Disclosed are cysteine variants of interleukin-11 (IL-11) and methods of making and using such proteins in therapeutic applications.

The present disclosure relates to targeted degradation platform technology. For example, the present disclosure relates to bispecific binding agents for degrading endogenous proteins, whether membrane-associated or soluble, using the lysosome pathway. The disclosure also provides methods useful for producing such agents, nucleic acids encoding same, host cells genetically modified with the nucleic acids, as well as methods for modulating an activity of a cell and/or for the treatment of various disorders.

The present invention relates to: a fusion polypeptide in which an anti-inflammatory polypeptide and a ferritin monomer fragment are bound; and a pharmaceutical composition for treating inflammatory diseases, containing the same as an active ingredient and, more specifically, to: a fusion polypeptide in which an anti-inflammatory polypeptide is fused to an N-terminus and/or a C-terminus of a ferritin monomer fragment from which a portion of a fourth loop and a fifth helix, of a human derived ferritin monomer, are removed; and a use thereof for treating inflammatory diseases. As in the above, the fusion polypeptide, which has an amino acid sequence represented by SEQ ID NO: 1 and in which an anti-inflammatory polypeptide is fused to an N-terminus and/or a C-terminus of a fragment of a human-derived ferritin monomer, can fuse two types of anti-inflammatory polypeptides, acting through different mechanisms, into a nano cage and administer the same, and thus the fusion polypeptide can exhibit an excellent effect in the treatment of inflammatory diseases including sepsis.

The invention provides methods of producing and purifying fusion proteins containing a domain capable of binding one or more extracellular matrix components, such as heparin and chondroitin sulfate, by cation-exchange chromatography.

The present invention relates to methods, kits and compositions for expansion of embryonic hematopoietic stem cells and providing hematopoietic function to human patients in need thereof. In one aspect, it relates to kits and compositions comprising a Notch agonist, one or more growth factors, and, optionally, an inhibitor of the TGF pathway. Also provided herein are methods for expanding embryonic hematopoietic stem cells using kits and compositions comprising a Notch agonist, one or more growth factors, and, optionally, an inhibitor of the TGF pathway. The embryonic hematopoietic stem cells expanded using the disclosed kits, compositions and methods include cells derived from an embryo (e.g., aorta-gonad-mesonephros region of the embryo), embryonic stem cells, induced pluripotent stem cells, or reprogrammed cells of other types. The present invention also relates to administering the embryonic hematopoietic stem cells expanded using a combination of a Notch agonist, one or more growth factors, and, optionally, an inhibitor of the TGF pathway to a patient for short-term and/or long-term in vivo repopulation benefits.

IL-11Ra antibodies are disclosed. Also disclosed are compositions comprising the IL-11Ra antibodies, and methods using the IL-11Ra antibodies.

IL-11 antibodies are disclosed. Also disclosed are compositions comprising the IL-11 antibodies, and methods using the IL-11 antibodies.

The present invention relates to methods, kits and compositions for expansion of embryonic hematopoietic stem cells and providing hematopoietic function to human patients in need thereof. In one aspect, it relates to kits and compositions comprising a Notch agonist, one or more growth factors, and, optionally, an inhibitor of the TGFp pathway. Also provided herein are methods for expanding embryonic hematopoietic stem cells using kits and compositions comprising a Notch agonist, one or more growth factors, and, optionally, an inhibitor of the TOP pathway. The embryonic hematopoietic stem cells expanded using the disclosed kits, compositions and methods include cells derived from an embryo (e.g., aorta-gonad-mesonephros region of the embryo), embryonic stem cells, induced pluripotent stem cells, or reprogrammed cells of other types. The present invention also relates to administering the embryonic hematopoietic stem cells expanded using a combination of a Notch agonist, one or more growth factors, and, optionally, an inhibitor of the TGFp pathway to a patient for short-term and/or long-term in vivo repopulation benefits.

Compositions and methods are presented in which recombinant IL-11 is PEGylated to achieve improved half-life in serum while having desirable therapeutic activity and presenting less side-effects. Most preferably, the IL-11 is an N-terminally truncated human or humanized IL-11 and has a 20 Kd or 40 Kd branched PEG moiety, Y- or comb-shaped in particular, coupled to the N-terminal amino group. Such compounds are characterized by substantially increased stability in serum and sustained biological activity while exhibiting significantly reduced plasma expansion.

The present invention relates to modified SAK gene having amino acid SEQ ID 2. The present invention further relates to process for cloning and expressing modified SAK gene fusion protein which imparts improved stability to the heterologous protein of interest. Further the invention relates to process of purification of recombinant heterologous proteins from bacterial inclusion bodies using modified SAK.