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Lis-López L, Bauset C, Seco-Cervera M, Macias-Ceja D, Navarro F, Álvarez Á, Esplugues JV, Calatayud S, Barrachina MD, Ortiz-Masià D, Cosín-Roger J. P2X7 Receptor Regulates Collagen Expression in Human Intestinal Fibroblasts: Relevance in Intestinal Fibrosis. Int J Mol Sci 2023; 24:12936. [PMID: 37629116 PMCID: PMC10454509 DOI: 10.3390/ijms241612936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 08/15/2023] [Accepted: 08/16/2023] [Indexed: 08/27/2023] Open
Abstract
Intestinal fibrosis is a common complication that affects more than 50% of Crohn´s Disease (CD) patients. There is no pharmacological treatment against this complication, with surgery being the only option. Due to the unknown role of P2X7 in intestinal fibrosis, we aim to analyze the relevance of this receptor in CD complications. Surgical resections from CD and non-Inflammatory Bowel Disease (IBD) patients were obtained. Intestinal fibrosis was induced with two different murine models: heterotopic transplant model and chronic-DSS colitis in wild-type and P2X7-/- mice. Human small intestine fibroblasts (HSIFs) were transfected with an siRNA against P2X7 and treated with TGF-β. A gene and protein expression of P2X7 receptor was significantly increased in CD compared to non-IBD patients. The lack of P2X7 in mice provoked an enhanced collagen deposition and increased expression of several profibrotic markers in both murine models of intestinal fibrosis. Furthermore, P2X7-/- mice exhibited a higher expression of proinflammatory cytokines and a lower expression of M2 macrophage markers. Moreover, the transient silencing of the P2X7 receptor in HSIFs significantly induced the expression of Col1a1 and potentiated the expression of Col4 and Col5a1 after TGF-β treatment. P2X7 regulates collagen expression in human intestinal fibroblasts, while the lack of this receptor aggravates intestinal fibrosis.
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Affiliation(s)
- Lluis Lis-López
- Departamento de Farmacología, Facultad de Medicina, Universidad de Valencia, 46010 Valencia, Spain; (L.L.-L.); (C.B.); (D.M.-C.); (Á.Á.); (J.V.E.); (S.C.); (M.D.B.)
| | - Cristina Bauset
- Departamento de Farmacología, Facultad de Medicina, Universidad de Valencia, 46010 Valencia, Spain; (L.L.-L.); (C.B.); (D.M.-C.); (Á.Á.); (J.V.E.); (S.C.); (M.D.B.)
| | - Marta Seco-Cervera
- FISABIO (Fundación para el Fomento de la Investigación Sanitaria y Biomédica), Hospital Dr. Peset, 46017 Valencia, Spain;
| | - Dulce Macias-Ceja
- Departamento de Farmacología, Facultad de Medicina, Universidad de Valencia, 46010 Valencia, Spain; (L.L.-L.); (C.B.); (D.M.-C.); (Á.Á.); (J.V.E.); (S.C.); (M.D.B.)
| | - Francisco Navarro
- Servicio Cirugía y Coloproctología, Hospital de Manises, 46940 Valencia, Spain;
| | - Ángeles Álvarez
- Departamento de Farmacología, Facultad de Medicina, Universidad de Valencia, 46010 Valencia, Spain; (L.L.-L.); (C.B.); (D.M.-C.); (Á.Á.); (J.V.E.); (S.C.); (M.D.B.)
- CIBERehd (Centro de Investigaciones en Red Enfermedad Hepática y Digestiva), 28029 Madrid, Spain
| | - Juan Vicente Esplugues
- Departamento de Farmacología, Facultad de Medicina, Universidad de Valencia, 46010 Valencia, Spain; (L.L.-L.); (C.B.); (D.M.-C.); (Á.Á.); (J.V.E.); (S.C.); (M.D.B.)
- CIBERehd (Centro de Investigaciones en Red Enfermedad Hepática y Digestiva), 28029 Madrid, Spain
| | - Sara Calatayud
- Departamento de Farmacología, Facultad de Medicina, Universidad de Valencia, 46010 Valencia, Spain; (L.L.-L.); (C.B.); (D.M.-C.); (Á.Á.); (J.V.E.); (S.C.); (M.D.B.)
- CIBERehd (Centro de Investigaciones en Red Enfermedad Hepática y Digestiva), 28029 Madrid, Spain
| | - Maria Dolores Barrachina
- Departamento de Farmacología, Facultad de Medicina, Universidad de Valencia, 46010 Valencia, Spain; (L.L.-L.); (C.B.); (D.M.-C.); (Á.Á.); (J.V.E.); (S.C.); (M.D.B.)
- CIBERehd (Centro de Investigaciones en Red Enfermedad Hepática y Digestiva), 28029 Madrid, Spain
| | - Dolores Ortiz-Masià
- CIBERehd (Centro de Investigaciones en Red Enfermedad Hepática y Digestiva), 28029 Madrid, Spain
- Departamento de Medicina, Facultad de Medicina, Universidad de Valencia, 46010 Valencia, Spain;
| | - Jesús Cosín-Roger
- Departamento de Farmacología, Facultad de Medicina, Universidad de Valencia, 46010 Valencia, Spain; (L.L.-L.); (C.B.); (D.M.-C.); (Á.Á.); (J.V.E.); (S.C.); (M.D.B.)
- CIBERehd (Centro de Investigaciones en Red Enfermedad Hepática y Digestiva), 28029 Madrid, Spain
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