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Chamone MER, Ascheri JLR, Vargas-Solórzano JW, Stephan MP, Carvalho CWP. Chemical Characterization of White Lupin (Lupinus albus) Flour Treated by Extrusion Cooking and Aqueous Debittering Processes. PLANT FOODS FOR HUMAN NUTRITION (DORDRECHT, NETHERLANDS) 2023:10.1007/s11130-023-01050-0. [PMID: 36826692 DOI: 10.1007/s11130-023-01050-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/11/2023] [Indexed: 06/18/2023]
Abstract
Lupin is a very nutritious legume with high levels of protein and fiber, but it also contains quinolizidine alkaloids which, depending on the species, can accumulate to toxic levels. The objective of this work was to evaluate the white lupin chemical composition, due to the effects of different processes (aqueous debittering, extrusion cooking, and reactive extrusion), aiming at reducing total alkaloids, preserving fibers, and increasing in vitro protein digestibility. Regarding raw material, the aqueous process reduced significantly total alkaloids (-93.87%), increased dietary fiber (+22.03%), and increased protein digestibility (+6.73%), whereas the extrusion processes were inefficient to reduce alkaloids (< -3.70%) and reduced the dietary fiber content, the reduction being more severe during reactive extrusion (-75.36%). Protein digestibility was improved by extrusion cooking (+3.07%), while the reactive extrusion reduced digestibility (-12.50%). Electrophoresis and quantification of soluble proteins and aromatic amino acids confirmed the high digestibility index, staying only the γ-conglutin fraction in the digested samples evaluated by SDS-PAGE. The aqueous process proved to be the best option, as it reduces the alkaloid content to safe levels and improves the protein digestion of white lupin flour.
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Affiliation(s)
- Meiry Ellen Ramos Chamone
- Postgraduate Program in Food Science and Technology, Universidade Federal Rural do Rio de Janeiro, Rodovia Br 465, km 7, Seropédica, RJ, CEP 23890-000, Brazil
| | - José Luis Ramírez Ascheri
- Embrapa Agroindústria de Alimentos, Food Extrusion, Physical Properties, and Biochemistry Labs, Avenida das Américas 29501, Guaratiba, Rio de Janeiro, RJ, CEP 23020-470, Brazil
| | - Jhony Willian Vargas-Solórzano
- Embrapa Agroindústria de Alimentos, Food Extrusion, Physical Properties, and Biochemistry Labs, Avenida das Américas 29501, Guaratiba, Rio de Janeiro, RJ, CEP 23020-470, Brazil.
| | - Marília Penteado Stephan
- Embrapa Agroindústria de Alimentos, Food Extrusion, Physical Properties, and Biochemistry Labs, Avenida das Américas 29501, Guaratiba, Rio de Janeiro, RJ, CEP 23020-470, Brazil
| | - Carlos Wanderlei Piler Carvalho
- Embrapa Agroindústria de Alimentos, Food Extrusion, Physical Properties, and Biochemistry Labs, Avenida das Américas 29501, Guaratiba, Rio de Janeiro, RJ, CEP 23020-470, Brazil
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Hu K, Huang H, Li H, Wei Y, Yao C. Legume-Derived Bioactive Peptides in Type 2 Diabetes: Opportunities and Challenges. Nutrients 2023; 15:nu15051096. [PMID: 36904097 PMCID: PMC10005352 DOI: 10.3390/nu15051096] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 02/17/2023] [Accepted: 02/20/2023] [Indexed: 02/25/2023] Open
Abstract
Diabetes mellitus is a complex disorder characterized by insufficient insulin production or insulin resistance, which results in a lifelong dependence on glucose-lowering drugs for almost all patients. During the fight with diabetes, researchers are always thinking about what characteristics the ideal hypoglycemic drugs should have. From the point of view of the drugs, they should maintain effective control of blood sugar, have a very low risk of hypoglycemia, not increase or decrease body weight, improve β-cell function, and delay disease progression. Recently, the advent of oral peptide drugs, such as semaglutide, brings exciting hope to patients with chronic diabetes. Legumes, as an excellent source of protein, peptides, and phytochemicals, have played significant roles in human health throughout human history. Some legume-derived peptides with encouraging anti-diabetic potential have been gradually reported over the last two decades. Their hypoglycemic mechanisms have also been clarified at some classic diabetes treatment targets, such as the insulin receptor signaling pathway or other related pathways involved in the progress of diabetes, and key enzymes including α-amylase, α-glucosidase, and dipeptidyl peptidase-IV (DPP-4). This review summarizes the anti-diabetic activities and mechanisms of peptides from legumes and discusses the prospects of these peptide-based drugs in type 2 diabetes (T2D) management.
