Dataset Information

Designing Endocrine Disruption Out of the Next Generation of Chemicals.

ABSTRACT: A central goal of green chemistry is to avoid hazard in the design of new chemicals. This objective is best achieved when information about a chemical's potential hazardous effects is obtained as early in the design process as feasible. Endocrine disruption is a type of hazard that to date has been inadequately addressed by both industrial and regulatory science. To aid chemists in avoiding this hazard, we propose an endocrine disruption testing protocol for use by chemists in the design of new chemicals. The Tiered Protocol for Endocrine Disruption (TiPED) has been created under the oversight of a scientific advisory committee composed of leading representatives from both green chemistry and the environmental health sciences. TiPED is conceived as a tool for new chemical design, thus it starts with a chemist theoretically at "the drawing board." It consists of five testing tiers ranging from broad in silico evaluation up through specific cell- and whole organism-based assays. To be effective at detecting endocrine disruption, a testing protocol must be able to measure potential hormone-like or hormone-inhibiting effects of chemicals, as well as the many possible interactions and signaling sequellae such chemicals may have with cell-based receptors. Accordingly, we have designed this protocol to broadly interrogate the endocrine system. The proposed protocol will not detect all possible mechanisms of endocrine disruption, because scientific understanding of these phenomena is advancing rapidly. To ensure that the protocol remains current, we have established a plan for incorporating new assays into the protocol as the science advances. In this paper we present the principles that should guide the science of testing new chemicals for endocrine disruption, as well as principles by which to evaluate individual assays for applicability, and laboratories for reliability. In a 'proof-of-principle' test, we ran 6 endocrine disrupting chemicals (EDCs) that act via different endocrinological mechanisms through the protocol using published literature. Each was identified as endocrine active by one or more tiers. We believe that this voluntary testing protocol will be a dynamic tool to facilitate efficient and early identification of potentially problematic chemicals, while ultimately reducing the risks to public health.

SUBMITTER: Schug TT

PROVIDER: S-EPMC4125359 | biostudies-literature | 2013 Jan

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

Designing Endocrine Disruption Out of the Next Generation of Chemicals.

Schug T T TT Abagyan R R Blumberg B B Collins T J TJ Crews D D DeFur P L PL Dickerson S M SM Edwards T M TM Gore A C AC Guillette L J LJ Hayes T T Heindel J J JJ Moores A A Patisaul H B HB Tal T L TL Thayer K A KA Vandenberg L N LN Warner J J Watson C S CS Saal F S Vom FS Zoeller R T RT O'Brien K P KP Myers J P JP

Green chemistry : an international journal and green chemistry resource : GC 20130101 1

A central goal of green chemistry is to avoid hazard in the design of new chemicals. This objective is best achieved when information about a chemical's potential hazardous effects is obtained as early in the design process as feasible. Endocrine disruption is a type of hazard that to date has been inadequately addressed by both industrial and regulatory science. To aid chemists in avoiding this hazard, we propose an endocrine disruption testing protocol for use by chemists in the design of new ...[more]

PMID: 25110461

Similar Datasets

Project description:Background Organ-on-chip technology has accelerated in vitro preclinical research of the vascular system, and a key strength of this platform is its promise to impact personalized medicine by providing a primary human cell-culture environment where endothelial cells are directly biopsied from individual tissue or differentiated through stem cell biotechniques. However, these methods are difficult to adopt in laboratories, and often result in impurity and heterogeneity of cells. This limits the power of organ-chips in making accurate physiological predictions. In this study, we report the use of blood-derived endothelial cells as alternatives to primary and induced pluripotent stem cell-derived endothelial cells. Methods and Results Here, the genotype, phenotype, and organ-chip functional characteristics of blood-derived outgrowth endothelial cells were compared against commercially available and most used primary endothelial cells and induced pluripotent stem cell-derived endothelial cells. The methods include RNA-sequencing, as well as criterion standard assays of cell marker expression, growth kinetics, migration potential, and vasculogenesis. Finally, thromboinflammatory responses under shear using vessel-chips engineered with blood-derived endothelial cells were assessed. Blood-derived endothelial cells exhibit the criterion standard hallmarks of typical endothelial cells. There are differences in gene expression profiles between different sources of endothelial cells, but blood-derived cells are relatively closer to primary cells than induced pluripotent stem cell-derived. Furthermore, blood-derived endothelial cells are much easier to obtain from individuals and yet, they serve as an equally effective cell source for functional studies and organ-chips compared with primary cells or induced pluripotent stem cell-derived cells. Conclusions Blood-derived endothelial cells may be used in preclinical research for developing more robust and personalized next-generation disease models using organ-on-chips.

Dataset Information

Designing Endocrine Disruption Out of the Next Generation of Chemicals.

Publications

Designing Endocrine Disruption Out of the Next Generation of Chemicals.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets