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Chen Y, Li X, Liu Z, Hu M, Ma J, Luo Y, Zhang Q, Li L, Zhao X, Zhao M, Liu W, Liu Y. Genomic analysis and experimental pathogenic characterization of Riemerella anatipestifer isolates from chickens in China. Poult Sci 2024; 103:103497. [PMID: 38346372 PMCID: PMC10867588 DOI: 10.1016/j.psj.2024.103497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 01/15/2024] [Accepted: 01/20/2024] [Indexed: 02/18/2024] Open
Abstract
Waterfowl have a high likelihood of being infected with Riemerella anatipestifer. Although the pathogen is found in domestic ducks, turkeys, geese, and wild birds, there is little information available about the consequences of infection during egg laying and hatching in chickens. Here, we present the first report of a novel sequence type of R. anatipestifer S63 isolated from chickens in China. On the basis of pan-genome analysis, we showed S63's genome occupies a distinct branch with other R. anatipestifer isolates from other hosts. Galleria mellonella larval tests indicated that S63 is less virulent than R. anatipestifer Ra36 isolated from ducks. Ducks and hens are susceptible to S63 infection. There is no mortality rate for chickens or ducks, but adult chickens experience neurological symptoms that reduce egg production and hatching rates. In chickens, S63 might be passed vertically from parents to offspring, resulting in "jelly-like" lifeless embryos. Using quantitative PCR, S63 was detected in the brain, liver, reproductive organs, and embryos. As far as we know, this is the first report of R. anatipestifer in hens, a disease that can reduce egg productivity, lower hatching rates, and produce jelly-like lifeless embryos, and the first report to raise the possibility that hens can be infected by roosters via semen.
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Affiliation(s)
- Yibao Chen
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, 23788 P. R. China
| | - Xiaojing Li
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, China
| | - Zhengjie Liu
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, 23788 P. R. China
| | - Ming Hu
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, 23788 P. R. China
| | - Jinxiang Ma
- Haiyang Dingli Breeding Chicken Co., Ltd, Yantai, China
| | - Yanbo Luo
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, 23788 P. R. China
| | - Qing Zhang
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, 23788 P. R. China
| | - Lulu Li
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, 23788 P. R. China
| | - Xiaonan Zhao
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, 23788 P. R. China
| | - Min Zhao
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, 23788 P. R. China
| | - Wenhua Liu
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, China
| | - Yuqing Liu
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, 23788 P. R. China.
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Zhang B, Liu J, Li H, Huang B, Zhang B, Song B, Bao C, Liu Y, Wang Z. Integrated multi-omics identified the novel intratumor microbiome-derived subtypes and signature to predict the outcome, tumor microenvironment heterogeneity, and immunotherapy response for pancreatic cancer patients. Front Pharmacol 2023; 14:1244752. [PMID: 37745080 PMCID: PMC10512958 DOI: 10.3389/fphar.2023.1244752] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 08/23/2023] [Indexed: 09/26/2023] Open
Abstract
Background: The extremely malignant tumour known as pancreatic cancer (PC) lacks efficient prognostic markers and treatment strategies. The microbiome is crucial to how cancer develops and responds to treatment. Our study was conducted in order to better understand how PC patients' microbiomes influence their outcome, tumour microenvironment, and responsiveness to immunotherapy. Methods: We integrated transcriptome and microbiome data of PC and used univariable Cox regression and Kaplan-Meier method for screening the prognostic microbes. Then intratumor microbiome-derived subtypes were identified using consensus clustering. We utilized LASSO and Cox regression to build the microbe-related model for predicting the prognosis of PC, and utilized eight algorithms to assess the immune microenvironment feature. The OncoPredict package was utilized to predict drug treatment response. We utilized qRT-PCR to verify gene expression and single-cell analysis to reveal the composition of PC tumour microenvironment. Results: We obtained a total of 26 prognostic genera in PC. And PC samples were divided into two microbiome-related subtypes: Mcluster A and B. Compared with Mcluster A, patients in Mcluster B had a worse prognosis and higher TNM stage and pathological grade. Immune analysis revealed that neutrophils, regulatory T cell, CD8+ T cell, macrophages M1 and M2, cancer associated fibroblasts, myeloid dendritic cell, and activated mast cell had remarkably higher infiltrated levels within the tumour microenvironment of Mcluster B. Patients in Mcluster A were more likely to benefit from CTLA-4 blockers and were highly sensitive to 5-fluorouracil, cisplatin, gemcitabine, irinotecan, oxaliplatin, and epirubicin. Moreover, we built a microbe-derived model to assess the outcome. The ROC curves showed that the microbe-related model has good predictive performance. The expression of LAMA3 and LIPH was markedly increased within pancreatic tumour tissues and was linked to advanced stage and poor prognosis. Single-cell analysis indicated that besides cancer cells, the tumour microenvironment of PC was also rich in monocytes/macrophages, endothelial cells, and fibroblasts. LIPH and LAMA3 exhibited relatively higher expression in cancer cells and neutrophils. Conclusion: The intratumor microbiome-derived subtypes and signature in PC were first established, and our study provided novel perspectives on PC prognostic indicators and treatment options.
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Affiliation(s)
- Biao Zhang
- Department of General Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Jifeng Liu
- Department of General Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Han Li
- Department of Oncology, Southwest Medical University, Luzhou, China
| | - Bingqian Huang
- Department of General Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, China
- Institute (College) of Integrative Medicine, Dalian Medical University, Dalian, China
| | - Bolin Zhang
- Department of Visceral, Martin-Luther-University Halle-Wittenberg, University Medical Center Halle, Halle, Germany
| | - Binyu Song
- Department of Plastic Surgery, Xijing Hospital, Xi’an, China
| | - Chongchan Bao
- Department of Breast and Thyroid Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Yunfei Liu
- Department of General, Visceral, and Transplant Surgery, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Zhizhou Wang
- Department of General Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, China
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