Summary of Study ST002398
This data is available at the NIH Common Fund's National Metabolomics Data Repository (NMDR) website, the Metabolomics Workbench, https://www.metabolomicsworkbench.org, where it has been assigned Project ID PR001545. The data can be accessed directly via it's Project DOI: 10.21228/M8099D This work is supported by NIH grant, U2C- DK119886.
See: https://www.metabolomicsworkbench.org/about/howtocite.php
This study contains a large results data set and is not available in the mwTab file. It is only available for download via FTP as data file(s) here.
| Study ID | ST002398 |
| Study Title | Lipidomics of Tango2 Deficient and Wildtype Zebrafish Muscle Tissue |
| Study Type | Untargeted Lipidomics |
| Study Summary | Rhabdomyolysis is a clinical emergency characterized by severe muscle damage, resulting in the release of intracellular muscle components which leads to myoglobinuria and in severe cases, acute kidney failure. Rhabdomyolysis is caused by genetic factors that are linked to increased disease susceptibility in response to extrinsic triggers. Recessive mutations in TANGO2 result in episodic rhabdomyolysis, metabolic crises, encephalopathy, and cardiac arrhythmia. The underlying mechanism contributing to disease onset in response to specific triggers remains unclear. To address these challenges, we created a zebrafish model of Tango2 deficiency. Here we demonstrate that the loss of Tango2 in zebrafish results in growth defects, early lethality, and increased susceptibility of muscle defects similar to TANGO2 patients. Detailed analyses of skeletal muscle revealed defects in the sarcoplasmic reticulum and mitochondria at the onset of disease development. The sarcoplasmic reticulum (SR) constitutes the primary lipid biosynthesis site and regulates calcium handling in skeletal muscle to control excitation-contraction coupling. Tango2 deficient SR exhibits increased sensitivity to calcium release that was partly restored by inhibition of Ryr1-mediated Ca2+ release in skeletal muscle. Using lipidomics, we identified alterations in the glycerolipid state of tango2 mutants which is critical for membrane stability and energy balance. Therefore, these studies provide insight into key disease processes in Tango2 deficiency and have increased our understanding of the impacts of specific defects on predisposition to environmental triggers in TANGO2-related disorders. |
| Institute | University of North Carolina at Chapel Hill |
| Department | Chemistry |
| Laboratory | MS Core Laboratory |
| Last Name | Wallace |
| First Name | Emily |
| Address | 131 South Rd |
| emdiane@email.unc.edu | |
| Phone | 7042453664 |
| Submit Date | 2022-12-07 |
| Num Groups | 2 |
| Total Subjects | 5 |
| Num Males | N/A |
| Num Females | N/A |
| Study Comments | Zebrafish were all 4 weeks old when tissue was harvested, sex is determined at 4 weeks old. |
| Raw Data Available | Yes |
| Raw Data File Type(s) | mzXML |
| Analysis Type Detail | LC-MS |
| Release Date | 2022-12-30 |
| Release Version | 1 |
Select appropriate tab below to view additional metadata details:
Combined analysis:
| Analysis ID | AN003905 |
|---|---|
| Analysis type | MS |
| Chromatography type | Reversed phase |
| Chromatography system | Waters Acquity H-Class |
| Column | Waters ACQUITY UPLC BEH C18 (100 x 2.1mm,1.7um) |
| MS Type | ESI |
| MS instrument type | Orbitrap |
| MS instrument name | Thermo Q Exactive HF-X Orbitrap |
| Ion Mode | POSITIVE |
| Units | peak area |
MS:
| MS ID: | MS003644 |
| Analysis ID: | AN003905 |
| Instrument Name: | Thermo Q Exactive HF-X Orbitrap |
| Instrument Type: | Orbitrap |
| MS Type: | ESI |
| MS Comments: | Analysis was performed using a Thermo Q Exactive Plus coupled to a Waters Acquity H-Class LC. A 100 mm x 2.1 mm, 2.1 µm Waters BEH C18 column was used for separations. The following mobile phases were used: A- 60/40 ACN/H20 B- 90/10 IPA/ACN; both mobile phases contained 10 mM Ammonium Formate and 0.1% Formic Acid. A flow rate of 0.2 mL/minutes was used. Starting composition was 32% B, which increased to 40% B at 1 minute (held until 1.5 minutes) then 45% B at 4 minutes. This was increased to 50% B at 5 minutes, 60% B at 8 minutes, 70% B at 11 minutes, and 80% B at 14 minutes (held until 16 minutes). At 16 minutes the composition switched back to starting conditions (32% B) and was held for 4 minutes to re-equilibrate the column. Samples were analyzed in positive/negative switching ionization mode with top 5 data dependent fragmentation. Raw data were analyzed by LipidSearch 4.2. Lipids were identified by MS2 fragmentation (mass error of precursor=5 ppm, mass error of product=8 ppm). The identifications were generated individually for each sample and then aligned by grouping the samples (OxPAPC=C, HF=S1, Con=S2). Normalization was performed using EquiSplash from Avanti. Samples were normalized and biological replicates were averaged. P-value and fold change were calculated as instructed as previously described (Aguilan, Kulej, & Sidoli, 2020). P-value was set to 0.05. |
| Ion Mode: | POSITIVE |
| Capillary Temperature: | 300 |
| Capillary Voltage: | 3.50 KV |
| Collision Energy: | 25, 35, 45 V stepped collision energy |
| Fragmentation Method: | HCD |
| Ion Source Temperature: | 400 |
| Ion Spray Voltage: | 3.50 KV |
| Ionization: | HESI |
| Mass Accuracy: | 5 ppm |
| Reagent Gas: | Nitrogen |
| Source Temperature: | 400 |
| Spray Voltage: | 3.5 KV |
