The present invention relates to alternatively activated macrophages (AAMs) for use in the treatment of liver injury and methods of treating and preventing liver injury using AAMs.

The invention presented here relates to a method for producing an artificial environment of primary cell populations, particularly an artificial tumor environment of primary tumor cell populations and its use in an ex vivo method to test the cellular responsiveness of primary tumor cell populations to a drug or drugs. The method of the invention comprises incubation of the primary tumor cells with the artificial tumor environment and the drug or drugs and analyze the response of the primary tumor cell populations. The incubation of the primary tumor cells with the artificial tumor environment, enhances the viability of said tumor cells and/or induces greater levels of tumor cell proliferation and, consequently, increases the sensitivity and accuracy of the test with regard to the drug/s assayed.

Provided is a muscle stem cell in vitro culture method. A muscle stem cell is cultivated in vitro by using a cell culture medium of a cell factor added with a blood cell or a conditioned medium of the blood cell. Also provided is a culture medium used in the muscle stem cell in vitro culture method and an application thereof.

Novel MSC stem-cell culture and therapy methods and culture medium compositions for the purpose of inducing, activating, or priming discrete uniform cell phenotypes to selectively promote or suppress inflammation and immunity, yielding polarized, primed, activated, or induced cells used in cell-based therapy.

An immune cell proliferation activation kit includes a first unit including a T cell stimulating substance, and a second unit including a steroidal agent. The kit suppresses regulatory T cells (Treg) during immune cell culture to allow any one of natural killer cells (NK cells) and T cells from among immune cells to efficiently proliferate, and efficiently amplifies and activates immune cells for a long period of time.

Novel MSC stem-cell culture and therapy methods and culture medium compositions for the purpose of inducing, activating, or priming discrete uniform cell phenotypes to selectively promote or suppress inflammation and immunity, yielding polarized, primed, activated, or induced cells used in cell-based therapy.

Provided is a method for producing an economical bovine serum composition containing many factors useful for cell proliferation. The method includes a step of performing an anticoagulation treatment of bovine whole blood with an anticoagulant, a step of obtaining a buffy coat and a fraction with a heavier specific gravity than that of the buffy coat from the anticoagulated whole blood, and a step of promoting and activating an interaction between the obtained leukocytes and platelets at a given temperature for not less than a given time to cause secretion or release of a humoral factor from the leukocytes and/or platelets and performing a recoagulation treatment of blood components including the humoral factor with a re-coagulating agent.

Compositions, methods of treatment for liver disease such as liver fibrosis, compositions, and methods for the manufacture thereof, comprising a plurality of macrophages derived from human induced pluripotent stem cells (iPSCs), wherein the macrophages are polarized to a pro-inflammatory M1 phenotype and/or an anti-inflammatory M2 phenotype. Administration reduces fibrogenic gene expression and liver disease associated histological markers. The M1 macrophages express elevated CD80, TNF-? and IL-6. The M2 macrophages express elevated CD206, CCL17, and CCL22.

Human iPSC-derived macrophages, methods for the manufacture thereof, and methods of treatment of cancer and other conditions therewith. Human iPSC-derived macrophages further comprise a chimeric antigenic receptor (CAR) expressed thereon, such as Bai1, MegF10 or MerTK, referred to as iPSC-derived CAR-expressing macrophages (iPSC-CARMAs). The methods of treatment provide further co-administering to the subject an effective amount of iPSC-CARMAs and an antibody specific for the cancer, such as anti-CD47 or anti-EGFR antibody. The iPSC-derived macrophages promote phagocytic activity, reduce tumor burden, and improve subject survival.

In one aspect, a method of treating a subject having or at risk of having graft-versus-host disease (GvHD) generally includes administering to the subject a plurality of myeloid-derived suppressor cells (MDSCs) effective to ameliorate at least one symptom or clinical sign of graft-versus-host disease compared to a suitable control subject. In another aspect, a method of treating a tumor in a subject generally includes administering to the subject an anti-tumor therapy and co-administering to the subject an inflammasome inciting agent in an amount effective to increase inflammasome activation of MDSCs sufficiently to reduce suppressor function of the MDSCs.