Hemeoxygenase-1 expression effect on the up-regulation of peripheral blood CD4+CD25+CD127low/- regulatory T cells mediated by mesenchymal stem cells in asthma patients 
Wen Bing, Zhuansun Yong-xun, Yan Fu-de, Chen Rui, Zhang Wei, Feng Su-ling, Li Jian-guo
Chinese Journal of Tissue Engineering Research . 2011, (27): 5053 -5057 .  DOI: 10.3969/j.issn.1673-8225.2011.27.025