A compound includes cytotoxic agents such as microcystin and nodularin. More specifically, a modified microcystin and/or nodularin compound contains one or more modified substrates, wherein one or more modified substrates include an anchor group directly accessible or transformable for use in conjugation chemistry (incl. click chemistry), for the attachment of a targeting moiety. This compound is useful for cancer treatment.

A compound includes cytotoxic agents such as microcystin and nodularin. More specifically, a modified microcystin and/or nodularin compound contains one or more modified substrates, wherein one or more modified substrates include an anchor group directly accessible or transformable for use in conjugation chemistry (incl. click chemistry), for the attachment of a targeting moiety. This compound is useful for cancer treatment.

The invention provides compositions and methods for preventing or treating cancer in a subject. In some embodiments, the compositions comprise isolated peptides and/or isolated oligonucleotides. In other embodiments, peptides of the present invention are conjugated with cell-penetrating peptides. Vectors, cells, and kits for preventing or treating cancer are also provided herein.

Provided herein are cyclic polypeptide compounds that can, e.g., bind specifically to human proprotein convertase subtilisin/kexin type 9 (PCSK9) and optionally also inhibit interaction between human PCSK9 and human low density lipoprotein receptor (LDLR), and pharmaceutical compositions comprising one or more of these compounds. Also provided are methods of reducing LDL cholesterol level in a subject in need thereof that include administering to the subject one or more of the cyclic polypeptide compounds or a pharmaceutical composition provided herein.

Provided herein are cyclic polypeptide compounds that can, e.g., bind specifically to human proprotein convertase subtilisin/kexin type 9 (PCSK9) and optionally also inhibit interaction between human PCSK9 and human low density lipoprotein receptor (LDLR), and pharmaceutical compositions comprising one or more of these compounds. Also provided are methods of reducing LDL cholesterol level in a subject in need thereof that include administering to the subject one or more of the cyclic polypeptide compounds or a pharmaceutical composition provided herein.

Provided herein is the conjugation of an amanita toxin compound to a cell-binding molecule with branched linkers for having better targeted treatment of abnormal cells. It also relates to a branched-linkage method of conjugation of an amanita molecule to a cell-binding ligand, as well as methods of using the conjugate in targets treatment of cancer, infection and autoimmune disease.

The present invention relates to polypeptides which are covalently bound to non-aromatic molecular scaffolds such that two or more peptide loops are subtended between attachment points to the scaffold. In particular, the invention describes peptides which are high affinity binders of membrane type 1 metalloprotease (MT1-MMP), such as the collagen binding site of MT1-MMP. The invention also describes drug conjugates comprising said peptides, conjugated to one or more effector and/or functional groups which have utility in imaging and targeted cancer therapy.

The present invention relates to polypeptides which are covalently bound to non-aromatic molecular scaffolds such that two or more peptide loops are subtended between attachment points to the scaffold. In particular, the invention describes peptides which are high affinity binders of membrane type 1 metalloprotease (MT1-MMP), such as the collagen binding site of MT1-MMP. The invention also describes drug conjugates comprising said peptides, conjugated to one or more effector and/or functional groups which have utility in imaging and targeted cancer therapy.

The present invention relates to polypeptides which are covalently bound to molecular scaffolds such that two or more peptide loops are subtended between attachment points to the scaffold. In particular, the invention describes peptides which are high affinity binders of thymic stromal lymphopoietin (TSLP). The invention also includes pharmaceutical compositions comprising said peptide ligands and to the use of said peptide ligands in preventing, suppressing or treating a disease or disorder mediated by TSLP.

The present invention relates to polypeptides which are covalently bound to molecular scaffolds such that two or more peptide loops are subtended between attachment points to the scaffold. In particular, the invention describes peptides which are high affinity binders of thymic stromal lymphopoietin (TSLP). The invention also includes pharmaceutical compositions comprising said peptide ligands and to the use of said peptide ligands in preventing, suppressing or treating a disease or disorder mediated by TSLP.