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Fengling Liu, PhD


Dr. Fengling Liu brings over 10 years of industry experience developing multiple biologics. Since 2010 she served as the Protein Biochemistry lead or group lead of Protein Science in multiple biotechs in the bay area including Medimmune (AstraZeneca), Relypsa, Atreca and Arcus Biosciences.

Her protein science-focused research spanned target identification/confirmation, lead optimization, protein purification and engineering to support vaccine development, small molecule and antibody drug discovery in infectious disease and Immuno-Oncology. She was trained in Biochemistry and Structure Biology during her PhD at Georgia State University. She studied the molecular basis of HIV protease drug resistance through enzyme kinetics and X-ray crystal structures.  She solved over a dozen super high resolution crystal structures of HIV/drug complexes and discovered a novel drug resistance mechanism.

During her postdoc in the lab of Professor Ted Jardetzky in the Structural Biology Department at Stanford Medical School, Dr. Liu studied human viral glycoprotein interactions to discover viral entry inhibitors.

Besides her passion for science and technology, Fengling also enjoys gardening and hiking with family and friends.

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Wei (Vivian) Guo

Wei (Vivian) Guo brings over 20 years of biopharmaceutical industry experience focused on protein chemistry and therapeutic antibody development to her role as Senior Scientist of Protein Science at Juvena Therapeutics. 

She has broad and deep experience in protein and antibody expression, purification, and analytical characterization. She is also an expert in antibody generation including antigen design, protein conjugation, bispecific antibody generation and drug conjugation. She has extensive cross functional experience in molecular biology, cell culture and assay development, as well as deep trouble-shoot skills.

She received her medical college degree from Hunan Medical University in China.

Vivian loves nature, like walking, hiking, traveling and ping-pong.

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Sarah Tang


Sarah joined Juvena Therapeutics as a Senior Research Associate to contribute to Dr. Fengling Liu’s research on protein expression and purification. She obtained her bachelor’s degree in molecular and cell biology from the University of California, Berkeley.

Before joining Juvena Therapeutics, Sarah worked as a Research Associate in the antibody discovery field, where she attained hybridoma sequences, antibody transient expression, and hit identification. Prior to transitioning to research, Sarah worked in the clinical diagnostics field as a Lab Administrative Manager. She managed lab operations while staying active on the bench.

In Sarah’s free time, she enjoys creating content for her cat’s social media, gaming with friends, and attending ballet performances.


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