title: Role of Wnt3a expressed by dendritic cells in the activation of canonical Wnt signaling and generation of memory T cells during primary immune responses.
abstract: The presence of memory T cells (TMs) hinders transplant survival. Dendritic cells (DCs) induce the generation of TMs during primary immune responses. However, the specific mechanisms are unclear. In this study, we constructed a Wnt3a-expressing adenovirus and used small interfering RNA (siRNA) targeting Wnt3a to investigate the influence of Wnt3a expression in DCs on the generation of TMs during primary immune responses. Our results demonstrated that the Wnt3a expression levels in DCs influenced the generation of TMs after 5days in co-culture with naïve T cells through activation of the Wnt canonical pathway. Interleukin-7 secretion levels in supernatants of DC/TNs co-cultures showed a similar pattern of Wnt3a expression levels in DCs. These findings provide a better understanding of TMs generation mechanisms that might be useful to improve transplant outcomes.
authors.affiliation: Department of Research and Education, Guizhou Province People's Hospital, Guiyang 550002, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Luo
authors.affiliation: Department of Thoracic Surgery, Guizhou Province People's Hospital, Guiyang 550002, China.
authors.forename: Zhengyu
authors.initials: Z
authors.lastname: Li
authors.affiliation: Department of Urology, Guizhou Province People's Hospital, Guiyang 550002, China.
authors.forename: Guangheng
authors.initials: G
authors.lastname: Luo
authors.affiliation: Department of Research and Education, Guizhou Province People's Hospital, Guiyang 550002, China.
authors.forename: Yingting
authors.initials: Y
authors.lastname: Zhao
authors.affiliation: Department of Cardiology, Guizhou Province People's Hospital, Guiyang 550002, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Yang
authors.affiliation: Department of Research and Education, Guizhou Province People's Hospital, Guiyang 550002, China. Electronic address: huichen7710@hotmail.com.
authors.forename: Hui
authors.initials: H
authors.lastname: Chen
mesh_terms: D000818:Animals; D002478:Cells, Cultured; D018920:Coculture Techniques; D003713:Dendritic Cells / Q000276:immunology*; D006084:Graft Rejection / Q000276:immunology* / Q000517:prevention & control; D007156:Immunologic Memory; D015851:Interleukin-7 / Q000378:metabolism; D008213:Lymphocyte Activation; D051379:Mice; D008807:Mice, Inbred BALB C; D008810:Mice, Inbred C57BL; D034741:RNA, Small Interfering / Q000235:genetics; D015398:Signal Transduction / Q000276:immunology; D013601:T-Lymphocytes / Q000276:immunology*; D060509:Wnt3A Protein / Q000235:genetics / Q000378:metabolism*
chemical_list: D015851:Interleukin-7; D034741:RNA, Small Interfering; D060509:Wnt3A Protein
keywords: Adenoviral expression vector; Canonical Wnt pathway; Dendritic cells; Memory T cells; Small interfering RNA; Wnt3a