Effect of growth hormone on tumor and host in an animal model

Ronald F. Wolf, Bruce Ng, Benny Weksler, Michael Burt, Murray F. Brennan

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Background: The relative effects of growth hormone on tumor versus host growth and protein metabolism are not known. This study examines the influence of recombinant rat growth hormone (r-rGH) on host and tumor growth, host body composition, and protein synthesis of tumor and host in tumor-bearing rats. Methods: After left flank implantation of methylcholanthrene-induced sarcoma, 28 Fischer rats with palpable tumor were treated with s.c. saline or 1 mg/kg/day r-rGH for 11 days. At death, fractional protein synthetic rates (FSRs) of tumor, liver, and gastrocnemius muscle were determined. In a separate experiment, 27 tumor-bearing rats received saline or 1 mg/kg/day r-rGH for 2 weeks. Tumor and host growth and host body composition were analyzed. Results: Animals treated with r-rGH had significantly higher liver FSR than did controls (233 ± 27%/day vs. 110 ± 4%/day, respectively). No significant differences were associated with growth hormone administration with respect to tumor growth, host composition, or FSR of tumor or muscle. Conclusions: Growth hormone stimulates liver protein synthesis, without changing tumor growth, protein synthesis, or host composition in this rat sarcoma model. Further investigation of growth hormone as an anticachectic agent is warranted.

Original languageEnglish (US)
Pages (from-to)314-320
Number of pages7
JournalAnnals of Surgical Oncology
Volume1
Issue number4
DOIs
StatePublished - Jul 1 1994

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Growth Hormone
Animal Models
Neoplasms
Proteins
Growth
Body Composition
Sarcoma
Liver
Methylcholanthrene
Inbred F344 Rats
Skeletal Muscle
Muscles

All Science Journal Classification (ASJC) codes

  • Surgery
  • Oncology

Cite this

Effect of growth hormone on tumor and host in an animal model. / Wolf, Ronald F.; Ng, Bruce; Weksler, Benny; Burt, Michael; Brennan, Murray F.

In: Annals of Surgical Oncology, Vol. 1, No. 4, 01.07.1994, p. 314-320.

Research output: Contribution to journalArticle

Wolf, Ronald F. ; Ng, Bruce ; Weksler, Benny ; Burt, Michael ; Brennan, Murray F. / Effect of growth hormone on tumor and host in an animal model. In: Annals of Surgical Oncology. 1994 ; Vol. 1, No. 4. pp. 314-320.
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