|
1
|
Galluzzo P, Migliore S, Cascio S, Barreca S, Alfano M, Tagliarini A, Candela A, Piraino C, Galuppo L, Condorelli L, Hussein HA, Tittarelli M, Chiarenza G. Diagnostic Findings in a Confirmed Outbreak of Brucella ovis Infection in a Traditional Sheep Farm in Sicily (South-Italy). Pathogens 2021; 10:pathogens10111472. [PMID: 34832627 PMCID: PMC8618822 DOI: 10.3390/pathogens10111472] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 11/05/2021] [Accepted: 11/10/2021] [Indexed: 11/26/2022] Open
Abstract
Aim of this study is to report a laboratory investigation performed following the isolation of Brucella ovis, causing ovine epididymitis, in a traditional sheep farm in Sicily (South Italy). This disease represents a newly emerging risk for Italian livestock and is listed among diseases of EU priority (EU Reg 2016/429). Blood samples from 56 rams and 143 ewes were analyzed by both Enzyme-Linked Immunosorbent Assay (ELISA) and Complement Fixation Test (CFT). Genital swabs from all rams and 15 lactating ewes were collected to perform real-time PCR. Eighteen serologically positive rams were slaughtered and postmortem-inspected. Samples of testicle, epididymis, lymph nodes, and urine were also collected in order to perform microbiological, molecular, and histopathological analysis. Twelve slaughtered rams showed anatomo-pathological lesions. Real-time PCR for B. ovis BOV_A0504 gene was positive for 13 testicles and epididymis and 11 urine while B. ovis was isolated from epididymis and testicles of 7 slaughtered rams. This is the first exhaustive laboratory report of a microbiological, molecular, and serological pattern of the disease in sheep in Italy. Despite the impact on health and animal welfare, the epidemiology of B. ovis infection is still unknown, particularly in our country where the disease is considered endemic.
Collapse
Affiliation(s)
- Paola Galluzzo
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, 90129 Palermo, Italy; (P.G.); (S.B.); (M.A.); (A.T.); (A.C.); (C.P.); (L.G.); (L.C.); (H.A.H.); (G.C.)
- Dipartimento Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche, University of Palermo, 90133 Palermo, Italy
| | - Sergio Migliore
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, 90129 Palermo, Italy; (P.G.); (S.B.); (M.A.); (A.T.); (A.C.); (C.P.); (L.G.); (L.C.); (H.A.H.); (G.C.)
- Correspondence:
| | - Silvana Cascio
- Azienda Sanitaria Provinciale di Trapani, 91100 Trapani, Italy;
| | - Santino Barreca
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, 90129 Palermo, Italy; (P.G.); (S.B.); (M.A.); (A.T.); (A.C.); (C.P.); (L.G.); (L.C.); (H.A.H.); (G.C.)
| | - Marilena Alfano
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, 90129 Palermo, Italy; (P.G.); (S.B.); (M.A.); (A.T.); (A.C.); (C.P.); (L.G.); (L.C.); (H.A.H.); (G.C.)
| | - Antonina Tagliarini
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, 90129 Palermo, Italy; (P.G.); (S.B.); (M.A.); (A.T.); (A.C.); (C.P.); (L.G.); (L.C.); (H.A.H.); (G.C.)
| | - Anna Candela
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, 90129 Palermo, Italy; (P.G.); (S.B.); (M.A.); (A.T.); (A.C.); (C.P.); (L.G.); (L.C.); (H.A.H.); (G.C.)
| | - Chiara Piraino
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, 90129 Palermo, Italy; (P.G.); (S.B.); (M.A.); (A.T.); (A.C.); (C.P.); (L.G.); (L.C.); (H.A.H.); (G.C.)
| | - Lucia Galuppo
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, 90129 Palermo, Italy; (P.G.); (S.B.); (M.A.); (A.T.); (A.C.); (C.P.); (L.G.); (L.C.); (H.A.H.); (G.C.)
| | - Lucia Condorelli
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, 90129 Palermo, Italy; (P.G.); (S.B.); (M.A.); (A.T.); (A.C.); (C.P.); (L.G.); (L.C.); (H.A.H.); (G.C.)
| | - Hany A. Hussein
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, 90129 Palermo, Italy; (P.G.); (S.B.); (M.A.); (A.T.); (A.C.); (C.P.); (L.G.); (L.C.); (H.A.H.); (G.C.)
| | - Manuela Tittarelli
- Istituto Zooprofilattico Sperimentale dell’Abruzzo e del Molise “G. Caporale”, 64100 Teramo, Italy;
| | - Giuseppina Chiarenza
- Istituto Zooprofilattico Sperimentale della Sicilia “A. Mirri”, 90129 Palermo, Italy; (P.G.); (S.B.); (M.A.); (A.T.); (A.C.); (C.P.); (L.G.); (L.C.); (H.A.H.); (G.C.)
