scholarly journals Higher expression of monocyte chemotactic protein 1 in mild COVID-19 patients might be correlated with inhibition of Type I IFN signaling

2021 ◽  
Vol 18 (1) ◽  
Author(s):  
Xueyan Xi ◽  
Yang Guo ◽  
Min Zhu ◽  
Yuhui Wei ◽  
Gang Li ◽  
...  
Keyword(s):  
Chemokine Receptors ◽  
Serum Levels ◽  
Significant Negative Correlation ◽  
Enzyme Linked Immunosorbent Assay ◽  
Type I ◽  
Monocyte Chemotactic Protein ◽  
Chemotactic Protein ◽  
Polymerase Chain

Abstract Background Chemokine levels in severe coronavirus disease 2019 (COVID-19) patients have been shown to be markedly elevated. But the role of chemokines in mild COVID-19 has not yet been established. According to the epidemiological statistics, most of the COVID-19 cases in Shiyan City, China, have been mild. The purpose of this study was to evaluate the level of chemokines in mild COVID-19 patients and explore the correlation between chemokines and host immune response. Methods In this study, we used an enzyme-linked immunosorbent assay to detect serum levels of chemokines in COVID-19 patients in Shiyan City. Expression of chemokine receptors and of other signaling molecules was measured by real-time polymerase chain reaction. Results We first demonstrated that COVID-19 patients, both sever and mild cases, are characterized by higher level of chemokines. Specifically, monocyte chemotactic protein 1 (MCP-1) is expressed at higher levels both in severe and mild cases of COVID-19. The receptor of MCP-1, C-C chemokine receptor type 2, was expressed at higher levels in mild COVID-19 patients. Finally, we observed a significant negative correlation between expression levels of interferon (IFN) regulatory factor 3 (IRF3) and serum levels of MCP-1 in mild COVID-19 patients. Conclusion Higher expression of MCP-1 in mild COVID-19 patients might be correlated with inhibition of IFN signaling. The finding adds to our understanding of the immunopathological mechanisms of severe acute respiratory syndrome coronavirus 2 infection and provides potential therapeutic targets and strategies.

scholarly journals Higher expression of monocyte chemotactic protein 1 in mild COVID-19 patients might be correlated with inhibition of Type I IFN signaling

2020 ◽  
Author(s):  
Xueyan Xi ◽  
Yang Guo ◽  
Min Zhu ◽  
Yuhui Wei ◽  
Gang Li ◽  
...  
Keyword(s):  
Chemokine Receptors ◽  
Serum Levels ◽  
Significant Negative Correlation ◽  
Enzyme Linked Immunosorbent Assay ◽  
Type I ◽  
Monocyte Chemotactic Protein ◽  
Chemotactic Protein ◽  
Polymerase Chain

Abstract Background: Chemokine levels in severe coronavirus disease 2019 (COVID-19) patients have been shown to be markedly elevated. But the role of chemokines in mild COVID-19 has not yet been established. According to the epidemiological statistics, most of the COVID-19 cases in Shiyan City, China, have been mild. The purpose of this study was to evaluate the level of chemokines in mild COVID-19 patients and explore the correlation between chemokines and host immune response. Methods: In this study, we used an enzyme-linked immunosorbent assay (ELISA) to detect serum levels of chemokines in COVID-19 patients in Shiyan City. Expression of chemokine receptors and of other signaling molecules was measured by real-time polymerase chain reaction (PCR). Results: We first demonstrated that COVID-19 patients, both sever and mild cases, are characterized by higher level of chemokines. Specifically, monocyte chemotactic protein 1 (MCP-1) is expressed at higher levels both in severe and mild cases of COVID-19. The receptor of MCP-1, C-C chemokine receptor type 2 (CCR2), was expressed at higher levels in mild COVID-19 patients. Finally, we observed a significant negative correlation between expression levels of interferon (IFN) regulatory factor 3 (IRF3) and serum levels of MCP-1 in mild COVID-19 patients. Conclusion: Higher expression of MCP-1 in mild COVID-19 patients might be correlated with inhibition of IFN signaling. The finding adds to our understanding of the immunopathological mechanisms of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and provides potential therapeutic targets and strategies.

scholarly journals Higher expression of monocyte chemotactic protein 1 in mild COVID-19 patients might be correlated with inhibition of IFN signaling

