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Swine IFN alpha 1 Polyclonal Antibody - Biotinylated

PBB0451S-050
$390.00
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Type I interferons comprise a vast and growing group of IFN proteins. Homologous molecules to type I IFNs are found in many species, including all mammals, and some have been identified in birds, reptiles, amphibians and fish species. The mammalian types are designated IFN-alpha, IFN-beta, IFN-kappa, IFN-delta, IFN-epsilon, IFN-tau, IFN-omega, and IFN-zeta (also known as limitin). They are mainly involved in innate immune response against viral infection. Interferon alpha (IFNα) is a key molecule in immune regulation. It is produced by multiple cell types in response to viral infection. Plasmacytoid dendritic cells have a special role in the production of IFNα and are the main sources of serum interferon.

Reactivity - ELISA
Bovine IFN-αA - None
Chicken IFN-α - None
Equine IFN-α1 - Moderate
Swine IFN-α1 - Strong

Swine IFN-α1 ELISA Data
Swine IFN-α1 Standard Curve

Catalog No.:
PBB0451S-050
Quantity:
50 ug
Country of Origin:
USA
Host:
The swine IFN alpha 1 polyclonal antibody was produced in goats
Purification:
Antigen-affinity Purification
Immunogen:
Recombinant Swine IFN alpha 1
Applications:
The swine IFN alpha 1 polyclonal antibody has been qualified for use in ELISA and Western blot applications.

31577832

Evaluation of PRRSv specific, maternally derived and induced immune response in Ingelvac PRRSFLEX EU vaccinated piglets in the presence of maternally transferred immunity.

Kraft C, Hennies R, Dreckmann K, Noguera M, Rathkjen PH, Gassel M, Gereke M.

PLoS One. 2019 Oct 2;14(10):e0223060. doi: 10.1371/journal.pone.0223060. eCollection 2019.

Applications: Measurement of Swine IFN alpha in bronchial alveolar lavage fluid by ELISA

Abstract

In this study, we analyzed PRRS virus (PRRSvspecific lymphocyte function in piglets vaccinated with Ingelvac PRRSFLEX EU® at two and three weeks of age in the presence of homologous maternal immunity. Complete analysis of maternal immunity to PRRSv was evaluated postpartum, as well as passive transfer of antibodies and T cells to the piglet through colostrum intake and before and after challenge with a heterologous PRRSv at ten weeks of age. Maternal-derived antibodies were detected in piglets but declined quickly after weaning. However, vaccinated animals restored PRRSv-specific antibody levels by anamnestic response to vaccination. Cell analysis in colostrum and milk revealed presence of PRRSv-specific immune cells at suckling with higher concentrations found in colostrum than in milk. In addition, colostrum and milk contained PRRSv-specific IgA and IgG that may contribute to protection of newborn piglets. Despite the presence of PRRSv-specific Peripheral Blood Mononuclear cells (PBMCs) in colostrum and milk, no PRRSv-specific cells could be detected from blood of the piglets at one or two weeks of life. Nevertheless, cellular immunity was detectable in pre-challenged piglets up to 7 weeks after vaccination while the non-vaccinated control group showed no interferon (IFN) γ response to PRRSv stimulation. After challenge, all piglets developed a PRRSv-specific IFNγ-response, which was more robust at significantly higher levels in vaccinated animals compared to the primary response to PRRSv in non-vaccinated animals. Cytokine analysis in the lung lumen showed a reduction of pro-inflammatory responses to PRRSv challenge in vaccinated animals, especially reduced interferon (IFN) α levels. In conclusion, vaccination of maternally positive piglets at 2 and 3 weeks of age with Ingelvac PRRSFLEX EU induced a humoral and cellular immune response to PRRSv and provided protection against virulent, heterologous PRRSv challenge.


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