Seth Parker

PhD

Investigator, BC Children's Hospital

One of the main areas of research within my group involves identifying and characterizing specific transport proteins that are required by cells to fulfill their metabolic needs. Within this objective, we aim to understand what drives selective transporter expression in disease, how transporters function in specific physiological contexts, and how we can target the unique metabolic demands of cancer. We utilize biochemical and molecular biology techniques and develop quantitative mass spectrometry-based methods that include targeted and discovery metabolomics, stable-isotope tracing, and metabolic flux analysis to characterize the fate of key nutrients in diseased cells.

Academic Affiliations

  • Assistant Professor, , Department of Biochemistry and Molecular Biology, Faculty of Medicine, University of British Columbia
  • Research Theme: Healthy Starts
  • Research Group(s): Childhood Cancer and Blood Research; Origins of Child Health and Disease; Rare Diseases

Contact Information

Location

950 W 28th Ave, Vancouver, British Columbia, Canada, V6H 0B3

Protocol for measuring D-amino acid transport in mammalian cells using a fluorescent biosensor

STAR Protocols

Danisha Johal and Keeley G. Hewton and Sadie J. Gale and Amritpal S. Johal and Seth J. Parker

DOI: 10.1016/j.xpro.2025.103929

09 / 2025

Metabolomics analysis of SNAT2-deficient cells: Implications for the discovery of selective small-molecule inhibitors of an amino acid transporter

Journal of Biological Chemistry

Jessica C. Koe and Yuxi C. Zhong and Kiana Pashaoskooie and Gregory J. Kaczorowski and Maria L. Garcia and Seth J. Parker

DOI: 10.1016/j.jbc.2025.110525

09 / 2025

A Peptidisc-Based Survey of the Plasma Membrane Proteome of a Mammalian Cell

Molecular & Cellular Proteomics

Zhiyu Zhao and Arshdeep Khurana and Frank Antony and John W. Young and Keeley G. Hewton and Zora Brough and Tianshuang Zhong and Seth J. Parker and Franck Duong van Hoa

DOI: 10.1016/j.mcpro.2023.100588

08 / 2023

Acetate reprograms gut microbiota during alcohol consumption

Nature Communications

Cameron Martino and Livia S. Zaramela and Bei Gao and Mallory Embree and Janna Tarasova and Seth J. Parker and Yanhan Wang and Huikuan Chu and Peng Chen and Kuei-Chuan Lee and Daniela Domingos Galzerani and Jivani M. Gengatharan and Asama Lekbua and Maxwell Neal and Rob Knight and Hidekazu Tsukamoto and Christian M. Metallo and Bernd Schnabl and Karsten Zengler

DOI: 10.1038/s41467-022-31973-2

08 / 2022

Metabolic reprogramming of tumor-associated macrophages by collagen turnover promotes fibrosis in pancreatic cancer

Proceedings of the National Academy of Sciences

Madeleine M. LaRue and Seth Parker and Joseph Puccini and Michael Cammer and Alec C. Kimmelman and Dafna Bar-Sagi

DOI: 10.1073/pnas.2119168119

04 / 2022

Spontaneous hydrolysis and spurious metabolic properties of a-ketoglutarate esters

Nature Communications

Seth J. Parker and Joel Encarnacin-Rosado and Kate E. R. Hollinshead and David M. Hollinshead and Leonard J. Ash and Juan A. K. Rossi and Elaine Y. Lin and Albert S. W. Sohn and Mark R. Philips and Drew R. Jones and Alec C. Kimmelman

DOI: 10.1038/s41467-021-25228-9

08 / 2021

Proteomic screens for suppressors of anoikis identify IL1RAP as a promising surface target in Ewing sarcoma.

Cancer discovery

DOI: 10.1158/2159-8290.cd-20-1690 PubMed: 34021002

05 / 2021

Transporters at the Interface between Cytosolic and Mitochondrial Amino Acid Metabolism.

Metabolites

DOI: 10.3390/metabo11020112 PubMed: 33669382

02 / 2021

Autophagy is required for proper cysteine homeostasis in pancreatic cancer through regulation of SLC7A11

Proceedings of the National Academy of Sciences

Subhadip Mukhopadhyay and Douglas E. Biancur and Seth J. Parker and Keisuke Yamamoto and Robert S. Banh and Joao A. Paulo and Joseph D. Mancias and Alec C. Kimmelman

DOI: 10.1073/pnas.2021475118

02 / 2021

Respiratory Supercomplexes Promote Mitochondrial Efficiency and Growth in Severely Hypoxic Pancreatic Cancer.

Cell reports

DOI: 10.1016/j.celrep.2020.108231 PubMed: 33027658

10 / 2020

Disruption of redox homeostasis for combinatorial drug efficacy in K-Ras tumors as revealed by metabolic connectivity profiling.

Cancer & metabolism

DOI: 10.1186/s40170-020-00227-4 PubMed: 33005401

09 / 2020

Autophagy promotes immune evasion of pancreatic cancer by degrading MHC-I.

