Abstract | PURPOSE: METHODS:
LH beta-Tag-positive mice (n = 5) 10 weeks of age received two 20-microL subconjunctival injections delivered with a 72-hour interval to right eyes only. Paclitaxel was dissolved in 100% dimethyl sulfoxide ( DMSO) and delivered at doses of 0.5 mg, 0.25 mg, 0.125 mg, 0.0625 mg, 0.0313 mg, and 0.0152 mg in a 20-microL volume. Control mice received two subconjunctival injections of DMSO or of saline solution to right eyes only or they remained untreated. Eyes were analyzed at 16 weeks of age for residual tumor burden, which was measured by gauging the cross-sectional area of largest tumor focus. RESULTS: Linear regression analysis of tumor burden demonstrates a statistically significant (P < 0.001) dose-response relationship between paclitaxel concentration and tumor size. Transient ocular toxicities were observed after treatment, but most had subsided at the time of analysis, 6 weeks after injection. After histologic assessment, the 0.25-mg paclitaxel dose had effectively reduced tumor burden and was associated with minimal toxicity, including mild conjunctival chemosis and fibrosis, corneal epitheliopathy, and corneal edema. CONCLUSIONS:
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Authors | Fernando Suárez, Maria-Elena Jockovich, Eleut Hernandez, William Feuer, Jean-Marie Parel, Timothy G Murray |
Journal | Investigative ophthalmology & visual science
(Invest Ophthalmol Vis Sci)
Vol. 48
Issue 8
Pg. 3437-40
(Aug 2007)
ISSN: 0146-0404 [Print] United States |
PMID | 17652710
(Publication Type: Journal Article, Research Support, N.I.H., Extramural, Research Support, Non-U.S. Gov't)
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Chemical References |
- Antineoplastic Agents, Phytogenic
- Luteinizing Hormone, beta Subunit
- Paclitaxel
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Topics |
- Animals
- Antineoplastic Agents, Phytogenic
(pharmacology, toxicity)
- Conjunctiva
- Disease Models, Animal
- Injections, Intralesional
- Linear Models
- Luteinizing Hormone, beta Subunit
(genetics)
- Mice
- Mice, Transgenic
- Paclitaxel
(pharmacology, toxicity)
- Retinal Neoplasms
(drug therapy, pathology)
- Retinoblastoma
(drug therapy, pathology)
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