Figure 4: Effect of 60Co -irradiation and treatment of 20 μM TS on CD34+ cells. A. Proteins down-regulated by 60Co γ-radiation exposure and returned to control levels as a result of pretreatment with 20 μM TS. B. Proteins upregulated by 60Co γ-radiation exposure and returned to control levels as a result of pretreatment with 20 μM TS.