Developmental regulation of the hepatic acute phase response.

Developmental regulation of the hepatic acute phase response.
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肝脏急性期反应的发育调节。

DOI:
10.1152/ajpcell.1991.261.3.c461
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发表时间:
1991
期刊:
The American journal of physiology
影响因子:
--
通讯作者:
Berry,SA
Berry,SA
中科院分区:
--
文献类型:
--
作者:
Schwarzenberg,SJ;Potter,CJ;Berry,SA

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为了评价急性期反应的个体发育调控,在不同出生后年龄的Fischer大鼠窝中诱导炎症。注射后24小时,在肝脏中测量四种同源大鼠肝丝氨酸蛋白酶抑制剂(Spi 2.1,Spi 2.2,Spi 2.3和α 1-抗胰蛋白酶)mRNA。动物在所有年龄段都出现了阳性和阴性急性期反应,但年幼动物的反应减弱,在第7-19天达到成年水平。α 1-抗胰蛋白酶mRNA没有反应,Spi 2.2 mRNA在第3天和第7天有50%的上升。Spi 2.1和2.3 mRNA,阴性急性期反应物,显示成年对幼年动物炎症反应的衰减为33%(Spi 2.1)和40%(Spi 2.3)。在垂体切除的动物中,Spi 2.2,2.3和α 1-抗胰蛋白酶mRNA的反应后,turtectin刺激是类似的正常动物,而Spi 2.1 mRNA没有改变。总之,幼年动物对组织损伤的反应迟钝;多种因素可能参与了完全成年反应的发展。垂体的不成熟可能在幼年动物炎症过程中抑制Spi 2.1 mRNA的反应中起作用。这些高度进化相关的基因将有助于识别炎症和发育中调控基因表达的特定因子。
For evaluation of the ontogenetic regulation of the acute phase response, inflammation was induced in Fischer rat litters at different postnatal ages. Four homologous rat hepatic serine protease inhibitor (Spi 2.1, Spi 2.2, Spi 2.3, and alpha 1-antitrypsin) mRNAs were measured in livers 24 h after injection. Animals mounted both positive and negative acute phase responses at all ages, but responses were blunted in young animals, reaching adult levels by days 7-19. alpha 1-Antitrypsin mRNA had no response, and Spi 2.2 mRNA had 50% the rise seen in adults on days 3 and 7. Spi 2.1 and 2.3 mRNAs, negative acute phase reactants, showed attenuation of adult response to inflammation in infant animals of 33% (Spi 2.1) and 40% (Spi 2.3). In hypophysectomized animals, the responses of Spi 2.2, 2.3, and alpha 1-antitrypsin mRNAs after turpentine stimulation were similar to that of normal animals, whereas Spi 2.1 mRNA did not change. In conclusion, infant animals mount a blunted response to tissue injury; multiple factors may be involved in the development of the full adult response. Immaturity of the pituitary may play a role in the suppression of Spi 2.1 mRNA's response during inflammation in infant animals. These highly evolutionary related genes will be helpful in identifying specific factors regulating gene expression in inflammation and development.
生长激素在大鼠肝脏中诱导丝氨酸蛋白酶抑制剂基因家族的两种 mRNA。
DOI: --
发表时间: 1987
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影响因子: --
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DOI: 10.1159/000241268
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影响因子: --
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