1
|
Mohamed Alipiah N, Salleh A, Sarizan NM, Ikhsan N. Molecular characterization and gene expression of pattern recognition receptors in brown-marbled grouper (Epinephelus fuscoguttatus) fingerlings responding to vibriosis infection. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2024; 161:105253. [PMID: 39168397 DOI: 10.1016/j.dci.2024.105253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 08/01/2024] [Accepted: 08/18/2024] [Indexed: 08/23/2024]
Abstract
The pathogen recognition system involves receptors and genes that play a crucial role in activating innate immune response in brown-marbled grouper (Epinephelus fuscoguttatus) as a control agent against various infections including vibriosis. Here, we report the molecular cloning of partial open reading frames, sequences characterization, and expression profiles of Pattern Recognition Receptors (PRRs) in brown-marbled grouper. The PRRs, namely pglyrp5, tlr5, ctlD, and ctlE in brown-marbled grouper, possess conserved domains and showed shared evolutionary relationships with other fishes, humans, mammals, birds, reptilians, amphibians, and insects. In infection experiments, up to 50% mortality was found in brown-marbled grouper fingerlings infected with Vibrio alginolyticus compared to 27% mortality infected Vibrio parahaemolyticus and 100% survival of control groups. It is also demonstrated that all four PRRs had higher expression in samples infected with V. alginolyticus compared to V. parahaemolyticus. This PRRs gene expression analysis revealed that all four PRRs expressed rapidly at 4-h post-inoculation even though the Vibrio count was only detected earliest at 12-h post-inoculation in samples. The highest expression recorded was from V. alginolyticus inoculated fish spleen with up to 73-fold change for pglyrp5 gene, followed by 14 to 38-fold expression for the same treatment in spleen, head kidney, and blood samples for other PRRs, namely tlr5, ctlD, and ctlE genes. Meanwhile less than a 10% increase in expression of all four genes was detected in spleen, head kidney, and blood samples inoculated with V. parahaemolyticus. These findings indicated that pglyrp5, tlr5, ctlD, and ctlE play important roles in the early immune response to vibriosis infected, brown-marbled grouper fingerlings.
Collapse
Affiliation(s)
- Norfarrah Mohamed Alipiah
- Aquatic Animal Health and Therapeutics Laboratory, Institute of Bioscience, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.
| | - Annas Salleh
- Aquatic Animal Health and Therapeutics Laboratory, Institute of Bioscience, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia; Department of Veterinary Laboratory Diagnostic, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| | - Nur Maisarah Sarizan
- Faculty of Applied Sciences, Universiti Teknologi MARA, Arau Campus, Perlis Branch, 02600, Arau, Perlis, Malaysia
| | - Natrah Ikhsan
- Aquatic Animal Health and Therapeutics Laboratory, Institute of Bioscience, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia; Department of Aquaculture, Faculty of Agriculture, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia
| |
Collapse
|
2
|
Xu Y, Ding L, Zhang Y, Ren S, Li J, Liu F, Sun W, Chen Z, Yu J, Wu J. Research progress on the pattern recognition receptors involved in porcine reproductive and respiratory syndrome virus infection. Front Cell Infect Microbiol 2024; 14:1428447. [PMID: 39211800 PMCID: PMC11358126 DOI: 10.3389/fcimb.2024.1428447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Accepted: 07/29/2024] [Indexed: 09/04/2024] Open
Abstract
Porcine reproductive and respiratory syndrome (PRRS) is one of the most economically devastating infectious diseases of pigs globally. The pathogen, porcine reproductive and respiratory syndrome virus (PRRSV), is an enveloped positive-stranded RNA virus, which is considered to be the key triggers for the activation of effective innate immunity through pattern recognition receptor (PRR)-dependent signaling pathways. Toll-like receptors (TLRs), RIG-I-like receptors (RLRs), C-type lectin receptors (CLRs), NOD-like receptors (NLRs) and Cytoplasmic DNA receptors (CDRs) are used as PRRs to identify distinct but overlapping microbial components. The innate immune system has evolved to recognize RNA or DNA molecules from microbes through pattern recognition receptors (PRRs) and to induce defense response against infections, including the production of type I interferon (IFN-I) and inflammatory cytokines. However, PRRSV is capable of continuous evolution through gene mutation and recombination to evade host immune defenses and exploit host cell mechanisms to synthesize and transport its components, thereby facilitating successful infection and replication. This review presents the research progress made in recent years in the study of these PRRs and their associated adapters during PRRSV infection.
Collapse
Affiliation(s)
- Yulin Xu
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, China
- Key Laboratory of Livestock and Poultry Multi-omics of Ministry of Agriculture and Rural Affairs (MARA), Jinan, China
| | - Luogang Ding
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, China
- Key Laboratory of Livestock and Poultry Multi-omics of Ministry of Agriculture and Rural Affairs (MARA), Jinan, China
| | - Yuyu Zhang
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, China
- Key Laboratory of Livestock and Poultry Multi-omics of Ministry of Agriculture and Rural Affairs (MARA), Jinan, China
| | - Sufang Ren
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, China
- Key Laboratory of Livestock and Poultry Multi-omics of Ministry of Agriculture and Rural Affairs (MARA), Jinan, China
| | - Jianda Li
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, China
- Key Laboratory of Livestock and Poultry Multi-omics of Ministry of Agriculture and Rural Affairs (MARA), Jinan, China
| | - Fei Liu
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, China
- Key Laboratory of Livestock and Poultry Multi-omics of Ministry of Agriculture and Rural Affairs (MARA), Jinan, China
| | - Wenbo Sun
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, China
- Key Laboratory of Livestock and Poultry Multi-omics of Ministry of Agriculture and Rural Affairs (MARA), Jinan, China
| | - Zhi Chen
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, China
- Key Laboratory of Livestock and Poultry Multi-omics of Ministry of Agriculture and Rural Affairs (MARA), Jinan, China
| | - Jiang Yu
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, China
- Key Laboratory of Livestock and Poultry Multi-omics of Ministry of Agriculture and Rural Affairs (MARA), Jinan, China
| | - Jiaqiang Wu
- Shandong Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, China
- Key Laboratory of Livestock and Poultry Multi-omics of Ministry of Agriculture and Rural Affairs (MARA), Jinan, China
| |
Collapse
|
3
|
Zhang L, Wei C, Guo Y, Hu J, Wang M. Molecular identification and functional characterization of a C-type lectin gene in Meretrix meretrix. FISH & SHELLFISH IMMUNOLOGY 2024; 153:109833. [PMID: 39147178 DOI: 10.1016/j.fsi.2024.109833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2024] [Revised: 08/11/2024] [Accepted: 08/12/2024] [Indexed: 08/17/2024]
Abstract
C-type lectins (CTLs) are a kind of Ca2+-dependent immunoreactive factors, which participated in pathogens recognition and defense. The present study identified a new CTL from hard clam Meretrix meretrix (designated as MmCTL4). The full-length of MmCTL4 cDNA was 608 bp, encoding a presumed signal peptide of 19 bp and a carbohydrate recognition domain (CRD) of 131 bp. The tertiary structure of recombinant MmCTL4 protein (rMmCTL4) was the typical long double-ring structure with three conserved disulfide bonds, and the motifs in Ca2+-binding sites of MmCTL4 were QPN and WSD. The SYBR Green real-time PCR analysis indicated that MmCTL4 was widely expressed in the hemocytes, hepatopancreas and mantle of healthy clams. After Vibrio splendidus stimulation, the temporal expression profile of MmCTL4 mRNA in hemocytes and hepatopancreas increased by 7.8-fold at 6 hpi and 3.9-fold at 12 hpi, respectively. The cDNA fragments encoding MmCTL4 were recombined into pET-32a (+) vectors, and transformed into Escherichia coli BL21 (DE3). The rMmCTL4 with the presence of Ca2+ performed obvious hemagglutination activity, and could agglutinate E. coli, Bacillus subtilis, and Staphylococcus aureus, while it only weakly agglutinate Vibrio parahaemolyticus and fungi P. pastoris. The agglutination activity of rMmCTL4 were significantly inhibited by D-mannose, D-xylose, D-lactose, maltose and lipopolysaccharides. These results indicated that MmCTL4, as a class of typical pattern recognition receptors (PRRs), could protect the host against pathogen invasion in the innate immunity of clams.
Collapse
Affiliation(s)
- Lu Zhang
- Hainan Key Laboratory of Tropical Aquatic Germplasm, Sanya Oceanographic Institution, Ocean University of China, Sanya 572024, China; MOE Key Laboratory of Marine Genetics and Breeding, Ocean University of China, Qingdao 266003, China
| | - Cun Wei
- Hainan Key Laboratory of Tropical Aquatic Germplasm, Sanya Oceanographic Institution, Ocean University of China, Sanya 572024, China; MOE Key Laboratory of Marine Genetics and Breeding, Ocean University of China, Qingdao 266003, China
| | - Ying Guo
- MOE Key Laboratory of Marine Genetics and Breeding, Ocean University of China, Qingdao 266003, China.
| | - Jingjie Hu
- Hainan Key Laboratory of Tropical Aquatic Germplasm, Sanya Oceanographic Institution, Ocean University of China, Sanya 572024, China; MOE Key Laboratory of Marine Genetics and Breeding, Ocean University of China, Qingdao 266003, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China
| | - Mengqiang Wang
- Hainan Key Laboratory of Tropical Aquatic Germplasm, Sanya Oceanographic Institution, Ocean University of China, Sanya 572024, China; MOE Key Laboratory of Marine Genetics and Breeding, Ocean University of China, Qingdao 266003, China; Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 511458, China.
| |
Collapse
|
4
|
Wang C, Wang S, Ma X, Yao X, Zhan K, Wang Z, He D, Zuo W, Han S, Zhao G, Cao B, Zhao J, Bian X, Wang J. P-selectin Facilitates SARS-CoV-2 Spike 1 Subunit Attachment to Vesicular Endothelium and Platelets. ACS Infect Dis 2024; 10:2656-2667. [PMID: 38912949 DOI: 10.1021/acsinfecdis.3c00728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/25/2024]
Abstract
SARS-CoV-2 infection starts from the association of its spike 1 (S1) subunit with sensitive cells. Vesicular endothelial cells and platelets are among the cell types that bind SARS-CoV-2, but the effectors that mediate viral attachment on the cell membrane have not been fully elucidated. Herein, we show that P-selectin (SELP), a biomarker for endothelial dysfunction and platelet activation, can facilitate the attachment of SARS-CoV-2 S1. Since we observe colocalization of SELP with S1 in the lung tissues of COVID-19 patients, we perform molecular biology experiments on human umbilical vein endothelial cells (HUVECs) to confirm the intermolecular interaction between SELP and S1. SELP overexpression increases S1 recruitment to HUVECs and enhances SARS-CoV-2 spike pseudovirion infection. The opposite results are determined after SELP downregulation. As S1 causes endothelial inflammatory responses in a dose-dependent manner, by activating the interleukin (IL)-17 signaling pathway, SELP-induced S1 recruitment may contribute to the development of a "cytokine storm" after viral infection. Furthermore, SELP also promotes the attachment of S1 to the platelet membrane. Employment of PSI-697, a small inhibitor of SELP, markedly decreases S1 adhesion to both HUVECs and platelets. In addition to the role of membrane SELP in facilitating S1 attachment, we also discover that soluble SELP is a prognostic factor for severe COVID-19 through a meta-analysis. In this study, we identify SELP as an adhesive site for the SARS-CoV-2 S1, thus providing a potential drug target for COVID-19 treatment.
Collapse
Affiliation(s)
- Cheng Wang
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Combined Injury of PLA, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Shaobo Wang
- Department of Nephrology, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing 400037, China
| | - Xiangyu Ma
- Department of Epidemiology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Xiaohong Yao
- Institute of Pathology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Kegang Zhan
- Department of Epidemiology, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Zai Wang
- Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing 100029, China
| | - Di He
- National Center for Respiratory Medicine, State Key Laboratory of Respiratory Health and Multimorbidity, National Clinical Research Center for Respiratory Diseases, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing 100029, China
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Capital Medical University, Beijing 100069, China
| | - Wenting Zuo
- National Center for Respiratory Medicine, State Key Laboratory of Respiratory Health and Multimorbidity, National Clinical Research Center for Respiratory Diseases, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing 100029, China
- China-Japan Friendship Hospital (Institute of Clinical Medical Sciences), Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Songling Han
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Combined Injury of PLA, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Gaomei Zhao
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Combined Injury of PLA, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Bin Cao
- National Center for Respiratory Medicine, State Key Laboratory of Respiratory Health and Multimorbidity, National Clinical Research Center for Respiratory Diseases, Institute of Respiratory Medicine, Chinese Academy of Medical Sciences, Department of Pulmonary and Critical Care Medicine, Center of Respiratory Medicine, China-Japan Friendship Hospital, Beijing 100029, China
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Capital Medical University, Beijing 100069, China
- China-Japan Friendship Hospital (Institute of Clinical Medical Sciences), Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
- Tsinghua University-Peking University Joint Center for Life Sciences, Beijing 100084, China
- Changping Laboratory, Beijing 102206, China
- New Cornerstone Science Laboratory, China-Japan Friendship Hospital, Beijing 100029, China
| | - Jinghong Zhao
- Department of Nephrology, Xinqiao Hospital, Third Military Medical University (Army Medical University), Chongqing 400037, China
| | - Xiuwu Bian
- Institute of Pathology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Junping Wang
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Combined Injury of PLA, College of Preventive Medicine, Third Military Medical University (Army Medical University), Chongqing 400038, China
| |
Collapse
|
5
|
Chiappa G, Fassio G, Modica MV, Oliverio M. Potential Ancestral Conoidean Toxins in the Venom Cocktail of the Carnivorous Snail Raphitoma purpurea (Montagu, 1803) (Neogastropoda: Raphitomidae). Toxins (Basel) 2024; 16:348. [PMID: 39195758 PMCID: PMC11359391 DOI: 10.3390/toxins16080348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2024] [Revised: 08/02/2024] [Accepted: 08/06/2024] [Indexed: 08/29/2024] Open
Abstract
Venomous marine gastropods of the superfamily Conoidea possess a rich arsenal of toxins, including neuroactive toxins. Venom adaptations might have played a fundamental role in the radiation of conoideans; nevertheless, there is still no knowledge about the venom of the most diversified family of the group: Raphitomidae Bellardi, 1875. In this study, transcriptomes were produced from the carcase, salivary glands, and proximal and distal venom ducts of the northeastern Atlantic species Raphitoma purpurea (Montagu, 1803). Using a gut barcoding approach, we were also able to report, for the first time, molecular evidence of a vermivorous diet for the genus. Transcriptomic analyses revealed over a hundred putative venom components (PVC), including 69 neurotoxins. Twenty novel toxin families, including some with high levels of expansion, were discovered. No significant difference was observed between the distal and proximal venom duct secretions. Peptides related to cone snail toxins (Cerm06, Pgam02, and turritoxin) and other venom-related proteins (disulfide isomerase and elevenin) were retrieved from the salivary glands. These salivary venom components may constitute ancestral adaptations for venom production in conoideans. Although often neglected, salivary gland secretions are of extreme importance for understanding the evolutionary history of conoidean venom.
Collapse
Affiliation(s)
- Giacomo Chiappa
- Department of Biology and Biotechnologies “Charles Darwin”, Sapienza University of Rome, Viale dell’Università 32, 00185 Rome, Italy; (G.F.); (M.O.)
| | - Giulia Fassio
- Department of Biology and Biotechnologies “Charles Darwin”, Sapienza University of Rome, Viale dell’Università 32, 00185 Rome, Italy; (G.F.); (M.O.)
| | - Maria Vittoria Modica
- Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, Via Gregorio Allegri 1, 00198 Rome, Italy;
| | - Marco Oliverio
- Department of Biology and Biotechnologies “Charles Darwin”, Sapienza University of Rome, Viale dell’Università 32, 00185 Rome, Italy; (G.F.); (M.O.)
| |
Collapse
|
6
|
Huo W, Qin L, Guo W, Zhang X, Xia X. Characteristics and functional analysis of a novel mannose receptor in Penaeus vannamei. FISH & SHELLFISH IMMUNOLOGY 2024; 153:109820. [PMID: 39117127 DOI: 10.1016/j.fsi.2024.109820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 08/03/2024] [Accepted: 08/06/2024] [Indexed: 08/10/2024]
Abstract
The mannose receptor (MR) plays a key role in the innate immune system as a pattern recognition receptor. Here, a novel type of mannose receptor, named PvMR2, was identified from Penaeus vannamei (P. vannamei). The PvMR2 coding sequence (CDS) obtained was 988 base pairs in length, encoding a protein consisting of 328 amino acids. This protein includes a signal peptide and two classical C-type lectin domains (CTLD). Quantitative real-time PCR showed that PvMR2 was distributed in all detected tissues, with the highest levels in the intestines and stomach. Following a bacterial challenge with Vibrio anguillarum (V. anguillarum), PvMR2 showed significant up-regulation in both the intestines and stomach of shrimp. To validate the function of PvMR2, recombinant proteins were extracted and purified using a His-tag. The resulting rPvMR2 demonstrated binding capability with lipopolysaccharides (LPS) and peptidoglycan (PGN) in a dose-dependent manner, affirming its binding affinity. The purified rPvMR2 demonstrated calcium-independent binding activity towards both Gram-positive bacteria (V. anguilliarum and Vibrio parahaemolyticus) and Gram-negative bacteria (Escherichia coli and Aeromonas Veronii). Antibacterial assays confirmed that rPvMR2 inhibits bacterial growth. Intestinal adhesion and adhesion inhibition experiments confirmed that the rPvMR2 can be used to reduce the adhesion capacity of harmful bacteria in the gut. Phagocytosis experiments have shown that rPvMR2 promotes phagocytosis in hemocytes and protects the host from external infection. Treatment with recombinant PvMR2 significantly bolstered bacterial clearance within the hemolymph and markedly augmented shrimp survival post-infection with V. anguillarum. These results suggest that PvMR2 has agglutination, growth inhibition, adhesion inhibition, clearance promotion, and phagocytosis effects on harmful bacteria, and plays a crucial role in the antimicrobial immune response of P. vannamei.
