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El-Ashram S, Zhang Y, Ji Y, Salama D, Mei K, Zhili L, Shujian H, Zhang H, Aboelhadid SM, Alajmi RA, Metwally DM, El-Khadragy MF, Hargis BM, Tellez-Isaias G, Cenci-Goga BT, Karama M, Marufu MC, Abouhajer F, Ali Abdelhafez Hamady G, El Wakil A, Al Nasr I, Suo X. A rapid and simple single-step method for the purification of Toxoplasma gondii tachyzoites and bradyzoites. Vet Med Sci 2020; 7:357-361. [PMID: 32979302 PMCID: PMC8025613 DOI: 10.1002/vms3.364] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 11/27/2019] [Revised: 04/02/2020] [Accepted: 09/09/2020] [Indexed: 11/23/2022] Open
Abstract
This study describes a simple method for the large‐scale isolation of pure Toxoplasma gondii tachyzoites and bradyzoites. T. gondii tachyzoites were obtained from infected human foreskin fibroblasts (HFFs) and peritoneal exudates of mice, while tissue cysts containing bradyzoites were collected from chronically infected mice. Harvested cells and brain tissues were incubated in Hanks balanced salt solution (HBSS), containing 0.25% trypsin and 0.5% taurodeoxycholic acid (TDC) for 5 min. Subsequent washes in phosphate buffered saline (PBS) were conducted, and the cell viability of the preparations was good, as determined by flow cytometry and ability to reinfect HFF cells and propagate in mice. The purification procedure allowed for a rapid preparation of pure T. gondii tachyzoites and bradyzoites in sufficient quantity that can be used for downstream procedures. The advantage of the new method is that it is convenient and inexpensive.
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Affiliation(s)
- Saeed El-Ashram
- College of Life Science and Engineering, Foshan University, Foshan, Guangdong Province, China.,Faculty of Science, Kafrelsheikh University, Kafr el-Sheikh, Egypt
| | - Yu Zhang
- College of Life Science and Engineering, Foshan University, Foshan, Guangdong Province, China
| | - Yongsheng Ji
- School of Basic Medical Sciences, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, China
| | - Dina Salama
- Department of Parasitology and Animal Disease, National Research Centre, Dokki, Giza, Egypt.,Parasitology Department, Faculty of Veterinary Medicine, Beni Suef University, Beni-Suef, Egypt
| | - Kun Mei
- College of Life Science and Engineering, Foshan University, Foshan, Guangdong Province, China
| | - Li Zhili
- College of Life Science and Engineering, Foshan University, Foshan, Guangdong Province, China
| | - Huang Shujian
- College of Life Science and Engineering, Foshan University, Foshan, Guangdong Province, China
| | - Haoji Zhang
- College of Life Science and Engineering, Foshan University, Foshan, Guangdong Province, China
| | - Shawky M Aboelhadid
- Parasitology Department, Faculty of Veterinary Medicine, Beni Suef University, Beni-Suef, Egypt
| | - Reem A Alajmi
- Department of Zoology, Faculty of Science, King Saud University, Riyadh, Saudi Arabia
| | - Dina M Metwally
- Department of Zoology, Faculty of Science, King Saud University, Riyadh, Saudi Arabia
| | - Manal F El-Khadragy
- Department of Zoology and Entomology, Faculty of Science, Helwan University, Cairo, Egypt
| | - Billy M Hargis
- Department of Poultry Science, University of Arkansas, Fayetteville, AR, USA
| | | | - Beniamino T Cenci-Goga
- Dipartimento di Medicina Veterinaria, Laboratorio di Ispezione degli Alimenti di Origine Animale, University of Perugia, Perugia, Italy
| | - Musafiri Karama
- Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Onderstepoort, South Africa
| | - Munyaradzi C Marufu
- Department of Veterinary Tropical Diseases, Faculty of Veterinary Science, University of Pretoria, Onderstepoort, South Africa
| | - Fathi Abouhajer
- Faculty of Education, Asmarya University for Islamic Sciences, Zliten, Libya
| | | | - Abeer El Wakil
- Department of Biological & Geological Sciences, Alexandria University, Alexandria, Egypt
| | - Ibrahim Al Nasr
- College of Science and Arts in Unaizah, Qassim University, Unaizah, Saudi Arabia.,College of Applied Health Sciences in Ar Rass, Qassim University, Ar Rass, Saudi Arabia
| | - Xun Suo
- National Animal Protozoa Laboratory & College of Veterinary Medicine, China Agricultural University, Beijing, China
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Yuming F, Sheng Y, Wenyu D, Shihong C, Wenfeng L, Wenjing H, Xiaowen L, El-Ashram S, Mei K, Jinyue G, Xuelian Z, Zhili L, Shujian H. Molecular characterization and phylogenetic analysis of fowl adenovirus serotype-4 from Guangdong Province, China. Vet World 2020; 13:981-986. [PMID: 32636597 PMCID: PMC7311883 DOI: 10.14202/vetworld.2020.981-986] [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: 11/26/2019] [Accepted: 04/09/2020] [Indexed: 01/15/2023] Open
Abstract
Aim: Our aim in this study was to isolate potentially novel strains of fowl adenovirus serotype-4 (FAdV-4) that is currently circulating in broiler chicken flocks in Guangdong Province, China, and to compare nucleotide and amino acid (AA) sequences of their respective hexon genes. Materials and Methods: The experiment was carried out on poultry farms experiencing outbreaks of FAdV-4-associated hydropericardium syndrome (HPS). Tissue samples from the hearts and livers of deceased chickens were screened for FAdV-4 infection using hexon gene-specific polymerase chain reaction (PCR). Results: New virus isolates were used to infect 7-day-old chicks, which went onto reproduce typical HPS signs. The hypervariable region of the FAdV-4 hexon gene was PCR-amplified and sequenced. The hexon nucleotide and deduced AA sequence identities were 99.8-99.9% and 99.5-99.8%, respectively, among the four novel isolates. In addition, the new isolates were 97-100% and 96.4-99.9% identical to the nucleotide and deduced AA sequences, respectively, of FAdV-4 hexon genes available in the National Center for Biotechnology Information GenBank database. Phylogenetic analyses, based on the hexon gene sequence, revealed that the new isolates, clustered with FAdV-C; the FAdV-A, FAdV-B, FAdV-D, and FAdV-E viruses, were more distantly related. Conclusion: New FAdV-4 isolates from Guangdong Province are similar to those identified in other regions of the world. This information provides critical insight into HPS epidemiology and provides a perspective for monitoring outbreaks and developing strategies for disease prevention.
