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Li J, Sun L, Xie F, Shao T, Wu S, Li X, Zhang L, Wang R. MiR-3976 regulates HCT-8 cell apoptosis and parasite burden by targeting BCL2A1 in response to Cryptosporidium parvum infection. Parasit Vectors 2023; 16:221. [PMID: 37415254 DOI: 10.1186/s13071-023-05826-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 05/31/2023] [Indexed: 07/08/2023] Open
Abstract
BACKGROUND Cryptosporidium is second only to rotavirus as a cause of moderate-to-severe diarrhea in young children. There are currently no fully effective drug treatments or vaccines for cryptosporidiosis. MicroRNAs (miRNAs) are involved in regulating the innate immune response to Cryptosporidium parvum infection. In this study, we investigated the role and mechanism of miR-3976 in regulating HCT-8 cell apoptosis induced by C. parvum infection. METHODS Expression levels of miR-3976 and C. parvum burden were estimated using real-time quantitative polymerase chain reaction (RT-qPCR) and cell apoptosis was detected by flow cytometry. The interaction between miR-3976 and B-cell lymphoma 2-related protein A1 (BCL2A1) was studied by luciferase reporter assay, RT-qPCR, and western blotting. RESULTS Expression levels of miR-3976 were decreased at 8 and 12 h post-infection (hpi) but increased at 24 and 48 hpi. Upregulation of miR-3976 promoted cell apoptosis and inhibited the parasite burden in HCT-8 cells after C. parvum infection. Luciferase reporter assay indicated that BCL2A1 was a target gene of miR-3976. Co-transfection with miR-3976 and a BCL2A1 overexpression vector revealed that miR-3976 targeted BCL2A1 and suppressed cell apoptosis and promoted the parasite burden in HCT-8 cells. CONCLUSIONS The present data indicated that miR-3976 regulated cell apoptosis and parasite burden in HCT-8 cells by targeting BCL2A1 following C. parvum infection. Future study should determine the role of miR-3976 in hosts' anti-C. parvum immunity in vivo.
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Affiliation(s)
- Juanfeng Li
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China
| | - Lulu Sun
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China
| | - Fujie Xie
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China
| | - Tianren Shao
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China
| | - Shanbo Wu
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China
| | - Xiaoying Li
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China.
| | - Longxian Zhang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China
| | - Rongjun Wang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China.
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Yin YL, Yang X, Huang S, Hu GR, Yao Q, Song JK, Zhao GH. Circular RNA ciRS-7 affects the propagation of Cryptosporidium parvum in HCT-8 cells via regulating miR-135a-5p/stat1 axis. Acta Trop 2023; 243:106927. [PMID: 37080266 DOI: 10.1016/j.actatropica.2023.106927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/04/2023] [Accepted: 04/17/2023] [Indexed: 04/22/2023]
Abstract
Cryptosporidium spp. are protozoan parasites that mainly inhabit intestinal epithelial cells, causing diarrheal diseases in humans and a great number of animals. Cryptosporidium parvum is the most common zoonotic species, responsible for nearly 45% of human cryptosporidiosis worldwide. Understanding the interaction mechanisms between C. parvum and host gastrointestinal epithelial cells has significant implications to control cryptosporidiosis. One up-regulated circRNA ciRS-7 was found previously by our group to promote in vitro propagation of C. parvum in HCT-8 cells. In the present study, miR-135a-5p, was found to be a miRNA target of ciRS-7. Cryptosporidium parvum infection induced significantly down-regulation of miR-135a-5p and dramatic up-regulation of its potential target stat1 gene at mRNA and protein levels. Dual luciferase reporter assays validated the physical interactions between miR-135a-5p and stat1, and between ciRS-7 and miR-135a-5p. Further study revealed that ciRS-7 could sponge miR-135a-5p to positively regulate the protein levels of STAT1 and phosphorylated STAT1 (p-STAT1) and thus promote C. parvum propagation in HCT-8 cells. Our findings further reveal the mystery of regulatory roles of host circRNAs during Cryptosporidium infection, and provide a novel insight to develop strategies to control cryptosporidiosis.
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Affiliation(s)
- Yan-Ling Yin
- Key Laboratory of Ruminant Disease Prevention and Control (West), College of Veterinary Medicine, Northwest A&F University, Yangling 712100, China; Chongqing Three Gorges Vocational College, Chongqing 404155, China
| | - Xin Yang
- Key Laboratory of Ruminant Disease Prevention and Control (West), College of Veterinary Medicine, Northwest A&F University, Yangling 712100, China
| | - Shuang Huang
- Key Laboratory of Ruminant Disease Prevention and Control (West), College of Veterinary Medicine, Northwest A&F University, Yangling 712100, China
| | - Gui-Rong Hu
- Key Laboratory of Ruminant Disease Prevention and Control (West), College of Veterinary Medicine, Northwest A&F University, Yangling 712100, China
| | - Qian Yao
- Key Laboratory of Ruminant Disease Prevention and Control (West), College of Veterinary Medicine, Northwest A&F University, Yangling 712100, China
| | - Jun-Ke Song
- Key Laboratory of Ruminant Disease Prevention and Control (West), College of Veterinary Medicine, Northwest A&F University, Yangling 712100, China
| | - Guang-Hui Zhao
- Key Laboratory of Ruminant Disease Prevention and Control (West), College of Veterinary Medicine, Northwest A&F University, Yangling 712100, China.
