#METABOLOMICS WORKBENCH Givenchy_20250326_085227 DATATRACK_ID:5787 STUDY_ID:ST003857 ANALYSIS_ID:AN006338 PROJECT_ID:PR002414 VERSION 1 CREATED_ON April 11, 2025, 11:43 am #PROJECT PR:PROJECT_TITLE Spatial lipidomics with in situ segmentation for profiling the effect of the PR:PROJECT_TITLE drug doxorubicin on hepatoma carcinoma cell spheroids PR:PROJECT_TYPE Mass spectometry imaging PR:PROJECT_SUMMARY This study developed a simple method to analyze lipid changes in 3D liver cancer PR:PROJECT_SUMMARY cell spheroids after treatment with the drug doxorubicin (DOX). Using PR:PROJECT_SUMMARY high-resolution MALDI mass spectrometry imaging (MALDI-MSI) and tissue analysis, PR:PROJECT_SUMMARY the researchers mapped spatial lipid distribution across different regions of PR:PROJECT_SUMMARY the spheroids: the outer proliferative zone, intermediate quiescent zone, and PR:PROJECT_SUMMARY inner necrotic core. They identified distinct lipid alterations in each region PR:PROJECT_SUMMARY (71, 60, and 56 lipids, respectively), with glycerophospholipid metabolism being PR:PROJECT_SUMMARY the most affected pathway. These changes, particularly in PA, PC, PI, and SM PR:PROJECT_SUMMARY lipids, may inhibit necrotic core formation. This spatial lipidomics approach PR:PROJECT_SUMMARY provides insights into the effects of DOX and could help optimize personalized PR:PROJECT_SUMMARY cancer therapies using tumor models. PR:INSTITUTE Shanxi Medical University PR:DEPARTMENT School of Basic Medical Sciences, Academy of Medical Sciences, Research PR:DEPARTMENT Institute of Circadian Rhythm and Disease, Shanxi Medical University PR:LABORATORY Shanxi Provincial Key Laboratory of Nanoimaging and Drug-Loaded Preparations PR:LAST_NAME Zhao PR:FIRST_NAME Huifang PR:ADDRESS 56 Xinjian South Road, Yingze District, Taiyuan, Shanxi Province, China, PR:ADDRESS Taiyuan, Shanxi Province, 030012, China PR:EMAIL zhaohf1108@sxmu.edu.cn PR:PHONE 0351-4135004 PR:FUNDING_SOURCE National Natural Science Foundation of China #STUDY ST:STUDY_TITLE Spatial lipidomics with in situ segmentation for profiling the effect of the ST:STUDY_TITLE drug doxorubicin on hepatoma carcinoma cell spheroids ST:STUDY_TYPE Mammal ST:STUDY_SUMMARY This study developed a simple method to analyze lipid changes in 3D liver cancer ST:STUDY_SUMMARY cell spheroids after treatment with the drug doxorubicin (DOX). The changes of ST:STUDY_SUMMARY spatial lipid molecules in 3D Hep-G2 cell spheroids model before and after DOX ST:STUDY_SUMMARY treatment were analyzed by MALDI-MSI. Using high-resolution MALDI mass ST:STUDY_SUMMARY spectrometry imaging (MALDI-MSI) and tissue analysis, the researchers mapped ST:STUDY_SUMMARY spatial lipid distribution across different regions of the spheroids: the outer ST:STUDY_SUMMARY proliferative zone, intermediate quiescent zone, and inner necrotic core. They ST:STUDY_SUMMARY identified distinct lipid alterations in each region (71, 60, and 56 lipids, ST:STUDY_SUMMARY respectively), with glycerophospholipid metabolism being the most affected ST:STUDY_SUMMARY