Plant RNAs Found in Mammals
MicroRNAs from plants accumulate in mammalian blood and tissues, where they can regulate gene expression.
Cristina Luiggi, 20/09/2011
http://the-scientist.com/2011/09/20/plant-rnas-found-in-mammals/


Exogenous plant MIR168a specifically targets mammalian LDLRAP1: evidence of cross-kingdom regulation by microRNA
Lin Zhang,Dongxia Hou, Xi Chen, Donghai Li,
Lingyun Zhu, Yujing Zhang, Jing Li, Zhen Bian, Xiangying Liang,
 Xing Cai1, Yuan Yin1, Cheng Wang1, Tianfu Zhang, Dihan Zhu,
Dianmu Zhang, Jie X1, Qun Chen, Yi Ba, Jing Liu, Qiang Wang, Jianqun Chen, Jin Wang, Meng Wang, Qipeng Zhang,
Junfeng Zhang, Ke Zen and Chen-Yu Zhang

http://www.nature.com/cr/journal/vaop/ncurrent/full/cr2011158a.html
http://www.nature.com/cr/journal/vaop/ncurrent/pdf/cr2011158a.pdf