Collapse
Affiliation(s)
- Weiran Huo
- Molecular and Genetic Laboratory, College of Life Science, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Lu Qin
- Molecular and Genetic Laboratory, College of Life Science, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Wanwan Guo
- Molecular and Genetic Laboratory, College of Life Science, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Xiaowen Zhang
- Molecular and Genetic Laboratory, College of Life Science, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Xiaohua Xia
- Molecular and Genetic Laboratory, College of Life Science, Henan Normal University, Xinxiang, Henan, 453007, China.
| |
Collapse
|
7
|
Ren Q, Huang X. The first report of a C-type lectin contains a CLIP domain involved in antibacterial defense in Macrobrachium nipponense. Int J Biol Macromol 2024; 275:133705. [PMID: 38972646 DOI: 10.1016/j.ijbiomac.2024.133705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 07/02/2024] [Accepted: 07/04/2024] [Indexed: 07/09/2024]
Abstract
We identified a novel C-type lectin (CTL) from Macrobrachium nipponense, designated as Mn-clip-Lec. It consists of 1315 bp with an open reading frame of 1098 bp, encoding a polypeptide of 365 amino acids. Mn-clip-Lec contains 6 exons and 5 introns. Mn-clip-Lec possessed a CLIP domain at the N-terminal and two carbohydrate recognition domains at the C-terminal. Interaction between Mn-clip-Lec and MnLec was found by Yeast two-hybrid analysis. The expressions of Mn-clip-Lec, MnLec, prophenoloxidase (proPO)-activating system-associated genes (MnPPAF, MnPPAE, and MnPO), and antimicrobial peptides (AMPs) (MnALF and MnCRU) were up-regulated after the challenge with Staphylococcus aureus. RNA interference (RNAi)-mediated suppression of the Mn-clip-Lec and MnLec genes in S. aureus-challenged prawns reduced the transcripts of MnPPAF, MnPPAE, MnPO, MnALF and MnCRU. Knockdown of Mn-clip-Lec and MnLec resulted in decrease in PO activity in M. nipponense infected with S. aureus. The recombinant Mn-clip-Lec (rMn-clip-Lec) protein bound all tested bacteria and agglutinated S. aureus. A sugar-binding assay revealed that rMn-clip-Lec could bind to LPS or PGN. rMn-clip-Lec accelerated the clearance of S. aureus in vivo. Our findings suggest that Mn-clip-Lec and its interacting MnLec play important roles in the induction of the proPO system and AMPs expression in M. nipponense during bacterial infection.
Collapse
Affiliation(s)
- Qian Ren
- School of Marine Sciences, Nanjing University of Information Science & Technology, Nanjing 210044, Jiangsu Province, PR China.
| | - Xin Huang
- Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, College of Marine Science and Engineering, Nanjing Normal University, Nanjing 210023, Jiangsu Province, PR China
| |
Collapse
|
8
|
Singh L, Singh S, Singh DD. A Machine Learning Approach to Identify C Type Lectin Domain (CTLD) Containing Proteins. Protein J 2024; 43:718-725. [PMID: 39068630 DOI: 10.1007/s10930-024-10224-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/07/2024] [Indexed: 07/30/2024]
Abstract
Lectins are sugar interacting proteins which bind specific glycans reversibly and have ubiquitous presence in all forms of life. They have diverse biological functions such as cell signaling, molecular recognition, etc. C-type lectins (CTL) are a group of proteins from the lectin family which have been studied extensively in animals and are reported to be involved in immune functions, carcinogenesis, cell signaling, etc. The carbohydrate recognition domain (CRD) in CTL has a highly variable protein sequence and proteins carrying this domain are also referred to as C-type lectin domain containing proteins (CTLD). Because of this low sequence homology, identification of CTLD from hypothetical proteins in the sequenced genomes using homology based programs has limitations. Machine learning (ML) tools use characteristic features to identify homologous sequences and it has been used to develop a tool for identification of CTLD. Initially 500 sequences of well annotated CTLD and 500 sequences of non CTLD were used in developing the machine learning model. The classifier program Linear SVC from sci kit library of python was used and characteristic features in CTLD sequences like dipeptide and tripeptide composition were used as training attributes in various classifiers. A precision, recall and multiple correlation coefficient (MCC) value of 0.92, 0.91 and 0.82 respectively were obtained when tested on external test set. On fine tuning of the parameters like kernel, C value, gamma, degree and increasing number of non CTLD sequences there was improvement in precision, recall and MCC and the corresponding values were 0.99, 0.99 and 0.96. New CTLD have also been identified in the hypothetical segment of human genome using the trained model. The tool is available on our local server for interested users.
Collapse
Affiliation(s)
- Lovepreet Singh
- Department of Biotechnology, Panjab University, Sector-25, Chandigarh, 160014, India
| | - Sukhwinder Singh
- University Institute of Engineering & Technology, Panjab University, Sector-25, Chandigarh, 160014, India
| | - Desh Deepak Singh
- Department of Biotechnology, Panjab University, Sector-25, Chandigarh, 160014, India.
| |
Collapse
|
9
|
Cui X, Jiang Z, Xu J, Yu Y, Liu Q, Ren Q, Wang L, Wan X, Huang X. Immune function of a C-type lectin with long tandem repeats and abundant threonine in the ridgetail white prawn Exopalaemon carinicauda. FISH & SHELLFISH IMMUNOLOGY 2024; 151:109721. [PMID: 38917950 DOI: 10.1016/j.fsi.2024.109721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 06/17/2024] [Accepted: 06/22/2024] [Indexed: 06/27/2024]
Abstract
C-type lectins (CTLs) are an important class of pattern recognition receptors (PRRs) that exhibit structural and functional diversity in invertebrates. Repetitive DNA sequences are ubiquitous in eukaryotic genomes, representing distinct modes of genome evolution and promoting new gene generation. Our study revealed a new CTL that is composed of two long tandem repeats, abundant threonine, and one carbohydrate recognition domain (CRD) in Exopalaemon carinicauda and has been designated EcTR-CTL. The full-length cDNA of EcTR-CTL was 1242 bp long and had an open reading frame (ORF) of 999 bp that encoded a protein of 332 amino acids. The genome structure of EcTR-CTL contains 4 exons and 3 introns. The length of each repeat unit in EcTR-CTL was 198 bp, which is different from the short tandem repeats reported previously in prawns and crayfish. EcTR-CTL was abundantly expressed in the intestine and hemocytes. After Vibrio parahaemolyticus and white spot syndrome virus (WSSV) challenge, the expression level of EcTR-CTL in the intestine was upregulated. Knockdown of EcTR-CTL downregulated the expression of anti-lipopolysaccharide factor, crustin, and lysozyme during Vibrio infection. The recombinant CRD of EcTR-CTL (rCRD) could bind to bacteria, lipopolysaccharides, and peptidoglycans. Additionally, rCRD can directly bind to WSSV. These findings indicate that 1) CTLs with tandem repeats may be ubiquitous in crustaceans, 2) EcTR-CTL may act as a PRR to participate in the innate immune defense against bacteria via nonself-recognition and antimicrobial peptide regulation, and 3) EcTR-CTL may play a positive or negative role in the process of WSSV infection by capturing virions.
Collapse
Affiliation(s)
- Xinyi Cui
- Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, College of Marine Science and Engineering, Nanjing Normal University, Nanjing, Jiangsu Province, 210023, China
| | - Zilin Jiang
- Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, College of Marine Science and Engineering, Nanjing Normal University, Nanjing, Jiangsu Province, 210023, China
| | - Juntao Xu
- Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, College of Marine Science and Engineering, Nanjing Normal University, Nanjing, Jiangsu Province, 210023, China
| | - Yunhao Yu
- Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, College of Marine Science and Engineering, Nanjing Normal University, Nanjing, Jiangsu Province, 210023, China
| | - Qingchuan Liu
- Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, College of Marine Science and Engineering, Nanjing Normal University, Nanjing, Jiangsu Province, 210023, China
| | - Qian Ren
- School of Marine Sciences, Nanjing University of Information Science & Technology, Nanjing, Jiangsu Province, 210044, China
| | - Libao Wang
- Institute of Oceanology & Marine Fisheries, Nantong, Jiangsu Province, 226007, China.
| | - Xihe Wan
- Institute of Oceanology & Marine Fisheries, Nantong, Jiangsu Province, 226007, China.
| | - Xin Huang
- Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, College of Marine Science and Engineering, Nanjing Normal University, Nanjing, Jiangsu Province, 210023, China.
| |
Collapse
|
10
|
Horackova K, Zemankova P, Nehasil P, Vocka M, Hovhannisyan M, Matejkova K, Janatova M, Cerna M, Kleiblova P, Jelinkova S, Stastna B, Just P, Dolezalova T, Nemcova B, Urbanova M, Koudova M, Hazova J, Machackova E, Foretova L, Stranecky V, Zikan M, Kleibl Z, Soukupova J. A comprehensive analysis of germline predisposition to early-onset ovarian cancer. Sci Rep 2024; 14:16183. [PMID: 39003285 PMCID: PMC11246516 DOI: 10.1038/s41598-024-66324-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 07/01/2024] [Indexed: 07/15/2024] Open
Abstract
The subset of ovarian cancer (OC) diagnosed ≤ 30yo represents a distinct subgroup exhibiting disparities from late-onset OC in many aspects, including indefinite germline cancer predisposition. We performed DNA/RNA-WES with HLA-typing, PRS assessment and survival analysis in 123 early-onset OC-patients compared to histology/stage-matched late-onset and unselected OC-patients, and population-matched controls. Only 6/123(4.9%) early-onset OC-patients carried a germline pathogenic variant (GPV) in high-penetrance OC-predisposition genes. Nevertheless, our comprehensive germline analysis of early-onset OC-patients revealed two divergent trajectories of potential germline susceptibility. Firstly, overrepresentation analysis highlighted a connection to breast cancer (BC) that was supported by the CHEK2 GPV enrichment in early-onset OC(p = 1.2 × 10-4), and the presumably BC-specific PRS313, which successfully stratified early-onset OC-patients from controls(p = 0.03). The second avenue pointed towards the impaired immune response, indicated by LY75-CD302 GPV(p = 8.3 × 10-4) and diminished HLA diversity compared with controls(p = 3 × 10-7). Furthermore, we found a significantly higher overall GPV burden in early-onset OC-patients compared to controls(p = 3.8 × 10-4). The genetic predisposition to early-onset OC appears to be a heterogeneous and complex process that goes beyond the traditional Mendelian monogenic understanding of hereditary cancer predisposition, with a significant role of the immune system. We speculate that rather a cumulative overall GPV burden than specific GPV may potentially increase OC risk, concomitantly with reduced HLA diversity.
Collapse
Grants
- NU20-03-00016 Ministerstvo Zdravotnictví Ceské Republiky
- NU20-03-00016 Ministerstvo Zdravotnictví Ceské Republiky
- NU20-03-00016 Ministerstvo Zdravotnictví Ceské Republiky
- NU20-03-00016 Ministerstvo Zdravotnictví Ceské Republiky
- NU20-09-00355 Ministerstvo Zdravotnictví Ceské Republiky
- RVO-VFN 00064165 Ministerstvo Zdravotnictví Ceské Republiky
- NU20-09-00355 Ministerstvo Zdravotnictví Ceské Republiky
- RVO-VFN 00064165 Ministerstvo Zdravotnictví Ceské Republiky
- RVO-VFN 00064165 Ministerstvo Zdravotnictví Ceské Republiky
- RVO-VFN 00064165 Ministerstvo Zdravotnictví Ceské Republiky
- RVO-VFN 00064165 Ministerstvo Zdravotnictví Ceské Republiky
- RVO-VFN 00064165 Ministerstvo Zdravotnictví Ceské Republiky
- RVO-VFN 00064165 Ministerstvo Zdravotnictví Ceské Republiky
- NU20-03-00016 Ministerstvo Zdravotnictví Ceské Republiky
- NU20-03-00016 Ministerstvo Zdravotnictví Ceské Republiky
- NU20-03-00016 Ministerstvo Zdravotnictví Ceské Republiky
- NU20-03-00016 Ministerstvo Zdravotnictví Ceské Republiky
- COOPERATIO Univerzita Karlova v Praze
- COOPERATIO Univerzita Karlova v Praze
- COOPERATIO Univerzita Karlova v Praze
- COOPERATIO Univerzita Karlova v Praze
- COOPERATIO Univerzita Karlova v Praze
- COOPERATIO Univerzita Karlova v Praze
- COOPERATIO Univerzita Karlova v Praze
- COOPERATIO Univerzita Karlova v Praze
- COOPERATIO Univerzita Karlova v Praze
- SVV260631 Univerzita Karlova v Praze
- COOPERATIO Univerzita Karlova v Praze
- COOPERATIO Univerzita Karlova v Praze
- COOPERATIO Univerzita Karlova v Praze
- COOPERATIO Univerzita Karlova v Praze
- COOPERATIO Univerzita Karlova v Praze
- COOPERATIO Univerzita Karlova v Praze
- LX22NPO05102 Ministerstvo Školství, Mládeže a Tělovýchovy
- LX22NPO05102 Ministerstvo Školství, Mládeže a Tělovýchovy
- LX22NPO05102 Ministerstvo Školství, Mládeže a Tělovýchovy
- LX22NPO05102 Ministerstvo Školství, Mládeže a Tělovýchovy
- LX22NPO05102 Ministerstvo Školství, Mládeže a Tělovýchovy
- LX22NPO05102 Ministerstvo Školství, Mládeže a Tělovýchovy
- LX22NPO05102 Ministerstvo Školství, Mládeže a Tělovýchovy
- LX22NPO05102 Ministerstvo Školství, Mládeže a Tělovýchovy
- LX22NPO05102 Ministerstvo Školství, Mládeže a Tělovýchovy
- LX22NPO05102 Ministerstvo Školství, Mládeže a Tělovýchovy
- The National Center for Medical Genomics (LM2023067) Ministerstvo Školství, Mládeže a Tělovýchovy
- LX22NPO05102 Ministerstvo Školství, Mládeže a Tělovýchovy
- LX22NPO05102 Ministerstvo Školství, Mládeže a Tělovýchovy
Collapse
Affiliation(s)
- Klara Horackova
- Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Petra Zemankova
- Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
- Institute of Pathological Physiology, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Petr Nehasil
- Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
- Institute of Pathological Physiology, First Faculty of Medicine, Charles University, Prague, Czech Republic
- Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Michal Vocka
- Department of Oncology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Milena Hovhannisyan
- Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Katerina Matejkova
- Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
- Department of Genetics and Microbiology, Faculty of Science, Charles University in Prague, Prague, Czech Republic
| | - Marketa Janatova
- Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Marta Cerna
- Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Petra Kleiblova
- Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
- Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Sandra Jelinkova
- Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Barbora Stastna
- Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
- Department of Biochemistry, Faculty of Science, Charles University, Prague, Czech Republic
| | - Pavel Just
- Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Tatana Dolezalova
- Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Barbora Nemcova
- Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Marketa Urbanova
- Centre for Medical Genetics and Reproductive Medicine, GENNET, Prague, Czech Republic
| | - Monika Koudova
- Centre for Medical Genetics and Reproductive Medicine, GENNET, Prague, Czech Republic
| | - Jana Hazova
- Department of Cancer Epidemiology and Genetics, Masaryk Memorial Cancer Institute, Brno, Czech Republic
| | - Eva Machackova
- Department of Cancer Epidemiology and Genetics, Masaryk Memorial Cancer Institute, Brno, Czech Republic
| | - Lenka Foretova
- Department of Cancer Epidemiology and Genetics, Masaryk Memorial Cancer Institute, Brno, Czech Republic
| | - Viktor Stranecky
- Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
| | - Michal Zikan
- Department of Gynecology and Obstetrics, Bulovka University Hospital and First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Zdenek Kleibl
- Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic
- Institute of Pathological Physiology, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Jana Soukupova
- Institute of Medical Biochemistry and Laboratory Diagnostics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Prague, Czech Republic.
| |
Collapse
|
11
|
Wang D, Dou L, Sui L, Xue Y, Xu S. Natural killer cells in cancer immunotherapy. MedComm (Beijing) 2024; 5:e626. [PMID: 38882209 PMCID: PMC11179524 DOI: 10.1002/mco2.626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 05/30/2024] [Accepted: 05/30/2024] [Indexed: 06/18/2024] Open
Abstract
Natural killer (NK) cells, as innate lymphocytes, possess cytotoxic capabilities and engage target cells through a repertoire of activating and inhibitory receptors. Particularly, natural killer group 2, member D (NKG2D) receptor on NK cells recognizes stress-induced ligands-the MHC class I chain-related molecules A and B (MICA/B) presented on tumor cells and is key to trigger the cytolytic response of NK cells. However, tumors have developed sophisticated strategies to evade NK cell surveillance, which lead to failure of tumor immunotherapy. In this paper, we summarized these immune escaping strategies, including the downregulation of ligands for activating receptors, upregulation of ligands for inhibitory receptors, secretion of immunosuppressive compounds, and the development of apoptosis resistance. Then, we focus on recent advancements in NK cell immune therapies, which include engaging activating NK cell receptors, upregulating NKG2D ligand MICA/B expression, blocking inhibitory NK cell receptors, adoptive NK cell therapy, chimeric antigen receptor (CAR)-engineered NK cells (CAR-NK), and NKG2D CAR-T cells, especially several vaccines targeting MICA/B. This review will inspire the research in NK cell biology in tumor and provide significant hope for improving cancer treatment outcomes by harnessing the potent cytotoxic activity of NK cells.
Collapse
Affiliation(s)
- DanRu Wang
- National Key Lab of Immunity and Inflammation and Institute of Immunology Naval Medical University Shanghai China
| | - LingYun Dou
- National Key Lab of Immunity and Inflammation and Institute of Immunology Naval Medical University Shanghai China
| | - LiHao Sui
- National Key Lab of Immunity and Inflammation and Institute of Immunology Naval Medical University Shanghai China
| | - Yiquan Xue
- National Key Lab of Immunity and Inflammation and Institute of Immunology Naval Medical University Shanghai China
| | - Sheng Xu
- National Key Lab of Immunity and Inflammation and Institute of Immunology Naval Medical University Shanghai China
- Shanghai Institute of Stem Cell Research and Clinical Translation Dongfang Hospital Shanghai China
| |
Collapse
|
12
|
Fan W, Chen J, Cao Y, Tan J, Li J, Wang S, Jin P, Song X. A novel C-type lectin protein (BjCTL5) interacts with apoptosis stimulating proteins of p53 (ASPP) to activate NF-κB signaling pathway in primitive chordate. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2024; 156:105166. [PMID: 38521378 DOI: 10.1016/j.dci.2024.105166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 03/13/2024] [Accepted: 03/15/2024] [Indexed: 03/25/2024]
Abstract
C-type lectin proteins (CTLs), a group of pattern recognition receptors (PRRs), play pivotal roles in immune responses. However, the signal transduction and regulation of CTLs in cephalochordates have yet to be explored. In this study, we examined the composition of CTLs in Branchiostoma japonicum, identifying a total of 272 CTLs. These CTLs underwent further analysis concerning domain arrangement, tandem and segmental duplication events. A multidomain C-type lectin gene, designated as BjCTL5, encompassing CLECT, KR, CUB, MAM, and SR domains, was the focal point of our investigation. BjCTL5 exhibits ubiquitous expression across all detected tissues and is responsive to stimulation by LPS, mannose, and poly (I:C). The recombinant protein of BjCTL5 can bind to Escherichia coli and Staphylococcus aureus, inducing their agglutination and inhibiting the proliferation of S. aureus. Yeast two-hybrid, CoIP, and confocal immunofluorescence experiments revealed the interaction between BjCTL5 and apoptosis-stimulating proteins of p53, BjASPP. Intriguingly, BjCTL5 was observed to induce the luciferase activity of the NF-κB promoter in HEK293T cells. These results suggested a potential interaction between BjCTL5 and BjASPP, implicating that they involve in the activation of the NF-κB signaling pathway, which provides an evolutionary viewpoint on NF-κB signaling pathway in primitive chordate.
