While therapies such as corticosteroids, cyclophosphamide, and mycophenolate mofetil have improved outcomes, a significant proportion of patients have refractory disease or are unable to tolerate these agents. Limitations in existing therapies, along with advances in our understanding of the immunopathogenesis of SLE, have resulted in the development of new immunosuppressive and immunomodulatory treatments for SLE/LN. Dysfunction of the B lymphocyte – an important component of adaptive immunity – is thought to be important in the pathogenesis
of SLE/LN. The goal of this study is to review our current understanding of the role of B cells in the pathogenesis of SLE, and to discuss new and emerging selleck therapies that selectively target B cells in patients with SLE/LN. Novel strategies discussed include B-cell depletion by the monoclonal antibodies to B-cell markers, rituximab and epratuzumab; ‘pharmapheresis’
of pathogenic antibodies to dsDNA, by abetimus; blockade of T-cell costimulation of B cells by abatacept, belatacept, BG9588, and IDEC-131; and blockade of B-cell stimulation by belimumab. Preliminary results are promising, but in the absence of large controlled trials, caution must be exercised prior to the widespread use and acceptance of these treatments.”
“Neuropathic pain is a long-lasting clinical problem that is often refractory to medical management. Gene transfer of specific genes for therapeutic benefit offers GDC 0068 selleck inhibitor a novel approach to the treatment of neuropathic pain. In this study, we tested whether the transfer of the glutamic acid decarboxylase (GAD) gene to dorsal root ganglion (DRG) cells would attenuate below-injury level central neuropathic pain after spinal cord injury (SCI) by using a novel human foamy virus (HFV) vector to achieve release of gamma-aminobutyric acid (GABA). Subcutaneous inoculation of a replication-defective HFV vector, which expresses GAD (vector rdvGAD67) for 7 days after T13 spinal cord hemisection,
reversed mechanical allodynia and thermal hyperalgesia evoked by SCI. The antiallodynic effect lasted 6 weeks and was reestablished by reinoculation. We also found that subcutaneous inoculation of rdvGAD67 resulted in enhanced production of GAD and tonical GABA release from transduced DRG neurons. These results suggest that HFV-mediated gene transfer to DRG could be employed to treat below-injury level central neuropathic pain after incomplete SCI. (c) 2007 Elsevier Ireland Ltd. All rights reserved.”
“In polycystic kidney disease, abnormal epithelial cell proliferation is the main factor leading to cyst formation and kidney enlargement. Cyclic AMP ( cAMP) is mitogenic in cystic but antimitogenic in normal human kidney cells, which is due to reduced steady-state intracellular calcium levels in cystic compared to the normal cells.