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Dash S, Trainor PA. Nucleolin loss of function leads to aberrant Fibroblast Growth Factor signaling and craniofacial anomalies. Development 2022; 149:dev200349. [PMID: 35762670 PMCID: PMC9270975 DOI: 10.1242/dev.200349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 04/25/2022] [Indexed: 11/23/2022]
Abstract
Ribosomal RNA (rRNA) transcription and ribosome biogenesis are global processes required for growth and proliferation of all cells, yet perturbation of these processes in vertebrates leads to tissue-specific defects termed ribosomopathies. Mutations in rRNA transcription and processing proteins often lead to craniofacial anomalies; however, the cellular and molecular reasons for these defects are poorly understood. Therefore, we examined the function of the most abundant nucleolar phosphoprotein, Nucleolin (Ncl), in vertebrate development. ncl mutant (ncl-/-) zebrafish present with craniofacial anomalies such as mandibulofacial hypoplasia. We observed that ncl-/- mutants exhibited decreased rRNA synthesis and p53-dependent apoptosis, consistent with a role in ribosome biogenesis. However, we found that Nucleolin also performs functions not associated with ribosome biogenesis. We discovered that the half-life of fgf8a mRNA was reduced in ncl-/- mutants, which perturbed Fgf signaling, resulting in misregulated Sox9a-mediated chondrogenesis and Runx2-mediated osteogenesis. Consistent with this model, exogenous FGF8 treatment significantly rescued the cranioskeletal phenotype in ncl-/- zebrafish, suggesting that Nucleolin regulates osteochondroprogenitor differentiation. Our work has therefore uncovered tissue-specific functions for Nucleolin in rRNA transcription and post-transcriptional regulation of growth factor signaling during embryonic craniofacial development.
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Affiliation(s)
- Soma Dash
- Stowers Institute for Medical Research, Kansas City, MO 64110, USA
| | - Paul A. Trainor
- Stowers Institute for Medical Research, Kansas City, MO 64110, USA
- Department of Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, KS 66160, USA
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2
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Ripszky Totan A, Greabu M, Stanescu-Spinu II, Imre M, Spinu TC, Miricescu D, Ilinca R, Coculescu EC, Badoiu SC, Coculescu BI, Albu C. The Yin and Yang dualistic features of autophagy in thermal burn wound healing. Int J Immunopathol Pharmacol 2022; 36:3946320221125090. [PMID: 36121435 PMCID: PMC9490459 DOI: 10.1177/03946320221125090] [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] [Indexed: 12/09/2022] Open
Abstract
Burn healing should be regarded as a dynamic process consisting of two main, interrelated phases: (a) the inflammatory phase when neutrophils and monocytes infiltrate the injury site, through localized vasodilation and fluid extravasation, and (b) the proliferative-remodeling phase, which represents a key event in wound healing. In the skin, both canonical autophagy (induced by starvation, oxidative stress, and environmental aggressions) and non-canonical or selective autophagy have evolved to play a discrete, but, essential, “housekeeping” role, for homeostasis, immune tolerance, and survival. Experimental data supporting the pro-survival roles of autophagy, highlighting its Yang, luminous and positive feature of this complex but insufficient explored molecular pathway, have been reported. Autophagic cell death describes an “excessive” degradation of important cellular components that are necessary for normal cell function. This deadly molecular mechanism brings to light the darker, concealed, Yin feature of autophagy. Autophagy seems to perform dual, conflicting roles in the angiogenesis context, revealing once again, its Yin–Yang features. Autophagy with its Yin–Yang features remains the shadow player, able to decide quietly whether the cell survives or dies.