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Zou Y, Zheng WB, Elsheikha HM, He JJ, Lu YX, Wang S, Guo A, Zhu XQ. Modulation of long noncoding RNA (lncRNA) and messenger RNA (mRNA) expression in the liver of Beagle dogs by Toxocara canis infection. Parasit Vectors 2023; 16:114. [PMID: 36991462 PMCID: PMC10057693 DOI: 10.1186/s13071-023-05738-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 03/13/2023] [Indexed: 03/31/2023] Open
Abstract
BACKGROUND Long non-coding RNAs (lncRNAs) and messenger RNAs (mRNAs) play crucial roles in regulating various physiological and pathological processes. However, the role of lncRNAs and mRNAs in mediating the liver response during Toxocara canis infection remains incompletely understood. METHODS In the present study, the expression profile of lncRNAs and mRNAs was investigated in the liver of Beagle dogs infected by T. canis using high-throughput RNA sequencing. RESULTS Compared with the control groups, 876 differentially expressed (DE) lncRNAs and 288 DEmRNAs were identified at 12 h post-infection (hpi), 906 DElncRNAs and 261 DEmRNAs were identified at 24 hpi, and 876 DElncRNAs and 302 DEmRNAs were identified at 36 days post-infection (dpi). A total of 16 DEmRNAs (e.g. dpp4, crp and gnas) were commonly identified at the three infection stages. Enrichment and co-localization analyses identified several pathways involved in immune and inflammatory responses during T. canis infection. Some novel DElncRNAs, such as LNC_015756, LNC_011050 and LNC_011052, were also associated with immune and inflammatory responses. Also, LNC_005105 and LNC_005401 were associated with the secretion of anti-inflammatory cytokines, which may play a role in the healing of liver pathology at the late stage of infection. CONCLUSIONS Our data provided new insight into the regulatory roles of lncRNAs and mRNAs in the pathogenesis of T. canis and improved our understanding of the contribution of lncRNAs and mRNAs to the immune and inflammatory response of the liver during T. canis infection.
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Affiliation(s)
- Yang Zou
- State Key Laboratory for Animal Disease Control and Prevention, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, People's Republic of China
| | - Wen-Bin Zheng
- Laboratory of Parasitic Diseases, College of Veterinary Medicine, Shanxi Agricultural University, Taigu, 030801, Shanxi Province, People's Republic of China
| | - Hany M Elsheikha
- Faculty of Medicine and Health Sciences, School of Veterinary Medicine and Science, University of Nottingham, Loughborough, LE12 5RD, UK
| | - Jun-Jun He
- Key Laboratory of Veterinary Public Health of Higher Education of Yunnan Province, College of Veterinary Medicine, Yunnan Agricultural University, Kunming, Yunnan Province, 650201, People's Republic of China
| | - Yi-Xin Lu
- Heilongjiang Key Laboratory for Zoonosis, College of Veterinary Medicine, Northeast Agricultural University, Harbin, 150030, Heilongjiang Province, People's Republic of China
| | - Shuai Wang
- State Key Laboratory for Animal Disease Control and Prevention, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, People's Republic of China
| | - Aijiang Guo
- State Key Laboratory for Animal Disease Control and Prevention, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, 730046, People's Republic of China.
| | - Xing-Quan Zhu
- Laboratory of Parasitic Diseases, College of Veterinary Medicine, Shanxi Agricultural University, Taigu, 030801, Shanxi Province, People's Republic of China.
- Key Laboratory of Veterinary Public Health of Higher Education of Yunnan Province, College of Veterinary Medicine, Yunnan Agricultural University, Kunming, Yunnan Province, 650201, People's Republic of China.
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Yu H, Mi C, Wang Q, Dai G, Zhang T, Zhang G, Xie K, Zhao Z. Long noncoding RNA profiling reveals that LncRNA BTN3A2 inhibits the host inflammatory response to Eimeria tenella infection in chickens. Front Immunol 2022; 13:891001. [PMID: 36091044 PMCID: PMC9452752 DOI: 10.3389/fimmu.2022.891001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 08/05/2022] [Indexed: 02/02/2023] Open
Abstract
Coccidiosis is a widespread parasitic disease that causes serious economic losses to the poultry industry every year. Long noncoding RNAs (lncRNAs) play important roles in transcriptional regulation and are involved in a variety of diseases and immune responses. However, the lncRNAs associated with Eimeria tenella (E. tenella) resistance have not been identified in chickens. In addition, the expression profiles and functions of lncRNAs during E. tenella infection remain unclear. In the present study, high-throughput sequencing was applied to identify lncRNAs in chicken cecal tissues from control (JC), resistant (JR), and susceptible (JS) groups on day 4.5 post-infection (pi), and functional tests were performed. A total of 564 lncRNAs were differentially expressed, including 263 lncRNAs between the JS and JC groups, 192 between the JR and JS groups, and 109 between the JR and JC groups. Functional analyses indicated that these differentially expressed lncRNAs were involved in pathways related to E. tenella infection, including the NF-kappa B signaling, B cell receptor signaling and natural killer cell-mediated cytotoxicity pathways. Moreover, through cis regulation network analysis of the differentially expressed lncRNAs, we found that a novel lncRNA termed lncRNA BTN3A2 was significantly increased in both cecum tissue and DF-1 cells after coccidia infection or sporozoite stimulation. Functional test data showed that the overexpression of lncRNA BTN3A2 reduced the production of inflammatory cytokines, including IL-6, IL-1β, TNF-α and IL-8, while lncRNA BTN3A2 knockdown promoted the production of these inflammatory cytokines. Taken together, this study identify the differentially expressed lncRNAs during E. tenella infection in chickens for the first time and provide the direct evidence that lncRNA BTN3A2 regulates the host immune response to coccidia infection.
