Abstract

The prevalence of congenital anomalies in newborns is estimated to be as high as 6%, many of which involving the cranio-/orofacial region. Such malformations, including several syndromes, are usually identified prenatally, at birth, or rarely later in life. The lack of clinically relevant human cell models of these often very rare conditions, the societal pressure to avoid the use of animal models and the fact that the biological mechanisms between rodents and human are not necessarily identical, makes studying cranio-/orofacial anomalies challenging. To overcome these limitations, we are developing a living cell repository of healthy and diseased cells derived from the cranio-/orofacial region. Ultimately, we aim to make patient-derived cells, which retain the molecular and genetic characteristics of the original anomaly or disease in vitro, available for the scientific community. We report our efforts in establishing a human living cell bank derived from the cranio-/orofacial region of otherwise discarded tissue samples, detail our strategy, processes and quality checks. Such specific cell models have a great potential for discovery and translational research and might lead to a better understanding and management of craniofacial anomalies for the benefit of all affected individuals.

Highlights

  • Craniofacial development is a complex process that requires orchestrated interactions of multiple cell types derived from all germ layers (Kindberg and Bush, 2019)

  • The opportunity to collect both cell types from the same individual will allow the establishment of relevant 3D-co-culture systems that closely mimic the in vivo situation, or the analysis of the preferred individual cell type in line with specific research interests in the future

  • Discovery biomedical research is the foundation for an everincreasing gain of knowledge concerning the biological processes underlying physiological as well as pathological craniofacial development

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Summary

Introduction

Craniofacial development is a complex process that requires orchestrated interactions of multiple cell types derived from all germ layers (Kindberg and Bush, 2019). NCCs arise at the neural plate border, undergo an epithelial-mesenchymal transition (EMT), and are guided to the periphery where they form the structures of the head and the face (Hall, 2000; Cordero et al, 2011; Green et al, 2015; Siismets and Hatch, 2020). All these intricate steps rely on precise spatio-temporally regulated networks. CFAs can appear in isolation, as part of a syndrome with defects due to mutations in single genes or chromosomal abnormalities, or in combination with other defects without an identified genetic background

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