Plastics Chemical BBP Exposure May 'Program' Obesity

Share this content:
Plastics Chemical BBP Exposure May 'Program' Obesity
Plastics Chemical BBP Exposure May 'Program' Obesity

WEDNESDAY, May 25, 2016 (HealthDay News) -- Benzyl butyl phthalate (BBP) regulates the mesenchymal stem cell (MSC) toward adipogenesis by inducing epigenetic stress, according to research published online May 6 in Molecular and Cellular Endocrinology.

Mahua Choudhury, Ph.D., assistant professor at the Texas A&M Health Science Center Irma Lerma Rangel College of Pharmacy in Kingsville, and colleagues investigated the potential of BBP to regulate the MSC epigenome to drive adipogenesis. The team used animal stem cells to assess changes to the epigenome of the stem cell line with BBP exposure versus a control.

The researchers found that compared with control, BBP exposure enhanced lipid accumulation and adipogenesis in a dose-dependent manner (P < 0.001). Compared with DMSO, increasing concentrations of BBP resulted in significant upregulations in adipogenesis markers, PPARγ (P < 0.001), C/EBPα (P < 0.01), and aP2 (P < 0.001). BBP correlated with enhanced acetylation and decreased dimethylation of H3K9. Increases in histone acetyltransferases, p300, and GCN5 gene expression were seen with 50 µm BBP. BBP exposure correlated with significant downregulation of histone deacetylases (HDACs), HDAC3 and HDAC10, and histone methyltransferases, SETDB1 and G9a. During BBP exposure, PPARγ knockdown correlated with decreased H3K9ac and rescued H3K9me2.

"Phthalates have recently been associated with obesity, but this was the first time we were able to show the mechanism by which BBP may cause fat accumulation and program the stem cell to become obese via an epigenetic balance," Choudhury said in a news release.

Full Text (subscription or payment may be required)

Share this content:

is free, fast, and customized just for you!

Already a member?

Sign In Now »


Sign up for myCME e-newsletters


Drug Lookup

Browse drugs by: BrandGenericDisease


More in Home

ASTRO: No Survival Benefit for Adding EBT to Brachytherapy

ASTRO: No Survival Benefit for Adding EBT to ...

Addition of external beam therapy doesn't improve five-year progression-free survival in prostate cancer

ASTRO: Fewer Side Effects With IMRT in Cervical, Endometrial CA

ASTRO: Fewer Side Effects With IMRT in Cervical, ...

Patients in conventional radiotherapy arm had more high-level adverse events than those in IMRT arm

Many Doctors Reluctant to Reveal Mental Health Issues

Many Doctors Reluctant to Reveal Mental Health Issues

Perceived stigma, fear of career repercussions hinder treatment, study suggests

is free, fast, and customized just for you!

Already a member?

Sign In Now »