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Affiliation(s)
- Hailiang Yu
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Changhao Mi
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Qi Wang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Guojun Dai
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China
- *Correspondence: Guojun Dai,
| | - Tao Zhang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Genxi Zhang
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Kaizhou Xie
- College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Zhenhua Zhao
- Poultry Institute, Chinese Academy of Agricultural Sciences, Yangzhou, China
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Xie F, Zhang Y, Li J, Sun L, Zhang L, Qi M, Zhang S, Jian F, Li X, Li J, Ning C, Wang R. MiR-942-5p targeting the IFI27 gene regulates HCT-8 cell apoptosis via a TRAIL-dependent pathway during the early phase of Cryptosporidium parvum infection. Parasit Vectors 2022; 15:291. [PMID: 35974384 PMCID: PMC9382849 DOI: 10.1186/s13071-022-05415-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Accepted: 07/28/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND MicroRNAs (miRNAs) are involved in the regulation of both the innate and adaptive immune response to Cryptosporidium parvum infection. We previously reported that C. parvum upregulated miR‑942‑5p expression in HCT‑8 cells via TLR2/TLR4‑NF‑κB signaling. In the present study, the role of miRNA-942-5p in the regulation of tumor necrosis factor-related apoptosis-inducing ligand (TRAIL)-mediated HCT-8 cell apoptosis induced by C. parvum was investigated. METHODS Quantitative real-time polymerase chain reaction, western blotting, flow cytometry, and immunofluorescence were used for analysis. RESULTS Forced expression of miRNA-942-5p resulted in decreased apoptosis and an increased C. parvum burden in HCT-8 cells. The opposite results were observed using the suppressed expression of miRNA-942-5p. The miRNA-942-5p led to the translational suppression of IFI27 gene through targeting the 3'-untranslated region of the IFI27 gene. Moreover, overexpression of the IFI27 gene produced a high apoptotic ratio and low C. parvum burden. In contrast, a low apoptotic ratio and a high C. parvum burden were observed following downregulation of the IFI27 gene. Both miR-942-5p and the IFI27 gene influenced TRAIL and caspase-8 expression induced by C. parvum in HCT-8 cells. Moreover, TRAIL promoted HCT-8 cell apoptosis in a concentration-dependent manner. CONCLUSIONS These data suggested that C. parvum induced the downregulation of IFI27 via relief of miR-942-5p-mediated translational suppression. IFI27 downregulation was affected the burden of C. parvum by regulating HCT-8 cell apoptosis through TRAIL-dependent pathways. Future studies should determine the mechanisms by which C. parvum infection increases miR-942-5p expression and the role of miR-942-5p in hosts' anti-C. parvum immunity in vivo.
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Affiliation(s)
- Fujie Xie
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China
| | - Yajun Zhang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China
| | - Juanfeng Li
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China
| | - Lulu Sun
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China
| | - Longxian Zhang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China.
| | - Meng Qi
- College of Animal Science, Tarim University, Alar, 843300, Xinjiang, China
| | - Sumei Zhang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China
| | - Fuchun Jian
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China
| | - Xiaoying Li
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China
| | - Junqiang Li
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China
| | - Changsheng Ning
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China
| | - Rongjun Wang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, China.
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Yin YL, Liu TL, Yao Q, Wang YX, Wu XM, Wang XT, Yang X, Song JK, Zhao GH. Circular RNA ciRS-7 affects the propagation of Cryptosporidium parvum in HCT-8 cells by sponging miR-1270 to activate the NF-κB signaling pathway. Parasit Vectors 2021; 14:238. [PMID: 33957927 PMCID: PMC8101149 DOI: 10.1186/s13071-021-04739-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 04/21/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Cryptosporidium is an important zoonotic pathogen responsible for severe enteric diseases in humans and animals. However, the molecular mechanisms underlying host and Cryptosporidium interactions are still not clear. METHODS To study the roles of circRNAs in host cells during Cryptosporidium infection, the expression profiles of circRNAs in HCT-8 cells infected with C. parvum were investigated using a microarray assay, and the regulatory role of a significantly upregulated circRNA, ciRS-7, was investigated during C. parvum infection. RESULTS C. parvum infection caused notable alterations in the expression profiles of circRNAs in HCT-8 cells, and a total of 178 (including 128 up- and 50 downregulated) circRNAs were significantly differentially expressed following C. parvum infection. Among them, ciRS-7 was significantly upregulated and regulated the NF-κB signaling pathway by sponging miR-1270 during C. parvum infection. Furthermore, the ciRS-7/miR-1270/relA axis markedly affected the propagation of C. parvum in HCT-8 cells. CONCLUSIONS Our results revealed that ciRS-7 would promote C. parvum propagation by regulating the miR-1270/relA axis and affecting the NF-κB pathway. To the best of our knowledge, this is the first study to investigate the role of circRNA during Cryptosporidium infection, and the findings provide a novel view for implementing control strategies against Cryptosporidium infection.
