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Understanding the cytotoxicity of L-Phenylalanine-based non-nutritional sweeteners and how to prevent it: An interdisciplinary study on their supramolecular assembly and rationally designed inhibitors

Project description

The impact of artificial sweeteners on the gut microbiome

Artificial sweeteners such as aspartame were developed to reduce sugar consumption, but there are concerns about their safety. Recent evidence indicates that certain amino acid-based sweeteners might influence brain health, potentially through complex interactions with the gut microbiome and the gut-brain axis. With the support of the Marie Skłodowska-Curie Actions programme, the SWEETBARRELS project will investigate how artificial sweeteners can form supramolecular aggregates, which may contribute to cellular toxicity and neurodegeneration. Researchers will design novel molecules that inhibit harmful aggregation of sweeteners and reduce potential neurological risks. Project findings can lead to the development of safer artificial sweeteners.

Objective

Since the beginning of food industrialization, consumers have expected products that could bring balance to the delicate relationship between flavour and nutritional requirements. In the case of sugar and sweeteners, the necessity of a low-calories sweetener capable of providing an equivalent sweet flavour without the high caloric intake inherent to sugar-sweetened drinks stimulated the food industry to develop novel artificial molecules. Sadly, consumers who wanted to “keep tabs” on their weight have faced unexpected health-related controversy, first with Cyclamate and its carcinogenic potential, later with the ups and downs on Saccharin-associated risks, and nowadays with the on-going debate about Aspartame and related substances. Besides the proposed role of Aspartame in some neurodegenerative disorders, there are questions about the impact that this, and others amino acid-based sweeteners, may have in the gut microbiome. Since the gut microbiome can affect brain health throw the gut-brain axis, understanding self-assembly can give a clearer panorama about the role of Aspartame, and structurally related non-nutritional sweeteners as Neotame, and Advantame, on neurocognitive processes. The SWEETBARRELS project focuses on understanding the self-assembly process of these molecules, since supramolecular aggregates have been proposed as one the main causes of cytotoxicity for these substances. I will use this knowledge, and previously reports of assembly modulation of amyloid structures, to design a pioneering inhibition strategy based on the synthesis of new molecules rationally designed to interfere in the aggregation process, altering the formation of potentially cytotoxic supramolecular species.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-EF - HORIZON TMA MSCA Postdoctoral Fellowships - European Fellowships

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Call for proposal

(opens in new window) HORIZON-MSCA-2024-PF-01

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Coordinator

UNIVERSIDAD DE GRANADA
Net EU contribution
€ 209 914,56
Address
CUESTA DEL HOSPICIO SN
18071 Granada
Spain
Region
Sur Andalucía Granada
Activity type
Higher or Secondary Education Establishments
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Total cost
No data

Partners (1)