Preliminary study of TRPV4 affects chondrocyte degeneration / 中国骨伤
China Journal of Orthopaedics and Traumatology
;
(12): 990-995, 2023.
Artículo
en Chino
| WPRIM
| ID: wpr-1009173
ABSTRACT
OBJECTIVE@#To explore and verify that transient receptor potential vanilloid 4(TRPV4) affects chondrocyte degeneration.@*METHODS@#Neonatal SD rats were selected, primary chondrocytes were extracted, and identified by toluidine blue staining and alcian blue staining;an in vitro chondrocyte inflammation model was constructed by IL-1β, and TRPV4 inhibitor was used to treat chondrocytes under inflammatory conditions, and the chondrocytes were treated by RT-PCR method was used to detect matrix metallopeptidase 13(MMP-13), a disintegrin and metalloproteinase with thrombospondin 5, (ADAMTS-5)、nitric oxide synthase 2(NOS2)、Collagen, type II alpha 1(Col2α1)and aggrecan (Acan) mRNA in chondrocytes; primary chondrocytes were treated with different concentrations of TRPV4 overexpression plasmid, and the optimal overexpression dose was screened. The mRNA expressions of TRPV4, MMP-13, ADAMTS-5, NOS2, Col2α1 and Acan in chondrocytes under the optimal TRPV4 overexpression dose were detected.@*RESULTS@#Toluidine blue staining and Alcian blue staining identified the extracted cells as primary chondrocytes;RT-PCR showed that TRPV4, MMP-13, ADAMTS-5, NOS2 mRNA in chondrocytes treated with TRPV4 inhibitor under inflammatory conditions. The expression of Col2α1 mRNA was significantly decreased (P<0.05), and the expression of Col2α1 mRNA was increased (P<0.05). Although there was no significant difference in the expression of Acan mRNA, the overall trend was also increasing. The expression of Col2α1 and Acan mRNA in chondrocytes was significantly decreased (P<0.05), and the expression of NOS2 mRNA was increased(P<0.05), but there was no significant difference in MMP-13 and ADAMTS-5 (P>0.05).@*CONCLUSION@#Inhibiting the expression of TRPV4 can down-regulate the expression of genes related to chondrocyte degeneration.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
ARN Mensajero
/
Cartílago Articular
/
Células Cultivadas
/
Ratas Sprague-Dawley
/
Condrocitos
/
Canales Catiónicos TRPV
/
Metaloproteinasa 13 de la Matriz
/
Agrecanos
/
Interleucina-1beta
Límite:
Animales
Idioma:
Chino
Revista:
China Journal of Orthopaedics and Traumatology
Año:
2023
Tipo del documento:
Artículo
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