Antitumor activity of orally administered SMANCS, a polymer-conjugated protein drug, in mice bearing various murine tumours

D. A. Schmitt, K. Kisanuki, S. Kimura, K. Oka, R. B. Pollard, H. Maeda, Fujio Suzuki

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The antitumor activity of an oily formulation of SMANCS (oily SMANCS), which is a product of conjugation between a proteinaceous antitumor antibiotic neocarzinostatin and poly (styrene-co-maleic acid), after oral administration to mice inoculated with various murine tumors was investigated. BALBlc mice, inoculated either s.c. or i.p. with allogeneic (sarcoma-180) or syngeneic (RL♂1 leukemia and Meth A fibrosarcoma) tumors, were treated with oily SMANCS orally or with an aqueous formulation of SMANCS (aqueous SMANCS) i.v. or i.p. Oral administrations of oily SMANCS or i.v. administrations of aqueous SMANCS to mice bearing three types of tumors in the ascites form resulted in a weak inhibition of tumor growth as compared to the complete inhibition of these tumors by aqueous SMANCS administered i.p. In mice bearing solid tumors, tumor growth was inhibited by 63-82% when a 10 mg/kg dose of oily SMANCS was administered orally to these mice. The antitumor potential of oily SMANCS administered orally was comparable to that obtained from solid tumor-bearing mice receiving i. v. doses of aqueous SMANCS. These results suggest that the oral administration of oily SMANCS to mice bearing various solid tumors inhibits the tumor growth as effectively as aqueous SMANCS administered i.v.

Original languageEnglish (US)
Pages (from-to)2219-2224
Number of pages6
JournalAnticancer Research
Volume12
Issue number6 B
StatePublished - 1992

Fingerprint

Polymers
Pharmaceutical Preparations
Neoplasms
Proteins
Oral Administration
poly(maleic acid-styrene)neocarzinostatin
Growth
Zinostatin
Sarcoma 180
Fibrosarcoma
Ascites
Leukemia
Anti-Bacterial Agents

Keywords

  • Antitumor activity
  • Oral administration
  • Polymer-conjugated neocarzinostatin
  • Proteinaceous antibiotic

ASJC Scopus subject areas

  • Cancer Research
  • Oncology

Cite this

Schmitt, D. A., Kisanuki, K., Kimura, S., Oka, K., Pollard, R. B., Maeda, H., & Suzuki, F. (1992). Antitumor activity of orally administered SMANCS, a polymer-conjugated protein drug, in mice bearing various murine tumours. Anticancer Research, 12(6 B), 2219-2224.

Antitumor activity of orally administered SMANCS, a polymer-conjugated protein drug, in mice bearing various murine tumours. / Schmitt, D. A.; Kisanuki, K.; Kimura, S.; Oka, K.; Pollard, R. B.; Maeda, H.; Suzuki, Fujio.

In: Anticancer Research, Vol. 12, No. 6 B, 1992, p. 2219-2224.

Research output: Contribution to journalArticle

Schmitt, DA, Kisanuki, K, Kimura, S, Oka, K, Pollard, RB, Maeda, H & Suzuki, F 1992, 'Antitumor activity of orally administered SMANCS, a polymer-conjugated protein drug, in mice bearing various murine tumours', Anticancer Research, vol. 12, no. 6 B, pp. 2219-2224.
Schmitt DA, Kisanuki K, Kimura S, Oka K, Pollard RB, Maeda H et al. Antitumor activity of orally administered SMANCS, a polymer-conjugated protein drug, in mice bearing various murine tumours. Anticancer Research. 1992;12(6 B):2219-2224.
Schmitt, D. A. ; Kisanuki, K. ; Kimura, S. ; Oka, K. ; Pollard, R. B. ; Maeda, H. ; Suzuki, Fujio. / Antitumor activity of orally administered SMANCS, a polymer-conjugated protein drug, in mice bearing various murine tumours. In: Anticancer Research. 1992 ; Vol. 12, No. 6 B. pp. 2219-2224.
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