Collapse
Affiliation(s)
- Wenyu Fan
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, China
| | - Jianing Chen
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, China
| | - Yunpeng Cao
- Laboratory for Comparative Genomics and Bioinformatics & Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Science, Nanjing Normal University, Nanjing 210046, China
| | - Jiabo Tan
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, China
| | - Jinlong Li
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, China
| | - Su Wang
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, China
| | - Ping Jin
- Laboratory for Comparative Genomics and Bioinformatics & Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Science, Nanjing Normal University, Nanjing 210046, China.
| | - Xiaojun Song
- School of Marine Science and Engineering, Qingdao Agricultural University, Qingdao, 266109, China.
| |
Collapse
|
13
|
Caliskan HB, Ustok FI. Implications of intracrystalline OC17 on the protection of lattice incorporated proteins. SOFT MATTER 2024; 20:4886-4894. [PMID: 38860646 DOI: 10.1039/d4sm00371c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2024]
Abstract
Biogenic CaCO3 formation is regulated by crystallization proteins during crystal growth. Interactions of proteins with nascent mineral surfaces trigger proteins to be incorporated into the crystal lattice. As a result of incorporation, these intracrystalline proteins are protected in the lattice, an example of which is ancient eggshell proteins that have persisted in CaCO3 for thousands of years even under harsh environmental conditions. OC17 is an eggshell protein known to interact with CaCO3 during eggshell formation during which OC17 becomes incorporated into the lattice. Understanding protein incorporation into CaCO3 could offer insights into protein stability inside crystals. Here, we study the protection of OC17 in the CaCO3 lattice. Using thermogravimetric analysis we show that the effect of temperature on intracrystalline proteins of eggshells is negligible below 250 °C. Next, we show that lattice incorporation protects the OC17 structure despite a heat-treatment step that is shown to denature the protein. Because incorporated proteins need to be released from crystals, we verify metal chelation as a safe crystal dissolution method to avoid protein denaturation during reconstitution. Finally, we optimize the recombinant expression of OC17 which could allow engineering OC17 for engineered intracrystalline entrapment studies.
Collapse
Affiliation(s)
- Huseyin Burak Caliskan
- University of Cambridge, Department of Engineering, Trumpington Street, CB2 1PZ Cambridge, UK.
- University of Cambridge, The Nanoscience Centre, 11 JJ Thomson Avenue, CB3 0FF Cambridge, UK
| | - Fatma Isik Ustok
- University of Cambridge, Cambridge Institute for Medical Research, Department of Haematology, The Keith Peters Building, Hills Road, CB2 0XY Cambridge, UK
| |
Collapse
|
14
|
Wang Z, Liu Y, Hu J, You X, Yang J, Zhang Y, Liu Q, Yang D. Tissue-resident trained immunity in hepatocytes protects against septic liver injury in zebrafish. Cell Rep 2024; 43:114324. [PMID: 38850536 DOI: 10.1016/j.celrep.2024.114324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 04/25/2024] [Accepted: 05/22/2024] [Indexed: 06/10/2024] Open
Abstract
Trained immunity is classically characterized by long-term functional reprogramming of innate immune cells to combat infectious diseases. Infection-induced organ injury is a common clinical severity phenotype of sepsis. However, whether the induction of trained immunity plays a role in protecting septic organ injury remains largely unknown. Here, through establishing an in vivo β-glucan training and lipopolysaccharide (LPS) challenge model in zebrafish larvae, we observe that induction of trained immunity could inhibit pyroptosis of hepatocytes to alleviate septic liver injury, with an elevated trimethyl-histone H3 lysine 4 (H3K4me3) modification that targets mitophagy-related genes. Moreover, we identify a C-type lectin domain receptor in zebrafish, named DrDectin-1, which is revealed as the orchestrator in gating H3K4me3 rewiring-mediated mitophagy activation and alleviating pyroptosis-engaged septic liver injury in vivo. Taken together, our results uncover tissue-resident trained immunity in maintaining liver homeostasis at the whole-animal level and offer an in vivo model to efficiently integrate trained immunity for immunotherapies.
Collapse
Affiliation(s)
- Zhuang Wang
- State Key Laboratory of Bioreactor Engineering, Laboratory for Aquatic Animal Diseases, East China University of Science and Technology, Shanghai 200237, China
| | - Yuanyuan Liu
- State Key Laboratory of Bioreactor Engineering, Laboratory for Aquatic Animal Diseases, East China University of Science and Technology, Shanghai 200237, China
| | - Jing Hu
- State Key Laboratory of Bioreactor Engineering, Laboratory for Aquatic Animal Diseases, East China University of Science and Technology, Shanghai 200237, China
| | - Xinwei You
- State Key Laboratory of Bioreactor Engineering, Laboratory for Aquatic Animal Diseases, East China University of Science and Technology, Shanghai 200237, China
| | - Jin Yang
- State Key Laboratory of Bioreactor Engineering, Laboratory for Aquatic Animal Diseases, East China University of Science and Technology, Shanghai 200237, China
| | - Yuanxing Zhang
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China
| | - Qin Liu
- State Key Laboratory of Bioreactor Engineering, Laboratory for Aquatic Animal Diseases, East China University of Science and Technology, Shanghai 200237, China; Shanghai Engineering Research Center of Maricultured Animal Vaccines, Shanghai 200237, China
| | - Dahai Yang
- State Key Laboratory of Bioreactor Engineering, Laboratory for Aquatic Animal Diseases, East China University of Science and Technology, Shanghai 200237, China; Shanghai Engineering Research Center of Maricultured Animal Vaccines, Shanghai 200237, China.
| |
Collapse
|
15
|
Phuong TV, Nguyen XH, Quang Lich N, Tran NN, Nguyen PN, Linh NQ. Cloning and characterization of the LvCTL genes encoding C-type lectin from white-leg shrimp ( Litopenaeus vannamei). F1000Res 2024; 12:260. [PMID: 39006306 PMCID: PMC11240081 DOI: 10.12688/f1000research.126044.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/12/2024] [Indexed: 07/16/2024] Open
Abstract
Background Lectins are carbohydrate-binding protein domains. The C-type lectin designates a requirement for calcium for binding. Proteins contain C-type lectin domains that have a diverse range of functions, including cell-cell adhesion, immune response to pathogens, and apoptosis. This study aimed to investigate the characters of LvCTL-encoding genes from white-leg shrimp ( Litopenaeus vannamei) in Central Vietnam. Methods Two PCR products (LvCTL3 and LvCTL4) were cloned and sequenced. The structure and characterization of LvCTL proteins were predicted using bioinformatics tools. Results The results showed that the LvCTL3 gene was 444 nucleotides in length and 98.87% similar to the published LvCTL3 gene (accession number: KF156943). The polypeptide sequence had 147 amino acids, which were 97.28% identical to the reference sequence (AGV68681) and the LvCTL4 gene had a length of 417 nucleotides and homology of 99.52% compared to the published gene (KM387560). The deduced polypeptide sequence had 138 amino acids, and was 100% similar to the reference sequence (AKA64754). The LvCTL3 had a molecular weight of 16.91 kDa and an isoelectric point (pI) of 4.66, while LvCTL4 had 15.75 and 4.58 kDa, respectively. The structure prediction results showed that LvCTL3 and LvCTL4 had one domain (CTLD), LvCTL3 had two α helices and nine β sheets, and LvCTL4 had two α helices and eight β sheets. Conclusions Our results provide essential information for the heterologous expression and biosynthesis production of C-type lectins.
Collapse
Affiliation(s)
- Tran Vinh Phuong
- Hue University, Hue, 49000, Vietnam
- Faculty of Fisheries, Hue University of Agriculture and Forestry, Hue University, Hue City, Thua Thien Hue, 49000, Vietnam
| | | | | | - Ngoc Nguyen Tran
- Faculty of Fisheries, Hue University of Agriculture and Forestry, Hue University, Hue City, Thua Thien Hue, 49000, Vietnam
| | - Phuoc Ngoc Nguyen
- Faculty of Fisheries, Hue University of Agriculture and Forestry, Hue University, Hue City, Thua Thien Hue, 49000, Vietnam
| | - Nguyen Quang Linh
- Faculty of Animal Sciences and Veterinary Medicine, Hue University of Agriculture and Forestry, Hue University, Hue, 49000, Vietnam
| |
Collapse
|
16
|
Mishra S, Rout M, Singh MK, Dehury B, Pati S. Classical molecular dynamics simulation identifies catechingallate as a promising antiviral polyphenol against MPOX palmitoylated surface protein. Comput Biol Chem 2024; 110:108070. [PMID: 38678726 DOI: 10.1016/j.compbiolchem.2024.108070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 04/04/2024] [Accepted: 04/06/2024] [Indexed: 05/01/2024]
Abstract
Cumulative global prevalence of the emergent monkeypox (MPX) infection in the non-endemic countries has been professed as a global public health predicament. Lack of effective MPX-specific treatments sets the baseline for designing the current study. This research work uncovers the effective use of known antiviral polyphenols against MPX viral infection, and recognises their mode of interaction with the target F13 protein, that plays crucial role in formation of enveloped virions. Herein, we have employed state-of-the-art machine learning based AlphaFold2 to predict the three-dimensional structure of F13 followed by molecular docking and all-atoms molecular dynamics (MD) simulations to investigate the differential mode of F13-polyphenol interactions. Our extensive computational approach identifies six potent polyphenols Rutin, Epicatechingallate, Catechingallate, Quercitrin, Isoquecitrin and Hyperoside exhibiting higher binding affinity towards F13, buried inside a positively charged binding groove. Intermolecular contact analysis of the docked and MD simulated complexes divulges three important residues Asp134, Ser137 and Ser321 that are observed to be involved in ligand binding through hydrogen bonds. Our findings suggest that ligand binding induces minor conformational changes in F13 to affect the conformation of the binding site. Concomitantly, essential dynamics of the six-MD simulated complexes reveals Catechin gallate, a known antiviral agent as a promising polyphenol targeting F13 protein, dominated with a dense network of hydrophobic contacts. However, assessment of biological activities of these polyphenols need to be confirmed through in vitro and in vivo assays, which may pave the way for development of new novel antiviral drugs.
Collapse
Affiliation(s)
- Sarbani Mishra
- Bioinformatics Division, ICMR-Regional Medical Research Centre, Nalco Square, Chandrasekharpur, Bhubaneswar, Odisha 751023, India
| | - Madhusmita Rout
- Bioinformatics Division, ICMR-Regional Medical Research Centre, Nalco Square, Chandrasekharpur, Bhubaneswar, Odisha 751023, India
| | - Mahender Kumar Singh
- Data Science Laboratory, National Brain Research Centre, Gurgaon, Haryana 122052, India
| | - Budheswar Dehury
- Bioinformatics Division, ICMR-Regional Medical Research Centre, Nalco Square, Chandrasekharpur, Bhubaneswar, Odisha 751023, India; Department of Bioinformatics, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal 576104, India.
| | - Sanghamitra Pati
- Bioinformatics Division, ICMR-Regional Medical Research Centre, Nalco Square, Chandrasekharpur, Bhubaneswar, Odisha 751023, India.
| |
Collapse
|
17
|
Du J, Tang Y, Chu J, Yang Q, Qian X, Wan Y, Lu Y, Zhang L, Wang W. A novel exoskeletal-derived C-type lectin facilitates phagocytosis of hemocytes in the oriental river prawn Macrobrachium nipponense. FISH & SHELLFISH IMMUNOLOGY 2024; 149:109532. [PMID: 38579977 DOI: 10.1016/j.fsi.2024.109532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 02/27/2024] [Accepted: 03/29/2024] [Indexed: 04/07/2024]
Abstract
C-type lectins (CTLs) execute critical functions in multiple immune responses of crustaceans as a member of pattern recognition receptors (PRRs) family. In this study, a novel CTL was identified from the exoskeleton of the oriental river prawn Macrobrachium nipponense (MnLec3). The full-length cDNA of MnLec3 was 1150 bp with an open reading frame of 723 bp, encoding 240 amino acids. MnLec3 protein contained a signal peptide and one single carbohydrate-recognition domain (CRD). MnLec3 transcripts were widely distributed at the exoskeleton all over the body. Significant up-regulation of MnLec3 in exoskeleton after Aeromonas hydrophila challenged suggested the involvement of MnLec3 as well as the possible function of the exoskeleton in immune response. In vitro tests with recombinant MnLec3 protein (rMnLec3) manifested that it had polysaccharide binding activity, a wide spectrum of bacterial binding activity and agglutination activity only for tested Gram-negative bacteria (Escherichia coli, Vibrio anguillarum and A. hydrophila). Moreover, rMnLec3 significantly promoted phagocytic ability of hemocytes against A. hydrophila in vivo. What's more, MnLec3 interference remarkably impaired the survivability of the prawns when infected with A. hydrophila. Collectively, these results ascertained that MnLec3 derived from exoskeleton took an essential part in immune defense of the prawns against invading bacteria as a PRR.
Collapse
Affiliation(s)
- Juan Du
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453002, Henan, China
| | - Yuanyuan Tang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453002, Henan, China
| | - Jiaye Chu
- School of Stomatology, Xinxiang Medical University, Xinxiang, 453002, Henan, China
| | - Quanli Yang
- School of Stomatology, Xinxiang Medical University, Xinxiang, 453002, Henan, China
| | - Xiaohan Qian
- School of the Third Clinical Medicine, Xinxiang Medical University, Xinxiang, 453002, Henan, China
| | - Yan Wan
- School of the Third Clinical Medicine, Xinxiang Medical University, Xinxiang, 453002, Henan, China
| | - Yuming Lu
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453002, Henan, China
| | - Limin Zhang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, 453002, Henan, China
| | - Wenfeng Wang
- College of Life Sciences, Xinxiang Medical University, Xinxiang, 453002, Henan, China.
| |
Collapse
|
18
|
Lefèbre J, Falk T, Ning Y, Rademacher C. Secondary Sites of the C-type Lectin-Like Fold. Chemistry 2024; 30:e202400660. [PMID: 38527187 DOI: 10.1002/chem.202400660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Revised: 03/23/2024] [Accepted: 03/25/2024] [Indexed: 03/27/2024]
Abstract
C-type lectins are a large superfamily of proteins involved in a multitude of biological processes. In particular, their involvement in immunity and homeostasis has rendered them attractive targets for diverse therapeutic interventions. They share a characteristic C-type lectin-like domain whose adaptability enables them to bind a broad spectrum of ligands beyond the originally defined canonical Ca2+-dependent carbohydrate binding. Together with variable domain architecture and high-level conformational plasticity, this enables C-type lectins to meet diverse functional demands. Secondary sites provide another layer of regulation and are often intricately linked to functional diversity. Located remote from the canonical primary binding site, secondary sites can accommodate ligands with other physicochemical properties and alter protein dynamics, thus enhancing selectivity and enabling fine-tuning of the biological response. In this review, we outline the structural determinants allowing C-type lectins to perform a large variety of tasks and to accommodate the ligands associated with it. Using the six well-characterized Ca2+-dependent and Ca2+-independent C-type lectin receptors DC-SIGN, langerin, MGL, dectin-1, CLEC-2 and NKG2D as examples, we focus on the characteristics of non-canonical interactions and secondary sites and their potential use in drug discovery endeavors.
Collapse
Affiliation(s)
- Jonathan Lefèbre
- Department of Pharmaceutical Sciences, University of Vienna, Vienna, Austria
- Vienna Doctoral School of Pharmaceutical, Nutritional and Sport, Sciences, University of Vienna, Vienna, Austria
- Department of Microbiology, Immunology and Genetics, University of Vienna, Max F. Perutz Labs, Vienna, Austria
| | - Torben Falk
- Department of Pharmaceutical Sciences, University of Vienna, Vienna, Austria
- Vienna Doctoral School of Pharmaceutical, Nutritional and Sport, Sciences, University of Vienna, Vienna, Austria
- Department of Microbiology, Immunology and Genetics, University of Vienna, Max F. Perutz Labs, Vienna, Austria
| | - Yunzhan Ning
- Department of Pharmaceutical Sciences, University of Vienna, Vienna, Austria
- Vienna Doctoral School of Pharmaceutical, Nutritional and Sport, Sciences, University of Vienna, Vienna, Austria
- Department of Microbiology, Immunology and Genetics, University of Vienna, Max F. Perutz Labs, Vienna, Austria
| | - Christoph Rademacher
- Department of Pharmaceutical Sciences, University of Vienna, Vienna, Austria
- Department of Microbiology, Immunology and Genetics, University of Vienna, Max F. Perutz Labs, Vienna, Austria
| |
Collapse
|
19
|
Obare LM, Temu T, Mallal SA, Wanjalla CN. Inflammation in HIV and Its Impact on Atherosclerotic Cardiovascular Disease. Circ Res 2024; 134:1515-1545. [PMID: 38781301 PMCID: PMC11122788 DOI: 10.1161/circresaha.124.323891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
People living with HIV have a 1.5- to 2-fold increased risk of developing cardiovascular disease. Despite treatment with highly effective antiretroviral therapy, people living with HIV have chronic inflammation that makes them susceptible to multiple comorbidities. Several factors, including the HIV reservoir, coinfections, clonal hematopoiesis of indeterminate potential (CHIP), microbial translocation, and antiretroviral therapy, may contribute to the chronic state of inflammation. Within the innate immune system, macrophages harbor latent HIV and are among the prominent immune cells present in atheroma during the progression of atherosclerosis. They secrete inflammatory cytokines such as IL (interleukin)-6 and tumor necrosis-α that stimulate the expression of adhesion molecules on the endothelium. This leads to the recruitment of other immune cells, including cluster of differentiation (CD)8+ and CD4+ T cells, also present in early and late atheroma. As such, cells of the innate and adaptive immune systems contribute to both systemic inflammation and vascular inflammation. On a molecular level, HIV-1 primes the NLRP3 (NLR family pyrin domain containing 3) inflammasome, leading to an increased expression of IL-1β, which is important for cardiovascular outcomes. Moreover, activation of TLRs (toll-like receptors) by HIV, gut microbes, and substance abuse further activates the NLRP3 inflammasome pathway. Finally, HIV proteins such as Nef (negative regulatory factor) can inhibit cholesterol efflux in monocytes and macrophages through direct action on the cholesterol transporter ABCA1 (ATP-binding cassette transporter A1), which promotes the formation of foam cells and the progression of atherosclerotic plaque. Here, we summarize the stages of atherosclerosis in the context of HIV, highlighting the effects of HIV, coinfections, and antiretroviral therapy on cells of the innate and adaptive immune system and describe current and future interventions to reduce residual inflammation and improve cardiovascular outcomes among people living with HIV.
