Sani Mahsa, Ebrahimi Sepideh, Aleahmad Fatemeh, Salmannejad Mahin, Hosseini Seyed Mojtaba, Mazarei Gelareh, Talaei-Khozani Tahereh
1Laboratory for Stem Cell Research, Anatomy Department, Shiraz Medical School, Shiraz University of Medical Sciences, Shiraz, Iran.
2Department of Biochemistry, Shiraz Medical School, Shiraz University of Medical Sciences, Shiraz, Iran.
Tissue Eng Regen Med. 2017 Jul 27;14(5):587-593. doi: 10.1007/s13770-017-0066-x. eCollection 2017 Oct.
Human breast milk stem cells (hBSCs) contain a population of cells with the ability to differentiate into various cell lineages for cell therapy applications. The current study examined the differentiation potential of hBSCs into hepatocytes-like cells. The cells were isolated from the breast milk and were treated with hepatogenic medium containing hepatocyte growth factor, insulin-like growth factor and dexamethasone for 7 days subsequently; Oncostatin M was added to the culture media. RT-PCR and immunocytochemistry were performed to detect the hepatogenic markers. The glycogen storage and the ability of the cells to absorb and release indocynanin green were also tested. The data showed that most of the differentiated cells formed cell aggregates after the 30th day, with more cells accumulated to form spheroids. RT-PCR revealed the expression of the hepatic nuclear factor, albumin, cytokeratin 18 and 19, cytochrome P2B6, glucose-6-phospahtase and claudin. The functional assays also showed glycogen storage and omission of indicynine green. Our study demonstrated hBSCs are novel population that can differentiate into hepatocyte-like cells.
人母乳干细胞(hBSCs)包含一群具有分化为各种细胞谱系能力的细胞,可用于细胞治疗。当前研究检测了hBSCs向肝细胞样细胞的分化潜能。从母乳中分离出细胞,随后用含有肝细胞生长因子、胰岛素样生长因子和地塞米松的成肝培养基处理7天;将制瘤素M添加到培养基中。进行逆转录聚合酶链反应(RT-PCR)和免疫细胞化学检测成肝标志物。还测试了细胞的糖原储存以及吸收和释放吲哚菁绿的能力。数据显示,大多数分化细胞在第30天后形成细胞聚集体,有更多细胞聚集形成球体。RT-PCR显示肝细胞核因子、白蛋白、细胞角蛋白18和19、细胞色素P2B6、葡萄糖-6-磷酸酶和紧密连接蛋白的表达。功能测定也显示了糖原储存和吲哚菁绿的排出。我们的研究表明,hBSCs是一种可分化为肝细胞样细胞的新型细胞群体。