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The blood and lymphatic systems are the two well-established circulatory systems. The existence of a third circulatory system representing acupuncture meridians was claimed in the 1960s. The very existence and function of the system, however, remained uncertain. We have found that microscopic nodes and ducts inside lymphatics, as well as on the surface of internal organs of the rat. The nodes and...
Rheumatoid arthritis (RA) is an inflammatory disease is one of the most serious medical problems, affecting ∼1% of all people worldwide, irrespective of race. The disease is autoimmune in nature and characterized by chronic inflammation of the synovial tissues in multiple joints that leads to joint destruction. Although T cells are central players in RA development, B cells are required for full penetrance...
4-1BB (CD137) is a powerful T-cell costimulatory molecule in the treatment of virus infections and tumors, but recent studies have also uncovered regulatory functions of 4-1BB signaling. Since 4-1BB triggering suppresses autoimmunity by accumulating indoleamine 2,3-dioxygenase (IDO) in dendritic cells (DCs) in an interferon (IFN)-γ-dependent manner, we asked whether similar molecular and cellular...
Interphotoreceptor retinoid binding protein (IRBP)-induced experimental autoimmune uveoretinitis (EAU) is a CD4 + T cell-mediated autoimmune disease. Development of EAU is inhibited by treatment with an agonistic anti-4-1BB mAb. Even established EAU was alleviated by anti-4-1BB mAb. However, inhibition of 4-1BB/4-1BB ligand (4-1BBL) interaction does not suppress the development of EAU. It...
A number of chemokines induce angiogenesis and endothelial cells express several chemokine receptors. To date, only a limited number of CC chemokines for CCR1 have been reported to induce angiogenic responses. We investigated the ability of CCL23 (also known as MPIF-1, MIP-3, or CKβ8) to promote angiogenesis, which induces chemotaxis of immune cells through CCR1. CCL23 promoted the chemotactic migration...
TL1A (VEGI/TNFSF15) is the ligand for DR3 (TNFRSF12) and is a newly identified member of the tumor necrosis factor superfamily (TNFSF). Previously, DR3 has been shown to have a role in atherogenesis through stimulation of matrix degrading enzymes including matrix metalloproteinase (MMP)-9. Immunohistochemical staining of human carotid atherosclerotic plaques revealed a high-level expression of TL1A...
Stimulation of murine macrophages with recombinant soluble glucocorticoid induced tumour necrosis factor receptor (GITR) induced cyclooxygenase (COX)-2 protein and generated significant amounts of PGE2. Previous result demonstrated that macrophages express GITR and GITR ligand constitutively. Induction of COX-2 was synergistic with interferon (INF)-γ. GITR/ligand system could deliver an activation...
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