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Neurogenesis and angiogenesis are associated features of aggressive breast cancer

Wik, E.; Aziz, S.; Vethe, H.; Askeland, C.; Finne, K.; Knutsvik, G.; Winge, I.; Kruger, K.; Svanoe, A. A.; Birkeland, E.; Kjolle, S.; Davidsen, B.; Aas, T.; Stefansson, I. M.; Kleftogiannis, D.; Akslen, L. A.

2022-04-12 cancer biology
10.1101/2022.01.28.477898 bioRxiv
Show abstract

The tumor microenvironment (TME) is important for cancer growth and progression. While angiogenesis is an established hallmark of cancer, the role of nerve fibers is less studied. Here, we investigated neurogenesis and angiogenesis in breast cancer and found them to be closely associated. Single-cell based spatial mapping by imaging mass cytometry (IMC) indicated close proximity between neural and vascular structures. Subsequent validation by tissue-based markers of neurogenesis and angiogenesis, supported by proteomics and transcriptomics data of tissues and cell lines, supported a link between these processes. A consolidated neuro-angiogenic signature score was linked to high-grade breast cancer and reduced patient survival, also within the low-grade luminal tumor subgroup. Our findings support that neurogenesis and angiogenesis are related in aggressive breast cancer and might possibly improve tumor stratification and clinical management.

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