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A tick C1q protein alters infectivity of the Lyme disease agent by modulating interferon γ.
Tang, Xiaotian; Arora, Gunjan; Matias, Jaqueline; Hart, Thomas; Cui, Yingjun; Fikrig, Erol.
Afiliación
  • Tang X; Section of Infectious Diseases, Department of Internal Medicine, School of Medicine, Yale University, New Haven, CT, USA. Electronic address: xiaotian.tang@yale.edu.
  • Arora G; Section of Infectious Diseases, Department of Internal Medicine, School of Medicine, Yale University, New Haven, CT, USA.
  • Matias J; Section of Infectious Diseases, Department of Internal Medicine, School of Medicine, Yale University, New Haven, CT, USA.
  • Hart T; Section of Infectious Diseases, Department of Internal Medicine, School of Medicine, Yale University, New Haven, CT, USA.
  • Cui Y; Section of Infectious Diseases, Department of Internal Medicine, School of Medicine, Yale University, New Haven, CT, USA.
  • Fikrig E; Section of Infectious Diseases, Department of Internal Medicine, School of Medicine, Yale University, New Haven, CT, USA.
Cell Rep ; 41(8): 111673, 2022 11 22.
Article en En | MEDLINE | ID: mdl-36417869
In North America, the Lyme disease agent, Borrelia burgdorferi, is commonly transmitted by the black-legged tick, Ixodes scapularis. Tick saliva facilitates blood feeding and enhances pathogen survival and transmission. Here, we demonstrate that I. scapularis complement C1q-like protein 3 (IsC1ql3), a tick salivary protein, directly interacts with B. burgdorferi and is important during the initial stage of spirochetal infection of mice. Mice fed upon by B. burgdorferi-infected IsC1ql3-silenced ticks, or IsC1ql3-immunized mice fed upon by B. burgdorferi-infected ticks, have a lower spirochete burden during the early phase of infection compared with control animals. Mechanically, IsC1ql3 interacts with the globular C1q receptor present on the surface of CD4+ and CD8+ T cells, resulting in decreased production of interferon γ. IsC1ql3 is a C1q-domain-containing protein identified in arthropod vectors and has an important role in B. burgdorferi infectivity as the spirochete transitions from the tick to vertebrate host.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Enfermedad de Lyme / Ixodes Límite: Animals Idioma: En Revista: Cell Rep Año: 2022 Tipo del documento: Article Pais de publicación: Estados Unidos

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Enfermedad de Lyme / Ixodes Límite: Animals Idioma: En Revista: Cell Rep Año: 2022 Tipo del documento: Article Pais de publicación: Estados Unidos