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Affiliation(s)
- Alexandra Ripszky Totan
- Department of Biochemistry, 367124Carol Davila University of Medicine and Pharmacy, Faculty of Dental Medicine, Romania
| | - Maria Greabu
- Department of Biochemistry, 367124Carol Davila University of Medicine and Pharmacy, Faculty of Dental Medicine, Romania
| | - Iulia-Ioana Stanescu-Spinu
- Department of Biochemistry, 367124Carol Davila University of Medicine and Pharmacy, Faculty of Dental Medicine, Romania
| | - Marina Imre
- Department of Complete Denture, Carol Davila University of Medicine and Pharmacy, Faculty of Dental Medicine, Romania
| | - Tudor-Claudiu Spinu
- Department of Fixed Prosthodontics and Occlusology, Carol Davila University of Medicine and Pharmacy, Faculty of Dental Medicine, Romania
| | - Daniela Miricescu
- Department of Biochemistry, 367124Carol Davila University of Medicine and Pharmacy, Faculty of Dental Medicine, Romania
| | - Radu Ilinca
- Department of Biophysics, Carol Davila University of Medicine and Pharmacy, Faculty of Dental Medicine, Romania
| | - Elena Claudia Coculescu
- Department of Oral Pathology, Carol Davila University of Medicine and Pharmacy, Faculty of Dental Medicine, Romania
| | - Silviu Constantin Badoiu
- Department of Anatomy and Embryology, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
| | - Bogdan-Ioan Coculescu
- Cantacuzino National Medico-Military Institute for Research and Development, Bucharest, Romania
| | - Crenguta Albu
- Department of Genetics, Carol Davila University of Medicine and Pharmacy, Faculty of Dental Medicine, Bucharest, Romania
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3
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Cui X, Huang X, Huang M, Zhou S, Guo L, Yu W, Duan M, Jiang B, Zeng J, Zhou J, Huang X, Liang P, Zhang P. miR-24-3p obstructs the proliferation and migration of HSFs after thermal injury by targeting PPAR-β and positively regulated by NF-κB. Exp Dermatol 2021; 31:841-853. [PMID: 34932851 DOI: 10.1111/exd.14517] [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: 05/08/2021] [Revised: 12/03/2021] [Accepted: 12/19/2021] [Indexed: 11/30/2022]
Abstract
Thermal injury repair is a complex process during which the maintenance of the proliferation and migration of human skin fibroblasts (HSFs) exert a crucial role. MicroRNAs have been proven to exert an essential function in repairing skin burns. This study delves into the regulatory effects of miR-24-3p on the migration and proliferation of HSFs that have sustained a thermal injury; thereby, providing deeper insight into thermal injury repair pathogenesis. The PPAR-β protein expression level progressively increased in a time-dependent manner on the 12th , 24th , and 48th hour following the thermal injury of the HSFs. The knockdown of PPAR-β markedly suppressed the proliferation of and migration of HSF. Following thermal injury, the knockdown also promoted the inflammatory cytokine IL-6, TNF-, PTGS-2, and P65 expression. PPAR-β contrastingly exhibited an opposite trend. A targeted relationship between PPAR-β and miR-24-3p was predicted and verified. miR-24-3p inhibited thermal injured-HSFs proliferation and migration and facilitated inflammatory cytokine expression through the regulation of PPAR-β. p65 directly targeted the transcriptional precursor of miR-24 and promoted miR-24 expression. A negative correlation between miR-24-3p expression level and PPAR-β expression level in rats burnt dermal tissues was observed. Our findings reveal that miR-24-3p is conducive to rehabilitating the denatured dermis, which may be beneficial in providing effective therapy of skin burns.