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Affiliation(s)
- Yan-Ling Yin
- Department of Parasitology, College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Ting-Li Liu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, China
| | - Qian Yao
- Department of Parasitology, College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Yu-Xin Wang
- Department of Parasitology, College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Xue-Mei Wu
- Department of Parasitology, College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Xue-Ting Wang
- Department of Parasitology, College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Xin Yang
- Department of Parasitology, College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Jun-Ke Song
- Department of Parasitology, College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Guang-Hui Zhao
- Department of Parasitology, College of Veterinary Medicine, Northwest A&F University, Yangling, China.
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Yin YL, Wang Y, Lai P, Yao Q, Li Y, Zhang LX, Yang X, Song JK, Zhao GH. Establishment and preliminary application of nanoparticle-assisted PCR assay for detection of Cryptosporidium spp. Parasitol Res 2021; 120:1837-1844. [PMID: 33649965 DOI: 10.1007/s00436-021-07101-2] [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: 11/10/2020] [Accepted: 02/22/2021] [Indexed: 11/30/2022]
Abstract
Cryptosporidium is an important intestinal protozoan parasite that causes diarrhoea in humans and animals. To rapidly and specifically detect Cryptosporidium spp., we designed a pair of primers based on the small subunit ribosomal RNA (SSU rRNA) gene of Cryptosporidium spp. to be used in a new nanoparticle-assisted PCR (nano-PCR) assay. The minimum detectable concentration (1.02 pg) of this nano-PCR was 10 times more sensitive than conventional PCR using the same primer pair. The DNA samples of C. parvum, C. baileyi, C. xiaoi, C. ryanae, and C. andersoni were successfully detected by the nano-PCR. No amplifications were evident with DNA samples of some common intestinal pathogens, including Eimeria tenella, Blastocystis sp., Giardia lamblia, Enterocytozoon bieneusi, and Balantidium coli. To validate the clinical usefulness of the novel nano-PCR, a total of 40 faecal samples from goats, camels, calves, and chickens were examined. The positive rate of Cryptosporidium spp. was 27.5% (11/40), which was consistent with that of an established nested PCR. These results indicate that the novel nano-PCR assay enables the rapid, specific, and accurate detection of Cryptosporidium infection in animals. The findings provide a technical basis for the clinical diagnosis, prevention, and control of cryptosporidiosis.
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Affiliation(s)
- Yan-Ling Yin
- College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, Shaanxi Province, People's Republic of China
| | - Yi Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, Shaanxi Province, People's Republic of China
| | - Peng Lai
- College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, Shaanxi Province, People's Republic of China
| | - Qian Yao
- College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, Shaanxi Province, People's Republic of China
| | - Yuan Li
- College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, Shaanxi Province, People's Republic of China
| | - Long-Xian Zhang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, Henan Province, People's Republic of China
| | - Xin Yang
- College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, Shaanxi Province, People's Republic of China
| | - Jun-Ke Song
- College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, Shaanxi Province, People's Republic of China.
| | - Guang-Hui Zhao
- College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, Shaanxi Province, People's Republic of China.
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Cryptosporidium: host and parasite transcriptome in infection. Curr Opin Microbiol 2020; 58:138-145. [PMID: 33160225 DOI: 10.1016/j.mib.2020.09.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 09/10/2020] [Indexed: 12/15/2022]
Abstract
Cryptosporidium is a waterborne gastrointestinal parasite that causes outbreaks of diarrheal disease worldwide. Despite the impact of this parasite on human health there are no effective drugs or vaccines. Transcriptomic data can provide insights into host-parasite interactions that lead to identification of targets for therapeutic interventions. However, for Cryptosporidium, interpreting transcriptomes has been challenging, in part due to the presence of multiple life cycle stages, the lack of appropriate host cells and the inability to culture the parasite through its complete life cycle. The recent improvements in cell culture and the ability to tag and isolate specific life cycle stages will radically improve transcriptomic data and advance our understanding of Cryptosporidium host-parasite interactions.
