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Hu Y, Wang A, Yan W, Li J, Meng X, Chen L, Li S, Tong W, Kong N, Yu L, Yu H, Shan T, Xu J, Tong G, Zheng H. Identification of Linear Epitopes in the C-Terminal Region of ASFV p72 Protein. Microorganisms 2023; 11:2846. [PMID: 38137990 PMCID: PMC10746095 DOI: 10.3390/microorganisms11122846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 11/17/2023] [Accepted: 11/17/2023] [Indexed: 12/24/2023] Open
Abstract
African swine fever, which is induced by the African swine fever virus (ASFV), poses a significant threat to the global pig industry due to its high lethality in domestic pigs and wild boars. Despite the severity of the disease, there is a lack of effective vaccines and drugs against the ASFV. The p72 protein, constituting 31 to 33% of the total virus particle mass, serves as the primary capsid protein of ASFV. It is a crucial antigen for the development of ASF subunit vaccines and serological diagnostic methods. In this investigation, 27 monoclonal antibodies (mAbs) were generated through mouse immunization with the truncated C-terminal p72 protein expressed by Escherichia coli. Among these, six mAbs exhibited binding to the p72 trimer, with their respective recognized epitopes identified as 542VTAHGINLIDKF553, 568GNAIKTP574, and 584FALKPREEY592. All three epitopes were situated within the interval sequences of functional units of the C-terminal jelly-roll barrel of p72. Notably, two epitopes, 568GNAIKTP574 and 584FALKPREEY592, were internal to the p72 trimer, while the epitope 542VTAHGINLIDKF553 was exposed on the surface of the trimer and consistently conserved across all ASFV genotypes. These findings enhance our comprehension of the antigenic function and structure of the p72 protein, facilitating the utilization of p72 in the development of diagnostic techniques for ASFV.
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Affiliation(s)
- Yifan Hu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China; (Y.H.); (A.W.); (W.Y.); (J.L.); (X.M.); (L.C.); (S.L.); (W.T.); (N.K.); (L.Y.); (H.Y.); (T.S.); (G.T.)
| | - Anchen Wang
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China; (Y.H.); (A.W.); (W.Y.); (J.L.); (X.M.); (L.C.); (S.L.); (W.T.); (N.K.); (L.Y.); (H.Y.); (T.S.); (G.T.)
- College of Life Sciences, Anhui Agricultural University, Hefei 230031, China;
| | - Wanwan Yan
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China; (Y.H.); (A.W.); (W.Y.); (J.L.); (X.M.); (L.C.); (S.L.); (W.T.); (N.K.); (L.Y.); (H.Y.); (T.S.); (G.T.)
| | - Junbo Li
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China; (Y.H.); (A.W.); (W.Y.); (J.L.); (X.M.); (L.C.); (S.L.); (W.T.); (N.K.); (L.Y.); (H.Y.); (T.S.); (G.T.)
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin 150040, China
| | - Xin Meng
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China; (Y.H.); (A.W.); (W.Y.); (J.L.); (X.M.); (L.C.); (S.L.); (W.T.); (N.K.); (L.Y.); (H.Y.); (T.S.); (G.T.)
- College of Wildlife and Protected Area, Northeast Forestry University, Harbin 150040, China
| | - Lingchao Chen
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China; (Y.H.); (A.W.); (W.Y.); (J.L.); (X.M.); (L.C.); (S.L.); (W.T.); (N.K.); (L.Y.); (H.Y.); (T.S.); (G.T.)
| | - Songnan Li
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China; (Y.H.); (A.W.); (W.Y.); (J.L.); (X.M.); (L.C.); (S.L.); (W.T.); (N.K.); (L.Y.); (H.Y.); (T.S.); (G.T.)
| | - Wu Tong
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China; (Y.H.); (A.W.); (W.Y.); (J.L.); (X.M.); (L.C.); (S.L.); (W.T.); (N.K.); (L.Y.); (H.Y.); (T.S.); (G.T.)
| | - Ning Kong
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China; (Y.H.); (A.W.); (W.Y.); (J.L.); (X.M.); (L.C.); (S.L.); (W.T.); (N.K.); (L.Y.); (H.Y.); (T.S.); (G.T.)
| | - Lingxue Yu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China; (Y.H.); (A.W.); (W.Y.); (J.L.); (X.M.); (L.C.); (S.L.); (W.T.); (N.K.); (L.Y.); (H.Y.); (T.S.); (G.T.)
| | - Hai Yu
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China; (Y.H.); (A.W.); (W.Y.); (J.L.); (X.M.); (L.C.); (S.L.); (W.T.); (N.K.); (L.Y.); (H.Y.); (T.S.); (G.T.)
| | - Tongling Shan
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China; (Y.H.); (A.W.); (W.Y.); (J.L.); (X.M.); (L.C.); (S.L.); (W.T.); (N.K.); (L.Y.); (H.Y.); (T.S.); (G.T.)
| | - Jiaping Xu
- College of Life Sciences, Anhui Agricultural University, Hefei 230031, China;
| | - Guangzhi Tong
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China; (Y.H.); (A.W.); (W.Y.); (J.L.); (X.M.); (L.C.); (S.L.); (W.T.); (N.K.); (L.Y.); (H.Y.); (T.S.); (G.T.)
| | - Hao Zheng
- Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China; (Y.H.); (A.W.); (W.Y.); (J.L.); (X.M.); (L.C.); (S.L.); (W.T.); (N.K.); (L.Y.); (H.Y.); (T.S.); (G.T.)