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Combined Gamma Conglutin and Lupanine Treatment Exhibits In Vivo an Enhanced Antidiabetic Effect by Modulating the Liver Gene Expression Profile. Pharmaceuticals (Basel) 2023; 16:ph16010117. [PMID: 36678614 PMCID: PMC9867068 DOI: 10.3390/ph16010117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/05/2023] [Accepted: 01/08/2023] [Indexed: 01/15/2023] Open
Abstract
Previous studies have individually shown the antidiabetic potential of gamma conglutin (Cγ) and lupanine from lupins. Until now, the influence of combining both compounds and the effective dose of the combination have not been assessed. Moreover, the resulting gene expression profile from this novel combination remains to be explored. Therefore, we aimed to evaluate different dose combinations of Cγ and lupanine by the oral glucose tolerance test (OGTT) to identify the higher antidiabetic effect on a T2D rat model. Later, we administered the selected dose combination during a week. Lastly, we evaluated biochemical parameters and liver gene expression profile using DNA microarrays and bioinformatic analysis. We found that the combination of 28 mg/kg BW Cγ + 20 mg/kg BW lupanine significantly reduced glycemia and lipid levels. Moreover, this treatment positively influenced the expression of Pdk4, G6pc, Foxo1, Foxo3, Ppargc1a, Serpine1, Myc, Slc37a4, Irs2, and Igfbp1 genes. The biological processes associated with these genes are oxidative stress, apoptosis regulation, and glucose and fatty-acid homeostasis. For the first time, we report the beneficial in vivo effect of the combination of two functional lupin compounds. Nevertheless, further studies are needed to investigate the pharmacokinetics and pharmacodynamics of the Cγ + lupanine combined treatment.
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Lupinus albus γ-Conglutin: New Findings about Its Action at the Intestinal Barrier and a Critical Analysis of the State of the Art on Its Postprandial Glycaemic Regulating Activity. Nutrients 2022; 14:nu14173666. [PMID: 36079925 PMCID: PMC9460565 DOI: 10.3390/nu14173666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 08/25/2022] [Accepted: 09/02/2022] [Indexed: 11/16/2022] Open
Abstract
γ-Conglutin (γ-C) is the glycoprotein from the edible seed L. albus, studied for long time for its postprandial glycaemic regulating action. It still lacks clear information on what could happen at the meeting point between the protein and the organism: the intestinal barrier. We compared an in vitro system involving Caco-2 and IPEC-J2 cells with an ex vivo system using pig ileum and jejunum segments to study γ-C transport from the apical to the basolateral compartment, and its effects on the D-glucose uptake and glucose transporters protein expression. Finally, we studied its potential in modulating glucose metabolism by assessing the possible inhibition of α-amylase and α-glucosidase. RP-HPLC analyses showed that γ-C may be transported to the basolateral side in the in vitro system but not in the pig intestines. γ-C was also able to promote a decrease in glucose uptake in both cells and jejunum independently from the expression of the SGLT1 and GLUT2 transporters.
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Zepeda-Peña AC, Gurrola-Díaz CM, Domínguez-Rosales JA, García-López PM, Pizano-Andrade JC, Hernández-Nazará ZH, Vargas-Guerrero B. Effect of Lupinus rotundiflorus gamma conglutin treatment on JNK1 gene expression and protein activation in a rat model of type 2 diabetes. PHARMACEUTICAL BIOLOGY 2021; 59:374-380. [PMID: 33784492 PMCID: PMC8018548 DOI: 10.1080/13880209.2021.1893757] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 01/05/2021] [Accepted: 02/17/2021] [Indexed: 06/12/2023]
Abstract
CONTEXT Gamma conglutin (Cγ) from lupine species represents a potential complementary treatment for type 2 diabetes mellitus (T2DM) because of its hypoglycaemic effect. However, its underlying mechanism of action is not fully known. OBJECTIVE To evaluate whether Cγ from Lupinus rotundiflorus M. E. Jones (Fabaceae) modulates c-Jun N-terminal kinase 1 (JNK1) expression and activation in a T2DM rat model. MATERIALS AND METHODS Gamma conglutin isolated from L. rotundiflorus seeds was characterized by SDS-PAGE. Fifteen Wistar rats with streptozotocin-induced T2DM (HG) were randomized into three groups (n = 5): vehicle administration (HG-Ctrl), oral treatment with Cγ (120 mg/kg/day) (HG-Lr) for one week, and treatment with metformin (300 mg/kg/day) (HG-Met); a healthy group (Ctrl, n = 5) was included as control. The levels of glucose and biomarkers of renal and hepatic function were measured pre- and post-treatment. Hepatic Jnk1 expression and phosphorylation of JNK1 were evaluated by qRT-PCR and western blot, respectively. RESULTS Oral treatment with either Cγ or metformin reduced serum glucose level to 86.30 and 74.80 mg/dL, respectively (p ˂ 0.05), from the basal levels. Jnk1 expression was 0.65- and 0.54-fold lower (p ˂ 0.05) in the HG-Lr and HG-Met groups, respectively, than in HG-Ctrl. Treatment with Cγ decreased JNK1 phosphorylation. However, Cγ did not change the levels of kidney and liver biomarkers. DISCUSSION AND CONCLUSIONS Treatment with Cγ from L. rotundiflorus inhibited Jnk1 expression, in vivo, suggesting JNK1 as a potential therapeutic target in diabetes and revealing one mechanism underlying the hypoglycaemic effect of lupine Cγ. Nevertheless, further studies are required.
