- High specificity and reproducibility with LC-MS/MS or GC-MS.
- Focused on lipid classes or pathways.
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Lipids are essential metabolites that have many crucial cellular functions and can provide a direct readout of cellular metabolic status. The total lipid content in a cell is called a lipidome. Lipidomics is the study of lipidomes using the principles and techniques of analytical chemistry, and emerged in 2003 as an approach to study the metabolism of the cellular lipidome. The analytical power of, and new developments in, mass spectrometry (MS) have accelerated this emerging discipline.
Lipidomics enables us to study cellular metabolism by quantifying the changes of individual lipid classes, subclasses and molecular species that reflect metabolic differences. As the pathways and networks of lipid metabolism have been extensively studied, any changes in lipid amounts can simultaneously reveal variations in several enzymatic levels, activities and/or gene expression patterns.
Creative Proteomics has extensive experience in the field of lipidomics. We are dedicated to providing cutting-edge mass spectrometry (MS)-based lipidomics services for biomedical research institutions, biotechnology and pharmaceutical companies.
Lipidomics services offer a comprehensive suite of solutions designed to analyze, quantify, and interpret lipid compositions in biological samples. These services help researchers explore lipid metabolic pathways, identify biomarkers, and understand the roles of lipids in various biological processes.
Lipidomics Bioinformation Analysis
Targeted Lipidomics is designed to identify and quantify specific groups of lipids, focusing on known lipid classes and metabolic pathways. This method is highly precise, making it an ideal choice for validating biological hypotheses, studying defined metabolic networks, and identifying potential biomarkers.
Untargeted lipidomics focuses on discovering new lipid species and analyzing the lipidome in a comprehensive, unbiased manner. This approach is ideal for identifying known and novel lipids and understanding complex lipid profiles within biological systems. By capturing a wide range of lipids, it supports comparative studies across different experimental conditions, such as disease models, therapeutic interventions, and cellular responses.
Detection of Known and Unknown Lipids
This approach aims to identify both known lipids and unknown lipid species within a sample. It allows for the discovery of lipid species that may not have been previously recognized, enhancing the understanding of lipid biology in health and disease.
Comparative Lipid Profiling
Untargeted lipidomics enables researchers to compare lipid profiles across different experimental groups or conditions, helping to identify lipid-based biomarkers for diseases or therapeutic responses.
Biomarker Discovery
By identifying lipid changes linked to specific biological processes, researchers can discover potential biomarkers for disease diagnosis, prognosis, or treatment efficacy.
MALDI-Imaging Lipidomics (Matrix-Assisted Laser Desorption/Ionization Imaging Mass Spectrometry) enables spatially resolved lipid profiling within tissue sections. By visualizing lipid distributions in situ, this technique allows for the study of lipid heterogeneity at the cellular and tissue levels. It is a powerful tool for understanding the spatial relationship of lipids in disease, development, and response to treatments.
Tissue-Specific Lipid Profiling:
High Sensitivity and Resolution:
Metabolic Flux Analysis (MFA) in lipidomics tracks the metabolic pathways of lipids by measuring the flow of metabolites through different biochemical pathways. This helps to elucidate how lipids are synthesized, modified, and degraded in various cellular processes. MFA can be applied in both targeted and untargeted modes, offering insights into lipid metabolism under normal and altered conditions, such as disease, stress, or treatment exposure.
Lipids Metabolism Analysis:
Regulation of Lipid Metabolism:
Lipidomics bioinformatic analysis integrates complex lipidomics data into meaningful biological insights. This service involves the use of advanced software tools to process, analyze, and interpret lipidomic data. By utilizing state-of-the-art bioinformatic methods, researchers can extract statistically significant patterns, perform comparative analysis, and visualize lipid data in intuitive ways.
Data Analysis and Reporting:
Visualization and Interpretation:
Comparative Lipidomics Analysis:
Lipidomics requires a variety of high-performance instruments for the detailed analysis of lipids, each tailored to specific aspects of lipid characterization, quantification, and profiling.
Triple Quadrupole MS (QqQ): Instruments like the SCIEX Triple Quad 6500+ and SCIEX 7500 systems are widely used for targeted lipidomics. They offer high sensitivity and selectivity through multiple reaction monitoring (MRM), making them ideal for accurate lipid quantification.
Time-of-Flight MS (TOF): The ZenoTOF 7600 system is a high-resolution mass spectrometer that uses Electron Activated Dissociation (EAD) technology. This system is particularly useful for untargeted lipidomics, offering comprehensive lipid profiling and the ability to elucidate lipid structures in a single experiment.
Orbitrap MS: Orbitrap mass spectrometers, like the Thermo Fisher Q Exactive, provide high-resolution and accurate mass capabilities. These systems are ideal for detailed lipidomic studies, offering precision in both targeted and untargeted lipid analysis.
SCIEX Triple Quad 6500+ (Figure from SCIEX)
ZenoTOF 7600 system (Figure from SCIEX)
Thermo Fisher Q Exactive (Figure from Thermo Fisher)
The SelexION device enhances the performance of mass spectrometers by allowing the separation of lipid isomers and isobars in the gas phase. It improves selectivity and accuracy, especially when integrated with HPLC or UHPLC systems, which can further separate lipids before MS analysis.
