Adrenoceptor modulators and cancer progression

The place of beta-adrenergic receptor blockers in the treatment of arterial hypertension: From bench-to-bedside

Arterial hypertension is a multifaceted condition influenced by numerous pathophysiological factors. The key contributors to its pathogenesis encompass an unhealthy lifestyle, dysregulation of the sympathetic nervous system, alterations in the activity of adrenergic receptors, disruptions in sodium metabolism, structural and functional abnormalities in the vascular bed, as well as endothelial dysfunction, low-grade inflammation, oxidative stress etc. Despite extensive research into the mechanisms of arterial hypertension development over the centuries, its pathogenesis remains incompletely understood, and the selection of an effective treatment strategy continues to pose a significant challenge. Arterial hypertension is characterized by a diminished sensitivity of the β-adrenergic system, leading to the utilization of β-adrenergic blockers and other antihypertensive drugs in its treatment. This review delves into the mechanisms of action of beta-adrenergic receptor blockers in the treatment of hypertension and their respective effects.

The Role of β-Blockers in Melanoma

Melanoma is one of the most aggressive and less chemotherapy-responsive human cancers, representing a major public health issue worldwide. The early diagnosis still represents the best approach in order to reduce mortality, especially in advanced stages. Preclinical evidence, collected through several in vitro and in vivo models, has been accumulating about the pathophysiological involvement of β-adrenoceptors in melanoma progression. This involvement has been paralleled by the evidence that drugs blocking β-adrenoceptors (β-blockers) may have a relevant role in the treatment of melanoma and in the prevention of its progression. β-blockers are a class of drugs extensively used in clinical practice, not limited to cardiovascular therapeutics. Evidence collected through retrospective and prospective observational studies suggests that treatment with β-blockers, mainly propranolol, is able to delay melanoma progression. Although conclusive evidence is still lacking, current knowledge proposes β-blockers as an opportunity for antitumor treatment in melanoma. Clinical trials are needed in order to prove their claimed efficacy. Graphical Abstract.