TY - JOUR
T1 - Single cell atlas identifies lipid-processing and immunomodulatory endothelial cells in healthy and malignant breast
AU - Geldhof, Vincent
AU - de Rooij, Laura P M H
AU - Sokol, Liliana
AU - Amersfoort, Jacob
AU - De Schepper, Maxim
AU - Rohlenova, Katerina
AU - Hoste, Griet
AU - Vanderstichele, Adriaan
AU - Delsupehe, Anne-Marie
AU - Isnaldi, Edoardo
AU - Dai, Naima
AU - Taverna, Federico
AU - Khan, Shawez
AU - Truong, Anh-Co K
AU - Teuwen, Laure-Anne
AU - Richard, François
AU - Treps, Lucas
AU - Smeets, Ann
AU - Nevelsteen, Ines
AU - Weynand, Birgit
AU - Vinckier, Stefan
AU - Schoonjans, Luc
AU - Kalucka, Joanna
AU - Desmedt, Christine
AU - Neven, Patrick
AU - Mazzone, Massimiliano
AU - Floris, Giuseppe
AU - Punie, Kevin
AU - Dewerchin, Mieke
AU - Eelen, Guy
AU - Wildiers, Hans
AU - Li, Xuri
AU - Luo, Yonglun
AU - Carmeliet, Peter
N1 - © 2022. The Author(s).
PY - 2022/9/20
Y1 - 2022/9/20
N2 - Since a detailed inventory of endothelial cell (EC) heterogeneity in breast cancer (BC) is lacking, here we perform single cell RNA-sequencing of 26,515 cells (including 8433 ECs) from 9 BC patients and compare them to published EC taxonomies from lung tumors. Angiogenic ECs are phenotypically similar, while other EC subtypes are different. Predictive interactome analysis reveals known but also previously unreported receptor-ligand interactions between ECs and immune cells, suggesting an involvement of breast EC subtypes in immune responses. We also identify a capillary EC subtype (LIPEC (Lipid Processing EC)), which expresses genes involved in lipid processing that are regulated by PPAR-γ and is more abundant in peri-tumoral breast tissue. Retrospective analysis of 4648 BC patients reveals that treatment with metformin (an indirect PPAR-γ signaling activator) provides long-lasting clinical benefit and is positively associated with LIPEC abundance. Our findings warrant further exploration of this LIPEC/PPAR-γ link for BC treatment.
AB - Since a detailed inventory of endothelial cell (EC) heterogeneity in breast cancer (BC) is lacking, here we perform single cell RNA-sequencing of 26,515 cells (including 8433 ECs) from 9 BC patients and compare them to published EC taxonomies from lung tumors. Angiogenic ECs are phenotypically similar, while other EC subtypes are different. Predictive interactome analysis reveals known but also previously unreported receptor-ligand interactions between ECs and immune cells, suggesting an involvement of breast EC subtypes in immune responses. We also identify a capillary EC subtype (LIPEC (Lipid Processing EC)), which expresses genes involved in lipid processing that are regulated by PPAR-γ and is more abundant in peri-tumoral breast tissue. Retrospective analysis of 4648 BC patients reveals that treatment with metformin (an indirect PPAR-γ signaling activator) provides long-lasting clinical benefit and is positively associated with LIPEC abundance. Our findings warrant further exploration of this LIPEC/PPAR-γ link for BC treatment.
KW - Breast Neoplasms/pathology
KW - Endothelial Cells/pathology
KW - Female
KW - Humans
KW - Immunity
KW - Ligands
KW - Lipids
KW - Metformin/pharmacology
KW - PPAR gamma/genetics
KW - RNA
KW - Retrospective Studies
UR - http://www.scopus.com/inward/record.url?scp=85138160850&partnerID=8YFLogxK
U2 - 10.1038/s41467-022-33052-y
DO - 10.1038/s41467-022-33052-y
M3 - Journal article
C2 - 36127427
SN - 2041-1722
VL - 13
SP - 5511
JO - Nature Communications
JF - Nature Communications
IS - 1
M1 - 5511
ER -