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de Souza W, Barrias ES. Membrane-bound extracellular vesicles secreted by parasitic protozoa: cellular structures involved in the communication between cells. Parasitol Res 2020; 119:2005-2023. [PMID: 32394001 DOI: 10.1007/s00436-020-06691-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Accepted: 04/15/2020] [Indexed: 02/06/2023]
Abstract
The focus of this review is a group of structures/organelles collectively known as extracellular vesicles (EVs) that are secreted by most, if not all, cells, varying from mammalian cells to protozoa and even bacteria. They vary in size: some are small (100-200 nm) and others are larger (> 200 nm). In protozoa, however, most of them are small or medium in size (200-400 nm). These include vesicles from different origins. We briefly review the biogenesis of this distinct group that includes (a) exosome, which originates from the multivesicular bodies, an important component of the endocytic pathway; (b) ectosome, formed from a budding process that takes place in the plasma membrane of the cells; (c) vesicles released from the cell surface following a process of patching and capping of ligand/receptor complexes; (d) other processes where tubules secreted by the parasite subsequently originate exosome-like structures. Here, special emphasis is given to EVs secreted by parasitic protozoa such as Leishmania, Trypanosoma, Plasmodium, Toxoplasma, Cryptosporidium, Trichomonas, and Giardia. Most of them have been characterized as exosomes that were isolated using several approaches and characterized by electron microscopy, proteomic analysis, and RNA sequencing. The results obtained show clearly that they present several proteins and different types of RNAs. From the functional point of view, it is now clear that the secreted exosomes can be incorporated by the parasite itself as well as by mammalian cells with which they interact. As a consequence, there is interference both with the parasite (induction of differentiation, changes in infectivity, etc.) and with the host cell. Therefore, the EVs constitute a new system of transference of signals among cells. On the other hand, there are suggestions that exosomes may constitute potential biotechnology tools and are important players of what has been designated as nanobiotechnology. They may constitute an important delivery system for gene therapy and molecular-displaying cell regulation capabilities when incorporated into other cells and even by interfering with the exosomal membrane during its biogenesis, targeting the vesicles via specific ligands to different cell types. These vesicles may reach the bloodstream, overflow through intercellular junctions, and even pass through the central nervous system blood barrier. There is evidence that it is possible to interfere with the composition of the exosomes by interfering with multivesicular body biogenesis.
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Affiliation(s)
- Wanderley de Souza
- Laboratório de Ultraestrutura Celular Hertha Meyer, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Centro de Ciências da Saúde, Bloco G, Ilha do Fundão, Rio de Janeiro, RJ, 21941-900, Brazil. .,Instituto Nacional de Ciência e Tecnologia and Núcleo de Biologia Estrutural e Bioimagens, CENABIO, Rio de Janeiro, Brazil.
| | - Emile S Barrias
- Instituto Nacional de Ciência e Tecnologia and Núcleo de Biologia Estrutural e Bioimagens, CENABIO, Rio de Janeiro, Brazil.,Laboratorio de Metrologia Aplicada à Ciências da Vida, Diretoria de Metrologia Aplicada à Ciências da Vida - Instituto Nacional de Metrologia, Qualidade e Tecnologia (Inmetro), Rio de Janeiro, Brazil
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Fan XC, Liu TL, Wang Y, Wu XM, Wang YX, Lai P, Song JK, Zhao GH. Genome-wide analysis of differentially expressed profiles of mRNAs, lncRNAs and circRNAs in chickens during Eimeria necatrix infection. Parasit Vectors 2020; 13:167. [PMID: 32245514 PMCID: PMC7118956 DOI: 10.1186/s13071-020-04047-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 03/27/2020] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Eimeria necatrix, the most highly pathogenic coccidian in chicken small intestines, can cause high morbidity and mortality in susceptible birds and devastating economic losses in poultry production, but the underlying molecular mechanisms in interaction between chicken and E. necatrix are not entirely revealed. Accumulating evidence shows that the long-non-coding RNAs (lncRNAs) and circular RNAs (circRNAs) are key regulators in various infectious diseases. However, the expression profiles and roles of these two non-coding RNAs (ncRNAs) during E. necatrix infection are still unclear. METHODS The expression profiles of mRNAs, lncRNAs and circRNAs in mid-segments of chicken small intestines at 108 h post-infection (pi) with E. necatrix were analyzed by using the RNA-seq technique. RESULTS After strict filtering of raw data, we putatively identified 49,183 mRNAs, 818 lncRNAs and 4153 circRNAs. The obtained lncRNAs were classified into four types, including 228 (27.87%) intergenic, 67 (8.19%) intronic, 166 (20.29%) anti-sense and 357 (43.64%) sense-overlapping lncRNAs; of these, 571 were found to be novel. Five types were also predicted for putative circRNAs, including 180 exonic, 54 intronic, 113 antisense, 109 intergenic and 3697 sense-overlapping circRNAs. Eimeria necatrix infection significantly altered the expression of 1543 mRNAs (707 upregulated and 836 downregulated), 95 lncRNAs (49 upregulated and 46 downregulated) and 13 circRNAs (9 upregulated and 4 downregulated). Target predictions revealed that 38 aberrantly expressed lncRNAs would cis-regulate 73 mRNAs, and 1453 mRNAs could be trans-regulated by 87 differentially regulated lncRNAs. Additionally, 109 potential sponging miRNAs were also identified for 9 circRNAs. GO and KEGG enrichment analysis of target mRNAs for lncRNAs, and sponging miRNA targets and source genes for circRNAs identified associations of both lncRNAs and circRNAs with host immune defense and pathogenesis during E. necatrix infection. CONCLUSIONS To the best of our knowledge, the present study provides the first genome-wide analysis of mRNAs, lncRNAs and circRNAs in chicken small intestines infected with E. necatrix. The obtained data will offer novel clues for exploring the interaction mechanisms between chickens and Eimeria spp.
