DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Targeting prostate tumor low–molecular weight tyrosine phosphatase for oxidation-sensitizing therapy

Journal Article · · Science Advances
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1];  [1]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [1]; ORCiD logo [4]; ORCiD logo [5];  [6]; ORCiD logo [1]; ORCiD logo [2];  [1]; ORCiD logo [7]; ORCiD logo [8];  [5]; ORCiD logo [5]; ORCiD logo [9]; ORCiD logo [2];  [1] more »; ORCiD logo [10];  [1]; ORCiD logo [4]; ORCiD logo [2]; ORCiD logo [6]; ORCiD logo [3] « less
  1. Univ. of California, San Diego, CA (United States)
  2. Univ. of Texas, Austin, TX (United States)
  3. Univ. of California, San Diego, CA (United States); Cedars‐Sinai Medical Center, Los Angeles, CA (United States)
  4. Cedars‐Sinai Medical Center, Los Angeles, CA (United States)
  5. Univ. of Texas, Houston, TX (United States)
  6. Dartmouth College, Hanover, NH (United States). Geisel School of Medicine; Dartmouth College, Lebanon, NH (United States). Geisel School of Medicine
  7. Memorial Sloan Kettering Cancer Center, New York, NY (United States). Sloan Kettering Institute
  8. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
  9. Rice Univ., Houston, TX (United States)
  10. Caris Life Sciences, Phoenix, AZ (United States)

Protein tyrosine phosphatases (PTPs) play major roles in cancer and are emerging as therapeutic targets. Recent reports suggest low–molecular weight PTP (LMPTP)—encoded by the ACP1 gene—is overexpressed in prostate tumors. We found ACP1 up-regulated in human prostate tumors and ACP1 expression inversely correlated with overall survival. Using CRISPR-Cas9–generated LMPTP knockout C4-2B and MyC-CaP cells, we identified LMPTP as a critical promoter of prostate cancer (PCa) growth and bone metastasis. Through metabolomics, we found that LMPTP promotes PCa cell glutathione synthesis by dephosphorylating glutathione synthetase on inhibitory Tyr270. PCa cells lacking LMPTP showed reduced glutathione, enhanced activation of eukaryotic initiation factor 2–mediated stress response, and enhanced reactive oxygen species after exposure to taxane drugs. LMPTP inhibition slowed primary and bone metastatic prostate tumor growth in mice. These findings reveal a role for LMPTP as a critical promoter of PCa growth and metastasis and validate LMPTP inhibition as a therapeutic strategy for treating PCa through sensitization to oxidative stress.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF); USDOD; National Institutes of Health (NIH); American Cancer Society (ACS)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
2471047
Journal Information:
Science Advances, Journal Name: Science Advances Journal Issue: 5 Vol. 10; ISSN 2375-2548
Publisher:
AAASCopyright Statement
Country of Publication:
United States
Language:
English

References (65)