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Affiliation(s)
- Andrea Catalina Zepeda-Peña
- Instituto de Investigación en Enfermedades Crónico Degenerativas, Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, México
| | - Carmen Magdalena Gurrola-Díaz
- Instituto de Investigación en Enfermedades Crónico Degenerativas, Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, México
| | - José Alfredo Domínguez-Rosales
- Instituto de Investigación en Enfermedades Crónico Degenerativas, Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, México
| | - Pedro Macedonio García-López
- Departamento de Botánica y Zoología, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Zapopan, México
| | - Juan Carlos Pizano-Andrade
- Departamento de Botánica y Zoología, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Zapopan, México
| | - Zamira Helena Hernández-Nazará
- Instituto de Investigación en Enfermedades Crónico Degenerativas, Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, México
| | - Belinda Vargas-Guerrero
- Instituto de Investigación en Enfermedades Crónico Degenerativas, Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, México
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Tapadia M, Johnson S, Utikar R, Newsholme P, Carlessi R. Antidiabetic effects and mechanisms of action of γ-conglutin from lupin seeds. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104786] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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Boukid F, Pasqualone A. Lupine (Lupinus spp.) proteins: characteristics, safety and food applications. Eur Food Res Technol 2021. [DOI: 10.1007/s00217-021-03909-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Grácio M, Rocha J, Pinto R, Boavida Ferreira R, Solas J, Eduardo‐Figueira M, Sepodes B, Ribeiro AC. A proposed lectin-mediated mechanism to explain the in Vivo antihyperglycemic activity of γ-conglutin from Lupinus albus seeds. Food Sci Nutr 2021; 9:5980-5996. [PMID: 34760231 PMCID: PMC8565248 DOI: 10.1002/fsn3.2520] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 07/27/2021] [Accepted: 07/30/2021] [Indexed: 01/07/2023] Open
Abstract
Experiments conducted in vitro and in vivo, as well as clinical trials for hypoglycemic therapeutics, support the hypoglycemic properties of the lectin γ-conglutin, a Lupinus seed storage protein, by a mechanism not yet been clarified. Structural studies established that binding of γ-conglutin, in native and denatured form, to insulin occurs by a strong binding that resists rupture when 0.4 M NaCl and 0.4 M galactose are present, suggesting that strong electrostatic interactions are involved. Studies on binding of γ-conglutin in native and denatured form to HepG2 membrane glycosylated receptors were conducted, which reveal that only the native form of γ-conglutin with lectin activity is capable of binding to these receptors. Glycosylated insulin receptors were detected on purified HepG2 cell membranes and characterized by 1D and 2D analyses. Preclinical assays with male mice (CD-1) indicated that native and denatured γ-conglutins display antihyperglycemic effect, decreasing glucose in blood comparable after 120 min to that exhibited by the animal group treated with metformin, used to treat T2D and used as a positive control. Measurement of organ injury/functional biomarkers (hepatic, pancreatic, renal, and lipid profile) was comparable to that of metformin treatment or even better in terms of safety endpoints (pancreatic and hepatic biomarkers).
