Interleukin-27-adipose-derived mesenchymal stromal cell-based gene therapy attenuates inflammation in lipopolysaccharide-induced acute respiratory distress syndrome.

Early human evidence such as case series or small samples is exploring possible benefits.

• Level A · Stronger Clinical Evidence
• Level B · Emerging clinical evidence with positive signals
• Level C · Early human research exploring benefits
• Level D · Scientific groundwork from lab and animal studies
• Emerging · Emerging topic under active research

Abstract (original English)

Background Acute respiratory distress syndrome (ARDS) is a lung inflammatory condition associated with the accumulation of fluid edema and cell infiltrates into the alveolar space along with dysregulation of the immune response. Current therapeutics are limited to palliative care, i.e., mechanical ventilators, thus highlighting the need to develop targeted therapeutic for ARDS. Interleukin-27 (IL-27) is a multifunctional cytokine with the capability for immune modulation. Our interest lies in exploring the properties of IL-27, particularly as an anti-inflammatory cytokine that functions as an antagonist of IL-6 signaling, as an inducer of anti-viral genes, as a promoter of tissue repair, and as a regulator of both the innate and adaptive immune responses, possessing promising potential as a therapeutic for ARDS. Methods To overcome the challenge of repeated administration due to the short half-life of cytokines, we utilized a cell-based gene therapy approach. An IL-27-expressing plasmid was transfected into adipose mesenchymal stromal cells (ASC) that serve as the gene therapy carriers. For in vitro studies, we treated mono- and co-culture lung lipopolysaccharide (LPS)-induced lung epithelial and monocytes/macrophages cell line with IL-27-expressing ASC (IL-27 ASC) conditioned media (CM) to determine the effects on pro-inflammatory gene expression. For in vivo studies, male C57

Evidence level

Early human evidence such as case series or small samples is exploring possible benefits.

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