The present disclosure provides a cross-linked material comprising conjugates which include two or more separate affinity ligands bound to a non-polymeric framework, wherein the molecular weight of the non-polymeric framework is less than 10,000 Da; and multivalent cross-linking agents that non-covalently bind the affinity ligands of the conjugates and thereby cross-link the conjugates to form a cross-linked material, wherein the non-covalent bonds between the multivalent cross-linking agents and the affinity ligands are competitively dissociated in the presence of excess amounts of a target molecule. The present disclosure also provides methods of making and methods of using these materials. In other aspects, the present disclosure provides exemplary conjugates including conjugates for use in glucose responsive cross-linked materials.
The present disclosure provides crystalline insulin-conjugates. The present disclosure also provides formulations, methods of treatment, methods of administering, and methods of making that encompass these crystalline insulin-conjugates.
EXOGENOUSLY TRIGGERED CONTROLLED RELEASE MATERIALS AND USES THEREOF
申请人:Zion Todd C.
公开号:US20120046223A1
公开(公告)日:2012-02-23
The disclosure provides cross-linked materials that include multivalent cross-linking agents that bind an exogenous target molecule; and conjugates that include two or more separate affinity ligands bound to a conjugate framework, where in the two or more affinity ligands compete with the exogenous target molecule for binding with the cross-linking a agents and wherein conjugates are cross-linked within the material as a result of non-covalent interact ions between cross-linking agents and affinity ligands on different conjugates. The conjugates also include a drug.
In one aspect, the disclosure provides cross-linked materials that include multivalent lectins with at least two binding sites for glucose, wherein the lectins include at least one covalently linked affinity ligand which is capable of competing with glucose for binding with at least one of said binding sites; and conjugates that include two or more separate affinity ligands bound to a conjugate framework, wherein the two or more affinity ligands compete with glucose for binding with the lectins at said binding sites and wherein conjugates are cross-linked within the material as a result of non-covalent interactions between lectins and affinity ligands on different conjugates. These materials are designed to release amounts of conjugate in response to desired concentrations of glucose. Depending on the end application, in various embodiments, the conjugates may also include a drug and/or a detectable label.
CONJUGATE BASED SYSTEMS FOR CONTROLLED DRUG DELIVERY
申请人:Zion Todd C.
公开号:US20110301083A1
公开(公告)日:2011-12-08
Conjugates which comprise a drug and a ligand which includes a first saccharide; wherein the conjugate is characterized in that, when the conjugate is administered to a mammal, at least one pharmacokinetic or pharmacodynamic property of the conjugate is sensitive to serum concentration of a second saccharide. Exemplary conjugates and sustained release formulations are provided in addition to methods of use and preparation.