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Reference
Figure
ID
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J:386951
Guertin TM, et al., Onset of embryonic and placental defects coincide in 19 of 22 novel mid-gestation lethal murine knockout lines. Development. 2026 May 15;153(10):dev205276
Extended Data 9
MGI:8377012
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| Caption | (A) Summary of defects observed in E9.5 Ppox-/- placentas. (B) Histological images of adjacent sections from a representative E9.5 Ppox-/- placenta displaying a diminished Tpbp + SpT layer, abnormal chorioallantoic interface, and multiple LZ defects relative to controls (n = 3). Dashed boxes indicate the LZ region shown at higher magnification in C. IF on the KO placenta was performed on a section that was close, but not immediately adjacent to the sections used for ISH. An abnormal chorioallantoic interface is observed in KO placentas, characterized by a reduced amount of allantoic mesenchyme and limited interface expansion. The Tfeb+ and MCT1+ SynTI region fails to expand and remains a thin layer compared to controls. Gcm1 and MCT4 are minimal and rare shallow invasion of allantoic mesenchyme in some KOs suggests chorioallantoic branching and SynTII differentiation initiates but fails to progress further. Minimal Endomucin signal was observed in the allantoic mesenchyme, however, fetal blood cells were not detected in the allantoic mesenchyme. Maternal blood fails to integrate among labyrinth trophoblasts and instead accumulates between the JZ and LZ. Although the minimal MCT1 and MCT4 signals are found in close apposition, the extensive network of adjacent MCT1+ SynTI and MCT4+ SynTII cells observed in controls has not developed. (D) Images of the embryonic component of the conceptuses shown in B and C. (E) Examination of additional KO placentas demonstrates that a thicker Pl-1+ TGC layer accompanies the diminished Tpbp + SpT layer (n = 3). Scale bars: 500 m. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Copyright | This image is from Guertin TM, Development 2026 May 15;153(10):dev205276, and is displayed under the terms of the Creative Commons Attribution 4.0 International License. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Associated Assays |
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Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO) |
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last database update 09/15/2026 MGI 6.29 |
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