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.

  • Short Report
  • Published:

Upregulation of Bcl-x and Bfl-1 as a potential mechanism of chemoresistance, which can be overcome by NF-κB inhibition

Abstract

In A549 human lung adenocarcinoma cells, we found that TNF-α and several commonly used chemotherapeutic agents upregulated the expression of Bcl-x and/or Bfl-1/A1 through an NF-κB-dependent pathway. While parental A549 cells were resistant to the cytotoxic effects of both TNF-α and chemotherapy agents, NF-κB-blocked A549 cells were sensitized to both. Expression of either Bcl-x or Bfl-1/A1 in the NF-κB-deficient cells at physiological levels provided differential protection against TNF-α and chemotherapeutic treatment. These studies provide a potential mechanism for the phenomenon of chemotherapy-induced chemoresistance, and also reveal a potential strategy by which chemoresistance can be overcome.

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

Access options

Buy this article

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

Figure 1
Figure 2
Figure 3
Figure 4

Similar content being viewed by others

References

  • Ashkenazi A and Dixit V. . 1998 Science 281: 1305–1308.

  • Beg AA and Baltimore D. . 1996 Science 274: 782–784.

  • Chu Z, McKinsey T, Liu L, Gentry J, Malim M and Ballard D. . 1997 Proc. Natl. Acad. Sci. USA 94: 10057–10062.

  • Grumont R, Rourke I and Gerondakis S. . 1999 Genes Dev. 13: 400–411.

  • Hsu H, Shu H, Pan M and Goeddel D. . 1996 Cell 94: 299–308.

  • Hsu H, Xiong J and Goeddel DV. . 1995 Cell 81: 495–504.

  • Lee H, Dadgostar H, Cheng Q, Shu J and Cheng G. . 1999a Proc. Natl. Acad. Sci. USA 96: 9136–9141.

  • Lee H, Dempsey P, Parks T, Zhu X, Baltimore D and Cheng G. . 1999b Proc. Natl. Acad. Sci. USA 96: 1421–1426.

  • Li H, ZH, Xu CJ and Yuan J. . 1998 Cell 94: 491–501.

  • Liu Z, Hsu H, Goeddel D and Karin M. . 1997 Cell 87: 565–576.

  • Luo X, Budihardjo I, Zou H, Slaughter C and Wang X. . 1998 Cell 94: 481–490.

  • Scaffidi C, Fulda S, Srinivasan A, Friesen C, Li F, Tomaselli K, Debatin K, Krammer P and Peter M. . 1998 EMBO J. 17: 1675–1687.

  • Smith CA, Farrah T and Goodwin RG. . 1994 Cell 76: 959–962.

  • Stehlik C, de Martin R, Kumabashiri I, Schmid J, Binder, B and Lipp J. . 1998 J. Exp. Med. 188: 211–216.

  • Tamatani M, Che Y, Matsuzaki H, Ogawa S, Okado H, Miyake S, Mizuno T and Tohyama M. . 1999 J. Biol. Chem. 274: 8531–8538.

  • Van Antwerp D, Martin S, Kafri T, Green D and Verma, I. . 1996 Science 274: 787–789.

  • Wang C, Guttridge D, Mayo M and Baldwin AJ. . 1999 Mol. Cell. Biol. 19: 5923–5929.

  • Wang C, Mayo M, Korneluk R, Goeddel D and Baldwin AJ. . 1998 Science 281: 1680–1683.

  • Wang C-Y, Mayo MW and Baldwin AS. . 1996 Science 274: 784–787.

  • Wu M, Ao Z, Prasad K, Wu R and Schlossman S. . 1998 Science 281: 998–1001.

  • Zong W, Edelstein L, Chen C, Bash J and Gelinas C. . 1999 Genes Dev. 13: 382–387.

Download references

Acknowledgements

HH Lee is supported by a UCLA MSTP Training Grant (GM 08042).

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Cheng, Q., Lee, H., Li, Y. et al. Upregulation of Bcl-x and Bfl-1 as a potential mechanism of chemoresistance, which can be overcome by NF-κB inhibition. Oncogene 19, 4936–4940 (2000). https://doi.org/10.1038/sj.onc.1203861

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1038/sj.onc.1203861

Keywords

This article is cited by

Search

Quick links