Faculty Collaboration Database

Prevention of gallium toxicity by hyperhydration in treatment of medulloblastoma. Pediatr Neurol 1994 May;10(3):217-20

Date

05/01/1994

Pubmed ID

8060423

DOI

10.1016/0887-8994(94)90026-4

Scopus ID

2-s2.0-0028292326 (requires institutional sign-in at Scopus site)   6 Citations

Abstract

In vitro and in vivo studies have established gallium nitrate as an effective chemotherapeutic agent against human medulloblastoma. In vitro, gallium nitrate reduced cell proliferation and DNA synthesis of medulloblastoma Daoy. Gallium inhibits the availability of 59Fe to ribonucleotide reductase and has a direct effect on the enzyme itself. In vivo, gallium demonstrated similar effects on the medulloblastoma Daoy cell line in nude mice. Tumor growth rate and actual size were decreased; however, severe nephrotoxicity and mortality were observed. In our study, intradermal injections of medulloblastoma Daoy cells were given to nude mice and then tumors were allowed to grow. Tumor-bearing mice received a 15-day gallium (50 mg/kg/day) regimen, 20-day rest, 7-day gallium (66.5 mg/kg/day) dose escalation regimen beginning when tumor size exceeded 8-10 mm in diameter. All treated and control mice received saline hyperhydration during both treatment sessions. Our study resulted in the prevention of severe toxicity and an inhibition of tumor growth. No toxicity occurred with gallium nitrate at 50 mg/kg/day. Severe morbidity and mortality were observed at the higher gallium dose level (66.5 mg/kg/day), suggesting that the 50 mg/kg/day dose is the appropriate level when investigating gallium nitrate as a chemotherapy agent in nude mice.

Author List

Whelan HT, Williams MB, Bajic DM, Segura AD, McAuliffe TL, Chitambar CR

Authors

Christopher Chitambar MBBS Emeritus Professor in the Biophysics department at Medical College of Wisconsin
Timothy L. McAuliffe PhD Professor in the Psychiatry and Behavioral Medicine department at Medical College of Wisconsin
Annette D. Segura MD Adjunct Assistant Professor in the Pathology and Laboratory Medicine department at Medical College of Wisconsin
Harry Whelan MD Emeritus Professor in the Neurology department at Medical College of Wisconsin

MESH terms used to index this publication - Major topics in bold

Animals
Antineoplastic Agents
Blood Urea Nitrogen
Cell Division
Cell Line
Cerebellar Neoplasms
Dose-Response Relationship, Drug
Fluid Therapy
Gallium
Kidney
Medulloblastoma
Mice
Mitotic Index
Neoplasm Transplantation
Sodium Chloride
Water-Electrolyte Balance