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Affiliation(s)
- Xu Cui
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - Xu Huang
- Department of Hyperbaric Oxygen, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - Mitao Huang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - Situo Zhou
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - Le Guo
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - Wenchang Yu
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - Mengting Duan
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - Bimei Jiang
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, 410008, P. R. China
| | - Jizhang Zeng
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - Jie Zhou
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - Xiaoyuan Huang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - Pengfei Liang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - Pihong Zhang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
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4
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Tang Y, Lin X, Chen C, Tong Z, Sun H, Li Y, Liang P, Jiang B. Nucleolin Improves Heart Function During Recovery From Myocardial Infarction by Modulating Macrophage Polarization. J Cardiovasc Pharmacol Ther 2021; 26:386-395. [PMID: 33550832 DOI: 10.1177/1074248421989570] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
BACKGROUND Nucleolin has multiple functions within cell survival and proliferation pathways. Our previous studies have revealed that nucleolin can significantly reduce myocardial ischemia-reperfusion injury by promoting myocardial angiogenesis and reducing myocardial apoptosis. In this study, we attempted to determine the role of nucleolin in myocardial infarction (MI) injury recovery and the underlying mechanism. METHODS Male BALB/c mice aged 6-8 weeks were used to set up MI models by ligating the left anterior descending coronary artery. Nucleolin expression in the heart was downregulated by intramyocardial injection of a lentiviral vector expressing nucleolin-specific small interfering RNA. Macrophage infiltration and polarization were measured by real-time polymerase chain reaction, flow cytometry, and immunofluorescence. Cytokines were detected by enzyme-linked immunosorbent assay. RESULTS Nucleolin expression in myocardium after MI induction decreased a lot at early phase and elevated at late phase. Nucleolin knockdown impaired heart systolic and diastolic functions and decreased the survival rate after MI. Macrophage infiltration increased in the myocardium after MI. Most macrophages belonged to the M1 phenotype at early phase (2 days) and the M2 phenotype increased greatly at late phase after MI. Nucleolin knockdown in the myocardium led to a decrease in M2 macrophage polarization with no effect on macrophage infiltration after MI. Furthermore, Notch3 and STAT6, key regulators of M2 macrophage polarization, were upregulated by nucleolin in RAW 264.7 macrophages. CONCLUSIONS Lack of nucleolin impaired heart function during recovery after MI by reducing M2 macrophage polarization. This finding probably points to a new therapeutic option for ischemic heart disease.
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Affiliation(s)
- Yuting Tang
- Department of Pathophysiology, Xiangya School of Medicine, 12570Central South University, Changsha, Hunan, China
- Sepsis Translational Medicine Key Laboratory of Hunan Province, Xiangya School of Medicine, 12570Central South University, Changsha, Hunan, China
| | - Xiaofang Lin
- Department of Pathophysiology, Xiangya School of Medicine, 12570Central South University, Changsha, Hunan, China
- Sepsis Translational Medicine Key Laboratory of Hunan Province, Xiangya School of Medicine, 12570Central South University, Changsha, Hunan, China
| | - Cheng Chen
- Department of Pathophysiology, Xiangya School of Medicine, 12570Central South University, Changsha, Hunan, China
- Sepsis Translational Medicine Key Laboratory of Hunan Province, Xiangya School of Medicine, 12570Central South University, Changsha, Hunan, China
| | - Zhongyi Tong
- Department of Pathology, The Second Xiangya Hospital of 12570Central South University, Changsha, Hunan, China
| | - Hui Sun
- Department of Pathophysiology, Xiangya School of Medicine, 12570Central South University, Changsha, Hunan, China
- Sepsis Translational Medicine Key Laboratory of Hunan Province, Xiangya School of Medicine, 12570Central South University, Changsha, Hunan, China
| | - Yuanbin Li
- Department of Pathophysiology, Xiangya School of Medicine, 12570Central South University, Changsha, Hunan, China
- Sepsis Translational Medicine Key Laboratory of Hunan Province, Xiangya School of Medicine, 12570Central South University, Changsha, Hunan, China
| | - Pengfei Liang
- Department of Burns and Plastic Surgery, Xiangya Hospital, 12570Central South University, Changsha, Hunan, China
| | - Bimei Jiang
- Department of Pathophysiology, Xiangya School of Medicine, 12570Central South University, Changsha, Hunan, China