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Affiliation(s)
- Fu Yuming
- Department of Microbiology, College of Life Science and Engineering, Foshan University, Foshan 528231, Guangdong Province, China
| | - Yuan Sheng
- Department of Microbiology, College of Life Science and Engineering, Foshan University, Foshan 528231, Guangdong Province, China
| | - Deng Wenyu
- Guangdong Women and Children Hospital, Guangdong Province, China
| | - Chi Shihong
- Department of Microbiology, College of Life Science and Engineering, Foshan University, Foshan 528231, Guangdong Province, China
| | - Li Wenfeng
- Department of Microbiology, College of Life Science and Engineering, Foshan University, Foshan 528231, Guangdong Province, China
| | - Huang Wenjing
- Department of Microbiology, College of Life Science and Engineering, Foshan University, Foshan 528231, Guangdong Province, China
| | - Li Xiaowen
- Department of Microbiology, College of Life Science and Engineering, Foshan University, Foshan 528231, Guangdong Province, China
| | - Saeed El-Ashram
- Department of Microbiology, College of Life Science and Engineering, Foshan University, Foshan 528231, Guangdong Province, China.,Department of Zoology, Faculty of Science, Kafrelsheikh University, Kafr el-Sheikh 33516, Egypt
| | - Kun Mei
- Department of Microbiology, College of Life Science and Engineering, Foshan University, Foshan 528231, Guangdong Province, China
| | - Guo Jinyue
- Department of Microbiology, College of Life Science and Engineering, Foshan University, Foshan 528231, Guangdong Province, China
| | - Zhang Xuelian
- Department of Microbiology, College of Life Science and Engineering, Foshan University, Foshan 528231, Guangdong Province, China
| | - Li Zhili
- Department of Microbiology, College of Life Science and Engineering, Foshan University, Foshan 528231, Guangdong Province, China
| | - Huang Shujian
- Department of Microbiology, College of Life Science and Engineering, Foshan University, Foshan 528231, Guangdong Province, China
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Birame BM, Jigui W, Fuxian Y, Jiazeng S, Zhili L, Weiquan L. Potentiation of Apoptin-induced apoptosis by Cecropin B-like antibacterial peptide ABPs1 in human HeLa cervical cancer cell lines is associated with membrane pore formation and caspase-3 activation. J Microbiol Biotechnol 2015; 24:756-64. [PMID: 24633228 DOI: 10.4014/jmb.1209.09076] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
Apoptin, a chicken anemia virus-encoded protein, induces apoptosis in chicken or human tumor cells, localizing in their nuclei as opposed to the cytoplasm of non-transformed cells. The present study was undertaken to investigate whether ABPs1 could potentiate apoptininduced apoptosis in HeLa cells. ABPs1 and the apoptin genes were successfully cloned into pIRES2-EGFP expression vector and expressed in HeLa cells. We report that ABPs1 augments apoptin cell growth inhibition in a concentration- and time-dependent manner. The DAPI staining and scanning electron microscopy observations revealed apoptotic bodies and plasma membrane pores, which were attributed to apoptin and ABPs1, respectively. Further, ABPs1 in combination with apoptin was found to increase the expression of Bax and to decrease the expression of survivin compared with either agent alone or the control. The apoptotic rate of HeLa cells treated with ABPs1 and apoptin in combination for 48 h was 53.95%. The two-gene combination increased the caspase-3 activity of HeLa cells. Taken together, our study suggests that ABPs1 combined with apoptin significantly inhibits HeLa cell proliferation, and induces cell apoptosis through membrane defects, up-regulation of Bax expression, down-regulation of survivin expression, and activation of the caspase-3 pathway. Thus, the combination of ABPs1 and apoptin could serve as a means to develop novel gene therapeutic agents against human cervical cancer.
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Affiliation(s)
- Basse Mame Birame
- State Key Laboratory of Agro-Biotechnology, College of Biological Sciences, China Agricultural University, Beijing 100193, P. R. China
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