extend your metabolomics insight! - agilent...april 29, 2016 masshunter vistaflux 2 accelerate your...
TRANSCRIPT
Extend Your Metabolomics Insight! Introducing MassHunter VistaFlux
April 2016
Agilent – THE Leader in Metabolomics!
Fiehn EI Library
METLIN MS/MS Library
Mass Profiler Professional with Pathway Architect
Profinder Vista Flux
Agilent Innovations for
Metabolomics
For Research Use Only. Not for use in diagnostic procedures. April 29, 2016
MassHunter VistaFlux
2
Accelerate Your Research With VistaFlux! Agilent’s Qualitative Flux Analysis Workflow
Extend your
metabolomics insight …
Track the flow of metabolites
through a pathway!
Succinate
Citrate
Isocitrate
α-Ketoglutarate
Succinyl CoA Fumarate
Malate
Oxaloacetate
VistaFlux
For Research Use Only. Not for use in diagnostic procedures. April 29, 2016
MassHunter VistaFlux
3
The Importance of Qualitative Flux Analysis Extend Your Metabolomics Insight
“Flux analysis elevates
metabolic studies to a different
level. While metabolomics
reports on the molecular
composition of a cell, flux
analysis reveals in vivo pathway
activity.”
- Nicola Zamboni, PhD, Institute for
Molecular Systems Biology, ETH Zurich
? ?
For Research Use Only. Not for use in diagnostic procedures. April 29, 2016
MassHunter VistaFlux
4
VistaFlux Stable Isotope Tracing Isotopologue Tracking
Use of stable isotope labels (13C, 15N, and 2H)
Monitor stable isotope incorporation
Fumarate C4H4O4
Isotopologues
M+0: 13C0C4H4O4
M+1: 13C1C3H4O4
M+2: 13C2C2H4O4
M+3: 13C3C1H4O4
M+4: 13C4C0H4O4
C HO
C
C
C
OH
O
O
C HO
C
C
C
OH
O
O
C HO
C
C
C
OH
O
O
C HO
C
C
C
OH
O
O
Isotopomers of M+1
0 hr
8 hr
For Research Use Only. Not for use in diagnostic procedures. April 29, 2016
MassHunter VistaFlux
5
Manual Qualitative Flux Analysis – a Tedious Process! Current Flux Data Analysis Workflow
Create target metabolite list
Determine m/z for all possible isotopologues
Extract chromatogram
for all isotopologues for all targets
Integrate peaks and transfer
abundance to spreadsheet
Review results
Manually visualize on
pathways using Cytoscape,
Adobe Illustrator etc.
For Research Use Only. Not for use in diagnostic procedures. April 29, 2016
MassHunter VistaFlux
6
Accelerate Your Research With VistaFlux! Agilent’s Qualitative Flux Analysis Workflow
• Pathways to PCDL
• PCDL Manager
Create Target Metabolite List
• MassHunter Acquisition
• LC/TOF or LC/Q-TOF
Acquire Data
• Profinder
Extract Features
• Omix Premium
Visualize on Pathways
VistaFlux Workflow
For Research Use Only. Not for use in diagnostic procedures. April 29, 2016
MassHunter VistaFlux
7
Target List Creation in VistaFlux
Target List
Creation
Specify Interesting Pathways
Generate Metabolite
List
Determine Tracer
For Research Use Only. Not for use in diagnostic procedures. April 29, 2016
MassHunter VistaFlux
8
Acquire Data on Agilent LC/TOF or LC/Q-TOF
Acquire Data
Use Accurate Mass
TOF/Q-TOF
Separate Isobaric
Metabolites with RT
What measurement factors
are important in flux
analysis?
