Calcium and inositolphosphates in the activation of T cell-mediated cytotoxicity
Calcium and inositolphosphates in the activation of T cell-mediated cytotoxicity
复制标题
钙和磷酸肌醇激活 T 细胞介导的细胞毒性
DOI:
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发表时间:
1987
影响因子:
15.3
通讯作者:
Tullio Pozzan
中科院分区:
文献类型:
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作者:
Susan Treves;F. Virgilio;Vincenzo Cerundolo;Paola Zanovello;D. Collavo;Tullio Pozzan
Reports from a number of laboratories have shown that mAbs against the T3-Ti receptor complex cause an increase in cytosolic-free Ca2+ [( Ca2+]i) and the hydrolysis of phosphatidylinositolbisphosphate (PIP2) in CTLs. In the present report we show that activation of CTLs by their specific targets causes: (a) release of Ca2+ from intracellular stores; (b) transient formation of inositol trisphosphate (InsP3); and (c) an increased permeability to Ca2+ of CTL plasma membrane. Killing of unrelated targets could be induced by cocentrifugation of the unrelated targets with CTLs in the presence of A23187 or PMA. We conclude that: (a) activation of CTLs by specific antigens triggers the generation of the same intracellular mediators generated by stimulation of lymphocytes with anti-T3-Ti receptor antibodies and/or with polyclonal mitogens; and (b) intracellular signals that mediate the delivery of the lethal hit by CTLs are indistinguishable from those that induce cell proliferation.
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DOI:
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发表时间:
1986
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
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作者:
Yannelli,JR;Sullivan,JA;Mandell,GL;Engelhard,VH
通讯作者:
Engelhard,VH
DOI:
10.1073/pnas.82.24.8629
发表时间:
1985-12-01
影响因子:
11.1
作者:
PODACK, ER;YOUNG, JDE;COHN, ZA
通讯作者:
COHN, ZA
影响因子:
--
作者:
Martz,E;Parker,WL;Gately,MK;Tsoukas,CD
通讯作者:
Tsoukas,CD
DOI:
10.1073/pnas.83.1.150
发表时间:
1986
影响因子:
11.1
作者:
Young,JD;Nathan,CF;Podack,ER;Palladino,MA;Cohn,ZA
通讯作者:
Cohn,ZA
DOI:
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发表时间:
1986
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Russell,JH
通讯作者:
Russell,JH