoplasma pneumoniae pneumonia (MPP) poses a major threat to pediatric health. Our previous study suggested that GAS5 level was elevated in the peripheral blood of MPP children. However, the mechanism by which GAS5 regulates lung inflammation Mycoplasma pneumoniae (MP) infection-induced remains unknown. An MPP mouse model was constructed by MP intranasal injection to enrich for alveolar macrophage (AM). Mouse AM was stimulated using lipid-associated membrane proteins (LAMPs) to mimic an in vitro pneumonia model, and transfection was used to achieve specific knockdown or overexpression of target genes. GAS5 level was significantly increased in AM of the MPP mouse model, and significantly and positively related with the mRNA level of HMGB1, but no physical binding between GAS5 and HMGB1 proteins. miR-29c level was significantly decreased in AM of the MPP mouse model and negatively related with the HMGB1. We found the specific binding of GAS5 to miR-29c, and the specific binding of miR-29c to the HMGB1 mRNA 3'UTR. miR-29c mimic and knockdown of HMGB1 both significantly impeded LAMPs-induced apoptosis, IL-6 and TNF-α secretion, and the NF-κB activation. Ectopic expression of GAS5 counteracted the effect of miR-29c mimic, and miR-29c inhibitor counteracted the effect of HMGB1 knockdown. Furthermore, silencing of GAS5 significantly alleviated MPP-induced inflammation and pathological lung injury in the MPP mouse model. GAS5/miR-29c/HMGB1 is highly involved in inflammation and lung histopathological injury in MPP disease progression by regulating the NF-κB signaling pathway.
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Affiliation(s)
- Juhua Ji
- Department of Respiratory Diseases, Children's Hospital of Soochow University
- Department of Pediatrics, The Second Affiliated Hospital of Nantong University, Nantong First People's Hospital
| | - Fei Hong
- Department of Pediatrics, The Second Affiliated Hospital of Nantong University, Nantong First People's Hospital
| | - Yi Liu
- Department of Orthopedics, The Second Affiliated Hospital of Nantong University, Nantong First People's Hospital
| | - Xiaobin Chu
- Department of Pediatrics, The Second Affiliated Hospital of Nantong University, Nantong First People's Hospital
| | - Lei Song
- Department of Pediatrics, The Second Affiliated Hospital of Nantong University, Nantong First People's Hospital
| | - Meijun Zhu
- Department of Pediatrics, The Second Affiliated Hospital of Nantong University, Nantong First People's Hospital
| | - Yan Lu
- Department of Pediatrics, The Second Affiliated Hospital of Nantong University, Nantong First People's Hospital
| | - Chuangli Hao
- Department of Respiratory Diseases, Children's Hospital of Soochow University
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Saha A, Islam MM, Kumar R, Ismail AM, Garcia E, Gullapali RR, Chodosh J, Rajaiya J. Virus and Cell Specific HMGB1 Secretion and Subepithelial Infiltrate Formation in Adenovirus Keratitis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2025:2025.01.07.631509. [PMID: 39829903 PMCID: PMC11741304 DOI: 10.1101/2025.01.07.631509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2025]
Abstract
A highly contagious infection caused by human adenovirus species D (HAdV-D), epidemic keratoconjunctivitis (EKC) results in corneal subepithelial infiltration (SEI) by leukocytes, the hallmark of the infection. To date, the pathogenesis of corneal SEI formation in EKC is unresolved. HMGB1 (high-mobility group box 1 protein) is an alarmin expressed in response to infection and a marker of sepsis. Earlier studies using a different adenovirus species, HAdV-C, showed retention of HMGB1 in the infected cell nucleus by adenovirus protein VII, enabling immune evasion. Here, using HAdV-D we show cell-specific HMGB1 secretion by infected cells, and provide an HAdV-D specific mechanism for SEI formation in EKC. HMGB1 was secreted only upon infection of human corneal epithelial cells, not from other cell types, and only upon infection by HAdV-D types associated with EKC. Acetylated HMGB1 translocation from the nucleus to the cytoplasm, then to the extracellular milieu, was tightly controlled by CRM1 and LAMP1, respectively. Primary stromal cells when stimulated by rHMGB1 expressed proinflammatory chemokines. In a novel 3D culture system in tune with the architecture of the cornea, HMGB1 released by infected corneal epithelial cells induced leukocytic infiltrates either directly and/or indirectly via stimulated stromal cells, which together explains SEI formation in EKC.
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Jalali A, Jafari F, Behnamrad S, Zarshenas MM, Zhang X, Kashkooe A. The Genus Paeonia: A Review of the Targeted Signaling Pathways and Underlying Mechanisms of Pharmacological and Clinical Properties. Curr Drug Discov Technol 2025; 22:e100724231842. [PMID: 38988165 DOI: 10.2174/0115701638318395240703115522] [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: 03/21/2024] [Revised: 05/15/2024] [Accepted: 05/29/2024] [Indexed: 07/12/2024]
Abstract
INTRODUCTION The Paeoniaceae family contains only the Paeonia genus and is considered a major group of flowering plants. Several traditional and pharmacological applications of Paeoniaceae herbs have been described. This paper aimes to determine the pharmacological activities of the most prevalent herbs from the genus Paeonia by focusing on their underlying mechanism of action and signaling pathways, providing insight for further in-depth research on the medicinal resources of Paeonia. METHODS The "Paeoniaceae" keyword was searched from 1st January 1995 to 15th May 2024 through the PubMed and Scopus databases. Only papers related to pharmacology, pharmaceutics, and toxicology were extracted. The possible pharmacological activity of the Paeonia plants, including their underlying mechanisms of action and signaling pathways, was subsequently discussed. RESULTS Following our venture, only 15 Paeonia herbs were adequately evaluated for their pharmacological applications. Paeonia lactiflora Pall., Paeonia suffruticosa Andrews, and Paeonia emodi Royle are among the most prevalent Paeonia plants that have attracted increased attention in modern pharmacological studies. Paeonia herbs possess various pharmacological applications, such as antiinflammatory, anti-allergic, anticancer, antimicrobial, cardiovascular protective, cosmetic and skincare, radical scavenging, hepatoprotective and anti-ulcerative, anti-diabetic, musculoskeletal, and neuroprotective effects, and can be used as alternative therapies under critical medical conditions. CONCLUSION Among the applications of Paeonia herbs, anti-inflammatory and antioxidant activities are critical, as most other pharmacological effects are attributed to them. In other words, nuclear factor (NF)-κB and nuclear factor erythroid 2-related factor 2 (Nrf2) can be considered the most important signaling pathways involved in the pharmacological activity of Paeonia herbs.
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Affiliation(s)
- Atefeh Jalali
- Medicinal Plants Processing Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
- Department of Phytopharmaceuticals (Traditional Pharmacy), School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Fereshteh Jafari
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Shima Behnamrad
- Medicinal Plants Processing Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad M Zarshenas
- Medicinal Plants Processing Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
- Department of Phytopharmaceuticals (Traditional Pharmacy), School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
- Epilepsy Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Xiuxin Zhang
- Institute of Vegetables and Flowers, Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Chinese Academy of Agricultural Sciences, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Ali Kashkooe
- Medicinal Plants Processing Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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Chu C, Zhang Y, Yu R, Liu B, Wang B, Xu Z, Chin KL. MEF2A restrains cisplatin resistance in gastric cancer cells by modulating NFKBIA/NF-κB signaling pathway. J Investig Med 2025; 73:54-66. [PMID: 39324215 DOI: 10.1177/10815589241290199] [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] [Indexed: 09/27/2024]
Abstract
Cisplatin (DDP) resistance represents a pivotal contributing factor to chemotherapy failure and adverse patient outcomes in gastric cancer (GC). The objective of the present study was to investigate the roles and underlying mechanisms of myocyte enhancer factor 2A (MEF2A) in DDP resistance in GC. GC cell line AGS and MKN-45 cells were applied to construct DDP-resistant cells. CCK-8, colony formation, and flow cytometry methods were validated for determining the IC50 value of DDP and cell survival of GC cells. qRT-PCR and western blotting analysis quantified the molecular levels at mRNA and protein, respectively. Chromatin immunoprecipitation and dual-luciferase assays validated the molecular relationship between MEF2A and NF-κB inhibitor alpha (NFKBIA). Roles of MEF2A in in vivo were performed employing a xenograft model. The results showed that NFKBIA was greatly decreased in DDP-resistant AGS and MKN-45 cells compared to their respective parental cells. Increasing NFKBIA expression impaired the IC50 value of DDP and cell survival in DDP-resistant cells, while these alterations were rescued upon TNF-α treatment. Mechanistically, MEF2A acts as a transcriptional activator of NFKBIA, which led to the reduction of phosphorylation of p65 and cytoplasmic retention. Moreover, MEF2A overexpression promoted the sensitivity of GC cells to DDP and tumor growth, whereas these effects were partially reversed by NFKBIA silence. Collectively, MEF2A mitigated the DDP resistance in GC cells by modulatory actions on the NFKBIA/NF-κB signaling, shedding light on MEF2A/NFKBIA might be a promising intervention target for improving DDP resistance in GC.
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Affiliation(s)
- Chenghao Chu
- Department of General Surgery, Anqing First People's Hospital, Anqing, Anhui Province, P. R. China
- Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah, Kota Kinabalu, Sabah, Malaysia
| | - Yongwei Zhang
- Department of General Surgery, Anqing First People's Hospital, Anqing, Anhui Province, P. R. China
- Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah, Kota Kinabalu, Sabah, Malaysia
| | - Ruiran Yu
- Department of Oncology, Anqing First People's Hospital, Anqing, Anhui Province, P. R. China
| | - Bin Liu
- Department of General Surgery, Anqing First People's Hospital, Anqing, Anhui Province, P. R. China
- Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah, Kota Kinabalu, Sabah, Malaysia
| | - Bin Wang
- Department of General Surgery, Anqing First People's Hospital, Anqing, Anhui Province, P. R. China
| | - Zhangxuan Xu
- Department of General Surgery, Anqing First People's Hospital, Anqing, Anhui Province, P. R. China
| | - Kai Ling Chin
- Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah, Kota Kinabalu, Sabah, Malaysia
- Borneo Medical and Health Research Centre, Faculty of Medicine and Health Sciences, Universiti Malaysia Sabah, Kota Kinabalu, Malaysia
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Zuo J, Wu D, Zhang Y, Luo H, Jing G, Yuan M, Fang Q, Yang C, Wang X, Wu X, Song X. VCPIP1 negatively regulates NF-κB signaling pathways by deubiquitinating and stabilizing Erbin in MDP-stimulated macrophages. Int Immunopharmacol 2024; 143:113622. [PMID: 39550842 DOI: 10.1016/j.intimp.2024.113622] [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: 08/21/2024] [Revised: 11/05/2024] [Accepted: 11/10/2024] [Indexed: 11/19/2024]
Abstract
Macrophages are present in all tissues and body compartments under homeostatic physiological conditions. Importantly, they play a key role in pathological inflammatory processes when disturbed. They can quickly produce large amounts of inflammatory cytokines in response to danger signals. Macrophages can recognize muramyl dipeptide (MDP) through nucleotide-binding oligomerization domain (NOD)-like receptors, subsequently activating the NF-κB signaling pathway and producing proinflammatory cytokines. Erbin can bind to NOD2 and inhibit MDP-induced NF-κB activation, thus participating in the regulation of inflammatory response. Stabilizing or enhancing Erbin expression is essential for suppressing inflammatory responses. In this study, we used a deubiquitination enzyme plasmid library to screen for a key deubiquitinase, VCPIP1, which interacts with Erbin and influences its stability through deubiquitination modification. We investigated whether VCPIP1 affects inflammation using MDP-stimulated RAW 264.7 and BMDMs cells. The results showed that VCPIP1 deficiency reduced Erbin expression and increased NF-κB phosphorylation. Additionally, VCPIP1 deficiency promoted the release of inflammatory factors (IL-1β, IL-6, and TNF-α) in RAW 264.7 cells and BMDMs. This study further expands the role of deubiquitinases (DUBs) in inflammation, providing new insights for the prevention and treatment of sepsis, tumors, immune diseases, and other inflammatory reactions.
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Affiliation(s)
- Jing Zuo
- The Research Centre of Anesthesiology and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan 430071, Wuchang, 169 Donghu Road, Hubei Province, China
| | - Die Wu
- The Research Centre of Anesthesiology and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan 430071, Wuchang, 169 Donghu Road, Hubei Province, China
| | - Ying Zhang
- Department of Anesthesiology, Dong Feng Hospital of Hubei Medical University, Shiyan 442000, Zhangwan, 16 Daling Road, Hubei Province, China
| | - Huan Luo
- Department of Anesthesiology, Cancer Hospital of Chongqing University, Chongqing 400030, Shapingba, 181 Hanyu Road, Chongqing Municipality, China
| | - Guoqing Jing
- The Research Centre of Anesthesiology and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan 430071, Wuchang, 169 Donghu Road, Hubei Province, China
| | - Min Yuan
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan 430060, Wuchang, 238 Liberation Road, Hubei Province, China
| | - Qing Fang
- The Research Centre of Anesthesiology and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan 430071, Wuchang, 169 Donghu Road, Hubei Province, China
| | - Cheng Yang
- The Research Centre of Anesthesiology and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan 430071, Wuchang, 169 Donghu Road, Hubei Province, China
| | - Xing Wang
- The Research Centre of Anesthesiology and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan 430071, Wuchang, 169 Donghu Road, Hubei Province, China
| | - Xiaojing Wu
- Department of Anesthesiology, Renmin Hospital of Wuhan University, Wuhan 430060, Wuchang, 238 Liberation Road, Hubei Province, China.
| | - Xuemin Song
- The Research Centre of Anesthesiology and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan 430071, Wuchang, 169 Donghu Road, Hubei Province, China.
