| 2015 |
LPCAT3 catalyzes the incorporation of arachidonate into membrane phospholipids and is required for triglyceride secretion. Intestine-specific or liver-specific Lpcat3 knockout mice show reduced plasma triglycerides, enterocyte lipid accumulation, and secretion of lipid-poor VLDL lacking arachidonoyl phospholipids. Mechanistic studies showed that Lpcat3 activity impacts membrane lipid mobility in living cells, providing a biophysical basis for arachidonoyl phospholipid requirements in lipoprotein lipidation. |
Tissue-specific knockout mice (intestine and liver), fluorescence microscopy for membrane lipid mobility (FRAP), lipidomics, plasma lipid measurements, VLDL characterization |
eLife |
High |
25806685
|
| 2016 |
Intestine-specific Lpcat3 deficiency significantly reduces polyunsaturated phosphatidylcholines in enterocyte plasma membranes and reduces membrane levels of lipid transporters NPC1L1, CD36, ABCA1, and ABCG8, thereby reducing lipid absorption, cholesterol secretion, and plasma triglyceride, cholesterol, and phospholipid levels. Liver-specific Lpcat3 deficiency only reduces plasma triglyceride without other lipid changes or hepatic lipid accumulation. Small intestinal Lpcat3 deficiency has a dominant effect on plasma lipid metabolism compared to liver deficiency. |
Inducible intestine-specific (villin-Cre-ER(T2)) and liver-specific (AAV-Cre) Lpcat3 knockout mice, plasma lipid measurements, membrane protein quantification, lipid absorption assays |
The Journal of biological chemistry |
High |
26828064
|
| 2010 |
LPCAT3 is a direct transcriptional target of the liver X receptor (LXR). A functional LXR response element (LXRE) was identified in the LPCAT3 promoter; LXR agonist T0901317 induces LPCAT3 expression in chicken and human hepatoma cells, and transactivation and EMSA assays confirmed direct LXR binding to the LXRE. |
Transcriptome profiling, in silico LXRE search, transactivation assays, electrophoretic mobility shift assay (EMSA), treatment with LXR agonist T0901317 |
Gene |
High |
20837115
|
| 2018 |
LPCAT3 deficiency in macrophages causes major reductions in arachidonate content of phosphatidylcholines, phosphatidylethanolamines, and plasmalogens, alters cholesterol homeostasis (increased free-to-esterified cholesterol ratio, reduced cholesterol efflux), and inhibits LXR-regulated pathways including decreased Abca1, Abcg1, and ApoE mRNA. Hematopoietic LPCAT3 deficiency accelerates atherosclerosis in Ldlr-/- mice. |
Lpcat3-/- mice, bone marrow transplantation into Ldlr-/- mice, lipidomics, cholesterol efflux assays, qRT-PCR for LXR target genes, atherosclerotic lesion quantification |
Atherosclerosis |
High |
29866392
|
| 2022 |
Small-molecule inhibitors of LPCAT3, discovered by high-throughput screening, inhibit LPCAT3 activity in a biphasic manner possibly reflecting differential activity at each subunit of an LPCAT3 homodimer. These inhibitors cause rapid suppression of C20:4 phospholipids and corresponding increases in C22:4 phospholipids in human cells, mirroring LPCAT3-null cells, and confer partial but incomplete protection from ferroptosis. |
High-throughput enzymatic screening, cell-based lipid profiling (lipidomics), LPCAT3-null cell comparison, ferroptosis assays |
ACS chemical biology |
High |
35658397
|
| 2020 |
