#METABOLOMICS WORKBENCH cendalfr_20240411_081443 DATATRACK_ID:4771 STUDY_ID:ST003169 ANALYSIS_ID:AN005200 PROJECT_ID:PR001970 VERSION 1 CREATED_ON April 11, 2024, 8:27 am #PROJECT PR:PROJECT_TITLE Releasing the mitochondrial respiration brake MCJ/DnaJC15 enhances CD8 CAR-T PR:PROJECT_TITLE cell therapy efficacy PR:PROJECT_SUMMARY Metabolism of chimeric antigen receptor (CAR) T cells is emerging as an PR:PROJECT_SUMMARY important area to improve CAR-T cell therapy in cancer treatment. Mitochondrial PR:PROJECT_SUMMARY respiration is essential for survival and function of CAR-T cells, but PR:PROJECT_SUMMARY developing strategies to specifically enhance mitochondrial respiration has been PR:PROJECT_SUMMARY challenging. Here we identify MCJ/DnaJC15, an endogenous negative regulator of PR:PROJECT_SUMMARY mitochondrial Complex I, as a metabolic target to enhance mitochondrial PR:PROJECT_SUMMARY respiration in CD8 CAR-T cells. Loss of MCJ in CD8 CAR-T cells increases their PR:PROJECT_SUMMARY in vitro and in vivo efficacy against mouse B cell leukemias. MCJ deficiency in PR:PROJECT_SUMMARY TCR- specific CD8 cells also increases their efficacy against solid tumors in PR:PROJECT_SUMMARY vivo. Furthermore, we reveal that human CD8 cells express MCJ and that silencing PR:PROJECT_SUMMARY MCJ expression increases mitochondrial metabolism and anti-tumor activity of PR:PROJECT_SUMMARY human CAR-T cells. Thus, targeting MCJ to enhance mitochondrial metabolism is a PR:PROJECT_SUMMARY promising therapeutic strategy to improve the efficacy of adoptive T cell PR:PROJECT_SUMMARY therapies. PR:INSTITUTE University of Colorado School of Medicine PR:LABORATORY Laboratory of Angelo D'Alessandro in collaboration with Mercedes Rincon PR:LAST_NAME Cendali PR:FIRST_NAME Francesca PR:ADDRESS 13199 East Montview Boulevard, Aurora, CO, 80045, USA PR:EMAIL francesca.cendali@cuanschutz.edu PR:PHONE 3037246131 #STUDY ST:STUDY_TITLE Releasing the mitochondrial respiration brake MCJ/DnaJC15 enhances CD8 CAR-T ST:STUDY_TITLE cell therapy efficacy ST:STUDY_SUMMARY Metabolism of chimeric antigen receptor (CAR) T cells is emerging as an ST:STUDY_SUMMARY important area to improve CAR-T cell therapy in cancer treatment. Mitochondrial ST:STUDY_SUMMARY respiration is essential for survival and function of CAR-T cells, but ST:STUDY_SUMMARY developing strategies to specifically enhance mitochondrial respiration has been ST:STUDY_SUMMARY challenging. Here we identify MCJ/DnaJC15, an endogenous negative regulator of ST:STUDY_SUMMARY mitochondrial Complex I, as a metabolic target to enhance mitochondrial ST:STUDY_SUMMARY respiration in CD8 CAR-T cells. Loss of MCJ in CD8 CAR-T cells increases their ST:STUDY_SUMMARY in vitro and in vivo efficacy against mouse B cell leukemias. MCJ deficiency in ST:STUDY_SUMMARY TCR- specific CD8 cells also increases their efficacy against solid tumors in ST:STUDY_SUMMARY vivo. Furthermore, we reveal that human CD8 cells express MCJ and that silencing ST:STUDY_SUMMARY MCJ expression increases mitochondrial metabolism and anti-tumor activity of ST:STUDY_SUMMARY human CAR-T cells. Thus, targeting MCJ to enhance mitochondrial metabolism is a ST:STUDY_SUMMARY promising therapeutic strategy to improve