Current genetic engineering strategies for the production of
anti-hypertensive ACEI peptides
Abstract
Hypertension is a major risk factor for cardiovascular diseases, with
high prevalence in low- and high-income countries. Among the various
antihypertensive therapeutic strategies, synthetic Angiotensin
I-converting enzyme inhibitors (ACEI) are one of the most used
pharmacological agents. However, their use in hypertension therapy has
been linked to various side effects. In recent years considerable
research has been performed on the use of food-derived ACEI peptides
(ACEIp) as antihypertensive agents. Although promising, the industrial
production of these ACEIp through conventional methods, such as chemical
synthesis and enzymatic hydrolysis of food proteins, has been proven
troublesome and expensive. Limitations to the large-scale production of
ACEIp for functional foods and supplements can be overcome by producing
the precursors of these peptides in heterologous hosts. Bacterial hosts
have been the privileged choice, particularly to test the success of the
genetic engineering strategies, but new platforms based on plants and
microalgae have also been emerging. This work provides an overview of
the state of antihypertensive therapy, focusing on ACEI, illustrates the
latest advances on ACEIp research, and describes current genetic
engineer-based approaches for the heterologous production of ACEIp for
antihypertensive therapy.