Effects of Nitrosyl Iron Complexes with Thiocarbamide and Its Aliphatic Derivatives on Activities of Ca 2+ -ATPase of Sarcoplasmic Reticulum and cGMP Phosphodiesterase
We studied the effects of water-soluble cationic dinitrosyl iron complexes with thiocarbamide and its aliphatic derivatives, new synthetic analogs of natural NO donors, active centers of nitrosyl [1Fe-2S]proteins, on activities of Ca -ATPase of sarcoplasmic reticulum and cGMP phosphodiesterase. Nitr...
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Published in | Bulletin of experimental biology and medicine Vol. 163; no. 1; p. 54 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
United States
01.05.2017
|
Subjects | |
Online Access | Get full text |
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Summary: | We studied the effects of water-soluble cationic dinitrosyl iron complexes with thiocarbamide and its aliphatic derivatives, new synthetic analogs of natural NO donors, active centers of nitrosyl [1Fe-2S]proteins, on activities of Ca
-ATPase of sarcoplasmic reticulum and cGMP phosphodiesterase. Nitrosyl iron complexes [Fe(C
N
H
S)Cl(NO)
]
[Fe(NO)
(C
N
H
S)
]
Cl
(I), [Fe(SC(N(CH
)
)
(NO)
]Cl (II), [Fe(SC(NH
)
)
(NO)
Cl×H
O (III), and [Fe(SC(NH
)
)
(NO)
]
SO
×H
O (IV) in a concentration of 10
M completely inhibited the transporting and hydrolytic functions of Ca
-ATPase. In a concentration of 10
M, they inhibited active Ca
transport by 57±6, 75±8, 80±8, and 85±9% and ATP hydrolysis by 0, 40±4, 48±5, and 38±4%, respectively. Complex II reversibly and noncompetitively inhibited the hydrolytic function of Ca
-ATPase (Ki=1.7×10
M). All the studied iron-sulphur complexes in a concentration of 10
M inhibited cGMP phosphodiesterase function. These data suggest that the studied complexes can exhibit antimetastatic, antiaggregation, vasodilatatory, and antihypertensive activities. |
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ISSN: | 1573-8221 |