the efficacy of adoptive T cell ST:STUDY_SUMMARY therapies. ST:INSTITUTE University of Colorado School of Medicine ST:LABORATORY Laboratory of Angelo D'Alessandro in collaboration with Mercedes Rincon ST:LAST_NAME Cendali ST:FIRST_NAME Francesca ST:ADDRESS 13199 East Montview Boulevard, Aurora, CO, 80045, USA ST:EMAIL francesca.cendali@cuanschutz.edu ST:PHONE 3037246131 #SUBJECT SU:SUBJECT_TYPE Cultured cells SU:SUBJECT_SPECIES Mus musculus #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 - 1 Factor:WT CART in vivo | Sample source:Cells RAW_FILE_NAME(Raw File Name)=1 SUBJECT_SAMPLE_FACTORS - 2 Factor:WT CART in vivo | Sample source:Cells RAW_FILE_NAME(Raw File Name)=2 SUBJECT_SAMPLE_FACTORS - 3 Factor:WT CART in vivo | Sample source:Cells RAW_FILE_NAME(Raw File Name)=3 SUBJECT_SAMPLE_FACTORS - 4 Factor:MCJ KO CART in vivo | Sample source:Cells RAW_FILE_NAME(Raw File Name)=4 SUBJECT_SAMPLE_FACTORS - 5 Factor:MCJ KO CART in vivo | Sample source:Cells RAW_FILE_NAME(Raw File Name)=5 SUBJECT_SAMPLE_FACTORS - 6 Factor:MCJ KO CART in vivo | Sample source:Cells RAW_FILE_NAME(Raw File Name)=6 #COLLECTION CO:COLLECTION_SUMMARY The E2a cells (106) were cultured in CMM for no more than 2 passages before CO:COLLECTION_SUMMARY intravenous tail vail injection to B6 mice 3 days before CAR-T cell injection. CO:COLLECTION_SUMMARY The E2a-bearing mice were irradiated with 500cGy sublethal dosage the day before CO:COLLECTION_SUMMARY CAR-T cell injection. The murine CD8 CAR-T cells were generated and expanded CO:COLLECTION_SUMMARY with rhIL-2 (60 IU/ml) as described above. The expanded CD8 CAR-T cells were CO:COLLECTION_SUMMARY washed with PBS, and 106 CAR+ cells were injected into the E2a-bearing mice via CO:COLLECTION_SUMMARY intravenous tail vail injection. The mice were followed for survival with the CO:COLLECTION_SUMMARY humane end point of development of hind limb paralysis, or weight loss of more CO:COLLECTION_SUMMARY than 20% of the original weight, or signs of major discomfort as determined by CO:COLLECTION_SUMMARY the institutional veterinarian. CO:SAMPLE_TYPE T-cells #TREATMENT TR:TREATMENT_SUMMARY Metabolomics differences in this experiment are observed at baseline #SAMPLEPREP SP:SAMPLEPREP_SUMMARY CAR-T cells were isolated as described above either from in vitro culture or SP:SAMPLEPREP_SUMMARY from bone marrow harvested in an in vivo study. The cells were washed in PBS and SP:SAMPLEPREP_SUMMARY frozen at -80C until the assay is ready to run. Metabolites from cells were SP:SAMPLEPREP_SUMMARY extracted at 2x106 cells/ml at 4°C (30 min) in the presence of 5:3:2 SP:SAMPLEPREP_SUMMARY MeOH:MeCN:water (v/v/v). The samples were spun down and the resulting SP:SAMPLEPREP_SUMMARY supernatant was transferred to new tubes and dried under a vacuum. The resulting SP:SAMPLEPREP_SUMMARY residue was reconstituted in 0.1% formic acid at a 3x concentration, then SP:SAMPLEPREP_SUMMARY analyzed on a Thermo Vanquish UHPLC coupled to a Thermo Q Exactive MS as SP:SAMPLEPREP_SUMMARY previously described in detail. #CHROMATOGRAPHY CH:CHROMATOGRAPHY_SUMMARY Negative ion Mode CH:CHROMATOGRAPHY_TYPE Reversed phase CH:INSTRUMENT_NAME Exploris120 CH:COLUMN_NAME Phenomenex Kinetex C18 (150 x 2.1mm,1.7um) CH:SOLVENT_A 