Cited by 298Proteoglycans and glycosaminoglycans researchHydrogels: synthesis, properties, applicationsCancer, Hypoxia, and Metabolism

Enzymatic Depletion of Tumor Hyaluronan Induces Antitumor Responses in Preclinical Animal Models

Thompson, Curtis B., Shepard, H. Michael, O'Connor, Patrick M., Kadhim, Salam, Jiang, Ping, Osgood, Ryan J., Bookbinder, Louis H., Li, Xiaoming +4 more·2010·Molecular Cancer Therapeutics

Published version of a preprint

Abstract

Hyaluronan (HA) is a glycosaminoglycan polymer that often accumulates in malignancy. Megadalton complexes of HA with proteoglycans create a hydrated connective tissue matrix, which may play an important role in tumor stroma formation. Through its colloid osmotic effects, HA complexes contribute to tumor interstitial fluid pressure, limiting the effect of therapeutic molecules on malignant cells. The therapeutic potential of enzymatic remodeling of the tumor microenvironment through HA depletion was initially investigated using a recombinant human HA-degrading enzyme, rHuPH20, which removed HA-dependent tumor cell extracellular matrices in vitro. However, rHuPH20 showed a short serum half-life (t(1/2) < 3 minutes), making depletion of tumor HA in vivo impractical. A pegylated variant of rHuPH20, PEGPH20, was therefore evaluated. Pegylation improved serum half-life (t(1/2) = 10.3 hours), making it feasible to probe the effects of sustained HA depletion on tumor physiology. In high-HA prostate PC3 tumors, i.v. administration of PEGPH20 depleted tumor HA, decreased tumor interstitial fluid pressure by 84%, decreased water content by 7%, decompressed tumor vessels, and increased tumor vascular area >3-fold. Following repeat PEGPH20 administration, tumor growth was significantly inhibited (tumor growth inhibition, 70%). Furthermore, PEGPH20 enhanced both docetaxel and liposomal doxorubicin activity in PC3 tumors (P < 0.05) but did not significantly improve the activity of docetaxel in low-HA prostate DU145 tumors. The ability of PEGPH20 to enhance chemotherapy efficacy is likely due to increased drug perfusion combined with other tumor structural changes. These results support enzymatic remodeling of the tumor stroma with PEGPH20 to treat tumors characterized by the accumulation of HA.

Integrity signals

Registry

Crossref · 10.1158/1535-7163.mct-10-0470

Cites

50 of 50 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

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?

  • HA-degradable PEGPH20 in integration with gemcitabine demonstrated enhanced therapeutic effects in animal models.

    “HA-degradable PEGPH20 in integration with gemcitabine has demonstrated enhanced therapeutic effects in animal models [56,57].”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Thompson, C. B., Shepard, H. M., O'Connor, P. M., Kadhim, S., Jiang, P., Osgood, R. J., Bookbinder, L. H., Li, X., Sugarman, B. J., Connor, R. J., Nadjsombati, S., & Frost, G. I.
Affiliations
Halozyme Therapeutics (United States) (US)
Venue
Molecular Cancer Therapeutics
Published
2010-11-01
Volume
9
Issue
11
Pages
3052-3064
ISSN
  • 1535-7163 (ISSN-L)
  • 1538-8514
OpenAlex
W2168467781
Cited by
298
References
50
Citations by year
2026: 12 · 2025: 14 · 2024: 12 · 2023: 28 · 2022: 24 · 2021: 30 · 2020: 22 · 2019: 36 · 2018: 19 · 2017: 19 · 2016: 17 · 2015: 11 · 2014: 19 · 2013: 12 · 2012: 18
FWCI
4.75
Type
journal article
Language
en
Open access
closed
Locations
  • Molecular Cancer Therapeutics (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Proteoglycans and glycosaminoglycans research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Medicine › Hydrogels: synthesis, properties, applications
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Hypoxia, and Metabolism
Keywords
PEGPH20, rHuPH20, hyaluronidase, tumor stroma remodeling, tumor microenvironment, interstitial fluid pressure, prostate cancer, docetaxel, liposomal doxorubicin, chemotherapy enhancement, drug delivery, PEGylation, serum half-life
MeSH terms
Animals, Antineoplastic Agents, Cricetulus, Drug Synergism, Cricetinae, Humans, Hyaluronic Acid, Hyaluronoglucosaminidase, Male, Mice, Inbred ICR, Mice, Nude, Polyethylene Glycols, Recombinant Proteins, Tumor Cells, Cultured, Cell Adhesion Molecules, Up-Regulation, CHO Cells, Xenograft Model Antitumor Assays, Mice, Rats

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