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Vega-Rojas LJ, Luzardo-Ocampo I, Mosqueda J, Palmerín-Carreño DM, Escobedo-Reyes A, Blanco-Labra A, Escobar-García K, García-Gasca T. Bioaccessibility and In Vitro Intestinal Permeability of a Recombinant Lectin from Tepary Bean ( Phaseolus acutifolius) Using the Everted Intestine Assay. Int J Mol Sci 2021; 22:1049. [PMID: 33494324 PMCID: PMC7866216 DOI: 10.3390/ijms22031049] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 12/07/2020] [Revised: 01/07/2021] [Accepted: 01/13/2021] [Indexed: 12/28/2022] Open
Abstract
Tepary bean (Phaseolus acutifolius) lectins exhibit differential in vitro and in vivo biological effects, but their gastrointestinal interactions and digestion have not yet been assessed. This work aimed to evaluate the changes of a recombinant Tepary bean lectin (rTBL-1) through an in vitro and ex vivo gastrointestinal process. A polyclonal antibody was developed to selectively detect rTBL-1 by Western blot (WB) and immunohistochemical analysis. Everted gut sac viability was confirmed until 60 min, where protein bioaccessibility, apparent permeability coefficient, and efflux ratio showed rTBL-1 partial digestion and absorption. Immunoblot assays suggested rTBL-1 internalization, since the lectin was detected in the digestible fraction. The immunohistochemical assay detected rTBL-1 presence at the apical side of the small intestine, potentially due to the interaction with the intestinal cell membrane. The in silico interactions between rTBL-1 and some saccharides or derivatives showed high binding affinity to sialic acid (-6.70 kcal/mol) and N-acetylglucosamine (-6.10 kcal/mol). The ultra-high-performance liquid chromatography-electron spray ionization-quantitative time-of-flight coupled to mass spectrometry (UHPLC-ESI-QTOF/MS) analysis showed rTBL-1 presence in the gastric content and the non-digestible fraction after intestinal simulation conditions. The results indicated that rTBL-1 partially resisted the digestive conditions and interacted with the intestinal membrane, whereas its digestion allowed the absorption or internalization of the protein or the derivative peptides. Further purification of digestion samples should be conducted to identify intact rTBL-1 protein and digested peptides to assess their physiological effects.
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Affiliation(s)
- Lineth Juliana Vega-Rojas
- Laboratorio de Biología Celular y Molecular, Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, Av. de las Ciencias s/n, Juriquilla, Querétaro 76230, Querétaro, Mexico; (L.J.V.-R.); (D.M.P.-C.); (K.E.-G.)
| | - Ivan Luzardo-Ocampo
- Programa de Investigación y Posgrado en Ciencias de los Alimentos, Facultad de Quimica, Universidad Autónoma de Querétaro, Querétaro 76010, Querétaro, Mexico;
| | - Juan Mosqueda
- Laboratorio de Inmunología y Vacunas, Facultad de Ciencias Naturales, Campus Aeropuerto, Universidad Autónoma de Querétaro, Carretera a Chichimequillas, Ejido Bolaños, Querétaro 76140, Querétaro, Mexico;
| | - Dulce María Palmerín-Carreño
- Laboratorio de Biología Celular y Molecular, Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, Av. de las Ciencias s/n, Juriquilla, Querétaro 76230, Querétaro, Mexico; (L.J.V.-R.); (D.M.P.-C.); (K.E.-G.)
| | - Antonio Escobedo-Reyes
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C., Av. Normalistas 800, Col. Colinas de la Normal, Guadalajara 44270, Jalisco, Mexico;
| | - Alejandro Blanco-Labra
- Centro de Investigación y de Estudios Avanzados Unidad Irapuato, Departamento de Biotecnología y, Bioquímica, Irapuato 36821, Guanajuato, Mexico;
| | - Konisgmar Escobar-García
- Laboratorio de Biología Celular y Molecular, Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, Av. de las Ciencias s/n, Juriquilla, Querétaro 76230, Querétaro, Mexico; (L.J.V.-R.); (D.M.P.-C.); (K.E.-G.)
| | - Teresa García-Gasca
- Laboratorio de Biología Celular y Molecular, Facultad de Ciencias Naturales, Universidad Autónoma de Querétaro, Av. de las Ciencias s/n, Juriquilla, Querétaro 76230, Querétaro, Mexico; (L.J.V.-R.); (D.M.P.-C.); (K.E.-G.)
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