Adenovirus-mediated herpes simplex virus type-1 thymidine kinase gene therapy suppresses oestrogen-induced pituitary prolactinomas.

Adenovirus-mediated herpes simplex virus type-1 thymidine kinase gene therapy suppresses oestrogen-induced pituitary prolactinomas.
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腺病毒介导的单纯疱疹病毒 1 型胸苷激酶基因治疗可抑制雌激素诱导的垂体催乳素瘤。

DOI:
10.1210/jcem.85.3.6482
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发表时间:
2000
期刊:
The Journal of clinical endocrinology and metabolism
影响因子:
--
通讯作者:
M. G. Castro
M. G. Castro
中科院分区:
--
文献类型:
--
作者:
S. Windeatt;T. Southgate;Ricardo A. Dewey;Federico Bolognani;M. Perone;A. Larregina;T. Maleniak;I. Morris;R. G. Goya;D. Klatzmann;P. Lowenstein;M. G. Castro

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我们测试的假设,使用重组腺病毒载体(RAds)表达单纯疱疹病毒1型胸苷激酶(HSV 1-TK)的基因转移可能会提供一种替代的治疗方法治疗垂体泌乳素瘤,不响应经典的治疗策略。HSV 1-TK将前药更昔洛韦(GCV)转化为GCV单磷酸,GCV单磷酸又被细胞激酶进一步磷酸化为GCV三磷酸,GCV三磷酸对增殖细胞有毒。该系统的一个吸引人的特征是旁观者效应,由此未转导的细胞也被杀死。我们的研究结果表明,在GCV的存在下,RAd/HSV 1-TK是无毒的正常垂体前叶(AP)腺在体外,但导致细胞死亡的垂体瘤细胞系GH 3,PRL/GH分泌细胞系,和AtT 20,促肾上腺皮质激素细胞系。我们使用舒必利和雌激素诱导的大鼠AP腺内的催乳细胞增生作为体内动物模型。用RAd/HSV 1-TK和随后的GCV治疗患有雌激素诱导的催乳细胞增生的大鼠的垂体内感染,降低了血浆PRL水平并减少了垂体的质量。更重要的是,对其他AP激素的循环水平没有有害影响,表明该治疗对原位AP腺体无毒。总之,我们的研究结果表明,使用HSV 1-TK转基因的自杀基因治疗可以进一步发展为一种有用的治疗,以补充目前的治疗泌乳素瘤。
We tested the hypothesis that gene transfer using recombinant adenovirus vectors (RAds) expressing herpes simplex virus type 1 thymidine kinase (HSV1-TK) might offer an alternative therapeutic approach for the treatment of pituitary prolactinomas that do not respond to classical treatment strategies. HSV1-TK converts the prodrug ganciclovir (GCV) to GCV monophosphate, which is in turn further phosphorylated by cellular kinases to GCV triphosphate, which is toxic to proliferating cells. One attractive feature of this system is the bystander effect, whereby untransduced cells are also killed. Our results show that RAd/HSV1-TK in the presence of GCV is nontoxic for the normal anterior pituitary (AP) gland in vitro, but causes cell death in the pituitary tumor cell lines GH3, a PRL/GH-secreting cell line, and AtT20, a corticotrophic cell line. We have used sulpiride- and oestrogen-induced lactotroph hyperplasia within the rat AP gland as an in vivo animal model. Intrapituitary infection of rats bearing oestrogen-induced lactotroph hyperplasia, with RAd/ HSV1-TK and subsequent treatment with GCV, decreases plasma PRL levels and reduces the mass of the pituitary gland. More so, there were no deleterious effects on circulating levels of other AP hormones, suggesting that the treatment was nontoxic to the AP gland in situ. In summary, our results show that suicide gene therapy using the HSV1-TK transgene could be further developed as a useful treatment to complement current therapies for prolactinomas.
慢性高催乳素血症新动物模型的表征。
DOI: 10.1016/0026-0495(91)90111-9
发表时间: 1991
期刊: Metabolism: clinical and experimental
影响因子: --
作者:
Adler,RA;Krieg,RJ;Farrell,ME;Deiss,WP;MacLeod,RM
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DOI: 10.1210/jcem.81.6.8964885
发表时间: 1996-06
期刊: The Journal of clinical endocrinology and metabolism
影响因子: --
作者:
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低催乳素血症不会妨碍促性腺激素抑制、睾酮替代的大鼠正常精子发生的恢复。
DOI: --
发表时间: 1996
期刊: Journal of andrology.
影响因子: --
作者:
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雌激素诱导的高催乳素血症对成年雄性大鼠内分泌和性功能的影响。
DOI: 10.1159/000123968
发表时间: 1984
期刊: Neuroendocrinology
影响因子: 4.1
作者:
Bartke,A;Doherty,PC;Steger,RW;Morgan,WW;Amador,AG;Herbert,DC;Siler-Khodr,TM;Smith,MS;Klemcke,HG;Hymer,WC
通讯作者: Hymer,WC