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Padovani-Claudio DA, Morales MS, Smith TE, Ontko CD, Namburu NS, Palmer SA, Jhala MG, Ramos CJ, Capozzi ME, McCollum GW, Penn JS. Induction, amplification, and propagation of diabetic retinopathy-associated inflammatory cytokines between human retinal microvascular endothelial and Müller cells and in the mouse retina. Cell Signal 2024; 124:111454. [PMID: 39384004 DOI: 10.1016/j.cellsig.2024.111454] [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: 07/30/2024] [Revised: 09/19/2024] [Accepted: 10/03/2024] [Indexed: 10/11/2024]
Abstract
Ocular levels of IL-1β, TNFα, IL-8, and IL-6 correlate with progression of diabetic retinopathy (DR). Müller cells (MC), which are crucial to maintaining retinal homeostasis, are targets and sources of these cytokines. We explored the relative capacities of these four DR-associated cytokines to amplify inflammatory signal expression both in and between human MC (hMC) and retinal microvascular endothelial cells (hRMEC) and in the mouse retina. Of the four cytokines, IL-1β was the most potent stimulus of transcriptomic alterations in hMC and hRMEC in vitro, as well as in the mouse retina after intravitreal injection in vivo. Stimulation with IL-1β significantly induced expression of all four transcripts in hMC and hRMEC. TNFα significantly induced expression of some, but not all, of the four transcripts in each cell, while neither IL-8 nor IL-6 showed significant induction in either cell. Similarly, conditioned media (CM) derived from hMC or hRMEC treated with IL-1β, but not TNFα, upregulated inflammatory cytokine transcripts in the reciprocal cell type. hRMEC responses to hMC-derived CM were dependent on IL-1R activation. In addition, we observed a correlation between cytokine expression changes following direct and CM stimulation and NFκB-p65 nuclear translocation in both hMC and hRMEC. Finally, in mice, intravitreal injections of IL-1β, but not TNFα, induced retinal expression of Il1b and CXCL8 homologues Cxcl1, Cxcl2, Cxcl3, and Cxcl5, encoding pro-angiogenic chemokines. Our results suggest that expression of IL-1β, TNFα, IL-8, and IL-6 may be initiated, propagated, and sustained by autocrine and paracrine signals in hRMEC and hMC through a process involving IL-1β and NFκB. Targeting these signals may help thwart inflammatory amplification, preventing progression to vision-threatening stages and preserving sight.
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Affiliation(s)
- Dolly Ann Padovani-Claudio
- Department of Ophthalmology and Visual Sciences, Vanderbilt University Medical Center, 1211 Medical Center Dr., Nashville, TN 37232, USA.
| | - Monica S Morales
- Department of Ophthalmology and Visual Sciences, Vanderbilt University Medical Center, 1211 Medical Center Dr., Nashville, TN 37232, USA.
| | - Taylor E Smith
- Department of Ophthalmology and Visual Sciences, Vanderbilt University Medical Center, 1211 Medical Center Dr., Nashville, TN 37232, USA.
| | - Cayla D Ontko
- Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, 1161 21st Ave S., Nashville, TN 37232, USA.
| | - Neeraj S Namburu
- College of Arts and Sciences, Vanderbilt University, 2400 Vanderbilt Pl., Nashville, TN 37232, USA.
| | - Samuel A Palmer
- Department of Ophthalmology and Visual Sciences, Vanderbilt University Medical Center, 1211 Medical Center Dr., Nashville, TN 37232, USA.
| | - Marvarakumari G Jhala
- Department of Ophthalmology and Visual Sciences, Vanderbilt University Medical Center, 1211 Medical Center Dr., Nashville, TN 37232, USA.
| | - Carla J Ramos
- Department of Ophthalmology and Visual Sciences, Vanderbilt University Medical Center, 1211 Medical Center Dr., Nashville, TN 37232, USA.
| | - Megan E Capozzi
- Department of Medicine, University of Washington, 1959 NE Pacific Street, Seattle, WA 98195, USA.
| | - Gary W McCollum
- Department of Ophthalmology and Visual Sciences, Vanderbilt University Medical Center, 1211 Medical Center Dr., Nashville, TN 37232, USA.
| | - John S Penn
- Department of Ophthalmology and Visual Sciences, Vanderbilt University Medical Center, 1211 Medical Center Dr., Nashville, TN 37232, USA; Department of Molecular Physiology and Biophysics, Vanderbilt University School of Medicine, 1161 21st Ave S., Nashville, TN 37232, USA.
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15
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Liu J, Gao Y, Zhang X, Hao Z, Zhang H, Gui R, Liu F, Tong C, Wang X. Transcriptome sequencing analysis of bovine mammary epithelial cells induced by lipopolysaccharide. Anim Biotechnol 2024; 35:2290527. [PMID: 38141161 DOI: 10.1080/10495398.2023.2290527] [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] [Indexed: 12/24/2023]
Abstract
Mastitis in cows is caused by the inflammation of the mammary glands due to an infection by external pathogenic bacteria. Mammary gland epithelial cells, which are in direct contact with the external environment, are responsible for the first line of defense of the mammary gland against pathogenic bacteria, playing an essential role in immune defense. To investigate the mechanism of bovine mammary epithelial cells in the inflammatory process, we treated the cells with LPS for 12 hours and analyzed the changes in mRNA by transcriptome sequencing. The results showed that compared to the control group, the LPS treatment group had 121 up-regulated genes and 18 down-regulated genes. GO and KEGG enrichment analysis revealed that these differential genes were mainly enriched in the IL-17 signaling pathway, Legionellosis, Cytokine-cytokine receptor interaction, NF-kappa B signaling pathway, and other signaling pathways. Furthermore, the expression of GRO1 and CXCL3 mRNAs increased significantly after LPS treatment. These findings provide new insights for the treatment of mastitis in cows in the future.
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Affiliation(s)
- Jingjing Liu
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan Province, P. R. China
| | - Yingkui Gao
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan Province, P. R. China
| | - Xing Zhang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan Province, P. R. China
| | - Zhonghua Hao
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan Province, P. R. China
| | - Huaqiang Zhang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan Province, P. R. China
| | - Rong Gui
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan Province, P. R. China
| | - Fang Liu
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan Province, P. R. China
| | - Chao Tong
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan Province, P. R. China
- Wuhu Overseas Student Pioneer Park, Wuhu, Anhui, China
| | - Xuebing Wang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan Province, P. R. China
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16
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Fan J, Gillespie KP, Mesaros C, Blair IA. HMGB2-induced calreticulin translocation required for immunogenic cell death and ferroptosis of cancer cells are controlled by the nuclear exporter XPO1. Commun Biol 2024; 7:1234. [PMID: 39354146 PMCID: PMC11445383 DOI: 10.1038/s42003-024-06930-y] [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: 03/26/2024] [Accepted: 09/20/2024] [Indexed: 10/03/2024] Open
Abstract
Cisplatin and oxaliplatin cause the secretion of high mobility group box 1 (HMGB1) protein from cancer cells, which is necessary for initiation of immunogenic cell death (ICD). Calreticulin (CRT) translocation from the endoplasmic reticulum to the plasma membrane is also required; oxaliplatin induces this translocation but cisplatin does not. We have discovered that oxaliplatin causes the secretion of both HMGB1 and HMGB2 from the cell nucleus into the extracellular milieu. We previously showed that cisplatin-mediated secretion of HMGB1 is controlled by the nuclear exporter XPO1 (chromosomal maintenance 1; CRM1). We now find that XPO1 regulates oxaliplatin-mediated secretion of both HMGB1 and HMGB2. XPO1 inhibition causes nuclear accumulation of both proteins, inhibition of oxaliplatin-mediated ferroptosis of colon cancer cells, and inhibition of CRT translocation to the plasma membrane of lung and colon cancer cells. Incubation of cancer cells with cell targeted (CT)-HMGB2 confirmed that HMGB2 is required for the CRT translocation. Furthermore, CT-HMGB2 is three orders of magnitude more potent at inducing CRT translocation than oxaliplatin.
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Affiliation(s)
- Jingqi Fan
- Penn/CHOP Center of Excellence in Friedreich's Ataxia, Center of Excellence in Environmental Toxicology, and Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Kevin P Gillespie
- Penn/CHOP Center of Excellence in Friedreich's Ataxia, Center of Excellence in Environmental Toxicology, and Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Clementina Mesaros
- Penn/CHOP Center of Excellence in Friedreich's Ataxia, Center of Excellence in Environmental Toxicology, and Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Ian A Blair
- Penn/CHOP Center of Excellence in Friedreich's Ataxia, Center of Excellence in Environmental Toxicology, and Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
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17
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Liao L, Chen J, Peng S. hsa_circ_0000047 targeting miR-6720-5p/CYB5R2 axis alleviates inflammation and angiogenesis in diabetic retinopathy. Arch Physiol Biochem 2024; 130:537-545. [PMID: 36971486 DOI: 10.1080/13813455.2023.2190055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 03/01/2023] [Indexed: 03/29/2023]
Abstract
Context: Diabetic retinopathy (DR) is a common complication of diabetes mellitus (DM). Circular RNAs (circRNAs) act as key regulators of DR development by regulating inflammation and angiogenesis.Objective: This study aimed to elucidate the function and mechanism of hsa_circ_0000047 in DR.Materials and methods: High glucose (HG) was used to induce human retinal microvascular endothelial cells (hRMECs) to construct a DR model in vitro. Qualitative real-time polymerase chain reaction (qRT-PCR) or western blotting were used to detected the levels of hsa_circ_0000047, miR-6720-5p, and CYB5R2 in DR and HG-indeced hRMECs. Cell functional experiments were performed to detect the change of viability, inflammation, migration, invasion, and angiogenesis of HG-induced hRMECs. Besides, the correlation between miR-6720-5p and hsa_circ_0000047/CYB5R2 was confirmed by luciferase assay and Pearson correlation analysis.Results: hsa_circ_0000047 and CYB5R2 were downregulated in DR, whereas miR-6720-5p was upregulated in DR. Cell functional experiments showed that hsa_circ_0000047 overexpression restrained viability, inflammation, migration, invasion, and angiogenesis of HG-induced hRMECs. Regarding mechanism, hsa_circ_0000047 could sponge miR-6720-5p to regulate CYB5R2 expression in hRMECs. Additionally, CYB5R2 knockdown reversed the effects of hsa_circ_0000047 overexpression on HG-induced hRMECs.Conclusion: Our study revealed that hsa_circ_0000047 alleviated inflammation and angiogenesis in HG-induced hRMECs by targeting the miR-6720-5p/CYB5R2 axis, which may be a novel biomarker for DR therapy.
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Affiliation(s)
- Lin Liao
- Department of Ophthalmology, Wuhan Fourth Hospital, Puai Hospital, Wuhan, China
| | - Jinpeng Chen
- Department of Ophthalmology, Ezhou Central Hospital, Ezhou, China
| | - Sheng Peng
- Department of Cardiology, Wuhan Fourth Hospital, Puai Hospital, Wuhan, China
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Yang YF, Yuan L, Li XY, Liu Q, Jiang WJ, Jiao TQ, Li JQ, Ye MY, Niu Y, Nan Y. Molecular mechanisms of Buqing granule for the treatment of diabetic retinopathy: Network pharmacology analysis and experimental validation. World J Diabetes 2024; 15:1942-1961. [PMID: 39280184 PMCID: PMC11372640 DOI: 10.4239/wjd.v15.i9.1942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 07/05/2024] [Accepted: 07/31/2024] [Indexed: 08/27/2024] Open
Abstract
BACKGROUND Diabetic retinopathy (DR) is a common microvascular complication of diabetes mellitus. Its blindness rate is high; therefore, finding a reasonable and safe treatment plan to prevent and control DR is crucial. Currently, there are abundant and diverse research results on the treatment of DR by Chinese medicine Traditional Chinese medicine compounds are potentially advantageous for DR prevention and treatment because of its safe and effective therapeutic effects. AIM To investigate the effects of Buqing granule (BQKL) on DR and its mechanism from a systemic perspective and at the molecular level by combining network pharmacology and in vivo experiments. METHODS This study collected information on the drug targets of BQKL and the therapeutic targets of DR for intersecting target gene analysis and protein-protein interactions (PPI), identified various biological pathways related to DR treatment by BQKL through Gene Ontology and Kyoto Encyclopedia of Genes and Genomes enrichment analyses, and preliminarily validated the screened core targets by molecular docking. Furthermore, we constructed a diabetic rat model with a high-fat and high-sugar diet and intraperitoneal streptozotocin injection, and administered the appropriate drugs for 12 weeks after the model was successfully induced. Body mass and fasting blood glucose and lipid levels were measured, and pathological changes in retinal tissue were detected by hematoxylin and eosin staining. ELISA was used to detect the oxidative stress index expression in serum and retinal tissue, and immunohistochemistry, real-time quantitative reverse transcription PCR, and western blotting were used to verify the changes in the expression of core targets. RESULTS Six potential therapeutic targets of BQKL for DR treatment, including Caspase-3, c-Jun, TP53, AKT1, MAPK1, and MAPK3, were screened using PPI. Enrichment analysis indicated that the MAPK signaling pathway might be the core target pathway of BQKL in DR treatment. Molecular docking prediction indicated that BQKL stably bound to these core targets. In vivo experiments have shown that compared with those in the Control group, rats in the Model group had statistically significant (P < 0.05) severe retinal histopathological damage; elevated blood glucose, lipid, and malondialdehyde (MDA) levels; increased Caspase-3, c-Jun, and TP53 protein expression; and reduced superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) levels, ganglion cell number, AKT1, MAPK1, and MAPK3 protein expression. Compared with the Model group, BQKL group had reduced histopathological retinal damage and the expression of blood glucose and lipids, MDA level, Caspase-3, c-Jun and TP53 proteins were reduced, while the expression of SOD, GSH-Px level, the number of ganglion cells, AKT1, MAPK1, and MAPK3 proteins were elevated. These differences were statistically significant (P < 0.05). CONCLUSION BQKL can delay DR onset and progression by attenuating oxidative stress and inflammatory responses and regulating Caspase-3, c-Jun, TP53, AKT1, MAPK1, and MAPK3 proteins in the MAPK signaling pathway mediates these alterations.
