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Enhanced antitumor efficacy of telomerase‐selective oncolytic adenoviral agent OBP‐401 with docetaxel: Preclinical evaluation of chemovirotherapy
International journal of cancer, 2006-07, Vol.119 (2), p.432-440
Fujiwara, Toshiya
Kagawa, Shunsuke
Kishimoto, Hiroyuki
Endo, Yoshikatsu
Hioki, Masayoshi
Ikeda, Yoshihiro
Sakai, Ryo
Urata, Yasuo
Tanaka, Noriaki
Fujiwara, Toshiyoshi
2006
Details
Autor(en) / Beteiligte
Fujiwara, Toshiya
Kagawa, Shunsuke
Kishimoto, Hiroyuki
Endo, Yoshikatsu
Hioki, Masayoshi
Ikeda, Yoshihiro
Sakai, Ryo
Urata, Yasuo
Tanaka, Noriaki
Fujiwara, Toshiyoshi
Titel
Enhanced antitumor efficacy of telomerase‐selective oncolytic adenoviral agent OBP‐401 with docetaxel: Preclinical evaluation of chemovirotherapy
Ist Teil von
International journal of cancer, 2006-07, Vol.119 (2), p.432-440
Ort / Verlag
Hoboken: Wiley Subscription Services, Inc., A Wiley Company
Erscheinungsjahr
2006
Link zum Volltext
Quelle
MEDLINE
Beschreibungen/Notizen
Oncolytic adenoviruses are being developed as novel anticancer therapeutics and currently undergoing clinical trials. We previously demonstrated that telomerase‐specific replication‐competent adenovirus (Telomelysin: OBP‐301), in which the human telomerase reverse transcriptase (hTERT) promoter regulates viral replication, efficiently killed human tumor cells. We further constructed OBP‐401 (Telomelysin‐GFP) that expresses the green fluorescent protein (GFP) reporter gene under the control of the cytomegalovirus promoter in the E3 region to monitor viral distribution. Here, we examined the feasibility of a single‐agent therapy with OBP‐401 as well as of combining OBP‐401 with chemotherapeutic agents. Infection of OBP‐401 alone or followed by the treatment of a chemotherapeutic drug, docetaxel (Taxotere), resulted in a profound in vitro cytotoxicity and GFP expression in various human cancer cell lines originating from different organs (lung, colon, esophagus, stomach, liver and prostate), although the magnitude of antitumor effect varied among the cell types. Other chemotherapeutic drugs such as vinorelbine (Navelbine) and SN38 (the potent active metabolite of irinotecan) combined with OBP‐401 also inhibited the growth of human cancer cells. Quantitative real‐time PCR analysis demonstrated that docetaxel did not affect viral replication. For in vivo evaluation, nu/nu mice xenografted with H1299 human lung tumor received intratumoral injection of OBP‐401 and intraperitoneal administration of docetaxel. Analysis of growth of implanted tumors showed a significant, therapeutic synergism, although OBP‐401 alone and docetaxel alone showed modest inhibition of tumor growth. Thus, OBP‐401 in combination with docetaxel efficiently enhances the antitumor efficacy both in vitro and in vivo, and the outcome has important implications for tumor‐specific oncolytic chemovirotherapies for human cancers. © 2006 Wiley‐Liss, Inc.
Sprache
Englisch
Identifikatoren
ISSN: 0020-7136
eISSN: 1097-0215
DOI: 10.1002/ijc.21846
Titel-ID: cdi_proquest_miscellaneous_68066724
Format
–
Schlagworte
Adenoviridae - genetics
,
Adenovirus
,
Animals
,
Antineoplastic Agents - administration & dosage
,
Antineoplastic Agents - pharmacology
,
Antineoplastic Agents, Phytogenic - pharmacology
,
Antineoplastic Combined Chemotherapy Protocols - pharmacology
,
Biological and medical sciences
,
Carcinoma - drug therapy
,
Carcinoma, Non-Small-Cell Lung - drug therapy
,
Cell Line, Tumor
,
Colorectal Neoplasms - drug therapy
,
combination therapy
,
Cytomegalovirus
,
docetaxel
,
Drug Carriers
,
Esophageal Neoplasms - drug therapy
,
Feasibility Studies
,
Gene Expression Regulation, Neoplastic
,
GFP
,
Green Fluorescent Proteins - drug effects
,
Green Fluorescent Proteins - metabolism
,
Humans
,
Lung Neoplasms - drug therapy
,
Medical sciences
,
Mice
,
Mice, Nude
,
Neoplasms - drug therapy
,
Neoplasms - enzymology
,
oncolytic adenovirus
,
Other treatments
,
Polymerase Chain Reaction
,
Stomach Neoplasms - drug therapy
,
Taxoids - pharmacology
,
Telomerase - drug effects
,
Transplantation, Heterologous
,
Treatment. General aspects
,
Tumors
,
Vinblastine - analogs & derivatives
,
Vinblastine - pharmacology
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