scholarly journals MiR-184 Combined with STC2 Promotes Endometrial Epithelial Cell Apoptosis in Dairy Goats via RAS/RAF/MEK/ERK Pathway

Genes ◽  
2020 ◽  
Vol 11 (9) ◽  
pp. 1052
Author(s):  
Jiuzeng Cui ◽  
Xiaorui Liu ◽  
Lichun Yang ◽  
Sicheng Che ◽  
Hongran Guo ◽  
...  
Keyword(s):  
Epithelial Cell ◽  
Embryo Implantation ◽  
Animal Husbandry ◽  
Dairy Goat ◽  
Marker Genes ◽  
Erk Pathway ◽  
Dairy Goats ◽  
Endometrial Epithelial Cell ◽  
Forkhead Box M1 ◽  
Epithelial Cell Apoptosis

The endometrium undergoes a series of complex changes to form a receptive endometrium (RE) that allows the embryo to be implanted. The inability to establish endometrial receptivity of livestock causes embryo implantation failure and considerable losses to animal husbandry. MicroRNAs (miRNAs) are a class of noncoding RNAs. Studies have found that miRNAs can regulate many critical physiological processes, including the establishment of RE during embryo implantation. miR-184 is highly expressed in the endometrial receptive period of dairy goats. This study aimed to explore the effect of miR-184 on endometrial epithelial cell (EEC) apoptosis and RE establishment. Stanniocalcin2 (STC2) is a direct target of miR-184, and miR-184 decreases the expression of STC2 in dairy goat EECs. miR-184 can activate EECs apoptosis through the RAS/RAF/MEK/ERK pathway. Additionally, miR-184 increases the expression levels of RE marker genes, such as forkhead box M1 (FOXM1) and vascular endothelial growth factor (VEGF). These findings indicate that miR-184 promotes the apoptosis of endometrial epithelial cells in dairy goats by downregulating STC2 via the RAS/RAF/MEK/ERK pathway, and that it may also regulate the establishment of RE in dairy goats.

Testinwas regulated by circRNA3175-miR182 and inhibited endometrial epithelial cell apoptosis in pre-receptive endometrium of dairy goats

2018 ◽  
Vol 233 (10) ◽  
pp. 6965-6974 ◽  
Author(s):  
Lei Zhang ◽  
Xiaorui Liu ◽  
Xingna Ma ◽  
Yuexia Liu ◽  
Sicheng Che ◽  
...  
Keyword(s):  
Epithelial Cell ◽  
Cell Apoptosis ◽  
Dairy Goats ◽  
Endometrial Epithelial Cell ◽  
Epithelial Cell Apoptosis

scholarly journals The study of endometrium at gestational days 5 and 15 in dairy goats (Capra hircus)

2017 ◽  
Vol 62 (No. 9) ◽  
pp. 358-367 ◽  
Author(s):  
L. Zhang ◽  
X.-R. Liu ◽  
P. Han ◽  
Z.-Q. Zhou ◽  
B.-Y. Cao ◽  
...  
Keyword(s):  
Cell Proliferation ◽  
Estrogen Receptors ◽  
Embryo Implantation ◽  
Capra Hircus ◽  
Dairy Goat ◽  
Marker Genes ◽  
Dairy Goats ◽  
Expression Levels ◽  
Proliferation And Apoptosis ◽  
Endometrium Receptivity

Endometrium receptivity, an absolutely necessary part of successful embryo implantation, and several morphological and biochemical endometrial receptivity biomarkers have already been studied and proposed in some animals. However, to our knowledge, no such a study has as yet been undertaken in dairy goat. In the present study, the serum and uterus of dairy goat were studied at gestational days 5 and 15, the estrogen (E2) and progesterone (P4) concentrations in serum were determined by electrochemiluminescence immunoassay, the surface topography of endometrium was observed by scanning electron microscopy. Furthermore, the estrogen receptors (ER), prolactin (PRL), some marker genes of receptive endometrium, and cell proliferation and apoptosis in the uterus were also detected. Well-formed pinopodes were found on the surface of endometrium at day 15 with higher E2 and P4 concentrations in the serum and higher estrogen receptors ERα and ERβ expression levels and a lower PRL level in the endometrium. Moreover, some expression levels of marker genes of receptive endometrium (OPN, VEGF, LIF, PRLR) were increased at day 15 compared to day 5, but no significant differences were observed in the cell proliferation and apoptosis in the uterus. The results showed that the endometrium reached the receptive state at gestational day 15 in dairy goats.

scholarly journals Improvement Activity of 1-Deoxynojirimycin in the Growth of Dairy Goat Primary Mammary Epithelial Cell through Upregulating LEF-1 Expression

2018 ◽  
Vol 2018 ◽  
pp. 1-7
Author(s):  
Shengyue Ji ◽  
Ming Liu ◽  
Yuping Zhang ◽  
Hongfu Zhang
Keyword(s):  
Mammary Gland ◽  
Cell Growth ◽  
Epithelial Cell ◽  
Growth And Development ◽  
Mrna Level ◽  
Dairy Goat ◽  
Breast Epithelial Cell ◽  
Mrna Levels ◽  
Dairy Goats ◽  
Breast Epithelial

LEF-1/wnt10b is one of the most important signaling pathways regulating mammary gland growth and development and is also a potential target for molecular breeding. In this work, 1-deoxynojirimycin (DNJ), a natural alkaloid extracted from plant mulberry or microorganism, was found to have a positive activity in primary breast epithelial cell growth of dairy goats. The findings showed that, compared to the control, 6 μM DNJ in the DMEM/F12 medium in vitro greatly improved the density of dairy goat breast epithelial cell and significantly increased the LEF-1 mRNA level (P<0.01) and thus enhanced cell growth. In addition, DNJ displayed a similar function in alleviating the growth suppression of epithelial cell and the decrease of LEF-1 mRNA level resulting from lentiviral-mediated LEF-1 knockdown. Simultaneously, no significant change of the mRNA levels of IGF-1 and Fgf10, the other two key regulators in mammary gland growth and development, could be detected. Furthermore, the mammary duct of DNJ-fed mouse illustrated a better development accompanied with a higher LET-1 mRNA level than that of the control. In conclusion, DNJ could improve breast epithelial cell growth through upregulating LEF-1 expression, which supplied a new means in studying mammary gland growth and development.

scholarly journals Tripeptidyl peptidase I promotes human endometrial epithelial cell adhesive capacity implying a role in receptivity

2020 ◽  
Vol 18 (1) ◽  
Author(s):  
Leilani L. Santos ◽  
Cheuk Kwan Ling ◽  
Evdokia Dimitriadis
Keyword(s):  
Menstrual Cycle ◽  
Epithelial Cell ◽  
Stromal Cells ◽  
Embryo Implantation ◽  
Unexplained Infertility ◽  
Implantation Failure ◽  
Secretory Phase ◽  
Endometrial Epithelial Cell ◽  
Tripeptidyl Peptidase ◽  
Adhesive Capacity