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Affiliation(s)
- Yi-Fan Yang
- Key Laboratory of Ningxia Minority Medicine Modernization Ministry of Education, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Ling Yuan
- College of Pharmacy, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Xiang-Yang Li
- Traditional Chinese Medicine College, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Qian Liu
- School of Clinical Medicine, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Wen-Jie Jiang
- Key Laboratory of Ningxia Minority Medicine Modernization Ministry of Education, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Tai-Qiang Jiao
- Traditional Chinese Medicine College, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Jia-Qing Li
- Key Laboratory of Ningxia Minority Medicine Modernization Ministry of Education, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Meng-Yi Ye
- Traditional Chinese Medicine College, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Yang Niu
- Key Laboratory of Ningxia Minority Medicine Modernization Ministry of Education, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
- Traditional Chinese Medicine College, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Yi Nan
- Key Laboratory of Ningxia Minority Medicine Modernization Ministry of Education, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
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Chen Z, Wang C, Li M, Cai S, Liu X. SPRED3 regulates the NF-κB signaling pathway in thyroid cancer and promotes the proliferation. Sci Rep 2024; 14:20506. [PMID: 39227612 PMCID: PMC11372091 DOI: 10.1038/s41598-024-61075-6] [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: 06/19/2023] [Accepted: 04/30/2024] [Indexed: 09/05/2024] Open
Abstract
SPRED3 (Sprouty-related EVH1 domain containing 3) mutants are depicted in various cancers, however, nothing is known about its biofunction in thyroid cancer (THCA). Bioinformatic analyses were conducted to ascertain the level of SPRED3 expression in THCA tissues and its importance in the prognosis of THCA patients. Flag-SPRED3 plasmid and SPRED3-knockout vector were developed to overexpress or deplete the SPRED3 expression in THCA cells. The function of SPRED3 on THCA cell proliferation was examined using the colony formation assay and CCK8 assay. The effect of SPRED3 expression on the transcriptional activity of NF-κB was also examined using luciferase reporter assays. High SPRED3 expression was associated with unfavorable clinical outcomes, advanced tumor characteristics, and traditional molecular markers of papillary thyroid cancer in THCA patients. Genetic analysis revealed differences in mutation rates in key genes between SPRED3-high and SPRED3-low THCA cases. It is also revealed that SPRED3 influenced the immune microenvironment, with increased stromal and immune scores and altered immune cell infiltration. Functionally, SPRED3 overexpression enhanced THCA cell viability and colony formation, while its depletion reduced cell growth and proliferation. In vivo experiments in mice confirmed the inhibitory effect of SPRED3 depletion on tumor growth. Mechanically, we found that SPRED3 activated the NF-κB signaling. For the first time, we found that SPRED3 promotes THCA cell proliferation via the NF-κB signaling pathway. This finding may provide insight into SPRED3's prognostic potential in thyroid cancer and provide the rationale for SPRED3-targeted druggable interventions.
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Affiliation(s)
- Zhiping Chen
- Department of Thyroid Surgery, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, 362000, Fujian, China
| | - Congren Wang
- Department of Thyroid Surgery, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, 362000, Fujian, China
| | - Mingzhu Li
- Department of Thyroid Surgery, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, 362000, Fujian, China
| | - Shaoyang Cai
- Department of Thyroid Surgery, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, 362000, Fujian, China
| | - Xiaoyu Liu
- Department of Thyroid Surgery, Quanzhou First Hospital Affiliated to Fujian Medical University, Quanzhou, 362000, Fujian, China.
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Zhang X, Qiu W, Huang J, Pang X, Su Y, Ye J, Zhou S, Tang Z, Wang R, Su R. Insulin combined with N-acetylcysteine attenuates type 1 diabetes-induced splenic inflammatory injury in canines by inhibiting the MAPKs-NF-κB signaling pathway and pyroptosis. J Diabetes Complications 2024; 38:108805. [PMID: 39089052 DOI: 10.1016/j.jdiacomp.2024.108805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 07/05/2024] [Accepted: 07/06/2024] [Indexed: 08/03/2024]
Abstract
PURPOSE Type 1 diabetes (T1DM) is a chronic metabolic disorder that can cause damage to multiple organs including the spleen. Sole insulin therapy is not satisfactory. This study aims to investigate the effects and mechanisms of combined treatment with insulin and N-acetylcysteine (NAC) on spleen damage in T1DM canines, in order to identify drugs that may better assist patients in the management of diabetes and its complications. METHODS The canine model of T1DM was established by intravenous injection of alloxan (ALX) and streptozotocin (STZ). The therapeutic effects of insulin and NAC were evaluated by clinical manifestations, spleen protein and mRNA expression. RESULTS The results indicate that the combined treatment of insulin and NAC can alleviate hyperglycemia and hematologic abnormalities, improve splenic histopathological changes, prevent fibrous tissue proliferation, and glycogen deposition. In addition, we observed that this combination treatment significantly suppressed the protein expression of p-P65/P65 (17.6 %, P < 0.05), NLRP3 (46.8 %, P < 0.05), and p-P38/P38 (37.1 %, P < 0.05) induced by T1DM when compared to insulin treatment alone. Moreover, it also significantly decreased the mRNA expression of TLR4 (45.0 %, P < 0.01), TNF-α (30.3 %, P < 0.05), and NLRP3 (43.3 %, P < 0.05). CONCLUSIONS This combination has the potential to mitigate splenic inflammatory injury in T1DM canines by suppressing the activation of MAPKs-NF-κB pathway and pyroptosis. These findings provide a reference for the treatment strategies of diabetes and its complications.
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Affiliation(s)
- Xinting Zhang
- College of Veterinary Medicine, South China Agricultural University, 483 Wushan road, Tianhe district, Guangzhou, 510642, People's Republic of China
| | - Wenyue Qiu
- College of Veterinary Medicine, South China Agricultural University, 483 Wushan road, Tianhe district, Guangzhou, 510642, People's Republic of China
| | - Jianjia Huang
- College of Veterinary Medicine, South China Agricultural University, 483 Wushan road, Tianhe district, Guangzhou, 510642, People's Republic of China
| | - Xiaoyue Pang
- College of Veterinary Medicine, South China Agricultural University, 483 Wushan road, Tianhe district, Guangzhou, 510642, People's Republic of China
| | - Yiman Su
- College of Veterinary Medicine, South China Agricultural University, 483 Wushan road, Tianhe district, Guangzhou, 510642, People's Republic of China
| | - Jiali Ye
- College of Veterinary Medicine, South China Agricultural University, 483 Wushan road, Tianhe district, Guangzhou, 510642, People's Republic of China
| | - Shuilian Zhou
- College of Veterinary Medicine, South China Agricultural University, 483 Wushan road, Tianhe district, Guangzhou, 510642, People's Republic of China
| | - Zhaoxin Tang
- College of Veterinary Medicine, South China Agricultural University, 483 Wushan road, Tianhe district, Guangzhou, 510642, People's Republic of China
| | - Rongmei Wang
- Henry Fok College of Biology and Agriculture, Shaoguan University, No. 288, Daxue Road, Zhenjiang District, Shaoguan, 512005, People's Republic of China
| | - Rongsheng Su
- College of Veterinary Medicine, South China Agricultural University, 483 Wushan road, Tianhe district, Guangzhou, 510642, People's Republic of China.
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21
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Wang X, Wang L, Cheng B, Wan Q, Wang J, Chen J, Zhu Z, Pei X. Mechanochemically Reprogrammed Tantalum Interfaces Enhance Osseointegration Via Immunomodulation. ACS APPLIED MATERIALS & INTERFACES 2024; 16:44451-44466. [PMID: 39141574 DOI: 10.1021/acsami.4c08533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/16/2024]
Abstract
Bone and tooth defects can considerably affect the quality of life and health of patients, and orthopedic implants remain the primary method of addressing such defects. However, implant materials cannot coordinate with the immune microenvironment because of their biological inertness, which may lead to implant loosening or failure. Motivated by the microstructure of nacre, we engineered a biomimetic micro/nanoscale topography on a tantalum surface using a straightforward method. This comprised an organized array of tantalum nanotubes arranged in a brick wall structure, with epigallocatechin gallate acting as "mortar." The coating improved the corrosion resistance, biocompatibility, and antioxidant properties. In vitro and in vivo evaluations further confirmed that coatings can create a favorable bone immune microenvironment through the synergistic effects of mechanochemistry and enhance bone integration. This research offers a new viewpoint on the creation of sophisticated functional implants, possessing vast potential for use in the regeneration and repair of bone tissue.
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Affiliation(s)
- Xu Wang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Liang Wang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Bin Cheng
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Qianbing Wan
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Jian Wang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Junyu Chen
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Zhou Zhu
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
| | - Xibo Pei
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China
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22
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Alanazi AH, Selim MS, Yendamuri MR, Zhang D, Narayanan SP, Somanath PR. The impact of diabetes mellitus on blood-tissue barrier regulation and vascular complications: Is the lung different from other organs? Tissue Barriers 2024:2386183. [PMID: 39072526 DOI: 10.1080/21688370.2024.2386183] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 07/12/2024] [Accepted: 07/16/2024] [Indexed: 07/30/2024] Open
Abstract
Diabetes Mellitus presents a formidable challenge as one of the most prevalent and complex chronic diseases, exerting significant strain on both patients and the world economy. It is recognized as a common comorbidity among severely ill individuals, often leading to a myriad of micro- and macro-vascular complications. Despite extensive research dissecting the pathophysiology and molecular mechanisms underlying vascular complications of diabetes, relatively little attention has been paid to potential lung-related complications. This review aims to illuminate the impact of diabetes on prevalent respiratory diseases, including chronic obstructive pulmonary disease (COPD), acute respiratory distress syndrome (ARDS), idiopathic pulmonary fibrosis (IPF), tuberculosis (TB), pneumonia infections, and asthma, and compare the vascular complications with other vascular beds. Additionally, we explore the primary mechanistic pathways contributing to these complications, such as the expression modulation of blood-tissue-barrier proteins, resulting in increased paracellular and transcellular permeability, and compromised immune responses rendering diabetes patients more susceptible to infections. The activation of inflammatory pathways leading to cellular injury and hastening the onset of these respiratory complications is also discussed.
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Affiliation(s)
- Abdulaziz H Alanazi
- Clinical and Experimental Therapeutics, University of Georgia, Augusta, GA, USA
- Charlie Norwood VA Medical Center, Augusta, GA, USA
- Department of Clinical Practice, College of Pharmacy, Northern Border University, Rafha, Saudi Arabia
| | - Mohamed S Selim
- Clinical and Experimental Therapeutics, University of Georgia, Augusta, GA, USA
- Charlie Norwood VA Medical Center, Augusta, GA, USA
| | - Manyasreeprapti R Yendamuri
- Clinical and Experimental Therapeutics, University of Georgia, Augusta, GA, USA
- Charlie Norwood VA Medical Center, Augusta, GA, USA
| | - Duo Zhang
- Clinical and Experimental Therapeutics, University of Georgia, Augusta, GA, USA
- Charlie Norwood VA Medical Center, Augusta, GA, USA
| | - S Priya Narayanan
- Clinical and Experimental Therapeutics, University of Georgia, Augusta, GA, USA
- Charlie Norwood VA Medical Center, Augusta, GA, USA
| | - Payaningal R Somanath
- Clinical and Experimental Therapeutics, University of Georgia, Augusta, GA, USA
- Charlie Norwood VA Medical Center, Augusta, GA, USA
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23
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Lin G, Zhang F, Weng X, Hong Z, Ye D, Wang G. Role of gut microbiota in the pathogenesis of castration-resistant prostate cancer: a comprehensive study using sequencing and animal models. Oncogene 2024; 43:2373-2388. [PMID: 38886569 DOI: 10.1038/s41388-024-03073-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 05/14/2024] [Accepted: 05/23/2024] [Indexed: 06/20/2024]
Abstract
CRPC remains a significant challenge in prostate cancer research. We aimed to elucidate the role of gut microbiota and its specific mechanisms in CRPC using a multidisciplinary approach. We analyzed 16S rRNA sequencing data from mouse fecal samples, revealing substantial differences in gut microbiota composition between CRPC and castration-sensitive prostate cancer mice, particularly in Firmicutes and Bacteroidetes. Functional analysis suggested different bacteria may influence CRPC via the α-linolenic acid metabolism pathway. In vivo, experiments utilizing mouse models and fecal microbiota transplantation (FMT) demonstrated that FMT from healthy control mice could decelerate tumor growth in CRPC mice, reduce TNF-α levels, and inhibit the activation of the TLR4/MyD88/NF-κB signaling pathway. Transcriptome sequencing identified crucial genes and pathways, with rescue experiments confirming the gut microbiota's role in modulating CRPC progression through the TLR4/MyD88/NF-κB pathway. The activation of this pathway by TNF-α has been corroborated by in vitro cell experiments, indicating its role in promoting prostate cancer cell proliferation, migration, and invasion while inhibiting apoptosis. Gut microbiota dysbiosis may promote CRPC development through TNF-α activation of the TLR4/MyD88/NF-κB signaling pathway, potentially linked to α-linolenic acid metabolism.
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Affiliation(s)
- Guowen Lin
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, 200032, China.
- Shanghai Genitourinary Cancer Institute, Shanghai, 200032, China.
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China.
| | - Feng Zhang
- Department Of Urology, Shanghai Eighth People's Hospital, Shanghai, 200235, China
| | - Xiaoling Weng
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Zhe Hong
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, 200032, China.
- Shanghai Genitourinary Cancer Institute, Shanghai, 200032, China.
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China.
| | - Dingwei Ye
- Department of Urology, Fudan University Shanghai Cancer Center, Shanghai, 200032, China.
- Shanghai Genitourinary Cancer Institute, Shanghai, 200032, China.
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, 200032, China.
| | - Gangmin Wang
- Department of Urology, Huashan Hospital, Fudan University, Shanghai, 200040, China.
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24
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Maharati A, Moghbeli M. Role of microRNA-505 during tumor progression and metastasis. Pathol Res Pract 2024; 258:155344. [PMID: 38744001 DOI: 10.1016/j.prp.2024.155344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 04/23/2024] [Accepted: 05/09/2024] [Indexed: 05/16/2024]
Abstract
Late diagnosis of cancer in advanced stages due to the lack of screening methods is considered as the main cause of poor prognosis and high mortality rate among these patients. Therefore, it is necessary to investigate the molecular tumor biology in order to introduce biomarkers that can be used in cancer screening programs and early diagnosis. MicroRNAs (miRNAs) have key roles in regulation of the cellular pathophysiological processes. Due to the high stability of miRNAs in body fluids, they are widely used as the non-invasive tumor markers. According to the numerous reports about miR-505 deregulation in a wide range of cancers, we investigated the role of miR-505 during tumor progression. It was shown that miR-505 mainly has the tumor suppressor functions through the regulation of signaling pathways, chromatin remodeling, and cellular metabolism. This review has an effective role in introducing miR-505 as a suitable marker for the early cancer diagnosis.
