introduction: acute idiopathic thrombocytopenic purpura (itp) is an autoimmune bleeding disorder of childhood caused by production of auto antibodies against platelets. the aim of the present study was to compare the efficacy of intravenous immunoglobulin (ivig) and intravenous anti-d(iv anti-d) in itp treatment. methods and materials: in a clinical trial, 43 children with acute itp referred to...

Simian virus 40 large T antigen is a multifunctional protein that is encoded by the early region of the viral genome. We constructed fusion proteins between simian virus 40 large T antigen and beta-galactosidase by cloning HindIII fragments A and D of the virus into the HindIII sites of expression vectors pUR290, pUR291, and pUR292. Large amounts of the fusion protein were synthesized when the ...

The ability of antibodies to interfere with anterograde transmission of herpes simplex virus (HSV) from neuronal axons to the epidermis was investigated in an in vitro model consisting of human fetal dorsal root ganglia innervating autologous skin explants in a dual-chamber tissue culture system. The number and size of viral cytopathic plaques in epidermal cells after axonal transmission from H...

B-lymphoproliferative disorder (BLPD) is a rare but severe complication of organ and bone marrow transplantation (BMT). Profound cytotoxic T-cell deficiency is thought to allow the outgrowth of Epstein-Barr virus-transformed B cells. When possible, reduction of immunosuppressive treatment or surgery for localized disease may cure BLPD. Therapeutic approaches using chemotherapy or antiviral drug...

Rh(D) antigen-containing polypeptide was prepared by immune precipitation of intact cDE/cDE erythrocytes by using a high-titer preparation of polyclonal anti-D. when isolated Rh(D) polypeptide was administered to rabbits, antibody was produced that was unresponsive toward Rh-positive and -negative cells but reacted strongly with the immunogen in enzyme-linked immunosorbent assay-type immunobind...

Previous reports have shown the A/J anti-para-azophenylarsonate (anti-Ar) antibodies that share a major cross-reactive idiotype (CRI) comprise a family of closely related but nonidentical molecules. Serological studies with CRI+ monoclonal anti-Ar antibodies have suggested the presence of a conserved idiotypic determinant within the family. The present study utilized monoclonal ant-idiotypic de...

Adhesion that is mediated by integrins is controlled dynamically to allow cell positioning and migration and to prevent abnormal trafficking and anchorage. Integrin signalling in response to ligand binding is achieved by a combination of receptor clustering and conformational changes. Both of these processes can be elicited from the inside of the cell (resulting in the acquisition of a highaffi...

CD19 is expressed on B- lineage cells and follicular dendritic cells and plays a key role in B cell malignancies and autoimmune diseases. Thus, it has been considered as potential target for several monoclonal antibodies (mAbs). For decades, chemotherapy has been known as one of the major antitumor therapies eradicating high proliferative tumor cells. But, anti- CD19 mAbs developed for treating...

IgG3 type. The hematic and serous blood group was identified as 0 Rh positive; anti-DNA and ANA antibodies were negative. Viral serology demonstrated IgM anti-varicella antibodies, anti-HIV, CMV, infectious mononucleosis and hepatitis serelogy was negative. An immunohematological study carried out at the regional transfusion center showed the 3+/4+ positivity for the direct Coombs’ test with th...