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Affiliation(s)
- Xian-Cheng Fan
- Department of Parasitology, College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, China.,Center of Animal Disease Prevention and Control of Huyi District, Xi'an, 710300, China
| | - Ting-Li Liu
- Department of Parasitology, College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, China.,State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730000, China
| | - Yi Wang
- Department of Parasitology, College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, China
| | - Xue-Mei Wu
- Department of Parasitology, College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, China
| | - Yu-Xin Wang
- Department of Parasitology, College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, China
| | - Peng Lai
- Department of Parasitology, College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, China
| | - Jun-Ke Song
- Department of Parasitology, College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, China
| | - Guang-Hui Zhao
- Department of Parasitology, College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, China.
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11
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Liu TL, Fan XC, Li YH, Yuan YJ, Yin YL, Wang XT, Zhang LX, Zhao GH. Expression Profiles of mRNA and lncRNA in HCT-8 Cells Infected With Cryptosporidium parvum IId Subtype. Front Microbiol 2018; 9:1409. [PMID: 30013528 PMCID: PMC6036261 DOI: 10.3389/fmicb.2018.01409] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 06/08/2018] [Indexed: 12/03/2022] Open
Abstract
Cryptosporidium parvum is one of the most important enteric protozoan pathogens, responsible for severe diarrhea in immunocompromised human and livestock. However, few effective agents were available for controlling this parasite. Accumulating evidences suggest that long non-coding RNA (lncRNA) played key roles in many diseases through regulating the gene expression. Here, the expression profiles of lncRNAs and mRNAs were analyzed in HCT-8 cells infected with C. parvum IId subtype using microarray assay. A total of 821 lncRNAs and 1,349 mRNAs were differentially expressed in infected cells at 24 h post infection (pi). Of them, all five types of lncRNAs were identified, including 22 sense, 280 antisense, 312 intergenic, 44 divergent, 33 intronic lncRNAs, and 130 lncRNAs that were not found the relationship with mRNAs’ location. Additionally, real-time polymerase chain reactions of 10 lncRNAs and 10 mRNAs randomly selected were successfully confirmed the microarray results. The co-expression and target prediction analysis indicated that 27 mRNAs were cis-regulated by 29 lncRNAs and 109 were trans-regulated by 114 lncRNAs. These predicted targets were enriched in several pathways involved in the interaction between host and C. parvum, e.g., hedgehog signaling pathway, Wnt signaling pathway, and tight junction, suggesting that these differentially expressed lncRNAs would play important regulating roles during the infection of C. parvum IId subtype.
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Affiliation(s)
- Ting-Li Liu
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Xian-Chen Fan
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Yun-Hui Li
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Ya-Jie Yuan
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Yan-Ling Yin
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Xue-Ting Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Long-Xian Zhang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Guang-Hui Zhao
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
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12
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Ren GJ, Fan XC, Liu TL, Wang SS, Zhao GH. Genome-wide analysis of differentially expressed profiles of mRNAs, lncRNAs and circRNAs during Cryptosporidium baileyi infection. BMC Genomics 2018; 19:356. [PMID: 29747577 PMCID: PMC5946474 DOI: 10.1186/s12864-018-4754-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 05/02/2018] [Indexed: 01/17/2023] Open
Abstract
Background Cryptosporidium baileyi is the most common Cryptosporidium species in birds. However, effective prevention measures and treatment for C. baileyi infection were still not available. Long non-coding RNAs (lncRNAs) and circular RNAs (circRNAs) play important roles in regulating occurrence and progression of many diseases and are identified as effective biomarkers for diagnosis and prognosis of several diseases. In the present study, the expression profiles of host mRNAs, lncRNAs and circRNAs associated with C. baileyi infection were investigated for the first time. Results The tracheal tissues of experimental (C. baileyi infection) and control chickens were collected for deep RNA sequencing, and 545,479,934 clean reads were obtained. Of them, 1376 novel lncRNAs were identified, including 1161 long intergenic non-coding RNAs (lincRNAs) and 215 anti-sense lncRNAs. A total of 124 lncRNAs were found to be significantly differentially expressed between the experimental and control groups. Additionally, 14,698 mRNAs and 9085 circRNAs were identified, and significantly different expressions were observed for 1317 mRNAs and 104 circRNAs between two groups. Bioinformatic analyses of gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway for their targets and source genes suggested that these dysregulated genes may be involved in the interaction between the host and C. baileyi. Conclusions The present study revealed the expression profiles of mRNAs, lncRNAs and circRNAs during C. baileyi infection for the first time, and sheds lights on the roles of lncRNAs and circRNAs underlying the pathogenesis of Cryptosporidium infection. Electronic supplementary material The online version of this article (10.1186/s12864-018-4754-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Guan-Jing Ren
- Department of Parasitology, College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, China
| | - Xian-Cheng Fan
- Department of Parasitology, College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, China
| | - Ting-Li Liu
- Department of Parasitology, College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, China
| | - Sha-Sha Wang
- Department of Parasitology, College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, China
| | - Guang-Hui Zhao
- Department of Parasitology, College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, China.
