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Open Source Multicellular Modeling

The Open Virtual Tissues (OpenVT) initiative leads a community of experts in complex multicellular modeling. We are united by a commitment to open-source solutions and cross-disciplinary collaboration. By advancing reproducible and impactful models, we're setting new standards, moving Virtual Tissue Modeling and Simulation from the lab to the global stage.

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New Open Source Community

Launched in 2024, this initiative brings together top biologists, computer scientists, and virtual tissue modelers to advance multicellular virtual tissue modeling and address real-world problems.

Global Expert Collaboration

We convened 88 expert participants from around the world who are helping collect best practices from industry, researchers, regulatory agencies, and practitioners to understand and support advanced multicellular virtual tissue modeling. Currently we are focusing on horizontal solutions and tools in the areas of model validation, reproducibility, and calibration.

Featured Activites

Explore some of our groundbreaking projects from our members

Project Athena

Cross framework Reference Models

Different simulation frameworks, such as CompuCell3D, PhysiCell, Morpheus, Chaste, and others offer varying methodologies and support various concepts and data structures. Creating more robust model exchanges among these frameworks is non-trivial due to several issues, including differences in modeling algorithms, dimensions (2D vs. 3D), and level of detail in representing cells and their interactions. This working group and initiative brings together community members to implement reference models across various frameworks.

Project Hermes

Landscape of Modeling Tools

This group works across the entire community to understand and bridge the differing conceptual, quantitative and computational models by sharing best practices. Ultimately reproducibility and reliable standardization hinges on distinguishing among three critical aspects of modeling: conceptual models (addressing model structure), sharing of models, quantitative models (method-independent), and computational models (including computational methodologies). Finally, addressing the archiving and reusability by scientists and practitioners. An important goal of this group is to speed up onboarding of new researchers to multicell modeling, facilitating their choice of an appropriate modeling approach and simulation framework to solve their scientific problem.

Project Artemis

Bridging methods and models in multicellular simulations

We are bridging gaps in understanding of how different simulation methods affect models by focusing on development of best practices, standards and schemas, with special emphasis on multi-scale, embedded, and coupled simulation methods. We present a review of best practices and ways to standardize descriptions of framework capabilities for framework developers and users including: workflow standardization, common ways to analyze, share, reproduce simulation results and explore the potential for using Artificial Intelligence and Machine Learning. By doing this, researchers and framework developers will develop a better understanding of how different approaches work (through the use of different simulation frameworks) to solving the same problems.

Project Apollo

Developer resource componets

For example, GUI Model Visualization component for use by Scientific Practitioners. We are introducing GUIs that visualize complex models to support scientists and researchers in understanding the intricacies and interconnectedness of various components. Visual representations are particularly beneficial for virtual tissues where complexity can be challenging to grasp without graphical aids and representation. This can include image analysis tools/libraries such as Topological Data Analysis Python libraries, Sensitivity analysis components, VTK components.

Project Poseidon

Models predicting chemical toxicity

These are crucial models for designing safer chemicals and enhancing biomedical research. They are applied in many areas such as:

Developmental Toxicity Model: Simulates early human development to predict chemical impacts on embryonic growth.

Blood Vessel Development Model: Helps understand chemical effects on the formation and function of blood vessels.

Neurovascular Unit Model: Integrates neurons and blood vessels to study their interaction under chemical exposure, impacting brain health and disease progression.

Project Hephaestus

Virtual Cornea Models

Virtual cornea models allow researchers to study the intricate behaviors of the cornea under various conditions and avoid many of the ethical and logistical complexities of in vivo testing. These models can simulate how the cornea reacts to injuries and inflammation, providing valuable insights into the healing processes and into the efficacy of therapeutic interventions. These help to not only enhance our understanding of ocular health but also to accelerate the path toward innovative, safe, and effective therapies.

OpenVT Partners

These are a few of a growing number of our community partners

Who is Involved

The experts and collaborators behind our OpenVT projects

Privacy Policy

OpenVT is committed to protecting the privacy and confidentiality of personal information. Our Privacy Policy, effective from June 5, 2024, explains how we collect, use, and safeguard your data across our digital services, which include websites, web applications, and mobile apps.

Our policy applies to all personal information we handle, covering both collection and usage. We gather identification and contact details, as well as data on website usage, to improve service delivery and tailor our offerings to your preferences. Information is used for administrative purposes, service delivery, personalization, and security responses, among others.

OpenVT does not sell your information. We share data with employees and external service providers.

Our detailed privacy policy can be found here

Why Virtual Tissue Modeling

Those working in the community of Multicellular Modeling or Virtual Tissue Simulation, provide tools that are a new lens through which we can explore and quantify the intricacies of biological systems. These models aim to decipher the dynamics resulting from the interplay of computer science, biochemistry, biology, and physics. A virtual tissue model encompasses cells as active agents, network models within cells, spatial contexts such as diffusible chemical fields, and sometimes non-spatial models, such as pharmacokinetic-pharmacodynamic (PBPK) models for whole-body transport.

How do cells organize into tissues during development?

What are the underlying mechanisms of tissue function?

How do tissues respond to external stimuli or injuries?

What leads to the failure of tissues and the development of diseases?

About

Acknowledgement of funding support

This project has been funded by the National Science Foundation Award Number 2303695 “POSE: PHASE II: Open VT - A Standardized Ecosystem for Virtual Tissue Simulation”.

This is a NSF-funded project advancing OpenVT, an open-source community initiative designed to broaden the use and development of Virtual Tissues (VTs) simulations. These models are both normal and diseased biological states. VTs are used in drug research and the creation of Medical Digital Twins, enabling researchers to conduct virtual experiments that enrich our understanding of complex biological systems while complementing traditional lab studies. This community will enrich and unify existing modeling frameworks, equipping the biomedical community with the necessary tools, resources, and standards to enhance collaborative efforts. OpenVT will concentrate on leading open-source multicellular modeling and integrate where possible with network models of signaling and metabolism to enhance model reproducibility and interoperability. We promote scientific progress in biotechnology and medicine.

Additionally, the project promotes discussion, collaboration, and cross-framework development, supporting educational initiatives to advance STEM education and train future scientists. All project outcomes will eventually be accessible at OpenVT.org.

Additional Details can be found here https://www.nsf.gov/awardsearch/showAward?AWD_ID=2303695

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