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1.
Food Funct ; 15(6): 2789-2798, 2024 Mar 18.
Artigo em Inglês | MEDLINE | ID: mdl-38441670

RESUMO

Many edible insect species are attracting the attention of the food industry and consumers in Western societies due to their high content and quality of protein, and consequently, the potential to be used as a more environmentally friendly dietary source could be beneficial for humans. On the other hand, prevention of inflammatory diseases using nutritional interventions is currently being proposed as a sustainable and cost-effective strategy to improve people's health. In this regard, finding bioactive compounds such as peptides with anti-inflammatory properties from sustainable sources (e.g., edible insects) is one area of particular interest, which might have a relevant role in immunonutrition. This review aims to summarize the recent literature on the discovery of immunomodulatory peptides through in vitro studies from edible insects, as well as to describe cell-based assays aiming to prove their bioactivity. On top of that, in vivo studies (i.e., animal and human), although scarce, have been mentioned in relation to the topic. In addition, the challenges and future perspectives related to edible-insect peptides and their role in immunonutrition are discussed. The amount of literature aiming to demonstrate the potential immunomodulatory activity of edible-insect peptides is scarce but promising. Different approaches have been employed, especially cell assays and animal studies employing insect meal as supplementation in the diet. Insects such as Tenebrio molitor or Gryllodes sigillatus are some of the most studied and have demonstrated to contain bioactive peptides. Further investigations, mostly with humans, are needed in order to clearly state that peptides from edible insects may contribute to the modulation of the immune system.


Assuntos
Insetos Comestíveis , Animais , Humanos , Dieta de Imunonutrição , Insetos , Dieta , Peptídeos
2.
J Agric Food Chem ; 72(6): 3189-3199, 2024 Feb 14.
Artigo em Inglês | MEDLINE | ID: mdl-38305180

RESUMO

The incorporation of novel, functional, and sustainable foods in human diets is increasing because of their beneficial effects and environmental-friendly nature. Chia (Salvia hispanica L.) has proved to be a suitable source of bioactive peptides via enzymatic hydrolysis. These peptides could be responsible for modulating several physiological processes if able to reach the target organ. The bioavailable peptides contained in a hydrolysate obtained with Alcalase, as functional foods, were identified using a transwell system with Caco-2 cell culture as the absorption model. Furthermore, 20 unique peptides with a molecular weight lower than 1000 Da and the higher statistical significance of the peptide-precursor spectrum match (-10 log P) were assessed by in silico tools to suggest which peptides could be those exerting the demonstrated bioactivity. From the characterized peptides, considering the molecular features and the results obtained, the peptides AGDAHWTY, VDAHPIKAM, PNYHPNPR, and ALPPGAVHW are anticipated to be contributing to the antioxidant and/or ACE inhibitor activity of the chia protein hydrolysates.


Assuntos
Antioxidantes , Hidrolisados de Proteína , Humanos , Hidrolisados de Proteína/química , Antioxidantes/farmacologia , Antioxidantes/química , Células CACO-2 , Inibidores da Enzima Conversora de Angiotensina/química , Peptídeos/química , Hidrólise
3.
Food Res Int ; 176: 113712, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38163680

RESUMO

Promoting dietary patterns in which the content of vegetables is higher than the current consumption of them is one of the strategies to achieve a sustainable food system while promoting health in humans. Hemp (Cannabis sativa L.) protein contains bioactive peptides that can be released via enzymatic hydrolysis. These peptides must reach the target organ in order to potentially exert bioactivity and regulate specific metabolic pathways. The peptides contained in two bioavailable hempseed protein hydrolysates (bioHPHs) showing anti-inflammatory activity were identified using a transwell system employing CACO-2 cell culture as absorption model and subjected to in silico analysis to select 10 unique peptides. These sequences were chemically synthetized to verify their activity in primary human monocytes (assessing gene expression of IL-1ß, IL-6, TNF-α, IL-4, IL-10, and TLR4), in addition to evaluate the interaction with TRL4/MD2 by molecular docking. Six peptides (DDNPRRF, SRRFHLA, RNIFKGF, VREPVFSF, QADIFNPR and SAERGFLY) showed high immunomodulatory activity in in vitro and the mechanisms of interaction with TLR4/MD2 were described. Bioavailable anti-inflammatory hempseed-derived peptides were identified, and their activity verified, suggesting the health benefits that the ingestion of HPHs could exert in humans. These findings open new opportunities for developing nutritional strategies with hemp as a dietary source of biopeptides to prevent the development and progression of inflammatory-related diseases.


