targatt-ipsc

TARGATT™ iPSCs

Our TARGATT™ iPSC system provides a robust platform for cell line model creation and therapeutic cell product development with the ability to insert 20 kb+ of DNA and produce unlimited amounts of genetically uniform differentiated cells. Create cell lines that express large proteins or multiple genes in their native cell type to more faithfully capture physiological conditions.

TARGATT™ master iPSCs are pluripotent stem cells with a pre-engineered landing pad, attP site, in the H11 safe genomic locus ready for repeated, fast, and efficient gene knock-in by TARGATT™ integrase. The resulting gene edited iPSC can be differentiated to make unlimited, truly off-the-shelf cell products.

Why you should choose the TARGATT™, Master iPSC Line

Exceptional Efficiency: Our TARGATT™ Master iPSC line offers unparalleled efficiency in site-specific integration of transgenes, achieving higher efficiency compared to other technologies. This precision ensures reliable and consistent results in your research.
Site-Specific Integration: The master cell line features an “attP” integrase recognition landing pad in the well-defined, transcriptionally active H11 safe harbor locus. This targeted approach minimizes unintended effects and ensures robust expression of your transgene.
Large Cargo Insertion: TARGATT™ allows up to 20kb fragment insertion so multiple genes can be inserted in a single step.
Single Copy Integration: With single copy integration, you achieve a more controlled and predictable expression level of your transgene, avoiding the variability and genomic instability associated with multiple copy integrations.
Versatile Applications: This master iPSC line is a powerful tool for generating reporter knock-in lines, directed differentiation, and gene overexpression product development. Its precision and efficiency make it ideal for a wide range of applications in stem cell research and cell product development.

Achieve more than you thought possible with the TARGATT™ Master iPSC line

Products and Services

Catalog ID#	Service Name	Price
AST-1602	TARGATT™ Human Induced Pluripotent Stem Cell (hiPSC, Female) Knock-in Kit (H11)	Inquire
AST-9450	ActiCells™ GMP-Matching RUO TARGATT™ hiPSC Knock-in Kit	Inquire
AST-9480	ActiCells™ GMP TARGATT™ hiPSC Knock-in Kit	Inquire

Publications

TARGATT™ Master Cell Line

Chi, X., Zheng, Q., Jiang, R., Chen-Tsai, R. Y., & Kong, L. J. (2019). A system for site-specific integration of transgenes in mammalian cells. PLOS ONE, 14(7), e0219842.

Transgenic Mouse Book Chapters

Chen-Tsai, R. Y. (2020). Integrase-Mediated Targeted Transgenics Through Pronuclear Microinjection. In Transgenic Mouse (pp. 35-46). Humana, New York, NY.
Chen-Tsai, R. Y. (2019). Using TARGATT™ Technology to Generate Site-Specific Transgenic Mice. In Microinjection (pp. 71-86). Humana Press, New York, NY.

Description of the technology

Zhu, F., Gamboa, M., Farruggio, A. P., Hippenmeyer, S., Tasic, B., Schüle, B., … Calos, M. P. (2014). DICE, an efficient system for iterative genomic editing in human pluripotent stem cells. Nucleic Acids Research, 42(5), e34. http://doi.org/10.1093/nar/gkt1290.
Tasic, B., Hippenmeyer, S., Wang, C., Gamboa, M., Zong, H., Chen-Tsai, Y., & Luo, L. (2011). Site-specific integrase-mediated transgenesis in mice via pronuclear injection. Proceedings of the National Academy of Sciences of the United States of America, 108(19), 7902–7907. http://doi.org/10.1073/pnas.1019507108.

Commentary, comparison with other transgenic methods

Rossant, J., Nutter, L. M., & Gertsenstein, M. (2011). Engineering the embryo. Proceedings of the National Academy of Sciences, 108(19), 7659-7660.

Tet inducible mice generated by TARGATT™

Fan, X., Petitt, M., Gamboa, M., Huang, M., Dhal, S., Druzin, M. L., … Nayak, N. R. (2012). Transient, Inducible, Placenta-Specific Gene Expression in Mice. Endocrinology, 153(11), 5637–5644. http://doi.org/10.1210/en.2012-1556.

