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Svensson, Susanne
Publications (2 of 2) Show all publications
Svensson, S., Abrahamsson, A., Vazquez Rodriguez, G., Olsson, A.-K., Jensen, L., Cao, Y. & Dabrosin, C. (2015). CCL2 and CCL5 Are Novel Therapeutic Targets for Estrogen-Dependent Breast Cancer. Clinical Cancer Research, 21(16), 3794-3805
Open this publication in new window or tab >>CCL2 and CCL5 Are Novel Therapeutic Targets for Estrogen-Dependent Breast Cancer
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2015 (English)In: Clinical Cancer Research, ISSN 1078-0432, E-ISSN 1557-3265, Vol. 21, no 16, p. 3794-3805Article in journal (Refereed) Published
Abstract [en]

Purpose: Novel therapeutic targets of estrogen receptor (ER)-positive breast cancers are urgently needed because current antiestrogen therapy causes severe adverse effects, nearly 50% of patients are intrinsically resistant, and the majority of recurrences have maintained ER expression. We investigated the role of estrogen-dependent chemokine expression and subsequent cancer growth in human tissues and experimental breast cancer models. Experimental Design: For in vivo sampling of human chemokines, microdialysis was used in breast cancers of women or normal human breast tissue before and after tamoxifen therapy. Estrogen exposure and targeted therapies were assessed in immune competent PyMT murine breast cancer, orthotopic human breast cancers in nude mice, cell culture of cancer cells, and freshly isolated human macrophages. Cancer cell dissemination was investigated using zebrafish. Results: ER+ cancers in women produced high levels of extracellular CCL2 and CCL5 in vivo, which was associated with infiltration of tumor-associated macrophages. In experimental breast cancer, estradiol enhanced macrophage influx and angiogenesis through increased release of CCL2, CCL5, and vascular endothelial growth factor. These effects were inhibited by anti-CCL2 or anti-CCL5 therapy, which resulted in potent inhibition of cancer growth. In addition, estradiol induced a protumorigenic activation of the macrophages. In a zebrafish model, macrophages increased cancer cell dissemination via CCL2 and CCL5 in the presence of estradiol, which was inhibited with anti-CCL2 and anti-CCL5 treatment. Conclusions: Our findings shed new light on the mechanisms underlying the progression of ER+ breast cancer and indicate the potential of novel therapies targeting CCL2 and CCL5 pathways. (C)2015 AACR.

Place, publisher, year, edition, pages
AMER ASSOC CANCER RESEARCH, 2015
National Category
Cancer and Oncology
Identifiers
urn:nbn:se:liu:diva-122122 (URN)10.1158/1078-0432.CCR-15-0204 (DOI)000361909100027 ()25901081 (PubMedID)
Note

Funding Agencies|Swedish Cancer Society [2009/799]; Swedish Research Council [2010-3458]; LiU-Cancer; Linkoping University Hospital

Available from: 2015-10-19 Created: 2015-10-19 Last updated: 2018-08-08
Söderlund, K., Svensson, S., Abrahamsson, A., Bendrik, C., Robertson, J., Gauldie, J., . . . Dabrosin, C. (2013). Inflammation Induced by MMP-9 Enhances Tumor Regression of Experimental Breast Cancer. Journal of Immunology, 190(8), 4420-4430
Open this publication in new window or tab >>Inflammation Induced by MMP-9 Enhances Tumor Regression of Experimental Breast Cancer
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2013 (English)In: Journal of Immunology, ISSN 0022-1767, E-ISSN 1550-6606, Vol. 190, no 8, p. 4420-4430Article in journal (Refereed) Published
Abstract [en]

Matrix metalloproteinases (MMPs) have been suggested as therapeutic targets in cancer treatment, but broad-spectrum MMP inhibitors have failed in clinical trials. Recent data suggest that several MMPs including MMP-9 exert both pro-and antitumorigenic properties. This is also the case of the natural inhibitors of MMPs, tissue inhibitor of metalloproteinases (TIMPs). The inhibitor of MMP-9 is TIMP-1, and high levels of this enzyme have been associated with decreased survival in breast cancer. Inflammation is one hallmark of cancer progression, and MMPs/TIMPs may be involved in the local immune regulation. We investigated the role of MMP-9/TIMP-1 in regulating innate antitumor immunity in breast cancer. Breast cancers were established in nude mice and treated with intratumoral injections of adenoviruses carrying the human TIMP-1 or MMP-9 gene (AdMMP-9). In vivo microdialysis for sampling of cancer cell-derived (human) and stroma-derived (murine) proteins, immunostainings, as well as cell cultures were performed. We report a dose-dependent decrease of tumor growth and angiogenesis after AdMMP-9 treatment. In addition to increased generation of endostatin, AdMMP-9 promoted an antitumor immune response by inducing massive neutrophil infiltration. Neutrophil depletion prior to gene transfer abolished the therapeutic effects of AdMMP-9. Additionally, AdMMP-9 activated tumor-infiltrating macrophages into a tumor-inhibiting phenotype both in vivo and in vitro. AdMMP-9 also inhibited tumor growth in immune-competent mice bearing breast cancers. Adenoviruses carrying the human TIMP-1 gene had no effect on tumor growth or the immune response. Our novel data identify MMP-9 as a potent player in modulating the innate immune response into antitumor activities. The Journal of Immunology, 2013, 190: 4420-4430.

Place, publisher, year, edition, pages
American Association of Immunologists, 2013
National Category
Medical and Health Sciences
Identifiers
urn:nbn:se:liu:diva-92700 (URN)10.4049/jimmunol.1202610 (DOI)000317274500059 ()
Note

Funding Agencies|Swedish Cancer Society|2009/799|Swedish Research Council|2010-3458|Research Funds of Linkoping University Hospital||

Available from: 2013-05-16 Created: 2013-05-16 Last updated: 2017-12-06Bibliographically approved
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