Abstract: Juvenile-onset recurrent respiratory papillomatosis is treated using active vaccination or passive immune therapy of neutralizing antibodies against HPV L2 neutralizing epitopes.

Abstract: The invention described herein provides a C-terminally truncated interferon having enhanced biological activity and the polynucleotides encoding such interferon. Also provided are methods for producing and using such truncated interferon.

Abstract: A polypeptide self-antigen useful in a tumor-specific vaccine mimics one or more epitopes of an antigen uniquely expressed by cells of the tumor. The polypeptide is preferably produced in a plant that has been transformed or transfected with nucleic acid encoding the polypeptide and is obtainable from the plant in correctly folded, preferably soluble form without a need for denaturation and renaturation. This plant-produced polypeptide is immunogenic without a need for exogenous adjuvants or other immunostimulatory materials. The polypeptide is preferably an scFv molecule that bears the idiotype of the surface immunoglobulin of a non-Hodgkin's (or B cell) lymphoma. Upon administration to a subject with lymphoma, the plant-produced, tumor-unique scFv polypeptide induces an idiotype-specific antibody or cell-mediated immune response against the lymphoma.

Abstract: The invention described herein encompasses (1) artificial preproproteins and the polynucleotides encoding them, (2) methods for producing these biomolecules, and (3) methods for their use. The artificial preproproteins of this invention comprise a protein assembly capable of producing a multimeric protein from a single protein. FIG. 4 illustrates generally the process by which a polynucleotide encoding the artificial preproprotein is introduced into a cell and a biomolecule of interest is produced.