Collapse
Affiliation(s)
- Laventa M. Obare
- Division of Infectious Diseases, Vanderbilt University Medical Center, Nashville, TN (L.M.O., S.A.M., C.N.W.)
| | - Tecla Temu
- Department of Pathology, Harvard Medical School, Boston, MA (T.T.)
| | - Simon A. Mallal
- Division of Infectious Diseases, Vanderbilt University Medical Center, Nashville, TN (L.M.O., S.A.M., C.N.W.)
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN (S.A.M.)
- Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN (S.A.M.)
- Institute for Immunology and Infectious Diseases, Murdoch University, WA, Western Australia (S.A.M.)
| | - Celestine N. Wanjalla
- Division of Infectious Diseases, Vanderbilt University Medical Center, Nashville, TN (L.M.O., S.A.M., C.N.W.)
| |
Collapse
|
20
|
Li ET, Ji JY, Kong WJ, Shen DX, Li C, An CJ. A C-type lectin with dual carbohydrate recognition domains functions in innate immune response in Asian corn borer, Ostrinia furnacalis. INSECT SCIENCE 2024. [PMID: 38772748 DOI: 10.1111/1744-7917.13382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 04/15/2024] [Accepted: 04/23/2024] [Indexed: 05/23/2024]
Abstract
C-type lectins (CTLs) act as pattern recognition receptors (PRRs) to initiate the innate immune response in insects. A CTL with dual carbohydrate recognition domains (CRDs) (named immulectin-4 [IML-4]) was selected from the Ostrinia furnacalis transcriptome dataset for functional studies. We cloned the full-length complementary DNA of O. furnacalis IML-4 (OfIML-4). It encodes a 328-residue protein with a Glu-Pro-Asn (EPN) and Gln-Pro-Asp (QPD) motifs in 2 CRDs, respectively. OfIML-4 messenger RNA levels increased significantly upon the bacterial and fungal infection. Recombinant OfIML-4 (rIML-4) and its individual CRDs (rCRD1 and rCRD2) exhibited the binding ability to various microorganisms including Escherichia coli, Micrococcus luteus, Pichia pastoris, and Beauveria bassiana, and the cell wall components including lipopolysaccharide from E. coli, peptidoglycan from M. luteus or Bacillus subtilis, and curdlan from Alcaligenes faecalis. The binding further induced the agglutination of E. coli, M. luteus, and B. bassiana in the presence of calcium, the phagocytosis of Staphylococcus aureus by the hemocytes, in vitro encapsulation and melanization of nickel-nitrilotriacetic acid beads, and a significant increase in phenoloxidase activity of plasma. In addition, rIML-4 significantly enhanced the phagocytosis, nodulation, and resistance of O. furnacalis to B. bassiana. Taken together, our results suggest that OfIML-4 potentially works as a PRR to recognize the invading microorganisms, and functions in the innate immune response in O. furnacalis.
Collapse
Affiliation(s)
- Er-Tao Li
- Department of Entomology, College of Plant Protection, China Agricultural University, Beijing, China
| | - Jia-Yue Ji
- Department of Entomology, College of Plant Protection, China Agricultural University, Beijing, China
- Pomology Institute, Shanxi Agricultural University, Jinzhong, Shanxi Province, China
| | - Wei-Jie Kong
- Department of Entomology, College of Plant Protection, China Agricultural University, Beijing, China
| | - Dong-Xu Shen
- Department of Entomology, College of Plant Protection, China Agricultural University, Beijing, China
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu Province, China
| | - Cai Li
- Department of Entomology, College of Plant Protection, China Agricultural University, Beijing, China
| | - Chun-Ju An
- Department of Entomology, College of Plant Protection, China Agricultural University, Beijing, China
| |
Collapse
|
21
|
Chang CM, Chang WC, Hsieh SL. Characterization of the genetic variation and evolutionary divergence of the CLEC18 family. J Biomed Sci 2024; 31:53. [PMID: 38764023 PMCID: PMC11103991 DOI: 10.1186/s12929-024-01034-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Accepted: 04/25/2024] [Indexed: 05/21/2024] Open
Abstract
BACKGROUND The C-type lectin family 18 (CLEC18) with lipid and glycan binding capabilities is important to metabolic regulation and innate immune responses against viral infection. However, human CLEC18 comprises three paralogous genes with highly similar sequences, making it challenging to distinguish genetic variations, expression patterns, and biological functions of individual CLEC18 paralogs. Additionally, the evolutionary relationship between human CLEC18 and its counterparts in other species remains unclear. METHODS To identify the sequence variation and evolutionary divergence of human CLEC18 paralogs, we conducted a comprehensive analysis using various resources, including human and non-human primate reference genome assemblies, human pangenome assemblies, and long-read-based whole-genome and -transcriptome sequencing datasets. RESULTS We uncovered paralogous sequence variants (PSVs) and polymorphic variants (PVs) of human CLEC18 proteins, and identified distinct signatures specific to each CLEC18 paralog. Furthermore, we unveiled a novel segmental duplication for human CLEC18A gene. By comparing CLEC18 across human and non-human primates, our research showed that the CLEC18 paralogy probably occurred in the common ancestor of human and closely related non-human primates, and the lipid-binding CAP/SCP/TAPS domain of CLEC18 is more diverse than its glycan-binding CTLD. Moreover, we found that certain amino acids alterations at variant positions are exclusive to human CLEC18 paralogs. CONCLUSIONS Our findings offer a comprehensive profiling of the intricate variations and evolutionary characteristics of human CLEC18.
Collapse
Affiliation(s)
- Che-Mai Chang
- Genomics Research Center, Academia Sinica, No. 128, Sec. 2, Academia Rd., Nangang Dist., Taipei City, 115, Taiwan
- Department of Clinical Pharmacy, School of Pharmacy, Taipei Medical University, No.250, Wuxing St., Xinyi Dist, Taipei City, 110, Taiwan
| | - Wei-Chiao Chang
- Department of Clinical Pharmacy, School of Pharmacy, Taipei Medical University, No.250, Wuxing St., Xinyi Dist, Taipei City, 110, Taiwan.
- Master Program in Clinical Genomics and Proteomics, School of Pharmacy, Taipei Medical University, Taipei City, 110, Taiwan.
- Department of Pharmacy, Wan Fang Hospital, Taipei Medical University, Taipei City, 116, Taiwan.
- Integrative Research Center for Critical Care, Wan Fang Hospital, Taipei Medical University, Taipei City, 116, Taiwan.
- Department of Pharmacology, National Defense Medical Center, Taipei City, 114, Taiwan.
| | - Shie-Liang Hsieh
- Genomics Research Center, Academia Sinica, No. 128, Sec. 2, Academia Rd., Nangang Dist., Taipei City, 115, Taiwan.
- Master Program in Clinical Genomics and Proteomics, School of Pharmacy, Taipei Medical University, Taipei City, 110, Taiwan.
- Immunology Research Center, National Health Research Institutes, No. 35, Keyan Rd., Zhunan Township, Miaoli County, 350, Taiwan.
- Institute of Clinical Medicine, National Yang Ming Chiao Tung University, Taipei City, 112, Taiwan.
- Department of Medical Research, Taipei Veterans General Hospital, Taipei City, 112, Taiwan.
| |
Collapse
|
22
|
Kywe C, Lundquist EA, Ackley BD, Lansdon P. The MAB-5/Hox family transcription factor is important for Caenorhabditis elegans innate immune response to Staphylococcus epidermidis infection. G3 (BETHESDA, MD.) 2024; 14:jkae054. [PMID: 38478633 PMCID: PMC11075571 DOI: 10.1093/g3journal/jkae054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 01/17/2024] [Accepted: 03/03/2024] [Indexed: 04/12/2024]
Abstract
Innate immunity functions as a rapid defense against broad classes of pathogenic agents. While the mechanisms of innate immunity in response to antigen exposure are well-studied, how pathogen exposure activates the innate immune responses and the role of genetic variation in immune activity is currently being investigated. Previously, we showed significant survival differences between the N2 and the CB4856 Caenorhabditis elegans isolates in response to Staphylococcus epidermidis infection. One of those differences was expression of the mab-5 Hox family transcription factor, which was induced in N2, but not CB4856, after infection. In this study, we use survival assays and RNA-sequencing to better understand the role of mab-5 in response to S. epidermidis. We found that mab-5 loss-of-function (LOF) mutants were more susceptible to S. epidermidis infection than N2 or mab-5 gain-of-function (GOF) mutants, but not as susceptible as CB4856 animals. We then conducted transcriptome analysis of infected worms and found considerable differences in gene expression profiles when comparing animals with mab-5 LOF to either N2 or mab-5 GOF. N2 and mab-5 GOF animals showed a significant enrichment in expression of immune genes and C-type lectins, whereas mab-5 LOF mutants did not. Overall, gene expression profiling in mab-5 mutants provided insight into MAB-5 regulation of the transcriptomic response of C. elegans to pathogenic bacteria and helps us to understand mechanisms of innate immune activation and the role that transcriptional regulation plays in organismal health.
Collapse
Affiliation(s)
- Christopher Kywe
- Department of Molecular Biosciences, University of Kansas, Lawrence, KS 66045, USA
| | - Erik A Lundquist
- Department of Molecular Biosciences, University of Kansas, Lawrence, KS 66045, USA
| | - Brian D Ackley
- Department of Molecular Biosciences, University of Kansas, Lawrence, KS 66045, USA
| | - Patrick Lansdon
- Department of Molecular Biosciences, University of Kansas, Lawrence, KS 66045, USA
| |
Collapse
|
23
|
Melepat B, Li T, Vinkler M. Natural selection directing molecular evolution in vertebrate viral sensors. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2024; 154:105147. [PMID: 38325501 DOI: 10.1016/j.dci.2024.105147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 12/30/2023] [Accepted: 02/03/2024] [Indexed: 02/09/2024]
Abstract
Diseases caused by pathogens contribute to molecular adaptations in host immunity. Variety of viral pathogens challenging animal immunity can drive positive selection diversifying receptors recognising the infections. However, whether distinct virus sensing systems differ across animals in their evolutionary modes remains unclear. Our review provides a comparative overview of natural selection shaping molecular evolution in vertebrate viral-binding pattern recognition receptors (PRRs). Despite prevailing negative selection arising from the functional constraints, multiple lines of evidence now suggest diversifying selection in the Toll-like receptors (TLRs), NOD-like receptors (NLRs), RIG-I-like receptors (RLRs) and oligoadenylate synthetases (OASs). In several cases, location of the positively selected sites in the ligand-binding regions suggests effects on viral detection although experimental support is lacking. Unfortunately, in most other PRR families including the AIM2-like receptor family, C-type lectin receptors (CLRs), and cyclic GMP-AMP synthetase studies characterising their molecular evolution are rare, preventing comparative insight. We indicate shared characteristics of the viral sensor evolution and highlight priorities for future research.
Collapse
Affiliation(s)
- Balraj Melepat
- Charles University, Faculty of Science, Department of Zoology, Viničná 7, 128 43, Prague, EU, Czech Republic
| | - Tao Li
- Charles University, Faculty of Science, Department of Zoology, Viničná 7, 128 43, Prague, EU, Czech Republic
| | - Michal Vinkler
- Charles University, Faculty of Science, Department of Zoology, Viničná 7, 128 43, Prague, EU, Czech Republic.
| |
Collapse
|
24
|
Yee EJ, Vigil I, Sun Y, Torphy RJ, Schulick RD, Zhu Y. Group XIV C-type lectins: emerging targets in tumor angiogenesis. Angiogenesis 2024; 27:173-192. [PMID: 38468017 PMCID: PMC11021320 DOI: 10.1007/s10456-024-09907-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 01/23/2024] [Indexed: 03/13/2024]
Abstract
C-type lectins, distinguished by a C-type lectin binding domain (CTLD), are an evolutionarily conserved superfamily of glycoproteins that are implicated in a broad range of physiologic processes. The group XIV subfamily of CTLDs are comprised of CD93, CD248/endosialin, CLEC14a, and thrombomodulin/CD141, and have important roles in creating and maintaining blood vessels, organizing extracellular matrix, and balancing pro- and anti-coagulative processes. As such, dysregulation in the expression and downstream signaling pathways of these proteins often lead to clinically relevant pathology. Recently, group XIV CTLDs have been shown to play significant roles in cancer progression, namely tumor angiogenesis and metastatic dissemination. Interest in therapeutically targeting tumor vasculature is increasing and the search for novel angiogenic targets is ongoing. Group XIV CTLDs have emerged as key moderators of tumor angiogenesis and metastasis, thus offering substantial therapeutic promise for the clinic. Herein, we review our current knowledge of group XIV CTLDs, discuss each's role in malignancy and associated potential therapeutic avenues, briefly discuss group XIV CTLDs in the context of two other relevant lectin families, and offer future direction in further elucidating mechanisms by which these proteins function and facilitate tumor growth.
Collapse
Affiliation(s)
- Elliott J Yee
- Department of Surgery, University of Colorado Anschutz Medical Campus, 12800 E 19th Avenue, RC1-North, P18-8116, Aurora, CO, 80045, USA
| | - Isaac Vigil
- Department of Surgery, University of Colorado Anschutz Medical Campus, 12800 E 19th Avenue, RC1-North, P18-8116, Aurora, CO, 80045, USA
| | - Yi Sun
- Department of Surgery, University of Colorado Anschutz Medical Campus, 12800 E 19th Avenue, RC1-North, P18-8116, Aurora, CO, 80045, USA
| | - Robert J Torphy
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York City, NY, USA
| | - Richard D Schulick
- Department of Surgery, University of Colorado Anschutz Medical Campus, 12800 E 19th Avenue, RC1-North, P18-8116, Aurora, CO, 80045, USA
| | - Yuwen Zhu
- Department of Surgery, University of Colorado Anschutz Medical Campus, 12800 E 19th Avenue, RC1-North, P18-8116, Aurora, CO, 80045, USA.
| |
Collapse
|
25
|
Wang S, Miao S, Lu Y, Li C, Li B. A C-type lectin (CTL2) mediated both humoral and cellular immunity against bacterial infection in Tribolium castaneum. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2024; 201:105852. [PMID: 38685211 DOI: 10.1016/j.pestbp.2024.105852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 03/04/2024] [Accepted: 03/05/2024] [Indexed: 05/02/2024]
Abstract
C-type lectins (CTLs) play essential roles in humoral and cellular immune responses of invertebrates. Previous studies have demonstrated the involvement of CTLs in the humoral immunity of Tribolium castaneum, a worldwide pest in stored products. However, the function of CTLs in cellular immunity remains unclear. Here, we identified a CTL gene located on chromosome X and designated it as CTL2 (TcCTL2) from T. castaneum. It encodes a protein of 305 amino acids with a secretion signal peptide and a carbohydrate-recognition domain. TcCTL2 was mainly expressed in the early pupae and primarily distributed in the hemocytes in the late larvae. It was significantly upregulated after larvae were infected with Escherichia coli or Staphylococcus aureus, while knockdown of TcCTL2 exacerbates larval mortality and bacterial colonization after infection. The purified recombinant TcCTL2 (rTcCTL2) can bind to pathogen-associated molecular patterns and microbes and promote hemocyte-mediated encapsulation, melanization and phagocytosis in vitro. rTcCTL2 also induced bacterial agglutination in a Ca2+-dependent manner. Knockdown of TcCTL2 drastically suppressed encapsulation, melanization, and phagocytosis. Furthermore, silencing of TcCTL2 followed by bacterial infection significantly decreased the expression of transcription factors in Toll and IMD pathways, antimicrobial peptides, and prophenoloxidases and phenoloxidase activity. These results unveiled that TcCTL2 mediates both humoral and cellular immunity to promote bacterial clearance and protect T. castaneum from infectious microbes, which will deepen the understanding of the interaction between CTLs and innate immunity in T. castaneum and permit the optimization of pest control strategies by a combination of RNAi technology and bacterial infection.
Collapse
Affiliation(s)
- Suisui Wang
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Shiyuan Miao
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang 212100, China
| | - Yujie Lu
- School of Grain Science and Technology, Jiangsu University of Science and Technology, Zhenjiang 212100, China
| | - Chengjun Li
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Bin Li
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210023, China.
| |
Collapse
|
26
|
Chang YC, Liu WL, Fang PH, Li JC, Liu KL, Huang JL, Chen HW, Kao CF, Chen CH. Effect of C-type lectin 16 on dengue virus infection in Aedes aegypti salivary glands. PNAS NEXUS 2024; 3:pgae188. [PMID: 38813522 PMCID: PMC11134184 DOI: 10.1093/pnasnexus/pgae188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 04/29/2024] [Indexed: 05/31/2024]
Abstract
C-type lectins (CTLs) are a family of carbohydrate-binding proteins and an important component of mosquito saliva. Although CTLs play key roles in immune activation and viral pathogenesis, little is known about their role in regulating dengue virus (DENV) infection and transmission. In this study, we established a homozygous CTL16 knockout Aedes aegypti mutant line using CRISPR/Cas9 to study the interaction between CTL16 and viruses in mosquito vectors. Furthermore, mouse experiments were conducted to confirm the transmission of DENV by CTL16-/- A. aegypti mutants. We found that CTL16 was mainly expressed in the medial lobe of the salivary glands (SGs) in female A. aegypti. CTL16 knockout increased DENV replication and accumulation in the SGs of female A. aegypti, suggesting that CTL16 plays an important role in DENV transmission. We also found a reduced expression of immunodeficiency and Janus kinase/signal transducer and activator of transcription pathway components correlated with increased DENV viral titer, infection rate, and transmission efficiency in the CTL16 mutant strain. The findings of this study provide insights not only for guiding future investigations on the influence of CTLs on immune responses in mosquitoes but also for developing novel mutants that can be used as vector control tools.
