Cited by 153Cancer Research and TreatmentsAmino Acid Enzymes and MetabolismPancreatic and Hepatic Oncology Research

Pancreatic cancer cell lines deficient in argininosuccinate synthetase are sensitive to arginine deprivation by arginine deiminase

Open access
Bowles, Tawnya L., Kim, Randie, Galante, Joseph, Parsons, Colin M., Virudachalam, Subbulakshmi, Kung, Hsing‐Jien, Bold, Richard J.·2008·International Journal of Cancer

Abstract

Eukaryotic cells can synthesize the non-essential amino acid arginine from aspartate and citrulline using the enzyme argininosuccinate synthetase (ASS). It has been observed that ASS is underexpressed in various types of cancers ASS, for which arginine become auxotrophic. Arginine deiminase (ADI) is a prokaryotic enzyme that metabolizes arginine to citrulline and has been found to inhibit melanoma and hepatoma cancer cells deficient of ASS. We tested the hypothesis that pancreatic cancers have low ASS expression and therefore arginine deprivation by ADI will inhibit cell growth. ASS expression was examined in 47 malignant and 20 non-neoplastic pancreatic tissues as well as a panel of human pancreatic cancer cell lines. Arginine deprivation was achieved by treatment with a recombinant form of ADI formulated with polyethylene glycol (PEG-ADI). Effects on caspase activation, cell growth and cell death were examined. Furthermore, the effect of PEG-ADI on the in vivo growth of pancreatic xenografts was examined. Eighty-seven percent of the tumors lacked ASS expression; 5 of 7 cell lines similarly lacked ASS expression. PEG-ADI specifically inhibited growth of those cell lines lacking ASS. PEG-ADI treatment induced caspase activation and induction of apoptosis. PEG-ADI was well tolerated in mice despite complete elimination of plasma arginine; tumor growth was inhibited by approximately 50%. Reduced expression of ASS occurs in pancreatic cancer and predicts sensitivity to arginine deprivation achieved by PEG-ADI treatment. Therefore, these findings suggest that arginine deprivation by ADI could provide a beneficial strategy for the treatment of pancreatic cancer, a malignancy in which new therapy is desperately needed.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1002/ijc.23723

Cites

44 of 44 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • ASS1 and ASL are frequently epigenetically silenced in melanoma, renal cell carcinoma, and hepatocellular carcinoma.

    “Intriguingly, both ASS1 and ASL enzymes are frequently epigenetically silenced in melanoma, renal cell carcinoma and hepatocellular carcinoma (Bowles et al., 2008; Ensor et al., 2002; Yoon et al., 2007).”

    From The emerging hallmarks of cancer metabolism (2016) · cites this paper as Bowles et al., 2008

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 1

  1. [22]Cooper C Packer N Williams K Amino acid analysis protocols, methods in molecular biology 159 Totawa, NJ Humana Press 2000

Cited by

Sorted by citations

Authors
Bowles, T. L., Kim, R., Galante, J., Parsons, C. M., Virudachalam, S., Kung, H., & Bold, R. J.
Affiliations
University of California Davis Medical Center (US)
Corresponding author
Bold, Richard J.
Venue
International Journal of Cancer
Publisher
Wiley
Published
2008-08-13
Volume
123
Issue
8
Pages
1950-1955
ISSN
  • 0020-7136 (ISSN-L)
  • 1097-0215
OpenAlex
W2119097025
Cited by
153
References
44
Citations by year
2026: 6 · 2025: 3 · 2024: 7 · 2023: 13 · 2022: 8 · 2021: 15 · 2020: 9 · 2019: 11 · 2018: 8 · 2017: 11 · 2016: 11 · 2015: 6 · 2014: 14 · 2013: 4 · 2012: 3
FWCI
6.56
Type
journal article
Language
en
Open access
Locations
  • International Journal of Cancer (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Cancer Institute (P30CA093373)
  • National Institute of Diabetes and Digestive and Kidney Diseases (R01DK052659)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biotechnology › Cancer Research and Treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Amino Acid Enzymes and Metabolism
  • Health Sciences › Medicine › Oncology › Pancreatic and Hepatic Oncology Research
Keywords
pancreatic cancer, argininosuccinate synthetase, arginine deprivation, arginine deiminase, arginine auxotrophy, apoptosis, caspase activation, tumor xenografts, arginine metabolism, cancer cell lines
MeSH terms
Animals, Arginine, Argininosuccinate Synthase, Humans, Hydrolases, Immunohistochemistry, Mice, Nude, Pancreatic Neoplasms, Polyethylene Glycols, RNA, Messenger, Apoptosis, Xenograft Model Antitumor Assays, Cell Growth Processes, Mice

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review