Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=25344473
&cmd=llinks): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests
in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 215
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 243.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 243.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 243.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 243.2 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\25344473
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 J+Immunol
2014 ; 193
(11
): 5534-44
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
T cell-B cell thymic cross-talk: maintenance and function of thymic B cells
requires cognate CD40-CD40 ligand interaction
#MMPMID25344473
Fujihara C
; Williams JA
; Watanabe M
; Jeon H
; Sharrow SO
; Hodes RJ
J Immunol
2014[Dec]; 193
(11
): 5534-44
PMID25344473
show ga
Thymic development requires bidirectional interaction or cross-talk between
developing T cells and thymic stromal cells, a relationship that has been best
characterized for the interaction between thymocytes and thymic epithelial cells.
We have characterized in this article the requirement for similar cross-talk in
the maintenance and function of thymic B cells, another population that plays a
role in selection of developing thymic T cells. We found that maintenance of
thymic B cells is strongly dependent on the presence of mature single-positive
thymocytes and on the interactions of these T cells with specific Ag ligand.
Maintenance of thymic B cell number is strongly dependent on B cell-autonomous
expression of CD40, but not MHC class II, indicating that direct engagement of
CD40 on thymic B cells is necessary to support their maintenance and
proliferation. Thymic B cells can mediate negative selection of
superantigen-specific, self-reactive, single-positive thymocytes, and we show
that CD40 expression on B cells is critical for this negative selection.
Cross-talk with thymic T cells is thus required to support the thymic B cell
population through a pathway that requires cell-autonomous expression of CD40,
and that reciprocally functions in negative selection of autoreactive T cells.