pathway. These changes, particularly in PA, PC, PI, and SM lipids, may inhibit ST:STUDY_SUMMARY necrotic core formation. This spatial lipidomics approach provides insights into ST:STUDY_SUMMARY the effects of DOX and could help optimize personalized cancer therapies using ST:STUDY_SUMMARY tumor models. ST:INSTITUTE Shanxi Medical University ST:DEPARTMENT School of Basic Medical Sciences, Academy of Medical Sciences, Research ST:DEPARTMENT Institute of Circadian Rhythm and Disease ST:LABORATORY Shanxi Provincial Key Laboratory of Nanoimaging and Drug-Loaded Preparations ST:LAST_NAME Zhao ST:FIRST_NAME Huifang ST:ADDRESS 56 Xinjian South Road, Yingze District, Taiyuan, Shanxi Province, China ST:EMAIL zhaohf1108@sxmu.edu.cn ST:PHONE 0351-4135004 #SUBJECT SU:SUBJECT_TYPE Cultured cells SU:SUBJECT_SPECIES Homo sapiens SU:TAXONOMY_ID 9606 #SUBJECT_SAMPLE_FACTORS: SUBJECT(optional)[tab]SAMPLE[tab]FACTORS(NAME:VALUE pairs separated by |)[tab]Raw file names and additional sample data SUBJECT_SAMPLE_FACTORS Human HepG2 cells 20240407-DOX-1-Ctrl-1-POS-10um Sample source:HepG2 cancer cells | Treatment:control RAW_FILE_NAME(Raw data file names)=20240407-DOX-1-Ctrl-1-POS-10um.d SUBJECT_SAMPLE_FACTORS Human HepG2 cells 20240407-DOX-1-Ctrl-2-POS-10um Sample source:HepG2 cancer cells | Treatment:control RAW_FILE_NAME(Raw data file names)=20240407-DOX-1-Ctrl-2-POS-10um.d SUBJECT_SAMPLE_FACTORS Human HepG2 cells 20240407-DOX-1-Ctrl-3-POS-10um Sample source:HepG2 cancer cells | Treatment:control RAW_FILE_NAME(Raw data file names)=20240407-DOX-1-Ctrl-3-POS-10um.d SUBJECT_SAMPLE_FACTORS Human HepG2 cells 20240407-DOX-1-POS-10um Sample source:HepG2 cancer cells | Treatment:DOX treatment RAW_FILE_NAME(Raw data file names)=20240407-DOX-1-POS-10um.d SUBJECT_SAMPLE_FACTORS Human HepG2 cells 20240407-DOX-2-POS-10um Sample source:HepG2 cancer cells | Treatment:DOX treatment RAW_FILE_NAME(Raw data file names)=20240407-DOX-2-POS-10um.d SUBJECT_SAMPLE_FACTORS Human HepG2 cells 20240407-DOX-3-POS-10um Sample source:HepG2 cancer cells | Treatment:DOX treatment RAW_FILE_NAME(Raw data file names)=20240407-DOX-3-POS-10um.d #COLLECTION CO:COLLECTION_SUMMARY Three-dimensional tumor cell spheroids (3D TCS) were cultured using ultra-low CO:COLLECTION_SUMMARY attachment (ULA) 96-well plates. In brief, each well was seeded with 100 µL of CO:COLLECTION_SUMMARY HepG2 cell suspension (~10,000 cells). After 48 hours of incubation, half of the CO:COLLECTION_SUMMARY culture medium was removed and replenished with fresh medium every two days. CO:COLLECTION_SUMMARY Following 7 days of culture, the 3D TCS were treated with DOX. The CO:COLLECTION_SUMMARY DOX-containing medium was then carefully aspirated, and the spheroids were CO:COLLECTION_SUMMARY rinsed three times with PBS. Finally, the 3D TCS were frozen at -80°C for CO:COLLECTION_SUMMARY further analysis. CO:SAMPLE_TYPE HepG2 human hepatocellular carcinoma cells CO:STORAGE_CONDITIONS -80℃ #TREATMENT TR:TREATMENT_SUMMARY Treatment Methods: The 3D tumor cell spheroids (TCS) were exposed to DOX at dose