AbstractThe endometrium undergoes cyclic remodelling throughout the menstrual cycle in preparation for embryo implantation which occurs in a short window during the mid-secretory phase. It is during this short ‘receptive window’ that the endometrial luminal epithelium acquires adhesive capacity permitting blastocysts firm adhesion to the endometrium to establish pregnancy. Dysregulation in any of these steps can compromise embryo implantation resulting in implantation failure and infertility. Many factors contribute to these processes including TGF-β, LIF, IL-11 and proteases. Tripeptidyl peptidase 1 (TPP1) is a is a lysosomal serine-type protease however the contribution of the TPP1 to receptivity is unknown. We aimed to investigate the role of TPP1 in receptivity in humans.In the current study, TPP1 was expressed in both epithelial and stromal compartments of the endometrium across the menstrual cycle. Expression was confined to the cytoplasm of luminal and glandular epithelial cells and stromal cells. Staining of mid-secretory endometrial tissues of women with normal fertility and primary unexplained infertility showed reduced immunostaining intensity of TPP1 in luminal epithelial cells of infertile tissues compared to fertile tissues. By contrast, TPP1 levels in glandular epithelial and stromal cells were comparable in both groups in the mid-secretory phase. Inhibition of TPP1 using siRNA compromised HTR8/SVneo (trophoblast cell line) spheroid adhesion on siRNA-transfected Ishikawa cells (endometrial epithelial cell line) in vitro. This impairment was associated with decreased sirtuin 1 (SIRT1), BCL2 and p53 mRNA and unaltered, CD44, CDH1, CDH2, ITGB3, VEGF A, OSTEOPONTIN, MDM2, CASP4, MCL1, MMP2, ARF6, SGK1, HOXA-10, LIF, and LIF receptor gene expression between treatment groups. siRNA knockdown of TPP1 in primary human endometrial stromal cells did not affect decidualization nor the expression of decidualization markers prolactin (PRL) and insulin-like growth factor-binding protein 1 (IGFBP1). Taken together, our data strongly suggests a role for TPP1 in endometrial receptivity via its effects on epithelial cell adhesion and suggests reduced levels associated with unexplained infertility may contribute to implantation failure.

The mRNA and lncRNA landscape of the non-pregnant endometrium during the oestrus cycle in dairy goat

2019 ◽  
Vol 59 (10) ◽  
pp. 1803 ◽  
Author(s):  
Xiaorui Liu ◽  
Lei Zhang ◽  
Jiuzeng Cui ◽  
Sicheng Che ◽  
Yuexia Liu ◽  
...  
Keyword(s):  
Target Genes ◽  
Embryo Implantation ◽  
Differentially Expressed ◽  
Dairy Goat ◽  
Dairy Goats ◽  
Global Trends ◽  
Oestrus Cycle ◽  
Complex Process ◽  
Non Coding Rnas ◽  
Cyclic Changes

Cyclic changes in the endometrium are essential for embryo implantation in mammals; many studies report that such changes constitute a complex process involving numerous molecular mediators. In the present study, goat endometria at oestrus Day 5 and oestrus Day 15 were selected to systematically analyse the transcriptome using strand-specific Ribo-Zero RNA sequencing. Over 120 million high-quality paired-end reads were generated and 440400 transcripts were identified in the endometrial tissue of dairy goats. In total, 489 differentially expressed mRNAs and 854 differentially expressed long non-coding RNAs were identified when comparing the endometrium at goat endometria at oestrus Day 5 and oestrus Day 15. Neurotensin was found to play a potentially important role in the non-pregnant goat endometrium during the oestrus cycle. Furthermore, gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes analyses of the cis-target genes of the differentially expressed long non-coding RNAs showed that GO:0005198 (structural molecule activity) and ko04510 (focal adhesion) might be involved in cyclic endometrial changes. Taken together, the resulting transcriptomic profiles elucidate global trends in mRNA and lncRNA expression in non-pregnant endometria during the oestrus cycle in dairy goats.

miR‐34a/c induce caprine endometrial epithelial cell apoptosis by regulating circ‐8073/ CEP55 via the RAS/RAF/MEK/ERK and PI3K/AKT/mTOR pathways

2020 ◽  
Vol 235 (12) ◽  
pp. 10051-10067 ◽  
Author(s):  
Xiaorui Liu ◽  
Lei Zhang ◽  
Lichun Yang ◽  
Jiuzeng Cui ◽  
Sicheng Che ◽  
...  
Keyword(s):  
Epithelial Cell ◽  
Cell Apoptosis ◽  
Endometrial Epithelial Cell ◽  
Epithelial Cell Apoptosis
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