- Sepsis Translational Medicine Key Laboratory of Hunan Province, Xiangya School of Medicine, 12570Central South University, Changsha, Hunan, China
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5
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Shi M, Zong X, Chen L, Guo X, Ding X. MiR-506-3p regulates autophagy and proliferation in post-burn skin fibroblasts through post-transcriptionally suppressing Beclin-1 expression. In Vitro Cell Dev Biol Anim 2020; 56:522-532. [PMID: 32754856 DOI: 10.1007/s11626-020-00472-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 06/01/2020] [Indexed: 12/14/2022]
Abstract
MicroRNAs (miRNAs) is involved in diverse biological processes of cells including dermal fibroblasts that contributed to wound healing and resulted in keloid scarring. MiR-506-3p has been identified as a tumor suppressor or oncogene in fibroblasts of various cancers, while the role of miR-506-3p in regulating functions of post-burn dermal fibroblasts is poorly known. In this study, miR-506-3p was confirmed to be significantly downregulated in burned tissues and heat-stimulated dermal fibroblasts. Expression levels of autophagy-related proteins suggested thermal stimulus promoting the autophagy in dermal fibroblasts. Then, miR-506-3p inhibition enhanced cell proliferation and cell cycle process in dermal fibroblasts after thermal stimulus, whereas overexpression of miR-506-3p showed the opposite effect. Western blot assay showed that inhibition of miR-506-3p resulted in the upregulation of the expression levels of LC3-II, ATG5, and structural protein collagen I, as well as the downregulation of p62. Marker proteins of intermolecular cross-links in collagen synthesis, including hydroxylysylpyridinoline (HP), lysinepyridine (LP), and lysyl hydroxylase 2 (LH2), were increased by miR-506-3p overexpression and decreased by miR-506-3p inhibition. Moreover, transfection with miR-506-3p mimic suppressed the proliferation and autophagy in heat-stimulated dermal fibroblasts in a dose-dependent manner. Subsequently, dual luciferase reporter gene assay demonstrated that Beclin-1 was a direct target of miR-506-3p, and reintroduction of Beclin-1 could antagonize the suppressive effect of miR-506-3p overexpression on fibroblast proliferation, autophagy, and the intermolecular cross-links in collagen synthesis. Taken together, our findings showed that miR-506-3p regulated autophagy and proliferation in post-burn skin fibroblasts through post-transcriptionally suppressing Beclin-1 expression.
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Affiliation(s)
- Min Shi
- School of Medicine, Xi'an Peihua University, Xi'an, China
| | - Xiaoming Zong
- Department of Oncology, Shaanxi Friendship Hospital, Xi'an, China
| | - Lei Chen
- School of Medicine, Xi'an Peihua University, Xi'an, China
| | - Xiaobo Guo
- Department of Hematology, Xi'an Central Hospital, Xi'an, China
| | - Xinqiang Ding
- Department of Dermatology, Xi'an Children's Hospital, 69 Xijuyuan Road, Lianhu District, Xi'an, 710000, China.
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6
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Huang M, Huang X, Jiang B, Zhang P, Guo L, Cui X, Zhou S, Ren L, Zhang M, Zeng J, Huang X, Liang P. linc00174-EZH2-ZNF24/Runx1-VEGFA Regulatory Mechanism Modulates Post-burn Wound Healing. MOLECULAR THERAPY. NUCLEIC ACIDS 2020; 21:824-836. [PMID: 32805486 PMCID: PMC7452087 DOI: 10.1016/j.omtn.2020.07.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 06/19/2020] [Accepted: 07/06/2020] [Indexed: 12/17/2022]
Abstract
Preservation of denatured dermis exerts promotive functions in wound healing and improves the appearance and function of skin. Angiogenesis is crucial for wound healing during burn injury. However, the potential molecular mechanism of angiogenesis in the recovery after burn injury remains to be elucidated. Herein, RNA chromatin immunoprecipitation (ChIP) sequencing analysis revealed upregulation of long intergenic non-coding RNA 00174 (linc00174) in the post-burn tissues. linc00174 overexpression promoted angiogenic activities of human umbilical vein endothelial cells (HUVECs) in the heat-denatured cell model, characterized by the promotion of cell proliferation, migration, and tube formation. Mechanistically, linc00174 directly bound to enhancer of zeste homolog 2 (EZH2), thus stimulating the protein level of trimethylation at lysine 27 of histone H3 (H3K27me3). Moreover, inhibition of EZH2 resulted in downregulation of ZNF24 and Runx1, as well as a decline of vascular endothelial growth factor A (VEGFA). Furthermore, EZH2 modulated epigenetic repression of ZNF24 and Runx1 through the promoter of H3K27me3. Additionally, ZNF24 and Runx1 both functioned as transcriptional inhibitors of VEGFA. Taken together, these findings uncover that linc00174 epigenetically inhibits ZNF24 and Runx1 expression through binding to EZH2, thus attenuating the suppression of VEGFA, contributing to the facilitation of angiogenesis during the recovery of heat-denatured endothelial cells.
