Exploring the contribution of alternative food networks to food security. A comparative analysis

[EN] Food (in)security has become a challenge not only for developing economies but also for High Income Countries. In parallel, food scholars have actively investigated the contribution of alternative food networks (AFNs) to the development of more sustainable and just food systems, paying attention to drivers, initiatives and policies supporting the development of alternatives to the dominant industrialised food system and its detrimental environmental and socio-economic impacts. However, few studies have directly addressed the contribution of AFNs to food security in the Global North. This paper aims to establish new linkages between food security debates and critical AFNs literature. For that purpose, we conduct a place-based approach to food security in a comparative analysis of initiatives of three different European contexts: Cardiff city-region (UK), the Flemish Region (Belgium) and the peri-urban area of the city of Valencia (Spain). The results unfold: i) how AFNs weave a more localised socio-economic fabric that creates new relationships between food security outcomes and specific territories, ii) hybridization processes within alternative but also conventional systems and iii) the role of advocacy and collective action at different levels. The analysis allows identification of key elements on which food security debates hinge and provides new insights to ground conceptual discussions on territorial and place-based food security approaches.This research is part of the project "Assessment of the impact of global drivers of change on Europe's food security" (TRANSMANGO), granted by the EU under 7th Framework Programme; theme KBBE.2013.2.5-01; Grant agreement no: 613532. Dr. Ana Moragues-Faus also acknowledges the funding of the European Commission and the Welsh Government that currently supports her Ser Cymru fellowship. 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Bovine lactoferrin induces cell cycle arrest and inhibits mTOR signaling in breast cancer cells

Lactoferrin (LF) is predominantly found in mammalian secretions with recognized anticancer potential, although the mechanisms involved in such activity are still unclear. Here, the stability, internalization, and cytotoxicity of bovine LF (bLF) and its variants were tested against a panel of breast cancer cells. bLF was found to be very stable under incubation with cells and also able to internalize them, although most of the protein remained in the culture medium. Furthermore, bLF (up to 30 μM) inhibited the growth of breast cancer cells (T-47D, MDA-MB-231, Hs578T, and MCF-7) in a higher extent than in the normal counterpart cell line (MCF-10-2A), thus suggesting its selectivity. Regarding its variants, only the iron-saturated protein showed a higher activity compared with the commercial bLF. bLF growth inhibitory activity was associated with the induction of cell cycle arrest, but not with apoptosis. Moreover, exposure to bLF increased the cells phospho-AMPKα levels and decreased both phospho threonine mammalian target of rapamycin (mTOR) and total mTOR levels, indicating a novel mechanism of action through its ability to induce nutrient/energy-related stress. This study disclosed important findings to better understand the mechanisms underlying the bLF effects on breast cancer cell lines, which could be valuable for novel advances in the cancer research field.We acknowledge the financial support from Erasmus Mundus External Cooperation window (Bridging the Gap), the Strategic Projects PEst-OE/EQB/LA0023/2013 and PEst-OE/AGR/UI4033/2014, as well as the Project RECI/BBB-EBI/0179/2012 (FCOMP-01-0124-FEDER-027462), all funded by Fundacao para a Ciencia e a Tecnologia