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Liu P, Zhang Q, Yang C, Wang X, Li Y, Li J, Yang Q. Feeding with 4,4'-diaponeurosporene-producing Bacillus subtilis enhances the lactogenic immunity of sow. BMC Vet Res 2023; 19:280. [PMID: 38115003 PMCID: PMC10729370 DOI: 10.1186/s12917-023-03846-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 12/05/2023] [Indexed: 12/21/2023] Open
Abstract
Specific antibodies produced sow by oral porcine epidemic diarrhea virus (PEDV) vaccines would transfer to newborn piglets via colostrum, and it is an effective strategy to prevent porcine epidemic diarrhea (PED). However, there is a lag in the development of corresponding vaccines due to the rapid mutation of PEDV, which could increase the difficulty of PED prevention and control in pig farms. Hence, congenital lactogenic immunity was assessed by feeding 4,4'-diaponeurosporene-producing Bacillus subtilis (B.S-Dia) to sow on the 80th day of gestation in order to protect newborn piglets from PEDV infection. Firstly, we found that the quantities of T lymphocytes and monocytes in the blood and colostrum after oral administration of B.S-Dia were significantly increased as observed by flow cytometry, whereas the proliferative activity of T lymphocytes in colostrum was also markedly increased. Furthermore, enzyme-linked immunosorbent assay (ELISA) results revealed that levels of TGF (Transforming growth factor) -β, Interleukin (IL) -6, lysozyme and lactoferrin were significantly increased. Finally, it was found in the piglets' challenge protection test that offspring pigs of the sows feeding B.S-Dia during pregnancy did not develop diarrhea symptoms and intestinal pathological changes at 48 h after infection with PEDV, and PEDV load in the jejunum and ileum was significantly reduced, but offspring pigs of the sows taking orally PBS during pregnancy developed pronounced diarrhea symptoms and extensive PEDV colonization was noted both in the jejunum and ileum. In summary, sow by oral administration of B.S-Dia substantially increased congenital lactogenic immunity, thereby preventing newborn piglets from being infected with PEDV.
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Affiliation(s)
- Peng Liu
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Jiangsu, 210095, PR China
| | - Qi Zhang
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Jiangsu, 210095, PR China
| | - Chengjie Yang
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Jiangsu, 210095, PR China
| | - Xiuyu Wang
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Jiangsu, 210095, PR China
| | - Yuchen Li
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Jiangsu, 210095, PR China
| | - Jianda Li
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Jiangsu, 210095, PR China
| | - Qian Yang
- MOE Joint International Research Laboratory of Animal Health and Food Safety, College of Veterinary Medicine, Nanjing Agricultural University, Jiangsu, 210095, PR China.
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Wu Y, Zheng J, Yan Y, Liu J, Zhou Y. Gelsolin Can Be a Prognostic Biomarker and Correlated with Immune Infiltrates in Gastric Cancer. Int J Gen Med 2022; 15:927-936. [PMID: 35115818 PMCID: PMC8803610 DOI: 10.2147/ijgm.s339940] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 12/24/2021] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Gelsolin (GSN) is the most widely expressed actin-severing protein in humans, which could regulate cell morphology, differentiation, movement and apoptosis. This study aims to explore the GSN as a prognostic biomarker of stomach adenocarcinoma (STAD). METHODS In this study, we used several online databases to comprehensively analyze the role of GSN in STAD. Oncomine and HPA databases were used to explore the GSN expression in various cancer, especially in gastric cancer. Then, UALCAN database was used to evaluate the relationship between GSN expression and promoter methylation in clinical characteristics. Finally, we used TIMER to analyze the correlation between GSN expression and immune infiltrates in gastric cancer. RESULTS GSN was down-regulated in gastric cancer, and decreased expression of GSN was related to worse survival. The GSN expression was significantly related to tumor purity in STAD and significantly correlated with infiltrating level of various immune cells, especially the dendritic cells. CONCLUSION Our study proposes that GSN can be served as the biomarker of disease and neoantigen for STAD treatment, which can improve the deficiency of disease-specific targeted therapies currently exist.
