Splenomegaly induced by anemia impairs T cell movement in the spleen partially via EPO. (August 2019)

• Record Type: Journal Article
• Authors: Li, Yan; Yue, Honggang; Yang, Shouyan; Yuan, Dandi; Li, Luxia; Zhao, Jinghong; Zhao, Lintao
• Is Part Of: Molecular immunology. Volume 112(2019:Aug.)
• Page Start: 399
• Page End: 405
• Publication Date: 2019-08
• Subjects: EPO -- Spleen -- CCL21 -- CCL19 -- Anemia -- T cell; Immunochemistry -- Periodicals; Molecular biology -- Periodicals; Immunochemistry -- Periodicals; Allergy and Immunology -- Periodicals; Molecular Biology -- Periodicals; Immunochimie -- Périodiques; Biologie moléculaire -- Périodiques; Immunochemistry; Molecular biology; Periodicals; Electronic journals; 571.96
• DOI: 10.1016/j.molimm.2019.06.021
• Languages: English
• ISSNs: 0161-5890

Abstract

Highlights: Splenomegaly reduced the ability of T cells trafficking to the spleen. Splenomegaly reduced the expressions of CCL21 and CCL19 in the spleen. EPO decreased the chemokines expression in spleen. EPO decreased the ability of T cells homing to the spleen. Abstract: The spleen is an important secondary lymph organ. Splenomegaly induced by anemia could affect the function of spleen in immune responses. We observe that anemia induced in mice with reduced peripheral T cell trafficking to the spleen T cell zones as well as CCL21 and CCL19 expression. In accordance with previous research, we found that the production of EPO in the mice kidney was sharply increased post anemia. In addition, mice were injected with different doses of EPO. Our results show that with the increased dosage of EPO, the chemokine expression in the spleen is lowered with a decrease in peripheral T cell homing to the spleen T cell zones. At last, our results show that the anemia mice model administrated with anti-EPO antibody had a higher expression of spleen CCL19 and CCL21 and an increased count of periphery T cells trafficking to spleen T cell zones at day 3 post induction. These data indicate that anemia could disturb T cell movement in the spleen, which might further affect T cell immune response, with partial involvement of EPO.