1
|
Assessment of MDA and 8-OHdG expressions in ovine pulmonary adenocarcinomas by immunohistochemical and immunofluorescence methods. ACTA VET BRNO 2022. [DOI: 10.2754/avb202291030235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
This study aimed to reveal the presence of reactive oxygen species (ROS)-induced lipid peroxidation and DNA damage in ovine pulmonary adenocarcinomas (OPA) by evaluating malondialdehyde (MDA) and 8-hydroxy-2-deoxyguanosine (8-OHdG) expressions by immunohistochemical and immunofluorescence methods. Lung tissue samples were collected from 26 sheep brought to the Pathology Department for routine diagnosis. Lung tissues were fixed in 10% neutral buffered formalin, following routine procedures tissues were stained with hematoxylin and eosin. Avidin-Biotin Peroxidase method was used as immunohistochemical staining. Indirect immunofluorescence method was applied to the sections. Tumoral cells showed acinar, papillary or mixed type patterns. Only 2 of 20 cases metastasized to regional lymph nodes. All OPAs were immune positive for Jaagsiekte Sheep Retrovirus Capsid Protein (JSRV CA), MDA and 8-OHdG. The control group was negative for JSRV CA, MDA and 8-OHdG expressions. Malondialdehyde and 8-OHdG immune positive cells were statistically increased in the OPA group compared to the control group. In conclusion, our results demonstrate that higher MDA and 8-OHdG expressions in sheep with OPA suggest that OPA may be closely related to lipid peroxidation and oxidative DNA damage.
Collapse
|
2
|
Hu Y, Ren S, He Y, Wang L, Chen C, Tang J, Liu W, Yu F. Possible Oncogenic Viruses Associated with Lung Cancer. Onco Targets Ther 2020; 13:10651-10666. [PMID: 33116642 PMCID: PMC7585805 DOI: 10.2147/ott.s263976] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 09/02/2020] [Indexed: 01/01/2023] Open
Abstract
Lung cancer is the most common cause of cancer death worldwide. Tobacco smoking is the most predominant etiology for lung cancer. However, only a small percentage of heavy smokers develop lung cancer, which suggests that other cofactors are required for lung carcinogenesis. Viruses have been central to modern cancer research and provide profound insights into cancer causes. Nevertheless, the role of virus in lung cancer is still unclear. In this article, we reviewed the possible oncogenic viruses associated with lung cancer.
Collapse
Affiliation(s)
- Yan Hu
- Department of Thoracic Surgery, The Thoracic Surgery Research Room, Second Xiangya Hospital, Central South University, Changsha 410011, People's Republic of China
| | - Siying Ren
- Department of Respiratory Medicine, Hunan Centre for Evidence-Based Medicine, Research Unit of Respiratory Diseases, Second Xiangya Hospital, Central South University, Changsha 410011, People's Republic of China
| | - Yu He
- Department of Thoracic Surgery, The Thoracic Surgery Research Room, Second Xiangya Hospital, Central South University, Changsha 410011, People's Republic of China
| | - Li Wang
- Department of Thoracic Surgery, The Thoracic Surgery Research Room, Second Xiangya Hospital, Central South University, Changsha 410011, People's Republic of China
| | - Chen Chen
- Department of Thoracic Surgery, The Thoracic Surgery Research Room, Second Xiangya Hospital, Central South University, Changsha 410011, People's Republic of China
| | - Jingqun Tang
- Department of Thoracic Surgery, The Thoracic Surgery Research Room, Second Xiangya Hospital, Central South University, Changsha 410011, People's Republic of China
| | - Wenliang Liu
- Department of Thoracic Surgery, The Thoracic Surgery Research Room, Second Xiangya Hospital, Central South University, Changsha 410011, People's Republic of China
| | - Fenglei Yu
- Department of Thoracic Surgery, The Thoracic Surgery Research Room, Second Xiangya Hospital, Central South University, Changsha 410011, People's Republic of China
| |
Collapse
|
3
|
Toma C, Bâlteanu VA, Tripon S, Trifa A, Rema A, Amorim I, Pop RM, Popa R, Catoi C, Taulescu M. Exogenous Jaagsiekte Sheep Retrovirus type 2 (exJSRV2) related to ovine pulmonary adenocarcinoma (OPA) in Romania: prevalence, anatomical forms, pathological description, immunophenotyping and virus identification. BMC Vet Res 2020; 16:296. [PMID: 32807166 PMCID: PMC7433209 DOI: 10.1186/s12917-020-02521-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 08/12/2020] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Ovine pulmonary adenocarcinoma (OPA) is a neoplastic disease caused by exogenous Jaagsiekte Sheep Retrovirus (exJSRV). The prevalence of JSRV-related OPA in Eastern European countries, including Romania is unknown. We aimed to investigate: the prevalence and morphological features of OPA (classical and atypical forms) in the Transylvania region (Romania), the immunophenotype of the pulmonary tumors and their relationships with exJSRV infection. A total of 2693 adult ewes slaughtered between 2017 and 2019 in two private slaughterhouses from Transylvania region (Romania) was evaluated. Lung tumors were subsequently assessed by cytology, histology, immunocytochemistry, immunohistochemistry, electron microscopy and DNA testing. RESULTS