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Embryo-derived chemokine CXCL12 enhances the pregnancy outcome via improved endometrial receptivity

ABSTRACT: Embryo-derived chemokine CXCL12 enhances the pregnancy outcome via improved endometrial receptivity

PROVIDER: PRJNA644913 | ENA |

REPOSITORIES: ENA

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Embryo-derived chemokine CXCL12 enhances the pregnancy outcome via improved endometrial receptivity

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Study on VEGF regulation mechanism of acupuncture improving endometrial receptivity in IVF-ET

Project description:We find that the Endometrial Blood Vessel Generation is an important part ofthe establishment of Endometrial Receptivity. We have demonstrated inprevious experiments: Acupuncture in IVF-ET treatment can effectively improve Endometrial Receptivity and improve the pregnancy rate, therefore, we proposea VEGF signaling pathway in Acupuncture can improve Endometrial receptivity, thus improving the success rate of IVF-ET Hypothesis. Around the hypothesisintends to adopt the rat model of IVF-ET, through methods of acupuncture, acupuncture combined with blocker, research the related indexes effect performance that acupuncture on the VEGF signaling pathway in endometrial. Using experimental techniques such as Morphological observation, ELIAS, Immunohistochemistry, Real-time quantitative PCR, Methylation-sensitive high-resolution melting curve method(MS-HRM), to complete the research ofobserving the Effect of acupuncture interference IVF-ET, Blocking the impaction VEGF to the effect, the relationship VEGF or gene methylation inits receptors with effect. From the molecular level clarify the adverse effects and mechanism action that acupuncture will improve IVF-ET superovulation of endometrial receptivity, through adjust VEGF signaling pathway, to provide a scientific basis for acupuncture in IVF-ET treatment

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T cell-mediated development of stromal fibroblasts with an immune-enhancing chemokine profile [bulk RNA-seq]

Project description:Stromal fibroblasts reside in inflammatory tissues that are characterized by either immune suppression or activation. Whether and how fibroblasts adapt to these contrasting microenvironments remains unknown. Cancer-associated fibroblasts (CAFs) mediate immune quiescence by producing the chemokine CXCL12, which coats cancer cells to suppress T cell infiltration. We examined whether CAFs can also adopt an immune-promoting chemokine profile. Single-cell RNA-sequencing of CAFs from mouse pancreatic adenocarcinomas identified a sub-population of CAFs with decreased expression of CXCL12 and increased expression of the T cell-attracting chemokine, CXCL9 in association with T cell infiltration. TNFa and IFNg containing conditioned media from activated CD8+ T cells converted stromal fibroblasts from a CXCL12+/CXCL9- immune suppressive phenotype into a CXCL12-/CXCL9+ immune-activating phenotype. Recombinant IFNg and TNFa acted synergistically to induce CXCL9 expression, whereas TNFa alone suppressed CXCL12 expression. This coordinated chemokine switch leads to increased T cell infiltration in an in vitro chemotaxis assay. Our study demonstrates that CAFs have a phenotypic plasticity that allows their adaptation to contrasting immune tissue microenvironments.

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