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonosis, Yangzhou University, Yangzhou 225009, China
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Meng XL, Lu JC, Zeng HY, Chen Z, Guo XJ, Gao C, Pei YZ, Hu SY, Ye M, Sun QM, Yang GH, Cai JB, Huang PX, Yv L, Zhang L, Shi YH, Ke AW, Zhou J, Fan J, Chen Y, Huang XY, Shi GM. The clinical implications and molecular features of intrahepatic cholangiocarcinoma with perineural invasion. Hepatol Int 2022; 17:63-76. [PMID: 36418844 PMCID: PMC9895046 DOI: 10.1007/s12072-022-10445-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 10/23/2022] [Indexed: 11/26/2022]
Abstract
BACKGROUND Perineural invasion (PNI) is associated with metastasis in malignancies, including intrahepatic cholangiocarcinoma (ICC), and is correlated with poor prognosis. METHODS The study included three large cohorts: ZS-ICC and TMA cohorts from our team, MSK cohort from a public database, and a small cohort named cohort 4. Prognostic implications of PNI were investigated in MSK cohort and TMA cohort. PNI-related genomic and transcriptomic profiles were analyzed in MSK and ZS-ICC cohorts. GO, KEGG, and ssGSEA analyses were performed. Immunohistochemistry was used to investigate the relationship between PNI and markers of neurons, hydrolases, and immune cells. The efficacy of adjuvant therapy in ICC patients with PNI was also assessed. RESULTS A total of 30.6% and 20.7% ICC patients had PNI in MSK and TMA cohorts respectively. Patients with PNI presented with malignant phenotypes such as high CA19-9, the large bile duct type, lymph node invasion, and shortened overall survival (OS) and relapse-free survival (RFS). Nerves involved in PNI positively express tyrosine hydroxylase (TH), a marker of sympathetic nerves. Patients with PNI showed high mutation frequency of KRAS and an immune suppressive metastasis prone niche of decreased NK cell, increased neutrophil, and elevated PD-L1, CD80, and CD86 expression. Patients with PNI had an extended OS after adjuvant therapy with TEGIO, GEMOX, or capecitabine. CONCLUSION Our study deciphered the genomic features and the immune suppressive metastasis-prone niche in ICC with PNI. Patients with PNI showed a poor prognosis after surgery but a good response to adjuvant chemotherapy.
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Affiliation(s)
- Xian-Long Meng
- Department of Liver Surgery and Transplantation, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
- Liver Cancer Institute, Fudan University, Shanghai, 200032, China
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education of the People's Republic of China, Shanghai, 200032, China
| | - Jia-Cheng Lu
- Department of Liver Surgery and Transplantation, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
- Liver Cancer Institute, Fudan University, Shanghai, 200032, China
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education of the People's Republic of China, Shanghai, 200032, China
| | - Hai-Ying Zeng
- Department of Pathology, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Zhen Chen
- Clinical Research Unit, Institute of Clinical Science, Zhongshan Hospital of Fudan University, Shanghai, 200032, China
| | - Xiao-Jun Guo
- Department of Liver Surgery and Transplantation, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
- Liver Cancer Institute, Fudan University, Shanghai, 200032, China
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education of the People's Republic of China, Shanghai, 200032, China
| | - Chao Gao
- Department of Liver Surgery and Transplantation, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Yan-Zi Pei
- Department of Liver Surgery and Transplantation, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Shu-Yang Hu
- Department of Liver Surgery and Transplantation, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Mu Ye
- Department of Liver Surgery and Transplantation, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Qi-Man Sun
- Department of Liver Surgery and Transplantation, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Guo-Huang Yang
- Department of Liver Surgery and Transplantation, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Jia-Bin Cai
- Department of Liver Surgery and Transplantation, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
| | - Pei-Xin Huang
- Liver Cancer Institute, Fudan University, Shanghai, 200032, China
| | - Lei Yv
- Clinical Research Unit, Institute of Clinical Science, Zhongshan Hospital of Fudan University, Shanghai, 200032, China
| | - Lv Zhang
- Clinical Research Unit, Institute of Clinical Science, Zhongshan Hospital of Fudan University, Shanghai, 200032, China
| | - Ying-Hong Shi
- Department of Liver Surgery and Transplantation, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
- Liver Cancer Institute, Fudan University, Shanghai, 200032, China
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education of the People's Republic of China, Shanghai, 200032, China
| | - Ai-Wu Ke
- Liver Cancer Institute, Fudan University, Shanghai, 200032, China
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education of the People's Republic of China, Shanghai, 200032, China
| | - Jian Zhou
- Department of Liver Surgery and Transplantation, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
- Liver Cancer Institute, Fudan University, Shanghai, 200032, China
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education of the People's Republic of China, Shanghai, 200032, China
| | - Jia Fan
- Department of Liver Surgery and Transplantation, Zhongshan Hospital, Fudan University, Shanghai, 200032, China
- Liver Cancer Institute, Fudan University, Shanghai, 200032, China
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education of the People's Republic of China, Shanghai, 200032, China
| | - Yi Chen
- Liver Cancer Institute, Fudan University, Shanghai, 200032, China.
| | - Xiao-Yong Huang
- Department of Liver Surgery and Transplantation, Zhongshan Hospital, Fudan University, Shanghai, 200032, China.
- Liver Cancer Institute, Fudan University, Shanghai, 200032, China.
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education of the People's Republic of China, Shanghai, 200032, China.
| | - Guo-Ming Shi
- Department of Liver Surgery and Transplantation, Zhongshan Hospital, Fudan University, Shanghai, 200032, China.
- Liver Cancer Institute, Fudan University, Shanghai, 200032, China.
- Key Laboratory of Carcinogenesis and Cancer Invasion, Ministry of Education of the People's Republic of China, Shanghai, 200032, China.
- Clinical Research Unit, Institute of Clinical Science, Zhongshan Hospital of Fudan University, Shanghai, 200032, China.
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