Advantage of Hipp11 (H11) locus

Hippenmeyer, S., Youn, Y. H., Moon, H. M., Miyamichi, K., Zong, H., Wynshaw-Boris, A., & Luo, L. (2010). Genetic Mosaic Dissection of Lis1 and Ndel1 in Neuronal Migration. Neuron, 68(4), 695–709. http://doi.org/10.1016/j.neuron.2010.09.027.

Applications for TARGATT™ technology

Lindtner, S., Catta-Preta, R., Tian, H., Su-Feher, L., Price, J. D., Dickel, D. E., … & Pennacchio, L. A. (2019). Genomic Resolution of DLX-Orchestrated Transcriptional Circuits Driving Development of Forebrain GABAergic Neurons. Cell reports, 28(8), 2048-2063.
Wang, T. A., Teo, C. F., Åkerblom, M., Chen, C., Tynan-La Fontaine, M., Greiner, V. J., … & Jan, L. Y. (2019). Thermoregulation via Temperature-Dependent PGD2 Production in Mouse Preoptic Area. Neuron, 103(2), 309-322.
Clarke, B. A., Majumder, S., Zhu, H., Lee, Y. T., Kono, M., Li, C., … & Byrnes, C. (2019). The Ormdl genes regulate the sphingolipid synthesis pathway to ensure proper myelination and neurologic function in mice. eLife, 8.
Carlson, H. L., & Stadler, H. S. (2019). Development and functional characterization of a lncRNA‐HIT conditional loss of function allele. genesis, e23351.
Chande, S., Ho, B., Fetene, J., & Bergwitz, C. (2019). Transgenic mouse model for conditional expression of influenza hemagglutinin-tagged human SLC20A1/PIT1. PloS one, 14(10), e0223052. doi:10.1371/journal.pone.0223052
Hu, Q., Ye, Y., Chan, L. C., Li, Y., Liang, K., Lin, A., … & Pan, Y. (2019). Oncogenic lncRNA downregulates cancer cell antigen presentation and intrinsic tumor suppression. Nature immunology, 1.
Matharu, N., Rattanasopha, S., Tamura, S., Maliskova, L., Wang, Y., Bernard, A., … & Ahituv, N. (2018). CRISPR-mediated activation of a promoter or enhancer rescues obesity caused by haploinsufficiency. Science, eaau0629.
Chen-Tsai, R. Y. (2019). Using TARGATT™ Technology to Generate Site-Specific Transgenic Mice. In Microinjection (pp. 71-86). Humana Press, New York, NY
Barrett, R. D., Laurent, S., Mallarino, R., Pfeifer, S. P., Xu, C. C., Foll, M., … & Hoekstra, H. E. (2018). The fitness consequences of genetic variation in wild populations of mice. bioRxiv, 383240.
Ibrahim, L. A., Huang, J. J., Wang, S. Z., Kim, Y. J., Li, I., & Huizhong, W. (2018). Sparse Labeling and Neural Tracing in Brain Circuits by STARS Strategy: Revealing Morphological Development of Type II Spiral Ganglion Neurons. Cerebral Cortex, 1-14.
Kumar, A., Dhar, S., Campanelli, G., Butt, N. A., Schallheim, J. M., Gomez, C. R., & Levenson, A. S. (2018). MTA 1 drives malignant progression and bone metastasis in prostate cancer. Molecular oncology.
Jang, Y., Broun, A., Wang, C., Park, Y. K., Zhuang, L., Lee, J. E., … & Ge, K. (2018). H3. 3K4M destabilizes enhancer H3K4 methyltransferases MLL3/MLL4 and impairs adipose tissue development. Nucleic acids research. https://doi.org/10.1093/nar/gky982
Tang, Y., Kwon, H., Neel, B. A., Kasher-Meron, M., Pessin, J., Yamada, E., & Pessin, J. E. (2018). The fructose-2, 6-bisphosphatase TIGAR suppresses NF-κB signaling by directly inhibiting the linear ubiquitin assembly complex LUBAC. Journal of Biological Chemistry, jbc-RA118.
