PMID- 11485630 OWN - NLM STAT- MEDLINE DCOM- 20011205 LR - 20060421 IS - 1043-0342 (Print) IS - 1043-0342 (Linking) VI - 12 IP - 11 DP - 2001 Jul 20 TI - Aerosol and lobar administration of a recombinant adenovirus to individuals with cystic fibrosis. II. Transfection efficiency in airway epithelium. PG - 1383-94 AB - A phase I clinical trial was conducted in which recombinant adenovirus containing the cystic fibrosis trans-membrane regulator (CFTR) (Ad2/CFTR) was administered by bronchoscopic instillation or aerosolization to the lungs of cystic fibrosis (CF) patients. In this paper, we evaluate the efficiency of Ad2/CFTR-mediated transduction of bronchial airway cells. The ability of an Ad2/CFTR vector to transduce airway cells was first evaluated in patients to whom the vector was administered by bronchoscopic instillation. Cells at the administration site were collected 2 days after treatment by bronchoscopic brushing. Ad2-specific CFTR DNA was detected in four of five individuals by PCR, and Ad2-specific CFTR RNA was detected in three of five individuals by RT-PCR. Ad2/CFTR-mediated transduction of airway epithelial cells was then determined in CF individuals receiving this vector by aerosol inhalation. Ad2-specific CFTR DNA was detected in 13 of 13 individuals 2 days after aerosolization, and in 3 of 5 individuals 7 days after aerosolization. Ad2-specific RNA was detected in 4 of 13 individuals on day 2, but was not detected in the 5 individuals tested on day 7. The percentage of airway epithelial cells containing nuclear-localized vector DNA was < or =2.4% as determined by fluorescence in situ hybridization (FISH). However, in some cases, a high percentage of nonepithelial mononuclear cells or squamous metaplastic epithelial cells was infected with the adenoviral vector. In conclusion, aerosol administration is a feasible means to distribute adenoviral vectors throughout the conducting airways, but improvements in adenovirus-mediated transduction of airway epithelial cells are necessary before gene therapy for CF will be effective. FAU - Perricone, M A AU - Perricone MA AD - Genzyme Corporation, Framingham, MA 01701, USA. michael. perricone@genyme.com FAU - Morris, J E AU - Morris JE FAU - Pavelka, K AU - Pavelka K FAU - Plog, M S AU - Plog MS FAU - O'Sullivan, B P AU - O'Sullivan BP FAU - Joseph, P M AU - Joseph PM FAU - Dorkin, H AU - Dorkin H FAU - Lapey, A AU - Lapey A FAU - Balfour, R AU - Balfour R FAU - Meeker, D P AU - Meeker DP FAU - Smith, A E AU - Smith AE FAU - Wadsworth, S C AU - Wadsworth SC FAU - St George, J A AU - St George JA LA - eng PT - Clinical Trial PT - Clinical Trial, Phase I PT - Journal Article PT - Multicenter Study PL - United States TA - Hum Gene Ther JT - Human gene therapy JID - 9008950 RN - 0 (CFTR protein, human) RN - 0 (DNA, Recombinant) RN - 0 (RNA, Messenger) RN - 0 (Recombinant Proteins) RN - 126880-72-6 (Cystic Fibrosis Transmembrane Conductance Regulator) SB - IM MH - Adenoviridae/*genetics MH - Administration, Inhalation MH - Adolescent MH - Adult MH - Bronchoscopy MH - Cystic Fibrosis/*therapy MH - Cystic Fibrosis Transmembrane Conductance Regulator/*genetics MH - DNA, Recombinant MH - Female MH - Genetic Vectors MH - Humans MH - In Situ Hybridization, Fluorescence MH - Instillation, Drug MH - Male MH - Polymerase Chain Reaction MH - RNA, Messenger/metabolism MH - Recombinant Proteins/isolation & purification MH - Respiratory Mucosa/*metabolism MH - Time Factors MH - Transduction, Genetic MH - *Transfection EDAT- 2001/08/04 10:00 MHDA- 2002/01/05 10:01 CRDT- 2001/08/04 10:00 PHST- 2001/08/04 10:00 [pubmed] PHST- 2002/01/05 10:01 [medline] PHST- 2001/08/04 10:00 [entrez] AID - 10.1089/104303401750298544 [doi] PST - ppublish SO - Hum Gene Ther. 2001 Jul 20;12(11):1383-94. doi: 10.1089/104303401750298544.