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Wang L, Xiao J, Zhang B, Hou A. Epigenetic modifications in the development of bronchopulmonary dysplasia: a review. Pediatr Res 2024:10.1038/s41390-024-03167-7. [PMID: 38570557 DOI: 10.1038/s41390-024-03167-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 02/25/2024] [Accepted: 03/07/2024] [Indexed: 04/05/2024]
Abstract
While perinatal medicine advancements have bolstered survival outcomes for premature infants, bronchopulmonary dysplasia (BPD) continues to threaten their long-term health. Gene-environment interactions, mediated by epigenetic modifications such as DNA methylation, histone modification, and non-coding RNA regulation, take center stage in BPD pathogenesis. Recent discoveries link methylation variations across biological pathways with BPD. Also, the potential reversibility of histone modifications fuels new treatment avenues. The review also highlights the promise of utilizing mesenchymal stem cells and their exosomes as BPD therapies, given their ability to modulate non-coding RNA, opening novel research and intervention possibilities. IMPACT: The complexity and universality of epigenetic modifications in the occurrence and development of bronchopulmonary dysplasia were thoroughly discussed. Both molecular and cellular mechanisms contribute to the diverse nature of epigenetic changes, suggesting the need for deeper biochemical techniques to explore these molecular alterations. The utilization of innovative cell-specific drug delivery methods like exosomes and extracellular vesicles holds promise in achieving precise epigenetic regulation.
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Affiliation(s)
- Lichuan Wang
- Department of Pediatrics, Sheng Jing Hospital of China Medical University, Shenyang, China
| | - Jun Xiao
- Department of Pediatrics, Sheng Jing Hospital of China Medical University, Shenyang, China
| | - Bohan Zhang
- Department of Pediatrics, Sheng Jing Hospital of China Medical University, Shenyang, China
| | - Ana Hou
- Department of Pediatrics, Sheng Jing Hospital of China Medical University, Shenyang, China.
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Zhang S, Chen M, Guo X, Wang J, Tang X, Luo Q, Chen X, Zhong J, Huang J, Chen Y, Lin X, Zhao C, Zheng D, Su S, Xu C, Liu C, Lin C, Yuan Q. Monocyte-derived exosomal XIST exacerbates acute lung injury by regulating the miR-448-5p/HMGB2 axis. Int Immunopharmacol 2023; 122:110415. [PMID: 37402340 DOI: 10.1016/j.intimp.2023.110415] [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] [Revised: 05/17/2023] [Accepted: 05/30/2023] [Indexed: 07/06/2023]
Abstract
Monocyte-derived exosomes (Exos) have been implicated in inflammation-related autoimmune/inflammatory diseases via transferring bioactive cargoes to recipient cells. The purpose of this study was to investigate the possible effect of monocyte-derived Exos on the initiation and the development of acute lung injury (ALI) by delivering long non-coding RNA XIST. Key factors and regulatory mechanisms in ALI were predicted by bioinformatics methods. BALB/c mice were treated with lipopolysaccharide (LPS) to establish an ALI in vivo model and then injected with Exos isolated from monocytes transduced with sh-XIST to evaluate the effect of monocyte-derived exosomal XIST on ALI. HBE1 cells were co-cultured with Exos isolated from monocytes transduced with sh-XIST for further exploration of its effect. Luciferase reporter, RIP and RNA pull-down assays were performed to verify the interaction between miR-448-5p and XIST, miR-448-5p and HMGB2. miR-448-5p was significantly poorly expressed while XIST and HMGB2 were highly expressed in the LPS-induced mouse model of ALI. Monocyte-derived Exos transferred XIST into HBE1 cells where XIST competitively inhibited miR-448-5p and reduced the binding of miR-448-5p to HMGB2, thus upregulating the expression of HMGB2. Furthermore, in vivo data revealed that XIST delivered by monocyte-derived Exos downregulated miR-448-5p expression and up-regulated HMGB2 expression, ultimately contributing to ALI in mice. Overall, our results indicate that XIST delivered by monocyte-derived Exos aggravates ALI via regulating the miR-448-5p/HMGB2 signaling axis.
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Affiliation(s)
- Shuyao Zhang
- Department of Pharmacy, Guangzhou Red Cross Hospital, Jinan University, Guangzhou 510220, PR China; Department of Pharmacology, Shantou University Medical College, Shantou 515041, PR China
| | - Meini Chen
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, PR China
| | - Xinmin Guo
- China Department of Ultrasound, Guangzhou Red Cross Hospital, Jinan University, Guangzhou 510220, PR China
| | - Jing Wang
- Department of Pharmacy, Guangzhou Red Cross Hospital, Jinan University, Guangzhou 510220, PR China
| | - Xu Tang
- Department of Pharmacy, Guangzhou Red Cross Hospital, Jinan University, Guangzhou 510220, PR China
| | - Qianhua Luo
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, PR China
| | - Xiaoshan Chen
- Department of Pharmacy, Guangzhou Red Cross Hospital, Jinan University, Guangzhou 510220, PR China
| | - Jialin Zhong
- Department of Pharmacy, Guangzhou Red Cross Hospital, Jinan University, Guangzhou 510220, PR China
| | - Jianxiang Huang
- College of Pharmacy, Jinan University, Guangzhou 510220, PR China
| | - Yun Chen
- Department of Pharmacy, Guangzhou Red Cross Hospital, Jinan University, Guangzhou 510220, PR China
| | - Xinyue Lin
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, PR China
| | - Chengkuan Zhao
- Department of Pharmacy, Guangzhou Red Cross Hospital, Jinan University, Guangzhou 510220, PR China
| | - Danling Zheng
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, PR China
| | - Siman Su
- Department of Pharmacology, Shantou University Medical College, Shantou 515041, PR China
| | - Chengcheng Xu
- Department of Pharmacy, Guangzhou Red Cross Hospital, Jinan University, Guangzhou 510220, PR China
| | - Chong Liu
- Department of Pharmacy, Guangzhou Red Cross Hospital, Jinan University, Guangzhou 510220, PR China
| | - Chaoxian Lin
- Department of Pharmacy, Shantou Chaonan Minsheng Hospital, Shantou 515041, PR China
| | - Quanming Yuan
- The Second Clinical College, Dalian Medical University, Dalian 116000, PR China.
