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Euroimmun launches SARS-CoV-2 NeutraLISA Assay to determine the neutralizing capacity of antibodies

Euroimmun

CE marked assay based on well-established ELISA technology expands Euroimmun's offerings for labs that seek to understand immune response to COVID-19

18 Apr 2021
Diane Li
Assistant Editor

Product news

Euroimmun, a PerkinElmer, Inc. Company, has announced the launch of the SARS-CoV-2 NeutraLISA™ assay, a surrogate neutralization test intended for the detection of neutralizing antibodies against SARS-CoV-2, the pathogen causing COVID-19. The CE marked assay adds to the Company’s broad portfolio of COVID-19 diagnostics and is currently available in more than 30 countries that accept the CE mark.

In COVID-19, antibodies that target the viral receptor binding domain (RBD) in the S1 domain of the SARS-CoV-2 spike protein have been shown to exhibit a virus-neutralizing capacity, which predominately are IgG antibodies.

SARS-CoV-2 enters a human host cell through interaction of its RBD with the host cell ACE2 receptor. However, if the RBD is blocked by specific antibodies formed during immune response, the virus cannot continue to infect and proliferate within the human body. This is why many leading COVID-19 vaccine developments are also based on this protein domain.

The Euroimmun SARS-CoV-2 NeutraLISA imitates this natural process by determining the inhibitory effect of antibodies capable of hampering the interaction between biochemically produced RBD and ACE2. Unlike standard neutralization tests, which can be labor-intensive and require handling of the live virus in a specialized high-safety laboratory setting, the SARS-CoV-2-NeutraLISA assay is based on well-established ELISA technology and uses non-pathogenic viral proteins. As such, the assay can be processed in common lab settings either manually or automatically.

“In addition to disturbing or altogether inhibiting the pathogen from binding to a host cell, neutralizing antibodies may last for years in the human body and can potentially prevent SARS-CoV-2 infection and reinfection,” said Dr. Wolfgang Schlumberger, CEO of Euroimmun. “The SARS-CoV-2 NeutraLISA assay supplements Euroimmun's existing CE-marked QuantiVac™ ELISA and SARS-CoV-2 Interferon-gamma Release Assay which is expected to be available with CE mark soon. In combination, the assays make a powerful trio to help evaluate the immune response to SARS-CoV-2 induced through natural infection or vaccination with S1/RBD-based vaccines from multiple angles.”

Euroimmun offers a comprehensive COVID-19 product portfolio, including real-time PCR tests, an antigen detection assay for acute diagnostics, multiple antibody tests and a dried blood spot solution to support assessment of the immune response. In addition, EUROIMMUN offers the Interferon-gamma Release Assay to evaluate specific T-cell response, currently available for research use only, and provides automation systems for small, medium and high sample throughput workflows.

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AntibodiesAntibodies are used in techniques such as confocal and fluorescence microscopy, flow cytometry, ELISA, ELISPOT, immunohistochemistry, western blotting and immunopreciptation. Select specific antigen reactivity, high specific affinity, low non-specific binding, monoclonal or polyclonal, primary or secondary antibodies and associated conjugates such as an enzyme or dye for visualization.Cell Adhesion AssaysCell adhesion assays are used to quantitate attachment and analyze the molecular mechanisms for extracellular matrix adhesion, cell migration and sensitivity to inhibitors. Find the best cell adhesion assay equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Cell-Based AssaysCell-based assays are used to monitor the presence, quantity and activities of a desired cellular analyte including drug molecules or biomarkers. This can reveal information on cell health (apoptosis, cytotoxicity, viability and proliferation assays), cell metabolism, cell migration and cell signaling mechanisms. Find the best cell-based assay products, kits and equipment with our peer reviewed product directory: compare products, check customer reviews and receiving pricing direct from manufacturers.Clinical ChemistryBiochemistry (or clinical chemistry) involves the analysis of bodily fluids using chemical tests. Techniques used include HPLC, chromatography, spectroscopy, mass spectrometry, immunochemical, electrophoresis, turbidometric / spectrophotometric assay, MRI and ISE analysis. Tests are often carried out on plasma or serum but urine (urinalysis) and fecal specimens are also processed.Clinical MicrobiologyMicrobiology is the study of microorganisms including protists, prokaryotes, fungi, and, often, viruses. Microorganisms are a useful research tool as genetic vectors and, in immunology, for antibiotic susceptibility testing, cellular biology and genetics. Microorganisms commonly grow readily in incubators with microbial culture media; this can contain chromogenic supplements to differentiate between cell lines. Estimate your culture’s density of microorganisms with colony counters, or screen and select colonies for desirable clones with automated colony pickers. Additionally, equipment is available to monitor environments for the presence of microbes and identify with microbial identification instruments. Find the best microbiology products in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.ImmunologyImmunological techniques measure and characterize immune responses. Immunology kits and analysis systems often use techniques such as ELISA, radioimmunoassay (RIA) and immunodiffusion assays, Immunohistochemistry, and flow cytometry. Immunologists use equipment such as flow Cytometers, plate readers, plate washers and fluorescent microscopes.Assay DevelopmentThe process of proving an assay to be sensitive with respect to the target is known as assay development. The assay should be able to characterize novel compounds and measure the potency of these compounds against a validated biological target.Therapeutic AntibodiesTherapeutic antibodies are antibodies engineered for use in treating diseases. They can be designed to target specific antigens, blocking harmful interactions or modulating immune responses. Therapeutic antibodies are critical in treating conditions like cancer, autoimmune disorders, and infectious diseases. Explore the best therapeutic antibody products in our peer-reviewed product directory; compare options, check reviews, and get pricing directly from manufacturers.ELISACoronavirusCoronaviruses are a large family of viruses that can cause illnesses ranging from the common cold to more severe diseases like COVID-19. Research into the biology, transmission, and treatment of coronaviruses has become a global priority, particularly since the emergence of SARS-CoV-2. Understanding the virus�s structure and behavior is essential for developing vaccines, diagnostics, and antiviral treatments. Explore our peer-reviewed product directory to discover the latest research tools, diagnostic tests, vaccines, and treatments for coronavirus, compare products, read reviews, and receive pricing directly from manufacturers.Covid-19COVID-19, caused by the SARS-CoV-2 virus, has led to a global health crisis with profound impacts on societies and economies. Research into diagnostics, vaccines, treatments, and understanding viral mechanisms continues to evolve. The pandemic has accelerated innovations in healthcare and biopharmaceuticals, including novel vaccine platforms and rapid testing technologies. Browse our peer-reviewed product directory to find top COVID-19 testing kits, research tools, vaccines, and treatments, compare products, read reviews, and receive direct pricing from manufacturers.

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Euroimmun launches SARS-CoV-2 NeutraLISA Assay to determine the neutralizing capacity of antibodies