Assuntos
Cannabis , Hidrolisados de Proteína , Humanos , Hidrolisados de Proteína/química , Simulação de Acoplamento Molecular , Células CACO-2 , Receptor 4 Toll-Like , Peptídeos/química , Oligopeptídeos , Cannabis/química , Anti-Inflamatórios/farmacologia
4.
Food Res Int ; 174(Pt 1): 113616, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-37986471

RESUMO

Hemp seeds have attracted the interest of the food industry recently, to be employed as functional food, considering their nutritional composition, highlighting the high content and quality of the proteins. In this study, ten hemp protein hydrolysates (HPHs) were obtained by enzymatic hydrolysis with two food-grade proteases from a hemp protein isolate and the inflammatory properties were evaluated in Caco-2 cell line. To this end, the gene expression and the release of proinflammatory and anti-inflammatory cytokines by Caco-2 cells stimulated with bacterial lipopolysaccharide and treated with HPHs at concentrations of 50 and 100 µg/mL were analyzed. The peptides contained in each HPH were identified and those with higher quality of the match in the spectrum were subjected to in silico analyses to determine which peptides were bioactive and contributing to the immunomodulatory activity of the hydrolysates. The results suggest that the immunomodulatory properties of these HPHs could have a beneficial effect at the level of the intestinal epithelium. The HPH20A and HPH60A + 15F exerted high immunomodulatory properties based on the cytokine levels release. The oligopeptides MAEKEGFEWVSF and GLHLPSYTNTPQLVYIVK were proposed as the most active ones. The potential of these peptides as nutraceuticals to prevent or pretreat intestinal inflammation is promising, though requires validation by in vivo assays.


Assuntos
Cannabis , Humanos , Cannabis/química , Células CACO-2 , Sementes/química , Peptídeos/química , Intestinos
5.
Nutrients ; 15(15)2023 Jul 31.
Artigo em Inglês | MEDLINE | ID: mdl-37571342

RESUMO

BACKGROUND: Sulforaphane (SFN) is an isothiocyanate of vegetable origin with potent antioxidant and immunomodulatory properties. The characterization of its pleiotropic activity in human dendritic cells (DCs) is poorly summarized. The aim of this work was to study the immunomodulatory power of SFN in response to an inflammatory microenvironment on human monocyte-derived DCs (moDCs). METHODS: We studied the immunological response induced by SFN. Apoptosis and autophagy assays were performed using flow cytometry on moDCs and a cancer cell line (THP-1). These included moDC maturation, lymphocyte proliferation and cytokine production under different experimental conditions. We investigated whether these results were associated with an inflammatory microenvironment induced by lipopolysaccharides (LPSs). RESULTS: Our results demonstrated that SFN could interact with moDCs, significantly reducing the autophagy process and enhancing apoptosis similarly to cancer cell line THP-1 cells in a chronic inflammatory microenvironment. Under chronic inflammation, SFN modulated the phenotypical characteristics of moDCs, reducing the expression of all markers (CD80, CD83, CD86, HLA-DR and PD-L1). SFN significantly reduced the Th2 proliferative response, with a decrease in the IL-9 and IL-13 levels. Although we did not observe any changes in the regulatory proliferative response, we noted an increase in the IL-10 levels. CONCLUSIONS: These findings demonstrate that SFN exerts protective effects against LPS-induced inflammation via the modulation of moDCs/T cells towards a regulatory profile. SFN may be a potential candidate for the treatment of pathologies with an inflammatory profile.