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Affiliation(s)
- Amirhosein Maharati
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Meysam Moghbeli
- Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
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25
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Hasanian-Langroudi F, Ghasemi A, Hedayati M, Siadat SD, Tohidi M. Novel Insight into the Effect of Probiotics in the Regulation of the Most Important Pathways Involved in the Pathogenesis of Type 2 Diabetes Mellitus. Probiotics Antimicrob Proteins 2024; 16:829-844. [PMID: 37162668 DOI: 10.1007/s12602-023-10056-8] [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] [Accepted: 03/02/2023] [Indexed: 05/11/2023]
Abstract
Type 2 diabetes mellitus (T2DM) is considered one of the most common disorders worldwide. Although several treatment modalities have been developed, the existing interventions have not yielded the desired results. Therefore, researchers have focused on finding treatment choices with low toxicity and few adverse effects that could control T2DM efficiently. Various types of research on the role of gut microbiota in developing T2DM and its related complications have led to the growing interest in probiotic supplementation. Several properties make these organisms unique in terms of human health, including their low cost, high reliability, and good safety profile. Emerging evidence has demonstrated that three of the most important signaling pathways, including nuclear factor kappa B (NF-κB), phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt), and nuclear factor erythroid 2-related factor 2 (Nrf2), which involved in the pathogenesis of T2DM, play key functions in the effects of probiotics on this disease. Hence, we will focus on the clinical applications of probiotics in the management of T2DM. Then, we will also discuss the roles of the involvement of various probiotics in the regulation of the most important signaling pathways (NF-κB, PI3K/Akt, and Nrf2) involved in the pathogenesis of T2DM.
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Affiliation(s)
- Farzaneh Hasanian-Langroudi
- Prevention of Metabolic Disorders Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, P.O. Box, Tehran, 19395-4763, Iran
| | - Asghar Ghasemi
- Endocrine Physiology Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mehdi Hedayati
- Cellular and Molecular Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyed Davar Siadat
- Department of Mycobacteriology and Pulmonary Research, Pasteur Institute of Iran, Tehran, Iran.
- Microbiology Research Center, Pasteur Institute of Iran, Tehran, Iran.
| | - Maryam Tohidi
- Prevention of Metabolic Disorders Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, P.O. Box, Tehran, 19395-4763, Iran.
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26
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Sun Y, Hao M, Wu H, Zhang C, Wei D, Li S, Song Z, Tao Y. Unveiling the role of CaMKII in retinal degeneration: from biological mechanism to therapeutic strategies. Cell Biosci 2024; 14:59. [PMID: 38725013 PMCID: PMC11084033 DOI: 10.1186/s13578-024-01236-2] [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: 01/06/2024] [Accepted: 04/18/2024] [Indexed: 05/12/2024] Open
Abstract
Ca2+/calmodulin-dependent protein kinase II (CaMKII) is a family of broad substrate specificity serine (Ser)/threonine (Thr) protein kinases that play a crucial role in the Ca2+-dependent signaling pathways. Its significance as an intracellular Ca2+ sensor has garnered abundant research interest in the domain of neurodegeneration. Accumulating evidences suggest that CaMKII is implicated in the pathology of degenerative retinopathies such as diabetic retinopathy (DR), age-related macular degeneration (AMD), retinitis pigmentosa (RP) and glaucoma optic neuropathy. CaMKII can induce the aberrant proliferation of retinal blood vessels, influence the synaptic signaling, and exert dual effects on the survival of retinal ganglion cells and pigment epithelial cells. Researchers have put forth multiple therapeutic agents, encompassing small molecules, peptides, and nucleotides that possess the capability to modulate CaMKII activity. Due to its broad range isoforms and splice variants therapeutic strategies seek to inhibit specifically the CaMKII are confronted with considerable challenges. Therefore, it becomes crucial to discern the detrimental and advantageous aspects of CaMKII, thereby facilitating the development of efficacious treatment. In this review, we summarize recent research findings on the cellular and molecular biology of CaMKII, with special emphasis on its metabolic and regulatory mechanisms. We delve into the involvement of CaMKII in the retinal signal transduction pathways and discuss the correlation between CaMKII and calcium overload. Furthermore, we elaborate the therapeutic trials targeting CaMKII, and introduce recent developments in the zone of CaMKII inhibitors. These findings would enrich our knowledge of CaMKII, and shed light on the development of a therapeutic target for degenerative retinopathy.
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Affiliation(s)
- Yuxin Sun
- Department of Ophthalmology, Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, 450003, China
- College of Medicine, Zhengzhou University, Zhengzhou, 450001, China
| | - Mengyu Hao
- Department of Ophthalmology, Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, 450003, China
- College of Medicine, Zhengzhou University, Zhengzhou, 450001, China
| | - Hao Wu
- Department of Ophthalmology, Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, 450003, China
- College of Medicine, Zhengzhou University, Zhengzhou, 450001, China
| | - Chengzhi Zhang
- Department of Ophthalmology, Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, 450003, China
- College of Medicine, Zhengzhou University, Zhengzhou, 450001, China
| | - Dong Wei
- Department of Ophthalmology, Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, 450003, China
- College of Medicine, Zhengzhou University, Zhengzhou, 450001, China
| | - Siyu Li
- Department of Ophthalmology, Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, 450003, China
- College of Medicine, Zhengzhou University, Zhengzhou, 450001, China
| | - Zongming Song
- Department of Ophthalmology, Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, 450003, China.
| | - Ye Tao
- Department of Ophthalmology, Henan Eye Hospital, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, 450003, China.
- College of Medicine, Zhengzhou University, Zhengzhou, 450001, China.
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27
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Chen T, Wang C, Zhu W, Yu F, Dong X, Su Y, Huang J, Huo L, Wan P. mm9_circ_014683 regulates microglia polarization through canonical NFκB signaling pathway in diabetic retinopathy. Cell Signal 2024; 117:111121. [PMID: 38417635 DOI: 10.1016/j.cellsig.2024.111121] [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: 01/18/2024] [Revised: 02/15/2024] [Accepted: 02/25/2024] [Indexed: 03/01/2024]
Abstract
Diabetic retinopathy (DR) is still the major cause of visual loss in working-aged people, one of the critical pathological processes are retinal microglia-mediated inflammation. Our previous study demonstrated that enhanced M1 microglial polarization was involved in retinal inflammation in DR, but the detailed mechanism needs further investigation. Circular RNAs (circRNAs) are important kind of noncoding RNAs involved in the regulation of various cell biological processes. Herein, the circRNA expression profiles of BV2 mouse microglia treated with or without glucose were detected, and a total of 347 differentially expressed circRNAs were identified in glucose-treated BV2 cells. The key circRNA mm9_circ_014683 increased after glucose stimulation. Inhibiting or overexpressing mm9_circ_014683 showed no effect on the proliferation and apoptosis of microglia. Inhibiting mm9_circ_014683 impeded M1 polarization and promoted M2 polarization, and overexpressing mm9_circ_014683 showed the opposite effect. A total of 216 differentially expressed genes were identified in mm9_circ_014683-knockdown BV2 cells, which were enriched in several signaling pathways, including the NFκB signaling pathway. Moreover, mm9_circ_014683 positively regulated the canonical, NFκB signaling pathway. Besides, mm9_circ_014683 was highly expressed in the retinal microglia of diabetic mice, and intraocular injection of Lv-circRNA inhibited M1 but enhanced M2 retinal microglial polarization. In conclusion, mm9_circ_014683 regulates microglial polarization through the canonical NFκB signaling pathway in diabetic retinopathy. This study may provide insight into the pathogenesis and treatment of DR.
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Affiliation(s)
- Tingting Chen
- Department of Ophthalmology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China
| | - Congyao Wang
- Department of Ophthalmology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China
| | - Wenhui Zhu
- Department of Ophthalmology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China
| | - Fenfen Yu
- Department of Ophthalmology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China
| | - Xia Dong
- Department of Ophthalmology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China
| | - Yihua Su
- Department of Ophthalmology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China
| | - Jingwen Huang
- Department of Ophthalmology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China
| | - Lijun Huo
- Department of Ophthalmology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China.
| | - Pengxia Wan
- Department of Ophthalmology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China.
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28
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Kazemi N, Bordbar A, Bavarsad SS, Ghasemi P, Bakhshi M, Rezaeeyan H. Molecular Insights into the Relationship Between Platelet Activation and Endothelial Dysfunction: Molecular Approaches and Clinical Practice. Mol Biotechnol 2024; 66:932-947. [PMID: 38184492 DOI: 10.1007/s12033-023-01010-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Accepted: 11/27/2023] [Indexed: 01/08/2024]
Abstract
Platelets are one of the coagulation cells. When platelet activation occurs, many mediators are released and affect endothelial cells (ECs) and lead to endothelial dysfunction (ED). ED plays an important role in the pathogenesis of many diseases, including cardiovascular disease (CVD). Platelet are of important factors in ED. The release of mediators by platelets causes the stimulation of inflammatory pathways, oxidative stress, and apoptosis, which ultimately result in ED.On the other hand, platelet activation in CVD patients can be associated with a bad prognosis. Platelet activation can increase the level of markers such as p-selectin in the serum. Also, in this study, we have discussed the role of platelet as a diagnostic factor, as well as its use as a treatment option. In addition, we discussed some of the molecular pathways that are used to target platelet activation.
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Affiliation(s)
- Niloufar Kazemi
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Iranian Blood Transfusion Organization (IBTO), Tehran, Iran
| | - Armin Bordbar
- Department of Cardiology, Musavi Hospital, School of Medicine, Zanjan University of Medical Science, Zanjan, Iran
| | | | - Parisa Ghasemi
- Research Committee, Medical School, Arak University of Medical Sciences, Arak, Iran
| | - Maryam Bakhshi
- Islamic Azad University of Najaf Abad, Affiliated Hospitals, Isfahan, Iran
| | - Hadi Rezaeeyan
- Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Iranian Blood Transfusion Organization (IBTO), Tehran, Iran.
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Wang X, Zhou J, Wang Y, Li X, Hu Q, Luo L, Liu X, Liu W, Ye J. Effect of astrocyte GPER on the optic nerve inflammatory response following optic nerve injury in mice. Heliyon 2024; 10:e29428. [PMID: 38638966 PMCID: PMC11024623 DOI: 10.1016/j.heliyon.2024.e29428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 04/05/2024] [Accepted: 04/08/2024] [Indexed: 04/20/2024] Open
Abstract
Activated astrocytes are a primary source of inflammatory factors following traumatic optic neuropathy (TON). Accumulation of inflammatory factors in this context leads to increased axonal damage and loss of retinal ganglion cells (RGCs). Therefore, in the present study, we explored the role of the astrocyte G protein-coupled estrogen receptor (GPER) in regulating inflammatory factors following optic nerve crush (ONC), and analyzed its potential regulatory mechanisms. Overall, our results showed that GPER was abundantly expressed in the optic nerve, and co-localized with glial fibrillary acidic proteins (GFAP). Exogenous administration of G-1 led to a significant reduction in astrocyte activation and expression of inflammation-related factors (including IL-1β, TNF-α, NFκB, and p-NFκB). Additionally, it dramatically increased the survival of RGCs. In contrast, astrocytes were activated to a greater extent by exogenous G15 administration; however, RGCs survival was significantly reduced. In vitro, GPER activation significantly reduced astrocyte activation and the release of inflammation-related factors. In conclusion, activation of astrocyte GPER significantly reduced ONC inflammation levels, and should be explored as a potential target pathway for protecting the optic nerve and RGCs after TON.
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Affiliation(s)
- Xuan Wang
- Department of Ophthalmology, Daping Hospital, Army Medical Center of PLA, Army Medical University, Chongqing, 400042, China
| | - Jiaxing Zhou
- Department of Ophthalmology, Daping Hospital, Army Medical Center of PLA, Army Medical University, Chongqing, 400042, China
| | - Yuwen Wang
- Department of Ophthalmology, Xinqiao Hospital, Army Medical University, Xinqiao Road, Shapingba District, Chongqing, 400032, China
| | - Xue Li
- Department of Ophthalmology, Daping Hospital, Army Medical Center of PLA, Army Medical University, Chongqing, 400042, China
| | - Qiumei Hu
- Department of Ophthalmology, Daping Hospital, Army Medical Center of PLA, Army Medical University, Chongqing, 400042, China
| | - Linlin Luo
- Department of Ophthalmology, Daping Hospital, Army Medical Center of PLA, Army Medical University, Chongqing, 400042, China
| | - Xuemei Liu
- Department of Ophthalmology, Daping Hospital, Army Medical Center of PLA, Army Medical University, Chongqing, 400042, China
| | - Wei Liu
- Department of Ophthalmology, Daping Hospital, Army Medical Center of PLA, Army Medical University, Chongqing, 400042, China
| | - Jian Ye
- Department of Ophthalmology, Daping Hospital, Army Medical Center of PLA, Army Medical University, Chongqing, 400042, China
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Liu C, Ma N, Sun C, Shen X, Li J, Wang C. The effect of magnesium ions synergistic with mineralized collagen on osteogenesis/angiogenesis properties by modulating macrophage polarization in vitroand in vivo. Biomed Mater 2024; 19:035028. [PMID: 38518370 DOI: 10.1088/1748-605x/ad3702] [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: 03/23/2023] [Accepted: 03/22/2024] [Indexed: 03/24/2024]
Abstract
In bone tissue engineering, the bone immunomodulatory properties of biomaterials are critical for bone regeneration, which is a synergistic process involving physiological activities like immune response, osteogenesis, and angiogenesis. The effect of the macrophage immune microenvironment on the osteogenesis and angiogenesis of various material extracts was examined in this experiment using Mg2+and Nano-hydroxyapatite/collagen (nHAC) in both a single application and a combined form. This studyin vitrorevealed that the two compounds combined significantly inhibited the NF-κB signaling pathway and reduced the release of inflammatory factors from macrophages when compared with the extraction phase alone. Additionally, by contributing to the polarization of macrophages towards the M2 type, the combined effects of the two materials can significantly improve osteogenesis/angiogenesis. The results ofin vivoexperiments confirmed that Mg2+/nHAC significantly promoted bone regeneration and angiogenesis. This study offers a promising method for enhancing bone graft material osseointegration.
