Inflammatory macrophage derived TNFα downregulates estrogen receptor α via FOXO3a inactivation in human breast cancer cells
(2020) In Experimental Cell Research 390(1).- Abstract
Patients with estrogen receptor α positive (ERα+) breast cancer can respond to endocrine therapy, but treatment resistance is common and associated with downregulation of ERα expression in the dormant residual cells. Here we show, using long-term NSG xenograft models of human breast cancer and primary human monocytes, in vitro primary cell cultures and tumors from breast cancer patients, that macrophage derived tumor necrosis factor alpha (TNFα) downregulates ERα in breast cancer cells via inactivation of the transcription factor Forkhead box O transcription factor 3a (FOXO3a). Moreover, presence of tumor associated macrophages in the primary tumor of breast cancer patients, was associated with ERα negativity, and with worse... (More)
Patients with estrogen receptor α positive (ERα+) breast cancer can respond to endocrine therapy, but treatment resistance is common and associated with downregulation of ERα expression in the dormant residual cells. Here we show, using long-term NSG xenograft models of human breast cancer and primary human monocytes, in vitro primary cell cultures and tumors from breast cancer patients, that macrophage derived tumor necrosis factor alpha (TNFα) downregulates ERα in breast cancer cells via inactivation of the transcription factor Forkhead box O transcription factor 3a (FOXO3a). Moreover, presence of tumor associated macrophages in the primary tumor of breast cancer patients, was associated with ERα negativity, and with worse prognosis in patients with ERα+ tumors. We propose that pro-inflammatory macrophages, despite being tumoricidal, may have direct effects on tumor progression and endocrine resistance in breast cancer patients. Our findings suggest that TNFα antagonists should be evaluated for treatment of ERα+ breast cancer.
(Less)
- author
- organization
-
- LUCC: Lund University Cancer Centre
- Cancer Immunology, Malmö (research group)
- Pathways of cancer cell evolution (research group)
- Childhood Cancer Research Unit (research group)
- Division of Translational Cancer Research
- Tumor Cell Biology (research group)
- Therapeutic pathology
- Molecular Pediatric Oncology (research group)
- publishing date
- 2020-05-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Breast cancer, Endocrine resistance, Estrogen receptor, FOXO3a, Macrophage, TNFalpha
- in
- Experimental Cell Research
- volume
- 390
- issue
- 1
- article number
- 111932
- publisher
- Academic Press
- external identifiers
-
- pmid:32145253
- scopus:85081264612
- ISSN
- 0014-4827
- DOI
- 10.1016/j.yexcr.2020.111932
- language
- English
- LU publication?
- yes
- id
- d3e5fa97-2648-401d-a2c4-ec6e3e233131
- date added to LUP
- 2020-04-07 16:38:56
- date last changed
- 2024-08-21 18:56:44
@article{d3e5fa97-2648-401d-a2c4-ec6e3e233131, abstract = {{<p>Patients with estrogen receptor α positive (ERα<sup>+</sup>) breast cancer can respond to endocrine therapy, but treatment resistance is common and associated with downregulation of ERα expression in the dormant residual cells. Here we show, using long-term NSG xenograft models of human breast cancer and primary human monocytes, in vitro primary cell cultures and tumors from breast cancer patients, that macrophage derived tumor necrosis factor alpha (TNFα) downregulates ERα in breast cancer cells via inactivation of the transcription factor Forkhead box O transcription factor 3a (FOXO3a). Moreover, presence of tumor associated macrophages in the primary tumor of breast cancer patients, was associated with ERα negativity, and with worse prognosis in patients with ERα<sup>+</sup> tumors. We propose that pro-inflammatory macrophages, despite being tumoricidal, may have direct effects on tumor progression and endocrine resistance in breast cancer patients. Our findings suggest that TNFα antagonists should be evaluated for treatment of ERα<sup>+</sup> breast cancer.</p>}}, author = {{Gunnarsdóttir, Frida Björk and Hagerling, Catharina and Bergenfelz, Caroline and Mehmeti, Meliha and Källberg, Eva and Allaoui, Roni and Mohlin, Sofie and Påhlman, Sven and Larsson, Christer and Jirström, Karin and Bexell, Daniel and Leandersson, Karin}}, issn = {{0014-4827}}, keywords = {{Breast cancer; Endocrine resistance; Estrogen receptor; FOXO3a; Macrophage; TNFalpha}}, language = {{eng}}, month = {{05}}, number = {{1}}, publisher = {{Academic Press}}, series = {{Experimental Cell Research}}, title = {{Inflammatory macrophage derived TNFα downregulates estrogen receptor α via FOXO3a inactivation in human breast cancer cells}}, url = {{http://dx.doi.org/10.1016/j.yexcr.2020.111932}}, doi = {{10.1016/j.yexcr.2020.111932}}, volume = {{390}}, year = {{2020}}, }