LPCAT3 incorporates arachidonoyl (C20:4) chains into phosphatidylserine (PS) in the brain. Genetic deletion of LPCAT3 in mice lacking the lyso-PS lipase ABHD12 blocks accumulation of C20:4 PS in the brain but produces hyper-increases in lyso-PS levels. These lipid changes correlate with exacerbated auditory dysfunction and brain microgliosis in mice lacking both ABHD12 and LPCAT3, revealing that ABHD12 and LPCAT3 coordinately regulate lyso-PS and C20:4 PS in the CNS. |
Double-knockout mice (Abhd12-/-; Lpcat3-/-), brain lipidomics, auditory function testing, brain microgliosis histology |
Biochemistry |
High |
32364701
|
| 2016 |
Liver-specific overexpression of LPCAT3 (converting lysophosphatidylcholine to phosphatidylcholine) alleviates lysophospholipid inhibition of fatty acid β-oxidation in hepatocytes, improves postprandial hyperglycemia and glucose tolerance, reduces VLDL production, and elevates large apoE-rich HDL in plasma. |
Adenovirus-mediated hepatic overexpression in C57BL/6 mice, glucose tolerance tests after lipid-glucose mixed meal, VLDL/HDL characterization, fatty acid β-oxidation assays in hepatocytes |
Nutrition & diabetes |
Medium |
27110687
|
| 2023 |
LPCAT3 transcription is regulated by YAP, ZEB, and EP300. ZEB directly binds the LPCAT3 promoter in the -1600 to -1401 nt region in a YAP-dependent manner; YAP and ZEB interact via ZEB's zinc-finger cluster domain and YAP's WW domain; EP300 binds YAP via its Bromo domain and ZEB via its CBP/p300-HAT domain, and induces H3K27Ac at the LPCAT3 locus. LPCAT3 and ACSL4 sensitize lung adenocarcinoma cells to ferroptosis. |
ChIP assays, luciferase reporter assays, domain mutagenesis, Co-IP, LPCAT3/ACSL4 overexpression and knockout in LUAD cell lines and xenograft models |
Antioxidants & redox signaling |
Medium |
37166352
|
| 2024 |
MALT1 upregulates LPCAT3 expression in chondrocytes via c-Myc, driving incorporation of arachidonic acid into membranes and subsequent eicosanoid production, MMP3 and ADAMTS5 expression, and cytokine secretion. Pharmacological inhibition of MALT1 or siRNA knockdown of LPCAT3 suppresses IL-1β-induced cartilage catabolism and attenuates osteoarthritis in a mouse DMM model. |
MALT1 overexpression/pharmacological inhibition in chondrocytes and human cartilage explants, LPCAT3 siRNA-lipid nanoparticles, c-Myc inhibition, DMM mouse model, cytokine/eicosanoid measurements |
Cell communication and signaling |
Medium |
38519981
|
| 2024 |
LPCAT3 is transcriptionally regulated by USF2 in the context of sepsis-induced acute kidney injury. USF2 binds the LPCAT3 promoter (confirmed by ChIP-qPCR and dual-luciferase assay) to upregulate LPCAT3, which promotes ferroptosis via the NRF2/HO-1/GPX4 pathway. LPCAT3 knockdown in vivo ameliorates sepsis-AKI. |
ChIP-qPCR, dual-luciferase reporter assay, LPCAT3 knockdown (siRNA and AAV-shRNA in vivo), LPS-induced AKI model, ferroptosis marker quantification |
Shock |
Medium |
40138726
|
| 2025 |
METTL14 (an m6A writer) promotes LPCAT3 mRNA m6A methylation, increasing LPCAT3 mRNA stability and expression, which drives ferroptosis in sepsis-induced AKI. METTL14 knockdown reduces m6A and mRNA levels of LPCAT3, and LPCAT3 overexpression reverses the ferroptosis-protective effects of METTL14 silencing. |
Me-RIP assay for m6A on LPCAT3 mRNA, RIP assay, dual-luciferase reporter assay, siRNA knockdown of METTL14, LPCAT3 overexpression rescue, LPS-induced AKI model in vitro and in vivo |
Molecular genetics and genomics |
Medium |
39836248
|
| 2024 |
