Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Coupling Microdroplet-Based Sample Preparation, Multiplexed Isobaric Labeling, and Nanoflow Peptide Fractionation for Deep Proteome Profiling of the Tissue Microenvironment

Journal Article · · Analytical Chemistry

There is increasing interest in developing in-depth proteomic approaches for mapping tissue heterogeneity in a cell-type-specific manner to better understand and predict the function of complex biological systems, such as human organs. Existing spatially-resolved proteomics technologies cannot provide deep proteome coverage due to limited sensitivity and poor sample recovery. Herein, we seamlessly combined laser capture microdissection with a low-volume sample processing technology that includes a microfluidic device named microPOTS (Microdroplet Processing in One pot for Trace Samples), multiplexed isobaric labelling, and a nanoflow peptide fractionation approach. The integrated workflow allowed us to maximize proteome coverage of laser-isolated tissue samples containing nanogram level of proteins. We demonstrated that the deep spatial proteomics platform can quantify more than 5,000 unique proteins from a small-sized human pancreatic tissue pixel (~60,000 µm2) and differentiate unique protein abundance patterns in pancreas. Further, the use of microPOTS chip eliminated the requirement for advanced microfabrication capabilities and specialized nanoliter liquid handling equipment, making it more accessible to proteomic laboratories.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States). Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER); National Institutes of Health (NIH)
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
2482231
Alternate ID(s):
OSTI ID: 2471609
Report Number(s):
PNNL-SA--194410
Journal Information:
Analytical Chemistry, Journal Name: Analytical Chemistry Journal Issue: 32 Vol. 96; ISSN 0003-2700
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

References (53)

