Disclosed herein are compositions for assessing peptidoglycan (PG) biosynthesis in bacteria using modified D-amino acids covalently attached to a molecular rotor and visualizing the labeled PG in bacteria based upon the enhanced fluorescence of the molecular rotor incorporated in the PG. The resultant, labeled peptidoglycan structures are amenable for identification by microscopic visualization, flow cytometry or other suitable methods.

Disclosed are methods, compositions of matter, and kits useful for augmentation of cells through modification of cellular membrane properties following ex vivo treatment.

The invention relates to a method to determine, based on the activation level of NKT cells, the capacity of a peptidic epitope to selectively bind to CD1a, CD1b and/or CD1c proteins, a corresponding method to increase or decrease the selective binding of the peptidic epitope to CD1a, CD1b and/or CD1c proteins by modifying the epitope or its flanking regions, the corresponding modified epitopes and the activated NKT cells or parts thereof obtainable by these methods.

The present disclosure provides methods and systems for cell and bead processing or analysis. A method for processing a cell or bead may comprise subjecting a bead to conditions sufficient to change a first characteristic or set of characteristics (e.g., cell or bead size). Such a method may further comprise subjecting the cell or bead to conditions sufficient to change a second characteristic or set of characteristics. In some cases, crosslinks may be formed within the cell or bead.

The present disclosure provides compounds of Formula I and a process of preparing the compounds of Formula I. The present disclosure further provides a compound of Formula II, Formula III, and Formula IV. The present disclosure provides compounds of Formula I that are capable of modifying cell-cell interactions, cell-pathogen interactions, or cell-extracellular matrix interactions, and methods thereof.

The present invention provides, in certain aspects, a natural killer (NK) cell that expresses all or a functional portion of interleukin-15 (IL-15), and methods for producing such cells. The invention further provides methods of using a natural killer (NK) cell that expresses all or a functional portion of interleukin-15 (IL-15) to treat cancer in a subject or to enhance expansion and/or survival of NK cells.

An apparatus and method for the delivery and deposition of particles air-liquid-interface (ALI) cell cultures includes a sample inlet coupled to a growth tube having interior walls that are wet. The growth tube is configured to operate at a first temperature along a first length of the tube and a second temperature along a second length positioned between the first length and a growth tube outlet. The apparatus also includes a nozzle plate having a plurality of nozzles. The exposure chamber adapted to hold cell cultures at an air-liquid interface positioned underneath the plurality of nozzles and a temperature regulator adapted to control a temperature of the exposure chamber. The apparatus also includes a controller including instructions operable to cause the controller to maintain a relative humidity within the exposure chamber by controlling at least the second temperature of the growth tube and the temperature of the exposure chamber.

Described herein are compounds, compositions and methods for modification of the surface of a living cell with a therapeutically relevant targeting moiety. Also described herein are methods for treating disease states, such as acute myocardial ischemia or infarction, with said compositions, in a subject.

Cells and lipid-based structures are described herein, in particular cells and lipid-based structures comprising membrane portions derived from cells having a label covalently attached thereto, as are compositions and kits comprising such cells and structures, and methods for using the cells and structures, in particular for determining membrane coverage and/or orientation as well as for screening methods/assays, and the like.

A cell encapsulation device with a suction tube includes a cell encapsulation device for constructing a multicellular structure formed by culturing cells, the cell encapsulation device being provided with a porous membrane on at least one of a top surface and a bottom surface and a frame member at a side surface, and a suction tube having a first tubular member and a second tubular member, in which, a first through hole and a second through hole are formed in an outer circumferential surface of the frame member, the first through hole and the second through hole communicating with one end portion of the first tubular member and one end portion of the second tubular member, respectively, the other end portion of the first tubular member has a connection mechanism to a suction means at the other end portion thereof, and the other end portion of the second tubular member is open to the outside.