[D-Arg1, D-Phe5, D-Trp7,9, Leu11] substance P inhibits the growth of human small cell lung cancer xenografts in vivo.
Eur J Cancer
; 29A(10): 1450-3, 1993.
Article
em En
| MEDLINE
| ID: mdl-7691115
ABSTRACT
We report the effect of substance P analogue, [D-Arg1, D-Phe5, D-Trp7,9, Leu11] substance P (D-Phe5SP), on the growth of human small cell lung cancer (SCLC) xenografts HC12 and ICR-SC112. Daily intraperitoneal (ip) administration (500 micrograms/day for 3 weeks) had no effect on HC12 growth rate. When administered by continuous 14-day subcutaneous (sc) infusion by osmotic minipump implanted adjacent to the tumour, D-Phe5SP 2.1 micrograms/day, caused significant inhibition (P < 0.05) of the growth of HC12 and ICR-SC112 on day 7 and day 14 compared with phosphate buffered saline (PBS)-treated controls. HC12 and ICR-SC112 tumour volume remained at 53-67% of control for 14-21 days postinfusion. D-Phe5SP 1 mg/day did not inhibit tumour growth, but dense fibrous capsules developed at the minipump outlet. Animals treated by sc infusion (but not ip) of PBS or D-Phe5SP failed to gain weight, and some groups lost weight. D-Phe5SP-treated animals had lower white blood counts than controls (not significant). These data suggest a potential clinical role for D-Phe5SP in the treatment of SCLC.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Proteínas Recombinantes
/
Substância P
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Carcinoma de Células Pequenas
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Neoplasias Pulmonares
Limite:
Animals
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Humans
Idioma:
En
Revista:
Eur J Cancer
Ano de publicação:
1993
Tipo de documento:
Article
País de afiliação:
Reino Unido