Out of 2693 examined sheep, 34 had OPA (1.26% prevalence). The diaphragmatic lobes were the most affected. Grossly, the classical OPA was identified in 88.24% of investigated cases and the atypical OPA in 11.76% that included solitary myxomatous nodules. Histopathology results confirmed the presence of OPA in all suspected cases, which were classified into acinar and papillary types. Myxoid growths (MGs) were diagnosed in 6 classical OPA cases and in 2 cases of atypical form. Lung adenocarcinoma was positive for MCK and TTF-1, and MGs showed immunoreaction for Vimentin, Desmin and SMA; Ki67 expression of classical OPA was higher than atypical OPA and MGs. JSRV-MA was identified by IHC (94.11%) in both epithelial and mesenchymal cells of OPA. Immunocytochemistry and electron microscopy also confirmed the JSRV within the neoplastic cells. ExJSRV was identified by PCR in 97.05% of analyzed samples. Phylogenetic analysis revealed the presence of the exJSRV type 2 (MT809678.1) in Romanian sheep affected by lung cancer and showed a high similarity with the UK strain (AF105220.1). CONCLUSIONS In this study, we confirmed for the first time in Romania the presence of exJSRV in naturally occurring OPA in sheep. Additionally, we described the first report of atypical OPA in Romania, and to the best of our knowledge, in Eastern Europe. Finally, we showed that MGs have a myofibroblastic origin.
Collapse
Affiliation(s)
- Corina Toma
- Department of Veterinary Pathology, University of Agricultural Sciences and Veterinary Medicine, 3-5 Calea Manastur, 400372, Cluj-Napoca, Romania
| | - Valentin Adrian Bâlteanu
- Laboratory of Genomics, Biodiversity, Animal Breeding and Molecular Pathology, Institute of Life Sciences, University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, Romania
| | - Septiumiu Tripon
- National Institute for Research and Development of Isotopic and Molecular Technology, "C. Crăciun" Electron Microscopy Laboratory, Babeș-Bolyai University, Cluj-Napoca, Romania
| | - Adrian Trifa
- Department of Genetics, "Iuliu Haţieganu" University of Medicine and Pharmacy, Cluj-Napoca, Romania
- Department of Genetics, "Ion Chiricuta" Cancer Institute, Cluj-Napoca, Romania
| | - Alexandra Rema
- Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Rua Jorge Viterbo Ferreira nr.228, 4050-313, Porto, Portugal
| | - Irina Amorim
- Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Rua Jorge Viterbo Ferreira nr.228, 4050-313, Porto, Portugal
| | - Raluca Maria Pop
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Iuliu Haţieganu University of Medicine and Pharmacy Cluj-Napoca, 400337, Cluj-Napoca, Romania
| | - Roxana Popa
- Department of Veterinary Pathology, University of Agricultural Sciences and Veterinary Medicine, 3-5 Calea Manastur, 400372, Cluj-Napoca, Romania
| | - Cornel Catoi
- Department of Veterinary Pathology, University of Agricultural Sciences and Veterinary Medicine, 3-5 Calea Manastur, 400372, Cluj-Napoca, Romania
| | - Marian Taulescu
- Department of Veterinary Pathology, University of Agricultural Sciences and Veterinary Medicine, 3-5 Calea Manastur, 400372, Cluj-Napoca, Romania.
- Laboratory of Genomics, Biodiversity, Animal Breeding and Molecular Pathology, Institute of Life Sciences, University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, Romania.
| |
Collapse
|
4
|
Yang H, Zhang L, Liu S. Determination of reference genes for ovine pulmonary adenocarcinoma infected lung tissues using RNA-seq transcriptome profiling. J Virol Methods 2020; 284:113923. [PMID: 32615131 DOI: 10.1016/j.jviromet.2020.113923] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Revised: 02/25/2020] [Accepted: 06/25/2020] [Indexed: 01/08/2023]
Abstract
Ovine pulmonary adenocarcinoma (OPA) is a globally occurring tumor of lung epithelium which seriously affects the development of sheep farming. In our research, lung tissues of 3 naturally infected OPA individuals and 3 healthy individuals (2-4 years old) were collected. RNA was extracted for transcriptome analysis and reference gene selection. According to transcriptome analysis, 7 candidate reference genes (eukaryotic translation initiation factor 1, EIF1; glyceraldehyde-3-phosphate dehydrogenase, GAPDH; beta-actin, ACTB; GABA Type A receptor-associated protein, GABARAP; activating transcription factor 4, ATF4; ribosomal protein S15, RPS15; and Y-Box binding protein 1, YBX1) showed fragments per kilobase of transcript per million fragments mapped (FPKM) values > 200.0 and standard errors of the means (SEM) < 20.0. Expression of the above candidate reference genes was evaluated by Real-time quantitative polymerase chain reaction (RT-qPCR) combined with the analysis using GeNorm, NormFinder, and BestKeeper software. Comprehensive analysis of the results showed that ACTB was the most stable one, followed by EIF1 and GABARAP. Then, expression stability of the above three genes were validated, suggesting as suitable reference genes in sheep lung tissue, in additional 30 OPA-affected lung tissues and 10 healthy ovine lung tissues. Finally, our findings will be helpful for the subsequent study on the tumorigenic mechanism of OPA.