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Affiliation(s)
- Chang Liu
- Department of Prosthodontics, Second Affiliated Hospital (Stomatological Hospital Affiliated) of Jinzhou Medical University, Jinzhou 121000, People's Republic of China
- Collaborative Innovation Center for Health Promotion of Children and Adolescents of Jinzhou Medical University, Jinzhou 121000, People's Republic of China
| | - Nan Ma
- Department of Prosthodontics, Second Affiliated Hospital (Stomatological Hospital Affiliated) of Jinzhou Medical University, Jinzhou 121000, People's Republic of China
- Collaborative Innovation Center for Health Promotion of Children and Adolescents of Jinzhou Medical University, Jinzhou 121000, People's Republic of China
| | - Changan Sun
- Department of Prosthodontics, Second Affiliated Hospital (Stomatological Hospital Affiliated) of Jinzhou Medical University, Jinzhou 121000, People's Republic of China
| | - Xuecheng Shen
- Department of Prosthodontics, Second Affiliated Hospital (Stomatological Hospital Affiliated) of Jinzhou Medical University, Jinzhou 121000, People's Republic of China
| | - Jinwei Li
- School of Basic Medicine, Jinzhou Medical University, Jinzhou 121000, People's Republic of China
| | - Chengyue Wang
- Department of Prosthodontics, Second Affiliated Hospital (Stomatological Hospital Affiliated) of Jinzhou Medical University, Jinzhou 121000, People's Republic of China
- Collaborative Innovation Center for Health Promotion of Children and Adolescents of Jinzhou Medical University, Jinzhou 121000, People's Republic of China
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Blair I, Fan J, Gillespie K, Mesaros C. Ferroptosis and HMGB2 induced calreticulin translocation required for immunogenic cell death are controlled by the nuclear exporter XPO1. RESEARCH SQUARE 2024:rs.3.rs-4009459. [PMID: 38496553 PMCID: PMC10942558 DOI: 10.21203/rs.3.rs-4009459/v2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/09/2024]
Abstract
Cisplatin and oxaliplatin cause the secretion of high mobility group box 1 (HMGB1) from cancer cells, which is necessary for initiation of immunogenic cell death (ICD). Calreticulin (CRT) translocation from the endoplasmic reticulum to the plasma membrane is also required; oxaliplatin induces this translocation but cisplatin does not. We have discovered that oxaliplatin causes the secretion of both HMGB1 and HMGB2 from the nucleus into the extracellular milieu. We previously showed that cisplatin mediated secretion of HMGB1 is controlled by the nuclear exporter XPO1 (chromosomal maintenance 1; CRM1). We now find that XPO1 regulates oxaliplatin mediated secretion of both HMGB1 and HMGB2. XPO1 inhibition causes nuclear accumulation of both proteins, inhibition of oxaliplatin-mediated ferroptosis of colon cancer cells, and inhibition of CRT translocation to the plasma membrane of lung and colon cancer cells. Incubation of cancer cells with cell targeted (CT)-HMGB2 confirmed that HMGB2 is responsible for translocation of CRT to the plasma membrane. CT-HMGB2 is three orders of magnitude more potent than oxaliplatin at inducing CRT translocation. Inhibition of HMGB1 and HMGB2 secretion and/or their activation of nuclear factor-kappa B (NF-kB) has potential utility for treating cardiovascular, and neurodegenerative diseases; whereas CT-HMGB2 could augment therapeutic approaches to cancer treatment.
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Blair I, Fan J, Gillespie K, Mesaros C. Ferroptosis and HMGB2 induced calreticulin translocation required for immunogenic cell death are controlled by the nuclear exporter XPO1. RESEARCH SQUARE 2024:rs.3.rs-4009459. [PMID: 38496553 PMCID: PMC10942558 DOI: 10.21203/rs.3.rs-4009459/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
Cisplatin and oxaliplatin cause the secretion of high mobility group box 1 (HMGB1) from cancer cells, which is necessary for initiation of immunogenic cell death (ICD). Calreticulin (CRT) translocation from the endoplasmic reticulum to the plasma membrane is also required; oxaliplatin induces this translocation but cisplatin does not. We have discovered that oxaliplatin causes the secretion of both HMGB1 and HMGB2 from the nucleus into the extracellular milieu. We previously showed that cisplatin mediated secretion of HMGB1 is controlled by the nuclear exporter XPO1 (chromosomal maintenance 1; CRM1). We now find that XPO1 regulates oxaliplatin mediated secretion of both HMGB1 and HMGB2. XPO1 inhibition causes nuclear accumulation of both proteins, inhibition of oxaliplatin-mediated ferroptosis of colon cancer cells, and inhibition of CRT translocation to the plasma membrane of lung and colon cancer cells. Incubation of cancer cells with cell targeted (CT)-HMGB2 confirmed that HMGB2 is responsible for translocation of CRT to the plasma membrane. CT-HMGB2 is three orders of magnitude more potent than oxaliplatin at inducing CRT translocation. Inhibition of HMGB1 and HMGB2 secretion and/or their activation of nuclear factor-kappa B (NF-kB) has potential utility for treating cardiovascular, and neurodegenerative diseases; whereas CT-HMGB2 could augment therapeutic approaches to cancer treatment.
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Liu Y, Yu R, Wang X, Chen Y, Yin T, Gao Q, Sun L, Zheng Z. Research progress of the effective active ingredients of Astragalus mongholicus in the treatment of diabetic peripheral neuropathy. Biomed Pharmacother 2024; 173:116350. [PMID: 38430632 DOI: 10.1016/j.biopha.2024.116350] [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: 12/06/2023] [Revised: 02/15/2024] [Accepted: 02/23/2024] [Indexed: 03/05/2024] Open
Abstract
Diabetic peripheral neuropathy (DPN) is one of the most prevalent consequences of diabetes, with a high incidence and disability rate. The DPN's pathogenesis is extremely complex and yet to be fully understood. Persistent high glucose metabolism, nerve growth factor deficiency, microvascular disease, oxidative stress, peripheral nerve cell apoptosis, immune factors, and other factors have been implicated in the pathogenesis of DPN. Astragalus mongholicus is a commonly used plant used to treat DPN in clinical settings. Its rich chemical components mainly include Astragalus polysaccharide, Astragalus saponins, Astragalus flavones, etc., which play a vital role in the treatment of DPN. This review aimed to summarize the pathogenesis of DPN and the studies on the mechanism of the effective components of Astragalus mongholicus in treating DPN. This is of great significance for the effective use of Chinese herbal medicine and the promotion of its status and influence on the world.
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Affiliation(s)
- Yulian Liu
- Department of Rehabilitation Medicine,The Affiliated Taian City Central Hospital of Qingdao University, Taian 271000, China
| | - Runyuan Yu
- Department of Rehabilitation Medicine,The Affiliated Taian City Central Hospital of Qingdao University, Taian 271000, China
| | - Xiaoyu Wang
- Department of Rehabilitation Medicine,The Affiliated Taian City Central Hospital of Qingdao University, Taian 271000, China
| | - Yuexia Chen
- Department of Skills Training Center,The Affiliated Taian City Central Hospital of Qingdao University, Taian 271000, China
| | - Tao Yin
- Department of Rehabilitation Medicine,The Affiliated Taian City Central Hospital of Qingdao University, Taian 271000, China
| | - Qiang Gao
- Department of Rehabilitation Medicine,The Affiliated Taian City Central Hospital of Qingdao University, Taian 271000, China
| | - Limin Sun
- Department of Rehabilitation Medicine,The Affiliated Taian City Central Hospital of Qingdao University, Taian 271000, China
| | - Zuncheng Zheng
- Department of Rehabilitation Medicine,The Affiliated Taian City Central Hospital of Qingdao University, Taian 271000, China.
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Wang Y, Sun X, Xie Y, Du A, Chen M, Lai S, Wei X, Ji L, Wang C. Panax notoginseng saponins alleviate diabetic retinopathy by inhibiting retinal inflammation: Association with the NF-κB signaling pathway. JOURNAL OF ETHNOPHARMACOLOGY 2024; 319:117135. [PMID: 37689326 DOI: 10.1016/j.jep.2023.117135] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 08/31/2023] [Accepted: 09/05/2023] [Indexed: 09/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Diabetic retinopathy (DR) is a neurovascular disease that causes blindness in adults and is the most serious and common complication of diabetes mellitus. Retinal inflammation is an early stage of DR, and it is believed to play a crucial role in the development of DR. Panax notoginseng saponins (PNS) are the major active constituent in the main root of P. notoginseng, and they exhibit various biological activities, including anti-inflammatory, antioxidant, neuroprotective, and immunomodulatory functions. However, the protective effects and underlying mechanisms of PNS against DR remain unclear. AIM OF THE STUDY This study aimed to investigate the alleviation effects of PNS on DR and the mechanisms involved. Furthermore, it intended to explore the major components that exert efficacy in vivo. MATERIALS AND METHODS Streptozotocin (STZ) was administered intraperitoneally to Sprague Dawley rats, and PNS was administered orally for 1 month after 2 months of STZ injection. The morphological structure of the retina and retinal acellular capillaries were assessed via hematoxylin and eosin (H&E) staining assay. The disruption of the blood-retinal barrier (BRB) was detected through Evans blue dye leakage assay, and retinal leukocyte adhesion was achieved via fluorescein isothiocyanate-coupled concanavalin A lectin labeling assay. Immunofluorescence staining and Western blot assays were conducted to detect the expression of tight junction proteins, adhesion molecules, and the ionized calcium-binding adapter molecule-1 (Iba-1) in the retina. Enzyme-linked immunosorbent assay was performed to detect the levels of tumor necrosis factor (TNF)-α, interleukin (IL)-6, and IL-1β in serum. In addition, the protein expression levels of nuclear factor (NF)-κB p65, phosphorylated IκB kinase (p-IKK), phosphorylated NF-κB inhibitor (p-IκB), and phosphorylated NF-κB p65 (p-p65) were measured using Western blot assay. The ocular tissue distribution of PNS in normal and diabetic rats was determined through ultra-performance liquid chromatography-tandem mass spectrometry. The in vitro anti-inflammatory effects of PNS, notoginsenoside (NGR1), ginsenoside Rg1, Re, Rb1, and Rd (GRg1, GRe, GRb1, and GRd) were evaluated on human Müller (MIO-M1) cells. RESULTS PNS increased the reduction in retinal inner nuclear layer thickness, reduced the increase in retinal acellular capillaries, and attenuated elevated BRB disruption by upregulating the decrease in protein expression of claudin-1 and occludin. Furthermore, PNS significantly abrogated microglial cell activation and reversed the increase in leukocyte adhesion by downregulating the increase in the protein expression of intercellular adhesion molecule-1 and vascular cell adhesion molecule-1. Moreover, PNS reduced the elevated levels of TNF-α, IL-6, and IL-1β in serum and inhibited the increased protein expression of p-IKK, p-IκB, and p-p65, and the nuclear translocation of p65. The tissue distribution results revealed that NGR1, GRg1, GRe, GRb1, and GRd were detected in the ocular tissue, while GRg1 and GRb1 were found at the highest levels compared with the other components. The cellular results showed that PNS, NGR1, GRg1, GRe, GRb1, and GRd suppressed the development of cellular inflammatory responses by inhibiting the activation of the NF-κB signaling pathway in MIO-M1 cells and that their anti-inflammatory effects were comparable. CONCLUSION PNS suppressed retinal inflammation by inhibiting the activation of the NF-κB signaling pathway, alleviating DR. GRg1 and GRb1 may be the primary components that exert anti-inflammatory effects in vivo.
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Affiliation(s)
- Yaru Wang
- The MOE Key Laboratory for Standardization of Chinese Medicines, The SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, and Shanghai Key Laboratory of Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - Xin Sun
- The MOE Key Laboratory for Standardization of Chinese Medicines, The SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, and Shanghai Key Laboratory of Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - Yumin Xie
- The MOE Key Laboratory for Standardization of Chinese Medicines, The SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, and Shanghai Key Laboratory of Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - Ao Du
- The MOE Key Laboratory for Standardization of Chinese Medicines, The SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, and Shanghai Key Laboratory of Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - Ming Chen
- Guangxi Key Laboratory of Comprehensive Utilization Technology of Pseudo-ginseng, Wu Zhou, 543000, China.
| | - Shusheng Lai
- Guangxi Key Laboratory of Comprehensive Utilization Technology of Pseudo-ginseng, Wu Zhou, 543000, China.
| | - Xiaohui Wei
- The MOE Key Laboratory for Standardization of Chinese Medicines, The SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, and Shanghai Key Laboratory of Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - Lili Ji
- The MOE Key Laboratory for Standardization of Chinese Medicines, The SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, and Shanghai Key Laboratory of Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - Changhong Wang
- The MOE Key Laboratory for Standardization of Chinese Medicines, The SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, and Shanghai Key Laboratory of Compound Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
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He YQ, Zhou CC, Jiang SG, Lan WQ, Zhang F, Tao X, Chen WS. Natural products for the treatment of chemotherapy-related cognitive impairment and prospects of nose-to-brain drug delivery. Front Pharmacol 2024; 15:1292807. [PMID: 38348396 PMCID: PMC10859466 DOI: 10.3389/fphar.2024.1292807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 01/15/2024] [Indexed: 02/15/2024] Open
Abstract
Chemotherapy-related cognitive deficits (CRCI) as one of the common adverse drug reactions during chemotherapy that manifest as memory, attention, and executive function impairments. However, there are still no effective pharmacological therapies for the treatment of CRCI. Natural compounds have always inspired drug development and numerous natural products have shown potential therapeutic effects on CRCI. Nevertheless, improving the brain targeting of natural compounds in the treatment of CRCI is still a problem to be overcome at present and in the future. Accumulated evidence shows that nose-to-brain drug delivery may be an excellent carrier for natural compounds. Therefore, we reviewed natural products with potential anti-CRCI, focusing on the signaling pathway of these drugs' anti-CRCI effects, as well as the possibility and prospect of treating CRCI with natural compounds based on nose-to-brain drug delivery in the future. In conclusion, this review provides new insights to further explore natural products in the treatment of CRCI.
