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Yang Y, Zhou B, Li M, Sun Y, Jiang X, Zhou X, Hu C, Zhang D, Luo H, Tan W, Yang X, Lei S. GO/Cu Nanosheet-Integrated Hydrogel Platform as a Bioactive and Biocompatible Scaffold for Enhanced Calvarial Bone Regeneration. Int J Nanomedicine 2024; 19:8309-8336. [PMID: 39161358 PMCID: PMC11330858 DOI: 10.2147/ijn.s467886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2024] [Accepted: 08/07/2024] [Indexed: 08/21/2024] Open
Abstract
Purpose The treatment of craniofacial bone defects caused by trauma, tumors, and infectious and degenerative diseases is a significant issue in current clinical practice. Following the rapid development of bone tissue engineering (BTE) in the last decade, bioactive scaffolds coupled with multifunctional properties are in high demand with regard to effective therapy for bone defects. Herein, an innovative bone scaffold consisting of GO/Cu nanoderivatives and GelMA-based organic-inorganic hybrids was reported for repairing full-thickness calvarial bone defect. Methods In this study, motivated by the versatile biological functions of nanomaterials and synthetic hydrogels, copper nanoparticle (CuNP)-decorated graphene oxide (GO) nanosheets (GO/Cu) were combined with methacrylated gelatin (GelMA)-based organic-inorganic hybrids to construct porous bone scaffolds that mimic the extracellular matrix (ECM) of bone tissues by photocrosslinking. The material characterizations, in vitro cytocompatibility, macrophage polarization and osteogenesis of the biohybrid hydrogel scaffolds were investigated, and two different animal models (BALB/c mice and SD rats) were established to further confirm the in vivo neovascularization, macrophage recruitment, biocompatibility, biosafety and bone regenerative potential. Results We found that GO/Cu-functionalized GelMA/β-TCP hydrogel scaffolds exhibited evidently promoted osteogenic activities, M2 type macrophage polarization, increased secretion of anti-inflammatory factors and excellent cytocompatibility, with favorable surface characteristics and sustainable release of Cu2+. Additionally, improved neovascularization, macrophage recruitment and tissue integration were found in mice implanted with the bioactive hydrogels. More importantly, the observations of microCT reconstruction and histological analysis in a calvarial bone defect model in rats treated with GO/Cu-incorporated hydrogel scaffolds demonstrated significantly increased bone morphometric values and newly formed bone tissues, indicating accelerated bone healing. Conclusion Taken together, this BTE-based bone repair strategy provides a promising and feasible method for constructing multifunctional GO/Cu nanocomposite-incorporated biohybrid hydrogel scaffolds with facilitated osteogenesis, angiogenesis and immunoregulation in one system, with the optimization of material properties and biosafety, it thereby demonstrates great application potential for correcting craniofacial bone defects in future clinical scenarios.
