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2015 ; 8
(3
): 2737-45
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Involvement of Notch1/Hes signaling pathway in ankylosing spondylitis
#MMPMID26045779
Xu W
; Liang CG
; Li YF
; Ji YH
; Qiu WJ
; Tang XZ
Int J Clin Exp Pathol
2015[]; 8
(3
): 2737-45
PMID26045779
show ga
We aimed to investigate the role of Notch1/Hes signaling pathway in the
pathogenesis of abnormal ossification of hip ligament in patients with ankylosing
spondylitis (AS). 22 AS patients scheduled for artificial hip arthroplasty were
randomly chosen as AS group. As controls, we used 4 patients diagnosed with
transcervical fracture who underwent hip replacement surgery. Notch1 and Hes mRNA
expressions were detected by real-time fluorescent quantitative polymerase chain
reaction (RFQ-PCR). Immunohistochemistry (IHC) was used to detect Notch1 and Hes
protein expression. Correlation analyses of Notch-l and Hes with AS-related
clinical factors were conducted with spearman's correlation analysis and partial
correlation analysis. RFQ-PCR results showed significant differences in Notch1
and Hes mRNA expressions between AS group and the control group (all P<0.05). IHC
analysis further indicated positive nuclear signals of Notch1 and Hes protein,
indicating functional activation of the Notch1 and Hes pathways.
Semi-quantitative IHC showed a higher Notch1 and Hes expression levels in AS
group compared to the control group (all P<0.05). Correlation analysis suggested
that Hes protein expression was positively associated with the clinical course of
the disease in AS patients. In conclusion, Notch1 and Hes overexpression was
clearly detected in hip joint ligaments of AS patients, Hes protein expression
was associated with the clinical course of AS. Taken together, we suggest that
signaling pathways mediated by Notch1-Hes may contribute to ligament ossification
of hip joints in AS patients.