By using huge primer PCR Cys86 (TGC) of PoIFN-alpha was mutated to Tyr(TAC), and the first code TGT was simultaneously changed to TGC, which is a bias code of E. coli. The expression plasmid pGEX-IFN was constructed successfully. Recombinant porcine IFN alpha, which is expressed as inclusion bodies, was about 20% of the total proteins. The inclusion body was dissolved in 8 mol/L urea and subsequently renatured by dilution in refolding buffer. In order to obtain pure protein, the renatured IFN alpha was purified by FPLC, and the cytokine activity (5200 IU/mg) was verified by inhibiting the cytopathic effect.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Immunogenicity of the CoronaVac vaccine in children: a real-world study.
Front Immunol
December 2024
Grupo Inmunovirología, Facultad de Medicina, Universidad de Antioquia UdeA, Medellín, Colombia.
Background: Despite its proven effectiveness and safety, there are limited real-world data on CoronaVac's immunogenicity in children, especially in lower-income countries, particularly for SARS-CoV-2 variants. We present a real-world study evaluating CoronaVac's immunogenicity in Colombian children stratified by previous exposure to this virus.
Methods: 89 children aged 3-11 years were enrolled (50 Non-Exposed and 39 Exposed).
The attenuated Pseudorabies virus vaccine Bartha K61 induces a weak cellular immunity: implications for the development of PRV-vectored vaccines.
Front Immunol
December 2024
MOA Key Laboratory of Animal Virology, Zhejiang University Center for Veterinary Sciences, Hangzhou, China.
Pseudorabies virus (PRV), causing Aujeszky's disease in swine, has important economic impact on the pig industry in China and even poses a threat to public health. Although this disease has been controlled by vaccination with PRV live attenuated vaccines (LAVs), the potency of PRV LAVs in inducing cellular immunity has not been well characterized. In this study, using PRV Bartha K61 strain (BK61), the most-used PRV LAVs, as a model, we re-examined the cellular immune response elicited by the BK61 in mice and pigs by multicolor flow cytometry.
View Article and Find Full Text PDFThe identification of a SARs-CoV2 S2 protein derived peptide with super-antigen-like stimulatory properties on T-cells.
Commun Biol
January 2025
Department of Medicine, Universite de Montreal, Montreal, QC, Canada.
Severe COVID-19 can trigger a cytokine storm, leading to acute respiratory distress syndrome (ARDS) with similarities to superantigen-induced toxic shock syndrome. An outstanding question is whether SARS-CoV-2 protein sequences can directly induce inflammatory responses. In this study, we identify a region in the SARS-CoV-2 S2 spike protein with sequence homology to bacterial super-antigens (termed P3).
View Article and Find Full Text PDFAdditional benefits of combined ceftriaxone and adipose-derived mesenchymal stem cells on revamping the outcomes in rodent after acute spinal infection.
J Mol Histol
January 2025
Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, 123 Dapi Rd. Niaosung Dist, Kaohsiung City, 83301, Taiwan.
This study tested whether combined ceftriaxone and adipose-derived mesenchymal stem cells (ADMSCs) would defend the spinal cord against acute spinal infection (ASI) in rodent. Adult-Male-SD rats were grouped into groups 1 (SC)/2 (ASI)/3 (ASI + ceftriaxone from days 2 to 28 after ASI induction)/4 (ASI + allogenic ADMSCs from day 2 for a total of 3 doses/3 consecutive intervals by intravenous injection)/5 (ASI + combined ceftriaxone and ADMSC) and spinal cord tissues were harvested by day 28. Circulatory levels of TNF-α/IL-6 at days 7 and 28, and these two parameters in spinal fluid at day 28 were lowest in group 1, highest in group 2, significantly lower in group 5 than in groups 3/4, and significantly lower in group 3 than in group 4 (all p < 0.
View Article and Find Full Text PDFIFN-α neutralizing antibodies distinguish LADA from early-onset type 1 diabetes.
J Clin Endocrinol Metab
January 2025
Department of Experimental Medicine, Sapienza University of Rome, Italy.
Context: Autoantibodies against IFN-α (AAb-IFN-α) might be associated with the less aggressive autoimmunity in latent autoimmune diabetes in adults (LADA) compared to early-onset type 1 diabetes (T1D).
Objective: To investigate the presence and clinical relevance of the positivity to AAb-IFN-α in people with LADA compared to T1D.
Research Design And Methods: Serum levels of AAb against IFN-α isoforms were measured using a cell-based approach in 41 subjects with LADA and in 90 subjects with T1D.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!