Research Topics
| C IpSummaryAffiliation: University at Buffalo Country: USA Publications
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Publications
Activities of structurally-related lipophilic selenium compounds as cancer chemopreventive agentsC Ip
Department of Pharmacology and Therapeutics, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
Anticancer Res 18:4019-25. 1998..Bioavailability was very low with diphenyl selenide, and undetectable with triphenylselenonium chloride. The chemical reactivities of these different selenium compounds are discussed in relation to the biological effects reported here...
Cytostasis and cancer chemoprevention: investigating the action of triphenylselenonium chloride in in vivo models of mammary carcinogenesisC Ip
Department of Surgical Oncology, Roswell Park Cancer Institute, Buffalo, NY 14293, USA
Anticancer Res 18:9-12. 1998..These findings highlight the importance of understanding the range of activity of a given chemopreventive agent in order to maximize the probability of a successful outcome in the design of any future intervention trial...
Triphenylselenonium and diphenylselenide in cancer chemoprevention: comparative studies of anticarcinogenic efficacy, tissue selenium levels and excretion profileC Ip
Department of Surgical Oncology, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
Anticancer Res 17:3195-9. 1997..Further studies are needed to clarify the basis for the differential effects of these phenyl selenide derivatives...
Review of the effects of trans fatty acids, oleic acid, n-3 polyunsaturated fatty acids, and conjugated linoleic acid on mammary carcinogenesis in animalsC Ip
Department of Surgical Oncology, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
Am J Clin Nutr 66:1523S-1529S. 1997..4) Conjugated linoleic acid is unique in the sense that concentrations < or = 1% are sufficient for producing significant cancer protection and that this effect seems to be independent of the other fatty acids...
Modulation of phase I and phase II xenobiotic-metabolizing enzymes by selenium-enriched garlic in ratsC Ip
Department of Surgical Oncology, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
Nutr Cancer 28:184-8. 1997..Our data seem to suggest that an increased detoxification of carcinogen via the phase II conjugating enzymes might represent a mechanism of tumor suppression by Se-garlic...
Selenium modulation of cell proliferation and cell cycle biomarkers in normal and premalignant cells of the rat mammary glandC Ip
Department of Experimental Pathology, Roswell Park Cancer Institute, Buffalo, New York 14263, USA
Cancer Epidemiol Biomarkers Prev 9:49-54. 2000....
Chemoprevention of mammary cancer with Se-allylselenocysteine and other selenoamino acids in the ratC Ip
Department of Experimental Pathology, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
Anticancer Res 19:2875-80. 1999....
Methylselenocysteine modulates proliferation and apoptosis biomarkers in premalignant lesions of the rat mammary glandC Ip
Department of Experimental Pathology, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY 14263, USA
Anticancer Res 21:863-7. 2001..This is achieved by simultaneously modulating certain molecular pathways that are responsible for inhibiting cell proliferation and enhancing apoptosis...
In vitro and in vivo studies of methylseleninic acid: evidence that a monomethylated selenium metabolite is critical for cancer chemopreventionC Ip
Department of Experimental Pathology, Roswell Park Cancer Institute, Buffalo, New York 14263, USA
Cancer Res 60:2882-6. 2000..Methylseleninic acid could be an excellent tool, especially for molecular mechanism studies in cell culture, and some of these attributes are discussed...
Chemical speciation influences comparative activity of selenium-enriched garlic and yeast in mammary cancer preventionC Ip
Department of Experimental Pathology, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
J Agric Food Chem 48:2062-70. 2000....
Chemoprevention with triphenylselenonium chloride in selenium-deficient ratsC Ip
Department of Experimental Pathology, Roswell Park Cancer Institute, Elm and Carlton Streets, Buffalo, NY 14263, USA
Anticancer Res 20:4179-82. 2000..Thus selenium chemoprevention efficacy can be separated experimentally from selenoprotein synthesis using this model system...
Chemical form of selenium, critical metabolites, and cancer preventionC Ip
Department of Breast Surgery, Roswell Park Cancer Institute, Buffalo, New York 14263
Cancer Res 51:595-600. 1991..However, the degree to which this occurs under chemoprevention conditions would argue against the involvement of selenoproteins in the anticarcinogenic action of these selenium compounds...
Conjugated linoleic acid inhibits proliferation and induces apoptosis of normal rat mammary epithelial cells in primary cultureM M Ip
Department of Pharmacology and Therapeutics, Roswell Park Cancer Institute, Buffalo, New York, 14263, USA
Exp Cell Res 250:22-34. 1999..Moreover, the changes in mammary adipocyte PKC expression and lipid composition suggest that the adipose stroma may play an important in vivo role in mediating the ability of CLA to inhibit mammary carcinogenesis...
Efficacy of trimethylselenonium versus selenite in cancer chemoprevention and its modulation by arseniteC Ip
Department of Breast Surgery, Roswell Park Memorial Institute, Buffalo, NY 14263
Carcinogenesis 9:1481-4. 1988..The metabolism of selenium and its perturbation by arsenite are discussed in relation to the above findings...
New approaches to cancer chemoprevention with difluoromethylornithine and seleniteC Ip
Department of Breast Surgery, Roswell Park Memorial Institute, Buffalo, NY 14263
J Natl Cancer Inst 81:839-43. 1989..The mechanism(s) that accounts for the heightened efficacy of combined DFMO and selenite chemoprevention will be discussed...
Differential effect of dietary methionine on the biopotency of selenomethionine and selenite in cancer chemopreventionC Ip
Department of Breast Surgery, Roswell Park Memorial Institute, Buffalo, NY 14263
J Natl Cancer Inst 80:258-62. 1988..These experiments suggest that adequate methionine intake is required for the utilization of selenomethionine for nutritional and anticarcinogenic purposes...
Activity of methylated forms of selenium in cancer preventionC Ip
Department of Breast Surgery, Roswell Park Memorial Institute, Buffalo, New York 14263
Cancer Res 50:1206-11. 1990..The substantial prophylactic efficacy of methylated selenides and the enhancement by arsenite suggest that partially methylated forms of selenium may be directly involved in the anticarcinogenic action of selenium...
Control of rat mammary epithelium proliferation by conjugated linoleic acidC Ip
Department of Experimental Pathology, Roswell Park Cancer Institute, Buffalo, NY 14263, USA
Nutr Cancer 39:233-8. 2001..These observations suggest that the responsiveness of mammary epithelial cells to CLA intervention may be dependent on their proliferative status...
Characterization of the biological activity of gamma-glutamyl-Se-methylselenocysteine: a novel, naturally occurring anticancer agent from garlicY Dong
Department of Experimental Pathology, Roswell Park Cancer Institute, Buffalo, New York 14263, USA
Cancer Res 61:2923-8. 2001..On the basis of the collective biology, biochemistry, and molecular biology data, we conclude that GGMSC is an effective anticancer agent with a mechanism of action very similar to that of MSC...
Mammary cancer chemoprevention by inorganic and organic selenium: single agent treatment or in combination with vitamin E and their effects on in vitro immune functionsC Ip
Department of Breast Surgery, Roswell Park Memorial Institute, Buffalo, NY 14263
Carcinogenesis 8:1763-6. 1987..The metabolism of inorganic versus organic selenium was discussed in relation to their role in the control of neoplastic growth as well as to their selective modulation by vitamin E...
Induction of apoptosis by conjugated linoleic acid in cultured mammary tumor cells and premalignant lesions of the rat mammary glandC Ip
Department of Experimental Pathology, Roswell Park Cancer Institute, Buffalo, New York 14263, USA
Cancer Epidemiol Biomarkers Prev 9:689-96. 2000....
