ArticleMolecular medicine reports2020
Effects of combined treatment with PD‑L1 Ig and CD40L mAb on immune tolerance in the CBA/J x DBA/2 mouse model.
Article in Molecular medicine reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 6 citations in OpenAlex.
- Immune checkpoint profiling in unexplained female infertility: a prospective study.BMC women's health · 2026Article
- Regulatory T cell adoptive transfer alters uterine immune populations, increasing a novel MHC-IIFrontiers in immunology · 2023Article
- Ferroptosis: a double-edged sword mediating immune tolerance of cancer.Cell death & disease · 2022Review
- Sinomenine Improves Embryo Survival by Regulating Th1/Th2 Balance in a Mouse Model of Recurrent Spontaneous Abortion.Medical science monitor : international medical journal of experimental and clinical research · 2021Article
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Authors and funding
8 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The embryo is a natural allograft and is the only exception to immune rejection, which reflects maternal immune tolerance towards the embryo. However, pregnancy loss is primarily caused by maternal immune rejection of the embryo. The aim of the present study was to explore the effects of combined treatment of programmed death‑ligand 1 (PD‑L1) immunoglobulin (Ig) and CD40‑ligand (CD40L) monoclonal antibody (mAb) on immune tolerance in an abortion‑prone mating model. Mice were divided into the normal, spontaneous abortion, PD‑L1 Ig, CD40L mAb and the PD‑L1 Ig + CD40L mAb groups. On day 14 of gestation, the embryo resorption abortion rates of all the groups was observed. The maternal hypo‑responsiveness to paternal antigens was determined using a mixed lymphocyte response and the splenic CD4+CD25+ T‑cell population, major histocompatibility complex (MHC)‑II+, CD80+ and CD86+ cell populations in pregnant female CBA/J mice were analyzed using flow cytometry. The expression levels of intracellular cytokines in the splenic tissues of pregnant CBA/J female mice were analyzed using western blotting. The PD‑L1 Ig + CD40L group displayed the lowest resorption rate compared with the other groups. A significant decrease in the proliferative response of maternal splenic immunocompetent cells against paternal antigens, and a significant increase in the proliferative response of maternal splenic CD4+CD25+ T cells was observed in the PD‑L1 Ig + CD40L group compared with the spontaneous abortion group. The number of MHC‑II+, CD80+ and CD86+ bone marrow‑derived dendritic cells (DCs) generated by female mice, and the levels of tumor necrosis factor‑α and interferon‑γ in the spleens of female mice were significantly decreased in the PD‑L1 Ig + CD40L mAb group compared with the spontaneous abortion group. By contrast, interleukin‑4 levels were significantly increased in the PD‑L1 Ig + CD40L mAb group compared with the spontaneous abortion group. The results suggested that the administration of PD‑L1 Ig + CD40L mAb on day 4 of gestation, the period of peri‑implantation, may induce paternal antigen‑specific immunotolerance, leading to the embryo resorption rate of the abortion‑prone model being similar to that of the normal pregnancy model. The results indicate that the combined treatment of PD‑L1 Ig and anti‑CD40L mAbs may serve as a potential therapeutic for pregnancy loss.
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