Assuntos
Citocinas , Isotiocianatos , Humanos , Citocinas/metabolismo , Isotiocianatos/farmacologia , Isotiocianatos/metabolismo , Inflamação/tratamento farmacológico , Inflamação/metabolismo , Células Dendríticas , Imunidade , Monócitos/metabolismo , Diferenciação Celular , Células Cultivadas
6.
Nutrients ; 15(12)2023 Jun 08.
Artigo em Inglês | MEDLINE | ID: mdl-37375585

RESUMO

The immune system is somehow related to all the metabolic pathways, in a bidirectional way, and the nutritional interventions affecting these pathways might have a relevant impact on the inflammatory status of the individuals. Food-derived peptides have been demonstrated to exert several bioactivities by in vitro or animal studies. Their potential to be used as functional food is promising, considering the simplicity of their production and the high value of the products obtained. However, the number of human studies performed until now to demonstrate effects in vivo is still scarce. Several factors must be taken into consideration to carry out a high-quality human study to demonstrate immunomodulatory-promoting properties of a test item. This review aims to summarize the recent human studies published in which the purpose was to demonstrate bioactivity of protein hydrolysates, highlighting the main results and the limitations that can restrict the relevance of the studies. Results collected are promising, although in some studies, physiological changes could not be observed. When responses were observed, they sometimes did not refer to relevant parameters and the immunomodulatory properties could not be clearly established with the current evidence. Well-designed clinical trials are needed in order to evaluate the role of protein hydrolysates in immunonutrition.


Assuntos
Peptídeos , Hidrolisados de Proteína , Animais , Humanos , Peptídeos/farmacologia , Peptídeos/química , Alimento Funcional
7.
Foods ; 12(5)2023 Feb 27.
Artigo em Inglês | MEDLINE | ID: mdl-36900529

RESUMO

The immune-inflammatory, glucose homeostasis, and antioxidant response have a crucial role in the prevention of non-communicable chronic diseases, according to the World Health Organization (WHO) [...].

8.
Nutrients ; 15(4)2023 Feb 14.
Artigo em Inglês | MEDLINE | ID: mdl-36839300

RESUMO

The defense mechanism against harmful stimuli is inflammation. Indeed, neurodegenerative disorders can arise as a result of a persistent neuroinflammation. Beta-amyloid (Aß1-42) is an early trigger in the origination of Alzheimer's disease, leading to synaptic and cognitive impairments. Virgin olive oil (VOO) is correlated with a decreased risk of developing immune-inflammatory disorders, but the potential effects of the phenolic fraction (PF) from VOO in the modulation of neuroinflammatory processes in neutrophils remain unknown. In this study, we investigated the ability of the PF to modulate the activation of Aß1-42-stimulated primary human neutrophils, focusing on the expression of gene and surface markers and the release of pro-inflammatory and chemoattractant mediators. Down-regulation of pro-inflammatory cytokine gene expression in Aß1-42-treated neutrophils, among other changes, was reported. Furthermore, pretreatment with PF prevented neutrophil activation. The beneficial effects in the modulation of inflammatory responses show the relevance of VOO to achieve a healthier diet that can help prevent inflammatory diseases.


Assuntos
Neutrófilos , Fenóis , Humanos , Azeite de Oliva/farmacologia , Fenóis/farmacologia , Peptídeos beta-Amiloides , Dieta
9.
Nutrients ; 15(2)2023 Jan 13.
Artigo em Inglês | MEDLINE | ID: mdl-36678282

RESUMO

Nutraceuticals act as cellular and functional modulators, contributing to the homeostasis of physiological processes. In an inflammatory microenvironment, these functional foods can interact with the immune system by modulating or balancing the exacerbated proinflammatory response. In this process, immune cells, such as antigen-presenting cells (APCs), identify danger signals and, after interacting with T lymphocytes, induce a specific effector response. Moreover, this conditions their change of state with phenotypical and functional modifications from the resting state to the activated and effector state, supposing an increase in their energy requirements that affect their intracellular metabolism, with each immune cell showing a unique metabolic signature. Thus, nutraceuticals, such as polyphenols, vitamins, fatty acids, and sulforaphane, represent an active option to use therapeutically for health or the prevention of different pathologies, including obesity, metabolic syndrome, and diabetes. To regulate the inflammation associated with these pathologies, intervention in metabolic pathways through the modulation of metabolic energy with nutraceuticals is an attractive strategy that allows inducing important changes in cellular properties. Thus, we provide an overview of the link between metabolism, immune function, and nutraceuticals in chronic inflammatory processes associated with obesity and diabetes, paying particular attention to nutritional effects on APC and T cell immunometabolism, as well as the mechanisms required in the change in energetic pathways involved after their activation.


