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Kaneko N, Kurata M, Yamamoto T, Sakamoto A, Takada Y, Kosako H, Takeda H, Sawasaki T, Masumoto J. CANE, a Component of the NLRP3 Inflammasome, Promotes Inflammasome Activation. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2024; 213:86-95. [PMID: 38787200 DOI: 10.4049/jimmunol.2300175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 04/26/2024] [Indexed: 05/25/2024]
Abstract
The nucleotide-binding oligomerization domain-like receptor family pyrin domain-containing 3 (NLRP3, also called cryopyrin) inflammasome is an intracellular innate immune complex, which consists of the pattern-recognition receptor NLRP3, the adaptor apoptosis-assciated speck-like protein containing a caspase recruitment domain, and procaspase-1. Aberrant activation of the NLRP3 inflammasome causes an autoinflammatory disease called cryopyrin-associated periodic syndrome (CAPS). CAPS is caused by gain-of-function mutations in the NLRP3-encoding gene CIAS1; however, the mechanism of CAPS pathogenesis has not been fully understood. Thus, unknown regulators of the NLRP3 inflammasome, which are associated with CAPS development, are being investigated. To identify novel components of the NLRP3 inflammasome, we performed a high-throughput screen using a human protein array, with NLRP3 as the bait. We identified a NLRP3-binding protein, which we called the cryopyrin-associated nano enhancer (CANE). We demonstrated that CANE increased IL-1β secretion after NLRP3 inflammasome reconstitution in human embryonic kidney 293T cells and formed a "speck" in the cytosol, a hallmark of NLRP3 inflammasome activity. Reduced expression of endogenous CANE decreased IL-1β secretion upon stimulation with the NLRP3 agonist nigericin. To investigate the role of CANE in vivo, we developed CANE-transgenic mice. The PBMCs and bone marrow-derived macrophages of CANE-transgenic mice exhibited increased IL-1β secretion. Moreover, increased autoinflammatory neutrophil infiltration was observed in the s.c. tissue of CANE-transgenic versus wild-type mice; these phenotypes were consistent with those of CAPS model mice. These findings suggest that CANE, a component of the NLRP3 inflammasome, is a potential modulator of the inflammasome and a contributor to CAPS pathogenesis.
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Affiliation(s)
- Naoe Kaneko
- Department of Pathology, Proteo-Science Center and Graduate School of Medicine, Ehime University, Toon, Ehime, Japan
| | - Mie Kurata
- Department of Pathology, Proteo-Science Center and Graduate School of Medicine, Ehime University, Toon, Ehime, Japan
| | - Toshihiro Yamamoto
- Department of Pathology, Proteo-Science Center and Graduate School of Medicine, Ehime University, Toon, Ehime, Japan
| | - Akimasa Sakamoto
- Department of Pathology, Proteo-Science Center and Graduate School of Medicine, Ehime University, Toon, Ehime, Japan
- Department of Hepatobiliary Pancreatic and Transplantation Surgery, Graduate School of Medicine, Ehime University, Toon, Ehime, Japan
| | - Yasutsugu Takada
- Department of Hepatobiliary Pancreatic and Transplantation Surgery, Graduate School of Medicine, Ehime University, Toon, Ehime, Japan
| | - Hidetaka Kosako
- Division of Cell Signaling, Fujii Memorial Institute of Medical Sciences, Institute of Advanced Medical Sciences, Tokushima University, Tokushima, Japan
| | - Hiroyuki Takeda
- Division of Proteo-Drug-Discovery Sciences, Proteo-Science Center, Ehime University, Matsuyama, Ehime, Japan
| | - Tatsuya Sawasaki
- Division of Cell-Free Sciences, Proteo-Science Center, Ehime University, Matsuyama, Ehime, Japan
| | - Junya Masumoto
- Department of Pathology, Proteo-Science Center and Graduate School of Medicine, Ehime University, Toon, Ehime, Japan
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Yamada K, Soga F, Tokunaga S, Nagaoka H, Ozawa T, Kishi H, Takashima E, Sawasaki T. GATS tag system is compatible with biotin labelling methods for protein analysis. Sci Rep 2023; 13:10243. [PMID: 37353572 PMCID: PMC10290147 DOI: 10.1038/s41598-023-36858-y] [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: 11/09/2022] [Accepted: 06/11/2023] [Indexed: 06/25/2023] Open
Abstract
Polypeptide tags and biotin labelling technologies are widely used for protein analyses in biochemistry and cell biology. However, many peptide tag epitopes contain lysine residues (or amino acids) that are masked after biotinylation. Here, we propose the GATS tag system without a lysine residue and with high sensitivity and low non-specific binding using a rabbit monoclonal antibody against Plasmodium falciparum glycosylphosphatidylinositol (GPI)-anchored micronemal antigen (PfGAMA). From 14 monoclonal clones, an Ra3 clone was selected as it recognized an epitope-TLSVGVQNTF-without a lysine residue; this antibody and epitope tag set was called the GATS tag system. Surface plasmon resonance analysis showed that the tag system had a high affinity of 8.71 × 10-9 M. GATS tag indicated a very low background with remarkably high sensitivity and specificity in immunoblotting using the lysates of mammalian cells. It also showed a high sensitivity for immunoprecipitation and immunostaining of cultured human cells. The tag system was highly sensitive in both biotin labelling methods for proteins using NHS-Sulfo-biotin and BioID (proximity-dependent biotin identification) in the human cells, as opposed to a commercially available tag system having lysine residues, which showed reduced sensitivity. These results showed that the GATS tag system is suitable for methods such as BioID involving labelling lysine residues.
