Abstract | PURPOSE: The purpose of this study was to evaluate the presence and extent of hypoxia in murine retinoblastoma tumors and the feasibility of targeting hypoxic cells as a novel therapeutic strategy. METHODS: RESULTS: Hypoxic regions were observed in tumors larger than 3.28 mm(2). When 2-DG was combined with carboplatin, a marked decrease in tumor burden was observed that was significantly more pronounced than when either agent was given alone. The hypoxic tumor cell population as measured by pimonidazole was markedly reduced by carboplatin + 2-DG (P < 0.01) and by 2-DG alone (P < 0.01), but not by carboplatin alone, indicating that 2-DG effectively killed hypoxic retinoblastoma cells in vivo. CONCLUSIONS: Treatment with glycolytic inhibitors as adjuvants to chemotherapy has the potential to increase the efficacy of chemotherapy in advanced retinoblastoma. This approach may have benefits for children with this disease and should be further investigated.
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Authors | Hinda Boutrid, Maria-Elena Jockovich, Timothy G Murray, Yolanda Piña, William J Feuer, Theodore J Lampidis, Colleen M Cebulla |
Journal | Investigative ophthalmology & visual science
(Invest Ophthalmol Vis Sci)
Vol. 49
Issue 7
Pg. 2799-805
(Jul 2008)
ISSN: 1552-5783 [Electronic] United States |
PMID | 18326690
(Publication Type: Journal Article, Research Support, N.I.H., Extramural, Research Support, Non-U.S. Gov't)
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Chemical References |
- Antimetabolites
- Antineoplastic Agents
- Drug Combinations
- Deoxyglucose
- Carboplatin
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Topics |
- Animals
- Antimetabolites
(therapeutic use)
- Antineoplastic Agents
(therapeutic use)
- Carboplatin
(therapeutic use)
- Chemotherapy, Adjuvant
- Deoxyglucose
(therapeutic use)
- Disease Progression
- Drug Combinations
- Drug Synergism
- Feasibility Studies
- Glycolysis
(drug effects)
- Hypoxia
(drug therapy, etiology, pathology)
- Immunohistochemistry
- Mice
- Mice, Transgenic
- Retinal Neoplasms
(complications, drug therapy, pathology)
- Retinal Vessels
(pathology)
- Retinoblastoma
(complications, drug therapy, pathology)
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