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Affiliation(s)
- Yingmei Wu
- Guangzhou University of Chinese Medicine, Guangzhou, 510000, People’s Republic of China
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, 510000, People’s Republic of China
| | - Junhui Zheng
- Guangzhou University of Chinese Medicine, Guangzhou, 510000, People’s Republic of China
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, 510000, People’s Republic of China
| | - Yanhua Yan
- Guangzhou University of Chinese Medicine, Guangzhou, 510000, People’s Republic of China
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou, 510000, People’s Republic of China
| | - Jiduo Liu
- Department of Clinical Laboratory, The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, 510000, People’s Republic of China
| | - Yingchun Zhou
- Department of Clinical Laboratory, The First Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, 510000, People’s Republic of China
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Xu Z, Gong L, Peng P, Liu Y, Xue C, Cao Y. Porcine enteric alphacoronavirus Inhibits IFN-α, IFN-β, OAS, Mx1, and PKR mRNA Expression in Infected Peyer's Patches in vivo. Front Vet Sci 2020; 7:449. [PMID: 32719818 PMCID: PMC7347908 DOI: 10.3389/fvets.2020.00449] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 06/19/2020] [Indexed: 11/26/2022] Open
Abstract
Porcine enteric alphacoronavirus (PEAV) is a newly identified swine enteropathogenic coronavirus that causes watery diarrhea in neonatal piglets. The pathogenesis and host immune responses of PEAV infection are not fully characterized. The reason lies in the stomach environment, which would degrade cell-cultured live viruses via oral infection, making it difficult to establish an effective infection model to study the pathogenesis and host immune responses in pigs with a mature immune system. To solve this problem, in this study, coated PEAV-loaded microspheres were developed by centrifugal granulation-fluidized bed coating and demonstrated as an effective oral delivery system/animal infection model to protect PEAV virion against the complex gastrointestinal environment in vitro and to cause infection in weaned piglets in vivo. Weaned piglets orally inoculated with coated PEAV-loaded microspheres developed diarrhea and virus RNA was detected in rectal swabs from one to seven days post inoculation. In addition, microscopic lesions in the small intestine were observed, and viral antigens were also detected in the small intestines with PEAV immunohistochemical staining. Importantly, PEAV significantly inhibited mRNA expression of IFN-α, IFN-β, OAS, Mx1, and PKR, the genes involved in modulation of the host immune responses, in infected Peyer's patches, indicating that PEAV can overcome the antiviral response to cause damage when infection occurs. Collectively, our research successfully established a PEAV animal infection model in weaned piglets and suggested that the observed gene expression profile might help explain immunological changes associated with PEAV infection.
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Affiliation(s)
- Zhichao Xu
- State Key Laboratory of Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, China
| | - Lang Gong
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Peng Peng
- State Key Laboratory of Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, China
| | - Yufang Liu
- State Key Laboratory of Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, China
| | - Chunyi Xue
- State Key Laboratory of Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, China
| | - Yongchang Cao
- State Key Laboratory of Biocontrol, School of Life Science, Sun Yat-Sen University, Guangzhou, China
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Liu G, Wang B, Chen Q, Li Y, Li B, Yang N, Yang S, Geng S, Liu G. Interleukin (IL)-21 Promotes the Differentiation of IgA-Producing Plasma Cells in Porcine Peyer's Patches via the JAK-STAT Signaling Pathway. Front Immunol 2020; 11:1303. [PMID: 32655571 PMCID: PMC7324671 DOI: 10.3389/fimmu.2020.01303] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 05/22/2020] [Indexed: 12/28/2022] Open
Abstract
Secretory IgA is critical to prevent the invasion of pathogens via mucosa. However, the key factors and the mechanisms of IgA generation in the porcine gut are not well-understood. In this study, a panel of factors, including BAFF, APRIL, CD40L, TGF-β1, IL-6, IL-10, IL-17A, and IL-21, were employed to stimulate IgM+ B lymphocytes from porcine ileum Peyer's patches. The results showed that IL-21 significantly upregulated IgA production of B cells and facilitated cell proliferation and differentiation of antibody-secreting cells. In addition, three transcripts in porcine IgA class switch recombination (CSR), germ-line transcript α, post-switch transcript α, and circle transcript α, were first amplified by (nest-)PCR and sequenced. All these key indicators of IgA CSR were upregulated by IL-21 treatment. Furthermore, we found that IL-21 predominantly activated JAK1, STAT1, and STAT3 proteins and confirmed that the JAK-STAT signaling pathway was involved in porcine IgA CSR. Thus, IL-21 plays an important role in the proliferation and differentiation of IgA-secreting cells in porcine Peyer's patches through the JAK-STAT signaling pathway. These findings provide insights into the mucosal vaccine design by regulation of IL-21 for the prevention and control of enteric pathogens in the pig industry.