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Zhong XQ, Wang D, Chen S, Zheng J, Hao TF, Li XH, Luo LH, Gu J, Lian CY, Li XS, Chen DJ. Umbilical cord blood-derived exosomes from healthy term pregnancies protect against hyperoxia-induced lung injury in mice. Clin Transl Sci 2023. [PMID: 36869608 DOI: 10.1111/cts.13502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 01/08/2023] [Accepted: 02/15/2023] [Indexed: 03/05/2023] Open
Abstract
Bronchopulmonary dysplasia (BPD) is a chronic, devastating disease primarily occurring in premature infants. To date, intervention strategies to prevent or treat BPD are limited. We aimed to determine the effects of umbilical cord blood-derived exosomes (UCB-EXOs) from healthy term pregnancies on hyperoxia-induced lung injury and to identify potential targets for BPD intervention. A mouse model of hyperoxia-induced lung injury was created by exposing neonatal mice to hyperoxia after birth until the 14th day post birth. Age-matched neonatal mice were exposed to normoxia as the control. Hyperoxia-induced lung injury mice were intraperitoneally injected with UCB-EXO or vehicle daily for 3 days, starting on day 4 post birth. Human umbilical vein endothelial cells (HUVECs) were insulted with hyperoxia to establish an in vitro model of BPD to investigate angiogenesis dysfunction. Our results showed that UCB-EXO alleviated lung injuries in hyperoxia-insulted mice by reducing histopathological grade and collagen contents in the lung tissues. UCB-EXO also promoted vascular growth and increased miR-185-5p levels in the lungs of hyperoxia-insulted mice. Additionally, we found that UCB-EXO elevated miR-185-5p levels in HUVECs. MiR-185-5p overexpression inhibited cell apoptosis, whereas promoted cell migration in HUVECs exposed to hyperoxia. The luciferase reporter assay results revealed that miR-185-5p directly targeted cyclin-dependent kinase 6 (CDK6), which was downregulated in the lungs of hyperoxia-insulted mice. Together, these data suggest that UCB-EXO from healthy term pregnancies protect against hyperoxia-induced lung injuries via promoting neonatal pulmonary angiogenesis partially by elevating miR-185-5p.
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Affiliation(s)
- Xin-Qi Zhong
- Department of Neonatology, the Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,Key Laboratory for Major Obstetric Disease of Guangdong Province, Guangzhou, China
| | - Ding Wang
- Key Laboratory for Major Obstetric Disease of Guangdong Province, Guangzhou, China.,Department of Obstetrics and Gynecology, Key Laboratory for Major Obstetric Diseases of Guangdong Province, the Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Shuang Chen
- Center for Translational Medicine, Institute of Precision Medicine, Department of Medical Oncology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jing Zheng
- Department of Obstetrics and Gynecology, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Tao-Fang Hao
- Department of Biochemistry and Molecular Biology, Sun Yat-Sen University Zhongshan School of Medicine, Guangzhou, China
| | - Xiu-Hong Li
- Department of Maternal and Child Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Li-Hua Luo
- Department of Neonatology, the Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Jian Gu
- Department of Neonatology, the Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Chang-Yu Lian
- Department of Neonatology, the Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xiao-Sa Li
- Key Laboratory of Cardiovascular Diseases, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, China
| | - Dun-Jin Chen
- Key Laboratory for Major Obstetric Disease of Guangdong Province, Guangzhou, China.,Department of Obstetrics and Gynecology, the Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
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The lncRNAs at X Chromosome Inactivation Center: Not Just a Matter of Sex Dosage Compensation. Int J Mol Sci 2022; 23:ijms23020611. [PMID: 35054794 PMCID: PMC8775829 DOI: 10.3390/ijms23020611] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/30/2021] [Accepted: 01/05/2022] [Indexed: 02/06/2023] Open
Abstract
Non-coding RNAs (ncRNAs) constitute the majority of the transcriptome, as the result of pervasive transcription of the mammalian genome. Different RNA species, such as lncRNAs, miRNAs, circRNA, mRNAs, engage in regulatory networks based on their reciprocal interactions, often in a competitive manner, in a way denominated “competing endogenous RNA (ceRNA) networks” (“ceRNET”): miRNAs and other ncRNAs modulate each other, since miRNAs can regulate the expression of lncRNAs, which in turn regulate miRNAs, titrating their availability and thus competing with the binding to other RNA targets. The unbalancing of any network component can derail the entire regulatory circuit acting as a driving force for human diseases, thus assigning “new” functions to “old” molecules. This is the case of XIST, the lncRNA characterized in the early 1990s and well known as the essential molecule for X chromosome inactivation in mammalian females, thus preventing an imbalance of X-linked gene expression between females and males. Currently, literature concerning XIST biology is becoming dominated by miRNA associations and they are also gaining prominence for other lncRNAs produced by the X-inactivation center. This review discusses the available literature to explore possible novel functions related to ceRNA activity of lncRNAs produced by the X-inactivation center, beyond their role in dosage compensation, with prospective implications for emerging gender-biased functions and pathological mechanisms.
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