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Bu Y, Wang P, Li S, Li L, Zhang S, Wei H. Semen Protein CRISP3 Promotes Reproductive Performance of Boars through Immunomodulation. Int J Mol Sci 2024; 25:2264. [PMID: 38396941 PMCID: PMC10889302 DOI: 10.3390/ijms25042264] [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: 01/24/2024] [Revised: 02/09/2024] [Accepted: 02/09/2024] [Indexed: 02/25/2024] Open
Abstract
Semen proteins play an important role in male reproductive performance and sperm fertilization ability and can be used as potential biomarkers to evaluate male fertility. The role of cysteine-rich secretory protein 3 (CRISP3) in male reproduction remains unknown. This study aimed to investigate the role of CRISP3 in the reproductive performance of boars. Our results showed that the CRISP3 protein content was significantly and positively correlated with boar fertility, sow delivery rate, and litter size. CRISP3 is highly expressed in the bulbourethral gland of adult boars and is enriched in the seminal plasma. It is localized in the post-acrosomal region of the sperm head and migrates to the anterior end of the tail after capacitation. The CRISP3 recombinant protein did not affect sperm motility and cleavage rate, but it significantly downregulated the mRNA expression of inflammatory factors IL-α, IL-1β, and IL-6 and the protein expression of IL-α and IL-6 in lipopolysaccharide (LPS)-induced RAW264.7 cells, indicating that CRISP3 has an immunomodulatory function. In conclusion, our study suggests that semen CRISP3 protein levels positively correlate with reproductive performance, which may be achieved by regulating immune responses in the female reproductive tract.
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Affiliation(s)
| | | | | | | | - Shouquan Zhang
- State Key Laboratory of Swine and Poultry Breeding Industry, National Engineering Research Center for Breeding Swine Industry, Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangdong 510642, China; (Y.B.)
| | - Hengxi Wei
- State Key Laboratory of Swine and Poultry Breeding Industry, National Engineering Research Center for Breeding Swine Industry, Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangdong 510642, China; (Y.B.)
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Chen J, Wang M, Li S, Ye J, Li L, Wu Y, Cai D, Liu T, Zhu L, Shao Y, Wang S. Well-oriented immobilized immunoaffinity magnetic beads for detection of fumonisins in grains and feeds via pre-column automatic derivatization of high-performance liquid chromatography. Food Chem 2023; 422:136226. [PMID: 37126958 DOI: 10.1016/j.foodchem.2023.136226] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 04/10/2023] [Accepted: 04/20/2023] [Indexed: 05/03/2023]
Abstract
In this study, based on the high-throughput automatic sample pretreatment with immunoaffinity magnetic beads with oriented immobilized antibodies, grain and feed fumonisin (FB) content was detected using pre-column automatic derivatization of high-performance liquid chromatography (HPLC). The FB capacity of well-oriented antibody immunoaffinity magnetic beads was 1.5-1.8 times that of magnetic beads with randomly fixed antibody. This pre-column automatic derivatization method using an autosampler can reduce error from manual injection and improve detection efficiency. The spiked recoveries for three different concentrations in maize, husked rice, and pig feed under optimized conditions were 84.6-104.0% (RSD < 9.3%). Our novel method was also applied to the analysis of FBs in 63 maize samples collected from the main maize-production regions in China. The results showed that as latitude increased, the contamination level of FBs tended to decrease. High temperature and high humidity are also more favorable for FB growth.
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Affiliation(s)
- Jinnan Chen
- Institute of Grain and Oil Quality Safety, Academy of National Food and Strategic Reserves Administration, Beijing 102629, PR China
| | - Meng Wang
- Institute of Grain and Oil Quality Safety, Academy of National Food and Strategic Reserves Administration, Beijing 102629, PR China; School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, PR China
| | - Sen Li
- Institute of Grain and Oil Quality Safety, Academy of National Food and Strategic Reserves Administration, Beijing 102629, PR China
| | - Jin Ye
- Institute of Grain and Oil Quality Safety, Academy of National Food and Strategic Reserves Administration, Beijing 102629, PR China.
