Abstract
Targeted gene repair uses short DNA oligonucleotides to direct a nucleotide exchange reaction at a designated site in a mammalian chromosome. The widespread use of this technique has been hampered by the inability of workers to achieve robust levels of correction. Here, we present a mammalian cell system in which DLD-1 cells bearing integrated copies of a mutant eGFP gene are repaired by modified single-stranded DNA oligonucleotides. We demonstrate that two independent clonal isolates, which are transcribed at different levels, are corrected at different frequencies. We confirm the evidence of a strand bias observed previously in other systems, wherein an oligonucleotide designed to be complementary to the nontranscribed strand of the target directs a higher level of repair than one targeting the transcribed strand. Higher concentrations of cell oligonucleotides in the electroporation mixture lead to higher levels of correction. When the target cell population is synchronized into S phase then released before electroporation, the correction efficiency is increased within the entire population. This model system could be useful for pharmacogenomic applications of targeted gene repair including the creation of cell lines containing single-base alterations.
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References
Kmiec, E. B. (1999) Targeted gene repair. Gene Ther. 6, 1–3.
Liu, L., Parekh-Olmedo, H., and Kmiec, E. B. (2003) The development and regulation of gene repair. Nat. Rev. Genet. 4, 679–689.
Igoucheva, O., Alexeev, V., Pryce, M., and Yoon, K. (2003) Transcription affects formation and processing of intermediates in oligonucleotide-mediated gene alteration. Nucleic Acids Res. 31, 2659–2670.
Dekker, M., Brouwers, C., and Te, R. H. (2003) Targeted gene modification in mismatch-repair-deficient embryonic stem cells by single-stranded DNA oligonucleotides. Nucleic Acids Res. 31, E27.
Goncz, K. K., Kunzelmann, K., Xu, Z., and Gruenert, D. C. (1998) Targeted replacement of normal and mutant CFTR sequences in human airway epithelial cells using DNA fragments. Hum. Mol. Genet. 7, 1913–1919.
Goncz, K. K., Colosimo, A., Dallapiccola, B., Gagne, L., Hong, K., Novelli, G., et al. Expression of DeltaF508 CFTR in normal mouse lung after site-specific modification of CFTR sequences by SFHR. Gene Ther. 8, 961–965.
Andersen, M. S., Sorensen, C. B., Bolund, L., and Jensen, T. G. (2002) Mechanisms underlying targeted gene correction using chimeric RNA/DNA and single-stranded DNA oligonucleotides. J. Mol. Med. 80, 770–781.
Rice, M. C., Bruner, M., Czymmek, K., and Kmiec, E. B. (2001) In vitro and in vivo nucleotide exchange directed by chimeric RNA/DNA oligonucleotides in Saccharomyces cerevisae. Mol. Microbiol. 40, 857–868.
Liu, L., Cheng, S., van Brabant, A. J., and Kmiec, E. B. (2002) Rad51p and Rad54p, but not Rad52p, elevate gene repair in Saccharomyces cerevisiae directed by modified single-stranded oligonucleotide vectors. Nucleic Acids Res. 30, 2742–2750.
Rice, M. C., Czymmek, K., and Kmiec, E. B. The potential of nucleic acid repair in functional genomics. Nat. Biotechnol. 19, 321–326.
Brachman, E. E. and Kmiec, E. B. (2003) Targeted gene repair of cyc1 mutations in Saccharomyces cerevisiae directed by modified single-stranded DNA oligonucleotides. Genetics 163, 527–538.
Cole-Strauss, A., Gamper, H., Holloman, W. K., Munoz, M., Cheng, N., and Kmiec, E. B. (1999) Targeted gene repair directed by the chimeric RNA/DNA oligonucleotide in a mammalian cell-free extract. Nucleic Acids Res. 27, 1323–1330.
Kren, B. T., Wong, P. Y., and Steer, C. J. (2003) Short, single-stranded oligonucleotides mediate targeted nucleotide conversion using extracts from isolated liver mitochondria. DNA Repair (Amst) 2, 531–546.
Gamper, H. B., Parekh, H., Rice, M. C., Bruner, M., Youkey, H., and Kmiec, E. B. (2000) The DNA strand of chimeric RNA/DNA oligonucleotides can direct gene repair/conversion activity in mammalian and plant cell-free extracts. Nucleic Acids Res. 28, 4332–4339.
Parekh-Olmedo, H., Drury, M., and Kmiec, E. B. (2002) Targeted nucleotide exchange in Saccharomyces cerevisiae directed by short oligonucleotides containing locked nucleic acids. Chem. Biol. 9, 1073–1084.
Drury, M. D. and Kmiec, E. B. (2003) DNA pairing is an important step in the process of targeted nucleotide exchange. Nucleic Acids Res. 31, 899–910.
Liu, L., Rice, M. C., and Kmiec, E. B. (2001) In vivo gene repair of point and frameshift mutations directed by chimeric RNA/DNA oligonucleotides and modified single-stranded oligonucleotides. Nucleic Acids Res. 29, 4238–4250.
Nickerson, H. D. and Colledge, W. H. (2003) A comparison of gene repair strategies in cell culture using a lacZ reporter system. Gene Ther. 10, 1584–1591.
