Feng Lin,Diao Qingchun,Zheng Junsong,He Juan,Wu Jun.Population, proliferative ability and suppressive activity of CD4+CD25+ regulatory T cells in MRL/lpr mice[J].J Amry Med Univ (J Third Mil Med Univ),2011,33(04):353-355.
Feng Lin,Diao Qingchun,Zheng Junsong,He Juan,Wu Jun.Population, proliferative ability and suppressive activity of CD4+CD25+ regulatory T cells in MRL/lpr mice[J].J Amry Med Univ (J Third Mil Med Univ),2011,33(04):353-355.DOI:
and their suppressive activity to effective T cells (Teffs). Methods Flow cytometry was used to determine cell populations of Tregs in the spleen of 8 MRL/lpr mice and 8 BALB/c mice respectively. Magnetic beads were employed to separate Tregs and Teffs from the sple
nic cells of the 2 kinds of mice. Then the Tregs were cultured in vitro for 2 weeks and cell populations were determined. The Tregs were cultured with Teffs for 5 d and then the level of Teffs was detected. The suppresive rate of Tregs to Teffs was calculated. Results No significant difference was detected in cell populations of Tregs between 2 kinds of mice [(4.88±0.55)% and (5.03±0.34)%
respectively; P0.05
]
. After cultivation in vitro for 2 weeks
cell populations of Tregs were significantly lower in MRL/lpr mice than that in BALB/c mice [(6.61±0.92)×10
5
and (13.25±1.91)×10
5
respectively; P0.05
]
. After co-cultivation in vitro for 5 d
the suppressive rate of Tregs to Teffs was significantly lower in MRL/lpr mice than that in BALB/c mice (P0.05). Conclusion The Tregs in MRL/lpr mice have decreased reproductive ability and suppressive activity
which may lead to impairment of immune balance and induction of auto-antibody
and thus the illness of systemic lupus erythematosus .