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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2007.1
- 수록면
- 129 - 138 (10page)
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9-cis-retinoic acid (9CRA) plays an important role in the immune respon se; this includes cytokine pro-duction and cell migration. We have previously de-monstrated that 9CRA increases expression of che-mokine receptors CCR1 and CCR2 in human mono-cytes. To better understand how 9CRA induces CCR1 and CCR2 expression, we examined the contribution of signaling proteins in human monocytic THP-1 cells. The mRNA and surface protein up-regulation of CCR1 and CCR2 in 9CRA-stimulated cells were weakly blocked by the pretreatment of SB202190, a p38 MAPK inhibitor, and PD98059, an upstream ERK inhibitor. Activation of p38 MAPK and ERK1/2 was induced in both a time and dose-dependent manner after 9CRA stimulation. Both p38 MAPK and ERK1/2 phosphorylation peaked at 2 h after a 100 nM 9CRA treatment. 9CRA increased calcium influx and chemotactic activity in response to CCR1-dependent chemokines, Lkn-1/CL15, MIP-1α/CCL3, and RANTES/ CCL5, and the CCR2-specific chemokine, MCP-1/ CL2. Both SB202190 and PD98059 pretreatment diminished the increased calcium mobilization and chemotactic ability due to 9CRA. SB202190 inhibited the expresion and functional activities of CCR1 and CCR2 more effectively than did PD98059. Therefore, our results demonstrate that 9CRA transduces the signal through p38 MAPK and ERK1/2 for CCR1 and CCR2 up-regulation, and may regulate the pro-inflam -matory process through the p38 MAPK and ERK- dependent signaling pathways.
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참고문헌 (22)
참고문헌 신청
Antonyak MA / 2003 / Activation of the Ras-ERK pathway inhibits retinoic acid-induced stimulation of tissue transglutaminase ex-pression in NIH3T3 cells 278 : 15859 ~ 15866
Ashida N / 2001 / Distinct signaling path-ways for MCP-1-dependent integrin activation and chemo-taxis 276 : 16555 ~ 16560
Baggiolini M / 1997 / Human chemokines: an update 15 : 675 ~ 705
Bost F / 2002 / Retinoic acid activation of the ERK pathway is re-quired for embryonic stem cell commitment into the adipocyte lineage 361 : 621 ~ 627
Cambien B / 2001 / Signal transduction involved in MCP-1-mediated monocytic transendothelial migration 97 : 359 ~ 366
Ashida N / 2001 / Distinct signaling path-ways for MCP-1-dependent integrin activation and chemo-taxis 276 : 16555 ~ 16560
Baggiolini M / 1997 / Human chemokines: an update 15 : 675 ~ 705
Bost F / 2002 / Retinoic acid activation of the ERK pathway is re-quired for embryonic stem cell commitment into the adipocyte lineage 361 : 621 ~ 627
Cambien B / 2001 / Signal transduction involved in MCP-1-mediated monocytic transendothelial migration 97 : 359 ~ 366
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