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Molecular mechanisms underlying COPD-muscle dysfunction unveiled through a systems medicine approach.


ABSTRACT: MOTIVATION:Skeletal muscle dysfunction is a systemic effect in one-third of patients with chronic obstructive pulmonary disease (COPD), characterized by high reactive-oxygen-species (ROS) production and abnormal endurance training-induced adaptive changes. However, the role of ROS in COPD remains unclear, not least because of the lack of appropriate tools to study multifactorial diseases. RESULTS:We describe a discrete model-driven method combining mechanistic and probabilistic approaches to decipher the role of ROS on the activity state of skeletal muscle regulatory network, assessed before and after an 8-week endurance training program in COPD patients and healthy subjects. In COPD, our computational analysis indicates abnormal training-induced regulatory responses leading to defective tissue remodeling and abnormal energy metabolism. Moreover, we identified tnf, insr, inha and myc as key regulators of abnormal training-induced adaptations in COPD. The tnf-insr pair was identified as a promising target for therapeutic interventions. Our work sheds new light on skeletal muscle dysfunction in COPD, opening new avenues for cost-effective therapies. It overcomes limitations of previous computational approaches showing high potential for the study of other multi-factorial diseases such as diabetes or cancer. CONTACT:jroca@clinic.ub.es or martacascante@ub.eduSupplementary information: Supplementary data are available at Bioinformatics online.

SUBMITTER: Marin de Mas I 

PROVIDER: S-EPMC6544513 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature

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Molecular mechanisms underlying COPD-muscle dysfunction unveiled through a systems medicine approach.

Marín de Mas Igor I   Fanchon Eric E   Papp Balázs B   Kalko Susana S   Roca Josep J   Cascante Marta M  

Bioinformatics (Oxford, England) 20161006 1


<h4>Motivation</h4>Skeletal muscle dysfunction is a systemic effect in one-third of patients with chronic obstructive pulmonary disease (COPD), characterized by high reactive-oxygen-species (ROS) production and abnormal endurance training-induced adaptive changes. However, the role of ROS in COPD remains unclear, not least because of the lack of appropriate tools to study multifactorial diseases.<h4>Results</h4>We describe a discrete model-driven method combining mechanistic and probabilistic ap  ...[more]

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