Collapse
Affiliation(s)
- Ya-Chen Chang
- National Mosquito-Borne Diseases Control Research Center, National Health Research Institutes, Miaoli 35053, Taiwan
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli 35053, Taiwan
| | - Wei-Liang Liu
- National Mosquito-Borne Diseases Control Research Center, National Health Research Institutes, Miaoli 35053, Taiwan
| | - Pai-Hsiang Fang
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli 35053, Taiwan
| | - Jian-Chiuan Li
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli 35053, Taiwan
| | - Kun-Lin Liu
- National Mosquito-Borne Diseases Control Research Center, National Health Research Institutes, Miaoli 35053, Taiwan
| | - Jau-Ling Huang
- Department of Bioscience Technology, Chang Jung Christian University, Tainan 711301, Taiwan
| | - Hsin-Wei Chen
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli 35053, Taiwan
| | - Chih-Fei Kao
- Department of Biological Science and Technology, National Yang Ming Chiao Tung University, Hsinchu 300093, Taiwan
| | - Chun-Hong Chen
- National Mosquito-Borne Diseases Control Research Center, National Health Research Institutes, Miaoli 35053, Taiwan
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli 35053, Taiwan
| |
Collapse
|
27
|
Zhang BX, Liu FF, Liu F, Qi WX, Si YQ, Ren HY, Rao XJ. SfMBP: A novel microbial binding protein and pattern recognition receptor in the fall armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae). DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2024; 154:105142. [PMID: 38309673 DOI: 10.1016/j.dci.2024.105142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/26/2024] [Accepted: 02/01/2024] [Indexed: 02/05/2024]
Abstract
The fall armyworm, Spodoptera frugiperda, poses a significant threat as a highly destructive agricultural pest in many countries. Understanding the complex interplay between the insect immune system and entomopathogens is critical for optimizing biopesticide efficacy. In this study, we identified a novel microbial binding protein, SfMBP, in S. frugiperda. However, the specific role of SfMBP in the immune response of S. frugiperda remains elusive. Encoded by the LOC118269163 gene, SfMBP shows significant induction in S. frugiperda larvae infected with the entomopathogen Beauveria bassiana. Consisting of 115 amino acids with a signal peptide, an N-terminal flexible region and a C-terminal β-sheet, SfMBP lacks any known functional domains. It is expressed predominantly during early larval stages and in the larval epidermis. Notably, SfMBP is significantly induced in larvae infected with bacteria and fungi and in SF9 cells stimulated by peptidoglycan. While recombinant SfMBP (rSfMBP) does not inhibit bacterial growth, it demonstrates binding capabilities to bacteria, fungal spores, peptidoglycan, lipopolysaccharides, and polysaccharides. This binding is inhibited by monosaccharides and EDTA. Molecular docking reveals potential Zn2+-interacting residues and three cavities. Furthermore, rSfMBP induces bacterial agglutination in the presence of Zn2+. It also binds to insect hemocytes and SF9 cells, enhancing phagocytosis and agglutination responses. Injection of rSfMBP increased the survival of S. frugiperda larvae infected with B. bassiana, whereas blocking SfMBP with the antibody decreased survival. These results suggest that SfMBP acts as a pattern recognition receptor that enhances pathogen recognition and cellular immune responses. Consequently, this study provides valuable insights for the development of pest control measures.
Collapse
Affiliation(s)
- Bang-Xian Zhang
- Anhui Province Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei, 230036, China; Key Laboratory of Agri-products Quality and Biosafety (Anhui Agricultural University), Ministry of Education, China; School of Biological Science and Food Engineering, Chuzhou, 239000, China
| | - Fang-Fang Liu
- Anhui Province Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei, 230036, China; Key Laboratory of Agri-products Quality and Biosafety (Anhui Agricultural University), Ministry of Education, China
| | - Feng Liu
- Anhui Province Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei, 230036, China; Key Laboratory of Agri-products Quality and Biosafety (Anhui Agricultural University), Ministry of Education, China
| | - Wen-Xuan Qi
- Anhui Province Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei, 230036, China; Key Laboratory of Agri-products Quality and Biosafety (Anhui Agricultural University), Ministry of Education, China
| | - Yan-Qin Si
- Anhui Province Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei, 230036, China; Key Laboratory of Agri-products Quality and Biosafety (Anhui Agricultural University), Ministry of Education, China
| | - Hai-Yan Ren
- Anhui Province Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei, 230036, China; Key Laboratory of Agri-products Quality and Biosafety (Anhui Agricultural University), Ministry of Education, China
| | - Xiang-Jun Rao
- Anhui Province Key Laboratory of Integrated Pest Management on Crops, School of Plant Protection, Anhui Agricultural University, Hefei, 230036, China; Key Laboratory of Agri-products Quality and Biosafety (Anhui Agricultural University), Ministry of Education, China.
| |
Collapse
|
28
|
Bernardes GPMDA, Serra GM, Silva LDSE, Martins MP, Perez LN, de Molfetta FA, Santos AV, Schneider MPC. Potential Involvement of the South American Lungfish Intelectin-2 in Innate-Associated Immune Modulation. Int J Mol Sci 2024; 25:4798. [PMID: 38732017 PMCID: PMC11084424 DOI: 10.3390/ijms25094798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/16/2024] [Accepted: 04/17/2024] [Indexed: 05/13/2024] Open
Abstract
Intelectins belong to a family of lectins with specific and transitory carbohydrate interaction capabilities. These interactions are related to the activity of agglutinating pathogens, as intelectins play a significant role in immunity. Despite the prominent immune defense function of intelectins, limited information about its structural characteristics and carbohydrate interaction properties is available. This study investigated an intelectin transcript identified in RNA-seq data obtained from the South American lungfish (Lepidosiren paradoxa), namely LpITLN2-B. The structural analyses predicted LpITLN2-B to be a homo-trimeric globular protein with the fibrinogen-like functional domain (FReD), exhibiting a molecular mass of 57 kDa. The quaternary structure is subdivided into three monomers, A, B, and C, and each domain comprises 11 β-sheets: an anti-parallel β-sheet, a β-hairpin, and a disordered β-sheet structure. Molecular docking demonstrates a significant interaction with disaccharides rather than monosaccharides. The preferential interaction with disaccharides highlights the potential interaction with pathogen molecules, such as LPS and Poly(I:C). The hemagglutination assay inhibited lectins activity, especially maltose and sucrose, highlighting lectin activity in L. paradoxa samples. Overall, our results show the potential relevance of LpITLN2-B in L. paradoxa immune defense against pathogens.
Collapse
Affiliation(s)
| | - Gustavo Marques Serra
- Laboratory of Biotechnology of Enzymes and Biotransformation, Biological Sciences Institute, Federal University of Pará (UFPA), Belém 66075-110, PA, Brazil;
| | - Lucas da Silva e Silva
- Laboratory of Genomics and Biotechnology, Biological Sciences Institute, Federal University of Pará (UFPA), Belém 66075-110, PA, Brazil; (G.P.M.d.A.B.); (L.d.S.e.S.); (M.P.C.S.)
| | - Maíra Pompeu Martins
- Laboratory of Genomics and Biotechnology, Biological Sciences Institute, Federal University of Pará (UFPA), Belém 66075-110, PA, Brazil; (G.P.M.d.A.B.); (L.d.S.e.S.); (M.P.C.S.)
| | - Louise Neiva Perez
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, USA;
| | - Fábio Alberto de Molfetta
- Laboratory of Molecular Modeling, Exact and Natural Sciences Institute, Federal University of Pará (UFPA), Belém 66075-110, PA, Brazil;
| | - Agenor Valadares Santos
- Laboratory of Biotechnology of Enzymes and Biotransformation, Biological Sciences Institute, Federal University of Pará (UFPA), Belém 66075-110, PA, Brazil;
| | - Maria Paula Cruz Schneider
- Laboratory of Genomics and Biotechnology, Biological Sciences Institute, Federal University of Pará (UFPA), Belém 66075-110, PA, Brazil; (G.P.M.d.A.B.); (L.d.S.e.S.); (M.P.C.S.)
| |
Collapse
|
29
|
Reis E Sousa C, Yamasaki S, Brown GD. Myeloid C-type lectin receptors in innate immune recognition. Immunity 2024; 57:700-717. [PMID: 38599166 DOI: 10.1016/j.immuni.2024.03.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 03/01/2024] [Accepted: 03/05/2024] [Indexed: 04/12/2024]
Abstract
C-type lectin receptors (CLRs) expressed by myeloid cells constitute a versatile family of receptors that play a key role in innate immune recognition. Myeloid CLRs exhibit a remarkable ability to recognize an extensive array of ligands, from carbohydrates and beyond, and encompass pattern-associated molecular patterns (PAMPs), damage-associated molecular patterns (DAMPs), and markers of altered self. These receptors, classified into distinct subgroups, play pivotal roles in immune recognition and modulation of immune responses. Their intricate signaling pathways orchestrate a spectrum of cellular responses, influencing processes such as phagocytosis, cytokine production, and antigen presentation. Beyond their contributions to host defense in viral, bacterial, fungal, and parasitic infections, myeloid CLRs have been implicated in non-infectious diseases such as cancer, allergies, and autoimmunity. A nuanced understanding of myeloid CLR interactions with endogenous and microbial triggers is starting to uncover the context-dependent nature of their roles in innate immunity, with implications for therapeutic intervention.
Collapse
Affiliation(s)
- Caetano Reis E Sousa
- Immunobiology Laboratory, The Francis Crick Institute, 1 Midland Road, NW1 1AT London, UK.
| | - Sho Yamasaki
- Molecular Immunology, Research Institute for Microbial Diseases, Immunology Frontier Research Center (IFReC), Osaka University, Suita 565-0871, Japan.
| | - Gordon D Brown
- MRC Centre for Medical Mycology at the University of Exeter, Geoffrey Pope Building, Stocker Road, Exeter EX4 4QD, UK.
| |
Collapse
|
30
|
Li L, Li X, Zeng L, Wang Z, Deng N, Huang P, Hou J, Jian S, Zhao D. Molecular mechanism of the NOS/NOX regulation of antibacterial activity in Eriocheir sinensis. Comp Biochem Physiol B Biochem Mol Biol 2024; 271:110945. [PMID: 38278206 DOI: 10.1016/j.cbpb.2024.110945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 01/16/2024] [Accepted: 01/16/2024] [Indexed: 01/28/2024]
Abstract
To elucidate the role of nitric oxide synthase (NOS), which produces the free radical nitric oxide (NO), and nicotinamide adenine dinucleotide phosphate oxidase (NOX), which produces the superoxide anion (O2-), in the innate immunity of Eriocheir sinensis, the full lengths of the NOS and NOX genes were cloned via rapid amplification of the cDNA ends and then expressed in the prokaryotic form to obtain the recombinant proteins, NOS-HIS and NOX-HIS. Through bacterial binding and stimulation experiments, the molecular mechanisms of NOS and NOX in the innate immunity of E. sinensis were explored. Based on the results, NOS and NOX were 5900 bp and 4504 bp long, respectively, and were evolutionarily conserved. Quantitative real-time PCR revealed that NOS and NOX were expressed in all studied tissues, and both were expressed in the highest amounts in hemocytes. NOS-HIS and NOX-HIS could bind to bacteria with different binding powers; their binding ability to gram-positive bacteria was higher than that of binding to gram-negative bacteria. After stimulation with Aeromonas hydrophila, NOS expression was significantly up-regulated at 3, 6, and 48 h, and NOX expression was significantly down-regulated at 3, 12, 24, and 48 h. After bacterial stimulation, the NOS enzyme activity in the serum of E. sinensis was also significantly up-regulated at 6 and 48 h, and the NOX enzyme activity was significantly down-regulated at 12 and 48 h, aligning with the gene expression trend. Moreover, the related free radical molecules, NO, O2-, and H2O2, tended to decrease after bacterial stimulation. Overall, the gene expression and enzyme activity of NOS and NOX had been changed respectively, and the contents of a series of free radical molecules (NO, O2- and H2O2) were induced in E. sinensis after bacterial stimulation, which then exert antibacterial immunity.
Collapse
Affiliation(s)
- Linjie Li
- Key Laboratory for Aquatic Germplasm Innovation and Utilization of Jiangxi Province, School of Life Sciences, Nanchang University, Jiangxi 330031, China; Laboratory of Aquatic Animal Healthy Breeding, Chongqing Research Institute of Nanchang University, Chongqing 400037, China
| | - Xiaoyong Li
- Department of Animal Husbandry and Aquatic Technology Extension and Application, Jiangxi Agricultural Technology Extension Center, Jiangxi 330046, China.
| | - Liugen Zeng
- Nanchang Academy of Agricultural Sciences, Jiangxi 330038, China
| | - Ziyu Wang
- Key Laboratory for Aquatic Germplasm Innovation and Utilization of Jiangxi Province, School of Life Sciences, Nanchang University, Jiangxi 330031, China; Laboratory of Aquatic Animal Healthy Breeding, Chongqing Research Institute of Nanchang University, Chongqing 400037, China
| | - Nan Deng
- Key Laboratory for Aquatic Germplasm Innovation and Utilization of Jiangxi Province, School of Life Sciences, Nanchang University, Jiangxi 330031, China; Laboratory of Aquatic Animal Healthy Breeding, Chongqing Research Institute of Nanchang University, Chongqing 400037, China
| | - Peiying Huang
- Key Laboratory for Aquatic Germplasm Innovation and Utilization of Jiangxi Province, School of Life Sciences, Nanchang University, Jiangxi 330031, China; Laboratory of Aquatic Animal Healthy Breeding, Chongqing Research Institute of Nanchang University, Chongqing 400037, China
| | - Jiahao Hou
- Key Laboratory for Aquatic Germplasm Innovation and Utilization of Jiangxi Province, School of Life Sciences, Nanchang University, Jiangxi 330031, China; Laboratory of Aquatic Animal Healthy Breeding, Chongqing Research Institute of Nanchang University, Chongqing 400037, China
| | - Shaoqin Jian
- Key Laboratory for Aquatic Germplasm Innovation and Utilization of Jiangxi Province, School of Life Sciences, Nanchang University, Jiangxi 330031, China; Laboratory of Aquatic Animal Healthy Breeding, Chongqing Research Institute of Nanchang University, Chongqing 400037, China
| | - Daxian Zhao
- Key Laboratory for Aquatic Germplasm Innovation and Utilization of Jiangxi Province, School of Life Sciences, Nanchang University, Jiangxi 330031, China; Laboratory of Aquatic Animal Healthy Breeding, Chongqing Research Institute of Nanchang University, Chongqing 400037, China.
| |
Collapse
|
31
|
Parker J, Marten SM, Ó Corcora TC, Rajkov J, Dubin A, Roth O. The effects of primary and secondary bacterial exposure on the seahorse (Hippocampus erectus) immune response. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2024; 153:105136. [PMID: 38185263 DOI: 10.1016/j.dci.2024.105136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 12/21/2023] [Accepted: 01/04/2024] [Indexed: 01/09/2024]
Abstract
Evolutionary adaptations in the Syngnathidae teleost family (seahorses, pipefish and seadragons) culminated in an array of spectacular morphologies, key immune gene losses, and the enigmatic male pregnancy. In seahorses, genome modifications associated with immunoglobulins, complement, and major histocompatibility complex (MHC II) pathway components raise questions concerning their immunological efficiency and the evolution of compensatory measures that may act in their place. In this investigation heat-killed bacteria (Vibrio aestuarianus and Tenacibaculum maritimum) were used in a two-phased experiment to assess the immune response dynamics of Hippocampus erectus. Gill transcriptomes from double and single-exposed individuals were analysed in order to determine the differentially expressed genes contributing to immune system responses towards immune priming. Double-exposed individuals exhibited a greater adaptive immune response when compared with single-exposed individuals, while single-exposed individuals, particularly with V. aestuarianus replicates, associated more with the innate branch of the immune system. T. maritimum double-exposed replicates exhibited the strongest immune reaction, likely due to their immunological naivety towards the bacterium, while there are also potential signs of innate trained immunity. MHC II upregulated expression was identified in selected V. aestuarianus-exposed seahorses, in the absence of other pathway constituents suggesting a possible alternative or non-classical MHC II immune function in seahorses. Gene Ontology (GO) enrichment analysis highlighted prominent angiogenesis activity following secondary exposure, which could be linked to an adaptive immune process in seahorses. This investigation highlights the prominent role of T-cell mediated adaptive immune responses in seahorses when exposed to sequential foreign bacteria exposures. If classical MHC II pathway function has been lost, innate trained immunity in syngnathids could be a potential compensatory mechanism.
Collapse
Affiliation(s)
- Jamie Parker
- Marine Evolutionary Biology, Christian-Albrechts-University, D-24118, Kiel, Germany.
| | - Silke-Mareike Marten
- Marine Evolutionary Biology, Christian-Albrechts-University, D-24118, Kiel, Germany
| | - Tadhg C Ó Corcora
- Marine Evolutionary Ecology, GEOMAR Helmholtz Centre for Ocean Research Kiel, D-24105, Kiel, Germany
| | - Jelena Rajkov
- Marine Evolutionary Ecology, GEOMAR Helmholtz Centre for Ocean Research Kiel, D-24105, Kiel, Germany
| | - Arseny Dubin
- Marine Evolutionary Biology, Christian-Albrechts-University, D-24118, Kiel, Germany
| | - Olivia Roth
- Marine Evolutionary Biology, Christian-Albrechts-University, D-24118, Kiel, Germany
| |
Collapse
|
32
|
Xu Y, Sun Y, Zhu Y, Song G. Structural insight into CD93 recognition by IGFBP7. Structure 2024; 32:282-291.e4. [PMID: 38218180 DOI: 10.1016/j.str.2023.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 11/28/2023] [Accepted: 12/19/2023] [Indexed: 01/15/2024]
Abstract
The CD93/IGFBP7 axis proteins are key factors expressed in endothelial cells (EC) that mediate EC angiogenesis and migration. Their upregulation contributes to tumor vascular abnormality and a blockade of this interaction promotes a favorable tumor microenvironment for therapeutic interventions. However, the interactions of these proteins with each other remain unclear. In this study, we determined a partial structure of the human CD93-IGFBP7 complex comprising the EGF1 domain of CD93 and the IB domain of IGFBP7. Mutagenesis studies confirmed interactions and specificities. Cellular and mouse tumor studies demonstrated the physiological relevance of the CD93-IGFBP7 interaction in EC angiogenesis. Our study provides leads for the development of therapeutic agents to precisely disrupt unwanted CD93-IGFBP7 signaling in the tumor microenvironment. Additionally, analysis of the CD93 full-length architecture provides insights into how CD93 protrudes on the cell surface and forms a flexible platform for binding to IGFBP7 and other ligands.
