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Nuocytes from mesenteric lymph node promote allergic responses in a mouse model / Nuócitos de linfonodo mesentérico promovem respostas alérgicas em um modelo de camundongo
Lin, Lin; Tang, Xinyue; Chen, Zheng; Wei, Jinjin; Dai, Fei; Sun, Guangbin.
  • Lin, Lin; Huashan Hospital of Fudan University. Department of Otorhinolaryngology-Head and Neck Surgery. Shanghai. CN
  • Tang, Xinyue; Huashan Hospital North of Fudan University. Department of Otorhinolaryngology-Head and Neck Surgery. Shanghai. CN
  • Chen, Zheng; Huashan Hospital North of Fudan University. Department of Otorhinolaryngology-Head and Neck Surgery. Shanghai. CN
  • Wei, Jinjin; Huashan Hospital North of Fudan University. Department of Otorhinolaryngology-Head and Neck Surgery. Shanghai. CN
  • Dai, Fei; Huashan Hospital North of Fudan University. Department of Otorhinolaryngology-Head and Neck Surgery. Shanghai. CN
  • Sun, Guangbin; Huashan Hospital of Fudan University. Department of Otorhinolaryngology-Head and Neck Surgery. Shanghai. CN
Braz. j. otorhinolaryngol. (Impr.) ; 87(6): 661-670, Nov.-Dec. 2021. graf
Article in English | LILACS | ID: biblio-1350335
ABSTRACT
Abstract

Introduction:

Nuocytes play an important role in Type 2 immunity. However, the contribution of ILC2s to allergic rhinitis remains to be clearly elucidated.

Objective:

To evaluate the role of nuocytes from mesenteric lymph node on allergic responses in mice.

Methods:

After intraperitoneal administration of interleukin IL-25 and IL-33 to wild-type and Il17br-/-Il1rl1-/- double-deficient mice, nuocytes were purified from the the nasal-associated lymphoid tissue and mesenteric lymph nodes. Then, we assessed productions of IL-5 and IL-13 in nuocytes' cultures. Finally, we adoptively transferred the mesenteric lymph node-derived nuocytes from wild-type and Il17br-/-Il1rl1-/- mice to the murine model of allergic rhinitis to evaluate their roles in nasal allergic responses.

Results:

We showed that nuocytes in the mesenteric lymph nodes of wild-type mice were upregulated after application of IL-25 and IL-33, and were induced to produce IL-5 and IL-13. Numbers of sneezing and nasal rubbing as well as eosinophils were all enhanced after the adoptive transfer of wild-type nuocytes. Concentrations of IL-5, IL-13, IL-25 and IL-33 in nasal lavage fluid of allergic mice were also increased. However, nuocytes fromIl17br-/-Il1rl1-/- mice did not increase sneezing and nasal rubbing and eosinophilia, and upregulate the above cytokines in the nasal lavage fluid.

Conclusion:

The findings demonstrate that nuocytes from the mesenteric lymph nodes of wildtype mice promote allergic responses in a mouse model.
RESUMO
Resumo

Introdução:

Os nuócitos desempenham um papel importante na imunidade do tipo 2. No entanto, a contribuição das interleucinas ILC2s na rinite alérgica ainda precisa ser elucidada.

Objetivo:

Avaliar o papel dos nuócitos de linfonodos mesentéricos nas respostas alérgicas em camundongos.

Método:

Após a administração intraperitoneal de interleucina (IL)-25 e IL-33 em camundongos do tipo selvagem e camundongos Il17br-/-Il1rl1-/- com deficiência dupla, os nuócitos foram purificados do tecido linfoide associado a mucosa nasal e linfonodos mesentéricos. Em seguida, avaliamos as produções de IL-5 e IL-13 em culturas de nuócitos. Finalmente, transferimos adotivamente os nuócitos derivados de linfonodos mesentéricos de camundongos do tipo selvagem e camundongos Il17br-/-Il1rl1-/- para o modelo murino de rinite alérgica para avaliar seu papel nas respostas alérgicas nasais.

Resultados:

Mostramos que os nuócitos nos linfonodos mesentéricos de camundongos do tipo selvagem estavam up-regulados após a aplicação de IL-25 e IL-33 e foram induzidos a produzir IL-5 e IL-13. Os espirros e friçcão nasal, bem como os eosinófilos, aumentaram após a transferência adotiva de nuócitos do tipo selvagem. As concentrações de IL-5, IL-13, IL-25 e IL-33 no líquido da lavagem nasal de camundongos alérgicos também estavam aumentadas. Entretanto, os nuócitos de camundongos Il17br-/-Il1rl1-/- não aumentaram os espirros e a friçcão nasal ou eosinofilia e up-regularam as citocinas acima no líquido de lavagem nasal.

Conclusão:

Os achados demonstram que os nuócitos dos linfonodos mesentéricos de camundongos selvagens promovem respostas alérgicas em um modelo de camundongo.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Rhinitis, Allergic / Immunity, Innate Type of study: Prognostic study Limits: Animals Language: English Journal: Braz. j. otorhinolaryngol. (Impr.) Journal subject: Otolaryngology Year: 2021 Type: Article Affiliation country: China Institution/Affiliation country: Huashan Hospital North of Fudan University/CN / Huashan Hospital of Fudan University/CN

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Full text: Available Index: LILACS (Americas) Main subject: Rhinitis, Allergic / Immunity, Innate Type of study: Prognostic study Limits: Animals Language: English Journal: Braz. j. otorhinolaryngol. (Impr.) Journal subject: Otolaryngology Year: 2021 Type: Article Affiliation country: China Institution/Affiliation country: Huashan Hospital North of Fudan University/CN / Huashan Hospital of Fudan University/CN