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Affiliation(s)
- Madalena Grácio
- Faculdade de Farmácia da Universidade de LisboaLisboaPortugal
- Linking Landscape, Environment, Agriculture and Food (LEAF)University of Lisbon Higher Institute of AgronomyLisbonPortugal
| | - João Rocha
- Research Institute for Medicines and Pharmaceutical Sciences (iMed.UL) and Faculdade de Farmácia da Universidade de LisboaLisboaPortugal
| | - Rui Pinto
- Research Institute for Medicines and Pharmaceutical Sciences (iMed.UL) and Faculdade de Farmácia da Universidade de LisboaLisboaPortugal
- JCS Dr Joaquim Chaves Lab Análises ClínicasAlgésPortugal
| | - Ricardo Boavida Ferreira
- Linking Landscape, Environment, Agriculture and Food (LEAF)University of Lisbon Higher Institute of AgronomyLisbonPortugal
| | - João Solas
- Research Institute for Medicines and Pharmaceutical Sciences (iMed.UL) and Faculdade de Farmácia da Universidade de LisboaLisboaPortugal
- HTRC‐Health and Technology Research CenterESTeSLInstituto Superior TécnicoUniversidade de LisboaLisboaPortugal
| | - Maria Eduardo‐Figueira
- Research Institute for Medicines and Pharmaceutical Sciences (iMed.UL) and Faculdade de Farmácia da Universidade de LisboaLisboaPortugal
| | - Bruno Sepodes
- Research Institute for Medicines and Pharmaceutical Sciences (iMed.UL) and Faculdade de Farmácia da Universidade de LisboaLisboaPortugal
| | - Ana Cristina Ribeiro
- Faculdade de Farmácia da Universidade de LisboaLisboaPortugal
- Linking Landscape, Environment, Agriculture and Food (LEAF)University of Lisbon Higher Institute of AgronomyLisbonPortugal
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Lupin γ-conglutin protects against cell death induced by oxidative stress and lipotoxicity, but transiently inhibits in vitro insulin secretion by increasing K ATP channel currents. Int J Biol Macromol 2021; 187:76-90. [PMID: 34280449 DOI: 10.1016/j.ijbiomac.2021.07.088] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 07/03/2021] [Accepted: 07/13/2021] [Indexed: 02/08/2023]
Abstract
Lupin γ-conglutin beneficially modulates glycemia, but whether it protects against oxidative and lipotoxic damage remains unknown. Here, we studied the effects of γ-conglutin on cell death provoked by hydrogen peroxide and palmitate in HepG2 hepatocytes and insulin-producing MIN6 cells, and if a modulation of mitochondrial potential and reactive oxygen species (ROS) levels was involved. We also investigated how γ-conglutin influences insulin secretion and electrical activity of β-cells. The increased apoptosis of HepG2 cells exposed to hydrogen peroxide was prevented by γ-conglutin, and the viability and ROS content in γ-conglutin-treated cells was similar to that of non-exposed cells. Additionally, γ-conglutin partially protected MIN6 cells against hydrogen peroxide-induced death. This was associated with a marked reduction in ROS. No significant changes were found in the mitochondrial potential of γ-conglutin-treated cells. Besides, we observed a partial protection against lipotoxicity only in hepatocytes. Unexpectedly, we found a transient inhibition of insulin secretion, plasma membrane hyperpolarization, and higher KATP channel currents in β-cells treated with γ-conglutin. Our data show that γ-conglutin protects against cell death induced by oxidative stress or lipotoxicity by decreasing ROS and might also indicate that γ-conglutin promotes a β-cell rest, which could be useful for preventing β-cell exhaustion in chronic hyperglycemia.
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Hirano H. Basic 7S globulin in plants. J Proteomics 2021; 240:104209. [PMID: 33794343 DOI: 10.1016/j.jprot.2021.104209] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 03/23/2021] [Accepted: 03/24/2021] [Indexed: 02/06/2023]
Abstract
Soybean seed basic 7S globulin (Bg7S)-like proteins are found in many plant species. Bg7S was originally thought to be a major seed storage protein but was later found to be multifunctional, with stress response, antibacterial activity, hormone receptor-like activity. Moreover, functional differences between Bg7S proteins from legumes and other plants have been revealed. In non-leguminous plants, Bg7S molecules inhibit the invasion of pathogenic microorganisms. However, although leguminous plants have a peptide called leg-insulin that can bind to Bg7S, non-leguminous plants do not have leginsulin. Bg7S in leguminous plants and other plants may have evolved in functionally different directions. Several homologs of Bg7S in plants are reported, but there is no homolog of this protein in peas, suggesting that the pea evolution might have followed a different route when compared to other leguminous plants. Although the functions of Bg7S are well documented in plants, recent studies suggest that this protein is also important in controlling blood glucose level, blood pressure and plasma cholesterol level, and cancer cell antiproliferative actions.
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Affiliation(s)
- Hisashi Hirano
- Advanced Medical Science Research Center, Gunma Paz University, Shibukawa 1338-4, Shibukawa, Gunma 377-0008, Japan; Institute for Molecular and Cellular Regulation, Gunma University, Showa 3-39-15, Maebashi 371-8512, Japan.
