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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Nat+Immunol
2016 ; 17
(5
): 495-504
Nephropedia Template TP
gab.com Text
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English Wikipedia
DNA polymerase-? regulates the activation of type I interferons through cytosolic
RNA:DNA synthesis
#MMPMID27019227
Starokadomskyy P
; Gemelli T
; Rios JJ
; Xing C
; Wang RC
; Li H
; Pokatayev V
; Dozmorov I
; Khan S
; Miyata N
; Fraile G
; Raj P
; Xu Z
; Xu Z
; Ma L
; Lin Z
; Wang H
; Yang Y
; Ben-Amitai D
; Orenstein N
; Mussaffi H
; Baselga E
; Tadini G
; Grunebaum E
; Sarajlija A
; Krzewski K
; Wakeland EK
; Yan N
; de la Morena MT
; Zinn AR
; Burstein E
Nat Immunol
2016[May]; 17
(5
): 495-504
PMID27019227
show ga
Aberrant nucleic acids generated during viral replication are the main trigger
for antiviral immunity, and mutations that disrupt nucleic acid metabolism can
lead to autoinflammatory disorders. Here we investigated the etiology of X-linked
reticulate pigmentary disorder (XLPDR), a primary immunodeficiency with
autoinflammatory features. We discovered that XLPDR is caused by an intronic
mutation that disrupts the expression of POLA1, which encodes the catalytic
subunit of DNA polymerase-?. Unexpectedly, POLA1 deficiency resulted in increased
production of type I interferons. This enzyme is necessary for the synthesis of
RNA:DNA primers during DNA replication and, strikingly, we found that POLA1 is
also required for the synthesis of cytosolic RNA:DNA, which directly modulates
interferon activation. Together this work identifies POLA1 as a critical
regulator of the type I interferon response.