Abstract:
:Cilia/flagella are evolutionarily conserved cellular organelles. In this study, we demonstrated that Dunaliella salina Peroxiredoxin 1 (DsPrdx1) localized to the flagella and basal bodies, and was involved in flagellar disassembly. The link between DsPrdx1 and flagella of Dunaliella salina (D. salina) encouraged us to explore the function of its human homologue, Homo sapiens Peroxiredoxin 1 (HsPrdx1) in development and physiology. Our results showed that HsPrdx1 was overexpressed, and cilia were lost in esophageal squamous cell carcinoma (ESCC) cells compared with the non-cancerous esophageal epithelial cells Het-1A. Furthermore, when HsPrdx1 was knocked down by short hairpin RNA (shRNA) lentivirus in ESCC cells, the phenotype of cilia lost can be reversed, and the expression levels of tumor suppressor genes LKB1 and p-AMPK were increased, and the activity of the oncogene Aurora A was inhibited compared with those in cells transfected with scrambe-shRNA lentivirus. These findings firstly showed that Prdx1 is involved in disassembly of flagella and cilia, and suggested that the abnormal expression of the cilia-related gene including Prdx1 may affect both ciliogenesis and cancernogenesis.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Gong F,Liu H,Li J,Xue L,Zhang Mdoi
10.1016/j.bbrc.2014.01.081subject
Has Abstractpub_date
2014-02-14 00:00:00pages
420-6issue
3eissn
0006-291Xissn
1090-2104pii
S0006-291X(14)00105-3journal_volume
444pub_type
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