PMID- 17052738 OWN - NLM STAT- MEDLINE DCOM- 20070403 LR - 20091119 IS - 0042-6822 (Print) IS - 0042-6822 (Linking) VI - 359 IP - 1 DP - 2007 Mar 1 TI - T cell line passage can select for pre-existing neutralization-sensitive variants from the quasispecies of primary human immunodeficiency virus type-1 isolates. PG - 92-104 AB - Primary human immunodeficiency type 1 viruses (HIV-1) resist antibody neutralization but become sensitive after passage through T cell lines. We and others previously reported an increased neutralization sensitivity of HIV-1 after prolonged culture on primary peripheral blood mononuclear cells (PBMC). Hence we hypothesized that adaptation to growth in T cell lines is in fact selection of a pre-existing neutralization-sensitive HIV-1 variant from the quasispecies in the PBMC culture. Indeed, increased neutralization sensitivity was associated with largely identical synonymous and non-synonymous mutations between progeny of parallel H9 passages from the same split inoculum from 2 of 3 viruses. H9 T cell line adaptation of molecular cloned HIV-1 was less successful and associated with only a few de novo mutations that varied between parallel H9-adapted progeny from the same split inoculum. We conclude that T cell line adaptation of HIV-1 can indeed select for a pre-existing variant but that this most likely depends on the viral diversity in the inoculum. FAU - Quakkelaar, Esther D AU - Quakkelaar ED AD - Department of Clinical Viro-Immunology, Sanquin Research and Landsteiner Laboratory of the Academic Medical Center, Center for Infection and Immunity Amsterdam, University of Amsterdam, Amsterdam, The Netherlands. e.quakkelaar@sanquin.nl FAU - Beaumont, Tim AU - Beaumont T FAU - van Nuenen, Ad C AU - van Nuenen AC FAU - van Alphen, Floris P J AU - van Alphen FP FAU - Boeser-Nunnink, Brigitte D M AU - Boeser-Nunnink BD FAU - van 't Wout, Angelique B AU - van 't Wout AB FAU - Schuitemaker, Hanneke AU - Schuitemaker H LA - eng SI - GENBANK/EF028243 SI - GENBANK/EF028244 SI - GENBANK/EF028245 SI - GENBANK/EF028246 SI - GENBANK/EF028247 SI - GENBANK/EF028248 SI - GENBANK/EF028249 SI - GENBANK/EF028250 SI - GENBANK/EF028251 SI - GENBANK/EF028252 SI - GENBANK/EF028253 SI - GENBANK/EF028254 SI - GENBANK/EF028255 SI - GENBANK/EF028256 SI - GENBANK/EF028257 SI - GENBANK/EF028258 SI - GENBANK/EF028259 SI - GENBANK/EF028260 SI - GENBANK/EF028261 SI - GENBANK/EF028262 SI - GENBANK/EF028263 SI - GENBANK/EF028264 SI - GENBANK/EF028265 SI - GENBANK/EF028266 SI - GENBANK/EF028267 SI - GENBANK/EF028268 SI - GENBANK/EF028269 SI - GENBANK/EF028270 SI - GENBANK/EF028271 SI - GENBANK/EF028272 PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20061018 PL - United States TA - Virology JT - Virology JID - 0110674 RN - 0 (HIV Antibodies) RN - 0 (RNA, Viral) SB - IM MH - Adaptation, Physiological MH - Amino Acid Sequence MH - Base Sequence MH - Cell Line MH - Genetic Variation MH - HIV Antibodies/*immunology MH - HIV-1/*genetics/growth & development/*immunology/isolation & purification MH - Humans MH - Molecular Sequence Data MH - Mutation MH - Neutralization Tests MH - Phylogeny MH - Proviruses/genetics MH - RNA, Viral/genetics MH - *Selection, Genetic MH - Sequence Alignment MH - T-Lymphocytes/*virology EDAT- 2006/10/21 09:00 MHDA- 2007/04/04 09:00 CRDT- 2006/10/21 09:00 PHST- 2006/06/29 00:00 [received] PHST- 2006/08/01 00:00 [revised] PHST- 2006/09/18 00:00 [accepted] PHST- 2006/10/21 09:00 [pubmed] PHST- 2007/04/04 09:00 [medline] PHST- 2006/10/21 09:00 [entrez] AID - S0042-6822(06)00676-3 [pii] AID - 10.1016/j.virol.2006.09.021 [doi] PST - ppublish SO - Virology. 2007 Mar 1;359(1):92-104. doi: 10.1016/j.virol.2006.09.021. Epub 2006 Oct 18.