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IP6 & inositol.

Molecular mechanisms, experimental findings, and human studies.

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Molecular model of IP6 with six phosphate groups

Figure 1. Inositol hexaphosphate, C6H18O24P6: six phosphate groups bonded to a six-carbon inositol ring.

CarbonHydrogenOxygenPhosphorus

A guided introduction

New to the subject? Read these four chapters in order. Each one opens a page of the collection.

  1. What IP6 is

    A phosphate-rich molecule found in cereal grains, legumes, and seeds, and present in human cells.

    Read the molecular science

  2. How it is studied

    Cell cultures, animal experiments, and human studies each answer a different kind of question.

    Learn how to read a study

  3. What has been reported

    Findings across cancer biology, immunology, metabolism, and neuroscience, with their limits.

    Browse the research areas

  4. Where the research began

    Experiments started at the University of Maryland School of Medicine in 1985.

    Meet the scientist

Research topics

All topics

Molecular mechanisms

Iron binding, cell signaling, differentiation, and epigenetic regulation.

Cancer biology

Proliferation, apoptosis, and tumor development in experimental models.

Clinical investigations

Human studies, study design, and the limits of the available evidence.

Immunology

Natural killer cell activity and experimental immune responses.

Metabolism & mineral biology

Glucose metabolism, mineral crystallization, and cardiovascular research.

Neuroscience

Oxidative stress and neuroprotection in preclinical models.

Selected primary literature

Studies from the research collection. Publication dates refer to the original papers.

Review2026

IP6 and breast cancer: efficacy, mechanisms, and clinical application

Chatree S, Saverino A, Chatsiriwech J, et al. Medical Research Archives. 2026;14(7).

Study design Review of preclinical and clinical studies.

The authors review the evidence on IP6 and inositol in breast cancer: effects on proliferation, differentiation, and apoptosis of breast cancer cells, the signaling pathways involved, and clinical reports of IP6 with inositol given alongside chemotherapy. They conclude that larger clinical trials are needed.

DOI
Human study2010PMID: 20152024

IP6 + inositol during breast cancer chemotherapy

Bacic I, et al. Journal of Experimental & Clinical Cancer Research. 2010;29:12.

Study design Randomized, placebo-controlled pilot study; 14 participants.

The investigators reported differences in quality of life, functional status, and blood-count outcomes during chemotherapy. The small sample limits the conclusions.

PubMed abstract Full text DOI
Cell study2010PMID: 20127021

Proliferation and apoptosis in colorectal cancer cell lines

Schroterova L, et al. Oncology Reports. 2010;23(3):787-793.

Study design Human colorectal carcinoma cell lines: HT-29, SW-480, and SW-620.

IP6 and inositol were studied individually and in combination. Effects varied with concentration and cell line; inositol enhanced apoptosis-related activity with IP6 in the tested models.

PubMed abstract
Animal study1989PMID: 2752519

Inositol phosphates and tumor formation in CD-1 mice

Shamsuddin AM, Ullah A, Chakravarthy AK. Carcinogenesis. 1989;10(8):1461-1463.

Study design Experimental study in CD-1 mice.

An early University of Maryland investigation of inositol and IP6 in cell proliferation and tumor formation. Animal experiments provide biological evidence; they do not establish efficacy in people.

PubMed abstract DOI
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Research correspondence

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