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Martínez-Alarcón D, Varrot A, Fitches E, Gatehouse JA, Cao M, Pyati P, Blanco-Labra A, Garcia-Gasca T. Recombinant Lectin from Tepary Bean ( Phaseolus acutifolius) with Specific Recognition for Cancer-Associated Glycans: Production, Structural Characterization, and Target Identification. Biomolecules 2020; 10:E654. [PMID: 32340396 PMCID: PMC7226325 DOI: 10.3390/biom10040654] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 04/16/2020] [Accepted: 04/20/2020] [Indexed: 12/16/2022] Open
Abstract
Herein, we report the production of a recombinant Tepary bean lectin (rTBL-1), its three-dimensional (3D) structure, and its differential recognition for cancer-type glycoconjugates. rTBL-1 was expressed in Pichia pastoris, yielding 316 mg per liter of culture, and was purified by nickel affinity chromatography. Characterization of the protein showed that rTBL-1 is a stable 120 kDa homo-tetramer folded as a canonical leguminous lectin with two divalent cations (Ca2+ and Mn2+) attached to each subunit, confirmed in its 3D structure solved by X-ray diffraction at 1.9 Å resolution. Monomers also presented a ~2.5 kDa N-linked glycan located on the opposite face of the binding pocket. It does not participate in carbohydrate recognition but contributes to the stabilization of the interfaces between protomers. Screening for potential rTBL-1 targets by glycan array identified 14 positive binders, all of which correspond to β1-6 branched N-glycans' characteristics of cancer cells. The presence of α1-6 core fucose, also tumor-associated, improved carbohydrate recognition. rTBL-1 affinity for a broad spectrum of mono- and disaccharides was evaluated by isothermal titration calorimetry (ITC); however, no interaction was detected, corroborating that carbohydrate recognition is highly specific and requires larger ligands for binding. This would explain the differential recognition between healthy and cancer cells by Tepary bean lectins.
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Affiliation(s)
- Dania Martínez-Alarcón
- Centro de Investigación y de Estudios Avanzados Unidad Irapuato, Departamento de Biotecnología y Bioquímica, Irapuato 36821, Guanaj uato, Mexico;
- University of Grenoble Alpes, CNRS, CERMAV, 38000 Grenoble, France;
| | - Annabelle Varrot
- University of Grenoble Alpes, CNRS, CERMAV, 38000 Grenoble, France;
| | - Elaine Fitches
- Department of Biosciences, Durham University, Durham DH1 3LE, UK; (E.F.); (J.A.G.); (M.C.); (P.P.)
| | - John A. Gatehouse
- Department of Biosciences, Durham University, Durham DH1 3LE, UK; (E.F.); (J.A.G.); (M.C.); (P.P.)
| | - Min Cao
- Department of Biosciences, Durham University, Durham DH1 3LE, UK; (E.F.); (J.A.G.); (M.C.); (P.P.)
| | - Prashant Pyati
- Department of Biosciences, Durham University, Durham DH1 3LE, UK; (E.F.); (J.A.G.); (M.C.); (P.P.)
| | - Alejandro Blanco-Labra
- Centro de Investigación y de Estudios Avanzados Unidad Irapuato, Departamento de Biotecnología y Bioquímica, Irapuato 36821, Guanaj uato, Mexico;
| | - Teresa Garcia-Gasca
- Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, Santiago de Querétaro 76230, Querétaro, Mexico
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Avalos-Soriano A, De la Cruz-Cordero R, López-Martínez FJ, Rosado JL, Duarte-Vázquez MÁ, Garcia-Gasca T. Effect of a β-Hydroxyphosphonate Analogue of ʟ-Carnitine on Insulin-Sensitive and Insulin-Resistant 3T3-L1 Adipocytes. Pharmacology 2015; 96:99-106. [PMID: 26160659 DOI: 10.1159/000430919] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Accepted: 04/23/2015] [Indexed: 11/19/2022]
Abstract
This study investigated the effect of a β-x200B;hydroxyphosphonate analog of ʟ-carnitine (L-CA) (CAS number: 1220955-x200B;20-3, Component: 1221068-91-2, C12H29NO4PI), (3-Hexanaminium, 1-(dimethoxyphosphinyl)-2-hydroxy-N,N,N,5-x200B;tetramethy-iodide (1:1), (2R, 3S)) on parameters related with type-2 diabetes in an in vitro model. Nontoxic concentrations of L-CA were assayed and compared to commercial ʟ-carnitine effects. L-CA did not affect adipogenesis in normal cells, but an increment of TG accumulation was observed on insulin-resistant adipocytes (80%) when compared with resistant control. L-CA also stimulated glucose analog 2-NBDG uptakes on insulin-resistant adipocytes in a similar way as insulin when compared to insulin-resistant cells. Our results show that the L-CA promoted insulin-like responses on insulin-resistant adipocytes without appreciable pro-adipogenic effect in sensitive adipocytes.
