Tien Peng, MD

Principal Investigator

tien.peng@ucsf.edu

Tien grew up in Taiwan and Virginia. He trained in Baltimore, New York, and Philadelphia before moving to California. His favorite hiking trail is the Marin Headland Coastal Trail, but he mostly spends weekends driving his kids to sports activities.

N. Soledad Reyes de barboza, PhD

Postdoctoral Scholar

nabora.reyesdemochel@ucsf.edu

Soledad was born in Durango, Mexico and raised in California's central valley. She completed her PhD at UC Irvine investigating the function of BMP signaling and dynamic transcription factor gene expression in preimplantation mouse development. Her free time is divided between climbing, dancing salsa, and spending quality time with friends and family.

Jinyoung Lee, PhD

Postdoctoral Scholar

jinyoung.lee@ucsf.edu

Jinyoung was born in Seoul, Korea. She completed her PhD in Seoul National University, investigating senescence-induced change of immune responses in human mesenchymal stem cells. In her free time, she enjoys listening to music, watching movies and finding unique restaurants and cafes.

Nancy Allen, MD, PhD

Clinical Fellow

nancy.allen@ucsf.edu

Nancy grew up in San Francisco, California. She completed her MD and PhD at Yale University where she investigated the role of circadian clock genes in controlling heterogeneity of the immune response. She is currently a fellow in Pulmonary and Critical Care Medicine. In her free time her favorite activity is horseback riding.

Tsukasa Kadota, MD, PhD

Postdoctoral Scholar

tsukasa.kadota@ucsf.edu

Tsukasa was born in Tokyo, Japan. He completed his M.D. and Ph.D. at The Jikei University School of Medicine, investigating the role of extracellular vesicles in the pathogenesis of pulmonary fibrosis. In his free time, he jogs, does Karate, and spends a lot of time with his family.

Ritusree Biswas, PhD

Postdoctoral Scholar

ritusree.biswas@ucsf.edu

Ritusree grew up in Kolkata, India. She completed her Ph.D. at the Institute for Stem Cell Science and Regenerative Medicine, Bangalore, India. During her Ph.D., she investigated the mechanism of how skin stem cells are maintained in the quiescent state and what role mechanotransducers play as a niche factor in this process. Ritusree loves to travel, swim, play badminton, create artworks and dance.

Sang Ho Woo, PhD

Postdoctoral Scholar

sangho.woo@ucsf.edu

Sang Ho came from Seoul, South Korea. He completed his Ph.D. at Seoul National University. During his Ph.D., he investigated the role of vascular smooth muscle cells in atherosclerotic calcification and its underlying mechanisms. Outside the lab, Sang Ho enjoys running, playing tennis, and trying a new menu in San Francisco’s restaurant that he never had before.

Andrew Lechner, MD, PhD

Clinical Fellow

andrew.lechner@ucsf.edu

Andrew grew up in Saint Louis, Missouri, though has deep California roots. During his undergraduate time at UCLA, he fell in love with stem cells. He then completed his combined MD/PhD degree at UCSF where he studied the role of the immune system in lung regeneration. He is now a Pulmonary and Critical Care Medicine (PCCM) Fellow here and hopes to grow new lungs. He is a partner to Narges, a recent UCSF PCCM graduate, and father to 2 beautiful boys, Leo and Aria. He loves soccer, singing, sunshine and reading.

Christian Ringler

Staff Research Associate

christian.ringler@ucsf.edu

Christian grew up in Nairobi, Kenya. He completed his BA in Molecular and Cell Biology at UC Berkeley and conducted research at UCSF Cardiovascular Institute structured around the process of endothermy acquisition and the associated decrease in cardiomyocyte regeneration potential and renewal. Christian enjoys swimming, hiking, soccer, traveling, and oil painting.