title: A new animal model of continuous catheterization for investigating mechanisms of arteritis associated with chemotherapy.
abstract: Although superselective continuous intra-arterial infusion has advantages for cancer therapy, intra-arterial chemotherapy is often interrupted by arterial damage due to arteritis. Therefore, an animal model must be developed to elucidate the mechanism of arteritis associated with continuous anti-cancer drug infusion. We developed a new rat model with which to investigate the causal mechanism(s) of vascular damage associated with continuous catheterization chemotherapy. Chemotherapeutic agents (fluorouracil (5-FU) or peplomycin (PEP)) were continuously administered for 7 days into the abdominal aorta of male Sprague-Dawley rats through a catheter fixed in situ. We found that the incidence of apoptotic endothelial cells of the aorta was higher nearer the tip of the catheter. The incidence of apoptosis was higher in the group treated with 5-FU than with PEP. This animal model will be useful to improve arterial damage among patients undergoing chemotherapy using continuous catheterization.
authors.affiliation: Division of Oral and Maxillofacial Biopathological Surgery, Department of Medicine of Sensory and Motor Organs, Faculty of Medicine, Tottori University, 36-1 Nishicho, Yonago 683-8504, Japan.
authors.forename: Masaki
authors.initials: M
authors.lastname: Sudoh
authors.forename: Yosuke
authors.initials: Y
authors.lastname: Kishimoto
authors.forename: Akira
authors.initials: A
authors.lastname: Marumoto
authors.forename: Mikio
authors.initials: M
authors.lastname: Inoue
authors.forename: Akiko
authors.initials: A
authors.lastname: Sano
authors.forename: Norimasa
authors.initials: N
authors.lastname: Miura
authors.forename: Yasushi
authors.initials: Y
authors.lastname: Horie
authors.forename: Junichi
authors.initials: J
authors.lastname: Hasegawa
authors.forename: Kazuo
authors.initials: K
authors.lastname: Ryoke
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000009:adverse effects*; D001012:Aorta, Abdominal / Q000187:drug effects* / Q000473:pathology; D017209:Apoptosis / Q000187:drug effects; D001167:Arteritis / Q000209:etiology* / Q000473:pathology; D002404:Catheterization; D004730:Endothelium, Vascular / Q000187:drug effects / Q000473:pathology; D005472:Fluorouracil / Q000009:adverse effects*; D020287:In Situ Nick-End Labeling; D007261:Infusions, Intra-Arterial / Q000295:instrumentation* / Q000379:methods*; D008297:Male; D023421:Models, Animal; D017663:Peplomycin / Q000009:adverse effects*; D051381:Rats; D017207:Rats, Sprague-Dawley
chemical_list: D000970:Antineoplastic Agents; D017663:Peplomycin; D005472:Fluorouracil