IFN-γ-induced STAT1-IRF1 signaling upregulates LPCAT3 expression, and LPCAT3 knockdown impairs ferroptosis induced by mefloquine combined with IFN-γ in melanoma and lung cancer cells, establishing LPCAT3 as a downstream effector of the IFN-γ-STAT1-IRF1 pathway in ferroptosis sensitization. |
RNA sequencing, qRT-PCR, western blotting, ChIP-qPCR, LPCAT3 knockdown, cytotoxicity and ferroptosis assays, animal experiments |
Journal for immunotherapy of cancer |
Medium |
38471712
|
| 2023 |
Coronaviral main protease (Mpro) of PEDV and MERS-CoV (but not HCoV-OC43 or HCoV-HKU1) cleaves LPCAT3 independently of Mpro catalytic activity. LPCAT3 cleavage by Mpro induces ER stress (upregulation of CHOP and GRP78), suggesting a mechanism for gastrointestinal symptoms in coronavirus infections. |
Exogenous gene expression of Mpro, protease inhibitor experiments, mutagenesis of Mpro catalytic site, qRT-PCR, gene knockdown, western blotting |
Viruses |
Medium |
37632038
|
| 2024 |
LPCAT3 is the acyltransferase responsible for generating 12-LOX-derived diacyl enzymatically oxygenated phospholipids (eoxPL) in platelets. LPCAT3 inhibition selectively prevented 12-LOX-derived diacyl-eoxPL generation in a cell-free acyltransferase assay, identifying LPCAT3 as a key enzyme in procoagulant phospholipid biosynthesis. |
LPCAT3 pharmacological inhibitor, cell-free acyltransferase assay, platelet lipidomics, ASCVD patient cohort platelet measurements |
Journal of lipid research |
Medium |
39674322
|
| 2025 |
LPCAT3 deficiency in liver (liver-specific knockout) reduces accumulation of oxidized and hydroperoxidized phospholipids and ameliorates acetaminophen-induced acute liver injury, demonstrating that LPCAT3-generated arachidonoyl phospholipids are substrates for oxidative liver injury. LPCAT3 deficiency also promotes APAP detoxification by facilitating glutathione conjugation of NAPQI. |
Liver-specific Lpcat3 knockout mice, APAP overdose model, lipidomics (oxidized/hydroperoxidized PL quantification), serum liver injury markers, survival analysis, glutathione conjugation assay |
FASEB journal |
High |
38019192
|
| 2022 |
LPCAT3 deficiency in adipocytes increases NOX4 translocation to lipid rafts, facilitating NOX enzyme activity and reactive oxygen species generation, which promotes palmitic acid-induced inflammation and lipolysis. LPCAT3 overexpression has anti-inflammatory and anti-lipolytic effects in adipocytes by reducing membrane polyunsaturated phosphatidylcholine content. |
Lpcat3 knockdown and overexpression in 3T3-L1 adipocytes, NOX4 localization by lipid raft fractionation, ROS measurement, lipid profiling, inflammatory cytokine assays |
Acta biochimica et biophysica Sinica |
Medium |
36331295
|
| 2025 |
LPCAT3 stabilizes ABCA1 protein through post-translational regulation in chondrocytes. Gene silencing of LPCAT3 downregulates ABCA1 protein through ubiquitination and degradation, which increases intracellular retention of methylprednisolone. LXR agonist T0901317 reverses LPCAT3-induced changes in ABCA1 and steroid retention. |
LPCAT3 siRNA in chondrocytes, ABCA1 protein stability assays, ubiquitination assays, intracellular steroid retention measurements, intra-articular siRNA liposome administration in DMM mouse model |
International journal of biological macromolecules |
Medium |
41072700
|
| 2025 |
LPCAT3 silencing in endothelial cells inhibits TNFα-induced translocation and ubiquitination of TNFR1-signaling complex into lipid rafts, attenuating NF-κB activation, cell-adhesion molecule synthesis, cytokine production, and leukocyte adhesion. LPCAT3 controls lipid raft composition by incorporating arachidonic acid, and its inhibition results in replacement of AA with EPA/DHA in PC and PE, reducing eicosanoid production. |