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Affiliation(s)
- Mitao Huang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, P.R. China
| | - Xu Huang
- Department of Hyperbaric Oxygen, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, P.R. China
| | - Bimei Jiang
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha 410008, Hunan Province, P.R. China
| | - Pihong Zhang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, P.R. China
| | - Le Guo
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, P.R. China
| | - Xu Cui
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, P.R. China
| | - Situo Zhou
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, P.R. China
| | - Licheng Ren
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, P.R. China
| | - Minghua Zhang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, P.R. China
| | - Jizhang Zeng
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, P.R. China
| | - Xiaoyuan Huang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, P.R. China
| | - Pengfei Liang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha 410008, Hunan Province, P.R. China.
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7
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Zhou Q, Guan Y, Hou R, Wang J, Gao H, Li H, Zhao Y, Liu N, Wang Y, Li N, Yao S. PolyG mitigates silica-induced pulmonary fibrosis by inhibiting nucleolin and regulating DNA damage repair pathway. Biomed Pharmacother 2020; 125:109953. [PMID: 32036217 DOI: 10.1016/j.biopha.2020.109953] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 01/16/2020] [Accepted: 01/23/2020] [Indexed: 01/02/2023] Open
Abstract
Polyguanylic acid potassium salt (PolyG) has an anti-fibrotic G-quadruplex (G4) structure. It could inhibit the expression of nucleolin, a protein involved in cell proliferation and apoptosis. However, its role in regulating nucleolin in silicosis is still unknown. After instillation of 50 μl of crystalline silica suspension (50 mg/ml) into the trachea of C57BL/6 mice, we show that nucleolin expression is upregulated in mouse pulmonary tissue following the treatment with silica and that PolyG, which were injected 2.5 mg/kg body weight into mice by abdomen, could alleviate pulmonary fibrosis through inhibiting the expression of nucleolin. Further, we demonstrated that the expression of the DNA double-strand break (DSB) marker, γ-H2AX, increased in response to silica treatment. PolyG could efficiently reduce the protein expression of γ-H2AX and decreased the level of fibrosis-related genes, such as Col1a1 and Col3a1, as well as the levels of fibrosis-associated proteins α-SMA and vimentin in the lungs of silica-treated mice. These findings show that PolyG could regulate nucleolin and DNA damage repair to control fibrotic response in experimental silicosis and provide a new target for preventive intervention.
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Affiliation(s)
- Qiang Zhou
- School of Public Health, Xinxiang Medical University, Xinxiang, Henan China
| | - Yi Guan
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei China
| | - Ruiyan Hou
- School of Public Health, Xinxiang Medical University, Xinxiang, Henan China
| | - Junnan Wang
- School of Public Health, Xinxiang Medical University, Xinxiang, Henan China
| | - Hongsheng Gao
- Tianjin Key Laboratory for Prevention and Control of Occupational and Environmental Hazard, Tianjin, China
| | - Haibin Li
- School of Public Health, Xinxiang Medical University, Xinxiang, Henan China
| | - Yingzheng Zhao
- School of Public Health, Xinxiang Medical University, Xinxiang, Henan China
| | - Nan Liu
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei China
| | - Yongheng Wang
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei China
| | - Ning Li
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei China
| | - Sanqiao Yao
- School of Public Health, Xinxiang Medical University, Xinxiang, Henan China.
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8
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Jiang B, Tang Y, Wang H, Chen C, Yu W, Sun H, Duan M, Lin X, Liang P. Down-regulation of long non-coding RNA HOTAIR promotes angiogenesis via regulating miR-126/SCEL pathways in burn wound healing. Cell Death Dis 2020; 11:61. [PMID: 31974341 PMCID: PMC6978466 DOI: 10.1038/s41419-020-2247-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 01/08/2020] [Accepted: 01/08/2020] [Indexed: 01/30/2023]
Abstract
miR-126, an endothelial-specific microRNA, is associated to vascular integrity and angiogenesis. It is well established that angiogenesis plays a critical role in burn wound healing. However, there was a lack of understanding of the mechanism by which miR-126 regulates angiogenesis during burn wound healing. HOX transcript antisense intergenic RNA (HOTAIR) is a well-characterized long non-coding RNA (lncRNA) involved in cell proliferation, apoptosis, migration, and invasion of cancer cells. Sciellin (SCEL), a precursor to the cornified envelope of human keratinocytes, has been shown to inhibit migration and invasion capabilities of colorectal cancer cells. In this study, a cohort of 20 burn wound tissues and paired adjacent normal tissues were collected. LncRNA and messenger RNA expression profiles were screened by microarray analysis in five pairs of samples with mostly increased miR-126 levels. miR-126 was highly expressed in burn wound tissues and human umbilical vein endothelial cells (HUVECs) exposed to heat stress, whereas HOTAIR and SCEL were down-regulated after thermal injury. Bioinformatic analysis, dual luciferase reporter assay, and quantitative real-time PCR were conducted to validate that HOTAIR and SCEL competitively bind to miR-126 to function as the competitive endogenous RNA. miR-126 promoted endothelial cell proliferation, migration, and angiogenesis, but suppressed apoptosis, while HOTAIR and SCEL exerted opposite effects in HUVECs. The biological functions were determined by MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay, Annexin-V-FITC/PI (propidium iodide/fluorescein isothiocyanate) staining, transwell migration, and tube formation assays. Collectively, our study revealed that HOTAIR/miR-126/SCEL axis contributes to burn wound healing through mediating angiogenesis.
