Cytosine Deaminase-Overexpressing hTERT-Immortalized Human Adipose Stem Cells Enhance the Inhibitory Effects of Fluorocytosine on Tumor Growth in Castration Resistant Prostate Canceropen access
- Authors
- Kim, Jae Heon; Yang, Hee Jo; Lee, Sang Hun; Song, Yun Seob
- Issue Date
- May-2024
- Publisher
- MDPI
- Keywords
- stem cells; prostate cancer; cytosine deaminase
- Citation
- INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES, v.25, no.10
- Journal Title
- INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
- Volume
- 25
- Number
- 10
- URI
- https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/26243
- DOI
- 10.3390/ijms25105519
- ISSN
- 1661-6596
1422-0067
- Abstract
- A promising de novo approach for the treatment of Castration-resistant prostate cancer (CRPC) exploits cell-mediated enzyme prodrug therapy comprising cytosine deaminase (CD) and fluorouracil (5-FC). The aim of this study was to determine the potential of bacterial CD-overexpressing hTERT-immortalized human adipose stem cells (hTERT-ADSC.CD) to suppress CRPC. A lentiviral vector encoding a bacterial CD gene was used to transfect and to generate the hTERT-ADSC.CD line. The ability of the cells to migrate selectively towards malignant cells was investigated in vitro. PC3 and hTERT-ADSC.CD cells were co-cultured. hTERT-ADSC.CD and 1 x 106 PC3 cells were administered to nude mice via intracardiac and subcutaneous injections, respectively, and 5-FC was given for 14 days. hTERT-ADSC.CD were successfully engineered. Enhanced in vitro hTERT-ADSC.CD cytotoxicity and suicide effect were evident following administration of 5 mu M 5-FC. hTERT-ADSC.CD, together with 5-FC, augmented the numbers of PC3 cells undergoing apoptosis. In comparison to controls administered hTERT-ADSC.CD monotherapy, hTERT-ADSC.CD in combination with 5-FC demonstrated a greater suppressive effect on tumor. In CPRC-bearing mice, tumor suppression was enhanced by the combination of CD-overexpressing ADSC and the prodrug 5-FC. Stem cells exhibiting CD gene expression are a potential novel approach to treatment for CRPC.
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Collections - College of Medicine > Department of Urology > 1. Journal Articles
- College of Medicine > Department fo Urology > 1. Journal Articles
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