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Soto‐Luna IC, García‐López PM, Vargas‐Guerrero B, Guzmán TJ, Domínguez‐Rosales JA, Gurrola‐Díaz CM. Lupin protein isolate improves insulin sensitivity and steatohepatitis in vivo and modulates the expression of the Fasn, Gys2, and Gsk3b genes. Food Sci Nutr 2021; 9:2549-2560. [PMID: 34026071 PMCID: PMC8116848 DOI: 10.1002/fsn3.2206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 02/12/2021] [Accepted: 02/14/2021] [Indexed: 01/04/2023] Open
Abstract
Although studies on lupin protein isolate (LPI) have indicated the presence of a preventive effect on insulin resistance (IR) and lipid disturbances, their influence on established pathological traits has received little attention. Here, we evaluated the in vivo effects of LPI on IR and steatohepatitis as well as its influence on genes involved in lipid and carbohydrate metabolism. We first induced IR and steatohepatitis in rats by maintaining them on a high-fat diet for 5 weeks. Thereafter, we administered LPI to the rats daily for 3 weeks. LPI improved insulin sensitivity (AUC: 6,777 ± 232 vs. 4,971 ± 379, p < .05, pre- vs. post-treatment values) and reduced glucose and triglyceride levels by one-third. In addition, LPI-treated rats exhibited attenuated steatohepatitis. At the molecular level, LPI treatment reduced liver Fasn gene expression substantially but increased Gys2 and Gsk3b levels. We concluded that the hypolipidemic and hypoglycemic activities of LPI may be caused by reduced liver lipogenesis and modulation of insulin sensitization mechanisms.
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Affiliation(s)
- Irma Catalina Soto‐Luna
- Instituto de Investigación en Enfermedades Crónico‐DegenerativasInstituto Transdisciplinar de Investigación e Innovación en SaludDepartamento de Biología Molecular y GenómicaCentro Universitario de Ciencias de la SaludUniversidad de GuadalajaraGuadalajaraMexico
| | - Pedro Macedonio García‐López
- Departamento de Botánica y ZoologíaCentro Universitario de Ciencias Biológicas y AgropecuariasUniversidad de GuadalajaraZapopanMexico
| | - Belinda Vargas‐Guerrero
- Instituto de Investigación en Enfermedades Crónico‐DegenerativasInstituto Transdisciplinar de Investigación e Innovación en SaludDepartamento de Biología Molecular y GenómicaCentro Universitario de Ciencias de la SaludUniversidad de GuadalajaraGuadalajaraMexico
| | - Tereso Jovany Guzmán
- Instituto de Investigación en Enfermedades Crónico‐DegenerativasInstituto Transdisciplinar de Investigación e Innovación en SaludDepartamento de Biología Molecular y GenómicaCentro Universitario de Ciencias de la SaludUniversidad de GuadalajaraGuadalajaraMexico
- Department of Pharmaceutical and Medicinal ChemistryUniversity of MünsterMünsterGermany
| | - José Alfredo Domínguez‐Rosales
- Instituto de Investigación en Enfermedades Crónico‐DegenerativasInstituto Transdisciplinar de Investigación e Innovación en SaludDepartamento de Biología Molecular y GenómicaCentro Universitario de Ciencias de la SaludUniversidad de GuadalajaraGuadalajaraMexico
| | - Carmen Magdalena Gurrola‐Díaz
- Instituto de Investigación en Enfermedades Crónico‐DegenerativasInstituto Transdisciplinar de Investigación e Innovación en SaludDepartamento de Biología Molecular y GenómicaCentro Universitario de Ciencias de la SaludUniversidad de GuadalajaraGuadalajaraMexico
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Guzmán TJ, Gurrola-Díaz CM. Glucokinase activation as antidiabetic therapy: effect of nutraceuticals and phytochemicals on glucokinase gene expression and enzymatic activity. Arch Physiol Biochem 2021; 127:182-193. [PMID: 31210550 DOI: 10.1080/13813455.2019.1627458] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Diabetes represents an important public health problem. Recently, new molecular targets have been identified and exploited to treat this disease. Due to its pivotal role in glucose homeostasis, glucokinase (GCK) is a promising target for the development of novel antidiabetic drugs; however, pharmacological agents that modulate GCK activity have been linked to undesirable side-effects, limiting its use. Interestingly, plants might be a valuable source of new therapeutic compounds with GCK-activating properties and presumably no adverse effects. In this review, we describe biochemical characteristics related to the physiological and pathological importance of GCK, as well as the mechanisms involved in its regulation at different molecular levels. Posteriorly, we present a compendium of findings supporting the potential use of nutraceuticals and phytochemicals in the management of diabetes through modulation of GCK expression and activity. Finally, we propose critical aspects to keep in mind when designing experiments to evaluate GCK modulation properly.
