Showing 1-26 of 26 results for "PZ0118"
S M Hyder et al.
Cancer letters, 120(2), 165-171 (1998-02-14)
Estradiol induces vascular endothelial growth factor (VEGF) expression in the rat uterus and this may contribute to the hyperemia and increased vascularity produced by estrogens in this target tissue. Triphenylethylene antiestrogens such as tamoxifen have mixed agonist/antagonist activity and their...
D P McDonnell et al.
Proceedings of the National Academy of Sciences of the United States of America, 89(22), 10563-10567 (1992-11-15)
This report describes the identification of a negative regulator of estrogen and progesterone receptor function. Using a reconstituted estrogen-responsive transcription system in Saccharomyces cerevisiae, we have identified a "repressor function," which when mutated, increases the transcriptional activity of the estrogen...
T Hayon et al.
Anticancer research, 19(3A), 2089-2093 (1999-09-02)
The antitumoral activity of non-steroidal antiestrogens on promyelocytic leukemia HL60 and T lymphoblastic MOLT3 cell lines was studied. Tamoxifen and its derivatives, clomiphene and nafoxidine, caused reduction of cell viability in a dose-dependent manner. These drugs showed differences in their...
S Ray et al.
Journal of medicinal chemistry, 37(5), 696-700 (1994-03-04)
We have determined an X-ray crystal structure for the N-methyl iodide derivative of the nonsteroidal contraceptive centchroman. The pendant aromatic substituents on C-3 and C-4 of the chroman system are nearly perpendicular to the plane of the chroman system, an...
I Chakraborty et al.
Molecular and cellular biochemistry, 124(2), 115-120 (1993-07-21)
Sialic acid binding proteins (SAS) of rat uteri have been found in all three stages of the estrous cycle. To study the control of synthesis of these proteins two different animal models were used I-immature female rats (25 d) where...
J M Beekman et al.
Molecular endocrinology (Baltimore, Md.), 7(10), 1266-1274 (1993-10-01)
The estrogen receptor (ER) is a strong hormone-inducible transcription factor that regulates the expression of many genes. It was shown for the human progesterone receptor that the binding of hormone causes distinct conformational changes in the ligand binding domain (LBD)...
T A Pham et al.
Molecular endocrinology (Baltimore, Md.), 6(7), 1043-1050 (1992-07-01)
The estrogen receptor (ER) is a transcription factor involved in steroid hormone signal transduction in higher eukaryotes. The receptor also functions as a ligand-dependent transcriptional activator when introduced into Saccharomyces cerevisiae (baker's yeast), which suggests that at least some of...
H Wiseman et al.
Free radical biology & medicine, 17(5), 485-488 (1994-11-01)
Tamoxifen, 4-hydroxytamoxifen, nafoxidine, 17 beta-oestradiol and ICI 164,384 were all found to protect rat liver nuclei against Fe(III)-ascorbate dependent lipid peroxidation. The order of effectiveness of these compounds was 4-hydroxytamoxifen > 17 beta-oestradiol > nafoxidine > tamoxifen > ICI 164,384....
H Wiseman
Biochemical pharmacology, 47(3), 493-498 (1994-02-09)
The pure antioestrogen ICI 164,384, and nafoxidine (structurally related to tamoxifen) were good inhibitors of iron ion-dependent lipid peroxidation. In rat liver microsomes incubated with Fe(III)-ascorbate the overall order of effectiveness of the compounds tested as inhibitors of lipid peroxidation...
A Gagliardi et al.
Cancer research, 53(3), 533-535 (1993-02-01)
In this study, we have determined the ability of the partial estrogen antagonists, clomiphene, tamoxifen, and nafoxidine, and the pure estrogen antagonists, ICI 164,384 and ICI 182,780, to inhibit angiogenesis in the chick egg chorioallantoic membrane. All of the partial...
A K Loomis et al.
Biology of reproduction, 61(1), 51-60 (1999-06-22)
An estrogen receptor (ER) was identified in cytosolic and nuclear fractions of the testis in a marine teleost, Atlantic croaker (Micropogonias undulatus). A single class of high affinity, low capacity, and displaceable binding sites was identified by saturation analysis, with...
M Sato et al.
FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 10(8), 905-912 (1996-06-01)
For the first time, four well-characterized compounds from four distinct chemical classes were directly compared for efficacy and potency in hone, uteri, lipids, and adipose tissues in an ovariectomized model with 6 month old rats. Five weeks of oral dosing...
M S Wisel et al.
International journal of fertility and menopausal studies, 39(3), 156-163 (1994-05-01)
To compare effects of various anti-estrogens on early pregnancy. Fifty regularly cycling guinea pigs were divided into five groups (five animals/group), of which three groups received 3 mg/kg body weight Nafoxidine, Centchroman, or Tamoxifen, respectively, on the 1st, 2nd, or...