2020 ◽  
Author(s):  
Xueyan Xi ◽  
Yang Guo ◽  
Min Zhu ◽  
Yuhui Wei ◽  
Gang Li ◽  
...  
Keyword(s):  
Chemokine Receptors ◽  
Serum Levels ◽  
Significant Negative Correlation ◽  
Enzyme Linked Immunosorbent Assay ◽  
Chain Reaction ◽  
Monocyte Chemotactic Protein ◽  
Chemotactic Protein ◽  
Polymerase Chain

Abstract Background: Chemokine levels in severe coronavirus disease 2019 (COVID-19) patients have been shown to be markedly elevated. But the role of chemokines in mild COVID-19 has not yet been established. According to the epidemiological statistics, most of the COVID-19 cases in Shiyan City, China, have been mild. The purpose of this study was to evaluate the level of chemokines in mild COVID-19 patients and explore the correlation between chemokines and host immune response.Methods: In this study, we used an enzyme-linked immunosorbent assay (ELISA) to detect serum levels of chemokines in COVID-19 patients in Shiyan City. Expression of chemokine receptors and of other signaling molecules was measured by real-time polymerase chain reaction (PCR).Results: We first demonstrated that COVID-19 patients, both sever and mild cases, are characterized by higher level of chemokines. Specifically, monocyte chemotactic protein 1 (MCP-1) is expressed at higher levels both in severe and mild cases of COVID-19. The receptor of MCP-1, C-C chemokine receptor type 2 (CCR2), was expressed at higher levels in mild COVID-19 patients. Finally, we observed a significant negative correlation between expression levels of interferon (IFN) regulatory factor 3 (IRF3) and serum levels of MCP-1 in mild COVID-19 patients.Conclusion: Higher expression of MCP-1 in mild COVID-19 patients might be correlated with inhibition of IFN signaling. The finding adds to our understanding of the immunopathological mechanisms of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and provides potential therapeutic targets and strategies.

scholarly journals AB0070 ROLE OF VASPIN IN ATHEROSCLEROTIC DISEASE AND CARDIOVASCULAR RISK IN AXIAL SPONDYLOARTHRITIS

2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 1065.2-1066
Author(s):  
J. Rueda-Gotor ◽  
R. López-Mejías ◽  
S. Remuzgo-Martínez ◽  
V. Pulito Cueto ◽  
A. Corrales ◽  
...  
Keyword(s):  
Axial Spondyloarthritis ◽  
Subclinical Atherosclerosis ◽  
Serum Levels ◽  
Minor Allele ◽  
Atherosclerotic Disease ◽  
Enzyme Linked Immunosorbent Assay ◽  
Type I ◽  
Research Support ◽  
Cv Disease

