| Title: | Microbial genetic variation impacts host eco-immunological strategies and microparasite fitness in Lyme borreliae-reptile system |
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| Authors: | ID Nowak, Tristan A. (Author)
ID Fernandes, Carly (Author)
ID Malfetano, Jill (Author)
ID Lasek-Nesselquist, Erica (Author)
ID Combs, Matthew (Author)
ID Strle, Klemen (Author)
ID Burke, Russell L. (Author)
ID Lin, Yi-Pin (Author) |
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| Files: |  PDF - Presentation file, download (1,61 MB)
MD5: 6ED75577A0C2E4AF2ADB691319DF93F5
 URL - Source URL, visit https://www.sciencedirect.com/science/article/pii/S1877959X24001031
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  UKC LJ - Ljubljana University Medical Centre
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| Abstract: | Tolerance and resistance are two host eco-immunological strategies in response to microparasite invasion. In the strategy of “resistance”, host responses are induced to decrease microparasite replication while the “tolerance” strategy allows hosts coexistence with microparasites by minimizing responses to avoid immune-mediated damage. The causative agent of Lyme disease is a group of genotypically diverse bacterial species, Borrelia burgdorferi sensu lato (Bb), which is transmitted by Ixodes ticks and persists in different reservoir animals. In North America, eastern fence lizards (Sceloporus undulatus) can be fed on by Ixodes ticks but are incompetent to one genotype of Bb (i.e., ospC type A). However, field-collected lizards showed evidence of previous infection by Bb strains with undefined genotypes. Supporting this evidence, we introduced three genotypically different Bb strains individually to eastern fence lizards and found a Bb genotype-dependent manner of infectivity. We compared liver transcriptomics and observed elevated immune responses triggered by a lizard-incompetent Bb strain (strain B31). We showed two lizard-competent strains with one having no immunomodulation (strain B379) but the other developing upregulated immune responses (strain 297). These results suggest that genetic variation in microparasites both induces different host strategies for dealing with infection and determines microparasite fitness in the hosts. These findings demonstrate that Bb and eastern fence lizards can serve as a model to investigate the mechanisms underlying eco-immunological strategies of tolerance vs. resistance during host-microparasite interaction. |
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| Keywords: | Lyme disease, borrelia, tolerance, resistance, genetic variation |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Year of publishing: | 2024 |
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| Number of pages: | 7 str. |
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| Numbering: | Vol. 15, issue 6, ǂ[article no.] ǂ102410 |
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| PID: | 20.500.12556/DiRROS-29653  |
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| UDC: | 616.9 |
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| ISSN on article: | 1877-9603 |
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| DOI: | 10.1016/j.ttbdis.2024.102410 |
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| COBISS.SI-ID: | 279356419 |
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| Note: | Nasl. z nasl. zaslona;
Opis vira z dne 26. 5. 2026;
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| Publication date in DiRROS: | 02.06.2026 |
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| Views: | 107 |
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| Downloads: | 75 |
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