Chen, M., Geoffroy, C. G., Meves, J. M., Narang, A., Li, Y., Nguyen, M. T., … & Elzière, L. (2018). Leucine Zipper-Bearing Kinase Is a Critical Regulator of Astrocyte Reactivity in the Adult Mammalian CNS. Cell Reports, 22(13), 3587-3597
Kido, T., Sun, Z., & Lau, Y.-F. C. (2017). Aberrant activation of the human sex-determining gene in early embryonic development results in postnatal growth retardation and lethality in mice. Scientific Reports, 7, 4113. http://doi.org/10.1038/s41598-017-04117-6.
Nouri, N., & Awatramani, R. (2017). A novel floor plate boundary defined by adjacent En1 and Dbx1 microdomains distinguishes midbrain dopamine and hypothalamic neurons. Development, 144(5), 916-927.
Li, K., Wang, F., Cao, W. B., Lv, X. X., Hua, F., Cui, B., … & Yu, J. M. (2017). TRIB3 Promotes APL Progression through Stabilization of the Oncoprotein PML-RARα and Inhibition of p53-Mediated Senescence. Cancer Cell, 31(5), 697-710.
Jiang, T., Kindt, K., & Wu, D. K. (2017). Transcription factor Emx2 controls stereociliary bundle orientation of sensory hair cells. eLife, 6, e23661.
Booze, M. L., Hansen, J. M., & Vitiello, P. F. (2016). A Novel Mouse Model for the Identification of Thioredoxin-1 Protein Interactions. Free Radical Biology & Medicine, 99, 533–543. http://doi.org/10.1016/j.freeradbiomed.2016.09.013.
Feng, D., Dai, S., Liu, F., Ohtake, Y., Zhou, Z., Wang, H., … & Hayat, U. (2016). Cre-inducible human CD59 mediates rapid cell ablation after intermedilysin administration. The Journal of clinical investigation, 126(6), 2321-2333.
Sun, N., Yun, J., Liu, J., Malide, D., Liu, C., Rovira, I. I., … Finkel, T. (2015). Measuring in vivo mitophagy. Molecular Cell, 60(4), 685–696. http://doi.org/10.1016/j.molcel.2015.10.009.
Devine, W. P., Wythe, J. D., George, M., Koshiba-Takeuchi, K., & Bruneau, B. G. (2014). Early patterning and specification of cardiac progenitors in gastrulating mesoderm. eLife, 3, e03848. http://doi.org/10.7554/eLife.03848.
Fogg, P. C. M., Colloms, S., Rosser, S., Stark, M., & Smith, M. C. M. (2014). New Applications for Phage Integrases. Journal of Molecular Biology, 426(15), 2703–2716. http://doi.org/10.1016/j.jmb.2014.05.014.
Chen-Tsai, R. Y., Jiang, R., Zhuang, L., Wu, J., Li, L., & Wu, J. (2014). Genome editing and animal models. Chinese science bulletin, 59(1), 1-6.
Park, K.-E., Park, C.-H., Powell, A., Martin, J., Donovan, D. M., & Telugu, B. P. (2016). Targeted Gene Knockin in Porcine Somatic Cells Using CRISPR/Cas Ribonucleoproteins. International Journal of Molecular Sciences, 17(6), 810. http://doi.org/10.3390/ijms17060810.
Guenther, C. A., Tasic, B., Luo, L., Bedell, M. A., & Kingsley, D. M. (2014). A molecular basis for classic blond hair color in Europeans. Nature Genetics, 46(7), 748–752. http://doi.org/10.1038/ng.2991.
Villamizar, C. A. (2014). Characterization of the vascular pathology in the acta2 r258c mouse model and cerebrovascular characterization of the acta2 null mouse. UT GSBS Dissertations and These (Open Access). Paper 508 (2014)