Background:Vaspin is a novel anti-inflammatory adipokine associated with cardiovascular (CV) disease and inflammation in chronic inflammatory conditions different from axial spondyloarthritis (axSpA).1 Given the high incidence of CV disease (mainly due to accelerated atherosclerosis) exhibited by axSpA patients,2 we wondered if vaspin could also be a key molecule in this process. However, data on the role of vaspin regarding atherosclerotic disease in the context of axSpA is scarce.3Objectives:To evaluate the implication of vaspin, at the genetic and serological level, in subclinical atherosclerosis and CV risk in axSpA.Methods:510 patients who fulfilled the ASAS criteria for axSpA4 were included in this study. Carotid ultrasound (US) was performed to evaluate the presence of subclinical atherosclerosis. Three vaspin gene variants (rs2236242 T/A, rs7159023 G/A and rs35262691 T/C) were genotyped by TaqMan probes. Serum vaspin levels were assessed by Enzyme-Linked ImmunoSorbent Assay. Analysis was performed using a statistical software.Results:Serum vaspin levels were significantly higher in female patients than in males and also in obese patients when compared to those with normal weight (p<0.05). At the genetic level, we disclosed that the minor allele of rs2236242 (A) was associated with lower serum vaspin levels in axSpA, while the rs7159023 minor allele (A) was linked to higher serum levels (p<0.05). When the three polymorphisms assessed were combined conforming haplotypes, we disclosed that the TGC haplotype related to high serum levels of vaspin (p=0.01). However, no statistically significant association was observed between vaspin and markers of subclinical atherosclerosis, both at the genetic and serological level.Conclusion:Our results revealed that vaspin is linked to CV risk factors that may influence on the atherosclerotic process in axSpA. Additionally, we disclosed that serum vaspin concentration is genetically modulated in a large cohort of patients with axSpA.References:[1]Adv Exp Med Biol. 2019;1111:159-88.[2]Front Med (Lausanne). 2018;5:62.[3]Braz J Med Biol Res. 2016;49(7):e5231.[4]Ann Rheum Dis. 2009;68(2):ii1-44.Acknowledgements:Personal funds: RL-M: Miguel Servet type I CP16/00033 (ISCIII-ESF); SR-M: RD16/0012/0009 (ISCIII-ERDF); VP-C: PREVAL18/01 (IDIVAL); LL-G: INNVAL20/06 (IDIVAL).Disclosure of Interests:Javier Rueda-Gotor: None declared, Raquel López-Mejías: None declared, Sara Remuzgo-Martínez: None declared, Verónica Pulito Cueto: None declared, Alfonso Corrales: None declared, Leticia Lera-Gómez: None declared, Virginia Portilla: None declared, Iñigo González-Mazón: None declared, Ricardo Blanco Speakers bureau: Abbvie, Pfizer, Roche, Bristol-Myers, Janssen and MSD, Consultant of: Abbvie, Pfizer, Roche, Bristol-Myers, Janssen and MSD, Grant/research support from: Abbvie, MSD and Roche, Rosa Expósito: None declared, Cristina Mata: None declared, Javier Llorca: None declared, Vanessa Hernández-Hernández: None declared, Carlos Rodríguez-Lozano: None declared, Nuria Barbarroja Puerto: None declared, Rafaela Ortega Castro: None declared, Noelia García Castañeda: None declared, Cristina Fernández-Carballido: None declared, Maria Paz Martínez-Vidal: None declared, David Castro-Corredor: None declared, Joaquín Anino-Fernández: None declared, Diana Peiteado: None declared, Chamaida Plasencia: None declared, E Galindez: None declared, María L. García Vivar: None declared, Oreste Gualillo: None declared, Juan Carlos Quevedo-Abeledo: None declared, Santos Castañeda: None declared, Iván Ferraz-Amaro: None declared, Miguel A González-Gay Speakers bureau: Pfizer, Abbvie, MSD, Grant/research support from: Pfizer, Abbvie, MSD, Fernanda Genre: None declared

scholarly journals Association between Periodontitis and Severe Asthma: The Role of IgG Anti-Porphyromonas gingivalis Levels

2020 ◽  
pp. 17-27
Author(s):  
Patricia Mares de Miranda ◽  
Mabel Proence Pereira Lopes ◽  
Rebeca Pereira Bulhosa Santos ◽  
Michelle Miranda Lopes Falcão ◽  
Paulo Cirino de Carvalho Filho ◽  
...  
Keyword(s):  
Severe Asthma ◽  
Porphyromonas Gingivalis ◽  
Serum Levels ◽  
Pcr Analysis ◽  
Enzyme Linked Immunosorbent Assay ◽  
Control Group ◽  
Bacterial Dna ◽  
Polymerase Chain ◽  
Control Study

Asthma and periodontitis are both very prevalent worldwide. Although the association between these diseases has been investigated, the biological mechanism underlying this association, especially the role of biological mediators, remains unclear. Thus, the aim of this study was to evaluate serum levels of anti-Porphyromonas gingivalis IgG in subjects with and without severe asthma. A case-control study involving 169 individuals consisted of subjects with severe asthma in addition to others without asthma (control group). An indirect enzyme linked immunosorbent assay (ELISA) was performed to measure serum levels of IgG specific to Porphyromonas gingivalis. Bacterial DNA was extracted from subgingival biofilm samples and real-time polymerase chain reaction (RT-PCR) analysis was performed to quantify Porphyromonas gingivalis levels.

scholarly journals Higher expression of monocyte chemotactic protein 1 in mild COVID-19 patients may be correlated with the inhibition of IFN signaling

