Inhibition of Tissue Factor-Factor VIIa-catalyzed Factor X Activation by Factor Xa-Tissue Factor Pathway Inhibitor
Inhibition of Tissue Factor-Factor VIIa-catalyzed Factor X Activation by Factor Xa-Tissue Factor Pathway Inhibitor
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因子 Xa-组织因子途径抑制剂对组织因子-因子 VIIa 催化的因子 X 激活的抑制
DOI:
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发表时间:
1999
影响因子:
4.8
通讯作者:
T. Lindhout
中科院分区:
文献类型:
--
作者:
I. Salemink;J. Franssen;G. Willems;H. Hemker;T. Lindhout
The physiological inhibitor of tissue factor (TF)·factor VIIa (FVIIa), full-length tissue factor pathway inhibitor (TFPIFL) in complex with factor Xa (FXa), has a high affinity for anionic phospholipid membranes. The role of anionic phospholipids in the inhibition of TF·FVIIa-catalyzed FX activation was investigated. FXa generation at a rotating disc coated with TF embedded in a membrane composed of pure phosphatidylcholine (TF·PC) or 25% phosphatidylserine and 75% phosphatidylcholine (TF·PSPC) was measured in the presence of preformed complexes of FXa·TFPIFL or FXa·TFPI1–161 (TFPI lacking the third Kunitz domain and C terminus). At TF·PC, FXa·TFPIFL and FXa·TFPI1–161 showed similar rate constants of inhibition (0.07 × 108 m −1 s−1 and 0.1 × 108 m −1 s−1, respectively). With phosphatidylserine present, the rate constant of inhibition for FXa·TFPIFL increased 3-fold compared with a 9-fold increase in the rate constant for FXa·TFPI1–161. Incubation of TF·PSPC with FXa·TFPIFL in the absence of FVIIa followed by depletion of solution FXa·TFPIFL showed that FXa·TFPIFL remained bound at the membrane and pursued its inhibitory activity. This was not observed with FXa·TFPI1–161 or at TF·PC membranes. These data suggest that the membrane-bound pool of FXa·TFPIFL may be of physiological importance in an on-site regulation of TF·FVIIa activity.
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影响因子:
2.9
作者:
DAVIE, EW;FUJIKAWA, K;KISIEL, W
通讯作者:
KISIEL, W
DOI:
10.1016/s0021-9258(18)52932-x
发表时间:
1993-04
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
T. Hamamoto;M. Yamamoto;O. Nordfang;J. Petersen;D. Foster;W. Kisiel
通讯作者:
T. Hamamoto;M. Yamamoto;O. Nordfang;J. Petersen;D. Foster;W. Kisiel
影响因子:
20.3
作者:
Wesselschmidt,R;Likert,K;Girard,T;Wun,TC;BrozeJr,GJ
通讯作者:
BrozeJr,GJ
DOI:
--
发表时间:
1988
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Wun,TC;Kretzmer,KK;Girard,TJ;Miletich,JP;BrozeJr,GJ
通讯作者:
BrozeJr,GJ
DOI:
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发表时间:
1993
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Huang,ZF;Wun,TC;BrozeJr,GJ
通讯作者:
BrozeJr,GJ