University of California

Other

Boehringer Mannheim Gmbh

Roche Diagnostics Gmbh

Wiltrud Richter

Steinunn Baekkeskov

Mark Namchuk

Yuguang Shi

John Kim

Michael Brandt

Winfried Albert

Herbert Jungfer

Josef Endl

Rosemarie Kientsch-Engel

Thomas Eiermann

Werner Scherbaum

The invention concerns human monoclonal antibodies of the IgG isotype against human pancreatic islet cells which can be obtained by immortalizing human lymphocytes of prediabetics or diabetics, treating the culture supernatant of the immortalized cells with a conjugate of antibodies against human Fc &ggr; and a label, subsequently treating with human immunoglobulin, incubating with immobilized human pancreatic islet cells identifying an immortalized human cell culture which produces an antibody against pancreatic islet cells via determination of the label bound to the immobilized islet cells, isolating a human immortalized cell which produces this antibody, propagating this immortalized cell and isolating the monoclonal antibody produced by these cells. The invention also concerns a process for the isolation of an islet cell antigen to which such antibodies bind as well as a method for the determination of antibodies against an islet cell antigen of the pancreas.

Monoclonal antibodies of isotype IgG which bind specifically to glutamate decarboxylase, and uses thereof

The invention provides fragments of GAD.sub.65 that are specifically reactive with at least one class of GAD.sub.65 autoantibody. Most fragments are substantially free of N-terminal amino acids that would otherwise limit solubility. Different fragment contain epitopes for different classes of GAD.sub.65 autoantibodies. The fragments are used in methods of diagnosing and treating insulin dependent diabetes mellitus and stiff man syndrome.

Reagents and methods for the diagnosis and treatment of diabetes and

The invention concerns human monoclonal antibodies of the IgG isotype against human pancreatic islet cells which can be obtained by immortalizing human lymphocytes of prediabetics or diabetics, treating the culture supernatant of the immortalized cells with a conjugate of antibodies against human Fc .gamma. and a label, subsequently treating with human immunoglobulin, incubating with immobilized human pancreatic islet cells identifying an immortalized human cell culture which produces an antibody against pancreatic islet cells via determination of the label bound to the immobilized islet cells, isolating a human immortalized cell which produces this antibody, propagating this immortalized cell and isolating the monoclonal antibody produced by these cells. The invention also concerns a process for the isolation of an islet cell antigen to which such antibodies bind as well as a method for the determination of antibodies against an islet cell antigen of the pancreas.

Monoclonal antibodies against human pancreatic islet cells

Growing community of inventors

Ulm, Germany

Wiltrud Richter