Stem Cell Strategies for the Treatment of Chronic Asthma
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- STATUS
- Recruiting
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- End date
- Dec 31, 2023
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- participants needed
- 15
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- sponsor
- University Hospitals of North Midlands NHS Trust
Summary
The study is a pilot/laboratory study comparing the effects of MSC conditioned media on samples of airway cells in 3 participant groups with mild/moderate asthma (5 participants), severe asthma (5 participants), or no asthma (5 participants).
Description
Asthma is a significant global health challenge with the prevalence of allergic asthma increasing by 1% each year. Atopic asthma is a complex disorder driven by cellular mechanisms in response to allergens. The response is two-fold; a chronic inflammatory response accompanied by remodelling of the respiratory airways. Airway remodelling is characterised by smooth muscle hypertrophy (and mucous gland) and hyperplasia, fibrosis of the sub-epithelium and reticular basement thickening, and epithelial damage. Over time the airway suffers remodelling due to thickening of the smooth muscle component which is in turn accompanied by irreversible fibrotic changes and a tendency towards treatment unresponsiveness. The inflammatory response on the other hand is characterised by IgE activation of mucous mast cells, infiltration of eosinophils, increased CD4+Th2 lymphocytes, and Type 2 cytokine secretion (e.g. IL13). The primary challenge in the development of new asthma treatments is to deliver long-lasting relief to the inflammatory response and also to 'repair' the remodelling associated with repeated asthmatic events. Mesenchymal stem cells (MSC), derived primarily from the bone marrow, have a multipotent differentiation potential (primarily bone, fat, and cartilage) and are currently in clinical trial for over 350 diseases and disorders. These include diverse areas such as ischemic stroke, graft vs. host disease, Crohns disease, and type 1 diabetes alongside anticipated applications related to the musculoskeletal system. Their application into the treatment of musculoskeletal damage relies primarily on functional incorporation (differentiation into the damaged tissue to repair in situ). In contrast their application in many other instances is due to their unique inherent characteristic, namely their immunomodulatory role. MSC secrete a wide range of growth factors and cytokines (the secretome) which have the capacity to silence immune reactions preventing T cell activation. In addition to this property the MSC secretome has also been shown to reverse the remodelling associated with fibrotic disease.
Details
| Condition | bronchial asthma, asthmatic, Asthma (Pediatric), Allergies & Asthma, Asthma |
|---|---|
| Clinical Study Identifier | NCT04883320 |
| Sponsor | University Hospitals of North Midlands NHS Trust |
| Last Modified on | 21 May 2021 |
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