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Affiliation(s)
- Guo Liu
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Bin Wang
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Qingbo Chen
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Yang Li
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Baoyu Li
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Ning Yang
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Shanshan Yang
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Shuxian Geng
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Guangliang Liu
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
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Parra-Sánchez H, Bustamante-Córdova L, Reséndiz M, Mata-Haro V, Pinelli-Saavedra A, Hernández J. Analysis of Swine Conventional Dendritic Cells, DEC205 +CD172a +/-CADM1 +, from Blood and Spleen in Response to PRRSV and PEDV. Viruses 2019; 11:v11111001. [PMID: 31683569 PMCID: PMC6893809 DOI: 10.3390/v11111001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 10/28/2019] [Accepted: 10/30/2019] [Indexed: 12/17/2022] Open
Abstract
Conventional dendritic cells (cDCs) cannot be infected by porcine reproductive and respiratory syndrome virus (PRRSV) but respond to infection via cytokine production, indicating a possible role in initiation/regulation of the immune response against PRRSV. In this work, we evaluated the responses of splenic and blood cDCs, with DEC205+CADM1+CD172a+/− phenotype, as well as those of CD163+ cells against PRRSV and porcine epidemic diarrhea virus (PEDV). Both populations were incubated in the presence of PRRSV or PEDV with and without naïve CD3+ T cells, and cytokine responses were evaluated by qPCR and ELISA. Our results showed that cDCs, but not CD163+ cells, produced IL-12 in response to PRRSV. PEDV did not induce IL-12 production. Cocultures of cDCs and autologous naïve CD3+ cells resulted in decreased IL-12 production and low expression of IFN-γ transcripts in response to PRRSV. Interestingly, cDCs increased the proliferation of naïve T cells in the presence of PRRSV compared with that achieved with monocytes and peripheral blood mononuclear cells (PBMCs). Cocultures of CD163+ cells induced IL-10 and IL-4 expression in the presence of PRRSV and PEDV, respectively. In conclusion, cDCs can selectively produce IL-12 in response to PRRSV but poorly participate in the activation of naïve T cells.
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Affiliation(s)
- Héctor Parra-Sánchez
- Laboratorio de Inmunología, Centro de Investigación en Alimentación y Desarrollo, A.C., Kilómetro 0.6 carretera la Victoria, Hermosillo 83304, Sonora, Mexico.
| | - Lorena Bustamante-Córdova
- Laboratorio de Inmunología, Centro de Investigación en Alimentación y Desarrollo, A.C., Kilómetro 0.6 carretera la Victoria, Hermosillo 83304, Sonora, Mexico.
| | - Mónica Reséndiz
- Laboratorio de Inmunología, Centro de Investigación en Alimentación y Desarrollo, A.C., Kilómetro 0.6 carretera la Victoria, Hermosillo 83304, Sonora, Mexico.
| | - Verónica Mata-Haro
- Laboratorio de Inmunología, Centro de Investigación en Alimentación y Desarrollo, A.C., Kilómetro 0.6 carretera la Victoria, Hermosillo 83304, Sonora, Mexico.
| | - Araceli Pinelli-Saavedra
- Laboratorio de Inmunología, Centro de Investigación en Alimentación y Desarrollo, A.C., Kilómetro 0.6 carretera la Victoria, Hermosillo 83304, Sonora, Mexico.
| | - Jesús Hernández
- Laboratorio de Inmunología, Centro de Investigación en Alimentación y Desarrollo, A.C., Kilómetro 0.6 carretera la Victoria, Hermosillo 83304, Sonora, Mexico.