95% water/5% acetonitrile; 1 mM ammonium acetate CH:SOLVENT_B 95% acetonitrile/5% water; 1 mM ammonium acetate CH:FLOW_GRADIENT 0-0.5 min 0% B, 0.5-1.1 min 0-100% B, 1.1-2.75 min hold at 100% B, 2.75-3 min CH:FLOW_GRADIENT 100-0% B, 3-5 min hold at 0% B CH:FLOW_RATE 0.450ml/min CH:COLUMN_TEMPERATURE 45 #ANALYSIS AN:ANALYSIS_TYPE MS #MS MS:INSTRUMENT_NAME Thermo Q Exactive Orbitrap MS:INSTRUMENT_TYPE Orbitrap MS:MS_TYPE ESI MS:ION_MODE NEGATIVE MS:MS_COMMENTS Resolution 70,000, scan range 65-900 m/z, maximum injection time 200 ms, MS:MS_COMMENTS microscans 2, automatic gain control (AGC) 3 x 10^6 ions, source voltage 4.0 kV, MS:MS_COMMENTS capillary temperature 320 C, and sheath gas 45, auxiliary gas 15, and sweep gas MS:MS_COMMENTS 0 (all nitrogen). Data converted to mzXML using RawConverter. Metabolites were MS:MS_COMMENTS annotated and integrated using Maven in conjunction with the KEGG database. #MS_METABOLITE_DATA MS_METABOLITE_DATA:UNITS Peak Areas MS_METABOLITE_DATA_START Samples 1 2 3 4 5 6 Factors Factor:WT CART in vivo | Sample source:Cells Factor:WT CART in vivo | Sample source:Cells Factor:WT CART in vivo | Sample source:Cells Factor:MCJ KO CART in vivo | Sample source:Cells Factor:MCJ KO CART in vivo | Sample source:Cells Factor:MCJ KO CART in vivo | Sample source:Cells 3',5'-Cyclic AMP 300820.16 291389.66 283999.19 364222 413530.12 385803.25 UDP-glucose 78019.73 264155.34 188787.3 226078.61 118955.24 79944.06 ADP-D-ribose 30781.57 31617.88 20426.83 77489.49 29884.48 67544.46 Flavin mononucleotide 116998.47 63665.12 183561.33 16340.81 8665.42 82865.02 NAD+ 455241.22 475134 376562.84 431355.25 322604.38 308721.53 NADH 16624.96 20875.69 21708.31 25141.91 17288.89 21527.54 Phosphate 4708291.5 6032085.5 3931543.75 5765092 5028842 5412158 Diphosphate 239318.67 360335.62 183459.67 342133.66 268239.47 305427.28 D-Glucose 6532598.5 6874687.5 4593389.5 8340493.5 4728896 6785037.5 D-Fructose 1-6-bisphosphate 86957.12 123120.79 105511.62 117419.12 85078.4 39957.36 D-Glyceraldehyde 3-phosphate/Glycerone phosphate 11577917 12131144 10963801 10314201 10525097 9543872 2/3-Phospho-D-glycerate 128030.65 131101.64 16124.37 171737.69 66588.05 64000.11 Pyruvate 788084.44 764327.5 576449.06 730107.69 512558.25 573920.06 Lactate 24824090 22721558 14517621 18108718 19331342 11601363 Maltose 113289.34 122825.24 219278.3 17408.34 23193.05 66636.04 Mannitol 1752122.12 2208180.75 1009614.69 1603708.38 1605212.62 1215720.75 D-Ribose 188523.23 235587.89 118950.27 218383.62 133937.47 175212.58 Citrate 351997.97 395456.75 39168.57 318693.91 161904.8 187807.08 2-Oxoglutarate 82676.9 22868.48 15903.86 54510.99 87693.96 72807.1 Succinate 914513.5 1466651.62 766620.31 1040283.69 986377.44 969151.31 Fumarate 98240.48 194259.62 91462.41 160623.19 124196.01 102530.76 Malate 323225.22 254501.98 47477.34 256219.8 226898.81 193257.67 Glutathione 4450507.5 4735921 3779081.25 3976812 3853983.75 4707613.5 Glutathione disulfide 371886.5 571333.94 341167.12 340488.22 271317.78 193323.48 Dimethylglycine 271605.47 409256.66 232446.3 338687.66 325075.47 218092.42 3-Phosphonooxypyruvate 12572125 7406658.5 14424561 10828133 15684227 12670995 N-Acetylneuraminate 302473.34 296080.34 182300.88 302430.75 244089.98 