摘要:
This invention pertains to certain enzyme (CPG2) activated self-immolative nitrogen mustard prodrugs, which are useful in enzyme prodrug therapy (EPT), such as ADEPT and GDEPT, for the treatment of proliferative conditions, such as cancer, and which have the following formula: wherein: RN is independently C1-7alkyl; X1 is independently —I, —Br, or —Cl; X2 is independently —I, —Br, or —Cl; the group —N(CH2CH2X1)(CH2CH2X2) is independently attached at the 2-position or at the 4-position; each RG is independently —H or an ester substituent; n is independently an integer from 0 to 4; each RP, if present, is independently a phenyl substituent; m is independently an integer from 0 to 4; each RM, if present, is independently a mustard substituent; and pharmaceutically acceptable salts, solvates, amides, and esters thereof. The present invention also pertains to pharmaceutical compositions comprising such compounds; such compounds and compositions for use in methods of treatment of the human or animal body by therapy; the use of such compounds and compositions for the manufacture of medicaments for the treatment of proliferative conditions; and the like.
摘要:
The invention relates to new compounds for cancer therapy or diagnosis and to the use of a non-toxic B subunit of Shiga toxin mutant as a vector for diagnostic products or drugs in over-expressing Gb3 receptor cells, such compounds having the following formula: STxB-Z(n)-Cys-Y(m)-T wherein—STxB is the Shiga Toxin B subunit or a functional equivalent thereof, —Z(n) wherein n is 0 or 1, Z is an amino-acid residue devoid of sulfydryl groups, or is a polypeptide, —T is a molecule linked by a covalent bound to the S part of Cys, selected from: agents for in vivo diagnosis, cytotoxic agents, prodrugs, or enzymes for the conversion of a prodrug to a drug, —Y(m) wherein m is 0 or 1, Y is a linker between T and Cys, which is either cleavable or not cleavable for the release of T after the internalization of the hybrid compound into cells.
摘要:
The invention relates to the use of gene therapy in the treatment of aseptic loosening of orthopaedic prostheses and discloses methods of refixing such prostheses without open revision surgery. In particular, it provides adenoviral vectors and prodrugs for simultaneous, separate or sequential use in the destruction of interface tissue allowing subsequent recementing of loose prostheses in a minimally invasive manner.
摘要:
The invention provides biologically active erythropoietin (EPO) conjugate compositions wherein a transglutaminase reaction is employed to covalently and site specifically conjugate the EPO molecule to a non-antigenic hydrophilic polymer that can also be covalently linked to an organic molecule either of which modification increases the circulating serum half-life of the composition.
摘要:
The product of the invention is a modified form of a therapeutic agent and comprises a therapeutic agent, an oligopeptide having a plasmin peptide substrate of 2-4 amino acids and mono- or di-peptide linkage, a stabilizing group and, optionally, a linker group. The prodrug is cleavable by plasmin. Also disclosed are methods of making and using the prodrug compounds.
摘要:
A compound comprises a target cell-specific portion, such as an antibody specific to tumor cell antigens, and an inactivating portion, such as an enzyme, capable of converting a substance which in its native state is able to inhibit the effect of a cytotoxic agent into a substance which has less effect against said cytotoxic agent. The prolonged action of a cytotoxic agent at tumor sites is therefore possible while protecting normal tissues from the effects of the cytotoxic agent.
摘要:
This invention provides a method for identifying potential therapeutic agents by contacting a target cell with a candidate therapeutic agent which is a selective substrate for an endogenous, intracellular enzyme in the cell which is enhanced in its expression as a result of selection by biologic or chemotherapy. This invention also provides methods and examples of molecules for selectively killing a pathological cell by contacting the cell with a prodrug that is a selective substrate for an endogenous, intracellular enzyme. The prodrug is subsequently converted to a cellular toxin. Further provided by this invention is a method for treating a pathology characterized by pathological, hyperproliferative cells in a subject by administering to the subject a prodrug that is a selective substrate for an endogenous, overexpressed, intracellular enzyme, and converted by the enzyme to a cellular toxin in the hyperproliferative cell.
摘要:
Described herein are protein-drug conjugates and compositions thereof that are useful, for example, for target-specific delivery of therapeutic moieties, e.g., camptothecin analogs and/or derivatives. In certain embodiments, provided are specific and efficient methods for producing protein-drug constructs (e.g., antibody-drug conjugates) utilizing a combination of transglutaminase and 1,3-cycloaddition techniques. Camptothecin analogs, antibody-drug conjugates, and compositions which comprise glutaminyl-modified antibodies and camptothecin analog payloads and are provided.
摘要:
The present invention relates to the field of oligopeptide prodrugs that are intended for the treatment of cancer. The selectivity of these prodrugs requires the presence of an (oligo)peptidic moiety and/or a protective capping group to ensure the prodrug stability in blood. It further in particular relates to the exemplary oligopeptidic moiety ALGP and to prodrugs comprising it. In particular it also relates to the capping group phosphonoacetyl and to prodrugs comprising this capping group.
摘要:
The present disclosure relates to compositions and methods for treating Sanfilippo syndrome (also known as Sanfilippo disease type D, Sanfilippo D, mucopolysaccharidosis type IIID, MPS IIID). The method can entail injecting to the spinal fluid of a MPS IIID patient an effective amount of a composition comprising a recombinant human acetylglucosamine-6-sulfatase (GNS) protein comprising the amino acid sequence of SEQ ID NO: 1 or an amino acid sequence having at least 90% sequence identity to SEQ ID NO: 1 and having the enzymatic activity of the human GNS protein. The composition can be provided in an artificial cerebrospinal fluid. About 1 mg to about 100 mg of the recombinant polypeptide may be administered to the patient once every 2 weeks to 6 months.