6545 LC/Q-TOF
(best metabolite
performance)
6230 LC/TOF
(best value)
Mass Accuracy and High Resolution
Confidently track isotopologues of metabolites in
complex samples Isotopic Fidelity
Detect incorporation of isotopic label through
metabolic pathways Dynamic Range
Detect low levels of stable isotope incorporation
in the presence of other intense isotopologues For Research Use Only. Not for use in diagnostic procedures. April 29, 2016
MassHunter VistaFlux
9
Data Analysis in VistaFlux Profinder Batch Isotopologue Extraction
Extract Features
Targeted Data Mining for
Metabolites
Score by Isotopologues and Retention
Time
For Research Use Only. Not for use in diagnostic procedures. April 29, 2016
MassHunter VistaFlux
10
Data Analysis in VistaFlux Sophisticated Multi-stage Isotopologue Extraction Algorithm
For each target metabolite:
• Extracts chromatogram for each possible isotopologue using specified RT range and wider m/z tolerance
• Integrates sum of EICs and evaluates to narrow RT range
• Extracts MS and disqualifies ions not meeting criteria (m/z match and elution profiles)
• Creates new, combined EIC from sum of qualified ions
• Scores remaining peaks based on number of qualified isotopologue ions, relative abundance, and distance from target RT
• Determines raw isotopologue abundance
• Calculates corrected isotopologue abundance using natural isotope abundance and purity of the isotope tracer
Benefits:
• Minimizes false positive results
• Provides more accurate isotopologue abundances, which yields more precise results
For Research Use Only. Not for use in diagnostic procedures. April 29, 2016
MassHunter VistaFlux
11
Isotopologue Extraction Example First Stage Extraction – Wider m/z and RT Windows
1
2
(3)
4
M-1
M+0
M+1
M+2
M+3
M+4
M+0
M+1
M+4
M+5
M+6
M+7
For Research Use Only. Not for use in diagnostic procedures. April 29, 2016
MassHunter VistaFlux
12
Challenging Isotopologue Extraction Example Second Pass Extraction – Narrower m/z and RT Windows
1
4
3
(2)
Sum
M+0
M+1
M+4
M+5
M+6
Qualified Ions After 2nd Pass
M+0
M+1
M+0
M+1
M+4
M+5
M+6
M+6 • Peak 2 has no qualified ions
after narrow window extraction
• M+6 fails elution profile test so
peak 4 is eliminated
• Peak 3 wins – closest to
expected RT and has the most
isotopologue peaks
For Research Use Only. Not for use in diagnostic procedures. April 29, 2016
MassHunter VistaFlux
13
Visualize Profinder Results on Pathways Omix Premium Visualization
Visualize on Pathways
Display Isotopologue
Metabolite Data
Static Pictures
Play Video of Time
points/networks
For Research Use Only. Not for use in diagnostic procedures. April 29, 2016
MassHunter VistaFlux
14
Qualitative Flux Analysis Experiment: Cancer Cell Line with Enzyme Mutation (IDH2) Goal: Understand impact of
mutation on glutamate
metabolism
Tracer experiment with
U-13C-Glutamine (Gln)
Monitoring metabolites
labeled in green
Courtesy of Justin Cross, Donald B. and Catherine C. Marron Cancer Metabolism Center, Memorial Sloan Kettering Cancer Center
For Research Use Only. Not for use in diagnostic procedures. April 29, 2016
MassHunter VistaFlux
15
Qualitative Flux Analysis Experiment Targeted Isotopologue Extraction Results
For Research Use Only. Not for use in diagnostic procedures.
Courtesy of Justin Cross, Donald B. and Catherine C. Marron Cancer Metabolism Center, Memorial Sloan Kettering Cancer Center
MS Spectra Isotopologue Results by Time Point
April 29, 2016
MassHunter VistaFlux
16
Qualitative Flux Analysis Experiment Quick Summary of Isotopologue Results on Network
For Research Use Only. Not for use in diagnostic procedures.
Courtesy of Justin Cross, Donald B. and Catherine C. Marron Cancer Metabolism Center, Memorial Sloan Kettering Cancer Center
• Optional node coloring gives quick summary on network
• For this experiment, confirms that 2-HG is produced by the
mutant IDH2 enzyme from glutamine via α-KG via the TCA
cycle
Abundance Stable Isotope
Incorporation
Both Abundance and
Incorporation
April 29, 2016
MassHunter VistaFlux
17
Qualitative Flux Analysis Experiment Optional Detailed Views of Isotopologue Results on Network
• Quilt plot displays all time points and isotopologue results
• Fractional labeling shows weighted 13C incorporation
For this experiment:
• Significant label incorporation into M+5 isotopologue of 2-HG
• Incorporation occurs after 3 and 8-hours of incubation with U-13C-Gln
• Demonstrates glutamine is the major substrate used to produce 2-HG in IDH2-mutant CS-1 cells.
