PMID- 8573611 OWN - NLM STAT- MEDLINE DCOM- 19960314 LR - 20121115 IS - 1043-0342 (Print) IS - 1043-0342 (Linking) VI - 6 IP - 11 DP - 1995 Nov TI - Transduction of rIL-2 expanded CD4+ and CD8+ ovarian TIL-derived T cell lines with the G1Na (neor) replication-deficient retroviral vector. PG - 1379-89 AB - We have expanded ovarian tumor-infiltrating lymphocytes (TIL) in low concentrations of recombinant interleukin-2 (rIL-2) to conduct intraperitoneal adoptive immunotherapy trials in patients with ovarian cancer. We have previously demonstrated that certain T cell lines and clones derived from ovarian TIL exhibit in vitro autologous tumor-specific cytotoxicity and/or cytokine production (interferon-gamma, tumor necrosis factor-alpha) preferentially in response to autologous tumor cells. Studies that utilize a marker gene introduced into the DNA of TIL can provide useful information on specific uptake or localization of TIL at tumor sites and on the survival of TIL in vivo. We have conducted a series of preclinical experiments in which we have successfully transfected TIL with G1Na, which encodes the gene for neomycin phosphotransferase (neoR). NeoR was detected in at least 10% of CD8+ cells (mean = 10.4%) and between 2.5 and 20% of CD4+ TIL (mean = 8.5%). Transduction of ovarian TIL with G1Na caused no substantial changes to the T cell phenotypes or in vitro cytotoxicities against ovarian and hematogenous tumor cell targets, or on the rIL-2 requirements of TIL for growth and proliferation. In addition, the intact G1Na provirus in transduced TIL cells was rescuable by replication-competent retrovirus and was transferred into the genome of NIH-3T3 fibroblasts, which were rendered resistant to G418. An enhanced polymerase chain reaction (PCR) procedure utilizing detection by ethidium bromide staining was developed. The enhanced PCR detected 1 in 100,000 neoR-labeled cells. Furthermore, detection of the G1Na genome in transduced TIL by in situ hybridization with an RNA probe provided evidence for expression of the neoR gene in transduced TIL. Results obtained from these studies suggest that ovarian TIL-derived T cell lines transduced with the neoR gene post infection with the G1Na retroviral vector can be utilized to examine the in vivo trafficking pattern of ovarian TIL-derived T cell lines expanded in low concentrations of rIL-2 and their survival. FAU - Nash, M A AU - Nash MA AD - Department of Gynecologic Oncology, University of Texas M.D. Anderson Cancer Center, Houston 77030, USA. FAU - Platsoucas, C D AU - Platsoucas CD FAU - Wong, B Y AU - Wong BY FAU - Wong, P M AU - Wong PM FAU - Cottler-Fox, M AU - Cottler-Fox M FAU - Otto, E AU - Otto E FAU - Freedman, R S AU - Freedman RS LA - eng GR - CA-52308/CA/NCI NIH HHS/United States GR - CA-57884/CA/NCI NIH HHS/United States GR - CA-64943-01/CA/NCI NIH HHS/United States GR - etc. PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Hum Gene Ther JT - Human gene therapy JID - 9008950 RN - 0 (DNA Primers) RN - 0 (Interleukin-2) RN - EC 2.7.1.- (Phosphotransferases (Alcohol Group Acceptor)) RN - EC 2.7.1.95 (Kanamycin Kinase) SB - IM MH - 3T3 Cells MH - Animals MH - Base Sequence MH - CD4-Positive T-Lymphocytes/cytology/*immunology MH - CD8-Positive T-Lymphocytes/cytology/*immunology MH - Cell Line MH - Cytotoxicity, Immunologic MH - DNA Primers MH - Female MH - Genetic Therapy MH - *Genetic Vectors MH - Humans MH - Interleukin-2/immunology MH - Kanamycin Kinase MH - Lymphocyte Activation MH - Lymphocytes, Tumor-Infiltrating/cytology/*immunology MH - Mice MH - Molecular Sequence Data MH - Ovarian Neoplasms/*immunology/pathology/therapy MH - Phosphotransferases (Alcohol Group Acceptor)/*genetics MH - Polymerase Chain Reaction MH - Retroviridae/*genetics/physiology MH - *Transformation, Genetic MH - Tumor Cells, Cultured EDAT- 1995/11/01 00:00 MHDA- 1995/11/01 00:01 CRDT- 1995/11/01 00:00 PHST- 1995/11/01 00:00 [pubmed] PHST- 1995/11/01 00:01 [medline] PHST- 1995/11/01 00:00 [entrez] AID - 10.1089/hum.1995.6.11-1379 [doi] PST - ppublish SO - Hum Gene Ther. 1995 Nov;6(11):1379-89. doi: 10.1089/hum.1995.6.11-1379.