机构:[1]Capital Med Univ, Beijing Tiantan Hosp, Dept Anesthesia, Beijing 100050, Peoples R China;诊疗科室麻醉科首都医科大学附属天坛医院[2]Chinese Acad Med Sci, Fuwai Hosp, Natl Ctr Cardiovasc Dis, State Key Lab Cardiovasc Dis, Beijing 100037, Peoples R China;[3]Peking Union Med Coll, Beijing 100037, Peoples R China
Induced pluripotent stem (iPS) cells derive from autologous somatic cells, the application prospect of iPS cells for regenerative medicine and tissue engineering is better than embryonic stem cells (ESCs) to some extent. Alveolar type II (AT II) epithelial cells play key role in the injured lung tissue regeneration and function recovery. The differentiation of iPS cells into AT II cells could provide available source for injured lung treatment. In this study, rat iPS (riPS) cells were resuscitated and proliferated for 14 days before differentiation. A modified three-step induction protocol similar to the reported ESCs inducing procedure was used in this study for the differentiation groups. Routine cell culture was done to the riPS cell control group (riPS-con). At stage 3, cells of day 7 (Diff. 7) and day 14 (Diff. 14) were collected for the real-time polymerase chain reaction tests for gene expressions of Oct4, Nanog, SPA, SPB, SPC, SPD, and CC10. Immunofluorescence staining of SPC and SSEA-1 was conducted. At the end of the differentiation, cell morphology became outstretched and epithelium-like. Cells of the Diff. 14 group positively expressed SPC and negatively expressed SSEA-1, which is contrary to the riPS-con group. In the Diff. 7 and the Diff. 14 groups, the expression of Oct4, Nanog, and SPB decreased (P < 0.05), whereas the expression of SPA, SPC, SPD (P < 0.05), and CC10 (P > 0.05) increased. This study indicated that riPS cells can successfully differentiate into AT II epithelial cells with the three-step induction protocol and may be further applied to implanting in decellularized rat lung scaffolds and building a bio-artificial lung.
基金:
National Natural Science Foundation of ChinaNational Natural Science Foundation of China [31370993]
第一作者机构:[1]Capital Med Univ, Beijing Tiantan Hosp, Dept Anesthesia, Beijing 100050, Peoples R China;
通讯作者:
通讯机构:[2]Chinese Acad Med Sci, Fuwai Hosp, Natl Ctr Cardiovasc Dis, State Key Lab Cardiovasc Dis, Beijing 100037, Peoples R China;[3]Peking Union Med Coll, Beijing 100037, Peoples R China
推荐引用方式(GB/T 7714):
Wu Bei,Wang Chen,Hei Feilong,et al.The differentiation of rat-induced pluripotent stem cells into alveolar type II epithelial cells with a three-step induction protocol[J].ANIMAL CELLS AND SYSTEMS.2015,19(1):39-45.doi:10.1080/19768354.2014.1001435.
APA:
Wu, Bei,Wang, Chen,Hei, Feilong,Long, Cun,Chen, Mengmeng...&Ju, Zhihai.(2015).The differentiation of rat-induced pluripotent stem cells into alveolar type II epithelial cells with a three-step induction protocol.ANIMAL CELLS AND SYSTEMS,19,(1)
MLA:
Wu, Bei,et al."The differentiation of rat-induced pluripotent stem cells into alveolar type II epithelial cells with a three-step induction protocol".ANIMAL CELLS AND SYSTEMS 19..1(2015):39-45