[1] Dana Farber Canc Inst, Dept Canc Biol, Boston, MA 02115 USA
[2] Harvard Med Sch, Dept Biol Chem & Mol Pharmacol, 360 Longwood Ave, Boston, MA 02115 USA
[3] Cornell Univ, Div Hematol & Oncol, Dept Med, Weill Cornell Med, New York, NY 10021 USA
[4] Harvard Med Sch, Program Cellular & Mol Med, Boston Childrens Hosp, Boston, MA 02115 USA
[5] PepTech Shanghai Pharmaceut Corp, 388 Yindu Rd, Shanghai 200231, Peoples R China