Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

3,3’-Diindolylmethane Exhibits Significant Metabolism After Oral Dosing in Humans

Journal Article · · Drug Metabolism and Disposition

3,3’-Diindolylmethane (DIM), a major phytochemical derived from ingestion of cruciferous vegetables such as Brussels sprouts, is also a dietary supplement. In preclinical models, DIM is an effective cancer chemopreventive agent and has been studied in a number of clinical trials. Previous pharmacokinetic studies in preclinical and clinical models have not reported DIM metabolites in plasma or urine following oral dosing and the pharmacological actions of DIM on target tissues is assumed to be solely via the parent compound. Seven subjects (6 males and 1 female) ranging from 26-65 years of age, on a cruciferous vegetable-restricted diet prior to and during the study, took 2 BioResponse-DIM® 150 mg capsules (45.3 mg DIM/capsule) in the evening for one week with a final dose the morning of the first blood draw. A complete time course was performed with plasma and urine collected over 48 hours and analyzed by UPLC-MS/MS. In addition to parent DIM, two mono-hydroxylated (2-ox- and 3-methylenehydroxy-DIM) and 1 dihydroxylated (3-methylenehydroxy-2-ox-DIM) metabolites, along with their sulfate and glucuronide conjugates, were present in both plasma and urine. The results reported here are indicative of significant phase 1 and phase 2 metabolism and differ from previous pharmacokinetic studies in rodents and humans which reported only parent DIM present following oral administration.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830
OSTI ID:
1827145
Report Number(s):
PNNL-SA-158910
Journal Information:
Drug Metabolism and Disposition, Journal Name: Drug Metabolism and Disposition Journal Issue: 8 Vol. 49
Country of Publication:
United States
Language:
English

References (50)

