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What is organotypic?

What is organotypic?

Organotypic culture is defined as the culture of an organ collected from an organism. It is one method allowing the culture of complex tissues or organs. It allows the preservation of the architecture of the cultured organ and most of its cellular interactions.

What is difference between organ culture and organotypic culture?

Organ culture uses undisaggregated tissue, while organotypic implies recombination of cells previously disaggregated and maintained as cell lines.

What is the difference between spheroids and Organoids?

Spheroids are spherical cellular units that are generally cultured as free-floating aggregates and are arguably of low complexity in mirroring tumor organization. In general, organoids can be referred to as cells grown in 3D to form structural units that partially resemble the organ, both in structure and function [7].

How are organotypic culture made?

Organotypic cultures consist of sectioned tumour tissue into thin slices, mounted onto porous membranes for mechanical support and incubated in a controlled condition19.

What is organotypic slice culture?

Organotypic brain slice cultures (BSCs) represent a physiologically relevant three-dimensional model of the brain. BSCs support all the central nervous system (CNS) cell types and can be produced from brain areas involved in neurodegenerative disease.

What are spheroids in cell culture?

What are spheroids? Spheroids are three-dimensional (3D) cell aggregates that can mimic tissues and microtumors. In recent years, there has been significant progress in development of in vitro aggregates of tumor cells for use as models for in vivo tissue environments.

What is prolate and oblate?

There are two kinds of spheroids-oblate and prolate; the former as the shape of an orange, the latter that of a lemon. The straight line that runs through the centre of a sphere or spheroid and terminates at the circumference is called the diameter.

What is the purpose of organoids?

Organoids enable to study how cells interact together in an organ, their interaction with their environment, how diseases affect them and the effect of drugs. In vitro culture makes this system easy to manipulate and facilitates their monitoring.

How do organoids work?

How are organoids made? Organoids are essentially just three-dimensional tissue cultures grown from stem cells. To get the organoids to grow “correctly,” scientists create a specific environment for the stem cells that allow them to follow their ingrained genetic instructions to organize in the specified structure.

How long does it take to grow an Organoid?

Starting with the plating of digested tissue material, full-grown organoids can usually be obtained in ∼2 weeks. The culture protocol we describe here is currently the only one that allows the growth of both the luminal and basal prostatic epithelial lineages, as well as the growth of advanced prostate cancers.

What is slice culture?

Slice cultures maintain a three-dimensional organisation with the preservation of cytoarchitecture and cell populations, and are an accessible system lending their application to electrophysiology, morphology and biochemical analyses 3– 5.

What is organotypic culture?

Organotypic culture is defined as the culture of an organ collected from an organism. It is one method allowing the culture of complex tissues or organs.

What are the best models for dynamic analysis of organogenesis?

Dynamic analyses of organogenesis have instead relied on model systems, such as Caenorhabditis elegans, Drosophila melanogaster, Xenopus laevis and zebrafish. The goal of reconstituting organ function ex vivo is broadly shared, and there are successful examples for most tissues and organs ( Table 1 ).

What can be done to improve the organotypic slice culture model?

Taken together, the organotypic slice cultures are a potent in vitrosystem for studying many of the brain’s cells. However, there are several challenging options for further improving this model. (1) There is a clear need to reconstruct axotomized neuronal pathways to establish functional pathways.

Is the self-organization of mammary epithelial cells dynamic and lineage-intrinsic?

Chanson, L. et al. Self-organization is a dynamic and lineage-intrinsic property of mammary epithelial cells. Proc. Natl Acad. Sci. USA 108, 3264–3269 (2011).