摘要:
Disclosed are treatment agents and methods of treatment utilizing the agents directed toward diseases in which the disease causing pathogen includes α6β1 integrin receptors and/or α6β4 integrin receptors on the surface of the pathogen. In one embodiment, the disease can be breast cancer. The therapeutic agents disclosed include a polypeptide comprising at least a portion of the G domain of the laminin-5 α3 chain that has been shown to bind α6β1 integrin receptors and α6β4 integrin receptors. In one embodiment, the therapeutic agents can be fused or chimeric materials in which the laminin-5 α3 chain polypeptide has been chemically bound to another material that can be useful in the destruction or neutralization of the pathogen.
摘要:
The preparation and use of nucleic acid promoter fragments homologous to the Em gene of wheat to bring the expression of selected genes in plants under external control are described. The Em promoter fragment is responsive to abscisic acid (ABA) and other compounds possessing ABA-like activity. Through transformation of protoplasts and plant cells with recombinant DNA constructs incorporating such promoter fragments, operably linked selected genes are expressed in response to ABA and compounds possessing ABA-like activity. The application of such promoter fragments and constructs to transient assay systems to predict the likelihood of stable transformation in plants is disclosed.