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Affiliation(s)
- Bimei Jiang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China.,Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China.,Sepsis Translational Medicine Key Laboratory of Hunan Province, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Yuting Tang
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China.,Sepsis Translational Medicine Key Laboratory of Hunan Province, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Hao Wang
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China.,Sepsis Translational Medicine Key Laboratory of Hunan Province, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Cheng Chen
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China.,Sepsis Translational Medicine Key Laboratory of Hunan Province, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Wenchang Yu
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hui Sun
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China.,Sepsis Translational Medicine Key Laboratory of Hunan Province, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Mengting Duan
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiaofang Lin
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, Hunan, China.,Sepsis Translational Medicine Key Laboratory of Hunan Province, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Pengfei Liang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan, China.
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9
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Yu W, Guo Z, Liang P, Jiang B, Guo L, Duan M, Huang X, Zhang P, Zhang M, Ren L, Zeng J, Huang X. Expression changes in protein-coding genes and long non-coding RNAs in denatured dermis following thermal injury. Burns 2019; 46:1128-1135. [PMID: 31852616 DOI: 10.1016/j.burns.2019.11.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 09/26/2019] [Accepted: 11/23/2019] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Thermal injury repair is a complex process during which maintaining the proliferation of human dermis fibroblasts (HDFs) and synthesis of extracellular matrix (ECM) plays a critical role. In the present study, we analyzed potential molecular markers and the probable association between differentially-expressed lncRNAs and protein-coding genes within denatured dermis following thermal injury, attempting to provide further insights to thermal injury repair pathogenesis. METHODS AND MAIN RESULTS We found that the expression of 3940 lncRNAs was increased, while that of 1438 lncRNAs was reduced in the denatured dermis following thermal injury when compared to normal tissue. Of them, 338 were upregulated and 154 were downregulated by more than 128 times. Via cross-check with another microarray profile analysis on differentially-expressed lncRNAs after thermal injury, LINC00302 was found to be downregulated after thermal injury; more importantly, this skin-specially expressed lncRNA is located near a series of genes related to multiple skin inflammation and skin barrier-associated genomes. LINC00302 overexpression promoted the cell viability and the protein levels of α-SMA and Collagen I in HDFs. CONCLUSIONS In conclusion, mRNAs and lncRNAs could be differentially expressed in the denatured dermis following thermal injury. mRNA and lncRNA regulatory signaling pathways could participate in thermal injury repair pathogenesis. More importantly, LINC00302 may play a critical role in thermal injury repair.
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Affiliation(s)
- Wenchang Yu
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Zaiwen Guo
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China; Department of Burn and Plastic Surgery, Suzhou Hospital Affiliated to Nanjing Medical University, Suzhou, Jiangsu 215002, PR China
| | - Pengfei Liang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China.
