Lab Members

Our Staff

Photo of Astrid Haase

Astrid holds an MD degree from the University of Vienna (Austria) and a PhD from the University of Basel (Switzerland). During her time as a graduate student in Dr. Witek Filipowicz’ group, Astrid focused on microRNA(miRNA)-mediated gene silencing and discovered that TRBP is a protein partner of human Dicer. As a postdoctoral fellow with Dr. Greg Hannon at the Cold Spring Harbor Laboratory (CSHL), Astrid identified a novel nuclease -Zucchini/PLD6- that generates primary piRNAs in flies and mammals. In 2015, Astrid joined the NIDDK/NIH-IRP as a Stadtman Tenure-Track Investigator and achieved tenure in 2023. Together with a team of enthusiastic young scientists, she continues to investigate mechanisms of small RNA-based genome surveillance using a multidisciplinary approach.

Photo of Qingcai Meng
Qingcai Meng, Ph.D.
Postdoctoral Fellow (IRTA)

PhD - School of Life Science and Biotechnology, Shanghai Jiao Tong University

Qingcai’s graduate work focused on regulatory mechanisms that control floral organ development in rice. Her project focuses on mechanisms of nuclear RNA export in piRNA biology. Outside the lab, Qingcai likes to play and grow flowers.

Photo of Thenia Konstantinidou
Parthena (Thenia) Konstantinidou, Ph.D.
Postdoctoral Fellow

Ph.D. – NIH-GPP with the University of Patras (Greece)
MSc - University of Patras, Greece

Thenia studies the mechanisms of piRNA biogenesis and piRNA-mediated gene silencing in Drosophila ovaries. Outside the lab, she is a space enthusiast, fascinated by the mysteries of the universe. She also enjoys reading and outdoor activities with friends.

Photo of Zuzana Loubalova
Zuzana Loubalova, Ph.D.
Postdoctoral Fellow

Ph.D. – Charles University, Prague

During my graduate studies in Dr. Petr Svoboda’s lab, I investigated the biological importance of the piRNA pathway in the mammalian female germline. My current work studies the piRNA pathway from a genomics and mechanistic perspective. Outside the lab, I enjoy hiking in nature and good beer with friends.

Photo of Alex Friman
Aleksandr (Alex) Friman, M.Sc. M.Eng.
Graduate student

Graduate student, NIH graduate partnership with University of Maryland, College Park
M.Sc. in Bioinformatics from Johns Hopkins University

Alex develops computations tools used in the lab, provides data analysis and training for the team members. His research includes analysis of differences in piRNA biogenesis between fly and mouse. Outside of the lab Alex likes jogging, using Linux based computer systems and training his cat new commands.

Photo of Timothy O
Timothy O, B.Sc.
Postbaccalaureate student (IRTA)

Tim investigates the primary piRNA biogenesis pathway, specifically looking at the Zucchini endonuclease. He will be starting medical school in the fall of 2023. When he is not in lab, Tim enjoys exploring D.C. and watching the professional sports teams play.

Photo of Angel Jaimes
Angel Jaimes, B.Sc.
Postbaccalaureate student (IRTA)

B.Sc. - Kennesaw State University, GA

Angel is currently working on his undergraduate honors thesis on muscle gene activation in Drosophila, and will be joining the Haase-lab in summer 2023. He is interested to understand how the germline is faithfully specified and maintained across generations. To help investigate this exciting question, he will probe mechanisms of piRNA-mediated transposon silencing and piRNA inheritance in animal development. In his free time, Angel enjoys reading science fiction and nonfiction, taking care of his plants, and hiking to stargaze or to collect fun samples to examine under a microscope.

Photo of Franziska Ahrend
Franziska Ahrend, M.Sc.
ORISE student

M.Sc. – Troy University

Franziska is currently designing novel computing applications for the analysis of microRNA-mRNA interactions resulting from genetic variations for her master's thesis. She will be joining the Haase lab in the summer of 2023 to conduct large-scale sequencing data analysis to elucidate the silencing of transposons and regulation of gene expression by piRNAs. In her free time, she enjoys being outdoors and playing tennis.

Our Alumni

Adrianna Hernandez
Postbac. IRTA (2021-2023, shared with NCI/CCR); Medical School
Photo of Dan Stoyko
Daniel (Dan) Stoyko
Postbac. IRTA (2019-2022); PhD student, MIT

BSc – Stockton University, New Jersey

Dan investigates patterns of piRNA populations in flies and mice. In his free time, he enjoys running and being outdoors. Dan is currently a PhD student at the Massachusetts Institute of Technology (MIT).

Photo of Pavol Genzor
Pavol Genzor, Ph.D.
Research Fellow (Postdoc. VF 2015-2020, RF 2020-2022); Sr. Computational Biologist at the Henry M. Jackson Foundation for the Advancement of Military Medicine

PhD – Johns Hopkins University, Baltimore MD

As a graduate student in Dr. Alex Bortvin’s lab at the Carnegie Institute for Science, Pavol studied the function of the RNA binding protein Maelstrom (MAEL) in transposon restriction in the male germline of mice. As a postdoc in the Haase-lab, Pavol combined his computational and molecular expertise to elucidate mechanisms of piRNA biogenesis and function. He is now a Sr. Computational Biologist at the Henry M. Jackson Foundation for the Advancement of Military Medicine.

Photo of Celine Marlin Andrews
Celine Marlin Andrews
Postbac. IRTA (2018-2020); Med. student, Virginia Tech Carilion
Sanga Mitra, Ph.D.
Postdoctoral VF (2016-2019); S.R.F at India Assoc. for Science
Prisma Lopez
Postbac. IRTA (2016-2017); Researcher at Tufts Medical Center
Leif Benner
Rotation student (05-08 2017); PhD student, JHU/NIH
Alexandra Elchert
Postbac. IRTA (2017-2019); PhD student, Harvard Medical School
Sushi Sobti
Postbac. IRTA (2016-2018); PhD student, UCSF
Neha Bokil
Postbac. IRTA (2016-2017); PhD student, MIT
Seth Cordts
Postbac. IRTA (2015-2016); PhD student, Stanford
Chad Stein
Postbac. IRTA (2015-2017); PhD student, Harvard Medical School
Soyeon Showman
Postbac. IRTA (2015-2016); PhD student, U. of Washington

Group Photos

Thenia’s Graduation 2023

Thenia Konstantinidou’s graduation 2023 Thenia Konstantinidou’s graduation 2023 Thenia Konstantinidou’s graduation 2023

Lab Pictures 2022

Haase Lab Members 2022Haase Lab Members 2022 Haase Lab 2022Haase Lab 2022

Lab Pictures 2020

Group photo of the RNA Biology Section members Haase Lab Members 2020 Group photo of the RNA Biology Section members Haase Lab Members 2020

Lab Picture 2019

from left to right: Pavol Genzor, Amir Manzour (NIAMS collaborator), Astrid Haase, Allie Elchert, Celine Marlin Andrews, Thenia Konstantinidou. from left to right: Pavol Genzor, Amir Manzour (NIAMS collaborator), Astrid Haase, Allie Elchert, Celine Marlin Andrews, Thenia Konstantinidou.

Lab Picture 2017

Haase lab 2017 from left to right: Prisma Lopez, Allie Elchert, Neha Bokil, Astrid Haase, Pavol Genzor, Seth Cordts, Chad Stein
Last Reviewed March 2023