Assuntos
Células Apresentadoras de Antígenos , Linfócitos T , Humanos , Células Apresentadoras de Antígenos/metabolismo , Macrófagos/metabolismo , Inflamação/metabolismo , Suplementos Nutricionais , Obesidade/metabolismo
10.
Foods ; 11(15)2022 Aug 07.
Artigo em Inglês | MEDLINE | ID: mdl-35954130

RESUMO

Seeds from non-drug varieties of hemp (Cannabis sativa L.) have been used for traditional medicine, food, and fiber production. Our study shows that phytol obtained from hemp seed oil (HSO) exerts anti-inflammatory activity in human monocyte-macrophages. Fresh human monocytes and human macrophages derived from circulating monocytes were used to evaluate both plasticity and anti-inflammatory effects of phytol from HSO at 10-100 mM using FACS analysis, ELISA, and RT-qPCR methods. The quantitative study of the acyclic alcohol fraction isolated from HSO shows that phytol is the most abundant component (167.59 ± 1.81 mg/Kg of HSO). Phytol was able to skew monocyte-macrophage plasticity toward the anti-inflammatory non-classical CD14+CD16++ monocyte phenotype and toward macrophage M2 (CD200Rhigh and MRC-1high), as well as to reduce the production of IL-1ß, IL-6, and TNF-α, diminishing the inflammatory competence of mature human macrophages after lipopolysaccharide (LPS) treatment. These findings point out for the first time the reprogramming and anti-inflammatory activity of phytol in human monocyte-macrophages. In addition, our study may help to understand the mechanisms by which phytol from HSO contributes to the constant and progressive plasticity of the human monocyte-macrophage linage.

11.
Foods ; 11(5)2022 Feb 22.
Artigo em Inglês | MEDLINE | ID: mdl-35267256

RESUMO

Chia (Salvia hispanica L.) seed has high potential in the development of functional food due to its protein content with a special amino acid profile. Among the hematopoietic-derived cells, monocytes are endowed with high plasticity, responsible for their pro- and anti-inflammatory function in M1 and M2 phenotype polarization, respectively. Indeed, monocytes are involved in several oxidative- and inflammatory-associated disorders such as cancer, obesity, and cardiovascular and neurodegenerative diseases. This study was designed to investigate the role of chia protein hydrolysates (CPHs) in primary human monocyte-macrophage plasticity response using biochemical, RT-qPCR, and ELISA assays. Our results showed that CPHs reduce ROS and nitrite output, as pro-inflammatory cytokine secretion, and enhance the expression and release of anti-inflammatory cytokines. In addition, CPHs reverse LPS-associated M1 polarization into M2. These findings open new opportunities for developing nutritional strategies with chia as a dietary source of biopeptides to prevent the development and progression of oxidative- and inflammatory-related diseases.

12.
Nutr Neurosci ; 25(3): 472-484, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-32401697

RESUMO

OBJECTIVES: Neuroinflammation is a complex inflammatory process in the central nervous system (CNS) where microglia may play a critical role. GPETAFLR is a peptide isolated from Lupinus angustifolius L. protein hydrolysates with functional activity in mononuclear phagocytes. However, it is unknown whether GPETAFLR has neuroprotective effects. METHODS: We analysed the potential anti-neuroinflammatory activity of GPETAFLR by using two different models of neuroinflammation: BV-2 microglial cells and mice with high-fat diet (HFD)-induced obesity. RESULTS: GPETAFLR hampered LPS-induced upregulation of pro-inflammatory and M1 marker genes in BV-2 cells. This effect was accompanied by an unchanged expression of anti-inflammatory IL-10 gene and by an increased expression of M2 marker genes. GPETAFLR also increased the transcriptional activity of M2 marker genes, while the microglia population remained unchanged in number and M1/M2 status in brain of mice with high-fat diet (HFD)-induced obesity. Furthermore, GPETAFLR counteracted HFD-induced downregulation of IL-10 and upregulation of pro-inflammatory markers in the mouse brain, both at gene and protein levels. DISCUSSION: This is the first report describing that a peptide from plant origin robustly restrained the pro-inflammatory activation of microglial cells in cultures and in brain. Our data suggest that GPETAFLR might be instrumental in maintaining CNS homeostasis by inhibiting neuroinflammation.


