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Phytoncides (Wood Essential Oils) Induce Human Natural Killer Cell Activity

Li, Qing, Nakadai, Ari, Matsushima, Hiroki, Miyazaki, Yoshifumi, Krensky, Alan M., Kawada, Tomoyuki, Morimoto, Kanehisa·2006·Immunopharmacology and Immunotoxicology

Abstract

To explore the effect of forest bathing on the human immune system, we investigated the effect of phytoncides (wood essential oils) on natural killer (NK) activity and the expression of perforin, granzyme A and granulysin in human NK cells. We used NK-92MI cell, an interleukin-2 independent human NK cell line derived from the NK-92 cell, in the present study. NK-92MI cells express the CD56 surface marker, perforin, granzyme A, and granulysin by flow cytometry and are highly cytotoxic to K562 cells in chromium release assay. Phytoncides significantly increase cytolytic activity of NK-92MI cells in a dose-dependent manner and significantly increase the expression of perforin, granzyme A, and granulysin in the NK-92MI cells. Phytoncides also partially, but significantly, restore the decreased human NK activity and the decreased perforin, granzyme A, and granulysin expression in NK-92MI cells induced by dimethyl 2,2-dichlorovinyl phosphate (DDVP), an organophosphorus pesticide. Pretreatment with phytoncides partially prevents DDVP-induced inhibition of NK activity. Taken together, these data indicate that phytoncides significantly enhance human NK activity and this effect is at least partially mediated by induction of intracellular perforin, granzyme A, and granulysin.

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Metadata

Authors
Li, Q., Nakadai, A., Matsushima, H., Miyazaki, Y., Krensky, A. M., Kawada, T., & Morimoto, K.
Venue
Immunopharmacology and Immunotoxicology
Published
2006-01
Volume
28
Issue
2
Pages
319-333
ISSN
  • 0892-3973 (ISSN-L)
  • 1532-2513
OpenAlex
W2158634318
Cited by
194
References
0
FWCI
1.69
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Phytoncides (Wood Essential Oils) Induce Human Natural Killer Cell Activity. https://app.cochat.ai/papers/10.1080/08923970600809439
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Li, Q., Nakadai, A., Matsushima, H., Miyazaki, Y., Krensky, A. M., Kawada, T., & Morimoto, K. (2006). Phytoncides (Wood Essential Oils) Induce Human Natural Killer Cell Activity. Immunopharmacology and Immunotoxicology. https://doi.org/10.1080/08923970600809439

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