Abstract
Maternal obesity adversely impacts the in utero metabolic environment, but its effect on fetal hematopoiesis remains incompletely understood. During late development, the fetal bone marrow (FBM) becomes the major site where macrophages and B lymphocytes are produced via differentiation of hematopoietic stem and progenitor cells (HSPCs). Here, we analyzed the transcriptional landscape of FBM HSPCs at single-cell resolution in fetal macaques exposed to a maternal high-fat Western-style diet (WSD) or a low-fat control diet. We demonstrate that maternal WSD induces a proinflammatory response in FBM HSPCs and fetal macrophages. In addition, maternal WSD consumption suppresses the expression of B cell development genes and decreases the frequency of FBM B cells. Finally, maternal WSD leads to poor engraftment of fetal HSPCs in nonlethally irradiated immunodeficient NOD/SCID/IL2rγ−/− mice. Collectively, these data demonstrate for the first time that maternal WSD impairs fetal HSPC differentiation and function in a translationally relevant nonhuman primate model.
| Original language | English |
|---|---|
| Pages (from-to) | 2595-2609 |
| Number of pages | 15 |
| Journal | Stem Cell Reports |
| Volume | 17 |
| Issue number | 12 |
| DOIs | |
| State | Published - Dec 13 2022 |
Bibliographical note
Publisher Copyright:© 2022 The Author(s)
Funding
We thank Dr. Lauren Drew Martin for help with blood collections, Kati Marshall for help in animal handling and transplantation, Dr. Jennifer Atwood for assistance with cell sorting, and Dr. Melanie Oakes for assistance with library preparation and sequencing of 10x samples. This study was supported by NIH grants P50 HD071836 to C.T.R. and J.D.H., P51 OD01192 for operation of the ONPRC , 1R01AI142841 and 1R01AI145910 to I.M., R24-DK090964 to J.E.F., F30-DK122672 to M.J.N., R01-DK108910 to S.R.W., R01-DK119394 to E.M.P., and the shared instrumentation grant 1S10OD025002-01.
| Funders | Funder number |
|---|---|
| National Institutes of Health (NIH) | P50 HD071836, P51 OD01192 |
| National Institute of Allergy and Infectious F32-AI286447 Cydney N. Johnson Diseases National Institute of Allergy and Infectious R01AI168214 Jason W. Rosch Diseases National Institute of Allergy and Infectious P30 Cydney N. Johnson Diseases National Institute of Allergy and Infectious R00-AI166116 Christopher D. Radka Diseases National Institute of Allergy and Infectious T32-AI106700 Cydney N. Johnson Diseases National Institute of Allergy and Infectious R01AI192221 Jason W. Rosch Diseases National Inst... | R01AI142841 |
| Oregon National Primate Research Center | 1R01AI142841, 1R01AI145910, 1S10OD025002-01, F30-DK122672, R01-DK119394, R24-DK090964, R01-DK108910 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
Keywords
- B lymphocytes
- bone marrow
- fetal development
- hematopoietic stem and progenitor cells
- high-fat diet
- macrophages
- maternal programming
- monocytes
- nonhuman primates
- obesity
ASJC Scopus subject areas
- Biochemistry
- Genetics
- Developmental Biology
- Cell Biology
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