Research Group
Catalucci Group
Signal Transduction in Cardiac Pathologies Lab
Our lab aims to dissect the molecular mechanisms underlying cardiac diseases to increase our knowledge on the organ functioning and to develop innovative and more effective approaches to treat the failing heart, such as nanodelivery of biologicals and personalized medicine.
The challenge
Many cardiac diseases lead to heart failure, a chronic condition that is the clinical endpoint of many cardiovascular disorders and one of the main causes of disability worldwide. We know that calcium plays a key role in cardiac contractility and thus in regulating the pumping function of the heart, while emerging evidence reveals that post-transcriptional mechanisms, including RNA editing processes, also critically influence cardiac pathophysiology. These molecular mechanisms, from calcium dysregulation to epigenetic modifications that alter protein function and gene expression patterns, represent interconnected pathways that contribute to diseased heart function. A deeper understanding of how these cellular processes interact and become disrupted in cardiac diseases will enable the development of innovative therapeutic strategies that leverage precision-medicine approaches and tailored drug delivery systems to target multiple aspects of cardiac dysfunction simultaneously.
Main research areas
Heart muscle contraction and calcium management
Understanding the cross-talk between stressed cardiac and immunological cells has recently gained significant attention in cardiovascular research. Over recent years, we have advanced our understanding of the subcellular regulation of the L-Type Calcium Channel (LTCC) complex, which serves as a key triggering factor in the Calcium Induced Calcium Release mechanism within cardiac cells. Our studies have investigated altered intracellular LTCC trafficking in various acquired and genetically based cardiac diseases, alongside the development of potential therapeutic interventions. Through this research, we aim to identify novel targets for therapeutic intervention in calcium-related cardiac dysfunction.
RNA therapeutics and editing in cardiac pathophysiology
Post-transcriptional regulation through RNA editing represents an emerging frontier in cardiovascular research, with particular focus on the A-to-I RNA editing mechanism in heart failure. This epigenetic process involves the conversion of adenosine to inosine in RNA molecules, potentially altering protein function and gene expression patterns in diseased cardiac tissue. Our research aims to identify specific RNA editing events that characterize pathological changes in heart failure and investigate innovative therapeutic strategies to modulate these editing patterns. By understanding how dysregulated RNA editing contributes to cardiac dysfunction, we explore the potential for targeted interventions that could restore normal post-transcriptional processing, offering novel therapeutic avenues for treating heart failure and other cardiovascular diseases.