M Nichols et al.
Molecular endocrinology (Baltimore, Md.), 11(7), 950-961 (1997-06-01)
The ligand-binding domains of steroid receptors convey ligand-dependent regulation to certain proteins to which they are fused. Here we characterize fusion proteins between a site-specific recombinase, FLP, and steroid receptor ligand-binding domains. These proteins convert ligand binding into DNA recombination....
Mariana S De Lorenzo et al.
Anticancer research, 24(3a), 1737-1743 (2004-07-28)
We analyzed the effect of nafoxidine on the earlier biological processes of angiogenesis and explored the role of different signaling pathways involved in the in vitro response of endothelial cells (HUVEC). Nafoxidine significantly inhibited adhesion, spreading, migration and invasion of...
Miho Y Mizutani et al.
Chemical & pharmaceutical bulletin, 60(2), 183-194 (2012-02-02)
A fast method that can predict the binding affinities of chemicals to a target protein with a high degree of accuracy will be very useful in drug design and regulatory science. We have been developing a scoring function for affinity...
Gökçen Yaz et al.
American journal of clinical oncology, 27(4), 384-388 (2004-08-04)
The antitumoral activity of nonsteroidal antiestrogens on C6 and low passage of human glioma cells was investigated. Tamoxifen and its metabolite, 4-hydroxytamoxifen, did not influence viability of the human cells, but tamoxifen had a limited antiproliferative effect on C6 cells...
Tamar Hayon et al.
Cancer detection and prevention, 27(5), 389-396 (2003-10-31)
The antileukemic activity of nonsteroidal antiestrogens was investigated. Tamoxifen, clomiphene and nafoxidine caused a decrease in viability of the estrogen receptor-negative T-lymphoblastic leukemia cell line CCRF/CEM, nafoxidine being the most active. A combination of clomiphene and genistein resulted in a...
A Yazdanyar et al.
Journal of biomedical science, 8(2), 153-159 (2001-04-05)
Microbial virulence is generally considered to be multifactorial with infection resulting from the sum of several globally regulated virulence factors. Estrogen may serve as a signal for global virulence induction in Candida albicans. Nonsteroidal estrogens and estrogen receptor antagonists may...
Sumit Bansal et al.
The Journal of pharmacology and experimental therapeutics, 369(3), 389-405 (2019-03-29)
Lithocholic acid (LCA) is a bile acid associated with adverse effects, including cholestasis, and it exists in vivo mainly as conjugates known as glyco-LCA (GLCA) and tauro-LCA (TLCA). Tamoxifen has been linked to the development of cholestasis, and it inhibits...
J W Liu et al.
Biological chemistry, 380(11), 1341-1345 (1999-12-30)
The budding yeast Saccharomyces cerevisiae has been used extensively as a biological 'test tube' to study the regulation of the human estrogen receptor (ER) alpha. However, anti-estrogens, which are of great importance as therapeutic agents and research tools, fail to...
M S De Lorenzo et al.
Anticancer research, 20(1A), 395-400 (2000-04-19)
During angiogenesis, proteases and their inhibitors interact in the remodelling of the basement membrane. It has been demonstrated that nafoxidine has antiangiogenic activity in the chick egg chorioallantoic membrane assay, but the precise mechanism of action is unknown. We have...
Ruria Namba et al.
Breast cancer research : BCR, 7(6), R881-R889 (2005-11-11)
Ductal carcinoma in situ (DCIS) is a noninvasive premalignant lesion and is considered a precursor to invasive carcinoma. DCIS accounts for nearly 20% of newly diagnosed breast cancer, but the lack of experimentally amenable in vivo DCIS models hinders the...
Y S Lee et al.
Cancer letters, 110(1-2), 243-248 (1996-12-20)
The possible interaction between antiestrogens (tamoxifen, clomiphene and nafoxidine) and bepridil, a known Na+-Ca2+ exchange blocker, in the regulation of cell growth was investigated using U-373 MG human astrocytoma and SK-N-MC human neuroblastoma cells as model cellular systems. The co-treatment...
R N Trivedi et al.
Contraception, 51(6), 367-379 (1995-06-01)
Time-related estrogen antagonistic action of a single oral contraceptive (1.25 mg/kg) dose of the triphenylethylene antiestrogen centchroman was determined in ovariectomized immature rats. Tamoxifen and nafoxidine were used for comparison. A single oral administration of centchroman followed by three doses...
D Q Tran et al.
Biochemical and biophysical research communications, 235(3), 669-674 (1997-06-27)
The effectiveness of anti-estrogens in treating estrogen-dependent diseases is limited by the acquired resistance of some diseases to anti-estrogens. This effect could occur by the export of anti-estrogens by cell membrane transport proteins. To study this phenomenon we have expressed...

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