Endometrial small extracellular vesicles regulate human trophectodermal cell invasion by reprogramming the phosphoproteome landscape
A series of cyclical events within the uterus are crucial for pregnancy establishment. These include endometrial regeneration following menses, under the influence of estrogen (proliferative phase), then endometrial differentiation driven by estrogen/progesterone (secretory phase), to provide a micr...
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Frontiers Media S.A.
2022-12-01
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| Series: | Frontiers in Cell and Developmental Biology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fcell.2022.1078096/full |
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| author | Monique Fatmous Monique Fatmous Alin Rai Alin Rai Alin Rai Alin Rai Qi Hui Poh Qi Hui Poh Qi Hui Poh Lois A. Salamonsen Lois A. Salamonsen David W. Greening David W. Greening David W. Greening David W. Greening David W. Greening |
| author_facet | Monique Fatmous Monique Fatmous Alin Rai Alin Rai Alin Rai Alin Rai Qi Hui Poh Qi Hui Poh Qi Hui Poh Lois A. Salamonsen Lois A. Salamonsen David W. Greening David W. Greening David W. Greening David W. Greening David W. Greening |
| author_sort | Monique Fatmous |
| collection | DOAJ |
| description | A series of cyclical events within the uterus are crucial for pregnancy establishment. These include endometrial regeneration following menses, under the influence of estrogen (proliferative phase), then endometrial differentiation driven by estrogen/progesterone (secretory phase), to provide a microenvironment enabling attachment of embryo (as a hatched blastocyst) to the endometrial epithelium. This is followed by invasion of trophectodermal cells (the outer layer of the blastocyst) into the endometrium tissue to facilitate intrauterine development. Small extracellular vesicles (sEVs) released by endometrial epithelial cells during the secretory phase have been shown to facilitate trophoblast invasion; however, the molecular mechanisms that underline this process remain poorly understood. Here, we show that density gradient purified sEVs (1.06–1.11 g/ml, Alix+ and TSG101+, ∼180 nm) from human endometrial epithelial cells (hormonally primed with estrogen and progesterone vs. estrogen alone) are readily internalized by a human trophectodermal stem cell line and promote their invasion into Matrigel matrix. Mass spectrometry-based proteome analysis revealed that sEVs reprogrammed trophectoderm cell proteome and their cell surface proteome (surfaceome) to support this invasive phenotype through upregulation of pro-invasive regulators associated with focal adhesions (NRP1, PTPRK, ROCK2, TEK), embryo implantation (FBLN1, NIBAN2, BSG), and kinase receptors (EPHB4/B2, ERBB2, STRAP). Kinase substrate prediction highlighted a central role of MAPK3 as an upstream kinase regulating target cell proteome reprogramming. Phosphoproteome analysis pinpointed upregulation of MAPK3 T204/T202 phosphosites in hTSCs following sEV delivery, and that their pharmacological inhibition significantly abrogated invasion. This study provides novel molecular insights into endometrial sEVs orchestrating trophoblast invasion, highlighting the microenvironmental regulation of hTSCs during embryo implantation. |
| first_indexed | 2024-04-11T05:40:45Z |
| format | Article |
| id | doaj.art-f1ce49e0d9874c15b7664f51cb05e76f |
| institution | Directory Open Access Journal |
| issn | 2296-634X |
| language | English |
| last_indexed | 2024-04-11T05:40:45Z |
| publishDate | 2022-12-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Cell and Developmental Biology |
| spelling | doaj.art-f1ce49e0d9874c15b7664f51cb05e76f2022-12-22T05:14:18ZengFrontiers Media S.A.Frontiers in Cell and Developmental Biology2296-634X2022-12-011010.3389/fcell.2022.10780961078096Endometrial small extracellular vesicles regulate human trophectodermal cell invasion by reprogramming the phosphoproteome landscapeMonique Fatmous0Monique Fatmous1Alin Rai2Alin Rai3Alin Rai4Alin Rai5Qi Hui Poh6Qi Hui Poh7Qi Hui Poh8Lois A. Salamonsen9Lois A. Salamonsen10David W. Greening11David W. Greening12David W. Greening13David W. Greening14David W. Greening15Baker Heart and Diabetes Institute, Melbourne, VIC, AustraliaDepartment of Microbiology, Anatomy, Physiology and Pharmacology, La Trobe University (LTU), Melbourne, VIC, AustraliaBaker Heart and Diabetes Institute, Melbourne, VIC, AustraliaCentral Clinical School, Monash University, Melbourne, VIC, AustraliaBaker Department of Cardiometabolic Health, University of Melbourne, Melbourne, VIC, AustraliaBaker Department of Cardiovascular Research, Translation and