Collapse
Affiliation(s)
- Hui Yang
- Veterinary Medicine College of Inner Mongolia Agricultural University, Zhao Wu Da Road 306#, Hohhot 010018, People's Republic of China; Inner Mongolia Key Laboratory of Basic Veterinary Science, Hohhot 010018, People's Republic of China; Key Laboratory of Clinical Diagnosis and Treatment Technology in Animal Disease, Ministry of Agriculture, Hohhot 010018, People's Republic of China.
| | - Liang Zhang
- Veterinary Medicine College of Inner Mongolia Agricultural University, Zhao Wu Da Road 306#, Hohhot 010018, People's Republic of China; Inner Mongolia Key Laboratory of Basic Veterinary Science, Hohhot 010018, People's Republic of China; Key Laboratory of Clinical Diagnosis and Treatment Technology in Animal Disease, Ministry of Agriculture, Hohhot 010018, People's Republic of China.
| | - Shuying Liu
- Veterinary Medicine College of Inner Mongolia Agricultural University, Zhao Wu Da Road 306#, Hohhot 010018, People's Republic of China; Inner Mongolia Key Laboratory of Basic Veterinary Science, Hohhot 010018, People's Republic of China; Key Laboratory of Clinical Diagnosis and Treatment Technology in Animal Disease, Ministry of Agriculture, Hohhot 010018, People's Republic of China.
| |
Collapse
|
5
|
Chang HW, Lin ZM, Wu MJ, Wang LY, Chow YH, Jiang SS, Ch’ang HJ, Chang VHS. Characterization of a transgenic mouse model exhibiting spontaneous lung adenocarcinomas with a metastatic phenotype. PLoS One 2017; 12:e0175586. [PMID: 28419107 PMCID: PMC5395147 DOI: 10.1371/journal.pone.0175586] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Accepted: 03/28/2017] [Indexed: 01/19/2023] Open
Abstract
Developing lung cancer in mouse models that display similarities of both phenotype and genotype will undoubtedly provide further and better insights into lung tumor biology. Moreover, a high degree of pathophysiological similarity between lung tumors from mouse models and their human counterparts will make it possible to use these mouse models for preclinical tests. Ovine pulmonary adenocarcinomas (OPAs) present the same symptoms as adenocarcinomas in humans and are caused by a betaretrovirus. OPAs have served as an exquisite model of carcinogenesis for human lung adenocarcinomas. In this study, we characterized the histopathology and transcriptome profiles of a jaagsiekte sheep retrovirus (JSRV)-envelope protein (Env) transgenic mouse model with spontaneous lung tumors, and associations of the transcriptome profiles with tumor invasion/metastasis, especially the phenomenon of the epithelial-mesenchymal transition (EMT). Genetic information obtained from an expression array was analyzed using an ingenuity pathways analysis (IPA) and human disease database (MalaCards). By careful examination, several novel EMT-related genes were identified from tumor cells using RT-qPCR, and these genes also scored high in MalaCards. We concluded that the JSRV-Env mouse model could serve as a spontaneous lung adenocarcinoma model with a metastatic phenotype, which will benefit the study of early-onset and progression of lung adenocarcinoma. In addition, it can also be a valuable tool for biomarkers and drug screening, which will be helpful in developing intervention therapies.
Collapse
Affiliation(s)
- Hsuen-Wen Chang
- Laboratory Animal Center, Office of Research and Development, Taipei Medical University, Taipei, Taiwan
| | - Zih-Miao Lin
- The PhD Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Min-Ju Wu
- Laboratory Animal Center, Office of Research and Development, Taipei Medical University, Taipei, Taiwan
| | - Li-Yu Wang
- The PhD Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Yen-Hung Chow
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Shih Sheng Jiang
- National Institute of Cancer Research, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Hui-Ju Ch’ang
- National Institute of Cancer Research, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Vincent HS Chang
- The PhD Program for Translational Medicine, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| |
Collapse
|