Inhibition of rat and human glutathione S-transferase isoenzymes by ethacrynic acid and its glutathione conjugate

JHTM Ploemen, B van Ommen… - Biochemical …, 1990 - Elsevier
Ethacrynic acid, a potent inhibitor of glutathione S-transferases (GST), has been shown to
enhance the cytotoxicity of chlorambucil in drug resistant cell lines, but a definite mechanism …

Isoenzyme selective irreversible inhibition of rat and human glutathione S-transferases by ethacrynic acid and two brominated derivatives

JHTM Ploemen, JJP Bogaards, GA Veldink… - Biochemical …, 1993 - Elsevier
In the present study it has been shown that ethacrynic acid can inhibit glutathione S-transferase
(GST) of the pi-class irreversibly. [ 14 C]Ethacrynic acid, 0.8 nmol/nmol human P1-1 and …

Polymorphism in the glutathione conjugation activity of human erythrocytes towards ethylene dibromide and 1, 2-epoxy-3-(p-nitrophenoxy)-propane

JHTM Ploemen, LW Wormhoudt, B van Ommen… - … et Biophysica Acta (BBA …, 1995 - Elsevier
In this study a polymorphism in the conjugating activity of human erythrocyte cytosol towards
the dihaloethane, ethylene dibromide (EDB; 1,2-dibromoethane) was found. Two out of 12 …

Studies on the active site of rat glutathione S‐transferase isoenzyme 4–4: Chemical modification by tetrachloro‐1,4‐benzoquinone and its glutathione conjugate

B van OMMEN, JHTM Ploemen… - European journal of …, 1989 - Wiley Online Library
The active site of glutathione S‐transferase isoenzyme 4–4, purified from rat liver, was studied
by chemical modification. Tetrachloro‐1,4‐benzoquinone, a compound previously shown …

Regioselectivity and Quantitative Structure−Activity Relationships for the Conjugation of a Series of Fluoronitrobenzenes by Purified Glutathione S-Transferase …

AEMF Soffers, JHTM Ploemen… - Chemical research in …, 1996 - ACS Publications
Quantitative structure−activity relationships (QSAR's) are described for the rate of conjugation
of a series of fluoronitrobenzenes with cytosolic as well as with two major alpha and mu …

Use of physicochemical calculation of pKa and CLogP to predict phospholipidosis-inducing potential: a case study with structurally related piperazines

JPHTM Ploemen, J Kelder, T Hafmans… - Experimental and …, 2004 - Elsevier
Several cationic amphiphilic compounds are known to induce phospholipidosis, a condition
primarily characterized by excessive accumulation of phospholipids in different cell types, …

Inhibition of human glutathione S-transferases by dopamine, α-methyldopa and their 5-S-glutathionyl conjugates

JHTM Ploemen, B Van Ommen, A De Haan… - Chemico-biological …, 1994 - Elsevier
The reversible and irreversible inhibition of human glutathione S-transferases (GST) by
dopamine, α-methyldopa and their 5-S-glutathionyl conjugates (termed 5-GSDA and 5-…

Inhibition of glutathione S-transferase activity in human melanoma cells by α, β-unsaturated carbonyl derivatives. Effects of acrolein, cinnamaldehyde, citral …

MLPS van Iersel, JPHTM Ploemen, I Struik… - Chemico-biological …, 1996 - Elsevier
The glutathione S-transferase (GST) activity towards 1-chloro-2,4-dinitrobenzene in intact
human IGR-39 melanoma cells was determined by the quantification by HPLC-analysis of the …

Interactions of α, β-unsaturated aldehydes and ketones with human glutathione S-transferase P1-1

MLPS van Iersel, JPHTM Ploemen, ML Bello… - Chemico-biological …, 1997 - Elsevier
In the present study the irreversible inhibition of human glutathione S-transferase P1-1 (GSTP1-1)
by α, β-unsaturated aldehydes and ketones was studied. When GSTP1-1 was …

Irreversible inhibition of human glutathione S-transferase isoenzymes by tetrachloro-1, 4-benzoquinone and its glutathione conjugate

JHTM Ploemen, B Van Ommen… - Biochemical …, 1991 - Elsevier
The quinones tetrachloro-1,4-benzoquinone (1,4-TCBQ) and its glutathione conjugate (GS-1,4-TCBQ)
are potent irreversible inhibitors of most human glutathione S-transferase (GST) …