2020 ◽  
Author(s):  
Xueyan Xi ◽  
Yang Guo ◽  
Min Zhu ◽  
Yuhui Wei ◽  
Gang Li ◽  
...  
Keyword(s):  
Immune Response ◽  
Real Time ◽  
Real Time Pcr ◽  
Chemokine Receptors ◽  
Interferon Regulatory Factor ◽  
Signal Molecules ◽  
Regulatory Factor ◽  
Monocyte Chemotactic Protein ◽  
Chemotactic Protein

Abstract Background: The level of chemokines was markedly elevated in severe COVID-19 patients. But the role of chemokines in mild COVID-19 has not yet been established. However, most of the COVID-19 patients in Shiyan City, China, had mild cases. The purpose of this study is to evaluate the level of chemokines in mild COVID-19 patients and explore the correlation between chemokines and host immune response.Methods: In this study, the level of chemokines in the serum for COVID-19 patients in Shiyan City was detected by ELISA. The expression of chemokine receptors and other signal molecules was measured by real-time PCR.Results: We first demonstrated that COVID-19 patients are characterized by higher level of chemokines. Meanwhile, monocyte chemotactic protein 1 (MCP-1) has also shown higher expression in patients with mild cases of COVID-19. The receptor of MCP-1, CCR2, was also found to be expressed at higher level in the same mild COVID-19 patients. Finally, we found the downregulation of interferon regulatory factor 3 (IRF3) was significantly negative correlated with the concentration of MCP-1 in mild COVID-19 patients.Conclusion: Higher expression of MCP-1 in mild COVID-19 patients may be correlated with the inhibition of IFN signaling. The finding adds our understanding to the immune-pathologic mechanisms of SARS-CoV-2 infection, and provides potential therapeutic targets and strategies.

Low Serum Levels of Fibroblast Growth Factor 2 in Gunn Rats: A Hyperbilirubinemia Animal Model of Schizophrenic Symptoms

2020 ◽  
Vol 19 (7) ◽  
pp. 503-508
Author(s):  
Maiko Hayashida ◽  
Sadayuki Hashioka ◽  
Kenji Hayashida ◽  
Shoko Miura ◽  
Keiko Tsuchie ◽  
...  
Keyword(s):  
Animal Model ◽  
Growth Factor ◽  
Fibroblast Growth Factor ◽  
Wistar Rats ◽  
Serum Levels ◽  
Significant Negative Correlation ◽  
Enzyme Linked Immunosorbent Assay ◽  
Normal Strain ◽  
Fibroblast Growth ◽  
Gunn Rats

Background: Fibroblast growth factor (FGF) 2 (also referred to as basic FGF) is a multifunctional growth factor that plays a pivotal role in the pro-survival, pro-migration and pro-differentiation of neurons. Method: Because alterations in FGF2 levels are suggested to contribute to the pathogenesis schizophrenia, we investigated serum levels of FGF2 in the Gunn rat, a hyperbilirubinemia animal model of schizophrenic symptoms. Results: The enzyme-linked immunosorbent assay showed that the serum levels of FGF2 in Gunn rats were 5.09 ± 0.236 pg/mL, while those in the normal strain Wistar rats were 11.90 ± 2.142 pg/mL. The serum FGF2 levels in Gunn rats were significantly lower than those in Wistar rats. We also measured serum levels of unconjugated bilirubin (UCB) and found a significant negative correlation between UCB and FGF2 at serum levels in all the rats studied. Conclusion: Since it is known that FGF2 regulates dopaminergic neurons and have anti-neuroinflammatory effects, our finding suggests that low FGF2 levels may contribute to the pathogenesis of schizophrenia, in which disbalanced dopamin-ergic signaling and neuroinflammation are supposed to play certain roles.

GDF-15 and neutrophils in patients with heart failure and type 2 diabetes mellitus

2021 ◽  
Vol 28 (Supplement_1) ◽  
Author(s):  
AA Garganeeva ◽  
EA Kuzheleva ◽  
VA Fedyunina ◽  
VA Aleksandrenko
Keyword(s):  
Diabetes Mellitus ◽  
Heart Failure ◽  
Type 2 Diabetes ◽  
Type 2 Diabetes Mellitus ◽  
Inflammatory Marker ◽  
Study Groups ◽  
Significant Negative Correlation ◽  
Enzyme Linked Immunosorbent Assay ◽  
National Budget

