Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=26472085
&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 229.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 229.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 229.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 229.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 229.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 229.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 263.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 263.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 263.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 263.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 263.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 263.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 296.79999999999995 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 296.79999999999995 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 296.79999999999995 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\26472085
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Sci+Rep
2015 ; 5
(ä): 15218
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Alloreactive CD154-expressing T-cell subsets with differential sensitivity to the
immunosuppressant, belatacept: potential targets of novel belatacept-based
regimens
#MMPMID26472085
Ashokkumar C
; Ganguly B
; Townsend R
; White J
; Levy S
; Moritz M
; Mazariegos G
; Sun Q
; Sindhi R
Sci Rep
2015[Oct]; 5
(ä): 15218
PMID26472085
show ga
Belatacept blocks CD28-mediated T-cell costimulation and prevents renal
transplant rejection. Understanding T-cell subset sensitivity to belatacept may
identify cellular markers for immunosuppression failure to better guide treatment
selection. Here, we evaluate the belatacept sensitivity of allo-antigen-specific
CD154-expressing-T-cells, whose T-cytotoxic memory (TcM) subset predicts
rejection with high sensitivity after non-renal transplantation. The belatacept
concentration associated with half-maximal reduction (EC50) of CD154 expression
was calculated for 36 T-cell subsets defined by combinations of T-helper (Th),
Tc, T-memory and CD28 receptors, following allostimulation of peripheral blood
leukocytes from 20 normal healthy subjects. Subsets were ranked by median EC50,
and by whether subset EC50 was correlated with and therefore could be represented
by the frequency of other subsets. No single subset frequency emerged as the
significant correlate of EC50 for a given subset. Most (n?=?25) T-cell subsets
were sensitive to belatacept. Less sensitive subsets demonstrated a memory
phenotype and absence of CD28 receptor. Potential drug-resistance markers for
future validation include the low frequency highly differentiated,
Th-memory-CD28-negative T-cells with the highest median EC50, and the least
differentiated, high-frequency Tc subset, with the most CD28-negative T-cells,
the third highest median EC50, and significant correlations with frequencies of
the highest number of CD28-negative and memory subsets.
|Abatacept/*pharmacology/therapeutic use
[MESH]
|CD28 Antigens/metabolism
[MESH]
|CD40 Ligand/*metabolism
[MESH]
|Cluster Analysis
[MESH]
|Graft Rejection/prevention & control
[MESH]
|Humans
[MESH]
|Immunosuppressive Agents/*pharmacology/therapeutic use
[MESH]