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Affiliation(s)
- Ying Yang
- Department of Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, People’s Republic of China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University, Changsha, Hunan, People’s Republic of China
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, Hunan, People’s Republic of China
| | - Bixia Zhou
- Department of Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, People’s Republic of China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University, Changsha, Hunan, People’s Republic of China
| | - Min Li
- Department of Oncology, Changsha Central Hospital, University of South China, Changsha, Hunan, People’s Republic of China
| | - Yishuai Sun
- Department of Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, People’s Republic of China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University, Changsha, Hunan, People’s Republic of China
| | - Xulei Jiang
- Department of Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, People’s Republic of China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University, Changsha, Hunan, People’s Republic of China
| | - Xinxin Zhou
- Department of Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, People’s Republic of China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University, Changsha, Hunan, People’s Republic of China
| | - Chengjun Hu
- Department of Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, People’s Republic of China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University, Changsha, Hunan, People’s Republic of China
| | - Dou Zhang
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, Hunan, People’s Republic of China
| | - Hang Luo
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, Hunan, People’s Republic of China
| | - Wuyuan Tan
- Department of Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, People’s Republic of China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University, Changsha, Hunan, People’s Republic of China
| | - Xinghua Yang
- Department of Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, People’s Republic of China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University, Changsha, Hunan, People’s Republic of China
| | - Shaorong Lei
- Department of Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, People’s Republic of China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University, Changsha, Hunan, People’s Republic of China
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Jiang A, Wang Z, Cheng R, Zhang S, Wu Q, Qin X. Long non-coding RNA SNHG12 regulates leptomeningeal collateral remodeling via RGMa after ischemic stroke. Neurotherapeutics 2024:e00429. [PMID: 39138027 DOI: 10.1016/j.neurot.2024.e00429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 07/26/2024] [Accepted: 07/26/2024] [Indexed: 08/15/2024] Open
Abstract
Leptomeningeal anastomoses or pial collateral arteries are crucial for restoring cerebral blood flow (CBF) after an ischemic stroke. Vascular smooth muscle cells (VSMCs) are hypothesized to regulate the extent of this adaptive response, while the specific molecular mechanisms underlying this process are still being investigated. SNHG12, a long non-coding RNA, has been shown to influence several diseases related angiogenesis, including osteosarcoma and gastric cancer. However, the role of SNHG12 in contractile VSMC dedifferentiation during collateral arteriogenesis-related strokes remains unclear. Here we demonstrated that SNHG12 is a positive regulator of MMP9 and VSMC dedifferentiation, which enhances pial collateral arteriogenesis following cerebrovascular occlusion. Pial collateral remodeling is limited by the crosstalk between SNHG12-MMP9 signaling in VSMCs, which is mediated through repulsive guidance molecule a (RGMa) regulation. Thus, targeting SNHG12 may represent a therapeutic strategy for improving collateral function, neural tissue health, and functional recovery following ischemic stroke.
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Affiliation(s)
- Anan Jiang
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Zijie Wang
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Ruiqi Cheng
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Shaoru Zhang
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Qisi Wu
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
| | - Xinyue Qin
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
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Annevelink CE, Westra J, Sala-Vila A, Harris WS, Tintle NL, Shearer GC. A Genome-Wide Interaction Study of Erythrocyte ω-3 Polyunsaturated Fatty Acid Species and Memory in the Framingham Heart Study Offspring Cohort. J Nutr 2024; 154:1640-1651. [PMID: 38141771 DOI: 10.1016/j.tjnut.2023.12.035] [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: 05/23/2023] [Revised: 12/14/2023] [Accepted: 12/19/2023] [Indexed: 12/25/2023] Open
Abstract
BACKGROUND Cognitive decline, and more specifically Alzheimer's disease, continues to increase in prevalence globally, with few, if any, adequate preventative approaches. Several tests of cognition are utilized in the diagnosis of cognitive decline that assess executive function, short- and long-term memory, cognitive flexibility, and speech and motor control. Recent studies have separately investigated the genetic component of both cognitive health, using these measures, and circulating fatty acids. OBJECTIVES We aimed to examine the potential moderating effect of main species of ω-3 polyunsaturated fatty acids (PUFAs) on an individual's genetically conferred risk of cognitive decline. METHODS The Offspring cohort from the Framingham Heart Study was cross-sectionally analyzed in this genome-wide interaction study (GWIS). Our sample included all individuals with red blood cell ω-3 PUFA, genetic, cognitive testing (via Trail Making Tests [TMTs]), and covariate data (N = 1620). We used linear mixed effects models to predict each of the 3 cognitive measures (TMT A, TMT B, and TMT D) by each ω-3 PUFA, single nucleotide polymorphism (SNP) (0, 1, or 2 minor alleles), ω-3 PUFA by SNP interaction term, and adjusting for sex, age, education, APOE ε4 genotype status, and kinship (relatedness). RESULTS Our analysis identified 31 unique SNPs from 24 genes reaching an exploratory significance threshold of 1×10-5. Fourteen of the 24 genes have been previously associated with the brain/cognition, and 5 genes have been previously associated with circulating lipids. Importantly, 8 of the genes we identified, DAB1, SORCS2, SERINC5, OSBPL3, CPA6, DLG2, MUC19, and RGMA, have been associated with both cognition and circulating lipids. We identified 22 unique SNPs for which individuals with the minor alleles benefit substantially from increased ω-3 fatty acid concentrations and 9 unique SNPs for which the common homozygote benefits. CONCLUSIONS In this GWIS of ω-3 PUFA species on cognitive outcomes, we identified 8 unique genes with plausible biology suggesting individuals with specific polymorphisms may have greater potential to benefit from increased ω-3 PUFA intake. Additional replication in prospective settings with more diverse samples is needed.
