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Ada Hang-Heng Wong: The Hidden Biology of Microchimerism in Pregnancy and Beyond
Oct 30, 2025, 11:44

Ada Hang-Heng Wong: The Hidden Biology of Microchimerism in Pregnancy and Beyond

Ada Hang-Heng Wong, Deputy Editor for Advanced Science Oncology Section at Wiley, shared a post on LinkedIn about a paper by Kristine J. Chua et al. published in Advanced Science:

Microchimerism

A chimera is defined as an organism containing cells of multiple genetic origins. The injection of engineered embryonic stem cells into blastocysts to create transgenic mice often results in chimeric mice with unpredictable outcomes. Breeding is commonly used to screen for germline modifications that are inherited by offspring. However, it is rare to examine the phenotypes of chimeras, let alone the biology of chimerism itself, especially when this form of chimerism is artificially induced.

Nevertheless, microchimerism arising during pregnancy deserves greater attention. In particular, dissecting the biology of fetal microchimerism may provide insight into fetal mortality. Studying maternal microchimerism could shed light on postpartum autoimmune diseases, whereas investigating intergenerational microchimerism may reveal additional benefits of lactation. Finally, the concept of transgenerational microchimerism challenges our understanding of genetic inheritance through meiosis and embryogenesis.

UC Santa Barbara’s anthropologist Amy Boddy discussed many questions raised by experts in the field and calls for interdisciplinary collaboration to develop methodologies for studying microchimerism biology in this insightful perspective published by Advanced Science.

Original Perspective.

Photo courtesy of Prof. Chuxia Deng and Dr. Kai Miao of Universidade de Macau / University of Macau”

Title: Identifying Key Questions and Challenges in Microchimerism Biology

Authors: Kristine J. Chua, Rachel C. Quilang, Katja Sallinger, Christina Athena Aktipis, Petra Arck, Diana W. Bianchi, Hyun-Dong Chang, Henderson J. Cleaves II, Michael Eikmans, Heidi E. S. Fjeldstad, David Haig, Whitney E. Harrington, William Horsnell, Daniel P. Jacobsen, Mads Kamper-Jørgensen, Sami B. Kanaan, Kiarash Khosrotehrani, Nathalie C. Lambert, Jane Lee Nelson, Maria B. Olsen, Tiffany D. Pan, Jelmer R. Prins, Frank A. Schildberg, Anne Cathrine Staff, Anders Ståhlberg, Ina A. Stelzer, Christopher Urbschat, Sing Sing Way, Melissa A. Wilson, Jody Ye, Thomas Kroneis, Amy M. Boddy

Read the full article.

Microchimerism

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