For Research Use Only. Not for use in diagnostic procedures.
Courtesy of Justin Cross, Donald B. and Catherine C. Marron Cancer Metabolism Center, Memorial Sloan Kettering Cancer Center
April 29, 2016
MassHunter VistaFlux
18
Qualitative Flux Analysis Experiment Optional Detailed Views of Isotopologue Results on Network
• Isotopologue results with error bars for standard deviation
• Shows cellular glutathione pool becomes labeled with first one and then two Gln-derived 5 carbon building blocks.
• Node fill indicates this is a highly abundant metabolite, thus it takes time to impact the total cellular pool
For Research Use Only. Not for use in diagnostic procedures.
Courtesy of Justin Cross, Donald B. and Catherine C. Marron Cancer Metabolism Center, Memorial Sloan Kettering Cancer Center
April 29, 2016
MassHunter VistaFlux
19
Qualitative Flux Analysis Experiment Comprehensive View of Isotopologue Results on Network
For Research Use Only. Not for use in diagnostic procedures.
Courtesy of Justin Cross, Donald B. and Catherine C. Marron Cancer Metabolism Center, Memorial Sloan Kettering Cancer Center
April 29, 2016
MassHunter VistaFlux
20
Agilent Solutions for Metabolomics
– A broad family of products (LC/MS, GC/MS and CE/MS) to meet your needs
– Agilent TOF technology is most-suited for discovery metabolomics
• High mass accuracy and mass stability
• Wide dynamic range with good resolution and high isotope ratio fidelity
• Highest sensitivity for low level metabolite detection
– Profinder is the most advanced software for high quality feature finding
– METLIN is the largest commercially available MS/MS library for metabolites
– MSC enables identification of MS/MS spectra without library matches
– Software designed to analyze metabolomics data
– Pathway compound ID mapping using automated Agilent BridgeDB
– Ability to visualize metabolomics data in pathways
For Research Use Only. Not for use in diagnostic procedures. April 29, 2016
MassHunter VistaFlux
21
Agilent Instrumentation For Metabolomics
QQQ
6400 Series
Q-TOF
6500 series
TOF
6200 series
1290
Infinity II
UHPLC
Hi-DEF Q-TOF
6500 series
7200B
GC/Q-TOF
7000C
GC/QQQ
5977A
GC/MS
7100 CE 1260 SFC
For Research Use Only. Not for use in diagnostic procedures. April 29, 2016
MassHunter VistaFlux
22
Most Extensive Software Portfolio for Metabolomics Data Analysis
Find features across many complex data files
Align extraction results from many files
Analyze extracted data for statistically different features
Annotate and identify interesting features
Search and map annotated metabolites to find interesting pathways
Visualize results on pathways
For Research Use Only. Not for use in diagnostic procedures. April 29, 2016
MassHunter VistaFlux
23
Summary
• The new Agilent VistaFlux workflow extends metabolomics
capability by adding qualitative flux analysis
• Researchers will get fast, reliable results that can easily be
shared with others through pathway diagrams and videos
• VistaFlux is the latest addition to Agilent’s comprehensive
metabolomics portfolio of hardware, software, consumables,
and support
“Profinder allows users fast data mining and isotopologue
identification. The ability to frame and visualize flux data in Omix
Premium facilitates interpretation across multidisciplinary teams.”
- Dr. Pietro Morlacchi, Research Scientist, MD Anderson Cancer Center
For Research Use Only. Not for use in diagnostic procedures. April 29, 2016
MassHunter VistaFlux
24
For Research Use Only. Not for use in diagnostic procedures. April 29, 2016
MassHunter VistaFlux
25