| | - Li Li
- Institute of Grain and Oil Quality Safety, Academy of National Food and Strategic Reserves Administration, Beijing 102629, PR China
| | - Yu Wu
- Institute of Grain and Oil Quality Safety, Academy of National Food and Strategic Reserves Administration, Beijing 102629, PR China
| | - Di Cai
- Institute of Grain and Oil Quality Safety, Academy of National Food and Strategic Reserves Administration, Beijing 102629, PR China
| | - Tongtong Liu
- Institute of Grain and Oil Quality Safety, Academy of National Food and Strategic Reserves Administration, Beijing 102629, PR China
| | - Lin Zhu
- Institute of Grain and Oil Quality Safety, Academy of National Food and Strategic Reserves Administration, Beijing 102629, PR China
| | - Yi Shao
- NHC Key Laboratory of Food Safety Risk Assessment, China National Center for Food Safety Risk Assessment, Beijing 100021, PR China
| | - Songxue Wang
- Institute of Grain and Oil Quality Safety, Academy of National Food and Strategic Reserves Administration, Beijing 102629, PR China
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Anti-AMPA Receptor Autoantibodies Reduce Excitatory Currents in Rat Hippocampal Neurons. Pharmaceuticals (Basel) 2023; 16:ph16010077. [PMID: 36678574 PMCID: PMC9864520 DOI: 10.3390/ph16010077] [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: 11/23/2022] [Revised: 12/23/2022] [Accepted: 12/28/2022] [Indexed: 01/07/2023] Open
Abstract
The GluR3 subunit of α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptors (AMPARs) has been identified as a target for autoantibodies (Aabs) in autoimmune encephalopathy and other diseases. Recent studies have proposed mechanisms by which these Aabs act, but their exact role in neuronal excitability is yet to be established. Patient Aabs have been shown to bind to specific regions within the GluR3 subunit. GLUR3B peptides were designed based on described (ELISA) immunogenic epitopes for Aabs and an immunisation strategy was used to generate novel anti-AMPAR Aabs. Target-specific binding and specificity of affinity-purified anti-AMPAR Aabs was confirmed using enzyme-linked immunosorbent assay, immunocytochemistry and Western blot. Functional anti-AMPAR Aab effects were determined on excitatory postsynaptic currents (EPSCs) from primary hippocampal neurons using whole-cell patch-clamp electrophysiology. Acute (10 or 30 min) or longer-term (24 h) application of anti-AMPAR Aabs caused a significant reduction in the mean frequency of spontaneous and miniature EPSCs in hippocampal neurons. Our data demonstrate that anti-AMPAR Aabs targeting peptides linked to auto-immune diseases mediate inhibitory effects on neuronal excitability at the synaptic level, such effects may lead to disruption of the excitatory/inhibitory balance at a network level.
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Ayón C, Castán D, Mora A, Naranjo D, Obando F, Mora JJ. Monoclonal Antibodies: A Therapeutic Option for the Treatment of Ophthalmic Diseases of the Eye Posterior Segment. BORNEO JOURNAL OF PHARMACY 2022. [DOI: 10.33084/bjop.v5i3.2095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The eye is an organ that allows us to observe the outside world. Pathologies of the eye's posterior segment, such as glaucoma, macular degeneration, diabetic retinopathy, uveitis, and retinoblastoma, cause vision loss. Traditional treatments consist of applying topical medications that do not penetrate properly or using high doses that generate adverse effects. Different laser surgeries stop the pathology's progression but do not allow visual improvement. So, an alternative is to use monoclonal antibodies, proteins produced by different processes that selectively bind to metabolites associated with diseases, reducing the adverse effects of traditional treatments and improving the application of the drug in the area. The two main molecular targets are TNF (adalimumab, infliximab, and certolizumab pegol) and VEGF (bevacizumab and ranibizumab); other possibilities are under investigation.