High-Performance Liquid Chromatography (HPLC) and Ultra-High-Performance Liquid Chromatography (UHPLC) are frequently used in lipidomics alongside mass spectrometry. These chromatography techniques separate lipids based on their size, polarity, or chemical properties, providing improved resolution and cleaner data for complex lipid mixtures.
GC-Flame Ionization Detection (GC-FID) is useful for analyzing volatile or derivatized lipid species, such as fatty acids. While GC-FID offers high sensitivity, it is more commonly used for profiling fatty acid composition than for broad lipidomic analysis, as non-volatile lipids often require derivatization for effective analysis.
GC-MS: Gas chromatography coupled with mass spectrometry (GC-MS) is a powerful tool for identifying and quantifying lipid species, particularly fatty acids and their derivatives. This combination offers both detailed structural information and high sensitivity for lipid analysis.
Workflow of Lipidome Data Analysis
This report provides a foundational overview of the lipidomics data, summarizing key metrics to ensure the quality of data for further exploration.
Key Features:
The goal of this report is to offer a high-level snapshot of lipidomic profiles and verify the reliability of the analysis process, setting the stage for deeper investigations.
Designed for more advanced analysis, this report dives deeper into lipidomics data, helping researchers identify patterns and trends within their datasets.
Key Features:
This report helps to better understand lipid dynamics and supports the formulation of new hypotheses for further research.
This specialized report offers in-depth statistical analyses and customized data interpretation to address specific research questions.
Key Features:
Designed to provide high-value insights, this report is tailored to meet the specific experimental needs of researchers.
Explore our Lipidomics Solutions brochure to learn more about our comprehensive lipidomics analysis platform.
In the pharmaceutical and biotechnology fields, lipidomics is used to identify lipid-based biomarkers, study the effects of drugs, and understand the underlying mechanisms of diseases. By analyzing how lipids change in response to treatments, researchers can improve drug development and discover new therapeutic targets.
Lipidomics is vital in food science, helping to analyze the lipid content of different foods and their effects on health. It provides valuable insights into how dietary fats impact metabolic processes, inflammation, and the risk of chronic diseases like obesity and heart disease.
Lipidomics is increasingly used in disease research to explore how lipids contribute to conditions like cancer, cardiovascular diseases, neurodegeneration, and metabolic disorders. By examining lipid profiles in blood, tissues, and cells, researchers can identify new biomarkers and potential treatments.
In environmental toxicology, lipidomics helps assess how environmental pollutants affect lipid metabolism in animals, plants, and humans. It provides insights into how exposure to chemicals like pesticides or industrial toxins can alter lipid profiles, helping to identify potential health risks and environmental hazards.
Lipidomics can be applied to agriculture to study how plants and animals use lipids for growth, energy storage, and stress response. It helps improve crop quality, enhance resistance to diseases, and optimize animal health, supporting better agricultural practices and food production.
In microbiology, lipidomics is used to analyze the lipid profiles of bacteria, fungi, and other microorganisms. This research helps understand how microorganisms adapt to different environments, resist stress, or cause infections, and can lead to new ways of combating antibiotic resistance or improving industrial fermentation processes.
Sample Type | Recommended Sample Amount | Minimum Sample Amount |
---|---|---|
Serum/Plasma | ≥ 300 µL | ≥ 100 µL |
Urine | ≥ 300 µL | ≥ 100 µL |
Animal Tissue | ≥ 100 mg | ≥ 25 mg |
Plant Tissue | ≥ 1 g | ≥ 100 mg |
Feces/Intestinal Contents | ≥ 200 mg | ≥ 25 mg |
Cells | ≥ 1 × 10⁷ | ≥ 5 × 10⁶ |
Microorganisms | ≥ 200 mg | ≥ 25 mg |
Culture Medium/Fermentation Medium | ≥ 1 mL | ≥ 100 µL |
Milk | ≥ 1 mL | ≥ 100 µL |
Other Body Fluids (Amniotic Fluid, Saliva, Hemolymph, Cerebrospinal Fluid, etc.) | ≥ 300 µL | ≥ 100 µL |
Swab | 2 samples | 2 samples |
Soil Sample | ≥ 1 g | ≥ 1 g |
How do I choose between different lipid extraction methods for my samples?
The choice of lipid extraction method largely depends on the sample type and the goal of your lipidomics study.
What is the best way to preserve samples before lipid extraction?
Lipid degradation can occur quickly after sample collection, especially with biological samples. To preserve the integrity of lipids before extraction:
What are the common pitfalls during lipid extraction, and how can I avoid them?
Lipid extraction is a delicate process, and errors at this stage can affect the quality of the results. Common pitfalls include:
How can I ensure consistent sampling across experimental groups?
Consistency in sampling is crucial for minimizing variability and obtaining reliable results.
If your study involves multiple sampling time points or experimental groups, it's important to develop a clear sampling protocol to ensure consistency across all conditions.
Can you help me with the proper storage and handling of tissue samples for lipidomics analysis?
Yes, proper storage and handling of tissue samples are critical to maintaining lipid integrity.
We can provide customized protocols for handling various tissue types and offer advice on optimizing storage conditions for different lipid classes.
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