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Affiliation(s)
- Carmen E Annevelink
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, United States
| | - Jason Westra
- Fatty Acid Research Institute (FARI), Sioux Falls, SD, United States
| | - Aleix Sala-Vila
- Fatty Acid Research Institute (FARI), Sioux Falls, SD, United States; Cardiovascular Risk and Nutrition, Hospital del Mar Research Institute, Barcelona, Spain; Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - William S Harris
- Fatty Acid Research Institute (FARI), Sioux Falls, SD, United States; Sanford School of Medicine, University of South Dakota, Sioux Falls, SD, United States
| | - Nathan L Tintle
- Fatty Acid Research Institute (FARI), Sioux Falls, SD, United States; Department of Population Health Nursing Science, College of Nursing, University of Illinois Chicago, Chicago, IL, United States
| | - Gregory C Shearer
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, United States.
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Yuan X, Jiang C, Xue Y, Guo F, Luo M, Guo L, Gao Y, Yuan T, Xu H, Chen H. KLF13 promotes VSMCs phenotypic dedifferentiation by directly binding to the SM22α promoter. J Cell Physiol 2024; 239:e31251. [PMID: 38634445 DOI: 10.1002/jcp.31251] [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: 10/11/2023] [Revised: 02/24/2024] [Accepted: 02/28/2024] [Indexed: 04/19/2024]
Abstract
Krüppel-like factor 13 (KLF13), a zinc finger transcription factor, is considered as a potential regulator of cardiomyocyte differentiation and proliferation during heart morphogenesis. However, its precise role in the dedifferentiation of vascular smooth muscle cells (VSMCs) during atherosclerosis and neointimal formation after injury remains poorly understood. In this study, we investigated the relationship between KLF13 and SM22α expression in normal and atherosclerotic plaques by bioanalysis, and observed a significant increase in KLF13 levels in the atherosclerotic plaques of both human patients and ApoE-/- mice. Knockdown of KLF13 was found to ameliorate intimal hyperplasia following carotid artery injury. Furthermore, we discovered that KLF13 directly binds to the SM22α promoter, leading to the phenotypic dedifferentiation of VSMCs. Remarkably, we observed a significant inhibition of platelet-derived growth factor BB-induced VSMCs dedifferentiation, proliferation, and migration when knocked down KLF13 in VSMCs. This inhibitory effect of KLF13 knockdown on VCMC function was, at least in part, mediated by the inactivation of p-AKT signaling in VSMCs. Overall, our findings shed light on a potential therapeutic target for treating atherosclerotic lesions and restenosis after vascular injury.
