Described herein are methods for providing an in vitro intestinal model system, e.g., using primary cells instead of cell lines and/or cancerous cells.

Methods of producing human stem cells are disclosed for parthenogenetically activating human oocytes by manipulation of O.sub.2 tension, including manipulation of Ca.sup.2+ under high O.sub.2 tension and contacting oocytes with serine threonine kinase inhibitors under low O.sub.2 tension, isolating inner cell masses (ICMs) from the activated oocytes, and culturing the cells of the isolated ICMs under high O.sub.2 tension. Moreover, methods are described for the production of stems cells from activated oocytes in the absence of non-human animal products, including the use of human feeder cells/products for culturing ICM/stem cells. Stem cells produced by the disclosed methods are also described.

The disclosure relates to populations of educated macrophages and monocytes generated ex vivo or in vivo, and methods of making and using the same using lipid A aminoalkylglucosaminide phosphate molecules, such as CRX molecules or extracellular vesicles (EVs) from mesenchymal stromal cells (MSC) stimulated with CRX molecules. Also described are EVs and methods for making and using the same from MSCs exposed to CRX.

A method for decellularization of a skin tissue according to an embodiment of the present invention comprises: a step of preparing a skin tissue to be decellularized; a peeling preparation step of treating the skin tissue with a first solution containing trypsin; and a peeling step of removing subcutaneous fat from the skin tissue after the peeling preparation step.

Provided herein are methods and systems for bio-printing of three-dimensional organs and organoids. Also provided herein are bio-printed three-dimensional organs and organoids for use in the generation and/or the assessment of immunological products and/or immune responses. Also provided herein are methods and system for bio-printing three-dimensional matrices.

The invention relates to an ex vivo generated population of tissue-specific anti-inflammatory macrophages and methods of making and using such macrophages.

The invention includes a method of evaluating a bovine embryo by fertilizing an egg obtained from a first bovine heterozygote of a recessive lethal haplotype with sperm cells obtained from a second bovine heterozygote of the recessive lethal haplotype; producing the embryo from the fertilized egg, wherein the embryo is homozygous for the lethal haplotype; establishing a cell culture from the embryo; collecting a plurality of cultured cells; and obtaining omics data, comprising one or more features, from the plurality of cultured cells.

The present disclosure is directed to viable bioengineered skin constructs.

The present invention describes a method for producing de novo papillae comprising the steps of a) providing isolated dermal papilla fibroblasts (DPF) from at least one dermal papilla (DP) from at least one hair follicle, b) providing isolated connective tissue sheath fibroblasts (CTSF) from at least one hair follicle and c) co-culturing the DPF with the CTSF under substantially non-adherent cell culture conditions to form spheroid cell aggregates.

The present invention relates to a method of promoting skin rejuvenation in a subject. The method comprises administering to the subject an effective amount of a cellular extract of epithelial or mesenchymal stem/progenitor cells isolated from the amniotic membrane of the umbilical cord, wherein the cellular extract contains growth factors and peptides and is in the form of a supernatant into which the epithelial or mesenchymal stem/progenitor cells secrete the growth factors and peptides.