Dataset Information

KH: Investigation of mouse amniotic fluid for stimulating ability of keratinocyte differentiation depending on the fetal stage

ABSTRACT: Investigation of mouse amniotic fluid for stimulating ability of keratinocyte differentiation depending on the fetal stage

ORGANISM(S): Mus Musculus (mouse)

SUBMITTER: Kiyotaka Hitomi

PROVIDER: PXD024377 | JPOST Repository | Thu Apr 13 00:00:00 BST 2023

REPOSITORIES: jPOST

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			Action	DRS
	20190319_07_MmFd11_01_70m1uL.raw	Raw
	20190319_09_MmFd11_02_70m1uL.raw	Raw
	20190319_11_MmFd11_03_70m1uL.raw	Raw
	20190319_13_MmFd13_01_70m1uL.raw	Raw
	20190319_15_MmFd13_02_70m1uL.raw	Raw

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Publications

Investigation of mouse amniotic fluid for stimulating ability of keratinocyte differentiation depending on the fetal stage.

Kuribayashi Miki M Kawaguchi Yusuke Y Teshima Hirofumi H Yamaguchi Hisateru H Tatsukawa Hideki H Hitomi Kiyotaka K

Archives of biochemistry and biophysics 20210812

During fetal development, the barrier function of the fetal skin is developed under specific conditions for epidermis formation. In keratinocyte differentiation, the well-orchestrated production and modification of various structural proteins are induced. We assessed the epidermal barrier function in different fetal stages by evaluating the enzymatic activity of cross-linking proteins, transglutaminases, and the permeation of fluorescence dye in the stained epidermal sections. During days 15.5-1 ...[more]

PMID: 34390735

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Project description:Intra-amniotic infection, the invasion of microbes into the amniotic cavity resulting in an inflammatory process, is a clinical condition that can lead to adverse pregnancy outcomes for the mother and fetus as well as severe long-term neonatal morbidities. Despite much research focused on the consequences of intra-amniotic infection, there is still little knowledge about the functional roles of innate immune cells that respond to invading microbes. In the current study, we performed RNA sequencing of sorted neutrophils and monocytes/macrophages from amniotic fluid from women with intra-amniotic infection to determine the transcriptomic differences between these innate immune cells. Further, we sought to identify specific transcriptomic pathways that were significantly altered by the maternal or fetal origin of amniotic fluid neutrophils and monocytes, the presence of a severe fetal inflammatory response, and pregnancy outcome (i.e. preterm or term delivery). We showed that significant transcriptomic differences exist between amniotic fluid neutrophils and monocytes/macrophages from women with intra-amniotic infection that are indicative of the distinct roles these cells play. We also found that amniotic fluid monocytes/macrophages of fetal origin display impaired ability to clear out microbes invading the amniotic cavity compared to those of maternal origin. Notably, we demonstrate that the transcriptomic changes in amniotic fluid monocytes/macrophages are heavily associated with the severity of the fetal inflammatory response, suggesting that the trafficking of fetal neutrophils throughout the umbilical cord is partially modulated by monocytes/macrophages in the amniotic cavity. Finally, we show that amniotic fluid neutrophils and monocytes/macrophages from preterm deliveries display enhanced transcriptomic activity compared to those from term deliveries, highlighting the protective role of these innate immune cells in this vulnerable period. Collectively, these findings demonstrate the underlying complexity of local innate immune responses in women with intra-amniotic infection, and provide new insights into the functions of amniotic fluid neutrophils and monocytes in the amniotic cavity.