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Affiliation(s)
- Yu-Qiong He
- Institute of Chinese Materia Madica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Department of Pharmacy, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Can-Can Zhou
- Department of Pharmacy, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Sheng-Gui Jiang
- Department of Pharmacy, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Wen-Qian Lan
- Institute of Chinese Materia Madica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Feng Zhang
- Department of Pharmacy, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Xia Tao
- Department of Pharmacy, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Wan-Sheng Chen
- Institute of Chinese Materia Madica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Department of Pharmacy, Changzheng Hospital, Second Military Medical University, Shanghai, China
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Chen R, Zou J, Zhong X, Li J, Kang R, Tang D. HMGB1 in the interplay between autophagy and apoptosis in cancer. Cancer Lett 2024; 581:216494. [PMID: 38007142 DOI: 10.1016/j.canlet.2023.216494] [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: 07/21/2023] [Revised: 10/25/2023] [Accepted: 11/08/2023] [Indexed: 11/27/2023]
Abstract
Lysosome-mediated autophagy and caspase-dependent apoptosis are dynamic processes that maintain cellular homeostasis, ensuring cell health and functionality. The intricate interplay and reciprocal regulation between autophagy and apoptosis are implicated in various human diseases, including cancer. High-mobility group box 1 (HMGB1), a nonhistone chromosomal protein, plays a pivotal role in coordinating autophagy and apoptosis levels during tumor initiation, progression, and therapy. The regulation of autophagy machinery and the apoptosis pathway by HMGB1 is influenced by various factors, including the protein's subcellular localization, oxidative state, and interactions with binding partners. In this narrative review, we provide a comprehensive overview of the structure and function of HMGB1, with a specific focus on the interplay between autophagic degradation and apoptotic death in tumorigenesis and cancer therapy. Gaining a comprehensive understanding of the significance of HMGB1 as a biomarker and its potential as a therapeutic target in tumor diseases is crucial for advancing our knowledge of cell survival and cell death.
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Affiliation(s)
- Ruochan Chen
- Department of Infectious Diseases, Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China.
| | - Ju Zou
- Department of Infectious Diseases, Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Xiao Zhong
- Department of Infectious Diseases, Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Jie Li
- Department of Infectious Diseases, Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, China
| | - Rui Kang
- Department of Surgery, UT Southwestern Medical Center, Dallas, TX, USA
| | - Daolin Tang
- Department of Surgery, UT Southwestern Medical Center, Dallas, TX, USA.
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Cui L, Ma J. NEDD4L Promotes I κB α Ubiquitination and Degradation in the Pathogenesis of Diabetic Retinopathy. Curr Eye Res 2024; 49:62-72. [PMID: 37768316 DOI: 10.1080/02713683.2023.2265079] [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: 04/28/2023] [Accepted: 09/26/2023] [Indexed: 09/29/2023]
Abstract
PURPOSE The dysregulation of NF-κB signaling activity plays an important role in the pathogenesis of diabetic retinopathy (DR). This study explored the association between NEDD4L and IκBα in DR. METHODS The rat model of diabetes was established and altered retinal vascular permeability in these rats was examined through an Evans blue dye assay. A range of glucose concentrations were used to treat retinal vascular endothelial cells (RVECs). The cells viability and apoptosis were assessed through MTT and flow cytometry, while shifts in cell permeability were examined by transendothelial resistance (TEER) and FITC dextran assay. The interaction of NEDD4L and IκBα was tested by Co-IP, while mRNA and protein levels were assessed via qPCR and Western blotting, respectively. RESULTS High glucose suppressed proliferative activity of RVECs, and promoted apoptosis and the protein level of NEDD4L and NF-κB p65, but decreased IκBα. NEDD4L knockdown reversed the changes in inflammation, oxidative stress, and permeability in RVECs exposed to high glucose. Similarly, NEDD4L silencing reverted observed TEER decreases, increased monolayer permeability to FITC dextran, and ZO-1 and Claudin-5 downregulation in response to high glucose. Conversely, the impact of NEDD4L overexpression was reversed by the NF-κB inhibitor PDTC treatment. NEDD4L induced the ubiquitination of IκBα in an IKK-2-dependent manner. Moreover, siNEDD4L treatment alleviated the symptoms of DR through the inactivation of NF-κB signaling in vivo. CONCLUSIONS NEDD4L could enhance inflammation, oxidative stress, and permeability in the retinal vascular endothelium by facilitating the ubiquitination of IκBα in an IKK-2-dependent manner. Our results support a role for NEDD4L in the pathogenesis of DR.
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Affiliation(s)
- Li Cui
- Department of Ophthalmology, Second hospital of Hebei medical university, Shijiazhuang City, Hebei Province, China
| | - Jingxue Ma
- Department of Ophthalmology, Second hospital of Hebei medical university, Shijiazhuang City, Hebei Province, China
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Lu Z, Fan B, Li Y, Zhang Y. RAGE plays key role in diabetic retinopathy: a review. Biomed Eng Online 2023; 22:128. [PMID: 38115006 PMCID: PMC10729525 DOI: 10.1186/s12938-023-01194-9] [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: 09/22/2023] [Accepted: 12/11/2023] [Indexed: 12/21/2023] Open
Abstract
RAGE is a multiligand receptor for the immunoglobulin superfamily of cell surface molecules and is expressed in Müller cells, vascular endothelial cells, nerve cells and RPE cells of the retina. Diabetic retinopathy (DR) is a multifactorial disease associated with retinal inflammation and vascular abnormalities and is the leading cause of vision loss or impairment in older or working-age adults worldwide. Therapies aimed at reducing the inflammatory response and unnecessary angiogenesis can help slow the progression of DR, which in turn can save patients' vision. To maximize the efficacy and minimize the side effects, treatments that target key players in the pathophysiological process of DR need to be developed. The interaction between RAGE and its ligands is involved in a variety of cytopathological alterations in the retina, including secretion of inflammatory factors, regulation of angiogenesis, oxidative stress, structural and functional changes, and neurodegeneration. In this review, we will summarize the pathologic pathways mediated by RAGE and its ligand interactions and discuss its role in the progression of diabetic retinopathy to explore potential therapeutic targets that are effective and safe for DR.
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Affiliation(s)
- ZhiWen Lu
- Department of Ophthalmology, The Second Hospital of Jilin University, Nanguan District, No. 4026, Yatai Street, Changchun, 130000, Jilin Province, China
| | - Bin Fan
- Department of Ophthalmology, The Second Hospital of Jilin University, Nanguan District, No. 4026, Yatai Street, Changchun, 130000, Jilin Province, China.
| | - YunZhi Li
- Department of Ophthalmology, The Second Hospital of Jilin University, Nanguan District, No. 4026, Yatai Street, Changchun, 130000, Jilin Province, China
| | - YiXin Zhang
- Department of Ophthalmology, The Second Hospital of Jilin University, Nanguan District, No. 4026, Yatai Street, Changchun, 130000, Jilin Province, China
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Zhang XH, Cui H, Zheng SM, Lu Y, Yuan HW, Zhang L, Wang HH, Du RS. Electroacupuncture regulates microglial polarization via inhibiting NF-κB/COX2 pathway following traumatic brain injury. Brain Res 2023; 1818:148516. [PMID: 37562566 DOI: 10.1016/j.brainres.2023.148516] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 07/23/2023] [Accepted: 08/01/2023] [Indexed: 08/12/2023]
Abstract
BACKGROUND Neuroinflammation and oxidative stress are important pathological mechanisms following traumatic brain injury (TBI). The NF-κB/COX2 pathway regulates neuroinflammation and oxidative damage, while microglia also play an important role in neuroinflammation. Since NF-κB is involved in microglial polarization, targeting this pathway and microglial polarization is a critical component of TBI treatment. Currently, electroacupuncture (EA) is widely used to treat various symptoms after TBI, but the mechanisms of EA remain poorly understood. Additionally, the optimal frequency of EA remains unclear, which affects its efficacy. This study focuses on exploring the optimal frequency parameters of EA on TBI and investigating the underlying mechanisms of EA through NF-κB/COX2 pathway and microglial polarization. METHODS The study was divided into two parts. In Experiment 1, 42 Sprague Dawley (SD) rats were induced and randomly divided into seven groups (n = 6). Except for the sham group, all rats underwent controlled cortical impact (CCI) to establish TBI model. Four EA groups (with different frequencies) and manual acupuncture (without current stimulation) received stimulation on the acupoints of Shuigou (GV26), Fengchi (GB20) and Neiguan (PC6) once a day for 7 days. The neurological function was assessed by modified Neurological Severity Scores (mNSS), and the rats' memory and learning were examined by the Morris water maze (MWM). SOD, MDA, and GSH-Px were detected to evaluate the levels of oxidative stress. The levels of IL-1β, IL-6, and TNF-α were evaluated by Enzyme Linked Immunosorbent Assay (ELISA). Detection of the above indicators indicated a treatment group that exerted the strongest neuroprotection against TBI, we then conducted Experiment 2 using this screened acupuncture treatment to investigate the mechanism of acupuncture. 48 rats were randomly divided into four groups (n = 12): sham, TBI model, acupuncture and PDTC (NF-κB inhibitor). Evaluations of mNSS, MWM test, SOD, MDA, GSH-Px, IL-1β, IL-6, TNF-α, and IL-10 were the same as in Experiment 1. Western blot was applied for detecting the expression levels of NF-κB, p-NF-κB, COX2, and Arg-1. TUNEL was used to examine neuronal apoptosis. Brain structure was observed by H&E. Iba-1, COX2, and Arg-1 were investigated by immunofluorescence staining. RESULTS EA with frequency of 2/100 Hz markedly improved neuronal and cognitive function as compared to the other treatment groups. Moreover, it downregulated the expression of MDA, IL-6, IL-1β, and TNF-α and upregulated the levels of SOD and GSH-Px. In addition, Both EA with 2/100 Hz and PDTC reduced the levels of p-NF-κB, COX2 and M1 markers (COX2, IL-6, IL-1β, TNF-α) and increased the levels of M2 markers (Arg-1, IL-10). Moreover, they had similar effects on reducing inflammation, oxidative stress and apoptosis, and improving neuronal and cognitive function. CONCLUSIONS The collective findings strongly suggest that EA with 2/100 Hz can improve neurologic function by suppressing neuroinflammation, oxidative stress and apoptosis. Additionally, we confirm that EA promotes microglial polarization towards the M2 phenotype through the suppression of NF-κB/COX2 pathway, thus exerting neuroprotective effects after TBI.
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Affiliation(s)
- Xiao-Hui Zhang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China
| | - Hai Cui
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China
| | - Shu-Mei Zheng
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China
| | - Yun Lu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China
| | - Hong-Wen Yuan
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China
| | - Lu Zhang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China
| | - Hong-Hong Wang
- Faculty of Chinese Medicine Science Guangxi University of Chinese Medicine, China
| | - Ruo-Sang Du
- School of Traditional Chinese Medicine, Capital Medical University, Beijing 100069, China.
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Yuan L, Zhang L, Liu X, Li S, Zou J. Identification of differential immune cells and related diagnostic genes in patients with diabetic retinopathy. Medicine (Baltimore) 2023; 102:e35331. [PMID: 37773794 PMCID: PMC10545100 DOI: 10.1097/md.0000000000035331] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 08/31/2023] [Indexed: 10/01/2023] Open
Abstract
BACKGROUND Diabetic retinopathy (DR) is a frequent microvascular abnormality associated with diabetes mellitus. The loss of retinal immunity is an important underlying mechanism of the DR pathogenesis, including the change in retinal immunosuppressive characteristics and the blood-retinal barrier disturbances. Therefore, this investigation screens immune-associated biomarkers in the retina of DR patients. METHODS In this investigation, the differential expression genes (DEGs) were acquired from Gene Expression Omnibus data GSE102485. The relative expression of 22 immune cell types in each sample was calculated by CIBERSORT analysis based on gene expression profile. The core module closely associated with immune infiltration was also screened by weighted gene co-expression network analysis (WGCNA). The overlapping DEGs and module genes were the differentially expressed immune-related genes (DEIRGs). With the help of the genes/proteins (STRING) database and MCODE plug-in, the protein-protein interaction (PPI) network hub genes were screened. Furthermore, the miRNA-hub genes and transcription factor (TF)-hub gene regulatory network were used to explain the possible signal pathways in DR. The hub genes verification was carried out by Polymerase Chain Reaction. Lastly, select CSF1R and its related pathway factor p-ERK1/2 to verify their expression in RF/6A under normal and high glucose environments. RESULTS A total of 3583 principle DEGs, that enriched immune-related GO terms and infection-related pathways were identified. CIBERSORT analysis showed that naive B cells, M2 macrophages, eosinophils, and neutrophil infiltration were significantly different. After intersecting 3583 DEGs, 168 DEIRGs and 181 module genes were identified. Furthermore, 15 hub genes, TYROBP, FCGR3A, CD163, FCGR2A, PTPRC, TLR2, CD14, VSIG4, HCK, CSF1R, LILRB2, ITGAM, CTSS, CD86, and LY86, were identified via PPI network. The identified hub genes were up-regulated in DR and showed a high DR diagnostic value. Regulatory networks of the miRNA- and TF-hub genes can help understand the etiology of disease at the genetic level and optimize treatment strategy. CD14, VSIG4, HCK, and CSF1R were verified to be highly expressed in the vitreous of patients with DR. n RF/6A, CSF1R, and p-ERK1/2 were significantly overexpressed under high glucose conditions, with a statistically significant difference. CONCLUSION This investigation identified 15 genes (TYROBP, FCGR3A, CD163, FCGR2A, PTPRC, TLR2, CD14, VSIG4, HCK, CSF1R, LILRB2, ITGAM, CTSS, CD86, and LY86) as hub DR genes, which may serve as a new potential point for the diagnosis and treatment of DR. CSF1R/p-ERK1/2 signaling may promotes the development of retinal neovascularization.
