Aging Cell:棕色脂肪组织的移植延长了卵巢寿命

2019-08-11 海北 MedSci原创

延长卵巢寿命是有吸引力和具有挑战性的。最佳的临床策略必须是安全,长效,简单且经济的。

延长卵巢寿命是有吸引力和具有挑战性的。最佳的临床策略必须是安全,长效,简单且经济的。

棕色脂肪组织(BAT)在婴儿中是最丰富和最强壮的,其同种移植已被用于治疗人类疾病的各种小鼠模型。因此,研究人员提出疑问,可以使用BAT来延长衰老小鼠的卵巢寿命吗?我们是否可以尝试BAT异种移植,来减轻由于缺乏自愿婴儿捐献者产生的对同种异体BAT的临床需求?

在最近的一项研究中,研究人员发现单次大鼠 - 小鼠(RTM)BAT异种移植不会引起全身免疫排斥,但确实显着提高了小鼠的生育能力,并且有效期超过5个月(相当于人类的10年) 。

接下来,研究人员进行了一系列分析,包括卵泡计数;AMH水平;动情周期;mTOR活动;GDF9,BMP15,LHR,Sirt1和Cyp19a水平;ROS和膜联蛋白V水平;IL6和脂联素水平;生化血液指标;体温;转录;和DNA甲基化研究。

从这些方面,研究人员提出,大鼠BAT异种移植挽救了指示卵泡和卵母细胞质量的多个指标;大鼠BAT也改善衰老小鼠的新陈代谢和整体健康;F0小鼠的转录和表观遗传(DNA甲基化)改善可使F1小鼠受益;在多个KEGG途径和GO分类的生物过程中,所涉及的差异表达基因(DEG)或差异甲基化区域(DMR)在F0和F1之间是相同的。

这项研究可以为从亲密的亲人到女性的临床BAT异种移植提供有用的参考。


原始出处:

Liang‐Jian Chen et al. Single xenotransplant of rat brown adipose tissue prolonged the ovarian lifespan of aging mice by improving follicle survival. Aging Cell, DOI: https://doi.org/10.1111/acel.13024


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