[EN] CHARGE VARIANT LINKERS<br/>[FR] LIEURS DE VARIANTS DE CHARGE
申请人:SEAGEN INC
公开号:WO2021207701A1
公开(公告)日:2021-10-14
The present disclosure provides, inter alia, ADCs with charge variant chemical linkers useful in treating various diseases such as cancer and autoimmune disorders.
Dithioamine reducing agents useful for the reduction of disulfide bonds. The reducing agents of this invention are useful, for example, to reduce disulfide bonds, particularly in proteins, or to prevent the formation of disulfide bonds, particularly in proteins and other biological molecules. Reducing agents of this invention can be employed to regulate protein function in proteins in which a sulfhydryl group is associated with biological activity. Reducing agents of this invention can prevent inactivation of a given protein or enhance activation of a given protein or other biological molecule in vitro and/or in vivo. Reducing agents of this invention can prevent or reduce oxidation of cysteine residues in proteins and prevent the formation of reduced activity protein dimers (or other oligomers). Reducing agents of this invention are useful and suitable for application in a variety of biological applications, particularly as research and synthetic reagents.
A Potent, Versatile Disulfide-Reducing Agent from Aspartic Acid
作者:John C. Lukesh、Michael J. Palte、Ronald T. Raines
DOI:10.1021/ja211931f
日期:2012.3.7
Dithiothreitol (DTT) is the standard reagent for reducing disulfide bonds between and within biological molecules. At neutral pH, however, >99% of DTT thiol groups are protonated and thus unreactive. Herein, we report on (2S)-2-amino-1,4-dimercaptobutane (dithiobutylamine or DTBA), a dithiol that can be synthesized from L-aspartic acid in a few high-yielding steps that are amenable to a large-scale process. DTBA has thiol pK(a) values that are similar to 1 unit lower than those of DTT and forms a disulfide with a similar E degrees' value. DTBA reduces disulfide bonds in both small molecules and proteins faster than does DTT. The amino group of DTBA enables its isolation by cation-exchange and facilitates its conjugation. These attributes indicate that DTBA is a superior reagent for reducing disulfide bonds in aqueous solution.
[EN] PRO-DRUGS AND RELATED METHODS<br/>[FR] PROMÉDICAMENTS ET MÉTHODES ASSOCIÉES
申请人:APOSENSE LTD
公开号:WO2017017669A1
公开(公告)日:2017-02-02
The invention relates to Pro-drugs, comprising red-ox-sensitive cleavage sites. The compounds may be utilized in medical practice for targeting of si RNA, antisense oligonucleotides or protein-based therapeutics to the cytoplasmatic compartment of cells both in vitro or in vivo, in a subject in need.