Class 3 semaphorins modulate the invasive capacity of rheumatoid arthritis fibroblast-like synoviocytes

Rheumatology
Man Wai TangSamuel García

Abstract

Class 3 semaphorins regulate diverse cellular processes relevant to the pathology of RA, including immune modulation, angiogenesis, apoptosis and invasive cell migration. Therefore, we analysed the potential role of class 3 semaphorins in the pathology of RA. Protein and mRNA expression in RA synovial tissue, SF and fibroblast-like synoviocytes (FLS) were determined by immunoblotting and quantitative PCR (qPCR). RA FLS migration and invasion were determined using wound closure and transwell invasion assays, respectively. PlexinA1, neuropilin-1 and neuropilin-2 expression was knocked down using small interfering RNA (siRNA). Activation of FLS intracellular signalling pathways was assessed by immunoblotting. mRNA expression of semaphorins (Sema)3B, Sema3C, Sema3F and Sema3G was significantly lower in the synovial tissue of early arthritis patients at baseline who developed persistent disease compared with patients with self-limiting disease after 2 years follow-up. Sema3B and Sema3F expression was significantly lower in arthritis patients fulfilling classification criteria for RA compared with those who did not. FLS expression of Sema3A was induced after stimulation with TNF, IL-1β or lipopolysaccharides (LPS), while Sema3B and S...Continue Reading

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Citations

Jan 19, 2019·International Journal of Molecular Sciences·Samuel Garcia
Jun 20, 2019·Current Pharmaceutical Biotechnology·Konrad DziobekDariusz Boroń
Feb 6, 2021·Biomedicine & Pharmacotherapy = Biomédecine & Pharmacothérapie·Bo JiaoHui Xu
Feb 7, 2021·Auto- Immunity Highlights·Mohammad Javad MousaviMahdi Mahmoudi
Mar 23, 2021·Journal of Oral Biology and Craniofacial Research·Diego PrietoAlejandra Chaparro
Feb 20, 2021·Arthritis & Rheumatology·Jérôme AvouacYannick Allanore

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