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13
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Nunes S, Silva IB, Ampuero MR, de Noronha ALL, de Souza LCL, Correia TC, Khouri R, Boaventura VS, Barral A, Ramos PIP, Brodskyn C, Oliveira PRS, Tavares NM. Integrated Analysis Reveals That miR-193b, miR-671, and TREM-1 Correlate With a Good Response to Treatment of Human Localized Cutaneous Leishmaniasis Caused by Leishmania braziliensis. Front Immunol 2018; 9:640. [PMID: 29670621 PMCID: PMC5893808 DOI: 10.3389/fimmu.2018.00640] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 03/14/2018] [Indexed: 12/15/2022] Open
Abstract
Localized cutaneous leishmaniasis (LCL) is a chronic disease characterized by ulcerated skin lesion(s) and uncontrolled inflammation. The mechanisms underlying the pathogenesis of LCL are not completely understood, and little is known about posttranscriptional regulation during LCL. MicroRNAs (miRNAs) are non-coding small RNAs that regulate gene expression and can be implicated in the pathogenesis of LCL. We investigated the involvement of miRNAs and their targets genes in human LCL using publicly available transcriptome data sets followed by ex vivo validation. Initial analysis highlighted that miRNA expression is altered during LCL, as patients clustered separately from controls. Joint analysis identified eight high confidence miRNAs that had altered expression (−1.5 ≤ fold change ≥ 1.5; p < 0.05) between cutaneous ulcers and uninfected skin. We found that the expression of miR-193b and miR-671 are greatly associated with their target genes, CD40 and TNFR, indicating the important role of these miRNAs in the expression of genes related to the inflammatory response observed in LCL. In addition, network analysis revealed that miR-193b, miR-671, and TREM1 correlate only in patients who show faster wound healing (up to 59 days) and not in patients who require longer cure times (more than 60 days). Given that these miRNAs are associated with control of inflammation and healing time, our findings reveal that they might influence the pathogenesis and prognosis of LCL.
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Affiliation(s)
- Sara Nunes
- Oswaldo Cruz Foundation, Gonçalo Moniz Institute, FIOCRUZ, Salvador, Brazil.,Federal University of Bahia, Salvador, Brazil
| | - Icaro Bonyek Silva
- Oswaldo Cruz Foundation, Gonçalo Moniz Institute, FIOCRUZ, Salvador, Brazil.,Federal University of Bahia, Salvador, Brazil
| | - Mariana Rosa Ampuero
- Oswaldo Cruz Foundation, Gonçalo Moniz Institute, FIOCRUZ, Salvador, Brazil.,Federal University of Bahia, Salvador, Brazil
| | | | | | | | - Ricardo Khouri
- Oswaldo Cruz Foundation, Gonçalo Moniz Institute, FIOCRUZ, Salvador, Brazil.,Federal University of Bahia, Salvador, Brazil
| | - Viviane Sampaio Boaventura
- Oswaldo Cruz Foundation, Gonçalo Moniz Institute, FIOCRUZ, Salvador, Brazil.,Federal University of Bahia, Salvador, Brazil
| | - Aldina Barral
- Oswaldo Cruz Foundation, Gonçalo Moniz Institute, FIOCRUZ, Salvador, Brazil.,Federal University of Bahia, Salvador, Brazil
| | - Pablo Ivan Pereira Ramos
- Oswaldo Cruz Foundation, Gonçalo Moniz Institute, FIOCRUZ, Salvador, Brazil.,Centre for Data and Knowledge Integration for Health (CIDACS), FIOCRUZ, Salvador, Brazil
| | - Cláudia Brodskyn
- Oswaldo Cruz Foundation, Gonçalo Moniz Institute, FIOCRUZ, Salvador, Brazil.,Federal University of Bahia, Salvador, Brazil
| | - Pablo Rafael Silveira Oliveira
- Federal University of Bahia, Salvador, Brazil.,Centre for Data and Knowledge Integration for Health (CIDACS), FIOCRUZ, Salvador, Brazil
| | - Natalia Machado Tavares
- Oswaldo Cruz Foundation, Gonçalo Moniz Institute, FIOCRUZ, Salvador, Brazil.,Federal University of Bahia, Salvador, Brazil
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14
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Ming Z, Zhou R, Chen XM. Regulation of host epithelial responses toCryptosporidiuminfection by microRNAs. Parasite Immunol 2017; 39. [DOI: 10.1111/pim.12408] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Accepted: 12/02/2016] [Indexed: 12/13/2022]
Affiliation(s)
- Z. Ming
- Department of Medical Parasitology; School of Basic Medical Sciences; Wuhan University; Hubei China
- Department of Medical Microbiology and Immunology; Creighton University School of Medicine; Omaha NE USA
| | - R. Zhou
- Department of Medical Parasitology; School of Basic Medical Sciences; Wuhan University; Hubei China
| | - X.-M. Chen
- Department of Medical Microbiology and Immunology; Creighton University School of Medicine; Omaha NE USA
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15
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Ludington JG, Ward HD. Systemic and Mucosal Immune Responses to Cryptosporidium-Vaccine Development. CURRENT TROPICAL MEDICINE REPORTS 2015; 2:171-180. [PMID: 26279971 PMCID: PMC4535728 DOI: 10.1007/s40475-015-0054-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Cryptosporidium spp is a major cause of diarrheal disease worldwide, particularly in malnourished children and untreated AIDS patients in developing countries in whom it can cause severe, chronic and debilitating disease. Unfortunately, there is no consistently effective drug for these vulnerable populations and no vaccine, partly due to a limited understanding of both the parasite and the host immune response. In this review, we will discuss our current understanding of the systemic and mucosal immune responses to Cryptosporidium infection, discuss the feasibility of developing a Cryptosporidium vaccine and evaluate recent advances in Cryptosporidium vaccine development strategies.
