» Articles » PMID: 23796898

An IKKα-E2F1-BMI1 Cascade Activated by Infiltrating B Cells Controls Prostate Regeneration and Tumor Recurrence

Overview
Journal Genes Dev
Specialty Molecular Biology
Date 2013 Jun 26
PMID 23796898
Citations 43
Authors
Affiliations
Soon will be listed here.
Abstract

Androgen-deprived prostate cancer (PCa) is infiltrated by B lymphocytes that produce cytokines that activate IκB kinase α (IKKα) to accelerate the emergence of castration-resistant tumors. We now demonstrate that infiltrating B lymphocytes and IKKα are also required for androgen-dependent expansion of epithelial progenitors responsible for prostate regeneration. In these cells and in PCa cells, IKKα phosphorylates transcription factor E2F1 on a site that promotes its nuclear translocation, association with the coactivator CBP, and recruitment to critical genomic targets that include Bmi1, a key regulator of normal and cancerous prostate stem cell renewal. The IKKα-BMI1 pathway is also activated in human PCa.

Citing Articles

B cells and tertiary lymphoid structures in tumors: immunity cycle, clinical impact, and therapeutic applications.

Wu X, Huang Q, Chen X, Zhang B, Liang J, Zhang B Theranostics. 2025; 15(2):605-631.

PMID: 39744696 PMC: 11671382. DOI: 10.7150/thno.105423.


NF-κB signaling pathway in tumor microenvironment.

Cao Y, Yi Y, Han C, Shi B Front Immunol. 2024; 15:1476030.

PMID: 39493763 PMC: 11530992. DOI: 10.3389/fimmu.2024.1476030.


Unveiling the Molecular Landscape of Mutant Prostate Cancer: Insights and Prospects for Targeted Therapeutic Strategies.

Hwang K, Yun J, Kim H Int J Mol Sci. 2023; 24(21).

PMID: 37958805 PMC: 10650174. DOI: 10.3390/ijms242115823.


Exploring the dual role of B cells in solid tumors: implications for head and neck squamous cell carcinoma.

Bao J, Betzler A, Hess J, Brunner C Front Immunol. 2023; 14:1233085.

PMID: 37868967 PMC: 10586314. DOI: 10.3389/fimmu.2023.1233085.


Evolution of immune and stromal cell states and ecotypes during gastric adenocarcinoma progression.

Wang R, Song S, Qin J, Yoshimura K, Peng F, Chu Y Cancer Cell. 2023; 41(8):1407-1426.e9.

PMID: 37419119 PMC: 10528152. DOI: 10.1016/j.ccell.2023.06.005.


References
1.
Gulley J, Figg W, Dahut W . Treatment options for androgen-independent prostate cancer. Clin Adv Hematol Oncol. 2005; 1(1):49-57. View

2.
Hu Y, Baud V, Oga T, Kim K, Yoshida K, Karin M . IKKalpha controls formation of the epidermis independently of NF-kappaB. Nature. 2001; 410(6829):710-4. DOI: 10.1038/35070605. View

3.
Lukacs R, Memarzadeh S, Wu H, Witte O . Bmi-1 is a crucial regulator of prostate stem cell self-renewal and malignant transformation. Cell Stem Cell. 2010; 7(6):682-93. PMC: 3019762. DOI: 10.1016/j.stem.2010.11.013. View

4.
Dvorak H . Tumors: wounds that do not heal. Similarities between tumor stroma generation and wound healing. N Engl J Med. 1986; 315(26):1650-9. DOI: 10.1056/NEJM198612253152606. View

5.
Siegel R, Naishadham D, Jemal A . Cancer statistics, 2012. CA Cancer J Clin. 2012; 62(1):10-29. DOI: 10.3322/caac.20138. View