| | - Bimei Jiang
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, Hunan 410008, PR China
| | - Le Guo
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Mengting Duan
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Xu Huang
- Department of Hyperbaric Oxygen, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Pihong Zhang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Minghua Zhang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Licheng Ren
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Jizhang Zeng
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
| | - Xiaoyuan Huang
- Department of Burns and Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, PR China
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Pan C, Lang H, Zhang T, Wang R, Lin X, Shi P, Zhao F, Pang X. Conditioned medium derived from human amniotic stem cells delays H2O2‑induced premature senescence in human dermal fibroblasts. Int J Mol Med 2019; 44:1629-1640. [PMID: 31545472 PMCID: PMC6777671 DOI: 10.3892/ijmm.2019.4346] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Accepted: 07/08/2019] [Indexed: 12/25/2022] Open
Abstract
Stem cells derived from human amniotic membrane (hAM) are promising targets in regenerative medicine. A previous study focused on human amniotic stem cells in skin wound and scar-free healing. The present study aimed to investigate whether hydrogen peroxide (H2O2)-induced senescence of human dermal fibroblasts (hDFs) was influenced by the anti-aging effect of conditioned medium (CdM) derived from human amniotic stem cells. First, the biological function of two types of amniotic stem cells, namely human amniotic epithelial cells (hAECs) and human amniotic mesenchymal stem cells (hAMSCs), on hDFs was compared. The results of cell proliferation and wound healing assays showed that CdM promoted cell proliferation and migration. In addition, CdM from hAECs and hAMSCs significantly promoted proliferation of senescent hDFs induced by H2O2. These results indicated that CdM protects cells from damage caused by H2O2. Treatment with CdM decreased senescence-associated β-galactosidase activity and improved the entry of proliferating cells into the S phase. Simultaneously, it was found that CdM increased the activity of superoxide dismutase and catalase and decreased malondialdehyde by reducing H2O2-induced intracellular reactive oxygen species production. It was found that CdM downregulated H2O2-stimulated 8-hydroxydeoxy-guanosine and γ-H2AX levels and decreased the expression of the senescence-associated proteins p21 and p16. In conclusion, the findings indicated that the paracrine effects derived from human amniotic stem cells aided delaying oxidative stress-induced premature senescence.
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Affiliation(s)
- Changwei Pan
- Department of Stem Cells and Regenerative Medicine, Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, Liaoning 110013, P.R. China
| | - Hongxin Lang
- Department of Stem Cells and Regenerative Medicine, Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, Liaoning 110013, P.R. China
| | - Tao Zhang
- Department of Stem Cells and Regenerative Medicine, Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, Liaoning 110013, P.R. China
| | - Rui Wang
- Department of Stem Cells and Regenerative Medicine, Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, Liaoning 110013, P.R. China
| | - Xuewen Lin
- Department of Stem Cells and Regenerative Medicine, Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, Liaoning 110013, P.R. China
| | - Ping Shi
- Shenyang Amnion Biological Engineering Technology Research and Development Center Limited Company, Shenyang, Liaoning 110629, P.R. China
| | - Feng Zhao
- Department of Stem Cells and Regenerative Medicine, Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, Liaoning 110013, P.R. China
| | - Xining Pang
- Department of Stem Cells and Regenerative Medicine, Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, Liaoning 110013, P.R. China
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11
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Zhou S, Hokugo A, McClendon M, Zhang Z, Bakshi R, Wang L, Segovia LA, Rezzadeh K, Stupp SI, Jarrahy R. Bioactive peptide amphiphile nanofiber gels enhance burn wound healing. Burns 2019; 45:1112-1121. [DOI: 10.1016/j.burns.2018.06.008] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 06/08/2018] [Accepted: 06/16/2018] [Indexed: 12/18/2022]
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12
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Autophagy promotes angiogenesis via AMPK/Akt/mTOR signaling during the recovery of heat-denatured endothelial cells. Cell Death Dis 2018; 9:1152. [PMID: 30455420 PMCID: PMC6242874 DOI: 10.1038/s41419-018-1194-5] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 10/30/2018] [Accepted: 10/31/2018] [Indexed: 01/08/2023]
Abstract
Our previous study demonstrated that angiogenesis increased during the recovery of heat-denatured endothelial cells. However, the mechanism is still unclear. This study aimed to investigate the relation of autophagy and angiogenesis during the recovery of heat-denatured endothelial cells. A rat deep partial-thickness burn model and heat-denatured human umbilical vein endothelial cells (HUVECs) model (52 °C for 35 s) were used. Autophagy increased significantly in the dermis and HUVECs in a time-dependent manner after heat denaturation and recovery for 2-5 days. Rapamycin-mediated autophagy enhanced the pro-angiogenic effect, evidenced by increased proliferation and migration of HUVECs, and formation of tube-like structures. Autophagy inhibition by 3-Methyladenine (3-MA) abolished the angiogenesis in heat-denatured HUVECs after recovery for 3-5 days. Moreover, heat denaturation augmented the phosphorylation of AMP-activated protein kinase (AMPK) but reduced the phosphorylation of Akt and mTOR in HUVECs. Furthermore, autophagy inhibition by antioxidant NAC, compound C or AMPK siRNA impaired cell proliferation, migration and tube formation heat-denatured HUVECs. At last, the in vivo experiments also showed that inhibition of autophagy by bafilomycin A1 could suppress angiogenesis and recovery of heat-denatured dermis.Taken together, we firstly revealed that autophagy promotes angiogenesis via AMPK/Akt/mTOR signaling during the recovery of heat-denatured endothelial cells and may provide a potential therapeutic target for the recovery of heat-denatured dermis.
