Monocyte subsets in breast cancer patients under treatment with aromatase inhibitor and mucin-1 cancer vaccine.


Journal

Journal of translational medicine
ISSN: 1479-5876
Titre abrégé: J Transl Med
Pays: England
ID NLM: 101190741

Informations de publication

Date de publication:
08 Oct 2024
Historique:
received: 25 04 2024
accepted: 09 09 2024
medline: 9 10 2024
pubmed: 9 10 2024
entrez: 8 10 2024
Statut: epublish

Résumé

Monocytes comprise subsets of classical, intermediate and non-classical monocytes with distinct anti- or pro-tumor effects in breast cancer (BC). They are modulated by estrogen, and can contribute to BC control by endocrine therapy in preclinical models. To elucidate whether changes in monocyte subsets are associated with treatment and response, we investigated peripheral blood samples of 73 postmenopausal women with estrogen receptor (ER) positive BC, who received aromatase inhibitor therapy with or without the mucin-1 vaccine tecemotide in the ABCSG34 trial. Blood was retrieved at baseline, midterm and end of therapy, and was analyzed for the distribution and ER expression of monocyte subsets by flow cytometry. When 40 healthy, age-matched women were compared with BC patients before treatment start, ER levels of monocytes did not differ, yet patients presented with a higher frequency of classical and fewer non-classical monocytes. Endocrine therapy triggered a significant increase in ER levels in all monocyte subsets, without affecting subset distribution. Vaccination had no overall impact on subset frequency and ER expression. Yet, a shift from intermediate to classical monocytes during therapy correlated with changes in plasma cytokines and chemokines and was significantly associated with low residual cancer burden in vaccinated patients. Without tecemotide, baseline ER levels in classical monocytes were significantly higher in women with good response to endocrine therapy. This study identified classical monocytes to be associated with ER positive BC and with patient response to neoadjuvant endocrine treatment and cancer vaccination.

Sections du résumé

BACKGROUND BACKGROUND
Monocytes comprise subsets of classical, intermediate and non-classical monocytes with distinct anti- or pro-tumor effects in breast cancer (BC). They are modulated by estrogen, and can contribute to BC control by endocrine therapy in preclinical models.
METHODS METHODS
To elucidate whether changes in monocyte subsets are associated with treatment and response, we investigated peripheral blood samples of 73 postmenopausal women with estrogen receptor (ER) positive BC, who received aromatase inhibitor therapy with or without the mucin-1 vaccine tecemotide in the ABCSG34 trial. Blood was retrieved at baseline, midterm and end of therapy, and was analyzed for the distribution and ER expression of monocyte subsets by flow cytometry.
RESULTS RESULTS
When 40 healthy, age-matched women were compared with BC patients before treatment start, ER levels of monocytes did not differ, yet patients presented with a higher frequency of classical and fewer non-classical monocytes. Endocrine therapy triggered a significant increase in ER levels in all monocyte subsets, without affecting subset distribution. Vaccination had no overall impact on subset frequency and ER expression. Yet, a shift from intermediate to classical monocytes during therapy correlated with changes in plasma cytokines and chemokines and was significantly associated with low residual cancer burden in vaccinated patients. Without tecemotide, baseline ER levels in classical monocytes were significantly higher in women with good response to endocrine therapy.
CONCLUSIONS CONCLUSIONS
This study identified classical monocytes to be associated with ER positive BC and with patient response to neoadjuvant endocrine treatment and cancer vaccination.

Identifiants

pubmed: 39380101
doi: 10.1186/s12967-024-05659-w
pii: 10.1186/s12967-024-05659-w
doi:

Substances chimiques

Aromatase Inhibitors 0
Cancer Vaccines 0
Mucin-1 0
Receptors, Estrogen 0

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

913

Subventions

Organisme : Oesterreichische Nationalbank
ID : 15104

Informations de copyright

© 2024. The Author(s).

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Auteurs

Viktoria Knöbl (V)

Division of Vascular Surgery, Department of General Surgery, Medical University of Vienna, University Hospital Vienna, Vienna, Austria.

Lukas Maier (L)

Division of Vascular Surgery, Department of General Surgery, Medical University of Vienna, University Hospital Vienna, Vienna, Austria.

Stefan Grasl (S)

Division of Vascular Surgery, Department of General Surgery, Medical University of Vienna, University Hospital Vienna, Vienna, Austria.

Carmen Kratzer (C)

Division of Vascular Surgery, Department of General Surgery, Medical University of Vienna, University Hospital Vienna, Vienna, Austria.

Felix Winkler (F)

Division of Vascular Surgery, Department of General Surgery, Medical University of Vienna, University Hospital Vienna, Vienna, Austria.

Vanessa Eder (V)

Division of Vascular Surgery, Department of General Surgery, Medical University of Vienna, University Hospital Vienna, Vienna, Austria.

Hubert Hayden (H)

Division of Vascular Surgery, Department of General Surgery, Medical University of Vienna, University Hospital Vienna, Vienna, Austria.

Maria Amparo Sahagun Cortez (MA)

Division of Vascular Surgery, Department of General Surgery, Medical University of Vienna, University Hospital Vienna, Vienna, Austria.

Monika Sachet (M)

Division of Visceral Surgery, Department of General Surgery, Medical University of Vienna, University Hospital Vienna, Vienna, Austria.

Rudolf Oehler (R)

Division of Visceral Surgery, Department of General Surgery, Medical University of Vienna, University Hospital Vienna, Vienna, Austria.
Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria.

Sophie Frantal (S)

Austrian Breast & Colorectal Cancer Study Group (ABCSG), Vienna, Austria.

Christian Fesl (C)

Austrian Breast & Colorectal Cancer Study Group (ABCSG), Vienna, Austria.

Karin Zehetner (K)

Austrian Breast & Colorectal Cancer Study Group (ABCSG), Vienna, Austria.

Georg Pfeiler (G)

Austrian Breast & Colorectal Cancer Study Group (ABCSG), Vienna, Austria.
Department of Obstetrics and Gynecology, Medical University of Vienna, University Hospital Vienna, Vienna, Austria.

Rupert Bartsch (R)

Austrian Breast & Colorectal Cancer Study Group (ABCSG), Vienna, Austria.
Division of Oncology, Department of Medicine I, Medical University of Vienna, Vienna, Austria.

Florian Fitzal (F)

Division of Visceral Surgery, Department of General Surgery, Medical University of Vienna, University Hospital Vienna, Vienna, Austria.
Austrian Breast & Colorectal Cancer Study Group (ABCSG), Vienna, Austria.
Department of General Surgery, Hanusch Hospital, Vienna, Austria.

Christian F Singer (CF)

Austrian Breast & Colorectal Cancer Study Group (ABCSG), Vienna, Austria.
Department of Obstetrics and Gynecology, Medical University of Vienna, University Hospital Vienna, Vienna, Austria.

Martin Filipits (M)

Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria.
Austrian Breast & Colorectal Cancer Study Group (ABCSG), Vienna, Austria.
Center for Cancer Research, Medical University of Vienna, Vienna, Austria.

Michael Gnant (M)

Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria.
Austrian Breast & Colorectal Cancer Study Group (ABCSG), Vienna, Austria.

Christine Brostjan (C)

Division of Vascular Surgery, Department of General Surgery, Medical University of Vienna, University Hospital Vienna, Vienna, Austria. christine.brostjan@meduniwien.ac.at.

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