In vivo transplantation of 3D encapsulated ovarian constructs in rats corrects abnormalities of ovarian failure.

In vivo transplantation of 3D encapsulated ovarian constructs in rats corrects abnormalities of ovarian failure.
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DOI:
10.1038/s41467-017-01851-3
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发表时间:
2017-12-05
影响因子:
16.6
通讯作者:
Opara EC
Opara EC
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Sittadjody S;Saul JM;McQuilling JP;Joo S;Register TC;Yoo JJ;Atala A;Opara EC

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安全的临床激素替代(HR)可能会变得越来越重要,在越来越多的老年妇女和癌症患者接受治疗,消融卵巢。基于细胞的HRT(cHRT)是一种替代方法,由于细胞参与下丘脑-垂体-卵巢反馈控制回路,因此可以使用比药理学方法更低的循环激素水平实现某些生理结果。在这里,我们描述了3D生物工程卵巢结构的体内性能,重演卵巢颗粒细胞和卵泡膜细胞之间的天然细胞-细胞相互作用作为cHRT的一种方法。使用Ca++或Sr++交联藻酸盐来制造构建体。在卵巢切除(ovx)大鼠中植入后,Sr++-交联的构建体在90天的研究期间实现激素的稳定分泌。此外,我们显示这些具有同基因细胞的构建体在改善激素缺乏的不良影响方面是有效的,包括该大鼠模型中的骨骼健康、子宫健康和身体组成。基于细胞的激素替代疗法(cHRT)可能是药物(p)HRT的替代疗法。在这里,作者表明,与类似剂量的pHRT相比,在卵巢切除大鼠中植入颗粒细胞和卵泡膜细胞的3D生物工程卵巢结构重现了天然细胞相互作用并提高了疗效。
Safe clinical hormone replacement (HR) will likely become increasingly important in the growing populations of aged women and cancer patients undergoing treatments that ablate the ovaries. Cell-based HRT (cHRT) is an alternative approach that may allow certain physiological outcomes to be achieved with lower circulating hormone levels than pharmacological means due to participation of cells in the hypothalamus-pituitary-ovary feedback control loop. Here we describe the in vivo performance of 3D bioengineered ovarian constructs that recapitulate native cell–cell interactions between ovarian granulosa and theca cells as an approach to cHRT. The constructs are fabricated using either Ca++ or Sr++ to crosslink alginate. Following implantation in ovariectomized (ovx) rats, the Sr++-cross-linked constructs achieve stable secretion of hormones during 90 days of study. Further, we show these constructs with isogeneic cells to be effective in ameliorating adverse effects of hormone deficiency, including bone health, uterine health, and body composition in this rat model. Cell-based hormone replacement therapy (cHRT) may be an alternative therapy to pharmacological (p)HRT. Here, the authors show that implanted 3D bioengineered ovarian constructs of granulosa and theca cells in ovariectomized rats recapitulate native cell interactions and improve efficacy compared to similar doses of pHRT.
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发表时间: 2014-08-01
影响因子: 3.9
作者:
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通讯作者: Kluess, Heidi A.
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发表时间: 1980-01-01
影响因子: 4
作者:
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DOI: 10.1038/nm.3009
发表时间: 2012-12
期刊: Nature medicine
影响因子: 82.9
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