Single-Cell Mass Spectrometry for Discovery Proteomics: Quantifying Translational Cell Heterogeneity in the 16-Cell Frog ( Xenopus ) Embryo journal January 2016
In Vivo Subcellular Mass Spectrometry Enables Proteo‐Metabolomic Single‐Cell Systems Biology in a Chordate Embryo Developing to a Normally Behaving Tadpole (X. laevis)** journal April 2021
Minimising iTRAQ ratio compression through understanding LC-MS elution dependence and high-resolution HILIC fractionation journal May 2011
Deep Profiling of Cellular Heterogeneity by Emerging Single‐Cell Proteomic Technologies journal December 2019
Benchtop-compatible sample processing workflow for proteome profiling of < 100 mammalian cells journal November 2018
Human Pancreatic Acinar Cells journal December 2017
Single-cell protein analysis by mass spectrometry journal February 2021
Separation methods in single-cell proteomics: RPLC or CE? journal November 2022
Label-free absolute protein quantification with data-independent acquisition journal May 2019
Proteomic Profiling of Intra-Islet Features Reveals Substructure-Specific Protein Signatures journal December 2022
Proteome Mapping of the Human Pancreatic Islet Microenvironment Reveals Endocrine–Exocrine Signaling Sphere of Influence journal August 2023
An Automated Nanowell-Array Workflow for Quantitative Multiplexed Single-Cell Proteomics Sample Preparation at High Sensitivity journal December 2023
Metabolic memory of ß-cells controls insulin secretion and is mediated by CaMKIIa journal July 2014
clusterProfiler 4.0: A universal enrichment tool for interpreting omics data journal August 2021
Automated Coupling of Nanodroplet Sample Preparation with Liquid Chromatography–Mass Spectrometry for High-Throughput Single-Cell Proteomics journal July 2020
Quantitative Accuracy and Precision in Multiplexed Single-Cell Proteomics journal December 2021
Robust and Easy-to-Use One-Pot Workflow for Label-Free Single-Cell Proteomics journal February 2023
Single Cell Proteomics Using Frog ( Xenopus laevis ) Blastomeres Isolated from Early Stage Embryos, Which Form a Geometric Progression in Protein Content journal June 2016
Nanoliter-Scale Oil-Air-Droplet Chip-Based Single Cell Proteomic Analysis journal March 2018
Boosting to Amplify Signal with Isobaric Labeling (BASIL) Strategy for Comprehensive Quantitative Phosphoproteomic Characterization of Small Populations of Cells journal March 2019
Single Cell Proteomics by Data-Independent Acquisition To Study Embryonic Asymmetry in Xenopus laevis journal June 2019
Microsampling Capillary Electrophoresis Mass Spectrometry Enables Single-Cell Proteomics in Complex Tissues: Developing Cell Clones in Live Xenopus laevis and Zebrafish Embryos journal February 2019
Automated Nanoflow Two-Dimensional Reversed-Phase Liquid Chromatography System Enables In-Depth Proteome and Phosphoproteome Profiling of Nanoscale Samples journal June 2019
High-Throughput Single Cell Proteomics Enabled by Multiplex Isobaric Labeling in a Nanodroplet Sample Preparation Platform journal September 2019
MicroPOTS Analysis of Barrett’s Esophageal Cell Line Models Identifies Proteomic Changes after Physiologic and Radiation Stress journal January 2021
Assessment of TMT Labeling Efficiency in Large-Scale Quantitative Proteomics: The Critical Effect of Sample pH journal May 2021
Spectral Probabilities and Generating Functions of Tandem Mass Spectra: A Strike against Decoy Databases journal August 2008
Gene Ontology: tool for the unification of biology journal May 2000
MS-GF+ makes progress towards a universal database search tool for proteomics journal October 2014
Nanodroplet processing platform for deep and quantitative proteome profiling of 10–100 mammalian cells journal February 2018
Automated mass spectrometry imaging of over 2000 proteins from tissue sections at 100-μm spatial resolution journal January 2020
Quantitative single-cell proteomics as a tool to characterize cellular hierarchies journal June 2021
High-throughput and high-efficiency sample preparation for single-cell proteomics using a nested nanowell chip journal October 2021
Defining the carrier proteome limit for single-cell proteomics journal December 2020
Transcriptional profiles of human islet and exocrine endothelial cells in subjects with or without impaired glucose metabolism journal December 2020
Nanowell-mediated two-dimensional liquid chromatography enables deep proteome profiling of <1000 mammalian cells journal January 2018
Spatial proteomics for understanding the tissue microenvironment journal January 2021
Label-free Quantification of Proteins in Single Embryonic Cells with Neural Fate in the Cleavage-Stage Frog ( Xenopus laevis ) Embryo using Capillary Electrophoresis Electrospray Ionization High-Resolution Mass Spectrometry (CE-ESI-HRMS) journal June 2016
An Improved Boosting to Amplify Signal with Isobaric Labeling (iBASIL) Strategy for Precise Quantitative Single-cell Proteomics journal May 2020
Spatially Resolved Proteome Mapping of Laser Capture Microdissected Tissue with Automated Sample Transfer to Nanodroplets journal June 2018
Opposing roles for SNAP23 in secretion in exocrine and endocrine pancreatic cells journal October 2016
Correcting systematic bias and instrument measurement drift with mzRefinery: Fig. 1. journal August 2015
The Gene Ontology resource: enriching a GOld mine journal December 2020
limma powers differential expression analyses for RNA-sequencing and microarray studies journal January 2015
Tissue-based map of the human proteome journal January 2015
Islet Amyloid Polypeptide, Islet Amyloid, and Diabetes Mellitus journal July 2011
Proteomic and phosphoproteomic measurements enhance ability to predict ex vivo drug response in AML journal July 2022
SCoPE-MS: mass spectrometry of single mammalian cells quantifies proteome heterogeneity during cell differentiation journal October 2018
Exploring functional protein covariation across single cells using nPOP journal December 2022
The Human Pancreas Proteome Defined by Transcriptomics and Antibody-Based Profiling journal December 2014
Unraveling pancreatic islet biology by quantitative proteomics journal August 2011
Challenges and Solutions in Proteomics journal March 2007
Near-Single-Cell Proteomics Profiling of the Proximal Tubular and Glomerulus of the Normal Human Kidney journal September 2020

Figures / Tables (4)