Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
Kaohsiung J Med Sci. 2010 Mar;26(3):113-22. doi: 10.1016/S1607-551X(10)70017-6.
We determined the expression of both mRNAs and microRNAs (miRNAs) from human mesenchymal stem cells BM19, FM30, and AM3, which is derived from breast, face, and abdominal adipose tissues, respectively. BM19, FM30, and AM3 cells exhibited considerably similar mRNA profiles, and their 1,038 abundantly common genes were involved in regulating six cell adhesion and three cytoskeleton remodeling processes among the top ten GeneGo canonical pathway maps. The 39 most abundant miRNAs in AM3 cells were expressed at very similar levels in BM19 cells. However, seven abundant miRNAs (miR-19b, miR-320, miR-186, miR-199a, miR-339, miR-99a, and miR-152) in AM3 cells were expressed at much lower levels than that in FM30 cells, and 38 genes targeted by these miRNAs were consequently upregulated more than 3-fold in FM30 cells compared with AM3 cells. Therefore, autologous abdominal adipose-derived mesenchymal stem cells are suitable for tissue engineering of breast reconstruction because of very similar expression profiles of mRNAs and miRNAs between AM3 and BM19 cells. Conversely, abdominal AM3 cells might not be suitable for facial rejuvenation, since the 38 highly expressed genes targeted by miRNAs in FM30 cells might play an important role(s) in the development of facial tissue.
我们测定了来源于乳腺(BM19 细胞)、面(FM30 细胞)和腹(AM3 细胞)部脂肪组织的人源间充质干细胞 BM19、FM30 和 AM3 的 mRNA 和 microRNAs(miRNAs)的表达情况。BM19、FM30 和 AM3 细胞表现出极为相似的 mRNA 谱,其 1038 个丰度最高的共同基因参与调控 GeneGo 前十大经典通路图谱中 6 个细胞黏附过程和 3 个细胞骨架重塑过程。在 AM3 细胞中表达丰度最高的 39 个 miRNA 在 BM19 细胞中的表达水平非常相似。然而,在 AM3 细胞中表达丰度较高的 7 个 miRNA(miR-19b、miR-320、miR-186、miR-199a、miR-339、miR-99a 和 miR-152)的表达水平显著低于 FM30 细胞,并且这些 miRNA 靶向的 38 个基因在 FM30 细胞中上调超过 3 倍,明显高于 AM3 细胞。因此,由于 AM3 和 BM19 细胞之间 mRNA 和 miRNA 的表达谱非常相似,源自自体腹部脂肪的间充质干细胞适用于乳房再造的组织工程。相反,腹部 AM3 细胞可能不适用于面部年轻化,因为在 FM30 细胞中高表达的 miRNA 靶向的 38 个基因可能在面部组织的发育中发挥重要作用。