The present invention is intended to provide a novel culture method of liver-derived cells. In other words, liver-derived cells are co-cultured with one or more types of cells selected from a group consisting of intestine-derived cells, lung-derived cells, and embryonic membrane-derived cells. Alternatively, the liver-derived cells may be cultured in the presence of the culture supernatant obtained by culturing one or more types of cells selected from the group consisting of intestinal-derived cells, lung-derived cells, and embryonic membrane-derived cells.

Provided herein is a placental product comprising an immunocompatible chorionic membrane. Such placental products can be cryopreserved and contain viable therapeutic cells after thawing. The placental product of the present invention is useful in treating a patient with a tissue injury (e.g. wound or burn) by applying the placental product to the injury. Similar application is useful with ligament and tendon repair and for engraftment procedures such as bone engraftment.

The present invention relates to stem cells derived from a multi-layered cellular structure or blastocyst structure, compositions comprising the same, and methods for obtaining the same.

The present invention is based on the discovery that cells enriched with mitochondria are useful for treating diseases and disorders. Disclosed are pharmaceutical compositions of mitochondrially-enriched genetically engineered T cells and methods of treatment using mitochondrially-enriched genetically engineered T cells.

The present invention aim at providing a novel animal cell growth promoter. Specifically, a culture supernatant of an embryonic membrane derived from an avian or reptilian fertilized egg is use as an animal cell growth promoter. For example, by adding, to an animal cell culture medium, an animal cell growth promoter comprising, as an active ingredient, a culture supernatant of an embryonic membrane derived from an avian or reptilian fertilized egg, the animal cell growth can be promoted.