Cruciferous Vegetable Feeding Alters UGT1A1 Activity: Diet- and Genotype-Dependent Changes in Serum Bilirubin in a Controlled Feeding Trial journal March 2009
Induction of Hepatic CYPIA by Indole-3-Carbinol in Protection Against Aflatoxin B1 Hepatocarcinogenesis in Rainbow Trout journal October 1995
Cruciferous vegetable intake and the risk of human cancer: epidemiological evidence: Conference on ‘Multidisciplinary approaches to nutritional problems’ Symposium on ‘Nutrition and health’ journal December 2008
Cruciferous vegetable consumption alters the metabolism of the dietary carcinogen 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP) in humans journal April 2004
Fate of 3,3‘-Diindolylmethane in Cultured MCF-7 Human Breast Cancer Cells journal February 2006
A Review of the Clinical Efficacy and Safety of Cruciferous Vegetable Phytochemicals journal June 2007
Single-Dose Pharmacokinetics and Tolerability of Absorption-Enhanced 3,3'-Diindolylmethane in Healthy Subjects journal October 2008
Role of BioResponse 3,3′-Diindolylmethane in the Treatment of Human Prostate Cancer: Clinical Experience journal October 2015
Brassica Vegetables and Cancer Prevention book January 1999
Physiological Modeling of Formulated and Crystalline 3,3′-Diindolylmethane Pharmacokinetics Following oral Administration in mice journal May 2004
3,3′-Diindolylmethane, a Major Condensation Product of Indole-3-carbinol, Is a Potent Estrogen in the Rainbow Trout journal February 2001
A randomized, placebo-controlled trial of diindolylmethane for breast cancer biomarker modulation in patients taking tamoxifen journal May 2017
Research on cruciferous vegetables, indole-3-carbinol, and cancer prevention: A tribute to Lee W. Wattenberg journal May 2016
The anticarcinogen 3,3′-diindolylmethane is an inhibitor of cytochrome P-450 journal August 1995
Certain photooxidized derivatives of tryptophan bind with very high affinity to the Ah receptor and are likely to be endogenous signal substances. journal November 1987
Inhibitory effects of a dietary phytochemical 3,3′-diindolylmethane on the phenobarbital-induced hepatic CYP mRNA expression and CYP-catalyzed reactions in female rats journal July 2008
Pilot Study: Effect of 3,3′-Diindolylmethane Supplements on Urinary Hormone Metabolites in Postmenopausal Women With a History of Early-Stage Breast Cancer journal November 2004
Cruciferous Vegetable Intake and Cancer Prevention: Role of Nutrigenetics: Fig. 1 journal March 2009
The cancer chemopreventive actions of phytochemicals derived from glucosinolates journal May 2008
Aromatic hydrocarbon responsiveness-receptor agonists generated from indole-3-carbinol in vitro and in vivo: comparisons with 2,3,7,8-tetrachlorodibenzo-p-dioxin. journal November 1991
The Brassica-derived phytochemical indolo[3,2-b]carbazole protects against oxidative DNA damage by aryl hydrocarbon receptor activation journal February 2016
Differential modulation of dibenzo[def,p]chrysene transplacental carcinogenesis: Maternal diets rich in indole-3-carbinol versus sulforaphane journal July 2013
Double-blind randomized placebo-controlled multicenter clinical trial (phase IIa) on diindolylmethane’s efficacy and safety in the treatment of CIN: implications for cervical cancer prevention journal December 2015
Single-Dose and Multiple-Dose Administration of Indole-3-Carbinol to Women: Pharmacokinetics Based on 3,3′-Diindolylmethane journal December 2006
Diindolylmethane Derivatives: Potent Agonists of the Immunostimulatory Orphan G Protein-Coupled Receptor GPR84 journal May 2017
CYP1A2, GSTM1 , and GSTT1 Polymorphisms and Diet Effects on CYP1A2 Activity in a Crossover Feeding Trial journal October 2009
Targets for indole-3-carbinol in cancer prevention journal February 2005
Molecular Targets and Anticancer Potential of Indole-3-Carbinol and Its Derivatives journal June 2005
Determination of resveratrol and its sulfate and glucuronide metabolites in plasma by LC–MS/MS and their pharmacokinetics in dogs journal February 2012
Indole-3-carbinol as a chemopreventive and anti-cancer agent journal April 2008
Indole-3-Carbinol and 3-3′-Diindolylmethane Antiproliferative Signaling Pathways Control Cell-Cycle Gene Transcription in Human Breast Cancer Cells by Regulating Promoter–Sp1 Transcription Factor Interactions journal July 2003
Gut dysbiosis induced by cardiac pressure overload enhances adverse cardiac remodeling in a T cell-dependent manner journal October 2020
Sulfation of indoxyl by human and rat aryl (phenol) sulfotransferases to form indoxyl sulfate journal June 2002
Structure—activity relationships of dietary indoles: A proposed mechanism of action as modifiers of xenobiotic metabolism journal July 1987
Indole-3-Carbinol Triggers Aryl Hydrocarbon Receptor-dependent Estrogen Receptor (ER)α Protein Degradation in Breast Cancer Cells Disrupting an ERα-GATA3 Transcriptional Cross-Regulatory Loop journal April 2010
Cruciferous vegetables and human cancer risk: epidemiologic evidence and mechanistic basis journal March 2007
Urinary 3,3′-Diindolylmethane: A Biomarker of Glucobrassicin Exposure and Indole-3-Carbinol Uptake in Humans journal December 2013
High-performance liquid chromatographic analysis of anticarcinogenic indoles in Brassica oleracea journal January 1987
The Pneumotoxin 3-Methylindole Is a Substrate and a Mechanism-Based Inactivator of CYP2A13, a Human Cytochrome P450 Enzyme Preferentially Expressed in the Respiratory Tract journal July 2009
Role of Mouse Cytochrome P450 Enzymes of the Cyp2abfgs Subfamilies in the Induction of Lung Inflammation by Cigarette Smoke Exposure journal August 2019
A Phase I Study of Indole-3-Carbinol in Women: Tolerability and Effects journal August 2005
Comparative preclinical pharmacokinetics study of 3,3′-diindolylmethane formulations: is personalized treatment and targeted chemoprevention in the horizon? journal December 2013
Toxicokinetics of benzo[a]pyrene in humans: Extensive metabolism as determined by UPLC-accelerator mass spectrometry following oral micro-dosing journal February 2019
First results of the double-blind randomized placebo-controlled multicenter clinical trial of DIM-based therapy designed as personalized approach to reverse prostatic intraepithelial neoplasia (PIN) journal April 2016
Chemopreventive properties of 3,3′-diindolylmethane in breast cancer: evidence from experimental and human studies journal May 2016
Resveratrol Modulates Drug- and Carcinogen-Metabolizing Enzymes in a Healthy Volunteer Study journal August 2010
Bioavailability and new biomarkers of cruciferous sprouts consumption journal October 2017
Mechanism of action of dietary chemoprotective agents in rat liver: induction of phase I and II drug metabolizing enzymes and aflatoxin B1 metabolism journal September 1997
Ah receptor binding properties of indole carbinols and induction of hepatic estradiol hydroxylation journal March 1993
CXCR4 and CXCL12 down-regulation: A novel mechanism for the chemoprotection of 3,3′-diindolylmethane for breast and ovarian cancers journal June 2008

Similar Records

Benzo[$\mathcal{a}$]pyrene toxicokinetics in humans following dietary supplementation with 3,3'-diindolylmethane (DIM) or Brussels sprouts
Journal Article · Thu Jan 12 23:00:00 EST 2023 · Toxicology and Applied Pharmacology · OSTI ID:1922417

3,3′-Diindolylmethane, but not indole-3-carbinol, inhibits histone deacetylase activity in prostate cancer cells
Journal Article · Sat Sep 15 00:00:00 EDT 2012 · Toxicology and Applied Pharmacology · OSTI ID:22215913

Related Subjects