Assuntos
Lupinus , Microglia , Animais , Encéfalo/metabolismo , Citocinas/metabolismo , Inflamação/induzido quimicamente , Lipopolissacarídeos/farmacologia , Lupinus/metabolismo , Camundongos , Neuroproteção , Peptídeos
13.
Biomolecules ; 11(10)2021 10 04.
Artigo em Inglês | MEDLINE | ID: mdl-34680091

RESUMO

Agri-food industries generate several by-products, including protein-rich materials currently treated as waste. Lupine species could be a sustainable alternative source of protein compared to other crops such as soybean or chickpea. Protein hydrolysates contain bioactive peptides that may act positively in disease prevention or treatment. Inflammatory responses and oxidative stress underlie many chronic pathologies and natural treatment approaches have gained attention as an alternative to synthetic pharmaceuticals. Recent studies have shown that lupin protein hydrolysates (LPHs) could be an important source of biopeptides, especially since they demonstrate anti-inflammatory properties. However, due to their possible degradation by digestive and brush-border enzymes, it is not clear whether these peptides can resist intestinal absorption and reach the bloodstream, where they may exert their biological effects. In this work, the in vitro cellular uptake/transport and the anti-inflammatory and antioxidant properties of LPH were investigated in a co-culture system with intestinal epithelial Caco-2 cells and THP-1-derived macrophages. The results indicate that the LPH crosses the human intestinal Caco-2 monolayer and exerts anti-inflammatory activity in macrophages located in the basement area by decreasing mRNA levels and the production of pro-inflammatory cytokines. A remarkable reduction in nitric oxide and ROS in the cell-based system by peptides from LPH was also demonstrated. Our preliminary results point to underexplored protein hydrolysates from food production industries as a novel, natural source of high-value-added biopeptides.


Assuntos
Anti-Inflamatórios/química , Lupinus/química , Hidrolisados de Proteína/química , Resíduos Sólidos , Agricultura , Anti-Inflamatórios/farmacologia , Antioxidantes/química , Antioxidantes/farmacologia , Células CACO-2 , Humanos , Estresse Oxidativo , Hidrolisados de Proteína/farmacologia
14.
J Nutr Biochem ; 89: 108561, 2021 03.
Artigo em Inglês | MEDLINE | ID: mdl-33249183

RESUMO

In obesity, an elevated accumulation and dysregulation of adipose tissue, due to an imbalance between energy intake and energy expenditure, usually coexists with the loss of responsiveness to leptin in central nervous system, and subsequently with hyperleptinemia. Leptin, a peptide hormone mainly produced by white adipose tissue, regulates energy homeostasis by stimulating energy expenditure and inhibiting food intake. Human obesity is characterized by increased plasma leptin levels, which have been related with different obesity-associated complications, such as chronic inflammatory state (risk factor for diabetes, cardiovascular and autoimmune diseases), as well as infertility and different types of cancer. Besides, leptin is also produced by placenta, and high leptin levels during pregnancy may be related with some pathological conditions such as gestational diabetes. This review focuses on the current insights and emerging concepts on potentially valuable nutrients and food components that may modulate leptin metabolism. Notably, several dietary food components, such as phenols, peptides, and vitamins, are able to decrease inflammation and improve leptin sensitivity by up- or down-regulation of leptin signaling molecules. On the other hand, some food components, such as saturated fatty acids may worsen chronic inflammation increasing the risk for pathological complications. Future research into nutritional mechanisms that restore leptin metabolism and signals of energy homeostasis may inspire new treatment options for obesity-related disorders.