Abstract Funding Acknowledgements Type of funding sources: Public grant(s) – National budget only. Main funding source(s): This study was funded by (subject of fundamental scientific research on a state assignment № АААА-А17-117052310073-6 от 23.05.2017 Introduction. Growth differentiation factor-15 (GDF-15) is a biomarker associated with inflammatory processes in the pathogenesis of chronic heart failure (CHF) which expresses in cardiomyocytes under pathological conditions. The relationship between the level of GDF-15 and type 2 diabetes mellitus (T2DM) has also been proven. It is necessary to study GDF-15 in patients with CHF and T2DM. Aim To investigate the association between serum GDF-15 levels in patients with CHF of ischemic etiology and the concentration of the main leukocyte fractions depending on presence or absence of T2DM. Material and methods. The study included 42 patients. The patients were divided into 2 groups. The first group consisted of patients with CHF and T2DM (n = 14). The second group  consisted of patients with CHF without T2DM (n = 28). Determination of GDF-15 concentration was carried out by enzyme-linked immunosorbent assay (BioVendor, Czech Republic). The absolute concentration of lymphocytes, neutrophils, as well as the ratio of neutrophils to lymphocytes in the blood were analyzed. Statistical analysis was performed using the Statistica software (v.10.0). The data were described as a median and interquartile range, the Mann-Whitney test was used to compare them. The correlation analysis was tested using the Spearman"s correlation coefficient. Results and discussion. The average level of the GDF-15 in the study groups was comparable: 2389 (2104; 3375) pg/ml and 2309 (2047; 3014) pg/ml in the first and second groups, respectively (p = 0.6). In the general cohort of CHF patients, the GDF-15 concentration was not correlate with the lymphocytes concentration (r = -0.001, p = 0.95), neutrophils (r = -0.14, p = 0.4) and the ratio of neutrophils to lymphocytes (r = -0.12, p = 0.25). At the same time, in the group of patients with T2DM, a significant negative correlation was revealed between the concentration of GDF-15 in the serum and the concentration of neutrophils (r = -0.6, p = 0.022). While both other analyzed parameters did not demonstrate significant correlations with GDF-15 (p &gt; 0.05). In the group of CHF patients without T2DM, no correlations were found between GDF-15 and the studied parameters, including neutrophils (r = 0.02, p = 0.3). Along with this the median of the neutrophils concentration did not vary among groups (3.5 (2.3; 5.3) vs 3.2 (2.7; 4.1) * 109 / l; p = 0.8). Conclusion The concentration of the inflammatory marker GDF-15 in the blood of patients with CHF in combination with T2DM correlates with the concentration of neutrophils. In the absence of T2DM, no significant correlations were found between GDF-15 and the main leukocyte fractions. The results obtained indicate the possible prospect of using the GDF-15 biomarker in a cohort of patients with CHF in combination with T2DM.

scholarly journals Serum YKL-40 Levels in Patients with Gastric Cancer

2011 ◽  
Vol 3 ◽  
pp. BIC.S7154 ◽  
Author(s):  
Veyis Itik ◽  
Ozgur Kemik ◽  
Ahu Kemik ◽  
A. Cumhur Dulger ◽  
Aziz Sümer ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Serum Levels ◽  
Enzyme Linked Immunosorbent Assay ◽  
Colorectal Cancers ◽  
Healthy Population ◽  
Serum Samples ◽  
Future Studies ◽  
Male Patients

Aims and background YKL-40 is secreted by several types of tumors. Increased serum YKL-40 levels have been reported in prostate, glioblastoma, breast and colorectal cancers. Determination of YKL-40 levels may serve as a valuable biomarker for the diagnosis and treatment of gastric cancer. The purpose of this study was to determine the serum YKL-40 levels expressed in gastric carcinomas. Methods Between 2009 and 2011, we retrospectively reviewed 100 patients with gastric cancer and compared their serum samples to 75 healthy volunteers. YKL-40 levels were determined by an enzyme-linked immunosorbent assay (ELISA). Results We found significantly higher serum levels of YKL-40 in patients with gastric cancer compared to the healthy population ( P < 0.0001). We also found significant differences in serum YKL-40 levels between female and male patients with gastric cancer ( P < 0.01). Conclusions YKL-40 is over-expressed in gastric cancer, suggesting a more aggressive phenotype. YKL-40 may be a useful serum biomarker for gastric cancer identification, and future studies should focus on the role of YKL-40 in the tumorigenesis of gastric cancer and responsiveness toward treatment.

