ArticleImmunology2020
The immunosuppressive functions of two novel tick serpins, HlSerpin-a and HlSerpin-b, from Haemaphysalis longicornis.
Article in Immunology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 26 citations in OpenAlex.
- Serpin 4/5 ofMicroorganisms · 2026Article
- An insight into the salivary gland content of the human body louse, Pediculus humanus.Scientific reports · 2025Article
- Serpins in the Spotlight: Novel Bioinformatic Insights IntoBiochemistry research international · 2025Article
- Iripin-1, a new anti-inflammatory tick serpin, inhibits leukocyte recruitmentFrontiers in immunology · 2023Article
- Mechanism of electroacupuncture and herb-partitioned moxibustion on ulcerative colitis animal model: A study based on proteomics.World journal of gastroenterology · 2022Article
- Serpins in Tick Physiology and Tick-Host Interaction.Frontiers in cellular and infection microbiology · 2022Review
- Host Immune Responses to Salivary Components - A Critical Facet of Tick-Host Interactions.Frontiers in cellular and infection microbiology · 2022Review
- rDromaserpin: A Novel Anti-Hemostatic Serpin, from the Salivary Glands of the Hard TickToxins · 2021Article
- Acquired tick resistance: The trail is hot.Parasite immunology · 2021Review
- Insights into the Role of Tick Salivary Protease Inhibitors during Ectoparasite-Host Crosstalk.International journal of molecular sciences · 2021Review
- Immunomodulatory Proteins in Tick Saliva From a Structural Perspective.Frontiers in cellular and infection microbiology · 2021Review
- Iripin-3, a New Salivary Protein Isolated FromFrontiers in immunology · 2021Article
- Cathepsin B inhibition blocks neurite outgrowth in cultured neurons by regulating lysosomal trafficking and remodeling.Journal of neurochemistry · 2020Article
- Rhipicephalus microplus serpins interfere with host immune responses by specifically modulating mast cells and lymphocytes.Ticks and tick-borne diseases · 2020Article
- Deriving Immune Modulating Drugs from Viruses-A New Class of Biologics.Journal of clinical medicine · 2020Review
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Serpins are evolutionarily conserved serine protease inhibitors that are widely distributed in animals, plants and microbes. In this study, we reported the cloning and functional characterizations of two novel serpin genes, HlSerpin-a and HlSerpin-b, from the hard tick Haemaphysalis longicornis of China. Recombinant HlSerpin-a and HlSerpin-b displayed protease inhibitory activities against multiple mammalian proteases. Similar to other tick serpins, HlSerpin-a and HlSerpin-b suppressed the expression of inflammatory cytokines such as TNF-α, interleukin (IL)-6 and IL-1β from lipopolysaccharide-stimulated mouse bone-marrow-derived macrophages (BMDMs) or mouse bone-marrow-derived dendritic cells (BMDCs). The minimum active region (reaction centre loop) of HlSerpin-a, named SA-RCL, showed similar biological activities as HlSerpin-a in the protease inhibition and immune suppression assays. The immunosuppressive activities of full-length HlSerpin-a and SA-RCL are impaired in Cathepsin G or Cathepsin B knockout mouse macrophages, suggesting that the immunomodulation functions of SA and SA-RCL are dependent on their protease inhibitory activity. Finally, we showed that both full-length HlSerpins and SA-RCL can relieve the joint swelling and inflammatory response in collagen-induced mouse arthritis models. These results suggested that HlSerpin-a and HlSerpin-b are two functional arthropod serpins, and the minimal reactive peptide SA-RCL is a potential candidate for drug development against inflammatory diseases.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.