Assuntos
Leptina/metabolismo , Fenômenos Fisiológicos da Nutrição , Obesidade/complicações , Obesidade/metabolismo , Tecido Adiposo/metabolismo , Tecido Adiposo Branco/metabolismo , Animais , Doenças Autoimunes/etiologia , Diabetes Mellitus/etiologia , Ingestão de Energia , Metabolismo Energético , Ácidos Graxos/metabolismo , Feminino , Humanos , Infertilidade/etiologia , Inflamação/etiologia , Masculino , Neoplasias/etiologia
15.
Nutrients ; 12(10)2020 Oct 14.
Artigo em Inglês | MEDLINE | ID: mdl-33066622

RESUMO

Dietary fatty acids have been demonstrated to modulate systemic inflammation and induce the postprandial inflammatory response of circulating immune cells. We hypothesized that postprandial triglyceride-rich lipoproteins (TRLs) may have acute effects on immunometabolic homeostasis by modulating dendritic cells (DCs), sentinels of the immunity that link innate and adaptive immune systems. In healthy volunteers, saturated fatty acid (SFA)-enriched meal raised serum levels of granulocyte/macrophage colony-stimulating factor GM-CSF (SFAs > monounsaturated fatty acids (MUFAs) = polyunsaturated fatty acids (PUFAs)) in the postprandial period. Autologous TRL-SFAs upregulated the gene expression of DC maturation (CD123 and CCR7) and DC pro-inflammatory activation (CD80 and CD86) genes while downregulating tolerogenic genes (PD-L1 and PD-L2) in human monocyte-derived DCs (moDCs). These effects were reversed with oleic acid-enriched TRLs. Moreover, postprandial SFAs raised IL-12p70 levels, while TRL-MUFAs and TRL-PUFAs increased IL-10 levels in serum of healthy volunteers and in the medium of TRL-treated moDCs. In conclusion, postprandial TRLs are metabolic entities with DC-related tolerogenic activity, and this function is linked to the type of dietary fat in the meal. This study shows that the intake of meals enriched in MUFAs from olive oil, when compared with meals enriched in SFAs, prevents the postprandial production and priming of circulating pro-inflammatory DCs, and promotes tolerogenic response in healthy subjects. However, functional assays with moDCs generated in the presence of different fatty acids and T cells could increase the knowledge of postprandial TRLs' effects on DC differentiation and function.


Assuntos
Diferenciação Celular , Células Dendríticas/imunologia , Gorduras na Dieta/administração & dosagem , Gorduras na Dieta/efeitos adversos , Ácidos Graxos/administração & dosagem , Ácidos Graxos/efeitos adversos , Lipoproteínas/metabolismo , Monócitos , Período Pós-Prandial/imunologia , Triglicerídeos/metabolismo , Adulto , Antígeno B7-1/genética , Antígeno B7-1/metabolismo , Células Cultivadas , Células Dendríticas/metabolismo , Células Dendríticas/fisiologia , Feminino , Expressão Gênica , Fator Estimulador de Colônias de Granulócitos e Macrófagos/sangue , Homeostase/efeitos dos fármacos , Humanos , Subunidade alfa de Receptor de Interleucina-3/genética , Subunidade alfa de Receptor de Interleucina-3/metabolismo , Masculino , Refeições , Azeite de Oliva
16.
Foods ; 9(10)2020 Sep 25.
Artigo em Inglês | MEDLINE | ID: mdl-32992712

RESUMO

Wine production is an ancient human activity that generates several by-products, which include some constituents known for their potential in health care and for their role in the food or cosmetic industries. Any variety of grape (Vitis vinifera L.) contains nutrients and bioactive compounds available from their juice or solid parts. Grape seed extract has demonstrated many activities in disease prevention, such as antioxidant effects, which make it a potential source of nutraceuticals. Grape seed is a remarkable winery industry by-product due to the bioactivity of its constituents. Methods for recovery of oil from grape seeds have evolved to improve both the quantity and quality of the yield. Both the lipophilic and hydrophilic chemicals present in the oil of V. vinifera L. make this wine by-product a source of natural nutraceuticals. Food and non-food industries are becoming novel targets of oil obtained from grape seeds given its various properties. This review focuses on the advantages of grape seed oil intake in our diet regarding its chemical composition in industries not related to wine production and the economic and environmental impact of oil production.