scholarly journals The association between Interleukin-6 rs1800795/rs1800797 polymorphisms and risk of rotator cuff tear in a Chinese population

2020 ◽  
Vol 40 (4) ◽  
Author(s):  
Jin Li ◽  
Lifeng Jiang ◽  
Xindie Zhou ◽  
Lidong Wu ◽  
Dong Li ◽  
...  
Keyword(s):  
Rotator Cuff ◽  
Rotator Cuff Tear ◽  
Constant Score ◽  
Enzyme Linked Immunosorbent Assay ◽  
Mutant Genotype ◽  
Cuff Tear ◽  
Increased Risk ◽  
Polymerase Chain ◽  
Tear Size

Abstract Expression of proinflammatory cytokines, such as interleukin (IL)-6 (IL-6) and metalloproteases, are elevated in patients with rotator cuff tear (RCT). In order to investigate the role of IL-6 gene polymorphisms on RCT risk, we genotyped two SNPs on IL-6 gene (rs1800795 and rs1800797) in 138 RCT patients and 137 healthy controls using polymerase chain reaction (PCR) and Sanger sequencing. The IL-6 expression in shoulder joint synovial fluid was determined by using enzyme-linked immunosorbent assay (ELISA) method. The constant score and visual analog scale (VAS) were used to evaluate the clinical outcome of two s (surgicsal vs. conservative) for RCT patients. For rs1800795, individuals with the GG genotype or G allele had significantly higher risk of RCT. Elevated risk of tear size was associated with the GG genotype of the rs1800795 polymorphism. The IL-6 rs1800797 polymorphism was also associated with an increased risk of RCT, especially among female, drinkers, and individuals with B(MI) &lt; 25 kg/m2. The elevated levels of IL-6 gene were observed among the mutant genotype of rs1800795/rs1800797 polymorphism. Surgical group is significantly better than conservative treatment from the perspective of constant score and VAS. Furthermore, CG genotype of rs1800795 polymorphism increased the constant score at 6 months in comparison with CC genotype. In conclusion, our study supports a role of IL-6 rs1800795/rs1800797 polymorphisms on increased RCT risk. The RCT patients with CG genotype of rs1800795 polymorphism have more obvious surgical treatment effects by influencing the IL-6 expression.

Porcine 2′,5′-oligoadenylate synthetase-like protein inhibits replication of porcine reproductive and respiratory syndrome virus

2019 ◽  
Author(s):  
huawei li ◽  
ruining wang ◽  
wenjia wang ◽  
yinfeng kang ◽  
mengmeng zhao
Keyword(s):  
Alveolar Macrophages ◽  
Respiratory Syndrome Virus ◽  
Type I ◽  
Oligoadenylate Synthetase ◽  
Swine Industry ◽  
Exogenous Expression ◽  
Polymerase Chain ◽  
Interfering Rna ◽  
Inducible Gene

Abstract Background : Porcine reproductive and respiratory syndrome virus (PRRSV) is a serious pathogen that causes $664 million losses per year to the swine industry. There are few useful vaccines that can provide protection against PRRSV infection. 2′, 5′-oligoadenylate synthetase-like protein (OASL) has antiviral activity, this has not been shown for PRRSV and the mechanism is unknown. Methods : Expression of OASL in porcine alveolar macrophages induced by interferon (IFN)-b stimulation and PRRSV infection was examined by real-time polymerase chain reaction. Exogenous expression and knockdown of OASL were used to determine the role of OASL in the PRRSV replication cycle. The type I IFN signaling pathway was evaluated after OASL overexpression. Results : In this study, we found that the expression of OASL in porcine alveolar macrophages was significantly increased by IFN-b stimulation and PRRSV infection. Porcine-OASL-specific small interfering RNA (siRNA) promoted PRRSV replication, whereas exogenous expression of porcine OASL inhibited replication of the virus. The anti-PRRSV activity of porcine OASL was lost after knockdown of retinoic acid-inducible gene I ( DDX58 , also known as RIG-I ). Conclusions : Porcine OASL suppresses PRRSV replication.

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