Study on the Interferation of the Concentration of Free Calcium in Peripheral Human Lymphocyte by Low Dose Penicillin, Using Fura-2 as Fluorescent Probe

Hai Yan WANG Dan Dan WANG Chun Gui ZHAO Ye Hong ZHOU Shao Min SHUANG Chuan DONG

引用本文: Hai Yan WANG,  Dan Dan WANG,  Chun Gui ZHAO,  Ye Hong ZHOU,  Shao Min SHUANG,  Chuan DONG. Study on the Interferation of the Concentration of Free Calcium in Peripheral Human Lymphocyte by Low Dose Penicillin, Using Fura-2 as Fluorescent Probe[J]. Chinese Chemical Letters, 2006, 17(5): 665-666. shu
Citation:  Hai Yan WANG,  Dan Dan WANG,  Chun Gui ZHAO,  Ye Hong ZHOU,  Shao Min SHUANG,  Chuan DONG. Study on the Interferation of the Concentration of Free Calcium in Peripheral Human Lymphocyte by Low Dose Penicillin, Using Fura-2 as Fluorescent Probe[J]. Chinese Chemical Letters, 2006, 17(5): 665-666. shu

Study on the Interferation of the Concentration of Free Calcium in Peripheral Human Lymphocyte by Low Dose Penicillin, Using Fura-2 as Fluorescent Probe

  • 基金项目:

    This work was supported by the National Natural Science Foundation of China (No.20575038) and the Foundation of Shanxi Provience (No.20031019).

摘要: The effect of penicillin on the human peripheral lymphocytes was studied by steady fluorescent technique and ratiometric fluorescence dye, Fura-2. The change of the free calcium concentration in cytosol was examined under different conditions. A characterization of Fura-2-Ca interaction in an isotonic saline solution showed that Ca2+ formed a 1:1 Fura-2-Ca complex with the apparent dissociation constant 1.81×10-7 mol/L. The mechanism, by which penicillin induced the decrease of [Ca2+]i, was discussed in detail. The low dose of penicillin might modify the lymphocytes' immunology response by interfering the increase in the intracellular free calcium concentration.

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  • 收稿日期:  2005-10-08
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