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Paternal Expressed Gene 10 (PEG10) is decreased in early-onset preeclampsia
CONCLUSIONS: Placental PEG10 is reduced in patients with early-onset preeclampsia. In vitro studies suggest that hypoxia and inflammation may contribute to PEG10 downregulation. Reduced PEG10 alters canonical TGF-[Formula: see text] signalling, and thus may be involved in trophoblast dysfunction associated with this pathway.PMID:37464405 | PMC:PMC10355026 | DOI:10.1186/s12958-023-01116-3
Source: Reproductive Biology - July 18, 2023 Category: Reproduction Medicine Authors: Lydia Baird Ping Cannon Manju Kandel Tuong-Vi Nguyen Anna Nguyen Georgia Wong C íara Murphy Fiona C Brownfoot Elif Kadife Natalie J Hannan Stephen Tong Lucy A Bartho Tu'uhevaha J Kaitu'u-Lino Source Type: research

circPLOD2 knockdown suppresses endometriosis progression via the miR-216a-5p/ZEB1 axis
In conclusion, circPLOD2 promotes the proliferation, migration, and invasion of EC-ESCs and inhibits their apoptosis by targeting miR-216a-5p. These findings indicate potential therapeutic targets for endometriosis.PMID:37023661 | DOI:10.1016/j.repbio.2023.100758
Source: Reproductive Biology - April 6, 2023 Category: Reproduction Medicine Authors: Ganping Lai Dan Bu Maolin Chen Hongfang Liu Lei Dong Source Type: research

Long noncoding RNAs exchange during zygotic genome activation in goat.
Abstract In mammals, their proper development during the early cleavage stages strongly relies on the gene products newly transcribed by zygotic genome activation (ZGA). Long noncoding RNAs (lncRNAs) have been characterized as key regulators of the ZGA process in mice and human. However, the ZGA stage has not yet been identified and epigenetic regulations of the ZGA process remain largely unknown in goats. Here, we show that ZGA occurred at the 8-cell stage in goats. During ZGA, tri-methylation of H3K9 was dynamically changed but maintained strong staining in development arrested embryos. Using single-cell RNA seq...
Source: Biology of Reproduction - May 15, 2018 Category: Reproduction Medicine Authors: Deng M, Wan Y, Liu Z, Ren C, Zhang G, Pang J, Zhang Y, Wang F Tags: Biol Reprod Source Type: research

Integrin {alpha}4-positive human trophoblast progenitors: functional characterization and transcriptional regulation
This study supported our hypothesis that TBPCs from the chorionic mesenchyme can contribute to the subpopulation of CTBs that reside in the smooth chorion. In the absence of in vivo data, which is difficult to obtain in humans, the results have the limitations common to all in vitro studies. WIDER IMPLICATIONS OF THE FINDINGS The accepted view is that progenitors reside among the villous CTB subpopulation. Here, we show that TBPCs also reside in the mesenchymal layer of the smooth chorion throughout gestation. We theorize that they can contribute to the CTB layer in this region. This phenomenon may be particularly importa...
Source: Human Reproduction - May 17, 2016 Category: Reproduction Medicine Authors: Genbacev, O., Larocque, N., Ona, K., Prakobphol, A., Garrido-Gomez, T., Kapidzic, M., Barcena, A., Gormley, M., Fisher, S. J. Tags: Reproductive biology Source Type: research

Role of Sirt3 in mitochondrial biogenesis and developmental competence of human in vitro matured oocytes
STUDY QUESTION Does Sirt3 dysfunction result in poor developmental outcomes for human oocytes after in vitro maturation (IVM)? SUMMARY ANSWER Inefficient Sirt3 expression induced decreased mitochondrial DNA copy number and biogenesis, and therefore impaired the developmental competence of human IVM oocytes. WHAT IS KNOWN ALREADY Cytoplasmic immaturity in IVM oocytes may lead to reduced developmental competence. Mitochondrial dysfunction results in the accumulation of free radicals and leads to DNA mutations, protein damage, telomere shortening and apoptosis. SIRT3 (in the Sirtuin protein family) has emerged as a mitochon...
Source: Human Reproduction - February 16, 2016 Category: Reproduction Medicine Authors: Zhao, H.-C., Ding, T., Ren, Y., Li, T.-J., Li, R., Fan, Y., Yan, J., Zhao, Y., Li, M., Yu, Y., Qiao, J. Tags: Reproductive biology Source Type: research

Molecular pathways reflecting poor intrauterine growth are found in Wharton's jelly-derived mesenchymal stem cells
STUDY QUESTION Are molecular pathways reflecting the biology of small for gestational age (SGA) neonates preserved in umbilical cord-derived mesenchymal stem cells (MSCs)? SUMMARY ANSWER MSCs from SGA newborns were found to express an altered EGR-1-dependent gene network involved in the regulation of cell proliferation and oxidative stress. WHAT IS KNOWN ALREADY Individuals with suboptimal intrauterine development are at greater risk of metabolic diseases such as type II diabetes, obesity and cardiovascular disease. STUDY DESIGN, SIZE, DURATION Umbilical cords (n = 283) from the GUSTO (growing up in Singapore towards he...
Source: Human Reproduction - September 15, 2014 Category: Reproduction Medicine Authors: Sukarieh, R., Joseph, R., Leow, S. C., Li, Y., Loffler, M., Aris, I. M., Tan, J. H., Teh, A. L., Chen, L., Holbrook, J. D., Ng, K. L., Lee, Y. S., Chong, Y. S., Summers, S. A., Gluckman, P. D., Stunkel, W. Tags: Reproductive biology Source Type: research

Identification and characterization of HTR-8/SVneo SP cells
Goals: We investigated the side population cells in HTR-8/SVneo to identify the trophoblast stem cell marker, and characterize trophoblast stem cells. Method: We performed microarray expression analysis to search for up-regulated genes in trophoblast stem cell using a set of HTR-8/SVneo side population and non-side population cells. The expression of several candidate trophoblast stem cell markers were investigated by real time PCR, and performed knockdown of up-regulated genes expression using siRNA to analyze the association of up-regulated genes expression with trophoblast phenotype. Finally three dimensional cell cult...
Source: Placenta - September 1, 2014 Category: Reproduction Medicine Authors: Tetsunori Inagaki, Kiyoko Kato, Soshi Kusunoki, Koichi Tabu, Hitomi Okabe, Izumi Yamada, Tetsuya Taga, Akemi Matsumoto, Toshiaki Takezawa, Shintaro Makino, Satoru Takeda Tags: Abstracts Source Type: research

Functional Characterization of SOX2 in Bovine Preimplantation Embryos.
This study aimed to identify genes upregulated in the inner cell mass (ICM) of bovine blastocysts, and we selected SOX2 for further characterization. Spatial and temporal localization of the SOX2 protein revealed that its expression starts at the 16-cell stage and then becomes restricted to the ICMs of blastocysts. To study the role of SOX2 during the early development of bovine embryos, we designed siRNA to target SOX2. We began by injecting this siRNA into zygotes; the rate at which blastocysts developed declined, compared to non-injected or scramble-injected controls. When only one blastomere of a two-cell embryo was in...
Source: Reproductive Biology - January 3, 2014 Category: Reproduction Medicine Authors: Goissis MD, Cibelli JB Tags: Biol Reprod Source Type: research