17.
Biomolecules ; 10(5)2020 05 22.
Artigo em Inglês | MEDLINE | ID: mdl-32456009

RESUMO

Hemp seeds have a wide variety of chemical compounds which present biological activity. Specifically, the focus on proteins and bioactive peptides are increasing as alternative sources of nutraceutical uses. In the literature, hemp protein products (HPPs) have reported antioxidant and anti-inflammatory properties. This study aimed to determine the inflammation-related modulatory effects of HPPs on lipopolysaccharide (LPS)-activated primary human monocytes. CD14+ cells were immunomagnetically isolated from buffy coats and the anti-inflammatory activity of hemp protein isolate (HPI) and hydrolysates (HPHs) was evaluated on LPS-stimulated human primary monocytes. The specific markers of inflammation, polarization, and chemoattraction were measured by RT-qPCR and ELISA assays. Our results showed that HPPs decreased the pro-inflammatory mediators (TNFα, IL-1ß, and IL-6) and increased the anti-inflammatory mediators (IL-10 and IL-4). In addition, M1 polarization marker gene expression (CCR7 and iNOS) was downregulated by HPPs and, M2 polarization marker gene expression (CD200R and MRC1) was upregulated. Finally, the mRNA expression of chemotaxis genes (CCR2 and CCL2) was downregulated by HPPs. In conclusion, this study suggests that HPPs may improve chronic inflammatory states and promote regenerative processes by reprogramming monocytes toward M2 polarization phenotype.


Assuntos
Anti-Inflamatórios/farmacologia , Cannabis/química , Monócitos/efeitos dos fármacos , Proteínas de Plantas/farmacologia , Hidrolisados de Proteína/farmacologia , Células Cultivadas , Quimiocina CCL2/metabolismo , Humanos , Interleucina-1beta/metabolismo , Interleucina-6/metabolismo , Lipopolissacarídeos/toxicidade , Monócitos/metabolismo , Óxido Nítrico Sintase Tipo II/metabolismo , Receptores de Orexina/metabolismo , Receptores CCR7/metabolismo , Fator de Necrose Tumoral alfa/metabolismo
18.
Food Funct ; 10(10): 6732-6739, 2019 Oct 16.
Artigo em Inglês | MEDLINE | ID: mdl-31576391

RESUMO

Hemp (Cannabis sativa L.) seeds are well known for their potential use as a source of nutrients, fiber, and bioactive compounds. A hemp protein isolate, prepared from defatted hemp flour, was hydrolyzed by alcalase and flavourzyme under specific conditions. The resulting hydrolysates were evaluated for the selection of potentially bioactive hemp protein hydrolysates (HPHs) owing to their DPPH scavenging and ferric reducing antioxidant power activity. In vitro cell-free experiments led to the identification of two bioactive HPHs, HPH20A and HPH60A + 15AF, which were used at 50 and 100 µg mL-1 on BV-2 microglial cells in order to evaluate the anti-neuroinflammatory activities. Our results showed that HPH20A and HPH60A + 15AF down-regulated TNF-α, IL-1ß, and IL-6 mRNA transcriptional levels in LPS-stimulated BV-2 microglial cells. In addition, HPH20A and HPH60A + 15AF up-regulated the gene expression of anti-inflammatory cytokine IL-10. This study suggests for the first time that HPHs may improve the neuroinflammatory and inflammatory states, supporting the nutraceutical value of hemp seeds.


Assuntos
Antioxidantes/farmacologia , Cannabis/química , Fármacos Neuroprotetores/farmacologia , Hidrolisados de Proteína/farmacologia , Sementes/química , Aminoácidos/análise , Animais , Antioxidantes/química , Linhagem Celular , Sobrevivência Celular/efeitos dos fármacos , Suplementos Nutricionais/análise , Endopeptidases/metabolismo , Farinha/análise , Regulação da Expressão Gênica , Hidrólise , Interleucina-10/genética , Interleucina-10/metabolismo , Interleucina-1beta/genética , Interleucina-1beta/metabolismo , Interleucina-6/genética , Interleucina-6/metabolismo , Camundongos , Microglia/citologia , Microglia/metabolismo , Fármacos Neuroprotetores/química , Proteínas de Plantas/química , Proteínas de Plantas/farmacologia , Hidrolisados de Proteína/química , RNA Mensageiro/genética , RNA Mensageiro/metabolismo , Subtilisinas/metabolismo , Fator de Necrose Tumoral alfa/genética , Fator de Necrose Tumoral alfa/metabolismo
19.
J Food Biochem ; 43(8): e12941, 2019 08.
Artigo em Inglês | MEDLINE | ID: mdl-31368572

