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| Content Provider | Springer Nature : BioMed Central |
|---|---|
| Author | Fu, Xiaoying Guo, Xiaoyan Xu, Han Li, Yini Jin, Bihui Zhang, Xirong Shu, Chongyi Fan, Yuhang Yu, Yiqi Tian, Yuqing Tian, Jiao Shu, Jing |
| Abstract | Background Reduced endometrium thickness and receptivity are two important reasons for recurrent implantation failure (RIF). In order to elucidate differences between these two types of endometrial defects in terms of molecular signatures, cellular interactions, and structural changes, we systematically investigated the single-cell transcriptomic atlas across three distinct groups: RIF patients with thin endometrium (≤ 6 mm, TE-RIF), RIF patients with normal endometrium thickness (≥ 8 mm, NE-RIF), and fertile individuals (Control). Methods The late proliferative and mid-secretory phases of the endometrium were collected from three individuals in the TE-RIF group, two in the NE-RIF group, and three in the control group. The study employed a combination of advanced techniques. Single-cell RNA sequencing (scRNA-seq) was utilized to capture comprehensive transcriptomic profiles at the single-cell level, providing insights into gene expression patterns within specific cell types. Scanning and transmission electron microscopy were employed to visualize ultrastructural details of the endometrial tissue, while hematoxylin and eosin staining facilitated the examination of tissue morphology and cellular composition. Immunohistochemistry techniques were also applied to detect and localize specific protein markers relevant to endometrial receptivity and function. Results Through comparative analysis of differentially expressed genes among these groups and KEGG pathway analysis, the TE-RIF group exhibited notable dysregulations in the TNF and MAPK signaling pathways, which are pivotal in stromal cell growth and endometrial receptivity. Conversely, in the NE-RIF group, disturbances in energy metabolism emerged as a primary contributor to reduced endometrial receptivity. Additionally, using CellPhoneDB for intercellular communication analysis revealed aberrant interactions between epithelial and stromal cells, impacting endometrial receptivity specifically in the TE-RIF group. Conclusion Overall, our findings provide valuable insights into the heterogeneous molecular pathways and cellular interactions associated with RIF in different endometrial conditions. These insights may pave the way for targeted therapeutic interventions aimed at improving endometrial receptivity and enhancing reproductive outcomes in patients undergoing ART. Further research is warranted to validate these findings and translate them into clinical applications for personalized fertility treatments. Trial registration Not applicable. |
| Related Links | https://rbej.biomedcentral.com/counter/pdf/10.1186/s12958-024-01263-1.pdf |
| Ending Page | 15 |
| Page Count | 15 |
| Starting Page | 1 |
| File Format | HTM / HTML |
| ISSN | 14777827 |
| DOI | 10.1186/s12958-024-01263-1 |
| Journal | Reproductive Biology and Endocrinology |
| Issue Number | 1 |
| Volume Number | 22 |
| Language | English |
| Publisher | BioMed Central |
| Publisher Date | 2024-07-31 |
| Access Restriction | Open |
| Subject Keyword | Reproductive Medicine Endocrinology Single-cell sequencing Thin endometrium Recurrent implantation failure |
| Content Type | Text |
| Resource Type | Article |
| Subject | Endocrinology Obstetrics and Gynecology Developmental Biology Reproductive Medicine |
| Journal Impact Factor | 4.2/2023 |
| 5-Year Journal Impact Factor | 5.3/2023 |
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