Lymphatic endothelial-like cells promote glioblastoma stem cell growth through cytokine-driven cholesterol metabolism
- PMID: 38172338
- DOI: 10.1038/s43018-023-00658-0
Lymphatic endothelial-like cells promote glioblastoma stem cell growth through cytokine-driven cholesterol metabolism
Abstract
Glioblastoma is the most lethal primary brain tumor with glioblastoma stem cells (GSCs) atop a cellular hierarchy. GSCs often reside in a perivascular niche, where they receive maintenance cues from endothelial cells, but the role of heterogeneous endothelial cell populations remains unresolved. Here, we show that lymphatic endothelial-like cells (LECs), while previously unrecognized in brain parenchyma, are present in glioblastomas and promote growth of CCR7-positive GSCs through CCL21 secretion. Disruption of CCL21-CCR7 paracrine communication between LECs and GSCs inhibited GSC proliferation and growth. LEC-derived CCL21 induced KAT5-mediated acetylation of HMGCS1 on K273 in GSCs to enhance HMGCS1 protein stability. HMGCS1 promoted cholesterol synthesis in GSCs, favorable for tumor growth. Expression of the CCL21-CCR7 axis correlated with KAT5 expression and HMGCS1K273 acetylation in glioblastoma specimens, informing patient outcome. Collectively, glioblastomas contain previously unrecognized LECs that promote the molecular crosstalk between endothelial and tumor cells, offering potentially alternative therapeutic strategies.
© 2024. The Author(s), under exclusive licence to Springer Nature America, Inc.
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- CA217065/U.S. Department of Health & Human Services | NIH | National Cancer Institute (NCI)
- 82273255/National Natural Science Foundation of China (National Science Foundation of China)
- CA243296/U.S. Department of Health & Human Services | NIH | National Cancer Institute (NCI)
- AG072298/U.S. Department of Health & Human Services | NIH | National Institute on Aging (U.S. National Institute on Aging)
- 82273473/National Natural Science Foundation of China (National Science Foundation of China)
- NS110776/U.S. Department of Health & Human Services | NIH | National Institute of Neurological Disorders and Stroke (NINDS)
- CA094186/U.S. Department of Health & Human Services | NIH | National Cancer Institute (NCI)
- CA197718/U.S. Department of Health & Human Services | NIH | National Cancer Institute (NCI)
- 2022YQ062/Shanghai Municipal Health Bureau (Shanghai Municipal Public Health Bureau)
- R01 NS110776/NS/NINDS NIH HHS/United States
- DK130227/U.S. Department of Health & Human Services | NIH | National Institute of Diabetes and Digestive and Kidney Diseases (National Institute of Diabetes & Digestive & Kidney Diseases)
- NS103434/U.S. Department of Health & Human Services | NIH | National Institute of Neurological Disorders and Stroke (NINDS)
- 81822034/National Natural Science Foundation of China (National Science Foundation of China)
- CA268634/U.S. Department of Health & Human Services | NIH | National Cancer Institute (NCI)
- 81821002/National Natural Science Foundation of China (National Science Foundation of China)
- CA238662/U.S. Department of Health & Human Services | NIH | National Cancer Institute (NCI)
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