Inositol hexaphosphate (InsP6, phytic acid) is ubiquitous in the plant kingdom and is abundant in cereals and legumes. In much smaller amounts InsP6 and its lower phosphorylated forms (InsP 1-5) are contained in most mammalian cells, where they are important in regulating vital cellular functions. Both in vivo and in vitro experiments have suggested striking anticancer potential (preventive as well as therapeutic) for InsP6 with and without inositol. In addition to reduce cell proliferation, InsP6 increases differentiation of malignant cells often resulting in reversion to the normal phenotype. InsP6 is quickly absorbed from the rat stomach and upper intestine and distributed as inositol and InsP1. In vitro it is instantaneously taken up by malignant cells undergoing variable dephosphorylation to inositol and InsP 1-5, pointing toward their role in mediating the action of InsP6. Because InsP6 is high in high-fiber diets, our studies also may explain, at least in part, the epidemiologic observation showing high-fiber diets are associated with a lower incidence of certain cancers. Although further studies are needed to elucidate the mechanism(s) of this action, inclusion of InsP6 in our strategies for cancer prevention and therapy is warranted.
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Journal of nutrition
ISSN
0022-3166
出版者
American Chemical Society
其它主题
Dephosphorylation; Ferric ions; Inositol phosphates; Dietary fiber; Incidence; Anticholesteremic agents; Hypercalciuria; Intercellular spaces; Dose response
语言
英语
注释
In the special issue: first international symposium on the role of soy in preventing and treating chronic disease / edited by m. messina and j.w. erdman. proceedings of a symposium held february 20-23, 1994, mesa, arizona.
2019-12-05
类型
Text; Journal Article
2024-02-27
MODS