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MESH Headings
- Animals
- Humans
- Male
- Mice
- Atherosclerosis/genetics
- Atherosclerosis/pathology
- Atherosclerosis/metabolism
- Carotid Artery Injuries/pathology
- Carotid Artery Injuries/genetics
- Carotid Artery Injuries/metabolism
- Cell Dedifferentiation
- Cell Movement/genetics
- Cell Proliferation/genetics
- Cells, Cultured
- Kruppel-Like Transcription Factors/metabolism
- Kruppel-Like Transcription Factors/genetics
- Mice, Inbred C57BL
- Muscle Proteins/genetics
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/pathology
- Neointima/metabolism
- Neointima/pathology
- Neointima/genetics
- Phenotype
- Plaque, Atherosclerotic/pathology
- Plaque, Atherosclerotic/metabolism
- Plaque, Atherosclerotic/genetics
- Promoter Regions, Genetic/genetics
- Proto-Oncogene Proteins c-akt/metabolism
- Repressor Proteins/genetics
- Repressor Proteins/metabolism
- Signal Transduction
- Cell Cycle Proteins
- Microfilament Proteins/genetics
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Affiliation(s)
- Xiaofan Yuan
- Department of General Practice, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Chuan Jiang
- Department of Neurosurgery, The Southwest Medical University, Luzhou, Sichuan, China
| | - Yuzhou Xue
- Department of Cardiology, Peking University Third Hospital, Beijing, China
| | - Fuqiang Guo
- Department of Neurology, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Minghao Luo
- Department of Cardiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Lei Guo
- Department of Neurology, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Yang Gao
- Department of General Practice, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Tongling Yuan
- Department of General Practice, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Hui Xu
- Department of General Practice, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
| | - Hong Chen
- Department of General Practice, Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan, China
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Yuan X, Shen G, Xiao H, Wang Z, Ma Y, Qin X. Netrin-1 and RGMa: Novel Regulators of Atherosclerosis-Related Diseases. Cardiovasc Drugs Ther 2023:10.1007/s10557-023-07478-5. [PMID: 37439909 DOI: 10.1007/s10557-023-07478-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/26/2023] [Indexed: 07/14/2023]
Abstract
BACKGROUNDS Neuronal guidance proteins (NGPs) have been demonstrated to guide the elongation of neuronal axonal growth cones in the developing central nervous system. Non-neuronal functions of NGPs have also been described, especially in relation to atherosclerosis. FINDINGS Netrin-1 and repulsive guidance molecule a (RGMa) are NGPs that have been shown to regulate endothelial cell adhesion and angiogenesis, macrophage migration and apoptosis, smooth muscle cells (SMCs) phenotypic dedifferentiation and mobility, chemokine activities, and inflammatory responses during atherosclerosis initiation and progression. PURPOSES However, mechanistic studies have generated controversy about the specific role of Netrin-1 in atherosclerosis due to the diversity of its structure, receptors and cell sources, and the actions of RGMa in atherosclerosis have not been reported in previous reviews. Therefore, the current work reviews the evidence for roles of Netrin-1 and RGMa in the initiation and progression of atherosclerosis and discusses potential therapeutic targets in the future.
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Affiliation(s)
- Xiaofan Yuan
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, 1 Yixueyuan Road, Chongqing, Yuzhong District, China
| | - Guanru Shen
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, 1 Yixueyuan Road, Chongqing, Yuzhong District, China
| | - Hongmei Xiao
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, 1 Yixueyuan Road, Chongqing, Yuzhong District, China
| | - Zijie Wang
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, 1 Yixueyuan Road, Chongqing, Yuzhong District, China
| | - Yue Ma
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, 1 Yixueyuan Road, Chongqing, Yuzhong District, China
| | - Xinyue Qin
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, 1 Yixueyuan Road, Chongqing, Yuzhong District, China.
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Anerillas C, Altés G, Gorospe M. MAPKs in the early steps of senescence implemEMTation. Front Cell Dev Biol 2023; 11:1083401. [PMID: 37009481 PMCID: PMC10060890 DOI: 10.3389/fcell.2023.1083401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 03/03/2023] [Indexed: 03/18/2023] Open
Abstract
Evidence is accumulating that the earliest stages of the DNA damage response can direct cells toward senescence instead of other cell fates. In particular, tightly regulated signaling through Mitogen-Activated Protein Kinases (MAPKs) in early senescence can lead to a sustained pro-survival program and suppress a pro-apoptotic program. Importantly, an epithelial-to-mesenchymal Transition (EMT)-like program appears essential for preventing apoptosis and favoring senescence following DNA damage. In this review, we discuss how MAPKs might influence EMT features to promote a senescent phenotype that increases cell survival at the detriment of tissue function.
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