Collapse
Affiliation(s)
- Yueming Xu
- Shanghai Frontiers Science Center of Genome Editing and Cell Therapy, Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, China
| | - Yi Sun
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Yuwen Zhu
- Department of Surgery, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA.
| | - Gaojie Song
- Shanghai Frontiers Science Center of Genome Editing and Cell Therapy, Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai 200241, China.
| |
Collapse
|
33
|
Chi W, Hu L, Li Z, Lin B, Zhuo K, Liao J. Transcriptome Analysis of Meloidogyne javanica and the Role of a C-Type Lectin in Parasitism. PLANTS (BASEL, SWITZERLAND) 2024; 13:730. [PMID: 38475576 DOI: 10.3390/plants13050730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 02/28/2024] [Accepted: 03/01/2024] [Indexed: 03/14/2024]
Abstract
Meloidogyne javanica is one of the most widespread and economically important sedentary endoparasites. In this study, a comparative transcriptome analysis of M. javanica between pre-parasitic second-stage juveniles (Pre-J2) and parasitic juveniles (Par-J3/J4) was conducted. A total of 48,698 unigenes were obtained, of which 18,826 genes showed significant differences in expression (p < 0.05). In the differentially expressed genes (DEGs) from transcriptome data at Par-J3/J4 and Pre-J2, a large number of unigenes were annotated to the C-type lectin (CTL, Mg01965), the cathepsin L-like protease (Mi-cpl-1), the venom allergen-like protein (Mi-mps-1), Map-1 and the cellulase (endo-β-1,4-glucanase). Among seven types of lectins found in the DEGs, there were 10 CTLs. The regulatory roles of Mj-CTL-1, Mj-CTL-2 and Mj-CTL-3 in plant immune responses involved in the parasitism of M. javanica were investigated. The results revealed that Mj-CTL-2 could suppress programmed cell death (PCD) triggered by Gpa2/RBP-1 and inhibit the flg22-stimulated ROS burst. In situ hybridization and developmental expression analyses showed that Mj-CTL-2 was specifically expressed in the subventral gland of M. javanica, and its expression was up-regulated at Pre-J2 of the nematode. In addition, in planta silencing of Mj-CTL-2 substantially increased the plant resistance to M. javanica. Moreover, yeast co-transformation and bimolecular fluorescence complementation assay showed that Mj-CTL-2 specifically interacted with the Solanum lycopersicum catalase, SlCAT2. It was demonstrated that M. javanica could suppress the innate immunity of plants through the peroxide system, thereby promoting parasitism.
Collapse
Affiliation(s)
- Wenwei Chi
- Laboratory of Plant Nematology, South China Agricultural University, Guangzhou 510642, China
| | - Lili Hu
- Guangdong Provincial Key Laboratory of Silviculture, Protection and Utilization, Guangdong Academy of Forestry, Guangzhou 510520, China
| | - Zhiwen Li
- Laboratory of Plant Nematology, South China Agricultural University, Guangzhou 510642, China
| | - Borong Lin
- Laboratory of Plant Nematology, South China Agricultural University, Guangzhou 510642, China
| | - Kan Zhuo
- Laboratory of Plant Nematology, South China Agricultural University, Guangzhou 510642, China
| | - Jinling Liao
- Laboratory of Plant Nematology, South China Agricultural University, Guangzhou 510642, China
- Guangdong Eco-Engineering Polytechnic, Guangzhou 510520, China
| |
Collapse
|
34
|
Tu Z, Zhong J, Li H, Sun L, Huang Y, Yang S, Lu Y, Cai S. Characterization and function analysis of cathepsin C in Marsupenaeusjaponicus. FISH & SHELLFISH IMMUNOLOGY 2024; 146:109379. [PMID: 38242264 DOI: 10.1016/j.fsi.2024.109379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 12/31/2023] [Accepted: 01/14/2024] [Indexed: 01/21/2024]
Abstract
Cathepsin C is a cysteine protease widely found in invertebrates and vertebrates, and has the important physiological role participating in proteolysis in vivo and activating various functional proteases in immune/inflammatory cells in the animals. In order to study the role of cathepsin C in the disease resistance of shrimp, we cloned cathepsin C gene (MjcathC) from Marsupenaeus japonicus, analyzed its expression patterns in various tissues, performed MjcathC-knockdown, and finally challenged experimental shrimps with Vibrio alginolyticus and WSSV. The results have shown the full length of MjcathC is 1782 bp, containing an open reading frame of 1350 bp encoding 449 amino acids. Homology analysis revealed that the predicted amino acid sequence of MjcathC shared respectively 88.42 %, 87.36 % and 87.58 % similarity with Penaeus monodon, Fenneropenaeus penicillatus and Litopenaeus vannamei. The expression levels of MjcathC in various tissues of healthy M. japonicus are the highest in the liver, followed by the gills and heart, and the lowest in the stomach. The expression levels of MjcathC were significantly up-regulated in all examined tissues of shrimp challenged with WSSV or V. alginolyticus. After knockdown-MjcathC using RNAi technology in M. japonicus, the expression levels of lectin and heat shock protein 70 in MjcathC-knockdown shrimp were significantly down-regulated, and the mortality of MjcathC-knockdown shrimp challenged by WSSV and V. alginolyticus significantly increased. Knockdown of the MjcathC reduced the resistance of M. japonicus to WSSV and V. alginolyticus. The above results have indicated that cathepsin C may play an important role in the antibacterial and antiviral innate immunity of M. japonicus.
Collapse
Affiliation(s)
- Zuhao Tu
- Fisheries College of Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Zhanjiang, China
| | | | | | | | - Yucong Huang
- Fisheries College of Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Zhanjiang, China; Guangdong Provincial Engineering Research Center for Aquatic Animal Health Assessment, Shenzhen Institute of Guangdong Ocean University, Shenzhen, China
| | - Shiping Yang
- Fisheries College of Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Zhanjiang, China; Guangdong Provincial Engineering Research Center for Aquatic Animal Health Assessment, Shenzhen Institute of Guangdong Ocean University, Shenzhen, China
| | - Yishan Lu
- Fisheries College of Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Zhanjiang, China; Guangdong Provincial Engineering Research Center for Aquatic Animal Health Assessment, Shenzhen Institute of Guangdong Ocean University, Shenzhen, China
| | - Shuanghu Cai
- Fisheries College of Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Zhanjiang, China; Guangdong Provincial Engineering Research Center for Aquatic Animal Health Assessment, Shenzhen Institute of Guangdong Ocean University, Shenzhen, China.
| |
Collapse
|
35
|
Doré H, Eisenberg AR, Junkins EN, Leventhal GE, Ganesh A, Cordero OX, Paul BG, Valentine DL, O’Malley MA, Wilbanks EG. Targeted hypermutation of putative antigen sensors in multicellular bacteria. Proc Natl Acad Sci U S A 2024; 121:e2316469121. [PMID: 38354254 PMCID: PMC10907252 DOI: 10.1073/pnas.2316469121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 01/10/2024] [Indexed: 02/16/2024] Open
Abstract
Diversity-generating retroelements (DGRs) are used by bacteria, archaea, and viruses as a targeted mutagenesis tool. Through error-prone reverse transcription, DGRs introduce random mutations at specific genomic loci, enabling rapid evolution of these targeted genes. However, the function and benefits of DGR-diversified proteins in cellular hosts remain elusive. We find that 82% of DGRs from one of the major monophyletic lineages of DGR reverse transcriptases are encoded by multicellular bacteria, which often have two or more DGR loci in their genomes. Using the multicellular purple sulfur bacterium Thiohalocapsa sp. PB-PSB1 as an example, we characterized nine distinct DGR loci capable of generating 10282 different combinations of target proteins. With environmental metagenomes from individual Thiohalocapsa aggregates, we show that most of PB-PSB1's DGR target genes are diversified across its biogeographic range, with spatial heterogeneity in the diversity of each locus. In Thiohalocapsa PB-PSB1 and other bacteria hosting this lineage of cellular DGRs, the diversified target genes are associated with NACHT-domain anti-phage defenses and putative ternary conflict systems previously shown to be enriched in multicellular bacteria. We propose that these DGR-diversified targets act as antigen sensors that confer a form of adaptive immunity to their multicellular consortia, though this remains to be experimentally tested. These findings could have implications for understanding the evolution of multicellularity, as the NACHT-domain anti-phage systems and ternary systems share both domain homology and conceptual similarities with the innate immune and programmed cell death pathways of plants and metazoans.
Collapse
Affiliation(s)
- H. Doré
- Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, CA93106
| | - A. R. Eisenberg
- Department of Chemical Engineering, University of California, Santa Barbara, CA93106
| | - E. N. Junkins
- Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, CA93106
| | - G. E. Leventhal
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA02139
| | - Anakha Ganesh
- Bay Paul Center, Marine Biological Laboratory, Woods Hole, MA02543
| | - O. X. Cordero
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA02139
| | - B. G. Paul
- Bay Paul Center, Marine Biological Laboratory, Woods Hole, MA02543
| | - D. L. Valentine
- Department of Earth Science, University of California, Santa Barbara, CA93106
- Marine Science Institute, University of California, Santa Barbara, CA93106
| | - M. A. O’Malley
- Department of Chemical Engineering, University of California, Santa Barbara, CA93106
- Department of Bioengineering, University of California, Santa Barbara, CA93106
| | - E. G. Wilbanks
- Department of Ecology, Evolution and Marine Biology, University of California, Santa Barbara, CA93106
- Department of Bioengineering, University of California, Santa Barbara, CA93106
| |
Collapse
|
36
|
Zhang X, Shaukat M, Liu R, Peng L, Wang Y, Su W, Song Y, Tan M. Orally administered dual-targeted astaxanthin nanoparticles as novel dietary supplements for alleviating hepatocyte oxidative stress. Food Funct 2024; 15:2131-2143. [PMID: 38305460 DOI: 10.1039/d3fo05319a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
The enhancement of bioavailability of food bioactive compounds as dietary supplements can be achieved through the development of targeted delivery systems. This study aimed to develop a novel dual-targeted delivery system for hepatocytes and mitochondria using phacoemulsification self-assembly. The delivery systems were engineered by modifying whey protein isolate (WPI) with galactose oligosaccharide (GOS) and triphenylphosphonium (TPP) to improve AXT transport to the liver and promote hepatic well-being. The dual-targeted nanoparticles (AXT@TPP-WPI-GOS) significantly reduced reactive oxygen species in in vitro experiments, thereby slowing down apoptosis. The AXT@TPP-WPI-GOS exhibited a prominent mitochondrial targeting capacity with a Pearson correlation coefficient of 0.76 at 4 h. In vivo pharmacokinetic experiments revealed that AXT@TPP-WPI-GOS could enhance AXT utilization by 28.18 ± 11.69%. Fluorescence imaging in mice demonstrated significantly higher levels of AXT@TPP-WPI-GOS accumulation in the liver compared to that of free AXT. Therefore, these nanoparticles hold promising applications in nutrient fortification, improving the bioavailability of AXT and supporting hepatic well-being.
Collapse
Affiliation(s)
- Xiumin Zhang
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Ganjingzi District, Dalian 116034, Liaoning, China.
- State Key Laboratory of Marine Food Processing and Safety Control, Dalian Polytechnic University, Dalian 116034, Liaoning, China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Mahwish Shaukat
- Department of Food Sciences, Cholistan University of Veterinary & Animal Sciences, Bahawalpur 63100, Pakistan
| | - Ronggang Liu
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Ganjingzi District, Dalian 116034, Liaoning, China.
- State Key Laboratory of Marine Food Processing and Safety Control, Dalian Polytechnic University, Dalian 116034, Liaoning, China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Liyang Peng
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Ganjingzi District, Dalian 116034, Liaoning, China.
- State Key Laboratory of Marine Food Processing and Safety Control, Dalian Polytechnic University, Dalian 116034, Liaoning, China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Yuxiao Wang
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Ganjingzi District, Dalian 116034, Liaoning, China.
- State Key Laboratory of Marine Food Processing and Safety Control, Dalian Polytechnic University, Dalian 116034, Liaoning, China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Wentao Su
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Ganjingzi District, Dalian 116034, Liaoning, China.
- State Key Laboratory of Marine Food Processing and Safety Control, Dalian Polytechnic University, Dalian 116034, Liaoning, China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Yukun Song
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Ganjingzi District, Dalian 116034, Liaoning, China.
- State Key Laboratory of Marine Food Processing and Safety Control, Dalian Polytechnic University, Dalian 116034, Liaoning, China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| | - Mingqian Tan
- Academy of Food Interdisciplinary Science, School of Food Science and Technology, Dalian Polytechnic University, Qinggongyuan1, Ganjingzi District, Dalian 116034, Liaoning, China.
- State Key Laboratory of Marine Food Processing and Safety Control, Dalian Polytechnic University, Dalian 116034, Liaoning, China
- National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, Liaoning, China
| |
Collapse
|
37
|
Chen J, Li W, Li G, Liu X, Huang C, Nie H, Liang L, Wang Y, Liu Y. Targeted liposomes encapsulated iridium(III) compound greatly enhance anticancer efficacy and induce cell death via ferroptosis on HepG2 cells. Eur J Med Chem 2024; 265:116078. [PMID: 38141286 DOI: 10.1016/j.ejmech.2023.116078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 12/01/2023] [Accepted: 12/18/2023] [Indexed: 12/25/2023]
Abstract
In this study, ligands 2-phenyl-1H-imidazo[4,5-f][1,10]phenanthroline (PIP), 2-(2-nitrophenyl)-1H-imidazo[4,5-f][1,10]phenanthroline (NPIP), 2-(2-nitronaphthalen-1-yl)-1H-imidazo[4,5-f][1,10]phenanthroline (NNIP) and their iridium(III) metal compounds [Ir(ppy)2(PIP)](PF6) (ppy = 2-phenylpyridine, 1a), [Ir(ppy)2(NPIP)](PF6) (1b), [Ir(ppy)2(NNIP)](PF6) (1c) were designed and synthesized. The anti-cancer activities of 1a, 1b and 1c on BEL-7402, HepG2, SK-Hep1 and non-cancer LO2 were detected using MTT method. 1a shows moderate, 1b and 1c display low or no anti-cancer activities. To elevate the anti-cancer effectiveness, encapsulating the compounds 1a, 1b and 1c into the ordinary or targeted liposomes to produce 1alip, 1blip, 1clip, or targeted 1aTlip, 1bTlip and 1cTlip. The IC50 values of 1alip, 1blip, 1clip, 1aTlip, 1bTlip and 1cTlip against HepG2 cells are 7.9 ± 0.1, 8.6 ± 0.2, 16.9 ± 0.5, 5.9 ± 0.2, 7.3 ± 0.1 and 9.7 ± 0.7 μM, respectively. Specifically, the anti-tumor activity assays in vivo found that the inhibitory rates are 23.24 % for 1a, 61.27 % for 1alip, 76.06 % for 1aTlip. It is obvious that the targeted liposomes entrapped iridium(III) compound greatly enhance anti-cancer efficacy. Additionally, 1alip, 1blip and 1clip or targeted 1aTlip, 1bTlip and 1cTlip can effectively restrain the cell colony and proliferation in the G0/G1 period. 1alip, 1blip, 1clip, 1aTlip, 1bTlip and 1cTlip can increase reactive oxygen species (ROS) concentration, arouse a decline in the mitochondrial membrane potential and promote Ca2+ release. RNA-sequence was applied to examine the signaling pathways. Taken together, the liposomes or targeted liposomes encapsulated compounds trigger cell death by way of apoptosis, autophagy, ferroptosis, disruption of mitochondrial function and PI3K/AKT/mTOR signaling pathways.
Collapse
Affiliation(s)
- Jing Chen
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, PR China
| | - Wenlong Li
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, PR China
| | - Gechang Li
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, PR China
| | | | - Chunxia Huang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, PR China
| | - Hua Nie
- Jiaying University, Meizhou, 514031, PR China.
| | - Lijuan Liang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, PR China
| | - Yi Wang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, PR China
| | - Yunjun Liu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, 510006, PR China.
| |
Collapse
|
38
|
Huo W, Qin L, Guo W, Zhang X, Du Q, Xia X. PvMR1, a novel C-type lectin plays a crucial role in the antibacterial immune response of Pacific white shrimp, Penaeus vannamei. FISH & SHELLFISH IMMUNOLOGY 2024; 145:109346. [PMID: 38163494 DOI: 10.1016/j.fsi.2023.109346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 12/21/2023] [Accepted: 12/27/2023] [Indexed: 01/03/2024]
Abstract
C-type lectins (CTLs) are important immune molecules in innate immune, which participate in non-self recognition and clearance of pathogens. Here, a new CTL with two distinct C-type lectin domains (CTLDs) from Pacific white shrimp Penaeus vannamei, designated as PvMR1 was identified. The obtained PvMR1 coding sequence (CDS) was 1044 bp long encoding a protein with 347 amino acids. PvMR1 had two CTLD, a conserved mannose-specific EPN motif and a galactose-specific QPD motif, clustering into the same branch as the crustacean CTLs. PvMR1 was widely distributed in shrimp tissues with the highest transcription level in the hepatopancreas, with significantly induced mRNA expression on the hepatopancreas and intestines after immune challenge with Vibrio anguillarum. In vitro assays with recombinant PvMR1 (rPvMR1) protein revealed that it exhibited a wide range of antimicrobial activity, bacterial binding ability, and bacterial agglutination activity in a Ca2+-independent manner. Moreover, PvMR1 promoted bacterial phagocytosis in hemocytes. Furthermore, rPvMR1 treatment could significantly enhance the bacterial clearance in hemolymph and greatly improved the survival of shrimp under V. anguillarum infection in vivo. These results collectively suggest that PvMR1 plays an important role in antibacterial immune response of P. vannamei.
Collapse
Affiliation(s)
- Weiran Huo
- Molecular and Genetic Laboratory, College of Life Science, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Lu Qin
- Molecular and Genetic Laboratory, College of Life Science, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Wanwan Guo
- Molecular and Genetic Laboratory, College of Life Science, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Xiaowen Zhang
- Molecular and Genetic Laboratory, College of Life Science, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Qiyan Du
- Molecular and Genetic Laboratory, College of Life Science, Henan Normal University, Xinxiang, Henan, 453007, China.
| | - Xiaohua Xia
- Molecular and Genetic Laboratory, College of Life Science, Henan Normal University, Xinxiang, Henan, 453007, China.
| |
Collapse
|
39
|
Li Y, Yang W, Sun J, Lian X, Li X, Zhao X, Liu Y, Wang L, Song L. A DM9-containing protein from crab Eriocheir sinensis functions as a novel multipotent pattern recognition receptor. FISH & SHELLFISH IMMUNOLOGY 2024; 145:109356. [PMID: 38163495 DOI: 10.1016/j.fsi.2023.109356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 12/29/2023] [Accepted: 12/30/2023] [Indexed: 01/03/2024]
Abstract
DM9-containing protein in invertebrates functions as pattern recognition receptor (PRR) to play significant roles in innate immunity. In the present study, a novel DM9-containg protein (defined as EsDM9CP-1) was identified from the Chinese mitten crab Eriocheir sinensis. EsDM9CP-1 is composed of 330 amino acids containing a Methyltransf_FA domain and two tandem DM9 repeats. The deduced amino acid sequence of EsDM9CP-1 shared low similarity with the previously identified DM9CPs from other species, and it was closely clustered with Platyhelminthes DM9CPs and then assigned into the branch of invertebrate DM9CPs in the unrooted phylogenetic tree. The mRNA transcripts of EsDM9CP-1 were highly expressed in haemocytes, gill, and heart. After Aeromonas hydrophila stimulation, the expression levels of EsDM9CP-1 mRNA in haemocytes increased significantly at 3 h (3.88-fold, p < 0.05) and 6 h (2.71-fold, p < 0.05), compared with that of PBS group, respectively. EsDM9CP-1 protein was mainly distributed in the cytoplasm and membrane of haemocytes. The recombinant EsDM9CP-1 protein (rEsDM9CP-1) exhibited binding affinity to MAN, PGN, LPS and Poly (I:C), and also to Gram-positive bacteria (Staphylococcus aureus, Micrococcus luteus and Bacillus subtilis), Gram-negative bacteria (Escherichia coli, A. hydrophila and Vibrio splendidus) and fungi (Pichia pastoris and Metschnikowia bicuspidata) in a Ca2+-dependent manner. It was able to agglutinate A. hydrophila, S. aureus, M. luteus, M. bicuspidata and P. pastoris, and inhibit the growth of A. hydrophila and M. bicuspidate. These results suggested that EsDM9CP-1 in crab not only functioned as a PRR, but also agglutinated and inhibited the growth of microbes.
