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Xu X, Wang Y, Luo X, Gao X, Gu W, Ma Y, Xu L, Yu M, Liu X, Liu J, Wang X, Zheng T, Mao C, Dong L. A non-invasive strategy for suppressing asthmatic airway inflammation and remodeling: Inhalation of nebulized hypoxic hUCMSC-derived extracellular vesicles. Front Immunol 2023; 14:1150971. [PMID: 37090722 PMCID: PMC10113478 DOI: 10.3389/fimmu.2023.1150971] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 03/23/2023] [Indexed: 04/08/2023] Open
Abstract
Mesenchymal stromal cell-derived extracellular vesicles (MSC-EVs) are extremely promising nanoscale cell-free therapeutic agents. We previously identified that intravenous administration (IV) of human umbilical cord MSC-EVs (hUCMSC-EVs), especially hypoxic hUCMSC-EVs (Hypo-EVs), could suppress allergic airway inflammation and remodeling. Here, we further investigated the therapeutic effects of Hypo-EVs administration by atomizing inhalation (INH), which is a non-invasive and efficient drug delivery method for lung diseases. We found that nebulized Hypo-EVs produced by the atomization system (medical/household air compressor and nebulizer) maintained excellent structural integrity. Nebulized Dir-labeled Hypo-EVs inhaled by mice were mainly restricted to lungs. INH administration of Hypo-EVs significantly reduced the airway inflammatory infiltration, decreased the levels of IL-4, IL-5 and IL-13 in bronchoalveolar lavage fluid (BALF), declined the content of OVA-specific IgE in serum, attenuated the goblet cell metaplasia, and the expressions of subepithelial collagen-1 and α-smooth muscle actin (α-SMA). Notably, Hypo-EV INH administration was generally more potent than Hypo-EV IV in suppressing IL-13 levels and collagen-1 and α-SMA expressions. RNA sequencing revealed that various biological processes, such as cell adhesion, innate immune response, B cell activation, and extracellular space, were associated with the activity of Hypo-EV INH against asthma mice. In addition, Hypo-EVs could load exogenous miR-146a-5p (miR-146a-5p-EVs). Furthermore, INH administration of miR-146a-5p-EVs resulted in a significantly increased expression of miR-146a-5p mostly in lungs, and offered greater protection against the OVA-induced increase in airway inflammation, subepithelial collagen accumulation and myofibroblast compared with nebulized Hypo-EVs. Overall, nebulized Hypo-EVs effectively attenuated allergic airway inflammation and remodeling, potentially creating a non-invasive route for the use of MSC-EVs in asthma treatment.
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Affiliation(s)
- Xiaowei Xu
- Department of Nuclear Medicine, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Ying Wang
- Department of Respiratory Diseases, The Affiliated Huai’an Hospital of Xuzhou Medical University, Huai’an, Jiangsu, China
| | - Xinkai Luo
- Department of Nuclear Medicine, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Xuerong Gao
- Department of Nuclear Medicine, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Weifeng Gu
- Department of Nuclear Medicine, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Yongbin Ma
- Department of Central Laboratory, Jintan Hospital of Jiangsu University, Changzhou, Jiangsu, China
| | - Lili Xu
- Department of Respiratory Diseases, The Affiliated People’s Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Mengzhu Yu
- Department of Paidology, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Xi Liu
- Department of Central Laboratory, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Jiameng Liu
- Department of Nuclear Medicine, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Xuefeng Wang
- Department of Nuclear Medicine, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
- Department of Central Laboratory, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Tingting Zheng
- Department of Nuclear Medicine, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
- *Correspondence: Liyang Dong, ; Tingting Zheng, ; Chaoming Mao,
| | - Chaoming Mao
- Department of Nuclear Medicine, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
- *Correspondence: Liyang Dong, ; Tingting Zheng, ; Chaoming Mao,
| | - Liyang Dong
- Department of Nuclear Medicine, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
- *Correspondence: Liyang Dong, ; Tingting Zheng, ; Chaoming Mao,
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MacFarlane PM, Mayer CA, Caplan AI, Raffay TM, Mayer AJ, Bonfield TL. Human bone marrow-derived mesenchymal stem cells rescue neonatal CPAP-induced airway hyperreactivity. Respir Physiol Neurobiol 2022; 302:103913. [PMID: 35436602 PMCID: PMC9936817 DOI: 10.1016/j.resp.2022.103913] [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: 02/28/2022] [Accepted: 04/13/2022] [Indexed: 11/15/2022]
Abstract
Continuous positive airway pressure (CPAP) is a primary non-invasive mode of respiratory support for preterm infants. However, emerging evidence suggests CPAP could be an underlying contributor to the unintended pathophysiology of wheezing and associated airway hyperreactivity (AHR) in former preterm infants. The therapeutic benefits of mesenchymal stem cells (MSCs) have been demonstrated in a variety of animal models and several clinical trials are currently underway to assess their safety profiles in the setting of prematurity and bronchopulmonary dysplasia (BPD). In the present study, using a mouse model of neonatal CPAP, we investigated whether conditioned medium harvested from cultures of human bone-marrow derived mesenchymal stem cells (hMSC) could rescue the CPAP-induced AHR, based upon previous observations of their anti-AHR properties. Newborn mice (male and female) were fitted with a custom-made mask for delivery of daily CPAP 3 h/day for the first 7 postnatal days. At postnatal day 21 (two weeks after CPAP ended), lungs were removed, precision-cut lung slices were sectioned and incubated for 48 h in vitro in conditioned medium collected from cultures of three different hMSC donors. As expected, CPAP resulted in AHR to methacholine compared to untreated control mice. hMSC conditioned medium from the cultures of all three donors completely reversed AHR. These data reveal potential therapeutic benefits of hMSC therapy, which may be capable of rescuing the long-term adverse effects of neonatal CPAP on human airway function.
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Affiliation(s)
- PM MacFarlane
- Department of Pediatrics, Rainbow Babies & Children’s Hospital, Case Western Reserve University, Cleveland, OH 44106, USA, Correspondence to: Department of Pediatrics, Case Western Reserve University, Rainbow Babies & Children’s Hospital, 11100 Euclid Ave, Cleveland, OH 44106-6010, USA. (P. MacFarlane)
| | - CA Mayer
- Department of Pediatrics, Rainbow Babies & Children’s Hospital, Case Western Reserve University, Cleveland, OH 44106, USA
| | - AI Caplan
- Skeletal Research Center, Department of Biology, Case Western Reserve University, Cleveland, OH 44106, USA
| | - TM Raffay
- Department of Pediatrics, Rainbow Babies & Children’s Hospital, Case Western Reserve University, Cleveland, OH 44106, USA
| | - AJ Mayer
- Department of Pediatrics, Rainbow Babies & Children’s Hospital, Case Western Reserve University, Cleveland, OH 44106, USA
| | - TL Bonfield
- Department of Genetics and Genome Sciences, Department of Pediatrics and National Center of Regenerative Medicine, Case Western Reserve University, Cleveland, OH 44106, USA
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