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Title: | Tissular growth factors profile after teduglutide administration on an animal model of intestinal anastomosis | Other Titles: | Perfil tisular de factores de crecimiento postadministración de teduglutida en un modelo animal de anastomosis intestinal | Authors: | Costa, Beatriz P. Gonçalves, Ana C. Abrantes, Ana M. Alves, Raquel Matafome, Paulo N. Seiça, Raquel Ribeiro, Ana B. Sarmento Botelho, M. Filomena Castro-Sousa, Francisco |
Keywords: | Teduglutide; Growth factors; Intestinal anastomosis; Vascular endothelial growth factor; Connective tissue growth factor; Teduglutida; Factores de crecimiento; Anastomosis intestinal; Factor de crecimiento vascular endotelial; Factor de crecimiento del tejido conectivo | Issue Date: | 16-Jan-2018 | Publisher: | Grupo Aula Medica S.A. | metadata.degois.publication.title: | Nutrición Hospitalaria | metadata.degois.publication.volume: | 35 | metadata.degois.publication.issue: | 1 | Abstract: | Background: Teduglutide is an enterotrophic analogue of glucagon-like peptide-2, with an indirect and poorly understood mechanism of action,
approved for the rehabilitation of short-bowel syndrome. This study aims to analyze the response of tissue growth factors to surgical injury and
teduglutide administration on an animal model of intestinal anastomosis.
Methods: Wistar rats (n = 59) were distributed into four groups: “ileal resection” or “laparotomy”, each one subdivided into “postoperative teduglutide
administration” or “no treatment”; and sacrificed at the third or the seventh day, with ileal sample harvesting. Gene expression of insulin-like
growth factor 1 (Igf1), vascular endothelial growth factor a (Vegfa), transforming growth factor β1 (Tgfβ1), connective tissue growth factor (Ctgf),
fibroblast growth factor 2 (Fgf2), fibroblast growth factor 7 (Fgf7), epidermal growth factor (Egf), heparin-binding epidermal-like growth factor
(Hbegf), platelet-derived growth factor b (Pdgfb) and glucagon-like peptide 2 receptor (Glp2r) was studied by real-time polymerase chain reaction.
Results: Upregulation of Fgf7, Fgf2, Egf, Vegfa and Glp2r at the third day and of Pdgf at the seventh day was verified in the perianastomotic
segment. Teduglutide administration was associated with higher fold-change of relative gene expression of Vegfa (3.6 ± 1.3 vs. 1.9 ± 2.0,
p = 0.0001), Hbegf (2.2 ± 2.3 vs. 1.1 ± 0.9, p = 0.001), Igf1 (1.6 ± 7.6 vs. 0.9 ± 0.7, p = 0.002) and Ctgf (1.1 ± 2.1 vs. 0.6 ± 2.0,
p = 0.013); and lower fold-change of Tgfβ1, Fgf7 and Glp2r.
Conclusions: Those results underscore the recognized role of Igf1 and Hbegf as molecular mediators of the effects of teduglutide and suggest
that other humoral factors, like Vegf and Ctgf, may also be relevant in the perioperative context. Induction of Vegfa, Igf1 and Ctgf gene expressions
might indicate a favorable influence of teduglutide on the intestinal anastomotic healing. Introducción: teduglutida es un análogo intestinotrófico do péptido-2 similar al glucagón, con un mecanismo de acción indirecto y poco conocido, aprobado para la rehabilitación del síndrome de intestino corto. Este estudio propone analizar la respuesta de los factores de crecimiento tisulares a la agresión quirúrgica y a la administración de teduglutida en un modelo animal de anastomosis intestinal. Métodos: ratones Wistar (n = 59) fueron distribuidos en cuatro grupos: "resección ileal" o "laparotomía", cada uno subdividido en "administración post-operatoria de teduglutida" o "sin tratamiento"; y sacrificados en el tercero o el séptimo día, con recogida de muestras ileales. La expresión génica de Igf1, Vegfa, Tgfβ1, Ctgf, Fgf2, Fgf7, Egf, Hbegf, Pdgfb y Glp2r fue analizada por qRT-PCR. Resultados: en el segmento perianastomótico se verificó una sobrerregulación de Fgf7, Fgf2, Egf, Vegfa y Glp2r al tercer día y de Pdg al séptimo día. La administración de teduglutida se asoció con mayor cambio de la expresión génica relativa de Vegfa (3.6 ± 1.3 vs. 1.9 ± 2.0, p = 0.0001), Hbegf (2.2 ± 2.3 vs. 1.1 ± 0.9, p = 0.001), Igf1 (1.6 ± 7.6 vs. 0.9 ± 0.7, p = 0.002) y Ctgf (1.1 ± 2.1 vs. 0.6 ± 2.0, p = 0.013); y menor cambio de Tgfβ1, Fgf7 y Glp2r. Conclusiones: estos resultados refuerzan el reconocido papel de Igf1 y Hbegf como mediadores moleculares de los efectos de la teduglutida y sugieren que otros factores humorales, como Vegf y Ctgf, también pueden ser relevantes en el contexto perioperatorio. La inducción de las expresiones de los genes Vegfa, Igf1 y Ctgf podría indicar una influencia favorable de teduglutida en la cicatrización anastomótica intestinal. |
URI: | https://hdl.handle.net/10316/108205 | ISSN: | 1699-5198 0212-1611 |
DOI: | 10.20960/nh.1326 | Rights: | openAccess |
Appears in Collections: | I&D CNC - Artigos em Revistas Internacionais FMUC Medicina - Artigos em Revistas Internacionais |
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Tissular growth factors profile after teduglutide administration on an animal model.pdf | 1.18 MB | Adobe PDF | View/Open |
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