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Affiliation(s)
- LinHui Yuan
- Department of Ophthalmology, the Third People’s Hospital Affiliated to Dalian Medical University, Dalian, Liaoning, China
- Dalian Medical University, Dalian, Liaoning, China
| | - LiJun Zhang
- Department of Ophthalmology, the Third People’s Hospital Affiliated to Dalian Medical University, Dalian, Liaoning, China
- Dalian Medical University, Dalian, Liaoning, China
| | - Xin Liu
- Department of Ophthalmology, the Third People’s Hospital Affiliated to Dalian Medical University, Dalian, Liaoning, China
- Dalian Medical University, Dalian, Liaoning, China
| | - Sheng Li
- Department of Ophthalmology, the Third People’s Hospital Affiliated to Dalian Medical University, Dalian, Liaoning, China
- Dalian Medical University, Dalian, Liaoning, China
| | - JiXin Zou
- Department of Ophthalmology, the Third People’s Hospital Affiliated to Dalian Medical University, Dalian, Liaoning, China
- Dalian Medical University, Dalian, Liaoning, China
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Fang XL, Zhang Q, Xue WW, Tao JH, Zou HD, Lin QR, Wang YL. Suppression of cAMP/PKA/CREB signaling ameliorates retinal injury in diabetic retinopathy. Kaohsiung J Med Sci 2023; 39:916-926. [PMID: 37338034 DOI: 10.1002/kjm2.12722] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 03/28/2023] [Accepted: 05/29/2023] [Indexed: 06/21/2023] Open
Abstract
The blood-retinal barrier (BRB), homeostasis, neuronal integrity, and metabolic processes are all directly influenced by Müller cells, the most important retinal glial cells. We isolated primary Müller cells from Sprague-Dawley (SD) neonatal rats and treated them with glucose at varying doses. CCK-8 was used to quantify cellular viability, and a TUNEL assay was performed to detect cell apoptosis. ELISA, immunofluorescence, and western blotting were used to assess cAMP/PKA/CREB signaling, Kir4.1, AQP4, GFAP, and VEGF levels, respectively. H&E staining was used to examine histopathological alterations in diabetic retinopathy (DR)-affected retinal tissue in rats. As glucose concentration increases, gliosis of Müller cells became apparent, as evidenced by a decline in cell activity, an increase in apoptosis, downregulation of Kir4.1 level, and overexpression of GFAP, AQP4, and VEGF. Treatments with low, intermediate, and high glucose levels led to aberrant activation of cAMP/PKA/CREB signaling. Interestingly, blocking cAMP and PKA reduced high glucose-induced Müller cell damage and gliosis by a significant amount. Further in vivo results suggested that cAMP or PKA inhibition significantly improved edema, bleeding, and retinal disorders. Our findings showed that high glucose exacerbated Müller cell damage and gliosis via a mechanism involving cAMP/PKA/CREB signaling.
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Affiliation(s)
- Xiao-Ling Fang
- Department of Ophthalmology, Shanghai Eye Diseases Prevention and Treatment Center, Shanghai Eye Hospital, Shanghai, China
- National Clinical Research Center for Eye Diseases, Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, China
| | - Qin Zhang
- Department of Ophthalmology, Jing'an District Central Hospital, Shanghai, China
| | - Wen-Wen Xue
- Department of Ophthalmology, Shanghai Eye Diseases Prevention and Treatment Center, Shanghai Eye Hospital, Shanghai, China
- National Clinical Research Center for Eye Diseases, Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, China
| | - Jin-Hua Tao
- Department of Ophthalmology, Shanghai Eye Diseases Prevention and Treatment Center, Shanghai Eye Hospital, Shanghai, China
- National Clinical Research Center for Eye Diseases, Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, China
| | - Hai-Dong Zou
- Department of Ophthalmology, Shanghai Eye Diseases Prevention and Treatment Center, Shanghai Eye Hospital, Shanghai, China
- National Clinical Research Center for Eye Diseases, Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, China
| | - Qiu-Rong Lin
- Department of Ophthalmology, Shanghai Eye Diseases Prevention and Treatment Center, Shanghai Eye Hospital, Shanghai, China
- National Clinical Research Center for Eye Diseases, Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, China
| | - Yu-Lan Wang
- Department of Ophthalmology, Shanghai Eye Diseases Prevention and Treatment Center, Shanghai Eye Hospital, Shanghai, China
- National Clinical Research Center for Eye Diseases, Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, China
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Sunilkumar S, VanCleave AM, McCurry CM, Toro AL, Stevens SA, Kimball SR, Dennis MD. REDD1-dependent GSK3β dephosphorylation promotes NF-κB activation and macrophage infiltration in the retina of diabetic mice. J Biol Chem 2023; 299:104991. [PMID: 37392853 PMCID: PMC10407432 DOI: 10.1016/j.jbc.2023.104991] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 06/12/2023] [Accepted: 06/21/2023] [Indexed: 07/03/2023] Open
Abstract
Increasing evidence supports a role for inflammation in the early development and progression of retinal complications caused by diabetes. We recently demonstrated that the stress response protein regulated in development and DNA damage response 1 (REDD1) promotes diabetes-induced retinal inflammation by sustaining canonical activation of nuclear transcription factor, NF-κB. The studies here were designed to identify signaling events whereby REDD1 promotes NF-κB activation in the retina of diabetic mice. We observed increased REDD1 expression in the retina of mice after 16 weeks of streptozotocin (STZ)-induced diabetes and found that REDD1 was essential for diabetes to suppress inhibitory phosphorylation of glycogen synthase kinase 3β (GSK3β) at S9. In human retinal MIO-M1 Müller cell cultures, REDD1 deletion prevented dephosphorylation of GSK3β and increased NF-κB activation in response to hyperglycemic conditions. Expression of a constitutively active GSK3β variant restored NF-κB activation in cells deficient for REDD1. In cells exposed to hyperglycemic conditions, GSK3β knockdown inhibited NF-κB activation and proinflammatory cytokine expression by preventing inhibitor of κB kinase complex autophosphorylation and inhibitor of κB degradation. In both the retina of STZ-diabetic mice and in Müller cells exposed to hyperglycemic conditions, GSK3 inhibition reduced NF-κB activity and prevented an increase in proinflammatory cytokine expression. In contrast with STZ-diabetic mice receiving a vehicle control, macrophage infiltration was not observed in the retina of STZ-diabetic mice treated with GSK3 inhibitor. Collectively, the findings support a model wherein diabetes enhances REDD1-dependent activation of GSK3β to promote canonical NF-κB signaling and the development of retinal inflammation.
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Affiliation(s)
- Siddharth Sunilkumar
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, Pennsylvania, USA
| | - Ashley M VanCleave
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, Pennsylvania, USA
| | - Christopher M McCurry
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, Pennsylvania, USA
| | - Allyson L Toro
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, Pennsylvania, USA
| | - Shaunaci A Stevens
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, Pennsylvania, USA
| | - Scot R Kimball
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, Pennsylvania, USA
| | - Michael D Dennis
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, Pennsylvania, USA; Department of Ophthalmology, Penn State College of Medicine, Hershey, Pennsylvania, USA.
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Qiu T, Zhou J, Ji B, Yuan L, Weng T, Liu H. Transcription factor c-fos induces the development of premature ovarian insufficiency by regulating MALAT1/miR-22-3p/STAT1 network. J Ovarian Res 2023; 16:144. [PMID: 37480147 PMCID: PMC10362627 DOI: 10.1186/s13048-023-01212-3] [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: 02/27/2023] [Accepted: 06/17/2023] [Indexed: 07/23/2023] Open
Abstract
BACKGROUND The current study attempted to investigate the role of transcription factor c-fos in the development of premature ovarian insufficiency (POI) as well as the underlying mechanism involving the MALAT1/miR-22-3p/STAT1 ceRNA network. METHODS Bioinformatics analysis was performed to extract POI-related microarray dataset for identifying the target genes. Interaction among c-fos, MALAT1, miR-22-3p, and STAT1 was analyzed. An in vivo POI mouse model was prepared followed by injection of sh-c-fos and sh-STAT1 lentiviruses. Besides, an in vitro POI cell model was constructed to study the regulatory roles of c-fos, MALAT1, miR-22-3p, and STAT1. RESULTS c-fos, MALAT1, and STAT1 were highly expressed in ovarian tissues from POI mice and CTX-induced KGN cells, while miR-22-3p was poorly expressed. c-fos targeted MALAT1 and promoted MALAT1 transcription. MALAT1 competitively bound to miR-22-3p and miR-22-3p could suppress STAT1 expression. Mechanically, c-fos aggravated ovarian function impairment in POI mice and inhibited KGN cell proliferation through regulation of the MALAT1/miR-22-3p/STAT1 regulatory network. CONCLUSION Our findings highlighted inducing role of the transcription factor c-fos in POI through modulation of the MALAT1/miR-22-3p/STAT1 ceRNA network.
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Affiliation(s)
- Ting Qiu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinan University, No. 613, West Huangpu Avenue, Tianhe District, Guangzhou, Guangdong Province, 510630, P.R. China
- Department of Obstetrics and Gynecology, Guangzhou Women and Children's Medical Center, No. 9, Jinsui Road, Guangzhou, Guangdong Province, 510623, P.R. China
| | - Jie Zhou
- Department of Obstetrics and Gynecology, Guangzhou Women and Children's Medical Center, No. 9, Jinsui Road, Guangzhou, Guangdong Province, 510623, P.R. China
| | - Bing Ji
- Department of Obstetrics and Gynecology, Guangzhou Women and Children's Medical Center, No. 9, Jinsui Road, Guangzhou, Guangdong Province, 510623, P.R. China
| | - Liuyang Yuan
- Department of Obstetrics and Gynecology, Guangzhou Women and Children's Medical Center, No. 9, Jinsui Road, Guangzhou, Guangdong Province, 510623, P.R. China
| | - Tingsong Weng
- Department of Obstetrics and Gynecology, Guangzhou Women and Children's Medical Center, No. 9, Jinsui Road, Guangzhou, Guangdong Province, 510623, P.R. China
| | - Huishu Liu
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Jinan University, No. 613, West Huangpu Avenue, Tianhe District, Guangzhou, Guangdong Province, 510630, P.R. China.
- Department of Obstetrics and Gynecology, Guangzhou Women and Children's Medical Center, No. 9, Jinsui Road, Guangzhou, Guangdong Province, 510623, P.R. China.
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Bai Y, Xie M, Zhu Y. Mechanism underlying Müller cell pyroptosis and its role in the development of proliferative vitreoretinopathy. Clinics (Sao Paulo) 2023; 78:100241. [PMID: 37418795 DOI: 10.1016/j.clinsp.2023.100241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 06/08/2023] [Accepted: 06/19/2023] [Indexed: 07/09/2023] Open
Abstract
OBJECTIVES To explore the mechanism underlying Müller Cell Pyroptosis (MCP) and its role in the development of Proliferative Vitreoretinopathy (PVR). METHOD The expression of pyroptosis-related factors, namely, cysteinyl aspartate-specific proteinase (caspase-1), interleukin (IL)-1β, IL-18, and Gasdermin D (GSDMD), was detected by quantitative Reverse Transcription Polymerase Chain Reaction (qRT-PCR) and western blotting at the mRNA and protein levels, respectively, in retinal tissues. Müller and spontaneously Arising Retinal Pigment Epithelia (ARPE)-19 primary cells with GSDMD overexpression or knockdown were cultivated. Western blotting was used to detect the levels of the following pyroptosis-related factors in retinal tissues: caspase-1, IL-1β, IL-18, and GSDMD. Through Cell Adhesion (CA) experiments, the changes in ARPE-19 CA in each group were observed. The migration and invasion of ARPE-19 cells were measured using the Transwell assay. The proliferation of ARPE-19 cells was measured with a Cell Counting Kit 8 (CCK-8) assay. Finally, the expression of the cytokines IL-1β and IL-18 in the ARPE-19 cell culture medium was detected using the Enzyme-Linked Immunosorbent Assay (ELISA). RESULTS Compared with the surrounding normal tissues, the expression of caspase-1, IL-1β, IL-18, and GSDMD at the protein and mRNA levels in the retinal proliferative membrane samples of the patients decreased significantly (p < 0.05). MCP significantly enhanced ARPE-19 CA, migration and invasion, proliferation, and cytokine expression (p < 0.05). CONCLUSIONS MCP can promote the development of PVR lesions.
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Affiliation(s)
- Yue Bai
- Department of Ophthalmology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Maosong Xie
- Department of Ophthalmology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
| | - Yihua Zhu
- Department of Ophthalmology, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China.
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Hoorzad P, Mousavinasab F, Tofigh P, Kalahroud EM, Aghaei-Zarch SM, Salehi A, Fattahi M, Le BN. Understanding the lncRNA/miRNA-NFκB regulatory network in Diabetes Mellitus: From function to clinical translation. Diabetes Res Clin Pract 2023:110804. [PMID: 37369279 DOI: 10.1016/j.diabres.2023.110804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/24/2023] [Accepted: 06/22/2023] [Indexed: 06/29/2023]
Abstract
Diabetes mellitus (DM) and its significant ramifications make out one of the primary reasons behind morbidity worldwide. Noncoding RNAs (ncRNAs), such as microRNAs and long noncoding RNAs, are involved in regulating manifold biological processes, including diabetes initiation and progression. One of the established pathways attributed to DM development is NF-κB signaling. Neurons, β cells, adipocytes, and hepatocytes are among the metabolic tissues where NF-κB is known to produce a range of inflammatory chemokines and cytokines. The direct or indirect role of ncRNAs such as lncRNAs and miRNAs on the NF-κB signaling pathway and DM development has been supported by many studies. As a result, effective diabetes treatment and preventive methods will benefit from a comprehensive examination of the interplay between NF-κB and ncRNAs. Herein, we provide a concise overview of the role of NF-κB-mediated signaling pathways in diabetes mellitus and its consequences. The reciprocal regulation of ncRNAs and the NF-κB signaling pathway in diabetes is then discussed, shedding light on the pathogenesis of the illness and its possible therapeutic interventions.
