Recently, great attention has been drawn to IgG4-related diseases such as autoimmune pancreatitis (AIP) sclerosing sialadenitis, retroperitoneum fibrosis, sclerosing cholangitis. IgG4-related diseases are characterized by high serum IgG4 concentrations, sclerosing inflammation with numerous IgG4-positive plasma cells, and steroid sensitivity irrespective of their organs of origin. In this repor...

Tubulointerstitial nephritis (TIN) is the most common form of renal involvement in IgG4-related disease. It is characterized by a dominant infiltrate of IgG4-positive plasma cells in the interstitium and storiform fibrosis. Demonstration of IgG4-positive plasma cells is essential for diagnosis, but the number of IgG4-positive cells and the ratio of IgG4-positive/IgG-positive plasma cells may va...

BACKGROUND IgG4-related disease (IgG4-RD) is a novel disease named in recent years. Because of its varied clinical manifestations, like tumor but not tumor, it brings a great challenge to clinical diagnosis. Trypsin and T-cell receptor (TCR) are thought to mediate the regulation of B cell maturation, survival and antibody production. In this study, we investigated the clinical features and impo...

PR81 is a monoclonal antibody that binds with high affinity to MUC1 that over expressed on breast tumors. PR81 is considered a suitable targeting molecule that was radiolabeled using Cu-64 for positron imaging studies. The monoclonal antibody was conjugated with DOTA moiety and after purification was evaluated for radiochemical purity, immunoreactivity, cell toxicity and structure integrity as ...

Schistosomiasis remains a public health concern in developing countries, and rapid reinfection fostered by continued exposure to contaminated water sources necessitates a vaccine to augment current mass treatment-based control strategies. We report isotype-specific (immunoglobulin A [IgA], IgE, IgG1, IgG4, and IgG) antibody responses to soluble worm antigen preparation and the recombinant vacci...

Background and Study Aim: Recently, immunohistochemistry has shown numerous IgG4-positive plasma cells in a subset of Hashimoto’s thyroiditis (HT), and this type of HT (IgG4 HT) appears to be a subtype of IgG4-related sclerosing disease. However, little is known about the distribution pattern of plasma cells in IgG4 thyroiditis. To clarify the distribution pattern of IgG4-positive plasma cells,...

Immunoglobulin (Ig) G4-related disease (IgG4-RD) is a systemic, refractory, chronic inflammatory disease characterized by high serum IgG4 levels and histopathological findings of IgG4-positive plasma cell infiltration and fibrosis.1,2 Although recent reports have documented cases of refractory chronic rhinosinusitis (CRS) accompanied by IgG4 infiltration (IgG4-CRS),3e5 the underlying mechanism ...

1.1 The concept of immunoglobulin G4-related sclerosing disease Immunoglobulin G4 (IgG4) is the rarest subclass of IgG, which is numbered 1 through 4 in the order of their discovery and serum concentration, and normally constitutes only 3 to 6% of the total IgG fraction (Oxelius, 2008). IgG4 antibody has unique structural and functional properties, and the production of IgG4 appears to be drive...

a murine igm monoclonal antibody (ma-2c6) with κ-light chains directed against an antigenic determinant of outer surface protein a (ospa) of the lyme disease spirochete, borreliaburgdorferi, is produced. this antibody could bind specifically to ospa antigen of several isolates of b. burgdorferi, but not to the non-lyme disease bacteria such as t. pallidum and b. hermsii. antibody ma-2c6 was pur...

The IgG subclass reactivities of six anticellular antibodies were measured by indirect immunofluorescence on HEp2 cells using murine monoclonal antibodies to the four human IgG subclasses. Patients with scleroderma, primary biliary cirrhosis (PBC), systemic lupus erythematosus, and mixed connective tissue disease were studied. Anticentromere antibody (ACA) was virtually all IgG1 and 3; antibody...