Rabbit Complement
Rabbit Complement - Related Videos
06:17
Depletion of Specific Cell Populations by Complement Depletion
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Cited by 15 •
2010
To effectively study the function of immune cell populations their purification is often required. Complement depletion is a fast and inexpensive technique for the isolation of immune cell populations with high purity.
01:27
Complement System
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2024
The complement system is a group of approximately 20 plasma proteins that strengthen the body's defenses against infections through opsonization, inflammation, and cell lysis. Opsonization involves coating pathogens with complement proteins, making them more recognizable and facilitating phagocyte engulfment. Certain complement proteins induce inflammation that attracts immune cells to the site of infection. Cell lysis involves the destruction of pathogens through the formation of a membrane...
00:49
Complementation Tests
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2021
A complementation test is a simple cross to identify whether the two mutations are located on the same gene or different genes. It was first performed by Edward Lewis in the 1940s while working on fruit flies. He developed the test to identify the location and arrangement of different mutations on chromosomes. Organisms heterozygous for different mutations are crossed pairwise in all combinations. If present on different genes, the mutations can complement each other by providing the missing...
03:22
Modeling Complement-Mediated Phagocytosis Using Opsonized Red Blood Cells In Vitro
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2026
Source: Nagre, N., et al. Alveolar Macrophage Phagocytosis and Bacteria Clearance in Mice. J. Vis. Exp. (2019).This video demonstrates the assessment of complement receptor-mediated phagocytosis using sheep red blood cells opsonized with IgM and complement, followed by their uptake by mouse macrophages. The extent of phagocytosis is quantified by measuring a blue chromogenic product formed through hemoglobin-catalyzed oxidation of diaminofluorene.
01:30
Blood Collection in Rabbits
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2026
All animal procedures described here must be conducted in accordance with institutional animal ethics guidelines and approved by IACUC. All procedures must follow the principles of the 3Rs—Replacement, Reduction, and Refinement—and must be performed by trained personnel. Blood sampling is commonly performed in laboratory rabbits for research and clinical applications. The collection site is selected based on the required sample volume, sampling frequency, and study objectives. As a general...
FAQs
Rabbit Complement can be activated through classical, lectin, or alternative pathways. These routes provide distinct entry points into the same broader defense system, where complement enzymes cleave C3 and generate biologically active fragments. Comparing pathway-associated activity helps researchers examine how innate defense and antibody-mediated responses contribute to microbial susceptibility and inflammatory outcomes during infection.
C3 cleavage generates fragments with two major downstream consequences identified in the overview: opsonization and inflammation. Opsonization-related activity helps explain how complement marks targets for immune handling, while inflammatory activity connects complement activation with broader infection responses. Examining these outcomes can show whether an experimental system displays enhanced microbial handling, inflammatory effects, or both.
The membrane attack complex represents a terminal complement outcome rather than an earlier fragment-mediated effect. Terminal components assemble on susceptible microbial membranes, whereas C3-derived fragments promote opsonization and inflammation. This distinction allows experiments to consider different consequences of activation: direct membrane-associated damage through the terminal complex versus immune recognition and inflammatory coordination through earlier complement products.
Measuring endogenous activity and adding complement are complementary experimental strategies. Measurement can characterize the activity present in a plasma or serum-based system, whereas addition can test how complement availability changes an immune response. In infection studies, these approaches help clarify serum bactericidal activity and complement-dependent antibody effects, supporting more informative interpretation of immune interactions.
Assays incorporating Rabbit Complement can help determine whether microbial susceptibility is associated with complement activity and whether antibody effects depend on complement. These measurements are especially relevant when interpreting serum bactericidal activity, because they connect observed antimicrobial outcomes with both innate complement function and antibody-associated responses. The results can also guide the design of comparative immune assays.
Rabbit complement supports several research questions beyond measuring direct antimicrobial activity. Investigators can examine pathogen susceptibility, immune complex clearance, and interactions between innate and adaptive immunity. Using it in experimental systems also provides context for studying how complement-dependent antibody effects behave across assays, making the system relevant to comparative immunology and broader infection-focused investigations.