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Affiliation(s)
- Parisa Hoorzad
- Department of Molecular and cellular biology, Faculty of basic sciences and Advanced technologies in Biology, University of Science and Culture, ACECR, Tehran, Iran
| | | | - Pouya Tofigh
- Department of Biology, Faculty of Sciences, University of Guilan, Rasht, Iran
| | | | - Seyed Mohsen Aghaei-Zarch
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Salehi
- Department of Cellular and Molecular Biology, Faculity of New Science and technology, Tehran Medical Branch, Islamic Azad University, Tehran, Iran.
| | - Mehdi Fattahi
- Institute of Research and Development, Duy Tan University, Da Nang, Vietnam; School of engineering & Technology, Duy Tan University, Da Nang, Vietnam.
| | - Binh Nguyen Le
- Institute of Research and Development, Duy Tan University, Da Nang, Vietnam; School of engineering & Technology, Duy Tan University, Da Nang, Vietnam
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Zhang Y, Gao Y, Jiang Y, Ding Y, Chen H, Xiang Y, Zhan Z, Liu X. Histone demethylase KDM5B licenses macrophage-mediated inflammatory responses by repressing Nfkbia transcription. Cell Death Differ 2023; 30:1279-1292. [PMID: 36914768 PMCID: PMC10154333 DOI: 10.1038/s41418-023-01136-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 02/09/2023] [Accepted: 02/14/2023] [Indexed: 03/16/2023] Open
Abstract
Macrophages play a critical role in the immune homeostasis and host defense against invading pathogens. However, uncontrolled activation of inflammatory macrophages leads to tissue injury and even fuels autoimmunity. Hence the molecular mechanisms underlying macrophage activation need to be further elucidated. The effects of epigenetic modifications on the function of immune cells draw increasing attention. Here, we demonstrated that lysine-specific demethylase 5B (KDM5B), a classical transcriptional repressor in stem cell development and cancer, was required for the full activation of NF-κB signaling cascade and pro-inflammatory cytokine production in macrophages. KDM5B deficiency or inhibitor treatment protected mice from immunologic injury in both collagen-induced arthritis (CIA) model and endotoxin shock model. Genome-wide analysis of KDM5B-binding peaks identified that KDM5B was selectively recruited to the promoter of Nfkbia, the gene encoding IκBα, in activated macrophages. KDM5B mediated the H3K4me3 modification erasing and decreased chromatin accessibility of Nfkbia gene locus, coordinating the elaborate suppression of IκBα expression and the enhanced NF-κB-mediated macrophage activation. Our finding identifies the indispensable role of KDM5B in macrophage-mediated inflammatory responses and provides a candidate therapeutic target for autoimmune and inflammatory disorders.
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Affiliation(s)
- Yunkai Zhang
- Department of Pathogen Biology, Naval Medical University, Shanghai, 200433, China
- National Key Laboratory of Medical Immunology, Naval Medical University, Shanghai, 200433, China
| | - Ying Gao
- Department of Rheumatology, Changhai Hospital, Naval Medical University, Shanghai, 200433, China
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200120, China
| | - Yuyu Jiang
- Department of Pathogen Biology, Naval Medical University, Shanghai, 200433, China
| | - Yingying Ding
- Department of Pathogen Biology, Naval Medical University, Shanghai, 200433, China
| | - Huiying Chen
- Department of Pathogen Biology, Naval Medical University, Shanghai, 200433, China
| | - Yan Xiang
- Department of Pathogen Biology, Naval Medical University, Shanghai, 200433, China
| | - Zhenzhen Zhan
- Key Laboratory of Arrhythmias of the Ministry of Education of China, Research Center for Translational Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200120, China.
- Department of Liver Surgery, Shanghai Institute of Transplantation, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China.
| | - Xingguang Liu
- Department of Pathogen Biology, Naval Medical University, Shanghai, 200433, China.
- National Key Laboratory of Medical Immunology, Naval Medical University, Shanghai, 200433, China.
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Jia K, Xiong H, Yuan W, Huang L, Xu J, Lu C, Hu Y, Huang K, Luo Q, Ma J, Lu H. Diflovidazin damages the hematopoietic stem cells to zebrafish embryos via the TLR4/ NF-κB/ p53 pathway. FISH & SHELLFISH IMMUNOLOGY 2023; 135:108672. [PMID: 36893927 DOI: 10.1016/j.fsi.2023.108672] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 02/13/2023] [Accepted: 03/07/2023] [Indexed: 06/18/2023]
Abstract
Exposure to environmental contaminants frequently induces the occurrence of blood diseases, but the underlying molecular mechanisms are scarcely known. The toxicity of Diflovidazin (DFD), a widely used mite-remover, to the blood system of non-target organisms requires urgent elucidation. To investigate the deleterious effects of DFD (2, 2.5, and 3 mg/L) on the development and survive of hematopoietic stem cells (HSCs), the zebrafish model was used in this study. DFD exposure reduced the number of HSCs and their subtypes, including macrophages, neutrophils, thymus T-cells, erythrocytes, and platelets. The significant changes in the abnormal apoptosis and differentiation of HSCs were the major reasons for the reduction in blood cells. Using small-molecule antagonists and p53 morpholino revealed that the NF-κB/p53 pathway was responsible for the apoptosis of HSCs upon DFD exposure. The restoration results attributed to the TLR4 inhibitor and molecular docking showed that the TLR4 protein, which was upstream of NF-κB signaling, played a vital role in DFD toxicology. This study elucidates the role and molecular mechanism of DFD in damaging zebrafish HSCs. It provides a theoretical basis for the occurrence of various blood diseases in zebrafish and other organisms.
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Affiliation(s)
- Kun Jia
- Ganzhou Key Laboratory for Drug Screening and Discovery, Gannan Normal University, Ganzhou, 341000, Jiangxi, China
| | - Haibin Xiong
- Ganzhou Key Laboratory for Drug Screening and Discovery, Gannan Normal University, Ganzhou, 341000, Jiangxi, China
| | - Wei Yuan
- Ganzhou Key Laboratory for Drug Screening and Discovery, Gannan Normal University, Ganzhou, 341000, Jiangxi, China
| | - Lirong Huang
- Ganzhou Key Laboratory for Drug Screening and Discovery, Gannan Normal University, Ganzhou, 341000, Jiangxi, China
| | - Jiaxin Xu
- Ganzhou Key Laboratory for Drug Screening and Discovery, Gannan Normal University, Ganzhou, 341000, Jiangxi, China
| | - Chen Lu
- Ganzhou Key Laboratory for Drug Screening and Discovery, Gannan Normal University, Ganzhou, 341000, Jiangxi, China
| | - Ying Hu
- Ganzhou Key Laboratory for Drug Screening and Discovery, Gannan Normal University, Ganzhou, 341000, Jiangxi, China
| | - Kaijie Huang
- Ganzhou Key Laboratory for Drug Screening and Discovery, Gannan Normal University, Ganzhou, 341000, Jiangxi, China
| | - Qiang Luo
- Ganzhou Key Laboratory for Drug Screening and Discovery, Gannan Normal University, Ganzhou, 341000, Jiangxi, China
| | - Jinze Ma
- Ganzhou Key Laboratory for Drug Screening and Discovery, Gannan Normal University, Ganzhou, 341000, Jiangxi, China
| | - Huiqiang Lu
- Ganzhou Key Laboratory for Drug Screening and Discovery, Gannan Normal University, Ganzhou, 341000, Jiangxi, China; Jiangxi Engineering Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases, Jiangxi Key Laboratory of Developmental Biology of Organs, Affiliated Hospital of Jinggangshan University, Ji'an, 343009, China.
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48
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Jang WY, Hwang JY, Cho JY. Ginsenosides from Panax ginseng as Key Modulators of NF-κB Signaling Are Powerful Anti-Inflammatory and Anticancer Agents. Int J Mol Sci 2023; 24:6119. [PMID: 37047092 PMCID: PMC10093821 DOI: 10.3390/ijms24076119] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 03/20/2023] [Accepted: 03/22/2023] [Indexed: 04/14/2023] Open
Abstract
Nuclear factor kappa B (NF-κB) signaling pathways progress inflammation and immune cell differentiation in the host immune response; however, the uncontrollable stimulation of NF-κB signaling is responsible for several inflammatory illnesses regardless of whether the conditions are acute or chronic. Innate immune cells, such as macrophages, microglia, and Kupffer cells, secrete pro-inflammatory cytokines, such as TNF-α, IL-6, and IL-1β, via the activation of NF-κB subunits, which may lead to the damage of normal cells, including neurons, cardiomyocytes, hepatocytes, and alveolar cells. This results in the occurrence of neurodegenerative disorders, cardiac infarction, or liver injury, which may eventually lead to systemic inflammation or cancer. Recently, ginsenosides from Panax ginseng, a historical herbal plant used in East Asia, have been used as possible options for curing inflammatory diseases. All of the ginsenosides tested target different steps of the NF-κB signaling pathway, ameliorating the symptoms of severe illnesses. Moreover, ginsenosides inhibit the NF-κB-mediated activation of cancer metastasis and immune resistance, significantly attenuating the expression of MMPs, Snail, Slug, TWIST1, and PD-L1. This review introduces current studies on the therapeutic efficacy of ginsenosides in alleviating NF-κB responses and emphasizes the critical role of ginsenosides in severe inflammatory diseases as well as cancers.
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Affiliation(s)
| | | | - Jae Youl Cho
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon 16419, Republic of Korea
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Zhao C, Li J, Cai H, Wu D, Tao S, Pi C, Zhu L, Xu N, Zhang T. An injectable hydrogel scaffold with IL-1β-activated MSC-derived exosomes for the treatment of endometritis. Biomater Sci 2023; 11:1422-1436. [PMID: 36602019 DOI: 10.1039/d2bm01586b] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Chronic endometritis is a common gynecological disease resulting from various long-term recurrent infections, and is closely related to myositis, miscarriage, and even infertility. There is still no satisfactory treatment method currently in clinical therapy. Mesenchymal stem cell (MSC)-derived exosomes, an important kind of paracrine product, have been used to treat inflammatory diseases due to their promising immunomodulatory function and tissue repair ability similar to MSCs. Considering that the exosome contents and functions are regulated by the MSC status and the MSC status is significantly influenced by its surrounding microenvironment, we propose a hypothesis that exosomes derived from inflammation-simulated MSCs will possess stronger inhibition ability for inflammation. Herein, we used IL-1β to activate rat bone MSCs for obtaining β-exo and constructed an injectable polypeptide hydrogel scaffold by loading β-exo (β-exo@pep) for an in situ slow release of β-exo. The results showed that the polypeptide hydrogel can provide a sustained release of exosomes in 14 days. The β-exo@pep composite hydrogel can more effectively inhibit the production of inflammatory factors such as TNF-α, IL-1β, and IFN-γ, while it can promote the production of anti-inflammatory factors such as Arg-1, IL-6, and IL-10. The β-exo@pep composite hydrogel significantly promoted cell migration, invasion, and vessel tube formation in vitro. The experiments in a rat model of endometritis proved that the β-exo@pep composite scaffold possessed excellent ability towards anti-inflammation and endometrial regeneration. The research studies on the molecular mechanism revealed that the protein expressions of HMGB1 and phosphorylated IKB-α and p65 are down-regulated in the cells treated with β-exo@pep, indicating the involvement of the NF-κB signaling pathway. This study provides an effective method for the treatment of chronic endometritis, which is promising for clinical use.
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Affiliation(s)
- Chenchen Zhao
- Institute of Biology and Medicine, College of Life Sciences and Health, Wuhan University of Science and Technology, Wuhan 430065, China.
| | - Jianping Li
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Huihua Cai
- Department of Obstetrics and Gynecology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, 510080, China
| | - Dingwei Wu
- Institute of Biology and Medicine, College of Life Sciences and Health, Wuhan University of Science and Technology, Wuhan 430065, China.
| | - Suwan Tao
- Institute of Biology and Medicine, College of Life Sciences and Health, Wuhan University of Science and Technology, Wuhan 430065, China.
| | - Chaoran Pi
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, Wuhan University of Science and Technology, Wuhan 430081, China
| | - Lian Zhu
- School of Chemical and Environmental Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Na Xu
- Institute of Biology and Medicine, College of Life Sciences and Health, Wuhan University of Science and Technology, Wuhan 430065, China.
| | - Tongcun Zhang
- Institute of Biology and Medicine, College of Life Sciences and Health, Wuhan University of Science and Technology, Wuhan 430065, China.
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50
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Tian Y, Cheng W, Wang H, Zeng C, Chen X. Ascorbic acid protects retinal pigment epithelial cells from high glucose by inhibiting the NF-κB signal pathway through MALAT1/IGF2BP3 axis. Diabet Med 2023; 40:e15050. [PMID: 36661363 DOI: 10.1111/dme.15050] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 01/13/2023] [Accepted: 01/18/2023] [Indexed: 01/21/2023]
Abstract
BACKGROUND Diabetic retinopathy (DR) is a common complication of diabetes with nocuous effects on patients' eye health, typically accompanies by excessive inflammation and oxidative stress. Insulin-like growth factor-2 messenger RNA-binding protein 3 (IGF2BP3) was engaged with inflammation, whereas its precise role in the DR process was unclear. And enhanced lncRNA metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) and decreased ascorbic acid (AA) were also found in DR. This study was to explore the regulatory role and mechanism of IGF2BP3, MALAT1 and AA in the high glucose (HG)-induced retinal pigment epithelial (RPE) cell injury. METHODS ARPE-19 cells were treated with HG to establish the in vitro RPE cell injury model. The mRNA and protein levels of the gene were evaluated by qRT-PCR or Western blot. Immunofluorescence detected the translocation condition of the p65 protein. Inflammatory factor levels were detected by ELISA assays. Apoptosis was detected by flow cytometry. The binding interaction of IGF2BP3 and MALAT1 was validated by RIP-qPCR assays. RESULTS In HG-induced RPE cell injury, IGF2BP3 expression, inflammatory response and apoptosis were enhanced. Next, the IGF2BP3 activated the NF-κB signalling to promote the RPE cell injury development. MALAT1 could directly bind with IGF2BP3 and up-regulate its expression. In addition, AA ameliorated the HG-induced RPE cell injury through the regulation of MALAT1. CONCLUSION Ascorbic acid ameliorated HG-induced RPE cell injury by repressing the NF-κB signalling pathway via modulating the MALAT1/IGF2BP3 axis.
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Affiliation(s)
- Yanming Tian
- First Affiliated Hospital of Xinjiang Medical University, Urumqi, P.R. China
| | - Wubo Cheng
- Department of Ophthalmology, People's Hospital of Hechuan District, Chongqing, P.R. China
| | - Haiyan Wang
- Department of Endocrine, Xinjiang 474th Hospital, Urumqi, Beijing Road, P.R. China
| | - Chengcheng Zeng
- Department of Ophthalmology, ChangZheng Hospital Affiliated to Naval Military Medical University, Shanghai, P.R. China
| | - Xueyi Chen
- Department of Ophthalmology, First Affiliated Hospital of Xinjiang Medical University, Urumqi, P.R. China
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