A method is disclosed for modifying a sheet-shaped cell culture containing at least two types of cells. The method includes soaking the sheet-shaped cell culture in a low nutrient isotonic solution; and changing a content ratio of the at least two cell types constituting the sheet-shaped cell culture.

A method for screening host cells expressing a target protein is provided. The method includes the following steps: providing an expression vector, the expression vector including a promoter, a gene encoding a target protein and an FTH1 gene; transfecting the host cells with the expression vector; culturing the host cells in a medium; and adding iron ions to the medium, and screening the surviving host cells to obtain the host cells expressing the target protein. An expression vector and a method for establishing a cell line stably expressing an exogenous recombinant gene are also provided.

Techniques Nuc-seq, Div-Seq, and Dronc-Seq are allow for unbiased analysis of any complex tissue. Nuc-Seq, a scalable single nucleus RNA-Seq method, can sensitively identify closely related cell types, including within the adult hippocampus. Div-seq combines Nuc-Seq with EdU-mediated labeling of proliferating cells, allowing tracking of transcriptional dynamics of newborn neurons in an adult neurogenic region in the hippocampus. Dronc-Seq uses a microfluidic device to co-encapsulate individual nuclei in reverse emulsion aqueous droplets in an oil medium together with one uniquely barcoded mRNA-capture bead.

Provided is a cell population comprising differentiated cells obtainable by inducing differentiation of pluripotent stem cells, wherein the content ratio of undifferentiated pluripotent stem cells is 0.2% or less.

The present invention concerns enriched heterogeneous mammalian renal cell populations characterized by biomarkers, and methods of making and using the same.

The invention relates to a method for producing cartilage from pluripotent stem cells (PSCs), the method comprising providing chondrocytes by: 1) providing pluripotent stem cells (PSCs); 2) inducing differentiation of the PSCs into a primitive streak/mesendoderm by culturing the PSCs in hypoxic conditions, in a (mesendodermic) culture media comprising: i) a Wingless/Integrated (WNT) family member, ii) an Activin family member, and iii) a Fibroblast Growth Factor (FGF) family member; 3) inducing differentiation of the primitive streak/mesendoderm into a mesoderm by culturing the primitive streak/mesendoderm in hypoxic conditions, in a (mesodermic) culture media comprising: i) a FGF family member, ii) a bone morphogenetic protein (BMP) family member, iii) Follistatin, and iv) a Neurotrophin (NT); and 4) inducing differentiation of the mesoderm into chondrocytes by culturing the mesoderm in hypoxic conditions, in a (chondroinductive) culture media comprising: i) a FGF family member, ii) a BMP family member, iii) a Neurotrophin, and iv) a Growth/Differentiation Factor (GDF) family member; and forming a pellet of the chondrocytes and culturing the pellet of the chondrocytes in a culture media under hypoxic conditions to produce the cartilage. The invention further relates to methods of chondrocyte production, synthetically produced cartilage, and use in therapy.

A method for separating cells may include providing a sample having at least two different types of cell, contacting the sample with a cell culture substrate comprising a stimulus-responsive polymer layer, subjecting the cell culture substrate and the cells to medium conditions to where the cells adhere to the cell culture substrate, and modifying the medium conditions to decrease the adherence of one of the cells types to the cell culture substrate. The method may further include separating the cells released from the cell culture substrate from the cells still adhered to the cell culture substrate.

Populations of synthetic ABCB5+ stem cells, wherein greater than 96.8% of the population is an in vitro progeny of physiologically occurring skin-derived ABCB5− positive mesenchymal stem cells are provided. Also provided are methods of making the synthetic cells and methods of use thereof.

Methods for increasing a proportion of CD56 positive cells in sampled skeletal muscle tissue include soaking the sampled skeletal muscle tissue in a preservation solution.

Methods are provided herein for selectively killing senescent cells and for treating senescence-associated diseases and disorders by administering a senolytic agent. Senescence-associated diseases and disorders treatable by the methods using the senolytic agents described herein include cardiovascular diseases and disorders associated with or caused by arteriosclerosis, such as atherosclerosis; idiopathic pulmonary fibrosis; chronic obstructive pulmonary disease; osteoarthritis; senescence-associated ophthalmic diseases and disorders; and senescence-associated dermatological diseases and disorders.