Current Members


Stewart Barnes
Laboratory Administrator

Postdoctoral Fellows and Associates



Nazario Bosco

Ph.D. University of Rome/Sapienza
Thesis: Common fragile sites: structure, replication and their role in chromosome instability
Advisor: Franca Pelliccia

Postdoctoral Fellowships:
American-Italian Cancer Foundation 2011-2012

Research Interests:
The role of TRF1 is mediating telomere replication.

Nazario's Publications



Sally Dewhurst

Ph.D. London Research Institute
Advisor: Charles Swanton

Research Interests:

Sally's Publications




Yi Gong
Research Associate

PhD UT Southwestern Medical Center at Dallas, 2006

Thesis: Mechanistic dissection of Insig-1, a master regulator of cholesterol homeostasis.
Advisors: Dr. Michael Brown and Dr. Joseph Goldstein

Postdoctoral Fellowships:
Anderson Cancer Center Postdoctoral Fellowship 2007-2009

Research interests:
DNA damage response.

Yi's Publications



Tatsuya Kibe
Research Associate

PhD: Shizuoka University, 2007

Thesis: The novel role of fission yeast RPA in telomere maintenance.
Advisor: Dr. Masaru M UenoS, Shizuoka University, 2004

Research Interests:
DNA damage and the relationship between telomere structure and cell cycle.

Postdoctoral Fellewships/Awards:
Research Fellow of Japan Society for the Promotion of Science 2006
Toyobo Biotechnology Foundation Fellowship 2008

Tatsuya's Publications



Katja Kratz


PhD: ETH Zurich, 2010

Thesis: Biochemical characterization of KIAA1018/FAN1, a novel endonuclease involved in interstrand cross-link repair
Advisor: Dr. Josef Jiricny

Postdoctoral Fellowships:
EMBO Long-Term Fellowship 2012-2013
Women & Science Fellowship 2013-2014

Research Interests:
Mechanistic insights into repression of ATR signaling at telomeres by shelterin.

Katja's Publications



Francisca Alessandra Lottersberger
Research Associate

PhD: University of Milano-Bicocca, 2008
Thesis: Functions of Saccharomyces cerevisiae 14-3-3 proteins in cell cycle regulation and DNA metabolism
Advisor: Dr. Maria PIa Longhese

Postdoctoral Fellowships:
Women & Science Fellowship 2008-2009

Research Interests:
Identification of new factors involved in DNA damage response and telomere maintenance.

Francisca's Publications



Courtney Lovejoy
Research Associate

Ph.D. Vanderbilt University Nashville, TN, 2009
Thesis: Replication Dependent Mechanisms of Genome Maintenance
Advisor: Dr. David Cortez

Postdoctoral Fellowships:
Anderson Cancer Center Postdoctoral Fellowship 2010-2011
Department of Defense Breast Cancer Research Foundation 2011-2014

Research Interests:
Telomeric inhibition of DNA damage response signaling.

Courtney's Publications



John Maciejowski


Ph.D. Memorial Sloan-Kettering Cancer Center, 2013
Thesis: Chemical genetics reveals novel Mps1 functions and identifies substrates in mitosis
Advisor: Prasad V. Jallepalli

Research Interests:
How telomeres maintain genome stability.

John's Publications



Isabelle Schmutz


Ph.D. University of Fribourg, Switzerland, 2010
Thesis: Molecular functions of the mammalian clock component PERIOD2
Advisor: Urs Albrecht

Postdoctoral Fellowships:
Swiss National Science Foundation Fellowship, 2011-2012

Research Interests:
Regulation of PARP1 activity at telomeres.

Isabelle's Publications



Hiro Takai
Research Assistant Professor

PhD: The University of Tokyo Graduate School of Science, 1995

Thesis: Studies on the regulatory mechanisms for the initiation of sperm motility in marine and freshwater teleosts.
Advisor: Dr. Masaaki Morisawa

Research interests:
Regulation of PIKKs by Tel2

Post Doctoral Fellowships/Awards:
Charles H. Revson Fellowship 2002-2003

Hiro's Publications


Graduate Students


Leonid Timashev
Graduate Fellow

BSc in Biological Sciences, Cornell University, 2004

Leonid's Publications



Roos Anna Karssemeijer
Graduate Fellow

BSc in Biomedical Sciences, University of Amsterdam, The Netherlands 2008
MSc in Immunity and Infection, Utrecht University, The Netherlands 2010

Research Interests:
Characterizing the role of 53BP1 in the DNA damage response at telomeres

Women and Science graduate fellow 2011-2012
Helmsley Graduate Fellow 2012-2013
Boehringer Ingelheim PhD Fellowship 2013-2015

Roos' Publications



Zhe Yang 
Graduate Fellow


Bcc in Life Sciences, National University of Singapore, Singapore, 2015

Research Interests:


Zhe's Publications


Research Assistants


Adriana Garzon
Lab Manager


M.A., City College of New York, 2008
M.S., Universidad de los Andes, 2001



Rosaura Mejia
Lab Helper



Kaori Takai
Research Assistant


M.S., Hunter College of the City University of New York, 2006

Kaori's Publications



Devon White
Animal Technician II



Stewart Barnes Laboratory Administrator Stewart.Barnes@rockefeller.eduPostdoctoral Fellows and Associates  Nazario Bosco Postdoc Nazario.Bosco@rockefeller.eduPh.D. Universit