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Articles 481 - 482 of 482
Full-Text Articles in Medical Specialties
Identification Of An Idiotypic Peptide Recognized By Autoantibodies In Human Immunodeficiency Virus-1-Infected Individuals, Q. L. Wang, H.-T. Wang, Edwin Blalock, Sybille Müller, Heinz Köhler
Identification Of An Idiotypic Peptide Recognized By Autoantibodies In Human Immunodeficiency Virus-1-Infected Individuals, Q. L. Wang, H.-T. Wang, Edwin Blalock, Sybille Müller, Heinz Köhler
Markey Cancer Center Faculty Publications
Antibodies against HIV-1 proteins in HIV-1-infected individuals share a cross-reactive idiotype defined by the monoclonal antiidiotypic antibody 1F7 (5). Using a computer algorithm based on the molecular recognition theory, regions of inverse hydropathy between the variable sequence of 1F7 and human monoclonal anti-HIV-1 antibodies were identified, which are assumed to be involved in idiotype-antiidiotype contacts. A peptide was designed from the proposed contact in the variable heavy chain framework 3-complementarity determining region 3 (FR3-CDR3) of human antibodies and was synthesized. This peptide is recognized by the antiidiotype 1F7 and inhibits the binding of 1F7 to human anti-HIV-1 antibodies which express …
Immune Response To The Carcinoembryonic Antigen In Patients Treated With An Anti-Idiotype Antibody Vaccine, Kenneth A. Foon, Mala Chakraborty, William J. John, Amanda Sherratt, Heinz Köhler, Malaya Bhattacharya-Chatterjee
Immune Response To The Carcinoembryonic Antigen In Patients Treated With An Anti-Idiotype Antibody Vaccine, Kenneth A. Foon, Mala Chakraborty, William J. John, Amanda Sherratt, Heinz Köhler, Malaya Bhattacharya-Chatterjee
Markey Cancer Center Faculty Publications
We have generated an IgG1 murine monoclonal anti-idiotype antibody (Ab2) designated 3H1, which mimics a specific epitope on the carcinoembryonic antigen (CEA). Patients with CEA positive tumors are immunologically "tolerant" to CEA. We used 3H1 as a surrogate for CEA for vaccine therapy of 12 patients with advanced colorectal cancer. Each of the patients received a minimum of four intracutaneous injections of aluminum hydroxide precipitated 3H1 at either 1, 2, or 4 mg dosage per injection. 9 of 12 patients demonstrated anti-anti-idiotypic (Ab3) response to 3H1. All nine patients generated specific anti-CEA antibody demonstrated by reactivity with radiolabeled purified CEA; …