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Affiliation(s)
- Kohdai Yamada
- Division of Cell-Free Life Science, Proteo-Science Center, Ehime University, 3 Bunkyo-Cho, Matsuyama, Ehime, 790-8577, Japan
| | - Fumiya Soga
- Division of Cell-Free Life Science, Proteo-Science Center, Ehime University, 3 Bunkyo-Cho, Matsuyama, Ehime, 790-8577, Japan
| | - Soh Tokunaga
- Division of Cell-Free Life Science, Proteo-Science Center, Ehime University, 3 Bunkyo-Cho, Matsuyama, Ehime, 790-8577, Japan
| | - Hikaru Nagaoka
- Division of Malaria Research, Proteo-Science Center, 3 Bunkyo-Cho, Matsuyama, Ehime, 790-8577, Japan
| | - Tatsuhiko Ozawa
- Department of Immunology, Faculty of Medicine, Academic Assembly, Advanced Antibody Drug Development Center, University of Toyama, Toyama, 930-0194, Japan
| | - Hiroyuki Kishi
- Department of Immunology, Faculty of Medicine, Academic Assembly, Advanced Antibody Drug Development Center, University of Toyama, Toyama, 930-0194, Japan
| | - Eizo Takashima
- Division of Malaria Research, Proteo-Science Center, 3 Bunkyo-Cho, Matsuyama, Ehime, 790-8577, Japan
| | - Tatsuya Sawasaki
- Division of Cell-Free Life Science, Proteo-Science Center, Ehime University, 3 Bunkyo-Cho, Matsuyama, Ehime, 790-8577, Japan.
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Veenstra BT, Veenstra TD. Proteomic applications in identifying protein-protein interactions. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2023; 138:1-48. [PMID: 38220421 DOI: 10.1016/bs.apcsb.2023.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2024]
Abstract
There are many things that can be used to characterize a protein. Size, isoelectric point, hydrophobicity, structure (primary to quaternary), and subcellular location are just a few parameters that are used. The most important feature of a protein, however, is its function. While there are many experiments that can indicate a protein's role, identifying the molecules it interacts with is probably the most definitive way of determining its function. Owing to technology limitations, protein interactions have historically been identified on a one molecule per experiment basis. The advent of high throughput multiplexed proteomic technologies in the 1990s, however, made identifying hundreds and thousands of proteins interactions within single experiments feasible. These proteomic technologies have dramatically increased the rate at which protein-protein interactions (PPIs) are discovered. While the improvement in mass spectrometry technology was an early driving force in the rapid pace of identifying PPIs, advances in sample preparation and chromatography have recently been propelling the field. In this chapter, we will discuss the importance of identifying PPIs and describe current state-of-the-art technologies that demonstrate what is currently possible in this important area of biological research.
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Affiliation(s)
- Benjamin T Veenstra
- Department of Math and Sciences, Cedarville University, Cedarville, OH, United States
| | - Timothy D Veenstra
- School of Pharmacy, Cedarville University, Cedarville, OH, United States.
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Cell-free protein synthesis system for bioanalysis: Advances in methods and applications. Trends Analyt Chem 2023. [DOI: 10.1016/j.trac.2023.117015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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