Mesenchymal stem cells(MSC) are cells of stromal origin which exhibit unlimited self-renewal capacity and pluripotency in vitro.It has recently been observed that MSC may also exert a profound immunosuppressive and an...Mesenchymal stem cells(MSC) are cells of stromal origin which exhibit unlimited self-renewal capacity and pluripotency in vitro.It has recently been observed that MSC may also exert a profound immunosuppressive and anti-inflammatory effect both in vitro and in vivo with consequent potential use in autoimmune disorders.We present the case of a patient suffering from childhood-onset, multidrug resistant and steroiddependent Crohn's disease who underwent systemic infusions of MSC, which led to a temporary reduction in CCR4, CCR7 and CXCR4 expression by T-cells, and a temporary decrease in switched memory B-cells, In addition, following MSC infusion, lower doses of steroids were needed to inhibit proliferation of the patient's peripheral blood mononuclear cells.Despite these changes, no significant clinical benefit was observed, and the patient required rescue therapy with infliximab and subsequent autologous hematopoietic stem cell transplantation.The results of biological and in vitro observations after MSC use and the clinical effects of infusion are discussed, and a brief description is provided of previous data on MSC-based therapy in autoimmune disorders.展开更多
Congenital dermal sinuses are a rare entity of spinal dysraphism. Most patients have cutaneous markers of their presence, including nevus or port wine stains, dimple, hypertrichosis and subcutaneous lipoma. Inclusion ...Congenital dermal sinuses are a rare entity of spinal dysraphism. Most patients have cutaneous markers of their presence, including nevus or port wine stains, dimple, hypertrichosis and subcutaneous lipoma. Inclusion tumors, such as dermoid tumor, are associated to dermal sinus tract;they are congenital, benign and slow-growing lesions of midline. Their clinical relevance is due to the possibility of causing infection, spinal abscess, signs of corde or nerve root compression. Spinal Magnetic Resonance Imaging (MRI) is the diagnostic tool of choice. We present the case of a child with atypical meningitis, resistant to large spectrum antibiotic therapy, caused by an infected dermoid cyst, undiagnosed in the first months of life despite repeated MRI.展开更多
文摘Mesenchymal stem cells(MSC) are cells of stromal origin which exhibit unlimited self-renewal capacity and pluripotency in vitro.It has recently been observed that MSC may also exert a profound immunosuppressive and anti-inflammatory effect both in vitro and in vivo with consequent potential use in autoimmune disorders.We present the case of a patient suffering from childhood-onset, multidrug resistant and steroiddependent Crohn's disease who underwent systemic infusions of MSC, which led to a temporary reduction in CCR4, CCR7 and CXCR4 expression by T-cells, and a temporary decrease in switched memory B-cells, In addition, following MSC infusion, lower doses of steroids were needed to inhibit proliferation of the patient's peripheral blood mononuclear cells.Despite these changes, no significant clinical benefit was observed, and the patient required rescue therapy with infliximab and subsequent autologous hematopoietic stem cell transplantation.The results of biological and in vitro observations after MSC use and the clinical effects of infusion are discussed, and a brief description is provided of previous data on MSC-based therapy in autoimmune disorders.
文摘Congenital dermal sinuses are a rare entity of spinal dysraphism. Most patients have cutaneous markers of their presence, including nevus or port wine stains, dimple, hypertrichosis and subcutaneous lipoma. Inclusion tumors, such as dermoid tumor, are associated to dermal sinus tract;they are congenital, benign and slow-growing lesions of midline. Their clinical relevance is due to the possibility of causing infection, spinal abscess, signs of corde or nerve root compression. Spinal Magnetic Resonance Imaging (MRI) is the diagnostic tool of choice. We present the case of a child with atypical meningitis, resistant to large spectrum antibiotic therapy, caused by an infected dermoid cyst, undiagnosed in the first months of life despite repeated MRI.
