This course familiarizes students with the novel concepts being used to revamp regulatory toxicology in response to a breakthrough National Research Council Report “Toxicity Testing in the 21st Century: A Vision and a Strategy.” We present the latest developments in the field of toxicology—the shift from animal testing toward human relevant, high content, high-throughput integrative testing strategies. Active programs from EPA, NIH, and the global scientific community illustrate the dynamics of safety sciences.
This model will give you a broad introduction to the Toxicology 21st century (Tox21c) field and familiarize you with the main document, which summarize the main ideas and principles of Tox21c.
Center for Alternatives to Animal Testing•5 minutes
Toxicology of the Fifteenth to Twentieth Centuries•15 minutes
Toxicology for the Twenty-First Century•15 minutes
Historical Perspective•18 minutes
The First Report: Toxicity Testing for Assessment of Environmental Agents•12 minutes
The Second Report: Toxicity Testing in the 21st Century: A Vision and A Strategy Vision and Its Components•22 minutes
The Second Report: Toxicity Testing in the 21st Century: A vision and A Strategy Implementation•14 minutes
3 readings•Total 40 minutes
useful links•20 minutes
supporting reading material•10 minutes
Supporting reading material•10 minutes
1 assignment•Total 4,320 minutes
Module 1 Quiz•4,320 minutes
1 discussion prompt•Total 10 minutes
Drivers of change•10 minutes
Module 2
Module 2•4 hours to complete
Module details
This module will discuss how ToxCast and Tox21 technologies can be used in practice. The US EPA Endocrine Disruptor Screening Program will be discussed in detail and we will demonstrate how the ToxCast platform replaced in vivo tiered approaches in EDSP and, thus, acelerate the process of . In the second lesson of this module, the development of in silico models for toxicity testing will be discussed.
Chemical report and endocrine disrpution potency prediction•60 minutes
2 discussion prompts•Total 20 minutes
Tox21 vs. ToxCast•10 minutes
AOP•10 minutes
Module 3
Module 3•3 hours to complete
Module details
This module will familiarize you with the Human Toxome Project run by Johns Hopkins University in collaboration with several university, industry, and research agencies. Omics technologies, their advantages and disadvantages, as well as concepts of Adverse Outcome Pathways (AOP) and Pathways of Toxicity (PoT) will be discussed.
Mechanistic Toxicology and Pathway Mapping at the Basics of 21st Century Toxicology•17 minutes
The Concept of the Human Toxome Project•21 minutes
Concept and Tool Devlopment•11 minutes
Progress•8 minutes
Conclusions and Prospectives•8 minutes
Introduction: What Is a Pathway of Toxicity, and Why Do We Need Them?•5 minutes
Omics Technologies and High-Throughput Data•6 minutes
Interpreting Omics Data•11 minutes
Using Network Approaches to Understand Toxicity Mechanisms•19 minutes
2 readings•Total 20 minutes
Supporting reading materials•10 minutes
Supporting reading material•10 minutes
1 assignment•Total 30 minutes
Module 3 Quiz•30 minutes
1 discussion prompt•Total 10 minutes
Challenges in implementing omics technologies for high throughput assays•10 minutes
Module 4
Module 4•5 hours to complete
Module details
The first lesson in this module will explain the concept of read-across, why it is important for regulatory risk assessment, and how it can be implemented by industry in response to REACH legislation. The organotypic cultures lesson will teach you about existing in vitro cell-based models starting from simple monolayer cultures of cell lines and ending with complex combined organ-on-a-chip and human-on-a-chip approaches.
The Need, and Opportunity, for a New Approach to Toxicology, Including Predictive Tools•7 minutes
The Concept of Toxicological (Biological) Pathways, e.g., “Adverse Outcome Pathways,” Is the Basis of Predictive Toxicology•5 minutes
Introduction to the OECD AOP Framework•10 minutes
Building, Evaluating, and Using AOPs in Safety Decisions•6 minutes
Online Tools Available to Everyone, Including an Online AOP Course•4 minutes
Welcome to Module 4•3 minutes
Introduction to Read-Across•19 minutes
Good Read-Across Practice•21 minutes
Supporting Read-Across with Biological Data•13 minutes
Creating a Database of Toxicity•12 minutes
Creating an Automated Tool for Read-Across•10 minutes
Cell Sources for In Vitro Models•12 minutes
Monolayer Cultures•5 minutes
Advanced Cell Cultures: Microphysiological Systems (MPS)•7 minutes
3D Cultures•26 minutes
Microfluidics•3 minutes
Organ-on-Chip, Body-on-Chip•14 minutes
Good Cell Culture Practice•7 minutes
3 readings•Total 30 minutes
Supporting reading material•10 minutes
Supporting reading material•10 minutes
Useful links•10 minutes
2 assignments•Total 60 minutes
Mid-term exam•30 minutes
Module 4 Quiz•30 minutes
1 discussion prompt•Total 10 minutes
Read-across•10 minutes
Module 5
Module 5•2 hours to complete
Module details
This module will teach you the role of miRNA and epigenetics in toxicology and environmental health.
