A Novel Combination Treatment of Armed Oncolytic Adenovirus Expressing IL-12 and GM-CSF with Radiotherapy in Murine Hepatocarcinoma
- Authors
- Kim, W; Seong, J; Oh, HJ; Koom, WS; Choi, KJ; Yun, CO
- Issue Date
- Sep-2011
- Publisher
- OXFORD UNIV PRESS
- Keywords
- Oncolytic adenovirusInterleukin 12Granulocyte-macrophage colony-stimulating factorRadiationApoptosis
- Citation
- JOURNAL OF RADIATION RESEARCH, v.52, no.5, pp.646 - 654
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF RADIATION RESEARCH
- Volume
- 52
- Number
- 5
- Start Page
- 646
- End Page
- 654
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/27698
- DOI
- 10.1269/jrr.10185
- ISSN
- 0449-3060
- Abstract
- In this study, a novel combination treatment of armed oncolytic adenovirus expressing interleukin 12 (IL-12) and granulocyte-macrophage colony-stimulating factor (GM-CSF) with radiation was investigated for antitumor and antimetastatic effect in a murine hepatic cancer (HCa-I) model. Tumor bearing syngeneic mice were treated with radiation, armed oncolytic virus Ad-Delta E1Bmt7 (dB7) expressing both IL-12 and GM-CSF (armed dB7), or a combination of both. The adenovirus was administered by intratumoral injection 1 x 10(8) PFU per tumor in 50 mu l of PBS four times every other day. Tumor response to treatment was determined by a tumor growth delay assay. Metastatic potential was evaluated by a lung metastasis model. To understand the underlying mechanism, the level of apoptosis was examined as well as the change in microvessel density and expression of immunological markers: CD4+, CD8+ and Cd11c. The combination of armed dB7 and radiation resulted in significant growth delay of murine hepatic cancer, HCa-1, with an enhancement factor of 4.3. The combination treatment also resulted in significant suppression of lung metastasis. Increase of apoptosis level as well as decrease of microvessel density was shown in the combination treatment, suggesting an underlying mechanism for the enhancement of antitumor effect. Expression of immunological markers: CD4+, CD8+ and Cd11c also increased in the combination treatment. This study showed that a novel combination treatment of radiotherapy with armed oncolytic adenovirus expressing IL-12 and GM-CSF was effective in suppressing primary tumor growth.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - 서울 공과대학 > 서울 생명공학과 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/27698)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.