Collapse
Affiliation(s)
- Yinan Li
- College of Life Sciences, Liaoning Normal University, Dalian, 116029, Liaoning, China; Southern Laboratory of Ocean Science and Engineering, Guangdong, Zhuhai, 519000, China; Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Wenwen Yang
- College of Life Sciences, Liaoning Normal University, Dalian, 116029, Liaoning, China; Southern Laboratory of Ocean Science and Engineering, Guangdong, Zhuhai, 519000, China; Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Jiejie Sun
- Southern Laboratory of Ocean Science and Engineering, Guangdong, Zhuhai, 519000, China; Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Xingye Lian
- College of Life Sciences, Liaoning Normal University, Dalian, 116029, Liaoning, China; Southern Laboratory of Ocean Science and Engineering, Guangdong, Zhuhai, 519000, China; Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Xiaopeng Li
- Southern Laboratory of Ocean Science and Engineering, Guangdong, Zhuhai, 519000, China; Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Xinyu Zhao
- College of Life Sciences, Liaoning Normal University, Dalian, 116029, Liaoning, China; Southern Laboratory of Ocean Science and Engineering, Guangdong, Zhuhai, 519000, China; Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Yu Liu
- Southern Laboratory of Ocean Science and Engineering, Guangdong, Zhuhai, 519000, China; Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Lingling Wang
- College of Life Sciences, Liaoning Normal University, Dalian, 116029, Liaoning, China; Southern Laboratory of Ocean Science and Engineering, Guangdong, Zhuhai, 519000, China; Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China
| | - Linsheng Song
- College of Life Sciences, Liaoning Normal University, Dalian, 116029, Liaoning, China; Southern Laboratory of Ocean Science and Engineering, Guangdong, Zhuhai, 519000, China; Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Laboratory of Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Liaoning Key Laboratory of Marine Animal Immunology & Disease Control, Dalian Ocean University, Dalian, 116023, China.
| |
Collapse
|
40
|
Dai X, Xu Z, Jia R, Zhang L, Zheng L, Zhu Z, Gao T, Xu Y, Huang X, Ren Q. Lectin diversity and their positive roles in WSSV replication through regulation of calreticulin expression and inhibiting ALFs expression. Int J Biol Macromol 2024; 258:128996. [PMID: 38151079 DOI: 10.1016/j.ijbiomac.2023.128996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 12/06/2023] [Accepted: 12/21/2023] [Indexed: 12/29/2023]
Abstract
In biological evolution, gene duplication (GD) generates new genes to facilitate new functions. C-type lectins (CTLs) in crayfish have been extended by GD to expand their family members. In this study, four CTL genes generated by GD were identified from Procambarus clarkii (PcLec1-4). Among these four genes, PcLec1 can also generate new isoforms with different numbers of tandem repeats through DNA slip mispairing. PcLec1-4 was widely expressed in multiple tissues. The expression levels of PcLec1-4 were upregulated in the intestine of P. clarkii upon white spot syndrome virus (WSSV) challenge at multiple time points. Further analysis indicated that GATA transcription factor regulated PcLec1-4 expression. RNA interference and recombinant PcLec1-4 protein injection experiments suggested that PcLec1-4 promoted the expression of calreticulin (PcCRT) and negatively regulated the expression of antimicrobial peptides, thereby promoting WSSV replication. This study contributes to the understanding of the function of CTLs produced by GD during WSSV invasion in crustaceans.
Collapse
Affiliation(s)
- Xiaoling Dai
- Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, College of Marine Science and Engineering, Nanjing Normal University, Nanjing, Jiangsu Province 210023, China
| | - Zhiqiang Xu
- Key Laboratory of Genetic Breeding and cultivation for Freshwater Crustacean, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Institute of Jiangsu Province, Nanjing 210017, China
| | - Rui Jia
- Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, College of Marine Science and Engineering, Nanjing Normal University, Nanjing, Jiangsu Province 210023, China
| | - Lihua Zhang
- Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, College of Marine Science and Engineering, Nanjing Normal University, Nanjing, Jiangsu Province 210023, China
| | - Liangmin Zheng
- Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, College of Marine Science and Engineering, Nanjing Normal University, Nanjing, Jiangsu Province 210023, China
| | - Ziyue Zhu
- Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, College of Marine Science and Engineering, Nanjing Normal University, Nanjing, Jiangsu Province 210023, China
| | - Tianheng Gao
- Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, College of Marine Science and Engineering, Nanjing Normal University, Nanjing, Jiangsu Province 210023, China.
| | - Yu Xu
- Key Laboratory of Genetic Breeding and cultivation for Freshwater Crustacean, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Institute of Jiangsu Province, Nanjing 210017, China.
| | - Xin Huang
- Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, College of Marine Science and Engineering, Nanjing Normal University, Nanjing, Jiangsu Province 210023, China.
| | - Qian Ren
- School of Marine Sciences, Nanjing University of Information Science & Technology, Nanjing, Jiangsu Province, 210044, China.
| |
Collapse
|
41
|
Vázquez‐Arias A, Vázquez‐Iglesias L, Pérez‐Juste I, Pérez‐Juste J, Pastoriza‐Santos I, Bodelon G. Bacterial surface display of human lectins in Escherichia coli. Microb Biotechnol 2024; 17:e14409. [PMID: 38380565 PMCID: PMC10884992 DOI: 10.1111/1751-7915.14409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 01/02/2024] [Indexed: 02/22/2024] Open
Abstract
Lectin-glycan interactions sustain fundamental biological processes involved in development and disease. Owing to their unique sugar-binding properties, lectins have great potential in glycobiology and biomedicine. However, their relatively low affinities and broad specificities pose a significant challenge when used as analytical reagents. New approaches for expression and engineering of lectins are in demand to overcome current limitations. Herein, we report the application of bacterial display for the expression of human galectin-3 and mannose-binding lectin in Escherichia coli. The analysis of the cell surface expression and binding activity of the surface-displayed lectins, including point and deletion mutants, in combination with molecular dynamics simulation, demonstrate the robustness and suitability of this approach. Furthermore, the display of functional mannose-binding lectin in the bacterial surface proved the feasibility of this method for disulfide bond-containing lectins. This work establishes for the first time bacterial display as an efficient means for the expression and engineering of human lectins, thereby increasing the available toolbox for glycobiology research.
Collapse
Affiliation(s)
- Alba Vázquez‐Arias
- CINBIOUniversidade de VigoVigoSpain
- Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS‐UVIGOVigoSpain
| | - Lorena Vázquez‐Iglesias
- CINBIOUniversidade de VigoVigoSpain
- Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS‐UVIGOVigoSpain
| | | | - Jorge Pérez‐Juste
- CINBIOUniversidade de VigoVigoSpain
- Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS‐UVIGOVigoSpain
- Departamento de Química FísicaUniversidade de VigoVigoSpain
| | - Isabel Pastoriza‐Santos
- CINBIOUniversidade de VigoVigoSpain
- Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS‐UVIGOVigoSpain
- Departamento de Química FísicaUniversidade de VigoVigoSpain
| | - Gustavo Bodelon
- CINBIOUniversidade de VigoVigoSpain
- Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS‐UVIGOVigoSpain
- Departamento de Biología Funcional y Ciencias de la SaludUniversidade de VigoVigoSpain
| |
Collapse
|
42
|
Ma TF, Huang JN, Wen B, Gao JZ, Chen ZZ. Genome-wide identification and expression analysis of C-type lectins in discus fish (Symphysodon aequifasciatus) during parental care. FISH & SHELLFISH IMMUNOLOGY 2024; 144:109291. [PMID: 38104702 DOI: 10.1016/j.fsi.2023.109291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 12/07/2023] [Accepted: 12/09/2023] [Indexed: 12/19/2023]
Abstract
Discus fish (Symphysodon aequifasciatus) exhibit a unique parental care behavior: adult discus produces secretion through their skin, on which the larvae live after birth. The immune components in the skin mucus of parental discus would change during different parental care. C-type lectins (CTLs) could identify and eliminate pathogenic microorganisms and play important roles in innate immunity. Studies on CTLs of discus fish especially during parental care, however, are scarce. Here, we identified 186 CTL genes that distributed in 27 linkage groups based on discus genome. Phylogenetic analysis showed that S. aequifasciatus CTL (SaCTL) members were grouped into 14 subfamilies. A total of 80 gene replication events occurred, of which 15 pairs were subjected to segmental duplication and 65 pairs underwent tandem duplication. Ka/Ks ranged from 0.11 (SaCTL25/SaCTL158) to 0.68 (SaCTL36/SaCTL69), all undergoing purifying selection. RNA-seq analysis revealed that SaCTL members, including duplicated genes, in the skin of parental discus show distinct expression patterns in different care stages and between male and female parents. The SaCTL11 was differentially expressed in most care stages and reached the maximum after eggs spawned, but the expression of its paired SaCTL14 was low in each stage. The SaCTL39 increased first and then decreased, reaching a peak in eggs spawned, while paired SaCTL48 first decreased and then increased, reaching a peak in hatched eggs. The SaCTL50 was differentially expressed only in female fish during care, but not in male fish. These results provide new insights into the evolution and potential functional differentiation of CTLs in discus fish during parental care.
Collapse
Affiliation(s)
- Teng-Fei Ma
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China
| | - Jun-Nan Huang
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China
| | - Bin Wen
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, 201306, China.
| | - Jian-Zhong Gao
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, 201306, China
| | - Zai-Zhong Chen
- Key Laboratory of Freshwater Aquatic Genetic Resources, Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, 201306, China; Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai, 201306, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, 201306, China.
| |
Collapse
|
43
|
Jiang FH, Huang Y, Yu XY, Cui LF, Shi Y, Song XR, Zhao Z. Identification and characterization of an L-type lectin from obscure puffer Takifugu obscurus in response to bacterial infection. FISH & SHELLFISH IMMUNOLOGY 2024; 144:109283. [PMID: 38092094 DOI: 10.1016/j.fsi.2023.109283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 12/04/2023] [Accepted: 12/06/2023] [Indexed: 12/18/2023]
Abstract
L-type lectins (LTLs) contain a carbohydrate recognition domain homologous to leguminous lectins, and have functions in selective protein trafficking, sorting and targeting in the secretory pathway of animals. In this study, a novel LTL, designated as ToERGIC-53, was cloned and identified from obscure puffer Takifugu obscurus. The open reading frame of ToERGIC-53 contained 1554 nucleotides encoding 517 amino acid residues. The deduced ToERGIC-53 protein consisted of a signal peptide, a leguminous lectin domain (LTLD), a coiled-coil region, and a transmembrane region. Quantitative real-time PCR showed that ToERGIC-53 was expressed in all examined tissues, with the highest expression level in the liver. The expression of ToERGIC-53 was significantly upregulated after infection with Vibrio harveyi and Staphylococcus aureus. Recombinant ToERGIC-53-LTLD (rToERGIC-53-LTLD) protein could not only agglutinate and bind to one Gram-positive bacterium (S. aureus) and three Gram-negative bacteria (V. harveyi, V. parahaemolyticus and Aeromonas hydrophila), but also bind to glycoconjugates on the surface of bacteria such as lipopolysaccharide, peptidoglycan, mannose and galactose. In addition, rToERGIC-53-LTLD inhibited the growth of bacteria in vitro. All these results suggested that ToERGIC-53 might be a pattern recognition receptor involved in antibacterial immune response of T. obscurus.
Collapse
Affiliation(s)
- Fu-Hui Jiang
- Jiangsu Province Engineering Research Center for Marine Bio-resources Sustainable Utilization, Hohai University, Nanjing, 210098, China; Department of Marine Biology, College of Oceanography, Hohai University, Nanjing, 210098, China
| | - Ying Huang
- Jiangsu Province Engineering Research Center for Marine Bio-resources Sustainable Utilization, Hohai University, Nanjing, 210098, China; Department of Marine Biology, College of Oceanography, Hohai University, Nanjing, 210098, China
| | - Xin-Yue Yu
- Jiangsu Province Engineering Research Center for Marine Bio-resources Sustainable Utilization, Hohai University, Nanjing, 210098, China; Department of Marine Biology, College of Oceanography, Hohai University, Nanjing, 210098, China
| | - Li-Fan Cui
- Jiangsu Province Engineering Research Center for Marine Bio-resources Sustainable Utilization, Hohai University, Nanjing, 210098, China; Department of Marine Biology, College of Oceanography, Hohai University, Nanjing, 210098, China
| | - Yan Shi
- Jiangsu Province Engineering Research Center for Marine Bio-resources Sustainable Utilization, Hohai University, Nanjing, 210098, China; Department of Marine Biology, College of Oceanography, Hohai University, Nanjing, 210098, China
| | - Xiao-Rui Song
- Jiangsu Province Engineering Research Center for Marine Bio-resources Sustainable Utilization, Hohai University, Nanjing, 210098, China; Department of Marine Biology, College of Oceanography, Hohai University, Nanjing, 210098, China
| | - Zhe Zhao
- Jiangsu Province Engineering Research Center for Marine Bio-resources Sustainable Utilization, Hohai University, Nanjing, 210098, China; Department of Marine Biology, College of Oceanography, Hohai University, Nanjing, 210098, China.
| |
Collapse
|
44
|
Chang TY, Hong YK, Kuo YL, Wu HL, Shieh SJ. CD248 Regulates Inflammation and Encapsulation in Silicone-Related Capsule Formation. Plast Reconstr Surg 2024; 153:109-120. [PMID: 36988436 DOI: 10.1097/prs.0000000000010464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
Abstract
BACKGROUND Capsular contracture is the most common reason for having a secondary breast implant operation. The failure of the implanted device and discomfort are related to foreign body response, which involves a pathologic encapsulation. An up-regulated expression of CD248 was previously demonstrated to modulate inflammation and fibrosis. The authors hypothesized that CD248 contributes to foreign body reaction and contracture during silicone-stimulated capsule formation. METHODS A murine capsular contracture model was established to correlate CD248 with capsular contracture. The timing and site of CD248 expression were characterized by protein analysis and histologic examination. The capsules between wild-type mice and CD248 knockout mice were compared in this model to verify the possible role of CD248 in silicone-related capsule formation. RESULTS CD248 was expressed in the peri-silicone implant capsule by stromal fibroblast and perivascular fibroblast. CD248 was overexpressed on day 4 and down to a constant level, but it was still up-regulated through day 21 to day 56 after silicone implantation. The CD248 knockout mice showed a prolonged inflammation period, whereas the wild-type mice developed a thinner but more collagenous capsule. CONCLUSIONS In conclusion, an effective murine capsular contracture model was established to study the relationship between CD248 and capsular contracture. CD248 may play a role in inflammation and encapsulation during silicone implantation. CD248 deletion in mice contributed to a loose and irregular collagen bundle in a capsule area, implying a decrease in contracture. Therefore, CD248 could be a potential therapeutic target in capsular contracture. CLINICAL RELEVANCE STATEMENT CD248 may play a role in inflammation and encapsulation during silicone implantation. It could be a potential therapeutic target in clinical capsular contracture.
Collapse
Affiliation(s)
- Tzu-Yen Chang
- From the Division of Plastic and Reconstructive Surgery, Department of Surgery, National Cheng Kung University Hospital
- Institute of Clinical Medicine
| | - Yi-Kai Hong
- Institute of Basic Medical Sciences
- Department of Biochemistry and Molecular Biology, College of Medicine
| | - Yao-Lung Kuo
- From the Division of Plastic and Reconstructive Surgery, Department of Surgery, National Cheng Kung University Hospital
| | - Hua-Lin Wu
- Institute of Basic Medical Sciences
- Department of Biochemistry and Molecular Biology, College of Medicine
| | - Shyh-Jou Shieh
- From the Division of Plastic and Reconstructive Surgery, Department of Surgery, National Cheng Kung University Hospital
- International Center for Wound Repair and Regeneration (iWRR)
- School of Medicine, National Cheng Kung University
| |
Collapse
|
45
|
Wang S, Bi J, Li C, Li B. Latrophilin, an adhesion GPCR with galactose-binding lectin domain involved in the innate immune response of Tribolium castaneum. Int J Biol Macromol 2023; 253:126707. [PMID: 37673160 DOI: 10.1016/j.ijbiomac.2023.126707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/28/2023] [Accepted: 09/03/2023] [Indexed: 09/08/2023]
Abstract
Latrophilin is a member of adhesion GPCRs involved in various physiological pro1cesses. The extracellular fragment of Tribolium castaneum Latrophilin (TcLph) contains a galactose-binding lectin (GBL) domain. However, the biological function of GBL domain remains mysterious. Here, we initially studied the role of TcLph in recognizing pathogens through its GBL domain and then triggering immune defense in invertebrates. Results showed that GBL domain was highly conserved, and its predicted 3D structure was similar to rhamnose-binding lectin domain of mouse Latrophilin-1 with a unique α/β fold and two long loops. Molecular docking and ELISA results revealed the GBL domain can bind to D-galactose, L-rhamnose, lipopolysaccharide and peptidoglycan. The recombinant extracellular segment of TcLph and the recombinant GBL exhibited strong agglutinating and binding activities to all tested bacteria in a Ca2+-dependent manner. Moreover, TcLph was markedly induced after infection by Escherichia coli or Staphylococcus aureus, while its silencing exacerbated bacterial loads and larvae mortality. TcLph-deficient larvae significantly decreased the transcription levels of antimicrobial peptides and prophenoloxidase activating system-related genes, leading to a significant reduction in phenoloxidase activity. It indicated that TcLph functioned as a pattern recognition receptor in pathogen recognition and activated immune responses to eliminate invasive microbes, suggesting a potential target for insecticides.