Implementation, LTU, Melbourne, VIC, AustraliaBaker Heart and Diabetes Institute, Melbourne, VIC, AustraliaBaker Department of Cardiovascular Research, Translation and Implementation, LTU, Melbourne, VIC, AustraliaDepartment of Biochemistry and Chemistry, LTU, Melbourne, VIC, AustraliaCentre for Reproductive Health, Hudson Institute of Medical Research, Clayton, VIC, AustraliaDepartment of Molecular and Translational Medicine, Monash University, Clayton, VIC, AustraliaBaker Heart and Diabetes Institute, Melbourne, VIC, AustraliaCentral Clinical School, Monash University, Melbourne, VIC, AustraliaBaker Department of Cardiometabolic Health, University of Melbourne, Melbourne, VIC, AustraliaBaker Department of Cardiovascular Research, Translation and Implementation, LTU, Melbourne, VIC, AustraliaDepartment of Biochemistry and Chemistry, LTU, Melbourne, VIC, AustraliaA series of cyclical events within the uterus are crucial for pregnancy establishment. These include endometrial regeneration following menses, under the influence of estrogen (proliferative phase), then endometrial differentiation driven by estrogen/progesterone (secretory phase), to provide a microenvironment enabling attachment of embryo (as a hatched blastocyst) to the endometrial epithelium. This is followed by invasion of trophectodermal cells (the outer layer of the blastocyst) into the endometrium tissue to facilitate intrauterine development. Small extracellular vesicles (sEVs) released by endometrial epithelial cells during the secretory phase have been shown to facilitate trophoblast invasion; however, the molecular mechanisms that underline this process remain poorly understood. Here, we show that density gradient purified sEVs (1.06–1.11 g/ml, Alix+ and TSG101+, ∼180 nm) from human endometrial epithelial cells (hormonally primed with estrogen and progesterone vs. estrogen alone) are readily internalized by a human trophectodermal stem cell line and promote their invasion into Matrigel matrix. Mass spectrometry-based proteome analysis revealed that sEVs reprogrammed trophectoderm cell proteome and their cell surface proteome (surfaceome) to support this invasive phenotype through upregulation of pro-invasive regulators associated with focal adhesions (NRP1, PTPRK, ROCK2, TEK), embryo implantation (FBLN1, NIBAN2, BSG), and kinase receptors (EPHB4/B2, ERBB2, STRAP). Kinase substrate prediction highlighted a central role of MAPK3 as an upstream kinase regulating target cell proteome reprogramming. Phosphoproteome analysis pinpointed upregulation of MAPK3 T204/T202 phosphosites in hTSCs following sEV delivery, and that their pharmacological inhibition significantly abrogated invasion. This study provides novel molecular insights into endometrial sEVs orchestrating trophoblast invasion, highlighting the microenvironmental regulation of hTSCs during embryo implantation.https://www.frontiersin.org/articles/10.3389/fcell.2022.1078096/fulltrophoblast invasionextracellular vesiclesproteomicsphosphoproteomicssurfaceometrophectoderm cells |
| spellingShingle | Monique Fatmous Monique Fatmous Alin Rai Alin Rai Alin Rai Alin Rai Qi Hui Poh Qi Hui Poh Qi Hui Poh Lois A. Salamonsen Lois A. Salamonsen David W. Greening David W. Greening David W. Greening David W. Greening David W. Greening Endometrial small extracellular vesicles regulate human trophectodermal cell invasion by reprogramming the phosphoproteome landscape Frontiers in Cell and Developmental Biology trophoblast invasion extracellular vesicles proteomics phosphoproteomics surfaceome trophectoderm cells |
| title | Endometrial small extracellular vesicles regulate human trophectodermal cell invasion by reprogramming the phosphoproteome landscape |
| title_full | Endometrial small extracellular vesicles regulate human trophectodermal cell invasion by reprogramming the phosphoproteome landscape |
| title_fullStr | Endometrial small extracellular vesicles regulate human trophectodermal cell invasion by reprogramming the phosphoproteome landscape |
| title_full_unstemmed | Endometrial small extracellular vesicles regulate human trophectodermal cell invasion by reprogramming the phosphoproteome landscape |
| title_short | Endometrial small extracellular vesicles regulate human trophectodermal cell invasion by reprogramming the phosphoproteome landscape |
| title_sort | endometrial small extracellular vesicles regulate human trophectodermal cell invasion by reprogramming the phosphoproteome landscape |
| topic | trophoblast invasion extracellular vesicles proteomics phosphoproteomics surfaceome trophectoderm cells |
| url | https://www.frontiersin.org/articles/10.3389/fcell.2022.1078096/full |
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