C12N2500/98

Endogenous retrovirus transcription as a marker for primate naive pluripotent stem cells

An in vitro method for identifying, isolating and/or enriching primate naive pluripotent stem cells, the method including analyzing transcription of a type 7 long terminal repeat (LTR7) nucleic acid sequence of a type H human endogenous retrovirus (HERVH) (LTR7/HERVH-associated transcription), and identifying, isolating and/or enriching primate naive pluripotent stem cells based on LTR7/HERVH-associated transcription, wherein LTR7/HERVH-associated transcription is a marker for primate naive pluripotent stem cells. An isolated in vitro population of primate naive pluripotent stem cells is obtained by the method, wherein in the cells LTR7/HERVH-associated transcription is elevated in comparison to control cells, wherein control cells are primed pluripotent stem cells or differentiated cells.

Process for generation, identification and isolation of human pluripotent stem cell-derived cardiomyocytes and cardiomyocyte subpopulations

The present invention provides a method for generation, isolation, detection and/or analysis of cardiomyocytes derived from a starting cell composition comprising pluripotent and/or multipotent stem cells, the method comprising the steps a) differentiating said pluripotent and/or multipotent stem cells into cardiovascular cells, thereby generating a sample comprising cardiomyocytes and non-cardiomyocytes; and b) labeling the non-cardiomyocytes of said sample with more than one antibody or antigen binding fragment thereof specific for antigens of non-cardiomyocytes and c) depleting said labeled non-cardiomyocytes from said sample; and optionally d) labeling the cardiomyocytes of said sample with at least one antibody or antigen binding fragment thereof specific for antigen(s) of cardiomyocytes; and e) enriching said labeled cardiomyocytes and detecting and isolating cardiomyocyte subtypes derived from said pluripotent and/or multipotent stem cells.

PREPARATION OF HUMAN ALLOGENEIC LIVER-DERIVED PROGENITOR CELLS

The invention relates to a process for the manufacture of a population of human allogeneic liver-derived progenitor cells (HALPC). The process comprises the use of a xeno- and serum-free culture medium comprising purified native or recombinant human serum albumin.

LOW DENSITY CELL CULTURE

A method of producing a collection of natural killer cells from CD34.sup.+ human stem cells. The invention further provides to a collection of natural killer cells thus produced and a pharmaceutical composition having such, natural killer cells. Further, the invention relates to a method of using the pharmaceutical composition as a medicament, in particular for immunotherapy in the treatment of malignancies.

METHODS OF CULTURING HUMAN PLURIPOTENT CELLS

A culture of human pluripotent stem cells (hPSCs) is disclosed. In the culture, more than 50% of the hPSCs are formative hPSCs and are capable of renewing. Uses thereof are also disclosed.

USE OF NEUROPILIN-1 (NRP1) AS A CELL SURFACE MARKER FOR ISOLATING HUMAN CARDIAC VENTRICULAR PROGENITOR CELLS
20220112458 · 2022-04-14 ·

The present invention provides NRP1 as a cell surface marker for isolating human cardiomyogenic ventricular progenitor cells (HVPs), in particular progenitor cells that preferentially differentiate into cardiac ventricular muscle cells. Additional HVP cell surface markers identified by single cell sequencing are also provided. The invention provides in vitro methods of the separation of NRP1+ ventricular progenitor cells, and the large scale expansion and propagation thereof. Large clonal populations of isolated NRP1+ ventricular progenitor cells are also provided. Methods of in vivo use of NRP1+ ventricular progenitor cells for cardiac repair or to improve cardiac function are also provided. Methods of using the NRP1+ ventricular progenitor cells for cardiac toxicity screening of test compounds are also provided.

PROCESSES FOR PRODUCTION OF TUMOR INFILTRATING LYMPHOCYTES AND USED OF THE SAME IN IMMUNOTHERAPY
20220090018 · 2022-03-24 ·

The present invention provides improved and/or shortened methods for expanding TILs and producing therapeutic populations of TILs, including novel methods for expanding TIL populations in a closed system that lead to improved efficacy, improved phenotype, and increased metabolic health of the TILs in a shorter time period, while allowing for reduced microbial contamination as well as decreased costs. Such TILs find use in therapeutic treatment regimens.

BROWN FAT CELL COMPOSITIONS AND METHODS

Methods of developing and using cell lines, such as stem cell lines, for therapeutic or cosmetic use. In one embodiment, the cell lines are used to treat a wide range of degenerative and metabolic disorders including, but not limited to, obesity, diabetes, hypertension, and cardiac deficiency. Also described are methods of using such cell lines to screen for compounds that play a role in regulating a variety of processes.

SYNTHETIC ATTACHMENT MEDIUM FOR CELL CULTURE

An aqueous cell culture medium composition includes an aqueous cell culture solution configured to support the culture of mammalian cells. The composition further includes a synthetic polymer conjugated to a polypeptide dissolved in the aqueous cell culture solution. The synthetic polymer conjugated to a polypeptide is configured to attach to the surface of a cell culture article under cell culture conditions. Incubation of the aqueous cell culture medium composition on a cell culture surface under cell culture conditions results is attachment to the surface of the synthetic polymer conjugated to the polypeptide.

METHODS FOR PRODUCING RETINAL PIGMENT EPITHELIUM CELLS

Method comprises providing a culture of human pluripotent stem cells adherent on a first substrate comprising a first laminin; exposing the stem cells to a differentiation medium for a first time period of 15 days to 50 days to obtain a first population of adherent cells comprising RPE cells and/or progenitors thereof; at the end of the first time period, dissociating the first population from the first substrate; replating the dissociated first population of cells on a second substrate comprising a second laminin; and culturing the replated first population of cells on the second substrate for a second time period to obtain an expanded and matured second population of cells comprising the RPE cells. The first and second laminins may be independently selected from LN-521, LN-511, LN-111 and LN-121, and are an intact protein or protein fragment. Cell surface markers useful for in vitro generation of RPE cells selected from CD140b, CD56, CD104, CD164, CD220, EGER, GD2, CD184, CD10, CD30, CD49a, CD49b, CD50, CD171, TRA-1-60 and CD326, preferably CD140b, CD56, GD2 and/or CD184. Also included are RPE cells so produced as well as materials and compositions utilizing such RPE cells for various treatments.