Abstract
Interleukin(IL)-2 and inflammation regulate effector and memory cytolytic T-lymphocyte (CTL) generation during infection. We demonstrate a complex interplay between IL-2 and inflammatory signals during CTL differentiation. IL-2 stimulation induced the transcription factor eomesodermin (Eomes), upregulated perforin (Prf1) transcription, and repressed re-expression of memory CTL markers Bcl6 and IL-7Rα. Binding of Eomes and STAT5 to Prf1 cis-regulatory regions correlated with transcriptional initiation (increased recruitment of RNA polymerase II to the Prf1 promoter). Inflammation (CpG, IL-12) enhanced expression of IL-2Rα and the transcription factor T-bet, but countered late Eomes and perforin induction while preventing IL-7Rα repression by IL-2. After infection of mice with lymphocytic choriomeningitis virus, IL-2Rα-deficient effector CD8+ T cells expressed more Bcl6 but less perforin and granzyme B, formed fewer KLRG-1+ and T-bet-expressing CTL, and killed poorly. Thus, inflammation influences both effector and memory CTL differentiation, whereas persistent IL-2 stimulation promotes effector at the expense of memory CTL development.
| Original language | English |
|---|---|
| Pages (from-to) | 79-90 |
| Number of pages | 12 |
| Journal | Immunity |
| Volume | 32 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 29 2010 |
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Keywords
- CELLIMMUNO
- MOLIMMUNO
ASJC Scopus subject areas
- Immunology and Allergy
- Infectious Diseases
- Immunology
Cite this
Interleukin-2 and Inflammation Induce Distinct Transcriptional Programs that Promote the Differentiation of Effector Cytolytic T Cells. / Pipkin, Matthew E.; Sacks, Jilian A.; Cruz-Guilloty, Fernando; Lichtenheld, Mathias G; Bevan, Michael J.; Rao, Anjana.
In: Immunity, Vol. 32, No. 1, 29.01.2010, p. 79-90.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Interleukin-2 and Inflammation Induce Distinct Transcriptional Programs that Promote the Differentiation of Effector Cytolytic T Cells
AU - Pipkin, Matthew E.
AU - Sacks, Jilian A.
AU - Cruz-Guilloty, Fernando
AU - Lichtenheld, Mathias G
AU - Bevan, Michael J.
AU - Rao, Anjana
PY - 2010/1/29
Y1 - 2010/1/29
N2 - Interleukin(IL)-2 and inflammation regulate effector and memory cytolytic T-lymphocyte (CTL) generation during infection. We demonstrate a complex interplay between IL-2 and inflammatory signals during CTL differentiation. IL-2 stimulation induced the transcription factor eomesodermin (Eomes), upregulated perforin (Prf1) transcription, and repressed re-expression of memory CTL markers Bcl6 and IL-7Rα. Binding of Eomes and STAT5 to Prf1 cis-regulatory regions correlated with transcriptional initiation (increased recruitment of RNA polymerase II to the Prf1 promoter). Inflammation (CpG, IL-12) enhanced expression of IL-2Rα and the transcription factor T-bet, but countered late Eomes and perforin induction while preventing IL-7Rα repression by IL-2. After infection of mice with lymphocytic choriomeningitis virus, IL-2Rα-deficient effector CD8+ T cells expressed more Bcl6 but less perforin and granzyme B, formed fewer KLRG-1+ and T-bet-expressing CTL, and killed poorly. Thus, inflammation influences both effector and memory CTL differentiation, whereas persistent IL-2 stimulation promotes effector at the expense of memory CTL development.
AB - Interleukin(IL)-2 and inflammation regulate effector and memory cytolytic T-lymphocyte (CTL) generation during infection. We demonstrate a complex interplay between IL-2 and inflammatory signals during CTL differentiation. IL-2 stimulation induced the transcription factor eomesodermin (Eomes), upregulated perforin (Prf1) transcription, and repressed re-expression of memory CTL markers Bcl6 and IL-7Rα. Binding of Eomes and STAT5 to Prf1 cis-regulatory regions correlated with transcriptional initiation (increased recruitment of RNA polymerase II to the Prf1 promoter). Inflammation (CpG, IL-12) enhanced expression of IL-2Rα and the transcription factor T-bet, but countered late Eomes and perforin induction while preventing IL-7Rα repression by IL-2. After infection of mice with lymphocytic choriomeningitis virus, IL-2Rα-deficient effector CD8+ T cells expressed more Bcl6 but less perforin and granzyme B, formed fewer KLRG-1+ and T-bet-expressing CTL, and killed poorly. Thus, inflammation influences both effector and memory CTL differentiation, whereas persistent IL-2 stimulation promotes effector at the expense of memory CTL development.
KW - CELLIMMUNO
KW - MOLIMMUNO
UR - http://www.scopus.com/inward/record.url?scp=74549216531&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=74549216531&partnerID=8YFLogxK
U2 - 10.1016/j.immuni.2009.11.012
DO - 10.1016/j.immuni.2009.11.012
M3 - Article
VL - 32
SP - 79
EP - 90
JO - Immunity
JF - Immunity
SN - 1074-7613
IS - 1
ER -