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Ai-Sun (Kelly) Tseng

Assistant Professor
School of Life Sciences
Office: SEB 3176
Phone: 702-895-2095
Fax: 702-895-3956


The regulation of animal size and shape is a longstanding and fundamental question in Biology. Although animals such as planaria and salamanders can fully regenerate their body parts after injury, humans lack this amazing ability. The Tseng lab is especially interested in studying how an animal senses physiologically that it has injured or lost body organs and how it responds to repair the damage. Understanding these processes have important implications for developing regenerative therapies for damaged tissues and aging. We pursue these studies using the powerful and well-characterized vertebrate model, the South African clawed frog, Xenopus laevis. Like humans, Xenopus tadpoles display age-dependent regenerative ability, making it an excellent system for identifying the still unknown mechanisms that underlie the differences between regenerative and non-regenerative responses to injury. Using interdisciplinary approaches (including molecular, chemical-genetic, physiological, and in vivo imaging tools), we seek to elucidate and integrate the biochemical and bioelectrical control of animal regeneration. In the long term, our goal is to build a blueprint for organ regeneration and to apply this knowledge towards developing novel therapeutics for regenerative medicine.


Regenerative Biology; Developmental Biology; Integrative Physiology


Ph.D. Harvard University


* denotes equal contribution

  • Tseng, A-S and Levin, M. (2012). Transducing Bioelectric Signals Into Epigenetic Pathways During Tadpole Tail Regeneration. Anat Rec., 295:1541-1551.
  • Beane, W. S., Tseng, A-S.*, Morokuma, J.*, Lemire, J.M., and Levin, M. (2012). Inhibition of Planar Cell Polarity Extends Neural Growth During Regeneration, Homeostasis and Development. Stem Cells and Development, 21(12): 2085-2094
  • Tseng, A-S.*, Carneiro, K.*, Lemire, J.M., and Levin, M. (2011). HDAC Activity is Required During Xenopus Tail Regeneration. PLoS ONE 6(10):e26382.doi:10.1371/journal.pone.0026382.
  • Tseng, A-S., Beane, W.S., Lemire, J.M., Masi, A., and Levin, M. (2010). Induction of Xenopus Tail Regeneration by a Transient Sodium Current. J Neurosci., 30(39):13192-13200.
    - featured as cover illustration and in This Week in the Journal article
    - highlighted in New York Times, Science News, and
  • Tseng, A-S., and Levin, M. (2008). Tail Regeneration in Xenopus laevis as a Model for Understanding Tissue Repair. J Dent Res. 87(9):806-816.
    - featured as cover illustration
  • Tseng, A-S., Adams, D.S., Qiu, D., Koustubhan, P., and Levin, M. (2007). Apoptosis is required during early tail regeneration in Xenopus laevis. Dev Biol. 301(1):62-9.
  • Tseng, A-S., Engel, F.E., and Keating, M.T. (2006). The GSK-3 Inhibitor BIO Promotes Proliferation in Mammalian Cardiomyocytes. Chem Biol. 13(9):957-63.

Additional Information

SEB Program Group: Integrative Physiology
SEB Lab Location: 3160
SEB Lab Phone Number: 702-895-2159