Collapse
Affiliation(s)
- Suisui Wang
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Jingxiu Bi
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210023, China; Laboratory of Quality and Safety Risk Assessment for Agro-Products of the Ministry of Agriculture (Jinan), Institute of Quality Standard and Testing Technology for Agro-Products, Shandong Academy of Agricultural Sciences, Jinan, Shandong, China
| | - Chengjun Li
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Bin Li
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing 210023, China.
| |
Collapse
|
46
|
Kirikovich SS, Levites EV, Proskurina AS, Ritter GS, Peltek SE, Vasilieva AR, Ruzanova VS, Dolgova EV, Oshihmina SG, Sysoev AV, Koleno DI, Danilenko ED, Taranov OS, Ostanin AA, Chernykh ER, Kolchanov NA, Bogachev SS. The Molecular Aspects of Functional Activity of Macrophage-Activating Factor GcMAF. Int J Mol Sci 2023; 24:17396. [PMID: 38139225 PMCID: PMC10743851 DOI: 10.3390/ijms242417396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 11/27/2023] [Accepted: 12/06/2023] [Indexed: 12/24/2023] Open
Abstract
Group-specific component macrophage-activating factor (GcMAF) is the vitamin D3-binding protein (DBP) deglycosylated at Thr420. The protein is believed to exhibit a wide range of therapeutic properties associated with the activation of macrophagal immunity. An original method for GcMAF production, DBP conversion to GcMAF, and the analysis of the activating potency of GcMAF was developed in this study. Data unveiling the molecular causes of macrophage activation were obtained. GcMAF was found to interact with three CLEC10A derivatives having molecular weights of 29 kDa, 63 kDa, and 65 kDa. GcMAF interacts with high-molecular-weight derivatives via Ca2+-dependent receptor engagement. Binding to the 65 kDa or 63 kDa derivative determines the pro- and anti-inflammatory direction of cytokine mRNA expression: 65 kDa-pro-inflammatory (TNF-α, IL-1β) and 63 kDa-anti-inflammatory (TGF-β, IL-10). No Ca2+ ions are required for the interaction with the canonical 29 kDa CLEC10A. Both forms, DBP protein and GcMAF, bind to the 29 kDa CLEC10A. This interaction is characterized by the stochastic mRNA synthesis of the analyzed cytokines. Ex vivo experiments have demonstrated that when there is an excess of GcMAF ligand, CLEC10A forms aggregate, and the mRNA synthesis of analyzed cytokines is inhibited. A schematic diagram of the presumable mechanism of interaction between the CLEC10A derivatives and GcMAF is provided. The principles and elements of standardizing the GcMAF preparation are elaborated.
Collapse
Affiliation(s)
- Svetlana S. Kirikovich
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (E.V.L.); (A.S.P.); (G.S.R.); (S.E.P.); (A.R.V.); (V.S.R.); (E.V.D.); (S.G.O.); (N.A.K.)
| | - Evgeniy V. Levites
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (E.V.L.); (A.S.P.); (G.S.R.); (S.E.P.); (A.R.V.); (V.S.R.); (E.V.D.); (S.G.O.); (N.A.K.)
| | - Anastasia S. Proskurina
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (E.V.L.); (A.S.P.); (G.S.R.); (S.E.P.); (A.R.V.); (V.S.R.); (E.V.D.); (S.G.O.); (N.A.K.)
| | - Genrikh S. Ritter
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (E.V.L.); (A.S.P.); (G.S.R.); (S.E.P.); (A.R.V.); (V.S.R.); (E.V.D.); (S.G.O.); (N.A.K.)
| | - Sergey E. Peltek
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (E.V.L.); (A.S.P.); (G.S.R.); (S.E.P.); (A.R.V.); (V.S.R.); (E.V.D.); (S.G.O.); (N.A.K.)
| | - Asya R. Vasilieva
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (E.V.L.); (A.S.P.); (G.S.R.); (S.E.P.); (A.R.V.); (V.S.R.); (E.V.D.); (S.G.O.); (N.A.K.)
| | - Vera S. Ruzanova
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (E.V.L.); (A.S.P.); (G.S.R.); (S.E.P.); (A.R.V.); (V.S.R.); (E.V.D.); (S.G.O.); (N.A.K.)
| | - Evgeniya V. Dolgova
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (E.V.L.); (A.S.P.); (G.S.R.); (S.E.P.); (A.R.V.); (V.S.R.); (E.V.D.); (S.G.O.); (N.A.K.)
| | - Sofya G. Oshihmina
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (E.V.L.); (A.S.P.); (G.S.R.); (S.E.P.); (A.R.V.); (V.S.R.); (E.V.D.); (S.G.O.); (N.A.K.)
| | - Alexandr V. Sysoev
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry of the Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (A.V.S.); (D.I.K.)
| | - Danil I. Koleno
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry of the Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (A.V.S.); (D.I.K.)
| | - Elena D. Danilenko
- State Research Center of Virology and Biotechnology “Vector”, 630559 Koltsovo, Russia; (E.D.D.); (O.S.T.)
| | - Oleg S. Taranov
- State Research Center of Virology and Biotechnology “Vector”, 630559 Koltsovo, Russia; (E.D.D.); (O.S.T.)
| | - Alexandr A. Ostanin
- Research Institute of Fundamental and Clinical Immunology, 630099 Novosibirsk, Russia; (A.A.O.); (E.R.C.)
| | - Elena R. Chernykh
- Research Institute of Fundamental and Clinical Immunology, 630099 Novosibirsk, Russia; (A.A.O.); (E.R.C.)
| | - Nikolay A. Kolchanov
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (E.V.L.); (A.S.P.); (G.S.R.); (S.E.P.); (A.R.V.); (V.S.R.); (E.V.D.); (S.G.O.); (N.A.K.)
| | - Sergey S. Bogachev
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (E.V.L.); (A.S.P.); (G.S.R.); (S.E.P.); (A.R.V.); (V.S.R.); (E.V.D.); (S.G.O.); (N.A.K.)
| |
Collapse
|
47
|
Almeida ASDE, Mendonça DNM, Carneiro RF, Pinheiro U, Nascimento EFDO, Andrade AL, Vasconcelos MADE, Teixeira EH, Nagano CS, Sampaio AH. Purification, biochemical characterization of a lectin from marine sponge Ircinia strobilina and its effect on the inhibition of bacterial biofilms. AN ACAD BRAS CIENC 2023; 95:e20220619. [PMID: 38088730 DOI: 10.1590/0001-3765202320220619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 02/09/2023] [Indexed: 12/18/2023] Open
Abstract
A new lectin from marine sponge Ircinia strobilina, denominated IsL, was isolated by combination of affinity chromatography in Guar gum matrix followed by size exclusion chromatography. IsL was able to agglutinate native and enzymatically treated rabbit erythrocytes, being inhibited by galactosides, such as α-methyl-D-galactopyranoside, β-methyl-D-galactopyranoside and α-lactose. IsL hemagglutinating activity was stable at neutral to alkaline pH, however the lectin loses its activity at 40° C. The molecular mass determinated by mass spectrometry was 13.655 ± 5 Da. Approximately 40% of the primary structure of IsL was determined by mass spectrometry, but no similarity was observed with any protein. The secondary structure of IsL consists of 28% α-helix, 26% β-sheet, and 46% random region, as determined by dichroism circular. IsL was a calcium-dependent lectin, but no significant variations were observed by circular dichroism when IsL was incubated in presence of calcium and EDTA. IsL was not toxic against Artemia nauplii and did not have antimicrobial activity against bacterial cells. However, the IsL was able to significantly inhibit the biofilm formation of Staphylococcus aureus and Staphylococcus epidermidis.
Collapse
Affiliation(s)
- Alexandra S DE Almeida
- Universidade Federal do Ceará, Departamento de Engenharia de Pesca, Laboratório de Biotecnologia Marinha - BioMar-Lab, Av. Humberto Monte, s/n, Campus do Pici, bloco 871, 60440-970 Fortaleza, CE, Brazil
- Universidade Federal do Ceará, Instituto de Ciências Marinhas - Labomar, Av. da Abolição, 3207, 60165-081 Fortaleza, CE, Brazil
| | - Dayara N M Mendonça
- Universidade Federal do Ceará, Departamento de Engenharia de Pesca, Laboratório de Biotecnologia Marinha - BioMar-Lab, Av. Humberto Monte, s/n, Campus do Pici, bloco 871, 60440-970 Fortaleza, CE, Brazil
| | - Rômulo F Carneiro
- Universidade Federal do Ceará, Departamento de Engenharia de Pesca, Laboratório de Biotecnologia Marinha - BioMar-Lab, Av. Humberto Monte, s/n, Campus do Pici, bloco 871, 60440-970 Fortaleza, CE, Brazil
| | - Ulisses Pinheiro
- Universidade Federal de Pernambuco, Departamento de Zoologia, Av. Prof. Moraes Rego, 1235, Cidade Universitária, 50670-901 Recife, PE, Brasil
| | - Elielton Francisco DO Nascimento
- Universidade Federal de Pernambuco, Departamento de Zoologia, Av. Prof. Moraes Rego, 1235, Cidade Universitária, 50670-901 Recife, PE, Brasil
| | - Alexandre L Andrade
- Universidade Federal do Ceará, Departamento de Patologia e Medicina Legal, Laboratório Integrado de Biomoléculas - LIBS, Av. Monsenhor Furtado, s/n, 60430-160 Fortaleza, CE, Brazil
| | - Mayron A DE Vasconcelos
- Universidade Federal do Ceará, Departamento de Patologia e Medicina Legal, Laboratório Integrado de Biomoléculas - LIBS, Av. Monsenhor Furtado, s/n, 60430-160 Fortaleza, CE, Brazil
- Universidade do Estado de Minas Gerais, Unidade de Divinópolis, Av. Paraná, 3001, 35501-170 Divinópolis, MG, Brazil
| | - Edson H Teixeira
- Universidade Federal do Ceará, Departamento de Patologia e Medicina Legal, Laboratório Integrado de Biomoléculas - LIBS, Av. Monsenhor Furtado, s/n, 60430-160 Fortaleza, CE, Brazil
| | - Celso S Nagano
- Universidade Federal do Ceará, Departamento de Engenharia de Pesca, Laboratório de Biotecnologia Marinha - BioMar-Lab, Av. Humberto Monte, s/n, Campus do Pici, bloco 871, 60440-970 Fortaleza, CE, Brazil
| | - Alexandre H Sampaio
- Universidade Federal do Ceará, Departamento de Engenharia de Pesca, Laboratório de Biotecnologia Marinha - BioMar-Lab, Av. Humberto Monte, s/n, Campus do Pici, bloco 871, 60440-970 Fortaleza, CE, Brazil
| |
Collapse
|
48
|
Baykov IK, Tikunov AY, Babkin IV, Fedorets VA, Zhirakovskaia EV, Tikunova NV. Tentaclins-A Novel Family of Phage Receptor-Binding Proteins That Can Be Hypermutated by DGR Systems. Int J Mol Sci 2023; 24:17324. [PMID: 38139153 PMCID: PMC10743442 DOI: 10.3390/ijms242417324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 11/29/2023] [Accepted: 12/05/2023] [Indexed: 12/24/2023] Open
Abstract
Diversity-generating retroelements (DGRs) are prokaryotic systems providing rapid modification and adaptation of target proteins. In phages, the main targets of DGRs are receptor-binding proteins that are usually parts of tail structures and the variability of such host-recognizing structures enables phage adaptation to changes on the bacterial host surface. Sometimes, more than one target gene containing a hypermutated variable repeat (VR) can be found in phage DGRs. The role of mutagenesis of two functionally different genes is unclear. In this study, several phage genomes that contain DGRs with two target genes were found in the gut virome of healthy volunteers. Bioinformatics analysis of these genes indicated that they encode proteins with different topology; however, both proteins contain the C-type lectin (C-lec) domain with a hypermutated beta-hairpin on its surface. One of the target proteins belongs to a new family of proteins with a specific topology: N-terminal C-lec domain followed by one or more immunoglobulin domains. Proteins from the new family were named tentaclins after TENTACLe + proteIN. The genes encoding such proteins were found in the genomes of prophages and phages from the gut metagenomes. We hypothesized that tentaclins are involved in binding either to bacterial receptors or intestinal/immune cells.
Collapse
Affiliation(s)
- Ivan K. Baykov
- Federal State Public Scientific Institution «Institute of Chemical Biology and Fundamental Medicine», Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia
| | | | | | | | | | - Nina V. Tikunova
- Federal State Public Scientific Institution «Institute of Chemical Biology and Fundamental Medicine», Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia
| |
Collapse
|
49
|
Xiang Y, Xu H. Occurrence, formation, and proteins perturbation of disinfection byproducts in indoor air resulting from chlorine disinfection. CHEMOSPHERE 2023; 343:140182. [PMID: 37716567 DOI: 10.1016/j.chemosphere.2023.140182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 09/12/2023] [Accepted: 09/13/2023] [Indexed: 09/18/2023]
Abstract
Increased amounts of chlorine disinfectant have been sprayed to inactivate viruses in the environment since the COVID-19 pandemic, and the health risk from chemicals, especially disinfection byproducts (DBPs), has unintentionally increased. In this study, we characterized the occurrence of haloacetic acids (HAAs) and trihalomethanes (THMs) in indoor air and evaluated their formation potential from typical indoor ingredients. Subsequently, the adverse effect of chloroacetic acid on A549 cells was depicted at the proteomic, transcriptional and silico levels. The results revealed that the total concentrations of HAAs and THMs ranged from 1.46 to 4.20 μg/m3 in ten indoor environments. Both classes of DBPs could be generated during the chlorination of prevalent terpenes by competing reactions, which are associated with the volatile state of indoor ingredients after disinfection. The C-type lectin receptor signaling pathway and cellular senescence were significantly perturbed pathways, which interfered with the development of lung fibrosis. The negative effect was further investigated by molecular docking and transcription, which showed that HAAs can interact with four C-type lectin receptor proteins by hydrogen bonds and inhibit the mRNA expression of related proteins. This study highlights the potential secondary biological risk caused by intensive DBPs generated from chlorination and draws our attention to the potential environmental factors leading to chronic respiratory disease.
Collapse
Affiliation(s)
- Yangwei Xiang
- Department of Lung Transplantation and Thoracic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, No.79 Qingchun Road, Hangzhou, 310003, Zhejiang Province, China.
| | - Huan Xu
- Institute of Chemical Biology, Shenzhen Bay Laboratory, Shenzhen, 518132, China
| |
Collapse
|
50
|
Huang Y, Yu XY, Luo P, Jiang FH, Cui LF, Shi Y, Song XR, Zhao Z. Three novel L-type lectins from obscure puffer Takifugu obscurus promote antimicrobial immune response. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2023; 149:105046. [PMID: 37619908 DOI: 10.1016/j.dci.2023.105046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 08/21/2023] [Accepted: 08/21/2023] [Indexed: 08/26/2023]
Abstract
L-type lectins (LTLs) have leguminous lectin domains that bind to high-mannose-type oligosaccharides. LTLs are involved in glycoprotein secretory pathways and associated with many immune responses. In the present research, three LTL homologs from obscure puffer Takifugu obscurus, designated as ToVIP36-1, ToVIP36-2, and ToVIP36-3, were first cloned and identified. The open reading frames of ToVIP36-1, ToVIP36-2, and ToVIP36-3 were 1068, 1002, and 1086 bp in length, respectively, and encode polypeptides with 355, 333, and 361 amino acids, respectively. Key conserved residues and functional domains, including lectin_leg-like domain (LTLD), transmembrane region, and C-terminal trafficking signal KRFY, were identified in all ToVIP36s. Quantitative real-time PCR analysis showed that the three ToVIP36s were widely expressed in six examined tissues and had relatively high expression levels in the liver and intestine. The expression levels of ToVIP36s were remarkably altered in the liver and kidney after induction by Vibrio harveyi and Staphylococcus aureus. Subsequently, the recombinant LTLDs of ToVIP36s (rToVIP36-LTLDs) were prepared by prokaryotic expression. Three rToVIP36-LTLD proteins agglutinated with S. aureus, V. harveyi, Vibrio parahaemolyticus, and Aeromonas hydrophila in a calcium-dependent manner. In the absence of calcium, rToVIP36-LTLD proteins bound to the bacteria by binding to lipopolysaccharides, peptidoglycans, d-mannose, and d-galactose and inhibited the growth of S. aureus and V. harveyi. Our results indicated that ToVIP36s function as pattern-recognition receptors in T. obscurus immunity, providing insights into the role of LTLs in the antibacterial immunity of fishes.
Collapse
Affiliation(s)
- Ying Huang
- Jiangsu Province Engineering Research Center for Marine Bio-resources Sustainable Utilization, Nanjing, 210098, China; Department of Marine Biology, College of Oceanography, Hohai University, Nanjing, 210098, China
| | - Xin-Yue Yu
- Jiangsu Province Engineering Research Center for Marine Bio-resources Sustainable Utilization, Nanjing, 210098, China; Department of Marine Biology, College of Oceanography, Hohai University, Nanjing, 210098, China
| | - Peng Luo
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology (LMB), Guangdong Provincial Key Laboratory of Applied Marine Biology (LAMB), South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 501301, China; South China Sea Bio-Resource Exploitation and Utilization Collaborative Innovation Center, Guangzhou, 510301, China
| | - Fu-Hui Jiang
- Jiangsu Province Engineering Research Center for Marine Bio-resources Sustainable Utilization, Nanjing, 210098, China; Department of Marine Biology, College of Oceanography, Hohai University, Nanjing, 210098, China
| | - Li-Fan Cui
- Jiangsu Province Engineering Research Center for Marine Bio-resources Sustainable Utilization, Nanjing, 210098, China; Department of Marine Biology, College of Oceanography, Hohai University, Nanjing, 210098, China
| | - Yan Shi
- Jiangsu Province Engineering Research Center for Marine Bio-resources Sustainable Utilization, Nanjing, 210098, China; Department of Marine Biology, College of Oceanography, Hohai University, Nanjing, 210098, China
| | - Xiao-Rui Song
- Jiangsu Province Engineering Research Center for Marine Bio-resources Sustainable Utilization, Nanjing, 210098, China; Department of Marine Biology, College of Oceanography, Hohai University, Nanjing, 210098, China
| | - Zhe Zhao
- Jiangsu Province Engineering Research Center for Marine Bio-resources Sustainable Utilization, Nanjing, 210098, China; Department of Marine Biology, College of Oceanography, Hohai University, Nanjing, 210098, China.
| |
Collapse
|