TR:TREATMENT_SUMMARY of 329.5 µM for 24 hours. Once the two-dimensional (2D) cells reached 80% TR:TREATMENT_SUMMARY confluence, they were transferred into the chamber shell from the ITO slide. TR:TREATMENT_SUMMARY Subsequently, the 2D cells were exposed to DOX at dose of 1797 nM for 24 hours. TR:TREATMENT_COMPOUND doxorubicin (DOX) TR:TREATMENT_DOSEDURATION 24 hours #SAMPLEPREP SP:SAMPLEPREP_SUMMARY The 3D tumor cell spheroids (TCS) were embedded in carboxymethylcellulose (CMC) SP:SAMPLEPREP_SUMMARY and stored at -20 °C for 40 min. The frozen cell spheroids were sectioned into SP:SAMPLEPREP_SUMMARY 10 µm thick slices at -20 °C by LEICA CM 1950 cryostat. The slices were SP:SAMPLEPREP_SUMMARY quickly affixed to the ITO slides. A final concentration of 15 mg/mL DHB SP:SAMPLEPREP_SUMMARY dissolved in ACN, water, and TFA (90:10:0.1, V/V/V) was served as the SP:SAMPLEPREP_SUMMARY positive-ion mode matrix and sprayed by the HTX™-Sprayer™ (HTX Technologies, SP:SAMPLEPREP_SUMMARY Carrboro, NC). SP:PROCESSING_STORAGE_CONDITIONS -80℃ SP:EXTRACT_STORAGE -80℃ #CHROMATOGRAPHY CH:CHROMATOGRAPHY_TYPE None (Direct infusion) CH:INSTRUMENT_NAME none CH:COLUMN_NAME none CH:SOLVENT_A none CH:SOLVENT_B none CH:FLOW_GRADIENT none CH:FLOW_RATE none CH:COLUMN_TEMPERATURE none #ANALYSIS AN:ANALYSIS_TYPE MS #MS MS:INSTRUMENT_NAME Bruker timsTOF fleX MS:INSTRUMENT_TYPE QTOF MS:MS_TYPE MALDI MS:ION_MODE POSITIVE MS:MS_COMMENTS Fifteen cycles of matrix were sprayed onto indium tin oxide (ITO) slides with a MS:MS_COMMENTS flow rate of 125 µL/min. The gas pressure used for spraying and the temperature MS:MS_COMMENTS were individually set to 10 psi and 60 °C. The EPSON Scan software was employed MS:MS_COMMENTS to scan the slides and obtain the raw images, which were analyzed using timsTOF MS:MS_COMMENTS fleX (Bruker Daltonics, Bremen, Germany) for MALDI-MSI analysis. The detection MS:MS_COMMENTS range of m/z was from 500 to 1250, and the spatial resolution of MALDI imaging MS:MS_COMMENTS was set to 10 μM. SCiLS Lab Version 2023b pro was applied to analyze the raw MS:MS_COMMENTS imaging data. The differential lipids between control and DOX treatment groups MS:MS_COMMENTS were screened based on the area under curve (AUC) value ≥ 0.75 and p value < MS:MS_COMMENTS 0.05. The structure of differential lipids was further identified. MS:MS_COMMENTS Identification of lipid molecules was based on the database within Bruker's MS:MS_COMMENTS MetaboScape 2024b software. #MS_METABOLITE_DATA MS_METABOLITE_DATA:UNITS Peak intensity MS_METABOLITE_DATA_START Samples 20240407-DOX-1-Ctrl-1-POS-10um 20240407-DOX-1-Ctrl-2-POS-10um 20240407-DOX-1-Ctrl-3-POS-10um 20240407-DOX-1-POS-10um 20240407-DOX-2-POS-10um 20240407-DOX-3-POS-10um Factors Sample source:HepG2 cancer cells | Treatment:control Sample source:HepG2 cancer cells | Treatment:control Sample source:HepG2 cancer cells | Treatment:control Sample source:HepG2 cancer cells | Treatment:DOX treatment Sample source:HepG2 cancer cells | Treatment:DOX treatment Sample source:HepG2 cancer cells | Treatment:DOX treatment 