Bidirectional cross-regulation between ErbB2 and {beta}-adrenergic signalling pathways

Conclusion
Our studies show that myocardial ErbB2 and βAR signalling are linked in a feedback loop with βAR activation leading to increased ErbB2 expression and activity, and increased ErbB2 activity regulating β2AR expression. Most importantly, ErbB2 kinase activity is crucial for cardioprotection in the setting of β-adrenergic stress, suggesting that this mechanism is important in the pathophysiology and treatment of cardiomyopathy induced by ErbB2-targeting antineoplastic drugs.

Source: Cardiovascular Research - February 12, 2016 Category: Cardiology Authors: Sysa-Shah, P., Tocchetti, C. G., Gupta, M., Rainer, P. P., Shen, X., Kang, B.-H., Belmonte, F., Li, J., Xu, Y., Guo, X., Bedja, D., Gao, W. D., Paolocci, N., Rath, R., Sawyer, D. B., Naga Prasad, S. V., Gabrielson, K. Tags: Cardiac biology and remodelling Source Type: research