Meet the Principle Investigator
![Dr. Farrar smiling, with short cropped gray hair and beard, wearing a black pullover, standing in a lab.](/sites/default/files/styles/large/public/2023-07/David%20PIC%202.jpg?h=b6e7be0a&itok=SThP_DML)
Dr. David Farrar
"Experience is something you don't get until just after you need it." - Stephen Wright
Current Lab Members
Dr. Drashya Sharma
Dr. Sharma investigates the role of adrenergic signaling in regulating circadian rhythms in T cells. She is also the lab manager and overall flow cytometry guru.
![Dr. Drashya Sharma smiling, with long brown hair and brown rimmed glasses, wearing a pink shirt, standing in front of a window.](/sites/default/files/styles/coh_small_square/public/2023-07/Drashya.jpeg?h=dc87c2ba&itok=kjw-Z50A)
Juan Shugert Aguayo
Juan joined the lab in the Spring of 2024, and his project focuses on B cell responses to influenza infection.
![Juan Shugert](/sites/default/files/styles/coh_small_square/public/2024-05/Juan%20Shugert_0.jpg?h=d74fe132&itok=hIA50d2P)
![Cartoon of Waldo from the "Where's Waldo" cartoons.](/sites/default/files/styles/coh_small_square/public/2024-05/Waldo.jpg?h=85eca17e&itok=OoN8WRXc)
Lab Alumni
Dr. Didem Ağaç Çobanoğlu
Adrenergic regulation of IL-10 in innate cells
![Smiling young woman with long dark hair, outside with sunglasses on her head.](/sites/default/files/styles/coh_small_square/public/2023-07/Didem.jpg?h=ad2d3274&itok=3DRyaYoU)
Dr. Fenghong Chen
Interferon suppression of Th2 cells in allergic patients
![Smiling woman with short dark hair, wearing a dark sweater over a striped shirt, holding up two fingers in a "Peace" sign.](/sites/default/files/styles/coh_small_square/public/2023-07/Fenghong.jpg?h=7f76398d&itok=V8_YDy5b)
![Dr. Rowe smiling, with long dark hair, wearing a lab coat, with "Pediatrics Infectious Disease"](/sites/default/files/styles/coh_small_square/public/2023-07/Rowe-Regina-26292.jpg?h=d5fe8e31&itok=AJE8GENi)
Dr. Leonardo Estrada
Suppression of cytotoxic T cell function by adrenergic signaling
![Dr. Estrada, with trim dark hair, beard and mustache, standing in front of a bulletin board, wearing a dark gray suit jacket over a blue shirt.](/sites/default/files/styles/coh_small_square/public/2023-07/Leo.jpg?h=e2eecd2d&itok=rgJG5-7J)
Dr. Sarah Gonzales-van Horn
Suppression of Th2 cytokine gene expression by type I interferon
Dr. Fatema (Navin) Chowdhury
Regulation of human cytotoxic T cell development by IL-12
![Dr. Chowdhury, smiling, with shoulder-length dark hair, wearing a blue print dress, standing in front of a a bulletin board.](/sites/default/files/styles/coh_small_square/public/2023-07/Navin.jpg?h=390f4d83&itok=Ty2VQE4b)
Dr. Jonathan Huber
Type I interferon blocks human Th2 development
![Dr. Huber, smiling, wearing a dark jacket, outdoors with water and a city in the background.](/sites/default/files/styles/coh_small_square/public/2023-07/Jon.jpg?h=d2ecbc93&itok=kbW7gxwU)
Dr. Hilario Ramos
Divergent pathways of effector vs memory cell development
![Dr. Ramos, with dark hair and a trim beard and mustache, wearing a green striped shirt, sitting in front of a window covered with mini-blinds.](/sites/default/files/styles/coh_small_square/public/2023-07/Lalo.jpg?h=d197a569&itok=XrwehX4B)
![Dr. Davis, with medium-length blond hair wearing a green summer dress, sitting in an office.](/sites/default/files/styles/coh_small_square/public/2023-07/Ann%20Davis%202.jpg?h=f1fecc1d&itok=bFzzD5eF)