What's included
6 videos1 reading1 assignment1 discussion prompt
Show info about module content
6 videos•Total 41 minutes
Welcome to Module 5•1 minute
MicroRNA and Epigenetics•5 minutes
Epigenetics and Environment•7 minutes
MicroRNA: Biogenesis and Functions•12 minutes
Role of MicroRNA in Development•7 minutes
MicroRNA in Toxicology•9 minutes
1 reading•Total 10 minutes
Supporting reading material•10 minutes
1 assignment•Total 30 minutes
Module 5 Quiz•30 minutes
1 discussion prompt•Total 10 minutes
MicroRNAs potential to be biomarkers for diseases and toxicity•10 minutes
Module 6
Module 6•4 hours to complete
Module details
In this module you will learn about important component of in vitro toxicology such as in vitro to in vivo extrapolation (IVIVE) and physiologically based biokinetic modeling. You will learn why it is important to consider biokinetics in vitro and see some example of biokinetics modeling in vitro. This lesson will also give you a biometry prospective of in vitro toxicology. You will learn which methods can be used to analyze big data.
What's included
8 videos3 readings1 assignment1 peer review
Show info about module content
8 videos•Total 106 minutes
Welcome to Module•3 minutes
Physiologically Based Biokinetic Modeling•10 minutes
Application of QIVIVE to in Vitro Testing•14 minutes
Challenges for Conducting QIVIVE•15 minutes
Quantitative in Vitro to in Vivo Extrapolation•25 minutes
Definition of Biometry/Biostatistics and Revisiting Some Statistical Basics•17 minutes
Types of Tox21 Data and Data Mining of External Data Sources•9 minutes
Bioinformatics Tools for the Interpretation of Tox21 Data•14 minutes
3 readings•Total 30 minutes
Supporting reading material•10 minutes
Supporting reading material•10 minutes
Useful links•10 minutes
1 assignment•Total 30 minutes
Module 6 Quiz•30 minutes
1 peer review•Total 60 minutes
Peer Assessment 2: Summarizing Your Knowledge on Tools and Applications in Toxicology in the 21st Century•60 minutes
Module 7
Module 7•75 hours to complete
Module details
In this lesson you will learn about integrated testing strategies and how they differ from individual tests or test batteries. Also a wrap-up lesson "beyond chemical" will summaries your knowledge from this course and give a out-look for further directions in the field of alternatives to animal testing.
What's included
11 videos2 readings2 assignments
Show info about module content
11 videos•Total 143 minutes
Welcome to Module 7•3 minutes
Why Integrated Testing Strategies?•6 minutes
What is an Integrated Testing Strategy?•16 minutes
How to Compose Integrated Testing Strategies•37 minutes
Strategies for Integrated Testing Strategies•6 minutes
Quality Assurance of integrated Testing Strategies•7 minutes
Legal Background•13 minutes
Economic Background•23 minutes
Tox-21c for Drug Safety•12 minutes
Green Toxicology as Non-regulatory Tox-21c Approaches•12 minutes
Conclusions and Prospects•7 minutes
2 readings•Total 20 minutes
Supporting reading material•10 minutes
Supporting reading material•10 minutes
2 assignments•Total 4,350 minutes
Final Exam•4,320 minutes
Module 7 Quiz•30 minutes
Instructors
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Learner reviews
4.6
90 reviews
5 stars
80%
4 stars
10%
3 stars
5.55%
2 stars
1.11%
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3.33%
Showing 3 of 90
S
S
5·
Reviewed on May 3, 2018
Very nicely designed course. The instructors offer an excellent and easy to understand overview of a range of promising Tox21 tools and approaches using good examples and illustrations.
S
SB
4·
Reviewed on Mar 27, 2021
Helpful Course in Understanding Current trend in toxicological testings
V
VI
5·
Reviewed on May 25, 2020
one of the best course helps students & researcher about what are challenges faced in toxicology in 21 century and finds the routes to develop new routes and methods for toxicology tests
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