Current Lab Members
Ambrose Cheung, MD
![](https://sites.dartmouth.edu/cheunglab/files/2021/04/Ambrose-Cheung.jpg)
Principal Investigator
Education:
Northwestern University Medical School, MD 1980
Colby College, BA 1976
Contact
E-mail: Ambrose.Cheung@Dartmouth.edu
Website: Geiselmed.dartmouth.edu
Adhar C. Manna, PhD
![](https://sites.dartmouth.edu/cheunglab/files/2021/04/Adhar-C-Manna-1-934x1024.jpg)
Research Scientist
Education:
Ph. D., Molecular Biology, Jawaharlal Nehru University, New Delhi, India
Research Interests:
Collaborate with laboratory team and external partners to study sRNAs mediated S. aureus post-transcriptional gene regulation, regulatory aspects of SarA family of proteins, and correlation in virulence processes.
Contact
E-mail: Adhar.C.Manna@dartmouth.edu E-mail: adh03@hotmail.com
Junho Cho, PhD
![](https://sites.dartmouth.edu/cheunglab/files/2021/04/JC_photo-256x300-1.jpg)
Post-Doctoral Research Fellow
Education:
PhD, Oklahoma State University
Research Interests:
Currently researching the Gra(X)RS two component system in Staphylococcus aureus.
Stephen Costa
![](https://sites.dartmouth.edu/cheunglab/files/2021/04/Stephen-Costa-e1618603180982.jpg)
Post-Doctoral Research Fellow
Education:
B.S. Biology, University of Massachusetts Dartmouth, Dartmouth
Ph.D., Dartmouth College
Research Interests:
I study the GraXRS-VraFG ‘five-component’ system in the skin commensal Staphylococcus epidermidis and how it imparts cationic antimicrobial peptide resistance. Providing higher resolution understanding of S. epidermidis may fundamentally alter how we manage or treat our skin health.
Contact
E-mail: Stephen.K.Costa.GR@dartmouth.edu
Liviu (Lance) Cengher
![](https://sites.dartmouth.edu/cheunglab/files/2021/04/Liviu-Lance-Cengher-1-857x1024.jpg)
Graduate Student
Education:
B.S. Microbiology, University of California, Santa Barbara
Research Interests:
Studying sRNA regulators in Staphyloccocus aureus, specifically RNA mediated regulation of virulence factors. Broad interests in microbiology, bacterial genetic engineering, and RNA biology.
Contact
E-mail: liviu.cengher.gr@dartmouth.edu
Twitter:@LanceLiviu
Richard Ejeh
![](https://sites.dartmouth.edu/cheunglab/files/2022/04/Richard-Ejeh_Professional-Headshot-Photo-682x1024.jpg)
Undergraduate
Education:
Pursuing B.A. Biology from Dartmouth College
Research Interests:
Drug development of potential anti-staphylococcal therapeutic molecule 111 that can be used to treat S. aureus and other gram positive infections. Other interests include host-pathogen interactions and musculoskeletal infections.
Lab Alumni
- Irina Mikheyeva-Bridges - Postdoctoral Fellow at Princeton
- Niles Donegan
- Dhanalakshmi Nair
- Ana Catalina Posada
- Kimberly A. Spotts
- Brian Bateman - Department of Anesthesia, Massachusetts General Hospital
- Manfred Bayer – Biotech company in Tuebingen
- Y. T. Chan - at Microbia (Biotech)
- Ursula Fluckiger - Associate Chief, Division of Infectious Diseases, University of Basel
- Bill Fu – Glaxo SmithKline
- Jon Heinrichs – Research Scientist at Merck
- Susham Ingavale – NIH scientist
- Todd Jarry - Biology Faculty at Woodberry Forest School
- Tammy Joska - Research Associate at Rutgers, The State University of New Jersey
- Barbara Kahl – Associate Professor, University of Muenster
- Nagender Ledala - Research Associate at the University of Nebraska
- Dongmei Li – Research Scientist at the Serum Institute at the University of Copenhagen
- Heping Lin - Research Biologist at Merck Research Laboratories
- Thea Lu - Doctoral candidate, University of Idaho, Moscow
- Michael Meehl – GlycoFi/Merck Pharmaceuticals
- Guido Memmi
- Koren Nishina – Scientist at Stanford University
- Marco Palma – Biotech company in Madrid, Spain
- Dindo Reyes
- Kathy Schmidt – Scientist at a Biotech company
- Sandeep Tamber – Scientist at Biotech in Montreal, Canada
- Pilar Trotonda – University scientist in Madrid, Spain
- Willem Van Wamel – Assistant Professor, University of Rotterdam
- Christian Wolz – Associate Professor, University of Tuebingen