摘要:
A microfluidic device (10) for culturing and/or analysing at least one cell type is disclosed. The device (10) comprises a plurality of chambers (30), arranged in a radial expansion model. Chambers (30) have a central aperture (32) for receiving and/or removing the first cell type into the chamber (30). The device (10) comprises a wall (40) on the perimeter of each chamber (30), and a feed channel network (50) outside each chamber adjacent to the wall (40) for conveying culture medium, reagents and/or a second cell type. The feed channel network (50) is provided with a central port (51) and configured such that culture medium, reagents, and/or a second cell type provided to the central port are distributed symmetrically in a radial fashion in the feed channel network (50). The wall (40) of the device (10) has a plurality of microfluidic diffusion channels (42) for allowing flow of the culture medium, reagents and/or the second cell type from the feed channel (50) into each chamber (30). Methods of culturing cells using such a device are also disclosed.
摘要:
La présente invention se rapporte à un procédé de dimensionnement d'un dispositif microfluidique pour confiner un échantillon. L'échantillon à confiner peut comprendre des cellules (échantillon biologique) ou de microparticules en suspension dans un milieu fluide porteur. La présente invention concerne également un procédé de dimensionnement d'un dispositif microfluidique pour confiner un explant contenu dans un milieu fluide de culture cellulaire.
摘要:
Systems and methods for producing and using a body having a first structure defining a first chamber, a second structure defining a second chamber, a membrane located at an interface region between the first chamber and the second chamber to separate the first chamber from the second chamber. The first chamber comprises a first permeable matrix disposed therein and the first permeable matrix comprises at least one or a plurality of lumens each extending therethrough, which is optionally lined with at least one layer of cells. The second chamber can comprise cells cultured therein. The systems and methods described herein can be used for various applications, including, e.g., growth and/or differentiation of primary cells, and/or simulation of a microenvironment in living tissues and/or organs (to model physiology or disease states, and/or to identify therapeutic agents). The systems and methods can also permit co-cultures of two or more different cell types.
摘要:
A microfluidic device for determining a response of cells comprises a microchannel and a seeding channel. The microchannel is at least partially defined by a porous membrane having cells adhered thereto. The microchannel has a first cross-sectional area. The seeding channel delivers a working fluid to the cells within the microchannel. The seeding channel has a second cross-sectional area that is less than the first cross-sectional area such that a flow of the working fluid produces a substantially higher shear force within the seeding channel to inhibit the attachment of cells within the seeding channel. And when multiple seeding channels are used to deliver fluids to multiple microchannels that define an active cellular layer across the membrane, the seeding channels are spatially offset from each other such that fluid communication between the fluids occurs only at the active region via the membrane, not at the seeding channels.
摘要:
A bioreactor (1) for cell co-culture comprising at least first and second cell culture chambers (2, 4). The first and second chambers (2, 4) are separated by a porous membrane (6) for cell culture. The membrane (6) comprises at least one sealing gasket (12) integrated in the membrane (6) being integral therewith. The sealing gasket (12) defines a closed perimeter delimiting a first cell culture area (16).
摘要:
A cell culturing platform for modeling myelination in vitro comprises first cell chambers (102a, 102b) for containing somas of neuronal cells, a process chamber (103) connected to the first cell chambers with first channels, and a second cell chamber (105) for containing somas of the myelinating cells and connected with second channels to the process chamber. The first channels allow processes of the neuronal cells to enter the process chamber and inhibit the somas of the neuronal cells from moving from the first cell chambers to the process chamber. The second channels allow processes of the myelinating cells to enter the process chamber and inhibit the somas of the myelinating cells from moving from the second cell chamber to the process chamber. Hence, the process chamber, where the myelination takes place, is substantially free from the cell somas and thus detection of the myelination is facilitated.
摘要:
Disclosed herein are various bioreactor devices and systems for growing cellular material, and related methods of growing cellular material. In some cases, a system can include a well plate having a plurality of wells and a bioreactor situated in each well of the well plate. In some cases, a bioreactor can include an inner body which divides the bioreactor into several distinct chambers and facilitates the growth of a multi-tissue sample in the bioreactor. In some cases, a system can include a mechanical actuator situated to mechanically stress tissues grown in a bioreactor.
摘要:
A three dimensional cell culture and bioreactor system is provided. The system comprises one or more cell culture chamber. Each cell culture chamber comprises an inlet port and an outlet port in fluid communication with the cell culture chamber. The cell culture chambers may be segregated or in fluid communication with one another. The systems may be used to conduct drug efficacy test, isolate certain cell types from a complex tissue sample of multiple cell types, allow for the ex vivo culturing of patient tissue samples to help guide the course of treatment, and conduct co-culture experiments.
摘要:
The present invention relates to a tissue bioreactor (10)for culturing tissue explants (17) ex vivo. The bioreactor (10) comprises a chamber with a cavity comprising an open end (13) with a first inner wall diameter, a closed end (14) with a second inner wall diameter, and a ledge (15) encircling the inner wall of the chamber between the closed end (14) and the open end (13); located gel support (16) is arranged between said ledge (15) and said closed end (14) of said cavity onto which a soft tissue explant (17) is arranged. The cavity comprises an inlet (18) and an outlet (19) for continuous flow of medium through the tissue bioreactor (10). The invention also relates to a method for growing and studying a soft tissue explant exvivoin said bioreactor. The bioreactor and method of the invention is advantageously used when studying the effects and physiological processes during wound healing and/or soft tissue integration optionally after the soft tissue explant has been exposed to a physical, biological or chemical insult. (Fig 1)