Development of a Three-Dimensional Adipose Tissue Model for Studying Embryonic Exposures to Obesogenic Chemicals.

Abstract:

:Obesity is a rising issue especially in the United States that can lead to heart problems, type II diabetes, and respiratory problems. Since the 1970s, obesity rates in the United States have more than doubled in adults and children. Recent evidence suggests that exposure to certain chemicals, termed "obesogens," in utero may alter metabolic processes, predisposing individuals to weight gain. There is a need to develop a three-dimensional human tissue system that is able to model the effects of obesogens in vitro in order to better understand the impact of obesogens on early development. Human embryonic-derived stem cells in three-dimensional collagen embedded silk scaffolds were exposed to three different obesogens: Bisphenol A (BPA), Bisphenol S (BPS), and Tributyltin (TBT). The exposed tissues accumulated triglycerides and increased expression of adipogenic genes (Perilipin (PLIN1), peroxisome proliferator-activated receptor gamma (PPARy), fatty acid binding protein 4 (FABP4)) compared to equivalent control cultures with no obesogen exposure. These cultures were also compared to human adult stem cell cultures, which did not respond the same upon addition of obesogens. These results demonstrate the successful development of a representative tissue model of in utero obesogen exposures. This tissue system could be used to determine mechanisms of action of current obesogens and to screen other potential obesogens.

journal_name

Ann Biomed Eng

authors

Wang RY,Abbott RD,Zieba A,Borowsky FE,Kaplan DL

doi

10.1007/s10439-016-1752-x

subject

Has Abstract

pub_date

2017-07-01 00:00:00

pages

1807-1818

issue

7

eissn

0090-6964

issn

1573-9686

pii

10.1007/s10439-016-1752-x

journal_volume

45

pub_type

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