179568.95 N-Glycoloyl-neuraminate 578931.44 757934.06 427743.03 709567.31 479860.53 317187.09 Thiocysteine 2737592.5 1500180.88 2448839.25 2005125.38 2784178.25 2608847.75 2-Aminomuconate 123057.24 159401.62 161439.28 170675.58 95521.85 121663.28 Hexanoic acid (caproate) 746891.31 1049169.38 961799.81 1987071.62 1722644 1411357.88 Heptanoic acid 465283.12 470386.75 531094.94 614395.44 569229.81 485931.97 Octanoic acid (caprylate) 1109976.38 1080138.62 1074314.62 1314804.25 1313111 1024136.31 Nonanoic acid (pelargonate) 10606719 11259147 13723145 14377468 15216276 11314125 Decanoic acid (caprate) 5107329.5 3797142.75 4907762.5 5416038.5 4476081.5 2461855.25 Dodecanoic acid 3431239 2237240.75 2911579.75 3453956 3732525.75 2788487.75 Tetradecanoic acid 4620953 4267733.5 3724754 6238420.5 5590310 5348239.5 Hexadecanoic acid 33964304 31077094 25996198 36264532 35238320 44074524 Octadecanoic acid 1723014.38 16486327 15357951 15804653 5443690.5 4279789.5 Hexadecenoic acid 2263770.5 1666643.62 1764144.38 2198247.25 2535006.75 1980509.62 Octadecenoic acid 1917746.5 1674860.12 1556654.88 1868171 1844765.12 1814959.62 Linoleate 517200.59 507455.84 508105 376877.12 493465.09 520202.09 Dodecanedioic acid 5190450.5 4577127.5 4802036 4328291.5 5174980 5433636 (8Z-11Z-14Z)-Icosatrienoic acid 63345.96 67534.84 79913.84 14210.91 24139.67 49462.86 MS_METABOLITE_DATA_END #METABOLITES METABOLITES_START metabolite_name CmpdID parent medRt 3',5'-Cyclic AMP C00575 328.04538 1.032 UDP-glucose C00029 565.047791 0.795 ADP-D-ribose C01882 558.064331 0.798 Flavin mononucleotide C00061 455.101807 0.691 NAD+ C00003 662.102051 0.834 NADH C00004 664.107178 0.838 Phosphate C00009 96.969635 1.175 Diphosphate C00013 176.935577 1.154 D-Glucose C00031 179.056107 0.663 D-Fructose 1-6-bisphosphate C00354 338.993134 0.661 D-Glyceraldehyde 3-phosphate/Glycerone phosphate C00118 168.989471 1.766 2/3-Phospho-D-glycerate C00631 184.985397 0.61 Pyruvate C00022 87.008774 0.662 Lactate C01432 89.024406 0.793 Maltose C00208 341.108063 0.698 Mannitol C00392 181.071747 0.664 D-Ribose C00121 149.045563 0.666 Citrate C00158 191.019714 0.632 2-Oxoglutarate C00026 145.014603 0.644 Succinate C00042 117.019394 0.797 Fumarate C00122 115.003708 0.811 Malate C00149 133.014008 0.644 Glutathione C00051 306.076599 0.795 Glutathione disulfide C00127 611.144775 0.796 Dimethylglycine C01026 102.056061 0.607 3-Phosphonooxypyruvate C03232 182.967133 0.744 N-Acetylneuraminate C00270 308.098907 0.639 N-Glycoloyl-neuraminate C03410 324.093781 0.623 Thiocysteine C01962 151.986206 0.743 2-Aminomuconate C02220 156.028748 0.668 Hexanoic acid (caproate) C01585 115.076462 1.871 Heptanoic acid C17714 129.092117 1.962 Octanoic acid (caprylate) C06423 143.107758 2.087 Nonanoic acid (pelargonate) C01601 157.123428 2.191 Decanoic acid (caprate) C01571 171.139053 2.268 Dodecanoic acid C02679 199.17038 2.47 Tetradecanoic acid C06424 227.20166 2.742 Hexadecanoic acid C00249 255.232941 3.154 Octadecanoic acid C01530 283.264282 3.776 Hexadecenoic acid C08362 253.217285 2.766 Octadecenoic acid C00712 281.249115 3.189 Linoleate C01595 279.232971 2.843 Dodecanedioic acid C02678 229.144531 2.121 (8Z-11Z-14Z)-Icosatrienoic acid C03242 305.248688 2.937 METABOLITES_END #END