CD40, CD80, and CD86 Costimulatory Molecules are Differentially Expressed on Murine Splenic Antigen-presenting Cells During the Pre-implantation Period of Pregnancy, and they Modulate Regulatory T-cell Abundance, Peripheral Cytokine Response, and Pregnancy Outcome
Version of Record online: 27 FEB 2013
© 2013 John Wiley & Sons A/S
American Journal of Reproductive Immunology
Volume 70, Issue 2, pages 116–126, August 2013
How to Cite
CD40, CD80, and CD86 costimulatory molecules are differentially expressed on murine splenic antigen-presenting cells during the pre-implantation period of pregnancy, and they modulate regulatory T-cell abundance, peripheral cytokine response, and pregnancy outcome. Am J Reprod Immunol 2013; 70: 116–126, , .
- Issue online: 10 JUL 2013
- Version of Record online: 27 FEB 2013
- Manuscript Accepted: 30 JAN 2013
- Manuscript Received: 23 AUG 2012
- antigen-presenting cells;
- costimulatory molecules;
The object of the study was to investigate the costimulatory phenotype of spleen antigen-presenting cells (APCs) in mice after mating and the influence of costimulatory signal blocking on pregnancy outcome, cytokine production, and Treg cell concentration.
Method of study
The levels of CD40, CD80, and CD86 on spleen APCs at day 0.5 and 3.5 after mating (C57BL/6Jx DBA/2J and C57BL/6JxBalb/c) were assessed by flow cytometry and RT-PCR. Blocking antibodies against costimulatory molecules were given i.p. at day 3.5 after mating. Pregnancy outcomes, blood cytokine (ELISA), and spleen Treg (flow cytometry) concentrations were examined at day 10.5 after mating.
Differential expression of costimulatory molecules on spleen APCs of mated v. pseudopregnant mice was observed mainly at day 3.5 after conception. Administration of anti-CD86 antibody lowered pregnancy outcome. Cytokine expression was modulated after administration of anti-CD86, anti-CD80 and anti-CD40 antibodies, whereas only anti-CD40 antibody changed the concentration of Treg lymphocytes and the level of Foxp3 protein expression.
Costimulatory phenotype of female spleen APCs is distinctly modulated after mating. Alteration of costimulatory signal derived from APCs during pre-implantation period of pregnancy may have an adverse effect on pregnancy outcome and the tolerogenic immune response.