RNAi-dependent LPCAT3 silencing in endothelial cells, lipid raft isolation, TNFR1 localization assays, NF-κB activation assays, LPCAT3 siRNA lipid nanoparticles in high-fat diet atherosclerosis mouse model |
Inflammation research |
Medium |
41236634
|
| 2025 |
LPCAT3 deficiency in liver triggers upregulation of protein disulfide isomerase (Pdi) and endoplasmic reticulum oxidoreductase 1 alpha (Ero1α), leading to mitochondrial accumulation of H2O2 and Ca2+ and impaired mitochondrial oxidative phosphorylation, accelerating MASH-to-HCC progression. Supplementing PC(18:2/18:2) in LPCAT3-knockdown cells reversed Pdi-Ero1α upregulation and alleviated mitochondrial dysfunction. |
Liver-specific Lpcat3 knockout mice, MASH-HCC diet model, lipidomics, proteomics, AAV-mediated LPCAT3 overexpression, mitochondrial function assays, PC(18:2/18:2) supplementation rescue experiment |
Journal of advanced research |
Medium |
41951050
|
| 2025 |
LPCAT3 acts as a cold-regulated O-acyltransferase driving selective accumulation of arachidonoyl-phosphatidylethanolamine (AA-PE) in brown adipose tissue mitochondria. AA-PE partitions at the COX4I1 interface of Cytochrome c oxidase, enhancing electron transport chain efficiency. Fat-specific Lpcat3-knockout mice have defective BAT thermogenesis and cold tolerance despite intact β-adrenergic signaling and UCP1 function. |
Fat-specific Lpcat3 knockout mice, cold exposure experiments, lipid-based proteomics, molecular dynamics simulations, bioenergetic analyses, mitochondrial fractionation |
bioRxivpreprint |
Medium |
|
| 2024 |
PPARγ supports hypertrophic expansion of adipose tissue through transcriptional control of LPCAT3, which enriches diet-derived omega-6 PUFAs (particularly arachidonoyl-PE) in the phospholipidome at the ER-lipid droplet interface. Adipocyte-specific Lpcat3 knockout leads to dysfunctional triglyceride storage, aberrant lipolysis, and a futile lipid cycle that increases energy expenditure. |
Adipocyte-specific Lpcat3 knockout mice, high-fat diet feeding, lipidomics at ER-lipid droplet interface, ATGL-dependent hydrolysis assays, energy expenditure measurements |
bioRxivpreprint |
Medium |
|
| 2025 |
In endometrial stromal cells (hESCs), LPCAT3 knockdown reduces decidualization markers, halts epithelioid-like morphological changes, and decreases PC(16:0-20:4) levels. Reintroducing PC(16:0-20:4) rescues the decidualization defect and premature senescence caused by LPCAT3 knockdown, identifying PC(16:0-20:4) as the key lipid product of LPCAT3 mediating hESC decidualization. |
LPCAT3 knockdown and overexpression in hESCs, phospholipid profiling (lipidomics), PC(16:0-20:4) supplementation rescue, decidualization marker quantification, cell cycle analysis, senescence assays |
FASEB journal |
Medium |
40503597
|
| 2024 |
SOX4 binds the LPCAT3 promoter and enhances its transcription (confirmed by ChIP and dual-luciferase assay), upregulating LPCAT3 to promote ferroptosis in caerulein-induced acute pancreatitis. LPCAT3 overexpression partially reverses the protective effects of SOX4 knockdown. |
ChIP assay, dual-luciferase reporter assay, shRNA-mediated SOX4 knockdown, LPCAT3 overexpression rescue, ferroptosis marker quantification in pancreatic acinar cells |
Digestive diseases and sciences |
Medium |
42217103
|