Change in membrane potential induced by streptolysin O, a pore‐forming toxin: flow cytometric analysis using a voltage‐sensitive fluorescent probe and rat thymic lymphocytes
Change in membrane potential induced by streptolysin O, a pore‐forming toxin: flow cytometric analysis using a voltage‐sensitive fluorescent probe and rat thymic lymphocytes
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链球菌溶血素 O(一种成孔毒素)引起的膜电位变化:使用电压敏感荧光探针和大鼠胸腺淋巴细胞进行流式细胞术分析
DOI:
10.1111/1348-0421.12748
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发表时间:
2019
影响因子:
2.6
通讯作者:
Atsushi Tabata
中科院分区:
文献类型:
--
作者:
Miho Kobayashi;Madoka Nishimura;Mina Kawamura;Norio Kamemura;Hideaki Nagamune;Atsushi Tabata
Streptolysin O (SLO) is a bacterial pore‐forming toxin that is employed to permeabilize cell membranes in some biological experiments. SLO forms various types of pores with different shapes, increasing membrane ion permeability and subsequently inducing changes in membrane potential. To characterize the pores formed by SLO, the changes in membrane potential induced by SLO in rat lymphocytes were considered using flow cytometry with a voltage‐sensitive fluorescent probe, bis‐(1,3‐dibutylbarbituric acid)trimethine oxonol (Oxonol). SLO caused three types of membrane potential responses accessed with Oxonol. One type induces a great decrease in Oxonol fluorescence (large hyperpolarization) that may be elicited via the increase of Ca2+‐dependent K+permeability by SLO‐induced influx of external Ca2+. A second type is an increase in Oxonol fluorescence (depolarization) that may be caused by a nonspecific increase in membrane cation permeability. The third type is a small decrease in Oxonol fluorescence (small hyperpolarization), probably via an increase in Cl–permeability. That SLO transitionally changes membrane ion permeability may have implications in the pathology of pyogenic group streptococci infections in which SLO is thought to be one of the key virulence factors.
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影响因子:
4.6
作者:
A. Menegon;S. Pitassi;N. Mazzocchi;L. Redaelli;R. Rizzetto;J. Rolland;C. Poli;M. Imberti;A. Lanati;F. Grohovaz
通讯作者:
F. Grohovaz
DOI:
--
发表时间:
1970
期刊:
Mie medical journal
影响因子:
--
作者:
M. Taki
通讯作者:
M. Taki
影响因子:
4.5
作者:
H. Matsui;Yoko Sakanashi;T. Oyama;Y. Oyama;S. Yokota;S. Ishida;Y. Okano;Toshihisa B Oyama;Y. Nishimura
通讯作者:
Y. Nishimura
影响因子:
5.6
作者:
H. A. Wilson;T. Chused
通讯作者:
T. Chused
DOI:
10.1016/s0021-9258(18)83166-0
发表时间:
1989-05
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
J P Y Kao;A. Harootunian;R. Tsien
通讯作者:
J P Y Kao;A. Harootunian;R. Tsien