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Related Experiment Video

Updated: May 12, 2026

Three-Dimensional Printing of a Complex Aortic Anomaly

Three-Dimensional Printing of a Complex Aortic Anomaly

Published on: November 1, 2018

Development of the human aortic arch system captured in an interactive three-dimensional reference model.

M Sameer Rana¹, Aleksander Sizarov, Vincent M Christoffels

¹Heart Failure Research Center, Department of Anatomy, Embryology and Physiology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands.

American Journal of Medical Genetics. Part A

|April 25, 2013

Summary

Human genome variations like 22q11.2 microdeletion risk congenital defects. This study provides 3D human aortic arch models and molecular data, supporting animal-to-human extrapolations for congenital heart disease research.

Keywords:

TBX1 aortic arch malformations aortic arch system human embryos

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Area of Science:

Developmental Biology
Human Genetics
Cardiovascular Science

Background:

Human genome variations, such as 22q11.2 microdeletion, are linked to congenital defects, including aortic arch malformations.
Animal models offer insights into aortic arch development, but a human reference model is lacking for validating these findings.
Understanding human aortic arch development is crucial for interpreting congenital anomalies.

Purpose of the Study:

To create interactive 3D reconstructions of the developing human aortic arch system.
To map protein distribution of key developmental markers, including TBX1.
To provide a human reference model for genetic and molecular studies of congenital heart disease.

Main Methods:

Interactive three-dimensional reconstructions of the developing human aortic arch.
Immunohistochemical analysis of protein distribution for developmental markers (TBX1, TBX2, AP2α, Ki67).
Integration of morphological and molecular data for comprehensive analysis.

Main Results:

Novel 3D reconstructions reveal previously unappreciated aspects of human aortic arch development.
TBX1 expression patterns are detailed in pharyngeal mesenchyme and epithelia, with limited expression in pharyngeal arch artery endothelium.
Postulation that pulmonary arteries originate from the aortic sac, not the sixth pharyngeal arch arteries, supported by developmental marker data.

Conclusions:

The generated 3D reconstructions and expression data serve as a valuable human reference model.
Findings support the extrapolation of data from animal models to human development.
The study facilitates future genetic and molecular analyses for congenital heart disease research.