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Affiliation(s)
- Tereso J Guzmán
- Departamento de Biología Molecular y Genómica, Instituto Transdisciplinar de Investigación e Innovación en Salud/Instituto de Investigación en Enfermedades Crónico-Degenerativas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, México
| | - Carmen M Gurrola-Díaz
- Departamento de Biología Molecular y Genómica, Instituto Transdisciplinar de Investigación e Innovación en Salud/Instituto de Investigación en Enfermedades Crónico-Degenerativas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, México
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13
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Guzmán TJ, Martínez-Ayala AL, García-López PM, Soto-Luna IC, Gurrola-Díaz CM. Effect of the acute and chronic administration of Lupinus albus β-conglutin on glycaemia, circulating cholesterol, and genes potentially involved. Biomed Pharmacother 2021; 133:110969. [PMID: 33166762 DOI: 10.1016/j.biopha.2020.110969] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 10/29/2020] [Accepted: 11/01/2020] [Indexed: 02/06/2023] Open
Abstract
Constituents of lupin seeds, like γ-conglutin and lupanine, have gained attention as potential complementary treatments for dysglycaemia management. Notwithstanding, the effect of other lupin components on carbohydrate metabolism, including β-conglutin protein, has received little attention. Here, we investigated the influence of the acute and chronic administration of β-conglutin on glycaemia modulation in normal and streptozotocin induced-to-diabetes rats. We analysed the liver transcriptome modulation exerted by β-conglutin in diabetes-induced rats using DNA microarrays to scout for potential molecular targets and pathways involved in this biological response. The acute administration of β-conglutin reduced the incremental area under the curve of glycaemia in normal and diabetes-induced animals. In a seven-day study with diabetic animals, glycaemia increased significantly in non-treated animals but remained unchanged in animals treated with a daily dose of β-conglutin. Total cholesterol was significantly lower at the end of the experimental period (-21.8 %, p = 0.039). The microarray and gene ontology analyses revealed several targets and pathways potentially modulated by β-conglutin treatment, including a possible down-regulation of Jun kinase activity. Moreover, our data indicate that targets related to oxidative stress, inflammation, and estrogenic activity might orchestrate these metabolic effects. In conclusion, our findings show that β-conglutin may help manage postprandial glycaemia and reduce cholesterol levels under the dysglycaemia stage. We identified and proposed new potential molecular targets for further research related to the mechanism of action of β-conglutin.
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Affiliation(s)
- Tereso J Guzmán
- Instituto de Investigación en Enfermedades Crónico-Degenerativas, Instituto Transdisciplinar de Investigación e Innovación en Salud, Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara. Guadalajara, Jalisco, México.
| | - Alma L Martínez-Ayala
- Centro de Desarrollo de Productos Bióticos, Instituto Politécnico Nacional. Yautepec, Morelos, México.
| | - Pedro M García-López
- Laboratorio de Productos Bióticos, Departamento de Botánica y Zoología, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara. Zapopan, Jalisco, México.
| | - Irma C Soto-Luna
- Instituto de Investigación en Enfermedades Crónico-Degenerativas, Instituto Transdisciplinar de Investigación e Innovación en Salud, Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara. Guadalajara, Jalisco, México.
| | - Carmen M Gurrola-Díaz
- Instituto de Investigación en Enfermedades Crónico-Degenerativas, Instituto Transdisciplinar de Investigación e Innovación en Salud, Departamento de Biología Molecular y Genómica, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara. Guadalajara, Jalisco, México.