4S,5S-antillatoxin A 586 661 772 0 0 0 LysoPC(18:1) 0 0 0 0 0 0 Raffinose 0 0 0 0 0 0 4'-Methyl-(-)-epigallocatechin 7-glucuronide 342 0 316 0 0 0 Arg Tyr Gln Lys 0 0 346 0 0 0 POV-PC 836 780 969 0 0 0 Malyngamide J 0 315 385 0 0 0 Ser Lys Phe Leu Lys 417 662 789 0 0 344 PAz-PC 302 0 0 0 316 0 NCGC00384912-01_C38H61NO9_(3beta,9xi,16alpha)-3-[(2-Acetamido-2-deoxy-beta-D-glucopyranosyl)oxy]-16-hydroxyolean-12-en-28-oic acid 0 0 0 780 1003 961 phosphatidylethanolamine (15:0/16:0) 0 0 0 0 306 0 PA(16:0/18:2) 0 0 0 469 765 528 PA(16:0/18:1) 0 0 0 990 459 304 SM(d18:0/16:1) 0 0 0 0 0 0 PC(16:0/14:0) 1431 825 1220 0 0 0 NCGC00380734-01_C39H65NO10_2-{6-[5-Hydroxy-3-(2-hydroxy-2-propanyl)-6a,9b-dimethyldodecahydrocyclopenta[f]chromen-7-yl]-4a-methyl-3,4,4a,7,8,8a-hexahydro-2H-chromen-2-yl}-2-propanyl 2-acetamido-2-deoxy-6-O-methylhexopyranoside 0 507 667 0 0 0 PA(18:1/18:1) 427 0 0 0 0 0 SM(d18:1/16:0) 0 1018 0 324 0 0 PC(16:1/16:1) 5420 2535 3821 0 0 0 Ubiquinol 8 816 793 978 428 0 0 PC(14:0/18:1) 0 0 0 347 0 0 PE (15:0-18:1-d7)_791638 0 0 314 0 0 0 PC(18:0/14:0) 0 0 0 750 1140 1530 PC(20:2/14:0) 0 0 0 0 612 772 PC(18:1/16:0) 3683 1450 2312 0 0 495 PC(18:2/16:0) 8382 8082 9636 856 0 922 PC(18:3/18:0) 0 0 0 2438 3079 5857 PC(20:2/16:0) 1571 1095 1389 305 0 0 PC(20:0/16:1) 0 0 0 0 0 0 PC(20:3/16:1) 2316 1610 1979 0 0 0 SM(d18:1/22:0) 0 0 0 0 0 0 PC(22:2/16:1) 462 302 441 0 0 0 SM(d18:1/24:1) 0 0 0 0 0 0 PC(18:1/20:3) 0 0 0 1373 1607 3857 SM(d18:0/24:1) 390 0 0 5373 8978 8366 SM(d18:0/24:0) 0 0 0 0 0 0 TG(18:1/14:0/18:1) 0 0 0 761 1283 1647 TG(18:0/14:0/18:1) 369 0 328 0 0 0 TG(16:0/18:0/18:2) 0 0 0 728 1520 2006 MS_METABOLITE_DATA_END #METABOLITES METABOLITES_START metabolite_name m/z 4S,5S-antillatoxin A 504.33865 LysoPC(18:1) 522.34911 Raffinose 527.15183 4'-Methyl-(-)-epigallocatechin 7-glucuronide 535.09092 Arg Tyr Gln Lys 594.33254 POV-PC 594.36919 Malyngamide J 608.38422 Ser Lys Phe Leu Lys 622.40038 PAz-PC 666.42622 NCGC00384912-01_C38H61NO9_(3beta,9xi,16alpha)-3-[(2-Acetamido-2-deoxy-beta-D-glucopyranosyl)oxy]-16-hydroxyolean-12-en-28-oic acid 676.44671 phosphatidylethanolamine (15:0/16:0) 678.49856 PA(16:0/18:2) 695.45388 PA(16:0/18:1) 697.46807 SM(d18:0/16:1) 703.5663 PC(16:0/14:0) 706.52931 NCGC00380734-01_C39H65NO10_2-{6-[5-Hydroxy-3-(2-hydroxy-2-propanyl)-6a,9b-dimethyldodecahydrocyclopenta[f]chromen-7-yl]-4a-methyl-3,4,4a,7,8,8a-hexahydro-2H-chromen-2-yl}-2-propanyl 2-acetamido-2-deoxy-6-O-methylhexopyranoside 708.47236 PA(18:1/18:1) 723.48437 SM(d18:1/16:0) 726.55215 PC(16:1/16:1) 730.52578 Ubiquinol 8 731.59753 PC(14:0/18:1) 732.54496 PE (15:0-18:1-d7)_791638 733.54851 PC(18:0/14:0) 734.55807 PC(20:2/14:0) 758.56026 PC(18:1/16:0) 760.5755 PC(18:2/16:0) 780.54204 PC(18:3/18:0) 784.57072 PC(20:2/16:0) 786.59141 PC(20:0/16:1) 788.60445 PC(20:3/16:1) 804.54084 SM(d18:1/22:0) 809.64062 PC(22:2/16:1) 812.60192 SM(d18:1/24:1) 813.67456 PC(18:1/20:3) 832.57204 SM(d18:0/24:1) 837.67079 SM(d18:0/24:0) 839.68484 TG(18:1/14:0/18:1) 853.71452 TG(18:0/14:0/18:1) 855.72909 TG(16:0/18:0/18:2) 881.74574 METABOLITES_END #END