PMID- 19584147 OWN - NLM STAT- MEDLINE DCOM- 20090928 LR - 20211020 IS - 1557-3265 (Electronic) IS - 1078-0432 (Print) IS - 1078-0432 (Linking) VI - 15 IP - 14 DP - 2009 Jul 15 TI - Prevention of radiation-induced oral mucositis after adenoviral vector-mediated transfer of the keratinocyte growth factor cDNA to mouse submandibular glands. PG - 4641-8 LID - 10.1158/1078-0432.CCR-09-0819 [doi] AB - PURPOSE: The study aims to evaluate if human keratinocyte growth factor (hKGF), secreted after transduction of murine salivary glands with adenoviral vectors, can prevent oral mucositis resulting from radiation. EXPERIMENTAL DESIGN: Two serotype 5 adenoviral vectors encoding hKGF were constructed: AdEF1alpha-hKGF and AdLTR(2)EF1alpha-hKGF. Female C3H mice, 8 weeks old, were irradiated by single (22.5 Gy) or fractionated (5 x 8 Gy for 5 days) doses to induce oral mucositis (ulcers on tongue). One day before irradiation, the above viral vectors or an empty vector, Adcontrol, was given (10(10) particles per gland) to both submandibular glands by retrograde ductal instillation. Each experiment included five groups: no irradiation and irradiation (+/-Adcontrol, AdEF1alpha-hKGF, or AdLTR(2)EF1alpha-hKGF). Blood, saliva, submandibular glands, and tongue were collected on day 7 for single-dose studies or day 10 for fractionated dosing. hKGF levels were measured by ELISA. RESULTS: In three separate single-dose irradiation experiments, lingual ulcers were dramatically reduced after either KGF-expressing vector. Similarly, in two separate fractionated irradiation experiments, the hKGF-expressing vectors completely prevented ulcer formation. QPCR data indicated that approximately 10(7) to 10(8) particles of each vector remained in the targeted submandibular glands at the terminal time. Transgenic hKGF protein was found at high levels in saliva, serum, and submandibular gland extracts. CONCLUSIONS: hKGF gene transfer to salivary glands prevented radiation-induced oral mucositis in mice. This proof of concept study suggests that transgenic hKGF secreted from transduced salivary glands may be useful clinically to prevent oral mucositis caused by radiation. FAU - Zheng, Changyu AU - Zheng C AD - Molecular Physiology and Therapeutics Branch, National Institute of Dental and Craniofacial Research, National Cancer Institute, Bethesda, Maryland, USA. FAU - Cotrim, Ana P AU - Cotrim AP FAU - Sunshine, Abraham N AU - Sunshine AN FAU - Sugito, Takayuki AU - Sugito T FAU - Liu, Lina AU - Liu L FAU - Sowers, Anastasia AU - Sowers A FAU - Mitchell, James B AU - Mitchell JB FAU - Baum, Bruce J AU - Baum BJ LA - eng GR - Z01 DE000336-26/ImNIH/Intramural NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Intramural DEP - 20090707 PL - United States TA - Clin Cancer Res JT - Clinical cancer research : an official journal of the American Association for Cancer Research JID - 9502500 RN - 0 (DNA, Complementary) RN - 0 (FGF7 protein, human) RN - 126469-10-1 (Fibroblast Growth Factor 7) SB - IM MH - Adenoviridae/genetics MH - Analysis of Variance MH - Animals MH - Cell Line MH - DNA, Complementary/genetics MH - Enzyme-Linked Immunosorbent Assay MH - Female MH - Fibroblast Growth Factor 7/blood/genetics/*metabolism MH - Genetic Therapy/*methods MH - Genetic Vectors/genetics MH - Humans MH - Mice MH - Mice, Inbred C3H MH - Radiation Injuries, Experimental/complications/*prevention & control MH - Saliva/chemistry MH - Stomatitis/etiology/pathology/*prevention & control MH - Submandibular Gland/metabolism/pathology/*radiation effects MH - Transduction, Genetic PMC - PMC2769927 MID - NIHMS149125 COIS- Disclosure of Potential Conflicts of Interest No potential conflicts of interest were disclosed. EDAT- 2009/07/09 09:00 MHDA- 2009/09/29 06:00 PMCR- 2010/07/15 CRDT- 2009/07/09 09:00 PHST- 2009/07/09 09:00 [entrez] PHST- 2009/07/09 09:00 [pubmed] PHST- 2009/09/29 06:00 [medline] PHST- 2010/07/15 00:00 [pmc-release] AID - 1078-0432.CCR-09-0819 [pii] AID - 10.1158/1078-0432.CCR-09-0819 [doi] PST - ppublish SO - Clin Cancer Res. 2009 Jul 15;15(14):4641-8. doi: 10.1158/1078-0432.CCR-09-0819. Epub 2009 Jul 7.