In this study, the immunoadjuvant effects of recombinant porcine interferon alpha (rPoIFN) on the killed virus vaccine (KV) of porcine reproductive and respiratory syndrome virus (PRRSV) in pigs were investigated. The experimental pigs were divided into six groups, including normal control group, rPoIFN control group, PRRSV KV control group, KV+40,000 U rPoIFN immunization group, KV+400,000 U rPoIFN immunization group, and KV+4,000,000 U rPoIFN immunization group. The experimental pigs were boosted immunized on the 28th day after the initial immunization, and the heparinized blood and serum samples were collected at different time points of these two immunizations to detect and evaluate the immune responses of pigs after immunization by ELISA assay, neutralization assay, flow cytometry, and so on. The results showed that the proportion of the levels of PRRSV-specific antibodies, neutralizing antibodies, stimulation index, IL-4, IFN-γ, and lymphocytes within the groups immunized with KV+rPoIFN were significantly higher than that group immunized with KV alone. The humoral and cellular immune responses in pigs were markedly enhanced by rPoIFN after the coadministration with KV vaccine. Therefore, we tentatively think that rPoIFN is a potential immune promoter with prospects for future applications in the pig industry.
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http://dx.doi.org/10.1089/vim.2019.0092 | DOI Listing |
Innate Immun
January 2025
Department of Respiratory and Critical Medicine, the First Affiliated Hospital of Soochow University, Suzhou, China.
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January 2025
School of Basic Medicine, Institute of Brain Science and Disease, Shandong Provincial Key Laboratory of Pathogenesis and Prevention of Brain Diseases, Qingdao University, Qingdao, Shandong, 266071, China. E-mail:
Iron is the most abundant transition metal in the brain and is essential for brain development and neuronal function; however, its abnormal accumulation is also implicated in various neurological disorders. The olfactory bulb (OB), an early target in neurodegenerative diseases, acts as a gateway for environmental toxins and contains diverse neuronal populations with distinct roles. This study explored the cell-specific vulnerability to iron in the OB using a mouse model of intranasal administration of ferric ammonium citrate (FAC).
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January 2025
Fisheries College, Jimei University, Xiamen, Fujian 361021, China. E-mail:
Small RNAs (sRNAs) are a class of molecules capable of perceiving environmental changes and exerting post-transcriptional regulation over target gene expression, thereby influencing bacterial virulence and host immune responses. is a pathogenic bacterium that poses a significant threat to aquatic animal health. However, the regulatory mechanisms of sRNAs in .
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Department of Pediatrics, Division of Pediatric Infectious Diseases, Guerin Children's, Cedars-Sinai Medical Center, Los Angeles, CA.(P.K.J., M.A., M.N.R.).
The intestinal microbiota influences many host biological processes, including metabolism, intestinal barrier functions, and immune responses in the gut and distant organs. Alterations in its composition have been associated with the development of inflammatory disorders and cardiovascular diseases, including Kawasaki disease (KD). KD is an acute pediatric vasculitis of unknown etiology and the leading cause of acquired heart disease in children in the United States.
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January 2025
Neuroimmunology Unit, Santa Lucia Foundation IRCCS, Rome, Italy.
Introduction: Acute COVID-19 infection causes significant alterations in the innate and adaptive immune systems. While most individuals recover naturally, some develop long COVID (LC) syndrome, marked by persistent or new symptoms weeks to months after SARS-CoV-2 infection. Despite its prevalence, there are no clinical tests to distinguish LC patients from those fully recovered.
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