Maternal transient receptor potential vanilloid 6 (Trpv6) is involved in offspring bone development
Embryonic growth and bone development depend on placental Ca2+ transport across the feto-maternal barrier to supply minerals to the fetus. The individual factors and cellular mechanisms that regulate placental Ca2+ transfer, however, are only beginning to emerge. We find that the Ca2+-selective tran...
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| Main Authors: | , , , , , , , , , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
20 February 2019
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| In: |
Journal of bone and mineral research
Year: 2019, Volume: 34, Issue: 4, Pages: 699-710 |
| ISSN: | 1523-4681 |
| DOI: | 10.1002/jbmr.3646 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1002/jbmr.3646 Verlag, lizenzpflichtig, Volltext: https://asbmr.onlinelibrary.wiley.com/doi/abs/10.1002/jbmr.3646 
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| Author Notes: | Claudia Fecher‐Trost, Femke Lux, Kai-Markus Busch, Ahsan Raza, Manuel Winter, Franziska Hielscher, Thabet Belkacemi, Bram van der Eerden, Ulrich Boehm, Marc Freichel, and Petra Weissgerber |
| Summary: | Embryonic growth and bone development depend on placental Ca2+ transport across the feto-maternal barrier to supply minerals to the fetus. The individual factors and cellular mechanisms that regulate placental Ca2+ transfer, however, are only beginning to emerge. We find that the Ca2+-selective transient receptor potential vanilloid 6 (TRPV6) channel is expressed in trophoblasts of the fetal labyrinth, in the yolk sac, and in the maternal part of the placenta. Lack of functional TRPV6 channels in the mother leads to a reduced Ca2+ content in both placenta and embryo. Ca2+ uptake in trophoblasts is impaired in the absence of Trpv6. Trpv6-deficient embryos are smaller, have a lower body weight, and shorter and less calcified femurs. The altered cortical bone microarchitecture persists in adulthood. We show that TRPV6's Ca2+-conducting property causes this embryonic and bone phenotype. Our results show that TRPV6 is necessary for the Ca2+ uptake in trophoblasts and that TRPV6 deficiency in the placenta leads to reduced embryo growth, minor bone calcification, and impaired bone development. © 2019 American Society for Bone and Mineral Research. |
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| Item Description: | Gesehen am 16.04.2020 |
| Physical Description: | Online Resource |
| ISSN: | 1523-4681 |
| DOI: | 10.1002/jbmr.3646 |