Israeli Scientists Generate Embryo Models from Mouse Stem Cells in Artificial Wombs: Why Does This Matter for International Families?

Janaína Albuquerque
22 hours ago
4 min read

Updated: 19 hours ago

In 2023, researchers in Israel achieved a remarkable scientific milestone by creating mouse embryo models from stem cells—without the use of eggs or sperm—and successfully growing them in artificial wombs. On the one hand, this breakthrough opens new possibilities for reproductive medicine and advances our understanding of early embryonic development. On the other, it raises profound legal and ethical questions about how scientific innovation can progress responsibly while protecting the interests of individuals, families, and society.

The technology has since attracted international attention. Researchers in the United States and China have explored similar approaches with larger animals, including cattle and non-human primates. In the mouse experiments, the synthetic embryo models developed early structures resembling a brain, heart, and intestinal tract. More recent reports, however, indicate that similar experiments involving larger animals have not yet progressed long enough to produce successful pregnancies.

Although there have been no confirmed reports of scientists creating viable human embryos using these techniques, it is widely acknowledged that the possibility is being actively discussed within the scientific community. Likewise, artificial womb technology is advancing rapidly, with leading universities and research institutions receiving substantial funding in recent years to develop experimental prototypes.

One example is the Eindhoven University of Technology (TU/e) in the Netherlands. In 2020, the university received a €3 million grant from the European Union to develop a perinatal life-support system combining an artificial womb and artificial placenta.

PhD researcher Juliette van Haren has emphasized that the term artificial womb can be misleading, as the goal is not to replace pregnancy altogether. Instead, the research seeks to provide critically premature infants with an environment that more closely replicates the conditions of the womb, improving their chances of healthy physical and neurological development.

What Does This Have to Do with International Family Law?

Advances in reproductive medicine have transformed fertility treatment and expanded the ways in which families can be formed. At the same time, these developments continue to challenge traditional legal concepts of parenthood—particularly in cross-border situations.

International travel is no longer motivated solely by work, study, or relocation. Increasingly, individuals and couples travel abroad specifically to access assisted reproductive technologies (ART) that may be unavailable, prohibited, or prohibitively expensive in their home countries.

There are many reasons why families pursue fertility treatment abroad. Certain procedures may not be legally permitted where they live. Others may be available but financially inaccessible, making treatment in another country a more realistic option.

Yet the internationalization of assisted reproduction creates significant legal uncertainty, as the law often struggles to keep pace with scientific innovation.

The Challenge of Legal Parentage Across Borders

One of the most complex issues concerns legal parentage—that is, how different countries determine who a child's legal parents are.

At present, there is no universal guarantee that a parent-child relationship established in one country will be recognized in another. Consequently, a child may legally have different parents depending on the jurisdiction involved and the circumstances of their conception or birth.

In many legal systems, the woman who gives birth is automatically recognized as the legal mother, while legal fatherhood is often attributed to her spouse. However, modern family structures increasingly fall outside these traditional assumptions.

Questions naturally arise:

What if my spouse and I are not married?
What if we are an LGBTQIA+ family?
What if we conceived using donor eggs or sperm?
What if our child was born through a surrogacy arrangement?
And in the future, what if a child is gestated in an artificial womb?

These questions become even more significant for families with international connections.

Even if a child's birth certificate identifies their legal parents, that parentage may not automatically be recognized in another country. The consequences can extend throughout a person's lifetime, affecting issues such as nationality and citizenship, child support, parental responsibility and custody, inheritance rights, and many other legal matters.

As reproductive technologies continue to evolve, the gap between scientific innovation and legal regulation is likely to widen. Until greater international harmonization is achieved, careful legal planning and specialized advice remain essential for families navigating cross-border reproductive arrangements.

Disclaimer: This article is provided for informational purposes only and does not constitute legal advice. If you require guidance regarding your specific circumstances, please consult a qualified legal professional.