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Xu Z, Zhong H, Huang S, Zhou Q, Du Y, Chen L, Xue C, Cao Y. Porcine deltacoronavirus induces TLR3, IL-12, IFN-α, IFN-β and PKR mRNA expression in infected Peyer's patches in vivo. Vet Microbiol 2018; 228:226-233. [PMID: 30593372 PMCID: PMC7117130 DOI: 10.1016/j.vetmic.2018.12.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 12/05/2018] [Accepted: 12/11/2018] [Indexed: 12/25/2022]
Abstract
PDCoV infection caused severe diarrhea, virus shedding and intestinal lesion in weaned piglets. PDCoV could induce TLR3 mRNA expression in infected Peyer's patches from weaned piglets. PDCoV obviously induced IL-12, IFN-α, IFN-β, and PKR mRNA expression in infected Peyer's patches from weaned piglets.
Porcine deltacoronavirus (PDCoV) is a newly identified swine enteropathogenic coronavirus that causes watery diarrhea in piglets and results in significant economic losses to the pig industry. Currently there are no effective treatments or vaccines for PDCoV. In particular, the pathogenesis of PDCoV infection is still largely unknown. In this study, we reported that inoculating conventional weaned piglets with 1 × 109 TCID50 of the PDCoV CHN-GD-2016 strain by oral feeding could cause severe diarrhea. Virus RNA was detected in rectal swabs from 1 to 7 days post inoculation. In addition, microscopic lesions in small intestine were observed, and viral antigen also detected in the small intestines with PDCoV immunohistochemical staining. Importantly, PDCoV significantly induced mRNA expression of TLR3, IL-12, IFN-α, IFN-β, and PKR, the genes involved in modulation of the host immune responses, in infected Peyer's patches at 3 d.p.i., indicating that Peyer's patches play an important role in PDCoV immune responses in vivo. Collectively, our findings suggest that the observed gene expression profile might help explain immunological and pathological changes associated with PDCoV infection.
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Affiliation(s)
- Zhichao Xu
- State Key Laboratory of Biocontrol, School of Life Science, Sun Yat-sen University, Guangzhou, 510006, China
| | - Huiling Zhong
- State Key Laboratory of Biocontrol, School of Life Science, Sun Yat-sen University, Guangzhou, 510006, China
| | - Songjian Huang
- State Key Laboratory of Biocontrol, School of Life Science, Sun Yat-sen University, Guangzhou, 510006, China
| | - Qingfeng Zhou
- Wen's Group Academy, Wen's Foodstuffs Group Co, Ltd, Xinxing, Guangdong, 527400, China
| | - Yunping Du
- State Key Laboratory of Biocontrol, School of Life Science, Sun Yat-sen University, Guangzhou, 510006, China; Wen's Group Academy, Wen's Foodstuffs Group Co, Ltd, Xinxing, Guangdong, 527400, China
| | - Li Chen
- State Key Laboratory of Biocontrol, School of Life Science, Sun Yat-sen University, Guangzhou, 510006, China; Wen's Group Academy, Wen's Foodstuffs Group Co, Ltd, Xinxing, Guangdong, 527400, China
| | - Chunyi Xue
- State Key Laboratory of Biocontrol, School of Life Science, Sun Yat-sen University, Guangzhou, 510006, China
| | - Yongchang Cao
- State Key Laboratory of Biocontrol, School of Life Science, Sun Yat-sen University, Guangzhou, 510006, China.
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Correction to: Oral administration of inactivated porcine epidemic diarrhea virus activate DCs in porcine Peyer's patches. BMC Vet Res 2018; 14:303. [PMID: 30285740 PMCID: PMC6171180 DOI: 10.1186/s12917-018-1631-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 09/12/2018] [Indexed: 11/30/2022] Open
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