Retinoic acid inhibition of hyaluronate synthesis in cultured human skin fibroblasts.

Retinoic acid inhibition of hyaluronate synthesis in cultured human skin fibroblasts.
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视黄酸抑制培养的人皮肤成纤维细胞中透明质酸的合成。

DOI:
10.1210/jcem-70-3-655
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发表时间:
1990
期刊:
The Journal of clinical endocrinology and metabolism
影响因子:
--
通讯作者:
T. Smith
T. Smith
中科院分区:
--
文献类型:
--
作者:
T. Smith

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研究了全反式维甲酸对培养的原代人皮肤成纤维细胞中糖胺聚糖(GAG)积累的影响。经维甲酸处理的融合培养物比未加维甲酸的培养物积累的[3H]GAG更少,这种效应的表观阈值为10 nM,在测试的浓度范围(0-10微米)内呈剂量依赖性。在10微米时,抑制率为54%。标记的大分子材料中有80%以上是透明质酸链霉菌酶,在用[3H]乙酸标记的培养物中可被消化。H2[35S]O4掺入硫酸软骨素和硫酸皮肤素不受影响,总蛋白合成也不受影响。视黄醇也能抑制[3H]GAG的积累,但效果要弱得多。T3和地塞米松可抑制[3H]透明质酸合成。当将视黄酸添加到经这两种激素处理的培养物中,其浓度最大限度地抑制[3H] GAG积累时,大分子积累的速度进一步降低。维甲酸的作用在加入培养基后的24-48 h内发生变化。脉冲追踪研究未能证明对[3H]GAG降解有任何影响。
The effects of all-trans retinoic acid on glycosaminoglycan (GAG) accumulation were determined in cultured primary human skin fibroblasts. Confluent cultures treated with retinoic acid accumulated less [3H]GAG than those without the compound, an effect with an apparent threshold of 10 nM which was dose dependent in the concentration range tested (0-10 microM). At 10 microM, the inhibition was 54%. Greater than 80% of the labeled macromolecular material was streptomyces hyaluronidase digestible in cultures labeled with [3H]acetate. The incorporation of H2[35S]O4 into chondroitin sulfate and dermatan sulfate was unaffected, as was total protein synthesis. Retinol also inhibited accumulation of [3H]GAG, but was far less potent. T3 and dexamethasone can inhibit [3H]hyaluronate synthesis. When retinoic acid was added to cultures treated with either of these hormones at concentrations that maximally inhibit [3H] GAG accumulation, there was a further decrease in the rate of macromolecular accumulation. The retinoic acid effect evolved over 24-48 h after addition to the culture medium. A pulse-chase study failed to demonstrate any effect on [3H]GAG degradation.
甲状腺激素对人皮肤成纤维细胞糖胺聚糖积累的影响。
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发表时间: 1981
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影响因子: 4.8
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视黄酸:生物化学、药理学、毒理学和治疗用途。
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发表时间: 1984
影响因子: 21.1
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