Bio

Honors & Awards


  • Ruth L. Kirschstein National Research Service Award (F31), National Institutes of Health, NIAID (2/15)
  • NSF Graduate Fellowship Program, National Science Foundation (4/11)
  • The Centennial Teaching Award, Program in Human Biology, Stanford University (5/10)
  • Deans' Award for Academic Accomplishment, Stanford University (3/09)
  • Firestone Medal for Excellence in Undergraduate Research, Stanford University (6/09)
  • Kirsten Frohnmayer Research Prize, Program in Human Biology, Stanford University (6/08)
  • 1st Place and Best in Category, Botany Division, Intel International Science and Engineering Fair (4/04)

Education & Certifications


  • Bachelor of Arts, Stanford University, HUMBI-BAH (2009)

Stanford Advisors


Research & Scholarship

Lab Affiliations


Professional

Work Experience


  • Course Associate, Program in Human Biology, Stanford University (9/1/2009 - 5/1/2010)

    Taught biological science on a full time basis to over 250 Stanford undergraduates in the Human Biology core course series. Course topics included genetics, molecular biology, evolution, ecology, cellular biology, developmental biology, organismal biology, and human physiology. Designed and taught five sections per week in addition to holding regular office hours. Wrote problem sets, produced teaching materials, and held exam review sessions. Composed exams and assessed student work.

    Location

    Stanford, California

  • Analyst Intern, The Center for Biosecurity, University of Pittsburgh Medical Center (June 2009 - September 2009)

    Conducted biosecurity policy research during paid summer internship. Analyzed H1N1 influenza pandemic data, reviewed influenza vaccine production process, and participated in international conference on Synthetic Biology at the National Academies of Science in Washington, D.C.

    Location

    Baltimore, Maryland

  • Admissions Associate, Stanford University (August 2008 - June 2009)

    Addressed admissions policy and financial aid queries by phone, email, and handled drop-in visitors as public relations agent. Presented weekly, hour-long “Discover Stanford” informational sessions to large groups (125+) of visiting prospective students and their families.

    Location

    Stanford, California

Publications

Journal Articles


  • Kinetic pathway of 40S ribosomal subunit recruitment to hepatitis C virus internal ribosome entry site. Proceedings of the National Academy of Sciences of the United States of America Fuchs, G., Petrov, A. N., Marceau, C. D., Popov, L. M., Chen, J., O'Leary, S. E., Wang, R., Carette, J. E., Sarnow, P., Puglisi, J. D. 2015; 112 (2): 319-325

    Abstract

    Translation initiation can occur by multiple pathways. To delineate these pathways by single-molecule methods, fluorescently labeled ribosomal subunits are required. Here, we labeled human 40S ribosomal subunits with a fluorescent SNAP-tag at ribosomal protein eS25 (RPS25). The resulting ribosomal subunits could be specifically labeled in living cells and in vitro. Using single-molecule Förster resonance energy transfer (FRET) between RPS25 and domain II of the hepatitis C virus (HCV) internal ribosome entry site (IRES), we measured the rates of 40S subunit arrival to the HCV IRES. Our data support a single-step model of HCV IRES recruitment to 40S subunits, irreversible on the initiation time scale. We furthermore demonstrated that after binding, the 40S:HCV IRES complex is conformationally dynamic, undergoing slow large-scale rearrangements. Addition of translation extracts suppresses these fluctuations, funneling the complex into a single conformation on the 80S assembly pathway. These findings show that 40S:HCV IRES complex formation is accompanied by dynamic conformational rearrangements that may be modulated by initiation factors.

    View details for DOI 10.1073/pnas.1421328111

    View details for PubMedID 25516984

  • Three-Dimensional Human Skin Models to Understand Staphylococcus aureus Skin Colonization and Infection. Frontiers in immunology Popov, L., Kovalski, J., Grandi, G., Bagnoli, F., Amieva, M. R. 2014; 5: 41-?

