Kensuke Shibata

Learn More
We reported previously that IL-15 plays a critical role in protecting effector CD8(+) T cells from apoptosis during the contraction phase following acute infection with Listeria monocytogenes by inducing antiapoptotic molecules. In the present study, we examined the effects of in vivo administration of rIL-15 on contraction of CD8(+) T cells after chronic(More)
The content and nature of the preprotachykinin (PPT; i.e., substance P/neurokinin A-encoding) messenger RNAs (mRNAs) present in rat brain striatum and limbic tissues were determined by RNA protection experiments. The rank order of PPT mRNA concentration was striatum greater than nucleus accumbens much greater than bed nucleus of the stria terminalis greater(More)
We have previously found that CD30 ligand (CD30L; CD153)/CD30 signaling executed by the T-T cell interaction plays a critical role in Th17 cell differentiation, at least partly via downregulation of IL-2 production. In this study, we investigated the role of CD30L in the development of colitis experimentally induced by dextran sulfate sodium (DSS), in which(More)
The human dopamine transporter was expressed in Xenopus laevis oocytes following injection of mRNA isolated from human brain substantia nigra. The specific accumulation of [3H]dopamine into these oocytes was time and Na+ dependent. Furthermore, [3H]dopamine accumulation was prevented by coincubation of oocytes with dopamine (100 microM) or with the dopamine(More)
CD8 T cells expressing memory markers exist in naive mice and are thought to be of heterogeneous origin. It was recently reported that among such memory-phenotype (MP) CD8 T cells in naive mice, those expressing programmed death-1 (PD-1) had immune regulatory activity, but their origin and relationship with other regulatory CD8 T cell subsets remain(More)
C-type lectin receptors (CLRs) recognize pathogen-derived ligands and abnormal self that trigger protective immune responses. However, the precise nature of self ligands recognized by CLRs remains to be determined. Here, we found that Dectin-2 recognizes bone marrow-derived dendritic cells (BMDCs) using Dectin-2-expressing reporter cells. This activity was(More)
The nature and distribution of preprotachykinin (PPT, i.e. substance P/neurokinin A-encoding) gene expression in human basal ganglia was determined. Northern blot analysis visualized a single band of approximately 1300 bases, confirming the postmortem stability of PPT mRNA. Gross anatomical analysis indicated that PPT gene expression was relatively evenly(More)
  • 1