Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 235.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 269.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 269.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 269.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\19782007
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 DNA+Repair+(Amst)
2009 ; 8
(11
): 1328-32
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Deficiency of the oxidative damage-specific DNA glycosylase NEIL1 leads to
reduced germinal center B cell expansion
#MMPMID19782007
Mori H
; Ouchida R
; Hijikata A
; Kitamura H
; Ohara O
; Li Y
; Gao X
; Yasui A
; Lloyd RS
; Wang JY
DNA Repair (Amst)
2009[Nov]; 8
(11
): 1328-32
PMID19782007
show ga
Mammalian cells possess multiple DNA glycosylases, including OGG1, NTH1, NEIL1,
NEIL2 and NEIL3, for the repair of oxidative DNA damage. Among these, NEIL1 and
NEIL2 are able to excise oxidized bases on single stranded or bubble-structured
DNA and has been implicated in repair of oxidative damage associated with DNA
replication or transcription. We found that Neil1 was highly constitutively
expressed in the germinal center (GC) B cells, a rapidly dividing cell population
that is undergoing immunoglobulin (Ig) gene hypermutation and isotype switching.
While Neil1(-/-) mice exhibited normal B and T cell development and maturation,
these mice contained a significantly lower frequency of GC B cells than did WT
mice after immunization with a T-dependent antigen. Consistent with the reduced
expansion of GC B cells, Neil1(-/-) mice had a decreased frequency of Ig gene
hypermutation and produced less antibody against a T-dependent antigen during
both primary and secondary immune responses. These results suggest that repair of
endogenous oxidative DNA damage by NEIL1 is important for the rapid expansion of
GC B cells and efficient induction of humoral immune responses.