Liu, L., Rice, M. C., Drury, M., Cheng, S., Gamper, H., and Kmiec, E. B. (2002) Strand bias in targeted gene repair is influenced by transcriptional activity. Mol. Cell Biol. 22, 3852–3863.
van der Steege, G., Schuilenga-Hut, P. H., Buys, C. H., Scheffer, H., Pas, H. H., and Jonkman, M. F. (2001) Persistent failures in gene repair. Nat. Biotechnol. 19, 305–306.
Vasquez, K. M., Marburger, K., Intody, Z., and Wilson, J. H. (2001) Manipulating the mammalian genome by homologous recombination. Proc. Natl. Acad. Sci. USA 98, 8403–8410.
Zheng, H. and Wilson, J. H. (1990) Gene targeting in normal and amplified cell lines. Nature 344, 170–173.
Majumdar, A., Puri, N., Cuenoud, B., Natt, F., Martin, P., Khorlin, A., et al. (2003) Cell cycle modulation of gene targeting by a triple helix-forming oligonucleotide. J. Biol. Chem. 278, 11,072–11,077.
Orren, D. K., Petersen, L. N., and Bohr, V. A. (1995) A UV-responsive G2 checkpoint in rodent cells. Mol. Cell Biol. 15, 3722–3730.
Liu, X. M., Yan, Z., Luo, M., Zak, R., Driskell, R., Li, Z., et al. (2003) Targeted correction of genomic single base-pair mutations using adeno-associated virus under non-selective conditions. Simultaneous Oral Abstract Sessions. Molecular Therapy 7, S159-S160.
Bandyopadhyay, P., Kren, B. T., Ma, X., and Steer, C. J. (1998) Enhanced gene transfer into HuH-7 cells and primary rat hepatocytes using targeted liposomes and polyethylenimine. Biotechniques 25, 282–292.
Thorpe, P., Stevenson, B. J., and Porteous, D. J. (2002) Optimising gene repair strategies in cell culture. Gene Ther. 9, 700–702.
Banks, G. A., Roselli, R. J., Chen, R., and Giorgio, T. D. (2003) A model for the analysis of nonviral gene therapy. Gene Ther. 10, 1766–1775.
Solinger, J. A., Kiianitsa, K., and Heyer, W. D. (2002) Rad54, a Swi2/Snf2-like recombinational repair protein, disassembles Rad51:dsDNA filaments. Mol. Cell 10, 1175–1188.
Maguire, K. and Kmiec, E. B. (2003) Enhancement of in vivo targeted nucleotide exchange by nonspecific carrier DNA. In: Genetic Recombination Reviews and Protocols (Walman, A. S., ed.), Humana, Totowa, pp. 209–220.
Igoucheva, O., Alexeev, V., and Yoon, K. (2001) Targeted gene correction by small single-stranded oligonucleotides in mammalian cells. Gene Ther. 8, 391–399.
Ellis, H. M., Yu, D., DiTizio, T., and Court, D. L. (2001) High efficiency mutagenesis, repair, and engineering of chromosomal DNA using single-stranded oligonucleotides. Proc. Natl. Acad. Sci. USA 98, 6742–6746.
Brachman, E. E. and Kmiec, E. B. (2004) DNA replication and transcription direct a DNA strand bias in the process of targeted gene repair in mammalian cells. J. Cell Sci. 117, 3867–3874.
Parekh-Olmedo, H., Engstrom, J., and Kmiec, E. B. (2003) The effect of hydroxyurea and trichostatin A on targeted nucleotide exchange in yeast and mammalian cells. Ann. NY Acad. Sci. 1002, 43–56.
Yoshida, M., Kijima, M., Akita, M., and Beppu, T. (1990) Potent and specific inhibition of mammalian histone deacetylase both in vivo and in vitro by trichostatin A. J. Biol. Chem. 265, 17,174–17,179.
Santana, E., Peritz, A. E., Iyer, S., Uitto, J., and Yoon, K. (1998) Different frequency of gene targeting events by the RNA-DNA oligonucleotide among epithelial cells. J. Invest Dermatol. 111, 1172–1177.
Leith, J. T., Heyman, P., DeWyngaert, J. K., Dexter, D. L., Calabresi, P., and Glicksman, A. S. (1983) Thermal survival characteristics of cell subpopulations isolated from a heterogeneous human colon tumor. Cancer Res. 43, 3240–3246.
Leith, J. T., Dexter, D. L., DeWyngaert, J. K., Zeman, E. M., Chu, M. Y., Calabresi, P., and Glicksman, A. S. (1982) Differential responses to x-irradiation of subpopulations of two heterogeneous human carcinomas in vitro. Cancer Res. 42, 2556–2561.
Dexter, D. L., Spremulli, E. N., Fligiel, Z., Barbosa, J. A., Vogel, R., VanVoorhees, A., and Calabresi, P. (1981) Heterogeneity of cancer cells from a single human colon carcinoma. Am. J. Med. 71, 949–956.
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Hu, Y., Parekh-Olmedo, H., Drury, M. et al. Reaction parameters of targeted gene repair in mammalian cells. Mol Biotechnol 29, 197–210 (2005). https://doi.org/10.1385/MB:29:3:197
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DOI: https://doi.org/10.1385/MB:29:3:197