Back to Search
Start Over
Synthetic alkyl-ether-lipid promotes TRPV2 channel trafficking trough PI3K/Akt-girdin axis in cancer cells and increases mammary tumour volume
- Source :
- Cell Calcium, Cell Calcium, 2021, 97, pp.102435. ⟨10.1016/j.ceca.2021.102435⟩, Cell Calcium, Elsevier, 2021, 97, pp.102435. ⟨10.1016/j.ceca.2021.102435⟩
- Publication Year :
- 2021
- Publisher :
- HAL CCSD, 2021.
-
Abstract
- International audience; The Transient Receptor Potential Vanilloid type 2 (TRPV2) channel is highly selective for Ca2+ and can be activated by lipids, such as LysoPhosphatidylCholine (LPC). LPC analogues, such as the synthetic alkyl-ether-lipid edelfosine or the endogenous alkyl-ether-lipid Platelet Activating Factor (PAF), modulates ion channels in cancer cells. This opens the way to develop alkyl-ether-lipids for the modulation of TRPV2 in cancer. Here, we investigated the role of 2-Acetamido-2-Deoxy-l-O-Hexadecyl-rac-Glycero-3-PhosphatidylCholine (AD-HGPC), a new alkyl-ether-lipid (LPC analogue), on TRPV2 trafficking and its impact on Ca2+ -dependent cell migration. The effect of AD-HGPC on the TRPV2 channel and tumour process was further investigated using calcium imaging and an in vivo mouse model. Using molecular and pharmacological approaches, we dissected the mechanism implicated in alkyl-ether-lipids sensitive TRPV2 trafficking. We found that TRPV2 promotes constitutive Ca2+ entry, leading to migration of highly metastatic breast cancer cell lines through the PI3K/Akt-Girdin axis. AD-HGPC addresses the functional TRPV2 channel in the plasma membrane through Golgi stimulation and PI3K/Akt/Rac-dependent cytoskeletal reorganization, leading to constitutive Ca2+ entry and breast cancer cell migration (without affecting the development of metastasis), in a mouse model. We describe, for the first time, the biological role of a new alkyl-ether-lipid on TRPV2 channel trafficking in breast cancer cells and highlight the potential modulation of TRPV2 by alkyl-ether-lipids as a novel avenue for research in the treatment of metastatic cancer.
- Subjects :
- 0301 basic medicine
Physiology
[SDV]Life Sciences [q-bio]
Metastasis
03 medical and health sciences
Transient receptor potential channel
chemistry.chemical_compound
0302 clinical medicine
medicine
[CHIM]Chemical Sciences
Molecular Biology
Protein kinase B
PI3K/AKT/mTOR pathway
Constitutive Ca2+ entry
Chemistry
[CHIM.ORGA]Chemical Sciences/Organic chemistry
Breast cancer cell migration
Cancer
Cell migration
Cell Biology
medicine.disease
3. Good health
Cell biology
TRPV2
030104 developmental biology
Cancer cell
lipids (amino acids, peptides, and proteins)
Alkyl-ether-lipid
030217 neurology & neurosurgery
Edelfosine
Subjects
Details
- Language :
- English
- ISSN :
- 01434160 and 15321991
- Database :
- OpenAIRE
- Journal :
- Cell Calcium, Cell Calcium, 2021, 97, pp.102435. ⟨10.1016/j.ceca.2021.102435⟩, Cell Calcium, Elsevier, 2021, 97, pp.102435. ⟨10.1016/j.ceca.2021.102435⟩
- Accession number :
- edsair.doi.dedup.....3b589885907e9b5087bfabdb1931bc63