    Abstract

    Staphylococcus aureus is both a major bacterial pathogen as well as a common member of the human skin microbiota. Due to its widespread prevalence as an asymptomatic skin colonizer and its importance as a source of skin and soft tissue infections, an improved understanding of how S. aureus attaches to, grows within, and breaches the stratified layers of the epidermis is of critical importance. Three-dimensional organotypic human skin culture models are informative and tractable experimental systems for future investigations of the interactions between S. aureus and the multi-faceted skin tissue. We propose that S. aureus virulence factors, primarily appreciated for their role in pathogenesis of invasive infections, play alternative roles in promoting asymptomatic bacterial growth within the skin. Experimental manipulations of these cultures will provide insight into the many poorly understood molecular interactions occurring at the interface between S. aureus and stratified human skin tissue.

    View details for DOI 10.3389/fimmu.2014.00041

    View details for PubMedID 24567733

  • Interferon-? Therapy Prolongs Survival in Rhesus Macaque Models of Ebola and Marburg Hemorrhagic Fever. The Journal of infectious diseases Smith, L. M., Hensley, L. E., Geisbert, T. W., Johnson, J., Stossel, A., Honko, A., Yen, J. Y., Geisbert, J., Paragas, J., Fritz, E., Olinger, G., Young, H. A., Rubins, K. H., Karp, C. L. 2013

    Abstract

    There is a clear need for novel, effective therapeutic approaches to hemorrhagic fever due to filoviruses. Ebola virus hemorrhagic fever is associated with robust interferon (IFN)-? production, with plasma concentrations of IFN-? that greatly (60- to 100-fold) exceed those seen in other viral infections, but little IFN-? production. While all of the type I IFNs signal through the same receptor complex, both quantitative and qualitative differences in biological activity are observed after stimulation of the receptor complex with different type I IFNs. Taken together, this suggested potential for IFN-? therapy in filovirus infection. Here we show that early postexposure treatment with IFN-? significantly increased survival time of rhesus macaques infected with a lethal dose of Ebola virus, although it failed to alter mortality. Early treatment with IFN-? also significantly increased survival time after Marburg virus infection. IFN-? may have promise as an adjunctive postexposure therapy in filovirus infection.

    View details for PubMedID 23255566

  • INFLUENZA VACCINE PRODUCTION FOR THE US MARKET BIOSECURITY AND BIOTERRORISM-BIODEFENSE STRATEGY PRACTICE AND SCIENCE Smith, L. M., Gronvall, G. K. 2009; 7 (3): 259-263

    View details for DOI 10.1089/bsp.2009.0921

    View details for Web of Science ID 000270717200009

    View details for PubMedID 19821749

  • Factors affecting survival of bacteriophage on tomato leaf surfaces APPLIED AND ENVIRONMENTAL MICROBIOLOGY Iriarte, F. B., Balogh, B., Momol, M. T., Smith, L. M., Wilson, M., Jones, J. B. 2007; 73 (6): 1704-1711

    Abstract

    The ability of bacteriophage to persist in the phyllosphere for extended periods is limited by many factors, including sunlight irradiation, especially in the UV zone, temperature, desiccation, and exposure to copper bactericides. The effects of these factors on persistence of phage and formulated phage (phage mixed with skim milk) were evaluated. In field studies, copper caused significant phage reduction if applied on the day of phage application but not if applied 4 or 7 days in advance. Sunlight UV was evaluated for detrimental effects on phage survival on tomato foliage in the field. Phage was applied in the early morning, midmorning, early afternoon, and late evening, while UVA plus UVB irradiation and phage populations were monitored. The intensity of UV irradiation positively correlated with phage population decline. The protective formulation reduced the UV effect. In order to demonstrate direct effects of UV, phage suspensions were exposed to UV irradiation and assayed for effectiveness against bacterial spot of tomato. UV significantly reduced phage ability to control bacterial spot. Ambient temperature had a pronounced effect on nonformulated phage but not on formulated phages. The effects of desiccation and fluorescent light illumination on phage were investigated. Desiccation caused a significant but only slight reduction in phage populations after 60 days, whereas fluorescent light eliminated phages within 2 weeks. The protective formulation eliminated the reduction caused by both of these factors. Phage persistence was dramatically affected by UV, while the other factors had less pronounced effects. Formulated phage reduced deleterious effects of the studied environmental factors.

    View details for DOI 10.1128/AEM.02118-06

    View details for Web of Science ID 000245156800003

    View details for PubMedID 17259361

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