Xeno-free Culture
Xeno-free Culture - Related Videos
08:45
Method for Culture of Early Chick Embryos ex vivo (New Culture)
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Cited by 9 •
2008
This video demonstrates New culture, a method by which chick embryos are cultured outside the egg for up to 24 hr. This method enables one to study early development (primitive streak to 14 som.), a period corresponding to E7-9 in mouse. Applications of this technique include electroporation, in situ hybridization and immunohistochemistry.
10:41
Culture and Co-Culture of Mouse Ovaries and Ovarian Follicles
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Cited by 16 •
2015
This protocol describes the primary culture/co-culture of mouse ovarian tissue, using ovaries from neonatal mice and individual ovarian follicles from prepubertal mice. The culture techniques support development in a highly physiological manner, allowing investigation of the effect of extrinsic agents on the ovary, and of interactions between ovarian follicles.
08:47
Culturing Mouse Cardiac Valves in the Miniature Tissue Culture System
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Cited by 10 •
2015
Here, we present an ex vivo flow model in which murine cardiac valves can be cultured allowing the study of the biology of the valve.
10:04
The Method of Rodent Whole Embryo Culture using the Rotator-type Bottle Culture System
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Cited by 21 •
2010
Whole embryo culture technique allows us to culture mouse and rat embryos ex vivo condition during limited periods corresponding to midgestation stages. In this video protocol, we demonstrate our standard procedures of rat whole embryo culture after E12.5 using the rotator-type bottle culture system.
08:43
Primary Neuronal Cultures
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2023
The complexity of the brain often requires neuroscientists to use a simpler system for experimental manipulations and observations. One powerful approach is to generate a primary culture by dissecting nervous system tissue, dissociating it into single cells, and growing those cells in vitro. Primary cultures make neurons and glia easily accessible to the experimental tools required for techniques like genetic manipulation and time-lapse imaging. Furthermore, these cultures represent a highly...
FAQs
The main mechanistic advantage is signal control. Removing animal serum and feeder cells reduces undefined biological inputs that can alter cell survival, proliferation, or differentiation. Human-derived, recombinant, or chemically defined substitutes allow investigators to attribute developmental responses more confidently to the intended culture conditions, rather than to variable components carried in with animal products.
They provide different ways to reduce nonhuman and undefined inputs. Human-derived materials reduce nonhuman exposure, recombinant components provide specified biological inputs, and chemically defined formulations minimize undefined composition. The choice depends on the desired balance between biological support and experimental control. Each option must still sustain cell survival, proliferation, or differentiation.
Reproducibility improves when cultures receive more consistent inputs. Animal-derived materials can introduce biological variation that is difficult to define across preparations or laboratories. By replacing those inputs with human-derived, recombinant, or chemically defined alternatives, investigators can compare developmental results under more controlled conditions and better distinguish true biological differences from culture-related variation.
A xeno-free workflow starts by identifying which animal-derived materials are present, then selecting suitable human-derived, recombinant, or chemically defined replacements. Researchers must establish conditions that maintain the target cells and assess whether survival, proliferation, and differentiation remain supported. This staged comparison helps reveal whether the revised culture preserves the intended developmental behavior.
In developmental biology, the approach is especially useful for examining stem cell maintenance, lineage specification, and tissue formation. With fewer unwanted signals from animal products, investigators can study how controlled culture conditions influence transitions between developmental states. This makes xeno-free systems valuable for dissecting developmental processes and for comparing results across experiments or laboratories.
Xeno-free culture connects basic developmental studies with regenerative medicine. Conditions that support controlled stem cell maintenance, differentiation, and tissue formation can help researchers generate cells or tissues with greater clinical relevance. The reduced reliance on nonhuman materials also supports consistency during development, while the culture system must still demonstrate that the desired cells or tissues are produced reliably.