Evidence for the synthesis of multiple pro-opiomelanocortin-like precursors in murine Leydig tumor cells.

Evidence for the synthesis of multiple pro-opiomelanocortin-like precursors in murine Leydig tumor cells.
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小鼠 Leydig 肿瘤细胞中合成多种阿片黑皮质素原样前体的证据。

DOI:
10.1016/0003-9861(84)90535-6
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发表时间:
1984
影响因子:
3.9
通讯作者:
Puett,D
Puett,D
中科院分区:
生物学3区
文献类型:
--
作者:
Melner,MH;Puett,D

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最近通过免疫组织化学技术将阿片肽β-内啡肽定位于垂体外组织和细胞,包括睾丸的间质细胞。一个有趣的问题是,这种定位是否反映了肽通过特定摄取机制的积累,还是细胞内以类似于垂体中合成的阿片黑皮质素原的大前体形式合成的结果。本文提供的证据表明,针对β-内啡肽和促肾上腺皮质激素的特异性抗体从M5480A Leydig肿瘤细胞的总细胞mRNA翻译产物中沉淀出相同的前体分子。此外,来自这些细胞的 mRNA 在严格条件下与编码大鼠垂体阿黑皮质素原序列的 cDNA 交叉杂交。这些数据证明了阿片黑皮质素原样 mRNA 在 Leydig 细胞肿瘤中的合成,并强烈暗示了这些细胞内的生物合成。
The opiate peptide β-endorphin has recently been localized in extrapituitary tissues and cells, including the Leydig cells of the testis, by immunohistochemical techniques. An intriguing question is whether this localization reflects an accumulation of the peptide through a specific uptake mechanism or is the result of synthesis within the cell in a large precursor form similar to pro-opiomelanocortin synthesized in the pituitary. Evidence is presented herein that specific antibodies against β-endorphin and adrenocorticotrophic hormone precipitate identical precursor molecules from total cellular mRNA translation products of M5480A Leydig tumor cells. In addition, mRNA from these cells cross-hybridizes under stringent conditions with a cDNA coding for the rat pituitary pro-opiomelanocortin sequence. These data demonstrate the synthesis of a pro-opiomelanocortin-like mRNA in this Leydig cell tumor and strongly implicate biosynthesis within these cells.
兔红细胞中的 N-羟基磺基琥珀酰亚胺活性酯和 L-( )-乳酸转运蛋白。
DOI: 10.1021/bi00355a012
发表时间: 1986
期刊: Biochemistry
影响因子: 2.9
作者:
Donovan,JA;Jennings,ML
通讯作者: Jennings,ML
DOI: 10.1021/ja00957a027
发表时间: 1966-01-01
影响因子: 15
作者:
DETAR, DF;SILVERST.R
通讯作者: SILVERST.R
DOI: 10.1111/j.1432-1033.1985.tb09071.x
发表时间: 1985-01-01
期刊: EUROPEAN JOURNAL OF BIOCHEMISTRY
影响因子: --
作者:
LUDWIG, FR;JAY, FA
通讯作者: JAY, FA
DOI: --
发表时间: 1985
期刊: The Journal of biological chemistry
影响因子: --
作者:
Jennings,ML;Nicknish,JS
通讯作者: Nicknish,JS
DOI: 10.1021/ja00957a028
发表时间: 1966-01-01
影响因子: 15
作者:
DETAR, DF;SILVERST.R
通讯作者: SILVERST.R