Christopher L. Antos    Associate Professor, PI
Institute School of Life Science and Technology
Research Area Heart and Appendage Regeneration
Contact Info. clantos@@shanghaitech.edu.cn
 
  Biography  
Dr. Antos obtained his B.S. Degrees from Indiana University in Bloomington in 1993. He then went to Freiburg, Germany on a Fulbright Scholarship and worked in the Laboratory of Dr. Rolf Kemler at the Max-Planck Institute for Immunology. In 1996, Dr. Antos started his Ph.D work in the laboratory of Dr. Eric Olson at UT Southwestern Medical Center at Dallas. After finishing his PhD, he then completed his post-doctoral training in the laboratory of Dr. Christiane Nüsslein-Volhard at the Max-Planck Institute for Developmental Biology in Tübingen, Germany from 2003-2007. In 2008, Dr. Antos established his own laboratory as faculty at the DFG-Center for Regenerative Therapies Dresden of the Technische Universität Dresden. Dr. Antos joined ShanghaiTech University as an Associate Professor, PI in Dec. 2016 and has adjunct afflication with Institut für Pharmakologie und Toxikologie at the Technische Universität Dresden (https://tu-dresden.de/med/mf/pt/forschung/ag-antos).
  Research Interests  
The Antos group researches tissue regeneration. To understand the biology of regeneration, Dr. Antos is interested in answering three fundamental questions:
1. How are cells at the site of injury induced to regenerate lost tissues?
2. How are cells involved in regeneration controlled to produce the correct pattern?
3. What stops regeneration once the appropriate size is reached?

These questions are highly relevant to tissue bioengineering and to the stem cell biology of repair or reconstruction of human tissues. The Antos lab uses the zebrafish to answer these questions, because the zebrafish will regenerate many of its organs, including heart and appendages. Therefore, the lab can describe and dissect the cell and molecular mechanisms involved in the fish’s regeneration abilities and relate them to the limits on mammalian regeneration.

Appendage Regeneration:
Although the zebrafish fins have different architectures to the mammalian limbs, they contain almost all the same tissue types (bone, mesenchyme, joints, skin, melanocytes, etc.). These tissues just are arranged in a different pattern. Unlike mammalian limbs, after partial loss, the zebrafish fin will regenerate completely. Because the zebrafish can be researched with the current cell, genetic and molecular research tools, this regeneration model allows the Antos lab to assess the mechanisms involved in how to start, pattern and stop the stem and progenitor cells involved in regenerating appendages.

Heart Regeneration:
Healthy heart physiology requires coordinated Ca2+ handling across the syncytial cardiac muscle. While single-cell cardiomyocyte experiments in culture indicate how individual cardiomyocytes alter their Ca2+ subcellular distribution and handling properties, they are limited in addressing the syncytial nature of the cardiomyocytes in the heart in vivo. Thus, experimental dissection at the organ, cell and molecular levels are needed to understand how known and to-be-discovered mechanisms regulate cardiac physiology during heart regeneration in vivo. The Antos lab is therefore using all the current cell and molecular methods, including real-time in vivo zebrafish heart imaging, to address fundamental questions about cardiac injury, regeneration and function.
  Selected Publications  
1. Kolanowski TJ, Antos CL, Guan K. (2017) Making human cardiomyocytes up to date: Derivation, maturation state and perspectives. doi: 10.1007/s00210-017-1376-1. [Epub ahead of print]

2. Neef S, Heijman J, Otte K, Dewenter M, Saadatmand AR, Meyer-Roxlau S, Antos CL, Backs J, Dobrev D, Wagner M, Maier LS, El-Armouche A. (2017) Chronic loss of inhibitor-1 diminishes cardiac RyR2 phosphorylation despite exaggerated CaMKII activity. Naunyn Schmiedebergs Arch Pharmacol. doi: 10.1007/s00210-017-1376-1. [Epub ahead of print]

3. Antos CL, Knopf F & Brand M. (2015) Encyclopedia Article: “Regeneration of Organs and Appendages in Zebrafish: A Window into Underlying Cellular and Molecular Control Mechanisms”, Encyclopedia of Life Sciences, http://www.els.net/ 

4. Kujawski S, Lin W, Kitte F, Börmel M, Fuchs S, Arulmozhivarman G, Vogt S, Theil D, Zhang Y & Antos CL (2014) Calcineurin regulates coordinated outgrowth of zebrafish regenerating fins. Developmental Cell 28: 573-587 

5. Kizil C, Küchler B, Yan J-J, Özhan G, Moro E, Argenton F, Brand M, Weidinger G & Antos CL (2014) Simplet/Fam53b (Smp) is required for Wnt signal transduction by regulating β-catenin nuclear localization. Development 141: 3529-3539. 

6. Kizil C, Otto GW, Geisler R, Nüsslein-Volhard C & Antos CL, (2009) Simplet controls cell proliferation and gene transcription during zebrafish caudal fin regeneration. Dev. Biol. 325: 329-340. 

7. Antos CL, Lopez-Rodriguez C, Shelton JM, Richardson JA, Lin F, Novobrantseva TI, Bronson RT, Igarashi P, Rao A & Olson EN. (2004) Loss of NFAT5 results in renal atrophy and lack of tonicity-responsive gene expression Proc. Natl. Acad. Sci. U.S.A. 101: 2392-2397. 

8. Antos CL, McKinsey TA, Dreitz M, Hollingsworth LM, Zhang CL, Schreiber K, Rindt H & Olson EN. (2003) Dose-Dependent Blockade to Cardiomyocyte Hypertrophy by Histone Deacetylase Inhibitors J. Biol. Chem. 278: 28930-28937. 

9. Antos CL, McKinsey TA, Frey N, Kutschke W, McAnally J, Shelton JM, Richardson JA, Hill JA & Olson EN. (2002) Activated Glycogen Synthase [Kinase]-3β Suppresses Cardiac Hypertrophy in vivo. Proc. Natl. Acad. Sci. U.S.A. 99: 907-912. 

10. Antos CL, Frey N, Marx SO, Reiken S, Gaburjakova M, Richardson JA, Marks AR & Olson EN. (2001) Dilated Cardiomyopathy and Sudden Death Resulting from Constitutive Activation of Protein Kinase A. Circ. Res. 89: 997-1004. 

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