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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Health Sciences / Faculty of Health Sciences >
Peer-reviewed Journal Articles, etc >
Chlamydia trachomatis relies on the scavenger role of aryl hydrocarbon receptor with detyrosinated tubulin for its intracellular growth, but this is impaired by excess indole
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| Title: | Chlamydia trachomatis relies on the scavenger role of aryl hydrocarbon receptor with detyrosinated tubulin for its intracellular growth, but this is impaired by excess indole |
| Authors: | Zhang, Saicheng Browse this author | | Funahashi, Yuki Browse this author | | Tanaka, Satoho Browse this author | | Okubo, Torahiko Browse this author →KAKEN DB | | Thapa, Jeewan Browse this author →KAKEN DB | | Nakamura, Shinji Browse this author | | Higashi, Hideaki Browse this author →KAKEN DB | | Yamaguchi, Hiroyuki Browse this author →KAKEN DB |
| Keywords: | Chlamydia trachomatis | | Indole | | IFN-γ | | Aryl hydrocarbon receptor | | Cervical swab | | AhR-reporter assay | | AhR-knockdown cell | | Scavenger | | Detyrosinated tubulin |
| Issue Date: | Jun-2023 |
| Publisher: | Elsevier |
| Journal Title: | Microbes and infection |
| Volume: | 25 |
| Issue: | 5 |
| Start Page: | 105097 |
| Publisher DOI: | 10.1016/j.micinf.2022.105097 |
| PMID: | 36608767 |
| Abstract: | Although IFN-γ depletes tryptophan (Trp) as a defense against intracellular Chlamydia trachomatis (Ct) infected to hypoxic vagina, the presence of indole, a precursor of Trp, enables Ct to infect IFN-γ-exposed culture cells. Meanwhile, Trp-derived indole derivatives interact the aryl hydrocarbon receptor (AhR), which is a ligand-dependent transcription factor involved in the cellular homeostasis with tubulin dynamics. Here, the amounts of IFN-γ and indole in cervical swabs with known Ct infection status were measured, and Ct growth in the presence of indole was determined from the perspective of the AhR axis under hypoxia. A positive correlation between the amounts of IFN-γ and indole was found, and both of these amounts were lower in Ct-positive swabs than in Ct-negative ones. Indole as well as other AhR ligands inhibited Ct growth, especially under normoxia. Ct prompted the expression of detyrosinated tubulin (dTTub), but indole inhibited it. Indole did not stimulate the translocation of AhR to nucleus, and it blocked AhR activation in AhR-reporter cells. Ct growth was reduced more effectively under normoxia in AhR-knockdown cells, an effect that was enhanced by indole, which in turn diminished dTTub. Thus, Ct growth relies on the scavenger role of cytosolic AhR responsible for promoting dTTub expression. |
| Rights: | © 2023. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | | https://creativecommons.org/licenses/by-nc-nd/4.0 |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/92540 |
| Appears in Collections: | 保健科学院・保健科学研究院 (Graduate School of Health Sciences / Faculty of Health Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 山口 博之
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