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Analysis of hepatic transcriptome modulation exerted by γ-conglutin from lupins in a streptozotocin-induced diabetes model. Gene 2020; 761:145036. [PMID: 32777525 DOI: 10.1016/j.gene.2020.145036] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 06/20/2020] [Accepted: 08/04/2020] [Indexed: 12/16/2022]
Abstract
Lupinus albus γ-conglutin is proposed to positively affect glucose metabolism through inhibition of hepatic glucose production and insulin-mimetic activity; however, the action mechanism is not entirely known. Besides, most studies had focused on its effect on molecular targets directly related to glucose metabolism, and few studies have investigated how γ-conglutin may affect the liver gene expression or if it plays a role in other metabolic processes. Therefore, we investigated the influence of γ-conglutin on the liver transcriptome of streptozotocin-induced diabetic rats using DNA microarrays, ontological analyses, and quantitative PCR. Of the 22,000 genes evaluated, 803 and 173 were downregulated and upregulated, respectively. The ontological analyses of the differentially expressed genes revealed that among others, the mitochondria, microtubules, cytoskeleton, and oxidoreductase activity terms were enriched, implying a possible role of γ-conglutin on autophagy. To corroborate the microarray results, we selected and quantified, by PCR, the expression of two genes associated with autophagy (Atg7 and Snx18) and found their expression augmented two and threefold, respectively; indicating a higher autophagy activity in animals treated with γ-conglutin. Although complementary studies are required, our findings indicate for the first time that the hypoglycaemic effects of γ-conglutin may involve an autophagy induction mechanism, a pivotal process for the preservation of cell physiology and glucose homeostasis.
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15
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Effects on the Caco-2 Cells of a Hypoglycemic Protein from Lupin Seeds in a Solution and Adsorbed on Polystyrene Nanoparticles to Mimic a Complex Food Matrix. Biomolecules 2019; 9:biom9100606. [PMID: 31615064 PMCID: PMC6843813 DOI: 10.3390/biom9100606] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 10/10/2019] [Accepted: 10/13/2019] [Indexed: 12/31/2022] Open
Abstract
The search for bioactivities influencing the human wellbeing of food proteins and peptides is a topic of broad and current interest. γ-Conglutin (γC) is a lupin seed protein drawing remarkable pharmacological and/or nutraceutical interest, as it is able to reduce hyperglycemia in humans and animal models. The present work deepens our investigations to understand the molecular basis of the in vitro effects of γC by testing the possible metabolic effects on cultivated Caco-2 cells. γC and its derived peptides (obtained via simulated gastrointestinal digestion) did not influence the cell viability at incubation times up to 24 h. The incubation of cells with native or digested γC caused no detectable inflammation processes mediated by Nuclear Factor kappa B (NFκB). We checked if treatment with γC or its derived peptides can elicit the expression of two peptide transporters (Pept-1 and Htp-1) by using an RT-qPCR approach. Native γC caused the halving of Pept-1 expression compared to untreated cells, but this effect disappeared when γC was digested. Either native γC or γC peptides reduced the expression levels of Hpt-1. Finally, this work also sheds light on the possible structural modifications of γC that may occur in the gastrointestinal tract, using an in vitro simulated dispersed system with polystyrene nanoparticles (NPs).
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Lupin gamma conglutin protein: effect on Slc2a2, Gck and Pdx-1 gene expression and GLUT2 levels in diabetic rats. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2018. [DOI: 10.1016/j.bjp.2018.08.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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17
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López-Jaramillo P, Otero J, Camacho PA, Baldeón M, Fornasini M. Reevaluating nutrition as a risk factor for cardio-metabolic diseases. COLOMBIA MEDICA (CALI, COLOMBIA) 2018; 49:175-181. [PMID: 30104811 PMCID: PMC6084918 DOI: 10.25100/cm.v49i2.3840] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Introduction: The consumption of saturated fats is considered a risk factor for cardiovascular diseases. Objective: Review published papers on the role of macro-nutrient intake in cardiovascular risk. Results: Recent reports from the PURE study and several previous meta-analyses, show that the consumption of total saturated and unsaturated fat is not associated with risk of acute myocardial infarction or mortality due to cardiovascular disease. High carbohydrate intake was associated with the highest risk of total and cardiovascular mortality, while total fat consumption or of its different types was associated with a lower risk of mortality. A high consumption of fruits, vegetables and legumes was associated with lower risk of total mortality and non-cardiovascular mortality. The consumption of 100 g of legumes, two or three times a week, ameliorated deficiencies of the nutrients contained in these foods and was associated with a reduction in the risk of developing chronic non-communicable diseases. Conclusion: A healthy diet should be balanced and varied, be composed of a proportion of complex carbohydrates rich in fibber between 50-55% of the daily energy consumed, of saturated and unsaturated fat (25-30%), animal and vegetable protein (including legumes) between 15-25%, vitamins, minerals and water. These nutrients are abundantly present in fruits, vegetables, cereals, legumes, milk and its derivatives, eggs and meats, so public policies should promote the availability and access to these nutrients within primary prevention programs to reduce the growing prevalence of cardio-metabolic diseases.
