Modeling COPD in Drosophila melanogaster by cigarette smoke inhalation: functional changes and alterations in the expression of COPD-relevant orthologous genes
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View abstract on PubMed
Summary
This summary is machine-generated.Fruit flies exposed to cigarette smoke (CS) showed physiological changes and altered gene expression linked to chronic obstructive pulmonary disease (COPD). These responses were more pronounced in females, highlighting a potential model for COPD research and drug development.
Area Of Science
- Environmental Toxicology
- Genomics
- Physiology
Background
- Chronic obstructive pulmonary disease (COPD) is a major global health concern, primarily caused by long-term exposure to irritants like smoking and air pollution.
- Previous in silico studies identified conserved genes related to COPD between humans and *Drosophila melanogaster* (fruit flies).
Purpose Of The Study
- To experimentally investigate the physiological and transcriptomic effects of cigarette smoke (CS) inhalation in *Drosophila melanogaster*.
- To assess the utility of *D. melanogaster* as a model organism for studying COPD pathogenesis and potential therapeutic interventions.
Main Methods
- Adult fruit flies were exposed to CS via inhalation for 20 minutes daily over five consecutive days.
- Physiological parameters including metabolic rate, locomotor activity, body mass, and total body length were measured.
- Transcriptomic analysis was performed to identify differentially expressed genes associated with COPD.
Main Results
- CS inhalation significantly increased metabolic rate and decreased locomotor activity, body weight, and total body length in exposed flies.
- Transcriptomic alterations were more pronounced in female flies, indicating sex-specific responses to CS exposure.
- Functional enrichment analysis in females revealed involvement of ABC transporters, microRNA-313, and pathways related to development, DNA repair, and cell differentiation.
Conclusions
- *Drosophila melanogaster* is a viable model organism for studying CS-induced physiological and molecular changes relevant to COPD.
- The study identified sex-specific transcriptomic responses to CS, with females showing significant alterations in detoxification and developmental pathways.
- This model system holds promise for evaluating the efficacy of novel therapeutic agents for COPD treatment.
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