Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

  • Commentary
  • Published:

What is a natural killer cell?

Natural killer cells have been arbitrarily defined using a number of different phenotypic and functional criteria. We asked Lorenzo Moretta if we have truly discovered the core identity of this critical player in eliciting immune responses.

This is a preview of subscription content, access via your institution

Relevant articles

Open Access articles citing this article.

Access options

Buy this article

Prices may be subject to local taxes which are calculated during checkout

Figure 1: Receptors and ligands involved in human NK cell–mediated cytotoxicity.
Figure 2: Donor NK cell–mediated killing of leukemic cells: more than a dream in bone marrow transplantation.

References

  1. Trinchieri G. Adv. Immunol. 47, 176–187 (1989).

    Google Scholar 

  2. Moretta, L., Ciccone, E., Mingari, M. C., Biassoni, R. & Moretta, A. Adv. Immunol. 55, 341–380 (1994).

    Article  CAS  PubMed  Google Scholar 

  3. Kim, S., Iizuka, K., Aguila, H. L., Weissman, I. L. & Yokoyama, W. M. Proc. Natl Acad. Sci. USA 97, 2731–2736 (2000).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  4. Biron, C. A., Nguyen, K. B., Pien, G. C., Cousens, L. P. & Salazar-Mather, T. P. Annu. Rev. Immunol. 17, 189–220 (1999).

    Article  CAS  PubMed  Google Scholar 

  5. Ljunggren, H. G. & Karre, K. Immunol. Today, 11, 237–244 (1990).

    Article  CAS  Google Scholar 

  6. Yokoyama, W. M. & Seaman, W. E. Annu. Rev. Immunol. 11, 613 (1993).

    Article  CAS  PubMed  Google Scholar 

  7. Moretta, A. et al. Annu. Rev. Immunol. 14, 619–648 (1996).

    Article  CAS  PubMed  Google Scholar 

  8. Lanier, L. L. Annu. Rev. Immunol. 16, 359–393 (1998)

    Article  CAS  PubMed  Google Scholar 

  9. Moretta, A. et al. Annu. Rev. Immunol. 19, 197–223 (2001).

    Article  CAS  PubMed  Google Scholar 

  10. Diefenbach, A. & Raulet, D. H. Immunol. Rev. 181, 170–184 (2001).

    Article  CAS  PubMed  Google Scholar 

  11. Sutherland, C. L., Chalupny, N. J & Cosman, D. Immunol. Rev. 181, 185–192 (2001).

    Article  CAS  PubMed  Google Scholar 

  12. Parolini, S. et al. J. Exp. Med. 192, 337–346 (2000).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  13. Bottino, C. et al. J. Exp. Med. 194, 235–246 (2001).

    CAS  PubMed  PubMed Central  Google Scholar 

  14. Khakoo, S. I. et al. Immunity 12, 687–698 (2000).

    Article  CAS  PubMed  Google Scholar 

  15. De Maria, A. et al. Eur. J. Immunol. 31, 3546–3556 (2002).

    Article  Google Scholar 

  16. Mandelboim, O. et al. Nature 409,1055–1060 (2001).

    Article  CAS  PubMed  Google Scholar 

  17. Arnon, T. I. et al. Eur. J. Immunol. 9, 2680–2689 (2001).

    Article  Google Scholar 

  18. Ruggeri, L., Capanni, M., Martelli, M. F. & Velardi, A. Curr. Opin. Hematol. 6, 355–359 (2001).

    Article  Google Scholar 

Download references

Acknowledgements

Supported by grants awarded by Associazione Italiana per la Ricerca sul Cancro, Istituto Superiore di Sanità, Consiglio Nazionale delle Ricerche, Progetto Finalizzato Biotecnologie, MURST-CNR 5% CNR Biotechnology program 95/95 and Telethon-Italy (grant number E.0892).

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Lorenzo Moretta.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Moretta, A., Bottino, C., Mingari, M. et al. What is a natural killer cell?. Nat Immunol 3, 6–8 (2002). https://doi.org/10.1038/ni0102-6

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1038/ni0102-6

This article is cited by

Search

Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing