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Journal of Environmental Pathology, Toxicology and Oncology
Fator do impacto: 1.625 FI de cinco anos: 1.63 SJR: 0.402 SNIP: 0.613 CiteScore™: 2.3

ISSN Imprimir: 0731-8898
ISSN On-line: 2162-6537

Journal of Environmental Pathology, Toxicology and Oncology

DOI: 10.1615/JEnvironPatholToxicolOncol.v30.i1.10
pages 1-10

Topoisomerase I inhibitor SN-38 effectively attenuates growth of human non-small cell lung cancer cell lines in vitro and in vivo

Dharmendra Kumar Maurya
Department of Anatomy and Physiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA
Rie Ayuzawa
Department of Anatomy and Physiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA
Chiyo Doi
Department of Anatomy and Physiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA
Deryl Troyer
Department of Anatomy and Physiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA
Masaaki Tamura
KANSAS STATE UNIVERSITY

RESUMO

The effect of SN-38 was evaluated on multiple lung cancer cell lines. It inhibits anchorage-dependent and -independent growth as monitored by MTT and soft agar colony assay, respectively. SN-38 collapsed the mitochondrial membrane potential (MMP), arrested cells in S- and G2-phases of the cell cycle, and induced apoptosis via activation of caspase 3 and PARP. A single injection of 2mg/kg body weight of SN-38 caused a significant reduction of lung cancer xenografts. These findings indicate that SN-38 induces apoptosis in the lung cancer cells effectively. Thus, SN-38 can potentially be an effective therapeutic agent against lung cancer.


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