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Temporini C, Colombo R, Calleri E, Tengattini S, Rinaldi F, Massolini G. Chromatographic tools for plant-derived recombinant antibodies purification and characterization. J Pharm Biomed Anal 2020; 179:112920. [DOI: 10.1016/j.jpba.2019.112920] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 10/04/2019] [Accepted: 10/09/2019] [Indexed: 01/13/2023]
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Chahar DS, Ravindran S, Pisal S. Monoclonal antibody purification and its progression to commercial scale. Biologicals 2020; 63:1-13. [DOI: 10.1016/j.biologicals.2019.09.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 08/24/2019] [Accepted: 09/17/2019] [Indexed: 11/17/2022] Open
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Krestova M, Hromadkova L, Ricny J. Purification of Natural Antibodies Against Tau Protein by Affinity Chromatography. Methods Mol Biol 2018; 1643:33-44. [PMID: 28667528 DOI: 10.1007/978-1-4939-7180-0_4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Natural antibodies are now widely studied for their therapeutical potential. Therefore, their isolation and subsequent characterization is desired. Here, we describe an isolation method for natural anti-tau antibodies from human plasma by utilization of affinity chromatography with epoxy-activated copolymer resin. The evalution of isolation efficiency and avidity of isolated antibodies is decribed by modified indirect ELISA assay.
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Affiliation(s)
- Michala Krestova
- National Institute of Mental Health, Topolová 748, 250 67, Klecany, Czech Republic.
| | - Lenka Hromadkova
- National Institute of Mental Health, Topolová 748, 250 67, Klecany, Czech Republic
| | - Jan Ricny
- National Institute of Mental Health, Topolová 748, 250 67, Klecany, Czech Republic
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Identification and verification of hybridoma-derived monoclonal antibody variable region sequences using recombinant DNA technology and mass spectrometry. Mol Immunol 2017; 90:287-294. [PMID: 28865256 DOI: 10.1016/j.molimm.2017.08.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 08/10/2017] [Accepted: 08/16/2017] [Indexed: 11/24/2022]
Abstract
Antibody engineering requires the identification of antigen binding domains or variable regions (VR) unique to each antibody. It is the VR that define the unique antigen binding properties and proper sequence identification is essential for functional evaluation and performance of recombinant antibodies (rAb). This determination can be achieved by sequence analysis of immunoglobulin (Ig) transcripts obtained from a monoclonal antibody (MAb) producing hybridoma and subsequent expression of a rAb. However the polyploidy nature of a hybridoma cell often results in the added expression of aberrant immunoglobulin-like transcripts or even production of anomalous antibodies which can confound production of rAb. An incorrect VR sequence will result in a non-functional rAb and de novo assembly of Ig primary structure without a sequence map is challenging. To address these problems, we have developed a methodology which combines: 1) selective PCR amplification of VR from both the heavy and light chain IgG from hybridoma, 2) molecular cloning and DNA sequence analysis and 3) tandem mass spectrometry (MS/MS) on enzyme digests obtained from the purified IgG. Peptide analysis proceeds by evaluating coverage of the predicted primary protein sequence provided by the initial DNA maps for the VR. This methodology serves to both identify and verify the primary structure of the MAb VR for production as rAb.
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Analysis of Ethylene Receptor Interactions by Co-immunoprecipitation Assays. Methods Mol Biol 2017. [PMID: 28293843 DOI: 10.1007/978-1-4939-6854-1_9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Ethylene receptors are predominantly localized to the endoplasmic reticulum (ER) membrane, and coordinate ethylene signal output through protein-protein interactions with each other and additional signaling components. Here, we describe a co-immunoprecipitation (Co-IP) assay based on the use of the Tandem Affinity Purification (TAP) tag to examine the interactions of ethylene receptors in plant extracts. Human IgG-agarose beads are used to pull down TAP-tagged versions of the protein of interest from detergent extracts of Arabidopsis membranes, and the precipitate then is analyzed immunologically for co-purification of the ethylene receptors. This method has been successfully used to examine interactions of the receptors with each other as well as with the Raf-like kinase CTR1.
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A novel method for immobilization of proteins via entrapment of magnetic nanoparticles through epoxy cross-linking. Anal Biochem 2017; 519:42-50. [DOI: 10.1016/j.ab.2016.12.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 12/08/2016] [Accepted: 12/09/2016] [Indexed: 01/19/2023]
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Limonier F, Van Steendam K, Waeterloos G, Brusselmans K, Sneyers M, Deforce D. An application of mass spectrometry for quality control of biologicals: Highly sensitive profiling of plasma residuals in human plasma-derived immunoglobulin. J Proteomics 2017; 152:312-320. [DOI: 10.1016/j.jprot.2016.11.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 11/04/2016] [Accepted: 11/10/2016] [Indexed: 01/02/2023]
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