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Sharma VR, Thomas SD, Miller DM, Rezzoug F. Nucleolin Overexpression Confers Increased Sensitivity to the Anti-Nucleolin Aptamer, AS1411. Cancer Invest 2018; 36:475-491. [PMID: 30396283 PMCID: PMC6396827 DOI: 10.1080/07357907.2018.1527930] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 09/20/2018] [Indexed: 02/04/2023]
Abstract
AS1411 is an antiproliferative DNA aptamer, which binds the ubiquitous protein, nucleolin. In this study, we show that constitutive overexpression of nucleolin confers increased sensitivity to the growth inhibitory effects of AS1411. HeLa cells overexpressing nucleolin have an increased growth rate and invasiveness relative to control cells. Nucleolin overexpressing cells demonstrate increased growth inhibition in response to the AS1411 treatment, which correlates with increased apoptosis and cell cycle arrest, when compared to non-transfected cells. AS1411 induces nucleolin expression at the RNA and protein level in HeLa cells, suggesting a feedback loop with important implications for the clinical use of AS1411.
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Affiliation(s)
- Vivek R. Sharma
- University of Louisville, Division of Medical Oncology/Hematology, Department of Medicine, James Graham Brown Cancer Center, Louisville, Kentucky, USA
| | - Shelia D. Thomas
- University of Louisville, Division of Medical Oncology/Hematology, Department of Medicine, James Graham Brown Cancer Center, Louisville, Kentucky, USA
| | - Donald M. Miller
- University of Louisville, Division of Medical Oncology/Hematology, Department of Medicine, James Graham Brown Cancer Center, Louisville, Kentucky, USA
| | - Francine Rezzoug
- University of Louisville, Division of Medical Oncology/Hematology, Department of Medicine, James Graham Brown Cancer Center, Louisville, Kentucky, USA
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14
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Ugrinova I, Petrova M, Chalabi-Dchar M, Bouvet P. Multifaceted Nucleolin Protein and Its Molecular Partners in Oncogenesis. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2017; 111:133-164. [PMID: 29459030 DOI: 10.1016/bs.apcsb.2017.08.001] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Discovered in 1973, nucleolin is one of the most abundant phosphoproteins of the nucleolus. The ability of nucleolin to be involved in many cellular processes is probably related to its structural organization and its capability to form many different interactions with other proteins. Many functions of nucleolin affect cellular processes involved in oncogenesis-for instance: in ribosome biogenesis; in DNA repair, remodeling, and genome stability; in cell division and cell survival; in chemokine and growth factor signaling pathways; in angiogenesis and lymphangiogenesis; in epithelial-mesenchymal transition; and in stemness. In this review, we will describe the different functions of nucleolin in oncogenesis through its interaction with other proteins.
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Affiliation(s)
- Iva Ugrinova
- "Roumen Tsanev" Institute of Molecular Biology, Bulgarian Academy of Sciences, Sofia, Bulgaria.
| | - Maria Petrova
- "Roumen Tsanev" Institute of Molecular Biology, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Mounira Chalabi-Dchar
- Université de Lyon, Centre de Recherche en Cancérologie de Lyon, Centre Léon Bérard, Lyon, France
| | - Philippe Bouvet
- Université de Lyon, Ecole Normale Supérieure de Lyon, Lyon, France
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