Protozoa Culture In Vitro
Protozoa Culture In Vitro - Related Videos
17:36
Testing Protozoacidal Activity of Ligand-lytic Peptides Against Termite Gut Protozoa in vitro (Protozoa Culture) and in vivo (Microinjection into Termite Hindgut)
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Cited by 11 •
2010
We present procedures for demonstrating that ligands bind to the surface membrane of the cellulose-digesting protozoa in the gut of Formosan subterranean termites using fluorescent microscopy and that ligands coupled with lytic peptides kill these protozoa in vitro (anaerobic protozoa culture) and in vivo (injection into the termite hindgut).
08:03
An In Vitro Organ Culture Model of the Murine Intervertebral Disc
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Cited by 22 •
2017
Whole organ culture of the intervertebral disc (IVD) preserves the native extracellular matrix, cell phenotypes, and cellular-matrix interactions. Here we describe an IVD culture system using mouse lumbar and caudal IVDs in their functional spinal units and several applications utilizing this system.
03:05
In Vitro Culture and Differentiation of Primary Monocytes into Macrophages
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2025
This video demonstrates the priming of primary monocytes into macrophages. Primary human monocytes can be isolated and differentiated to an M1-like pro-inflammatory phenotype using the granulocyte-macrophage colony-stimulating factor (GM-CSF) or to an M2-like anti-inflammatory phenotype using the macrophage colony-stimulating factor (M-CSF).
11:19
Silk Film Culture System for in vitro Analysis and Biomaterial Design
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Cited by 22 •
2012
Silk films are a novel class of biomaterials readily customizable for an array of biomedical applications. The presented silk film culture system is highly adaptable to a variety of in vitro analyses. This system represents a biomaterial design platform offering in vitro optimization before direct translation to in vivo models.
08:39
Human T Lymphocyte Isolation, Culture and Analysis of Migration In Vitro
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Cited by 27 •
2010
T lymphocyte migration occurs during homing to lymphoid organs, exit from the vasculature, and entering into peripheral tissues. Here, we describe a protocol that can be used to analyze T lymphocyte migration in vitro.
FAQs
These conditions determine whether protozoan cells remain viable, multiply, and express normal biological behaviors. Temperature and pH must remain within suitable ranges, while oxygen availability and nutrient supply affect cellular metabolism and growth. Controlling these variables gives researchers a reproducible system for examining motility, metabolism, life-cycle changes, or responses to environmental stress.
Defined media provide specified components, whereas complex media contain nutrient mixtures whose precise composition may be less fully characterized. This distinction affects experimental control and how readily researchers can relate a cellular response to particular nutrients or conditions. Selecting the appropriate medium helps match the culture system to studies of growth, physiology, or environmental responses.
Aseptic technique limits the introduction and spread of contaminating organisms during culture handling. Contamination can alter the available nutrients, environmental conditions, or observed cellular responses, making results difficult to interpret. Maintaining clean procedures therefore protects culture integrity and supports reliable comparisons between experiments, including antimicrobial testing and studies of protozoan biology.
Subculturing transfers part of an established population into fresh culture conditions before the system loses viability or becomes unsuitable for continued maintenance. The process renews access to nutrients and allows the population to continue growing under controlled conditions. Repeated transfers also provide a consistent supply of cells for observation, comparison, and experimental testing.
A general workflow begins by selecting suitable culture media and environmental conditions, then introducing protozoa under aseptic conditions. Researchers maintain the culture at appropriate temperature, pH, oxygen, and nutrient levels, observe its condition, and periodically subculture viable populations into fresh medium. This sequence preserves a usable laboratory population while keeping experimental conditions controlled.
In vitro systems are useful when researchers need controlled and repeatable conditions that may be difficult to achieve in a natural environment or host. They allow direct examination of cell structure, motility, metabolism, life cycles, and host–parasite interactions. Such control also supports comparisons among treatments and observations of responses to defined environmental changes.
These cultures can reveal changes in cellular behavior, metabolic activity, life-cycle progression, and survival under altered conditions. They also support testing of antimicrobial compounds, investigation of disease mechanisms, and analysis of host–parasite interactions. Consequently, the approach contributes to microbiology, parasitology, ecology, and experimental biology by providing a standardized system for comparative studies.