Causes of Death Among Patients With Metastatic Prostate Cancer in the US From 2000 to 2016 journal August 2021
The expression of low molecular weight protein tyrosine phosphatase is up-regulated in 1,2-dimethylhydrazine-induced colon tumours in rats journal November 2007
Amplification loop cascade for increasing caspase activity induced by docetaxel journal September 2005
UCSF Chimera?A visualization system for exploratory research and analysis journal January 2004
The low molecular weight protein tyrosine phosphatase promotes adipogenesis and subcutaneous adipocyte hypertrophy journal February 2021
Morin‐dependent inhibition of low molecular weight protein tyrosine phosphatase (LMW‐PTP) restores sensitivity to apoptosis during colon carcinogenesis: Studies in vitro and in vivo, in an Apc‐driven model of colon cancer journal January 2019
Deletion of low molecular weight protein tyrosine phosphatase (Acp1) protects against stress‐induced cardiomyopathy journal September 2015
Identification of the adipocyte acid phosphatase as a PAO‐sensitive tyrosyl phosphatase journal June 1992
DNA‐PKc inhibition overcomes taxane resistance by promoting taxane‐induced DNA damage in prostate cancer cells journal July 2021
Structure validation by Cα geometry: ϕ,ψ and Cβ deviation journal January 2003
Low molecular weight protein tyrosine phosphatases: small, but smart journal June 2002
Natural history of skeletal-related events in patients with breast, lung, or prostate cancer and metastases to bone: a 15-year study in two large US health systems journal July 2013
Current perspectives on bone metastases in castrate-resistant prostate cancer journal January 2018
A Deeper Look into Comet—Implementation and Features journal June 2015
Cloning of murine low molecular weight phosphotyrosine protein phosphatase cDNA: identification of a new isoform journal October 1998
Highly sensitive and selective determination of redox states of coenzymes Q9 and Q10 in mice tissues: Application of orbitrap mass spectrometry journal June 2018
A possible mechanism of low molecular weight protein tyrosine phosphatase (LMW-PTP) activity modulation by glutathione action during human osteoblast differentiation journal July 2009
Platelet-dependent signaling and Low Molecular Weight Protein Tyrosine Phosphatase expression promote aggressive phenotypic changes in gastrointestinal cancer cells journal January 2022
Glutathione synthesis journal May 2013
Low molecular weight protein tyrosine phosphatase (LMW-PTP) and its possible physiological functions of redox signaling in the eye lens journal May 2007
Low molecular weight protein tyrosine phosphatase: Multifaceted functions of an evolutionarily conserved enzyme journal October 2016
Engineered bone for probing organotypic growth and therapy response of prostate cancer tumoroids in vitro journal March 2019
Violacein switches off low molecular weight tyrosine phosphatase and rewires mitochondria in colorectal cancer cells journal October 2022
Protein Tyrosine Phosphatases in the Human Genome journal June 2004
Genetic Mutations in the S-loop of Human Glutathione Synthetase: Links Between Substrate Binding, Active Site Structure and Allostery journal January 2019
Low-Molecular-Weight Protein Tyrosine Phosphatase Predicts Prostate Cancer Outcome by Increasing the Metastatic Potential journal April 2016
Metabolomics-based phenotypic screens for evaluation of drug synergy via direct-infusion mass spectrometry journal May 2022
UALCAN: A Portal for Facilitating Tumor Subgroup Gene Expression and Survival Analyses journal August 2017
ROS and the DNA damage response in cancer journal July 2019
Low-molecular-weight protein tyrosine phosphatase expression as a prognostic factor for men with metastatic hormone-naïve prostate cancer journal October 2017
Discovery of Orally Bioavailable Purine-Based Inhibitors of the Low-Molecular-Weight Protein Tyrosine Phosphatase journal April 2021
Diabetes reversal by inhibition of the low-molecular-weight tyrosine phosphatase journal March 2017
NIH Image to ImageJ: 25 years of image analysis journal June 2012
From Krebs to clinic: glutamine metabolism to cancer therapy journal July 2016
Prostate cancer progression after androgen deprivation therapy: mechanisms of castrate resistance and novel therapeutic approaches journal June 2013
Systemic treatments for high-risk localized prostate cancer journal May 2018
FOXA1 mutations alter pioneering activity, differentiation and prostate cancer phenotypes journal June 2019
Visualizing and interpreting cancer genomics data via the Xena platform journal May 2020
Long-term clinical outcome in patients with glutathione synthetase deficiency journal July 2001
Computational modeling identifies multitargeted kinase inhibitors as effective therapies for metastatic, castration-resistant prostate cancer journal September 2021
Radioprotection by glutathione ester: transport of glutathione ester into human lymphoid cells and fibroblasts. journal August 1984
Reduction of Low Molecular Weight Protein-tyrosine Phosphatase Expression Improves Hyperglycemia and Insulin Sensitivity in Obese Mice journal May 2007
Molecular basis of glutathione synthetase deficiency and a rare gene permutation event journal June 1999
Missense mutations in the human glutathione synthetase gene result in severe metabolic acidosis, 5-oxoprolinuria, hemolytic anemia and neurological dysfunction journal July 1997
HMDB 5.0: the Human Metabolome Database for 2022 journal November 2021
Phaser crystallographic software journal July 2007
XDS journal January 2010
Features and development of Coot journal March 2010
Refinement of Macromolecular Structures by the Maximum-Likelihood Method journal May 1997
The extended human PTPome: a growing tyrosine phosphatase family journal December 2015
Druggable cancer phosphatases journal April 2021
Survival after bone metastasis by primary cancer type: a Danish population-based cohort study journal September 2017
Context-Dependent Hormone-Refractory Progression Revealed through Characterization of a Novel Murine Prostate Cancer Cell Line journal December 2005
Integrated Classification of Prostate Cancer Reveals a Novel Luminal Subtype with Poor Outcome journal August 2016
A survey of current software for network analysis in molecular biology journal January 2010
The integrated stress response journal August 2016
Reactive oxygen species induction by cabazitaxel through inhibiting Sestrin-3 in castration resistant prostate cancer journal September 2017
Low molecular weight protein tyrosine phosphatase (LMWPTP) upregulation mediates malignant potential in colorectal cancer journal March 2015
Low-molecular-weight Protein Tyrosine Phosphatase Is a Possible Biomarker for Predicting Postoperative Biochemical Recurrence in Prostate Cancer With Negative Surgical Margins journal February 2019
Enhancing 223Ra Treatment Efficacy by Anti-β1 Integrin Targeting journal October 2021
Cancer statistics, 2019 journal October 2018
Identification of Candidate Casein Kinase 2 Substrates in Mitosis by Quantitative Phosphoproteomics journal November 2017
Role of Glutathione in Cancer: From Mechanisms to Therapies journal October 2020
ATF4-Dependent NRF2 Transcriptional Regulation Promotes Antioxidant Protection during Endoplasmic Reticulum Stress journal March 2020
Development of a Fragment-Based Screening Assay for the Focal Adhesion Targeting Domain Using SPR and NMR journal September 2019