| |
Collapse
|
|
2
|
Zhou Z, Gu G, Luo Y, Li W, Li B, Zhao Y, Liu J, Shuai X, Wu L, Chen J, Fan C, Huang Q, Han B, Wen J, Jiao H. Immunological pathways of macrophage response to Brucella ovis infection. Innate Immun 2020; 26:635-648. [PMID: 32970502 PMCID: PMC7556187 DOI: 10.1177/1753425920958179] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
As the molecular mechanisms of Brucella ovis pathogenicity are not completely clear, we have applied a transcriptome approach to identify the differentially expressed genes (DEGs) in RAW264.7 macrophage infected with B. ovis. The DEGs related to immune pathway were identified by Kyoto Encyclopedia of Genes and Genomes (KEGG) and Gene Ontology (GO) functional enrichment analysis. Quantitative real-time PCR (qRT-PCR) was performed to validate the transcriptome sequencing data. In total, we identified 337 up-regulated and 264 down-regulated DEGs in B. ovis-infected group versus mock group. Top 20 pathways were enriched by KEGG analysis and 20 GO by functional enrichment analysis in DEGs involved in the molecular function, cellular component, and biological process and so on, which revealed multiple immunological pathways in RAW264.7 macrophage cells in response to B. ovis infection, including inflammatory response, immune system process, immune response, cytokine activity, chemotaxis, chemokine-mediated signaling pathway, chemokine activity, and CCR chemokine receptor binding. qRT-PCR results showed Ccl2 (ENSMUST00000000193), Ccl2 (ENSMUST00000124479), Ccl3 (ENSMUST00000001008), Hmox1 (ENSMUST00000005548), Hmox1 (ENSMUST00000159631), Cxcl2 (ENSMUST00000075433), Cxcl2 (ENSMUST00000200681), Cxcl2 (ENSMUST00000200919), and Cxcl2 (ENSMUST00000202317). Our findings firstly elucidate the pathways involved in B. ovis-induced host immune response, which may lay the foundation for revealing the bacteria–host interaction and demonstrating the pathogenic mechanism of B. ovis.
Collapse
Affiliation(s)
- Zhixiong Zhou
- College of Veterinary Medicine, Southwest University, Chongqing, China
| | - Guojing Gu
- College of Veterinary Medicine, Southwest University, Chongqing, China
| | - Yichen Luo
- Immunology Research Center, Medical Research Institute, Southwest University, Chongqing, China.,College of Veterinary Medicine, Southwest University, Chongqing, China.,Veterinary Scientific Engineering Research Center, Chongqing, China
| | - Wenjie Li
- College of Veterinary Medicine, Southwest University, Chongqing, China
| | - Bowen Li
- College of Veterinary Medicine, Southwest University, Chongqing, China
| | - Yu Zhao
- College of Veterinary Medicine, Southwest University, Chongqing, China
| | - Juan Liu
- Immunology Research Center, Medical Research Institute, Southwest University, Chongqing, China.,College of Veterinary Medicine, Southwest University, Chongqing, China.,Veterinary Scientific Engineering Research Center, Chongqing, China
| | - Xuehong Shuai
- Immunology Research Center, Medical Research Institute, Southwest University, Chongqing, China.,College of Veterinary Medicine, Southwest University, Chongqing, China.,Veterinary Scientific Engineering Research Center, Chongqing, China
| | - Li Wu
- College of Veterinary Medicine, Southwest University, Chongqing, China.,Veterinary Scientific Engineering Research Center, Chongqing, China
| | - Jixuan Chen
- College of Veterinary Medicine, Southwest University, Chongqing, China.,Veterinary Scientific Engineering Research Center, Chongqing, China
| | - Cailiang Fan
- College of Veterinary Medicine, Southwest University, Chongqing, China.,Animal Disease Prevention and Control Center of Rongchang, Chongqing, China
| | - Qingzhou Huang
- College of Veterinary Medicine, Southwest University, Chongqing, China.,Veterinary Scientific Engineering Research Center, Chongqing, China
| | - Baoru Han
- College of Medical Informatics, Chongqing Medical University, Chongqing, China
| | - Jianjun Wen
- Department of Microbiology and Immunology, University of Texas Medical Branch at Galveston, Galveston, USA
| | - Hanwei Jiao
- Immunology Research Center, Medical Research Institute, Southwest University, Chongqing, China.,College of Veterinary Medicine, Southwest University, Chongqing, China.,Veterinary Scientific Engineering Research Center, Chongqing, China
| |
Collapse
|