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Affiliation(s)
- Jacob G. Ludington
- Tufts University Sackler School of Graduate Biomedical Sciences and Division of Geographic Medicine and Infectious Diseases, Tufts Medical Center
| | - Honorine D. Ward
- Tufts University Sackler School of Graduate Biomedical Sciences and Division of Geographic Medicine and Infectious Diseases, Tufts Medical Center
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16
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Guesdon W, Auray G, Pezier T, Bussière FI, Drouet F, Le Vern Y, Marquis M, Potiron L, Rabot S, Bruneau A, Werts C, Laurent F, Lacroix-Lamandé S. CCL20 Displays Antimicrobial Activity Against Cryptosporidium parvum, but Its Expression Is Reduced During Infection in the Intestine of Neonatal Mice. J Infect Dis 2015; 212:1332-40. [PMID: 25838265 DOI: 10.1093/infdis/jiv206] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2014] [Accepted: 03/13/2015] [Indexed: 12/13/2022] Open
Abstract
CCL20 is a chemokine with antimicrobial activity. We investigated its expression and role during neonatal cryptosporidiosis, a worldwide protozoan enteric disease leading to severe diarrhea. Surprisingly, during infection by Cryptosporidium parvum, CCL20 production by the intestine of neonatal mice is reduced by a mechanism independent both of the enteric flora and of interferon γ, a key cytokine for the resolution of this infection. However, oral administration of recombinant CCL20 to neonatal mice significantly reduced the parasite load by a mechanism that was independent of immune cell recruitment and occurred instead by direct cytolytic activity on free stages of the parasite. MiR21 functionally targets CCL20 and is upregulated during the infection, thus contributing to the downregulation of the chemokine. Our findings demonstrate for the first time the direct antiparasitic activity of CCL20 against an enteric protozoan and its downregulation during C. parvum infection, which is detrimental to parasite clearance.
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Affiliation(s)
- William Guesdon
- INRA Val de Loire, UMR1282 Infectiologie et Santé Publique, Nouzilly Université François Rabelais, UMR1282 Infectiologie et Santé Publique, Tours
| | - Gaël Auray
- INRA Val de Loire, UMR1282 Infectiologie et Santé Publique, Nouzilly Université François Rabelais, UMR1282 Infectiologie et Santé Publique, Tours
| | - Tiffany Pezier
- INRA Val de Loire, UMR1282 Infectiologie et Santé Publique, Nouzilly Université François Rabelais, UMR1282 Infectiologie et Santé Publique, Tours
| | - Françoise I Bussière
- INRA Val de Loire, UMR1282 Infectiologie et Santé Publique, Nouzilly Université François Rabelais, UMR1282 Infectiologie et Santé Publique, Tours
| | - Françoise Drouet
- INRA Val de Loire, UMR1282 Infectiologie et Santé Publique, Nouzilly Université François Rabelais, UMR1282 Infectiologie et Santé Publique, Tours
| | - Yves Le Vern
- INRA Val de Loire, UMR1282 Infectiologie et Santé Publique, Nouzilly Université François Rabelais, UMR1282 Infectiologie et Santé Publique, Tours INRA Val de Loire, Cytometry Platform
| | - Mathilde Marquis
- INRA Val de Loire, UMR1282 Infectiologie et Santé Publique, Nouzilly Université François Rabelais, UMR1282 Infectiologie et Santé Publique, Tours
| | - Laurent Potiron
- INRA Val de Loire, UMR1282 Infectiologie et Santé Publique, Nouzilly Université François Rabelais, UMR1282 Infectiologie et Santé Publique, Tours
| | - Sylvie Rabot
- INRA, UMR1319 Micalis AgroParisTech, UMR Micalis, Jouy-en-Josas
| | - Aurelia Bruneau
- INRA, UMR1319 Micalis AgroParisTech, UMR Micalis, Jouy-en-Josas
| | - Catherine Werts
- Unité Biologie et Génétique de la Paroi Bactérienne, Institut Pasteur, Paris, France
| | - Fabrice Laurent
- INRA Val de Loire, UMR1282 Infectiologie et Santé Publique, Nouzilly Université François Rabelais, UMR1282 Infectiologie et Santé Publique, Tours
| | - Sonia Lacroix-Lamandé
- INRA Val de Loire, UMR1282 Infectiologie et Santé Publique, Nouzilly Université François Rabelais, UMR1282 Infectiologie et Santé Publique, Tours
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