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Ocular Instillation of Vitamin A-Coupled Liposomes Containing HSP47 siRNA Ameliorates Dry Eye Syndrome in Chronic Graft-Versus-Host Disease
Chronic graft-versus-host disease (GVHD) is characterized by multiorgan fibrosis and affects the quality of life of transplant survivors. Ocular manifestations are found in 40-60% of GVHD patients, and the most common symptom is dry eye syndrome associated with lacrimal gland fibrosis. We previously demonstrated heat shock protein 47 (HSP47), a collagen specific molecular chaperone, plays a critical role in excessive collagen synthesis in chronic GVHD, and systemic administration of vitamin A-coupled liposomes carrying HSP47 siRNA (VA-lip HSP47) ameliorates skin and salivary gland fibrosis in chronic GVHD (Yamakawa, et al, Blood 2018).
Source: Biology of Blood and Marrow Transplantation - January 31, 2019 Category: Hematology Authors: Hiroyuki Ohigashi, Daigo Hashimoto, Shuichiro Takahashi, Tomohiro Yamakawa, Eiko Hayase, Takanori Teshima Tags: 229 Source Type: research

Vitamin A-coupled liposomes containing siRNA against HSP47 ameliorate skin fibrosis in chronic graft-versus-host disease
Chronic graft-versus-host disease (GVHD) after allogeneic hematopoietic stem cell transplantation (SCT) is characterized by multiorgan fibrosis and profoundly affects the quality of life of transplant survivors. Heat shock protein 47 (HSP47), a collagen-specific molecular chaperone, plays a critical role in collagen synthesis in myofibroblasts. We explored the role of HSP47 in the fibrotic process of cutaneous chronic GVHD in mice. Immunohistochemical analysis showed massive fibrosis with elevated amounts of collagen deposits and accumulation of F4/80+ macrophages, as well as myofibroblasts expressing HSP47 and retinol-bin...
Source: Blood - March 29, 2018 Category: Hematology Authors: Yamakawa, T., Ohigashi, H., Hashimoto, D., Hayase, E., Takahashi, S., Miyazaki, M., Minomi, K., Onozawa, M., Niitsu, Y., Teshima, T. Tags: Transplantation Source Type: research