Protective effect of adenosine A2A receptor activation in small‐for‐size liver transplantation

Protective effect of adenosine A2A receptor activation in small‐for‐size liver transplantation
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腺苷A2A受体激活对小体积肝移植的保护作用

DOI:
10.1111/j.1432-2277.2006.00394.x
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发表时间:
2007
影响因子:
3.1
通讯作者:
Xuehao Wang
Xuehao Wang
中科院分区:
医学3区
文献类型:
--
作者:
Li;Yan;Ke Wang;Liyong Pu;Feng Zhang;Xiang;L. Kong;Bei;Guo;Xuehao Wang

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本研究的目的是探讨腺苷 A2A 受体 (A2AR) 激活在小型肝移植中的潜在作用。采用40%(范围:36-46%)肝移植物进行大鼠原位肝移植模型。再灌注 3  小时后立即给予受者生理盐水(对照组)或 CGS 21680(2-p-(2-羧乙基)苯乙氨基-5'-N-乙基羧酰胺腺苷盐酸盐,一种选择性 A2AR 激动剂),或 CGS 21680+ ZM 241385(一种选择性 A2AR 拮抗剂)。与对照组相比,低剂量(0.05 μg/kg/min)和高剂量(0.5 μg/kg/min)使用CGS 21680使存活率分别从16.7%(2/12)增加到83.3%(10/12)和66.7%(8/12)。这些作用与改善肝功能和保留肝脏结构相关。 CGS 21680 有效减少中性粒细胞浸润,抑制促炎细胞因子(TNF-α、IL-1β 和 IL-6)表达,促进抗凋亡分子表达,并抑制细胞凋亡。当与 ZM 241385 联合给药时,可以防止 CGS 21680 的作用。总之,本研究表明 A2AR 激活可减轻门静脉高压,抑制炎症反应,减少细胞凋亡,并增强小型肝移植物的存活率。我们的研究结果为使用 A2AR 激活来最大限度地提高小型肝移植的可用性的新型治疗方法提供了理论依据。
The aim of the present study was to investigate the potential role of adenosine A2A receptor (A2AR) activation in small‐for‐size liver transplantation. A rat orthotopic liver transplantation model was performed by using 40% (range: 36–46%) liver grafts. Recipients were given either saline (control group) or CGS 21680 (2‐p‐(2‐Carboxyethyl)phenethylamino‐5′‐N‐ethylcarboxamidoadenosine hydrochloride, a selective A2AR agonist), or CGS 21680+ ZM 241385 (a selective A2AR antagonist) immediately after reperfusion for 3 h. Compared with control group, CGS 21680 used at both low dose (0.05 μg/kg/min) and high dose (0.5 μg/kg/min) increased the survival rate from 16.7% (2/12) to 83.3% (10/12) and 66.7% (8/12), respectively. These effects correlated with improved liver function and preserved hepatic architecture. CGS 21680 effectively decreased neutrophil infiltration, suppressed pro‐inflammatory (TNF‐α, IL‐1β and IL‐6) expression, promoted expression of antiapoptotic molecules, and inhibited apoptosis. The effects of CGS 21680 were prevented when ZM 241385 was co‐administrated. In conclusion, the present study showed that A2AR activation alleviated portal hypertension, suppressed inflammatory response, reduced apoptosis, and potentiated the survival of small‐for‐size liver grafts. Our findings provide the rationale for a novel therapeutic approach using A2AR activation to maximize the availability of small‐for‐size liver grafts.
DOI: 10.1172/jci15483
发表时间: 2003-09
期刊: The Journal of clinical investigation
影响因子: --
作者:
Y. Day;Liping Huang;M. Mcduffie;D. Rosin;H. Ye;Jiang-fan Chen;M. Schwarzschild;J. Fink;J. Linden;M. Okusa
通讯作者: Y. Day;Liping Huang;M. Mcduffie;D. Rosin;H. Ye;Jiang-fan Chen;M. Schwarzschild;J. Fink;J. Linden;M. Okusa
DOI: 10.1152/ajprenal.2000.279.5.f809
发表时间: 2000-11-01
影响因子: 4.2
作者:
Okusa, MD;Linden, J;Huynh, LP
通讯作者: Huynh, LP
腺苷 A(2a) 激动剂 CGS-21680 对梗塞和顿挫猪心肌的有益作用。
DOI: 10.1152/ajpheart.2001.280.4.h1660
发表时间: 2001
期刊: American journal of physiology. Heart and circulatory physiology
影响因子: --
作者:
Lasley,RD;Jahania,MS;MentzerJr,RM
通讯作者: MentzerJr,RM
DOI: 10.1152/ajpheart.2001.281.1.h67
发表时间: 2001-07-01
影响因子: 4.8
作者:
Peirce, SM;Skalak, TC;Linden, J
通讯作者: Linden, J
DOI: --
发表时间: 2001-12
影响因子: 21.1
作者:
B. Fredholm;A. IJzerman;K. Jacobson;K. Klotz;J. Linden
通讯作者: B. Fredholm;A. IJzerman;K. Jacobson;K. Klotz;J. Linden