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Affiliation(s)
- Patricio López-Jaramillo
- Dirección de Investigaciones Fundación Oftalmológica de Santander, Floridablanca, Colombia.,Facultad de Salud, Universidad de Santander, Bucaramanga, Colombia.,Facultad de Ciencias de Salud, Universidad Autónoma de Bucaramanga, Floridablanca, Colombia.,Facultad de Ciencias de la Salud Eugenio Espejo, Universidad Tecnológica Equinoccial, Quito, Ecuador
| | - Johanna Otero
- Dirección de Investigaciones Fundación Oftalmológica de Santander, Floridablanca, Colombia
| | - Paul Anthony Camacho
- Dirección de Investigaciones Fundación Oftalmológica de Santander, Floridablanca, Colombia.,Facultad de Ciencias de Salud, Universidad Autónoma de Bucaramanga, Floridablanca, Colombia
| | - Manuel Baldeón
- Facultad de Ciencias de la Salud Eugenio Espejo, Universidad Tecnológica Equinoccial, Quito, Ecuador
| | - Marco Fornasini
- Facultad de Ciencias de la Salud Eugenio Espejo, Universidad Tecnológica Equinoccial, Quito, Ecuador
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Wojciechowicz T, Czubiński J, Billert M, Półciennik A, Nowak KW, Skrzypski M. Suppressive effects of γ-conglutin on differentiation of 3T3-L1 preadipocytes. Int J Food Sci Technol 2018. [DOI: 10.1111/ijfs.13860] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Tatiana Wojciechowicz
- Department of Animal Physiology and Biochemistry; Poznań University of Life Sciences; 60-637 Poznań Poland
| | - Jarosław Czubiński
- Department of Biochemistry and Food Analysis; Poznań University of Life Sciences; 28 Wojska Polskiego 60-637 Poznań Poland
| | - Maria Billert
- Department of Animal Physiology and Biochemistry; Poznań University of Life Sciences; 60-637 Poznań Poland
| | - Artur Półciennik
- Department of Animal Physiology and Biochemistry; Poznań University of Life Sciences; 60-637 Poznań Poland
| | - Krzysztof W. Nowak
- Department of Animal Physiology and Biochemistry; Poznań University of Life Sciences; 60-637 Poznań Poland
| | - Marek Skrzypski
- Department of Animal Physiology and Biochemistry; Poznań University of Life Sciences; 60-637 Poznań Poland
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Muñoz EB, Luna-Vital DA, Fornasini M, Baldeón ME, Gonzalez de Mejia E. Gamma-conglutin peptides from Andean lupin legume (Lupinus mutabilis Sweet) enhanced glucose uptake and reduced gluconeogenesis in vitro. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.04.021] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
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20
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Lo HY, Li CC, Chen FY, Chen JC, Hsiang CY, Ho TY. Gastro-Resistant Insulin Receptor-Binding Peptide from Momordica charantia Improved the Glucose Tolerance in Streptozotocin-Induced Diabetic Mice via Insulin Receptor Signaling Pathway. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:9266-9274. [PMID: 28994284 DOI: 10.1021/acs.jafc.7b03583] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Momordica charantia is a commonly used food and has been used for the management of diabetes. Our previous study has identified an insulin receptor (IR)-binding protein (mcIRBP) from Momordica charantia. Here we identified the gastro-resistant hypoglycemic bioactive peptides from protease-digested mcIRBP. By in vitro digestion and IR kinase activity assay, we found that a 9-amino-acid-residue peptide, mcIRBP-9, was a gastro-resistant peptide that enhanced IR kinase activities. mcIRBP-9 activated IR signaling transduction pathway, which resulted in the phosphorylation of IR, the translocation of glucose transporter 4, and the uptake of glucose in cells. Intraperitoneal and oral administration of mcIRBP-9 stimulated the glucose clearance by 30.91 ± 0.39% and 32.09 ± 0.38%, respectively, in streptozotocin-induced diabetic mice. Moreover, a pilot study showed that daily ingestion of mcIRBP-9 for 30 days decreased the fasting blood glucose levels and glycated hemoglobin (HbA1c) levels by 23.62 ± 6.14% and 24.06 ± 1.53%, respectively. In conclusion, mcIRBP-9 is a unique gastro-resistant bioactive peptide generated after the digestion of mcIRBP. Furthermore, oral administration of mcIRBP-9 improves both the glucose tolerance and the HbA1c levels in diabetic mice via targeting IR signaling transduction pathway.
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Affiliation(s)
| | | | | | - Jaw-Chyun Chen
- Department of Medicinal Botany and Healthcare, Da-Yeh University , Changhua 515, Taiwan
| | | | - Tin-Yun Ho
- Department of Health and Nutrition Biotechnology, Asia University , Taichung 413, Taiwan
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