RESUMO

We have analyzed the effects of minor compounds found in the unsaponifiable fraction (UF) and in the phenolic fraction (PF) of virgin olive oil (VOO) on LPS-induced inflammatory response via visfatin modulation in human monocytes. For this purpose, monocytes were incubated with UF and PF at different concentrations and the pro-inflammatory stimulus LPS for 24 hr; squalene (SQ) and hydroxytyrosol (HTyr), the main components in UF and PF, respectively, were also used. The relative expression of both pro-inflammatory and anti-inflammatory genes, as well as other genes related to the NAD+-biosynthetic pathway was evaluated by RT-qPCR; and the secretion of some of these markers was assessed by ELISA procedures. We found that UF, SQ, PF, and HTyr prevented from LPS-induced dysfunctional gene expression and secretion via visfatin-related gene modulation in human monocytes. These findings unveil a potential beneficial role for minor compounds of VOO in the prevention of inflammatory-disorders. PRACTICAL APPLICATION: In this project, potential health benefits of VOO micronutrients (unsaponifiable and phenolic compounds) were confirmed through anti-inflammatory assays. Our results reveal new interesting researching goals concerning nutrition by considering the role of bioactive VOO compounds in the prevention and progress of diseases related to inflammation.


Assuntos
Anti-Inflamatórios/farmacologia , Inflamação/enzimologia , Monócitos/efeitos dos fármacos , Nicotinamida Fosforribosiltransferase/imunologia , Azeite de Oliva/química , Células Cultivadas , Humanos , Inflamação/tratamento farmacológico , Inflamação/genética , Inflamação/imunologia , Lipopolissacarídeos/efeitos adversos , Lipopolissacarídeos/imunologia , Monócitos/imunologia , Nicotinamida Fosforribosiltransferase/genética , Fenóis/análise , Fenóis/farmacologia
20.
Food Funct ; 10(6): 3303-3311, 2019 Jun 19.
Artigo em Inglês | MEDLINE | ID: mdl-31094410

RESUMO

The present study aimed to test the mechanisms by which GPETAFLR, released from the enzymatic hydrolysis of lupine protein, may modulate the inflammatory response and plasticity in human primary monocytes. Human circulating monocytes and mature macrophages were used to analyze the effects of GPETAFLR on plasticity and inflammatory response using biochemical, flow cytometry, quantitative real-time PCR, and ELISA assays. GPETAFLR skewed the monocyte plasticity towards the anti-inflammatory non-classical CD14+CD16++ monocyte subset and reduced the inflammatory competence of LPS-treated human monocytes diminishing IL-1ß, IL-6, and TNF-α and increasing IL-10 production and gene expression. Results showed that GPETAFLR decreased the frequency of the LPS-induced activated monocyte population (CD14++CD16-), diminished monocyte activation involved down-regulation of CCR2 mRNA expression and protein expression, and decreased gene expression of the LPS-induced chemoattractant mediator CCL2. Our findings imply a new understanding of the mechanisms by which GPETAFLR favor a continuous and gradual plasticity process in the human monocyte/macrophage system and offer novel benefits derived from the consumption of Lupinus angustifolius L. in the prevention of inflammatory-related diseases.


Assuntos
Lupinus/química , Monócitos/efeitos dos fármacos , Peptídeos/farmacologia , Proteínas de Plantas/química , Humanos , Interleucina-1beta/genética , Interleucina-1beta/imunologia , Interleucina-6/genética , Interleucina-6/imunologia , Macrófagos/efeitos dos fármacos , Macrófagos/imunologia , Monócitos/imunologia , Peptídeos/química , Peptídeos/isolamento & purificação , Hidrolisados de Proteína/química , Receptores CCR2/genética , Receptores CCR2/imunologia , Fator de Necrose Tumoral alfa/genética , Fator de Necrose Tumoral alfa/imunologia
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