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Affiliation(s)
- Anaguiven Avalos-Soriano
- Facultad de Ciencias Naturales, Universidad Autx00F3;noma de Querx00E9;taro, Queretaro, Qro., Mexico
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Ferriz-Martínez R, García-García K, Torres-Arteaga I, Rodriguez-Mendez AJ, Guerrero-Carrillo MDJ, Moreno-Celis U, Ángeles-Zaragoza MV, Blanco-Labra A, Gallegos-Corona MA, Robles-Álvarez JP, Mendiola-Olaya E, Andrade-Montemayor HM, Garcia OP, Garcia-Gasca T. Tolerability assessment of a lectin fraction from Tepary bean seeds ( Phaseolus acutifolius) orally administered to rats. Toxicol Rep 2014; 2:63-69. [PMID: 28962338 PMCID: PMC5598141 DOI: 10.1016/j.toxrep.2014.10.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2014] [Revised: 10/19/2014] [Accepted: 10/20/2014] [Indexed: 11/04/2022] Open
Abstract
We examine the toxicological profile of Tepary Bean lectins by oral route. Tepary bean lectins showed digestion resistance up to 72 h. Tepary bean lectins induce granulocyte increase after 24 h treatment. A reduction in body weight gain was observed after 6 weeks treatment. No toxicity was observed for Tepary bean lectins after 6 weeks.
Our previous studies have shown that a lectin rich fraction (TBLF) extracted from Tepary bean seeds differentially inhibits cancer cells proliferation in vitro. Before testing the in vivo anticancer effect, the acute and subchronic toxicological assays in rats were conducted, where an oral dose of 50 mg/body weight kg was determined as the NOAEL. This study evaluated the resistance to digestion and complete blood count (CBC) after 24 h of the orally administered 50 mg/kg TBLF. The digestion resistance test showed lectins activity retention after 72 h and the CBC study showed a high level of eosinophils, suggesting an allergic-like response. Tolerability was assayed after 6 weeks of treatment by dosing with an intragastric cannula every third day per week. It was observed a transient reduction in food intake and body weight in the first weeks, resulting in body weight gain reduction of 10% respect to the control group at the end of the study. Additionally, organs weight, histopathological analysis and blood markers for nutritional status and for liver, pancreas and renal function were not affected. Our results suggest that 50 mg/kg TBLF administered by oral route, exhibit no toxicity in rats and it was well tolerated. Further studies will focus on long-term studies.
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Affiliation(s)
- Roberto Ferriz-Martínez
- Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, P.O. Box 184, Querétaro 76010, Qro., C.P. 76230, Mexico
| | - Karina García-García
- Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, P.O. Box 184, Querétaro 76010, Qro., C.P. 76230, Mexico
| | - Iovanna Torres-Arteaga
- Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, P.O. Box 184, Querétaro 76010, Qro., C.P. 76230, Mexico
| | | | | | - Ulisses Moreno-Celis
- Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, P.O. Box 184, Querétaro 76010, Qro., C.P. 76230, Mexico
| | - Marco Vinicio Ángeles-Zaragoza
- Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, P.O. Box 184, Querétaro 76010, Qro., C.P. 76230, Mexico
| | - Alejandro Blanco-Labra
- Departamento de Biotecnología y Bioquímica, Centro de Investigación y Estudios Avanzados del IPN, P.O. Box 629, Irapuato, Gto., C.P. 36821, Mexico
| | | | - Juan Pablo Robles-Álvarez
- Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, P.O. Box 184, Querétaro 76010, Qro., C.P. 76230, Mexico
| | - Elizabeth Mendiola-Olaya
- Departamento de Biotecnología y Bioquímica, Centro de Investigación y Estudios Avanzados del IPN, P.O. Box 629, Irapuato, Gto., C.P. 36821, Mexico
| | | | - Olga Patricia Garcia
- Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, P.O. Box 184, Querétaro 76010, Qro., C.P. 76230, Mexico
| | - Teresa Garcia-Gasca
- Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, P.O. Box 184, Querétaro 76010, Qro., C.P. 76230, Mexico
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Rocha-Guzmán NE, Gallegos-Infante JA, González-Laredo RF, Reynoso-Camacho R, Ramos-Gómez M, Garcia-Gasca T, Rodríguez-Muñoz ME, Guzmán-Maldonado SH, Medina-Torres L, Lujan-García BA. Antioxidant activity and genotoxic effect on HeLa cells of phenolic compounds from infusions of Quercus resinosa leaves. Food Chem 2009. [DOI: 10.1016/j.foodchem.2009.01.050] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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