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The term ex vivo means that the samples to be tested have been extracted from the organism. The term in vitro (lit. "within the glass") means the samples to be tested are obtained from a repository. In the case of cancer cells, a strain that would produce favorable results, then grown to produce a control sample and the number of samples ...
In vitro tests can also be combined with in vivo testing to make a in vitro in vivo test battery, for example for pharmaceutical testing. [ 39 ] In vitro to in vivo extrapolation
In microbiology, in vivo is often used to refer to experimentation done in a whole organism, rather than in live isolated cells, for example, cultured cells derived from biopsies. In this situation, the more specific term is ex vivo. Once cells are disrupted and individual parts are tested or analyzed, this is known as in vitro. [citation needed]
Tissue culture is an important tool for the study of the biology of cells from multicellular organisms. It provides an in vitro model of the tissue in a well defined environment which can be easily manipulated and analysed. In animal tissue culture, cells may be grown as two-dimensional monolayers (conventional culture) or within fibrous ...
These techniques can be performed either in vivo, ex vivo, or in vitro. [3] Ex vivo techniques enable a more accurate count of the T cells in a graft and also has the option to 'addback' a set number of T cells if necessary. Currently, ex vivo techniques most commonly employ positive or negative selection methods using immunomagnetic separation.
It's the ECM. So, when a doctor or a patient feels "a hard lump in the breast" and it is a cancer, what is hard is the ECM while the tumor itself is softer than the normal breast tissue. This has been demonstrated in vitro and more recently ex vivo and will soon be in vivo. [citation needed]
The problem of transposing in vitro results is particularly acute in areas such as toxicology where animal experiments are being phased out and are increasingly being replaced by alternative tests. Results obtained from in vitro experiments cannot often be directly applied to predict biological responses of organisms to chemical exposure in vivo.
In vitro maturation ... This experiment shows that IVM of oocytes obtained ex vivo during the processing of ovarian cortex prior to cryopreservation is a promising ...