Nature

DOI: 10.1038/s41586-020-2229-5 PubMed: 32376951

04 / 2020

Selective Alanine Transporter Utilization Creates a Targetable Metabolic Niche in Pancreatic Cancer.

Cancer discovery

DOI: 10.1158/2159-8290.cd-19-0959 PubMed: 32341021

04 / 2020

Deuterium Tracing to Interrogate Compartment-Specific NAD(P)H Metabolism in Cultured Mammalian Cells.

Methods in molecular biology (Clifton, N.J.)

DOI: 10.1007/978-1-0716-0159-4_4 PubMed: 31893370

01 / 2020

KRAS4A directly regulates hexokinase 1.

Nature

DOI: 10.1038/s41586-019-1832-9 PubMed: 31827279

12 / 2019

Glutamine metabolism via glutaminase 1 in autosomal-dominant polycystic kidney disease.

Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association

DOI: 10.1093/ndt/gfx349 PubMed: 29420817

08 / 2018

Posttranscriptional Upregulation of IDH1 by HuR Establishes a Powerful Survival Phenotype in Pancreatic Cancer Cells.

Cancer research

DOI: 10.1158/0008-5472.can-17-0015 PubMed: 28652247

06 / 2017

LKB1 promotes metabolic flexibility in response to energy stress.

Metabolic engineering

DOI: 10.1016/j.ymben.2016.12.010 PubMed: 28034771

12 / 2016

Inhibition of acetyl-CoA carboxylase suppresses fatty acid synthesis and tumor growth of non-small-cell lung cancer in preclinical models.

Nature medicine

DOI: 10.1038/nm.4181 PubMed: 27643638

09 / 2016

Distinct Metabolic States Can Support Self-Renewal and Lipogenesis in Human Pluripotent Stem Cells under Different Culture Conditions.

Cell reports

DOI: 10.1016/j.celrep.2016.06.102 PubMed: 27477285

07 / 2016

Reductive carboxylation supports redox homeostasis during anchorage-independent growth.

Nature

DOI: 10.1038/nature17393 PubMed: 27049945

04 / 2016

Chasing One-Carbon Units to Understand the Role of Serine in Epigenetics.

Molecular cell

DOI: 10.1016/j.molcel.2016.01.006 PubMed: 26799763

01 / 2016

Loss of succinate dehydrogenase activity results in dependency on pyruvate carboxylation for cellular anabolism.

Nature communications

DOI: 10.1038/ncomms9784 PubMed: 26522426

11 / 2015

Metabolic consequences of oncogenic IDH mutations.

Pharmacology & therapeutics

DOI: 10.1016/j.pharmthera.2015.05.003 PubMed: 25956465

05 / 2015

Regulation of substrate utilization by the mitochondrial pyruvate carrier.

Molecular cell

DOI: 10.1016/j.molcel.2014.09.024 PubMed: 25458843

10 / 2014

Tracing compartmentalized NADPH metabolism in the cytosol and mitochondria of mammalian cells.

Molecular cell

DOI: 10.1016/j.molcel.2014.05.008 PubMed: 24882210

05 / 2014

IDH1 mutations alter citric acid cycle metabolism and increase dependence on oxidative mitochondrial metabolism.

Cancer research

DOI: 10.1158/0008-5472.can-14-0772-t PubMed: 24755473

04 / 2014

Macropinocytosis of protein is an amino acid supply route in Ras-transformed cells.

Nature

DOI: 10.1038/nature12138 PubMed: 23665962

05 / 2013

Largazole and its derivatives selectively inhibit ubiquitin activating enzyme (e1).

PloS one

DOI: 10.1371/journal.pone.0029208 PubMed: 22279528

01 / 2012

Identification and mechanistic studies of a novel ubiquitin E1 inhibitor.

Journal of biomolecular screening

DOI: 10.1177/1087057111433843 PubMed: 22274912

01 / 2012

Better tools to study amino acid metabolism and transport in intact cells

There are ~450 solute carrier (SLC) transporters that participate in the import and efflux of ions, amino acids, sugars, and cofactors required for metabolism. However, over 30% of
these SLCs are uncharacterized or poorly understood. Our research group is currently developing better molecular biology, imaging, and metabolomics tools that aim to advance our understanding of the function, localization, and cooperativity of amino acid transporters through uncoupling of transport from intracellular metabolism.

Understand the metabolic advantage of selective, compartment-specific enzyme expression

The metabolic pathways that comprise eukaryotic metabolism are compartmentalized into distinct and specialized organelles (e.g. mitochondria, lysosomes, peroxisomes). Current metabolomics methods that extract bulk cellular metabolites fail to capture the compartmentalization of
intracellular metabolism. Our group aims to develop better methods to interrogate compartmentalized metabolic pathways. In this vein, we hope to understand how expression of specific enzyme isoforms may offer a selective advantage for cancer cells.

Honours & Awards

American Cancer Society Postdoctoral Fellowship (2019-2020)

Siebel Scholar (2016)

Achievement Reward for College Scientists (2016)

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